CN206300374U - The buried pipe device of mid-deep strata ground temperature composite mode heat exchange - Google Patents
The buried pipe device of mid-deep strata ground temperature composite mode heat exchange Download PDFInfo
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- CN206300374U CN206300374U CN201621145976.9U CN201621145976U CN206300374U CN 206300374 U CN206300374 U CN 206300374U CN 201621145976 U CN201621145976 U CN 201621145976U CN 206300374 U CN206300374 U CN 206300374U
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- heat exchange
- exchange tube
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- ground burying
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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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Abstract
The utility model provides a kind of mid-deep strata ground temperature composite mode buried pipe device of heat exchange, belongs to geothermal energy heat exchange heat transfer technical field.The utility model solves prior art device complex structure, and operation energy consumption is high, and heat exchange efficiency is low, and the technical problem for being easily caused surface subsidence or being constituted a threat to underground water source and polluted etc..It includes being embedded in the deep layer ground burying heat exchange tube in underground, the first heat-exchange working medium is filled with inside deep layer ground burying heat exchange tube and deep layer ground burying heat exchange tube two ends are connected with user side, at least one is provided with deep layer ground burying heat exchange tube upper end side to be embedded in underground and the middle level ground burying heat exchange tube filled with the second heat-exchange working medium, and middle level ground burying heat exchange tube two ends are connected with user side respectively, deep layer ground burying heat exchange tube is from up to down separated into soak zones and heat exchange area, and middle level ground burying heat exchange tube whole or is partially located in soak zones.The utility model has simple structure, and heat exchange efficiency is high, the advantages of the rate of geothermal utilization is high.
Description
Technical field
The utility model belongs to geothermal energy heat exchange heat transfer technical field, more particularly to one kind buried pipe device of heat exchange.
Background technology
Geothermal energy is a kind of huge clear energy sources of reserves, and the rational exploitation and utilization to geothermal energy is increasingly subject to people's
Favor.The deep geothermal heat technology of development and application, such as geothermal power generation, geothermal heating system, are by the natural steaming of subsurface storage mostly
Vapour or hot water are evacuated to ground and utilize from geothermal well, and efficiency is low, and of long duration can cause surface subsidence；According to recharging technique, and
Underground water source can be constituted a threat to and be polluted；Geothermal energy is deeply influenceed using by uncertain factors such as local geological conditions, is utilized
Scope is small, and technical conditions are harsh, and these problems all constrain application and development of the deep geothermal heat using technology, in order to wider
Using geothermal energy, above mentioned problem is overcome, need to seek better method.
For example, Chinese patent literature discloses a kind of geothermal heating system [application number：CN201110449856.3], including
Heat exchanger in geothermal well, is arranged in heat exchanger and passes the circulation closed heat conducting pipe of heat exchanger, heat conduction
Built with heat-conducting medium, the part that heat conducting pipe passes heat exchanger is arranged on the hot end surface of thermal generator to pipe, is placed in heat
One section of heat conducting pipe that exchanger is connected with thermal generator is provided with the output end of flowmeter and circulating pump, circulating pump and controller
It is connected, the input of controller is connected with the temperature sensor being arranged in heat exchanger；Thermal generator cold end is provided with cold
Water pipe, cold water pipe one end is connected with cold water pipe water filling port, and condenser and cold valves are provided between cold water pipe and cold water pipe water filling port,
Thermal generator is connected with battery.The utility model simplifies device structure, it is not necessary to the large-scale plant such as steam turbine, and does not have
There is environmental hazard.
Although such scheme solves prior art device challenge to a certain extent, structure is still excessively multiple
It is miscellaneous, and using multiple electronic units, easily break down；But also it is too low to there is geothermal energy utilization rate, heat transfer effect difference etc. lacks
Point does not result in ground, it is necessary to seek to be constituted a threat to underground water source while better method improves heat utilization ratio yet
The problem of sedimentation.
Utility model content
The purpose of this utility model is directed to above mentioned problem, there is provided a kind of mid-deep strata ground temperature composite mode heat exchange underground pipe dress
Put；Device structure existing for prior art is solved complicated, operation energy consumption is high, and heat exchange efficiency is low, for a long time using can cause
Surface subsidence or the technical problem for being constituted a threat to underground water source and being polluted etc..
