CN106050278A - Electric-tracing-band homogenization heat-transmission-type tunnel heat-preservation anti-freezing heat homogenizing plate - Google Patents
Electric-tracing-band homogenization heat-transmission-type tunnel heat-preservation anti-freezing heat homogenizing plate Download PDFInfo
- Publication number
- CN106050278A CN106050278A CN201610614933.9A CN201610614933A CN106050278A CN 106050278 A CN106050278 A CN 106050278A CN 201610614933 A CN201610614933 A CN 201610614933A CN 106050278 A CN106050278 A CN 106050278A
- Authority
- CN
- China
- Prior art keywords
- heat
- electric
- heat transfer
- transfer plate
- transmission plate
- Prior art date
- 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.)
- Pending
Links
- 238000007710 freezing Methods 0.000 title abstract description 12
- 238000004321 preservation Methods 0.000 title abstract description 10
- 238000000265 homogenisation Methods 0.000 title abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 230000002528 anti-freeze Effects 0.000 claims abstract description 19
- 239000003292 glue Substances 0.000 claims abstract description 5
- 238000002791 soaking Methods 0.000 claims description 51
- 238000005485 electric heating Methods 0.000 claims description 49
- 238000003466 welding Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 13
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 23
- 238000010586 diagram Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229920001169 thermoplastic Polymers 0.000 description 5
- 239000004416 thermosoftening plastic Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000009746 freeze damage Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides an electric-tracing-band homogenization heat-transmission-type tunnel heat-preservation anti-freezing heat homogenizing plate. The electric-tracing-band homogenization heat-transmission-type tunnel heat-preservation anti-freezing heat homogenizing plate comprises an electric tracing band, a heat transmission plate, a bearing column and a wiring terminal. The electric tracing band comprises two tracing-band core wires, and the ends of the tracing-band core wires and connecting part of the wiring terminal are pressed to be welded and fixed; the heat transmission plate comprises an upper heat transmission plate body and a lower heat transmission plate body, and the bearing column is arranged between the upper heat transmission plate body and the lower heat transmission plate body; the electric tracing band is laid around the bearing column with the lower heat transmission plate body or the upper heat transmission plate body as a laying face; space between the electric tracing band is coated and filled with heat-conducting glue, rivets penetrate through the bearing column, and the upper heat transmission plate body and the lower heat transmission plate body are integrally fixed; installing holes are oppositely formed in the upper heat transmission plate body and the lower heat transmission plate body; the heat transmission plate is laid between the tunnel secondary-lining surface needing to be heated, subjected to heat preservation and resist to antifreeze and a heat insulation layer; when the electric-tracing-band homogenization heat-transmission-type tunnel heat-preservation anti-freezing heat homogenizing plate is used, the temperature heating field is even in distribution, local heat dissipation losses are small, heating efficiency is high, and the using cost can be reduced.
Description
Technical field
The invention belongs to tunnel insulation freezing proof technique field, relate to a kind of electric-heating belt homogenizing heat transfer type tunnel insulation antifreeze
Soaking plate.
Background technology
The common freeze injury of tunnel in cold area shows as secondary lining and leaks, hangs and emit water, accumulated ice, frost heave, cracking, shortcake at the bottom of ice, tunnel
The situations such as broken, peeling, it the most not only can bring danger to traffic safety, on the other hand be also possible to cause brokenly tunnel structure
Bad, such as the air slaking of lining concrete surface, vault cracking, sidewall extrusion etc..When temperature is less than zero degree behind for secondary lining, will lead
Cause country rock infiltration to freeze or impeded drainage, make country rock freeze-thaw cycle accelerate the destruction to Tunnel Second Lining.
At present, for prevent tunnel occur above-mentioned freeze injury, tunnel insulation anti-freezing method for mainly has: heat-supplying method, winter protection door method,
Heat-insulation and heat-preservation method and electrical heat tracing method.Wherein, heat-supplying method, electrical heating belong to the antifreeze method of active heat-insulating, heat-insulation and heat-preservation method
Then belong to passive type heat-preserving anti-freezing measure.The subject matter that said method exists is, the energy expenditure needed for tunnel heat-supplying method is big,
Vehicle is run by winter protection door method interference;The most commonly used heat-insulation and heat-preservation method, i.e. directly applies on lining concrete surface
If insulating, its thickness laying insulating is usually to be come really by the average temperature of the whole year condition of region residing for tunnel
Fixed, there is no assurance that the heat-preserving anti-freezing effect under the conditions of extreme low temperature.Additionally, it is also proposed that a kind of electrical heat tracing method, will
Electric-heating belt by roundabout reciprocal in the way of be directly laid between secondary lining surface and insulating;But, use this
When electric-heating belt area that method is laid is bigger, the length of electric-heating belt is consequently increased, the electrical power needed for heating and thermal insulation
To increase;And so lay electric-heating belt and there is the heating of wire thermal source, the heat conduction efficiency only relying on secondary lining is low;With
Time, owing to the strand of hot source temperature of electric-heating belt is of a relatively high, locally radiation loss is relatively big, causes capacity usage ratio the highest.
