CN112078995A - Emergency leakage stopping device for hazardous chemical tank truck and working method thereof - Google Patents
Emergency leakage stopping device for hazardous chemical tank truck and working method thereof Download PDFInfo
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- CN112078995A CN112078995A CN202010969908.9A CN202010969908A CN112078995A CN 112078995 A CN112078995 A CN 112078995A CN 202010969908 A CN202010969908 A CN 202010969908A CN 112078995 A CN112078995 A CN 112078995A
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- 239000000383 hazardous chemical Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims abstract description 74
- 239000000126 substance Substances 0.000 claims abstract description 32
- 239000000696 magnetic material Substances 0.000 claims abstract description 17
- 239000011261 inert gas Substances 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims description 52
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
- B65D90/50—Arrangements of indicating or measuring devices of leakage-indicating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Examining Or Testing Airtightness (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an emergency plugging device for a hazardous chemical tank truck and a working method thereof, wherein the emergency plugging device comprises an air bag plugging system, an air curtain generating system and an intelligent monitoring system; the intelligent monitoring system can monitor whether the leakage of the hazardous chemical substances occurs on the surface of the tank body in real time, if so, the gas curtain generation system sprays inert gas on the outer surface of the tank body with the leakage through the gas curtain gas guide tube, so that a gas flow curtain is formed at the position, the leakage speed of the hazardous chemical substances can be effectively slowed down, and the leaked hazardous chemical substances are diluted to reduce the influence on the surrounding environment; meanwhile, the air bag plugging system enables the air bags to be rapidly filled, and the air bags in the two circular tube type supports rapidly extend in opposite directions along the outer surface of the tank body due to the mutual attraction of the magnetic materials at the end parts of the two opposite air bags until the two opposite air bags are mutually contacted and the magnetic materials of the two air bags attract each other, at the moment, the two air bags wrap the outer surface of the tank body between the support groups, so that the leakage points are pressurized to seal and plug the leakage, and dangerous chemicals are prevented from being continuously leaked.
Description
Technical Field
The invention relates to a leakage stopping device and a working method thereof, in particular to an emergency leakage stopping device for a hazardous chemical tank car and a working method thereof.
Background
The chemical industry occupies an important position in national economy in China. However, the transportation of hazardous chemicals is always in a special transportation industry. Compared with transportation modes such as railways, water ways, aviation, pipelines and the like, the road transportation mode not only has the advantages of economy, rapidness, flexibility and the like, but also has high transportation efficiency, so that the road transportation becomes the most main transportation mode in transportation of dangerous chemicals. However, dangerous chemicals are greatly influenced by uncertain factors in the road transportation process and are unstable in chemical properties, so that accidents such as leakage, corrosion, fire, explosion and the like are easy to happen. In recent years, dangerous chemical leakage accidents often occur, toxic gas and inflammable gas leakage is easy to diffuse in a short time to cause poisoning accidents of personnel, and once the dangerous chemical leakage is contacted with a fire source, more serious explosion accidents can occur, so that the life health of surrounding personnel is threatened; for the liquid leakage of hazardous chemicals, the flowing diffusivity is strong, and if the control or treatment is not proper, accidents such as fire explosion and the like are caused by the fact that fire sources are encountered in unexpected places; for solid leakage of hazardous chemicals, static electricity is easily generated under the impact of vibration and tank wall, so that explosion is caused. Therefore, it is very important to realize rapid and effective emergency plugging treatment by using safety measures and technical means in the road transportation process of hazardous chemicals.
