Multiple closed loop soil-derived water-water heat pump system

A pump system and hydrothermal technology, applied in heat pumps, lighting and heating equipment, refrigeration components, etc., can solve the problems of high return water temperature of underground coupled heat exchangers, reducing system refrigeration capacity and reliability, and reducing refrigeration efficiency, etc. Achieve the effect of improving energy efficiency and reliability, simple and easy control, and improving cooling efficiency
CN100520229CInactive Publication Date: 2009-07-29HUNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN UNIV
Publication Date
2009-07-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a multi-component closed-circuit soil source water-water heat pump system. The source side outlet of the water-water heat pump (7) is connected with a first circulating water pump (6), and the water-water heat pump (7) passes through the first circulating water pump ( 6) Connect the first valve (8), the underground coupling heat exchanger, and the second valve (9) in series to form the first source-side loop, and the water-water heat pump (7) connects the third valve ( 4), the heat exchanger (3), and the fourth valve (5) are connected in series to form a second source-side loop, and the other heat exchange end of the heat exchanger is connected to a cooling tower (16) through a second circulating water pump (2); A fifth valve (10) is connected in front of the second valve (9) and behind the third valve (4), and a sixth valve (12) is connected in front of the fourth valve (5) and behind the first valve (8). The present invention is suitable for projects in hot summer and cold winter regions where the air conditioning load in summer is greater than the heating load in winter, can greatly reduce the initial investment of heat pump systems in this type of project, and improve the energy efficiency and reliability of the system. Multiple closed-circuit soil source water - Water heat pump system.
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Description

technical field

[0001] The invention relates to a heat pump system, in particular to a multi-element closed-circuit soil source water-water heat pump system composed of a cooling tower and a closed-circuit underground coupling heat exchanger. Background technique

[0002] The pure soil source heat pump system uses the underground soil as the heat source or heat sink, and is mostly used in heating and air conditioning projects. In order to make full use of the heat in the underground soil structure, the size of the underground coupling heat exchanger is determined according to the heating load (maximum heat absorption) under a certain non-guaranteed rate, or the cooling load (maximum heat dissipation) under a certain non-guaranteed rate , so that the designed underground heat exchanger is large enough, coupled with the high cost of the underground heat exchanger, resulting in high cost of the entire heat pump system. Such a system is only suitable for heating-based cold area...

Claims

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