CN204987289U - Geothermal energy central air conditioning connection mode shallow layer geothermal energy is with well conversion equipment - Google Patents
Geothermal energy central air conditioning connection mode shallow layer geothermal energy is with well conversion equipment Download PDFInfo
- Publication number
- CN204987289U CN204987289U CN201520279484.8U CN201520279484U CN204987289U CN 204987289 U CN204987289 U CN 204987289U CN 201520279484 U CN201520279484 U CN 201520279484U CN 204987289 U CN204987289 U CN 204987289U
- Authority
- CN
- China
- Prior art keywords
- well
- well casing
- tube
- geothermal energy
- interior
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The utility model discloses a geothermal energy central air conditioning connection mode shallow layer geothermal energy is with well conversion equipment, including water supply well and well lid, interior well casing and outer well casing, outlet pipe, wet return and immersible pump, wherein outer well casing and interior well casing comprise the welding of a plurality of well casing sections respectively, are connected with outer tube sealing joint between the adjacent outer well casing section, and the inner wall relevant position of outer tube sealing connection head is provided with the rubber ring frustum to including corresponding position on the well casing outer wall set up rubber awl piece respectively, rubber awl piece can match suit and support with the conical surface of rubber ring frustum, the utility model discloses can ensure that outer tube sealing joint and rubber awl piece are laminated completely and not keep the clearance. Each contact of interior well casing middle part only need when the welding with interior well casing upwards pull out a take the altitude H be convenient for the operation can because outer tube sealing joint laminates with rubber awl piece all the time totally, need not consider welding error factor, construction convenience is simple, and is efficient, effectual.
Description
Technical field
The utility model belong to (heat) can in field of central air-conditioning about shallow-layer (heat) can utilize with well conversion equipment, with particularly relating to one (heat) energy central air-conditioning (heat) can utilize with well conversion equipment.
Background technology
Ground (heat) can central air-conditioning, is with the constant all the year round underground water of temperature for transmitting geothermal energy medium, by source pump, to improve or reduction water temperature reaches refrigeration, heats object, for building provides the central air-conditioning of cold and heat source.Because its Energy Efficiency Ratio is high, than other traditional form central air-conditioning energy 40 ~ 60%, energy conservation and consumption reduction effects significantly and is progressively subject to the favor of government, office, business unit, reaches the accreditation of most user simultaneously.At present, the return water mode having implemented to install water-source heat-pump central air conditioner all adopts " many wells recharge " mode.Namely draw water from a bite water supply well, after the cold in water or heat being taken away by the heat exchanger of heat pump main frame, water is discharged, recharge to the water supply well of more than two mouthfuls or two mouthfuls.This mode advantage is that Energy Efficiency Ratio is high, but the water that there is discharge all cannot recharge the problem to underground in time.First, because backwater naturally trickles without pressure in well head open type, not only back-flow velocity is slow, and easily causes backwater to pollute.And the water of underground cannot be got back in time, can overflow from well head or directly be disposed to ground by pipeline.Long-term discharge, not only causes the waste of water resource, level of ground water also may be caused to decline even exhausted, and then have influence on the safety of surrounding building; Secondly, the well number that needs are beaten is more, and the land area that need take is large, cannot use in the groups of building (thing) that floor space is less.The above-mentioned shortcoming of " many wells recharge " mode, the power savings advantages of water-source heat-pump central air conditioner is cancelled, be promote at water-source heat-pump central air conditioner, implementing a bottleneck problem in the process of energy-saving and cost-reducing, environmental protect, is also the behavior that national hydraulic department is strictly forbidden.
Due to its drawback large area manifest, be mainly manifested in the underground water of taking and can not accomplish that 100% all recharges to underground, then discharge earthward, cause water supply well to silt up, water level decreasing.This mode is while " taking " underground water temperature, and also " uses " underground water, the water resource causing preciousness wastes greatly, makes water-source heat-pump central air conditioner because of anhydrous available and cause whole system to be paralysed simultaneously.Therefore.The shortcoming of " many wells recharge " mode becomes the bottleneck of water-source heat-pump central air conditioner popularization and development.
