CN115388247B

CN115388247B - Emergency disposal method and device for broken leakage of tank car pipeline

Info

Publication number: CN115388247B
Application number: CN202210923085.5A
Authority: CN
Inventors: 王洋; 詹建荣; 罗金; 曾硕良; 徐颖; 彭皓; 张驰
Original assignee: HUNAN SPECIAL EQUIPMENT INSPECTION & TESTING RESEARCH INSTITUTE
Current assignee: HUNAN SPECIAL EQUIPMENT INSPECTION & TESTING RESEARCH INSTITUTE
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2023-08-01
Anticipated expiration: 2042-08-02
Also published as: CN115388247A

Abstract

The invention discloses a method and a device for emergency treatment of tank truck pipeline fracture leakage, which belong to the field of emergency maintenance and treatment of tank trucks, and comprise a support piece, wherein a plurality of first sealing pieces wrapping the outer side of a pipeline to be treated are hinged on the support piece, and a second sealing piece capable of being in butt joint sealing with the end part of the first sealing piece is hinged on the support piece; through setting up support piece, can be quick with wait to handle tank car pipeline and contact to carry out the measurement of position, wrap up the pipeline between first sealing member and second sealing member, and through setting up the takeover and being located the drainage tube of takeover exit end, can be when wrap up sealed with the pipeline, draw forth the fluid of pipeline internal blowout, reduce the leakage of danger chemical, and guarantee the resistance when leaking stoppage is sealed, it is more convenient to operate.

Description

Emergency disposal method and device for broken leakage of tank car pipeline

Technical Field

The invention belongs to the field of emergency maintenance treatment of tank trucks, and particularly relates to an emergency treatment method and device for broken leakage of a tank truck pipeline.

Background

The dangerous chemical transportation tank truck is easy to cause tank leakage due to various reasons such as tank defects, strong corrosion of media, traffic accidents in the transportation process and the like, and the early stage of the dangerous chemical package with pressure sealing technology is the optimal choice for the dangerous chemical package with leakage.

The existing sealing method with pressure has the limitations of the method, and specific requirements on pressure, temperature, use positions, media, environment and the like are met. Such as: the injection type plugging needs to process a special fixture, the fixture of a leakage part needs to be temporarily removed in emergency treatment, a long time is needed, and the sealing agent used in the plugging process cannot be stored for a long time; the pressure of the adhesive leakage blocking under pressure is very low in general leakage blocking, and the adhesive leakage blocking under pressure cannot be stored for a long time; the magnetic plugging is only applicable to ferromagnetic materials, and the medium temperature cannot exceed 80 ℃; the pressure welding plugging is not suitable for the disposal of flammable and explosive media.

In addition, for an emergency disposal site, when a leakage accident occurs in the dangerous chemical packaging material, namely when the dangerous chemical tank car pipeline position is exploded and broken, on-site disposal personnel (such as fire fighters) need to carry out relevant emergency disposal, and in the disposal process, protective equipment meeting requirements needs to be worn for ensuring safety and conforming to relevant regulations. Taking the second-level personal protection of fire-fighting forces in the emergency rescue of major disaster accidents as an example, the whole body, closed chemical defense suit, all-cotton antistatic inner coat, positive pressure air respirator or full-protection canister are required to be worn, the equipment weighs tens of jin, the physical ability and the operation skill of disposal personnel can be seriously reduced at the moment, and under the condition, the equipment with pressure seal is light, convenient for synchronous operation of multiple people and convenient for use; and when the dangerous chemical tank car pipeline emergency treatment is carried out, the requirement of quick plugging needs to be met so as to avoid leakage of a large number of dangerous chemicals.

Disclosure of Invention

The invention aims to solve the problems and provides an emergency treatment method and device for broken leakage of a tank truck pipeline, which are convenient to operate and rapidly plug and reduce leakage of dangerous chemicals.

