CN219431891U - Air-out heat preservation device suitable for loess tunnel portal in seasonal cold region - Google Patents
Air-out heat preservation device suitable for loess tunnel portal in seasonal cold region Download PDFInfo
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- CN219431891U CN219431891U CN202320788082.5U CN202320788082U CN219431891U CN 219431891 U CN219431891 U CN 219431891U CN 202320788082 U CN202320788082 U CN 202320788082U CN 219431891 U CN219431891 U CN 219431891U
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- tunnel portal
- arch frame
- hot air
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Abstract
The utility model belongs to the technical field of seasonal loess tunnel heat preservation in cold regions, and discloses an air-out heat preservation device suitable for a loess tunnel opening in the seasonal loess region. The utility model has good frost damage prevention effect, is convenient for maintenance and has low maintenance cost.
Description
Technical Field
The utility model belongs to the technical field of seasonal loess tunnel heat preservation in cold regions, and particularly relates to an air-out heat preservation device suitable for a tunnel portal of a seasonal loess tunnel.
Background
The temperature difference between the inside and the outside of a loess tunnel hole in a seasonal cold region is relatively large, if the tunnel hole is in a cold environment for a long time, the lining structure at the tunnel hole can be greatly damaged, the lining can be peeled off, the driving safety is affected, the whole tunnel can be in a paralysis state, and resource waste is caused. In the construction process of the loess tunnel in the seasonal cold region, in order to prevent the occurrence of freezing injury, various technical measures are applied to the heat preservation and the freezing prevention of the tunnel, and the effects are quite different. However, the tunnel portal section in the cold region is seriously damaged by the bad weather of the external low temperature.
At present, an Electric Tracing System (EHTs) is adopted in a loess tunnel in a seasonal cold region to prevent freeze injury, the system converts electric energy into heat energy, the heat energy passes through a heating cable and then is transferred to the tunnel, and heat dissipation is prevented through protection of an outer layer heat insulation material, so that heat supply and heat preservation are carried out on the tunnel. Although the anti-freezing effect is good, the early investment is less, the aging of the heat belt brings difficulty to the later examination of the tunnel, and the later operation cost is too high.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides the air-out heat preservation device suitable for the loess tunnel portal in the seasonal cold region, which has good anti-freezing effect, is convenient to maintain and has low maintenance cost.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model provides a be applicable to seasonal cold district loess tunnel entrance to a cave air-out heat preservation device, is including hugging closely the arch frame that sets up at tunnel entrance to a cave terminal surface, the outer wall cladding of arch frame is provided with the heat preservation room, keep away from on the inner wall of arch frame the position of tunnel entrance to a cave is followed the arch direction equipartition and is installed a plurality of blast gates orientation the hot-blast device that blows of tunnel entrance to a cave, the hot-blast device that blows is connected with power supply unit.
Further, the power supply device comprises a solar panel arranged at the top of the heat preservation chamber, and the solar panel is connected with the hot air blowing device.
Further, the power supply device further comprises an electric storage device arranged at the top of the heat preservation chamber, the electric storage device is connected with the solar cell panel, and the electric storage device is connected with the hot air blowing device.
Further, a heat insulation layer is laid on the top of the heat preservation chamber, and the solar cell panel and the electric storage device are located on the heat insulation layer.
Further, the device also comprises a control device and a temperature sensor which is arranged on the inner wall of the arch frame and is close to the tunnel portal, wherein the control device and the temperature sensor are connected with the power supply device, and the control device is respectively connected with the hot air blowing device and the temperature sensor.
Further, a temperature alarm is further arranged on the inner wall of the arch frame and close to the tunnel portal, the temperature alarm is connected with the power supply device, and the temperature alarm is connected with the control device.
Further, the control device is used for comparing the temperature acquired by the temperature sensor with a plurality of preset different temperature ranges, and controlling the working power of the hot air blowing device according to the comparison result.
Further, a lighting system is further arranged on the inner wall of the arch frame, and the lighting system is connected with the power supply device.
Further, a monitoring system is further arranged on the inner wall of the arch frame, and the monitoring system is connected with the power supply device.
