CN108613424A - Enhance closed mid-deep strata imbedded pipe heat-exchanging system - Google Patents
Enhance closed mid-deep strata imbedded pipe heat-exchanging system Download PDFInfo
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- CN108613424A CN108613424A CN201810552787.0A CN201810552787A CN108613424A CN 108613424 A CN108613424 A CN 108613424A CN 201810552787 A CN201810552787 A CN 201810552787A CN 108613424 A CN108613424 A CN 108613424A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 267
- 230000002708 enhancing effect Effects 0.000 claims abstract description 22
- 238000004321 preservation Methods 0.000 claims description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of closed mid-deep strata imbedded pipe heat-exchanging systems of enhancing.It solves the technical problems such as existing underground pipe heat exchange efficiency is low.Including return water vertical shaft, water exit shaft, return water vertical tube and water outlet vertical tube, return water vertical tube upper end is backwater end, it is water outlet to be discharged vertical tube upper end, return water vertical shaft lower end is equipped at least one return water horizontal well, water exit shaft lower end is equipped at least one water outlet horizontal well, water outlet horizontal well and return water horizontal well are mutually parallel and shift to install, the return water horizontal transverse-pipe being connected with return water vertical tube is equipped in return water horizontal well, the water outlet horizontal transverse-pipe being connected with water outlet vertical tube is equipped in water outlet horizontal well, it is equipped with branch pipe connectivity structure between return water horizontal transverse-pipe and water outlet horizontal transverse-pipe.Advantage is：Increase the heat exchange area of pipe laying using horizontal transverse-pipe and horizontal branch pipe, system heat exchange amount can dramatically increase.Effective Insulation is taken, system heat losses can be prevented.
Description
Technical field
The invention belongs to geothermal energy equipment technical fields, and in particular to a kind of enhancing closed mid-deep strata imbedded pipe heat-exchanging system
System.
Background technology
Increasingly in short supply with traditional fossil energy, people are growing day by day to the worry of energy security, climate change, underground heat
The energy is also increasingly paid close attention to and is approved.In cold northern area, air-source and solar energy are influenced by local climate environment
Greatly, be using air-source and solar energy as heating heat source it is extremely unstable, and geothermal energy as a kind of green low-carbon, use it
Inexhaustible regenerative resource is increasingly taken seriously.Wherein, mid-deep strata geothermal energy is that hot application field is most valuable and potentiality
Source is primarily referred to as underground 2-3km, the heat resource that temperature contains in the stratum of 70-90 DEG C of even higher range.Mid-deep strata
Geothermal energy heat source is sufficient, and use value is high, not can cause environmental pollution, moreover it is possible to realize round-the-clock all the period of time application, have
The features such as green low-carbon, clean and safe, large storage capacity, distribution are extensively, stability is good, and in line with the original of not polluted underground water resource
Then, the closed mid-deep strata sleeve heat exchange in China has been greatly developed.Mid-deep strata bushing type earth source heat pump is by a bite
The well of deep layer exchanges heat, and is promoted again by ground-source heat pump host heating, is supplied to building end thermal energy.But so far, due to general
Lead to the individual well straight well that closed mid-deep strata sleeve heat exchange mode is, therefore heat exchange area is small, heat exchange efficiency is low；Barrel forms, thus it is interior
Pipe specification is small；Supply backwater temperature difference is small；So overall heat exchange amount is small.
Of the existing technology in order to solve the problems, such as, people have carried out long-term exploration, it is proposed that miscellaneous solution
Scheme.For example, Chinese patent literature discloses a kind of vertical double S-shaped underground heat exchanger for ground source heat pump [application number：
201120389804.7], including horizontal direction S type heat exchangers, vertical direction S type heat exchangers.Horizontal direction S type heat exchangers with hang down
Histogram is to S type heat exchangers in orthogonal space layout state.Double S types Buried heat exchangers are placed on the heat exchange well accomplished fluently in advance
It is interior, backfilling material is finally buried again, can be exchanged heat with the soil of surrounding.
