CN112923146A - Anti-leakage chemical pipeline flange - Google Patents
Anti-leakage chemical pipeline flange Download PDFInfo
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- CN112923146A CN112923146A CN202110042716.8A CN202110042716A CN112923146A CN 112923146 A CN112923146 A CN 112923146A CN 202110042716 A CN202110042716 A CN 202110042716A CN 112923146 A CN112923146 A CN 112923146A
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- Prior art keywords
- flange
- flange plate
- ring
- plate
- connecting pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/006—Attachments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/167—Flanged joints characterised by the sealing means in connection with the appearance or detection of leaks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2201/00—Special arrangements for pipe couplings
- F16L2201/30—Detecting leaks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to the field of flanges, and particularly discloses a leakage-proof chemical pipeline flange which comprises a first flange plate and a second flange plate, wherein one opposite end of the first flange plate and one opposite end of the second flange plate are respectively connected with a first connecting pipe and a second connecting pipe, and the first connecting pipe can be inserted into the second connecting pipe; the first flange plate and the second flange plate are sleeved with threaded sleeves. Twist and move the installation threaded sleeve, can accomplish the sealed line of multichannel, sealed effect is better, even a certain sealed line goes wrong, the chemical industry gas of pipeline inside can not take place to leak yet, the sealed line cooperation of multichannel is used for pipeline joint department is sealed safety more, can not take place the accident of leaking.
Description
Technical Field
The invention relates to the field of flanges, and particularly discloses a leakage-proof chemical pipeline flange.
Background
The flanges are common connecting parts, and after the two flanges are placed, the two flanges can be mechanically connected by tightening and sealing the two flanges by using a plurality of bolts. The pipe joint is commonly used for connecting pipe sections which need to be frequently disassembled, such as steel pipes, cast iron pipes, plastic pipes and the like, and pipes with larger pipe diameters.
But the existing chemical pipeline flange still has certain defects in use. The existing chemical pipeline flange is often leaked when being connected with a pipeline for transporting chemical gas. The existing flange connection is usually connected by bolts or threads, the connection mode is simple, the sealing performance is poor, and gas in a pipeline is easy to leak at the joint of the pipeline. Because some gas pipelines are outdoor, the leakage cannot be found in time, and safety accidents are easily caused. When the flange is influenced by severe weather or external environment, the connecting part of the flange is easy to damage, and the sealing performance can not be ensured.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a leakage-proof chemical pipeline flange.
The purpose of the invention can be realized by the following technical scheme:
a leakage-proof chemical pipeline flange comprises a first flange plate and a second flange plate, wherein one opposite end of the first flange plate and one opposite end of the second flange plate are respectively connected with a first connecting pipe and a second connecting pipe, and the first connecting pipe can be inserted into the second connecting pipe; the first flange plate and the second flange plate are sleeved with threaded sleeves.
The middle end of the outer portion of the first connecting pipe is provided with a circle of groove rings along the circumferential direction, one end, far away from the second flange, of the inner portion of the first connecting pipe is connected with a circle of inner convex rings along the circumferential direction, and the inner diameter of the first connecting pipe is the same as that of the first flange.
The inner diameter of the second connecting pipe is the same as that of the second flange plate, and a plugging mechanism matched with the groove ring is arranged in the second flange plate along the circumferential direction; a sealing ring is sleeved in one end of the second flange plate, which is far away from the first flange plate, and a circle of elastic sealing spacer sleeve is connected between the inner end edge of the sealing ring and the inner end edge of the second flange plate; the inner end of the sealing ring may abut the end of the inner collar.
The outer wall of second ring flange evenly is connected with the depression bar that a plurality of can reciprocate along the circumferencial direction, the outer wall of second ring flange is provided with the removal hole with the junction of depression bar, the depression bar is pegged graft in the inside that removes the hole, the depression bar is big-end-up's toper structure, and the inside one end level swing joint towards the sealing ring of second ring flange has a plurality of push rods, the one end extendible of push rod is to the inside that removes the hole, the other end runs through the second ring flange and extends to outside and be connected with the atress mechanism, the bottom of atress mechanism rotates with the upper portion of sealing ring to be connected, the atress mechanism can drive the sealing.
Preferably, the outer end of sealing ring is connected with coupling hose, and coupling hose is the metal material, and coupling hose keeps away from the one end of sealing ring and is connected with the second pipeline, and the one end that the second ring flange was kept away from to first ring flange is connected with the second pipeline.