To reach above-mentioned purpose, the utility model employs following technical proposal：Including the depth being embedded in underground
Layer ground burying heat exchange tube, be filled with inside described deep layer ground burying heat exchange tube the first heat-exchange working medium and deep layer ground burying heat exchange tube two ends with
User side is connected, and is provided with least one in deep layer ground burying heat exchange tube upper end side and is embedded in underground and is changed filled with second
The middle level ground burying heat exchange tube of hot working fluid, and described middle level ground burying heat exchange tube two ends are connected with user side respectively, described deep layer
Ground burying heat exchange tube is from up to down separated into soak zones and heat exchange area, and described middle level ground burying heat exchange tube is all or local position
In in soak zones.
This programme is compound by middle level ground burying heat exchange tube and deep layer ground burying heat exchange tube, accelerates heat transfer rate, can be more than enough logical
Road provides heat, makes full use of underground heat, and underground thermal source is collected by the heat exchange area of deep layer ground burying heat exchange tube, in
Layer ground burying heat exchange tube carries out secondary thermal-arrest using the heat that deep layer heat exchanger tube stays in soak zones, is hidden using underground in large quantities
Geothermal energy, improves geothermal energy utilization rate and heat exchange efficiency.
In above-mentioned mid-deep strata ground temperature composite mode exchanges heat buried pipe device, described deep layer ground burying heat exchange tube and middle level
Ground burying heat exchange tube is in vertically and shifts to install in Deep Underground, and described Deep Underground depth is 2000-4000 meters, institute
The near-bottom temperature of Deep Underground is stated for 60-150 degree, the length of described deep layer ground burying heat exchange tube is 2000-4000 meters, described
The length of middle level ground burying heat exchange tube is 400-600 meters, and the temperature of middle level ground burying heat exchange tube bottom outside is 10-20 degree, deep layer
Ground burying heat exchange tube is used to collect 60 --- 150 degree of temperature, for a long time for heat supply；Middle level ground burying heat exchange tube is used to collect 10-20
The temperature of degree, single middle level ground burying heat exchange tube can provide cold in the cooling phase, and the heat supply phase provides heat.
In above-mentioned mid-deep strata ground temperature composite mode exchanges heat buried pipe device, described deep layer ground burying heat exchange tube is from ground
400-600 meters of region is soak zones downwards, and the downward region of described deep layer ground burying heat exchange tube self-insurance temperature area is heat transfer zone
Domain.
In above-mentioned mid-deep strata ground temperature composite mode exchanges heat buried pipe device, described deep layer ground burying heat exchange tube is located to be protected
The tube wall outer circumferential of temperature area is provided with heat-insulation layer, can prevent thermal loss, for user side provides hot water or heating.
In above-mentioned mid-deep strata ground temperature composite mode exchanges heat buried pipe device, described heat-insulation layer by polyurethane heat-insulation every
Any one or more group in hot material, centrifugally glass-wool felt, composite silicate thermal insulation heat insulating mortar and litaflex product
Conjunction is made.
In above-mentioned mid-deep strata ground temperature composite mode exchanges heat buried pipe device, described deep layer ground burying heat exchange tube is located to be protected
The tube wall outer circumferential of temperature area is not provided with heat-insulation layer, and described deep layer ground burying heat exchange tube is located at the part of soak zones with
Layer ground burying heat exchange tube mutually exchanges heat；The heat diffusion of heat exchange area in region is protected, is made guarantor by this kind of situation, deep layer ground burying heat exchange tube
The heat of temperature area is increased substantially, and heat preservation zone heat is collected for one or more middle level ground burying heat exchange tube, and enhancing middle level is buried
The heat transfer effect and heating effect of heat exchanger tube, many middle level ground burying heat exchange tubes can efficiently pass in multiple different use heat
Family side, realizes that a deep layer ground burying heat exchange tube combination middle level ground burying heat exchange tube provides the purpose of heat to multiple user sides, simplifies
Structure, makes full use of deep layer heat.
