CN114508698B

CN114508698B - Pipeline emergency device

Info

Publication number: CN114508698B
Application number: CN202210148636.5A
Authority: CN
Inventors: 邵博; 梁程; 姚翔龙; 尚超
Original assignee: China Three Gorges Corp
Current assignee: China Three Gorges Corp
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2023-06-23
Anticipated expiration: 2042-02-17
Also published as: CN114508698A

Abstract

The invention provides a pipeline emergency device, comprising: the first pipeline and the second pipeline are arranged adjacent to the first pipeline; the connecting piece is arranged at the end part between the first pipeline and the second pipeline and is suitable for connecting the first pipeline and the second pipeline; the pneumatic switch piece is arranged on the connecting piece and comprises a pneumatic unit and a vibration detection unit, wherein the pneumatic unit and the vibration detection unit are connected, the vibration detection unit is suitable for detecting external vibration, and the pneumatic unit is provided with a closed state for cutting off the first pipeline and the second pipeline under the action of the vibration detection unit and an open state for communicating the first pipeline and the second pipeline. The on-off control of the pipeline is realized through the aerodynamic force, the use of electric power as driving energy is avoided, the reliability and the safety of the whole pipeline emergency device are improved, and the defect that potential safety hazards exist in the electric power gas blocking structure of the gas pipeline in the disaster process of earthquake and the like in the prior art is effectively overcome.

Description

Pipeline emergency device

Technical Field

The invention relates to the technical field of fuel gas conveying, in particular to a pipeline emergency device.

Background

A gas line refers to a conduit that is transported from a production site or process plant to a municipal gas distribution center or industrial enterprise user. The natural gas is conveyed by the gas pipeline, which is the only mode for conveying a large amount of natural gas on land. Gas lines are typically continuous closed conveyor systems assembled from individual tubes connected one to the other, and the lines typically use deep-processed steel pipes. The gas pipeline has large hazard when accident happens, and has wide range. Once the pipeline is broken, the release energy is large, the tearing length is long, and if the discharged natural gas encounters open fire, the fire is extremely easy to cause, so that the disastrous loss is caused.

In order to avoid the occurrence of disasters such as earthquakes, which are caused by pipeline breakage due to ground distortion or sinking, and more serious disasters due to excessive leakage of natural gas, emergency gas blocking structures are required to be arranged in pipelines at certain intervals. However, in the prior art, the gas blocking structure generally adopts electric power as emergency driving energy, so that the reliability is poor, and the hidden danger that the electric element is in virtual connection to generate spark to detonate leaked gas exists in the process of external disasters.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the safety hidden danger exists in the electric power gas blocking structure of the gas pipeline in the disaster process of earthquake and the like in the prior art, so as to provide the pipeline emergency device.

The invention provides a pipeline emergency device, comprising: a first pipeline; a second pipeline arranged adjacent to the first pipeline; the connecting piece is arranged at the end part between the first pipeline and the second pipeline and is suitable for connecting the first pipeline and the second pipeline; the pneumatic switch piece is arranged on the connecting piece and comprises a pneumatic unit and a vibration detection unit, wherein the pneumatic unit and the vibration detection unit are connected, the vibration detection unit is suitable for detecting external vibration, and the pneumatic unit is provided with a closed state for cutting off the first pipeline and the second pipeline under the action of the vibration detection unit and an open state for communicating the first pipeline and the second pipeline.

The pneumatic unit includes: the pneumatic assembly is connected with the vibration detection unit; the brake assembly is arranged on the connecting piece and comprises a brake plate, wherein the brake plate is connected with the pneumatic assembly, is in a communication position which is arranged at intervals with the connecting piece, is far away from the pneumatic assembly under the action of the vibration detection unit, and is arranged at a blocking position in the connecting piece.

The shutter assembly further includes: the brake box is arranged on the connecting piece, an accommodating space is arranged in the brake box, the accommodating space extends along the height direction, is respectively communicated with the first pipeline and the second pipeline, and is internally provided with the brake plate; the brake plate is provided with a first clamping part, the brake box is connected with and provided with the pneumatic assembly, and the pneumatic assembly extends to the accommodating space and is in clamping connection with the first clamping part at the communication position.

