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Air conditioning system and control method thereof

A technology of air conditioning system and control method, which is applied in the direction of air conditioning system, heating and ventilation control system, heating and ventilation safety system, etc., and can solve problems such as safety hazards, thermal pollution, condensation heat waste, etc., so as to avoid safety hazards and reduce waste , Improve the effect of cooling effect

Active Publication Date: 2016-03-30
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the air-conditioning system in the prior art, such as the waste of condensation heat and thermal pollution, and the potential safety hazards of using electric heaters to achieve temperature and humidity control, thereby providing an air-conditioning system and its control method

Method used

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  • Air conditioning system and control method thereof
  • Air conditioning system and control method thereof

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Embodiment approach 1

[0040] Such as figure 1 As shown, the air conditioning system of the present invention includes a compressor 1, a temperature sensing package 2, a three-way valve 3, a condensing fan 4, an outdoor heat exchanger 5, a first solenoid valve 6, a liquid reservoir 7, an electronic expansion valve 8, Temperature sensing package 9, third electromagnetic valve 10, centrifugal fan 11, humidifier nozzle 12, indoor second heat exchanger 13, indoor first heat exchanger 14, second electromagnetic valve 15, temperature sensing package 16, vapor-liquid The separator 17, wherein the first solenoid valve 6, the third solenoid valve 10 and the second solenoid valve 15 are normally closed non-flow solenoid valves. When the air conditioner unit is running, if the return air temperature of the air conditioner unit is greater than or equal to the upper temperature limit allowed by the air-conditioned room, the bypass port of the three-way valve 3 is closed, the first solenoid valve 6 is closed, the...

Embodiment approach

[0041] In this embodiment, the condensing heat of the air-conditioning unit is used to realize the reheating function. The air-conditioning unit has the functions of cooling, dehumidification, reheating, and humidification, so that the air-conditioning system can control the temperature and humidity of the computer room environment more accurately.

Embodiment approach 2

[0043] Such as figure 2 As shown, Embodiment 2 cancels the humidification device and liquid storage on the basis of Embodiment 1, and can be used in places that do not require too high humidity, saving the production and operation costs of the unit. The temperature control method is similar to Embodiment 1. .

[0044] The present invention provides a control method of an air-conditioning system, which controls and adjusts the above-mentioned air-conditioning system to realize the functions of cooling, reheating and dehumidification or humidification. Through a reasonable control method, the air-conditioning refrigerant circulation system can realize the functions of cooling, dehumidification and reheating on the basis of energy saving and safe operation, and more precise control and adjustment of the temperature and humidity of the computer room environment. Effective use of condensation heat instead of electric heating reduces the waste of heat resources and possible therma...

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Abstract

The invention provides an air conditioning system which comprises an outdoor heat exchanger (5), an indoor first heat exchanger (14) and indoor second heat exchangers (13), wherein the indoor second heat exchangers (13) are arranged at the two ends of the outdoor heat exchanger (5) through first parallel branches in parallel, and meanwhile the indoor second heat exchangers (13) are also arranged at the two ends of the indoor first heat exchanger (14) through second parallel branches in parallel. The air conditioning system further comprises a first control valve system for controlling the first parallel branches, and a second control valve system for controlling the second parallel branches is arranged on the second parallel branches. According to the air conditioning system, the heat exchangers are reasonably arranged, and heat of condensation is utilized to replace electrical heating, so that the waste of thermal resources and the possible thermal pollution are reduced, the cost of electrical heating is reduced, and the potential safety hazard of possible dry heating caused by electrical heating operation is avoided; meanwhile, the heat exchange area is increased, and the sensible heat ratio of the air conditioning system during operation is increased. The invention further relates to a control method for the air conditioning system.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to an air conditioning system and a control method thereof. Background technique [0002] In order to achieve precise control of temperature and humidity in traditional air-conditioning systems used in computer rooms and similar high-sensible heat environments, indoor units are generally equipped with electric heaters of a certain power to achieve heating functions. It causes a waste of thermal resources, and the discharge of a large amount of condensation heat may also cause thermal pollution. Some units use electric heating. If the protection measures are not in place, there will be safety hazards. [0003] The air conditioning units used in the computer room environment require a high sensible heat ratio. At present, some units use the method of increasing the air volume to achieve it. The increase of the operating power of the whole machine and the decrease...

Claims

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Application Information

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IPC IPC(8): F24F1/00F24F13/30F24F11/02
CPCF24F1/0003F24F5/001F24F11/83F24F11/84F24F11/89F24F13/30
Inventor 赵鹏
Owner GREE ELECTRIC APPLIANCES INC
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