In above-mentioned mid-deep strata ground temperature composite mode exchanges heat buried pipe device, described deep layer ground burying heat exchange tube is single-pass
Deferent, and described deep layer ground burying heat exchange tube is any one in U-tube, coaxial sleeve and single tube pad pipe.
In above-mentioned mid-deep strata ground temperature composite mode exchanges heat buried pipe device, filled in described deep layer ground burying heat exchange tube pipe
The first heat-conducting work medium filled out is nano-fluid, and it has the advantages that uniform, stable, high heat conduction, improves heat transfer efficiency.
In above-mentioned mid-deep strata ground temperature composite mode exchanges heat buried pipe device, described middle level ground burying heat exchange tube is single-pass
Road or twin-channel cold-hot exchanging tube, and middle level ground burying heat exchange tube can double loop switching, and the middle level in each Deep Underground
The quantity of ground burying heat exchange tube is at least one.
In above-mentioned mid-deep strata ground temperature composite mode exchanges heat buried pipe device, filled in described middle level ground burying heat exchange tube pipe
The second heat-conducting work medium is filled out for superconductive medium.
Compared with prior art, the utility model has the advantage of：1st, the device is reasonable in design, simple structure, input
Low cost；2nd, exchanged heat with middle level ground burying heat exchange tube and deep layer ground burying heat exchange tube composite mode, both have collected the heat of deeper
Amount, the geothermal energy for being hidden using underground in large quantities, make use of the geothermal energy compared with shallow-layer again, can simultaneously realize heating and cooling, carry
Heat exchange efficiency high；3rd, middle level ground burying heat exchange tube is not connected with the heat-conducting work medium of deep layer ground burying heat exchange tube with underground water, is simply led to
Cross heat-conducting work medium to be conducted heat, it is ensured that while good heat transfer effect, be not in cause surface subsidence because of suction underground water,
Or the problem that recharging technique constitutes a threat to and pollutes to underground water source.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model deep layer ground burying heat exchange tube works independently；
Fig. 2 is the structural representation of the utility model deep layer ground burying heat exchange tube and the compound work of middle level ground burying heat exchange tube.
In figure, deep layer ground burying heat exchange tube 1, soak zones 11, heat exchange area 12, middle level ground burying heat exchange tube 2.
Specific embodiment
Embodiment one
As depicted in figs. 1 and 2, the buried pipe device of mid-deep strata ground temperature composite mode heat exchange of the present utility model, including it is embedded
In the deep layer ground burying heat exchange tube 1 in underground, the first heat-exchange working medium is filled with inside deep layer ground burying heat exchange tube 1 and deep layer is buried
The two ends of heat exchanger tube 1 are connected with user side, and being provided with least one in the upper end side of deep layer ground burying heat exchange tube 1 is embedded in underground
And the middle level ground burying heat exchange tube 2 filled with the second heat-exchange working medium, and the two ends of middle level ground burying heat exchange tube 2 are connected with user side respectively,
Deep layer ground burying heat exchange tube 1 is from up to down separated into soak zones 11 and heat exchange area 12, and the whole of middle level ground burying heat exchange tube 2 or office
Portion is located in soak zones 11, and the present embodiment is combined work by middle level ground burying heat exchange tube 2 and deep layer ground burying heat exchange tube 1, makes to change
Thermal velocity is accelerated, and descends thermal source to be collected over the ground by the collection hot-zone of deep layer ground burying heat exchange tube 1, and middle level ground burying heat exchange tube is using deep
The heat that layer ground burying heat exchange tube stays in soak zones carries out secondary thermal-arrest, and the geothermal energy for being hidden using underground in large quantities improves ground
Heat utilization rate and heat exchange efficiency, the geothermal energy for being hidden using underground in large quantities.