The pneumatic assembly includes: the gas containing main body is arranged outside the brake box and is suitable for containing high-pressure gas, a connecting channel is arranged on one side, facing the brake box, of the gas containing main body, the connecting channel is communicated with the containing space, a piston piece is arranged on the connecting channel, a second clamping part is arranged on the piston piece, and the second clamping part is suitable for being in clamping connection with the first clamping part on the brake plate at a communicating position; the trigger piece is communicated with the gas containing main body, is connected with the vibration detection unit and is suitable for discharging gas in the gas containing main body under the action of the vibration detection unit.

The trigger piece includes: the air pipe is communicated with the air containing main body; the air bag component comprises an air bag piece and a needle piece, wherein the air bag piece is detachably arranged at the end part of the air pipe, which is far away from the air accommodating main body, and the needle piece is connected with the vibration detection unit and moves towards the air bag piece under the action of the vibration detection unit and damages the air bag piece in an emergency state.

The airbag assembly further includes: the baffle sets up on the vibrations detecting element, be provided with the needle mouth on it, gasbag spare and needle are established respectively to cross needle mouth both sides, cross needle mouth orientation one side of gasbag spare is provided with the needle mouth locating part, the needle mouth locating part with gasbag spare detachably connects the setting under the emergency, the needle spare is suitable for to pass cross the needle mouth and penetrate the gasbag spare.

The vibration detection unit includes: the shell is arranged on the switch box, a first magnetic piece and a second magnetic piece which are arranged at intervals are arranged in the shell, an outlet is formed in the shell, the partition plate is arranged on the outer wall of the shell, and the partition plate is arranged adjacent to the outlet; the third magnetic piece is arranged in the shell, is arranged between the first magnetic piece and the second magnetic piece, is suspended in the shell under the action of magnetic force, and is suitable for moving between the first magnetic piece and the second magnetic piece under the action of external vibration, and one end of the third magnetic piece extends out of the outer side of the leading-out port and is provided with the needle piece.

The brake box is characterized in that a rod passing opening is further formed in one side, far away from the connecting piece, of the brake box, a slide rod piece is further arranged on the brake plate, and the slide rod piece penetrates through the rod passing opening and stretches into the outer side of the brake box.

The brake assembly further comprises an alarm member arranged on the rod body extending to the outer side of the brake box and suitable for indicating the position of the brake plate.

The pipeline emergency device further comprises a displacement detection unit, the displacement detection unit comprises: the induction piece is arranged on the outer wall of the switch box and protrudes out of the switch box along the height direction; the sensing units are arranged on the sensing piece at intervals along the height direction and are suitable for detecting the position of the warning piece or the sliding rod piece.

At least one sealing ring is arranged in the connecting channel, and the sealing ring is arranged in the connecting channel at one side far away from the accommodating space.

The gas containing main body is also provided with an inflating piece, and the inflating piece is provided with a one-way valve.

The air containing main body is also provided with an air pressure gauge which is suitable for detecting the air pressure in the air containing main body.

The gas containing main body is also provided with a pressure sensing unit.

The pipeline emergency device further comprises a controller which is respectively in communication connection with the pressure sensing unit and the sensing unit, and the controller is further connected with a circuit breaking unit.

The connecting piece includes: the pipeline flanges are respectively arranged at the end parts of the first pipeline and the second pipeline; the connecting body is provided with mounting flanges on two sides of the connecting body respectively, the mounting flanges are in sealing connection with the pipeline flanges, and the pneumatic switch piece is arranged on the connecting body.

The technical scheme of the invention has the following advantages:

1. the invention provides a pipeline emergency device, comprising: the first pipeline and the second pipeline are arranged adjacent to the first pipeline; the connecting piece is arranged at the end part between the first pipeline and the second pipeline and is suitable for connecting the first pipeline and the second pipeline; the pneumatic switch piece is arranged on the connecting piece and comprises a pneumatic unit and a vibration detection unit, wherein the pneumatic unit and the vibration detection unit are connected, the vibration detection unit is suitable for detecting external vibration, and the pneumatic unit is provided with a closed state for cutting off the first pipeline and the second pipeline under the action of the vibration detection unit and an open state for communicating the first pipeline and the second pipeline.

Through setting up pneumatic switch spare on the connecting piece to through the detection of vibrations detecting element to outside vibration and to the feedback of pneumatic unit, make pneumatic unit can realize the on-off control to the connection between different pipelines, set up like this, can take place earthquake or other calamity in-process in the outside, realize the on-off control to the pipeline through aerodynamic force, avoid using electric power as driving source, improve whole pipeline emergency device's reliability and security, effectively overcome prior art and have the defect of potential safety hazard at the gas blocking structure of the electric power of calamity in-process gas pipeline such as earthquake.

2. The invention provides a pipeline emergency device, a trigger piece comprises: the air pipe is communicated with the air containing main body; the air bag component comprises an air bag piece and a needle piece, wherein the air bag piece is detachably arranged at the end part of the air pipe, which is far away from the air accommodating main body, and the needle piece is connected with the vibration detection unit and moves towards the air bag piece under the action of the vibration detection unit and damages the air bag piece in an emergency state.

The setting is passed through the gasbag subassembly that the trachea is connected with holding the gas main part, and the gasbag subassembly includes gasbag spare and needle spare, through at vibration in-process, the needle spare moves to the gasbag spare and stabs the gasbag spare, let out hold gas main part internal pressure, make hold the interior piston spare of gas main part keep away from accommodation space, first block portion and second block portion break away from spacingly, make the brake block board break away from the intercommunication position and move to the shutoff position, realize the shutoff to the pipeline, like this, the setting can utilize atmospheric pressure to change the switching action that changes mechanical properties and then realize mechanical structure, and a structure is simple, easily trigger the realization, simultaneously, gasbag spare can be dismantled with the trachea, resume the loss with low costs of pipeline intercommunication, only need change the gasbag can.

3. The invention provides a pipeline emergency device, a vibration detection unit comprises: the shell is arranged on the switch box, a first magnetic piece and a second magnetic piece which are arranged at intervals are arranged in the shell, an outlet is formed in the shell, the partition plate is arranged on the outer wall of the shell, and the partition plate is arranged adjacent to the outlet; the third magnetic piece is arranged in the shell, is arranged between the first magnetic piece and the second magnetic piece, is suspended in the shell under the action of magnetic force, and is suitable for moving between the first magnetic piece and the second magnetic piece under the action of external vibration, and one end of the third magnetic piece extends out of the outer side of the leading-out port and is provided with the needle piece.

Through setting up first magnetism spare and second magnetism spare in the shell to set up the third magnetism spare between two magnetism spare, realize the suspension through magnetic force, when receiving external vibrations, the third magnetism spare can take place reciprocating motion at first magnetism spare and second magnetism spare, set up the needle spare simultaneously on the third magnetism spare, the needle spare is in the displacement in-process with the destruction of gasbag spare realization to the gasbag spare, and then realize the drive to the brake plate, set up like this, through the mode of magnetic suspension, realize the detection to vibrations and with hold the linkage of gas main part, need not the electric power energy supply both can realize vibrations detection, further improve pipeline emergency device holistic reliability and security.

4. According to the pipeline emergency device provided by the invention, the gate box is further provided with the rod passing opening at one side far away from the connecting piece, the gate plate is further provided with the sliding rod piece, and the sliding rod piece penetrates through the rod passing opening and extends to the outer side of the gate box.

Through set up the slide rod spare of connecting the brake block and supply the slide rod spare to pass the pole mouth of crossing for the slide rod spare corresponds the brake block position and goes up and down, and the external personnel of being convenient for observe the position of brake block according to the length that the slide rod spare stretched out the pole mouth, also be convenient for when resume pipeline intercommunication, carry the slide rod spare through external force, and then reset the brake block.

5. The invention provides a pipeline emergency device, the brake assembly further comprises an alarm piece, and the alarm piece is arranged on a rod body of the sliding rod piece extending to the outer side of the brake box and is suitable for indicating the position of the brake plate.

The setting of warning spare, the user of being convenient for carries out quick and effective observation to the extension length of litter spare, improves warning and suggestion dynamics to the user, further improves the security performance.

6. According to the pipeline emergency device provided by the invention, at least one sealing ring is arranged in the connecting channel, and the sealing ring is arranged in the connecting channel at one side far away from the accommodating space.

