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Solution heat pump system based on freezing regeneration and heat recovery thereof

A solution heat pump and heat recovery technology, used in heat recovery systems, heat pumps, refrigeration and liquefaction, etc., can solve problems such as increased energy consumption, reduce investment and land occupation, reduce solution usage, and achieve high efficiency.

Active Publication Date: 2015-04-29
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, whether it is reverse osmosis or electrodialysis, the required energy consumption increases rapidly with the increase of solution concentration

Method used

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  • Solution heat pump system based on freezing regeneration and heat recovery thereof
  • Solution heat pump system based on freezing regeneration and heat recovery thereof
  • Solution heat pump system based on freezing regeneration and heat recovery thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] image 3 It is a structural principle diagram of the first embodiment of a solution heat pump system based on freezing regeneration and heat recovery provided by the present invention. It includes a user-side unit 1, an energy tower unit 2 and a refrigeration solution regeneration unit 3. The user-side unit 1 includes a working fluid outlet 11, a working fluid inlet 12, a second compressor 13, a four-way valve 14, and a user-side Heat exchanger 15 and second throttle valve 16; described energy tower unit 2 comprises working medium outlet 21, working medium inlet 22, solution outlet 23, solution inlet 24, solenoid valve 27, spray heat exchanger 28, Second solution pump 29, solenoid valve 210; described refrigeration solution regeneration unit 3 includes working medium outlet 31, working medium inlet 32, solution outlet 33, solution inlet 34, first compressor 35, first throttle valve 37 , Freezing regeneration ice tank 39, first solution pump 314, electromagnetic valve 3...

Embodiment 2

[0044] Figure 4 It is a structural principle diagram of the second embodiment of a solution heat pump system based on freezing regeneration and heat recovery provided by the present invention. It includes a user-side unit 1, an energy tower unit 2 and a refrigeration solution regeneration unit 3. The user-side unit 1 includes a working fluid outlet 11, a working fluid inlet 12, a second compressor 13, a four-way valve 14, and a user-side Heat exchanger 15 and second throttle valve 16; described energy tower unit 2 includes working fluid outlet 21, working fluid inlet 22, solution outlet 23, solution inlet 24, third solenoid valve 27, spray heat exchanger 28. The second solution pump 29, the fourth solenoid valve 210; the refrigeration solution regeneration unit 3 includes a working fluid outlet 31, a working fluid inlet 32, a solution outlet 33, a solution inlet 34, a first compressor 35, a first Throttle valve 37, frozen regenerated ice tank 39, first solution pump 314, fir...

Embodiment 3

[0047] Figure 5 It is a structural principle diagram of the third embodiment of a solution heat pump system based on freezing regeneration and heat recovery provided by the present invention. It includes a user-side unit 1, an energy tower unit 2 and a refrigeration solution regeneration unit 3. The user-side unit 1 includes a working fluid outlet 11, a working fluid inlet 12, a second compressor 13, a four-way valve 14, and a user-side Heat exchanger 15, second throttle valve 16, brine heat exchanger 17 and brine solution pump 18; the energy tower unit 2 includes a working medium outlet 21, a working medium inlet 22, a solution outlet 23, a solution Inlet 24, the third solenoid valve 27, spray heat exchanger 28, the second solution pump 29, the fourth solenoid valve 210; the freezing method solution regeneration unit 3 includes working medium outlet 31, working medium inlet 32, solution Outlet 33, solution inlet 34, first compressor 35, first throttle valve 37, frozen recyc...

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Abstract

A solution heat pump system based on freezing regeneration and heat recovery thereof belongs to the field of heat pump air conditioning devices. The system comprises a user side unit, an energy tower unit and a freezing method solution regeneration unit, wherein the freezing method solution regeneration unit mainly includes a refrigeration cycle formed by connecting a freezing regeneration ice tank, a compressor, a heat recovery condenser and a throttling valve through a refrigerant pipeline. A dilute solution to be regenerated in the energy tower unit is delivered into the freezing regeneration ice tank of the freezing method solution regeneration unit to enable a part of water in the solution to be frozen and precipitated and separated through an ice-solution separation device to obtain the a dense solution to further achieve solution regeneration. Meanwhile, condensed heat generated in the regeneration refrigeration cycle process is recovered through a heat recovery condenser of the freezing method solution regeneration unit to improve the operation efficiency of the whole system. The system has the advantages of being small in solution quantity, small in investment and occupation area, high in regeneration efficiency, high in heat pump operation stability and efficiency and the like.

Description

technical field [0001] A solution heat pump system based on freezing regeneration and heat recovery belongs to the field of heat pump air conditioning equipment. This system is to send the dilute solution that needs to be regenerated in the energy tower unit into the freezing regeneration ice tank of the freezing solution regeneration unit, so that a part of the water in the solution is frozen and precipitated, and separated by the ice solution separation device, so as to obtain a concentrated solution. solution, and at the same time recover the condensation heat generated by the refrigeration solution regeneration unit. Background technique [0002] According to the data and analysis provided in the "China Building Energy Conservation Annual Development Research Report 2007", building energy consumption accounts for 20% to 30% of the total commodity energy consumption in my country, while the energy consumed by building materials and construction processes generally only ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/06F25B41/00F25B41/40
CPCF25B30/06F25B41/00Y02B30/52
Inventor 王宝龙宋鹏远石文星李先庭李宁
Owner TSINGHUA UNIV
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