Further, deep layer ground burying heat exchange tube 1 and middle level ground burying heat exchange tube 2 are in vertically and shift to install in Deep Underground
It is interior, and Deep Underground depth is 2000-4000 meters, it is 3000 meters that the present embodiment uses depth, and the near-bottom temperature of Deep Underground is
60-150 degree, the length of deep layer ground burying heat exchange tube 1 is 2000-4000 meters, and length is consistent with deep-well depth, the buried heat exchange in middle level
The length of pipe 2 is 400-600 meters, and the middle level ground burying heat exchange tube 2 in the present embodiment uses 500 meters of length, and the buried heat exchange in middle level
The temperature of the bottom outside of pipe 2 is 10-20 degree, and deep layer ground burying heat exchange tube 1 is used to collect the temperature of 60-150 degree, long-term to be used to supply
Heat；Middle level ground burying heat exchange tube 2 is used to collect the temperature of 10-20 degree, and single middle level ground burying heat exchange tube 2 can provide cold in the cooling phase
Amount, the heat supply phase provides heat.
Preferably, from ground, 400-600 meters of region is soak zones 11 to deep layer ground burying heat exchange tube 1 downwards, and deep layer is buried to change
The downward region of the self-insurance temperature area 11 of heat pipe 1 namely collects hot-zone for heat exchange area 12, for by underground 2000-4000 meters of ground
Thermal energy is collected, and is conducted heat by the working medium in deep layer ground burying heat exchange tube 1, and heat is sent in user side；Deep layer is buried
The tube wall outer circumferential that heat exchanger tube 1 is located at soak zones 11 is provided with heat-insulation layer, and heat-insulation layer is by polyurethane heat-insulation heat-barrier material, centrifugation
Blanket of glass wool, composite silicate thermal insulation heat insulating mortar are combined with any one or more in litaflex product and are made, and can be prevented
Only thermal loss, for user side provides hot water or heating, improves the heating efficiency of deep layer ground burying heat exchange tube 1, the buried heat exchange of deep layer
The connecting bracket with heat-resistant anticorrosive corrosion energy is provided between pipe 1 and middle level ground burying heat exchange tube 2, for keeping both stabilizations
Property, while preventing deep layer ground burying heat exchange tube 1 from being shaken in underground and causing to clash into damage between the two with middle level ground burying heat exchange tube 2
Bad heat exchanger tube.
In order to improve heat transfer efficiency, the first heat-conducting work medium of the casing pack of deep layer ground burying heat exchange tube 1 is nano-fluid, its tool
There is uniform, stable, high heat conduction；Likewise, the second heat-conducting work medium of casing pack of middle level ground burying heat exchange tube 2 is situated between for superconduction
Matter, it has start-up temperature low, and transmission speed is fast, efficiency high and the advantages of without maintenance, is very suitable for shallow-layer low-temperature heat quantity
Heat exchange utilize.
In this programme, deep layer ground burying heat exchange tube 1 is single-pass deferent, and deep layer ground burying heat exchange tube 1 is simple structure, installation
Convenient U-shaped type pipe, deep layer ground burying heat exchange tube 1 can also be using any one in coaxial sleeve and single tube pad pipe；Middle level ground
Heat exchanger tube 2 is buried for single channel or twin-channel cold-hot exchanging tube, and middle level ground burying heat exchange tube 2 can double loop switching, and each
The quantity of the middle level ground burying heat exchange tube 2 in Deep Underground is at least one.
Embodiment two：
The embodiment is similar with embodiment one, and difference is the pipe that deep layer ground burying heat exchange tube 1 is located at soak zones 11
Wall outer circumferential is not provided with heat-insulation layer, and deep layer ground burying heat exchange tube 1 is located at part and the middle level ground burying heat exchange tube 2 of soak zones 11
Mutually heat exchange；The heat diffusion of heat exchange area in soak zones 11, is made soak zones by this kind of situation, deep layer ground burying heat exchange tube 1
11 heat is increased substantially, and heat preservation zone heat is collected for one or more middle level ground burying heat exchange tube 2, strengthens the buried heat exchange in middle level
The heat transfer effect and heating effect of pipe 2, many middle level ground burying heat exchange tubes 2 can efficiently pass in multiple different users heat
Side, realizes that a deep layer ground burying heat exchange tube 1 combines the purpose that middle level ground burying heat exchange tube 2 provides heat to multiple user sides, simplifies
Structure, makes full use of deep layer heat；Connecting bracket is provided between deep layer ground burying heat exchange tube 1 and middle level ground burying heat exchange tube 2, to protect
Both stability is held, connecting bracket can use the preferable metal material of heat transfer efficiency, such as aluminium, while in connecting bracket table
Face coating anti-corrosion heat-resisting layer, connecting bracket prevent deep layer ground burying heat exchange tube 1 and middle level ground burying heat exchange tube 2 shake in underground and
Cause to clash into damage heat exchanger tube between the two, while improving the heat transfer between deep layer ground burying heat exchange tube 1 and middle level ground burying heat exchange tube 2
Efficiency.
