CN108611950B - Road snow melting system for old road reconstruction of inorganic medium heat pipe and construction method - Google Patents
Road snow melting system for old road reconstruction of inorganic medium heat pipe and construction method Download PDFInfo
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- CN108611950B CN108611950B CN201810448096.6A CN201810448096A CN108611950B CN 108611950 B CN108611950 B CN 108611950B CN 201810448096 A CN201810448096 A CN 201810448096A CN 108611950 B CN108611950 B CN 108611950B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
Abstract
A road snow melting system for old road reconstruction of a road by inorganic medium heat pipes and a construction method thereof comprise the road, wherein a plurality of drill holes are vertically arranged downwards from the surface of the road; the heat absorption section of the inorganic medium heat pipe extends into a stratum constant temperature layer of the highway, and the heat dissipation section of the inorganic medium heat pipe is positioned on a pavement layer and a roadbed layer of the highway; the heat pipe protection frame is sequentially provided with a protection layer shell, a heat insulation rubber layer and a heat conduction resin layer from outside to inside, and a heat dissipation section of the inorganic medium heat pipe is positioned in the package of the heat conduction resin layer; and the upper end face of the heat-conducting resin layer of the heat pipe protection frame is provided with a protection steel plate in the horizontal direction. The invention improves a ground temperature heat pipe road snow melting system for an old road of a highway and designs a protective frame of a heat pipe heat dissipation section, so that the heat of the heat dissipation section can be effectively concentrated on a middle road surface, and continuous snow melting and ice melting can be realized.
Description
Technical Field
The invention relates to an inorganic medium heat pipe road snow melting system for old road reconstruction and a construction method.
Background
By 2016, the total highway mileage of China is 469.63 kilometers, wherein the highway mileage is 13.1 kilometers, a smooth, efficient, safe and green modern traffic transportation system is established, and the method is a powerful guarantee for realizing the construction of national transportation channels. The ice and snow weather is an important factor causing traffic accidents on the highway, and particularly, the large-scale traffic paralysis of the highway network can be caused in the large-scale rain and snow weather, so that huge economic loss is caused. The ice and snow layer is easily formed on the surface of the highway in rainy and snowy weather, the friction coefficient of the automobile running on the road surface is reduced rapidly, the maneuverability and the braking effect of the automobile are poor, and finally the automobile slips out of control during running, so that serious traffic accidents are caused.
Particularly, the designed and constructed highway does not consider a corresponding method for melting snow and ice, and a snow melting agent is generally used for melting snow. The snow melting agent causes serious corrosion and damage to the road surface, and meanwhile, the snow melting agent is melted in water, so that great harm is generated to the surrounding ecological environment. In order to improve the current situation of snow melting and ice melting of the highway, reduce the secondary corrosion of the highway and prolong the service life of the established highway, a new method for melting snow and ice is needed.
Disclosure of Invention
The invention aims to provide an inorganic medium heat pipe anti-pressure-torsion protection supporting frame for highway snow melting, an inorganic medium heat pipe anti-pressure-torsion protection supporting highway snow melting system and a construction method thereof, aiming at solving the problems of various damages of the existing heat pipe system for highway slope snow melting in the using process, including the damages of extrusion, bending and torsion and the like of a highway on a road surface.
In order to achieve the purpose, the design adopts the following scheme:
an inorganic medium heat pipe road snow melting system for old road reconstruction of a road comprises:
the road is provided with a plurality of drill holes vertically downwards from the surface of the road;
the heat absorption section of the inorganic medium heat pipe extends into a stratum constant temperature layer of the highway, and the heat dissipation section of the inorganic medium heat pipe is positioned on a pavement layer and a roadbed layer of the highway;
the heat pipe protection frame is arranged at an orifice of the drill hole, the heat pipe protection frame is sequentially provided with a protection layer shell, a heat insulation rubber layer and a heat conduction resin layer from outside to inside, and a heat dissipation section of the inorganic medium heat pipe is positioned in a package of the heat conduction resin layer; the upper end face of the heat-conducting resin layer of the heat pipe protection frame is provided with a protection steel plate in the horizontal direction, and the upper surface of the protection steel plate is abutted to the upper surface of the pavement layer of the road;
the protective layer shell of the heat pipe protective frame comprises a flared opening matched with a drill hole and a coaxial sleeve connected with a lower opening of the flared opening, a heat-conducting rubber layer is further arranged between the protective steel plate and the upper end face of the heat-conducting resin layer, a plurality of first grooves are arranged in the vertical direction on the edge of the cross section of the upper opening of the flared opening, a plurality of first bosses are arranged on the protective steel plate and the edge joint portion of the cross section of the upper opening of the flared opening, and a compression spring is arranged between the first bosses.
