CN112128998A - Hot water guiding device for deep buried pipe heat exchanger - Google Patents

Hot water guiding device for deep buried pipe heat exchanger Download PDF

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Publication number
CN112128998A
CN112128998A CN202011087552.2A CN202011087552A CN112128998A CN 112128998 A CN112128998 A CN 112128998A CN 202011087552 A CN202011087552 A CN 202011087552A CN 112128998 A CN112128998 A CN 112128998A
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China
Prior art keywords
ring body
heat exchanger
hot water
lower ring
water
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CN202011087552.2A
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Chinese (zh)
Inventor
李心亮
刘建超
周竹军
杨永伟
葛占雨
魏艳辉
刘铮
康建龙
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Ceec Energy China North China Electric Power Test Research Institute Co ltd
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Ceec Energy China North China Electric Power Test Research Institute Co ltd
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Priority to CN202011087552.2A priority Critical patent/CN112128998A/en
Publication of CN112128998A publication Critical patent/CN112128998A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • F24T10/10Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13Geothermal 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
    • F24T10/17Geothermal 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention relates to a hot water guiding device for a deep buried pipe heat exchanger, which comprises an upper ring body and a lower ring body, wherein the upper ring body is connected with a water taking inner pipe, the lower ring body is positioned at the inner bottom of an outer pipe, the bottom surface of the lower ring body is placed at the bottom plugging end of the outer pipe, a plurality of vertical arc plates which are uniformly distributed on the circumference are connected between the upper ring body and the lower ring body, the upper ends of the arc plates are fixedly connected with the bottom surface of the upper ring body, the lower ends of the arc plates are fixedly connected with the top surface of the lower ring body, the diameter of the upper ring body is smaller than that of the lower. The invention has simple structure, low cost, small circulation resistance and higher water outlet temperature, meets the water taking requirement, improves the water taking effect, can stabilize the water outlet pipe, saves the power consumption for water taking, and achieves the aim of energy-saving, high-efficiency and safe water taking.

