阅读说明：本技术 一种化工管道的安全防护罩 (Safety protection cover for chemical pipeline ) 是由 冯君臣 于 2021-09-13 设计创作，主要内容包括：本发明公开了一种化工管道的安全防护罩,包括：化工管道；可带压拆卸式密封组件,设置在化工管道的表面且用于带压更换密封件,所述可带压拆卸式密封组件包括密封条、限位管和第一定位圈,所述密封条活动设置在限位管的内壁,所述密封条的中部固定嵌入有金属软管。本发明通过将新的密封条一端的连接管与损坏的密封条一端的连接头完成卡接,将损坏密封条位于连接管的一端向上拔出,并使得损坏的密封条带动新的密封条移动直至新的密封条完全替代损坏的密封条,此时通过连接管向新的密封条内部金属软管注入气体,使得新的密封条能够膨胀并在化工管道的连接处起到密封作用,从而可实现带压更换密封件的目的。(The invention discloses a safety shield for chemical pipelines, which comprises: chemical pipelines; can take area to dismantle formula seal assembly, set up on the surface of chemical pipeline and be used for taking area to change the sealing member, can take area to dismantle formula seal assembly includes sealing strip, spacing pipe and first locating ring, the sealing strip activity sets up the inner wall at spacing pipe, the fixed embedding in middle part of sealing strip has metal collapsible tube. The connecting pipe at one end of the new sealing strip is clamped with the connector at one end of the damaged sealing strip, which is positioned at the connecting pipe, is pulled out upwards, the damaged sealing strip drives the new sealing strip to move until the new sealing strip completely replaces the damaged sealing strip, and at the moment, gas is injected into the metal hose in the new sealing strip through the connecting pipe, so that the new sealing strip can expand and play a role in sealing the connecting part of the chemical pipeline, and the aim of replacing the sealing element under pressure can be fulfilled.)

1. The utility model provides a safety protection casing of chemical pipeline which characterized in that: the method comprises the following steps:

a chemical pipeline (1);

the pressure-bearing detachable sealing assembly (2) is arranged on the surface of a chemical pipeline (1) and used for pressure-bearing replacement of a sealing element, the pressure-bearing detachable sealing assembly (2) comprises a sealing strip (201), a limiting pipe (202) and a first positioning ring (210), the sealing strip (201) is movably arranged on the inner wall of the limiting pipe (202), a metal hose (203) is fixedly embedded in the middle of the sealing strip (201), two ends of the metal hose (203) are respectively and fixedly provided with a connector (207) and a connecting pipe (209), one end, away from the position of the metal hose (203), of the connector (207) and the connecting pipe (209) is respectively provided with a matched clamping interface, and two ends of the sealing strip (201) are movably penetrated and extend to the outside of the first positioning ring (210);

the early warning assembly (3) is arranged in the middle of the first positioning ring (210) and is used for detecting and transmitting pressure information inside the first positioning ring (210);

the anti-leakage device comprises an anti-leakage assembly (4), a first positioning ring (210), a second positioning ring (4), a third positioning ring (43), a connecting belt (411), a sealing ring (412) and a rubber air bag (413), wherein the anti-leakage assembly (4) is arranged in the middle of the first positioning ring (210) and is used for strengthening sealing, collecting leaked gas and injecting protective gas;

the first protective cover (5) and the second protective cover (6) are arranged on the surface of the first positioning ring (210) and used for protecting the belt pressing detachable sealing assembly (2), the early warning assembly (3) and the leakage preventing assembly (4).

2. The safety shield of the chemical pipeline according to claim 1, wherein: the number of the chemical pipelines (1) is two, the sealing strip (201) and the limiting pipe (202) are movably arranged on the surface of the connecting position of the two chemical pipelines (1), the middle part of the surface of the sealing strip (201) is of an arc-shaped structure, the size of the arc-shaped structure on the surface of the sealing strip (201) is matched with the size of the inner wall of the sealing strip (201), the middle part of one end of the connecting pipe (209) corresponding to the position of the metal hose (203) is provided with a one-way valve, one end of the sealing strip (201) corresponding to the position of the connector (207) is provided with a first groove (206), one end of the sealing strip (201) corresponding to the position of the connecting pipe (209) is provided with a second groove (208), the surface of the connecting pipe (209) is provided with threads, the sealing strip (201) is a rubber material component, one end, far away from the first groove (206), of the sealing strip (201) is of an arc-shaped structure.

3. The safety shield of the chemical pipeline according to claim 1, wherein: a plurality of communicating holes (204) are formed in the middle of the metal hose (203) and the inside of the sealing strip (201), a first communicating cavity (205) is formed in the inside of the sealing strip (201), and the inside of the communicating holes (204) is communicated with the inside of the metal hose (203) and the inside of the first communicating cavity (205) respectively.

