CN206362225U - A kind of utilization geothermal energy prevents the device of icy pavement of highway - Google Patents
A kind of utilization geothermal energy prevents the device of icy pavement of highway Download PDFInfo
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- CN206362225U CN206362225U CN201621086732.8U CN201621086732U CN206362225U CN 206362225 U CN206362225 U CN 206362225U CN 201621086732 U CN201621086732 U CN 201621086732U CN 206362225 U CN206362225 U CN 206362225U
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- Prior art keywords
- heat pipe
- section
- highway
- heat
- pavement
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000012530 fluid Substances 0.000 claims abstract description 25
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000012774 insulation material Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 229920002635 polyurethane Polymers 0.000 claims abstract description 5
- 239000004814 polyurethane Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 108010053481 Antifreeze Proteins Proteins 0.000 claims description 3
- 230000002528 anti-freeze Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 12
- 230000008020 evaporation Effects 0.000 description 10
- 238000001704 evaporation Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PZZOEXPDTYIBPI-UHFFFAOYSA-N 2-[[2-(4-hydroxyphenyl)ethylamino]methyl]-3,4-dihydro-2H-naphthalen-1-one Chemical compound C1=CC(O)=CC=C1CCNCC1C(=O)C2=CC=CC=C2CC1 PZZOEXPDTYIBPI-UHFFFAOYSA-N 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model, which is related to a kind of utilization geothermal energy, prevents the device of icy pavement of highway, belongs to highway traffic safety technical field.The utility model includes heat pipe condenser section, heat pipe adiabatic section, heat pipe evaporator section, thermotube shell, heat pipe cryogenic fluid；The outer surface of heat pipe adiabatic section is wrapped with insulation material, filling heat pipe cryogenic fluid inside thermotube shell, heat pipe condenser section is placed in express highway pavement layer, heat pipe evaporator section is placed in the underground of express highway pavement layer, heat pipe cryogenic fluid uses methanol, the material of thermotube shell uses copper, and insulation material uses polyurethane.The utility model can make full use of the energy heats express highway pavement in large quantities contained in soil, ensure to prevent icy pavement of highway simultaneously, and do not consume conventional energy resource.In addition, heat exchanger components use cryogenic fluid heat pipe, heat exchange efficiency is high, stable, movement-less part, without artificial operation, thus saves, can effectively reduce operating cost.
Description
Technical field
The utility model, which is related to a kind of utilization geothermal energy, prevents the device of icy pavement of highway, belongs to highway communication peace
Full technical field.
Background technology
The easy accumulated snow of autumn and winter express highway pavement freezes, and causes vehicle to be unable to normal pass, influences the peace of highway
Full property and conevying efficiency, and cause traffic accident to take place frequently, cause the massive losses of lives and properties.At present, express highway pavement
The method of deicing mainly has chemical method, artificial concentration removing method, Mechanical Method, thermal ice-melting snow dust etc..Chemical method be by
Chemical agent is dispensed on road surface to reduce ice and snow melting point, makes ice dissolution.Though simple and easy to apply, chemical method deicing effect is by ring
Border temperature influence is larger, and with anti-icing phenomenon.It is artificial concentrate removing method to ice and snow removing more thoroughly, but efficiency is low, expense
Height, influences vehicle pass-through and traffic safety during operation.Mechanical deicing snow be suitable for snowfall it is larger, freeze before large clearing make
Industry, but the fragile road surface of this method, and blizzard need to take certain effective area.Thermal ice-melting snow dust utilizes hot water, combustion gas, electricity
Heat Deng generation makes ice dissolution, such as sprays hot-water process, heating cable method, but this method power consumption is big.It can be seen that, it is existing at present
Highway remove ice and snow method have limitation., can using the method and apparatus that can prevent icy pavement of highway
Thoroughly solve the above problems.
The soil of certain depth below earth's surface, its temperature is stablized throughout the year, and temperature is higher, contains substantial amounts of geothermal energy.
On the other hand, heat pipe is as a kind of high efficient heat exchanging element, with unidirectional heat transfer, advantages of simple structure and simple.Therefore, changed using heat pipe
Heat, express highway pavement is heated using geothermal energy, can effectively prevent the easy accumulated snow of autumn and winter express highway pavement from freezing.