In existing same well recharging technique, adopt the mode that inner and outer pipes is installed respectively, such as Patent publication No is in the patent document of CN103982956A, discloses the same well recharging technique by interior well casing and outer well tube, first need to enter outer well tube under in well, well casing in descending again after putting in place.Outer well tube inside is provided with the contact surface and isolation structure that cooperatively interact between interior well casing outer wall, only have that the length of each contact-segment is identical could keep connection sealed against one another, but due to the usual rice up to a hundred of well depth, outer well tube and interior well casing independently many sections are by being welded to form, and the different needs scene of different well depth situation carries out cutting and weld job, in, outer well tube go into the well respectively after because of displacement, the factor impacts such as cutting error or welding error, accumulation of error degree is big causes the contact sealing property between interior well casing and outer well tube bad, reality is difficult to accomplish that whole separation layer all realizes being tightly connected.In addition, because sealing docking operation occurs in down-hole, be in blind area, servant cannot operate, safeguard and detect, separation layer can stop weld bond position, if interior well casing pull-out is welded more than separation layer, in lower again after welding, well casing just can not ensure precision, makes the support degree of interior outer well tube and seal tightness unpredictable, and this is the important problem that same well recharges equipment and exists in construction, the program is time-consuming at immersible pump in the future, take a lot of work, and affects the use of air-conditioning for a long time.
Utility model content
The defect that the utility model not only will overcome completely " many wells recharge ", makes backwater energy 100% all recharge to underground, leaving water temperature can also be made to remain at suitable temperature; Utilize the package assembly of inner and outer pipes integral type that product specification can be made to unitize and standardization simultaneously, avoid inside and outside borehole axis to problem of misalignment, butt-joint operation can be made to be in outside well and carry out, guarantee the operability be tightly connected, improve sealing joint quality and efficiency of construction.
For achieving the above object, the utility model adopts following technical scheme: a kind of geothermal energy central air-conditioning interconnection system shallow layer geothermal energy is with well conversion equipment, comprise water supply well and well lid, interior well casing and outer well tube, outlet pipe, return pipe and immersible pump, described outer well tube and interior well casing have multiple well casing section to be welded to form respectively, outer tube seal nipple is connected with between adjacent outer well tube section, or be connected again between seal of tube joint with adjacent outer well tube section outside and compensate connector, the inwall relevant position of described outer tube joint for sealing connecting is provided with rubber ring frustum, and the correspondence position on interior well casing outer wall arranges rubber cone sheet respectively, and the upper side of rubber cone sheet has additional metal backing, described rubber cone sheet can mate with the conical surface of rubber ring frustum and is set with and supports, the rubber cone sheet external diameter being positioned at lower floor is not more than upper rubber ring frustum internal diameter, outer well tube is sleeved on inside water supply well, and interior well casing is set in outer well tube center, and the tube wall of outer well tube between rubber ring frustum arranges permeable hole, outlet pipe carries below the waterline that immersible pump is lifted in interior well casing, and multiple return pipe to be drained between adjacent conical isolation supporting layer in region respectively.
Taper isolation supporting layer arranges inside support ring in outer well tube inwall relevant position, and described rubber ring frustum is fixed on outside inside support ring.
Be air heat-insulation layer between outlet pipe and interior well casing, or pour into heat-barrier material in interlayer between outlet pipe and interior well casing and form thermal insulation layer, produce cold and hot exchange to avoid recharge water and water outlet.
Annular permeable layer is provided with between the borehole wall and outer well tube of water supply well, this annular permeable layer is integral annular seepage material, or annular permeable layer is provided with inside and outside supporting network and fills seepage material in inside and outside supporting network interlayer, or annular permeable layer is filled in the gravel material supported between water-permeable pipe and soil horizon.