4. The safety shield of the chemical pipeline according to claim 1, wherein: the inner wall fixedly connected with of first locating ring (210) seals piece (211), the bottom fixedly connected with of sealed piece (211) seals gasbag (212), and the surface of sealed piece (211) and sealed gasbag (212) closely laminates with the both ends of sealing strip (201) respectively, the bottom of sealed gasbag (212) closely laminates with the surface of chemical pipeline (1), movable groove (214) has been seted up to the inside of sealed piece (211), the top threaded connection of first locating ring (210) has first threaded rod (213), and the activity of first threaded rod (213) runs through and extends to the inside of movable groove (214), the bottom of first threaded rod (213) is connected with movable block (215) through the bearing rotation, and movable block (215) swing joint is at the inner wall of movable groove (214), the bottom fixedly connected with bellows (216) of movable block (215), bellows (216) fixed connection is at the inner wall of activity groove (214), second intercommunication chamber (217) have all been seted up at the bottom of sealed piece (211) and the middle part of sealed gasbag (212), the inside in second intercommunication chamber (217) is linked together with the inside of bellows (216), first mount (229) of difference fixedly connected with are equallyd divide to the both ends of spacing pipe (202), and first mount (229) fixed connection is on the surface of sealed piece (211), the diameter of spacing pipe (202) inner wall place circle is greater than the diameter on chemical pipeline (1) surface.

5. The safety shield of the chemical pipeline according to claim 1, wherein: the surface of one end of the limiting pipe (202) is movably connected with a driving block (218), the surface of the driving block (218) is provided with a worm gear groove (219), the inner wall of the worm gear groove (219) is meshed with a worm gear rod (220), the middle part of the worm gear rod (220) is fixedly connected with a transmission rod (221), two ends of the transmission rod (221) are rotatably connected with a fixed shell (222) through bearings, the fixed shell (222) is fixedly embedded in the middle part of the first positioning ring (210), the top part of the transmission rod (221) is fixedly connected with a driving head (223), the inner wall of the first positioning ring (210) is fixedly connected with a fixed block (228), the surface of the fixed block (228) is tightly attached to one end of the sealing strip (201), the surface of the driving block (218) is fixedly connected with a limiting strip (226), and the inner wall of the first positioning ring (210) corresponding to the position of the limiting strip (226) is provided with a limiting groove (227), and the inner wall of the limit groove (227) is movably connected with the surface of the limit strip (226).

6. The safety shield of the chemical pipeline according to claim 1, wherein: the quantity of first protection casing (5) is two, the one end of two first protection casings (5) opposite faces is articulated through the articulated shaft, the quantity of second protection casing (6) is four, and per two second protection casings (6) are a set of, and is two sets of the one end of second protection casing (6) opposite face is all articulated through the articulated shaft, first protection casing (5) are located position between two sets of second protection casings (6), and articulated shaft of first protection casing (5) and second protection casing (6) sharing.

7. The safety shield of the chemical pipeline according to claim 1, wherein: the inner wall of the first protective cover (5) is fixedly connected with a positioning rod (224), the surface of the positioning rod (224) is movably sleeved with a positioning seat (225), the positioning seat (225) is fixedly connected to the surface of the first positioning ring (210), the positioning rod (224) and the positioning seat (225) are both of arc structures, the arc centers of the positioning rod (224) and the positioning seat (225) are located at the same point as the circle center of a hinged shaft between the two first protective covers (5), the front side ends of the first protective cover (5) and the second protective cover (6) are respectively and fixedly connected with a mounting plate (7), the two adjacent mounting plates (7) are respectively and fixedly connected through bolts, the two ends of the second protective cover (6) are respectively and fixedly connected with a second threaded rod (8) in a threaded manner, the surface of the chemical pipeline (1) corresponding to the second threaded rod (8) is fixedly connected with a second positioning ring (9), and second position circle (9) swing joint is in the one end of second threaded rod (8), second position circle (9) are located the inside of second protection casing (6), the inner wall fixedly connected with limiting plate (10) of the corresponding first position circle (210) both ends position of second protection casing (6).

8. The safety shield of the chemical pipeline according to claim 1, wherein: early warning subassembly (3) are including control box (301) and pressure sensor (302), control box (301) fixed connection is in the middle part of first retainer plate (210), pressure sensor (302) fixed connection is at the inner wall of first retainer plate (210) and control box (301), the internal integration of control box (301) has wireless transmission module.

9. The safety shield of the chemical pipeline according to claim 1, wherein: the gas circulation piece I (41), the gas circulation piece II (42) and the gas circulation piece III (43) respectively comprise a first threaded pipe (401), the first threaded pipe (401) is fixedly connected to the middle of the first positioning ring (210), the inner wall of the first threaded pipe (401) is in threaded connection with a threaded ring (402), the middle of the threaded ring (402) is fixedly connected with a second threaded pipe (403), the second threaded pipe (403) is of a hollow structure in the middle, the bottom of the second threaded pipe (403) is fixedly connected with a top block (404), the bottom of the first threaded pipe (401) is fixedly connected with an accommodating seat (405), the bottom of the accommodating seat (405) is fixedly connected with a rubber pad (407), the surface of the rubber pad (407) is tightly attached with a ball (406), the bottom of the ball (406) is fixedly connected with a damping spring (408), and the bottom of the damping spring (408) is fixedly connected with a second fixing frame (409), and the second fixing frame (409) is fixedly connected to the bottom of the first threaded pipe (401), and the top block (404) is positioned right above the ball (406).