In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a tank car pipeline fracture leakage emergency treatment device, includes the support piece, the articulated first sealing member that is provided with two and will wait to handle the outside parcel of pipeline on the support piece, still articulated second sealing member that is provided with can dock each other with the tip of first sealing member on the support piece;

the support piece is fixedly provided with a pulling piece for rapidly pulling the first sealing piece and the second sealing piece to clamp and seal a pipeline to be treated, and the top of the support piece is provided with a first control mechanism for controlling the first sealing piece to move and a second control mechanism for controlling the second sealing piece to move;

one end of the first sealing piece is detachably provided with a locking mechanism.

As a further improvement of the technical scheme, the locking mechanism comprises a plurality of clamping pieces formed by butt joint, an inner jacket is movably arranged in the clamping pieces, and clamping teeth which can be in contact with the surface of a pipeline to be treated are fixedly arranged on the inner surface of the inner jacket.

As a further improvement of the technical scheme, the clamping piece is fixedly connected with a connecting sleeve sleeved on the surface of the pipeline to be treated, a fixing rope is fixedly arranged on the connecting sleeve, a plurality of circles of fixing ropes are tightly wound on the outer surface of the pipeline to be treated, and fixing components which are mutually fixed with the pipeline to be treated are fixedly arranged on the fixing ropes.

As a further improvement of the above technical solution, the first control mechanism includes a handle fixedly disposed at the top of the support member, a movable handle is elastically slidably disposed in the handle, a through hole is disposed on the movable handle, and a pull rope fixedly disposed with the first seal member is disposed in the through hole;

the second control mechanism has the same structure as the first control mechanism, and a pull rope fixedly arranged with the second sealing element is arranged in a through hole of the second control mechanism.

As a further improvement of the technical scheme, the limiting block which can be mutually clamped with the movable handle and the lifting handle is fixedly arranged on the pull rope.

As a further improvement of the technical scheme, the elastic filling pieces which are mutually contacted with the pipeline to be treated are fixedly arranged on the supporting piece.

As a further improvement of the technical scheme, the second sealing piece is provided with a clamping hook, and the first sealing piece is provided with a clamping table which can be mutually clamped with the clamping hook after being contacted and butted with the second sealing piece.

As a further improvement of the technical scheme, the second sealing element is in threaded connection with a connecting pipe, and the inlet end of the connecting pipe is rotatably provided with a joint which is in butt joint with the port of the pipeline to be treated;

the outlet end of the connecting pipe is connected with a drainage pipeline, and a handle and a valve body are fixedly arranged on one side close to the outlet end of the connecting pipe.

A method of disposing of a broken tank line using a tank line break leak emergency disposal device, comprising the steps of:

1) Positioning and placing: placing the support piece on the outer side of the pipeline to be treated, and ensuring that the distance between the end part of the support piece and the pipe orifice of the pipeline is 10-15 cm;

2) Clamping and sealing: according to the sequence, the pulling piece between the supporting piece and the first sealing piece is released by controlling the first control mechanism, so that the first sealing piece is quickly and automatically combined together towards the middle, the pipeline is clamped, and the clamping positions of the pipeline and the first sealing piece are adjusted along the trend;

the second control mechanism is controlled to release the pulling piece between the supporting piece and the second sealing piece, so that the second sealing piece is turned over and combined with the first sealing piece, the first sealing piece and the second sealing piece cover and seal the mouth of the pipeline, and fluid in the pipeline is led out through the drainage end of the second sealing piece;

3) Fastening and fixing: double or multiple people operate simultaneously; fastening bolts fixed between the second sealing elements and the first sealing elements;

abutting the locking mechanism with the end part of the first sealing element and clamping and fixing the locking mechanism on the pipeline;

4) Plugging: and plugging the drainage end of the second sealing element to finish pipeline plugging treatment.

The invention has the beneficial effects that:

the invention provides a method and a device for emergency treatment of broken leakage of a tank truck pipeline, which can quickly contact with the tank truck pipeline to be treated and measure the position of the tank truck pipeline, wrap the pipeline between a first sealing element and a second sealing element, and can lead out fluid sprayed out of the pipeline while wrapping and sealing the pipeline by arranging a connecting pipe and a drainage tube positioned at the outlet end of the connecting pipe, thereby reducing leakage of dangerous chemicals, ensuring resistance during plugging and sealing and being more convenient to operate.

