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Sectional type large-temperature-difference water source heat pump unit

A water source heat pump unit and large temperature difference technology, applied in heat pumps, refrigerators, refrigeration components, etc., can solve the problems of inconvenience and difficulty in realizing large temperature difference and small flow rate of water source water, and achieve small temperature fluctuations, saving heat source water consumption, heat Inert big effect

Pending Publication Date: 2021-11-19
西安中亚科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of existing heat pump units are that refrigerants with different properties cannot be selected according to different working temperature ranges, and a set of heat pump refrigerant circulation system is used, which is not convenient for high temperature working conditions, medium temperature working conditions and low temperature working conditions. It is not easy to achieve the overall large temperature difference and small flow of water source water

Method used

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  • Sectional type large-temperature-difference water source heat pump unit
  • Sectional type large-temperature-difference water source heat pump unit

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Experimental program
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Effect test

Embodiment 1

[0031] like Figure 1-2 As shown, the present invention is a segmented large temperature difference water source heat pump unit, including a refrigerant cycle, a cooling water cycle and a chilled water cycle;

[0032] The refrigerant cycle includes a low-temperature refrigerant cycle mechanism, a medium-temperature refrigerant cycle mechanism, and a high-temperature refrigerant cycle mechanism;

[0033] The cooling water cycle includes a low-temperature cooling water cycle mechanism, a medium-temperature cooling water cycle mechanism, and a high-temperature cooling water cycle mechanism;

[0034] The chilled water circulation includes a low-temperature chilled water circulation mechanism, a medium-temperature chilled water circulation mechanism, and a high-temperature chilled water circulation mechanism.

[0035] Among them, the low-temperature refrigerant circulation mechanism includes a low-temperature compressor 2, a low-temperature condenser 3, a low-temperature expansion...

Embodiment 2

[0037] Among them, the low-temperature cooling water circulation, the medium-temperature cooling water circulation, and the high-temperature cooling water circulation are connected in series. The circulation sequence of the low-temperature cooling water circulation mechanism, the medium-temperature cooling water circulation mechanism, and the high-temperature cooling water circulation mechanism is cooling water inlet 4 → low-temperature condenser 3 → medium-temperature condensation Condenser → High temperature condenser 7 → Cooling water outlet 9 → Heat dissipation at the end of the user → Cooling water inlet 4, Condenser isolator 6 is used for the series connection between the high temperature condenser 7, medium temperature condenser and low temperature condenser 3 in the cooling water cycle to isolate The refrigerants in the low-temperature refrigerant cycle, medium-temperature refrigerant cycle, and high-temperature refrigerant cycle make the refrigerant cycles operate indep...

Embodiment 3

[0039] Among them, the low-temperature chilled water circulation mechanism, the medium-temperature chilled water circulation mechanism, and the high-temperature chilled water circulation mechanism are connected in series. The circulation sequence of the low-temperature chilled water circulation mechanism, the medium-temperature chilled water circulation mechanism, and the high-temperature chilled water circulation mechanism is chilled water inlet 11 → high-temperature evaporator 12 →medium temperature evaporator→low temperature evaporator→chilled water outlet 1→heat source heat absorption→chilled water inlet 11, evaporator isolator 13 is used at the series connection between high temperature evaporator 12, medium temperature evaporator and low temperature evaporator in the chilled water cycle, Isolate the refrigerant of the low-temperature refrigerant circulation mechanism, the medium-temperature refrigerant circulation mechanism, and the high-temperature refrigerant circulation...

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Abstract

The invention discloses a sectional type large-temperature-difference water source heat pump unit, comprising refrigerant circulation, cooling water circulation and chilled water circulation. The refrigerant circulation comprises a low-temperature refrigerant circulation mechanism, a medium-temperature refrigerant circulation mechanism and a high-temperature refrigerant circulation mechanism; the cooling water circulation comprises a low-temperature cooling water circulation mechanism, a medium-temperature cooling water circulation mechanism and a high-temperature cooling water circulation mechanism; and the chilled water circulation comprises a low-temperature chilled water circulation mechanism, a medium-temperature chilled water circulation mechanism and a high-temperature chilled water circulation mechanism. The device uses two or more sets of independent heat pump refrigerant circulation systems; meanwhile, the chilled water circulation and the cooling water circulation are connected in series, and the structure can ingeniously decompose the large temperature difference into a high-temperature working condition, a medium-temperature working condition and a low-temperature working condition for segmented treatment, so that the overall large temperature difference and small flow of source water are achieved.

Description

technical field [0001] The invention relates to the field of renewable energy, in particular to a segmented large temperature difference water source heat pump unit. Background technique [0002] The heat pump unit is a cycle system composed of compressor-condenser-throttle-evaporator-compressor and other devices. The refrigerant circulates in the system under the action of the compressor. It completes the process of increasing the pressure and temperature of the gaseous state in the compressor (the temperature is as high as 100 ° C), and it enters the condenser to exchange heat with water, and the refrigerant is cooled and converted into a high-pressure liquid state at about 1.5Mpa. When it runs to the throttling After the evaporator, the pressure suddenly drops to about 0.4Mpa. When it runs into the evaporator, the liquid state quickly absorbs heat and evaporates again into a gaseous state. At the same time, the temperature drops to about 2°C. At this time, the heat sourc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/02F25B30/06F25B41/31F25B41/20
CPCF25B30/02F25B30/06F25B41/31F25B41/20
Inventor 姜鉴明姜鹤
Owner 西安中亚科技发展有限公司