CN211435698U - Tunnel harmful gas intelligence sprays toxicity reduction system - Google Patents
Tunnel harmful gas intelligence sprays toxicity reduction system Download PDFInfo
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- CN211435698U CN211435698U CN201921951358.7U CN201921951358U CN211435698U CN 211435698 U CN211435698 U CN 211435698U CN 201921951358 U CN201921951358 U CN 201921951358U CN 211435698 U CN211435698 U CN 211435698U
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Abstract
The utility model discloses a tunnel harmful gas intelligence sprays toxicity reducing system. Comprises a harmful gas concentration monitoring device, a computer, a control circuit module and a spraying device, wherein the harmful gas concentration monitoring device comprises a plurality of harmful gas concentration sensors which are connected with the computer through a data transmission system, the spraying device comprises a plurality of spraying heads, a water tank, an automatic quick lime adding device arranged on the upper part of the water tank and a booster pump, the spraying heads are connected with a water supply pipe, a suction inlet of the booster pump is connected with a water outlet of the water tank, the output port of the water tank is connected with a water supply conduit, a stirrer is arranged in the water tank, the water inlet of the water tank is connected with the water outlet of a tunnel water supply pipe, an electronic regulating valve is arranged at a water outlet of the tunnel water supply pipe, the electronic regulating valve, a stirrer motor, a motor of the automatic quick lime adding device and a booster pump motor are all connected with a control circuit module, and the control circuit module is connected with the computer.
Description
Technical Field
The utility model relates to a tunnel harmful gas intelligence sprays toxicity reduction system for spray toxicity reduction to tunnel harmful gas.
Background
At present, a large number of tunnels are often required to be constructed in the process of constructing infrastructures such as roads, railways and the like. The toxic and harmful gas is one of the main factors influencing the safety of tunnel construction. The variety of harmful gases in tunnels is various, and hydrogen sulfide (H) is a harmful gas frequently disclosed at present2S), carbon dioxide (CO)2) Carbon monoxide (CO), ammonia (NH)3) Sulfur dioxide (SO)2) And gas and the like, and the high-concentration harmful gas easily causes poisoning, suffocation and other injuries to operators. At present, the concentration of harmful gases in a tunnel is reduced by adopting a ventilation and pumping mode, but the mode usually needs to be provided with high-power ventilation equipment, so that the construction cost is high; especially, a long tunnel has narrow space, long ventilation distance, long ventilation time, low toxicity reduction efficiency and great influence on the construction progress.
Such as carbon dioxide (CO)2) Harmful gases such as carbon monoxide (CO) and the like have the characteristics of no color and no odor, and different gas densities are different, so that the possible positions are different, and the gases are extremely easy to gather at unsmooth ventilation positions of an operation rack, a construction machine and the like in limited spaces such as a tunnel, so that the technical problem of how to realize large-area rapid toxicity reduction in the limited spaces of the tunnel is one of important measures for preventing harmful gas disasters of the tunnel.
Disclosure of Invention
To the above-mentioned defect that exists among the prior art, the utility model provides a can realize that the tunnel harmful gas intelligence of the interior large tracts of land of tunnel finite space toxicity that falls sprays toxicity reducing system fast.
The utility model discloses a realize through following technical scheme: the utility model provides a tunnel harmful gas intelligence sprays toxicity reduction system which characterized by: comprises a harmful gas concentration monitoring device, a computer, a control circuit module and a spraying device, wherein the harmful gas concentration monitoring device comprises a plurality of harmful gas concentration sensors which are respectively arranged at different positions of a tunnel operation area, the computer is arranged at the position of a tunnel opening, the harmful gas concentration sensors are connected with the computer through a data transmission system, the spraying device comprises a plurality of spraying heads, a water tank and a quick lime automatic adding device and a booster pump, the spraying heads are respectively arranged at the positions of a vault, an arch waist and a side wall of the tunnel opening wall, the spraying heads are connected with a water supply pipe, a suction inlet of the booster pump is connected with a water outlet of the water tank, the water supply pipe is connected with an output port of the booster pump, a stirrer is arranged in the water tank, the quick lime automatic adding device is arranged at the upper part of the water tank, the water inlet of the water tank is connected with the water outlet of the tunnel water supply pipe, the water outlet of the tunnel water supply pipe is provided with an electronic regulating valve, the electronic regulating valve, a stirrer motor, a motor of the automatic quick lime adding device and a booster pump motor are all connected with the control circuit module, and the control circuit module is connected with the computer.