The content of the invention
The technical problems to be solved in the utility model is：The utility model provides one kind prevents highway using geothermal energy
Device icy on road, is on the one hand to make full use of the energy heats express highway pavement in large quantities contained in soil, it is ensured that
Prevent it from freezing simultaneously, and do not consume conventional energy resource；On the other hand automatic unidirectional heat transfer, nothing are carried out using heat pipe heat exchanging component
Moving component, without artificial operation, so as to reduce operating cost.
Technical solutions of the utility model are：A kind of utilization geothermal energy prevents the device of icy pavement of highway, including heat
Pipework condensation section 1, heat pipe adiabatic section 2, heat pipe evaporator section 3, thermotube shell 4, heat pipe cryogenic fluid 5, insulation material 7；Heat pipe is adiabatic
The outer surface of section 2 is wrapped with insulation material 7, and single heat pipe is made up of heat pipe condenser section 1, heat pipe adiabatic section 2, heat pipe evaporator section 3, heat
The inside of tube shell 4 filling heat pipe cryogenic fluid 5, heat pipe condenser section 1 is placed in express highway pavement layer 8, and heat pipe evaporator section 3 is placed in height
In the underground of fast highway pavement layer 8, heat pipe cryogenic fluid 5 uses methanol, and the material of thermotube shell 4 uses copper, thermal insulating material
Material 7 uses polyurethane.
The heat pipe cryogenic fluid 5 uses ammonia, and the material of thermotube shell 4 uses aluminium or stainless steel, and heat-pipe elements are using weight
The heat pipe of power heat pipe or belt carcass net.
The external diameter of the heat pipe can be between 15mm ~ 50mm, and heat pipe is steamed by heat pipe condenser section 1, heat pipe adiabatic section 2, heat pipe
Hair section 3 is constituted, and its total length can be between 5m ~ 40m, and the length of heat pipe condenser section 1 is smaller than the thickness of express highway pavement layer 8
100mm ~ 200mm, the length of heat pipe evaporator section 3 is between 2m ~ 5m, remaining is the length of heat pipe adiabatic section 2.
The external diameter of the single heat pipe is 40mm, anti-freeze applied to the express highway pavement that surface thickness is 1m, heat pipe
Total length is 20m, and wherein the length of heat pipe condenser section 1 is than the small 900mm of thickness of highway surface layer, the length of heat pipe evaporator section 3
For between 5m, the length of heat pipe adiabatic section 2 is 14.1m, all heat-pipe elements are buried vertically, and the top of heat pipe is located at below road surface
100mm, the spacing of heat pipe is 0.5m.
Operation principle of the present utility model is：
Under ice and snow weather, the liquid heat pipe cryogenic fluid 5 in geothermal energy heating evaporation section 3 in soil 4 makes its temperature
Raise and evaporate.The higher gaseous working medium density of temperature lightens after evaporation, rises to heat pipe condenser section 1.In heat pipe condenser section 1,
The higher gaseous working medium of temperature carries out heat exchange with express highway pavement layer 8, to heat express highway pavement, so as to prevent road surface
Freeze.Under non-ice and snow weather condition, because heat pipe is unidirectional heat transfer, when the temperature of express highway pavement layer 8 is higher than in soil 6
Temperature when, heat pipe is voluntarily out of service.
Using heat pipe as high efficient heat exchanging device, heat pipe condenser section is placed in the supercrust of highway, heat pipe evaporator section
In the underground for being placed in express highway pavement layer.Under ice and snow weather, the liquid work of the geothermal energy heating evaporation section in soil
Matter, makes its temperature raise and evaporate.The higher gaseous working medium density of temperature lightens after evaporation, rises to heat pipe condenser section.In heat
The supercrust of pipework condensation section, the higher gaseous working medium of temperature and highway carries out heat exchange, to heat express highway pavement, from
And prevent icy on road.The gaseous working medium for carrying out heat exchange with the supercrust of highway is cooled, condensed liquid refrigerant
Evaporator section is flowed back to, again by geothermal energy heating evaporation.So move in circles, the road of highway is ceaselessly heated using geothermal energy
Surface layer.Under non-ice and snow weather condition, because heat pipe is unidirectional heat transfer, the temperature in soil is higher than when the temperature of highway surface layer
When spending, heat pipe is voluntarily out of service.
Weather conditions of the express highway pavement anti-icing equipment of the present utility model according to residing for highway, by some
Heat-pipe elements are constituted.Heat-pipe elements are using gravity assisted heat pipe or the heat pipe of belt carcass net.To make the low temperature geothermal energy in soil effectively add
Hot heat-pipe working medium simultaneously makes its rapid evaporation, and heat-pipe working medium uses cryogenic fluid, such as：Ammonia, methanol etc..The external diameter of heat pipe can be in 15mm
Between ~ 50mm, the material of thermotube shell is using the manufacture of the metals such as copper, aluminium or stainless steel.Geology bar according to where highway
Part, heat pipe is made up of evaporator section, adiabatic section, condensation segment, and its total length can be between 5m ~ 40m, the wherein length of heat pipe condenser section
Than the small 100mm ~ 200mm of thickness of highway surface layer, heat pipe evaporator section length is between 2m ~ 5m, remaining is adiabatic segment length.
Adiabatic section outer surface is wrapped with insulation material.
All heat-pipe elements are buried vertically in express highway pavement anti-icing equipment of the present utility model, the top of heat pipe
100mm ~ 200mm below road surface, is damaged with preventing heat pipe from being rolled by automobile.Spacing between single heat pipe is according to height
Weather conditions, heat pipe structure size residing for fast highway are determined by thermodynamic metering.
Express highway pavement anti-icing equipment movement-less part of the present utility model, without exterior power and artificial operation,
It is stable.To the heating of express highway pavement by evaporator section low temperature liquid working medium by thermal evaporation → rising → condensation segment gaseous state
Condensation → liquid refrigerant backflow automatic cycle is carried out behind working medium heating road surface.
The beneficial effects of the utility model are：The utility model can make full use of the energy heats in large quantities contained in soil
Express highway pavement, is ensuring to prevent icy pavement of highway simultaneously, and do not consume conventional energy resource.In addition, heat exchanger components
Using cryogenic fluid heat pipe, heat exchange efficiency is high, stable, movement-less part, without artificial operation, thus can effectively reduce fortune
Row cost.The express highway pavement anti-icing equipment that the utility model is related to has energy-conservation, the low advantage of operating cost.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Each label in Fig. 1：1- heat pipe condenser sections, 2- heat pipes adiabatic section, 3- heat pipe evaporator sections, 4- thermotube shells, 5- heat pipes
Cryogenic fluid, 6- soil, 7- insulation materials, 8- express highway pavements layer.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is described in further detail.
Embodiment 1：As shown in figure 1, a kind of utilization geothermal energy prevents the device of icy pavement of highway, including heat pipe cold
Solidifying section 1, heat pipe adiabatic section 2, heat pipe evaporator section 3, thermotube shell 4, heat pipe cryogenic fluid 5, insulation material 7；Heat pipe adiabatic section 2
Outer surface is wrapped with insulation material 7, and single heat pipe is made up of heat pipe condenser section 1, heat pipe adiabatic section 2, heat pipe evaporator section 3, heat pipe shell
The inside of body 4 filling heat pipe cryogenic fluid 5, heat pipe condenser section 1 is placed in express highway pavement layer 8, and heat pipe evaporator section 3 is placed in public at a high speed
In the underground of road supercrust 8, heat pipe cryogenic fluid 5 uses methanol, and the material of thermotube shell 4 uses copper, and insulation material 7 is adopted
Use polyurethane.
The heat pipe cryogenic fluid 5 uses ammonia, and the material of thermotube shell 4 uses aluminium or stainless steel, and heat-pipe elements are using weight
The heat pipe of power heat pipe or belt carcass net.
The external diameter of the heat pipe can be between 15mm ~ 50mm, and heat pipe is steamed by heat pipe condenser section 1, heat pipe adiabatic section 2, heat pipe
Hair section 3 is constituted, and its total length can be between 5m ~ 40m, and the length of heat pipe condenser section 1 is smaller than the thickness of express highway pavement layer 8
100mm ~ 200mm, the length of heat pipe evaporator section 3 is between 2m ~ 5m, remaining is the length of heat pipe adiabatic section 2.
The external diameter of the single heat pipe is 40mm, anti-freeze applied to the express highway pavement that surface thickness is 1m, heat pipe
Total length is 20m, and wherein the length of heat pipe condenser section 1 is than the small 900mm of thickness of highway surface layer, the length of heat pipe evaporator section 3
For between 5m, the length of heat pipe adiabatic section 2 is 14.1m, all heat-pipe elements are buried vertically, and the top of heat pipe is located at below road surface
100mm, the spacing of heat pipe is 0.5m.
Under ice and snow weather, the liquid heat pipe cryogenic fluid 5 in geothermal energy heating evaporation section 3 in soil 4 makes its temperature
Raise and evaporate.The higher gaseous working medium density of temperature lightens after evaporation, rises to heat pipe condenser section 1.In heat pipe condenser section 1,
The higher gaseous working medium of temperature carries out heat exchange with express highway pavement layer 8, to heat express highway pavement, so as to prevent road surface
Freeze.Under non-ice and snow weather condition, because heat pipe is unidirectional heat transfer, when the temperature of express highway pavement layer 8 is higher than in soil 6
Temperature when, heat pipe is voluntarily out of service.
Embodiment 2：As shown in figure 1, a kind of utilization geothermal energy prevents the device of icy pavement of highway, including heat pipe cold
Solidifying section 1, heat pipe adiabatic section 2, heat pipe evaporator section 3, thermotube shell 4, heat pipe cryogenic fluid 5, insulation material 7；Heat pipe adiabatic section 2
Outer surface is wrapped with insulation material 7, and single heat pipe is made up of heat pipe condenser section 1, heat pipe adiabatic section 2, heat pipe evaporator section 3, heat pipe shell
The inside of body 4 filling heat pipe cryogenic fluid 5, heat pipe condenser section 1 is placed in express highway pavement layer 8, and heat pipe evaporator section 3 is placed in public at a high speed
In the underground of road supercrust 8, insulation material 7 uses polyurethane.
The heat pipe cryogenic fluid 5 uses ammonia, and the material of thermotube shell 4 uses aluminium or stainless steel, and heat-pipe elements are using weight
The heat pipe of power heat pipe or belt carcass net.
The external diameter of the heat pipe can be between 15mm ~ 50mm, and heat pipe is steamed by heat pipe condenser section 1, heat pipe adiabatic section 2, heat pipe
Hair section 3 is constituted, and its total length can be between 5m ~ 40m, and the length of heat pipe condenser section 1 is smaller than the thickness of express highway pavement layer 8
100mm ~ 200mm, the length of heat pipe evaporator section 3 is between 2m ~ 5m, remaining is the length of heat pipe adiabatic section 2.
Under ice and snow weather, the liquid heat pipe cryogenic fluid 5 in geothermal energy heating evaporation section 3 in soil 4 makes its temperature
Raise and evaporate.The higher gaseous working medium density of temperature lightens after evaporation, rises to heat pipe condenser section 1.In heat pipe condenser section 1,
The higher gaseous working medium of temperature carries out heat exchange with express highway pavement layer 8, to heat express highway pavement, so as to prevent road surface
Freeze.Under non-ice and snow weather condition, because heat pipe is unidirectional heat transfer, when the temperature of express highway pavement layer 8 is higher than in soil 6
Temperature when, heat pipe is voluntarily out of service.
Specific embodiment of the utility model is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited
In above-described embodiment, in the knowledge that those of ordinary skill in the art possess, the utility model can also not departed from
Various changes can be made on the premise of objective.
Claims (4)
1. a kind of utilization geothermal energy prevents the device of icy pavement of highway, it is characterised in that：Including heat pipe condenser section（1）、
Heat pipe adiabatic section（2）, heat pipe evaporator section（3）, thermotube shell（4）, heat pipe cryogenic fluid（5）, insulation material（7）；Heat pipe is adiabatic
Section（2）Outer surface be wrapped with insulation material（7）, single heat pipe is by heat pipe condenser section（1）, heat pipe adiabatic section（2）, heat pipe evaporator section
（3）Composition, thermotube shell（4）The inside fills heat pipe cryogenic fluid（5）, heat pipe condenser section（1）It is placed in express highway pavement layer
（8）, heat pipe evaporator section（3）It is placed in express highway pavement layer（8）Underground in, heat pipe cryogenic fluid（5）Using methanol, heat
Tube shell（4）Material use copper, insulation material（7）Using polyurethane.
2. utilization geothermal energy according to claim 1 prevents the device of icy pavement of highway, it is characterised in that：It is described
Heat pipe cryogenic fluid（5）Using ammonia, thermotube shell（4）Material use aluminium or stainless steel, heat-pipe elements using gravity assisted heat pipe or
The heat pipe of belt carcass net.
3. utilization geothermal energy according to claim 1 prevents the device of icy pavement of highway, it is characterised in that：It is described
The external diameter of heat pipe can be between 15mm ~ 50mm, and heat pipe is by heat pipe condenser section（1）, heat pipe adiabatic section（2）, heat pipe evaporator section（3）Group
Into its total length can be between 5m ~ 40m, heat pipe condenser section（1）Length than express highway pavement layer（8）The small 100mm of thickness
~ 200mm, heat pipe evaporator section（3）Length is between 2m ~ 5m, remaining is heat pipe adiabatic section（2）Length.
4. utilization geothermal energy according to claim 1 or 2 prevents the device of icy pavement of highway, it is characterised in that：
The external diameter of the single heat pipe is 40mm, and anti-freeze for 1m express highway pavement applied to surface thickness, heat pipe total length is
20m, wherein heat pipe condenser section（1）Thickness small 900mm of the length than highway surface layer, heat pipe evaporator section（3）Length is 5m,
Heat pipe adiabatic section（2）Length is 14.1m, and all heat-pipe elements are buried vertically, and the top of heat pipe is located at 100mm below road surface,
The spacing of heat pipe is 0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621086732.8U CN206362225U (en) | 2016-09-28 | 2016-09-28 | A kind of utilization geothermal energy prevents the device of icy pavement of highway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621086732.8U CN206362225U (en) | 2016-09-28 | 2016-09-28 | A kind of utilization geothermal energy prevents the device of icy pavement of highway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206362225U true CN206362225U (en) | 2017-07-28 |
Family
ID=59369508
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621086732.8U Expired - Fee Related CN206362225U (en) | 2016-09-28 | 2016-09-28 | A kind of utilization geothermal energy prevents the device of icy pavement of highway |
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| Country | Link |
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| CN (1) | CN206362225U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871022A (en) * | 2018-08-22 | 2018-11-23 | 天津城建大学 | The buried gravity assisted heat pipe of big L/D ratio stage evaporation type |
| CN109295834A (en) * | 2018-11-23 | 2019-02-01 | 黑龙江省九0四环境工程勘察设计院 | A kind of cold area's pavement snow melting system |
| CN110285698A (en) * | 2019-07-23 | 2019-09-27 | 阳泉煤业（集团）有限责任公司 | A kind of colliery automatic heat preserving system |
| CN114657839A (en) * | 2022-05-07 | 2022-06-24 | 浙江华东工程建设管理有限公司 | Easily maintain road surface based on geothermol power water conservancy diversion |
| CN115162091A (en) * | 2022-08-03 | 2022-10-11 | 宁夏启辰智能低碳科技有限公司 | High-frost-resistance fly ash-based pervious concrete pavement |
-
2016
- 2016-09-28 CN CN201621086732.8U patent/CN206362225U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871022A (en) * | 2018-08-22 | 2018-11-23 | 天津城建大学 | The buried gravity assisted heat pipe of big L/D ratio stage evaporation type |
| CN109295834A (en) * | 2018-11-23 | 2019-02-01 | 黑龙江省九0四环境工程勘察设计院 | A kind of cold area's pavement snow melting system |
| CN110285698A (en) * | 2019-07-23 | 2019-09-27 | 阳泉煤业（集团）有限责任公司 | A kind of colliery automatic heat preserving system |
| CN114657839A (en) * | 2022-05-07 | 2022-06-24 | 浙江华东工程建设管理有限公司 | Easily maintain road surface based on geothermol power water conservancy diversion |
| CN115162091A (en) * | 2022-08-03 | 2022-10-11 | 宁夏启辰智能低碳科技有限公司 | High-frost-resistance fly ash-based pervious concrete pavement |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20190928 |
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| CF01 | Termination of patent right due to non-payment of annual fee |