Preferably, the outer walls of the first flange plate and the second flange plate are provided with external threads along the circumferential direction, and the threaded sleeve is in threaded connection with the external threads of the first flange plate and the second flange plate through the external threads.
Preferably, the outside of first pipeline and the outside of second pipeline all are equipped with sealing sleeve, sealing sleeve's outer wall and threaded sleeve's inner wall butt, and the baroceptor is all installed to the relative one end of two sealing sleeve.
Preferably, the inner wall of second ring flange is provided with the round mounting groove along the circumferencial direction, and shutoff mechanism includes the curved clamp plate of a plurality of, and clamp plate movable mounting can enclose into a ring in the inside of mounting groove, a plurality of clamp plate, and the ring can peg graft in the inside of groove ring, and the outside of clamp plate is provided with the round and seals up.
Preferably, every the clamp plate corresponds a depression bar, and the top of clamp plate is connected with the connecting rod, and the one end that the clamp plate was kept away from to the connecting rod is connected with the bottom fixed connection of depression bar, and the junction of clamp plate and depression bar is connected with and keeps off the ring, keeps off the diameter of ring and is greater than the internal diameter that removes the hole, installs a plurality of extension spring between the inner of clamp plate one side and mounting groove.
Preferably, the stress mechanism comprises a fixed plate and a poke rod, one end of the fixed plate is fixedly connected with the outside of the second flange plate, the upper part of the poke rod is rotatably installed on the fixed plate through a pin shaft, the top part of the poke rod is rotatably connected with a push rod through a pin shaft, and the bottom part of the poke rod is rotatably connected with the outside of the sealing ring through a pin shaft.
Preferably, a plurality of fixing holes for bolt fixing are formed in the first flange plate and the second flange plate along the thickness direction.
The invention has the beneficial effects that:
1. through setting up first ring flange and second ring flange, and at the outside threaded connection threaded sleeve of two ring flanges, first ring flange and the installation of pegging graft each other of second ring flange are with the threaded sleeve suit in the outside of first pipeline. The threaded sleeve can seal the joint of the first flange plate and the second flange plate at the outside, and the tensile strength of the joint can be improved.
2. Through the internally mounted packaging mechanism at the second ring flange and at the tip installation sealing ring, the threaded sleeve installs in the outside back of first ring flange and second ring flange, and the telescopic inner wall of screw extrudees the depression bar, and the depression bar moves to the inside in removal hole to promote the clamp plate through the connecting rod, the lateral wall of depression bar extrudees the promotion to the tip of push rod. A plurality of clamp plate encloses into a ring in the inside of groove ring, and the inseparable butt of junction of two adjacent clamp plates, is difficult for taking place to leak, seals first connecting pipe and second connecting pipe behind ring and the groove ring joint, and sealed the pad seals the space between clamp plate and the mounting groove. And the push rod receives the promotion back, drives the inside that the one end of sealing ring enters into first ring flange from the second ring flange, and the one end of sealing ring and the tip butt of interior bulge loop, further seal the connection of first connecting pipe and second connecting pipe. Through twisting the installation threaded sleeve, can accomplish the sealed line of multichannel, sealed effect is better, even a certain sealed line goes wrong, the inside chemical industry gas of pipeline can not take place to leak yet, the sealed line cooperation of multichannel is used for pipeline joint department is sealed safety more, can not take place the accident of leaking.
3. Through the sealed sleeve of inside both ends installation at threaded sleeve, seal between threaded sleeve and first pipeline and the second pipeline to with baroceptor and backstage control system communication connection. And a sealing line is added, so that the sealing performance is further improved. And in case the pipeline junction takes place the back that leaks, chemical gas enters into between threaded sleeve and first pipeline and the second pipeline, and inside atmospheric pressure increases, and after atmospheric pressure sensor detected the pressure increase, to the back stage control system signal of conveying, the staff can be timely discovery pipeline junction leak, can be timely maintain change, avoid dangerous emergence. And the air pressure sensor can be replaced by a sensor of other required chemical gases in use, so that the working requirement can be met in use.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the first flange plate of the present invention.
Fig. 3 is a schematic structural view of a second flange plate according to the present invention.
Fig. 4 is a schematic view of the internal structure of the second flange plate according to the present invention.
FIG. 5 is a schematic view of the mounting structure of the pressing plate and the second flange plate according to the present invention.