And the protective steel plate is provided with a plurality of radiating fins.
A construction method for reforming an inorganic medium heat pipe road snow melting system from an old road of a highway comprises the following steps:
(1) calculating the working area of the heat pipes for effectively melting snow according to the effective heat dissipation area of the heat pipes, and determining the distance between the two rows of heat pipes;
(2) drilling holes on the surface of the highway according to the geographical coordinate position of the surface of the highway determined in the step (1), wherein the depth of the holes is 6-8 m from a stratum constant temperature layer below the highway;
(3) vertically placing the inorganic medium heat pipe in the hole, enabling the heat absorption section of the inorganic medium heat pipe to abut against a stratum constant temperature layer below the highway, and enabling the heat dissipation section of the inorganic medium heat pipe to be located on a pavement layer and a roadbed layer of the highway; backfilling concrete to fix the inorganic medium heat pipe, sleeving a coaxial sleeve below the bell mouth of a protective layer shell of the heat pipe protective frame on the heat dissipation section of the inorganic medium heat pipe, and enabling the upper mouth of the bell mouth to be flush with the pavement layer of the road in an abutting mode; the heat-insulating rubber layer and the heat-conducting resin layer are sequentially filled in the protective layer shell from outside to inside, and the heat-conducting resin layer is wrapped outside the heat dissipation section of the inorganic medium heat pipe;
(4) mounting a protective steel plate at the upper opening of the bell mouth of the protective layer shell of the heat pipe protective frame along the pavement layer direction, and backfilling a pavement layer and a pavement layer; the upper surface of the protective steel plate is abutted against the upper surface of the pavement layer of the highway.
Through design calculation, obtaining design point positions on the highway pavement, drilling holes with corresponding depths according to the point positions, vertically placing the heat pipes in the holes, and enabling the heat absorption sections of the heat pipes to be located on a stratum constant temperature layer; exhausting air in the holes, backfilling, grouting and fixing the heat pipe, and tightly combining the heat pipe with soil to keep good heat conductivity; the heat pipe protection frame is arranged in a road surface roadbed layer and a road surface layer, a protection steel plate is installed on the upper portion of the heat pipe protection frame and is abutted and flushed with the road surface layer of a road, heat exchange is carried out on a heat dissipation section, passing through a heat conduction resin layer, of the protection steel plate protection frame, of the heat pipe, the heat of a stratum thermostatic layer in the deep roadbed is transferred to the road surface layer of the road through the heat pipe, snow on the road surface is melted, in addition, the heat pipe protection frame is further prevented from being accidentally impacted by the inorganic medium heat pipe, the heat conduction rubber layer is further arranged between the upper end faces of the protection steel plate and the heat conduction resin layer, and meanwhile, a compression spring is arranged between the protection steel plate and the protection frame, so that the impact of the road surface on the inorganic medium heat pipe can be further absorbed. Is favorable for prolonging the service life of the inorganic medium heat pipe. After the construction, the scheme can quickly recover the road on the road surface, so that the road surface is smooth and can normally pass; the heat pipe can work normally in winter, and under an ideal condition, the temperature of the road surface is kept above the freezing point, so that the effect of melting snow on the road surface is achieved.