Through set up the pulling piece between support piece and first sealing member, between second sealing member and the support piece, can realize the quick closed butt joint of first sealing member, second sealing member after operating personnel put the position, accord with emergency treatment's demand to can make the intraductal fluid block as much as possible and blocked, the operating personnel also can be less and danger between the article contact.

Set up the handle at support piece's top, can make things convenient for operating personnel's transport, and through setting up stay cord and movable handle, realize the closed control to first sealing member, second sealing member, to the fire control finger fighter of loading, have complicated and subtle operating procedure, whole easy operation uses swiftly, is applicable to the quick operation of emergent scene.

After the pipeline is sealed through the first sealing element and the second sealing element, the joint and the pipe orifice can be abutted through pushing the connecting pipe to move, so that an anti-explosion effect is achieved, when the first sealing element and the second sealing element are completely sealed, and after the joint and the pipe orifice are abutted, the valve body can be closed, and the leakage stoppage of the whole pipeline is achieved.

Drawings

Fig. 1 is a schematic diagram of an explosion rupture of a tank car pipeline as described in the background art.

FIG. 2 is a schematic diagram of the overall structure of the present invention;

FIG. 3 is a schematic cross-sectional view taken in the direction A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken in the direction B-B of FIG. 2;

FIG. 5 is a schematic view of a partial enlarged structure at C in FIG. 2;

FIG. 6 is a schematic view of a partial enlarged structure at D in FIG. 2;

FIG. 7 is a schematic view of the part of the structure in the direction E in FIG. 2;

FIG. 8 is a schematic view of the first seal when deployed to both sides;

FIG. 9 is a schematic view of the second seal when folded up;

fig. 10 is a schematic view of a rope clip used in the present invention.

The text labels in the figures are expressed as: 10. a support; 11. a first seal; 12. a second seal; 13. a pulling member; 14. a clamping piece; 15. an inner jacket; 151. clamping teeth; 16. connecting sleeves; 17. a fixing rope; 18. a handle; 19. a movable handle; 191. a through hole; 20. a pull rope; 21. a limiting block; 22. an elastic filler; 23. a clamping hook; 24. a clamping table; 25. connecting pipe; 26. a joint; 27. a handle; 28. and a valve body.

Description of the embodiments

In order that those skilled in the art may better understand the technical solutions of the present invention, the following detailed description of the present invention with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present invention.

As shown in fig. 1-10 of the specification, as a specific embodiment of the present invention, the specific structure of the present invention is: the utility model provides a tank car pipeline fracture leakage emergency treatment device, including support piece 10, in this embodiment, support piece 10 has been included the backup pad that is located the top, and the support fork of fixed setting in the backup pad below, when handling the pipeline, arrange the pipeline with in the support fork, the articulated first seal 11 that is provided with two on support piece 10 and wraps up the pipeline outside to be handled, in this embodiment, first seal 11 is provided with two that dock around, specifically arc-shaped structure (can refer to description figures 3 and 8), sealing strip has been set up between two first seal 11 and between first seal 11 and support piece 10, the prefabricated hole of being convenient for dock the two first seal 11 each other is set up in the downside position of first seal 11, can insert fastening bolt in the hole, realize merging two first seal 11 fixed seal, fixedly set up with the seal cover that contacts each other between the pipeline on first seal 11, can take place deformation by oneself, can adapt to the change of waiting to handle pipe diameter in a certain limit, the articulated first seal 10 has been provided with the second seal 12 on the articulated second seal 12 can be provided with on the articulated first seal 12 and the face seal 12 each other;

