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Terrestrial heat recovery system

A recovery system and heating system technology, applied in heat pumps, lighting and heating equipment, refrigeration components, etc., can solve the problems of high-temperature geothermal water energy grade loss, etc., to reduce installed capacity, reduce power consumption, save energy effect

Active Publication Date: 2015-08-19
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the existing geothermal heating utilization method, the high-temperature geothermal water directly exchanges heat with the heating water through the heat exchanger, and the heat exchange temperature difference reaches more than 30°C, and the energy grade loss of the high-temperature geothermal water is relatively large

Method used

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] Such as figure 1 As shown, the geothermal recovery system according to the first embodiment of the present invention includes a heat source system and a heating system, the geothermal recovery system also includes an absorption heat pump 20 and a centrifugal heat pump 30, and the heating system passes through the absorption heat pump 20 and the centrifugal heat pump 30 exchange heat with the heat source system. In the present invention, the absorption heat pump 20 and the centrifugal heat pump 30 are arranged, and the absorption heat pump 20 is driven by a free low-grade heat source, so that the installed capacity of the centrifugal heat pump 30 can be reduced. Compared with the prior art, electric heat pumps are used to extract the same heat In the present invention, by combining the absorption heat pump 20 and the centrifugal heat pump 30, the po...

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Abstract

The invention provides a terrestrial heat recovery system which comprises a heat source system and a heat supply system as well as an absorption type heat pump and a centrifugal type heat pump, and the heat supply system exchanges heat with the heat source system through the absorption type heat pump and the centrifugal type heat pump. According to the terrestrial heat recovery system, the absorption type heat pump and the centrifugal type heat pump are arranged, a free low-grade heat driven absorption type heat pump is used, the installed capacity of the centrifugal type heat pump is reduced, compared with that an electricity-driven heat pump is used for completely extracting same heat in the prior art, more than 40% of power consumption can be reduced, energy is saved, and the economy is improved by the aid of the combination manner of the absorption type heat pump and the centrifugal type heat pump.

Description

technical field [0001] The invention relates to the technical field of geothermal recovery, in particular to a geothermal recovery system. Background technique [0002] my country is rich in geothermal resources. It is predicted that within 2000m from the surface, there are geothermal resources equivalent to 13.7 billion tons of standard coal. At present, more than 2,000 geothermal hotspots have been discovered across the country, mainly with medium and low temperature geothermal resources below 150 °C. Geothermal heating has been maturely applied in areas rich in geothermal resources (such as Beijing, Tianjin, etc.). The heating method has been developed from direct heating to indirect heating (using heat exchanger), floor heating, heat pump technology and other methods. [0003] In the existing heating method, the 80-150°C geothermal water pumped out by the submersible pump first exchanges heat with the heating water, and the temperature drops to 40-50°C. In order to ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/06F25B25/00
CPCF25B25/00F25B30/06
Inventor 刘华王升张治平王娟陆超
Owner GREE ELECTRIC APPLIANCES INC