Stainless steel pump room - Huazhen Water Factory direct sales

• Information Introduction

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  1Stainless steel pump roomsurvey:

  Huazhen Water Supply's Water Supply ProductionStainless steel pump roomIt mainly consists of a sealed structure water tank, boosting equipment, variable frequency control cabinet, stabilizer, and pump group. The system is divided into two inlet channels, one into the water tank and the other into the stabilizer. When the water consumption is low and the tap water service pressure is high, the integrated pump station of the living tank directly draws water from the tap water pipe network and supplies water by stacking. When the tap water service pressure is low, the boosting device starts to work, pressurizing the water in the water tank to the set service pressure and compensating for the difference, thereby achieving the goal of energy saving, no secondary pollution, and constant pressure water supply. It has no impact on the municipal water supply network and is an energy-saving product in the water supply field.

  

  

  

  
  

  Stainless steel pump roomImage:

  

  Schematic diagram of integrated pump station for living tank:

  

  two.Application of integrated pump station for living box pump:

  The integrated pump station of the living tank has replaced the traditional water tower,widely applicable;Production water for industrial and mining enterprises;Domestic and fire-fighting water for office buildings, shopping malls, hospitals, schools, etc; Residential water supply in residential areas, constant pressure heating and air conditioning circulating water systems, modern agricultural sprinkler irrigation, and water supply from urban and rural waterworks; Cold and hot water supply for hotels and restaurants; Temporary emergency water supply.

  three.Stainless steel pump roomFeatures

  1Maintain constant pressure

  The integrated pump station of the living box detects the outlet pressure in real time through a pressure sensor, compares the detected value with the set value, and determines the number of motors and pumps to be put into operation and the output frequency of the frequency converter (reflected as the motor and pump speed), in order to achieve the goal of constant pressure water supply. When the pressure fluctuation of the tap water network causes the pressure value to be lower than the normal pressure value, and the inflow is temporarily lower than the outflow, the system automatically closes the stabilizing device to a suitable position and starts the boosting device to pressurize through multi-point water intake. It knows that the inlet pressure has reached the normal pressure value of the municipal tap water network, ensuring that the equipment has sufficient water intake to meet the user's water demand.

  2Highly automated

  The system can achieve fully automatic control and has manual capabilities/Automatic switching, timed rotation of main and auxiliary pumps, pressure adjustment, constant voltage, high and low voltage protection, under phase protection, leakage protection, overload protection, overheating protection, water shortage protection, no water stop, instant trip protection and other functions. Alternatively, the human-machine interface can be configured according to user needs, allowing for visual remote adjustment, monitoring, and maintenance.

  3Hygiene

  The overcurrent components are made of food grade materials such as stainless steel, which comply with water related hygiene regulations.

  4Stacked operation, saving costs

  The system ensures constant pressure in the pipeline by adjusting the number of units and operating speed according to changes in water consumption. When the water consumption is high, the input power is high, and when the water consumption is low, the input power is low. When the water consumption is low (such as at night), the system is supplied with a low-power pump with variable frequency speed regulation and constant pressure water supply. The system has been running efficiently. Therefore, it greatly reduces operating costs. Can save energy60%The above.

  If there is a certain pressure in the municipal pipeline network, the operation only needs to supplement the pressure on the basis of the municipal pressure. Compared to traditional water supply equipment with reservoirs, it achieves the same function while drawing less power from the power grid.

  The system operates fully automatically without the need for dedicated personnel to be on duty: and due to the lack of civil water storage facilities such as reservoirs, as well as water quality treatment instruments, regular cleaning, disinfection, and other work are eliminated. Therefore, it further reduces operating costs.

