Fully automatic unmanned variable frequency water supply equipment - Huazhen Water Sales

I. Overview
Fully automatic unmanned variable frequency water supply equipmentIt is a new generation product developed and produced based on the characteristics of fire protection, daily life, and production water. It adopts microcomputer programmable control technology and adjusts various complex tasks according to the various situations of the water supply network and water sources through microcomputer control, achieving intelligent water supply.
The fully automatic variable frequency constant pressure water supply equipment is an ideal energy-saving water supply equipment, with good energy-saving effect, compact structure, small footprint, stable and reliable operation, long service life, flexible scheme design, adjustable water supply pressure, and adjustable flow rate. It can replace water towers, high-level water tanks, and various pneumatic water supply equipment, and can avoid secondary pollution of water quality. The fully automatic variable frequency constant pressure water supply equipment is also used to renovate the original old-fashioned pump room equipment, and the renovated equipment can also achieve the goal of high efficiency, energy saving, and automatic constant pressure water supply.

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 AI controlled and remote warranty pre serviceService.

IIFully automatic unmanned variable frequency water supply equipmentfeature
1. Efficient and energy-saving
Fully automatic unmanned variable frequency water supply equipmentIt can automatically detect and adjust the speed (power consumption) of the electric motor based on the actual water consumption and pressure of the user, so that the equipment is always in a high-efficiency working state.
2. Stable pressure in the water supply network
The fully automatic variable frequency constant pressure water supply equipment is composed of a microcomputer for automatic closed-loop control, which can restore the changing pressure to normal within 0.5 seconds, and the pressure regulation accuracy is ± 5% of the set value.
3. Small footprint, low investment, and short installation period.
Fully automatic unmanned variable frequency water supply equipmentCompared with other old-fashioned water supply equipment, it saves 3-16 times the land occupation and 15% -60% of investment compared to building water towers. The equipment has a small volume, easy assembly, installation and debugging, and a short transportation and installation period.
4. Full protection function, safe and reliable operation, easy operation
The main unit of the fully automatic variable frequency constant pressure water supply equipment adopts an imported variable frequency speed controller, which has protection functions such as undervoltage, overvoltage, overcurrent, overload, short circuit, overheating, stall prevention, etc. It has been used for more than 100000 hours. The power distribution control part of the equipment adopts intelligent control principles, which are easy to operate and practical. The working status of the equipment is clear at a glance, making it easy for non professionals to quickly master.
5. Full water supply function, high insurance factor
Fully automatic unmanned variable frequency water supply equipmentWhen a local malfunction occurs, the emergency function can be activated to continue supplying water. The Yangtze River equipment can automatically connect to the municipal water supply network and has dual constant pressure function, which can meet the normal pressure and flow of domestic and production water. It can automatically switch to high-pressure and high flow water supply in case of fire, and can be used for multiple purposes.
6. Scope of application
The fully automatic variable frequency constant pressure water supply equipment has a water supply pressure of 0.15~2.0MP, a water supply height of 10-200 meters, and a single set of equipment can supply water at a rate of 10~50000m3/h. It can be used for the matching transformation of large, medium, and small tap water; Can be used for production, living, and office water in enterprises, residential areas, and rural areas.

Stainless steel water tank is a new generation of water tank product after fiberglass water tank. Its product is made of SUS304 stainless steel plate precision molded, with beautiful appearance, economic practicality, and long-lasting durability. Compared with other water tanks, stainless steel water tanks have many advantages such as light weight, high temperature resistance, corrosion resistance, high temperature resistance, clean water quality, anti-seepage, earthquake resistance, no moss growth, no secondary pollution of water quality, easy installation, no need for maintenance, and easy cleaning.

Product Parameters

Welding seam of water supply tank, indoor box typeFully automatic unmanned variable frequency water supply equipmentMaterial: Based on the technical parameters of the stamped stainless steel water tank, the accessories of the water tank are made of ordinary carbon steel plate and profiled steel, welded with LB304NI8.0 welding rod, and their quality should comply with the current standards "Carbon Structural Steel" and "Carbon Steel Welding Rod".

