A gas emission system for large-section traffic tunnel

Abstract

The present invention belongs to the technical field of tunnel construction, and specifically is a gas emission system for a large-section traffic tunnel, comprising a monitoring module, a control module being installed on the surface of the monitoring module; an emission module being fixedly installed on the surface of the control module; the monitoring module being used to monitor the gas concentration in the tunnel; the control module being used to control the emission module to emit air into the tunnel; during operation, when the monitoring module detects that the gas concentration in the tunnel is too high, a signal is transmitted to the control module through the monitoring module, so that the control module controls the fan drive in the emission module, so that the fan absorbs air and emits air into the tunnel, diluting the concentration of tunnel gas, effectively ensuring the safety of the tunnel cavity, bringing safety to the construction of high-speed railways, realizing the integrated monitoring and processing of tunnel gas, saving resources, and effectively ensuring that the gas concentration in the tunnel cavity is within a safe range.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, in particular to a gas emission system for a large-section traffic tunnel. Background Art

[0002] During tunnel construction, it is often encountered that the tunnel passes through coal-bearing strata. Gas in the strata will burst into the tunnel. This type of tunnel is defined as a gas tunnel. After the gas tunnel is lined, gas will penetrate into the tunnel from the rock strata around the tunnel. If the gas in the tunnel cannot be discharged from the tunnel in time, it will cause danger to the construction and construction workers.

[0003] A Chinese patent with publication number CN204371412U discloses a tunnel gas emission system. The tunnel gas emission system includes: a high-gas tunnel, an exhaust pipe arranged on both sides of the high-gas tunnel, a plurality of annular water-permeable blind pipes, a longitudinal water-permeable blind pipe and a drainage pipe; the annular water-permeable blind pipe is arranged on the initial support surface of the high-gas tunnel along the annular direction of the high-gas tunnel, the longitudinal water-permeable blind pipe is connected to the annular water-permeable blind pipe, the drainage pipe is arranged below the exhaust pipe, and a plurality of gas-water separation devices are arranged between the exhaust pipe and the drainage pipe, and the gas-water separation devices are respectively connected to the longitudinal water-permeable blind pipe, the exhaust pipe and the drainage pipe. The gas-water separation device in the tunnel gas emission system separates gas and water, effectively discharges gas in the tunnel, and solves the problems of safe tunnel construction and railway operation safety; it has the advantages of simple structure and good stability, and has a wide range of applications.

[0004] In the prior art, only the water vapor in the gas is separated, and the gas concentration cannot be monitored in time, and it is difficult to dilute the gas concentration in time, which affects the construction of the railway tunnel and has low safety.

[0005] To this end, the present invention provides a gas emission system for a large-section traffic tunnel. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a gas emission system for a large-section traffic tunnel described in the present invention comprises a monitoring module, a control module is installed on the surface of the monitoring module; an emission module is fixedly installed on the surface of the control module;

[0008] The monitoring module is used to monitor the gas concentration in the tunnel;

[0009] The control module is used to control the discharge module to discharge air into the tunnel;

[0010] The discharge module is used to control the fan to suck air and discharge air into the tunnel;

[0011] The emission module includes an annular support seat; when working, when the monitoring module detects that the gas concentration in the tunnel is too high, the monitoring module transmits a signal to the control module, so that the control module controls the fan drive in the emission module, so that the fan absorbs air and discharges air into the tunnel, dilutes the concentration of tunnel gas, effectively ensures the safety of the tunnel chamber, brings safety to the construction of high-speed railways, realizes the integrated monitoring and processing of tunnel gas, saves resources and can effectively ensure that the gas concentration in the tunnel chamber is within a safe range.

[0012] Preferably, a secondary lining seat is provided inside the annular support seat; an air intake pipe is fixedly installed inside the annular support seat; the air inlet of the air intake pipe is arranged at the entrance of the tunnel, and the air intake pipe extends longitudinally; an annular air vent is fixedly installed inside the annular support seat; the two ends of the annular air vent are respectively connected to the air intake pipe; a discharge pipe is fixedly connected to the outer surface of the annular air vent; a fan is fixedly connected to the side of the air intake pipe close to the tunnel entrance; a plurality of air holes are opened on the surface of the annular air vent, and the air holes are arranged in a circular manner on the annular air vent The outer surface of the air pipe; when working, since the gas density is lower than that of air and it does not react with the components in the air, the gas will slowly enter the annular air pipe through the air holes, and the gas will float above the annular air pipe. When the air flow is introduced into the inside of the air intake pipe, the air flow in the air intake pipe has a faster conveying speed, so it will enter the annular air pipe, and then the gas in the annular air pipe will be discharged through the discharge pipe. It is more convenient to use and can discharge the gas faster, thereby reducing the gas concentration in the tunnel, which is beneficial to the construction of the staff and ensures the operation and traffic safety of the tunnel.

[0013] Preferably, an air intake seat is fixedly connected to one side of the air intake pipe near the tunnel entrance; the air intake seat is designed to be wide outside and narrow inside; the shape of the exhaust pipe on one side near the tunnel exit is designed to be wide outside and narrow inside; when working, the shapes of the air intake seat and the exhaust pipe are both designed to be wide outside and narrow inside, which is conducive to the entry of air into the air intake pipe and the discharge of gas.

[0014] Preferably, the air intake pipe is fixedly connected to a longitudinal drainage pipe on one side close to the secondary lining seat; a floating plate is arranged inside the longitudinal drainage pipe; the floating plate is made of foam; the outer surface of the floating plate is rotatably connected to a rotating column; the outer surface of the rotating column is provided with rotating blades; the outer surface of the floating plate is fixedly connected to the inner wall of the longitudinal drainage pipe by a connecting rope; during operation, when tunnel water containing gas passes through the longitudinal drainage pipe, the floating plate, the rotating column and the rotating blades will rotate at a certain angle due to the impact force of the water flow, so that the floating plate will drive the rotating column and the rotating blades to move irregularly, so that the gas contained in the water floats out as soon as possible, reducing the contact between the gas and water, and reducing the amount of gas dissolved in the water.

[0015] Preferably, an air supply pipe is fixedly connected to the surface of the longitudinal drainage pipe; the upper end of the air supply pipe is connected to the surface of the air intake pipe; the number of the air supply pipes is set to be multiple, and they are arranged in a linear array on the outer surface of the longitudinal drainage pipe; the outer surface of the rotating column is rotatably connected to a swing rod; the outer surface of the swing rod is fixedly connected to a crushing column; the outer surface of the crushing column is provided with a plurality of crushing heads; when working, multiple air supply pipes are provided, which can enable part of the gas in the water to enter the air intake pipe through the longitudinal drainage pipe, thereby realizing water-gas separation of the gas, ensuring the effect of drainage and exhaust, reducing the contact between gas and water, and reducing the amount of gas dissolved in water; and in the process of rotation of the rotating column, the rotating column will simultaneously drive the crushing columns on its surface to move irregularly, so that the crushing columns will transport and export part of the gravel entering the longitudinal drainage pipe as soon as possible, and can also crush the gravel to avoid the accumulation of too much gravel causing the transportation of water flow.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The gas emission system for a large-section traffic tunnel described in the present invention, when the monitoring module detects that the gas concentration in the tunnel is too high, transmits a signal to the control module through the monitoring module, so that the control module controls the fan drive in the emission module, so that the fan absorbs air and discharges air into the tunnel, dilutes the concentration of tunnel gas, effectively ensures the safety of the tunnel chamber, brings safety to the construction of high-speed railways, realizes the integrated monitoring and processing of tunnel gas, saves resources and can effectively ensure that the gas concentration in the tunnel chamber is within a safe range.

[0018] 2. The gas emission system for a large-section traffic tunnel described in the present invention, by setting up a plurality of air supply pipes, can enable part of the gas in the water to enter the air intake pipe through the longitudinal drainage pipe, thereby realizing water-gas separation of the gas, ensuring the effect of drainage and exhaust, reducing the contact between gas and water, and reducing the amount of gas dissolved in water; and in the process of rotation of the rotating column, the rotating column will simultaneously drive the crushing column on its surface to move irregularly, so that the crushing column will transport and export part of the gravel entering the longitudinal drainage pipe as quickly as possible, and can also crush the gravel to avoid the accumulation of too much gravel and cause the transportation of water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a system flow chart of the present invention;

[0021] Figure 2 It is a three-dimensional diagram of the annular support seat of the present invention;

[0022] Figure 3 is a cross-sectional view of the longitudinal drain pipe of the present invention;

[0023] Figure 4 The present invention Figure 3 A magnified view of the structure at A;

[0024] Figure 5 It is a partial structural schematic diagram of the discharge pipe in the present invention;

[0025] In the figure: 1. Annular support seat; 2. Secondary lining seat; 3. Air inlet pipe; 4. Annular ventilation pipe; 5. Discharge pipe; 6. Fan; 7. Inlet seat; 8. Longitudinal drainage pipe; 9. Floating plate; 10. Rotating column; 11. Rotating blades; 12. Air supply pipe; 13. Swing rod; 14. Crushing column. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] Embodiment 1