At present, some technical means and special devices exist in the aspect of plugging dangerous chemical tank trucks. For example, chinese patent publication No. CN203294607U provides a manual leak stopper including a leak stopping retaining screw, a leak stopping cover, and a pressing hand wheel. Due to the special properties of hazardous chemicals, the life safety of operating personnel is easily endangered, but the device is manually operated, is not intelligently sensed to block leakage, and is low in leakage blocking speed. In addition, the plugging device has poor adaptability, can only solve a small-range leakage port, and cannot perform integral plugging on the surface of the tank body. In addition, chinese patent No. CN209943502U, which is a glue injection type plugging device, achieves the effect of extruding and plugging the leaking part by setting a fixing tube to supply glue. However, the device is usually suitable for flange leakage, and cannot perform leakage stoppage operation on the vehicle tank body, and dangerous chemicals are often caused by the leakage accidents caused by the collision, puncture or corrosion of the tank body in the transportation process. In addition, the glue injection material cannot be supplied in time, and the chemical property of the glue injection material may react with hazardous chemicals, so that a more serious secondary accident is caused. And this kind of leaking stoppage mode is disposable leaking stoppage, when restoreing the jar body leak opening later stage, needs earlier to clear away the slip casting of injecting glue position, then dismantles the restoration to lead to the work flow complicated.
The leakage stopping mode is only suitable for leakage in a small range, and in addition, the leakage stopping mode needs to be operated manually, so that the defects that the leakage stopping effect is slow, the repair work of a leakage opening in the later period is complex and the like exist. In order to ensure the driving safety of the dangerous chemical tank car in the transportation process and reduce and avoid the harm and loss caused by leakage accidents as much as possible, the emergency plugging device which is safe and reliable and can quickly and effectively solve the leakage of the dangerous chemical in the transportation process is an urgent problem to be solved at present.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an emergency plugging device for a hazardous chemical tank car and a working method thereof, which can monitor whether leakage occurs in the process of transporting hazardous chemicals by a tank body, and if leakage occurs, the leakage speed of the hazardous chemicals can be slowed down automatically by forming an air curtain, and meanwhile, the leakage point is plugged by an air bag, so that the continuous leakage of the hazardous chemicals is effectively prevented, and the personal safety of personnel around the tank body is ensured.
In order to achieve the purpose, the invention adopts the technical scheme that: an emergency plugging device for a hazardous chemical tank car comprises an air bag plugging system, an air curtain generating system and an intelligent monitoring system;
the air bag plugging system comprises a plurality of support groups and two air supply pipes, the two air supply pipes are symmetrically arranged on two sides of the lower part of the tank body along the axial direction of the tank body, the plurality of support groups are arranged on the outer surface of the tank body side by side, each support group consists of two circular tube type supports, air bag extending openings are formed in one sides of the two circular tube type supports, the two circular tube type supports are arranged on the outer surface of the tank body in a surrounding mode at intervals, and the air bag extending openings of the two circular tube type supports are arranged oppositely; the air bag assembly comprises an air bag support frame, an air bag fixing bolt, an air bag and an air bag connecting pipe, the air bag support frame is fixed inside the circular tube-shaped support, one end, far away from an air bag extending opening, of the air bag is fixedly connected with the air bag support frame through the air bag fixing bolt, and one end, close to the air bag extending opening, of the air bag is provided with a plurality of magnetic materials; the air bag is in an uninflated state, one end of the air bag connecting pipe is communicated with the air bag, and the other end of the air bag connecting pipe extends out of the circular tube-shaped support;
the air curtain generating system comprises a plurality of air curtain air guide pipes, the number of the air curtain air guide pipes is the same as that of the circular tube type supports, each air curtain air guide pipe is arranged on the outer surface of the tank body in a surrounding mode, and each two air curtain air guide pipes are located between the two circular tube type supports in the same support group; two ends of each air curtain air duct are respectively communicated with two air supply pipes; one side of each air curtain air duct is provided with a plurality of air outlet holes, the air outlet holes of the two air curtain air ducts in the same bracket group are arranged oppositely, and the other side of each air curtain air duct is communicated with the other end of each air bag connecting pipe closest to the round tube type bracket;
the intelligent monitoring system comprises a control device, a plurality of monitoring probe groups and a plurality of electric control valves, wherein each electric control valve is respectively arranged at the joint of each air curtain air duct and the air supply pipe; each monitoring probe group is respectively arranged on the outer surface of one of the circular tube type supports in one support group, each monitoring probe group consists of a plurality of monitoring probes, and the plurality of monitoring probes are uniformly distributed on the outer surface of the circular tube type support; the control device is respectively connected with the monitoring probe groups and the electric control valves and is used for receiving monitoring data fed back by the monitoring probe groups and controlling the opening of the corresponding electric control valves after analysis and processing.
