CN218599469U - Pipe section maintenance sealing device - Google Patents
Pipe section maintenance sealing device Download PDFInfo
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- CN218599469U CN218599469U CN202222573398.0U CN202222573398U CN218599469U CN 218599469 U CN218599469 U CN 218599469U CN 202222573398 U CN202222573398 U CN 202222573398U CN 218599469 U CN218599469 U CN 218599469U
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Abstract
The utility model provides a pipeline section maintenance sealing device. The device comprises a bottom sealing metal plate, a fixing sleeve, a sliding sleeve, a pressing sleeve, a top metal pressing plate, an axial O-shaped sealing ring, a radial O-shaped sealing ring, a locking bolt, a locking nut, a nitrogen charging pipe valve, a nitrogen charging pressure gauge and a handle. Through the welding of locking bolt on the bottom seal metal sheet, fill nitrogen pipe valve, fill nitrogen manometer connecting pipe and run through in bottom seal metal sheet and weld with it, installation axial "O" type sealing ring in the fixed sleeve recess, and link to each other with bottom seal metal sheet, sliding sleeve is located between radial "O" type sealing ring of first way and the radial "O" type sealing ring of second way, top metal sheet lower part is for compressing tightly the sleeve, connect on it and fill nitrogen pipe valve, fill nitrogen manometer pipe, promote sealed effect and labor efficiency, the operation is convenient, high durability and convenient use, and wide application range. The pipe section maintenance sealing device is suitable for being used as a pipe section maintenance sealing device.
Description
Technical Field
The utility model relates to a maintenance in pipeline field especially relates to a pipe section maintenance sealing device.
Background
During engineering construction, the white steel pipe section with high cost, thick wall and large diameter has strict maintenance specification and high maintenance technology level. When the white steel pipe section is manufactured, a compact anticorrosive layer is formed on the inner wall, so that the inner surface of the white steel pipe section is prevented from being damaged by acid, alkaline gas or other corrosive liquid.
However, the phenomenon that the inner surface of the white steel pipe is corroded when tap water enters the white steel pipe for a long time is caused once, a plurality of white steel pipes are scrapped, and the chlorine ion content in the tap water is high through testing, so that the economic loss is huge, and the precious production period is delayed.
The simple protection scheme of present white steel pipe is for using rubber or plastics shutoff at orificial both ends, and stricter protection scheme is at the inside gasbag that sets up of white steel pipe, because the sealed relatively poor frequent gas leakage of gasbag, need many times inspection, aerify, consequently the maintenance effect is poor, inefficiency, wastes time, difficultly moreover.
In view of the above, there is a need for a simple, efficient means of maintaining a sealed, expensive white steel tube.
Disclosure of Invention
In order to realize the high-quality maintenance of the white steel material pipeline section to the high cost, the wall thickness, great diameter, the utility model provides a pipeline section maintenance sealing device. The device is through being axial "O" type sealing ring between bottom seal metal sheet and the fixed sleeve, and the sliding sleeve links to each other with the compression sleeve through radial "O" type sealing ring of twice, and top metal pressing plate links to each other with locking bolt, nut, fills nitrogen gas into to the inside of pipeline section and maintains to nitrogen pipe valve, solves the sealed technical problem of pipeline section maintenance.