Above structure mainly improves the heat exchange efficiency of individual well by two S-type heat exchangers, although than routine
Single U-shaped, double-U-shaped heat exchanger heat exchange efficiency has a certain upgrade, but it substantially still uses individual well to exchange heat, thus the program according to
So there is：The problems such as heat exchange area is small, heat exchange efficiency is low, supply backwater temperature difference is small, overall heat exchange amount is small.
Invention content
Regarding the issue above, the present invention provides a kind of reasonable design, improves the enhancing of the heat exchange area of pipe laying
Closed mid-deep strata imbedded pipe heat-exchanging system.
In order to achieve the above objectives, present invention employs following technical proposals：This closed mid-deep strata imbedded pipe heat-exchanging system, packet
The return water vertical shaft and water exit shaft that are vertically arranged and shift to install in the horizontal direction are included, is worn in the return water vertical shaft
There is the return water vertical tube for being internally provided with refrigerating medium, water outlet vertical tube is equipped in the water exit shaft, and the return water hangs down
Straight tube upper end is backwater end, and the water outlet vertical tube upper end is water outlet, and the return water vertical shaft lower end is equipped at least one
Horizontally disposed return water horizontal well, the water exit shaft lower end are equipped at least one and return water horizontal well and are located at same level
Water outlet horizontal well, and the water outlet horizontal well and return water horizontal well is mutually parallel and shifts to install, and the return water is horizontal
It is equipped with the return water horizontal transverse-pipe being connected with return water vertical tube in well, is equipped in the water outlet horizontal well vertical with water outlet
The water outlet horizontal transverse-pipe that pipe is connected, and being equipped between the return water horizontal transverse-pipe and water outlet horizontal transverse-pipe can be vertical by return water
Refrigerating medium in pipe is drained to water outlet horizontal transverse-pipe until being discharged the branch pipe connectivity structure of vertical tube through return water horizontal transverse-pipe.
The purpose of the present invention is making full use of horizontal transverse-pipe and branch pipe connectivity structure to increase the heat exchange area of pipe laying, to
Increase heat exchange amount.Return water vertical shaft is connected by return water horizontal well in the high-temperature stratum of subsurface certain depth, passes through water outlet
Water exit shaft is connected by horizontal well, and return water horizontal transverse-pipe and water outlet horizontal transverse-pipe and branch pipe connectivity structure are vertical by return water respectively
Pipe be connected to water outlet vertical tube, is fully taken in high-temperature stratum and high temperature refrigerating medium is sent to ground by water outlet vertical tube after heat
Produce stable heat source.
In the closed mid-deep strata imbedded pipe heat-exchanging system of above-mentioned enhancing, the return water vertical shaft lower end is set successively from up to down
There are several return water horizontal wells, each return water horizontal well is equidistantly arranged in parallel successively；The water exit shaft lower end is certainly
It is upper to be equipped with several water outlet horizontal wells being arranged in a one-to-one correspondence respectively with return water horizontal well, and each water outlet horizontal well successively downwards
It is equidistantly arranged in parallel successively, and any one return water horizontal well and corresponding water outlet horizontal well are located at same level
On.
In the closed mid-deep strata imbedded pipe heat-exchanging system of above-mentioned enhancing, the return water vertical shaft and water exit shaft depth phase
Together, and the return water horizontal well is successively set on respectively at 2400~3000 meters of return water vertical shaft lower end；The water outlet is horizontal
Well is successively set on respectively at 2400~3000 meters of water exit shaft lower end.
In the closed mid-deep strata imbedded pipe heat-exchanging system of above-mentioned enhancing, the branch pipe connectivity structure includes several setting respectively
The horizontal branch pipe between the return water horizontal transverse-pipe on horizontal plane and water outlet horizontal transverse-pipe is set, and the horizontal branch pipe is in
Straight tube-like or bent tube form, each horizontal branch pipe one end are connected with return water horizontal transverse-pipe, and the other end is and water outlet is horizontal
Transverse tube is connected.
In the closed mid-deep strata imbedded pipe heat-exchanging system of above-mentioned enhancing, the horizontal branch pipe distinguishes equidistant and phase successively
It is mutually arranged in parallel, and the return water horizontal transverse-pipe end and water outlet horizontal transverse-pipe end are respectively connected with horizontal branch pipe.