Further, the circular tube type support, the air supply pipe and the air curtain air guide pipe are all made of aluminum alloy materials.
Further, the air bag is made of rubber.
Further, the monitoring probe is a gas sensor.
Further, the control device is a single chip microcomputer.
A working method of an emergency plugging device of a hazardous chemical tank car comprises the following specific steps:
A. arranging the emergency plugging device on a tank car, and checking whether the air tightness of the device is qualified;
B. numbering each monitoring probe group in sequence through a control device, and marking the monitoring probe groups corresponding to four electric control valves in the same bracket group respectively, so as to establish the corresponding relation between each monitoring probe group and each electric control valve; meanwhile, setting a threshold value to be stored in the control device;
C. in the normal transportation process of the tank truck, each monitoring probe group monitors the concentration value of the hazardous chemical substances on the outer surface of the tank body in real time, the monitoring data are fed back to the control device, the control device compares the monitoring data with the stored data, and if the concentration value of the hazardous chemical substances of each monitoring probe does not exceed a set threshold value, the control device judges that the tank body of the tank truck is in a normal state and continues monitoring; if the concentration value of the hazardous chemical substance of any one monitoring probe exceeds a set threshold value, the control device judges that the tank body of the tank car is in a leakage state, and the step D is carried out;
D. the control device firstly determines a monitoring probe group where the monitoring probe is located, and then four electric control valves of the same bracket group corresponding to the monitoring probe group are obtained; the control device sends out a control instruction to open the four electric control valves, inert gas enters the two air curtain air guide tubes in the bracket group from the air supply tube and is further sprayed out from the air outlet holes of the two air curtain air guide tubes, and the air outlet holes of the two air curtain air guide tubes are arranged oppositely, so that an air flow curtain is formed on the outer surface of the tank body between the bracket groups, leakage points are preliminarily blocked, the leakage speed of hazardous chemicals is reduced, and the concentration of the leaked hazardous chemicals is diluted; meanwhile, inert gas enters the air bags of the two circular tube type supports in the same support group through the air bag connecting pipes, so that the two air bags are inflated, at the moment, the two air bags start to expand, one ends with magnetic materials extend out of the air bag extending openings, the air bags in the two circular tube type supports in the same support group are oppositely arranged, and the magnetic materials at the end parts of the two opposite air bags are mutually attracted, so that the air bags in the two circular tube type supports rapidly extend oppositely along the outer surface of the tank body until the two opposite air bags are mutually contacted and the magnetic materials of the two air bags are mutually attracted, and at the moment, the two air bags wrap the outer surface of the tank body between the support groups, so that pressure is applied to a leakage point to seal and stop leakage of dangerous chemicals continuously;
E. after the internal danger article of jar were discharged by safety, when needing to mend the leakage point of the jar body, adopt the aspiration pump intercommunication air supply pipe earlier, through the air supply pipe, the inert gas of air curtain air duct and gasbag connecting pipe in to the gasbag bleeds, until take the back out completely, two gasbags that will each other the actuation separate the back and stretch out mouthful folding shrink inside two circular tube type supports from the gasbag of two circular tube type supports respectively, thereby accomplish the gasbag and retrieve reset work, can repair the leakage point this moment.