The setting of sealing washer can improve the gas tightness in holding the gas main part on the one hand, avoids gas leakage, influences interior pressure, and on the other hand can stop the displacement of piston spare, avoids the piston spare in the connecting channel to move to breaking away from the connecting channel in holding the gas space under the negative pressure effect, makes pneumatic component unable and the linkage of floodgate assembly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a pipeline emergency device provided in an embodiment of the present invention in an open state of a pneumatic unit;

FIG. 2 is a schematic view of the pipeline emergency device shown in FIG. 1 in a closed state of the pneumatic unit;

FIG. 3 is a schematic view of the pneumatic assembly of the line emergency device of FIG. 1;

FIG. 4 is a schematic view of the air bag assembly and shock detection unit of the line emergency apparatus shown in FIG. 1;

reference numerals illustrate:

1-a first pipeline; 2-a second pipeline; 3-connectors; 31-a pipe flange; 32-a connecting body; 33-mounting flanges; 4-pneumatic assembly; 41-a gas-containing body; 411-connecting channel; 412-a piston member; 413-a second engagement portion; 414-sealing ring; 415-an inflatable member; 416-a one-way valve; 417-barometer; 418-a pressure sensing unit; 42-trachea; a 43-balloon assembly; 431-a balloon member; 432-needle; 433-separator; 434-passing the needle opening; 435-needle opening limiter; a 5-shutter assembly; 51-a cassette; 511-accommodation space; 512-rod passing opening; 52-a gate plate; 521-a first engagement portion; 522-a slide rod piece; 53-warning member; 6-a vibration detection unit; 61-a housing; 611-an outlet; 62-a first magnetic member; 63-a second magnetic member; 64-a third magnetic member; 7-a sensing piece; 8-sensing unit.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 to 4, the present embodiment provides a pipeline emergency device, including: a first pipeline 1, a second pipeline 2, a connecting piece 3 and a pneumatic switch piece.

Specifically, the first pipeline 1 and the second pipeline 2 are adjacent, the respective end parts are opposite and are arranged at intervals, and further, the two pipelines are coaxially arranged

The connecting piece 3 is arranged on the end part between the first pipeline 1 and the second pipeline 2 and is used for connecting the first pipeline 1 and the second pipeline 2, in the embodiment, the connecting piece 3 comprises a pipeline flange 31 and a connecting main body 32, the two pipeline flanges 31 are respectively arranged on the end parts of the first pipeline 1 and the second pipeline 2, which are oppositely arranged, the connecting main body 32 is tubular, mounting flanges 33 are respectively arranged at two ends of the first pipeline 1 and the second pipeline 2, the mounting flanges 33 are arranged at connecting positions with the pipeline flanges 31, and sealing rings 414 are respectively arranged inside the connecting main body 32, and the mounting flanges 33 are in sealing connection with the two flanges through fixing bolts with the pipeline flanges 31. In this embodiment, the connector 3 is disposed between two pipes, and as an alternative embodiment, a plurality of branch pipes may be connected to the same connector 3 at the same time.

The pneumatic switch piece sets up in connecting piece 3 upside, including connecting the pneumatic unit and the vibrations detecting element 6 that set up, vibrations detecting element 6 can detect outside vibrations, and pneumatic unit has the closed state that cuts off first pipeline 1 and second pipeline 2 under vibrations detecting element 6 effect to and the open state of intercommunication first pipeline 1 and second pipeline 2.

Through setting up pneumatic switch spare on connecting piece 3 to through the detection of vibrations detecting element 6 to outside vibration and to the feedback of pneumatic unit, make pneumatic unit can realize the on-off control to the connection between different pipelines, set up like this, can take place earthquake or other calamity in-process in the outside, realize the on-off control to the pipeline through aerodynamic force, avoid using electric power as driving source, improve whole pipeline emergency device's reliability and security, effectively overcome the defect that prior art has the potential safety hazard in the gas blocking structure of the electric power of gas pipe 42 line in calamity in-process such as earthquake.

The pneumatic unit comprises a pneumatic assembly 4 and a shutter assembly 5.

The pneumatic component 4 is connected with the vibration detection unit 6, and the vibration detection unit 6 capable of gas pressure can act on the pneumatic component 4 according to the state of the vibration detection unit 6, so that the matching mode of the vibration detection unit and the brake component 5 is changed.

The shutter assembly 5 is disposed on the upper side of the connector 3 and includes a shutter plate 52 in the shape of a sheet, and the shutter plate 52 is disposed perpendicular to the flow direction of the gas or liquid material in the pipeline. The gate plate 52 is provided with a communicating position which is matched with the pneumatic assembly 4, is in limit connection and is arranged at intervals with the connecting piece 3, so that the materials of the first pipeline 1 and the second pipeline 2 smoothly flow; and changing the state of the pneumatic assembly 4 by the vibration detecting unit 6, so that the pneumatic assembly 4 and the shutter plate 52 are separated from and away from each other, and the shutter plate 52 is placed in a blocking position in the connecting body 32, which prevents the first pipeline 1 and the second pipeline 2 from communicating.

The shutter assembly 5 further includes a shutter box 51, the shutter box 51 is connected with the connection body 32 and is disposed at an upper side of the connection body 32, an accommodating space 511 extending in a height direction is provided inside the shutter box 51, the accommodating space 511 is communicated with an inside of the connection body 32 and the first pipeline 1 and the second pipeline 2, a shutter plate 52 is provided inside the accommodating space 511, and in this embodiment, in order to avoid leakage of materials, an outer wall of the shutter plate 52 is in sealing abutment with an inner wall of the shutter box 51, and the shutter plate 52 can slide along the inner wall of the shutter box 51.

Specifically, the sidewall of the shutter plate 52 is provided with a first engaging portion 521 and a lateral opening, and is connected to the pneumatic assembly 4 through the lateral opening, so that the pneumatic assembly 4 extends to the accommodating space 511, and is engaged with the first engaging portion 521 in the extending direction of the lateral opening.

The pneumatic assembly 4 comprises: a gas containing body 41 and a trigger.

The gas containing body 41 is box-shaped and arranged outside the switch box 51, and can contain high-pressure gas, a connecting channel 411 is arranged on one side, facing the switch box 51, of the gas containing body 41, the connecting channel 411 is communicated with the containing space 511 through a lateral opening, in this embodiment, the lateral opening and the connecting channel 411 are integrally formed, a piston piece 412 is arranged on the connecting channel 411, a second clamping part 413 is arranged on one end, facing the containing space 511, of the piston piece 412, and the second clamping part 413 can be clamped and connected with the first clamping part 521 on the switch plate 52 in the extending direction of the lateral opening. In this embodiment, the first engaging portion 521 is preferably a chute, the first engaging portion 521 is preferably a sloping plate, the structure is simple and easy to implement, and the first engaging portion 521 and the second engaging portion 413 may be square grooves, square plates, clamping holes, clamping blocks, and the like, respectively, as alternative embodiments.

The trigger piece is communicated with the gas containing main body 41 and is connected with the vibration detection unit 6, and is suitable for exhausting the gas in the gas containing main body 41 under the action of the vibration detection unit 6.

The trigger piece includes: a trachea 42 and a balloon assembly 43.

In this embodiment, the air tube 42 is hose-shaped, one end of which is communicated with the air accommodating body 41, and a threaded sleeve is arranged on the outer side of the joint in a surrounding manner.

The air sac assembly 43 comprises an air sac member 431 and a needle member 432, in this embodiment, the air sac member 431 is arranged in a bubble shape, one side of the air sac member 431 is detachably arranged at the other end of the air pipe 42 away from the air accommodating main body 41, in this embodiment, a joint is arranged at the other end of the air pipe 42, a threaded sleeve is arranged on the outer side of the joint in a ring mode, a threaded pipe communicated with the inside of the air sac member 431 is arranged at one side of the air sac member 431, and the air sac member 431 is in threaded connection with the threaded sleeve on the air pipe 42 to achieve communication. The blunt end of the needle 432 is connected to the shock detecting unit 6, and the sharp end is disposed toward the balloon 431, with an emergency state in which the needle is moved toward the balloon 431 by the shock detecting unit 6, contacting and breaking the balloon 431.

The air sac assembly 43 connected with the air accommodating main body 41 through the air pipe 42 is arranged, the air sac assembly 43 comprises the air sac member 431 and the needle member 432, the needle member 432 moves towards the air sac member 431 and punctures the air sac member 431 in the vibration process, the internal pressure of the air accommodating main body 41 is discharged, the piston member 412 in the air accommodating main body 41 is far away from the accommodating space 511, the first clamping part 521 and the second clamping part 413 are separated from the limiting position, the brake plate 52 is separated from the communicating position and moves to the blocking position, the blocking of a pipeline is realized, and the air sac assembly 43 can change the mechanical property by utilizing the air pressure to further realize the switching action of a mechanical structure.

The air bag assembly 43 further comprises a partition 433, the partition 433 is arranged on the vibration detection unit 6 and is provided with a needle passing hole 434, the air bag member 431 and the needle member 432 are respectively arranged on two sides of the needle passing hole 434, a needle passing hole limiting member 435 is arranged on one side, facing the air bag member 431, of the needle passing hole 434, the needle passing hole limiting member 435 is specifically a mounting nut and is in threaded connection with a threaded head arranged on the other side of the air bag member 431, and in an emergency state, the needle member 432 can penetrate through the needle passing hole 434 and the air bag member 431. By providing the barrier 433, the needle 432 can accurately trigger the balloon 431 during vibration.

The vibration detection unit 6 includes: a housing 61 and a third magnetic member 64.

The casing 61 is arranged on the side wall of the gate box 51, a containing cavity is arranged in the casing, a first magnetic piece 62 and a second magnetic piece 63 which are arranged at intervals along the height direction and respectively fixed on the top wall and the bottom wall of the containing cavity are contained, an outlet 611 is arranged on the outer wall of the casing 61 between the two magnetic pieces, a partition 433 of the air bag component 43 is arranged on the outer wall of the casing 61 at the position adjacent to the outlet 611, and the partition 433 is arranged on one side of the outlet 611 close to the second magnetic piece 63;

the third magnetic member 64 is disposed in the housing 61 and between the first magnetic member 62 and the second magnetic member 63, can be suspended in the housing 61 under the action of mutually exclusive magnetic force, and is adapted to reciprocate between the first magnetic member 62 and the second magnetic member 63 under external vibration, and has one end of the third magnetic member 64 protruding outside the outlet 611 and provided with the needle 432 thereon.

Through setting up first magnetic part 62 and second magnetic part 63 in shell 61 to set up third magnetic part 64 between two magnetic parts, realize suspending through magnetic force, when receiving external vibrations, third magnetic part 64 can take place reciprocating motion at first magnetic part 62 and second magnetic part 63, set up needle 432 simultaneously on third magnetic part 64, needle 432 realizes the destruction to air bag 431 with air bag 431 in the displacement in-process, and then realize the drive to brake plate 52, set up like this, through the mode of magnetic suspension, realize the detection to vibrations and with hold the linkage of gas main part 41, not only can realize vibrations detection need not the electric power energy supply, further improve pipeline emergency device holistic reliability and security.

The gate box 51 is further provided with a rod passing opening 512 on the side far away from the connecting piece 3, the gate plate 52 is further provided with a slide rod 522, and the slide rod 522 passes through the rod passing opening 512 and extends to the outer side of the gate box 51. As an alternative embodiment, the slide rod 522 and the rod passing port 512 may not be provided, and the entire or upper end portion of the shutter box 51 may be provided in a transparent manner.

Through set up the slide bar 522 of connecting the brake pedal 52 and supply the pole mouth 512 of crossing that slide bar 522 passed on the box 51 for slide bar 522 goes up and down corresponding brake pedal 52 position, and the external personnel of being convenient for observe the position of brake pedal 52 according to the length that slide bar 522 stretched out pole mouth 512, also be convenient for when resume pipeline intercommunication, carry slide bar 522 through external force, and then reset brake pedal 52.

The shutter assembly 5 further includes a warning member 53, in particular a warning ball coated with a distinct color or a fluorescent color, the warning member 53 being provided on a shaft of the slide rod 522 extending to the outside of the shutter box 51, in this embodiment, at the top end of the shaft, for indicating the position of the shutter plate 52. The setting of warning piece 53 is convenient for the user to carry out quick and effective observation to the extension length of slide rod 522, improves warning and suggestion dynamics to the user, further improves the security performance.

