Constant temperature and humidity air conditioner, independent temperature and humidity control air conditioner

Constant temperature and humidity air conditioner, independent temperature and humidity control air conditionerIt is an air conditioner that can control the ambient temperature and humidity.

Also known as computer room air conditioning, constant temperature and humidity machineConstant Temperature and Humidity Chamber Constant Temperature and Humidity Testing Machine Constant Temperature and Humidity Air Conditioning Constant Temperature and Humidity Laboratory Constant Temperature and Humidity Unit Constant Temperature and Humidity Test Room Constant Temperature and Humidity Chamber Price

  It must have temperature and humidity detection functions, and the intelligent control motherboard should perform corresponding cooling, heating, dehumidification, and humidification work according to the set requirements to achieve the requirements of constant temperature and humidity environment.

  The difference between constant temperature and humidity air conditioning and household air conditioning:

  Constant temperature and humidity air conditioning is very different from ordinary household air conditioning and cannot be replaced:

  1， The constant temperature and humidity air conditioner adopts a high air volume and low enthalpy difference air supply method to maintain low temperature and humidity uniformity. Ordinary household air conditioners strive for comfort in terms of air supply. The air supply volume of a general constant temperature and humidity air conditioner is the same as that of a regular household air conditioner2~3Twice.

  2， Due to rapid changes in humidity, the unit requires frequent dehumidification, and constant temperature and humidity air conditioners use refrigeration dehumidification methods, so it is required that the air conditioning refrigeration system can be started frequently, which places very high demands on the refrigeration system; The household air conditioning compressor cannot be started frequently and is equipped with a three minute shutdown protection for the compressor.

  3， The constant temperature and humidity air conditioner has a powerful independent control motherboard, which must have temperature, humidity detection, and airflow detection functions. With the increasing requirements of the computer room, the control motherboard has gradually added functions such as automatic power on, fault warning, historical data storage, data output, and network monitoring. However, household air conditioners have very few additional functions.

  Secondly,Constant temperature and humidity air conditioner, independent temperature and humidity control air conditionerClassification of

  According to the refrigeration method, it can be divided into: air-cooled chilled water type;

  According to the air supply method, it can be divided into: upward side return, upward bottom return, and downward air supply types;

  According to control accuracy, it can be divided into ordinary constant temperature and humidity air conditioners and high-precision constant temperature and humidity air conditioners.

  3、 High precision constant temperature and humidity laboratory air conditioning

  Control accuracy up to: temperature accuracy±1.0℃The humidity accuracy reaches±2.0%A high-precision constant temperature and humidity air conditioner is called a constant temperature and humidity air conditioner.

  Due to the fact that these types of air conditioners are mostly used in laboratories that are particularly sensitive to temperature and humidity, such as papermaking, textiles, pharmaceuticals, tobacco, electronics, and metrology, they are also known as laboratory air conditioners.

  1， The difference between high-precision constant temperature and humidity laboratory air conditioning and ordinary computer room air conditioning:

AHigh precision constant temperature and humidity laboratory air conditioning must be equipped with high-precision temperature and humidity sensors, which are required

  accurate indeed Degree:±1.5%RH, ±0.3℃(in23±2℃time)

  heavy again Sex: superior to0.5%RHand0.1℃ 

  stable fixed Sex: Better than annually1.0%RHand0.1℃

  And the accuracy of air conditioning sensors in ordinary computer rooms is±3%RH, ±1℃Left and right are enough;

BHigh precision constant temperature and humidity laboratory air conditioning requires higher air volume

  In theory, the larger the air volume, the smaller the enthalpy difference of the supply air, and the more uniform the temperature and humidity; But the larger the air volume, the smaller the dehumidification capacity, and even the loss of *. Therefore, high-precision constant temperature and humidity air conditioners require maximum air volume while ensuring dehumidification capacity, and the design of air volume is very strict, while ordinary computer room air conditioners have lower requirements.

CThe high-precision constant temperature and humidity laboratory air conditioning requires adjustable heating capacity, cooling capacity, humidification capacity, and dehumidification capacity

  Due to the requirement of precision, high-precision constant temperature and humidity laboratory air conditioning requires adjustable heating capacity, cooling capacity, humidification capacity, and dehumidification capacity.

  ※ For heating, a multi-stage heating method is used to adjust according to the temperature difference. When the temperature difference is small, only one stage of heating is turned on, and when the temperature difference is slightly large, it is turned on at the same time1，2Level heating, when the temperature difference is large, turn it on at the same time1，2，3Grade heating;

  ※ For humidification, a proportional display method is used to control the humidification amount based on the humidity difference;

  ※ There are currently three adjustment methods for cooling and dehumidification:

  1， *The substitute regulation method adopts multi-stage refrigeration and is generally used for high-power equipment. It is mainly used for temperature regulation and has little effect on humidity regulation;

  2， The second-generation regulation method adopts variable frequency refrigeration, with a cooling capacity of50%--100%Realize stepless cooling regulation between them, and this adjustment range is sufficient to solve the problem of temperature and humidity stability. Used for high-precision constant temperature and humidity laboratory air conditioning, *. The main brands now are“Jotun”. However, due to control requirements, many auxiliary control links need to be added, and the components must be closely coordinated. If a small fault occurs in a certain link, it may cause damage to important components such as compressors due to chain reactions. The failure rate is very high in actual operation;

  3The third generation regulation method is the chilled water type refrigeration method, which uses chilled water (designed according to the general air conditioning water temperature) as the non cooling source, and the operation inside the coil is ordinary7℃The cold water on both sides can be easily controlled by adjusting the opening of the water valve on the computer motherboard0to100%The refrigeration capacity is infinitely adjustable. And the structure of the integral valve is as simple as household water, with a very long service life and long-term operation.