The utility model provides a scheme that technical problem adopted is:
the pipe section maintenance sealing device comprises a bottom sealing metal plate, a fixed sleeve, a sliding sleeve, a compression sleeve and a top metal pressing plate;
the bottom sealing metal plate is a circular plate embedded into the inner cavity of the pipe section, locking bolts in a circumferential array are welded on one side of the bottom sealing metal plate, connecting pipes for connecting a nitrogen charging pipe valve and a nitrogen charging pressure gauge are arranged on the same side of the locking bolts, and the connecting pipes penetrate through the bottom sealing metal plate and are welded and fixed with the bottom sealing metal plate;
the fixing sleeve is circumferentially arrayed with through holes corresponding to the locking bolts and the connecting pipes, and the fixing sleeve is assembled on the bottom sealing metal plate through the locking bolts; the side part of the fixed sleeve is provided with a groove for installing an axial O-shaped sealing ring, and axial sealing is formed between the bottom sealing metal plate and the fixed sleeve; a step assembly radial O-shaped sealing ring is arranged on the outer circumference of the fixed sleeve, and radial sealing is formed between the fixed sleeve and the inner cavity of the pipe section;
the sliding sleeve is sleeved on the step of the fixed sleeve and arranged between the two radial O-shaped sealing rings to form a first radial O-shaped sealing ring and a second radial O-shaped sealing ring which are continuous;
the pressing sleeve is circumferentially arrayed with through holes corresponding to the locking bolts and the connecting pipes, and the pressing sleeve is mutually assembled with the bottom sealing metal plate through the locking bolts; the compression sleeve is provided with a boss which is sleeved on the step of the fixed sleeve, and meanwhile, the boss extrudes the radial O-shaped sealing ring;
the top metal pressing plate is circumferentially arrayed with through holes corresponding to the locking bolts and the connecting pipes, and the top metal pressing plate is connected with the locking bolts through the locking nuts and the threads of the locking bolts, extrudes the compression sleeve and the sliding sleeve and is assembled on the bottom sealing metal plate together to form an integral structure.
In order to further solve the technical problem to be solved by the utility model, in the fixing sleeve provided by the utility model, the fixing sleeve is a stepped end cover, and the back cover of the side part of the fixing sleeve is provided with a groove embedded with an axial O-shaped sealing ring to realize axial sealing; the outer circumference of the end cover is provided with a step embedded radial O-shaped sealing ring to realize radial sealing.
Furthermore, the sliding sleeve is of a circular ring structure, the inner diameter of the sliding sleeve is in clearance fit with the step of the fixed sleeve for assembly, and the outer diameter of the sliding sleeve corresponds to the inner cavity of the pipe section; radial O-shaped sealing rings are extruded on two sides of the sliding sleeve.
Furthermore, the compression sleeve is a circular end cover, a locking bolt and a back cover through which the connecting pipe penetrates are arranged on the side part of the compression sleeve, a compression ring is arranged on the outer circle of the back cover, the inner diameter of the compression ring is in clearance fit with the step of the fixed sleeve for assembly, and the outer diameter of the compression ring corresponds to the inner cavity of the pipe section; the end part of the press ring is linked with the sliding sleeve to extrude the radial O-shaped sealing ring.
The utility model has the advantages of positive effect, because the utility model discloses a locking bolt welding is on the bottom seal metal sheet, fill the nitrogen pipe valve, fill nitrogen manometer connecting pipe and run through in bottom seal metal sheet and weld with it, installation axial "O" type sealing ring in the fixed sleeve recess, and link to each other with the bottom seal metal sheet, sliding sleeve is located between radial "O" type sealing ring of first way and the radial "O" type sealing ring of second way, top metal sheet lower part is for compressing tightly the sleeve, connect on it and fill the nitrogen pipe valve, fill the nitrogen manometer pipe, promote sealed effect, improve labor efficiency, the simple operation, high durability and convenient use, it is expensive to the cost, the thick wall, the sealed maintenance of the white steel material pipeline section high quality maintenance of great diameter is sealed and ordinary pipeline section is sealed all fit for. The pipe section maintenance sealing device is suitable for being used as a pipe section maintenance sealing device.
Drawings
FIG. 1 is a front view of the half-section of the present invention;
fig. 2 is a side view of the present invention;
figure 3 is the utility model discloses install back main vision half-section picture.
In the figure, 1, a handle, 2, a locking bolt, 3, an axial O-shaped sealing ring, 4, a bottom sealing metal plate, 5, a fixed sleeve, 6, a sliding sleeve, 7, a radial O-shaped sealing ring, 8, a pressing sleeve, 9, a top metal pressing plate, 10, a nitrogen charging pipe valve, 11, a nitrogen charging pressure gauge and 12, a locking nut.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present invention are shown in the drawings.
As shown in the figure, the pipe section maintenance sealing device comprises a bottom sealing metal plate 4, a fixed sleeve 5, a sliding sleeve 6, a pressing sleeve 8, a top metal pressing plate 9, an axial O-shaped sealing ring 3, a radial O-shaped sealing ring 7, a locking bolt 2, a locking nut 12, a nitrogen charging pipe valve 10, a nitrogen charging pressure gauge 11 and a handle 1;
the bottom sealing metal plate 4 is a circular plate embedded into the inner cavity of the pipe section, a circumferential array of locking bolts 2 are welded on one side of the bottom sealing metal plate 4, a connecting pipe for connecting the nitrogen charging pipe valve 10 and the nitrogen charging pressure gauge 11 is arranged on the same side of the locking bolts 2, and the connecting pipe penetrates through the bottom sealing metal plate 4 and is welded and fixed with the bottom sealing metal plate;
through holes corresponding to the locking bolts 2 and the connecting pipes are arranged in a circumferential array of the fixing sleeve 5, and the fixing sleeve 5 is assembled on the bottom sealing metal plate 4 through the locking bolts 2; the side part of the fixed sleeve 5 is provided with a groove for installing an axial O-shaped sealing ring 3, and axial sealing is formed between the bottom sealing metal plate 4 and the fixed sleeve 5; a step assembly radial O-shaped sealing ring 7 is arranged on the outer circumference of the fixed sleeve 5, and radial sealing is formed between the fixed sleeve 5 and the inner cavity of the pipe section;
the sliding sleeve 6 is sleeved on the step of the fixed sleeve 5 and is arranged between the two radial O-shaped sealing rings 7 to form a first radial O-shaped sealing ring 7 and a second radial O-shaped sealing ring 7 which are continuous;
through holes corresponding to the locking bolts 2 and the connecting pipes are arranged in a circumferential array of the compression sleeve 8, and the compression sleeve 8 is mutually assembled with the bottom sealing metal plate 4 through the locking bolts 2; the compression sleeve 8 is provided with a boss which is sleeved on the step of the fixed sleeve 5, and meanwhile, the boss extrudes the radial O-shaped sealing ring 7;
the top metal pressing plate 9 is circumferentially arrayed with through holes corresponding to the locking bolts 2 and the connecting pipes, the top metal pressing plate 9 is connected with the locking bolts 2 through the locking nuts 12 in a threaded mode, the pressing sleeves 8 and the sliding sleeves 6 are extruded and assembled on the bottom sealing metal plate 4 together, and an integral structure is formed.
In order to ensure the stability of the structure of the utility model, one end of the locking bolt 2 is connected to the bottom sealing metal plate 4, and the other end thereof penetrates through the fixing sleeve 5, the compressing sleeve 8 and the top metal pressing plate 9 and is locked on the bottom sealing metal plate 4 through the locking nut 12; when the device is used for nitrogen-filled maintenance of a pipe section, a locking nut 12 on a top metal pressure plate 9 is locked, so that the top metal pressure plate 9, a bottom sealing metal plate 4, a fixing sleeve 5, a pressing sleeve 8 and a sliding sleeve 6 are enabled to simultaneously compress an axial O-shaped sealing ring 3 and a radial O-shaped sealing ring 7, and the device and the pipe section are in a sealing state in the axial direction and the radial direction.
In order to further ensure the stability of the structure of the utility model, the fixed sleeve 5 is a step end cover, and the back cover of the side part of the fixed sleeve is provided with a groove embedded with an axial O-shaped sealing ring 3 to realize axial sealing; a step is arranged on the outer circumference of the end cover and is embedded with a radial O-shaped sealing ring 7 to realize radial sealing.
In order to optimize the structure of the utility model, the sliding sleeve 6 is a circular ring structure, the inner diameter of the sliding sleeve is assembled with the step of the fixed sleeve 5 in a clearance fit way, and the outer diameter of the sliding sleeve corresponds to the inner cavity of the pipe section; radial O-shaped sealing rings 7 are extruded on two sides of the sliding sleeve 6.
In order to optimize the structure of the utility model, the compressing sleeve 8 is a circular end cover, the side part of the compressing sleeve is provided with the locking bolt 2 and a back cover through which the connecting pipe penetrates, the excircle of the back cover is provided with a compression ring, the inner diameter of the compression ring is assembled with the step of the fixed sleeve 5 in a clearance fit way, and the outer diameter of the compression ring corresponds to the inner cavity of the pipe section; the end of the press ring is linked with the sliding sleeve 6 to extrude the radial O-shaped sealing ring 7.
In order to further optimize the structure of the utility model, the top metal pressing plate 9 is a circular plate structure, and the handle 1 is arranged outside the top metal pressing plate, so that the installation is convenient; the connecting pipe of the penetrating nitrogen charging pipe valve 10 is connected with a nitrogen charging pipe valve 10, and the connecting pipe of the penetrating nitrogen charging pressure gauge 11 is connected with a nitrogen charging pressure gauge 11.
The utility model discloses a theory of operation:
an axial O-shaped sealing ring is arranged between a bottom sealing metal plate and a fixed sleeve of the pipe section maintenance sealing device, a sliding sleeve is connected with the fixed sleeve and a pressing sleeve through two radial O-shaped sealing rings, and a top metal pressing plate is connected with a nitrogen charging pipe valve, a nitrogen charging pressure gauge and a locking bolt.
And during nitrogen filling maintenance, the locking nut of the top metal pressure plate is locked, so that the top metal pressure plate, the bottom sealing metal plate and the sliding sleeve simultaneously compress the axial O-shaped sealing ring and the radial O-shaped sealing ring, and the pipe section maintenance sealing device and the white steel pipe section are in a sealing state in the axial direction and the radial direction. And opening a nitrogen filling pipe valve to fill nitrogen into the white steel pipe section, observing that a pressure gauge reaches the maintenance pressure of 0.05MPa, closing the valve, and finishing nitrogen filling maintenance.
The utility model discloses a working process:
(1) The locking bolt 2 is welded on the bottom sealing metal plate 4, and the connecting pipes of the nitrogen charging pipe valve 10 and the nitrogen charging pressure gauge 11 penetrate through and are welded with the bottom sealing metal plate 1.
(2) The axial O-shaped sealing ring 3 is arranged in a groove on a fixed sleeve 5 and is placed on a bottom sealing metal plate 4.
(3) A first radial O-shaped sealing ring 7 is arranged at a concave platform at the bottom of the fixed sleeve 5 and then sleeved into the sliding sleeve 6.
(4) A second radial O-ring seal 7 is mounted on the upper part of the sliding sleeve 6.
(5) The compression sleeve 8 is arranged on the second radial O-shaped sealing ring 7, and the top metal pressing plate 9 is arranged on the compression sleeve 8.
(6) The top metal pressure plate 9 is connected with a nitrogen charging pipe valve 10 and a nitrogen charging pressure gauge pipe 11.
(7) When nitrogen is filled for maintenance, the locking nut 12 on the top metal pressure plate 9 is locked, so that the top metal pressure plate 9, the bottom sealing metal plate 4 and the sliding sleeve 6 simultaneously compress the axial O-shaped sealing ring 3 and the radial O-shaped sealing ring 7, and the pipe section maintenance sealing device and the white steel pipe section are in a sealing state in the axial direction and the radial direction.
(8) And opening the nitrogen filling pipe valve 10 to fill nitrogen into the white steel pipe section, observing that the nitrogen filling pressure gauge 11 reaches the maintenance pressure of 0.05MPa, closing the valve, and finishing nitrogen filling maintenance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The pipe section maintenance sealing device is characterized in that: the method comprises the following steps:
the pipe fitting comprises a bottom sealing metal plate (4), wherein the bottom sealing metal plate (4) is a circular plate embedded into an inner cavity of a pipe section, locking bolts (2) in a circumferential array are welded on one side of the bottom sealing metal plate (4), connecting pipes for connecting a nitrogen filling pipe valve (10) and a nitrogen filling pressure gauge (11) are arranged on the same side of the locking bolts (2), and the connecting pipes penetrate through the bottom sealing metal plate (4) and are welded and fixed with the bottom sealing metal plate;
the fixing sleeve (5) is circumferentially arrayed with through holes corresponding to the locking bolts (2) and the connecting pipe, and the fixing sleeve (5) is assembled on the bottom sealing metal plate (4) through the locking bolts (2); a groove is formed in the side of the fixed sleeve (5) to mount an axial O-shaped sealing ring (3), and axial sealing is formed between the bottom sealing metal plate (4) and the fixed sleeve (5); a step assembly radial O-shaped sealing ring (7) is arranged on the outer circumference of the fixed sleeve (5), and radial sealing is formed between the fixed sleeve (5) and the inner cavity of the pipe section;
the sliding sleeve (6) is sleeved on the step of the fixed sleeve (5) and arranged between the two radial O-shaped sealing rings (7) to form a first radial O-shaped sealing ring and a second radial O-shaped sealing ring (7) which are continuous;
the pressing sleeve (8) is circumferentially arrayed with through holes corresponding to the locking bolts (2) and the connecting pipe, and the pressing sleeve (8) is mutually assembled with the bottom sealing metal plate (4) through the locking bolts (2); the compression sleeve (8) is provided with a boss which is sleeved on the step of the fixed sleeve (5), and meanwhile, the boss extrudes the radial O-shaped sealing ring (7); and
top metal pressing plate (9), top metal pressing plate (9) circumference array have with locking bolt (2) reach the corresponding through-hole of connecting pipe, top metal pressing plate (9) through lock nut (12) with the threaded connection of locking bolt (2), the extrusion compress tightly sleeve (8) and sliding sleeve (6), assemble in bottom seal metal sheet (4) jointly, form an overall structure.
2. The pipe section service seal of claim 1, wherein:
one end of the locking bolt (2) is connected to the bottom sealing metal plate (4), and the other end of the locking bolt penetrates through the fixing sleeve (5), the pressing sleeve (8) and the top metal pressing plate (9) and is locked on the bottom sealing metal plate (4) through the locking nut (12); when the device is used for nitrogen-filled maintenance of a pipe section, the locking nut (12) on the top metal pressure plate (9) is locked, so that the top metal pressure plate (9), the bottom sealing metal plate (4), the fixing sleeve (5), the pressing sleeve (8) and the sliding sleeve (6) are simultaneously compressed by the axial O-shaped sealing ring (3) and the radial O-shaped sealing ring (7), and the device and the pipe section are in a sealing state in the axial direction and the radial direction.
3. The pipe section service seal of claim 1, wherein:
the fixed sleeve (5) is a stepped end cover, and the back cover of the side part of the fixed sleeve is provided with a groove for embedding the axial O-shaped sealing ring (3) to realize axial sealing; the outer circumference of the end cover is provided with a step which is embedded with the radial O-shaped sealing ring (7) to realize radial sealing.
4. The pipe section service seal of claim 1, wherein:
the sliding sleeve (6) is of a circular ring structure, the inner diameter of the sliding sleeve is in clearance fit with the step of the fixed sleeve (5) for assembly, and the outer diameter of the sliding sleeve corresponds to the inner cavity of the pipe section; the radial O-shaped sealing rings (7) are extruded on two sides of the sliding sleeve (6).
5. The pipe section service seal of claim 1, wherein:
the compression sleeve (8) is a circular end cover, the side part of the compression sleeve is provided with a back cover through which the locking bolt (2) and the connecting pipe penetrate, the outer circle of the back cover is provided with a compression ring, the inner diameter of the compression ring is in clearance fit with the step of the fixed sleeve (5) for assembly, and the outer diameter of the compression ring corresponds to the inner cavity of the pipe section; the end part of the compression ring and the sliding sleeve (6) are in linkage extrusion with the radial O-shaped sealing ring (7).
6. The pipe section service seal of claim 1, wherein:
the top metal pressing plate (9) is of a circular plate structure, and a handle (1) is arranged on the outer side of the top metal pressing plate; the connecting pipe of the penetrating nitrogen charging pipe valve (10) is connected with the nitrogen charging pipe valve (10), and the connecting pipe of the penetrating nitrogen charging pressure gauge (11) is connected with the nitrogen charging pressure gauge (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222573398.0U CN218599469U (en) | 2022-09-28 | 2022-09-28 | Pipe section maintenance sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222573398.0U CN218599469U (en) | 2022-09-28 | 2022-09-28 | Pipe section maintenance sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218599469U true CN218599469U (en) | 2023-03-10 |
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ID=85399811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222573398.0U Active CN218599469U (en) | 2022-09-28 | 2022-09-28 | Pipe section maintenance sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218599469U (en) |
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2022
- 2022-09-28 CN CN202222573398.0U patent/CN218599469U/en active Active
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