Characteristics and analysis of box pump station:

The water consumption of users is generally dynamic, so situations of insufficient or excessive water supply may occur from time to time. The imbalance between water use and supply is mainly reflected in the pressure of water supply, where more water is used and less water is supplied, resulting in lower pressure; If there is less water and more water, the pressure is greater. Maintaining a constant water supply pressure can balance the supply and use of water, with more water supplied when using more and less water supplied when using less, thereby improving the quality of water supply.
The water pipeline pressurization equipment is very important for users. In the production and daily water supply, if the tap water supply is insufficient or temporarily cut off due to reasons, it may affect the quality of life, and in severe cases, it may affect survival safety. In the event of a fire, if the water supply pressure is insufficient or there is no water supply, it cannot be quickly extinguished, which may cause significant economic losses and casualties. Therefore, adopting a constant pressure water supply system in the water use area can generate significant economic and social benefits.
With the development of power technology and the continuous improvement of fully automatic tower free water supply technology, the intelligent water supply control system with no negative pressure variable frequency water supply equipment as the core has replaced the previous high-level water tank and pressure tank water supply equipment. The starting is smooth and the starting current can be limited to the rated current, thus avoiding the impact on the power grid during starting; Due to the decrease in the average speed of the pump, the service life of the pump and valves can be extended; It can eliminate the water hammer effect during start-up and shutdown. Its stable and safe operating performance, simple and convenient operation mode, and comprehensive and thoughtful functions will enable water supply to achieve water-saving, energy-saving, and labor-saving, ultimately achieving the goal of efficient operation.

Stainless steel pump room description:

1. Basic Description of Box Pump Station Control Technology:
The box pump station system is set with a constant pressure value. If the pipeline pressure is higher than the set pressure value, the pressure transmitter will feedback the pipeline pressure to the variable frequency control cabinet. The tap water can be directly supplied to the user's pipeline network through the direct supply pipeline. When the pressure of the municipal pipeline network changes or the water consumption of the user pipeline network changes, causing the pipeline pressure to be lower than the set pressure, the pressure transmitter feeds back the pipeline pressure to the PlD controller in the frequency conversion control cabinet. The PlD controller adjusts the output frequency of the frequency converter, starts the water pump unit, and adjusts the pump speed to maintain constant pressure water supply; If the water supply requirements cannot be met, the control cabinet will control the start and stop of multiple power frequency pumps and the speed of variable frequency pumps to achieve the requirement of constant pressure variable water supply.
2. Basic Description of Negative Pressure Elimination Technology for Box Pump Station
The box pump station adopts microcomputer frequency conversion technology and effective negative pressure treatment technology to achieve stacked water supply Specifically, as follows:
The non negative pressure variable frequency water supply equipment achieves direct serial connection with the tap water pipeline network through a vacuum compensation system and a fully enclosed structure, and overcomes the adverse effects on the pipeline network. The non negative pressure variable frequency water supply equipment collects the vacuum degree and water level signals inside the steady flow compensator through the pipeline pressure gauge, vacuum suppressor, and detection device in the steady flow compensator, and provides real-time feedback. The special devices in the vacuum suppressor and steady flow compensator are controlled by a microcomputer to suppress the generation of negative pressure and ensure that the equipment does not affect the urban pipeline network.
When the municipal pipeline network is shut down, the water pump unit can still work until the pressure in the steady flow compensator drops to the lower limit pressure set by the electrical contact, and then automatically stops. It will start automatically when water comes in. When there is a power outage, the water pump unit stops working, and tap water can enter the user's pipeline network through a direct pipeline. When a call is received, the unit automatically starts up and resumes normal water supply.

Eight advantages of stainless steel pump room:

(1) Efficient and energy-saving: Fully utilizing the pressure and heat energy inherent in municipal water sources, making up for the difference as much as possible, effectively and maximally exerting the energy-saving effect of variable frequency speed regulation.
(2) Clean and hygienic: It constitutes a continuous and enclosed pressurized water supply method, which maintains the water quality and hygiene standards of municipal water sources, fundamentally avoiding the water quality standard reduction and various water source pollution problems caused by the pressurized system.
(3) Eliminating waste: Not only has the high-level water tank been eliminated, but also the ground (underground) water tank has been completely eliminated, preventing water overflow and water source waste caused by regular cleaning.
(4) Low operating noise: When the series of automated water supply equipment products adopt a full frequency conversion adjustment scheme, they are mostly in low-noise operating conditions, especially at night.
(5) A fully enclosed water source tank with both buffering and dynamic compensation functions has been designed, which is more practical and simplifies the control system compared to the so-called 'no *' in the current market.

