CN2602324Y - Down-hole heat transfer and energy-gain device - Google Patents
Down-hole heat transfer and energy-gain device Download PDFInfo
- Publication number
- CN2602324Y CN2602324Y CN 03200529 CN03200529U CN2602324Y CN 2602324 Y CN2602324 Y CN 2602324Y CN 03200529 CN03200529 CN 03200529 CN 03200529 U CN03200529 U CN 03200529U CN 2602324 Y CN2602324 Y CN 2602324Y
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- China
- Prior art keywords
- heat
- water
- heat exchanger
- exchanger tube
- geothermal
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Abstract
The utility model provides an under-well heat exchanging and energy taking equipment, which contains a heat pump, a U-shaped heat exchange tube, a geothermal well and a recycle pump. The two ends of the heat exchange tube connect with the inlet and the outlet of the heat pump respectively, and the recycle pump is arranged on the loop of the heat exchange tube. Cold water enters into the heat exchange tube through the U-shaped heat exchange tube, exchanges heat with the geothermal water in the geothermal well and then returns to the inlet of the heat pump, after being taken heat energy by the heat pump, the water returns to the inlet of the heat exchange tube, and in this way the under-well energy taking and heat exchanging are realized. The equipment of the utility model can realize heat taking without water pumping in the course of geothermal utilization, and solve the problems of water environment change and the earth surface subsidence. The utility model provides an ideal geothermal utilization method with high economy and social values.
Description
Technical field
The utility model relate to carry out in a kind of geothermal well that heat exchange gets can equipment.
Background technology
The exploitation of geothermal water can bring the change and the ground settlement of groundwater environment.Almost all might cause the surface subsidence that can monitor from the long-term withdrawn fluid of any heat storage.Observed actual settling amount depends on the Fluid Volume of extraction, also depends on the intensity of heat storage rock mass.The consequence brought to environment of final settlement depends on the situation of utilizing in soil, ground in addition.The Fuzhou City of China confirms that through level duplicate measurements repeatedly surface subsidence has taken place in hot water mining area.During 1967 to 1986 19 years, the scope of ground settlement＞150mm is 2.6km
2, the location of settling amount maximum is 313～414mm.The distribution overlaid of the distribution of ground settlement, can demonstrate the substantial connection of the surface subsidence amplitude and the water level range of decrease with corresponding Quaternary system hot water water level drop-out value.The central area of drawdown funnel is the area of surface subsidence amplitude maximum.The speed of surface subsidence roughly data is: the sixties＜20mm/a, the seventies 25～33mm/a, the initial stage nineties later stage eighties increases to more than the 40mm/a.Meanwhile the yield of hot water also is increased to about 5,000,000 sides by annual tens sides.
Recharge many environmental problems of being followed for the geothermal field exploitation a kind of solution is provided, and this technology is used for the heat accumulation and the Chu Leng engineering in water-bearing layer at present.Need careful engineering design but recharge, stop up to prevent wellhole or water-bearing layer.The hot field that significantly is lower than together dark hydrostatic pressure at heat storage pressure can adopt gravity to recharge.If recharge water water quality is cleaner, salinity is lower, only needs clarifying treatment just can recharge in this case.Otherwise just need carry out Chemical Pretreatment needs again to filter.Under specific circumstances, the higher water of salinity also can recharge, yet can produce chemical precipitates because the brine temperature of high salinity descends, although the thermal content height recharges and also has major obstacles.The expense of recharging is very high in addition, when the load of heat supply is little, makes a call to two wells, and the filling pattern of smoking of employing is wasted very much.
Therefore, need provide the heat exchange of a kind of down-hole to get at present can equipment, and a heat-obtaining does not draw water, and with problems such as the change that solves water environment and ground settlements, is a kind of desirable geothermal utilization mode, has very high economy and environmental value.
Summary of the invention
The purpose of this utility model is: design the down-hole heat exchange and get energy equipment, realize a heat-obtaining that do not draw water in the geothermal well, thereby avoid drawing water subsidence that causes and the change of recharging the groundwater environment of bringing.
The utility model provides the heat exchange of a kind of down-hole to get energy equipment, and this equipment comprises: heat pump, heat exchanger tube, geothermal well and circulating pump, and wherein the two ends of heat exchanger tube link to each other with the entrance and exit of heat pump respectively, and circulating pump is installed on the heat exchanger tube loop.
Said heat pump is used for carrying out the extraction of heat.Said heat exchanger tube is preferably U-shaped sealing heat exchanger tube, and its down-hole part can adopt any shapes that are suitable for heat exchange such as straight tube, helix tube or finned tube, is used for carrying out heat exchange with GEOTHERMAL WATER.The side of pouring water of U-shaped pipe adopts Heat Conduction Material, and the side of drawing water adopts heat-barrier material, or externally is surrounded by insulation material.Circulating pump is used for promoting the water circulation.