In the closed mid-deep strata imbedded pipe heat-exchanging system of above-mentioned enhancing, between the return water vertical shaft and return water vertical tube,
Between water exit shaft and water outlet vertical tube, between return water horizontal well and return water horizontal transverse-pipe and water outlet horizontal well and water outlet it is horizontal
It is connected respectively by cementing concrete between transverse tube.
In the closed mid-deep strata imbedded pipe heat-exchanging system of above-mentioned enhancing, the return water vertical tube upper end outer circumferential is equipped with
First insulating layer.
In the closed mid-deep strata imbedded pipe heat-exchanging system of above-mentioned enhancing, first insulating layer is arranged in return water vertical tube
It is extended within the scope of 600 meters by upper end top down.
In the closed mid-deep strata imbedded pipe heat-exchanging system of above-mentioned enhancing, the circumferential direction at water outlet vertical tube upper end to the middle part
Outside is equipped with the second insulating layer.
In the closed mid-deep strata imbedded pipe heat-exchanging system of above-mentioned enhancing, second insulating layer setting is in water outlet vertical tube
It is extended within the scope of 2400 meters by upper end top down.
Compared with prior art, the advantage of the invention is that：1, this system is only that heat is taken not fetch water to underground environment,
To groundwater environment without any pollution.2, this system increases changing for pipe laying in high-temperature stratum using horizontal transverse-pipe and horizontal branch pipe
This mode of hot area, and as the length of horizontal transverse-pipe and horizontal branch pipe changes, imbedded pipe heat-exchanging amount can be with tenfold or hundred
Variation again.System heat exchange amount can dramatically increase.It 3, can anti-locking system by taking effective Insulation to perpendicularly buried pipe
Thermal loss ensures the stabilization achievement of system high efficiency heat exchange.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the transverse sectional view of the present invention；
In figure, return water vertical shaft 1, refrigerating medium 3, return water vertical tube 4, backwater end 41, the first insulating layer 42, goes out water exit shaft 2
Water vertical tube 5, water outlet 51, the second insulating layer 52, return water horizontal well 6, water outlet horizontal well 7, return water horizontal transverse-pipe 8, water outlet water
Flat transverse tube 9, branch pipe connectivity structure 10, horizontal branch pipe 101, cementing concrete 102.
Specific implementation mode
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in Figs. 1-2, this closed mid-deep strata imbedded pipe heat-exchanging system, including be vertically arranged and in the horizontal direction
The return water vertical shaft 1 and water exit shaft 2 shifted to install, return water vertical shaft 1 here are identical with 2 depth of water exit shaft, it should be ensured that depth
It is equipped with the return water vertical tube 4 for being internally provided with refrigerating medium 3 in 3000 meters or more, return water vertical shaft 1, is equipped in water exit shaft 2
It is discharged vertical tube 5, and 4 upper end of return water vertical tube is backwater end 41,5 upper end of water outlet vertical tube is water outlet 51, wherein return water is perpendicular
1 lower end of well is equipped with several return water horizontal wells 6 successively from up to down, each return water horizontal well 6 is equidistantly mutually parallel and sets successively
Set, in order to acquire mid-deep strata geothermal source, return water horizontal well 6 here be successively set on respectively 1 lower end 2400 of return water vertical shaft~
At 3000 meters；For example, can be configured every 200 meters, 4 return water horizontal wells 6 are set within the scope of such 2400~3000 meters.