The beneficial effects of the invention adopting the technical scheme are as follows:
1. the invention provides a feasible operation method for melting snow and ice in the reconstruction of the old road of the expressway;
2. the geothermal heat pipe can realize active continuous snow melting and ice melting on the road surface;
3. aiming at the special condition of the highway, the protective frame of the heat pipe radiating section is designed, the stress protection of the heat pipe is realized,
4. the designed heat pipe heat dissipation section frame can effectively concentrate heat of the heat dissipation section on a middle road surface, and continuous snow melting and ice melting are realized;
additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a cross-sectional schematic view of a pavement embodying the present invention;
FIG. 2 is a partial schematic view of a heat pipe protective frame of the present invention;
FIG. 3 is another partial schematic view of the heat pipe protective frame of the present invention;
FIG. 4 is an enlarged partial schematic view of the compression spring of FIG. 3;
FIG. 5 is a schematic of the inventive road paving;
the heat pipe comprises a pavement layer 1, a roadbed layer 2, an inorganic medium heat pipe 3, a stratum temperature changing layer 4, a stratum constant temperature layer 5, a heat pipe protective frame 6, a heat dissipation section 7, a heat insulation section 8, a heat absorption section 9, a protective steel plate 10, a heat conduction resin layer 11, a heat insulation rubber layer 12, a protective layer shell 13, a compression spring 14, a first groove 15, a first boss 16, a heat conduction rubber layer 17 and a coaxial sleeve 18.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 to 2 and 5, an inorganic medium heat pipe road snow melting system for old road reconstruction is provided, which comprises
The road is provided with a plurality of drill holes vertically downwards from the surface of the road;
the heat-absorbing section 9 of the inorganic medium heat pipe 3 extends into the stratum constant-temperature layer 5 of the highway, and the heat-radiating section 7 of the inorganic medium heat pipe 3 is positioned on the pavement layer 1 and the roadbed layer 2 of the highway; the inorganic medium heat pipe 3 comprises an upper heat dissipation section 7, a lower heat absorption section 9 and a heat insulation section 8 positioned between the heat dissipation section 7 and the heat absorption section 9, wherein the heat insulation section 8 is positioned in the stratum temperature change layer 4, and as can be seen from fig. 1, the stratum temperature change layer 4 is positioned below the roadbed layer 2 of the highway and above the stratum constant temperature layer 5.
The heat pipe protection frame 6 is installed at an orifice of the drilled hole, the heat pipe protection frame 6 is sequentially provided with a protection layer shell 13, a heat insulation rubber layer 12 and a heat conduction resin layer 11 from outside to inside, and the heat dissipation section 7 of the inorganic medium heat pipe 3 is positioned in the package of the heat conduction resin layer 11; the upper end face of the heat-conducting resin layer 11 of the heat pipe protection frame 6 is provided with a protection steel plate 10 in the horizontal direction, and the upper surface of the protection steel plate 10 is abutted to the upper surface of the pavement layer 1 of the highway;
the protective layer casing 13 of the heat pipe protective frame 6 comprises a bell mouth matched with the hole opening of the drill hole and a coaxial sleeve 18 connected with the lower opening of the bell mouth, and the coaxial sleeve 18 is coaxial with the axial axis of the bell mouth. In order to further protect the inorganic medium heat pipe 3, in fig. 3 and 4, a new design scheme is further provided for the combination of the protection steel plate 10 and the heat pipe protection frame 6, specifically, a heat conducting rubber layer 17 is further arranged between the protection steel plate 10 and the upper end face of the heat conducting resin layer 11, a plurality of first grooves 15 are arranged in the vertical direction on the edge of the cross section of the upper opening of the bell mouth, a plurality of first bosses 16 are arranged at the edge joint portion of the protection steel plate 10 and the cross section of the upper opening of the bell mouth corresponding to the plurality of first grooves 15, and compression springs 14 are arranged between the plurality of first grooves 15 and the plurality of first bosses 16. The heat pipe protection frame 6 wrapped on the heat dissipation section 7 of the inorganic medium heat pipe 3 is provided with a protective layer shell 13 with a bell mouth, so that heat of the heat pipe is gathered and conducted to the pavement layer 1. When the upper surface of the pavement layer 1 is impacted by traffic, the compression spring 14 and the heat conducting rubber layer 17 can absorb a large amount of impact energy, so that the protective steel plate 10 can be protected and buffered when being rolled. The inorganic medium heat pipe 3 is effectively protected, damage is avoided, and the service life of the inorganic medium heat pipe 3 is prolonged. Finally, the heat utilization rate of the heat pipe is realized.
Fig. 5 is a schematic view of a pavement of a road, arrows indicate traffic flow directions in a bidirectional lane, an upper opening of the protective layer shell 13 of a bell mouth is projected to be square, and a plurality of radiating fins can be arranged on the protective steel plate 10. Therefore, the heat dissipation surface area can be increased, and technical support is provided for continuously melting accumulated snow on the road surface. The heat of the heat pipe radiating section 7 is transmitted to the road surface more, and is transmitted to the protective steel plate 10 and the radiating fin plate through the heat conducting resin layer 11 to realize heat dissipation and snow melting. The conversion rate of the heat pipe in the utilization of heat energy is improved, and the snow melting effect of the heat pipe is obviously enhanced.
