CN105423585B - Soil heat exchange transmitting device - Google Patents

Soil heat exchange transmitting device Download PDF

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Publication number
CN105423585B
CN105423585B CN201510810670.4A CN201510810670A CN105423585B CN 105423585 B CN105423585 B CN 105423585B CN 201510810670 A CN201510810670 A CN 201510810670A CN 105423585 B CN105423585 B CN 105423585B
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thermally conductive
outer tube
conductive outer
built
heat
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CN105423585A (en
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夏惊涛
石磊
吴宏伟
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Loopmaster Energy Technology Co Ltd
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Loopmaster Energy Technology Co Ltd
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    • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (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)

Abstract

The invention belongs to heat transfer equipment technical fields, more particularly, to a kind of soil heat exchange transmitting device.It solves the technical problems such as existing heat exchange transmitting device heat exchange efficiency is low.This soil heat exchange transmitting device includes thermally conductive outer tube closed at both ends, built-in tube body is equipped in thermally conductive outer tube, heat-conducting work medium is nano particle superconductive medium, built-in tube body is axially extending along thermally conductive outer tube, the upper end of built-in tube body is located at the upper end of thermally conductive outer tube, and the heat-conducting work medium outlet that the heat-conducting work medium in thermally conductive outer tube can be made to flow out is equipped in the upper end of thermally conductive outer tube, there is spacing between built-in tube body lower end and thermally conductive outer tube lower end base, be equipped with rabbling mechanism at spacing.Advantage is: efficiency of thermal transfer is high, and the suspended solids that can be effectively prevented in fluid are deposited on pipe lowermost end, easily selects fluid flow forces passive matrix or external power/magnetic force active drive.