(6) The control system of this series of fully automatic tower free water supply products fully summarizes the design and manufacturing experience of our company and domestic and foreign variable frequency water supply equipment. It adopts standardized and universal control system technology solutions, and can be replaced with any manufacturer's frequency converter, regulator, PLC and other components. Debugging and maintenance are particularly convenient, laying a good foundation for the lifelong after-sales service of the product, and will not cause after-sales service problems due to technological progress.
(7) The control system of this series of fully automatic water supply equipment products has high intelligence, and the design fully considers the coordination and cooperation of machines, electricity, and instruments. It has detection and monitoring functions that can be achieved quickly but not quickly, as well as simple and convenient human-machine interaction functions. It has comprehensive fault protection functions and countermeasures. When the frequency converter fails to protect, it automatically operates in a degraded state (becoming a power frequency automatic water supply equipment). When the automatic system fails, it can also be manually operated as an emergency backup to win maintenance time.
(8) Various communication interfaces and protocols can be selected according to requirements, so as to connect various human-machine interfaces and monitoring computers, and can be connected to various control networks and communication networks, suitable for special and complex operation control and network monitoring requirements. We can develop supporting monitoring software for users.

Innovation points of stainless steel pump room technology:

1. Integrate the water tank and water pump used in the water supply system of the tap water pipeline, and place the water pump, control cabinet, non negative pressure device and other equipment in the water tank. Separate the equipment from the water in the water tank through the water tank partition. Due to the placement of the water pump inside the water tank (using a low-noise shielded pump), the noise of the equipment is greatly reduced.
2. The inlet of the variable frequency pump is connected to the non negative pressure device and the non negative pressure water device. When the pressure is sufficient, the non negative pressure device automatically opens, and the water is directly supplied by the municipal pipeline network, which is then pressurized by a booster pump to supply water to the user. When the non negative city device detects a decrease in pressure in the municipal pipeline network, the non negative pressure inlet device immediately starts and the non negative pressure device closes. At this time, the user pipeline is directly pressurized by pumping water from the water tank through the booster pump to ensure sufficient pressure in the user pipeline.
3. Intelligent solenoid valves are used at the inlet of the water tank to control the inlet pressure and water level. When the pressure in the pipeline decreases and the booster pump draws water from the water tank, intelligent control can be used. When the water level in the tank is below a certain level, the solenoid valve can be opened to release water from the pipeline, ensuring a certain pressure at the water intake. This measure can avoid peak water consumption and play a peak shaving role. It also avoids zero pressure discharge from ordinary water tanks, which is a good protection for pipeline pressure.
4. The water tank, water pump, pipelines, valves and other water related materials in this complete set of equipment are all made of food grade stainless steel materials, which will not cause secondary pollution to tap water. At the same time, the equipment is equipped with an intelligent circulation system, which automatically draws water from the water tank every 6 hours to ensure fresh water quality, hygiene and environmental protection.

Our company has independently developed another new type of water supply equipment product based on the non negative pressure variable frequency water supply equipment. It consists of five parts: water tank, pump group, steady flow tank, intelligent boosting and stabilizing device, and central control system. The equipment can utilize the pressure of the municipal pipeline network for non negative pressure variable frequency water supply, and can also draw water from the water tank for constant pressure variable frequency water supply equipment. It fully combines the advantages of constant pressure variable frequency water supply equipment and non negative pressure variable frequency water supply equipment. It uses air-cooled motors, air-cooled bearings, fully enclosed drip proof, with a noise level of less than 50 decibels to prevent small water tank space. It is a highly reliable non negative pressure variable frequency water supply equipment. The device also has a large remote (wireless) communication monitoring function and a user control room (optional); Humanized human-machine dialogue touch interface; Fully artificial intelligence control and remote warranty pre service.

◆Product advantages

·1. Adequate water supply: The box type non negative pressure water supply equipment can be connected in series with the municipal pipeline network to ensure that no negative pressure is generated in the municipal pipeline network. During peak water usage periods, the water in the closed water tank can be pressurized by computer-controlled variable frequency adjustment of the water pump, avoiding the flow of water required by users due to insufficient supply from the municipal pipeline network.

