CN212173296U - Safety protection device of tank car body - Google Patents

Abstract

The utility model discloses a safety protection device of a tank body of a tank wagon, which comprises an emergency cut-off valve, a snapping valve and a travel switch; the emergency cut-off valve comprises a valve body and an execution mechanism, the break-off valve comprises a first break-off valve body and a second break-off valve body, and the emergency cut-off valve and the first break-off valve body are integrally formed; the first breaking valve body is connected with the second breaking valve body through a flange and is fixed through a breakable bolt; a flange of the first snapping valve body is provided with a first through hole close to the bolt hole, a contact end of the travel switch penetrates through the first through hole and abuts against a flange surface of the second snapping valve body, one side of the travel switch is provided with a convex edge, the convex edge is provided with a second through hole, and the easy-to-break bolt penetrates through the second through hole and the bolt hole to fix the travel switch; the travel switch is electrically connected with the actuating mechanism. When the connecting pipeline of the loading and unloading vehicle is collided, the tank body of the tank wagon is protected from being deformed or torn under the influence of external force, and when the pipeline leakage accident happens, the valve is cut off in time, so that the major safety accident is avoided.

Description

Safety protection device of tank car body

Technical Field

The utility model belongs to the technical field of safety arrangement and specifically relates to a safety arrangement of tank wagon jar body.

Background

In the transportation of dangerization article road, in order to reduce the cost of transportation and satisfy national standard, the material of tank wagon jar body adopts aluminium system storage tank more, nevertheless in order to guarantee its intensity, the connecting line of storage tank and loading and unloading car interface still adopts the steel. The loading and unloading interfaces are positioned at the two sides of the middle part or the rear part of the tank wagon, so that collision is very easy to occur at the positions during transportation, once collision occurs, external force is transmitted to the connecting position of the tank body and the connecting pipeline through the connecting pipeline, and the tank is very easy to deform or even tear at the positions, so that the storage tank is easy to leak; and the safety accidents such as the falling of the oil filling riser and the like are easily caused in the process of loading and unloading the vehicle, so that ignition and explosion are caused, and serious safety accidents such as casualties, environmental pollution and the like are caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses add the safety arrangement who establishes a tank wagon jar body on tank wagon storage tank loading and unloading car connecting line, the safe effectual disconnection of safety arrangement after loading and unloading car connecting line receives certain external force, and the protection tank wagon jar body does not receive external force to influence to take place to warp or tear to when the pipeline leakage accident takes place at the loading and unloading car in-process, can in time cut off the valve, avoid the emergence of major incident.

The utility model adopts the technical proposal that:

a safety protection device for a tank body of a tank car comprises an emergency cut-off valve, a breaking valve and a travel switch; the emergency cut-off valve comprises a valve body and an execution mechanism, the break-off valve comprises a first break-off valve body and a second break-off valve body, and the emergency cut-off valve and the first break-off valve body are integrally formed; the first breaking valve body is connected with the second breaking valve body through a flange and is fixed through a breakable bolt; a first through hole is formed in a position, close to a bolt hole, of a flange of the first snap valve body, a contact end of the travel switch penetrates through the first through hole and abuts against a flange face of the second snap valve body, a convex edge is arranged on one side of the travel switch, a second through hole is formed in the convex edge, the second through hole is aligned with the bolt hole, and the travel switch is fixed by a breakable bolt penetrating through the second through hole and the bolt hole; the travel switch is electrically connected with the actuating mechanism.

The emergency cut-off valve is fixedly connected with the tank car outlet flange, the directions of the emergency cut-off valve and the break valve are vertical to the ground, when a loading and unloading car interface is collided, the break bolt is broken when external force is transmitted to the break valve, the second break valve body is rapidly separated from the first break valve body, collision force is prevented from being transmitted to the interface of a loading and unloading car pipeline and a tank body, and deformation and even tearing caused by collision are avoided; once the second snapping valve body is separated from the first snapping valve body, the sealing device in the second snapping valve body is triggered to instantly automatically seal, so that the leakage of a medium in the tank body is prevented; by arranging the travel switch, when the first snap valve body is separated from the second snap valve body or the breakable bolt penetrating through the second through hole is broken, the contact of the travel switch is triggered, the travel switch sends a signal to the executing mechanism, and the executing mechanism acts to close the emergency cut-off valve, so that the leakage of a medium is prevented; the emergency cut-off valve can also be in communication connection with a vehicle-mounted remote control switch and a PLC system, when medium leakage occurs and the leakage amount is too large in the loading and unloading process, personnel cannot approach the vehicle, the emergency cut-off valve cannot be closed through the emergency cut-off valve switch on the tank car, and the emergency cut-off valve can be remotely controlled to be closed through the vehicle-mounted remote control switch or the PLC system of a control room, so that further leakage of the medium is avoided.