10. The safety shield of the chemical pipeline according to claim 1, wherein: the connecting belt (411) is fixedly connected with the inner wall of the first positioning ring (210) corresponding to the first position (41) of the gas circulating piece, and the sealing ring (412) is fixedly connected with one end of the connecting band (411) far away from the position of the first positioning ring (210), the sealing ring (412) is tightly attached to the surface of the chemical pipeline (1), the inner wall of the first positioning ring (210) corresponding to the connecting belt (411) is fixedly connected with a partition plate (410), the rubber air bags (413) are fixedly connected to the inner wall of the first positioning ring (210) at the position corresponding to the second gas circulating piece (42), the number of the rubber air bags (413) is two, and the middle parts of the two rubber air bags (413) are fixedly connected with a communicating pipe (414), the communicating pipe (414) is fixedly connected with the inner wall of the first positioning ring (210), and the inside of the communication pipe (414) is communicated with the inside of the rubber bladder (413).

Technical Field

The invention relates to the technical field of chemical equipment, in particular to a safety protection cover for a chemical pipeline.

Background

At present in chemical gas's pipeline transportation, because chemical pipeline's junction often exposes in the air to the junction that leads to chemical pipeline suffers to corrode, the seam crossing of chemical pipeline can be followed to poisonous inflammable chemical gas reveals away, so generally adopts the protection casing to protect chemical pipeline's junction.

But prior art when the in-service use, sealing member in the protection casing can cause sealing member irreversible deformation because of long-time extrusion use, and then makes the chemical pipeline probably produce when leaking in the junction, need stop the transport of chemical pipeline, then changes seal assembly to leaking the position, influences chemical industry raw materials conveying efficiency again.

Disclosure of Invention

The invention aims to provide a safety protection cover for a chemical pipeline, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the method comprises the following steps:

chemical pipelines;

the belt pressing detachable sealing assembly is arranged on the surface of a chemical pipeline and used for replacing a sealing element in a belt pressing mode, and comprises a sealing strip, a limiting pipe and a first positioning ring, wherein the sealing strip is movably arranged on the inner wall of the limiting pipe, a metal hose is fixedly embedded in the middle of the sealing strip, two ends of the metal hose are respectively and fixedly provided with a connector and a connecting pipe, one end, far away from the metal hose, of each connector and one end, far away from the metal hose, of each connecting pipe are respectively provided with a matched clamping port, and two ends of the sealing strip are movably penetrated through and extend to the outside of the first positioning ring;

the early warning assembly is arranged in the middle of the first positioning ring and is used for detecting and transmitting the internal pressure information of the first positioning ring;

the anti-leakage assembly is arranged in the middle of the first positioning ring and used for strengthening sealing, collecting leaked gas and injecting protective gas, the anti-leakage assembly comprises a first gas circulation piece, a second gas circulation piece and a third gas circulation piece which are used for controlling gas circulation, and the anti-leakage assembly further comprises a connecting belt, a sealing ring and a rubber airbag;

the first protection cover and the second protection cover are arranged on the surface of the first positioning ring and are used for protecting the belt-pressing detachable sealing assembly, the early warning assembly and the leakage-preventing assembly.

Preferably, the quantity of chemical industry pipeline is two, the equal activity of sealing strip and spacing pipe sets up the surface at two chemical industry pipeline phase connection positions, the middle part on sealing strip surface is the arc structure, and the inner wall size looks adaptation of the size of the arc structure of sealing strip surface and sealing strip, the one end middle part of the corresponding metal collapsible tube position of connecting pipe is provided with the check valve, first recess has been seted up to the one end of the corresponding connector position of sealing strip, the second recess has been seted up to the one end of the corresponding connecting pipe position of sealing strip, the surface of connecting pipe is provided with the screw thread, the sealing strip is the rubber materials component, the one end that first groove position was kept away from to the sealing strip is the arc structure.

Preferably, a plurality of intercommunicating pores have been all seted up to metal collapsible tube's middle part and the inside of sealing strip, first intercommunication chamber has been seted up to the inside of sealing strip, and the inside of intercommunicating pore is linked together with metal collapsible tube and the inside in first intercommunication chamber respectively.