the support 10 is fixedly provided with a pulling member 13 for rapidly pulling the first sealing member 11 and the second sealing member 12 to clamp and seal a pipeline to be treated, in this embodiment, the pulling member 13 is a selected spring, the pulling member 13 must ensure that after the second sealing member 12 is turned down and is in butt joint with the first sealing member 11, a pulling force can be provided, pressure between the first sealing member 11 and the second sealing member 12 is ensured, so that a large pulling force is conveniently provided for the second sealing member 12, when the second sealing member 12 is conveniently in butt joint with the first sealing member 11, rapid overturning can be realized, and after the second sealing member 12 is in butt joint with the first sealing member 11, sealing strips can be clamped between the second sealing member 12 and the first sealing member, the leakage of fluid in the pipeline is reduced, a first control mechanism for controlling the movement of the first sealing member 11 and a second control mechanism for controlling the movement of the second sealing member 12 are arranged at the top of the support 10, the first control mechanism and the second control mechanism are mainly convenient for stirring the first sealing member 11 at two sides or pushing the second sealing member 11 forward, or the second sealing member is convenient to be opened and clamped between the second sealing member and the first sealing member 11 and the pipe opening is opened, and the pipe opening is opened through the support 10, and the pipe opening is opened, and the pipe opening is sealed between the first sealing member and the pipe opening is sealed through the support 10 and the support is adjusted, and the sealing member is opened and the pipe opening is opened and sealed;

the locking mechanism is detachably arranged at one end of the first sealing element 11, and is used for fixing the first sealing element 11 on the surface of a pipeline, so that after the pipeline opening is sealed, fluid is prevented from entering into a cavity surrounded by the first sealing element 11 and the second sealing element 12, and the pressure in the first sealing element 11 and the second sealing element 12 is increased, so that slippage occurs between the pipeline and the first sealing element 11.

Further optimizing on the basis of the above embodiments, as shown in fig. 2, 4 and 5 of the specification: the locking mechanism comprises a plurality of clamping pieces 14 (refer to fig. 4 in the specification), wherein the clamping pieces 14 are pipes formed by mutually butting an upper part and a lower part, the upper part and the lower part are fixed through bolts, a clamping ring is arranged at one end of the clamping piece 14, a clamping groove capable of being mutually clamped with the clamping ring is formed at the end part of the first sealing piece 11, and particularly refer to fig. 5 in the specification, an inner clamping sleeve 15 is movably arranged in the clamping piece 14, the inner clamping sleeve 15 and the clamping piece 14 can mutually slide, an accommodating groove capable of accommodating the inner clamping sleeve 15 is further formed in the inner surface of the clamping piece 14, a bolt capable of tightly propping the inner clamping sleeve 15 is arranged on the clamping piece 14, the bolt is in threaded connection with the clamping piece 14, after the bolt is screwed, clamping force between the inner clamping sleeve 15 and the outer wall of the pipe can be increased, clamping teeth 151 capable of being contacted with the surface of the pipe to be treated are fixedly arranged on the inner surface of the inner clamping sleeve 15, the clamping teeth 151 are inclined teeth capable of preventing the pipe from sliding out of the first sealing piece 11; the clamping piece 14 is fixedly connected with the connecting sleeve 16 sleeved on the surface of the pipeline to be treated, the connecting sleeve 16 is a sleeve ring, the connecting sleeve 16 is formed by butt joint of two parts, the connecting sleeve 16 is fixedly provided with a fixing rope 17, the fixing rope 17 is a steel wire rope, the outer surface of the pipeline to be treated is tightly wound with a plurality of rings, the fixing rope 17 is fixedly provided with a fixing component mutually fixed with the pipeline to be treated, the fixing component comprises a fixing ring fixedly arranged on the pipeline, the fixing ring is formed by butt joint of two parts, and a rope chuck for fixing the steel wire rope is a U-shaped chuck, as shown in an attached drawing 10 of the specification, the chuck clamps one end of the steel wire rope, the steel wire rope penetrates through the fixing ring, the chuck and the fixing ring mutually prop up, the steel wire rope is limited to slide, the steel wire rope is wound on the pipeline in a plurality of rings, a certain friction force is formed between the steel wire rope and the outer wall of the pipeline, when the steel wire rope and the pipeline relatively slide, the friction force between the steel wire rope and the pipeline is increased, the steel wire rope and the pipeline is further reduced, the sliding between the steel wire rope and the pipeline is relatively sliding with the first sealing piece 11, and the first sealing piece 11 can slide relatively.