Compared with the prior art, the invention adopts a mode of combining the air bag plugging system, the air curtain generating system and the intelligent monitoring system, and has the following advantages:
1. according to the invention, whether the leakage of the hazardous chemical substances occurs on the surface of the tank body can be monitored in real time through the intelligent monitoring system, if the generation control device can automatically perform plugging, inert gas is sprayed out of the outer surface of the tank body where the leakage occurs through the gas curtain gas guide tube, so that a gas curtain is formed at the position, the leakage speed of the hazardous chemical substances can be effectively slowed down, and the leaked hazardous chemical substances can be diluted to reduce the influence of the leaked hazardous chemical substances on the surrounding environment; meanwhile, the air bags are quickly inflated, and because the magnetic materials at the end parts of the two opposite air bags attract each other, the air bags in the two circular tube type supports rapidly extend oppositely along the outer surface of the tank body until the two opposite air bags are in contact with each other and the magnetic materials of the two air bags attract each other, at the moment, the two air bags wrap the outer surface of the tank body between the support groups, so that pressure is applied to a leakage point to seal and stop leakage, and dangerous chemicals are prevented from being continuously leaked; thereby realizing the emergency leakage stopping effect on the tank body;
2. because the air bags are rubber air bags with certain elasticity, when dangerous chemicals in the tank body are safely discharged and leakage points of the tank body need to be repaired, the two air bags can be recovered and reset by discharging inert gas in the air bags and folding and contracting the inert gas, so that the next use is facilitated; therefore, the invention has the advantages of simple operation, convenient reset and repeated use, and in addition, the safety of the recovery reset process is higher, and the invention has wide applicability.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic radial cross-section of the present invention;
FIG. 3 is a schematic cross-sectional view of a balloon of two circular tube-shaped stents of the present invention when the balloon is not expanded;
FIG. 4 is a schematic view of the present invention after leak plugging;
FIG. 5 is a schematic cross-sectional view of two circular tube-shaped stents of the present invention after balloon expansion;
fig. 6 is a schematic plan view showing the structure of the air curtain in the present invention.
In the figure: 1. the air-bag monitoring device comprises a tank body, 2, a circular tube type support, 3, an air supply pipe, 4, an air curtain air guide pipe, 5, an air bag extension opening, 6, an air outlet hole, 7, an air bag support frame, 8, an air bag fixing bolt, 9, an air bag, 10, a magnetic material, 11, an electric control valve, 12, a monitoring probe, 13 and an air bag connecting pipe.
Detailed Description
The present invention will be further explained below.
As shown in fig. 1 to 5, an emergency plugging device for a hazardous chemical tank car comprises an air bag plugging system, an air curtain generation system and an intelligent monitoring system;
the air bag plugging system comprises a plurality of support groups and two air supply pipes 3, wherein the two air supply pipes 3 are symmetrically arranged at two sides of the lower part of the tank body 1 along the axial direction of the tank body 1, the plurality of support groups are arranged on the outer surface of the tank body 1 side by side, each support group consists of two circular tube type supports 2, one sides of the two circular tube type supports 2 are respectively provided with an air bag extending port 5, the two circular tube type supports 2 are arranged on the outer surface of the tank body 1 in a surrounding mode at a certain interval, and the air bag extending ports 5 of the two circular tube type supports 2 are arranged; an air bag assembly is arranged inside each circular tube type support 2 and comprises an air bag support frame 7, an air bag fixing bolt 8, an air bag 9 and an air bag connecting pipe 13, the air bag support frame 7 is fixed inside the circular tube type support 2, one end, far away from an air bag extending opening 5, of the air bag 9 is fixedly connected with the air bag support frame 7 through the air bag fixing bolt 8, and one end, close to the air bag extending opening 5, of the air bag 9 is provided with a plurality of magnetic materials 10; the air bag 9 is in an uninflated state, one end of the air bag connecting pipe 13 is communicated with the air bag 9, and the other end of the air bag connecting pipe extends out of the circular tube type support 2;
the air curtain generating system comprises a plurality of air curtain air guide pipes 4, the number of the air curtain air guide pipes 4 is the same as that of the circular tube type supports 2, each air curtain air guide pipe 4 is arranged on the outer surface of the tank body 1 in a surrounding mode, and each two air curtain air guide pipes 4 are located between the two circular tube type supports 2 in the same support group; two ends of each air curtain air duct 4 are respectively communicated with two air supply pipes 3; one side of each air curtain air duct 4 is provided with a plurality of air outlet holes 6, the air outlet holes 6 of the two air curtain air ducts 4 in the same bracket group are oppositely arranged, and the other side of each air curtain air duct 4 is respectively communicated with the other end of each air bag connecting pipe 13 closest to the round pipe type bracket 2;