·2. Intelligent water supply: When the public water supply network is ≤ 0.2Mpa (can be freely set to 0.2-0.4Mpa), the non negative pressure device is turned off, the non negative pressure inlet device is turned on, and the water is supplied by the water tank; On the contrary, when the pressure of the public water supply network is ≥ 0.2Mpa, the delay time is 10 minutes (time adjustable). The non negative pressure device is turned on and the non negative pressure inlet device is turned off, and the water is supplied by the public water supply network.

·3. Clean water source and constant pressure: The water stored in the non negative pressure water tank is intelligently controlled to circulate every 6 hours to ensure fresh and clean water quality. The variable frequency pump of the box type non negative pressure water supply equipment operates at a constant speed, utilizing the existing pressure of tap water to achieve superposition and ensure the pressure required by the user is constant.

·4. Protection pressure: peak water usage is regulated, and an intelligent solenoid valve is used at the inlet of the water tank to control the inlet pressure and water level. When the pressure in the pipeline decreases and the booster pump draws water from the water tank, it can be intelligently controlled. When the water level in the tank is lower than the liquid level, the solenoid valve is opened to release water from the pipeline, ensuring the pressure at the water intake. This measure can avoid peak water usage and play a role in peak regulation. Secondly, it avoids zero pressure discharge from ordinary water tanks and provides good protection for pipeline pressure.

·5. Intelligent booster pump: When the tap water pressure can meet the user's water requirements, the booster pump is controlled to be in a sleep state through frequency conversion. When water is not used during peak hours and the tap water pressure cannot reach the user's water pressure, the water pump can add pressure to the tap water pressure (0.2-0.5MPa) to make up for the difference and fully utilize the remaining pressure to save electricity and energy.

·6. Environmentally friendly and pollution-free: All water passing materials of the product are made of 304 food grade stainless steel, and the matching pressure tank and water sealing material meet hygiene standards, which can avoid various water source pollution problems in traditional water tanks.

·7. Intelligent frequency conversion: During the stacked water supply period, the device can fully utilize the pressure potential energy of the municipal water source itself, compensate for the difference, and maximize the energy-saving effect of frequency conversion speed regulation.

·8. High efficiency and energy saving: In order to further reduce energy consumption and avoid excessive work, the product adopts automatic variable voltage control technology. This technology also effectively solves the problem of critical flow oscillation that is prone to occur during the transition process of adding and subtracting pumps, and improves the comfort of water supply.

·9. The designed frequency conversion control cabinet has high intelligence: it realizes the detection, alarm, and automatic switching of two water sources; Unified scheduling and reasonable management of water tank replenishment, storage, water source switching, and pressurization operation have been achieved.

◆Scope of application

·1. Applicable geographical scope: Suitable for pressurized water supply in areas with sufficient pressure in urban pipeline networks;

·2. Applicable engineering types: production of industrial and mining enterprises, industrial water use, and large-scale intermediate booster pump stations for water supply in water plants;

·3. Applicable engineering location: secondary pressurization system for water supply;

·4. Other applicable scope: Domestic water for new construction, renovation, expansion of residential buildings, office buildings, hotels, restaurants and other public buildings.

Huazhen is notStainless steel pump roomInstallation requirements:

　　1Before installation, carefully check whether there are any hard objects inside the pump body to avoid damaging the impeller and pump body during operation.

　　2During installation, pipeline management should not be added to the pump to prevent deformation and affect normal operation.

　　3Tighten the anchor bolts to prevent vibration during start-up from affecting the performance of the pump.

　　4Install regulating valves on the inlet and outlet pipelines of the pump, and install pressure gauges near the pump outlet to control the pump's operation within rated conditions and ensure its normal use.

5If a check valve is installed in the discharge pipeline, it should be installed outside the gate valve.

6The installation methods of pumps are divided into rigid connection installation and flexible connection installation.