  Furthermore, the enthalpy of water is the same as that of air1000Bei, it's a snow seedR22of800Twice. Using chilled water refrigeration, the maximum temperature difference between the inlet and outlet is5℃The following more effectively ensures the uniformity and reliability of the supply air temperature. The temperature difference between the front and end of the snow seed in the direct expansion refrigeration coil reaches10℃.

  The chilled water air conditioning unit is used for high-precision constant temperature and humidity laboratory air conditioning, with a very low failure rate. Constant temperature and humidity machineConstant Temperature and Humidity Chamber Constant Temperature and Humidity Testing Machine Constant Temperature and Humidity Air Conditioning Constant Temperature and Humidity Laboratory Constant Temperature and Humidity Unit Constant Temperature and Humidity Testing LaboratoryThe main brands are controlled by countries such as Europe, America, and Japan. After its launch, the Chuanben brand has been widely used in laboratory fields, including textile laboratories, tobacco laboratories, paper laboratories, pharmaceutical laboratories, electronic laboratories, metrology laboratories, and other fields. Made in China is about to go global. Choosing Kawamoto means choosing *!

• set prepare rule Fan say bright

press shrink Machine: Adopting high-efficiency fully enclosed compressors with independent refrigerant piping systems.

cold condense device： The air-cooled unit adopts a finned air-cooled condenser, and the air supply fan adopts an axial flow fan; The water-cooled unit adopts a shell and tube condenser(Having pressure vessel manufacturing certification).

steam send Tool: Adopting a finned evaporator with a distribution head at the inlet1The group adopts a multi loop design to accelerate cooling effect and reduce coil resistance. The copper tube is made of imported high heat transfer coefficient straight pipe, and the fins are made of colored aluminum fins to prevent corrosion and extend the service life of the fins.

膨 swell Valve: Using an external pressure equalization expansion valve or capillary tube to control the evaporation capacity and temperature of the refrigerant.

wind car group： Multi wing double suction centrifugal wind turbine set has high air volume and low operating noise. According to customer requirements, it can be driven directly by a motor or driven by a pulley to adjust the air volume and pressure appropriately when necessary.

Air supply motor: Adopting Dongyuan, DatongABBFactory motor with adjustable base

Temperature and humidity control: Adopting electronic temperature and humidity control, and displaying the indoor ambient temperature, it can accurately maintain the control of indoor temperature and humidity, with a temperature control range of:20~℃ one25~℃, temperature variation accuracy: ±1℃, relative humidity control range:45％--75％RHAccuracy of relative humidity variation: ±5%.

electricity hot Tool: Equipped with a three-stage electric heater, it provides stable heating and maintains constant temperature control during winter heating.

plus wet Tool: Adopting an electrode humidifier, with stable control and high precision.

Pipeline accessories: Design of pipelines such as high and low pressure gauges, outlet valves, filters, unloaders, and bypasses.

air filter： Black nylon mesh is used, and the required filtering device can be selected according to customer requirements.

Operating device: Adopting microcomputer control mode. The protective switch devices include high and low pressure switches, water flow control switches, and reverse prevention switches(scroll)Wind pressure sensing switch, overcurrent protection switch, and non fuse switch.

thermal insulation material： adopt7／8 PEInsulation and noise reduction function.

Painting color: Adopting powder coating, with ivory white or snowflake orchid as the main color.

• produce product special point say bright

• Precise control

Adopting a microcomputer control system to directly control various precise temperature and humidity conditions required indoors

• High efficiency characteristics

The compressor adopts a high-efficiency fully enclosed compressor, and the evaporator adoptsVType of coil.

• Low noise characteristics

Adopting low-noise direct coupled centrifugal fans and compressors, with high efficiency and low noise.

• Easy to operate

Temperature and humidity are displayed simultaneously on the dashboard. Various abnormal conditions can be displayed by indicator lights or microcomputer screens, allowing for real-time monitoring of whether the current indoor temperature and humidity conditions are in ideal conditions.

• 安全性高

High density warning device. Monitoring and protection devices such as high temperature warning, high temperature warning, dirty filter screen warning, system high and low pressure tripping warning, fire warning, reverse warning, etc.

• Diverse forms

Standard models include:

1. Air cooled upward blowing constant temperature and humidity unit
2. Air cooled down blowing constant temperature and humidity unit
3. Water cooled upward blowing constant temperature and humidity unit
4. Water cooled down blowing constant temperature and humidity unit

On this basis, existing units can be modified and non-standard models can be designed according to customer requirements.