Likewise, 2 lower end of water exit shaft is equipped with several water outlet water being arranged in a one-to-one correspondence respectively with return water horizontal well 6 successively from up to down
Horizontal well 7, and each water outlet horizontal well 7 is equidistantly arranged in parallel successively, and be discharged horizontal well 7 and be successively set on out respectively
At 2400~3000 meters of 2 lower end of water vertical shaft.And any one return water horizontal well 6 and corresponding water outlet horizontal well 7 are positioned at same
Water outlet horizontal well 7 and return water horizontal well 6 on horizontal plane, and in same level are mutually parallel and shift to install, return water
It is equipped with the return water horizontal transverse-pipe 8 being connected with return water vertical tube 4 in horizontal well 6, is discharged to be equipped in horizontal well 7 and hang down with water outlet
The water outlet horizontal transverse-pipe 9 that straight tube 5 is connected, and being equipped between return water horizontal transverse-pipe 8 and water outlet horizontal transverse-pipe 9 can be vertical by return water
Refrigerating medium 3 in pipe 4 is drained to water outlet horizontal transverse-pipe 9 until being discharged the branch pipe connectivity structure of vertical tube 5 through return water horizontal transverse-pipe 8
10。
The purpose of the present invention is make full use of return water horizontal transverse-pipe 8 and water outlet horizontal transverse-pipe 9 and branch pipe connectivity structure 10
Increase the heat exchange area of pipe laying, to increasing heat exchange amount.Pass through return water level in the high-temperature stratum of subsurface certain depth
Return water vertical shaft 1 is connected by well 6, and water exit shaft 2 is connected by being discharged horizontal well 7, return water horizontal transverse-pipe 8 and water outlet horizontal transverse-pipe
9 and branch pipe connectivity structure 10 respectively by return water vertical tube 4 with water outlet vertical tube 5 be connected to, after fully taking heat in high-temperature stratum
High temperature refrigerating medium is sent to ground by water outlet vertical tube 5 and produces stable heat source.
Preferably, branch pipe connectivity structure 10 here includes that several return water being separately positioned on horizontal plane are horizontal horizontal
Horizontal branch pipe 101 between pipe 8 and water outlet horizontal transverse-pipe 9, and horizontal branch pipe 101 can be arranged in straight tube-like, as shown in Fig. 2,
Meanwhile each 101 one end of horizontal branch pipe is connected with return water horizontal transverse-pipe 8, the other end is connected with water outlet horizontal transverse-pipe 9
It is logical；Certainly, in order to improve heat exchange area and heat exchange efficiency, horizontal branch pipe 101 here can also be arranged in bending, for example, S
Type pipe, curved pipe etc..In order to improve the stability of heat exchange, horizontal branch pipe 101 here is equidistant successively respectively and is mutually parallel
Setting, and 8 end of return water horizontal transverse-pipe and 9 end of water outlet horizontal transverse-pipe are respectively connected with horizontal branch pipe 101.
Further, here between return water vertical shaft 1 and return water vertical tube 4, water exit shaft 2 and water outlet vertical tube 5 between, return
Pass through water of cementing the well respectively between water horizontal well 6 and return water horizontal transverse-pipe 8 and between water outlet horizontal well 7 and water outlet horizontal transverse-pipe 9
Mud 102 is connected, and is cemented the well with cementing concrete 102 between pipe laying and well, and 102 thermal coefficient of cementing concrete is higher to increase heat exchange
And there is well cementation effect.
The principle of the present embodiment is：In the high-temperature stratum of 2400~3000 meters of depths of subsurface by return water horizontal well 6,
Return water vertical shaft 1 is connected by water outlet horizontal well 7 with water exit shaft 2, return water horizontal transverse-pipe 8, water outlet horizontal transverse-pipe 9 and horizontal branch pipe
101 are connected return water vertical tube 4 with water outlet vertical tube 5, are fully taken in high-temperature stratum after heat by being discharged vertical tube 5 by high temperature
Refrigerating medium 3 is sent to ground and produces stable heat source.This method takes full advantage of return water horizontal transverse-pipe 8,9 and of water outlet horizontal transverse-pipe
Horizontal branch pipe 101 increases the heat exchange area of pipe laying, to increasing imbedded pipe heat-exchanging amount.The return water vertical shaft 1 of backwater end 41, water outlet
51 water exit shaft 2 and return water horizontal well 6 and water outlet horizontal well 7 forms a multilayer U-shaped well, and one is back-shaped at closing for one
Formula system loop, system take heat not fetch water to groundwater resources without any pollution destruction；And certain in excavation specification
Under the conditions of, the pipe laying caliber of facing sleeve heat-exchange system, this system is big, then flow is big, heat exchange amount is big；
When refrigerating medium 3 reaches high temperature ground 2400~3000 meters of depths of section in return water vertical tube 4, refrigerating medium 3 can divide multilayer
Horizontal branch pipe 101 is flowed into from return water horizontal transverse-pipe 8, then is converged into water outlet vertical tube 5 by corresponding water outlet horizontal transverse-pipe 9
Interior, this measure can greatly reinforce the contact area of pipe laying and Rock And Soil, and heat exchange contact surface is not solely restricted in a plane,
It has risen to herein in a solid space.And with return water horizontal transverse-pipe 8, water outlet horizontal transverse-pipe 9 and horizontal branch pipe 101
Length increase, imbedded pipe heat-exchanging amount can be with tenfold or hundred times of increase.