Description

Hot water guiding device for deep buried pipe heat exchanger
Technical Field
The invention relates to the technical field of deep buried pipe heat exchangers, in particular to a hot water guiding device for a deep buried pipe heat exchanger.
Background
The heat exchanger for middle-deep layer of ground rock is a device for indirectly extracting heat of underground soil, rock stratum and geotherm ore. The heat energy in the underground depth is led out by the conduction of the heat exchanger, and the heat is supplied to the ground building through a special equipment system. The heat exchanger for the middle and deep layer of the ground rock does not directly extract underground water, does not have the problem of tail water recharging, and extracts heat in hot rock in a heat exchange mode to replace a shallow ground source well and a middle and deep layer of hot water wells.
The backwater entering the heat exchanger of the middle-deep stratum is gradually heated by soil, hot fluid and rocks outside the heat exchanger in the process that the outside of the water taking inner pipe flows downwards, and reaches the highest temperature when reaching the bottom. The water intake inner pipe made of heat insulating material guides out the hot water for users to use, thus forming closed circulation.
The water intaking inner tube is with hot water derivation back heat supply user utilization, equipartition trompil method on the intake pipe that adopts at present stage, the water flow resistance is big, relative length is higher, the vibration of intake pipe easily takes place when hot water is derived, influence intake pipe safe handling, and the top is far away from bottom high temperature section, derive the water of lower temperature easily, the highest hot water of bottom temperature can't be guaranteed and derived, the heat transfer effect that leads to the ground heat exchanger is lower, and increase the power consumption cost, guarantee the highest hot water safety and stability of bottom temperature and derive after using this device.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a hot water guiding device for a deep buried pipe heat exchanger.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a hot water diverting device for deep buried pipe heat exchanger, including the lower ring body that is used for with the last ring body of water intaking inner tube coupling and is located the outer tube bottom, lower ring body bottom surface is placed in outer tube bottom shutoff end, it has the vertical arc of a plurality of circumference equipartitions to go up to link between ring body and the lower ring body, the upper end and the last ring body bottom surface fixed connection of arc, lower extreme and lower ring body top surface fixed connection, the diameter of going up the ring body is less than the diameter of ring body down, the arc is the hyperbola shaped plate, and the arc middle part is the direction bending of ring body axis up, lower ring body bottom surface is equipped with a plurality of spacing ground thorns that are used for, ground thorns insert outer.
The upper ring body and the lower ring body are coaxial.
The height of the upper ring body is 30 mm.
The height of the lower ring body is 20 mm.
The diameter of the upper ring body is 110 mm.
The diameter of the lower ring body is 178 mm.
The height of the arc-shaped plate is 200 mm.
The ground thorn is in the shape of an inverted cone.
The number of the ground thorns is 3, and the ground thorns are uniformly distributed on the bottom surface of the lower ring body in the circumference.
The distance between the outer wall of the lower ring body 2 and the inner wall of the outer pipe 5 is 1-2 mm.
The invention has the beneficial effects that: the invention has simple structure, low cost, small circulation resistance and higher water outlet temperature, meets the water taking requirement, improves the water taking effect, can stabilize the water outlet pipe, saves the power consumption for water taking, and achieves the aim of energy-saving, high-efficiency and safe water taking.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a state diagram of the present invention in use;
in the figure: 1-an upper ring body; 2-lower ring body; 3-arc-shaped plates; 4-inner tube for water intake; 5-an outer tube; 6-ground thorns; 7-a water outlet pipe; 8-a pressure relief valve; 9-an exhaust valve; 10-flow equalizing plate; 11-a water inlet pipe;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1-2, a hot water guiding device for deep buried pipe heat exchanger, including the last ring body 1 that is used for being connected with water intaking inner tube 4 and the lower ring body 2 that is located the 5 inner bottoms of outer tube, the lower ring body 2 bottom surface is placed in 5 bottom shutoff ends of outer tube, even have the vertical arc 3 of a plurality of circumference equipartitions between last ring body 1 and the lower ring body 2, the upper end and the 1 bottom surface fixed connection of last ring body of arc 3, lower extreme and 2 top surface fixed connection of lower ring body, the diameter of going up ring body 1 is less than the diameter of lower ring body 2, arc 3 is the hyperbola shaped plate, and the direction of ring body 1 axis is crooked upwards in the 3 middle part of arc, lower ring body 2 bottom surface is equipped with a plurality of ground thorn 6 that are used for spacing, ground thorn 6 inserts 5 bottom.