Preferably, the inner wall of the first positioning ring is fixedly connected with a sealing block, the bottom of the sealing block is fixedly connected with a sealing air bag, the surfaces of the sealing block and the sealing air bag are respectively tightly attached to the two ends of the sealing strip, the bottom of the sealing air bag is tightly attached to the surface of the chemical pipeline, a movable groove is formed in the sealing block, a first threaded rod is in threaded connection with the top of the first positioning ring and movably penetrates through and extends to the inside of the movable groove, the bottom of the first threaded rod is rotatably connected with a movable block through a bearing, the movable block is movably connected to the inner wall of the movable groove, a corrugated pipe is fixedly connected to the bottom of the movable block and fixedly connected to the inner wall of the movable groove, second communicating cavities are formed in the bottom of the sealing block and the middle of the sealing air bag, and the inside of each second communicating cavity is communicated with the inside of the corrugated pipe, the two ends of the limiting pipe are respectively and fixedly connected with a first fixing frame, the first fixing frames are fixedly connected to the surface of the sealing block, and the diameter of a circle where the inner wall of the limiting pipe is located is larger than that of the surface of the chemical pipeline.

Preferably, the surface of one end of the limiting pipe is movably connected with a driving block, a worm gear groove is formed in the surface of the driving block, a worm gear rod is meshed with the inner wall of the worm gear groove, a transmission rod is fixedly connected to the middle of the worm gear rod, two ends of the transmission rod are rotatably connected with fixing shells through bearings, the fixing shells are fixedly embedded into the middle of the first positioning ring, a driving head is fixedly connected to the top of the transmission rod, a fixing block is fixedly connected to the inner wall of the first positioning ring, the surface of the fixing block is tightly attached to one end of the sealing strip, a limiting strip is fixedly connected to the surface of the driving block, a limiting groove is formed in the inner wall of the position, corresponding to the limiting strip, of the first positioning ring, and the inner wall of the limiting groove is movably connected with the surface of the limiting strip.

Preferably, the quantity of first protection casing is two, the one end of two first protection casings opposite faces is passed through the hinge shaft and is articulated, the quantity of second protection casing is four, and per two second protection casings are a set of, and is two sets of the one end of second protection casing opposite face is all articulated through the hinge shaft, first protection casing is located position between two sets of second protection casings, and a hinge shaft of first protection casing and second protection casing sharing.

Preferably, the inner wall of the first protective cover is fixedly connected with a positioning rod, the surface of the positioning rod is movably sleeved with a positioning seat, the positioning seat is fixedly connected on the surface of the first positioning ring, the positioning rod and the positioning seat are both arc-shaped structures, the arc centers of the positioning rod and the positioning seat and the circle center of the articulated shaft between the two first protective covers are positioned at the same point, the front side ends of the first protective cover and the second protective cover are respectively fixedly connected with a mounting plate, and the upper and lower adjacent mounting plates are fixedly connected by bolts, the two ends of the second protective cover are respectively in threaded connection with a second threaded rod, the surface of the chemical pipeline corresponding to the position of the second threaded rod is fixedly connected with a second positioning ring, the second positioning ring is movably connected at one end of the second threaded rod and is positioned in the second protective cover, and the inner walls of the second protective cover corresponding to the two ends of the first positioning ring are fixedly connected with limiting plates.

Preferably, the early warning subassembly includes control box and pressure sensor, control box fixed connection is in the middle part of first locating circle, pressure sensor fixed connection is at the inner wall of first locating circle and control box, the internal integration of control box has wireless transmission module.

Preferably, the first gas circulation piece, the second gas circulation piece and the third gas circulation piece all include first screwed pipe, and first screwed pipe fixed connection is at the middle part of first retainer ring, the inner wall threaded connection of first screwed pipe has the screw ring, the middle part fixedly connected with second screwed pipe of screw ring, the second screwed pipe is middle part hollow structure, the bottom fixedly connected with kicking block of second screwed pipe, the bottom fixedly connected with of first screwed pipe holds the seat, the bottom fixedly connected with rubber pad that holds the seat, and the surface of rubber pad is closely laminated and has the ball, the bottom fixedly connected with damping spring of ball, damping spring's bottom fixedly connected with second mount, and second mount fixed connection is in the bottom of first screwed pipe, the kicking block is located directly over the ball.

Preferably, connecting band fixed connection is at the inner wall of the corresponding gas circulation piece one position of first locating ring, and sealing washer fixed connection keeps away from the one end of first locating ring position at the connecting band, the sealing washer closely laminates on the surface of chemical pipeline, the inner wall fixedly connected with baffle of the corresponding connecting band position of first locating ring, rubber gasbag fixed connection is at the inner wall of the corresponding gas circulation piece two positions of first locating ring, rubber gasbag's quantity is two, and the equal fixedly connected with communicating pipe in middle part of two rubber gasbags, communicating pipe fixed connection is at the inner wall of first locating ring, and the inside of communicating pipe is linked together with rubber gasbag's inside.

