CN215795984U - Novel pressure relief manhole - Google Patents
Novel pressure relief manhole Download PDFInfo
- Publication number
- CN215795984U CN215795984U CN202122032332.6U CN202122032332U CN215795984U CN 215795984 U CN215795984 U CN 215795984U CN 202122032332 U CN202122032332 U CN 202122032332U CN 215795984 U CN215795984 U CN 215795984U
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- China
- Prior art keywords
- pressure relief
- manhole
- wall
- flange
- blind plate
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000003466 welding Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a novel pressure relief manhole, which comprises a flat welding flange and a pressure relief cylinder body, wherein the flat welding flange is arranged at the lower end of the pressure relief cylinder body, three small square plates are equidistantly arranged on the circular outer wall of the position, close to the middle position, of the pressure relief cylinder body, a customized flange is arranged at the upper end of the pressure relief cylinder body, a sealing ring is arranged on the outer wall of the upper end of the customized flange, a discharge blind plate is arranged at the upper end of the sealing ring, a novel pressure relief manhole is designed for carrying out pressure relief operation on an equipment tank body needing pressure relief, the novel pressure relief manhole is arranged on the tank body through the flat welding flange, kilogram pressure and materials can be selected according to customer requirements, so that the whole pressure relief manhole can be flexibly installed and used, the novel pressure relief manhole can automatically seal after pressure relief is finished, and external dirt is prevented from invading into the tank body needing pressure relief, thereby can increase the pressure release effect of whole pressure release manhole.
Description
Technical Field
The utility model belongs to the technical field related to pressure relief manholes, and particularly relates to a novel pressure relief manhole.
Background
The pressure relief manhole is a rapid pressure relief device, the technical performance and the material of main parts of the pressure relief manhole are the same as those of the breathing manhole, the pressure relief manhole is a safe emergency ventilation device which is installed on equipment such as petrochemical engineering and storage tanks, the pressure relief manhole is usually matched with a breathing valve installed on a tank top for use, normal pressure in the tank is maintained, accidents caused by damage to the storage tank when sudden overpressure or vacuum in the tank is caused by accident can be avoided, and the pressure relief manhole has the advantages of constant pressure discharge, constant pressure suction, flexible type closing, compact structure, good sealing performance, safety, reliability and the like.
The existing pressure relief manhole technology has the following problems: current pressure release manhole pressure release is comparatively single with the result of use, and whole pressure release manhole is open, so when the pressure release, the pressure gas of department of being released can directly be discharged away through the pressure release manhole, and after the pressure release was accomplished, the pressure release manhole still is open, so outside air and dirty can be easily invaded the equipment tank body that needs were released the pressure through the manhole opening in to can influence behind the pressure release by pressure release equipment's safety in utilization and stability in use.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a novel pressure relief manhole, which is used to solve the problem that after the pressure relief proposed in the background art is completed, the conventional pressure relief manhole is still open, so that external air and dirt can easily intrude into an equipment tank to be relieved of pressure through a manhole opening, thereby affecting the safety and stability of the relieved equipment after the pressure relief.
In order to achieve the purpose, the utility model provides the following technical scheme: a novel pressure relief manhole comprises a flat welding flange and a pressure relief barrel body, wherein the flat welding flange is installed at the lower end of the pressure relief barrel body, three small square plates are equidistantly arranged on the circular outer wall of the position, close to the middle position, of the pressure relief barrel body, a customized flange is arranged at the upper end of the pressure relief barrel body, a sealing ring is arranged on the outer wall of the upper end of the customized flange, a discharge blind plate is arranged at the upper end of the sealing ring, a return cross beam is arranged on the position, close to the transverse inner part of the upper side, of the pressure relief barrel body, a connecting hole penetrates through the inner part of the center of the return cross beam, a return spring is connected at the center of the lower end of the discharge blind plate, a counterweight device is arranged on the outer wall of the center of the upper end of the discharge blind plate, an elliptical sealing head is arranged on the upper side of the discharge blind plate, three L-shaped connecting plates are equidistantly arranged on the outer wall of the lower end of the outermost side of the elliptical sealing head, and a hanging ring is arranged on the outer wall of the center of the upper end of the elliptical sealing head.