Product Features
1. Integrated professional design, compact structure, direct installation of the system in the water tank (reducing the construction of pump rooms if outdoors), low investment, easy installation, and beautiful appearance.
2. By utilizing the superposition of pipeline pressure and automatic frequency conversion operation mode, the energy-saving effect has been significantly improved (40% for large pipelines).
3. Easy to install, with only one municipal pipeline inlet and one water supply outlet.
4. Stable operation, low vibration, and low noise (noise level below 60 decibels).
5. The system's water supply is stable (even if the pipe network is temporarily cut off, it can still be supplied through the water tank), fully ensuring the pressure at the end of the system.
6. Automatic inspection function can be added to reduce property management costs.
7. Adopting PLC programmable control for fully automatic operation, easy operation and maintenance.
　　
Scope of Application
Residential, office buildings, shopping malls, hotels, hospitals and other types of buildings provide water supply for daily life. Especially suitable for occasions that require uninterrupted water supply.
　　
Product components
1. Combination stainless steel water tank (with pump room).
2. Intelligent electrical control system.
3. Low noise stainless steel multi-stage centrifugal pump (KCDL series).
4. No negative pressure inlet device and anti backflow device.
5. Complete set of stainless steel pipelines.
6. Pressure and liquid level signal acquisition, feedback facilities.

Stainless steel pump roomalso known asVariable frequency booster pump for water tankPrinciple of Setting:

Tap water enters the regulating tank, and the air inside the tank is discharged from the vacuum eliminator. After the water is filled, the vacuum eliminator automatically shuts off. When the tap water can meet the requirements of water pressure and quantity, the equipment supplies water directly to the water pipe network through a bypass check valve; When the pressure of the tap water network cannot meet the water requirements, the system sends a pump start signal through a pressure sensor (or pressure controller, electric contact pressure gauge) to start the water pump operation. When the water pump is supplying water, if the water volume in the tap water network is greater than the flow rate of the water pump, the system will maintain normal water supply; During the peak water usage period, if the water volume in the tap water network is less than the flow rate of the water pump, the water in the regulating tank can still be supplied normally as a supplementary water source. At this time, air enters the regulating tank through a vacuum eliminator, eliminating the negative pressure in the tap water network. After the peak water usage period, the system returns to normal. If the tap water supply is insufficient or the pipe network is shut down, causing the water level in the regulating tank to continuously decrease, the liquid level will give a pump shutdown signal to protect the pump unit. During nighttime and low flow water supply, water can be supplied through a small expansion tank to prevent frequent starting of the water pump.
Stainless steel pump roomThe key technical components are the intelligent control system (variable frequency type) and the vacuum elimination of the regulating tank. The core part of the intelligent control system adopts Siemens programmable controller, and the programming and design of the software are carefully developed by our professional technical engineering personnel based on the operating characteristics of the water pump and years of experience in variable frequency water supply engineering. The equipment has many characteristics such as intuitive interface, easy and reliable operation, stable performance, and high intelligence. Adjusting the vacuum elimination of the tank is also a key technology of this project. The implementation of pipeline overlay relies on the vacuum eliminator on the tank to timely eliminate the vacuum inside the tank when the water is evacuated, thereby achieving stable pressure inside and outside the tank, without causing negative pressure impact on the municipal pipeline network, and without affecting the normal water use of other municipal pipeline users.

The frequency converter isStainless steel pump roomapplication

1. Characteristics and Analysis of Variable Frequency Speed Control

The amount of water used by users is constantly changing, so situations of insufficient or excessive water supply occur from time to time. The imbalance between water use and supply is mainly reflected in the pressure of water supply, where more water is used and less water is supplied, resulting in lower pressure; If there is less water and more water, the pressure is greater. Maintaining a constant water supply pressure can balance the supply and use of water, with more water supplied when using more and less water supplied when using less, thereby improving the quality of water supply.

Variable frequency booster pump for water tankPrice is very important for certain industries or special users. For example, in some production processes, if the tap water supply has insufficient pressure or is temporarily cut off due to unforeseen circumstances, it may affect product quality and, in severe cases, result in product scrap and equipment damage. For example, in the event of a fire, if the water supply pressure is insufficient or there is no water supply, the fire cannot be quickly extinguished, which may cause significant economic losses and casualties. So, some water use areas adoptVariable frequency booster pump for water tankPrice has significant economic and social implications.

