Solar-assisted air source trans-critical carbon dioxide multifunctional heat pump system

A technology of auxiliary air and heat pump system, which is applied in refrigeration and liquefaction, heating and refrigeration combination, lighting and heating equipment, etc., can solve the problems of producing domestic hot water, etc. Effect

Inactive Publication Date: 2012-08-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the direct expansion system, the refrigerant, as the solar heat collection medium, directly absorbs heat and evaporates in the solar heat collector / evaporator, and then releases the condensation heat to the heating object through the heat pump cycle, which can improve the heat collection efficiency, but it cannot be used like the intermediate expansion system. The same system, direct use of solar radiant heat to make domestic hot water

Method used

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  • Solar-assisted air source trans-critical carbon dioxide multifunctional heat pump system
  • Solar-assisted air source trans-critical carbon dioxide multifunctional heat pump system
  • Solar-assisted air source trans-critical carbon dioxide multifunctional heat pump system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, an inter-expansion solar-assisted air source transcritical carbon dioxide multifunctional heat pump system includes a compressor 1, a first four-way reversing valve 2, a second four-way reversing valve 3, an indoor heat exchanger 4, and an outdoor heat exchanger Heater 5, regenerator 8, expansion tank 11, dry filter 12, domestic water tank heat exchanger 20 with condensing coil and inner cavity, solar heat collection system and throttling conversion system.

[0031] Wherein, the four ports of the first four-way reversing valve 2 are respectively: the first port 2a, the second port 2b, the third port 2c and the fourth port 2d; the four ports of the second four-way reversing valve 3 are respectively: These are: the first port 3a, the second port 3b, the third port 3c and the fourth port 3d. Wherein, the third port 8c of the regenerator 8 communicates with the fourth port 8d, and the first port 8a of the regenerator 8 communicates with the secon...

Embodiment 2

[0070] Such as figure 2 As shown, a direct expansion solar-assisted air source transcritical carbon dioxide multifunctional heat pump system includes a compressor 1, a first four-way reversing valve 2, a second four-way heat exchanger 3, an indoor heat exchanger 4, and an outdoor Heat exchanger 5, heat regenerator 8, expansion tank 11, dry filter 12, domestic water tank heat exchanger 20 with condensing coil, solar heat collection system and throttling conversion system.

[0071] Wherein, the four ports of the first four-way reversing valve 2 are respectively: the first port 2a, the second port 2b, the third port 2c and the fourth port 2d; the four ports of the second four-way reversing valve 3 are respectively: These are: the first port 3a, the second port 3b, the third port 3c and the fourth port 3d. Wherein, the third port 8c of the regenerator 8 communicates with the fourth port 8d, and the first port 8a of the regenerator 8 communicates with the second port 8b. The con...

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Abstract

The invention discloses a solar-assisted air source trans-critical carbon dioxide multifunctional heat pump system, which comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a domestic water tank heat exchanger, a heat regenerator, a four-way reversing valve, a throttling switching system and a solar heat collecting system, wherein the solar heat collecting system comprises a solar heat collector and a refrigerant-water heat exchanger or a solar heat collector/evaporator. The multifunctional heat pump system integrates a trans-critical carbon dioxide heat pump system with a water heater in a quite simple, economic and reliable manner, solar energy is fully used, and the multifunctional heat pump system is particularly applicable to occasions abundant in solar energy and needing air conditioners and a great deal of high-temperature hot water supply simultaneously. By the aid of the multifunctional heat pump system, energy use ratio and equipment use ratio are increased, and environmental pollution is reduced.

Description

technical field [0001] The invention belongs to the fields of heat pump air conditioners, heat pump water heaters and heat energy utilization, and in particular relates to a solar-assisted air source transcritical carbon dioxide multifunctional heat pump system. Background technique [0002] The solar-assisted heat pump uses the solar heat collection system to supplement solar energy to the evaporator side of the heat pump to increase the evaporation temperature to achieve more efficient heating. The combination of solar heat collection system and air source transcritical carbon dioxide circulation system comprehensively utilizes solar energy-air source transcritical carbon dioxide heat pump hot water and air conditioning system, which can not only realize the cooling and heating functions of heat pump air conditioners, but also recover condensation Heat, providing high-temperature hot water to users. [0003] Carbon dioxide is one of the components of the earth's biosphere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B29/00F25B41/04F25B41/06
Inventor 韩晓红贺伟王勤陈光明刘玉迁梁国峰黎佳荣
Owner ZHEJIANG UNIV
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