Wellhead sealing structure of mining and irrigating system of underground water source heat pump, and detection method thereof
A technology of water source heat pump and sealing structure, applied in heat pump, geothermal energy, geothermal power generation and other directions, can solve the problems of not being particularly easy to seal, complicated wellhead equipment, etc., and achieve the effect of simple structure, reasonable sealing scheme and ingenious design
Inactive Publication Date: 2013-09-18
上海可控环境农业工程技术研究中心 +1
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Problems solved by technology
Pipelines can be made to be watertight, but the wellhead equipment is complicated. The suction pipe, recharge pipe, submersible pump and sensor cables all need to be connected from the wellhead, so sealing is not particularly easy. Not only must a reasonable sealing plan be designed, In addition, there must be effective monitoring measures to check the air tightness and recharge status of the groundwater system at any time
Method used
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[0016] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0017] Such as figure 1 with figure 2 As shown, a wellhead sealing structure of an underground water source heat pump irrigation system according to the present invention includes a flange 7 welded to the wellhead and a flange cover 6 used in conjunction with it. The flange cover 6 is provided with several pre-installed Hole, suction pipe 1, submersible pump cable 2 and water level thermometer cable 12 extend from the inside of the wellhead through the pre-installed hole to the outside of the well, and a vacuum gauge 10 and a pressure gauge 11 for detecting the condition in the well are also installed on the top of the flange cover 6 , a manual exhaust valve 13 is provided at the wellhead.
[0018] The sealing installation structure of the subm...
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The invention discloses a wellhead sealing structure of a mining and irrigating system of an underground water source heat pump. The wellhead sealing structure comprises a flange and a flange cover, wherein the flange is welded at a wellhead; the flange cover is matched with the flange for use and is provided with a plurality of preassembling holes; a water drawing pipe, a submersible pump cable and a water thermometer cable penetrate through the preassembling holes from the inner part of the wellhead to the outer part of a well; the top end of the flange cover is also provided with a vacuum meter and a pressure meter for detecting the conditions in the well; a manual exhaust valve is arranged at the wellhead. The wellhead sealing structure disclosed by the invention has the beneficial effects that the structure is simple, the design is ingenious, a reasonable sealing scheme is provided, and the air tightness and the re-irrigation state of an underground water system also can be effectively monitored.
Description
technical field [0001] The invention relates to the technical field of groundwater systems, in particular to a wellhead sealing structure of a groundwater source heat pump irrigation system and a detection method thereof. Background technique [0002] The difficulty of the ground water source heat pump air conditioning system lies in the recharge of ground water. If the water wells are not well treated, the reinjection wells will be clogged by impurities and cannot achieve the reinjection capacity. In Shanghai and other Yangtze River Delta regions, the water quality of the second aquifer with a depth of about 100m has a large content of iron and manganese ions, which will degrade after contact with air. It will quickly oxidize and produce precipitation, and the resulting sediment can easily block the well pipe filter network and cause the groundwater recharge capacity to decline. Therefore, if air enters the groundwater system, it will affect the groundwater recharge in the ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F25B30/06F24J3/08F16J15/00G01M3/26
CPCF24T10/00Y02E10/10
Inventor 周强张兆劼陆乐陈玮
Owner 上海可控环境农业工程技术研究中心