The utility model discloses in, harmful gas concentration sensor is used for monitoring harmful gas concentration in the tunnel operation environment, and the information of monitoring passes through transmission system and conveys to the computer, and the computer is used for comparing the harmful gas data of monitoring with the setting value, and spray set accessible shower head sprays quicklime water to the operation environment. The automatic quick lime adding device can add quick lime to the water tank, and the mixer in the water tank is used for mixing the quick lime that adds to in the water tank and the water in the water tank. The control circuit module is used for controlling the on-off of each electrical device according to the instruction of the computer. The utility model discloses the theory of operation is: in the tunnel operation space, install harmful gas concentration sensor, detect harmful gas concentration through the sensor, the information transfer who detects reaches the computer of tunnel entrance to a cave, the computer can compare harmful gas concentration and permissible concentration limit value, when harmful gas concentration exceedes permissible concentration limit value, can send the instruction to control circuit module, open electronic control valve, the mixer motor, the motor of the automatic interpolation device of quick lime, the booster pump motor, and then open spray set, spout the poison reduction through the harmful gas of each shower head blowout quicklime water in to the environment, spun quicklime water can carry out neutralization reaction with harmful gas, can reduce harmful gas concentration fast, reach the purpose of toxicity reduction. In the spraying and toxicity-reducing process, the harmful gas concentration sensor continuously monitors the harmful gas concentration and transmits the harmful gas concentration to the computer, when the harmful gas concentration is reduced to a safe allowable limit value, the computer sends an instruction, the electronic regulating valve, the stirrer motor, the motor of the automatic quick lime adding device and the booster pump motor are closed through the control circuit, and the spraying device is closed.
Further, the water tank is arranged on the movable trolley for facilitating movement.
Furthermore, in order to guarantee omnibearing spraying and toxicity reduction on the operation environment, the spray head is of a rotatable structure.
Further, the automatic quicklime adding device comprises a slideway device, an elevator bucket transmission mechanism and a discharging hopper device, the slideway device comprises a slideway frame and two slideways obliquely arranged on the slideway frame, the lifting bucket is arranged between the two slideways, sliding wheels are arranged on both sides of the lifting bucket and are respectively arranged in the sliding ways in a sliding manner, the upper ends of the sliding ways are arc-shaped sliding ways, the lift bucket transmission mechanism comprises a driven chain wheel arranged at the upper part of the slide way frame, a driving chain wheel arranged at the lower part of the slide way frame, a chain connected between the driven chain wheel and the driving chain wheel, and a driving mechanism for driving the driving chain wheel to rotate, the elevator bucket is connected on the chain, the hopper device is established including corresponding the lower hopper of slide below, set up and be in the screw rod metering machine of mouth under the hopper, the discharge gate of screw rod metering machine with charge door on the water tank corresponds. The lift bucket can go up and down along the slide under lift bucket drive mechanism's chain drives, when the lift bucket removed slide upper portion along the slide, the arc slide through upper portion continued to remove, and the lift bucket takes place the upset under the effect of arc slide, and quick lime material in the lift bucket falls into in the feeder hopper of below, and quick lime in the feeder hopper falls into in the water tank after measuring through the screw rod metering machine.
The utility model has the advantages that: the utility model discloses a set up spray set and install harmful gas concentration sensor in tunnel operation environment in the tunnel operation district, through the harmful gas concentration in the sensor monitoring operation environment, through computer, control circuit module, control supply channel, mixer, the automatic device, the booster pump that adds of quick lime have realized spraying the intelligent management of toxicity reducing system, can realize that the toxicity is reduced fast to the large tracts of land in the limited space in tunnel, can improve the construction security greatly. The utility model discloses simple structure can realize that all-round spraying in the operation district falls the poison, and it is fast to fall the poison, falls the poison efficient, no dead angle, and easy operation.