Compared with the prior art, the invention has the beneficial effects that:

1. the connecting pipe at one end of the new sealing strip is clamped with the connector at one end of the damaged sealing strip, which is positioned at the connecting pipe, is pulled out upwards, the damaged sealing strip drives the new sealing strip to move until the new sealing strip completely replaces the damaged sealing strip, and at the moment, gas is injected into the metal hose in the new sealing strip through the connecting pipe, so that the new sealing strip can expand and play a role in sealing the joint of the chemical pipeline, and the purpose of replacing the sealing element under pressure can be realized;

2. the invention also discloses a control box for detecting the air pressure change in the first positioning ring and remotely monitoring the air pressure change in the first positioning ring through a wireless transmission module in the control box, namely when the air pressure in the first positioning ring is reduced, the sealing formed by the sealing strip, the limiting tube, the sealing block and the sealing airbag has defects or the sealing at the position of the sealing ring has defects, at the moment, gas is simultaneously injected into the connecting band and the metal hose through the first gas circulating piece and the connecting tube, the sealing formed by the sealing strip, the limiting tube, the sealing block and the sealing airbag and the sealing at the position of the sealing ring are enhanced, when the air pressure in the first positioning ring is increased, the sealing formed by the sealing strip, the limiting tube, the sealing block and the sealing airbag has defects, and the condition of gas leakage in the pipeline of a chemical engineering is generated, at the moment, two first protective covers are opened, the gas is injected into the inside of the two-way rubber airbag through the gas circulation piece, and meanwhile, the gas leaked from the inside of the first positioning ring is extracted and collected through the gas circulation piece, so that the gas leaked from the inside of the first positioning ring is prevented from causing environmental pollution until the rubber airbag expands and is stained with the inner space of the first positioning ring, and therefore the gas leaked from the inside of the first positioning ring can be completely collected.

Drawings

FIG. 1 is a side sectional view of the whole structure of a safety shield of a chemical pipeline according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 of the safety shield of the chemical pipeline according to the present invention;

FIG. 3 is a schematic view of the connection between the joint of the safety shield and the connection pipe of the chemical pipeline according to the present invention;

FIG. 4 is a side view of a first positioning ring structure of a safety shield of a chemical pipeline according to the present invention;

FIG. 5 is a front sectional view of the whole structure of the safety shield of the chemical pipeline according to the present invention;

FIG. 6 is a partial front sectional view of the whole structure of the safety shield of the chemical pipeline according to the present invention;

FIG. 7 is a front cross-sectional view of a first threaded pipe structure of a safety shield of a chemical pipeline according to the present invention;

fig. 8 is a front view of the whole structure of the safety protection cover of the chemical pipeline.

In the figure: 1. chemical pipelines; 2. the sealing component can be disassembled under pressure; 201. a sealing strip; 202. a limiting pipe; 203. a metal hose; 204. a communicating hole; 205. a first communicating chamber; 206. a first groove; 207. a connector; 208. a second groove; 209. a connecting pipe; 210. a first positioning ring; 211. a sealing block; 212. sealing the air bag; 213. a first threaded rod; 214. a movable groove; 215. a movable block; 216. a bellows; 217. a second communicating chamber; 218. a drive block; 219. a worm gear groove; 220. a worm gear; 221. a transmission rod; 222. a stationary case; 223. a drive head; 224. positioning a rod; 225. positioning seats; 226. a limiting strip; 227. a limiting groove; 228. a fixed block; 229. a first fixing frame; 3. an early warning component; 301. a control box; 302. a pressure sensor; 4. a leak-proof assembly; 41. a first gas circulation piece; 42. a second gas circulation piece; 43. a third gas circulation piece; 401. a first threaded pipe; 402. a thread ring; 403. a second threaded pipe; 404. a top block; 405. an accommodating seat; 406. a ball bearing; 407. a rubber pad; 408. a damping spring; 409. a second fixing frame; 410. a partition plate; 411. a connecting belt; 412. a seal ring; 413. a rubber air bag; 414. a communicating pipe; 5. a first shield; 6. a second shield; 7. mounting a plate; 8. a second threaded rod; 9. a second positioning ring; 10. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: the method comprises the following steps:

a chemical pipeline 1;

the pressure-removable sealing assembly 2 is arranged on the surface of a chemical pipeline 1 and used for replacing sealing elements under pressure, the pressure-removable sealing assembly 2 comprises a sealing strip 201, a limiting pipe 202 and a first positioning ring 210, the sealing strip 201 is movably connected to the inner wall of the limiting pipe 202, a metal hose 203 is fixedly embedded in the middle of the sealing strip 201, two ends of the metal hose 203 are respectively and fixedly provided with a connector 207 and a connecting pipe 209, one ends of the connector 207 and the connecting pipe 209, which are far away from the metal hose 203, are respectively provided with a matched clamping port, and two ends of the sealing strip 201 movably penetrate through and extend to the outside of the first positioning ring 210;

the early warning assembly 3 is arranged in the middle of the first positioning ring 210 and is used for detecting and transmitting pressure information inside the first positioning ring 210;

the leakage-proof assembly 4 is arranged in the middle of the first positioning ring 210 and is used for strengthening sealing, collecting leaked gas and injecting protective gas, the leakage-proof assembly 4 comprises a first gas circulating piece 41, a second gas circulating piece 42 and a third gas circulating piece 43 which are used for controlling gas circulation, and the leakage-proof assembly 4 further comprises a connecting belt 411, a sealing ring 412 and a rubber air bag 413;

the first protective cover 5 and the second protective cover 6 are arranged on the surface of the first positioning ring 210 and are used for protecting the belt pressure detachable sealing assembly 2, the early warning assembly 3 and the leakage-preventing assembly 4.