The pipeline emergency device further comprises a displacement detection unit, wherein the displacement detection unit comprises a sensing piece 7 and a plurality of sensing units 8. The sensing piece 7 is in a rod shape or a plate shape, is arranged on the outer wall of the gate box 51, and protrudes from the gate box 51 along the height direction; the sensing units 8 are arranged on the sensing piece 7 at intervals along the height direction, and can detect the position of the warning piece 53 or the sliding rod piece 522. In this embodiment, the sensing unit 8 is specifically a proximity switch, two sensing units are provided, and a single sensing unit or a plurality of sensing units may be provided. As an alternative embodiment, the warning member 53 may not be provided, and only the slide rod member 522 may be detected.

In addition, at least one sealing ring 414, in this embodiment two sealing rings 414 are disposed in the connecting channel 411 at a side away from the accommodating space 511, and the piston member 412 is spaced apart from the gas accommodating body 41. The sealing ring 414 can improve the air tightness in the air containing main body 41, avoid air leakage and influence the internal pressure, and can block the displacement of the piston element 412, so that the piston element 412 in the connecting channel 411 can move to the connecting channel 411 in the air containing space under the action of negative pressure, and the pneumatic assembly 4 can not be linked with the brake assembly 5.

The gas containing main body 41 is further provided with an inflating member 415 which is a pipe fitting, and the inflating member 415 is provided with a one-way valve 416, so that a user can inflate the gas containing main body 41 conveniently.

The air pressure meter 417 is also arranged on the air containing body 41, so that the air pressure in the air containing body 41 can be detected, and the air containing body is convenient for the user to identify. Further, the gas containing body 41 is further provided with a pressure sensing unit 418.

The pipeline emergency device also comprises a controller which can be plc or singlechip, and the like, is respectively in wireless communication connection with the pressure sensing unit 418 and the sensing unit 8, and is also connected with a circuit breaking unit which automatically cuts off the power supply when detecting pressure abnormality. As an alternative embodiment, none of the controller, the pressure sensing unit 418, the sensing member 7 and the sensing unit 8 may be provided, further increasing safety.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.

Claims

1. A pipeline emergency device, comprising:

a first pipeline (1);

a second pipeline (2) arranged adjacent to the first pipeline (1);

a connecting piece (3) arranged at the end part between the first pipeline (1) and the second pipeline (2) and suitable for connecting the first pipeline (1) and the second pipeline (2);

the pneumatic switch piece is arranged on the connecting piece (3) and comprises a pneumatic unit and a vibration detection unit (6) which are connected, and the vibration detection unit (6) is suitable for detecting external vibration;

the pneumatic unit includes:

the pneumatic assembly (4) comprises a gas containing main body (41) and a trigger piece, wherein the gas containing main body (41) is suitable for containing high-pressure gas, and the trigger piece is communicated with the gas containing main body (41) and is connected with the vibration detection unit (6) and is suitable for discharging the gas in the gas containing main body (41) under the action of the vibration detection unit (6);

the brake assembly (5) is arranged on the connecting piece (3) and comprises a brake plate (52), the brake plate (52) is provided with a communication position which is connected with the pneumatic assembly (4) and is arranged at intervals with the connecting piece (3) and is in an opening state which is communicated with the first pipeline (1) and the second pipeline (2), and the brake plate (52) is also provided with a blocking position which is far away from the pneumatic assembly (4) under the action of the vibration detection unit (6) and is arranged in the connecting piece (3) and is in a closing state which cuts off the first pipeline (1) and the second pipeline (2);

the trigger includes:

a gas pipe (42) which is communicated with the gas containing main body (41);

an air sac assembly (43) comprising an air sac member (431) and a needle member (432), wherein the air sac member (431) is connected with the end part of the air pipe (42) far away from the air accommodating main body (41), the needle member (432) is connected with the vibration detection unit (6), moves towards the air sac member (431) under the action of the vibration detection unit (6), and breaks an emergency state of the air sac member (431);

the vibration detection unit (6) includes:

a housing (61) provided on a shutter case (51) of the shutter assembly (5), and having a first magnetic member (62) and a second magnetic member (63) provided therein at an interval, and having a lead-out port (611) provided therein;

the third magnetic piece (64) is arranged in the shell (61) and is arranged between the first magnetic piece (62) and the second magnetic piece (63), is suspended in the shell (61) under the action of magnetic force and is suitable for moving between the first magnetic piece (62) and the second magnetic piece (63) under the action of external vibration, and one end of the third magnetic piece (64) extends out of the outer side of the lead-out port (611) and is provided with the needle piece (432).