Compared with the prior art, the utility model has at least the following beneficial effects:
the utility model provides an air-out heat preservation device suitable for loess tunnel openings in seasonal cold areas, which is characterized in that an arch frame is arranged on the end face of the tunnel opening in an outward connecting mode, a plurality of hot air blowing devices with blowing openings facing the tunnel opening are uniformly arranged on the inner wall of the arch frame in the arch direction at positions far away from the tunnel opening, the hot air blowing devices are connected with a power supply device, after the hot air blowing devices are connected with the power supply device, hot air generated by the hot air blowing devices continuously blows to the tunnel opening, and heat preservation chambers coated on the outer wall of the arch frame are matched to prevent heat generated by the hot air blowing devices from being lost. Compared with the traditional way of preventing the freezing injury of the electric tracing system, the method does not need to embed the tracing band, so that the problems that the aging of the tracing band causes difficulty in the later examination of the tunnel and the later operation cost is too high are avoided. According to the utility model, the environmental temperature of the tunnel portal is changed by adopting measures of heating, heat preservation and heat insulation, so that the effect of heat preservation and heating of the tunnel portal is achieved, the occurrence of tunnel freezing injury caused by the change of local air temperature after the tunnel is built is avoided, the performance degradation of lining concrete of the tunnel portal is further avoided, and the occurrence of diseases in the later operation of the tunnel is avoided.
In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of an air-out heat preservation device suitable for loess tunnel openings in seasonal cold areas;
fig. 2 is an elevation view of an air-out heat preservation device suitable for loess tunnel openings in seasonal cold areas.
In the figure: 1-a control device; 2-an arch; 3-blowing hot air device; 4-a solar panel; 5-an electric storage device; 6-a heat insulation layer; 7-a temperature sensor; 8-a temperature alarm; 9-a monitoring system; 10-an illumination system; 11-cables; 12-switching; 13-a key; 14-a display screen; 15-a heat preservation chamber; 16-tunnel portal.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As a specific implementation manner of the present utility model, as shown in fig. 1 and 2, the embodiment provides an air-out heat preservation device suitable for loess tunnel openings in seasonal cold areas, which comprises an arch frame 2 closely arranged on the end surface of a tunnel opening 16, wherein a heat preservation chamber 15 is arranged on the outer wall of the arch frame 2 in a coating manner, a plurality of air-blowing devices 3 with air-blowing openings facing the tunnel opening 16 are uniformly arranged on the inner wall of the arch frame 2 along the arch direction at positions far away from the tunnel opening 16, and the air-blowing devices 3 are connected with a power supply device.
Specifically, the arch frame 2 is shaped along with the tunnel, one end of the arch frame 2 is fixedly installed on the end face of the tunnel opening 16, the heat insulation chamber 15 prevents heat dissipation, the installation of the hot air blowing device 3 needs to be guaranteed not to influence the safe passing of the vehicle, and in general, the arch frame 2 at the position of the hot air blowing device 3 is properly amplified, so that the safe passing of the vehicle is guaranteed not to be influenced by the hot air blowing device 3. After the hot air blowing device 3 is communicated with the power supply device, continuous hot air is generated through the hot air blowing device 3, the hot air blows to the tunnel portal 16, the tunnel portal 16 is heated, and the tunnel portal 16 is prevented from being frozen.
For example, the heat preservation chamber 15 outside the arch frame 2 is preserved by aerated concrete blocks, so that the arch frame is prevented from being damaged due to overlong exposure time in a low-temperature environment. The arch frame 2 adopts a steel arch frame, the hot air blowing devices 3 are arranged on the upper part and the left side and the right side of the inner wall of the arch frame 2, and the number of the hot air blowing devices 3 is adjusted according to the section size of a tunnel. The hot air blowing device 3 is arranged on the arch frame 2 for a circle, can play a role in blowing and heating without dead angles, and can effectively block or slow down cold air convection.
On the basis of the above embodiment, a more preferable example is provided in which the power supply device includes a solar panel 4 arranged on top of a heat preservation chamber 15, the solar panel 4 is connected to the hot air blowing device 3, specifically, the solar panel 4 is connected to the hot air blowing device 3 through a cable 11.
That is, by using the top space of the heat preservation chamber 15, a plurality of solar panels 4 can be installed and distributed at the top of the heat preservation chamber 15, and after the solar panels 4 are used for converting solar energy into electric energy, the electric energy is directly supplied to the hot air blowing device 3, so that electricity can be saved, the electricity cost of a highway can be reduced, and the concept of green, environment-friendly and energy-saving can be inherited.
The solar panel 4 is, for example, a monocrystalline silicon solar cell or a polycrystalline silicon solar cell.
In addition to the above embodiment, a more preferable example is provided in which the power supply device further includes an electric storage device 5 disposed on top of the heat preservation chamber 15, the electric storage device 5 is connected to the solar cell panel 4, the electric storage device 5 is connected to the hot air blowing device 3, specifically, the electric storage device 5 is connected to the solar cell panel 4 through a cable 11, and the electric storage device 5 is connected to the hot air blowing device 3 through the cable 11
In this embodiment, the electric power storage device 5 is additionally arranged at the top of the heat preservation chamber 15, and the electric energy converted by the solar panel 4 can be stored by using the electric power storage device 5, so that the electric power storage device 5 can be started to supply power for the electric power utilization device when the sunlight is insufficient, namely, the solar panel 4 generates electricity insufficiently, and the normal operation of the heat preservation device is ensured.
In the above embodiment, it is more preferable that the heat insulating layer 6 is laid on top of the heat insulating chamber 15, and the solar cell panel 4 and the power storage device 5 are located on the heat insulating layer 6. The heat emitted from the heat preservation chamber 15 is isolated by the heat insulating layer 6, and the heat is prevented from affecting the normal operation of the solar cell panel 4 and the power storage device 5.
Preferably, insulation cotton is laid between the solar panel 4 and the insulation layer 6 and between the insulation layer 6 and the top of the insulation chamber 15 for blocking or slowing down the heat output of the outside air.
On the basis of the embodiment, a more preferable example is provided, in the example, an air-out heat preservation device suitable for a loess tunnel portal in a seasonal cold area further comprises a control device 1 and a temperature sensor 7 arranged on the inner wall of the arch frame 2 and close to the tunnel portal 16, wherein the temperature sensor 7 is used for collecting the temperature at the tunnel portal 16; the control device 1 and the temperature sensor 7 are both connected with a power supply device, and power is supplied to the control device through the power supply device; the control device 1 is connected to the hot air blowing device 3 and the temperature sensor 7, respectively.
Specifically, the control device 1 compares the temperature acquired by the temperature sensor 7 with a plurality of preset different temperature ranges, and controls the operating power of the hot air blowing device 3 according to the comparison result. That is, a plurality of different temperature ranges are preset in the control device 1, each temperature range corresponds to the working power of the hot air blowing device 3, and the lower the temperature range is, the larger the working power of the corresponding hot air blowing device 3 is, so that the working power of the hot air blowing device 3 can be adjusted adaptively, which is beneficial to saving electric energy and prolonging the working life of the hot air blowing device 3. Preferably, the temperature sensors are arranged at the upper part of the arch frame, which is close to the tunnel portal, and at the left side and the right side of the arch frame.
For example, the control device 1 is arranged outside the arch frame 2, and takes heat preservation and anti-freezing measures for the control device; the control device 1 is provided with a switch 12, a key 13 and a display screen 14, the work start and stop of the air-out heat preservation device is controlled through the switch 12, the key comprises a heating key, a temperature adjusting key and a wind power adjusting key, and the temperature is displayed through the display screen 14.
In the above embodiment, it is more preferable that a temperature alarm 8 is further provided on the inner wall of the arch frame 2 near the tunnel portal 16, the temperature alarm 8 is connected with a power supply device, the power supply device supplies power to the temperature alarm 8, and the temperature alarm 8 is connected with the control device 1.
Specifically, when the temperature collected by the temperature sensor 7 is lower than the preset alarm temperature, the working state of the hot air blowing device 3 is abnormal, and the alarm is given through the temperature alarm 8, so that people can find out and maintain in time conveniently.
On the basis of the above embodiment, a more preferable example is provided, in which the lighting system 10 is further disposed on the inner wall of the arch frame 2, the lighting system 10 is connected with the power supply device, and sufficient lighting is provided for the channel where the arch frame 2 is located through the lighting system 10, so as to ensure the running safety of the vehicle.
On the basis of the above embodiment, a more preferable example is provided, in this example, a monitoring system 9 is further disposed on the inner wall of the arch frame 2, the monitoring system 9 is connected with a power supply device, and the monitoring system 9 is adopted to monitor the traffic condition in the channel where the arch frame 2 is located in real time for 24 hours all the day.
Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a be applicable to seasonal cold district loess tunnel entrance to a cave air-out heat preservation device, its characterized in that, including hugging closely arch frame (2) that set up at tunnel entrance to a cave (16) terminal surface, the outer wall cladding of arch frame (2) is provided with heat preservation room (15), keep away from on the inner wall of arch frame (2) the position of tunnel entrance to a cave (16) is followed the arch direction equipartition and is installed a plurality of blast gates orientation blast hot air device (3) of tunnel entrance to a cave (16), blast hot air device (3) are connected with power supply unit.
2. The loess tunnel portal air-out heat preservation device suitable for seasonal cold regions according to claim 1, wherein the power supply device comprises a solar panel (4) arranged at the top of the heat preservation chamber (15), and the solar panel (4) is connected with the hot air blowing device (3).
3. The air-out heat preservation device suitable for the loess tunnel portal in the seasonal cold region according to claim 2, wherein the power supply device further comprises an electric storage device (5) arranged at the top of the heat preservation chamber (15), the electric storage device (5) is connected with the solar panel (4), and the electric storage device (5) is connected with the hot air blowing device (3).
4. The loess tunnel portal air-out heat preservation device suitable for seasonal cold regions according to claim 3, wherein a heat insulation layer (6) is laid on the top of the heat preservation chamber (15), and the solar cell panel (4) and the electric power storage device (5) are located on the heat insulation layer (6).
5. The loess tunnel portal air-out heat preservation device suitable for seasonal cold regions according to claim 1, further comprising a control device (1) and a temperature sensor (7) arranged on the inner wall of the arch frame (2) and close to the tunnel portal (16), wherein the control device (1) and the temperature sensor (7) are both connected with the power supply device, and the control device (1) is respectively connected with the hot air blowing device (3) and the temperature sensor (7).
6. The air-out heat preservation device for loess tunnel portal in seasonal cold area according to claim 5, wherein a temperature alarm (8) is further arranged on the inner wall of the arch frame (2) at a position close to the tunnel portal (16), the temperature alarm (8) is connected with the power supply device, and the temperature alarm (8) is connected with the control device (1).
7. The air-out heat preservation device for the loess tunnel portal in the seasonal cold region according to claim 5, wherein the control device (1) is used for comparing the temperature collected by the temperature sensor (7) with a plurality of preset different temperature ranges, and controlling the working power of the hot air blowing device (3) according to the comparison result.
8. The device for heat preservation of loess tunnel portal air outlet in seasonal cold area according to claim 1, wherein a lighting system (10) is further arranged on the inner wall of the arch frame (2), and the lighting system (10) is connected with the power supply device.
9. The device for heat preservation of loess tunnel portal air outlet in seasonal cold area according to claim 1, wherein a monitoring system (9) is further arranged on the inner wall of the arch frame (2), and the monitoring system (9) is connected with the power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320788082.5U CN219431891U (en) | 2023-04-10 | 2023-04-10 | Air-out heat preservation device suitable for loess tunnel portal in seasonal cold region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320788082.5U CN219431891U (en) | 2023-04-10 | 2023-04-10 | Air-out heat preservation device suitable for loess tunnel portal in seasonal cold region |
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| Publication Number | Publication Date |
|---|---|
| CN219431891U true CN219431891U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320788082.5U Active CN219431891U (en) | 2023-04-10 | 2023-04-10 | Air-out heat preservation device suitable for loess tunnel portal in seasonal cold region |
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| Country | Link |
|---|---|
| CN (1) | CN219431891U (en) |
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2023
- 2023-04-10 CN CN202320788082.5U patent/CN219431891U/en active Active
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