Intelligent steam curing trolley capable of adapting to tunnels with different lengths

Abstract

The utility model discloses an intelligent steam curing trolley capable of adapting to tunnels with different lengths, which relates to the field of tunnel secondary lining concrete curing, is used for curing a secondary lining concrete layer and comprises a supporting assembly, an arc-shaped arch frame, waterproof heat preservation cloth, an arc-shaped support, an arc-shaped support moving assembly and a steam generating assembly. The supporting assembly is arranged on the inner side of the arc-shaped lagging jack and supports the arc-shaped lagging jack. The waterproof heat preservation cloth is arranged on the surface of the arc-shaped arch frame, the arc-shaped support is arranged on the arc-shaped arch frame, the arc-shaped support moving assembly can drive the arc-shaped support to move along the arc-shaped arch frame, a plurality of nozzles are arranged on the arc-shaped support, and the steam generation assembly is connected with the nozzles through pipelines. The arc-shaped supporting moving assembly moves freely and periodically, different strokes are set according to different lengths of the pouring sections, and therefore more energy-saving steam curing of tunnels with the pouring sections of different lengths is achieved.

Description

Technical Field

[0001] The utility model relates to the field of tunnel secondary lining concrete maintenance, in particular to an intelligent steam maintenance trolley which can adapt to tunnels of different lengths. Background Art

[0002] Steam curing uses high-temperature steam to maintain the temperature and humidity conditions required by concrete in the initial stage to accelerate its hardening process and increase its strength. Steam curing is not only suitable for ordinary concrete, but also includes high-performance concrete and lightweight concrete.

[0003] Steam curing technology is now widely used in engineering construction. The steam curing of tunnels and tunnel projects mainly relies on steam curing trolleys. Steam curing trolleys can provide the temperature, humidity and enclosed space required for steam curing of secondary lining concrete. However, the existing steam curing trolleys still have the following problems that have not been solved: (1) In the actual construction process, the length of the tunnel segment casting section is not fixed. When the concrete is insufficient or the end section appears during casting, the casting section length may be shorter than the designed casting section length. How can a more energy-saving and environmentally friendly steam curing be implemented for the casting section that is shorter than the designed length? (2) Due to the gaps between the nozzles on the curing system of the steam curing trolley, the steam cannot be sprayed evenly onto the surface of the secondary lining concrete during curing (part of the surface of the secondary lining concrete is not covered by high-temperature steam), resulting in a decrease in curing quality. How can the secondary lining concrete be cured more evenly to improve the quality of tunnel lining curing?

[0004] In order to solve the above problems, it is very necessary to provide a new type of tunnel secondary lining concrete steam curing trolley. Utility Model Content

[0005] In view of the deficiencies in the prior art and in order to perform steam-curing on the secondary lining structure concrete of a tunnel in a more efficient, energy-saving and environmentally friendly manner, the utility model provides an intelligent steam-curing trolley which can adapt to tunnels of different lengths, and is used for curing the secondary lining concrete layer, comprising a support assembly, an arc-shaped arch frame, a waterproof and heat-insulating cloth, an arc-shaped support, an arc-shaped support moving assembly and a steam generating assembly; the support assembly is arranged on the inner side of the arc-shaped arch frame to support it; the waterproof and heat-insulating cloth is arranged on the surface of the arc-shaped arch frame, the arc-shaped support is arranged on the arc-shaped arch frame, the arc-shaped support moving assembly can drive the arc-shaped support to move along the arc-shaped arch frame, and a plurality of nozzles are arranged on the arc-shaped support, and the steam generating assembly is connected to the nozzles through a pipeline.

[0006] The arc-shaped support moving assembly moves freely and periodically, and different strokes are set according to the length of the casting section, thereby achieving more energy-saving steam maintenance for tunnels with casting sections of different lengths.

[0007] As a further preference of the utility model, it also includes annular airbags and longitudinal airbags; the longitudinal airbags are arranged at the bottom of both ends of the arc-shaped arch frame; the annular airbags are arranged on the arc-shaped arch frame, the bottom of the annular airbags is in close contact with the waterproof insulation cloth, and the top is in close contact with the second lining concrete layer, the second lining concrete layer, the annular airbags, the longitudinal airbags and the waterproof insulation cloth together constitute a closed cavity for steam curing of the second lining concrete layer, and the arc support is arranged on the arc-shaped arch frame in the closed cavity, and can move along the length direction of the arc-shaped arch frame.

[0008] As a further preferred embodiment of the utility model, the support assembly includes a support portal, a transverse support and a vertical support; the support portal is provided with travel wheels on both sides of the bottom, the transverse support is provided on both sides of the support portal, the vertical support is provided above the support portal, and the transverse support and the vertical support are both connected to the arc-shaped arch frame to support the arc-shaped arch frame. The travel wheels of the steam curing trolley are driven by the secondary lining concrete trolley in the tunnel.

[0009] As a further preferred embodiment of the present invention, the arc support moving assembly includes a motor, a track and a pulley; the track is arranged on the arc arch along the length direction of the arc arch, the pulleys are arranged at both ends of the arc support, the pulleys are movably arranged on the track, and the motor is connected to the pulleys. The arc support is connected to the pulleys, and the pulleys are driven by the motor and can move periodically on the track.

[0010] As a further preferred embodiment of the present invention, the steam generating assembly includes a water tank, a water pump and a steam generator; a drain outlet is provided at the bottom of the arc-shaped arch frame, and the drain outlet, the water pump, the water tank, the steam generator and the nozzle are connected in sequence through pipes.

[0011] As a further preferred embodiment of the present invention, a temperature and humidity sensor is provided on the waterproof and thermal insulation cloth.

[0012] As a further preferred embodiment of the present invention, an intelligent control center is also included, and the water pump, motor, steam generator and temperature and humidity sensors are all electrically connected to the intelligent control center.

[0013] As a further preferred embodiment of the present invention, the pulley includes a front pulley and a rear pulley, and the distance between the front pulley and the rear pulley on the same side is half of that of the intelligent steam curing trolley.

[0014] As a further preferred embodiment of the present invention, a ventilation pipe bracket is provided below the supporting door frame.

[0015] As a further preferred embodiment of the present invention, the arc-shaped support is a steel structure with a hollow interior, which can support the maintenance system and serve as a steam delivery pipeline.

[0016] The utility model has the following beneficial effects:

[0017] 1. The arc-shaped support moving assembly moves freely and periodically, and different strokes are set according to the length of the casting section, so as to achieve more energy-saving steam maintenance for tunnels with different casting sections.

[0018] 2. Since the rail pulley can move freely in the length direction of the tunnel, the high-temperature steam can cover the lining concrete surface more evenly, thereby achieving more efficient tunnel maintenance and improving the maintenance quality.

[0019] 3. A drain outlet is set up to discharge the condensed water during the steam curing process, and the condensed water is pumped into the water tank for reuse by the system, which indirectly reduces the water consumption during the curing process; compared with directly discharging the condensed water on the tunnel surface, this design will not cause water accumulation in the tunnel, creating a better working environment for construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the intelligent steam maintenance trolley in the utility model;

[0021] Figure 2 It is a side view schematic diagram of the intelligent steam curing trolley curing system in the utility model;

[0022] Figure 3 The utility model is a schematic diagram of the pulley and track structure of the intelligent steam maintenance trolley.

[0023] Among them: 1. Support door frame; 2. Ventilation pipe bracket; 3. Walking wheel; 4. Longitudinal airbag; 5. Horizontal support; 6. Water tank; 7. Water pump; 8. Second lining concrete layer; 9. Annular airbag; 10. Arc arch frame; 11. Temperature and humidity sensor; 12. Vertical support; 13. Waterproof insulation cloth; 14. Arc support; 15. Nozzle; 16. Steam generator; 17. Intelligent control center; 18. Pulley; 19. Track; 20. Drain; 21. Retractable hose; 22. Motor. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0025] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0026] like Figures 1 to 3 As shown, an intelligent steam curing trolley that can adapt to tunnels of different lengths includes a support gantry 1, and two running wheels 3 are installed on both sides of the bottom of the support gantry 1. The running wheels of the steam curing trolley are driven by the secondary lining concrete trolley in the tunnel. The left and right sides of the support gantry 1 are provided with lateral supports 5, and the top of the support gantry 1 is provided with vertical supports 12. The lateral supports 5 and the vertical supports 12 are connected to the arc-shaped arch frame 10 to support the arc-shaped arch frame 10. An annular airbag 9 is installed on the upper part of the arc-shaped arch frame 10, and longitudinal airbags 4 are installed at the bottom of both ends of the arc-shaped arch frame 10. The surface of the arc-shaped arch frame 10 is provided with a waterproof and heat-insulating cloth 13. The waterproof and heat-insulating cloth 13 is made of microfiber heat-insulating cotton cloth, and a temperature and humidity sensor 11 is arranged on the waterproof and heat-insulating cloth 13 to monitor the temperature and humidity of the curing environment. The temperature and humidity data are transmitted to the intelligent control center 17 in real time through the wireless network. The annular airbag 9 is arranged on the arc-shaped arch frame 10, and the bottom of the annular airbag 9 is in close contact with the waterproof insulation cloth 13, and the top is in close contact with the secondary lining concrete layer 8. The annular airbag 9 is arranged at both ends of the length direction of the arc-shaped arch frame 10, and the annular airbag 9 and the longitudinal airbag 4 both play a sealing role; the secondary lining concrete layer 8, the annular airbag 9, the longitudinal airbag 4 and the waterproof insulation cloth 13 are in close contact with each other, and together form a closed cavity for steam curing of the secondary lining concrete. The arc support 14 is arranged on the arc-shaped arch frame 10 in the closed cavity, and can move along the length direction of the arc-shaped arch frame 10 under the drive of the arc support moving component.

[0027] Support plates are installed on both sides of the support door frame 1, a water tank 6 and a water pump 7 are placed on the left support plate, and a water tank 6, a water pump 7, a steam generator 16 and an intelligent control center 17 are placed on the right support plate; the water pump 7 is connected to the drain outlet 20 through a pipeline to pump the condensed steam water into the water tank 6 for reuse.

[0028] The steam generator 16 passes high-temperature steam into the arc support 14 through the retractable hose 21, and finally sprays it out through the nozzle 15 to steam-cured the tunnel; the retractable hose 21 can be freely extended in length and has great ductility. The retractable hose 21 is connected to the arc support 14 of the curing system to pass high-temperature steam into the arc support 14; the nozzle 15 is trumpet-shaped and is used to diffuse and spray high-temperature steam to the concrete surface; the arc support 14 not only supports the curing system, but also serves as a steam delivery pipeline. The track 19 is fixedly installed on both sides of the bottom end of the arc arch 10, and the arc support 14 is connected to the pulley 18. The pulley 18 is driven by the motor 22 and can move periodically on the track 19; the pulley 18 consists of a front pulley and a rear pulley, and the distance between the front and rear pulleys is half the length of the trolley. The motor 22 drives the pulley 18 to move back and forth in the length direction of the tunnel for steam curing, and the motor 22 can control the travel distance of the pulley 18 through the intelligent control center 17. The utility model can not only realize steam curing of tunnel casting sections of different lengths, but also has a better curing effect.

[0029] The water pump 7, steam generator 16, temperature and humidity sensor 11, and motor 22 are all controlled by the intelligent control center 17. A ventilation pipe bracket 2 is arranged below the support gantry 1 for shuttling ventilation ducts arranged in the tunnel.

[0030] The working process of the intelligent steam curing trolley of the utility model which can adapt to tunnels of different lengths is as follows: when it is necessary to steam-curing the tunnel secondary lining concrete, the trolley is assembled outside the tunnel in advance, and after being driven to the designated curing area by the tunnel secondary lining concrete trolley, the air pump is turned on to inflate the annular airbag 9 and the longitudinal airbag 4, so that they are closely fitted with the inner wall of the tunnel and the waterproof insulation cloth 13, and the annular airbag 9, the longitudinal airbag 4, the waterproof insulation cloth 13 and the inner wall of the tunnel together form a closed cavity required for curing, and the arc support 14 can move in the closed cavity along the length direction of the arc arch 10. The steam generator 16 is turned on to generate high-temperature steam, and the high-temperature steam is transported to the arc support 14 through the retractable hose 21, and sprayed out by the nozzle 15. The steam condensed water is pumped out from the drain port 20 to the water tank 6 through the water pump 7, and is reused by the steam generator 16. The temperature and humidity sensor 11 monitors the curing temperature in real time, and when the set temperature is exceeded, the system will sound an alarm. The water pump 7, steam generator 16, motor 22 and temperature and humidity sensor 11 are all controlled by the intelligent control center 17. When the length of the tunnel one-time casting module does not exceed the distance between the front and rear pulleys, the motor 22 is turned off and high-temperature steam is introduced to steam-cured the tunnel. When the length of the tunnel one-time casting module exceeds the distance between the front and rear pulleys, the motor 22 is turned on, and the round trip of the motor is set in the intelligent control center 17 according to the length of the casting section, and high-temperature steam is introduced to steam-cured the tunnel.

[0031] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. An intelligent steam curing trolley capable of adapting to tunnels of different lengths, used for curing a secondary lining concrete layer (8), characterized in that: It comprises a support assembly, an arc-shaped arch frame (10), a waterproof heat-insulating cloth (13), an arc-shaped support (14), an arc-shaped support moving assembly and a steam generating assembly; the support assembly is arranged inside the arc-shaped arch frame (10) to support it; The waterproof heat-insulating cloth (13) is arranged on the surface of the arc-shaped arch frame (10), the arc-shaped support (14) is arranged on the arc-shaped arch frame (10), the arc-shaped support moving component can drive the arc-shaped support (14) to move along the arc-shaped arch frame (10), and a plurality of nozzles (15) are arranged on the arc-shaped support (14), and the steam generating component is connected to the nozzles (15) through pipelines.

2. The intelligent steam curing trolley capable of adapting to tunnels of different lengths according to claim 1 is characterized in that: It also includes an annular airbag (9) and a longitudinal airbag (4); the longitudinal airbag (4) is arranged at the bottom of both ends of the arc-shaped arch frame (10); the annular airbag (9) is arranged on the arc-shaped arch frame (10); the bottom of the annular airbag (9) is in close contact with the waterproof insulation cloth (13), and the top is in close contact with the secondary lining concrete layer (8); the secondary lining concrete layer (8), the annular airbag (9), the longitudinal airbag (4) and the waterproof insulation cloth (13) together form a closed cavity for steam curing of the secondary lining concrete layer (8); the arc support (14) is arranged on the arc-shaped arch frame (10) in the closed cavity, and can move along the length direction of the arc-shaped arch frame (10).

3. The intelligent steam curing trolley capable of adapting to tunnels of different lengths according to claim 1 is characterized in that: The support assembly comprises a support portal (1), a transverse support (5) and a vertical support (12); walking wheels (3) are installed on both sides of the bottom of the support portal (1), the transverse support (5) is arranged on both sides of the support portal (1), and the vertical support (12) is arranged above the support portal (1), and the transverse support (5) and the vertical support (12) are both connected to the arc-shaped arch frame (10) to support the arc-shaped arch frame (10).

4. The intelligent steam curing trolley capable of adapting to tunnels of different lengths according to claim 1 is characterized in that: The arc-shaped support moving assembly comprises a motor (22), a track (19) and a pulley (18); the track (19) is arranged on the arc-shaped arch frame (10) along the length direction of the arc-shaped arch frame (10), the track (19) is arranged at both ends of the arc-shaped support (14), the pulley (18) is movably arranged on the track (19), and the motor (22) is connected to the pulley (18).

5. The intelligent steam curing trolley capable of adapting to tunnels of different lengths according to claim 4 is characterized in that: The steam generating assembly comprises a water tank (6), a water pump (7) and a steam generator (16); a drain outlet (20) is provided at the bottom of the arc-shaped arch frame (10); the drain outlet (20), the water pump (7), the water tank (6), the steam generator (16) and the nozzle (15) are connected in sequence via pipes.

6. The intelligent steam curing trolley capable of adapting to tunnels of different lengths according to claim 5 is characterized in that: The waterproof heat-insulating cloth (13) is provided with a temperature and humidity sensor (11).

7. The intelligent steam curing trolley capable of adapting to tunnels of different lengths according to claim 6 is characterized in that: It also includes an intelligent control center (17), and the water pump (7), the motor (22), the steam generator (16) and the temperature and humidity sensor (11) are all electrically connected to the intelligent control center (17).

8. The intelligent steam curing trolley capable of adapting to tunnels of different lengths according to claim 4 is characterized in that: The pulley (18) comprises a front pulley and a rear pulley, and the distance between the front pulley and the rear pulley on the same side is half of that of the intelligent steam curing trolley.

9. The intelligent steam curing trolley capable of adapting to tunnels of different lengths according to claim 3 is characterized in that: A ventilation pipe bracket (2) is arranged below the supporting door frame (1).

10. The intelligent steam curing trolley capable of adapting to tunnels of different lengths according to claim 1, characterized in that: The arc-shaped support (14) is a steel structure and is hollow inside.

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