CN212595608U - Manhole with flexible socket structure - Google Patents
Manhole with flexible socket structure Download PDFInfo
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- CN212595608U CN212595608U CN202020642662.XU CN202020642662U CN212595608U CN 212595608 U CN212595608 U CN 212595608U CN 202020642662 U CN202020642662 U CN 202020642662U CN 212595608 U CN212595608 U CN 212595608U
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- manhole
- baffle
- outer sleeve
- flange
- wall
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Abstract
The utility model relates to a flexible socket joint type structure manhole, which comprises a manhole connecting pipe, a manhole flange arranged at the upper end of the manhole connecting pipe and a manhole flange cover matched with the manhole flange, wherein the inner wall of the manhole flange cover is connected with an inner sleeve pipe, the periphery of the inner sleeve pipe is provided with an outer sleeve pipe, a flexible socket joint type structure is arranged between the inner sleeve pipe and the outer sleeve pipe, and the lower end of the outer sleeve pipe is also connected with an outer sleeve baffle; the inner wall of the manhole flange is also connected with a lining baffle plate parallel to the outer sleeve baffle plate, a flexible graphite plate is arranged between the lining baffle plate and the outer sleeve baffle plate, and the outer sleeve baffle plate and the flexible graphite plate and the lining baffle plate are in close contact; the inner wall of the manhole connecting pipe, the inner wall of the manhole flange and the inner wall of the outer sleeve baffle are all provided with heat-insulating wear-resistant linings. The utility model provides a thereby easily produce the problem that coking phenomenon adhesion leads to the manhole to open the difficulty between manhole takeover and the outer tube, reduced the degree of difficulty that the manhole was opened, shortened the repair time, promoted the operating duration of device.
Description
Technical Field
The utility model belongs to the technical field of the manhole, concretely relates to flexible socket joint formula structure manhole.
Background
All can set up a manhole on each equipment in the petrochemical industry catalytic cracking unit and be used for making things convenient for inspection and internals maintenance change, but the manhole of traditional design is because it has thermal-insulated and wear-resisting function to require, and catalytic cracking equipment manhole in the past all adopts to set up single interior bushing, and interior bushing bottom sets up the baffle to lining laying, as shown in fig. 1 and fig. 2. The gap between the lining cylinder and the manhole connecting pipe is filled with asbestos fiber rope. Because the working temperature in the catalytic cracking equipment is generally above 500 ℃, the asbestos fiber rope can often deform and even be damaged under the high-temperature working condition, so that gaps exist. The medium is mostly the mixture of catalyst and oil gas, the particles are fine, the particles enter the gap between the manhole connecting pipe and the lining barrel, the manhole connecting pipe is easily overheated, and the particles are coked in the gap after being cooled. In a duty cycle, in the mixture along with a large amount of oil gas and catalyst entered into the gap, make the manhole take over with the lining barrel adhesion together, the manhole is opened very difficultly when leading to the maintenance of shutting down, causes the manhole to warp and damage often when the brute force is opened, has also prolonged the repair time simultaneously, makes the device operating duration shorten greatly.
Disclosure of Invention
In order to solve the problem, the utility model provides a flexible socket joint formula structure manhole has solved thereby the easy coking phenomenon that produces between manhole takeover and the outer tube adhesion and has leaded to the problem that the difficulty was opened to the manhole when the maintenance was stopped to lead to together, has reduced the degree of difficulty that the manhole was opened, has shortened the repair time, has promoted the operating duration of device.