A kind of geothermal energy is with the flexible formula method of attachment of well conversion equipment, water supply well Cheng Jinghou, multi-group hole outer well tube section and solid interior well casing section are matched and goes into the well by successively lifting, wherein the below of each interior well casing section is fixed with rubber cone sheet, welding outer tube seal nipple is needed between adjacent outer well tube section, the inwall of seal of tube joint is outside provided with rubber ring frustum, and each rubber ring frustum can mate with the conical surface of corresponding rubber cone sheet and fits together; The rubber cone sheet external diameter being positioned at lower floor is not more than upper rubber ring frustum internal diameter; (1) first outer tube seal nipple is mated to fit with the conical surface of corresponding rubber cone sheet and dock, (2) (the mounted outer well tube mouth of pipe is exceeded after then interior well casing being promoted certain altitude H, so that welding operation) weld with adjacent interior well casing, (3) after the welding of interior well casing section again by outer tube seal nipple with interior well casing synchronously decline certain altitude H, outer tube seal nipple and adjacent outer well tube section weld together by (4) again; Repeat above step (1)-step (4) until outer well tube has welded in final stage; Outlet pipe carries below the waterline that immersible pump is lifted in interior well casing, and multiple return pipe is drained between adjacent rubber ring frustum in region respectively, seals well head upper cover.If there is gap between outer tube seal nipple with adjacent outer well tube section cannot directly weld, then can weld in gap compensate connector keep be connected weld.In such scheme, first outer tube seal nipple can be mated with the conical surface of corresponding rubber cone sheet and fit, simply fixing again, guarantee that outer tube seal nipple and rubber cone sheet are fitted all the time completely and do not stay gap, take out simple fixing after outer tube seal nipple welds with bottom outer well tube section.
Arrange inside support ring in outer well tube inwall relevant position, rubber ring frustum is fixed on outside inside support ring, and rubber cone sheet upper side sets up metal backing, and metal backing solid welding is on interior well casing outer wall.
Keep outer well tube and water supply well inwall to have annular gap, in annular gap, fill seepage material form annular permeable layer.
The beneficial effects of the utility model are:
1. the utility model such scheme outer well tube and interior well casing is successively lifted piecemeal to go into the well.First each outer tube seal nipple and the conical surface of corresponding rubber cone sheet being mated fits docks simple fixing, then weld with adjacent interior well casing after interior well casing being promoted certain altitude H, again by outer tube seal nipple with interior well casing synchronously decline certain altitude H, outer tube seal nipple and adjacent outer well tube section are welded together, removes simply fixing.If there is gap between outer tube seal nipple with adjacent outer well tube section cannot directly weld, then can weld in gap compensate connector keep be connected weld.Can guarantee that outer tube seal nipple and rubber cone sheet are fitted completely like this and not stay gap.In the middle part of interior well casing, interior well casing only need upwards be pulled out certain altitude H convenient operation when welding by each contact, and because outer tube seal nipple and rubber cone sheet are fitted all the time completely, need not consider to weld error component, easy construction is simple, and efficiency is high, effective.
The utility model project organization is more reasonable, and interior well casing can be allowed not exclusively equal with outer well tube length, reduces difficulty of construction, has wider allowed band, increase work efficiency to cutting error and welding error.Even if in comparatively great error range, interior pipe can realize automatically stretching or truncate is repaid, and overcomes multiple isolation supporting layer docking imprecision problem and the unequal problem of load in blind area, down-hole.Avoid the error because axial disunity causes or displacement, can guarantee that every section of docking is all in Best link state.Avoid, because underlying well casing is improper, causing soil cave-in, causing water supply well to scrap.
By arranging rubber ring frustum, and the rubber cone sheet external diameter of lower floor is not more than upper rubber ring frustum internal diameter, easily interior well casing can be put into outer well tube, and easily interior well casing is taken out from outer well tube, for dress well and maintenance bring convenience, improve efficiency of construction and reduce maintenance cost and difficulty.The utility model has tri-level construction structure, its outer well tube is disposable go into the well after forever use; The Rational structure of interior well casing and outer well tube guarantees that interior well casing can carry out well servicing during several years even many decades; Be lifted on the immersible pump in interior well casing, can promote at any time according to actual needs or decline or safeguard.
4. by industrialized manufacture and processing in workshop, product specification is unitized and standardization, avoids inside and outside borehole axis to problem of misalignment, guarantee the operability be tightly connected, improve sealing joint quality.The standard component of industrialization is beneficial to on-the-spot fast, accurately location and construction.Tubulature speed at least doubles.
5. immersible pump height can be promoted to interior well casing medium position, and need not be connected to bottom interior well casing, has saved outlet pipe length and cable length, has also reduced maintenance difficulties.