2. A pipeline emergency device according to claim 1, characterized in that the shutter assembly (5) further comprises:

the gate box (51) is arranged on the connecting piece (3), an accommodating space (511) is arranged in the gate box, the accommodating space (511) extends along the height direction, is respectively communicated with the first pipeline (1) and the second pipeline (2), and is internally provided with the gate plate (52);

the brake plate (52) is provided with a first clamping part (521), the brake box (51) is connected and provided with the pneumatic assembly (4), and the pneumatic assembly (4) extends to the accommodating space (511) and is clamped and connected with the first clamping part (521) at the communication position.

3. A pipeline emergency device according to claim 2, wherein,

the gas containing main body (41) is arranged on the outer side of the switch box (51), a connecting channel (411) is arranged on one side, facing the switch box (51), of the gas containing main body (41), the connecting channel (411) is communicated with the containing space (511), a piston piece (412) is arranged on the connecting channel, a second clamping part (413) is arranged on the piston piece (412), and the second clamping part (413) is suitable for being clamped and connected with a first clamping part (521) on the switch plate (52) at a communicating position.

4. A line emergency device according to claim 3, characterized in that the balloon member (431) is detachably arranged at the end of the gas pipe (42) remote from the gas containing body (41).

5. A line emergency device according to claim 4, characterized in that the airbag assembly (43) further comprises:

baffle (433) are provided with on shock detection unit (6), are provided with needle mouth (434) on it, gasbag spare (431) and needle (432) divide to establish needle mouth (434) both sides are crossed, needle mouth (434) orientation one side of gasbag spare (431) is provided with needle mouth locating part (435), needle mouth locating part (435) with gasbag spare (431) detachably connects the setting under the emergency, needle spare (432) are suitable for to pass needle mouth (434) and penetrate gasbag spare (431).

6. A line emergency device according to claim 5, characterized in that the partition (433) is arranged on the outer wall of the housing (61) adjacent to the outlet opening (611).

7. A pipeline emergency device according to any of claims 2-6, characterized in that the side of the box (51) remote from the connector (3) is further provided with a through-rod opening (512), the gate plate (52) is further provided with a slide rod member (522), and the slide rod member (522) passes through the through-rod opening (512) and extends outside the box (51).

8. A line emergency device according to claim 7, characterized in that the shutter assembly (5) further comprises an alarm (53), the alarm (53) being arranged on a shaft of the slide rod (522) extending outside the shutter box (51), adapted to indicate the position of the shutter plate (52).

9. The line emergency device of claim 8, further comprising a displacement detection unit comprising:

the induction piece (7) is arranged on the outer wall of the switch box (51) and protrudes out of the switch box (51) along the height direction;

the sensing units (8) are arranged on the sensing piece (7) at intervals along the height direction and are suitable for detecting the positions of the warning piece (53) or the sliding rod piece (522).

10. A line emergency device according to any one of claims 3-6, characterized in that at least one sealing ring (414) is built into the connection channel (411), said sealing ring (414) being arranged in said connection channel (411) on the side remote from said receiving space (511).

11. A line emergency device according to any of claims 3-6, 8-9, characterized in that the gas containing body is further provided with an inflatable member (415), said inflatable member (415) being provided with a non-return valve (416).

12. A line emergency device according to claim 9, characterized in that a barometer (417) is also provided on the gas containing body, adapted to detect the air pressure in the gas containing body.

13. Line emergency device according to claim 12, characterized in that the gas containing body is further provided with a pressure sensing unit (418).

14. The line emergency device according to claim 13, further comprising a controller in communication with the pressure sensing unit (418), the sensing unit (8), respectively, the controller being further connected with a circuit breaking unit.

15. A line emergency device according to any one of claims 1-6, 8-9, 13-14, characterized in that the connection (3) comprises:

the pipeline flanges (31) are respectively arranged at the end parts of the first pipeline (1) and the second pipeline (2);

the connecting body (32) is provided with mounting flanges (33) on two sides of the connecting body respectively, the mounting flanges (33) are in sealing connection with the pipeline flanges (31), and the pneumatic switch piece is arranged on the connecting body (32).