[0028] like Figure 1 As shown, a gas emission system for a large-section traffic tunnel according to an embodiment of the present invention comprises a monitoring module, a control module is mounted on the surface of the monitoring module; and an emission module is fixedly mounted on the surface of the control module;

[0029] The monitoring module is used to monitor the gas concentration in the tunnel;

[0030] The control module is used to control the discharge module to discharge air into the tunnel;

[0031] The discharge module is used to control the fan 6 to suck air and discharge air into the tunnel;

[0032] The emission module includes an annular support seat 1; when working, when the monitoring module detects that the gas concentration in the tunnel is too high, the monitoring module transmits a signal to the control module, so that the control module controls the fan 6 in the emission module to drive, so that the fan 6 absorbs air and discharges air into the tunnel, dilutes the concentration of tunnel gas, effectively ensures the safety of the tunnel chamber, brings safety to the construction of high-speed railways, realizes the integrated monitoring and processing of tunnel gas, saves resources and can effectively ensure that the gas concentration in the tunnel chamber is within a safe range.

[0033] like Figures 2 to 5 As shown, a secondary lining seat 2 is arranged inside the annular support seat 1; an air intake pipe 3 is fixedly installed inside the annular support seat 1; the air inlet of the air intake pipe 3 is arranged at the entrance of the tunnel, and the air intake pipe 3 extends longitudinally; an annular air vent 4 is fixedly installed inside the annular support seat 1; the two ends of the annular air vent 4 are respectively connected to the air intake pipe 3; a discharge pipe 5 is fixedly connected to the outer surface of the annular air vent 4; a fan 6 is fixedly connected to the side of the air intake pipe 3 close to the tunnel entrance; a plurality of air holes are opened on the surface of the annular air vent 4, and the air holes are arranged in a circular manner On the outer surface of the annular air pipe 4; when working, since the gas density is less than that of air and does not react with the components in the air, the gas will slowly enter the annular air pipe 4 through the air holes, and the gas will float above the annular air pipe 4, and when the air flow is introduced into the inside of the air intake pipe 3, the air flow conveying speed in the air intake pipe 3 is faster, so it will enter the annular air pipe 4, and then the gas in the annular air pipe 4 will be discharged through the discharge pipe 5. It is more convenient to use and can discharge the gas faster, thereby reducing the gas concentration in the tunnel, which is beneficial to the construction of the staff and ensures the operation and traffic safety of the tunnel.

[0034] The air intake pipe 3 is fixedly connected to an air intake seat 7 on one side near the tunnel entrance; the air intake seat 7 is designed to be wide outside and narrow inside; the exhaust pipe 5 is designed to be wide outside and narrow inside on one side near the tunnel exit; when working, the air intake seat 7 and the exhaust pipe 5 are both designed to be wide outside and narrow inside, which is conducive to the entry of air into the air intake pipe 3 and the discharge of gas.

[0035] The air intake pipe 3 is fixedly connected to a longitudinal drainage pipe 8 on one side close to the secondary lining seat 2; a floating plate 9 is arranged inside the longitudinal drainage pipe 8; the floating plate 9 is made of foam; a rotating column 10 is rotatably connected to the outer surface of the floating plate 9; a rotating blade 11 is arranged on the outer surface of the rotating column 10; the outer surface of the floating plate 9 is fixedly connected to the inner wall of the longitudinal drainage pipe 8 by a connecting rope; when working, when the tunnel water containing gas passes through the longitudinal drainage pipe 8, the floating plate 9, the rotating column 10 and the rotating blade 11 will rotate at a certain angle due to the impact force of the water flow, so that the floating plate 9 will drive the rotating column 10 and the rotating blade 11 to move irregularly, so that the gas contained in the water floats out as soon as possible, reducing the contact between the gas and water, and reducing the amount of gas dissolved in the water.

[0036] The surface of the longitudinal drainage pipe 8 is fixedly connected with an air supply pipe 12; the upper end of the air supply pipe 12 is connected to the surface of the air intake pipe 3; the number of the air supply pipes 12 is set to be multiple, and they are arranged in a linear array on the outer surface of the longitudinal drainage pipe 8; the outer surface of the rotating column 10 is rotatably connected with a swing rod 13; the outer surface of the swing rod 13 is fixedly connected with a crushing column 14; the outer surface of the crushing column 14 is provided with a plurality of crushing heads; when working, multiple air supply pipes 12 are set, which can make part of the gas in the water pass through the longitudinal drainage pipe 8 and enter the air intake pipe 3, realize the water-gas separation of the gas, ensure the effect of drainage and exhaust, reduce the contact between gas and water, and reduce the amount of gas dissolved in water; and in the process of rotation of the rotating column 10, the rotating column 10 will simultaneously drive the crushing columns 14 on its surface to move irregularly, so that the crushing columns 14 will transport and export part of the gravel entering the longitudinal drainage pipe 8 as soon as possible, and can also crush the gravel to avoid the accumulation of too much gravel and cause the transportation of water flow.