The splicing of LB304 stainless steel plates on the top, walls, and bottom of the box adopts butt welding (I-type welding for the top plate, V-type welding for the bottom plate and side walls), and other welding is fillet welding. There is no cross crossing phenomenon between the welds, and they must not overlap with the ribs. The welding machine is LB-2-300 stainless steel water tank welding machine, which has the functions of electric welding and argon welding.

Comparison between stainless steel water tank and other water tanks

Innovation points of fully automatic unmanned variable frequency water supply equipment 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.

Fully automatic unmanned variable frequency water supply equipmentTechnical conditions

1) The power supply should be reliable and should be dual power or dual circuit power supply. Has power adaptability, with device input voltage fluctuations and controller input voltage fluctuations not exceeding rated voltage±At 10%, it should be able to work normally. 2) The equipment should have the function of automatically adjusting the water pump speed and soft start. When supplying water at a constant pressure, the difference between the set pressure and the actual pressure shall not exceed 0.01 MPa; When using variable pressure water supply, the working pressure of the water supply system should be changed according to the working characteristic curve of the pipeline. 3) The equipment should have a water level in the pool“call the police”And the water pump control function, when the water level exceeds“call the police”When it drops to the water level“call the police”When the pump is stopped and restored to the starting water level, it will automatically start. 4) The equipment should have windows for observing the set pressure and actual pressure display, water pump power supply frequency display, and fault observation display. 5) The equipment should perform self inspection and alarm for various faults, and automatically or manually eliminate alarms for recoverable faults to restore normal operation. 6) The equipment should have protection functions for overload, short circuit, overvoltage, phase loss, undervoltage, overheating, etc. 7) Environmental requirements for equipment: (1) Temperature: 5-40℃（2) Relative humidity: Temperature 20℃When, not greater than90%. (3) Altitude: should not exceed 1000m. (4) The location where the equipment is installed should be free of conductive or explosive dust, gases or vapors that corrode metals or damage insulation. Gas or vapor that destroys insulation. 8) Requirements for the installation of electrical control cabinets: (1) The bottom of the cabinet should be 0.1m above the ground. (2) The distance between the top of the cabinet and the roof (slab top) should not be less than 1.0m. (3) There should be a 0.8m passage between the back wall of the cabinet and the wall. 9) The pipeline system should be equipped with a drainage device at this location. 10) To select products that meet industry standards, choose products that have undergone identification (evaluation) and type testing of the entire machine.

Fully automatic unmanned variable frequency water supply equipmentThe execution standards

1) Product Standard: Microcomputer ControlVariable frequency booster pump for water tank How to translateJG/T 3009-93 "Safety Evaluation Standards for Drinking Water Transmission and Distribution Equipment and Protective Materials" GB/T 17219

–1998 "Pump Equipment with Frequency Converter for Liquid Pumps - Assurance and Compatibility Testing" EN12483-1999 2), engineering standard "Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering" GB 50242-2002 "Code for Design of Building Water Supply and Drainage" GB 50015-2003.

Fully automatic unmanned variable frequency water supply equipment

Application fields:

1. Pressurization system for water plants and supply stations

2. Residential communities, high-rise buildings, hotels and restaurants, production and domestic water supply

3. Water saving sprinkler irrigation and drip water supply for garden lawns

4. Constant pressure water supply system in industrial production (printing and dyeing, textile, chemical, beverage, smelting)5. Upgrading and replacement of old high-level water tanks and water tower water supply systems

Fully automatic unmanned variable frequency water supply equipment

Performance Characteristics

1. Directly connected to the municipal pipeline network without the need to build a water tank.

2. Small in size, occupying less space, and easy to install.

3. The water source tank and pump unit are all made of stainless steel, and the water has no secondary pollution.

4. The water pressure is stable and will not cause pressure fluctuations in adjacent user pipelines.

5. Fully automatic operation, capable of unmanned operation.

6. Complete protection functions, automatic fault display, and alarm.

7. Fully utilize the original tap water pressure, make up for the difference, and achieve high efficiency and energy conservation.