Summary of the invention
It is an object of the invention to provide a kind of electric-heating belt homogenizing heat transfer type tunnel insulation antifreeze for tunnel insulation
Antifreeze soaking plate.
The technical solution used in the present invention is: the described electric-heating belt homogenizing antifreeze soaking plate of heat transfer type tunnel insulation, bag
Containing electric-heating belt, heat transfer plate, support column and binding post;Electric-heating belt has two heating tape heart yearns, heating tape heart yearn
After the connecting portion of end and binding post compresses, welding is fixed;Heat transfer plate comprises heat transfer plate and lower heat transfer plate, upper heat transfer plate
And equipped with support column between lower heat transfer plate;Following heat transfer plate or upper heat transfer plate, for laying face, lay electric-heating belt around support column,
Space coating between electric-heating belt being filled up with heat-conducting glue, rivet passes support column, upper heat transfer plate and lower heat transfer plate is fixed
Integral;It is correspondingly arranged on installing hole on upper heat transfer plate and lower heat transfer plate;Heat transfer plate is laid in the tunnel needing heating and thermal insulation antifreeze
Between secondary lining surface, road and insulating;The power supply of electric-heating belt can use normal domestic electric power system, solar-electricity
Pond or wind-powered electricity generation electric power system.
The technical solution used in the present invention operation principle is: described electric-heating belt homogenizing heat transfer type tunnel insulation is antifreeze all
The heated for controlling temperature process of hot plate is: utilize heat transfer plate to have the feature of relatively high heat-transfer performance, " wire " formed by electric-heating belt
Formula pyrotoxin becomes the heating of " planar " formula thermal source, i.e. by the rapid heat transfer of heat transfer plate, makes formation around electric-heating belt cable
The temperature field that wire thermal source is of a relatively high, becomes relatively uniform temperature field in heat transfer plate areal extent;It addition, employing automatic control
Temperature formula electric-heating belt, utilizes electric-heating belt just to haveTemperature coefficientCharacteristic, i.e. materialResistivityIncrease in direct ratio with temperature rise, can
Along with the change of heating-up temperature is automatically adjusted heating power, the active tunnel insulation with Self Adaptive Control heating-up temperature is antifreeze
Heating system characteristic.
The technical scheme that the present invention proposes provides the benefit that: first, and described technical scheme is antifreeze relative to tunnel insulation
The heat-supplying method taked, can significantly save energy resource consumption the change Autonomous Control heating and thermal insulation according to ambient tunnel temperature
Degree;Second, described technical scheme taked winter protection door method antifreeze relative to tunnel insulation, its to vehicle by tunnel time
Running is noiseless, and the management of the process of use is simple and convenient;3rd, described technical scheme institute antifreeze relative to tunnel insulation
The heat-insulation and heat-preservation method taked, the effect of its heat-preserving anti-freezing can regulate with Autonomous Control in certain temperature range, with heat-insulation and heat-preservation
Heat-preserving anti-freezing ability can be promoted when method is used in combination;4th, described technical scheme is antifreeze relative to tunnel insulation taked
Under secondary lining surface with insulating, directly lay the electrical heat tracing method of electric-heating belt, there is heating-up temperature field distribution
Uniformly, locally radiation loss is little, and the efficiency of heating surface is high, advantageously reduces use cost;5th, described technical scheme is possible not only to should
Arbitrarily need to strengthen the region of heat-preserving anti-freezing for newly built tunnels, and can be used for the heat-preserving anti-freezing system of established tunnel
Upgrading.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the present invention is described in further detail:
Fig. 1 be single-ended single lead-in wire electric-heating belt soaking plate of the present invention face sectional structure chart;
Fig. 2 is the left view sectional structure chart of single-ended single electric-heating belt soaking plate that goes between of the present invention;
Fig. 3 is the plan structure figure of single-ended single electric-heating belt soaking plate that goes between of the present invention;
Fig. 4 is single-ended double lead electric-heating belt soaking plate wiring diagram of the present invention;
Fig. 5 is both-end list of the present invention lead-in wire electric-heating belt soaking plate wiring diagram;
Fig. 6 is both-end double lead electric-heating belt soaking plate wiring diagram of the present invention;
Fig. 7 is the wiring diagram in parallel of single-ended single electric-heating belt soaking plate that goes between of the present invention;
Fig. 8 is the series-parallel connection figure of both-end list of the present invention lead-in wire electric-heating belt soaking plate;
Fig. 9 is that electric-heating belt soaking plate of the present invention lays schematic diagram along tunnel cross section at Partial Height;
Figure 10 is the electric-heating belt soaking plate of the present invention installation fixed form schematic diagram on tunnel wall.