In same well, realize the water outlet of equivalent, backwater, and make backwater after carrying out sufficient heat exchange with soil, temperature reaches the leaving water temperature of starting stage; Make, in backwater and outlet pipe tube wall contact process, not produce new heat exchange with the water outlet reaching initial leaving water temperature, thus can significantly improve water source heat pump units efficiency simultaneously.Multipair sealing isolation layer composition multilayer backwater space, realizes the object of backwater while of multichannel, relends and help high pressure backwater, guarantee that individual well can complete whole backwater task.By means of annular permeable layer and soil horizon, reduce water return flow speed, so that backwater is being summarized in underground water after fully carrying out cold and hot exchange by the backwater of temperature height and stratum, finally reach the object of same well water resources circulation.Thus avoid the waste of water resource, avoid level of ground water to decline because of mobile even exhaustion, guarantee that subsurface structure is stablized and the safety of surrounding building.This mode makes underground water be in air-tight state all the time, and the first, to water itself without any pollution; The second, at all do not waste underground water; 3rd, owing to adopting combined type to go out water source well casing, by the backwater of the cold taken away or heat by air exclusion, thoroughly stopped contact each other, make it can not because going out, the temperature difference of backwater and produce new heat exchange, maintain the constant of leaving water temperature.The water of extraction is all recharged to underground by the utility model, has accomplished the heat of only " utilizations " underground water and cold veritably and has not wasted the groundwater resources of preciousness.Floor space is little, and ensure that level of ground water is normal, and can not affect the basis of building, the place making area narrow and small also can adopt energy-conservation water-source heat-pump central air conditioner.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model.
Number in the figure 1 is outer well tube, and 2 is interior well casing, and 3 is outlet pipe, 4 is return pipe, and 5 is well lid, and 6 is rubber ring frustum, 7 is liner plate, and 8 is rubber cone sheet, and 9 is outer tube seal nipple, 10 for compensating connector, 11 is inside support ring, and 12 is interior well casing weld, and 13 is immersible pump, 14 is outer well tube weld, and 15 is annular permeable layer.
detailed description of the invention:
Embodiment 1: see Fig. 1, a kind of water-source heat-pump central air conditioner water supply well interconnection system, with well backflow device, comprises water supply well and well lid, interior well casing and outer well tube, outlet pipe, return pipe and immersible pump, annular permeable layer etc.
Outer well tube and interior well casing have multiple well casing section to be welded to form respectively, and outer well tube section and interior well casing section are preferably matched so that unified process.Be connected with outer tube seal nipple between adjacent outer well tube section, also can be connected again between seal of tube joint with adjacent outer well tube section outside as required and compensate connector.And be that inside support ring is set in outer well tube inwall relevant position at taper isolation supporting layer, rubber ring frustum is fixed on outside inside support ring.Correspondence position on described interior well casing outer wall arranges rubber cone sheet respectively, and the upper side of rubber cone sheet has additional metal backing.Described rubber cone sheet can mate with the conical surface of rubber ring frustum and is set with and supports.
The rubber cone sheet external diameter being positioned at lower floor is not more than upper rubber ring frustum internal diameter.
Outer well tube is sleeved on inside water supply well, and interior well casing is set in outer well tube center, and the tube wall of outer well tube between rubber ring frustum arranges permeable hole; Outlet pipe carries below the waterline that immersible pump is lifted in interior well casing, and multiple return pipe to be drained between adjacent conical isolation supporting layer in region respectively.
In addition, can also be air heat-insulation layer between outlet pipe and interior well casing, or pour into heat-barrier material in interlayer between outlet pipe and interior well casing and form thermal insulation layer, produce cold and hot exchange to avoid recharge water and water outlet.
Annular permeable layer is provided with between the borehole wall and outer well tube of water supply well, this annular permeable layer is integral annular seepage material, or annular permeable layer is provided with inside and outside supporting network and fills seepage material in inside and outside supporting network interlayer, or annular permeable layer is filled in the gravel material supported between water-permeable pipe and soil horizon.
Embodiment 2: a kind of flexible formula method of attachment of same well backflow device, see Fig. 1, at water supply well Cheng Jinghou, matches multi-group hole outer well tube section and solid interior well casing section and goes into the well by successively lifting.
Wherein the below of each interior well casing section is fixed with rubber cone sheet, and rubber cone sheet upper side sets up metal backing, and metal backing solid welding is on interior well casing outer wall.
Need welding outer tube seal nipple between adjacent outer well tube section, arrange inside support ring in outer well tube inwall relevant position, rubber ring frustum is fixed on outside inside support ring.
Each rubber ring frustum can mate with the conical surface of corresponding rubber cone sheet and fits together.The rubber cone sheet external diameter being positioned at lower floor is not more than upper rubber ring frustum internal diameter.