Drawings
FIG. 1 is a schematic illustration of an installation in an embodiment of the present invention;
FIG. 2 is a schematic view of the installation of the sprinkler head in a tunnel section in an embodiment;
FIG. 3 is a control flow diagram of the present invention;
FIG. 4 is a schematic structural view of a water tank and an automatic quicklime adding device in the spray device of the present invention;
fig. 5 is a schematic front view of the slide device of the present invention;
FIG. 6 is a schematic right-side view of FIG. 5;
fig. 7 is a schematic diagram of the transmission of the slide device of the present invention;
fig. 8 is a schematic structural view of a blanking hopper device in the present invention;
in the figure, 1, tunnel preliminary bracing, 2, tunnel water supply pipeline, 3, electronic regulating valve, 4, water tank, 5, quicklime automatic adding device, 51, slideway device, 511, slideway, 5111, arc slideway, 512, slideway rack, 513, supporting frame, 514, fixing rod, 52, blanking hopper device, 521, blanking hopper, 522, screw rod metering machine, 523, screw rod metering machine motor, 53, lifting hopper, 531, sliding wheel, 54, driving sprocket, 55, driving sprocket shaft, 56, motor and speed reducer, 57, chain, 58, driven sprocket shaft, 59, driven sprocket, 60, driving sprocket, 6, booster pump, 7, pressure sensor, 8, water supply conduit, 9, anchor rod, 10, spray head, 11, mixer, 12, mixer motor, 13 and moving trolley.
Detailed Description
The invention will now be further described by way of non-limiting examples with reference to the accompanying drawings:
as shown in the attached drawing, the intelligent spraying and toxicity-reducing system for the harmful gas in the tunnel comprises a harmful gas concentration monitoring device, a computer, a control circuit module and a spraying device. The harmful gas concentration monitoring device comprises a plurality of harmful gas concentration sensors which are respectively installed at different positions of the tunnel operation area and used for monitoring the harmful gas concentration in the tunnel operation environment. Harmful gas type that harmful gas concentration sensor monitored as required sets up, for example hydrogen sulfide sensor, carbon dioxide sensor, carbon monoxide sensor, ammonia sensor, sulfur dioxide sensor, gas sensor etc. harmful gas concentration sensor is prior art, all can purchase on the market and obtain. For example: carbon monoxide sensor (3SP _ CO _1000), carbon dioxide sensor (SprintIR6s), sulfur dioxide sensor (3SP _ SO2_20), ammonia gas sensor (ME3-NH3) produced by Zheng Wei Sheng electronic technology Limited, gas sensor (KGJ16) produced by Shandong Zhongyao coal industry and mining group, and the like. The harmful gas concentration sensor is connected with the computer through a data transmission system and used for transmitting the monitored harmful gas data to the computer. The computer is arranged in a control room at the position of the tunnel portal, the computer is used for comparing the received harmful gas data with a set value and sending an instruction according to a comparison result, and a data comparison program arranged in the computer is the prior art. The spraying device comprises a spraying head 10, a water tank 4, an automatic quick lime adding device 5 and a booster pump 6, wherein the spraying head 10 is a plurality of and is respectively arranged at the arch crown, arch waist and side wall parts of the tunnel wall at a longitudinal distance of 2-3 m. The spray header 10 is arranged on the water supply conduit 8, and the water supply conduit 8 and the tunnel primary support 1 are fixed by the anchor rod 9. To ensure a full spray, the spray header 10 is preferably a rotatable structure. The water tank 4 is arranged on the movable trolley 13, the lower part of the water tank 4 is provided with a water inlet and a water outlet, and the upper part of the water tank 4 is provided with a charging hole. A stirrer 11 is arranged in the water tank 4, the stirrer 11 is driven by a stirrer motor 12, and the stirrer 11 is used for stirring and mixing materials in the water tank 4. And the upper part of the water tank 4 is provided with a quicklime automatic adding device 5 for adding quicklime into the water tank 4. The suction inlet of the booster pump 6 is connected with the water outlet of the water tank 4, the outlet of the booster pump 6 is connected with the water supply conduit 8, and the water supply conduit 8 is also provided with a pressure sensor 7. And a water inlet of the water tank 4 is connected with a water outlet of the tunnel water supply pipe 2, and an electronic regulating valve 3 is arranged at the water outlet of the tunnel water supply pipe 2 and used for controlling a water supply switch and the water quantity. The utility model provides an automatic device 5 that adds of quick lime can adopt the various automatic structures that add of material that can realize among the prior art, and quick lime in this embodiment adds device 5 automatically and adopts following structure: the automatic quicklime adding device comprises a slideway device 51, an elevator bucket 53, an elevator bucket transmission mechanism and a blanking hopper device 52. The slideway device 51 comprises a slideway frame 512 and two slideways 511 obliquely arranged on the slideway frame 512, the lifting