Further optimizing on the basis of the above embodiments, as shown in fig. 2, 3 and 6 of the specification: the first control mechanism comprises a lifting handle 18 fixedly arranged at the top of the supporting piece 10, the lifting handle 18 is arranged to facilitate the handheld operation of fire fighters, a movable handle 19 is elastically arranged in the lifting handle 18 in a sliding manner, the movable handle 19 penetrates through the sliding cavity, a limiting seat positioned in the sliding cavity is arranged on the movable handle 19, a spring is arranged between the limiting seat and the sliding cavity, the spring can push the movable handle 19 to move downwards, a through hole 191 penetrating through the movable handle 19 is formed in the movable handle 19, and a pull rope 20 fixedly arranged with the first sealing piece 11 is arranged in the through hole 191;

the second control mechanism has the same structure as the first control mechanism, a pull rope 20 fixedly arranged with the second sealing member 12 is arranged in a through hole 191 of the second control mechanism, the pull rope 20 is also a selected steel wire rope in the embodiment, a reversing ring, particularly an iron ring, is fixedly arranged at the top of the supporting member 10, after the pull rope 20 connected with the first sealing member 11 passes through the reversing ring, the pull rope 20 is respectively separated forwards and backwards and is fixedly connected with the first sealing member 11, a limiting block 21 which can be mutually clamped with the movable handle 19 and the handle 18 is fixedly arranged on the pull rope 20, in the embodiment, the limiting block 21 is an iron block fixedly arranged on the pull rope 20, the iron block is smaller than the size of the through hole 191, the iron block can pass through freely, or the iron block can be replaced with an iron ball, when the movable handle 19 is not pulled, the spring pushes the movable handle 19 to move downwards, the limiting block 21 is clamped between the handle 18 and the movable handle 19, the limiting block 21 can not pass through the handle 19, and the limiting block 21 can be completely pulled out of the through hole 191 and the through hole 11, and the through hole 191 can be completely pulled out of the through hole 21 and the through hole 13, and the sealing member 11 can be completely and can be pulled and pushed and the sealing member 11 is further limited.

Further optimizing on the basis of the above embodiments, as shown in fig. 2, 3 and 7 of the specification: the elastic filling piece 22 which is mutually contacted with the pipeline to be treated is fixedly arranged on the supporting piece 10, the elastic filling piece 22 is an air bag and is fixedly arranged in the supporting fork of the supporting piece 10 and can deform, and the elastic filling piece is mainly convenient for filling the gap between the supporting fork and the pipeline; the second sealing element 12 is provided with a clamping hook 23, a torsion spring is arranged between the clamping hook 23 and the second sealing element 12, the first sealing element 11 is provided with a clamping table 24 which can be mutually clamped between the clamping hook 23 after being contacted and butted with the second sealing element 12, when the second sealing element 12 and the first sealing element 11 are mutually butted, the first sealing element 11 is turned downwards, the clamping hook 23 can be contacted with the surface of the second sealing element 12, when the second sealing element 12 and the first sealing element 11 are contacted together, the clamping hook 23 is clamped into the clamping table 24, and can not be separated from the clamping table 24 under the action of the torsion spring, so that the second sealing element 12 and the first sealing element 11 can be prevented from being separated from each other, the clamping hook 23 can be separated from the clamping table 24 by downwards pulling the clamping hook 23 when the second sealing element 12 is unlocked, and the second sealing element 12 can be continuously turned upwards.

The second sealing element 12 is in threaded connection with a connecting pipe 25, and the inlet end of the connecting pipe 25 is rotatably provided with a joint 26 which is in butt joint with the port of the pipeline to be treated; the joint 26 adopts to be the rubber joint, can prevent to produce static when the butt joint with the pipeline port, the security when guaranteeing the butt joint, the drainage pipeline is connected to the exit end of takeover 25, and the drainage tube is sealed the pipeline after, carries out drainage to other containers with pipeline spun fluid in the tank car, and is close to takeover 25 exit end one side is fixed to be provided with handle 27 and valve body 28, through rotating handle 27, can drive takeover 25 for the reciprocal activity of second sealing member 12 to joint 26 and pipeline port butt joint, when first sealing member 11, second sealing member 12 seal up the pipeline, after joint 26 and pipeline port butt joint are accomplished, the accessible is screwed up valve body 28, realizes the shutoff to the pipeline.