[0037] During operation, since the density of gas is less than that of air and it does not react with components in the air, the gas will slowly enter the annular air pipe 4 through the air holes, and the gas will float above the annular air pipe 4. When the airflow is introduced into the air intake pipe 3, the airflow in the air intake pipe 3 is transported at a faster speed, so that the gas will enter the annular air pipe 4, and then the gas in the annular air pipe 4 will be discharged through the discharge pipe 5. It is more convenient to use and can discharge the gas faster, thereby reducing the gas concentration in the tunnel, which is beneficial to the construction of the workers and ensures the tunnel. The air intake seat 7 and the discharge pipe 5 are both designed to be wide outside and narrow inside, which is conducive to the entry of air into the air intake pipe 3 and the discharge of gas. When the tunnel water containing gas passes through the longitudinal drainage pipe 8, the floating plate 9, the rotating column 10 and the rotating blades 11 will rotate at a certain angle due to the impact of the water flow, so that the floating plate 9 will drive the rotating column 10 and the rotating blades 11 to move irregularly, so that the gas contained in the water floats out as soon as possible, reducing the contact between gas and water and reducing the amount of gas dissolved in water.

[0038] A plurality of air delivery pipes 12 are provided, which can allow part of the gas in the water to enter the air intake pipe 3 through the longitudinal drainage pipe 8, thereby realizing water-gas separation of the gas, ensuring the effect of drainage and exhaust, reducing the contact between gas and water, and reducing the amount of gas dissolved in water; and in the process of the rotation of the rotating column 10, the rotating column 10 will simultaneously drive the crushing column 14 on its surface to move irregularly, so that the crushing column 14 will transport and export part of the gravel entering the longitudinal drainage pipe 8 as soon as possible, and can also crush the gravel to avoid the accumulation of too much gravel causing the transport of water flow;

[0039] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 2 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A gas emission system for a large-section traffic tunnel, characterized by: It comprises a monitoring module, a control module is installed on the surface of the monitoring module; an emission module is fixedly installed on the surface of the control module; The monitoring module is used to monitor the gas concentration in the tunnel; The control module is used to control the discharge module to discharge air into the tunnel; The discharge module is used to control the fan (6) to suck air and discharge the air into the tunnel; The discharge module comprises an annular support seat (1); A secondary lining seat (2) is arranged inside the annular support seat (1); an air intake pipe (3) is fixedly installed inside the annular support seat (1); the air inlet of the air intake pipe (3) is arranged at the entrance of the tunnel, and the air intake pipe (3) extends longitudinally; an annular air vent pipe (4) is fixedly installed inside the annular support seat (1); both ends of the annular air vent pipe (4) are respectively connected to the air intake pipe (3); a discharge pipe (5) is fixedly connected to the outer surface of the annular air vent pipe (4); a fan (6) is fixedly connected to the side of the air intake pipe (3) close to the tunnel entrance; a plurality of air holes are opened on the surface of the annular air vent pipe (4), and the air holes are arranged in a circular pattern on the outer surface of the annular air vent pipe (4); The air intake pipe (3) is fixedly connected to an air intake seat (7) on one side close to the tunnel entrance; the air intake seat (7) is designed to be wide outside and narrow inside; the exhaust pipe (5) is designed to be wide outside and narrow inside on one side close to the tunnel exit; A longitudinal drainage pipe (8) is fixedly connected to one side of the air intake pipe (3) close to the secondary lining seat (2); a floating plate (9) is arranged inside the longitudinal drainage pipe (8); the floating plate (9) is made of foam; a rotating column (10) is rotatably connected to the outer surface of the floating plate (9); a rotating blade (11) is arranged on the outer surface of the rotating column (10); the outer surface of the floating plate (9) is fixedly connected to the inner wall of the longitudinal drainage pipe (8) via a connecting rope; The surface of the longitudinal drainage pipe (8) is fixedly connected to an air supply pipe (12); the upper end of the air supply pipe (12) is connected to the surface of the air intake pipe (3); the number of the air supply pipes (12) is set to be multiple, and they are arranged in a linear array on the outer surface of the longitudinal drainage pipe (8); the outer surface of the rotating column (10) is rotatably connected to a swing rod (13); the outer surface of the swing rod (13) is fixedly connected to a crushing column (14); The outer surface of the crushing column (14) is provided with a plurality of crushing heads.

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