In the figure: 1. a first flange plate; 2. a second flange plate; 3. a pressure lever; 4. a first conduit; 5. a second conduit; 6. a threaded sleeve; 7. an air pressure sensor; 8. a sealing sleeve; 9. an external thread; 10. a groove ring; 11. an inner collar; 12. a first connecting pipe; 13. a fixing hole; 14. a seal ring; 15. a second connecting pipe; 16. pressing a plate; 17. mounting grooves; 18. a connecting hose; 19. moving the hole; 20. a baffle ring; 21. a push rod; 22. a fixing plate; 23. a poke rod; 24. a gasket; 25. a connecting rod; 26. a tension spring; 27. and (5) sealing the blocking sleeve.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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. 1-5, a leakage-proof chemical pipeline flange includes a first flange plate 1 and a second flange plate 2, wherein one end of the first flange plate 1 opposite to the second flange plate 2 is respectively connected with a first connecting pipe 12 and a second connecting pipe 15, and the first connecting pipe 12 can be inserted into the second connecting pipe 15; the outer parts of the first flange plate 1 and the second flange plate 2 are sleeved with threaded sleeves 6.
A circle of groove rings 10 are arranged at the middle end of the outer part of the first connecting pipe 12 along the circumferential direction, a circle of inner convex rings 11 are connected at one end of the inner part of the first connecting pipe 12, which is far away from the second flange plate 2, along the circumferential direction, and the inner diameter of the first connecting pipe 12 is the same as that of the first flange plate 1.
The inner diameter of the second connecting pipe 15 is the same as that of the second flange plate 2, and a plugging mechanism matched with the groove ring 10 is arranged in the second flange plate 2 along the circumferential direction; a sealing ring 14 is sleeved in one end, far away from the first flange plate 1, of the second flange plate 2, and a circle of elastic sealing blocking sleeve 27 is connected between the inner end edge of the sealing ring 14 and the inner end edge of the second flange plate 2; the inner end of the sealing ring 14 may abut the end of the inner collar 11.
The outer wall of second ring flange 2 evenly is connected with the depression bar 3 that a plurality of can reciprocate along the circumferencial direction, the outer wall of second ring flange 2 is provided with removal hole 19 with the junction of depression bar 3, depression bar 3 pegs graft in the inside that removes hole 19, depression bar 3 is big-end-up's toper structure, and the inside horizontal swing joint of one end towards sealing ring 14 of second ring flange 2 has a plurality of push rods 21, the one end of push rod 21 can extend to the inside that removes hole 19, the other end runs through second ring flange 2 and extends to outside and be connected with the atress mechanism, the bottom of atress mechanism rotates with the upper portion of sealing ring 14 to be connected, the atress mechanism can drive sealing ring 14 and remove in second ring flange 2 is.
As a technical optimization scheme of the invention, the outer end of the sealing ring 14 is connected with the connecting hose 18, the connecting hose 18 is made of metal, one end of the connecting hose 18, which is far away from the sealing ring 14, is connected with the second pipeline 5, one end of the first flange 1, which is far away from the second flange 2, is connected with the second pipeline 5, and the connecting hose 18 facilitates the movement of the sealing ring 14.
As a technical optimization scheme of the invention, external threads 9 are arranged on the outer walls of the first flange plate 1 and the second flange plate 2 along the circumferential direction, the threaded sleeve 6 is in threaded connection with the outer parts of the first flange plate 1 and the second flange plate 2 through the external threads 9, and the external threads 9 facilitate the fixed installation of the threaded sleeve 6 with the first flange plate 1 and the second flange plate 2.
As a technical optimization scheme of the invention, sealing sleeves 8 are sleeved outside the first pipeline 4 and the second pipeline 5, the outer wall of each sealing sleeve 8 is abutted against the inner wall of the threaded sleeve 6, and the two opposite ends of the two sealing sleeves 8 are respectively provided with an air pressure sensor 7, once leakage occurs at the pipeline joint, chemical gas enters between the threaded sleeve 6 and the first pipeline 4 and the second pipeline 5, the internal air pressure is increased, and the air pressure sensors 7 transmit signals to a background control system after detecting the increase of the pressure, so that a worker can find the leakage at the pipeline joint in time.
As a technical optimization scheme of the invention, a circle of mounting groove 17 is arranged on the inner wall of the second flange 2 along the circumferential direction, the plugging mechanism comprises a plurality of arc-shaped pressing plates 16, the pressing plates 16 are movably mounted inside the mounting groove 17, the pressing plates 16 can form a circular ring in a surrounding manner, the circular ring can be inserted into the groove ring 10, a circle of sealing gasket 24 is arranged outside the pressing plates 16, and the circular ring formed by the pressing plates 16 can seal the connection position of the first connecting pipe 12 and the second connecting pipe 15.