hopper 53 is arranged between the two slideways 511, sliding wheels 531 are arranged on two sides of the lifting hopper 53, the sliding wheels 531 on two sides are respectively arranged in the two slideways 511 in a sliding manner, and the lifting hopper 53 can move along the slideways through the sliding wheels 531. The upper end of the slide 511 is an arc-shaped slide 5111 which is bent downwards. The lift bucket transmission mechanism comprises a driven sprocket 59 arranged at the upper part of the slide way frame 512, a driving sprocket 60 arranged at the lower part of the slide way frame 512, a chain 57 connected between the driven sprocket 59 and the driving sprocket 60, and a driving mechanism for driving the driving sprocket 60 to rotate. The driven sprocket 59 is rotatably provided on the driven sprocket shaft 58, and both ends of the driven sprocket shaft 58 are fixed to the slideways on both sides. The driving sprocket 60 is installed on the driving sprocket shaft 55, the driving sprocket 54 is also installed on the driving sprocket shaft 55, and both ends of the driving sprocket shaft 55 are rotatably connected to the slideways on both sides. The driving mechanism comprises a motor and speed reducer 56 and a chain wheel arranged on an output shaft of the speed reducer, wherein the chain wheel arranged on the output shaft of the speed reducer is connected with a driving chain wheel 54 arranged on a driving chain wheel shaft 55 through a chain. In order to ensure the reliability of the chain transmission, a support frame 513 is provided at the lower part corresponding to the chain 57, the support frame 513 is fixed by a fixing rod 514 provided at the lower part, and both ends of the fixing rod 514 are fixed on the slide ways at both sides. The lift buckets 53 are connected to the chain 57. The discharging hopper device 52 comprises a discharging hopper 521 correspondingly arranged below the slideway 511 and a screw metering machine 523 arranged at the lower opening of the discharging hopper 521, wherein the discharging opening of the screw metering machine 523 corresponds to the charging opening on the water tank 4. The screw metering machine 523 is a conventional art and can perform metering. When the automatic quick lime adding device 5 works, the lifting hopper 53 can move along the slide 511 under the driving of the chain 57 of the lifting hopper transmission mechanism, when the lifting hopper 53 moves to the upper part of the slide along the slide 511, the lifting hopper 53 continues to move through the arc-shaped slide 5111 on the upper part, the lifting hopper 53 overturns under the action of the arc-shaped slide 5111, quick lime materials in the lifting hopper 53 fall into the feed hopper 521 below, and quick lime in the feed hopper 521 falls into the water tank 4 after being metered by the screw metering machine 522. In order to prevent the elevator bucket from moving and overturning beyond the limit, a corresponding limit structure can be arranged to limit the elevator bucket. The electronic regulating valve 3, the stirrer motor 12, the motor of the automatic quicklime adding device and the motor of the booster pump are connected with the control circuit module, and the control circuit module is connected with the computer.
The utility model discloses a theory of operation is: a harmful gas concentration sensor arranged in a tunnel operation space monitors the concentration of harmful gas in the operation space, the concentration information of the harmful gas monitored by the sensor is transmitted into a computer, the computer compares the received harmful gas concentration data with a set allowable concentration limit value, when the concentration of the harmful gas exceeds the allowable concentration limit value, an instruction is sent to a control circuit module, an electronic regulating valve, a stirrer motor, a motor of an automatic quick lime adding device and a booster pump motor are opened, water is supplied into a water tank 4 by a tunnel water supply circuit, quick lime is added into the water tank 4 by the automatic quick lime adding device 5, the quick lime is uniformly stirred in the water tank 4 by a stirrer 11, and then the quick lime is sprayed into an operation surface environment through a water outlet of the water tank after being pressurized by the booster pump 6 and then through a water supply conduit 8 and a spray header 10 to reduce the toxic of, the sprayed quicklime water can perform neutralization reaction with harmful gas, and the concentration of the harmful gas can be quickly reduced, so that the aim of reducing toxicity is fulfilled. In the spraying and toxicity-reducing process, the harmful gas concentration sensor continuously monitors the harmful gas concentration and transmits the harmful gas concentration to the computer, when the harmful gas concentration is reduced to a safe allowable limit value, the computer sends an instruction, the electronic regulating valve, the stirrer motor, the motor of the automatic quick lime adding device and the booster pump motor are closed through the control circuit, and the spraying device is closed. Before spraying and toxicity reduction, a certain amount of water and quicklime should be stored in the water tank and quicklime automatic adding device, and continuous work after automatic start of the system is ensured.
