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Ejecting enthalpy-increasing evaporative cooling type air-cooled heat pump unit

An air-cooled heat pump and cooling technology, applied in refrigerators, refrigeration components, compressors, etc., can solve the problems of high energy consumption, large volume and high manufacturing cost of evaporative heat pump units, improve the heat pump circulation environment, reduce The volume of the unit, the effect of reducing the flying water

Active Publication Date: 2021-09-21
HANRUN UNITED HIGH TECH DEV BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This application aims to solve the problems of the existing evaporative cooling and heat pump units, such as high energy consumption, large volume, high manufacturing cost, serious heating attenuation, and water splashing and drifting in the evaporative cooling environment of the unit.

Method used

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  • Ejecting enthalpy-increasing evaporative cooling type air-cooled heat pump unit
  • Ejecting enthalpy-increasing evaporative cooling type air-cooled heat pump unit
  • Ejecting enthalpy-increasing evaporative cooling type air-cooled heat pump unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] refer to Figure 20 , air-cooled pre-evaporative cooling conventional cooling mode:

[0109] Refrigerant circulation system: the first four-way valve Q1oa and bi are connected; the second four-way valve Q2oa and bi are connected; the third four-way valve Q3ib and ao are connected; the fourth four-way valve Q4ob and ai are connected Connected; the fifth four-way valve Q5ib and ao ports are connected; the sixth four-way valve Q6ib and ao are connected; the enthalpy increasing solenoid valve 42 is closed.

[0110] Refrigerant circulation path: The refrigerant flows through the steam injection port of the compressor 11, the first valve port o and the third valve port a of the first four-way valve Q1, the third four-way valve Q3 and the second valve port of the cold and heat source heat exchanger module. Valve port i and fourth valve port b, air source heat exchanger 22, fourth valve port b and first valve port o of fourth four-way valve Q4, first valve port o and first val...

Embodiment 2

[0115] refer to Figure 21 , evaporative cooling ejector cooling mode:

[0116] Refrigerant circulation system: the first four-way valve Q1oa and bi are connected; the second four-way valve Q2oa and bi are connected; the third four-way valve is Q3ia and bo; the fourth four-way valve is Q4ia and bo The fifth four-way valve Q5ob and ai terminals are connected; the sixth four-way valve Q6ia and bo ends are connected; the enthalpy increasing solenoid valve 42 is closed.

[0117] In the high-pressure refrigerant circuit of the refrigerant cycle, the refrigerant flows through the steam injection port of the compressor 11, the first valve port o and the third valve port a of the first four-way valve Q1, and the third four-way port of the cold and heat source heat exchanger module. The second valve port i and the third valve port a of the valve Q3, the evaporative cooling heat exchanger 21, the third valve port a and the second valve port i of the fourth four-way valve Q4, and the se...

Embodiment 3

[0125] refer to Figure 22 , air precooling evaporative cooling enthalpy increasing cooling mode:

[0126] Refrigerant circulation system: the first four-way valve Q1oa and bi are connected; the second four-way valve Q2oa and bi are connected; the third four-way valve Q3ib and ao are connected; the fourth four-way valve Q4ia and bo are connected Connected; the Q5ib and ao ports of the fifth four-way valve are connected; the Q6ib and ao ports of the sixth four-way valve are connected; the enthalpy increasing solenoid valve 42 is opened.

[0127]In the main refrigerant circuit, the refrigerant flows through the steam injection port of the compressor 11, the first valve port o and the third valve port a of the first four-way valve Q1, the third four-way valve Q3 and the third valve port a of the cold and heat source heat exchanger module. The second valve port i and the fourth valve port b, the air source heat exchanger 22, the fourth valve port b and the first valve port o of t...

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Abstract

The invention discloses an ejecting enthalpy-increasing evaporative cooling type air-cooled heat pump unit. The ejecting enthalpy-increasing evaporative cooling type air-cooled heat pump unit comprises a refrigerant pump pushing module, a rectifying module, a cold and heat source heat exchanger module, an ejecting enthalpy-increasing module, an economizer module and a use side module. According to the ejecting enthalpy-increasing evaporative cooling type air-cooled heat pump unit, the ejecting and enthalpy-increasing composite technology is adopted to carry out double recovery on kinetic energy and heat energy in the refrigerant thermodynamic cycle process, so that the heating COP of the unit is improved, and the unit is more energy-saving; the design of single-way and double-way full-coverage bridge type connecting pipelines of an air-cooled heat exchanger and an evaporative cold heat exchanger is adopted, so that the comprehensive efficiency of the unit is improved, the manufacturing cost is reduced, and the economical efficiency of the evaporative cooling type heat pump unit is improved; and a series-parallel connection and series-parallel connection full-coverage connecting structure formed by the connecting pipeline can realize diversified optimal utilization of various existing cold and heat sources in a refrigerating and heating mode, so that the heat pump can efficiently refrigerate and heat. According to the ejecting enthalpy-increasing evaporative cooling type air-cooled heat pump unit, miniaturization, freezing and cooling integration, air cooling and water cooling integration, cold source and heat source diversification, refrigerating and heating high efficiency and installation, operation and maintenance convenience of a large unit can be realized.

Description

technical field [0001] The invention relates to the field of heat exchangers, in particular to an air-cooled heat pump unit of an injection enthalpy increasing evaporative cooling type. Background technique [0002] The existing evaporative cooling and heat pump units use water as the cooling medium for refrigeration, and the use of latent heat of water plus sensible heat exchange can make the refrigerant obtain a lower condensation temperature than water cooling, especially air cooling, so it has higher cooling efficiency; When it is hot, air is used as the heat source, which avoids the problem of low heating efficiency or no heating at all for water-cooled units, including evaporative cooling units. [0003] However, the existing evaporative cooling and heat pump units are co-operated with the cold source heat exchanger, namely the evaporative cooling heat exchanger, and the heat source heat exchanger, namely the air source heat exchanger, which not only causes the existin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B41/20F25B41/31F25B41/40
CPCF25B13/00F25B41/20F25B41/31F25B41/40F25B2313/027F25B2400/13
Inventor 李国斌李一杰耿坤黄粟
Owner HANRUN UNITED HIGH TECH DEV BEIJING CO LTD
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