Preferably, all through welded fastening connection, three between pressure release barrel and the three little square plate and between oval head and the three L type connecting plate all through screw fixed connection between L type connecting plate and the three little square plate.
Preferably, a plurality of mounting holes are penetrated to the inside equidistance of flush joint flange, the flush joint flange passes through a plurality of mounting holes and mounting screw to be fixed on the jar body that needs are let out the pressure, the circular inner wall parallel and level of flush joint flange and pressure release barrel.
Preferably, the sealing washer adopts the silicon rubber to make, the sealing washer passes through the adhesive and connects on the upper end outer wall of customization flange, the circular diameter of the blind plate of releasing is greater than the outside diameter of customization flange, but the laminating of the lower extreme outer wall of the blind plate of releasing can be complete on the upper end outer wall of sealing washer.
Preferably, the counterweight device can be changed into different weights according to the discharge pressure, the lower end of the return spring is fixed in the connecting hole through threads, and the return spring can accurately pull back the discharge blind plate to reset.
Compared with the prior art, the utility model provides a novel pressure relief manhole, which has the following beneficial effects:
1. the novel pressure relief manhole is designed for performing pressure relief operation on an equipment tank body needing pressure relief, is mounted on the tank body through a flat welding flange, and kilogram pressure and materials can be selected according to customer requirements, so that the whole pressure relief manhole can be flexibly mounted and used, the novel pressure relief manhole can automatically seal after pressure relief is completed, external dirt is prevented from invading into the tank body needing pressure relief, and the pressure relief effect of the whole pressure relief manhole can be improved;
2. the pressure relief manhole of the utility model is mainly composed of a flat welding flange, a pressure relief cylinder body, an elliptical sealing head, a customized flange, a relief blind plate, a return cross beam, a return spring and a counterweight device, wherein the pressure relief cylinder body is the main body of the whole pressure relief manhole, the pressure relief cylinder body is arranged on a tank body to be relieved through the flat welding flange at the lower end, the return spring at the center of the lower end of the relief blind plate is fixed on the return cross beam in the pressure relief cylinder body through threads, the counterweight device at the center of the top end of the relief blind plate can change different weights according to different relief pressures, the elliptical sealing head covers the outer side of the top end of the relief blind plate and plays protection roles of preventing rain, falling objects and the like, when the pressure relief tank body is required to be relieved, the released gas can pass through the pressure relief cylinder body and outwards impact the relief blind plate, thereby the pressure relief can be normally carried out, and the return blind plate can be pulled back by the return spring after the pressure relief is finished, make the blind plate of releasing accurately carry out the playback, the blind plate of releasing after the playback then can laminate on the sealing washer on customization flange top, thereby seal the opening of pressure release barrel, thereby seal whole pressure release manhole, when the pressure release once more, the gas of releasing then can be through the automatic blind plate of releasing that dashes open sealing condition of the pressure of releasing, thereby can carry out the pressure release at any time, return spring and counter weight device mutually support after the pressure release is accomplished and come the automatic blind plate of pulling back of releasing, make the blind plate of releasing seal the barrel of releasing again, thereby reach automatic pressure release and automatic closed pressure release open-ended purpose.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:
fig. 1 is a schematic structural view of a rear plane of a novel pressure relief manhole after installation;
fig. 2 is a schematic view of a novel pressure relief manhole plane parsing structure provided by the present invention;
FIG. 3 is a schematic view of a three-dimensional structure of a pressure relief cylinder according to the present invention;
fig. 4 is a schematic perspective view of a relief blind plate according to the present invention;