the intelligent monitoring system comprises a control device, a plurality of monitoring probe groups and a plurality of electric control valves 11, wherein each electric control valve 11 is respectively arranged at the joint of each air curtain air duct 4 and the air supply pipe 3; each monitoring probe group is respectively arranged on the outer surface of one of the circular tube type supports 2 in one support group, each monitoring probe group is composed of a plurality of monitoring probes 12, and the plurality of monitoring probes 12 are uniformly distributed on the outer surface of the circular tube type support 2; the control device is respectively connected with the plurality of monitoring probe groups and the plurality of electric control valves 11 and is used for receiving monitoring data fed back by the monitoring probe groups and controlling the opening of the corresponding electric control valves 11 after analysis and processing.
Further, the circular tube type support 2, the air supply pipe 3 and the air curtain air guide pipe 4 are all made of aluminum alloy materials.
Further, the air bag 9 is made of rubber.
Further, the monitoring probe 12 is a gas sensor.
Further, the control device is a single chip microcomputer.
A working method of an emergency plugging device of a hazardous chemical tank car comprises the following specific steps:
A. arranging the emergency plugging device on a tank car, and checking whether the air tightness of the device is qualified;
B. numbering each monitoring probe group in sequence through a control device, and marking each monitoring probe group corresponding to four electric control valves 11 in the same bracket group respectively, so as to establish the corresponding relation between each monitoring probe group and each electric control valve 11; meanwhile, setting a threshold value to be stored in the control device;
C. in the normal transportation process of the tank car, each monitoring probe group monitors the concentration value of the hazardous chemical substances on the outer surface of the tank body 1 in real time, and feeds monitoring data back to the control device, the control device compares the monitoring data with stored data, and if the concentration value of the hazardous chemical substances of each monitoring probe 12 does not exceed a set threshold value, the control device judges that the tank body 1 of the tank car is in a normal state and continues monitoring; if the concentration value of the hazardous chemical substances of any one monitoring probe 12 exceeds a set threshold value, the control device judges that the tank body 1 of the tank car is in a leakage state, and the step D is carried out;
D. the control device firstly determines a monitoring probe group where the monitoring probe 12 is located, and then four electric control valves 11 of the same bracket group corresponding to the monitoring probe group are obtained; the control device sends out a control instruction to open the four electric control valves 11, inert gas (such as nitrogen) enters the two air curtain air guide tubes 4 in the bracket group from the air supply pipe 3 and is further sprayed out from the air outlet holes 6 of the two air curtain air guide tubes 4, and the air outlet holes 6 of the two air curtain air guide tubes 4 are oppositely arranged, so that an air flow curtain is formed on the outer surface of the tank body 1 between the bracket groups, leakage points are preliminarily blocked, the leakage speed of hazardous chemicals is reduced, and the concentration of the leaked hazardous chemicals is diluted; meanwhile, inert gas enters the air bags 9 of the two circular tube type supports 2 in the same support group through the air bag connecting pipes 13 by the two air curtain air guide pipes 4, and then the two air bags 9 are inflated, at the moment, the two air bags 9 begin to expand, and one ends with magnetic materials 10 extend out of the air bag extending openings 5, because the air bag extending openings 5 of the two circular tube type supports 2 in the same support group are oppositely arranged, and because the magnetic materials 10 at the end parts of the two opposite air bags are mutually attracted, the air bags 9 in the two circular tube type supports 2 rapidly extend in opposite directions along the outer surface of the tank body 1 until the two opposite air bags 9 are mutually contacted and the magnetic materials 10 of the two air bags are mutually attracted, at the moment, the two air bags 9 wrap the outer surface of the tank body 1 between the support groups, so that pressure is applied to seal leakage stoppage to leakage points;
E. after the danger article in the jar body 1 is discharged safely, when needing to mend the leakage point of the jar body 1, adopt the aspiration pump intercommunication air supply pipe 3 earlier, through air supply pipe 3, air curtain air duct 4 and gasbag connecting pipe 13 bleed the inert gas in the gasbag 9, after taking out completely, after separating two gasbags 9 with each other actuation respectively from the gasbag that two tubular type supports 2 stretch out mouthful 5 folding contractions inside two tubular type supports 2, thereby accomplish gasbag 9 and retrieve reset work, can mend the leakage point this moment.