1) Positioning and placing: the fire fighter holds the handle 18 to work, then places the support member 10 on the outer side of the pipeline to be treated, places the support fork on the support member 10 on the outer side of the pipeline, and enables the elastic filling member 22 to be in contact with the outer wall of the pipeline, and continuously adjusts the distance between the support fork on the support member 10 and the pipe orifice of the pipeline by visual observation, so as to ensure the distance between the end part of the support member 10 and the pipe orifice of the pipeline to be 10-15 cm;

2) Clamping and sealing: by controlling the first control mechanism in sequence, the pulling member 13 between the support member 10 and the first sealing member 11 is released in such a way that: firstly, the movable handle 19 is pulled, so that the limiting block 21 on the pull rope 20 connected with the first sealing element 11 passes through the through hole 191, and therefore, under the pulling of the pulling element 13, the first sealing element 11 can be quickly and automatically combined together towards the middle, the pipeline is clamped, and the clamping positions of the pipeline and the first sealing element 11 are adjusted along the trend, so that the pipeline is positioned at the center of the clamping of the first sealing element 11;

by controlling the second control mechanism to release the pulling member 13 between the supporting member 10 and the second sealing member 12 in a similar manner to that of controlling the first sealing member 11, by pulling the movable handle 19 upwards to allow the limiting block 21 on the pulling rope 20 connected with the second sealing member 12 to pass through the through hole 191, the second sealing member 12 can be turned over to be combined with the first sealing member 11 under the pulling of the pulling member 13, when the second sealing member 12 is in butt joint with the first sealing member 11, the clamping hook 23 is clamped into the clamping table 24 and is automatically clamped with the clamping table 24, self-locking is realized between the second sealing member 12 and the first sealing member 11, the first sealing member 11 and the second sealing member 12 cover and seal the pipe mouth, the first sealing member 11 and the second sealing member 12 wrap up the pipe, the leakage of fluid in the pipe is reduced, the fluid in the pipe is led out through the drainage end of the second sealing member 12, in particular, and the drainage pipe connected with the end 25 is discharged to the outside;

3) Fastening and fixing: double or multiple people operate simultaneously; in the application, double operation is adopted, and the sealing positions between the first sealing element 11 and the second sealing element 12 are mainly reinforced during operation, specifically, bolts fixed between a plurality of first sealing elements 11 and between the second sealing element 12 and the first sealing element 11 are fastened;

when the locking mechanism is arranged, two clamping pieces 14 are clamped at the upper and lower positions of a pipeline, clamping rings arranged on the clamping pieces 14 are clamped into clamping grooves reserved on the first sealing piece 11, the butt joint surfaces between the clamping pieces 14 and the butt joint surfaces between the first sealing piece 11 cannot be in the same plane, after the positions of the clamping pieces 14 are arranged, the butt joint clamping pieces 14 are fastened through fastening bolts, then the bolts arranged on the clamping pieces 14 are tightened, clamping teeth 151 on an inner jacket 15 and the surface of the pipeline are clamped, a connecting sleeve 16 is sleeved on the pipeline, the clamping pieces and the clamping pieces 14 are mutually fixed through steel ropes, or other modes can be adopted, then a fixing rope 17 is fixed on the connecting sleeve 16, a plurality of circles of coils are wound on the surface of the pipeline, and after the fixing ring is fixed on the pipeline, the fixing rope 17 passes through the fixing ring and is fastened through a telescopic clamping head;

4) Plugging: the connecting pipe 25 drives the joint 26 to move towards one side of the pipe orifice of the pipeline by rotating the handle 27 until the joint 26 and the pipe orifice are butted together, and then the drainage end of the second sealing element 12 can be plugged by screwing the valve body 28, so that the pipe plugging treatment is completed.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this invention, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the invention, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present invention.

