CN114017934B - Self-sealing device for bottom of coaxial double-pipe heat exchanger - Google Patents
Self-sealing device for bottom of coaxial double-pipe heat exchanger Download PDFInfo
- Publication number
- CN114017934B CN114017934B CN202111094496.XA CN202111094496A CN114017934B CN 114017934 B CN114017934 B CN 114017934B CN 202111094496 A CN202111094496 A CN 202111094496A CN 114017934 B CN114017934 B CN 114017934B
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- tube
- pipe
- heat exchanger
- outer tube
- self
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- 238000007789 sealing Methods 0.000 title claims abstract description 22
- 239000007787 solid Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
- F24T10/17—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes closed at one end, i.e. return-type tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
- F28F11/02—Arrangements for sealing leaky tubes and conduits using obturating elements, e.g. washers, inserted and operated independently of each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T2010/50—Component parts, details or accessories
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a self-sealing device for the bottom of a coaxial double-pipe heat exchanger, which comprises an outer pipe and an inner pipe, wherein a drainage hole is arranged on the inner pipe, the inner pipe is inserted into the outer pipe and can slide up and down in the outer pipe, a connector is arranged at the lower end of the outer pipe, a through hole for the inner pipe to pass through is arranged in the connector, a fixed ring is arranged on the inner wall of the outer pipe, a fixed pipe is arranged between the fixed ring and the connector, the inner pipe is inserted into the fixed pipe, the lower end of the inner pipe extends out of the outer pipe and is fixedly provided with a plug.
Description
Technical Field
The invention relates to the technical field of ground source heat pumps, in particular to a self-sealing device for a tube bottom of a coaxial double-tube heat exchanger.
Background
Geothermal energy has the characteristics of cleanness, environmental protection, good stability, recycling and the like, is a real and competitive renewable energy source, and along with the development and progress of society, people find that deep geothermal energy reserves are rich, the deep geothermal energy reserves have extremely large exploitation and utilization spaces, a double-U-shaped pipe is adopted for a refrigeration working condition heat exchanger of a medium-deep double-temperature ground source heat pump system, a heating working condition heat exchanger is converted into a coaxial sleeve form, the sealing performance of the bottom of the pipe of the coaxial sleeve heat exchanger of the traditional medium-deep ground source heat pump system is poor, the self-plugging function is not provided, the integral operation of the system is influenced, and the use is inconvenient.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a self-sealing device for the bottom of a coaxial sleeve heat exchanger, which solves the problem of poor tightness of the bottom of the coaxial sleeve of the prior ground source heat pump.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a coaxial double-pipe heat exchanger tube end self-sealing device, includes outer tube and inner tube, be equipped with the drainage hole on the inner tube, the inner tube inserts the outer tube inside and can be in slide from top to bottom in the outer tube, the outer tube lower extreme is equipped with the connector, be equipped with in the connector and supply the through-hole that the inner tube passed, the outer tube inner wall is equipped with solid fixed ring, gu fixed ring with install the fixed pipe between the connector, the inner tube inserts in the fixed pipe, the outer tube is stretched out to the inner tube lower extreme and fixed mounting has the end cap.
Preferably, a conical step is arranged above the plug, and an inverted conical groove matched with the conical step is formed in the lower wall of the connector.
Preferably, a sealing ring is arranged in the inverted cone groove.
Preferably, the connector is formed by integrally forming an upper cylindrical section, a round platform section and a lower cylindrical section.
Preferably, the outer wall of the inner tube is provided with a heat-insulating coating.
Preferably, the outer tube is coaxial with the axis of the inner tube.
Preferably, the inner wall of the outer tube is provided with internal threads.
Advantageous effects
The invention discloses a self-sealing device for the bottom of a coaxial double-pipe heat exchanger, which has the following beneficial effects: the device is used for plugging the bottom of the tube of the coaxial sleeve heat exchanger of the ground source heat pump system, has a compact structure, is matched with the conical step above the plug through the inverted cone groove at the lower end of the connector, enables the inverted cone groove to be pressed above the plug under the action of water pressure, realizes self-plugging, and further improves the sealing effect by arranging the sealing ring in the inverted cone groove, thereby bringing convenience to the use of people.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. an outer tube; 2. an inner tube; 3. drainage holes; 4. a connecting body; 401. an upper cylindrical section; 402. a circular table section; 403. a lower cylindrical section; 5. a fixing ring; 6. a fixed tube; 7. a plug; 8. a conical step; 9. a back taper groove; 10. and (3) sealing rings.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a coaxial double-pipe heat exchanger tube bottom self-sealing device, includes outer tube 1 and inner tube 2, be equipped with drainage hole 3 on the inner tube 2, inner tube 2 inserts inside outer tube 1 and can slide from top to bottom in outer tube 1, outer tube 1 lower extreme is equipped with connector 4, be equipped with in the connector 4 and supply the through-hole that inner tube 2 passed, outer tube 1 inner wall is equipped with solid fixed ring 5, gu fixed ring 5 with install between the connector 4 fixed tube 6, inner tube 2 inserts in the fixed tube 6, inner tube 2 lower extreme stretches out outer tube 1 and fixed mounting has end cap 7; a conical step 8 is arranged above the plug 7, and a reverse conical groove 9 matched with the conical step 8 is arranged on the lower wall of the connector 4; a sealing ring 10 is arranged in the inverted cone groove 9; the connector 4 is formed by integrally forming an upper cylindrical section 401, a round platform section 402 and a lower cylindrical section 403; the outer wall of the inner tube 2 is provided with a heat-insulating coating; the outer tube 1 is coaxial with the axis of the inner tube 2; the inner wall of the outer tube 1 is provided with an internal thread.
The components in this case are connected in sequence by a person skilled in the art, and specific connection and operation sequence should be referred to the following working principle, and the detailed connection means are known in the art, and the following working principle and process are mainly described.
Examples: the utility model provides a coaxial double-pipe heat exchanger tube bottom self-sealing device, including outer tube 1 and inner tube 2, be equipped with drainage hole 3 on the inner tube 2, inner tube 2 inserts inside outer tube 1 and can slide from top to bottom in outer tube 1, outer tube 1 lower extreme is equipped with connector 4, be equipped with the through-hole that supplies inner tube 2 to pass in the connector 4, outer tube 1 inner wall is equipped with solid fixed ring 5, install solid fixed pipe 6 between solid fixed ring 5 and the connector 4, inner tube 2 inserts in solid fixed pipe 6, inner tube 2 lower extreme stretches out outer tube 1 and fixed mounting has end cap 7; a conical step 8 is arranged above the plug 7, and an inverted conical groove 9 matched with the conical step 8 is arranged on the lower wall of the connector 4; a sealing ring 10 is arranged in the inverted cone groove 9; the connecting body 4 is formed by integrally forming an upper cylindrical section 401, a round platform section 402 and a lower cylindrical section 403; the outer wall of the inner tube 2 is provided with a heat-insulating coating; the axis of the outer tube 1 and the axis of the inner tube 2 are coaxial; the inner wall of the outer tube 1 is provided with an internal thread;
When the heat exchange device is used, a circulating medium is input into the outer tube 1, flows in the gap between the outer tube 1 and the inner tube 2, presses the fixed ring 5 through self gravity, makes the connector 4 descend, presses and buckles the inverted cone groove 9 at the lower end of the connector 4 on the conical step 8 above the plug 7, realizes self-plugging, and then the circulating medium after heat exchange enters the inner tube 2 through the drainage hole 3 and flows out through the inner tube 2, so that the heat exchange device is convenient to use.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a coaxial double-pipe heat exchanger tube bottom self-sealing device, includes outer tube (1) and inner tube (2), be equipped with drainage hole (3) on inner tube (2), its characterized in that, inner tube (2) insert inside outer tube (1) and can be in the inside upper and lower slip of outer tube (1), outer tube (1) lower extreme is equipped with connector (4), be equipped with in connector (4) and supply the through-hole that inner tube (2) passed, outer tube (1) inner wall is equipped with solid fixed ring (5), gu fixed ring (5) with install between connector (4) fixed tube (6), inner tube (2) insert in fixed tube (6), outer tube (1) and fixed mounting have end cap (7) are stretched out to inner tube (2) lower extreme;
A conical step (8) is arranged above the plug (7), and an inverted conical groove (9) matched with the conical step (8) is formed in the lower wall of the connecting body (4);
A sealing ring (10) is arranged in the inverted cone groove (9).