Claims (6)
1. An emergency plugging device for a hazardous chemical tank car is characterized by comprising an air bag plugging system, an air curtain generating system and an intelligent monitoring system;
the air bag plugging system comprises a plurality of support groups and two air supply pipes, the two air supply pipes are symmetrically arranged on two sides of the lower part of the tank body along the axial direction of the tank body, the plurality of support groups are arranged on the outer surface of the tank body side by side, each support group consists of two circular tube type supports, air bag extending openings are formed in one sides of the two circular tube type supports, the two circular tube type supports are arranged on the outer surface of the tank body in a surrounding mode at intervals, and the air bag extending openings of the two circular tube type supports are arranged oppositely; the air bag assembly comprises an air bag support frame, an air bag fixing bolt, an air bag and an air bag connecting pipe, the air bag support frame is fixed inside the circular tube-shaped support, one end, far away from an air bag extending opening, of the air bag is fixedly connected with the air bag support frame through the air bag fixing bolt, and one end, close to the air bag extending opening, of the air bag is provided with a plurality of magnetic materials; the air bag is in an uninflated state, one end of the air bag connecting pipe is communicated with the air bag, and the other end of the air bag connecting pipe extends out of the circular tube-shaped support;
the air curtain generating system comprises a plurality of air curtain air guide pipes, the number of the air curtain air guide pipes is the same as that of the circular tube type supports, each air curtain air guide pipe is arranged on the outer surface of the tank body in a surrounding mode, and each two air curtain air guide pipes are located between the two circular tube type supports in the same support group; two ends of each air curtain air duct are respectively communicated with two air supply pipes; one side of each air curtain air duct is provided with a plurality of air outlet holes, the air outlet holes of the two air curtain air ducts in the same bracket group are arranged oppositely, and the other side of each air curtain air duct is communicated with the other end of each air bag connecting pipe closest to the round tube type bracket;
the intelligent monitoring system comprises a control device, a plurality of monitoring probe groups and a plurality of electric control valves, wherein each electric control valve is respectively arranged at the joint of each air curtain air duct and the air supply pipe; each monitoring probe group is respectively arranged on the outer surface of one of the circular tube type supports in one support group, each monitoring probe group consists of a plurality of monitoring probes, and the plurality of monitoring probes are uniformly distributed on the outer surface of the circular tube type support; the control device is respectively connected with the monitoring probe groups and the electric control valves and is used for receiving monitoring data fed back by the monitoring probe groups and controlling the opening of the corresponding electric control valves after analysis and processing.
2. The emergency plugging device for the hazardous chemical tank car according to claim 1, wherein the circular tube type support, the air supply pipe and the air curtain air duct are made of aluminum alloy.
3. The emergency plugging device for the hazardous chemical tank car according to claim 1, wherein the air bag is made of rubber.
4. The emergency plugging device for the hazardous chemical tank car according to claim 1, wherein the monitoring probe is a gas sensor.
5. The emergency plugging device for the hazardous chemical tank car according to claim 1, wherein the control device is a single chip microcomputer.