In figure, 1 is binding post, and 2 is heating tape heart yearn, and 3 is thermoplastic tube, and 4 is electric-heating belt, and 5 is rivet, and 6 is supporting
Post, 7 is upper heat transfer plate, and 8 is lower heat transfer plate, and 9 is heat-conducting glue, and 10 is installing hole, and 11 is heating controller, and 12 is electric wire, and 13 are
Rosette, 14 is secondary lining, and 15 is insulating, and 16 is tunnel road surface, 17 tunnel inverted arch, and 18 is expansible stopper, and 19 is certainly
Attacking nail, I is single-ended single lead-in wire soaking plate, and II is single-ended double lead soaking plate, and III is both-end list lead-in wire soaking plate, and IV is that both-end is double
Lead-in wire soaking plate.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the technical scheme in the embodiment of the present invention is described.
As shown in Figure 1, Figure 2, Figure 3 shows, single-ended single lead-in wire soaking plate of the present invention includes binding post 1, electric tracing
Band 4, heat transfer plate and support column;Electric-heating belt 4 has two heating tape heart yearns 2, and a heating tape heart yearn 2 therein is independent from electricity
The two ends of heating tape 4 are drawn respectively, and after the connecting portion of the end of heating tape heart yearn 2 and binding post 1 compresses, welding is fixed;?
Binding post 1 root and electric-heating belt 4 end cladding thermoplastic tube 3, the extension of heating tape heart yearn 2 is the most also coated with thermoplastic tube
3, thermoplastic tube 3 has insulating effect;The laying the number of turns, lay length and lay spacing, according to the design of soaking plate of electric-heating belt 4
The area of power and soaking plate determines;Heat transfer plate comprise heat transfer plate 7 and lower heat transfer plate 8, upper heat transfer plate 7 and lower heat transfer plate 8 it
Between equipped with support column 6, on the one hand play the supporting upper heat transfer plate 7 of isolation and lower heat transfer plate 8, the most also have and fixing limit electricity
The effect of the longitudinal lay length of heating tape 4;Following heat transfer plate 8 or upper heat transfer plate 7, for laying face, lay electricity companion around support column 6
The torrid zone 4;After electric-heating belt 4 has laid, with heat-conducting glue 9, the space coating between electric-heating belt 4 is filled up, there is increase heat conduction
Property and make the thermo parameters method of whole single-ended single lead-in wire soaking plate I tend to the effect of homogenization;Rivet 5 is through support column 6, by upper
Heat transfer plate 7 and lower heat transfer plate 8 are integrally fixed;It is correspondingly arranged on installing hole 10, heat transfer plate on upper heat transfer plate 7 and lower heat transfer plate 8
It is laid between Tunnel Second Lining 14 surface and insulating 15 needing heating and thermal insulation antifreeze.
As shown in Figure 4, the composition structure of single-ended double lead soaking plate II of the present invention, itself and the soaking of single-ended single lead-in wire
The composition structure of plate I is identical, but the lead-out mode of the two of electric-heating belt 4 heating tape heart yearns 2 is different, i.e. for single-ended double lead
The extraction of the heating tape heart yearn 2 of soaking plate II is one end wherein, and two heating tape heart yearns 2 of electric-heating belt 4 draw in same one end
Going out, other end thermoplastic tube cladding closes insulation.
As it is shown in figure 5, the composition structure of both-end list of the present invention lead-in wire soaking plate III, itself and the soaking of single-ended single lead-in wire
The composition structure of plate I is identical, but the lead-out mode of the two of electric-heating belt 4 heating tape heart yearns 2 is different, i.e. goes between for both-end list
The extraction of the heating tape heart yearn 2 of soaking plate III is at two ends, and two heating tape heart yearns 2 of electric-heating belt 4 are independent at two ends respectively
Draw.
As shown in Figure 6, the composition structure of both-end double lead soaking plate IV of the present invention, itself and the soaking of single-ended single lead-in wire
The composition structure of plate I is identical, but the lead-out mode of the two of electric-heating belt 4 heating tape heart yearns 2 is different, i.e. for both-end double lead
The extraction of the heating tape heart yearn 2 of soaking plate IV is at two ends, and two heating tape heart yearns 2 of electric-heating belt 4 are at two ends the most each
Draw.
As it is shown in figure 5, be that the one of single-ended single lead-in wire soaking plate I of the present invention is for electric connection mode, rosette 13
By two electric wires 12, two heating tape heart yearns 2 of single-ended single lead-in wire soaking plate I are connect with parallel way with heating controller 11
Line, is characterized in that the heating process of each single-ended single lead-in wire soaking plate I is not affected by the state of temperature of other soaking plate, its heating
Process has independence, and the number of parallel of single-ended single lead-in wire soaking plate I needs to determine according to design.
As shown in Figure 6, it is that the one of both-end list of the present invention lead-in wire soaking plate II supplies electric connection mode, uses rosette
13 are first cascaded by the binding post 1 of two both-end list lead-in wire respective one end of soaking plate II;The most again by two
Both-end list lead-in wire soaking plate II respective other end of binding post 1 rosette 13 connects with parallel way with two electric wires 12
Line;Two electric wires 12 are connected by rosette 13 with heating controller 11 again;It is characterized in that both-end list lead-in wire soaking plate II is first gone here and there
Parallel connection again after connection, it is possible to decrease heating power, reduces energy expenditure.
As it is shown in fig. 7, be single-ended single lead-in wire soaking plate I of the present invention along tunnel wall in short transverse (transverse section)
A kind of mode laid, single-ended single lead-in wire soaking plate I is fixed between secondary lining 14 and insulating 15, and it applies
If height is determined by design, and the both-end list lead-in wire soaking plate II of other types lead-in wire, both-end list lead-in wire soaking plate III and double
End double lead soaking plate IV grade is laid too.
As shown in Figure 8, it is that single-ended single lead-in wire soaking plate I of the present invention installs fixing one on tunnel wall
Mode, first on secondary lining 14 surface by laying Position Design requirement boring, squeezes into expansible stopper 18 in hole;Secondly by single-ended
Single lead-in wire soaking plate I is placed on the position that installing hole 10 is directed at expansible stopper 18, is screwed into self threading pin 19 by single-ended single lead-in wire all
Hot plate I is fixed on the surface of secondary lining 14;Finally, when all single-ended single lead-in wire soaking plate I that should lay all has been fixed,
And supply line connected and tested inspection after lay insulating 15 again.
Although the preferred embodiments of the present invention being described above in association with accompanying drawing, but the invention is not restricted to above-mentioned specifically
Embodiment, above-mentioned detailed description of the invention is only exemplary rather than determinate, and those of ordinary skill in the art exists
Under the enlightenment of the present invention, on the premise of present inventive concept and claim, represent as multiple types can be made, this
Within the conversion of sample each falls within protection scope of the present invention.
Claims (3)
1. the antifreeze soaking plate of electric-heating belt homogenizing heat transfer type tunnel insulation, includes electric-heating belt (4), heat transfer plate, supporting
Post (6) and binding post (1), it is characterised in that described electric-heating belt (4) has two heating tape heart yearns (2), described heating tape
After the connecting portion of the end of heart yearn (2) and described binding post (1) compresses, welding is fixed;Described heat transfer plate comprises heat transfer plate
(7) and lower heat transfer plate (8), equipped with described support column (6) between described upper heat transfer plate (7) and described lower heat transfer plate (8);With described
Lower heat transfer plate (7) or described upper heat transfer plate (8), for laying face, lay described electric-heating belt (4) around described support column (6), use
Space between described electric-heating belt (4) is coated and fills up by heat-conducting glue (9);Rivet (5) passes described support column (6), by described
Upper heat transfer plate (7) and lower heat transfer plate (8) are integrally fixed.
The electric-heating belt homogenizing antifreeze soaking plate of heat transfer type tunnel insulation the most according to claim 1, it is characterised in that described
The installing hole (10) when tunnel surface is installed it is correspondingly arranged on upper heat transfer plate (7) and described lower heat transfer plate (8).