Chemical pipeline 1's quantity is two, sealing strip 201 and the equal activity of spacing pipe 202 set up the surface that is connected the position at two chemical pipeline 1, the middle part on sealing strip 201 surface is the arc structure, and the size of sealing strip 201 surface arc structure and the inner wall size looks adaptation of sealing strip 201, the one end middle part of the corresponding metal collapsible tube 203 position of connecting pipe 209 is provided with the check valve, first recess 206 has been seted up to the one end of the corresponding connector 207 position of sealing strip 201, second recess 208 has been seted up to the one end of the corresponding connecting pipe 209 position of sealing strip 201, the surface of connecting pipe 209 is provided with the screw thread, sealing strip 201 is the rubber materials component, the one end that first recess 206 position was kept away from to sealing strip 201 is the arc structure.

A plurality of communicating holes 204 have been all seted up to the middle part of metal collapsible tube 203 and the inside of sealing strip 201, and first communicating chamber 205 has been seted up to the inside of sealing strip 201, and the inside of communicating hole 204 is linked together with the inside of metal collapsible tube 203 and first communicating chamber 205 respectively.

The inner wall of the first positioning ring 210 is fixedly provided with a sealing block 211, the bottom of the sealing block 211 is fixedly provided with a sealing air bag 212, the surfaces of the sealing block 211 and the sealing air bag 212 are respectively tightly attached to two ends of the sealing strip 201, the bottom of the sealing air bag 212 is tightly attached to the surface of the chemical pipeline 1, the inside of the sealing block 211 is provided with a movable groove 214, the top of the first positioning ring 210 is in threaded connection with a first threaded rod 213, the first threaded rod 213 movably penetrates through and extends into the movable groove 214, the bottom of the first threaded rod 213 is rotatably connected with a movable block 215 through a bearing, the movable block 215 is movably connected to the inner wall of the movable groove 214, the bottom of the movable block 215 is fixedly provided with a corrugated pipe 216, the corrugated pipe 216 is fixedly arranged on the inner wall of the movable groove 214, the bottom of the sealing block 211 and the middle part of the sealing air bag 212 are both provided with a second communicating cavity 217, the inside of the second communicating cavity 217 is communicated with the inside of the corrugated pipe 216, the two ends of the limiting pipe 202 are respectively fixedly provided with a first fixing frame 229, the first fixing frames 229 are fixedly arranged on the surface of the sealing block 211, and the diameter of the circle where the inner wall of the limiting pipe 202 is located is larger than that of the surface of the chemical pipeline 1.

The surface of one end of the limiting pipe 202 is movably connected with a driving block 218, a worm groove 219 is formed in the surface of the driving block 218, a worm rod 220 is meshed with the inner wall of the worm groove 219, a transmission rod 221 is fixedly mounted in the middle of the worm rod 220, two ends of the transmission rod 221 are rotatably connected with a fixing shell 222 through bearings, the fixing shell 222 is fixedly embedded in the middle of the first positioning ring 210, a driving head 223 is fixedly mounted at the top of the transmission rod 221, a fixing block 228 is fixedly mounted on the inner wall of the first positioning ring 210, the surface of the fixing block 228 is tightly attached to one end of the sealing strip 201, a limiting strip 226 is fixedly mounted on the surface of the driving block 218, a limiting groove 227 is formed in the inner wall of the position, corresponding to the limiting strip 226, of the first positioning ring 210, and the inner wall of the limiting groove 227 is movably connected with the surface of the limiting strip 226.

The quantity of first protection casing 5 is two, and the one end of 5 opposite faces of two first protection casings is articulated through the articulated shaft, and the quantity of second protection casing 6 is four, and per two second protection casings 6 are a set of, and the one end of 6 opposite faces of two sets of second protection casings is all articulated through the articulated shaft, and first protection casing 5 is located position between two sets of second protection casings 6, and first protection casing 5 and second protection casing 6 share an articulated shaft.

A positioning rod 224 is fixedly arranged on the inner wall of the first protective cover 5, a positioning seat 225 is movably sleeved on the surface of the positioning rod 224, and the positioning seat 225 is fixedly installed on the surface of the first positioning ring 210, the positioning rod 224 and the positioning seat 225 are both arc-shaped structures, and the arc centers of the positioning rod 224 and the positioning seat 225 are positioned at the same point as the center of the hinge shaft between the two first shields 5, the front side ends of the first shields 5 and the second shields 6 are respectively fixedly provided with a mounting plate 7, and the upper and lower adjacent mounting plates 7 are fixedly mounted by bolts, two ends of the second protective cover 6 are respectively in threaded connection with second threaded rods 8, the surface of the chemical pipeline 1 corresponding to the positions of the second threaded rods 8 is fixedly provided with a second positioning ring 9, and second position circle 9 swing joint is in the one end of second threaded rod 8, and second position circle 9 is located the inside of second protection casing 6, and the inner wall fixed mounting that the corresponding first position circle 210 both ends of second protection casing 6 put has limiting plate 10.