Wherein, 4 upper end outer circumferential of return water vertical tube here is equipped with the first insulating layer 42, and the setting of the first insulating layer 42 exists
Return water vertical tube 4 is extended to by upper end top down within the scope of 600 meters.When the refrigerating medium 3 of low temperature in 25~35 DEG C enters return water
When the return water vertical tube 4 at end 41,41 heat of backwater end is absorbed by middle-shallow layer Rock And Soil in order to prevent, and system thermal is prevented to scatter and disappear,
Heat preservation is carried out to first insulating layer 42 made of thermal insulation material of return water vertical tube 4 in 0~600 meter of depth
Further, the outer circumferential at water outlet 5 upper end of vertical tube to middle part here is equipped with the second insulating layer 52, excellent
Choosing, the setting of the second insulating layer 52 are extended to by upper end top down within the scope of 2400 meters in water outlet vertical tube 5.When refrigerating medium 3 from
When return water horizontal transverse-pipe 8 enters water outlet horizontal transverse-pipe 9 by horizontal branch pipe 101, refrigerating medium 3 summarizes going out to water outlet vertical tube 5
Water end (W.E.) 51, the water outlet vertical tube 5 of the water outlet 51 after heat preservation send high temperature refrigerating medium 3 to water outlet 51 into access customer.It carries
Cryogen 3 is after 95 DEG C of highest temperature-heat-source is produced in the interior heat exchange of 2400~3000 meters of deep spaces, to reduce system high temperature heat from heat source
Loss, is deep at 0 absolute altitude of ground second made of thermal insulation material the water outlet vertical tube 5 of water outlet 51 for 2400 meters from summarizing
Insulating layer 52 uses complete stroke thermal insulating measure.The closed mid-deep strata imbedded pipe heat-exchanging mode of such enhancing can accomplish ultra high efficiency heat exchange and
The purpose that heat zero loses.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although be used more herein return water vertical shaft 1, water exit shaft 2, refrigerating medium 3, return water vertical tube 4, backwater end 41,
First insulating layer 42, water outlet vertical tube 5, water outlet 51, the second insulating layer 52, return water horizontal well 6, water outlet horizontal well 7, return water water
The terms such as flat transverse tube 8, water outlet horizontal transverse-pipe 9, branch pipe connectivity structure 10, horizontal branch pipe 101, cementing concrete 102, but be not precluded
Use the possibility of other terms.The use of these items is only for more easily describe and explain the essence of the present invention；
They are construed to any one of the additional limitations and are all disagreed with spirit of that invention.
Claims (10)
1. a kind of closed mid-deep strata imbedded pipe heat-exchanging system, including vertically it is arranged and what is shifted to install in the horizontal direction returns
Water vertical shaft (1) and water exit shaft (2), the return water vertical shaft (1) is interior to be equipped with the return water vertical tube for being internally provided with refrigerating medium (3)
(4), water outlet vertical tube (5) is equipped in the water exit shaft (2), and described return water vertical tube (4) upper end is backwater end
(41), described water outlet vertical tube (5) upper end is water outlet (51), which is characterized in that described return water vertical shaft (1) lower end is equipped with
At least one horizontally disposed return water horizontal well (6), the water exit shaft (2) lower end are equipped at least one and return water horizontal well
(6) it is located at the water outlet horizontal well (7) of same level, and the water outlet horizontal well (7) and return water horizontal well (6) is mutually parallel
And shift to install, it is equipped with the return water horizontal transverse-pipe (8) being connected with return water vertical tube (4) in the return water horizontal well (6),
The water outlet horizontal transverse-pipe (9) being connected with water outlet vertical tube (5), and time are equipped in the water outlet horizontal well (7)
Being equipped between water horizontal transverse-pipe (8) and water outlet horizontal transverse-pipe (9) can be by the refrigerating medium (3) in return water vertical tube (4) through return water water
Flat transverse tube (8) is drained to water outlet horizontal transverse-pipe (9) until being discharged the branch pipe connectivity structure (10) of vertical tube (5).
