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Integral air-conditioning system with solar assisted air source inter-critical carbon dioxide heat pump

A technology of carbon dioxide and auxiliary air, which is applied in the direction of heating and cooling combination, refrigeration and liquefaction, gas circulation refrigerator, etc. It can solve the problems of low equipment utilization rate and increased purchase cost, and achieve the effect of compact equipment and energy saving

Active Publication Date: 2007-07-18
TSINGHUA UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

In the prior art, the air-conditioning system and the domestic hot water system are generally separated for small households, and the air-conditioning system is generally only used in summer and winter, which results in a low utilization rate of the equipment and increases the purchase cost

Method used

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  • Integral air-conditioning system with solar assisted air source inter-critical carbon dioxide heat pump

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Embodiment Construction

[0014] The invention provides a solar-assisted air-source transcritical carbon dioxide heat pump comprehensive air-conditioning system, which is a comprehensive air-conditioning system utilizing solar-air-source heat pumps (refrigerators) composed of a solar heat collection system and an air-conditioning system. Including carbon dioxide heat pump (refrigeration) system, solar heat collection system, indoor heat exchange system and outdoor heat exchange system in four parts (as shown in Figure 1).

[0015] Under different climatic conditions, this system can achieve three functions of heating water, heating and cooling through the coordination of solar energy and heat pump (refrigerator). In general, this system has 5 working modes, which are: (1) Hot water working condition; (2) Heating working condition; (3) Heating + hot water T condition; (4) Cooling working condition; (5) Cooling + hot water working condition. The following will be introduced in conjunction with Figure 1, ...

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PUM

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Abstract

The invention discloses a solar-aided, air-source, trans-critical CO2 heat pump integrated air-conditioning system, belonging to the field of solar energy utilization and air conditioning technique, comprising CO2 heat pump (refrigerating) system, solar heat collecting system, indoor heat exchange system and outdoor heat exchange system, interconnected through three-way and four-way valves according system operation path. And for different weather conditions in the four seasons, it can adopt the five operating modes of heating, refrigeration, hot water, heating + hot water, and refrigeration + hot water, implementing hot water, cold and heat supply; besides, by adopting CO2 as heat pump (refrigeration) working medium, it has advantages of high efficiency, saving energy and environmental protection, compactness, and low operation cost.

Description

technical field [0001] The invention belongs to the technical field of solar energy utilization and air conditioning, and in particular relates to a solar energy assisted air source transcritical carbon dioxide heat pump comprehensive air conditioning system. Specifically, it is a comprehensive utilization of solar energy-air source transcritical carbon dioxide heat pump hot water and air conditioning system that combines solar heat collection system and air source transcritical carbon dioxide cycle system, and has a comprehensive system of heating, cooling and hot water triple supply. Background technique [0002] As a natural substance, carbon dioxide is an ideal refrigerant. Its advantages are non-toxic, non-flammable, zero ODP value, low greenhouse effect, low price, no need for recycling, and no unforeseen negative effects on the environment. In fact, from 1866 to the 1930s, carbon dioxide refrigeration devices using subcritical cycles were widely used, but due to low e...

Claims

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Application Information

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IPC IPC(8): F25B29/00F25B9/00F25B27/00
CPCF25B9/008F25B2309/061
Inventor 姜培学孙兆虎王国梁
Owner TSINGHUA UNIV
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