Description

Soil heat exchange transmitting device
Technical field
The invention belongs to heat transfer equipment technical fields, more particularly, to a kind of soil heat exchange transmitting device.
Background technique
Earth source heat pump is a kind of energy-saving and environment-friendly air-conditioning system that can freeze but also heat using geothermal resource.Ground Source heat pump utilizes a small amount of high-grade energy, and winter takes out thermal energy from soil, is transferred to indoor Demand-side, summer will be indoor Heat is transferred to underground, keeps indoor low temperature environment.But ground-source heat pump system, the big heat exchange of underground pipe pipe laying quantity pass Movement Capabilities are low, and main transporting mode is that energy is led the computer room in building from underground from pump circulation as defeated thermal medium with water In system.Common vertical gravity heat pipe heat transmission ability is big, but cannot run under the cold upper end thermal condition in lower end.Nanometer is molten Transmittability can be improved in liquid/gas solid two-phase, but there are problems that nanoparticle sedimentation is assembled and plugging destroys dispersibility, In addition to this, existing gravity assisted heat pipe exchange heat when there is also: stability is poor, and heat conduction efficiency is low, and thermal conduction effect difference etc. is asked Topic.
Of the existing technology in order to solve the problems, such as, people have carried out long-term exploration, propose miscellaneous solution Scheme.For example, Chinese patent literature disclose a kind of gravity assisted heat pipe augmentation of heat transfer structure [application number: 201310353861.3], Guide shell including being set to gravity assisted heat pipe inner cavity, guide shell inside form the rising passway of steam state working medium, guide shell lateral wall The decline passway of liquid refrigerant is formed between gravity assisted heat pipe inner tube wall, the top of guide shell is equipped with rising passway and decline The air port of channel conductive, the lower part of guide shell are equipped with the refluxing opening that decline passway is connected with rising passway.
Above scheme solves the problems, such as that existing gravity assisted heat pipe thermal conduction effect is poor to a certain extent, but the program according to So there is: stability is poor, and heat conduction efficiency is low, nanoparticle sedimentation aggregation and plugging make dispersibility destroy the problem of.
Summary of the invention
Regarding the issue above, the present invention provides a kind of simple and reasonable, the high soil of heat conduction efficiency is changed Heat transfer apparatus.
In order to achieve the above objectives, present invention employs following technical proposals: this soil heat exchange transmitting device, feature exist In this soil heat exchange transmitting device includes thermally conductive outer tube closed at both ends, and being equipped in the thermally conductive outer tube can be by thermally conductive outer tube Outer heat-conducting work medium flows into from the upper end and flows out from its lower end the built-in tube body for entering heat-conducting work medium in thermally conductive outer tube, The heat-conducting work medium is nano particle superconductive medium, and the built-in tube body is axially extending along thermally conductive outer tube, and described is interior The upper end for setting tube body is located at the upper end of thermally conductive outer tube, and is equipped in the upper end of the thermally conductive outer tube and can make leading in thermally conductive outer tube The heat-conducting work medium outlet of hot working fluid outflow, has spacing between the built-in tube body lower end and thermally conductive outer tube lower end base, Heat-conducting work medium can be stirred to prevent the nanoparticle deposition in nano particle superconductive medium by being equipped at the spacing Rabbling mechanism.Here thermally conductive outer tube can disposably place into the soil with drilling machine, under the work of fluid drive apparatus, containing receiving Ground source cold heat energy is carried conveying geothermal heat pump by the heat-conducting work medium energy ground of rice corpuscles, when system is in off working state Even the shutdown of longer period when, the part nanoparticle in heat-conducting work medium has when gathering sedimentation, or even is deposited on pipeline bottom By the movement of rabbling mechanism, nanoparticle is again uniform when portion, heat-conducting work medium here can be single component fluid, It is also possible to the compound fluid of multiphase, fluid can be liquid and be also possible to gas, and the form of fluid heat transferring can be flowing and pass Defeated pulsatile delivery and vibration transmission, its main component of heat-conducting work medium are water, R123, R134a, nano-sized carbon, nanometer TO2, are filled Note space ratio is 30-100%, nano material mass percent 1-100%, and rabbling mechanism can prevent nano particle superconductive medium In nanoparticle deposition occur plugging make dispersibility destroy the problem of.
In above-mentioned soil heat exchange transmitting device, the rabbling mechanism is including through rotational installation structure setting Set the stirring rotator that below tube end portion and can be circumferentially rotated, and the stirring rotator is towards built-in bottom of the pipe.Stir Rotor faces built-in bottom of the pipe, and the heat-conducting work medium come out from built-in tube body can promote stirring rotator rotation anti-settling to improve Product effect.
