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Air conditioning system

An air-conditioning system and interface technology, applied in air-conditioning systems, space heating and ventilation, heating methods, etc., can solve the problems of low operating efficiency of double-cylinder compressors, and achieve the effects of improved capacity, reliable work, and improved energy efficiency

Inactive Publication Date: 2014-08-06
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an air conditioning system to solve the technical problem of low operating efficiency of the double-cylinder compressor

Method used

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no. 1 example

[0031] According to the first embodiment of the present invention: figure 1 This is the system diagram of this embodiment, figure 2 This is the two-cylinder two-stage compression pressure enthalpy diagram of this embodiment, image 3 This is the single-cylinder single-stage compression pressure enthalpy diagram of this embodiment. The system of this embodiment is mainly composed of compressor 110, four-way reversing valve 120, outdoor heat exchanger 130, primary throttling element 140, flash evaporator 150, secondary throttling element 160, indoor heat exchanger 170, and air supplement valve 180 and other components. The primary throttling element 140 and the secondary throttling element 160 include, but are not limited to, capillary tubes, electronic expansion valves, thermal expansion valves, and the like.

[0032] The main refrigeration cycle of this embodiment is: the high-temperature and high-pressure gaseous refrigerant b compressed and discharged by the compressor 110 flo...

Embodiment approach 3

[0049] This embodiment is a simplified way of the second embodiment. The first one-way valve 141, the second one-way valve 161, the third one-way valve 191, the fourth one-way valve 192, and the first-stage throttle element 140 of the second embodiment are eliminated. . In this embodiment, only one-way air supplementation can be used to increase enthalpy, that is, only cooling and heating supplementation can be used, and cooling and heating can not be simultaneously supplemented. In the system schematic diagram, only the indoor heat exchanger 170 and the outdoor heat exchanger 130 can be exchanged for the heating and air supplement mode.

[0050] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

[0051] When the air conditioner is operating under low load, the single cylinder operates at low frequency to stably maintain the room temperature, which is economical and energy-saving; when ...

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Abstract

The invention provides an air conditioning system. The air conditioning system comprises a compressor, a four-way reversing valve, an outdoor heat exchanger, a flash evaporator and an indoor heat exchanger, wherein the compressor, the four-way reversing valve, the outdoor heat exchanger, the flash evaporator and the indoor heat exchanger are sequentially communicated. The first port of the flash evaporator is communicated with the first port of the outdoor heat exchanger, the second port of the flash evaporator is communicated with the gas supplement port of the compressor, and a gas supplement valve is arranged between the second port of the flash evaporator and the gas supplement port of the compressor. The third port of the flash evaporator is communicated with the first port of the indoor heat exchanger. The compressor is provided with a first gas suction port and a second gas suction port. The first gas suction port and the second gas suction port are communicated with the four-way reversing valve, and a gas suction valve is arranged between the first gas suction port and the four-way reversing valve. According to the air conditioning system, the double-cylinder capacity-variable technology and the double-stage compression, gas supplement and enthalpy increase technology are adopted, switching of the single-cylinder work mode and the double-cylinder work mode is achieved through opening and closing of the gas suction valve, and control over the gas supplement amount is achieved through opening and closing of the gas supplement valve. In the process of low-frequency and small-load single-cylinder operation, the energy efficiency is improved. In the process of high-frequency and large-load double-cylinder operation, the ability is improved.

Description

Technical field [0001] The present invention relates to the field of air conditioning, in particular, to an air conditioning system. Background technique [0002] The prior art discloses a two-cylinder variable-capacity compressor air conditioning system, which controls the opening and closing of the small cylinder through the on and off of the three-way reversing valve, so as to realize the switch between double cylinder and single cylinder, thereby changing the compressor capacity. However, the system uses a single-cylinder mode for conventional cooling and heating. Only when the load is high, the small cylinder is turned on, and the maximum capacity can only be increased by about 20%; and there is no advantage over the ordinary compression system at low load. [0003] The prior art also discloses a two-stage compressor air-conditioning system for supplemental air and enthalpy increase. The system adjusts the intermediate pressure through the on and off of the supplementary solen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/00F25B41/04F25B41/06F25B41/20F25B41/30
CPCF24F1/00F25B41/20
Inventor 叶泽波王现林潘保远王耀
Owner GREE ELECTRIC APPLIANCES INC
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