As a technical optimization scheme of the invention, each pressure plate 16 corresponds to one pressure rod 3, the top of each pressure plate 16 is connected with a connecting rod 25, one end of each connecting rod 25, which is far away from the pressure plate 16, is fixedly connected with the bottom end of each pressure rod 3, a baffle ring 20 is connected at the joint of each pressure plate 16 and each pressure rod 3, the diameter of each baffle ring 20 is larger than the inner diameter of each moving hole 19, a plurality of tension springs 26 are arranged between one side of each pressure plate 16 and the inner end of each mounting groove 17, and the pressure rods 3 can push the pressure plates 16 to move through the connecting rods 25 after being stressed, so that the pressure plates 16 can enter the. After the threaded sleeve 6 is separated from the outer portions of the first flange plate 1 and the second flange plate 2, the tension spring 26 can pull the pressure plate 16 to be separated from the inner portion of the groove ring 10, and therefore the first flange plate 1 and the second flange plate 2 can be conveniently detached.
As a technical optimization scheme of the invention, the stress mechanism comprises a fixed plate 22 and a poke rod 23, one end of the fixed plate 22 is fixedly connected with the outside of the second flange plate 2, the upper part of the poke rod 23 is rotatably installed with the fixed plate 22 through a pin shaft, the top of the poke rod 23 is rotatably connected with the push rod 21 through a pin shaft, and the bottom of the poke rod 23 is rotatably connected with the outside of the sealing ring 14 through a pin shaft.
As a technical optimization scheme of the invention, a plurality of fixing holes 13 for fixing bolts are arranged inside the first flange plate 1 and the second flange plate 2 along the thickness direction.
When the pipeline connecting device is used, the first pipeline 4 and the second pipeline 5 are respectively welded and fixed with the end parts of two pipelines to be connected and fixed, and the first flange plate 1 and the second flange plate 2 are mutually inserted and installed. The first connecting pipe 12 is inserted in the second connecting pipe 15, before insertion installation, the threaded sleeve 6 is sleeved outside the first pipeline 4, and the first flange plate 1 and the second flange plate 2 are fixedly installed by penetrating a plurality of bolts through the fixing holes 13.
Promote threaded sleeve 6 to second ring flange 2 afterwards to twist and move threaded sleeve 6, threaded sleeve 6 threaded connection is in the outside of second ring flange 2, if twist and move the in-process and receive the blockking of depression bar 3, can press depression bar 3 downwards, makes things convenient for threaded sleeve 6 to install in the outside of second ring flange 2, along with continuous twisting, threaded sleeve 6 moves the outside of first ring flange 1, and the back is divided at the tip of first ring flange 1 and second ring flange 2 more or less to the threaded sleeve 6, stops twisting and moves.
After the threaded sleeve 6 is installed outside the first flange plate 1 and the second flange plate 2, the inner wall of the threaded sleeve 6 extrudes the pressing rod 3, the pressing rod 3 moves towards the inside of the moving hole 19 and pushes the pressing plate 16 through the connecting rod 25, the diameter of the upper part of the pressing rod 3 is large, and after the pressing rod enters the inside of the moving hole 19, the end part of the push rod 21 is extruded and pushed by the side wall of the pressing rod 3. The pressure plate 16 is pushed so that one end extends outwardly from the interior of the mounting groove 17 until the end enters the interior of the groove ring 10. A plurality of clamp plate 16 encloses into a ring in the inside of recess ring 10, and the inseparable butt of junction of two adjacent clamp plates 16, is difficult for taking place to leak, seals first connecting pipe 12 and second connecting pipe 15 behind ring and the 10 joint of recess ring, and sealed pad 24 seals the space between clamp plate 16 and the mounting groove 17.
And push rod 21 receives the promotion back, and the other end outwards removes and promotes the top of poker rod 23, and then makes poker rod 23 rotate at the outside of fixed plate 22 around the round pin axle to the bottom of poker rod 23 removes to the inside of second ring flange 2, drives the inside that the one end of sealing ring 14 entered into first ring flange 1 from second ring flange 2 at last, and the one end of sealing ring 14 and the tip butt of inner convex ring 11, further is sealed the connection of first connecting pipe 12 and second connecting pipe 15. Through twisting installation threaded sleeve 6, can accomplish the sealed line of multichannel, sealed effect is better, even a certain sealed line goes wrong, the inside chemical industry gas of pipeline can not take place to leak yet, the sealed line cooperation of multichannel is used for pipeline joint department is sealed safety more, can not take place the accident of leaking.
