Composite multi-source central air-conditioning machine set using geothermal energy

A technology for central air conditioners and units, applied in air conditioning systems, refrigerators, compressors, etc., can solve the problems of low heat exchange efficiency and limited cooling and heat sources, and achieve the effect of high heat exchange efficiency

Inactive Publication Date: 2009-04-29
巢民强
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a composite multi-source ground energy central air-conditioning unit, which aims to solve the problems in the prior art tha

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  • Composite multi-source central air-conditioning machine set using geothermal energy
  • Composite multi-source central air-conditioning machine set using geothermal energy

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Embodiment Construction

[0010] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0011] Please refer to figure 1 , which is a preferred embodiment of the present invention, the composite multi-source ground energy central air-conditioning unit includes a compressor 1, a heat recovery heat exchanger 20, a reversing four-way valve 30, a primary heat exchanger 40, and a secondary heat exchanger 50. First expansion valve 70, first dry filter 71, first check valve, liquid reservoir 9, second expansion valve 80, second dry filter 81, second check valve 82, evaporator 60 and gas Liquid separator 10;

[0012] Please refer to figure 1 , the compressor 1 is sequentially connected to t...

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Abstract

The invention is applicable to fields of air conditioners and provides a combined multi-source earth-energy central air-conditioning unit. The central air-conditioning unit comprises a primary heat exchanger, a secondary heat exchanger and a heat recovery system which are connected with other parts of a central air conditioner through pipes, wherein the primary heat exchanger, the secondary heat exchanger and the heat recovery system are serially connected through pipes. With the technical proposal, the central air-conditioning unit can use earth source and air source as cold and heat sources and uses the primary heat exchanger and the secondary heat exchanger to achieve a double cooling effect in cooling seasons and uses only the secondary heat exchanger in warming seasons with higher heat exchange efficiency, thereby overcoming the problem of limitation in the use of cold and heat sources and low heat exchange efficiency of earth source heat and air source heat pumps in the prior art. The central air-conditioning unit is also provided with a heat-recovery heat exchanger, so as to enable a user to make hot water for daily use during use of the air conditioner and bring great convenience in use of hot water in daily life.

Description

technical field [0001] The invention belongs to the field of air-conditioning equipment, in particular to the field of a composite multi-source ground energy central air-conditioning unit, and more specifically relates to an air-conditioning unit utilizing geothermal energy, air energy or other natural energy sources. Background technique [0002] At present, water-cooled chillers and air-cooled chillers are usually used in refrigeration equipment. Among them, the ground source heat pump water-cooled cold water air-conditioning system that uses underground shallow geothermal resources as a cold and heat source has the advantages of significant energy saving, comfort and environmental protection, high energy efficiency ratio, and zero air pollution. It has been widely used in Beijing, Shenyang, Shanghai, Chongqing and other cities. The national and local governments have set up special funds to reward the application of ground source heat pump central air conditioning. Howev...

Claims

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Application Information

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IPC IPC(8): F24F3/06F24F12/00F25B13/00F25B30/06
CPCY02B30/123Y02B30/52
Inventor 巢民强
Owner 巢民强
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