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Multifunctional CO2 air conditioner heat pump

A heat pump device, multi-functional technology, applied in heat pump, energy-saving heating/cooling, heat recovery system, etc.

Inactive Publication Date: 2010-12-08
刘雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The two invention patents with application numbers 200710162570.0 and 200710305376.3 respectively involve a dual-purpose heat pump device for winter and summer. When this device uses CO2 When sub> is used as a refrigerant, since there is neither a regenerator nor an expander in the device, it can neither form a heat recovery cycle nor recover the expansion work during the cycle, so the operating efficiency of the entire device is low

Method used

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  • Multifunctional CO2 air conditioner heat pump
  • Multifunctional CO2 air conditioner heat pump
  • Multifunctional CO2 air conditioner heat pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as figure 1 As shown, the whole device includes the following equipment: compressor 1, heat source side heat exchanger 2, user side heat exchanger 3, second heat exchanger 6, first throttling mechanism 4, second throttling mechanism 5, first throttling mechanism Four-way valve 100, second four-way valve 70, first flow control valve 7-1, second flow control valve 7-2, regenerator 9, first one-way valve 51, second one-way valve 52, first Three one-way valves 95, fourth one-way valves 96, fifth one-way valves 97, sixth one-way valves 98, first three-way valves 12 and second three-way valves 13.

[0053] The first four-way valve 100 is provided with four connection nodes: 101, 102, 103, 104, and the second four-way valve 70 is also provided with four connection nodes 71, 72, 73, 74; channels are connected.

[0054] The heat source side heat exchanger 2 and the user side heat exchanger 3 are refrigerant-air heat exchangers. The second heat exchanger 6 is a refrigera...

Embodiment 2

[0095] figure 2 As shown, it has two differences compared with Embodiment 1: 1) replace the third one-way valve 95 with the eighth flow direction control valve 7-8; 2) the position of the second three-way valve 13 in the system The positions are different. In this embodiment, the normally open node A3 of the second three-way valve 13 is connected to the heat source side heat exchanger 2 through the forty-ninth pipeline 49, and one of the two reversing nodes of the second three-way valve 13 is B3 The thirty-first pipeline 31 is connected to the connection node 72 of the second four-way valve 70, and the other reversing node C3 of the second three-way valve 13 is connected to the second heat exchanger 6, the eighth flow direction control valve 7-8 and the second heat exchanger 6. The pipelines between the outlet ports of the four one-way valves 96 are connected. The other equipment and connection methods in the device are the same as those in Embodiment 1.

[0096] Embodiment...

Embodiment 3

[0127] image 3 As shown, compared with Embodiment 1, the difference is that in this embodiment, an expander 11 is used to replace the regenerator 9, and the expander 11 is connected to the compressor 1 through a connecting mechanism, and the input end of the compressor 1 is passed through the first Sixty-three pipeline 63 is directly connected to the connection node 103 of the first four-way valve 100. Other equipment and connection methods in the device are the same as those in Embodiment 1. Embodiment 3 can also achieve the functions described in Embodiment 1, but during operation, the expander 11 can recover the expansion work produced by the high-temperature and high-pressure refrigerant during the temperature and pressure drop process, reducing the power consumption of the compressor 1, Improve the operating efficiency of the entire device.

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Abstract

The invention discloses a multifunctional CO2 air conditioner heat pump device which consists of a compressor, a heat source side heat exchanger, a user side heat exchanger, a second heat exchanger, a first throttling mechanism, a second throttling mechanism, a first four-way valve, a second four-way valve, a first flow direction control valve, a second flow direction control valve, a heat regenerator, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a fifth one-way valve, a sixth one-way valve, a first three-way valve, a second three-way valve, and the like. The air conditioner heat pump device can run with high efficiency in high and low temperature operating environments, realize a plurality of operating conditions of producing daily life hot water and carrying out refrigeration and heating, and also defrost through waste heat. The air conditioner heat pump device which has a simple structure and reliable work is particularly suitable for civil medium and small scale occasions needing daily life hot water.

Description

technical field [0001] The present invention relates to a multifunctional CO 2 An air-conditioning heat pump device belongs to the technical field of air-conditioning and refrigeration. Background technique [0002] The two invention patents with application numbers 200710162570.0 and 200710305376.3 respectively involve a dual-purpose heat pump device for winter and summer. When this device uses CO 2 When used as a refrigerant, since there is neither a regenerator nor an expander in the device, it can neither form a heat recovery cycle nor recover expansion work during the cycle, so the operating efficiency of the entire device is low. Contents of the invention [0003] The purpose of the present invention is to provide a multifunctional CO2 that can realize various operating conditions and can operate efficiently in high and low temperature working environments. 2 Air conditioning heat pump unit. [0004] In order to overcome the problem that above-mentioned technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B30/02
CPCY02B30/52Y02B30/123
Inventor 刘雄
Owner 刘雄
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