After the threaded sleeve 6 is installed, the sealing sleeves 8 at the two ends are pushed to enter the threaded sleeve 6, the first pipeline 4 and the second pipeline 5 are sealed, and the air pressure sensor 7 is in communication connection with the background control system. And a sealing line is added, so that the sealing performance is further improved. And in case the pipeline junction takes place the back that leaks, chemical gas enters into between threaded sleeve 6 and first pipeline 4 and the second pipeline 5, and inside atmospheric pressure increases, and baroceptor 7 detects the pressure increase back, carries out the signal transmission to back platform control system, and the staff can be timely discovery pipeline junction leaks, can be timely maintain change, avoids dangerous emergence. And the air pressure sensor 7 can be replaced by a sensor of other required chemical gases in use, so that the working requirements can be met in use.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A leakage-proof chemical pipeline flange comprises a first flange plate (1) and a second flange plate (2), and is characterized in that one end of the first flange plate (1) opposite to one end of the second flange plate (2) is respectively connected with a first connecting pipe (12) and a second connecting pipe (15), and the first connecting pipe (12) can be inserted into the second connecting pipe (15); the outer parts of the first flange plate (1) and the second flange plate (2) are sleeved with threaded sleeves (6);
a circle of groove rings (10) are arranged at the middle end of the outer part of the first connecting pipe (12) along the circumferential direction, a circle of inner convex rings (11) are connected to one end, far away from the second flange plate (2), of the inner part of the first connecting pipe (12) along the circumferential direction, and the inner diameter of the first connecting pipe (12) is the same as that of the first flange plate (1);
the inner diameter of the second connecting pipe (15) is the same as that of the second flange plate (2), and a plugging mechanism matched with the groove ring (10) is arranged in the second flange plate (2) along the circumferential direction; a sealing ring (14) is sleeved in one end, far away from the first flange plate (1), of the second flange plate (2), and a circle of elastic sealing blocking sleeve (27) is connected between the inner end edge of the sealing ring (14) and the inner end edge of the second flange plate (2); the inner end of the sealing ring (14) can be abutted against the end part of the inner convex ring (11);
the outer wall of second ring flange (2) is evenly connected with depression bar (3) that a plurality of can reciprocate along the circumferencial direction, the outer wall of second ring flange (2) is provided with removal hole (19) with the junction of depression bar (3), depression bar (3) are pegged graft in the inside of removal hole (19), depression bar (3) are big-end-up's toper structure, and the inside one end level swing joint who faces sealing ring (14) of second ring flange (2) has a plurality of push rods (21), the one end extensible of push rod (21) is to the inside of removal hole (19), the other end runs through second ring flange (2) and extends to outside and is connected with the atress mechanism, the bottom of atress mechanism rotates with the upper portion of sealing ring (14) to be connected, the atress mechanism can drive sealing ring (14) and move in second ring flange (2) inside.
2. A leakage-proof chemical pipeline flange according to claim 1, wherein the outer end of the sealing ring (14) is connected with a connection hose (18), the connection hose (18) is made of metal, and one end of the connection hose (18) far away from the sealing ring (14) is connected with the second pipeline (5), and one end of the first flange plate (1) far away from the second flange plate (2) is connected with the second pipeline (5).
3. A leakage-proof chemical pipeline flange according to claim 2, characterized in that the outer walls of the first flange plate (1) and the second flange plate (2) are provided with external threads (9) along the circumferential direction, and the threaded sleeve (6) is in threaded connection with the outer portions of the first flange plate (1) and the second flange plate (2) through the external threads (9).
4. A leakage-proof chemical pipeline flange according to claim 3, characterized in that the outside of the first pipeline (4) and the outside of the second pipeline (5) are sleeved with sealing sleeves (8), the outer wall of the sealing sleeve (8) is abutted against the inner wall of the threaded sleeve (6), and the opposite ends of the two sealing sleeves (8) are provided with air pressure sensors (7).
5. A leakage-proof chemical pipeline flange according to claim 1, wherein the inner wall of the second flange plate (2) is provided with a circle of mounting groove (17) along the circumferential direction, the plugging mechanism comprises a plurality of arc-shaped pressing plates (16), the pressing plates (16) are movably mounted inside the mounting groove (17), the pressing plates (16) can be enclosed into a circular ring, the circular ring can be inserted into the groove ring (10), and a circle of sealing gasket (24) is arranged outside the pressing plates (16).