in the figure: 1. a small square plate; 2. flat welding of the flange; 3. a pressure relief cylinder; 4. an elliptical end enclosure; 5. a hoisting ring; 6. an L-shaped connecting plate; 7. customizing a flange; 8. a bleeding blind plate; 9. a seal ring; 10. connecting holes; 11. a return cross beam; 12. a return spring; 13. a counterweight device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a novel pressure relief manhole comprises a flat welding flange 2 and a pressure relief barrel 3, wherein the flat welding flange 2 is installed at the lower end of the pressure relief barrel 3, a plurality of mounting holes penetrate through the interior of the flat welding flange 2 at equal intervals, the flat welding flange 2 is fixed on a tank body needing to be relieved of pressure through the mounting holes and mounting screws, the flat welding flange 2 is flush with the circular inner wall of the pressure relief barrel 3, the inner walls of the flat welding flange 2 and the pressure relief barrel 3 are flush, and the air flow circulation can be increased, so that the pressure relief effect of the whole pressure relief manhole is increased, three small square plates 1 are equidistantly arranged on the circular outer wall of the position, close to the middle position, of the pressure relief barrel 3, a customized flange 7 is arranged at the upper end of the pressure relief barrel 3, a sealing ring 9 is arranged on the outer wall of the upper end of the customized flange 7, the sealing ring 9 is made of silicon rubber, the sealing ring 9 is connected to the outer wall of the upper end of the customized flange 7 through an adhesive, and the circular diameter of a relief blind plate 8 is larger than the external diameter of the customized flange 7, the outer wall of the lower end of the discharge blind plate 8 can be completely attached to the outer wall of the upper end of the sealing ring 9, the diameter of the discharge blind plate 8 is larger than that between the customized flanges 7 and can be accurately sealed on the top ends of the customized flanges 7 and the sealing ring 9 when in return, so that the discharge blind plate 8 can be ensured to accurately seal a pressure relief opening when not in work, the upper end of the sealing ring 9 is provided with the discharge blind plate 8, the pressure relief cylinder 3 is provided with a return cross beam 11 close to the transverse inner part of the upper side, a connecting hole 10 penetrates through the inner part of the center of the return cross beam 11, the center of the lower end of the discharge blind plate 8 is connected with a return spring 12, the lower end of the return spring 12 is connected to the inner part of the connecting hole 10, the outer wall of the center of the upper end of the discharge blind plate 8 is provided with a counterweight device 13, the upper side of the discharge blind plate 8 is provided with an elliptical head 4, the elliptical head 4 covers the outer side of the top end of the discharge blind plate 8 and plays a role in protection of preventing rain, preventing objects from falling and the like, three L-shaped connecting plates 6 are equidistantly arranged on the outer wall of the lower end of the outermost side of the elliptical sealing head 4, a lifting ring 5 is arranged on the outer wall of the center of the upper end of the elliptical sealing head 4, the pressure relief cylinder 3 and the three small square plates 1 and the elliptical sealing head 4 and the three L-shaped connecting plates 6 are fixedly connected by welding, the three L-shaped connecting plates 6 and the three small square plates 1 are fixedly connected by screws, a counterweight device 13 can change different weights according to relief pressure, the lower end of a return spring 12 is fixed in a connecting hole 10 by threads, the return spring 12 can accurately pull back the relief blind plate 8 for resetting, when the pressure relief cylinder body needs pressure relief, the released gas can pass through the pressure relief cylinder 3 and outwards impact the relief blind plate 8, so that the pressure relief can be normally performed, and after the pressure relief is completed, the return spring 12 can pull back the relief blind plate 8 to accurately reset the relief blind plate 8, the blind board 8 of releasing after playback then can laminate on the sealing washer 9 on customization flange 7 top, thereby seal the opening of pressure release barrel 3, thereby seal whole pressure release manhole, when the pressure release once more, the gas of releasing then can be through the automatic blind board 8 of releasing that dashes open sealing state of the pressure of releasing, thereby can carry out the pressure release at any time, return spring 12 and counter weight device 13 after the pressure release is accomplished are mutually supported and are come the automatic blind board 8 of pulling back of releasing, make the blind board 8 of releasing seal the barrel again, thereby reach automatic pressure release and the open-ended purpose of automatic pressure release.