In above-mentioned soil heat exchange transmitting device, the stirring rotator can be under the effect of the hot-fluid of heat-conducting work medium directly It is driven to rotate;Or the power mechanism that stirring rotator can be driven to rotate is also connected on the stirring rotator.I.e. stirring turns Son actively or passively rotates, and can move and rotate with heat-conducting work medium, can also be rotated by power mechanism.
In above-mentioned soil heat exchange transmitting device, the stirring rotator includes mounting base, and the mounting base is circumferential Outside is equipped with several agitator arms being uniformly distributed and be located in spacing.Agitator arm preferably uses oblique flow blade shape, in this way Mixing effect can be improved, the nanoparticle deposition in nano particle superconductive medium is prevented.
In above-mentioned soil heat exchange transmitting device, the rotational installation structure includes being fixed in thermally conductive outer tube Bracket, be equipped with the drive shaft that can be circumferentially rotated in the bracket, the mounting base fixed setting on the driving shaft, and The driveshaft end extends in built-in pipe body, sets between the drive shaft outer circumferential and the circumferential inside of built-in tube body There is bearing.Stirring rotator material is plastics, and bearing here can use oil-free magnetic suspension bearing, so that bearing is not easy to block up Fill in built-in tube end portion.
In above-mentioned soil heat exchange transmitting device, the thermally conductive outer pipe bottom, which is equipped with, to prevent heat-conducting work medium to be deposited on The anti-deposition structure of thermally conductive outer pipe bottom.
In above-mentioned soil heat exchange transmitting device, the anti-deposition structure includes being arranged in thermally conductive outer pipe bottom and position Rotation brush body below stirring rotator, and the rotation brush body is fixedly linked with drive shaft.It is driven when stirring rotator drives When axis rotates, since rotation brush body is connected with drive shaft, so that roll brush physical efficiency circumferentially rotates to prevent nano particle Nanoparticle deposition in superconductive medium is in the bottom of thermally conductive outer tube.
In above-mentioned soil heat exchange transmitting device, the spacing between size and built-in outer tube diameter size Ratio be 1-3:1.Preferably, ratio here is 1-2:1.
In above-mentioned soil heat exchange transmitting device, the heat-conducting work medium is two-phase solid-liquid fluid or Dual-Phrase Distribution of Gas olid Body.
In above-mentioned soil heat exchange transmitting device, the thermally conductive outer tube and built-in tube body are in straight tube-like or bending respectively Shape;The thermally conductive outer tube and built-in tube body are respectively any one in light pipe, bellows and screwed pipe, and described thermally conductive Outer tube and built-in tube body are respectively any one in steel pipe, copper pipe, plastic-metal composite pipe and plastic tube.Thermally conductive outer tube with it is interior It sets tube body and all has air-tightness, voltage endurance capability is 1.2Mpa or more, outer tube thermal coefficient >=0.1kJ/mK.
Compared with prior art, the advantages of this soil heat exchange transmitting device, is: 1, using fluid as Heat transmission work Matter, when in particular by solid-liquid two-phase or gas-particle two-phase fluid working medium, efficiency of thermal transfer is high.2, fluid can be effectively prevented In suspended solids be deposited on pipe lowermost end.3, select with can be convenient fluid flow forces passive matrix or external power/ The active drive of magnetic force.4, using simple and safe, it is not necessarily to daily maintenance, there is application prospect in Heating,Ventilating and Air Conditioning energy industry.
Detailed description of the invention
Fig. 1 is structural schematic diagram provided by the invention.
Fig. 2 is the cross-sectional view at A-A provided by the invention.
In figure, thermally conductive outer tube 1, built-in tube body 2, spacing 3, rabbling mechanism 4, stirring rotator 41, is moved heat-conducting work medium outlet 11 Force mechanisms 42, mounting base 43, agitator arm 44, bracket 45, drive shaft 46, bearing 47, anti-deposition structure 5, rotation brush body 51.
Specific embodiment
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 soil heat exchange transmitting device is set in thermally conductive outer tube 1 including thermally conductive outer tube 1 closed at both ends Having can flow into from the upper end by the heat-conducting work medium outside thermally conductive outer tube 1 and flow out to enter heat-conducting work medium outside thermally conductive from its lower end Built-in tube body 2 in pipe 1, heat-conducting work medium be nano particle superconductive medium, can be two-phase solid-liquid fluid or gas-particle two-phase fluid, Built-in tube body 2 is axially extending along thermally conductive outer tube 1, and the upper end of built-in tube body 2 is located at the upper end of thermally conductive outer tube 1, and thermally conductive outer The upper end of pipe 1 be equipped with the heat-conducting work medium in thermally conductive outer tube 1 can be made flow out heat-conducting work medium outlet 11, built-in 2 lower end of tube body and There is spacing 3, the ratio between 2 outer diameter size of size and built-in tube body of spacing 3 is between thermally conductive 1 lower end base of outer tube 1-3:1, wherein ratio is that 1-2:1 is the most suitable, and heat-conducting work medium can be stirred to prevent nanometer by being equipped at spacing 3 The rabbling mechanism 4 of nanoparticle deposition in grain superconductive medium, thermally conductive outer tube 1 here can be disposably earthed with drilling machine Ground source cold heat energy is carried conveying ground source to the heat-conducting work medium energy containing nanoparticle under the work of fluid drive apparatus by earth Heat pump assembly, the part nanoparticle when system is in the off working state even shutdown of longer period, in heat-conducting work medium It is by the movement of rabbling mechanism 4, nanoparticle is again uniform when having when gathering sedimentation, or even being deposited on thermally conductive outer tube 1, this In heat-conducting work medium can be single component fluid, be also possible to the compound fluid of multiphase, fluid can be liquid and be also possible to Gas, the form of fluid heat transferring can be flowing transmission pulsatile delivery and vibration transmission, its main component of heat-conducting work medium be water, R123, R134a, nano-sized carbon, nanometer TO2, reperfusion space ratio be 30-100%, nano material mass percent 1-100%, and Rabbling mechanism 4 can prevent the nanoparticle deposition in nano particle superconductive medium from the problem of plugging destroys dispersibility occurs.
Specifically, the rabbling mechanism 4 in the present embodiment includes by being rotatablely installed structure setting under built-in 2 end of tube body Side and the stirring rotator 41 that can be circumferentially rotated, and stirring rotator 41 towards built-in 2 lower end of tube body, i.e. stirring rotator 41 faces interior 2 lower end of tube body is set, the heat-conducting work medium come out from built-in tube body 2 can promote the rotation of stirring rotator 41 to improve anti-deposition effect, Wherein, stirring rotator 41 here can directly be driven to rotate under the effect of the hot-fluid of heat-conducting work medium;Or on stirring rotator 41 It is also connected with the power mechanism 42 that stirring rotator 41 can be driven to rotate, i.e. stirring rotator 41 actively or passively rotates, can be with leading Hot working fluid is moved and is rotated, and can also be rotated by power mechanism 42.Preferably, stirring rotator 41 here includes mounting base 43,43 outer circumferential of mounting base is equipped with several agitator arms 44 being uniformly distributed and be located in spacing 3, and agitator arm 44 is preferably adopted With oblique flow blade shape, mixing effect can be improved in this way, prevent the nanoparticle deposition in nano particle superconductive medium, meanwhile, Here rotational installation structure includes the bracket 45 being fixed in thermally conductive outer tube 1, and being equipped in bracket 45 can circumferentially rotate Drive shaft 46, mounting base 43 is fixed in drive shaft 46, and 46 end of drive shaft extends in built-in tube body 2, driving 46 outer circumferential of axis and built-in tube body 2 weeks inwardly between be equipped with bearing 47,41 material of stirring rotator can be plastic material, this In bearing 47 can use oil-free magnetic suspension bearing, so that bearing 47 is not easy to plug built-in 2 end of tube body.
Further, 1 bottom of thermally conductive outer tube here, which is equipped with, can prevent heat-conducting work medium to be deposited on the anti-of thermally conductive 1 bottom of outer tube Structure 5 is deposited, for example, anti-deposition structure 5 may include that thermally conductive 1 bottom of outer tube is arranged in and is located at below stirring rotator 41 to turn Dynamic brush body 51, and rotate brush body 51 and be fixedly linked with drive shaft 46, when stirring rotator 41 drives drive shaft 46 to rotate, due to turning Dynamic brush body 51 is connected with drive shaft 46, so that rotation brush body 51 can circumferentially rotate to prevent in nano particle superconductive medium Nanoparticle deposition in the bottom of thermally conductive outer tube 1, it is preferable that thermally conductive outer tube 1 here and built-in tube body 2 are in straight tube-like respectively Or bending;Thermally conductive outer tube 1 and any one that built-in tube body 2 is respectively in light pipe, bellows and screwed pipe, and thermally conductive outer tube 1 with built-in tube body 2 be respectively steel pipe, copper pipe, plastic-metal composite pipe and plastic tube in any one, thermally conductive outer tube here Air-tightness is all had with built-in tube body, voltage endurance capability is 1.2Mpa or more, outer tube thermal coefficient >=0.1kJ/mK.
In the present embodiment, it includes: first disposably to be embedded to thermally conductive outer tube 1 with drilling machine that this soil heat exchange transmitting device is prefabricated Soil, i.e. drilling machine operate in ground and get hole, and underground pipe is filled in underground opening, and buried pipe is kit, including Anti- deposition structure 5, rabbling mechanism 4, thermally conductive outer tube 1 and built-in tube body 2, magma or backfilling material are backfilled, and are filled thermally conductive Gap between outer tube 1 and soil hole wall;Then the fluid of transmission heat is added into the pipeline of thermally conductive outer tube 1, and will Duct sealing pressure maintaining closed a period of time is connect by underground pipe transmitting device with horizontal pipe network, after water pump/blower is opened, Heat-conducting work medium flowing or pulsation, stirring rotator 41 are moved with heat-conducting work medium and are rotated.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention 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 thermally conductive outer tube 1 is used more herein, heat-conducting work medium exports 11, built-in tube body 2, spacing 3, rabbling mechanism 4, stirring rotator 41, power mechanism 42, mounting base 43, agitator arm 44, bracket 45, drive shaft 46, bearing 47, anti-deposition structure 5, the terms such as brush body 51 are rotated, but it does not exclude the possibility of using other terms.The use of these items is only for more square Just essence of the invention is described and explained;Being construed as any additional limitation is disagreed with spirit of that invention Back.