The early warning assembly 3 comprises a control box 301 and a pressure sensor 302, the control box 301 is fixedly installed in the middle of the first positioning ring 210, the pressure sensor 302 is fixedly installed on the inner walls of the first positioning ring 210 and the control box 301, and a wireless transmission module is integrated in the control box 301.

The first gas circulation piece 41, the second gas circulation piece 42 and the third gas circulation piece 43 all comprise first threaded pipes 401, the first threaded pipes 401 are fixedly installed in the middle of the first positioning ring 210, threaded rings 402 are connected to the inner walls of the first threaded pipes 401 in a threaded mode, second threaded pipes 403 are fixedly installed in the middle of the threaded rings 402, the second threaded pipes 403 are of a hollow structure in the middle, ejector blocks 404 are fixedly installed at the bottoms of the second threaded pipes 403, accommodating seats 405 are fixedly installed at the bottoms of the first threaded pipes 401, rubber pads 407 are fixedly installed at the bottoms of the accommodating seats 405, balls 406 are tightly attached to the surfaces of the rubber pads 407, damping springs 408 are fixedly installed at the bottoms of the balls 406, second fixing frames 409 are fixedly installed at the bottoms of the first threaded pipes 401, and the ejector blocks 404 are located right above the balls 406.

Connecting band 411 fixed mounting is at the inner wall of the corresponding gas circulation spare 41 position of first locating ring 210, and sealing washer 412 fixed mounting is in the one end that first locating ring 210 position was kept away from to connecting band 411, sealing washer 412 closely laminates on the surface of chemical pipeline 1, the inner wall fixed mounting of the corresponding connecting band 411 position of first locating ring 210 has baffle 410, rubber gasbag 413 fixed mounting is at the inner wall of the corresponding gas circulation spare two 42 positions of first locating ring 210, the quantity of rubber gasbag 413 is two, and the equal fixed mounting in middle part of two rubber gasbags 413 has communicating pipe 414, communicating pipe 414 fixed mounting is at the inner wall of first locating ring 210, and the inside of communicating pipe 414 is linked together with the inside of rubber gasbag 413.

The working principle is as follows: when the sealing strip device is used, the sealing strip 201, the limiting tube 202 and the first positioning ring 210 are sleeved on the surface of the chemical engineering pipeline 1 between the two chemical engineering pipelines 1, then the two chemical engineering pipelines 1 are connected, the sealing strip 201, the limiting tube 202 and the first positioning ring 210 are moved, the sealing strip 201 is moved to the connecting position of the two chemical engineering pipelines 1, at the moment, the inside of the metal hose 203 can be inflated through the connecting tube 209 and the second groove 208 by external inflation equipment, the gas inside the metal hose 203 enters the first communicating cavity 205 through the communicating hole 204, the volume of the sealing strip 201 is increased, the sealing strip 201 is well attached to the inner wall of the limiting tube 202 and the surface of the chemical engineering pipeline 1 to achieve the sealing effect, meanwhile, the sealing strip 201 is tightly attached to the surface of the sealing block 211, and by rotating the first threaded rod 213, the first threaded rod 213 is in threaded connection with the first positioning ring 210, the first threaded rod 213 drives the movable block 215 to move downwards in the movable groove 214, and then the movable block 215 injects the air in the corrugated pipe 216 into the second communicating cavity 217, so that the sealing air bag 212 expands and is tightly attached to the surface of the chemical pipeline 1 and the two ends of the sealing strip 201, and the sealing strip 201 is matched with the limiting pipe 202, the sealing block 211 and the sealing air bag 212 to play a sealing role on the surface of the chemical pipeline 1;

the driving head 223 is rotated to drive the driving rod 221 to rotate, so that the driving rod 221 drives the driving block 218 to rotate on the inner wall of the first positioning ring 210 through the worm gear 220 in cooperation with the worm gear groove 219, and the top of the driving block 218 tightly presses one end of the sealing strip 201, the driving block 218 can enable the sealing strip 201 to be better attached to the surfaces of the sealing block 211 and the sealing airbag 212 through cooperation with the fixing block 228, so that the sealing performance of the device is enhanced, at the moment, the first protective cover 5 is sleeved on the surface of the first positioning ring 210, the positions of the first protective cover 5 and the second protective cover 6 are determined through the positioning rod 224 and the positioning seat 225, at the same time, the first positioning ring 210 is placed inside the first protective cover 5 through the limiting plate 10, at the moment, the first protective cover 5 and the second protective cover 6 are fixed on the surface of the chemical pipeline 1 through the mounting plate 7, the second threaded rod 8 with the second protective covers 6 at two ends in threaded connection is rotated, because the lengths of the first protective cover 5 and the second protective cover 6 are fixed, when the second threaded rod 8 is rotated, the second threaded rod 8 can drive the second positioning ring 9 to move towards the position of the first protective cover 5, so that the two second positioning rings 9 can drive the two chemical pipelines 1 to approach each other, and the connection tightness between the two chemical pipelines 1 is further enhanced;

