Precisive module regulating method of air conditioner

A precision air-conditioning and control method technology, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as difficult temperature and humidity control, energy waste, etc., to reduce energy consumption and improve control The effect of precision

Inactive Publication Date: 2008-12-24
广东力优环境系统股份有限公司
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  • Abstract
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Problems solved by technology

This control method has the following problems: when there is high humidity and low temperature, the phenomenon of compressor cooling and dehumidification and electric heater heating will occur; when high temperature and low humidity occur, compressor cooling and dehumidification and humidifier humidification will occur again, causing In addition, because this method separates the temperature and humidity, it is difficult to achieve high-precision temperature and humidity control

Method used

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  • Precisive module regulating method of air conditioner
  • Precisive module regulating method of air conditioner
  • Precisive module regulating method of air conditioner

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Embodiment Construction

[0016] The enthalpy control operation formula of the inventive method is as follows:

[0017]

[0018] In the above formula, e(t) is the input enthalpy signal, Kp is the proportional operation, Ki∫ is the integral operation, Kd d / dt differential operation, K(1+1 / Ti S+TdS) is the PID transfer function.

[0019] The structure of the modular precision air conditioning system is as follows: figure 2 As shown, compressor 1, evaporator 2, heating PTC 3, humidifier 4, drying filter 5, fan 6, expansion valve 7, condenser 8, filter 9; users can choose different cooling capacity and control according to actual needs High-precision modular precision air-conditioning units can be matched at will. The modular precision air conditioning system adopts a programmed digital direct controller and an enthalpy value control algorithm. Due to the fast operation speed of the microcomputer, a loop control can be completed in a short time interval, and high-precision control can be realized. The...

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Abstract

An accurate air-conditioner control module comprises a programmable digital direct controller, compressor refrigerating circle, electric heating PTC, electrode humidifier. Set a sole value in the programmable digital direct controller corresponding to a temperature, humidity and controllable accuracy. The temperature and humidity value from the sensor will be compared to the set value in the digital direct controller to calculate and output a PID. When the difference is small, the air-conditioner system will start heating and de-humidifying and low grade cooling. When the difference is big, the compressor starting times and numbers will be decided by the output value from the digital director controller.

Description

technical field [0001] The invention relates to the control technology of an air-conditioning system, in particular to a module precision air-conditioning control method. technical background [0002] At present, in the field of commercial air conditioners, the cooling capacity of precision air conditioning units with built-in refrigerant systems is generally between 20KW and 250KW, and the heating capacity is between 10KW and 120KW. One or more small customized cooling compressors, evaporators, condensers, throttling devices, heaters, humidifiers, air supply systems and air filters are installed in a compact precision air conditioner. In terms of control, temperature and humidity are usually controlled separately, that is, low temperature, heating; high temperature, cooling; low humidity, humidification; high humidity, cooling and dehumidification. This control method has the following problems: when there is high humidity and low temperature, the phenomenon of compressor ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/02
Inventor 方沛明刘怡
Owner 广东力优环境系统股份有限公司
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