In sum, the double-U-shaped underground pipe enhanced heat exchange conduction device mode of operation in the ground source is as follows：
Pattern 1：In the case where winter needs heating, the valve where closing middle level ground burying heat exchange tube 2, using deep layer ground
The heat for burying the collection of heat exchanger tube heat exchange area 12 carries out heat supply, can well using the region week where deep layer ground burying heat exchange tube
The geothermal energy enclosed, is conducted heat by the nano-fluid medium in deep layer ground burying heat exchange tube 1, and the temperature passed in user side completely may be used
The need for meeting user's heating and supplying hot water.
Pattern 2：Heat supply is needed in winter in another case, middle level ground burying heat exchange tube 2 is same with deep layer ground burying heat exchange tube 1
Shi Jinhang is utilized, and deep layer is still used for heat supply, but the heat of deep layer is directly utilized, temperature mistake when in particular for heating
Height, is so accomplished by dispersing partial heat, causes utilization rate too low；And middle level is 10- in the temperature collected by shallow layer surface
20 degree, heat supply shortage of heat needs other equipment (such as heat pump) to be adjusted, and only uses pure air-conditioning heat supply than original technology
Method has saved 40 or so percent energy, it is still desirable to consume the more energy；This programme is by deep layer ground burying heat exchange tube 1
By the temperature under Deep Underground, user side is partly delivered to, partial heat rests on soak zones 11 in one or more
Layer ground burying heat exchange tube 2 is exchanged heat, and heat of the middle level ground burying heat exchange tube 2 to deep layer ground burying heat exchange tube 1 in heat preservation zone carries out secondary
Collect, get deep layer heat, improve the temperature of working medium in middle level ground burying heat exchange tube 2, realize, to multiple user side heat supplies, improving ground
The utilization rate of geothermal energy in lower deep-well, improves the heat that middle level ground burying heat exchange tube is transmitted to user side, saves other equipment to adjust
The energy of the temperature consumption of whole middle level ground burying heat exchange tube correspondence user side, the heat for making full use of deep layer ground burying heat exchange tube to collect.
Pattern 3：In the case where summer needs cooling, deep layer ground burying heat exchange tube can still be used for supplying hot water, it is also possible to
By the place valve closing of deep layer ground burying heat exchange tube 1, reduce the influence of middle level ground burying heat exchange tube cooling, by middle level ground burying heat exchange tube 2
Cooling is carried out, shallow layer surface 10-20 degree constant temperature heats are passed the effect that summer cooling is realized in user side.
The utility model farthest make use of geothermal energy, while heat supply and cooling are realized, and in deep layer Btu utilization
Will not cause surface subsidence while fully, also water source will not be constituted a threat to and be polluted, be with a wide range of applications.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used deep layer ground burying heat exchange tube 1, soak zones 11 herein, heat exchange area 12, middle level is buried changes
The grade term of heat pipe 2, but it is not precluded from using the possibility of other terms.It is used for the purpose of more easily describing using these terms
With explanation essence of the present utility model；Being construed as any additional limitation is disagreed with the utility model spirit
The back of the body.
Claims (10)
1. a kind of buried pipe device of mid-deep strata ground temperature composite mode heat exchange, including the buried heat exchange of deep layer being embedded in underground
Pipe (1), it is characterised in that be filled with the first heat-exchange working medium and the buried heat exchange of deep layer inside described deep layer ground burying heat exchange tube (1)
Pipe (1) two ends are connected with user side, and being provided with least one in deep layer ground burying heat exchange tube (1) upper end side is embedded in underground
And the middle level ground burying heat exchange tube (2) filled with the second heat-exchange working medium, and described middle level ground burying heat exchange tube (2) two ends respectively with
Family side is connected, and described deep layer ground burying heat exchange tube (1) is from up to down separated into soak zones (11) and heat exchange area (12), and institute
Middle level ground burying heat exchange tube (2) whole stated is partially located in soak zones (11).