With the development of power technology and the continuous improvement of variable frequency speed regulation technology, intelligent systems with variable frequency speed regulation as the core are emergingVariable frequency booster pump for water tankPrice has replaced previous high-end water tanks and pressure tanksVariable frequency booster pump for water tankThe startup is smooth and the starting current can be limited within the rated current, thus avoiding the impact on the power grid during startup; Due to the decrease in the average speed of the pump, the service life of the pump and valves can be extended; It can eliminate the water hammer effect during start-up and shutdown. Its stable and safe operating performance, simple and convenient operation mode, and comprehensive and thoughtful functions will enable water supply to achieve water-saving, energy-saving, and labor-saving, ultimately achieving the goal of efficient operation.

2Stainless steel pump roomVariable frequency application method

Usually, multiple commonly used pumps are installed in the same water supply system. When the water supply is large, multiple pumps are fully turned on, and when the water supply is small, one or two pumps are turned on. When using variable frequency constant voltageVariable frequency booster pump for water tankWhen providing constant pressure water supply, two methods are used: one is to equip all water pumps with a frequency converter; The second is that each water pump is equipped with a frequency converter. The latter method, based on the pressure feedback signal, usesPID operation automatically adjusts the output frequency of the frequency converter, changes the motor speed, and ultimately achieves the goal of constant pressure in the pipeline network. It is a closed-loop circuit, which is relatively simple but costly. The former method has lower cost and performance than the latter, but the control program is more complex, which is the future development direction. Our company has developed the NKL-A series variable frequency constant voltageVariable frequency booster pump for water tankThe system can achieve the function of controlling any number of motors with a frequency converter. The principles mentioned below are all systems where a frequency converter drives multiple motors.

3Stainless steel pump roomPrinciple of PID Control

According to the feedback principle, in order to maintain a physical quantity unchanged or essentially unchanged, it should be compared with a constant value to form a closed-loop system. To maintain a constant water pressure, we must introduce a water pressure feedback value to compare with the given value, thus forming a closed-loop system. But the controlled system is characterized by nonlinearity and large inertia, and now control andThe method of combining PID and fuzzy control is used to accelerate response speed when pressure fluctuations are significant; When the pressure range is small, PID is used to maintain static accuracy. This algorithm can be implemented through PLC and intelligent instruments, while programming the PLC to switch between the power frequency and frequency conversion of the pump. Practice has proven that using this method is feasible and cost-effective.

Stainless steel pump roomTo maintain a constant pressure in the water supply network, a pressure transmitter is installed as a feedback component in the management of the network system according to the feedback theorem. Due to the long and large diameter of the water supply system pipeline, the filling of the network is slow, making the system a large lag system and difficult to directly adoptPID controller is used for control, and PLC is used to participate in control to achieve the regulating effect on the control system.

4Stainless steel pump roomPrinciple of Variable Frequency Control

Using variable frequency speed regulation to achieve constant pressure water supply has a significant energy-saving effect compared to using regulating valves to achieve constant pressure water supply (which can be calculated according to specific situations). Its advantages are:

a、 Starting balance, the starting current can be limited within the rated current, thus avoiding the impact on the power grid during starting;

b、 Due to the decrease in the average speed of the pump, the service life of the pump and valves can be extended;

c、 Can eliminate the water hammer effect during start-up and shutdown;

Generally speaking, when a frequency converter controls an electric motor, it is only necessary to match the capacity of the motor equipped with the frequency converter with the actual motor capacity. When a frequency converter controls two motors simultaneously, the capacity of the motor equipped with the frequency converter should be equal to the sum of the capacities of the two motors. But when the water consumption during peak load is much different from the full speed water supply of two pumps,

Consider reducing the capacity of the frequency converter appropriately, but pay attention to leaving enough capacity.