by arranging the first gas circulation piece 41, the second gas circulation piece 42 and the third gas circulation piece 43, when gas needs to be injected into the first positioning ring 210, the gas is directly injected into the second threaded pipe 403, so that the gas pressure inside the first threaded pipe 401 and the accommodating seat 405 is increased, the ball 406 is driven to be separated, the ball 406 is separated from the accommodating seat 405 and the bottom of the rubber pad 407, at the moment, the inside of the first threaded pipe 401 is communicated with the inside of the first positioning ring 210, namely, the gas can be injected into the first positioning ring 210, when the gas inside the first positioning ring 210 needs to be discharged, the second threaded pipe 403 is rotated, the second threaded pipe 403 is in threaded connection with the first threaded pipe 401 through the threaded ring 402, the second threaded pipe 403 moves downwards on the inner wall of the first threaded pipe 401, and the second threaded pipe 403 drives the jacking block 404 to jack the ball 406 downwards, and the balls 406 are separated from the bottom of the accommodating seat 405 and the rubber pad 407, at this time, the inside of the first threaded pipe 401 is in a communication state with the inside of the first positioning ring 210, the gas inside the first positioning ring 210 can be discharged to the outside through the first threaded pipe 401 and the second threaded pipe 403, and the gas leakage can be effectively prevented while performing gas injection and extraction by providing the first gas circulation piece 41, the second gas circulation piece 42, and the third gas circulation piece 43;

after the whole device is assembled, the two first protection covers 5 are opened, gas is injected into the connecting band 411 and the sealing ring 412 through the gas circulation piece I41, the connecting band 411 and the sealing ring 412 are expanded, the sealing ring 412 is tightly attached to the surface of the chemical pipeline 1 under the guiding action of the partition plate 410, the gas inside the first positioning ring 210 is effectively prevented from leaking, namely when the sealing formed by the sealing strip 201, the limiting tube 202, the sealing block 211 and the sealing airbag 212 fails, the leaked gas can still be sealed inside the first positioning ring 210, after the gas is injected into the connecting band 411, pollution-free inert gas is injected into the first positioning ring 210 through the gas circulation piece III 43, and then the two first protection covers 5 are closed again through the mounting plate 7, so that the device is completely installed at this moment;

the air pressure change inside the first positioning ring 210 is detected through the control box 301 and remotely monitored through the wireless transmission module inside the control box 301, that is, when the air pressure inside the first positioning ring 210 is decreased, it indicates that the sealing formed by the sealing strip 201, the limiting tube 202, the sealing block 211 and the sealing airbag 212 is defective or the sealing at the position of the sealing ring 412 is defective, at this time, the gas is simultaneously injected into the connecting band 411 and the metal hose 203 through the first gas flow member 41 and the connecting tube 209, the sealing formed by the sealing strip 201, the limiting tube 202, the sealing block 211 and the sealing airbag 212 and the sealing at the position of the sealing ring 412 are enhanced, and when the air pressure inside the first positioning ring 210 is increased, the sealing formed by the sealing strip 201, the limiting tube 202, the sealing block 211 and the sealing airbag 212 has defects, and the gas inside the chemical engineering pipeline 1 is leaked;

then, the two first protective covers 5 are opened, gas is injected into the rubber airbag 413 through the second gas circulation piece 42, and meanwhile gas leaked from the inside of the first positioning ring 210 is extracted and collected through the third gas circulation piece 43, so that environmental pollution caused by the gas leaked from the inside of the first positioning ring 210 is avoided until the rubber airbag 413 expands and fully adheres to the space inside the first positioning ring 210, and therefore the gas leaked from the inside of the first positioning ring 210 can be completely collected;

then, the connecting pipe 209 at one end of the new sealing strip 201 is clamped with the connecting head 207 at one end of the damaged sealing strip 201, which is located at the connecting pipe 209, is pulled out upwards, the damaged sealing strip 201 drives the new sealing strip 201 to move into the limiting pipe 202 until the damaged sealing strip 201 is completely replaced by the new sealing strip 201, at the moment, the new sealing strip 201 is separated from the damaged sealing strip 201, and gas is injected into the metal hose 203 in the new sealing strip 201 through the connecting pipe 209, so that the new sealing strip 201 can expand and play a sealing role at the joint of the chemical pipeline 1, and the purpose of replacing the sealing element under pressure can be realized, through arranging the first groove 206 and enabling one end of the sealing strip 201, which is far away from the position of the first groove 206, to be of an arc-shaped structure, when the damaged sealing strip 201 drives the new sealing strip 201 to move on the inner wall of the limiting pipe 202, still can play sealed effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.