Preferably, the lower end of the second snapping valve body is fixedly connected with an elbow flange, and the second snapping valve further comprises a loading and unloading vehicle quick connector which is fixedly connected with the elbow flange; preferably, the tank car further comprises a chain, wherein one end of the chain is connected with the elbow flange, and the other end of the chain is connected with the tank car body. After the second snapping valve body is separated from the first snapping valve body, the elbow flange connected with the first snapping valve body and the quick connector of the loading and unloading vehicle are prevented from falling on the ground due to the connection of the chain, the medium which is leaked due to the ignition of sparks generated by the collision of the first snapping valve body and the ground is avoided, and the safety of the tank wagon in the transportation process is further ensured.

Preferably, the first snap-off valve body and the second snap-off valve body are both of a hemispherical structure. Compared with the existing breaking valve structure, the spherical breaking valve is formed by connecting the first breaking valve body and the second breaking valve body through flanges, the internal flow area of the spherical breaking valve is increased, the limitation of an internal structure on the flow is reduced, and the flow requirement of a pipeline is met.

Preferably, the elbow angle of the elbow flange is 90 °.

Preferably, the actuator is a solenoid valve.

The utility model provides a safety protection device for a tank body of a tank wagon, which can be timely disconnected when a connecting pipeline of a loading and unloading vehicle is collided by arranging a breaking valve, so as to protect the tank body of the tank wagon from deformation or tearing due to the influence of external force; by arranging the travel switch, when the breaking valve or the breakable bolt is broken, the travel switch is triggered to send a signal to the emergency cut-off valve to close the emergency cut-off valve, so that the leakage of a medium is further prevented; when a pipeline leakage accident occurs in the loading and unloading process, the valve can be cut off in time through a vehicle-mounted remote control switch or a PLC system of a control room, so that major safety accidents are avoided; the emergency cut-off valve and the first snap valve body are integrally formed, so that potential safety hazards caused by excessive flange connection quantity of safety protection devices are avoided; the anti-falling chain effectively prevents the broken part from colliding with the ground to generate spark to ignite leaked media, and further ensures the safety of the tank car in the transportation process.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the three-dimensional disassembled structure of the present invention;

fig. 3 is a schematic view of the installation position of the travel switch of the present invention;

fig. 4 is a schematic structural diagram of the travel switch.

Reference numerals: 1. an emergency shut-off valve; 11. a valve body; 12. an actuator; 2. breaking the valve; 21. a first snap-off valve body; 211. Bolt holes; 212. a first through hole; 22. a second snap-off valve body; 3. a travel switch; 31. a travel switch contact end; 32. a convex edge; 33. a second through hole; 4. a bolt is easy to break; 5. an elbow flange; 6. a loading and unloading vehicle quick interface; 7. a chain; 8. a third through hole; 9. tank car tank outlet flange.

Detailed Description

In order to enable those skilled in the art to better understand the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings.

A safety protection device for a tank body of a tank car comprises an emergency cut-off valve 1, a snapping valve 2, a travel switch 3 and a chain 7; the emergency cut-off valve 1 comprises a valve body 11 and an executing mechanism 12, the executing mechanism 12 is an electromagnetic valve, the break valve 2 comprises a first break valve body 21 and a second break valve body 22, the first break valve body 21 and the second break valve body 22 are both of hemispherical structures, and the emergency cut-off valve 1 and the first break valve body 21 are integrally formed; the first snapping valve body 21 is connected with the second snapping valve body 22 through a flange and is fixed through a breakable bolt 4; a first through hole 212 is formed in a position, close to a bolt hole 211, of a flange of the first snap valve body, a contact end 31 of the travel switch 3 penetrates through the first through hole 212 and abuts against a flange surface of the second snap valve body, a convex edge 32 is arranged on one side of the travel switch 3, a second through hole 33 is formed in the convex edge 32, the second through hole 33 is aligned with the bolt hole 211, and the easy-to-break bolt 4 penetrates through the second through hole 33 and the bolt hole 211 to fix the travel switch 3; the travel switch 3 is electrically connected with the actuating mechanism 12; the lower end of the second snapping valve body 22 is fixedly connected with an elbow flange 5, and the elbow angle of the elbow flange 5 is 90 degrees; the elbow flange 5 is fixedly connected with a loading and unloading vehicle quick connector 6; the elbow flange 5 and the loading and unloading vehicle quick connector 6 are correspondingly provided with third through holes 8, one end of the chain 7 is connected with the elbow flange 5 and the loading and unloading vehicle quick connector 6 through the third through holes 8, and the other end is connected with the tank body of the tank car.