Although the water pump operates at low speed, the working current of the electric motor is relatively small. However, when the user's water consumption changes frequently, the motor will be in a state of frequent speed increase and decrease, and the current for speed increase and decrease may slightly exceed the rated current of the motor, resulting in overheating of the motor. Therefore, thermal protection for electric motors is necessary. For the temperature rise accumulated due to frequent speed increase and decrease, the electronic thermal protection function inside the inverter is difficult to protect, so a thermal relay should be used for motor thermal protection.

In terms of preset main functions, the frequency should be based on the rated frequency of the motor as the operating frequency of the frequency converter. The acceleration and deceleration time is adoptedIn the case of a PID controller, the acceleration and deceleration time should be set as short as possible to avoid affecting the dynamic response process determined by the PID controller. If the frequency converter itself has PID regulation function, as long as the PID function is set to be effective during the preset, the set acceleration and deceleration time will automatically become invalid.

HuazhenStainless steel pump roomProduct Features:

1Integrated professional design, compact structure, direct installation of the system in the water tank (reducing the construction of pump rooms if outdoors), low investment, easy installation, and beautiful appearance.

2The smart pump room utilizes the superposition of pipeline pressure and automatic frequency conversion operation mode, which significantly improves the energy-saving effect(Big job40％).

3Easy to install, with only one municipal pipeline inlet and one water supply outlet.

4Stable operation, low vibration, and low noise (noise level below)60Decibel level).

5The smart pump room system provides stable water supply (even if the pipeline is temporarily cut off, it can still supply water normally through the water tank), fully ensuring the pressure at the end of the system .

6It can be equipped with automatic inspection function to reduce property management costs.

7Huazhen Smart Pump House adoptsPLCProgrammable control for fully automatic operation, easy to operate and maintain.

HuazhenStainless steel pump roomScope of application:

1Newly built residential communities or office buildings for domestic water use.

2Low level tap water pressure cannot meet the requirements for firefighting water.

3Transforming the original pneumatic water tank with a variable frequency booster pump can fully utilize the existing pneumatic tank.

4For those who have already built a water tank, an intelligent pipeline network relay boosting (no negative pressure) device can be used to share the water supply with the tank.

5The large-scale intermediate booster pump station for water supply in the water plant.

6Production and domestic water use of industrial and mining enterprises.

7Various circulating water systems

HuazhenStainless steel pump roomProduct components:

1Combination stainless steel water tank (with pump room).

2Intelligent electrical control system.

3Low noise stainless steel multi-stage centrifugal pump（KCDLSeries).

4No negative pressure inlet device and anti backflow device.

5Stainless steel complete piping system.

6Pressure and liquid level signal acquisition and feedback facilities.

- Intelligent Box Pump Station-Scope of use:1. Water supply for high-rise buildings and city high buildings 2. Heating and pressurization for high-rise buildings- Intelligent Box Pump Station-3. OriginalIntelligent Box Pump Station transformation4. Industrial water supply- Intelligent Box Pump Station -5. Fire water supply 6. Directly take water from the well for water supply (no need for secondary water lifting). The water supply system uses imported stainless steel booster pumps, stainless steel valves, compensation tanks, and pipelines made of all stainless steel materials, which are pollution-free and corrosion-resistant. Changsha Huazhen EquipmentIntelligent Box Pump Station As a major professional manufacturer of water supply equipment in the five provinces of central and southern China, the limited company,Intelligent Box Pump Station Intelligent Box Pump Station factory,Intelligent Box Pump Station factory,Intelligent Box Pump Station factory,Intelligent Box Pump Stationcontrol cabinetWater supply equipment, centrifugal pumps and other water supply equipment factory products

The traditional water supply method cannot do without reservoirs, and the water in reservoirs is usually supplied by the tap water network. In this way, pressurized water enters the reservoir and becomes zero, resulting in a large amount of energy waste.ZWL intelligent non negative pressure steady flow water supply equipment is a complete set of water supply equipment developed by our professional technical personnel based on pneumatic water supply equipment, which can be directly connected to the tap water pipeline network and does not have any negative effect on the tap water pipeline network. It can replace reservoirs and fully utilize the pressure of the tap water network to directly or indirectly supply water, avoiding secondary energy waste and pollution, significantly saving infrastructure investment and shortening construction period. The ZWL intelligent non negative pressure steady flow water supply equipment consists of an intelligent variable frequency control cabinet, a steady flow tank, a water pump unit, instruments, valves and pipelines, a base, etc. It is suitable for all water supply systems that require increased water pressure and constant flow. Suitable for all water supply systems that require increased water pressure and constant flow rate. Environmental conditions 1 Environmental temperature: 5-40 ℃ 2 Relative humidity of the air: ≤ 85% (at 20 ± 5 ℃) 3 Medium temperature: 4-70 ℃ 4 Supply voltage: 380V (+5%, -10%)

