CN217078281U - A pavement deicing and cooling system based on underground pipe gallery structure - Google Patents

Abstract

The utility model belongs to the technical field of civil construction engineering, specifically disclose a road surface deicing cooling system based on underground pipe gallery structure, including burying underground in the road in be the horizontal heat exchange tube that S-shaped end to end meets, horizontal heat exchange tube export is linked together through outlet pipe and underground pipe gallery heat exchange tube water inlet, and underground pipe gallery heat exchange tube delivery port sends water into the water tank through circulating water pump, and the water tank passes through the water pump and feeds water into horizontal heat exchange tube formation circulation again, underground pipe gallery heat exchange tube ties respectively on underground pipe gallery' S lateral wall, bottom plate and roof, and ties respectively through copper joint end to end between the heat exchange tube on underground pipe gallery lateral wall, bottom plate and roof, the water tank is located on the road surface, the utility model discloses a form of pouring heat exchange tube and pipe gallery steel construction ligature in advance with the help of building when the pipe gallery, avoided adopting the drilling expense height that traditional geothermol pipe method exists, The construction backfill quality is difficult to ensure, the floor area of the drilled hole is large, and the like.

Description

A pavement deicing and cooling system based on underground pipe gallery structure

technical field

The utility model belongs to the technical field of civil construction engineering, in particular to a road surface deicing and cooling system based on an underground pipe gallery structure.

Background technique

Under the high temperature conditions in summer, the pavement absorbs a lot of heat and accumulates in itself, resulting in a "heat island effect", which also causes serious rutting on the asphalt pavement. The solution to the rutting problem is generally to passively accept high temperature through technical measures such as improving the high temperature resistance of the pavement material itself and improving the gradation of the mixture. Or formulate the rutting maintenance technical scheme of asphalt pavement from the two aspects of pavement material and pavement structure design, which is also a passive measure, and the repair after the event faces the disadvantages of difficult to eliminate hidden dangers on the road surface and excessive economic cost. Snow and ice are prone to appear in winter, which seriously affects traffic operation and road use. At present, there are four main types of snow melting and deicing methods at home and abroad: manual removal, mechanical removal, chemical melting, and thermal melting. The manual removal method and the mechanical removal method mainly use manpower and mechanical tools to remove the ice and snow on the road. In addition to the shortcomings of low efficiency, damage to the road surface, and traffic occupation, it also has a lag and cannot be deiced in time. The chemical melting method is to use snow melting agent to eliminate snow and ice, which has high direct cost and great indirect economic loss due to environmental pollution and road corrosion. In recent years, thermal melting and deicing methods have developed rapidly due to their green and environmentally friendly characteristics, and are mainly divided into electric heating methods, fluid heating methods, and geothermal tube methods. The electric heating method generates heat by inputting current into the roadbed insulated cables or conductive materials added to the road surface to achieve the purpose of melting snow and ice; the fluid heating method usually uses boilers, hot springs, solar energy, etc. The hot fluid circulates to heat and de-ic the road surface. In the geothermal pipe method, the heat exchange pipe is buried in the soil through drilling or excavation as a buried pipe heat exchanger, and the heat exchange pipe is laid horizontally on the road surface as a deicing system. The soil heat is extracted and supplied to the road surface to achieve the effect of melting snow and deicing. The geothermal pipe method is widely used due to its environmental protection and low maintenance costs in the later period. However, due to the high drilling cost in the early stage, the difficulty of guaranteeing the quality of construction backfill, and the large area of the drilling, the geothermal pipe method is widely used in road snow melting and deicing. Promotion is restricted.

SUMMARY OF THE INVENTION

The purpose of this utility model is to provide a pavement deicing and cooling system based on an underground pipe gallery structure, which avoids the use of traditional geothermal energy by binding the heat exchange pipes and the steel structure of the pipe gallery in advance and then pouring them during the construction of the pipe gallery. The pipe method has problems such as high drilling cost, difficult to guarantee the quality of construction backfill, and large drilling area.

In order to achieve the above object, the technical scheme adopted by the present utility model is:

A pavement deicing and cooling system based on an underground pipe gallery structure comprises horizontal heat exchange tubes buried in the road surface and connected end to end in an S shape, the outlet of the horizontal heat exchange tube is connected with the water inlet of the heat exchange tube of the underground pipe gallery through a water outlet pipe , the water outlet of the heat exchange tube of the underground pipe gallery sends water into the water tank through the circulating water pump, and the water tank sends the water back to the horizontal heat exchange pipe through the water pump to form a circulation. , bottom plate and top plate, and are bound to the side walls of the underground pipe gallery, the heat exchange tubes on the bottom plate and the top plate are connected end to end through copper joints, the water tank is located on the road surface, and the deicing and cooling system , in the high temperature weather in summer, use the road surface to absorb solar energy and store it in the soil around the pipe gallery and at the same time cool the road surface; in winter, the original ground temperature of the soil around the pipe gallery is transported through the heat exchange pipe To the road to achieve the purpose of melting snow and ice.