By utilizing the system provided by the application, a construction method aiming at old road reconstruction can be implemented, and the steps are as follows:
(1) calculating the working area of the heat pipes for effectively melting snow according to the effective heat dissipation area of the heat pipes, and determining the distance between the two rows of heat pipes;
(2) drilling holes on the surface of the highway according to the geographical coordinate position of the surface of the highway determined in the step (1), wherein the depth of the holes is 6-8 m to a stratum constant temperature layer 5 below the highway;
(3) vertically placing the inorganic medium heat pipe 3 in the hole, enabling a heat absorption section 9 of the inorganic medium heat pipe 3 to abut against a stratum constant temperature layer 5 below the highway, and enabling a heat dissipation section 7 of the inorganic medium heat pipe 3 to be located on a pavement layer 1 and a roadbed layer 2 of the highway; backfilling concrete to fix the inorganic medium heat pipe 3, sleeving a coaxial sleeve 18 below the bell mouth of the protective layer shell 13 of the heat pipe protective frame 6 on the heat dissipation section 7 of the inorganic medium heat pipe 3, and enabling the upper opening of the bell mouth to be flush with the pavement layer 1 of the road; the heat insulation rubber layer 12 and the heat conduction resin layer 11 are sequentially filled in the protective layer shell 13 from outside to inside, and the heat conduction resin layer 11 is wrapped outside the heat dissipation section 7 of the inorganic medium heat pipe 3;
(4) installing a protective steel plate 10 at the upper opening of the bell mouth of a protective layer shell 13 of the heat pipe protective frame 6 along the direction of the pavement layer 1, and backfilling the pavement layer 2 and the pavement layer 1; making the upper surface of the protective steel plate 10 abut against the upper surface of the pavement layer 1 of the highway;
still be equipped with heat conduction rubber layer 17 between the upper portion terminal surface of protection steel sheet 10 and heat conduction resin layer 11, protective layer shell 13 be equipped with a plurality of first recesses 15 in vertical direction on the edge of the cross section of the last mouthful of horn mouth protection steel sheet 10 with a plurality of first recesses 15 are equipped with a plurality of first bosss 16 corresponding to the edge joint portion of the cross section of the last mouthful of horn mouth, a plurality of first recesses 15 with be provided with compression spring 14 between a plurality of first bosss 16.
The inorganic medium heat pipe 3 contains vacuum sealed inorganic salt, single metal element and other solids, the heat absorption section 9 heats the working medium by absorbing heat and transfers the heat to the heat dissipation section 7, and the heat insulation section 8 is used for preventing the heat exchange between the evaporated gas in the heat pipe and the pipe wall in the rising process to cause heat loss.
The upper opening of the bell mouth of the protective layer shell 13 of the heat pipe protective frame 6 is provided with a protective steel plate 10 along the direction of the pavement layer 1, so that the heat of the heat pipe is gathered and conducted to the pavement layer 1. The heat conducting rubber is arranged between the bell mouth of the protective layer shell 13 and the protective steel plate 10, so that the pressure effect of the road surface traffic flow on the heat pipe is reduced on one hand, and the heat loss can be enhanced by the protective steel plate on the other hand, and the melting of the accumulated snow on the road surface is facilitated. The protective steel plate 10 is fixed in the road and is abutted under the surface of the pavement layer 1. The tidiness of the pavement layer 1 is not affected.
In the description herein, references to the description of "one embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (4)
1. An old road reconstruction inorganic medium heat pipe road snow melting system is characterized by comprising:
the road is provided with a plurality of drill holes vertically downwards from the surface of the road;
the heat absorption section of the inorganic medium heat pipe extends into a stratum constant temperature layer of the highway, and the heat dissipation section of the inorganic medium heat pipe is positioned on a pavement layer and a roadbed layer of the highway;
the heat pipe protection frame is arranged at an orifice of the drill hole, the heat pipe protection frame is sequentially provided with a protection layer shell, a heat insulation rubber layer and a heat conduction resin layer from outside to inside, and a heat dissipation section of the inorganic medium heat pipe is positioned in a package of the heat conduction resin layer; the upper end face of the heat conduction resin layer of the heat pipe protection frame is provided with a protection steel plate in the horizontal direction, and the upper surface of the protection steel plate is abutted to the upper surface of the pavement layer of the road.
