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Longhole heat exchanger for geothermal well

A technology of heat exchangers and geothermal wells, applied in geothermal collectors, geothermal energy, geothermal energy power generation, etc., can solve the problems of the development and utilization of geothermal well water in alpine regions, no groundwater volume, and small water volume, etc., to achieve structural Novelty, reliable use, good energy-saving effect

Active Publication Date: 2016-06-22
黑龙江省龙水国际环境能源发展集团股份有限公司
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Problems solved by technology

[0002] In the exploration and construction of geothermal wells in the alpine regions of northern my country, there are often technical problems that the temperature of the geothermal wells is very high but the water volume is not large. The development and utilization of geothermal well water has been affected

Method used

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  • Longhole heat exchanger for geothermal well
  • Longhole heat exchanger for geothermal well

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Embodiment Construction

[0010] The best embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings. A geothermal well deep hole heat exchanger includes a deep well submersible pump 1, and water circulation heat exchange tubes 5 with intervals left in the metal outer well tube 6, which are arranged sequentially from top to bottom on the tube wall of the metal outer well tube 6 . Sieve-shaped perforations 7 are arranged at intervals, and PE spiral tubes 4 are arranged inside the water circulation heat exchange tubes 5, and upper sealing plugs 3 are respectively fixed on the upper end and the lower end of the PE spiral tubes 4 in the water circulation heat exchange tubes 5 And the lower sealing plug 8, on the upper end of the water circulation heat exchange tube 5, the pump chamber casing 2 is sealed and fixed above the upper sealing plug 3, and the pump chamber casing 2 is connected to the PE spiral pipe 4 through the upper sealing plug 3. The wa...

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Abstract

The invention discloses a longhole heat exchanger for a geothermal well, belonging to a geothermal energy exploitation technology. The longhole heat exchanger is characterized in that a water circulation heat exchanging pipe is arranged in a metal outer well pipe; sieve-shaped perforations are formed in the pipe wall of the metal outer well pipe at intervals; a PE spiral pipe is arranged in the water circulation heat exchanging pipe; an upper blocking plug and a lower blocking plug are separately and fixedly arranged on the upper end part and the lower end part of the PE spiral pipe; a pump chamber shell is hermetically and fixedly arranged on the upper end part of the water circulation heat exchanging pipe; the pump chamber shell communicates with the water outlet end of the PE spiral pipe through the upper blocking plug; a deep well submersible pump is arranged in the pump chamber shell; a water inlet through hole is formed in the side wall of the bottom part of the water circulation heat exchanging pipe and communicates with the water inlet end of the PE spiral pipe through the lower blocking plug; and geothermal deep well thermal energy is converted into hot water thermal energy by the longhole heat exchanger, and the longhole heat exchanger has the characteristics of being novel, reasonable and simple in structure, reliable for use and good in energy-saving effect.

Description

technical field [0001] The invention belongs to the geothermal energy development technology, and mainly relates to a geothermal energy heat exchanger. Background technique [0002] In the exploration and construction of geothermal wells in the alpine regions of northern my country, there are often technical problems that the temperature of the geothermal wells is very high but the water volume is not large. The development and utilization of geothermal well water has been affected. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art, and to design and provide a geothermal well deep-hole heat exchanger with a new structure, so as to increase the amount of groundwater, convert the geothermal energy at the bottom of the well into water heat energy, and meet the requirements of users. . [0004] The basic design of the present invention is: the geothermal well deep hole heat exchanger incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J3/08
CPCF24T10/15Y02E10/10
Inventor 祁福利李永利王宏存薛军张孟才孙永泉郑拓飞李祥龙孙立新
Owner 黑龙江省龙水国际环境能源发展集团股份有限公司
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