The purpose of the utility model and the technical problem thereof are realized by adopting the following technical scheme. According to the utility model provides a flexible socket joint formula structure manhole, including the manhole takeover, set up in manhole takeover upper end and with the manhole flange that the manhole takeover is connected, with the manhole flange lid of manhole flange adaptation, be provided with the manhole gasket between manhole flange and the manhole flange lid, manhole flange lid inner wall is connected with the inner tube, this inner tube periphery is provided with the detachable outer tube, is provided with flexible socket joint formula structure between inner tube and the outer tube, flexible socket joint formula structure include encircle first baffle and the second baffle that inner tube outer wall circumference set up, encircle the third baffle that outer tube inner wall circumference set up and fill the flexible filler between second baffle and third baffle; the first baffle plate is positioned below the second baffle plate, and the third baffle plate is positioned above the first baffle plate and is in close contact with the first baffle plate; the lower end of the outer sleeve is also connected with an outer sleeve baffle which is inclined towards the inner part of the manhole and is a conical surface; the inner wall of the manhole flange is also connected with a lining baffle which is inclined towards the inside of the manhole and is a conical surface and parallel to the outer sleeve baffle, a flexible graphite plate which is a conical surface and parallel to the outer sleeve baffle is also arranged between the lining baffle and the outer sleeve baffle, and the outer sleeve baffle and the flexible graphite plate and the lining baffle are in close contact; the inner wall of the manhole connecting pipe, the inner wall of the manhole flange and the inner wall of the outer sleeve baffle are all provided with heat-insulating wear-resistant linings.
Furthermore, the manhole flange and the manhole connecting pipe, the manhole flange cover and the inner sleeve, the outer sleeve and the outer sleeve baffle and the inner wall of the manhole flange and the lining baffle are welded and fixed.
Furthermore, the flexible filler is made of asbestos fiber or asbestos fiber rope or asbestos fiber board.
Furthermore, the first baffle plate, the second baffle plate and the inner sleeve are integrally formed.
Furthermore, at least one of the first baffle plate and the second baffle plate is welded and fixed with the inner sleeve.
Furthermore, the third baffle and the outer sleeve are integrally formed, or the third baffle and the outer sleeve are fixedly welded.
Further, the flexible graphite plate is detachably arranged between the outer sleeve baffle plate and the lining baffle plate.
The beneficial effects of the utility model reside in that:
the utility model discloses a setting is the lining plate washer of conical surface and the overcoat plate washer that is the conical surface has reduced the area of contact with oil gas, including as filler and setting, flexible socket joint formula structure between the outer tube makes between overcoat plate washer and the flexible graphite board and between flexible graphite board and the lining plate washer all inseparable crimping through using the better flexible graphite board of anti high temperature performance, has avoided the entering of catalyst and oil-gas mixture granule to avoid coking phenomenon to take place. The flexible filler is filled between the second baffle and the third baffle, so that the outer sleeve baffle is ensured to have enough pressure to be tightly attached to the flexible graphite plate, and the flexible graphite plate is well protected and is not easy to be damaged. Through the utility model provides a thereby easily produce coking phenomenon adhesion and lead to the problem that the difficulty was opened to the manhole when the maintenance was stopped to the time of leading to between manhole takeover and the outer tube, the manhole flange lid is opened easily. Simultaneously through the effect of accepting of first baffle to the third baffle, the first baffle accepts the third baffle and carries the outer tube and upwards open when opening the manhole flange cover, further reduces the degree of difficulty that the manhole was opened, makes manhole non-deformable or damage, shortens the repair time, hoisting device operating duration.
Drawings
Figure 1 is a schematic view of a prior art manhole structure.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Figure 3 is the manhole structure schematic diagram of the utility model.
Fig. 4 is an enlarged view of a portion B in fig. 3.
[ reference numerals ]:
1-manhole connecting pipe, 2-manhole flange, 3-manhole flange cover, 4-manhole gasket, 5-inner sleeve, 6-outer sleeve, 7-first baffle, 8-second baffle, 9-third baffle, 10-flexible filler, 11-outer sleeve baffle, 12-lining baffle, 13-flexible graphite plate, 14-heat-insulating wear-resistant lining, 15-inner lining cylinder, 16-partition plate, 17-lining, 18-asbestos fiber rope and 19-equipment outer wall.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given to a manhole with a flexible socket structure according to the present invention, and its specific embodiments, features and effects with reference to the accompanying drawings.
The utility model discloses a manhole takeover 1, set up in manhole flange 2 of manhole takeover upper end, with the manhole flange lid 3 of manhole flange adaptation, welded fastening between manhole flange and the manhole takeover, be provided with manhole gasket 4 between manhole flange and the manhole flange lid, manhole flange lid inner wall welding has interior sleeve pipe 5, the outer circumference detachably that encircles this interior sleeve pipe is provided with outer tube 6, be provided with flexible socket joint formula structure between interior sleeve pipe and the outer tube, flexible socket joint formula structure include first baffle 7 and second baffle 8 that encircle inner sleeve pipe outer wall circumference and set up, encircle the third baffle 9 that outer sleeve pipe inner wall circumference set up and fill the flexible filler 10 between second baffle and third baffle; the first baffle is positioned below the second baffle, and the third baffle is positioned between the first baffle and the second baffle and is in close contact with the first baffle. The lower end of the outer sleeve is also welded with an outer sleeve baffle plate 11, and the outer sleeve baffle plate 11 inclines towards the inside of the manhole to form a conical surface; a lining baffle plate 12 is welded on the inner wall of the manhole flange, the lining baffle plate 12 is also inclined towards the inside of the manhole to form a conical surface and is parallel to the outer sleeve baffle plate, a flexible graphite plate 13 is detachably arranged between the lining baffle plate and the outer sleeve baffle plate, the flexible graphite plate 13 is conical and is parallel to the outer sleeve baffle plate, and the outer sleeve baffle plate and the flexible graphite plate and the lining baffle plate are in close contact; the inner wall of the manhole connecting pipe, the inner wall of the manhole flange and the inner wall of the outer sleeve baffle are all provided with heat-insulating wear-resistant linings 14.
The first baffle can be formed by flanging the bottom of the inner sleeve outwards, can be integrally formed with the inner sleeve, and can also be welded and fixed with the inner sleeve. The second baffle plate and the inner sleeve can be integrally formed or can be welded and fixed with each other. The third baffle plate and the outer sleeve can be integrally formed or can be welded and fixed with each other. The inner sleeve and the outer sleeve are cylindrical, and the first baffle, the second baffle and the third baffle are annular and parallel to each other. The flexible filler is filled between the second baffle and the third baffle, so that the gravity of the manhole flange cover extrudes the flexible filler through the second baffle and then acts on the third baffle, and the third baffle and the outer sleeve baffle are fixed with the outer sleeve, so that the gravity of the manhole flange cover finally acts on the outer sleeve baffle to tightly press the outer sleeve baffle on the flexible graphite plate and tightly press the flexible graphite plate and the lining baffle.
The flexible filler can be asbestos fiber or asbestos fiber rope or asbestos fiber board. The inner sleeve, the outer sleeve, the first baffle, the second baffle, the third baffle, the outer sleeve baffle and the lining baffle are all made of metal materials.
The utility model discloses a manhole structure is when using, arrange the flexible graphite board in earlier on the lining plate washer, then make the flexible graphite board press from both sides between overcoat plate washer and lining plate washer on assembling the manhole flange lid to the manhole flange, manhole flange lid's action of gravity extrusion flexible filler rethread third baffle acts on outer tube and overcoat plate washer and makes the overcoat plate washer tightly press on the flexible graphite board and make also inseparable crimping between flexible graphite board and the lining plate washer, so that, equal in close contact with between overcoat plate washer and the flexible graphite board and between flexible graphite board and the lining plate washer, the mixture granule of catalyst and oil gas can't pass through between overcoat plate washer and the lining plate washer, the coking phenomenon appears in the gap between manhole takeover or manhole flange inner wall and the outer tube has just also been avoided.
When manhole flange cover is opened to needs, because the third baffle is located first baffle, the pulling force of applying to manhole flange cover acts on the third baffle through first baffle, and rethread third baffle acts on outer tube and overcoat plate washer, thereby easily pulls out outer tube and overcoat plate washer along with manhole flange cover under the carrying of first baffle and open the manhole.
Through the utility model provides a thereby easily produce coking phenomenon between manhole takeover and the outer tube and glue the problem that the difficulty was opened to the manhole when leading to the maintenance of shutting down together, the utility model discloses a setting is the lining plate washer of the conical surface and the overcoat plate washer that is the conical surface has reduced the area of contact with oil gas, including as filler and setting, flexible socket joint formula structure between the outer tube makes between overcoat plate washer and the flexible graphite board and between flexible graphite board and the lining plate washer all inseparable crimping through using the better flexible graphite board of anti high temperature performance, has avoided the mixture granule of catalyst and oil gas to get into to avoid coking phenomenon to take place, make manhole flange lid open easily. Simultaneously including the sleeve pipe lower extreme setting have the first baffle of effect of accepting to the third baffle, carry the outer tube through first baffle to the effect of accepting of third baffle when opening the manhole flange lid and open, further reduce the degree of difficulty that the manhole was opened, shorten repair time, hoisting device operating duration.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any person skilled in the art will not depart from the technical scope of the present invention, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the present invention.
Claims (7)
1. A manhole with a flexible socket joint type structure comprises a manhole connecting pipe, a manhole flange and a manhole flange cover, wherein the manhole flange is arranged at the upper end of the manhole connecting pipe and is connected with the manhole connecting pipe, the manhole flange cover is matched with the manhole flange, and a manhole gasket is arranged between the manhole flange and the manhole flange cover; the first baffle plate is positioned below the second baffle plate, and the third baffle plate is positioned above the first baffle plate and is in close contact with the first baffle plate; the lower end of the outer sleeve is also connected with an outer sleeve baffle which is inclined towards the inner part of the manhole and is a conical surface; the inner wall of the manhole flange is also connected with a lining baffle which is inclined towards the inside of the manhole and is a conical surface and parallel to the outer sleeve baffle, a flexible graphite plate which is a conical surface and parallel to the outer sleeve baffle is also arranged between the lining baffle and the outer sleeve baffle, and the outer sleeve baffle and the flexible graphite plate and the lining baffle are in close contact; the inner wall of the manhole connecting pipe, the inner wall of the manhole flange and the inner wall of the outer sleeve baffle are all provided with heat-insulating wear-resistant linings.
2. A manhole of a flexible socket structure according to claim 1, wherein the manhole flange and the manhole connecting pipe, the manhole flange cover and the inner sleeve, the outer sleeve and the outer sleeve baffle, and the inner wall of the manhole flange and the lining baffle are welded and fixed.
3. The flexible socket structure manhole of claim 1, wherein said flexible filler is selected from asbestos fiber.
4. The flexible socket structure manhole of claim 1, wherein the first and second baffles are integrally formed with the inner sleeve.
5. The flexible socket structure manhole of claim 1, wherein at least one of the first baffle and the second baffle is welded to the inner casing.
6. The manhole of claim 1, wherein the third baffle is integrally formed with the outer casing, or the third baffle is welded to the outer casing.
7. The flexible socket structure manhole of claim 1, wherein the flexible graphite sheet is removably positioned between the outer jacket flap and the liner flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642662.XU CN212595608U (en) | 2020-04-24 | 2020-04-24 | Manhole with flexible socket structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642662.XU CN212595608U (en) | 2020-04-24 | 2020-04-24 | Manhole with flexible socket structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212595608U true CN212595608U (en) | 2021-02-26 |
Family
ID=74711299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020642662.XU Active CN212595608U (en) | 2020-04-24 | 2020-04-24 | Manhole with flexible socket structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212595608U (en) |
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2020
- 2020-04-24 CN CN202020642662.XU patent/CN212595608U/en active Active
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