The installation process of the utility model equipment is: in geothermal well with the higher GEOTHERMAL WATER of temperature, and the U-shaped of packing into sealing down-hole heat exchanger tube, the outlet of heat pipe and arrival end link to each other with outlet with the inlet of heat pump respectively, thereby form loop.Cold water enters in the heat exchanger tube from the inlet of U-shaped heat exchanger tube earlier, carries out returning after the exchange heat inlet of heat pump in geothermal well with GEOTHERMAL WATER, returns the inlet of heat exchanger tube after extracting heat energy through heat pump, thereby realizing that the down-hole is got can heat exchange.
Adopt equipment of the present utility model, can realize that a heat-obtaining does not draw water in the geothermal utilization process,, provide a kind of desirable geothermal utilization mode, have very high economy and society value with problems such as the change that solves water environment and ground settlements.
Description of drawings
Fig. 1 gets and can form schematic diagram by equipment for down-hole of the present utility model heat exchange.
The specific embodiment
Below in conjunction with accompanying drawing content of the present utility model is described in detail, is to be understood that protection domain of the present utility model is not subjected to restriction described below.
Fig. 1 has provided the heat exchange of the utility model down-hole and has got and can form schematic diagram by equipment, this equipment has comprised as seen from the figure: heat pump 1, U-shaped heat exchanger tube 2, geothermal well 3 and circulating pump 4, wherein the outlet of U-shaped heat exchanger tube 2 and arrival end link to each other with the entrance and exit of heat pump 1 respectively, and circulating pump 4 is installed on the loop of U-shaped heat exchanger tube 2.Wherein the U-shaped pipe adopts steel material, and the side of drawing water outside is surrounded by insulation material.
Said heat pump is used for carrying out the extraction of heat.Said heat exchanger tube is used for carrying out heat exchange with GEOTHERMAL WATER, and the down-hole part adopts straight tube, also can adopt any other shapes that are suitable for heat exchange such as helix tube or finned tube certainly.Circulating pump is used for promoting the water circulation.
The installation process of the utility model equipment is: in geothermal well 3 with the higher GEOTHERMAL WATER of temperature, and the U-shaped of packing into sealing down-hole heat exchanger tube 2, the outlet of heat exchanger tube 2 and arrival end link to each other with the entrance and exit of heat pump 1 respectively, thereby form loop.Cold water enters in the heat exchanger tube from the inlet of U-shaped heat exchanger tube 2 earlier during operation, carries out returning after the exchange heat inlet of heat pump 1 geothermal well 3 in GEOTHERMAL WATER, returns the inlet of U-shaped heat exchanger tube 2 after extracting heat energy through heat pump 1, thereby realizes that the down-hole gets the energy heat exchange.
Adopt equipment of the present utility model, can realize that a heat-obtaining does not draw water in the geothermal utilization process,, provide a kind of desirable geothermal utilization mode, have very high economy and society value with problems such as the change that solves water environment and ground settlements.
Claims (4)
1. energy equipment is got in a down-hole heat exchange, it is characterized in that this equipment comprises: heat pump, heat exchanger tube, geothermal well and circulating pump, and wherein the two ends of heat exchanger tube link to each other with the entrance and exit of heat pump respectively, and circulating pump is installed on the heat exchanger tube loop.
2. according to the described equipment of claim 1, it is characterized in that said heat exchanger tube is a U-shaped sealing heat exchanger tube.
3. according to the described equipment of claim 1, it is characterized in that said heat exchanger tube down-hole partial shape is straight tube, helix tube or finned tube.
4. according to the described equipment of claim 1, it is characterized in that the said heat exchanger tube side of pouring water adopts Heat Conduction Material, the side of drawing water adopts heat-barrier material or outside to be surrounded by heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200529 CN2602324Y (en) | 2003-01-09 | 2003-01-09 | Down-hole heat transfer and energy-gain device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200529 CN2602324Y (en) | 2003-01-09 | 2003-01-09 | Down-hole heat transfer and energy-gain device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2602324Y true CN2602324Y (en) | 2004-02-04 |
Family
ID=34157264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03200529 Expired - Fee Related CN2602324Y (en) | 2003-01-09 | 2003-01-09 | Down-hole heat transfer and energy-gain device |
Country Status (1)
| Country | Link |
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| CN (1) | CN2602324Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538265A (en) * | 2012-02-27 | 2012-07-04 | 杭州岩土工程有限公司 | Method and device for obtaining heat from earthcrust temperature raising layer |
| CN106123629A (en) * | 2016-06-29 | 2016-11-16 | 胡振强 | Source pump heat exchanger |
| CN111997612A (en) * | 2020-07-24 | 2020-11-27 | 中国矿业大学 | Deep mine geothermal energy and coal resource fluidization collaborative mining method |
-
2003
- 2003-01-09 CN CN 03200529 patent/CN2602324Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538265A (en) * | 2012-02-27 | 2012-07-04 | 杭州岩土工程有限公司 | Method and device for obtaining heat from earthcrust temperature raising layer |
| CN106123629A (en) * | 2016-06-29 | 2016-11-16 | 胡振强 | Source pump heat exchanger |
| CN106123629B (en) * | 2016-06-29 | 2018-11-06 | 山东圣克莱尔新能源有限公司 | Heat pump unit heat exchanger |
| CN111997612A (en) * | 2020-07-24 | 2020-11-27 | 中国矿业大学 | Deep mine geothermal energy and coal resource fluidization collaborative mining method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |