CN110081637B - Ground pipe laying heat transfer system with adjustable heat exchange circuit - Google Patents
Ground pipe laying heat transfer system with adjustable heat exchange circuit Download PDFInfo
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- CN110081637B CN110081637B CN201910477368.XA CN201910477368A CN110081637B CN 110081637 B CN110081637 B CN 110081637B CN 201910477368 A CN201910477368 A CN 201910477368A CN 110081637 B CN110081637 B CN 110081637B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 238000004321 preservation Methods 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Road Paving Structures (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a buried pipe heat exchange system with an adjustable heat exchange loop, which comprises a first-stage water separator, a first-stage water collector, a plurality of second-stage water separators and a plurality of second-stage water collectors, wherein the first-stage water separators are connected with the first-stage water separators; the first-stage water separator and the second-stage water separator are respectively provided with a plurality of water outlets and a water inlet, and the plurality of water outlets on the first-stage water separator are respectively connected with the water inlets of the plurality of second-stage water separators through pipelines; the water inlets of the first-stage water collector are respectively connected with the water outlets of the second-stage water collectors through pipelines, and the outer walls of the pipelines at the water inlets of the second-stage water collectors are respectively provided with heat insulation layers; the water outlets of the secondary water separator are communicated with the water inlet end of a heat exchange unit formed by connecting a plurality of U-shaped buried pipes in parallel, and the water outlet end of the heat exchange unit is communicated with the water inlet of the secondary water collector. The invention has simple and novel structure and strong functionality, and can be flexibly applied.
Description
Technical Field
The invention relates to the technical field of geothermal energy utilization, in particular to a buried pipe heat exchange system with an adjustable heat exchange loop.
Background
The heat transfer performance of the buried pipe heat exchanger determines the heat exchange efficiency of the whole ground source heat pump system, and has great significance for adjusting the heat transfer quantity of the buried pipe heat exchanger. The geothermal resources in China are widely distributed and are quite rich, and the research on the buried pipe heat exchanger has wide application prospect and development value.
The common ground buried pipe heat exchanger cannot change the distance and depth of a heat exchange loop, and has single flexibility; the space between the inlet and outlet branch pipes of the buried pipe is very limited, so that the two pipes are in direct heat exchange due to mutual contact, or the heat exchange is indirectly carried out through backfill heat conduction between the buried pipes, and the phenomenon of thermal short circuit is generated.
Disclosure of Invention
The invention aims to provide a buried pipe heat exchange system with an adjustable heat exchange loop, so as to solve the problems in the background art.
In order to solve the technical problems, the invention adopts the following technical scheme: the ground buried pipe heat exchange system with the adjustable heat exchange loop comprises a first-stage water separator, a first-stage water collector, a plurality of second-stage water separators and a plurality of second-stage water collectors;
the first-stage water separator and the second-stage water separator are respectively provided with a plurality of water outlets and a water inlet, and the plurality of water outlets on the first-stage water separator are respectively connected with the water inlets of the plurality of second-stage water separators through pipelines;
the water inlets of the primary water collector are respectively connected with the water outlets of the secondary water collectors through pipelines, and heat preservation layers are arranged on the outer walls of the pipelines at the water inlets of the secondary water collectors;
the water outlets of the two-stage water separator are communicated with the water inlet end of a heat exchange unit formed by connecting a plurality of U-shaped buried pipes in parallel, and the water outlet end of the heat exchange unit is communicated with the water inlet of the two-stage water collector;
the U-shaped buried pipe in the heat exchange unit consists of an inlet branch pipe, an outlet branch pipe and a bypass pipe, one or more bypass pipes are communicated between the middle part of the inlet branch pipe and the middle part of the outlet branch pipe, and electromagnetic valves A are respectively arranged on the part of the pipe body below the intersection point of the inlet branch pipe and the bypass pipe and the pipe body of the bypass pipe 1 Electromagnetic valve A 2 The heat insulation board is vertically arranged between the inlet branch pipe and the outlet branch pipe of the U-shaped buried pipe, a plurality of pipe clamps are sequentially and uniformly arranged on the two side surfaces of the heat insulation board from top to bottom, and the two ends of each pipe clamp respectively clamp the pipe bodies of the inlet branch pipe and the outlet branch pipe.
Furthermore, the pipelines at the water outlets of the primary water separator are provided with electromagnetic valves B.
Further, the heat preservation layer is a polyurethane sleeve.
Furthermore, the pipelines at the water inlets of the primary water collector are provided with balance valves.
Further, the outer walls of the inlet branch pipe, the outlet branch pipe and the bypass pipe are provided with radial heat transfer fins.
The beneficial effects of the invention are as follows:
the inventionThe invention provides an adjustable buried pipe heat exchange system of a heat exchange loop, which has simple and novel structure, and is characterized in that a bypass pipe is arranged between an inlet branch pipe and an outlet branch pipe of a U-shaped buried pipe, and electromagnetic valves A are respectively arranged on the inlet branch pipe and the bypass pipe 1 Electromagnetic valve A 2 Electromagnetic valve A is controlled 1 Electromagnetic valve A 2 The switch can change the distance and depth of the heat exchange loop under the condition of constant water flow rate, thereby changing heat quantity, increasing the mode of adjusting heat exchange and improving the flexibility of adjusting heat exchange. In electromagnetic valve A 1 Opening electromagnetic valve A 2 When closed, the heat exchange loop is longest, the heat exchange amount is greatest, and the electromagnetic valve A is arranged at the bottom of the heat exchange loop 2 Opening electromagnetic valve A 1 On closing, the heat exchange loop is shortest and the heat exchange amount is smallest. Through the setting of heat insulating board, increase heat conduction thermal resistance, avoid the thermal short circuit phenomenon, realize high-efficient adiabatic. Through the arrangement of the heat preservation layer, heat loss is reduced.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic diagram of the structure of the present invention.
FIG. 2 is a top view of the fixing structure of the heat insulating plate and the inlet and outlet branch pipes of the U-shaped buried pipe.
In the figure: 1. the water separator comprises a first-stage water separator, a first-stage water collector, a second-stage water separator, a second-stage water collector, a heat-insulating layer, a U-shaped buried pipe, a bypass pipe, an electromagnetic valve A and a heat-insulating layer, wherein the first-stage water separator, the first-stage water collector, the second-stage water separator, the first-stage water separator, the second-stage water separator, the heat-insulating layer and the heat-insulating layer are sequentially arranged in sequence, the U-shaped buried pipe, the bypass pipe and the electromagnetic valve A are sequentially arranged in sequence, and the U-shaped buried pipe is sequentially arranged in sequence from the first-stage water separator to the second-stage water separator, the first-stage 1 9, electromagnetic valve A 2 10, a heat insulation plate, 11, a pipe clamp, 12, electromagnetic valves B,13 and a balance valve.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. 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.
As shown in fig. 1-2, the invention provides a buried pipe heat exchange system with an adjustable heat exchange loop, which comprises a primary water separator 1, a primary water collector 2, a plurality of secondary water separators 3 and a plurality of secondary water collectors 4.
The first-stage water separator 1 and the second-stage water separator 3 are respectively provided with a plurality of water outlets and a water inlet, and the plurality of water outlets on the first-stage water separator 1 are respectively connected with the water inlets of the plurality of second-stage water separators 3 through pipelines.
The water inlets of the primary water collector 1 are respectively connected with the water outlets of the secondary water collectors 4 through pipelines, the outer walls of the pipelines at the water inlets of the secondary water collectors 4 are respectively provided with a heat preservation layer 5, and the heat preservation layer 5 is made of polyurethane.
The water outlets of the secondary water separator 3 are communicated with the water inlet end of a heat exchange unit formed by connecting a plurality of U-shaped buried pipes 6 in parallel, and the water outlet end of the heat exchange unit is communicated with the water inlet of the secondary water collector 4.
In each heat exchange unit structure, one or more bypass pipes 7 are communicated between the middle part of an inlet branch pipe 61 and the middle part of an outlet branch pipe 62 of the U-shaped buried pipe 6, and electromagnetic valves A are respectively arranged on the part of the pipe body below the intersection point of the inlet branch pipe 61 and the bypass pipe 7 and the pipe body of the bypass pipe 7 1 8. Electromagnetic valve A 2 A thermal insulation board 10 is vertically arranged between an inlet branch pipe 61 and an outlet branch pipe 62 of the 9,U type buried pipe 6, a plurality of pipe clamps 11 are sequentially and uniformly arranged on two side surfaces of the thermal insulation board 10 from top to bottom, and two ends of each pipe clamp 11 respectively clamp pipe bodies of the inlet branch pipe 61 and the outlet branch pipe 62.
Electromagnetic valves B12 are arranged on the pipelines at the water outlets of the primary water collector 1, and balance valves 13 are arranged on the pipelines at the water inlets of the primary water collector 2. Meanwhile, the outer walls of the inlet branch pipe, the outlet branch pipe and the bypass pipe are provided with radial heat transfer fins, so that the heat conduction efficiency can be further improved, and geothermal resources can be better utilized.
The technical proposal of the invention is integrated, the structure is simple and novel, and the bypass pipe 7 and the inlet branch pipe 61 are arranged between the inlet branch pipe 61 and the outlet branch pipe 62 of the U-shaped buried pipe 6And electromagnetic valve A respectively arranged on the bypass pipe 7 1 8. Electromagnetic valve A 2 9, controlling the electromagnetic valve A 1 8. Electromagnetic valve A 2 9 on and off, under the condition that the water flow rate is unchanged, the distance and the depth of the heat exchange loop can be changed, so that the heat quantity is changed, the mode of adjusting the heat exchange is increased, and the flexibility of adjusting the heat exchange is improved. In electromagnetic valve A 1 8 open, electromagnetic valve A 2 9, when the valve is closed, the heat exchange loop is longest, the heat exchange amount is largest, and the electromagnetic valve A is arranged at the bottom of the valve 2 9 open, electromagnetic valve A 1 8, on closing, the heat exchange loop is shortest, and the heat exchange amount is smallest. By arranging the heat insulation plate 10, the heat conduction resistance is increased, the phenomenon of thermal short circuit is avoided, and high-efficiency heat insulation is realized. Meanwhile, the heat loss is reduced through the arrangement of the heat preservation layer 5.
The embodiments of the invention described above are not intended to limit the scope of the invention, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the following claims.
Claims (1)
1. The ground buried pipe heat exchange system with the adjustable heat exchange loop is characterized by comprising a first-stage water separator, a first-stage water collector, a plurality of second-stage water separators and a plurality of second-stage water collectors;
the first-stage water separator and the second-stage water separator are respectively provided with a plurality of water outlets and a water inlet, and the plurality of water outlets on the first-stage water separator are respectively connected with the water inlets of the plurality of second-stage water separators through pipelines;
the water inlets of the primary water collector are respectively connected with the water outlets of the secondary water collectors through pipelines, the outer walls of the pipelines at the water inlets of the secondary water collectors are respectively provided with an insulation layer, and the insulation layer is made of polyurethane sleeves;
the water outlets of the secondary water separator are communicated with the water inlet end of a heat exchange unit formed by connecting a plurality of U-shaped buried pipes in parallel, and the water outlet end of the heat exchange unit is communicated with the water inlet of the secondary water collector;
in each heat exchange unit structure, one or more bypass pipes are communicated between the middle part of an inlet branch pipe and the middle part of an outlet branch pipe of the U-shaped buried pipe, and electromagnetic valves A are respectively arranged on the part of the pipe body below the intersection point of the inlet branch pipe and the bypass pipe and the pipe body of the bypass pipe 1 Electromagnetic valve A 2 A plurality of pipe clamps are sequentially and uniformly arranged on the two side surfaces of the heat insulation plate from top to bottom, and the two ends of each pipe clamp respectively clamp the pipe bodies of the inlet branch pipe and the outlet branch pipe;
electromagnetic valves B are arranged on the pipelines at the water outlets of the primary water separator, and balance valves are arranged on the pipelines at the water inlets of the primary water collector; meanwhile, radial heat transfer fins are arranged on the outer walls of the inlet branch pipe, the outlet branch pipe and the bypass pipe, so that the heat conduction efficiency is further improved, and geothermal resources are better utilized;
through a bypass pipe arranged between an inlet branch pipe and an outlet branch pipe of the U-shaped buried pipe, and electromagnetic valves A respectively arranged on the inlet branch pipe and the bypass pipe 1 Electromagnetic valve A 2 Electromagnetic valve A is controlled 1 Electromagnetic valve A 2 The switch can change the distance and depth of the heat exchange loop under the condition of constant water flow rate, so that the heat quantity is changed, the mode of adjusting the heat exchange is increased, and the flexibility of adjusting the heat exchange is improved; in electromagnetic valve A 1 Opening electromagnetic valve A 2 When closed, the heat exchange loop is longest, the heat exchange amount is greatest, and the electromagnetic valve A is arranged at the bottom of the heat exchange loop 2 Opening electromagnetic valve A 1 On closing, the heat exchange loop is shortest, and the heat exchange quantity is smallest; through the arrangement of the heat insulation plate, the heat conduction resistance is increased, the phenomenon of thermal short circuit is avoided, and high-efficiency heat insulation is realized; meanwhile, heat loss is reduced through the arrangement of the heat preservation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910477368.XA CN110081637B (en) | 2019-06-03 | 2019-06-03 | Ground pipe laying heat transfer system with adjustable heat exchange circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910477368.XA CN110081637B (en) | 2019-06-03 | 2019-06-03 | Ground pipe laying heat transfer system with adjustable heat exchange circuit |
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| Publication Number | Publication Date |
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| CN110081637A CN110081637A (en) | 2019-08-02 |
| CN110081637B true CN110081637B (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910477368.XA Active CN110081637B (en) | 2019-06-03 | 2019-06-03 | Ground pipe laying heat transfer system with adjustable heat exchange circuit |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782293A (en) * | 2010-02-01 | 2010-07-21 | 长沙北极熊节能环保技术有限公司 | Multi-layer water separating and collecting device of ground source heat pump and series and parallel-connection ground pipe burying technique thereof |
| CN201757616U (en) * | 2010-08-04 | 2011-03-09 | 湖南凌天科技有限公司 | Anti-clogging buried pipe U-shaped joint |
| CN202188550U (en) * | 2011-07-27 | 2012-04-11 | 挪信能源技术（上海）有限公司 | Ground source heat pump system of solar energy auxiliary heat source |
| CN202486083U (en) * | 2012-03-30 | 2012-10-10 | 扬州大学 | Multifunctional ground source heat pump underground rock hot and cold response testing device |
| CN202734666U (en) * | 2012-07-18 | 2013-02-13 | 天津天地源科技发展有限公司 | Water power balance regulating system of buried pipe heat exchanger of ground source heat pump |
| CN206019044U (en) * | 2016-08-31 | 2017-03-15 | 河南浩源水利水电工程有限公司 | A kind of ground heat exchanger |
| WO2018014607A1 (en) * | 2016-07-18 | 2018-01-25 | 河海大学 | Combined cooling heating power diaphragm wall apparatus and construction method therefor |
| CN207214521U (en) * | 2017-09-26 | 2018-04-10 | 郑州大学综合设计研究院有限公司 | Multi-functional compound energy total system |
| CN209960801U (en) * | 2019-06-03 | 2020-01-17 | 安徽华冶新能源科技有限公司 | Ground buried pipe heat transfer system with adjustable heat transfer circuit |
-
2019
- 2019-06-03 CN CN201910477368.XA patent/CN110081637B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782293A (en) * | 2010-02-01 | 2010-07-21 | 长沙北极熊节能环保技术有限公司 | Multi-layer water separating and collecting device of ground source heat pump and series and parallel-connection ground pipe burying technique thereof |
| CN201757616U (en) * | 2010-08-04 | 2011-03-09 | 湖南凌天科技有限公司 | Anti-clogging buried pipe U-shaped joint |
| CN202188550U (en) * | 2011-07-27 | 2012-04-11 | 挪信能源技术（上海）有限公司 | Ground source heat pump system of solar energy auxiliary heat source |
| CN202486083U (en) * | 2012-03-30 | 2012-10-10 | 扬州大学 | Multifunctional ground source heat pump underground rock hot and cold response testing device |
| CN202734666U (en) * | 2012-07-18 | 2013-02-13 | 天津天地源科技发展有限公司 | Water power balance regulating system of buried pipe heat exchanger of ground source heat pump |
| WO2018014607A1 (en) * | 2016-07-18 | 2018-01-25 | 河海大学 | Combined cooling heating power diaphragm wall apparatus and construction method therefor |
| CN206019044U (en) * | 2016-08-31 | 2017-03-15 | 河南浩源水利水电工程有限公司 | A kind of ground heat exchanger |
| CN207214521U (en) * | 2017-09-26 | 2018-04-10 | 郑州大学综合设计研究院有限公司 | Multi-functional compound energy total system |
| CN209960801U (en) * | 2019-06-03 | 2020-01-17 | 安徽华冶新能源科技有限公司 | Ground buried pipe heat transfer system with adjustable heat transfer circuit |
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| CN110081637A (en) | 2019-08-02 |
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