2. mid-deep strata ground temperature composite mode according to claim 1 exchanges heat buried pipe device, it is characterised in that described depth
Layer ground burying heat exchange tube (1) and middle level ground burying heat exchange tube (2) are in vertically and shift to install in Deep Underground, and described underground
Deep-well depth is 2000-4000 meters, and the near-bottom temperature of the Deep Underground is 60-150 degree, described deep layer ground burying heat exchange tube
(1) length is 2000-4000 meter, and the length of described middle level ground burying heat exchange tube (2) is 400-600 meters, and middle level is buried changes
The temperature of heat pipe (2) bottom outside is 10-20 degree.
3. mid-deep strata ground temperature composite mode according to claim 2 exchanges heat buried pipe device, it is characterised in that described depth
From ground, 400-600 meters of region is soak zones (11), described deep layer ground burying heat exchange tube (1) to layer ground burying heat exchange tube (1) downwards
The downward region of self-insurance temperature area (11) is heat exchange area (12).
4. mid-deep strata ground temperature composite mode according to claim 1 or 2 or 3 exchanges heat buried pipe device, it is characterised in that institute
The deep layer ground burying heat exchange tube (1) stated is provided with heat-insulation layer positioned at the tube wall outer circumferential of soak zones (11).
5. mid-deep strata ground temperature composite mode according to claim 4 exchanges heat buried pipe device, it is characterised in that described guarantor
Warm layer is by polyurethane heat-insulation heat-barrier material, centrifugally glass-wool felt, composite silicate thermal insulation heat insulating mortar and litaflex product
Any one or more combination be made.
6. mid-deep strata ground temperature composite mode according to claim 1 or 2 or 3 exchanges heat buried pipe device, it is characterised in that institute
The deep layer ground burying heat exchange tube (1) stated is not provided with heat-insulation layer, and described deep layer positioned at the tube wall outer circumferential of soak zones (11)
Ground burying heat exchange tube (1) mutually exchanges heat positioned at the part of soak zones (11) with middle level ground burying heat exchange tube (2).
7. mid-deep strata ground temperature composite mode according to claim 1 exchanges heat buried pipe device, it is characterised in that described depth
Layer ground burying heat exchange tube (1) is single-pass deferent, and described deep layer ground burying heat exchange tube (1) be U-tube, coaxial sleeve and single tube pad pipe
In any one.
8. mid-deep strata ground temperature composite mode according to claim 7 exchanges heat buried pipe device, it is characterised in that described depth
First heat-conducting work medium of layer ground burying heat exchange tube (1) casing pack is nano-fluid.
9. mid-deep strata ground temperature composite mode according to claim 2 exchanges heat buried pipe device, it is characterised in that in described
Layer ground burying heat exchange tube (2) is single channel or twin-channel cold-hot exchanging tube, and middle level ground burying heat exchange tube (2) can double loop switching,
And the quantity of the middle level ground burying heat exchange tube (2) in each Deep Underground is at least one.
10. mid-deep strata ground temperature composite mode according to claim 9 exchanges heat buried pipe device, it is characterised in that described
The second heat-conducting work medium of middle level ground burying heat exchange tube (2) casing pack is superconductive medium.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145976.9U CN206300374U (en) | 2016-10-21 | 2016-10-21 | The buried pipe device of mid-deep strata ground temperature composite mode heat exchange |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145976.9U CN206300374U (en) | 2016-10-21 | 2016-10-21 | The buried pipe device of mid-deep strata ground temperature composite mode heat exchange |
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| CN206300374U true CN206300374U (en) | 2017-07-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642764A (en) * | 2016-10-21 | 2017-05-10 | 浙江陆特能源科技股份有限公司 | Middle-deep ground temperature compound mode buried pipe heat exchange device |
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2016
- 2016-10-21 CN CN201621145976.9U patent/CN206300374U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642764A (en) * | 2016-10-21 | 2017-05-10 | 浙江陆特能源科技股份有限公司 | Middle-deep ground temperature compound mode buried pipe heat exchange device |
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