Product advantages

·1. Adequate water supply: The box type non negative pressure water supply equipment can be connected in series with the municipal pipeline network to ensure that no negative pressure is generated in the municipal pipeline network. During peak water usage periods, the water in the closed water tank can be pressurized by computer-controlled variable frequency adjustment of the water pump, avoiding the flow of water required by users due to insufficient supply from the municipal pipeline network.

·2. Intelligent water supply: When the public water supply network is ≤ 0.2Mpa (can be freely set to 0.2-0.4Mpa), the non negative pressure device is turned off, the non negative pressure inlet device is turned on, and the water is supplied by the water tank; On the contrary, when the pressure of the public water supply network is ≥ 0.2Mpa, the delay time is 10 minutes (time adjustable). The non negative pressure device is turned on and the non negative pressure inlet device is turned off, and the water is supplied by the public water supply network.

·3. Clean water source and constant pressure: The water stored in the non negative pressure water tank is intelligently controlled to circulate every 6 hours to ensure fresh and clean water quality. The variable frequency pump of the box type non negative pressure water supply equipment operates at a constant speed, utilizing the existing pressure of tap water to achieve superposition and ensure the pressure required by the user is constant.

·4. Pressure: Regulating peak water usage, an intelligent solenoid valve is used at the inlet of the water tank to control the inlet pressure and water level. When the pressure in the pipeline decreases and the booster pump draws water from the water tank, it can be intelligently controlled. When the water level in the tank is lower than the liquid level, the solenoid valve is opened to release water from the pipeline, ensuring the pressure at the water intake. This measure can avoid peak water usage and play a role in peak regulation. Secondly, it avoids zero pressure discharge from ordinary water tanks and provides good protection for pipeline pressure.

·5. Intelligent booster pump: When the tap water pressure can meet the user's water requirements, the booster pump is controlled to be in a sleep state through frequency conversion. When water is not used during peak hours and the tap water pressure cannot reach the user's water pressure, the water pump can add pressure to the tap water pressure (0.2-0.5MPa) to make up for the difference and fully utilize the remaining pressure to save electricity and energy.

·6. Environmentally friendly and pollution-free: All water passing materials of the product are made of 304 food grade stainless steel, and the matching pressure tank and water sealing material meet hygiene standards, which can avoid various water source pollution problems in traditional water tanks.

·7. Intelligent frequency conversion: During the stacked water supply period, the device can fully utilize the pressure potential energy of the municipal water source itself, compensate for the difference, and maximize the energy-saving effect of frequency conversion speed regulation.

·8. High efficiency and energy saving: In order to further reduce energy consumption and avoid excessive work, the product adopts automatic variable voltage control technology. This technology also effectively solves the problem of critical flow oscillation that is prone to occur during the transition process of adding and subtracting pumps, and improves the comfort of water supply.

·9. The designed frequency conversion control cabinet has high intelligence: it realizes the detection, alarm, and automatic switching of two water sources; Unified scheduling and reasonable management of water tank replenishment, storage, water source switching, and pressurization operation have been achieved.

◆Scope of application

·1. Applicable geographical scope: Suitable for pressurized water supply in areas with sufficient pressure in urban pipeline networks;

·2. Applicable engineering types: production of industrial and mining enterprises, industrial water use, and large-scale intermediate booster pump stations for water supply in water plants;

·3. Applicable engineering location: secondary pressurization system for water supply;

·4. Other applicable scope: Domestic water for new construction, renovation, expansion of residential buildings, office buildings, hotels, restaurants and other public buildings.