Certain to outer well tube section and interior well casing section with the welding process of a pair, adjacent upside outer well tube section and interior well casing section is: outer tube seal nipple first mates to fit with the conical surface of corresponding rubber cone sheet and docks by (1), and simply fixing, iron wire or simple setting tool can be utilized; (2) then interior well casing section is promoted certain altitude H, exceed the mouth of pipe of mounted outer well tube section, so that welding operation, and interior well casing section is welded with adjacent interior well casing section by this; (3) after adjacent two interior well casing section welding, again by outer tube seal nipple with interior well casing synchronously decline certain altitude H, (4) again outer tube seal nipple and adjacent outer well tube section are welded together, if there is gap between outer tube seal nipple with adjacent outer well tube section cannot directly weld, then can weld in gap compensate connector keep be connected weld; Simply fixing between outer tube seal nipple and corresponding rubber cone sheet can be removed after welding.Repeat above step (1)-step (4) until outer well tube has welded in final stage.
Outlet pipe carries below the waterline that immersible pump is lifted in interior well casing, and multiple return pipe is drained between adjacent rubber ring frustum in region respectively, seals well head upper cover.In such scheme, first outer tube seal nipple can be mated with the conical surface of corresponding rubber cone sheet and fit, simply fixing again, guarantee that outer tube seal nipple and rubber cone sheet are fitted all the time completely and do not stay gap, take out simple fixing after outer tube seal nipple welds with bottom outer well tube section.
Keep outer well tube and water supply well inwall to have annular gap, in annular gap, fill seepage material form annular permeable layer 15.Annular permeable layer 15 various informative, such as following three kinds of structures: (1) can make integral annular seepage material; (2) annular permeable layer 15 can be arranged inside and outside supporting network and fill seepage material in inside and outside supporting network interlayer; (3) annular permeable layer 15 is filled in the gravel material supported between water-permeable pipe and soil horizon.
Claims (4)
1. a geothermal energy central air-conditioning interconnection system shallow layer geothermal energy is with well conversion equipment, comprise water supply well and well lid, interior well casing and outer well tube, outlet pipe, return pipe and immersible pump, it is characterized in that: described outer well tube and interior well casing have multiple well casing section to be welded to form respectively, outer tube seal nipple is connected with between adjacent outer well tube section, or be connected again between seal of tube joint with adjacent outer well tube section outside and compensate connector, the inwall relevant position of described outer tube joint for sealing connecting is provided with rubber ring frustum, and the correspondence position on interior well casing outer wall arranges rubber cone sheet respectively, and the upper side of rubber cone sheet has additional metal backing, described rubber cone sheet can mate with the conical surface of rubber ring frustum and is set with and supports, the rubber cone sheet external diameter being positioned at lower floor is not more than upper rubber ring frustum internal diameter, outer well tube is sleeved on inside water supply well, and interior well casing is set in outer well tube center, and the tube wall of outer well tube between rubber ring frustum arranges permeable hole, outlet pipe carries below the waterline that immersible pump is lifted in interior well casing, and multiple return pipe to be drained between adjacent conical isolation supporting layer in region respectively.
2. geothermal energy central air-conditioning interconnection system shallow layer geothermal energy according to claim 1 is with well conversion equipment, it is characterized in that: taper isolation supporting layer arranges inside support ring in outer well tube inwall relevant position, and described rubber ring frustum is fixed on outside inside support ring.
3. geothermal energy central air-conditioning interconnection system shallow layer geothermal energy according to claim 1 is with well conversion equipment, it is characterized in that: be air heat-insulation layer between outlet pipe and interior well casing, or pour into heat-barrier material in the interlayer between outlet pipe and interior well casing and form thermal insulation layer, produce cold and hot exchange to avoid recharge water and water outlet.
4. geothermal energy central air-conditioning interconnection system shallow layer geothermal energy according to claim 1 is with well conversion equipment, it is characterized in that: between the borehole wall and outer well tube of water supply well, be provided with annular permeable layer, this annular permeable layer is integral annular seepage material, or annular permeable layer is provided with inside and outside supporting network and fills seepage material in inside and outside supporting network interlayer, or annular permeable layer is filled in the gravel material supported between water-permeable pipe and soil horizon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279484.8U CN204987289U (en) | 2015-05-04 | 2015-05-04 | Geothermal energy central air conditioning connection mode shallow layer geothermal energy is with well conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279484.8U CN204987289U (en) | 2015-05-04 | 2015-05-04 | Geothermal energy central air conditioning connection mode shallow layer geothermal energy is with well conversion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204987289U true CN204987289U (en) | 2016-01-20 |
Family
ID=55121654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520279484.8U Expired - Fee Related CN204987289U (en) | 2015-05-04 | 2015-05-04 | Geothermal energy central air conditioning connection mode shallow layer geothermal energy is with well conversion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204987289U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896618A (en) * | 2015-05-04 | 2015-09-09 | 河南润恒节能技术开发有限公司 | Connection type shallow layer geothermal energy same-well conversion device and method of geothermal energy central air-conditioning |
| CN113446743A (en) * | 2021-06-30 | 2021-09-28 | 北京市地质工程勘察院 | Open type heat exchange inner tube of geothermal well |
-
2015
- 2015-05-04 CN CN201520279484.8U patent/CN204987289U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896618A (en) * | 2015-05-04 | 2015-09-09 | 河南润恒节能技术开发有限公司 | Connection type shallow layer geothermal energy same-well conversion device and method of geothermal energy central air-conditioning |
| CN104896618B (en) * | 2015-05-04 | 2018-05-11 | 河南润恒节能技术开发有限公司 | Geothermal energy central air-conditioning interconnection system shallow layer geothermal energy is the same as well conversion equipment and method |
| CN113446743A (en) * | 2021-06-30 | 2021-09-28 | 北京市地质工程勘察院 | Open type heat exchange inner tube of geothermal well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104896618A (en) | Connection type shallow layer geothermal energy same-well conversion device and method of geothermal energy central air-conditioning | |
| CN103982961A (en) | Hose type water outlet and return device in same water source well for water source heat pump central air conditioner | |
| CN103983045B (en) | The water supply well hard pipe type of water-source heat-pump central air conditioner goes out with well, water recovery apparatus | |
| CN105352210A (en) | Shallow geothermal energy device with pumping and recharging in same well | |
| CN204987289U (en) | Geothermal energy central air conditioning connection mode shallow layer geothermal energy is with well conversion equipment | |
| CN201864235U (en) | Asphalt storage device | |
| CN104501463B (en) | Water-source heat-pump central air conditioner water supply well inside and outside integrative welding type is with well backflow device | |
| CN205137973U (en) | Device is recharged with well to shallow layer geothermal energy | |
| CN104501464B (en) | Inside-outside integral docking type same-well pumping and recharging device for water source well of water source heat pump type central air conditioning | |
| CN204404606U (en) | Water-source heat-pump central air conditioner water supply well inside and outside integrative dock is with well backflow device | |
| CN204574613U (en) | Water-source heat-pump central air conditioner water supply well inside and outside integrative welded type is with well backflow device | |
| CN204730370U (en) | The compensation shallow layer geothermal energy of geothermal energy central air-conditioning is with well conversion equipment | |
| CN207686662U (en) | Thermal-insulating sealing module occluder | |
| CN107447749B (en) | Heat exchange system based on deep buried pipe and energy pile and construction process | |
| CN104896634B (en) | The compensation shallow layer geothermal energy of geothermal energy central air-conditioning is the same as well conversion equipment | |
| CN211177478U (en) | Single-well circulating efficient heat exchange system | |
| CN203757931U (en) | Water source well hose type identical-well outlet water and backwater device for water source heat pump central air conditioner | |
| CN102102380A (en) | Layered extraction and recharging system for well with pumping and recharging | |
| CN203757893U (en) | Flat plate type sealing structure of identical-well outlet water and backwater device for water source heat pump central air conditioner | |
| CN203757895U (en) | Cone type sealing structure of identical-well outlet water and backwater device for water source heat pump central air conditioner | |
| CN215864111U (en) | Middle-deep layer same-well recharge balance heat extraction system | |
| CN203758086U (en) | Water source well hard pipe type identical-well outlet water and backwater device for water source heat pump central air conditioner | |
| CN203757894U (en) | Drum type sealing structure of identical-well outlet water and backwater device for water source heat pump central air conditioner | |
| CN103982957A (en) | Flat plate type seal structure of water outlet and return device in same well for water source heat pump central air conditioner | |
| CN107687714A (en) | A kind of mid-deep strata geothermal energy underground heat-exchanger rig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 |