6. A leakage-proof chemical pipeline flange according to claim 5, characterized in that each said pressing plate (16) corresponds to a pressing rod (3), the top of the pressing plate (16) is connected with a connecting rod (25), one end of the connecting rod (25) far away from the pressing plate (16) is fixedly connected with the bottom end of the pressing rod (3), and the joint of the pressing plate (16) and the pressing rod (3) is connected with a baffle ring (20), the diameter of the baffle ring (20) is greater than the inner diameter of the moving hole (19), and a plurality of tension springs (26) are installed between one side of the pressing plate (16) and the inner end of the mounting groove (17).
7. A leakage-proof chemical pipeline flange according to claim 1, wherein the force-receiving mechanism comprises a fixed plate (22) and a poke rod (23), one end of the fixed plate (22) is fixedly connected with the outside of the second flange (2), the upper part of the poke rod (23) is rotatably mounted with the fixed plate (22) through a pin shaft, the top of the poke rod (23) is rotatably connected with the push rod (21) through a pin shaft, and the bottom of the poke rod (23) is rotatably connected with the outside of the sealing ring (14) through a pin shaft.
8. A leakage-proof chemical pipeline flange according to claim 1, wherein the first flange plate (1) and the second flange plate (2) are each provided with a plurality of fixing holes (13) for bolt fixing along the thickness direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110042716.8A CN112923146A (en) | 2021-01-13 | 2021-01-13 | Anti-leakage chemical pipeline flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110042716.8A CN112923146A (en) | 2021-01-13 | 2021-01-13 | Anti-leakage chemical pipeline flange |
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| Publication Number | Publication Date |
|---|---|
| CN112923146A true CN112923146A (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110042716.8A Pending CN112923146A (en) | 2021-01-13 | 2021-01-13 | Anti-leakage chemical pipeline flange |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623474A (en) * | 2021-07-05 | 2021-11-09 | 王锁成 | Convex surface flat welding flange |
| CN113669529A (en) * | 2021-07-22 | 2021-11-19 | 中国水利水电第六工程局有限公司 | Pressure steel pipe butt joint reinforcing apparatus |
| CN113863466A (en) * | 2021-11-17 | 2021-12-31 | 黄淮学院 | Environment-friendly prefabricated building and sewage system thereof |
| CN114294569A (en) * | 2021-12-21 | 2022-04-08 | 锡林郭勒盟山金阿尔哈达矿业有限公司 | High-pressure warm air preheating device for long-distance pipeline in alpine region |
| CN114576444A (en) * | 2022-01-19 | 2022-06-03 | 唐莹莹 | Coping pipeline leakage flange based on stability improvement |
| CN115163949A (en) * | 2022-06-24 | 2022-10-11 | 海安迪斯凯瑞探测仪器有限公司 | Leak protection equipment based on buried pipeline maintains usefulness |
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2021
- 2021-01-13 CN CN202110042716.8A patent/CN112923146A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623474A (en) * | 2021-07-05 | 2021-11-09 | 王锁成 | Convex surface flat welding flange |
| CN113623474B (en) * | 2021-07-05 | 2023-08-22 | 定襄县昕坤法兰锻造有限公司 | Protruding surface flat welding flange |
| CN113669529A (en) * | 2021-07-22 | 2021-11-19 | 中国水利水电第六工程局有限公司 | Pressure steel pipe butt joint reinforcing apparatus |
| CN113863466A (en) * | 2021-11-17 | 2021-12-31 | 黄淮学院 | Environment-friendly prefabricated building and sewage system thereof |
| CN114294569A (en) * | 2021-12-21 | 2022-04-08 | 锡林郭勒盟山金阿尔哈达矿业有限公司 | High-pressure warm air preheating device for long-distance pipeline in alpine region |
| CN114576444A (en) * | 2022-01-19 | 2022-06-03 | 唐莹莹 | Coping pipeline leakage flange based on stability improvement |
| CN115163949A (en) * | 2022-06-24 | 2022-10-11 | 海安迪斯凯瑞探测仪器有限公司 | Leak protection equipment based on buried pipeline maintains usefulness |
| CN115163949B (en) * | 2022-06-24 | 2023-07-21 | 海安迪斯凯瑞探测仪器有限公司 | Leakage-proof equipment based on buried pipeline maintenance |
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