2. enhancing closed mid-deep strata imbedded pipe heat-exchanging system according to claim 1, which is characterized in that the return water vertical shaft
(1) lower end is equipped with several return water horizontal wells (6) successively from up to down, each return water horizontal well (6) is equidistantly mutually flat successively
Row setting；Described water exit shaft (2) lower end is equipped with several corresponded respectively with return water horizontal well (6) and sets successively from up to down
The water outlet horizontal well (7) set, and each water outlet horizontal well (7) is equidistantly arranged in parallel successively, and any one return water
Horizontal well (6) and corresponding water outlet horizontal well (7) are located in same level.
3. enhancing closed mid-deep strata imbedded pipe heat-exchanging system according to claim 2, which is characterized in that the return water vertical shaft
(1) return water horizontal well (6) identical with water exit shaft (2) depth and described is successively set on return water vertical shaft (1) lower end respectively
At 2400~3000 meters；The water outlet horizontal well (7) is successively set on 2400~3000 meters of water exit shaft (2) lower end respectively
Place.
4. according to the closed mid-deep strata imbedded pipe heat-exchanging system of enhancing of claims 1 or 2 or 3, which is characterized in that the branch
Pipe connectivity structure (10) includes several return water horizontal transverse-pipes (8) being separately positioned on horizontal plane and water outlet horizontal transverse-pipe
(9) horizontal branch pipe (101) between, and the horizontal branch pipe (101) is in straight tube-like or bent tube form, each horizontal branch pipe
(101) one end is connected with return water horizontal transverse-pipe (8), and the other end is connected with water outlet horizontal transverse-pipe (9).
5. enhancing closed mid-deep strata imbedded pipe heat-exchanging system according to claim 4, which is characterized in that the horizontal branch pipe
(101) distinguish return water horizontal transverse-pipe (8) end equidistant and arranged in parallel and described successively and water outlet horizontal transverse-pipe
(9) end is respectively connected with horizontal branch pipe (101).
6. enhancing closed mid-deep strata imbedded pipe heat-exchanging system according to claim 4, which is characterized in that the return water vertical shaft
(1) between return water vertical tube (4), between water exit shaft (2) and water outlet vertical tube (5), return water horizontal well (6) and return water level
It is connected respectively by cementing concrete (102) between transverse tube (8) and between water outlet horizontal well (7) and water outlet horizontal transverse-pipe (9).
7. enhancing closed mid-deep strata imbedded pipe heat-exchanging system according to claim 4, which is characterized in that the return water is vertical
It manages (4) upper end outer circumferential and is equipped with the first insulating layer (42).
8. enhancing closed mid-deep strata imbedded pipe heat-exchanging system according to claim 7, which is characterized in that first heat preservation
Layer (42) setting is extended to by upper end top down within the scope of 600 meters in return water vertical tube (4).
9. enhancing closed mid-deep strata imbedded pipe heat-exchanging system according to claim 4, which is characterized in that the water outlet is vertical
The outer circumferential for managing (5) upper end to middle part is equipped with the second insulating layer (52).
10. enhancing closed mid-deep strata imbedded pipe heat-exchanging system according to claim 9, which is characterized in that described second protects
Warm layer (52) setting is extended to by upper end top down within the scope of 2400 meters in water outlet vertical tube (5).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076435A (en) * | 2019-12-13 | 2020-04-28 | 西安科技大学 | Underground multi-loop heat exchange method for geothermal well |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111076435A (en) * | 2019-12-13 | 2020-04-28 | 西安科技大学 | Underground multi-loop heat exchange method for geothermal well |
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