Other parts in this embodiment are the prior art, and are not described herein again.
Claims (4)
1. The utility model provides a tunnel harmful gas intelligence sprays toxicity reduction system which characterized by: including harmful gas concentration monitoring devices, computer, control circuit module, spray set, harmful gas concentration monitoring devices includes a plurality of harmful gas concentration sensor who installs respectively in the different positions in tunnel operation district, the computer sets up in tunnel entrance to a cave position, harmful gas concentration sensor pass through data transmission system with the computer is connected, spray set includes that shower head (10), water tank (4), quick lime add device (5), booster pump (6) automatically, shower head (10) are a plurality of, set up respectively at the vault of tunnel cave wall, hunch waist, side wall position, shower head (10) are connected with water supply pipe (8), the sunction inlet of booster pump (6) with the delivery port of water tank (4) is connected, water supply pipe (8) with the delivery outlet of booster pump (6) is connected, be provided with mixer (11) in water tank (4), quick lime adds device (5) automatically and sets up water tank (4) upper portion, the water inlet of water tank (4) is connected with the delivery port of tunnel delivery pipe (2), is provided with electronic control valve (3) in the delivery port department of tunnel delivery pipe (2), electronic control valve (3), mixer motor, quick lime add the motor of device automatically, booster pump motor all with control circuit module connects, control circuit module with the computer is connected.
2. The intelligent tunnel harmful gas spraying and toxicity-reducing system according to claim 1, which is characterized in that: the water tank (4) is arranged on a movable trolley (13).
3. The intelligent spraying toxicity-reducing system for harmful gases in tunnels according to claim 1 or 2, which is characterized in that: the spray header (10) is a rotatable structure.
4. The intelligent spraying toxicity-reducing system for harmful gases in tunnels according to claim 1 or 2, which is characterized in that: the automatic quick lime adding device comprises a slide device (51), a lifting hopper (53), a lifting hopper transmission mechanism and a discharging hopper device (52), wherein the slide device (51) comprises a slide frame (512) and two slide ways (511) which are obliquely arranged on the slide frame (512), the lifting hopper (53) is arranged between the two slide ways (511), sliding wheels (531) are arranged on two sides of the lifting hopper (53) and are respectively arranged in the slide ways (511) in a sliding manner, the upper end of each slide way (511) is an arc-shaped slide way, the lifting hopper transmission mechanism comprises a driven sprocket (59) arranged on the upper portion of the slide frame (512), a driving sprocket (60) arranged on the lower portion of the slide frame (512), a chain connected between the driven sprocket (59) and the driving sprocket (60), and a driving mechanism for driving the driving sprocket (60) to rotate, and the lifting hopper (53) is connected onto the chain, the discharging hopper device (52) comprises a discharging hopper (521) correspondingly arranged below the slide way (511) and a screw metering machine (523) arranged at the lower opening of the discharging hopper (521), and the discharging opening of the screw metering machine (523) corresponds to the charging opening on the water tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951358.7U CN211435698U (en) | 2019-11-13 | 2019-11-13 | Tunnel harmful gas intelligence sprays toxicity reduction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951358.7U CN211435698U (en) | 2019-11-13 | 2019-11-13 | Tunnel harmful gas intelligence sprays toxicity reduction system |
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| Publication Number | Publication Date |
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| CN211435698U true CN211435698U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921951358.7U Expired - Fee Related CN211435698U (en) | 2019-11-13 | 2019-11-13 | Tunnel harmful gas intelligence sprays toxicity reduction system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893962A (en) * | 2021-08-27 | 2022-01-07 | 西南石油大学 | Tunnel harmful gas real-time alarm automatic atomization spraying treatment equipment and spraying method thereof |
-
2019
- 2019-11-13 CN CN201921951358.7U patent/CN211435698U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893962A (en) * | 2021-08-27 | 2022-01-07 | 西南石油大学 | Tunnel harmful gas real-time alarm automatic atomization spraying treatment equipment and spraying method thereof |
| CN113893962B (en) * | 2021-08-27 | 2022-10-18 | 西南石油大学 | Tunnel harmful gas real-time alarm automatic atomization spraying treatment equipment and spraying method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 Termination date: 20211113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |