CN216382940U - Flange protective sleeve shell with good sealing performance - Google Patents
Flange protective sleeve shell with good sealing performance Download PDFInfo
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- CN216382940U CN216382940U CN202122573547.9U CN202122573547U CN216382940U CN 216382940 U CN216382940 U CN 216382940U CN 202122573547 U CN202122573547 U CN 202122573547U CN 216382940 U CN216382940 U CN 216382940U
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- air bag
- shell
- protective sleeve
- sealing performance
- flanges
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Abstract
The utility model discloses a flange protective sleeve shell with good sealing performance, which comprises a shell body and an air bag, wherein the shell body is provided with a flange protective sleeve; the guide hole that opening and axial run through is seted up to the casing body, and inside sets up the annular that can hold the gasbag, and the gasbag is fixed in the annular, and the gasbag is the open annular structure of one end, and the gasbag is inwards sunken to form the recess towards the lateral wall of guide hole center one side, and the gasbag has the valve that is used for filling the gassing, and the valve stretches out the casing body outside by the opening. According to the flange protective sleeve shell with good sealing performance, the shell body and the air bag are arranged, the groove is formed in the air bag with the annular open structure, the air bag is inflated through the valve, the expanded groove generates axial opposite acting force and radial tightening acting force on the flange joint, and the sealing performance of the flange joint is greatly improved; the shell is wide in application range and can be suitable for flanges with different diameters and thicknesses.
Description
Technical Field
The utility model relates to the technical field of flange sealing, in particular to a flange protective sleeve shell with good sealing performance.
Background
The conventional auxiliary pipeline connection is mainly stainless steel pipe connection, and joints are connected by flanges. Therefore, the flange is used as a part for connecting pipelines and is widely applied to nuclear power operation, nuclear power engineering, petrochemical natural gas, coal mines, industrial production, construction industry, machinery, electric power, traffic and inspection and maintenance industries, and the joint of the flange of the conventional pipeline has a leakage point condition due to pipeline vibration or corrosion, so that the flange not only has influence on the environment, but also is easy to damage human bodies due to partial auxiliary corrosivity or toxicity; for safety in use, many flanges are equipped with flange sheaths for simultaneous use.
The existing flange sheath mainly prevents fog-like spray leakage at the flange joint caused by some unstable factors, does not defend the hazard of the flange sheath to human bodies at the source of the dangerous hidden danger, and has poor safety; in addition, the existing flange protection sleeve is usually required to be sleeved on the connecting pipeline after the connecting pipeline is separated during installation so as to realize the assembly, and the installation is inconvenient.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems in the background art, the utility model provides a flange protective sleeve shell with good sealing performance.
The utility model provides a flange protective sleeve shell with good sealing performance, which comprises a shell body and an air bag; the guide hole that opening and axial run through is seted up to the casing body, and inside sets up the annular that can hold the gasbag, and the gasbag is fixed in the annular, and the gasbag is the open annular structure of one end, and the gasbag is inwards sunken to form the recess towards the lateral wall of guide hole center one side, and the gasbag has the valve that is used for filling the gassing, and the valve stretches out the casing body outside by the opening.
Preferably, the side wall of the ring groove is smoothly connected with the bottom wall.
Preferably, the housing body is formed by connecting a first main body and a second main body, one end of the first main body is hinged with one end of the second main body, and the other end of the first main body is in threaded connection with the other end of the second main body.
Preferably, the air bag further comprises an inflator, and the inflator is communicated with the air bag.
Preferably, the air bag type air bag pressure maintaining device further comprises a pressure maintaining pump and a pressure maintaining valve, wherein the pressure maintaining pump is communicated with the air bag, and the pressure maintaining valve is installed between the air bag and the pressure maintaining pump.
Preferably, the balloon is made of rubber or silicone.
According to the flange protective sleeve shell with good sealing performance, the shell body and the air bag are arranged, the groove is formed in the air bag with the annular open structure, the air bag is inflated through the valve, the two flanges are mutually extruded by the expanded groove through the side walls on the two sides of the expanded groove, and the side walls on the two sides of the expanded groove respectively generate axial acting forces and opposite acting forces on the two flanges, so that the connection between the two flanges is firmer, and the sealing performance of the connection between the two flanges is improved;
meanwhile, the bottom wall of the bulging groove facing the center of the guide hole generates radial acting force on the joint between the two flanges, so that the bottom wall of the bulging groove is tightly attached to a fine gap at the joint of the two flanges, the sealing property of the joint of the two flanges is further improved, liquid sputtering or potential safety hazard caused by poor sealing property of the joint of the flanges is completely avoided, the shell body has a protection effect on the air bag to resist the acting force outside the joint of the flanges, and the service life of the shell is prolonged;
the air bag is arranged into an open annular structure, and even if the diameters of the flanges are different, the air bag can be attached to the flanges with different diameters by changing the angle of the open central angle of the air bag, so that the air bag can be suitable for the flanges with different diameters;
meanwhile, the groove arranged on the air bag has buffering elastic performance after being inflated so as to be suitable for flanges with different thicknesses.
Therefore, the shell is wide in application range, can be suitable for flanges with different diameters and thicknesses, generates axial opposite acting force and radial tightening acting force on the flange connection position, and greatly improves the sealing performance of the flange connection position.
Drawings
Fig. 1 is an axial sectional view of a flange protection sleeve shell with good sealing performance, which is provided by the utility model.
Fig. 2 is a radial cross-sectional view of a flange protective sleeve shell with good sealing performance according to the utility model.
Detailed Description
As shown in fig. 1-2, fig. 1 is an axial sectional view of a flange protective sleeve housing with good sealing performance according to the present invention. Fig. 2 is a radial cross-sectional view of a flange protective sleeve shell with good sealing performance according to the utility model.
Referring to fig. 1-2, the utility model provides a flange protective sleeve shell with good sealing performance, which comprises a shell body 1 and an air bag 2; casing body 1 has seted up opening 11 and the guide hole 12 that the axial runs through, and inside sets up the annular 13 that can hold gasbag 2, and gasbag 2 is fixed in annular 13, and gasbag 2 is the open annular structure of one end, and gasbag 2 is inwards sunken to form recess 21 towards the lateral wall of guide hole 12 center one side, and gasbag 2 has the valve 22 that is used for filling the gassing, and valve 22 stretches out casing body 1 outside by opening 11.
In the specific working process of the flange protective sleeve shell with good sealing performance, when the flange protective sleeve shell is used, the shell is sleeved at the joint of the two flanges 3, the flanges 3 are positioned in the grooves 21, the air bag 2 covers the two flanges 3 which are connected with each other through the grooves 21, the tube body 4 penetrates through the guide hole 12, the air bag 2 is inflated through the valve 22, the air bag 2 generates bulging due to increase of internal air pressure, and the bulged grooves 21 tightly cover the two flanges 3 which are connected with each other; when two flanges 3 need to be disassembled, the gas in the air bag 2 is discharged through the valve 22, the air bag 2 is gradually separated from the two flanges 3 due to the reduction of the internal air pressure, the shell is taken out from the joint of the flanges 3, and then the two flanges 3 which are connected with each other are disassembled.
In the embodiment, the provided flange protective sleeve shell with good sealing performance is provided with the shell body 1 and the air bag 2, the air bag 2 with an annular open structure is provided with the groove 21, the air bag 2 is inflated through the valve 22, the two flanges 3 are mutually extruded by the expanded groove 21 through the side walls on the two sides of the expanded groove, and the side walls on the two sides of the expanded groove respectively generate axial and opposite acting forces on the two flanges 3, so that the connection between the two flanges is more fastened, and the sealing performance of the connection between the two flanges is improved;
meanwhile, the expanded groove 21 generates radial acting force on the joint between the two flanges 3 through the bottom wall of the expanded groove facing the center of the guide hole 12, so that the bottom wall of the expanded groove is tightly attached to a fine gap at the joint of the two flanges 3, the sealing property of the joint of the two flanges 3 is further improved, liquid sputtering or potential safety hazard caused by poor sealing property of the joint of the flanges 3 is completely avoided, the shell body 1 has a protection effect on the air bag 2 to resist the acting force outside the joint of the flanges 3, and the service life of the shell is prolonged;
the air bag 2 is arranged into an open annular structure, even if the diameters of the flanges 3 are different, the air bag 2 can be attached to the flanges 3 with different diameters by changing the angle of the open central angle of the air bag, and the air bag can be suitable for the flanges 3 with different diameters;
meanwhile, the groove 21 of the airbag 2 has buffering elastic performance after being inflated so as to be suitable for flanges 3 with different thicknesses.
Therefore, the application range of the shell is wide, the shell can be suitable for flanges 3 with different diameters and thicknesses, axial opposite acting force and radial tightening acting force are generated at the joint of the flanges 3, and the sealing performance of the joint of the flanges 3 is greatly improved.
In a particular embodiment, the side walls of the ring groove 13 are smoothly connected to the bottom wall. The side wall and the bottom wall of the ring groove 13 are in smooth transition connection without burrs, so that the air bag 2 is effectively protected, the phenomenon that the air bag 2 is punctured and scratched by a sharp corner is avoided, and the service life of the air bag 2 is prolonged.
Further, the housing body 1 is formed by connecting a first main body and a second main body, one end of the first main body is hinged to one end of the second main body, and the other end of the first main body is in threaded connection with the other end of the second main body. The shell body 1 adopts the mode that the first main body and the second main body can be detachably connected, and is convenient to mount, fix and dismount.
Further, the air bag type air bag device further comprises an inflator pump, and the inflator pump is communicated with the air bag 2.
Still further, still include pressurize pump and pressure retaining valve, pressurize pump intercommunication gasbag 2, pressure retaining valve installs between gasbag 2 and the pressurize pump. The pressure maintaining pump is communicated with the air bag 2 through a pressure maintaining valve, so that the air pressure inside the air bag 2 keeps a stable state, and the sealing performance of the joint of the flange 3 is further kept.
In other embodiments, the balloon 2 is made of rubber or silicone. The rubber or silica gel material has better expansion deformation and pressure resistance.
The working principle is as follows: when the inflatable air bag is used, the first main body and the air bag 2 are clamped at the joint of the two flanges 3, the flanges 3 are positioned inside the groove 21, the air bag 2 covers the two flanges 3 which are connected with each other through the groove 21, the other end of the second main body is in threaded connection with the other end of the first main body, the pipe body 4 penetrates through the guide hole 12, the inflator pump is started, the inflator pump inflates the air bag 2 through the valve 22, the air bag 2 generates bulging due to the increase of internal air pressure, the bulged groove 21 tightly covers the two flanges 3 which are connected with each other, and the inflator pump is closed; starting a pressure maintaining pump, opening a pressure maintaining valve, and communicating the pressure maintaining pump with the air bag 2 through the pressure maintaining valve so as to keep the air pressure inside the air bag 2 in a stable state and further keep the sealing property at the joint of the flange 3; when two flanges 3 need to be dismantled, the pressure retaining pump is closed, the pressure retaining valve is closed, the gas in the air bag 2 is released through the valve 22, the air bag 2 is gradually separated from the two flanges 3 due to the reduction of the internal air pressure of the air bag, the shell is taken out from the joint of the flanges 3, and then the two flanges 3 which are connected with each other are dismantled.
In order to prolong the service life of the air bag 2, the side wall and the bottom wall of the annular groove 13 are in smooth transition connection, the air bag 2 is effectively protected, the phenomenon that the air bag 2 is punctured and scratched by a sharp corner is avoided, and the air bag 2 is made of rubber or silica gel materials with good expansion deformation and pressure resistance characteristics.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. A flange protective sleeve shell with good sealing performance is characterized by comprising a shell body (1) and an air bag (2); the novel gas-liquid separator is characterized in that a guide hole (12) which is provided with an opening (11) and axially penetrates through is formed in the shell body (1), an annular groove (13) which can contain a gas bag (2) is formed in the shell body, the gas bag (2) is fixed in the annular groove (13), the gas bag (2) is of an annular structure with one end open, the side wall of the gas bag (2) towards one side of the center of the guide hole (12) is inwards sunken to form a groove (21), the gas bag (2) is provided with a valve (22) for inflating and deflating, and the valve (22) extends out of the shell body (1) through the opening (11).
2. A good-sealing flange protective sleeve shell according to claim 1, characterized in that the side wall of the ring groove (13) is smoothly connected with the bottom wall.
3. A flange protective sleeve shell with good sealing performance according to claim 2, characterized in that the shell body (1) is formed by connecting a first main body and a second main body, one end of the first main body and one end of the second main body are hinged, and the other end of the first main body and the other end of the second main body are in threaded connection.
4. The good-sealing flange protective sleeve shell according to claim 3, further comprising an inflator pump, wherein the inflator pump is communicated with the air bag (2).
5. The good-sealing flange protection sleeve shell according to claim 4, further comprising a pressure maintaining pump and a pressure maintaining valve, wherein the pressure maintaining pump is communicated with the air bag (2), and the pressure maintaining valve is installed between the air bag (2) and the pressure maintaining pump.
6. A good-sealing flange protective casing according to any one of claims 1-5, characterized in that the air bag (2) is made of rubber or silicone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122573547.9U CN216382940U (en) | 2021-10-25 | 2021-10-25 | Flange protective sleeve shell with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122573547.9U CN216382940U (en) | 2021-10-25 | 2021-10-25 | Flange protective sleeve shell with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216382940U true CN216382940U (en) | 2022-04-26 |
Family
ID=81248329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122573547.9U Active CN216382940U (en) | 2021-10-25 | 2021-10-25 | Flange protective sleeve shell with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216382940U (en) |
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2021
- 2021-10-25 CN CN202122573547.9U patent/CN216382940U/en active Active
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