2. The road snow melting system adopting the inorganic medium heat pipe for old road reconstruction as claimed in claim 1, wherein the protective layer casing of the heat pipe protective frame comprises a bell mouth matched with the orifice of the drilled hole and a coaxial sleeve connected with the lower opening of the bell mouth, a heat conducting rubber layer is further arranged between the protective steel plate and the upper end face of the heat conducting resin layer, a plurality of first grooves are vertically arranged on the edge of the cross section of the upper opening of the bell mouth, a plurality of first bosses are arranged on the edge joint portion of the protective steel plate and the cross section of the upper opening of the bell mouth corresponding to the plurality of first grooves, and compression springs are arranged between the plurality of first grooves and the plurality of first bosses.
3. The inorganic medium heat pipe road snow melting system for old road reconstruction as claimed in claim 1, wherein a plurality of heat dissipating fins are arranged on the protecting steel plate.
4. The construction method for reforming the road snow melting system by the inorganic medium heat pipe on the old road of the road as claimed in claim 2 comprises the following steps:
(1) calculating the working area of the heat pipes for effectively melting snow according to the effective heat dissipation area of the heat pipes, and determining the distance between the two rows of heat pipes;
(2) drilling holes on the surface of the highway according to the geographical coordinate position of the surface of the highway determined in the step (1), wherein the depth of the holes is 6-8 m from a stratum constant temperature layer below the highway;
(3) vertically placing the inorganic medium heat pipe in the hole, enabling the heat absorption section of the inorganic medium heat pipe to abut against a stratum constant temperature layer below the highway, and enabling the heat dissipation section of the inorganic medium heat pipe to be located on a pavement layer and a roadbed layer of the highway; backfilling concrete to fix the inorganic medium heat pipe, sleeving a coaxial sleeve below the bell mouth of a protective layer shell of the heat pipe protective frame on the heat dissipation section of the inorganic medium heat pipe, and enabling the upper mouth of the bell mouth to be flush with the pavement layer of the road in an abutting mode; the heat-insulating rubber layer and the heat-conducting resin layer are sequentially filled in the protective layer shell from outside to inside, and the heat-conducting resin layer is wrapped outside the heat dissipation section of the inorganic medium heat pipe;
(4) mounting a protective steel plate at the upper opening of the bell mouth of the protective layer shell of the heat pipe protective frame along the pavement layer direction, and backfilling a pavement layer and a pavement layer; the upper surface of the protective steel plate is abutted against the upper surface of the pavement layer of the highway.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820086750 | 2018-01-19 | ||
| CN2018200867509 | 2018-01-19 |
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| Publication Number | Publication Date |
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| CN108611950A CN108611950A (en) | 2018-10-02 |
| CN108611950B true CN108611950B (en) | 2021-12-21 |
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| CN201810448096.6A Active CN108611950B (en) | 2018-01-19 | 2018-05-11 | Road snow melting system for old road reconstruction of inorganic medium heat pipe and construction method |
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| CN109916455B (en) * | 2019-04-10 | 2024-04-23 | 山东省交通规划设计院集团有限公司 | Data acquisition system for snow melting of inorganic geothermal heat pipe of expressway |
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| CN106677004A (en) * | 2016-12-15 | 2017-05-17 | 安邦电气股份有限公司 | Electric trace heating band for melting snow and ice on road |
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| JP2008075809A (en) * | 2006-09-22 | 2008-04-03 | Sanei Kogyo Kk | Road heating pipe connection structure, and anticorrosive sleeve to be used for the same and connection method using the same |
| CN202073006U (en) * | 2011-04-22 | 2011-12-14 | 量子科技（中国）有限公司 | Heat pipe type geothermal snow-melting structure |
| CN202304516U (en) * | 2011-10-13 | 2012-07-04 | 北京德能恒信科技有限公司 | Ground source heat exchanger |
| CN205420961U (en) * | 2016-03-11 | 2016-08-03 | 陈猛 | Road with pressure generation snow melt ice function |
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