The safety protection device for the tank body of the tank wagon provided by the embodiment is fixedly connected with the outlet flange 9 of the tank wagon tank body through the flange of the emergency cut-off valve 1, when the connecting pipe of the tank wagon collides in the transportation process, the installation directions of the emergency cut-off valve 1 and the breaking valve 2 are vertical to the ground, external force in any direction at the side part of the connecting pipe can be transmitted to the breaking valve 2 along the pipeline, the breaking bolt 4 is broken under the action of the external force, the second breaking valve body 22 is rapidly separated from the first breaking valve body 21, the collision force is prevented from being transmitted to the interface of the loading and unloading vehicle pipeline and the tank body along the pipeline, and deformation and even tearing caused by collision are avoided; once the second snap valve 22 and the first snap valve 21 are separated, the sealing device in the second snap valve is triggered to instantly automatically seal, so that the leakage of the medium in the tank body is prevented; by arranging the travel switch 3, when the first snap valve body 21 is separated from the second snap valve body 22 or the breakable bolt 4 passing through the second through hole 33 is broken, the contact end 31 of the travel switch 3 is not contacted with the flange surface of the second snap valve body any more, so that the travel switch 3 is triggered to send a signal to the actuating mechanism 12, and the actuating mechanism 12 acts to close the emergency trip valve 1, so that the leakage of a medium is prevented; the emergency cut-off valve 1 is the pneumatic valve, actuating mechanism 12 is the solenoid valve, when the solenoid valve received the signal that comes from travel switch 3, the solenoid valve is opened, compressed air gets into the air chamber, promote pneumatic valve membrane, then promote the valve rod, the valve rod drives the valve core and makes pneumatic valve close emergency cut-off valve 1 still can with vehicle-mounted remote switch, PLC system (not drawn in the picture) communication connection, take place medium leakage and when leaking the volume too big at the loading and unloading car in-process, personnel can't be close the vehicle, then can't close emergency cut-off valve 1 through the emergency cut-off valve switch on the tank wagon automobile body, PLC system remote control emergency cut-off valve 1 that can pass through vehicle-mounted remote switch or control room this moment is closed, thereby avoid the further leakage.

It is right above the utility model provides a safety arrangement of tank wagon jar body carries out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be subject to several improvements and modifications, which also fall within the scope of the claims of the present invention.

Claims (6)

1. A safety protection device for a tank body of a tank car is characterized by comprising an emergency cut-off valve, a breaking valve and a travel switch; the emergency cut-off valve comprises a valve body and an execution mechanism, the break-off valve comprises a first break-off valve body and a second break-off valve body, and the emergency cut-off valve and the first break-off valve body are integrally formed; the first breaking valve body is connected with the second breaking valve body through a flange and is fixed through a breakable bolt; a first through hole is formed in a position, close to a bolt hole, of a flange of the first snap valve body, a contact end of the travel switch penetrates through the first through hole and abuts against a flange face of the second snap valve body, a convex edge is arranged on one side of the travel switch, a second through hole is formed in the convex edge, and the easy-to-break bolt penetrates through the second through hole and the bolt hole to fix the travel switch; the travel switch is electrically connected with the actuating mechanism.

2. The safety protection device for the tank body of the tanker, according to claim 1, further comprising a fast interface of the tanker, wherein the lower end of the second snap valve body is fixedly connected with an elbow flange, and the fast interface of the tanker is fixedly connected with the elbow flange.

3. The tank body safety protection device of the tanker, according to claim 2, further comprising a chain, wherein one end of the chain is connected to the elbow flange and the other end is connected to the tanker tank body.

4. The tank body safety protection device for the tanker according to claim 1, wherein the first snap valve body and the second snap valve body are both of a hemispherical structure.

5. A tank wagon according to claim 2, wherein the elbow flange has an elbow angle of 90 °.

6. The tank body safety protection device for the tanker according to claim 1, wherein said actuator is a solenoid valve.

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