8. When the municipal pipeline network is under high pressure, the equipment is in a shutdown state, and the municipal water source directly supplies water to the user pipeline network through the bypass pipeline of the water source tank9. When the municipal pipeline network is under pressure, the equipment automatically starts and starts the pump on the basis of the original water pressure to provide variable frequency speed regulation and pressure boosting water supply.

Fully automatic unmanned variable frequency water supply equipmentTechnical Specifications:

Flow range:6-300m3/h Head range: 30-200m Working pressure: ≤ 2.0mpaScope of application:

Fully automatic unmanned variable frequency water supply equipment

Suitable for pressurized water supply in any area with insufficient tap water pressure.

Newly built residential communities or office buildings for domestic water use.The pressure of low-level tap water cannot meet the requirements for firefighting water.■ Modify the existing air pressure

Variable frequency booster pump for water tank

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If a water tank must be built, a non negative pressure equipment can be used to share the water supply with the tank, further saving energy.

Large scale intermediate booster pump station for water supply in the water plant.

Production and domestic water use of industrial and mining enterprises.Various circulating water systems.

Fully automatic unmanned variable frequency water supply equipmentWorking Principle:

Fully automatic unmanned variable frequency water supply equipmentPut into use, the water from the tap water network enters the water supply 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 pressure of the tap water network can meet the water requirements, the system supplies water directly to the water network through a bypass check valve; When the pressure of the tap water network cannot meet the water demand, the system pressure signal is fed back to the variable frequency controller through a remote pressure gauge. The water pump runs and automatically adjusts the speed and constant pressure water supply according to the amount of water used. If the running water pump reaches the power frequency speed, another water pump will start variable frequency 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 peak water usage, if the water volume in the tap water network is less than the flow rate of the water pump, the water in the supply tank can still be supplied normally as a supplementary water source. At this time, air enters the supply tank through a vacuum eliminator, and the vacuum inside the tank is destroyed, ensuring that the tap water network does not generate negative pressure. After the peak water usage, the system returns to normal water supply. When the water supply network is shut down, causing the liquid level in the water supply tank to continuously decrease, the liquid level detector will feedback the signal to the variable frequency controller, and the water pump will automatically stop to protect the water pump unit. The water supply tank can store and release energy, avoiding frequent starting of the water pump.

Fully automatic unmanned variable frequency water supply equipment
Characteristics of
1. Save investment: No need to build reservoirs or roof water tanks, adopt stacked water supply, reduce initial equipment investment. Therefore, compared with ordinary tower less water supply equipment, it can save about 50% of investment.
2. Efficient and energy-saving, with low operating costs: Traditional water supply systems first store the original water from the tap water pipe in a water tank, releasing all the original tap water pressure to zero, and then pressurize from scratch, wasting the original energy. According to the "Water Supply Equipment Promotion Center", tower free water supply equipment can fully utilize the water supply pressure of the municipal pipeline network. It can save energy by 30% to 90% compared to traditional water supply equipment, with no negative pressure generated. Power outages can also maintain the water pressure and supply of the municipal pipeline network.
3. High degree of intelligence, simple operation, and labor-saving: The device is controlled by a fully automatic intelligent controller, which adjusts itself according to the user's water consumption and the tap water pressure of the pipeline network, and is unmanned. And it adopts a human-machine interface (text, numbers) display, allowing customers to more intuitively see the operation status of the equipment.4. Environmental hygiene: The equipment operates in a fully enclosed manner, and CD eliminates secondary pollution of the water source.5. LYFG Fully Automatic Intelligent Negative Pressure Free Frequency Conversion
water supply equipment
Complete protection functions: It has automatic protection functions such as overload, short circuit, overvoltage, undervoltage, phase loss, overcurrent, and water shortage for WM. Can perform signal alarm, self check, fault diagnosis, etc. in abnormal situations.