Further, the horizontal heat exchange tube is located in the water stable layer of the road surface, and a steel mesh sheet is arranged in the road surface water stable layer, and the horizontal heat exchange tube is bound on the steel mesh sheet, so that the horizontal heat exchange tube can be fixed in this way. Avoid its translation.

Further, the underground pipe gallery is a cubic structure, the heat exchange pipes are bound on the steel structure frame of the underground pipe gallery, and the heat exchange pipe is also covered with a thermal insulation jacket. The purpose of this setting is to bind the heat exchange pipes to the underground pipe gallery. On the steel structure, after laying the insulation jacket, the concrete is poured, and the heat exchange tube can be poured in the underground pipe gallery, which can ensure the strength of the underground pipe gallery without occupying the underground space. The position is deep enough, and the heat transfer capacity is stronger.

Further, the heat exchange tubes bound to the side walls, bottom plates and top plates of the underground pipe gallery are laid in an S-shape, which is beneficial to heat exchange.

Further, the distance between the adjacent pipes of the underground pipe gallery heat exchange pipe is 500mm.

A construction method of a pavement deicing and cooling system based on the design of the underground pipe gallery structure is as follows: 1. Embedding the heat exchange pipes of the pipe gallery structure: after the steel cage of the pipe gallery structure is bound, the heat exchange pipes are bound to the four walls of the pipe gallery before pouring concrete The steel cage is placed in the cage and spliced with copper joints, and finally concrete is poured;

2. Insulation and protection of heat exchange tubes: protect the heat transfer tubes in the four-wall concrete structure of the pipe gallery with an insulation jacket, and the thickness of the insulation jacket is 3-8mm;

3. Pavement heat exchange tube burial: firstly lay steel mesh on the water stable layer of the road to fix the heat exchange tube, then bind the heat exchange tube to the steel mesh according to the S shape, and finally pour the asphalt layer;

4. Assembly of the multi-functional collector water pump system: the circulating liquid flows from the collector water tank into the road panel heat exchange tube under the drive of the water pump, and flows to the water inlet of the tube gallery heat exchanger after being circulated, and then flows from the tube gallery heat exchanger to the water outlet. After flowing out, it flows to the collector water tank, and then the next cycle;

5. Connect the pipe gallery buried pipe heat exchanger, the road buried pipe heat exchanger, and the multi-functional collector water pump system to form a pavement deicing and cooling system based on the pipe gallery structure design.

The working principle of the utility model is as follows: when high temperature weather occurs in summer, the heat exchange tube buried in the road is used to absorb solar energy, and under the driving action of the water pump, it flows to the underground pipe gallery structure and stores the energy in the surrounding soil. It achieves the purpose of cooling the road surface and stores energy for winter deicing. When there is ice and snow weather in winter, the heat exchange pipes embedded in the concrete structure of the four walls of the pipe gallery are used to extract the geothermal energy in the soil around the pipe gallery and the heat collected in summer. The heat is absorbed by the road surface to achieve the purpose of melting snow and deicing.

The utility model has the advantages that the cost of the present invention is low, and the construction of the pipe gallery will excavate the foundation pit, so the cost of drilling and excavation in the early stage is saved; since the heat exchange tube is buried in the concrete, the concrete not only has good thermal conductivity , and play a protective role on the heat exchange tubes; the road buried pipe heat exchanger and the pipe gallery buried pipe heat exchanger act as cold and heat sources for each other, achieving the dual effect of road cooling in summer and road deicing in winter.

Description of drawings

FIG. 1 is a schematic structural diagram of the present utility model.

Fig. 2 Schematic diagram of local buried pipe in the pipe gallery.

Figure 3 Schematic diagram of road buried pipe.

Fig. 4 Schematic diagram of the distance and depth of buried pipes in the pavement.

Figure 5 Schematic diagram of copper joints.

FIG. 6 is a schematic diagram of the heat exchange tube part of the overall buried pipe of the pipe gallery.

Detailed ways

As shown in the figure, a pavement deicing and cooling system based on an underground pipe gallery structure includes horizontal heat exchange tubes 1 buried in the pavement and connected end to end in an S shape, the horizontal heat exchange tubes 1 are located in the water stable layer of the pavement 3 Inside, the water stabilization layer of the road surface is provided with a steel mesh sheet 6, and the horizontal heat exchange tube 1 is bound on the steel mesh sheet 6, so that the horizontal heat exchange tube can be fixed to avoid its translation, and the horizontal heat exchange tube 1 exits The water outlet pipe is connected with the water inlet of the heat exchange pipe 4 of the underground pipe gallery. The water outlet of the heat exchange pipe 4 of the underground pipe gallery sends water into the water tank 4 through the circulating pump, and the water tank sends the water to the horizontal heat exchange pipe through the water pump to form a circulation. The underground pipe gallery heat exchange tubes 7 are respectively bound on the side wall, bottom plate and top plate of the underground pipe gallery 2, and are respectively bound between the heat exchange tubes on the side wall, bottom plate and top plate of the underground pipe gallery through copper joints 5 end to end. Connected, the water tank 4 is located on the road surface, through this form of deicing and cooling system, in the high temperature weather in summer, the road surface is used to absorb solar energy and store it in the soil around the pipe gallery, and at the same time, it has the effect of cooling the road surface; In winter, when the weather is icy and snowy, the original ground temperature of the soil around the pipe gallery is transported to the road surface through the heat exchange pipe to achieve the purpose of melting snow and ice; the underground pipe gallery 4 is a cube structure, and the heat exchange pipe is bound to the steel of the underground pipe gallery On the structural frame, the heat exchange tube is also laid with an insulation jacket. The purpose of this setting is to bind the heat exchange tube to the steel structure of the underground pipe gallery. After laying the insulation jacket, concrete is poured. In the underground pipe gallery, the strength of the underground pipe gallery 4 can be guaranteed without occupying the underground space. Since the underground pipe gallery 4 is buried deep enough, the heat exchange capacity is stronger. The heat exchange tubes bound to the side walls, bottom plate and top plate of the underground pipe gallery are laid in an S shape, which is conducive to heat exchange. The spacing between the adjacent pipes of the underground pipe gallery heat exchange pipes is 500mm.

In the specific implementation, the concrete of the pipe gallery project is poured in sections and sections. The bottom plate is poured first, then the side walls are poured, and finally the top plate is poured. When tying the heat exchange tubes, firstly bind the bottom plate. The steel skeleton of the bottom plate is divided into upper and lower layers. In order to facilitate the binding construction of the heat exchange tubes, the heat exchange tubes should be bound immediately after the lower steel skeleton is formed. All forming will cause great construction inconvenience to the binding of heat exchange tubes. When pouring the bottom plate, it should be noted that the heat exchange tubes at the head and tail of the bottom plate need to be reserved and tied to the steel cages on the two side walls respectively. In the same way, the heat exchange tubes on the two side walls are also bound according to the above method. After completion, copper joints (see Figure 5) are used to connect the previously reserved part to the side wall heat exchange tubes. Then, when pouring the concrete on the two side walls, also pay attention to the reserved part to be bound on the steel reinforcement of the roof, and the binding of the heat exchange tube of the roof and the concrete pouring are the same as above, as shown in Figure 2.

For the burying of the heat exchange pipes on the road surface, firstly lay steel mesh sheets on the water stable layer to fix the heat exchange pipes, then bind the heat exchange pipes to the steel mesh sheets in an S shape, as shown in Figure 3, and finally pour the asphalt layer. Note: It is advisable to control the distance between the buried pipes at about 20cm, and control the buried depth at about 15cm (the distance between the heat exchange pipe and the road surface is 15cm). The multi-functional collector water pump system is assembled (that is, including the connection between the water tank, the water pump, the circulating water pump and the heat exchange tube). The water inlet of the tube gallery heat exchanger flows out from the water outlet of the tube gallery heat exchanger and flows to the collector water tank, and then the next cycle is carried out.

Claims (5)

1. The utility model provides a road surface deicing cooling system based on underground pipe gallery structure which characterized in that: including burying the horizontal heat exchange tube that is S-shaped end to end in the road surface underground, horizontal heat exchange tube export is linked together through outlet pipe and underground pipe gallery heat exchange tube water inlet, and underground pipe gallery heat exchange tube delivery port sends water into the water tank through circulating water pump, and the water tank passes through the water pump and feeds water into horizontal heat exchange tube again and forms the circulation, the underground pipe gallery heat exchange tube is tied up respectively on underground pipe gallery' S lateral wall, bottom plate and roof, and ties respectively between the heat exchange tube on underground pipe gallery lateral wall, bottom plate and roof through copper joint end to end, the water tank is located on the road surface.

2. A pavement deicing and cooling system based on an underground pipe gallery structure as set forth in claim 1, characterized in that: the horizontal heat exchange tubes are located in the pavement water stabilization layer, steel bar meshes are arranged in the pavement water stabilization layer, and the horizontal heat exchange tubes are bound on the steel bar meshes.

3. A road surface deicing and cooling system based on a underground pipe gallery structure as claimed in claim 2, characterized in that: the underground pipe gallery is of a cubic structure, the heat exchange tubes are bound on a steel structure frame of the underground pipe gallery, and heat insulation sleeves are laid outside the heat exchange tubes.

4. A pavement deicing and cooling system based on an underground pipe gallery structure as set forth in claim 3, characterized in that: the heat exchange tubes tied to the side wall, the bottom plate and the top plate of the underground pipe gallery are laid in an S shape.

5. A pavement deicing and cooling system based on an underground pipe gallery structure as set forth in claim 4, characterized in that: the interval between its adjacent pipeline of underground pipe gallery heat exchange tube is 500 mm.

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