The electric-heating belt homogenizing antifreeze soaking plate of heat transfer type tunnel insulation the most according to claim 1, it is characterised in that described
Heat transfer plate is laid between Tunnel Second Lining (14) surface and insulating (15) needing heating and thermal insulation antifreeze.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610614933.9A CN106050278A (en) | 2016-07-31 | 2016-07-31 | Electric-tracing-band homogenization heat-transmission-type tunnel heat-preservation anti-freezing heat homogenizing plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610614933.9A CN106050278A (en) | 2016-07-31 | 2016-07-31 | Electric-tracing-band homogenization heat-transmission-type tunnel heat-preservation anti-freezing heat homogenizing plate |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106050278A true CN106050278A (en) | 2016-10-26 |
Family
ID=57196926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610614933.9A Pending CN106050278A (en) | 2016-07-31 | 2016-07-31 | Electric-tracing-band homogenization heat-transmission-type tunnel heat-preservation anti-freezing heat homogenizing plate |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106050278A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110080805A (en) * | 2019-04-17 | 2019-08-02 | 黑龙江建筑职业技术学院 | The heat insulation and heating equipment and application method used under culvert low temperature environment |
CN112054765A (en) * | 2020-08-27 | 2020-12-08 | 平潭煜想时代科技有限公司 | Solar collector power generation method, solar collector and computer equipment |
CN117171481A (en) * | 2023-10-30 | 2023-12-05 | 江苏泽源电力科技有限公司 | Construction method for realizing freezing prevention and heat preservation of reservoir by utilizing electric tracing band |
-
2016
- 2016-07-31 CN CN201610614933.9A patent/CN106050278A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110080805A (en) * | 2019-04-17 | 2019-08-02 | 黑龙江建筑职业技术学院 | The heat insulation and heating equipment and application method used under culvert low temperature environment |
CN110080805B (en) * | 2019-04-17 | 2021-03-05 | 黑龙江建筑职业技术学院 | Heat preservation heating device used in culvert low-temperature environment and use method |
CN112054765A (en) * | 2020-08-27 | 2020-12-08 | 平潭煜想时代科技有限公司 | Solar collector power generation method, solar collector and computer equipment |
CN117171481A (en) * | 2023-10-30 | 2023-12-05 | 江苏泽源电力科技有限公司 | Construction method for realizing freezing prevention and heat preservation of reservoir by utilizing electric tracing band |
CN117171481B (en) * | 2023-10-30 | 2023-12-26 | 江苏泽源电力科技有限公司 | Construction method for realizing freezing prevention and heat preservation of reservoir by utilizing electric tracing band |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109209449B (en) | Intelligent heat preservation system for railway tunnel in cold region and control method thereof | |
CN204329125U (en) | A kind of floor heating module | |
CN103216879B (en) | A kind of tunnel heat supply winterization system | |
CN203983360U (en) | Power battery box of electric vehicle heater | |
CN103233410B (en) | A kind of permeable asphalt cement concrete road surface structure with heating function | |
CN106050278A (en) | Electric-tracing-band homogenization heat-transmission-type tunnel heat-preservation anti-freezing heat homogenizing plate | |
CN205876355U (en) | Frostproofing soaking board of electric tracing area homogenization heat transfer formula tunnel heat preservation | |
CN107975859A (en) | A kind of regenerative electrochemical geothermal system | |
CN210219028U (en) | Anti-freezing water supply pipeline | |
CN217232159U (en) | Wind power accumulation system for auxiliary heating of water delivery channel in cold region in cold period | |
CN203366831U (en) | Anti-freezing rain power transmission line | |
CN106592886A (en) | Snow thawing and power generation module with controllable-temperature heating and solar power generation functions and snow thawing roof system | |
CN214366116U (en) | Railway tunnel active anti-freezing system in seasonally frozen soil area | |
CN107044678A (en) | The buried direct Radiant Floor Heating System of gravity assisted heat pipe | |
CN105135704A (en) | Solar flat-plate collector adopting electric tracing bands for auxiliary heating | |
CN201438003U (en) | Hydropower dual-purpose instant assembled dry-wet thin ground heating module | |
CN208219327U (en) | A kind of temperature and humidity control system for frozen ground regions road structure | |
CN209040344U (en) | A kind of Novel energy-saving wall of building | |
CN205079489U (en) | Utilize superconductive hot pin to absorb integrated supply system of energy of ground source heat | |
CN201285181Y (en) | Anti-freezing defrosting apparatus for pipes of solar water heater | |
CN205489396U (en) | Ice -melt device for cable ice removing | |
CN117306607A (en) | Device is frozen to anti frost heaving of passive temperature PHC tubular pile | |
CN113488856A (en) | Outdoor overground transformer box structure | |
CN219809008U (en) | Tunnel insulation construction based on material differential coefficient of heat conductivity | |
CN204940060U (en) | A kind of Novel road body structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |
|
WD01 | Invention patent application deemed withdrawn after publication |