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Antifreezing-agent multi-path large-temperature-rise heat-extracting air-exhausting vapor-source cascading heat pump

A multi-process, antifreeze technology, applied in the direction of fluid circulation arrangement, damage protection, lighting and heating equipment, etc., can solve the problem of difficult to realize the defrosting of the reheating coil in winter, increase the power consumption of circulating water pump and antifreeze pump, common Single-stage heat pump cycle does not consider other issues

Pending Publication Date: 2018-10-26
侴雨宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (2) Buildings that produce highly toxic substances and germs and emit radioactivity cannot use the return air due to serious pollution, so they have to use DC air conditioners, so they lose huge amounts of heat with the huge exhaust air volume;
[0008] (1) The evaporator of the ordinary single-stage heat pump cycle can only provide a large flow rate and small temperature difference antifreeze cycle, so it is difficult to realize the efficient and low-cost optimized design of the heat recovery coil in the exhaust air heat recovery box, and it is difficult to realize its three-stage winter Cooling sensible heat, latent heat of condensation and latent heat of frosting of recycled exhaust air
[0009] (2) The condenser of the ordinary single-stage heat pump cycle can only provide water circulation with large flow rate and small temperature difference, so it is difficult to realize the high-efficiency and low-cost optimization design of the fresh air coil in the fresh air unit, and it is difficult to realize its large temperature rise in winter and equal humidity content heating fresh air
[0010] (3) The heat recovery coil and fresh air coil design of the ordinary single-stage heat pump cycle form a large flow rate and small temperature rise / fall heat exchange, which not only increases the exhaust air heat recovery box, fresh air unit, circulating water pump, antifreeze pump, and circulation Investment in pipelines and their various control valves, and increased operating power consumption of circulating water pumps and antifreeze pumps
[0011] (4) Ordinary single-stage heat pump cycle is difficult to defrost the regenerative coil in winter
[0012] (5) Ordinary single-stage heat pump cycle is difficult to greatly reduce the relative humidity of fresh air, so it is difficult to fully absorb water vapor indoors, so as to provide free water vapor latent heat energy for exhaust air recovery
[0013] (6) Ordinary single-stage heat pump cycle does not consider how to effectively use solar energy

Method used

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  • Antifreezing-agent multi-path large-temperature-rise heat-extracting air-exhausting vapor-source cascading heat pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] The antifreeze proposed by the present invention has multiple processes and large temperature rise to obtain heat and exhaust air and water vapor source cascade heat pump. figure 1 As shown, the specific description is as follows: 4 sets of cascade heat pumps operate in parallel, and the antifreeze side of the high-temperature heat source side heat exchanger 4-1 of each set of cascade heat pumps and the antifreeze side of the low-temperature heat source side heat exchanger 4-2 are connected in series. The circulating water sides of the low-temperature use-side heat exchanger 2-2 and the high-temperature use-side heat exchanger 2-1 of the cascade heat pump are connected in series, and the heat of the circulating water side drives the reverse 3-flow fresh air coil 16 of 8 fresh air units 18 connected in parallel , 200 fan coils 20, 1 hot water heater 22, 10 defrosting coils 7 and ice melting coils 9 of the exhaust air regenerator 11, and the antifreeze side cooling capacit...

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PUM

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Abstract

The invention relates to an antifreezing-agent multi-path large-temperature-rise heat-extracting air-exhausting vapor-source cascading heat pump. Cascading heat pump condensers are connected seriallyso as to run, large-temperature-rise circulating water is heated in a cascading way, and large-temperature-rise fresh air is heated in a multi-path fresh air coil pipe, so that the relative humidity is reduced, indoor moisture is absorbed, and an air-exhausting vapor heat source is formed; and evaporators are connected serially so as to run, a large-temperature-drop antifreezing agent is cooled ina cascading way, and air-exhausting and temperature-dropping sensible heat, condensation latent heat and frosting latent heat are recovered tertiarily in a multi-path heat returning coil pipe. Small-flow circulation and large-temperature-rise heat exchange are carried out on two sides of the heat pump, so that the investment and the electricity consumption of a heat pump unit, various functionalterminals, a circulating pump, a pipeline and a valve are reduced. Rolling defrosting is realized through the minimum heating capacity.

Description

(1) Technical field [0001] The invention relates to three-stage recycling of the cooling capacity of the cascade heat pump cycle to recover the cooling sensible heat, latent heat of condensation and latent heat of frosting in public buildings, bathing centers, drying workshops, and various mines. Switching, cascade heating, fresh air, return air, hot water and other multi-purpose antifreeze multi-process, large temperature rise, heat extraction, exhaust air, water vapor source cascade heat pump. (2) Background technology [0002] (1) Buildings consume half of the world's electricity, air conditioning and heating consume half of the building's electricity, air conditioning and heating in the United States and Japan consume 1 / 3 of their total electricity, and Sweden even consumes 45% of their total electricity; [0003] (2) Buildings that produce highly toxic substances and germs and emit radioactivity cannot use the return air due to serious pollution, so they have to use DC ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B5/04F25B6/04F25B13/00F25B41/04F25B47/02F25B41/20
CPCF25B5/04F25B6/04F25B13/00F25B47/02F25B2347/021F25B2313/02741F25B41/20
Inventor 侴雨宏魏蔚其他发明人请求不公开姓名
Owner 侴雨宏
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