The upper ring body 1 and the lower ring body 2 are coaxial.
The height of the upper ring body 1 is 30 mm.
The height of the lower ring body 2 is 20 mm.
The diameter of the upper ring body 1 is 110 mm.
The diameter of the lower ring body 2 is 178 mm.
The height of the arc-shaped plate 3 is 200 mm.
The ground thorns 6 are inverted cones, the number of the ground thorns 6 is 3, and the ground thorns are circumferentially and uniformly distributed on the bottom surface of the lower ring body 2. The distance between the outer wall of the lower ring body 2 and the inner wall of the outer pipe 5 is 1-2 mm, the distance is convenient for the water taking inner pipe 4 to smoothly fall to the bottom of the outer pipe 5 when placed, the positioning effect of the water taking inner pipe 4 in the outer pipe 5 is achieved, the water taking inner pipe 4 is prevented from vibrating greatly, the ground thorns 6 can be firmly fixed at the plugging end of the outer pipe 5 through the arrangement of the ground thorns 6, the water taking inner pipe 4 is further prevented from vibrating greatly, the bottom of the outer pipe 5 is generally plugged by well cementing materials during construction, and the plugging formed by the well cementing materials is convenient for the insertion of the ground thorns 6 when the plugging.
When the device works, the device is simple in structure and low in cost, the gap between two adjacent arc plates 3 is large, the arc plates 3 are hyperbolic curves, the resistance of the arc plates 3 in the hyperbolic shapes is small, the circulation resistance is small, the resistance is smaller than that of an existing water taking inner tube 4 by an evenly-distributed hole forming method, the resistance is smaller than 3000Pa, the water outlet temperature is higher, and the temperature is higher than that of an existing water taking inner tube 4 by an evenly-distributed hole forming method, so that the water outlet temperature is higher, the water taking requirement is met, the water taking effect is improved, the water outlet tube 7 can be stabilized, the water taking power consumption is saved, and the purpose of energy-saving, efficient and safe water taking is achieved.
Example 1
A hot water guiding device for a deep buried pipe heat exchanger comprises an upper ring body 1 connected with a water taking inner pipe 4 and a lower ring body 2 positioned at the bottom in an outer pipe 5, wherein the upper ring body 1 and the lower ring body 2 are coaxial. Lower 2 bottom surfaces of ring bodies and the laminating of 5 bottom shutoff ends of outer tube, even have the vertical arc 3 of a plurality of circumference equipartitions between the ring body 1 and the lower ring body 2, the upper end of arc 3 with go up 1 bottom surface fixed connection of ring body, lower extreme and 2 top surface fixed connection of ring body down, the diameter of going up ring body 1 is less than the diameter of ring body 2 down, arc 3 is the hyperbola shaped plate, and the 3 middle parts of arc are the direction bending of ring body 1 axis up, ground thorn 6 is the cone of invering, the number of ground thorn 6 is 3, and the circumference equipartition is ring body 2 bottom surfaces down, interval between the outer wall of lower ring body 2 and the 5 inner walls of outer tube is 1 ~ 2 mm.
As shown in figure 2, the water taking device is arranged at the bottom of a water taking inner tube 4, the top surface of an upper ring body 1 is connected with the lower end of the water taking inner tube 4, the water taking inner tube 4 is positioned in an outer tube 5, the lower end of the outer tube 5 is blocked, a lower ring body 2 is attached to the bottom of the outer tube 5, the diameter of the lower ring body 2 is larger than that of the upper ring body 1, so that the stability of the water taking device in supporting the water taking inner tube 4 is improved, the upper end of the water taking inner tube 4 is connected with a water outlet tube 7, a water inlet tube 11 for water inlet is communicated with a cavity formed between the outer tube 5 and the water taking inner tube 4, switch valves are arranged on the water inlet tube 11 and the water outlet tube 7, a water pump is arranged on the water outlet tube 7, a seal head is arranged at.