6. The working method of the emergency plugging device for the hazardous chemical tank car according to claim 1 is characterized by comprising the following specific steps:
A. arranging the emergency plugging device on a tank car, and checking whether the air tightness of the device is qualified;
B. numbering each monitoring probe group in sequence through a control device, and marking the monitoring probe groups corresponding to four electric control valves in the same bracket group respectively, so as to establish the corresponding relation between each monitoring probe group and each electric control valve; meanwhile, setting a threshold value to be stored in the control device;
C. in the normal transportation process of the tank truck, each monitoring probe group monitors the concentration value of the hazardous chemical substances on the outer surface of the tank body in real time, the monitoring data are fed back to the control device, the control device compares the monitoring data with the stored data, and if the concentration value of the hazardous chemical substances of each monitoring probe does not exceed a set threshold value, the control device judges that the tank body of the tank truck is in a normal state and continues monitoring; if the concentration value of the hazardous chemical substance of any one monitoring probe exceeds a set threshold value, the control device judges that the tank body of the tank car is in a leakage state, and the step D is carried out;
D. the control device firstly determines a monitoring probe group where the monitoring probe is located, and then four electric control valves of the same bracket group corresponding to the monitoring probe group are obtained; the control device sends out a control instruction to open the four electric control valves, inert gas enters the two air curtain air guide tubes in the bracket group from the air supply tube and is further sprayed out from the air outlet holes of the two air curtain air guide tubes, and the air outlet holes of the two air curtain air guide tubes are arranged oppositely, so that an air flow curtain is formed on the outer surface of the tank body between the bracket groups, leakage points are preliminarily blocked, the leakage speed of hazardous chemicals is reduced, and the concentration of the leaked hazardous chemicals is diluted; meanwhile, inert gas enters the air bags of the two circular tube type supports in the same support group through the air bag connecting pipes, so that the two air bags are inflated, at the moment, the two air bags start to expand, one ends with magnetic materials extend out of the air bag extending openings, the air bags in the two circular tube type supports in the same support group are oppositely arranged, and the magnetic materials at the end parts of the two opposite air bags are mutually attracted, so that the air bags in the two circular tube type supports rapidly extend oppositely along the outer surface of the tank body until the two opposite air bags are mutually contacted and the magnetic materials of the two air bags are mutually attracted, and at the moment, the two air bags wrap the outer surface of the tank body between the support groups, so that pressure is applied to a leakage point to seal and stop leakage of dangerous chemicals continuously;
E. after the internal danger article of jar were discharged by safety, when needing to mend the leakage point of the jar body, adopt the aspiration pump intercommunication air supply pipe earlier, through the air supply pipe, the inert gas of air curtain air duct and gasbag connecting pipe in to the gasbag bleeds, until take the back out completely, two gasbags that will each other the actuation separate the back and stretch out mouthful folding shrink inside two circular tube type supports from the gasbag of two circular tube type supports respectively, thereby accomplish the gasbag and retrieve reset work, can repair the leakage point this moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969908.9A CN112078995B (en) | 2020-09-15 | 2020-09-15 | Emergency plugging device of dangerous chemical tank truck and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969908.9A CN112078995B (en) | 2020-09-15 | 2020-09-15 | Emergency plugging device of dangerous chemical tank truck and working method thereof |
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| CN112078995A true CN112078995A (en) | 2020-12-15 |
| CN112078995B CN112078995B (en) | 2024-04-05 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN212291344U (en) * | 2020-09-15 | 2021-01-05 | 湖南科技大学 | Emergency leakage blocking device for hazardous chemical tank truck |
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| DE3938742A1 (en) * | 1989-11-23 | 1991-05-29 | Gok Gmbh & Co Kg | Redundant overfilling protection appts. for dangerous liquids=gases - contains mutually independent electrical control chains, gives manual alarm and performs automatic cut-off probe faults |
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| CN112078995B (en) | 2024-04-05 |
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