2. The self-sealing device for the bottom of the coaxial double-pipe heat exchanger tube according to claim 1, wherein the connecting body (4) is integrally formed by an upper cylindrical section (401), a round platform section (402) and a lower cylindrical section (403).
3. The self-sealing device for the bottom of the coaxial double-pipe heat exchanger according to claim 1, wherein the outer wall of the inner pipe (2) is provided with a heat-insulating coating.
4. A coaxial double-pipe heat exchanger tube bottom self-sealing device according to claim 1, characterized in that the outer pipe (1) is coaxial with the axis of the inner pipe (2).
5. A coaxial double-pipe heat exchanger tube bottom self-sealing device according to claim 3, characterized in that the inner wall of the outer tube (1) is provided with an internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111094496.XA CN114017934B (en) | 2021-09-17 | 2021-09-17 | Self-sealing device for bottom of coaxial double-pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111094496.XA CN114017934B (en) | 2021-09-17 | 2021-09-17 | Self-sealing device for bottom of coaxial double-pipe heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114017934A CN114017934A (en) | 2022-02-08 |
| CN114017934B true CN114017934B (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111094496.XA Active CN114017934B (en) | 2021-09-17 | 2021-09-17 | Self-sealing device for bottom of coaxial double-pipe heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114017934B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118705760B (en) * | 2024-08-23 | 2024-11-05 | 山东省国土空间生态修复中心(山东省地质灾害防治技术指导中心、山东省土地储备中心) | Medium-deep non-interference geothermal well heat exchange device |
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| CN104374121A (en) * | 2014-12-03 | 2015-02-25 | 北京中科华誉能源技术发展有限责任公司 | Large-diameter steel sleeve heat exchange device capable of extracting geothermal energy |
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| EP3239453A1 (en) * | 2008-02-22 | 2017-11-01 | Raymond J. Roussy | A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit |
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| CN212299509U (en) * | 2020-06-08 | 2021-01-05 | 苏州大学 | Medium-deep casing type buried tube heat exchanger |
| CN212299510U (en) * | 2020-09-04 | 2021-01-05 | 河北工程大学 | A coaxial casing heat exchanger used in medium-deep formation boreholes |
| CN213685798U (en) * | 2020-09-24 | 2021-07-13 | 江苏鑫达建设工程有限公司 | Leakage test plugging device for drainage pipeline |
-
2021
- 2021-09-17 CN CN202111094496.XA patent/CN114017934B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200971776Y (en) * | 2006-03-07 | 2007-11-07 | 蒯泽明 | Thermal insulation underground multi-stage compensation for oil field gas injection well |
| EP3239453A1 (en) * | 2008-02-22 | 2017-11-01 | Raymond J. Roussy | A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit |
| CN103322373A (en) * | 2013-03-15 | 2013-09-25 | 青岛科技大学 | Pressured plugging device for stolen hole of oil pipe |
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| CN107166137A (en) * | 2017-07-05 | 2017-09-15 | 中国石油大学(北京) | Geothermal well double-layered vacuum heat-insulation structure and its application method |
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| Publication number | Publication date |
|---|---|
| CN114017934A (en) | 2022-02-08 |
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