Claims

1. The utility model provides an emergent handling device of tank car pipeline fracture leakage, includes support piece (10), its characterized in that: two first sealing elements (11) wrapping the outer side of the pipeline to be treated are hinged on the supporting element (10), and a second sealing element (12) which can be in butt joint sealing with the end parts of the first sealing elements (11) is hinged on the supporting element (10);

the second sealing piece (12) is in threaded connection with a connecting pipe (25), and the inlet end of the connecting pipe (25) is rotatably provided with a joint (26) which is in butt joint with a port of a pipeline to be treated;

the outlet end of the connecting pipe (25) is connected with a drainage pipeline, and a handle (27) and a valve body (28) are fixedly arranged on one side close to the outlet end of the connecting pipe (25);

the support (10) is fixedly provided with a pulling piece (13) for rapidly pulling the first sealing piece (11) and the second sealing piece (12) to clamp and seal a pipeline to be treated, and the top of the support (10) is provided with a first control mechanism for controlling the first sealing piece (11) to move and a second control mechanism for controlling the second sealing piece (12) to move;

the first control mechanism comprises a lifting handle (18) fixedly arranged at the top of the supporting piece (10), a movable handle (19) is elastically arranged in the lifting handle (18) in a sliding manner, a through hole (191) penetrating through the movable handle (19) is formed in the movable handle (19), and a pull rope (20) fixedly arranged with the first sealing piece (11) is arranged in the through hole (191);

the second control mechanism has the same structure as the first control mechanism, and a pull rope (20) fixedly arranged with the second sealing element (12) is arranged in a through hole (191) of the second control mechanism;

a limiting block (21) which can be mutually clamped with the movable handle (19) and the lifting handle (18) is fixedly arranged on the pull rope (20);

one end of the first sealing piece (11) is detachably provided with a locking mechanism.

2. The tank car pipeline fracture leakage emergency treatment device according to claim 1, wherein: the locking mechanism comprises a plurality of clamping pieces (14) formed by butt joint, an inner jacket (15) is movably arranged in the clamping pieces (14), and clamping teeth (151) which can be in contact with the surface of a pipeline to be treated are fixedly arranged on the inner surface of the inner jacket (15).

3. The tank car pipeline fracture leakage emergency treatment device according to claim 2, wherein: the clamping piece (14) is fixedly connected with a connecting sleeve (16) sleeved on the surface of the pipeline to be treated, a fixing rope (17) is fixedly arranged on the connecting sleeve (16), a plurality of circles of fixing ropes (17) are tightly wound on the outer surface of the pipeline to be treated, and fixing assemblies mutually fixed with the pipeline to be treated are fixedly arranged on the fixing ropes (17).

4. The tank car pipeline fracture leakage emergency treatment device according to claim 1, wherein: elastic filling pieces (22) which are mutually contacted with the pipeline to be treated are fixedly arranged on the supporting piece (10).

5. The tank car pipeline fracture leakage emergency treatment device according to claim 1, wherein: the second sealing piece (12) is provided with a clamping hook (23), and the first sealing piece (11) is provided with a clamping table (24) which can be mutually clamped with the clamping hook (23) after being contacted and butted with the second sealing piece (12).

6. A method of handling broken tank line using a tank line break leakage emergency handling device according to any of claims 1 to 5, characterised in that: the method comprises the following steps:

1) Positioning and placing: placing the support (10) on the outer side of the pipeline to be treated, and ensuring that the distance between the end part of the support (10) and the pipe orifice of the pipeline is 10-15 cm;

2) Clamping and sealing: according to the sequence, the pulling piece (13) between the supporting piece (10) and the first sealing piece (11) is released by controlling the first control mechanism, so that the first sealing piece (11) is quickly and automatically combined together towards the middle, the pipeline is clamped, and the clamping positions of the pipeline and the first sealing piece (11) are adjusted along with the sequence;

by controlling the second control mechanism, a pulling piece (13) between the supporting piece (10) and the second sealing piece (12) is released, so that the second sealing piece (12) is turned over and is combined with the first sealing piece (11) in a joint way, the first sealing piece (11) and the second sealing piece (12) cover and seal the pipeline opening, and fluid in the pipeline is led out through a drainage end of the second sealing piece (12);

3) Fastening and fixing: double or multiple people operate simultaneously; fastening bolts fixed between a plurality of second sealing elements (12) and between the second sealing elements (12) and the first sealing elements (11);

abutting the locking mechanism with the end part of the first sealing element (11) and clamping and fixing the locking mechanism on a pipeline;

4) Plugging: and plugging the drainage end of the second sealing piece (12) to finish pipeline plugging treatment.