Claims (5)

1. a kind of soil heat exchange transmitting device, which is characterized in that this soil heat exchange transmitting device includes closed at both ends thermally conductive outer It manages (1), being equipped in the thermally conductive outer tube (1) can flow into the heat-conducting work medium of thermally conductive outer tube (1) outside from the upper end and under it To make heat-conducting work medium enter the built-in tube body (2) in thermally conductive outer tube (1), the heat-conducting work medium is super for nano particle for end outflow Medium is led, the built-in tube body (2) is axially extending along thermally conductive outer tube (1), and the upper end of the built-in tube body (2), which is located at, leads The upper end of hot outer tube (1), and the heat-conducting work medium stream that can make in thermally conductive outer tube (1) is equipped in the upper end of the thermally conductive outer tube (1) Heat-conducting work medium out exports (11), has spacing between built-in tube body (2) lower end and thermally conductive outer tube (1) lower end base (3), heat-conducting work medium can be stirred to prevent the nanometer in nano particle superconductive medium by being equipped at the spacing (3) The rabbling mechanism (4) of grain deposition;The rabbling mechanism (4) includes being held by rotational installation structure setting in built-in tube body (2) Below portion and the stirring rotator (41) that can circumferentially rotate, and the stirring rotator (41) is towards built-in tube body (2) lower end;It is described Stirring rotator (41) include mounting base (43), the mounting base (43) outer circumferential is equipped with several between being uniformly distributed and being located at Away from the agitator arm (44) in (3);The rotational installation structure includes the bracket being fixed in thermally conductive outer tube (1) (45), it is equipped with the drive shaft (46) that can be circumferentially rotated in the bracket (45), the mounting base (43) is fixed at In drive shaft (46), and described drive shaft (46) end extends in built-in tube body (2), and drive shaft (46) week is outward Side and built-in tube body (2) week inwardly between be equipped with bearing (47);Thermally conductive outer tube (1) bottom, which is equipped with, can prevent thermally conductive work Matter is deposited on the anti-deposition structure (5) of thermally conductive outer tube (1) bottom;The anti-deposition structure (5) includes being arranged in thermally conductive outer tube (1) bottom and the rotation brush body (51) being located at below stirring rotator (41), and the rotation brush body (51) and drive shaft (46) It is fixedly linked.
2. soil heat exchange transmitting device according to claim 1, which is characterized in that the stirring rotator (41) can led It is directly driven to rotate under the hot-fluid effect of hot working fluid;Or being also connected on the stirring rotator (41) can drive stirring to turn The power mechanism (42) of sub (41) rotation.
3. soil heat exchange transmitting device according to claim 2, which is characterized in that the spacing (3) apart from size Ratio between built-in tube body (2) outer diameter size is (1-3): 1.
4. soil heat exchange transmitting device according to claim 1 or 2 or 3, which is characterized in that the heat-conducting work medium is solid Gas-liquid two-phase liquid or gas-particle two-phase fluid.
5. soil heat exchange transmitting device according to claim 4, which is characterized in that the thermally conductive outer tube (1) with it is built-in Tube body (2) is in straight tube-like or bending respectively;The thermally conductive outer tube (1) and built-in tube body (2) be respectively light pipe, bellows with Any one in screwed pipe, and the thermally conductive outer tube (1) and built-in tube body (2) are respectively that steel pipe, copper pipe, plastic-metal are multiple Close any one in pipe and plastic tube.
CN201510810670.4A 2015-11-20 2015-11-20 Soil heat exchange transmitting device Active CN105423585B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106123169B (en) * 2016-06-29 2018-12-14 深圳日海新能源科技有限公司 Energy-saving air conditioning
CN109748591A (en) * 2019-03-29 2019-05-14 江西省欧陶科技有限公司 A kind of liquid ceramics mud degumming agent and preparation method thereof
CN110617654B (en) * 2019-10-17 2021-03-30 高驰国际设计有限公司 Buried pipe for soil source heat pump

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JP2005326128A (en) * 2004-05-17 2005-11-24 Kobayashi Shigeru Heat exchanger using ground heat and air conditioner
GB2434200A (en) * 2006-01-14 2007-07-18 Roxbury Ltd Heat exchanger component for a geothermal system
EP1923569A1 (en) * 2006-11-14 2008-05-21 Alf Gundermann Geothermal heat probe
WO2010053424A1 (en) * 2008-11-10 2010-05-14 Pemtec Ab System for exchanging energy with a ground
CN201600053U (en) * 2010-01-29 2010-10-06 珠海高新区九圆热交换设备制造有限公司 Volumetric heat exchanger with stirring device
CN102016218A (en) * 2008-02-22 2011-04-13 雷蒙德·J·罗西 Method and system for installing geothermal heat exchangers, pile-foundation heat exchangers, concrete piles, micropiles and anchors using acoustic frequency drilling and removable or retrievable drill bits
CN205332578U (en) * 2015-11-20 2016-06-22 浙江陆特能源科技股份有限公司 High -efficient soil heat transfer transmission device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005326128A (en) * 2004-05-17 2005-11-24 Kobayashi Shigeru Heat exchanger using ground heat and air conditioner
GB2434200A (en) * 2006-01-14 2007-07-18 Roxbury Ltd Heat exchanger component for a geothermal system
EP1923569A1 (en) * 2006-11-14 2008-05-21 Alf Gundermann Geothermal heat probe
CN102016218A (en) * 2008-02-22 2011-04-13 雷蒙德·J·罗西 Method and system for installing geothermal heat exchangers, pile-foundation heat exchangers, concrete piles, micropiles and anchors using acoustic frequency drilling and removable or retrievable drill bits
WO2010053424A1 (en) * 2008-11-10 2010-05-14 Pemtec Ab System for exchanging energy with a ground
CN201600053U (en) * 2010-01-29 2010-10-06 珠海高新区九圆热交换设备制造有限公司 Volumetric heat exchanger with stirring device
CN205332578U (en) * 2015-11-20 2016-06-22 浙江陆特能源科技股份有限公司 High -efficient soil heat transfer transmission device

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