When the water-saving water heater works, the water outlet end of the water inlet pipe 11 is positioned above the flow equalizing plate 10, water with lower temperature enters a cavity formed between the outer pipe 5 and the water taking inner pipe 4 through the water inlet pipe 11, and is gradually heated by soil, hot fluid and rocks outside the outer pipe 5 in the process of flowing downwards in the cavity, the temperature reaches the highest when the water reaches the bottom of the outer pipe 5, the water with higher temperature flows into the water taking inner pipe 4 through the water-saving water heater, the water pump works, hot water in the water taking inner pipe 4 is pumped into the water outlet pipe 7 and flows out through the water outlet pipe 7, and the hot water is supplied to a user for use.
Example 2
The utility model provides a hot water diverting device for deep buried pipe heat exchanger, including the lower ring body 2 that is used for the last ring body 1 of being connected with water intaking inner tube 4 and is located outer tube 5 bottom, the laminating of lower ring body 2 bottom surface and 5 bottom shutoff ends of outer tube, even have the vertical arc 3 of three circumference equipartition between last ring body 1 and the lower ring body 2, the upper end of arc 3 and 1 bottom surface fixed connection of last ring body, lower extreme and 2 top surface fixed connection of lower ring body, the diameter of going up ring body 1 is less than the diameter of lower ring body 2, arc 3 is the hyperbola shaped plate, and the direction bending of 3 middle parts of arc 1 axes of ring body up, ground thorn 6 is the cone of invering, the number of ground thorn 6 is 3, and the circumference equipartition is ring body 2 bottom surfaces down, the interval between the outer wall of lower ring body 2 and the 5 inner walls of outer tube is.
The upper ring body 1 and the lower ring body 2 are coaxial.
The height of the upper ring body 1 is 30 mm.
The height of the lower ring body 2 is 20 mm.
The diameter of the upper ring body 1 is 110 mm.
The diameter of the lower ring body 2 is 178 mm.
The height of the arc-shaped plate 3 is 200 mm.
Example 3
A hot water guiding device for a deep buried pipe heat exchanger comprises an upper ring body 1 connected with a water taking inner pipe 4 and a lower ring body 2 positioned at the bottom in an outer pipe 5, wherein the upper ring body 1 and the lower ring body 2 are coaxial. Lower 2 bottom surfaces of ring bodies and the laminating of 5 bottom shutoff ends of outer tube, even have the vertical arc 3 of three circumference equipartitions between the ring body 1 and the lower ring body 2, the upper end of arc 3 with go up 1 bottom surface fixed connection of ring body, lower extreme and 2 top surface fixed connection of ring body down, the diameter of going up ring body 1 is less than the diameter of ring body 2 down, arc 3 is the hyperbola shaped plate, and the 3 middle parts of arc are the direction bending of ring body 1 axis up, ground thorn 6 is the cone of invering, the number of ground thorn 6 is 3, and the circumference equipartition is in 2 bottom surfaces of ring body down.
As shown in figure 2, the invention is installed at the bottom of the water intake inner pipe 4, the top surface of the upper ring body 1 is connected with the lower end of the water intake inner pipe 4, the water intake inner pipe 4 is positioned in the outer pipe 5, the lower end of the outer pipe 5 is sealed, the lower ring body 2 is attached to the bottom of the outer pipe 5, the diameter of the lower ring body 2 is larger than that of the upper ring body 1, so that the stability of the invention when supporting the water intake inner pipe 4 is increased, a flow equalizing plate 10 is installed in the outer pipe 5, the flow equalizing plate 10 is fixedly connected with the inner wall of the outer pipe 5, the water outlet end of the water inlet pipe 11 is positioned above the flow equalizing plate 10, the upper end of the water intake inner pipe 4 passes through the flow equalizing plate 10 to be connected with the water outlet pipe 7, the water inlet pipe 11 for water inlet is communicated with the cavity formed between the outer pipe 5 and the water intake inner pipe, and the end socket is provided with a pressure relief valve 8 and an exhaust valve 9, the outer pipe 5 timely exhausts and relieves pressure, which is beneficial to improving the temperature of water in the outer pipe 5, when the water-saving water dispenser works, water with lower temperature enters a cavity formed between the outer pipe 5 and the water taking inner pipe 4 through the water inlet pipe 11, and is gradually heated by soil, hot fluid and rocks outside the outer pipe 5 in the process of flowing downwards in the cavity, the temperature is highest when the water reaches the bottom of the outer pipe 5, the water with higher temperature flows into the water taking inner pipe 4 through the water-saving water dispenser, the water pump works, hot water in the water taking inner pipe 4 is pumped into the water outlet pipe 7 and flows out through the water outlet pipe 7 to be used.
The invention has been described in connection with the accompanying drawings, it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, adaptations or uses of the invention, and all such modifications and variations are within the scope of the invention.

Claims (10)

1. A hot water guiding device for a deep buried pipe heat exchanger is characterized by comprising an upper ring body (1) connected with a water taking inner pipe (4) and a lower ring body (2) positioned at the bottom in an outer pipe (5), wherein the bottom surface of the lower ring body (2) is placed at the bottom plugging end of the outer pipe (5), a plurality of vertical arc plates (3) uniformly distributed on the circumference are connected between the upper ring body (1) and the lower ring body (2), the upper end of each arc plate (3) is fixedly connected with the bottom surface of the upper ring body (1), the lower end of each arc plate is fixedly connected with the top surface of the lower ring body (2), the diameter of the upper ring body (1) is smaller than that of the lower ring body (2), and each arc plate (3) is a hyperbolic plate, and the middle part of the arc-shaped plate (3) is bent towards the axis direction of the upward ring body (1), a plurality of ground thorns (6) used for limiting are arranged on the bottom surface of the lower ring body (2), and the ground thorns (6) are inserted into the bottom plugging end of the outer tube (5).
2. A hot water conductor arrangement for a deep ground borehole heat exchanger according to claim 1, characterised in that the upper ring (1) and the lower ring (2) are coaxial.
3. A hot water conductor for a deep ground borehole heat exchanger according to claim 1, wherein the height of the upper annulus (1) is 30 mm.
4. A hot water conductor for a deep ground borehole heat exchanger according to claim 1, wherein the lower annulus (2) has a height of 20 mm.
5. A hot water conductor for a deep ground borehole heat exchanger according to claim 1, wherein the diameter of the upper annulus (1) is 110 mm.
6. A hot water conductor for a deep ground borehole heat exchanger according to claim 1, wherein the diameter of the lower annulus (2) is 178 mm.
7. A hot water conductor arrangement for a deep ground borehole heat exchanger according to claim 1, characterised in that the height of the arcuate plate (3) is 200 mm.
8. A hot water conductor arrangement for a deep ground heat exchanger according to claim 1 wherein the ground spike (6) is of inverted conical shape.
9. A hot water discharge apparatus for a deep ground heat exchanger according to claim 8 wherein the number of the ground spurs (6) is 3 and the spurs are circumferentially equispaced at the bottom of the lower ring body (2).
10. The hot water discharge apparatus for a deep buried pipe heat exchanger according to claim 1 wherein the distance between the outer wall of the lower ring body (2) and the inner wall of the outer pipe (5) is 1 to 2 mm.
CN202011087552.2A 2020-10-13 2020-10-13 Hot water guiding device for deep buried pipe heat exchanger Pending CN112128998A (en)

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Application Number Priority Date Filing Date Title
CN202011087552.2A CN112128998A (en) 2020-10-13 2020-10-13 Hot water guiding device for deep buried pipe heat exchanger

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Application Number Priority Date Filing Date Title
CN202011087552.2A CN112128998A (en) 2020-10-13 2020-10-13 Hot water guiding device for deep buried pipe heat exchanger

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Publication Number Publication Date
CN112128998A true CN112128998A (en) 2020-12-25

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017096095A (en) * 2016-12-28 2017-06-01 三谷セキサン株式会社 Method for burying heat exchange pipe for underground heat
CN108180664A (en) * 2017-12-29 2018-06-19 东南大学 A kind of pipe-sinking device of mid-deep strata geothermal well
JP2020067027A (en) * 2018-10-24 2020-04-30 耕二 盛田 Geothermal power generation system using underground heat exchanger
CN213395991U (en) * 2020-10-13 2021-06-08 中国能源建设集团华北电力试验研究院有限公司 Hot water guiding device for deep buried pipe heat exchanger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017096095A (en) * 2016-12-28 2017-06-01 三谷セキサン株式会社 Method for burying heat exchange pipe for underground heat
CN108180664A (en) * 2017-12-29 2018-06-19 东南大学 A kind of pipe-sinking device of mid-deep strata geothermal well
JP2020067027A (en) * 2018-10-24 2020-04-30 耕二 盛田 Geothermal power generation system using underground heat exchanger
CN213395991U (en) * 2020-10-13 2021-06-08 中国能源建设集团华北电力试验研究院有限公司 Hot water guiding device for deep buried pipe heat exchanger

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