Tunnel portal heat preservation and auxiliary heating device

Abstract

The utility model discloses a tunnel portal heat preservation and auxiliary heating device which comprises a portal heat preservation shed, the portal heat preservation shed comprises a left side wall, a right side wall, a portal end wall, a ceiling, a front shed door wall and a rear shed door wall, the front shed door wall and the rear shed door wall are arranged on the front side and the rear side of the side away from the portal, and the ceiling is made of transparent heat preservation materials. The left side wall and the right side wall are made of heat-preservation color steel, the front shed door wall and the rear shed door wall are made of fireproof heat-preservation materials and are both provided with electric roller shutter doors which are opened and closed up and down through wireless remote control, the hole end wall is made of heat-preservation color steel, the bottom of the wall is tightly attached to a hole side slope, and a construction hole pipe shed and a tunnel entering and exiting space are reserved. And the bottom and the periphery of the hole thermal insulation shed are tightly blocked by structural adhesive. The transparent ceiling fully utilizes sunlight energy in the daytime to heat air in the opening heat preservation shed, the shed warming effect is achieved, heat loss can be reduced through the front shed door wall and the rear shed door wall, and the effect of controlling the temperature of a construction area is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel opening heat preservation and auxiliary heating device. Background Art

[0002] With the rapid development of railways, more and more tunnels are located in cold winter areas. During winter construction, the lowest temperature in cold winter areas is 20 to 30 degrees below zero. At this time, the side slope is relatively stable due to the frozen water, and the tunnel construction is safer. However, due to the low temperature, the concrete cannot undergo hydration reaction, and the strength cannot be improved. It does not meet the requirements of the specifications, which seriously affects the quality of tunnel concrete construction, resulting in restrictions on tunnel progress, quality and safety. At the same time, the construction environment for personnel is poor and the construction efficiency is low. Utility Model Content

[0003] The utility model provides a tunnel opening insulation and auxiliary heating device to solve the problems that the temperature in cold areas in winter is low and the concrete construction temperature requirement cannot be met, resulting in quality defects, a poor construction environment for personnel, and low construction efficiency.

[0004] The utility model is realized by adopting the following technical scheme: a tunnel opening heat preservation and auxiliary heating device comprises a tunnel opening heat preservation shed, the tunnel opening heat preservation shed comprises a left wall, a right wall, a tunnel opening end wall, a ceiling, and a front shed door wall and a rear shed door wall arranged in front and behind a side away from the tunnel opening, the ceiling is made of transparent heat preservation material, a waterproof heat preservation quilt is arranged on the top of the ceiling, which is covered or rolled up by a rotating rod connected to a motor at the top, the left and right side walls are heat preservation color steel, the front and rear shed door walls are fireproof heat preservation material, the front and rear shed door walls are both provided with electric rolling shutter doors which are opened and closed up and down by wireless remote control, the tunnel opening end wall is made of heat preservation color steel material, the bottom of the wall is close to the tunnel opening slope, leaving a tunnel opening pipe shed and tunnel in and out space for construction, and the bottom and surrounding of the tunnel opening heat preservation shed are tightly sealed with structural adhesive.

[0005] Furthermore, it includes a heating system, which includes a boiler room arranged outside the insulation shed at the cave entrance, the boiler room connects the water supply pipe and return pipe arranged in the insulation shed at the cave entrance and the tunnel, and the water supply pipe and return pipe are connected with heat sinks.

[0006] Furthermore, it includes an air duct, which extends from the tunnel to the outside of the insulation shed at the cave entrance and is connected to the tunnel fan at the end. The air duct includes a heating pipe section, which is connected to the tunnel fan. A spiral tube is axially arranged in the heating pipe section, and the two ends of the spiral tube are respectively connected to the water supply pipe and the return pipe.

[0007] Furthermore, a carriageway is arranged in the middle of the ground inside the cave entrance insulation shed, a sidewalk is arranged on the side of the carriageway, and a dividing guardrail is arranged between the carriageway and the sidewalk.

[0008] Furthermore, the front shed door wall and the rear shed door wall are provided with small doors on the sidewalk side.

[0009] The utility model of tunnel opening insulation and auxiliary heating device realizes the closed insulation of the opening through insulation color steel. On the one hand, through transparent insulation tiles, it fully utilizes the solar energy during the day to heat the air in the insulation shed of the opening to achieve the warm shed effect. On the other hand, through the front and rear shed door walls, it reduces heat loss to achieve the effect of controlling the temperature of the construction area, which can effectively prevent the occurrence of concrete quality problems caused by low ambient temperature. At the same time, the boiler room is placed outside the insulation shed of the opening, and auxiliary heating is carried out by conveying heated water and air, which effectively prevents the construction personnel from being poisoned and eliminates the safety hazards of fire. The device makes full use of the existing tunnel fan, can quickly convey hot air, and reduces equipment investment. Therefore, the device is cost-effective, greatly enriches the tunnel construction technology, and has extremely wide promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a side view of the utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the end wall of the tunnel entrance of the utility model;

[0013] Figure 4 It is a schematic diagram of the connection between the tunnel fan and the heating pipe section of the utility model.

[0014] In the figure: 1. Insulation shed at the entrance; 11. Left wall; 12. Right wall; 13. End wall of the entrance; 14. Ceiling; 15. Front door wall of the shed; 16. Rear door wall of the shed; 17. Sidewalk; 18. Driveway; 19. Dividing guardrail; 2. Heating system; 21. Boiler room; 22. Water pipe; 23. Return pipe; 24. Three-way valve; 3. Tunnel; 31. Tunnel entrance; 32. Tunnel side slope; 4. Air duct; 41. Tunnel fan; 42. Heating pipe section; 43. Spiral pipe; 44. Air inlet; 5. Motor; 6. Waterproof and thermal insulation quilt. DETAILED DESCRIPTION

[0015] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a tunnel entrance insulation and auxiliary heating device of the utility model in conjunction with the accompanying drawings.

[0016] like Figure 1 and Figure 2As shown, a tunnel entrance heat preservation and auxiliary heating device includes a tunnel entrance heat preservation shed 1 and a heating system 2. The tunnel entrance heat preservation shed 1 includes a left wall 11, a right wall 12, a tunnel entrance end wall 13, a ceiling 14, and a front shed door wall 15 and a rear shed door wall 16 arranged in front and behind the side away from the tunnel entrance. The ceiling 14 is made of transparent heat preservation material, and a waterproof heat preservation quilt 6 is arranged on the top, which is covered or rolled up by a motor 5 connected to a rotating rod at the top. During the day, the waterproof heat preservation quilt 6 on the top of the tunnel entrance heat preservation shed 1 is in a contracted state, and sunlight is used to form a "warm shed" effect. At night, the waterproof heat preservation quilt 6 on the top is lowered by the motor 5 to cover the top and reduce heat dissipation.

[0017] The left and right side walls are made of thermal insulation color steel, and the front and rear shed door walls are made of fireproof and thermal insulation materials. The front and rear shed door walls are both equipped with electric rolling shutter doors that are opened and closed by wireless remote control. The electric rolling shutter doors roll up and down the curtain pieces through the motor 5. The distance between the front shed door wall 15 and the rear shed door wall 16 should be greater than the length of the concrete tank truck. The rear shed door wall 16 has the same structural form as the front shed door wall 15. When a vehicle enters, the first door is opened, the vehicle enters between the front shed door wall 15 and the rear shed door wall 16, the first door is closed, the second door is opened, and the vehicle enters the tunnel entrance 31 or the tunnel construction area. A carriageway 18 is set in the middle of the ground inside the entrance insulation shed 1, and a sidewalk 17 is set on the side of the carriageway 18, and a dividing guardrail 19 is set between the carriageway 18 and the sidewalk 17. The front shed door wall 15 and the rear shed door wall 16 are provided with small doors on the side of the sidewalk 17.

[0018] like Figure 3 As shown, the tunnel end wall 13 is made of thermal insulation color steel, the bottom of the wall is close to the tunnel slope, leaving space for the construction tunnel pipe shed and the tunnel in and out, and the bottom and surrounding areas of the tunnel insulation shed are tightly sealed with structural adhesive.

[0019] The air duct 4 is arranged in the tunnel 3, and the air duct 4 extends from the tunnel 3 to the outside of the cave entrance insulation shed 1 and is connected to the tunnel fan 41 at the end. The heating system 2 includes a boiler room 21 arranged outside the cave entrance insulation shed 1, and the boiler room 21 is connected to the water pipe 22 and the return pipe 23 arranged in the cave entrance insulation shed 1 and the tunnel 3, and the water pipe 22 and the return pipe 23 are connected with heat sinks.

[0020] like Figure 1 and Figure 4 As shown, the air duct 4 includes a heating pipe section 42, which is connected to the rear end of the tunnel fan 41. The front end of the tunnel fan 41 is an air inlet 44. A spiral tube 43 is axially arranged in the heating pipe section 42. A three-way valve is connected to the water supply pipe 22 and the return pipe 23, and a pipeline is led out to connect the two ends of the spiral tube 43 respectively.

[0021] According to the temperature in the shed, a boiler is used for auxiliary heating. The heat sink in the cave or the valve of the tunnel fan 41 and the spiral tube 43 can be opened to send hot air to the construction area through the air duct 4 to increase the temperature. According to the temperature requirements of the construction area, the heat sink in the cave or the tunnel fan 41 can be controlled by the three-way valve 24 to heat separately or simultaneously.

[0022] The tunnel portal insulation and auxiliary heating device of the utility model can improve the temperature of the tunnel portal section or the construction area in the tunnel through insulation and auxiliary heating, so that the temperature of the tunnel portal section and the construction area can meet the needs of concrete construction and personnel. The insulation function is to use insulation materials to form a closed area to reduce heat loss, and to meet the needs of vehicles and personnel entering and exiting through the front and rear doors, while reducing the entry of cold air and reducing internal heat loss, so as to achieve a stable temperature in the construction area. The auxiliary heating is to heat water through the boiler room 21 on the one hand, and achieve the heating effect through the water pipe 22, the heat sink, and the return pipe 23 on the other hand. A heating pipe section 42 is added after the tunnel fan 41, and the principle is similar to that of an electric hair dryer. The tunnel fan 41 inhales air, and after being heated by the spiral pipe 43, it is blown into the construction area through the air duct 4 to achieve the effect of increasing the temperature. The utility model can better increase the temperature of the construction area, meet the requirements of concrete for ambient temperature, improve the environment of construction personnel, and improve construction efficiency. It enriches the tunnel construction technology and has extremely wide promotion value.

[0023] The specific construction steps are as follows: after the tunnel side slope 32 of tunnel 3 is completed, the ground of the tunnel opening 31 section is leveled and hardened, and at the same time, the opening insulation shed, fan anchor bolts and pipelines are embedded in advance, the greenhouse steel pipe columns and beams, the top trusses, the side walls and the opening end walls are installed with insulation color steel, the front and rear shed door walls, the ceiling 14 of the top transparent insulation board and the top motor 5 and waterproof insulation quilt 6, the dividing guardrail 19 between the carriageway 18 and the sidewalk 17, the tunnel fan 41 and the heating pipe section 42, the air duct 4, the boiler and pipelines, the heat sink and the thermometer.

[0024] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A tunnel entrance insulation and auxiliary heating device, characterized in that: The invention comprises a cave entrance insulation shed (1), the cave entrance insulation shed (1) comprises a left wall (11), a right wall (12), a cave entrance end wall (13), a ceiling (14), and a front shed door wall (15) and a rear shed door wall (16) arranged at the front and rear of the side away from the cave entrance, the ceiling (14) is made of a transparent insulation material, a waterproof insulation blanket (6) is arranged on the top of the ceiling (14), and the blanket is covered or rolled up by a motor (5) at the top connected to a rotating rod, the left and right side walls are made of insulation color steel, the front and rear shed door walls are made of fireproof insulation material, and the front and rear shed door walls are both provided with electric rolling shutter doors that are opened and closed by wireless remote control, the cave entrance end wall (13) is made of insulation color steel, the bottom of the wall is close to the cave entrance slope, leaving a construction cave entrance pipe shed and a tunnel inlet and outlet space, and the bottom and surrounding of the cave entrance insulation shed (1) are tightly sealed with structural adhesive.

2. The tunnel entrance insulation and auxiliary heating device according to claim 1, characterized in that: The invention comprises a heating system (2), wherein the heating system (2) comprises a boiler room (21) arranged outside a cave entrance insulation shed (1), the boiler room (21) being connected to a water supply pipe (22) and a water return pipe (23) arranged inside the cave entrance insulation shed (1) and a tunnel (3), and heat sinks are connected to the water supply pipe (22) and the water return pipe (23).

3. The tunnel portal insulation and auxiliary heating device according to claim 2, characterized in that: The air duct (4) includes an air duct (4), which extends from the tunnel (3) to the outside of the cave entrance insulation shed (1) and is connected to a tunnel fan (41) at the end. The air duct (4) includes a heating pipe section (42), which is connected to the tunnel fan (41). A spiral pipe (43) is arranged in the heating pipe section (42) along the axial direction, and the two ends of the spiral pipe (43) are respectively connected to a water supply pipe (22) and a water return pipe (23).

4. The tunnel entrance insulation and auxiliary heating device according to claim 1, characterized in that: A carriageway (18) is arranged in the middle of the ground inside the cave entrance insulation shed (1), a sidewalk (17) is arranged on the side of the carriageway (18), and a separation guardrail (19) is arranged between the carriageway (18) and the sidewalk (17).

5. The tunnel entrance insulation and auxiliary heating device according to claim 4, characterized in that: The front shed door wall (15) and the rear shed door wall (16) are provided with small doors on the side of the sidewalk (17).

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