The working principle and the using process of the utility model are as follows: after the installation, firstly, a pressure relief cylinder 3 needs to be installed on an equipment tank body needing pressure relief through a flat welding flange 2 at the bottom, then a sealing ring 9 needs to be bonded on the outer wall of the upper end of a customized flange 7 at the top end of the pressure relief cylinder 3, then a discharge blind plate 8 needs to be installed on the upper side of the customized flange 7, when the installation is carried out, a return spring 12 at the center of the lower end of the discharge blind plate 8 needs to be installed in a connecting hole 10 in the center of a return cross beam 11 through threads, then the weight of a counterweight device 13 at the top end of the discharge blind plate 8 is adjusted, after the adjustment is carried out, an oval seal head 4 needs to be installed outside the top end of the discharge blind plate 8, when the oval seal head 4 is installed, three L-shaped connecting plates 6 at the bottom of the oval seal head 4 need to be respectively attached to three small square plates 1 on the circular outer wall of the pressure relief cylinder 3, and the L-shaped connecting plates 6 and the small square plates 1 are fixed through screws, then can normally use whole pressure release manhole to carry out automatic pressure release operation, when the pressure release jar body needs the pressure release, the gas of releasing can be through pressure release barrel 3 and outwards break open the blind plate 8 of releasing, thereby can normally carry out the pressure release, and after the pressure release was accomplished, return spring 12 then can pull back the blind plate 8 of releasing, make the blind plate 8 of releasing accurately playback, the blind plate 8 of releasing after playback then can laminate on the sealing washer 9 on customization flange 7 top, thereby seal the opening of pressure release barrel 3, thereby seal whole pressure release manhole.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a novel pressure release manhole, includes flush joint flange (2) and pressure release barrel (3), its characterized in that: the flat welding flange (2) is arranged at the lower end of the pressure relief barrel body (3), three small square plates (1) are arranged on the circular outer wall of the position, close to the middle position, of the pressure relief barrel body (3) at equal intervals, a customized flange (7) is arranged at the upper end of the pressure relief barrel body (3), a sealing ring (9) is arranged on the outer wall of the upper end of the customized flange (7), a discharge blind plate (8) is arranged at the upper end of the sealing ring (9), a return cross beam (11) is arranged on the upper side of the pressure relief barrel body (3) close to the transverse inner part, a connecting hole (10) penetrates through the center of the return cross beam (11), a return spring (12) is connected to the center of the lower end of the discharge blind plate (8), the lower end of the return spring (12) is connected to the inner part of the connecting hole (10), and a counterweight device (13) is arranged on the outer wall of the center of the upper end of the discharge blind plate (8), the upper side of the discharge blind plate (8) is provided with an elliptical seal head (4), three L-shaped connecting plates (6) are equidistantly arranged on the outer wall of the lower end of the outermost side of the elliptical seal head (4), and a hanging ring (5) is arranged on the outer wall of the center of the upper end of the elliptical seal head (4).
2. The novel pressure relief manhole as claimed in claim 1, wherein: all through welded fixed connection, three between pressure release barrel (3) and three little square plate (1) and between oval head (4) and three L type connecting plate (6) all through screw fixed connection between L type connecting plate (6) and three little square plate (1).
3. The novel pressure relief manhole as claimed in claim 1, wherein: the inside equidistance of flush joint flange (2) runs through and has a plurality of mounting holes, flush joint flange (2) are fixed on the jar body that needs are let out pressure through a plurality of mounting holes and installation screw, the circular inner wall parallel and level of flush joint flange (2) and pressure release barrel (3).
4. The novel pressure relief manhole as claimed in claim 1, wherein: sealing washer (9) adopt the silicon rubber to make, sealing washer (9) are connected on the upper end outer wall of customization flange (7) through the adhesive, the circular diameter of blind plate (8) of bleeding is greater than the outside diameter of customization flange (7), but the laminating of the lower extreme outer wall of blind plate (8) of bleeding can be complete is on the upper end outer wall of sealing washer (9).
5. The novel pressure relief manhole as claimed in claim 1, wherein: different weights can be replaced by the counterweight device (13) according to the discharge pressure, the lower end of the return spring (12) is fixed in the connecting hole (10) through threads, and the return spring (12) can accurately pull back the discharge blind plate (8) to reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122032332.6U CN215795984U (en) | 2021-08-26 | 2021-08-26 | Novel pressure relief manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122032332.6U CN215795984U (en) | 2021-08-26 | 2021-08-26 | Novel pressure relief manhole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215795984U true CN215795984U (en) | 2022-02-11 |
Family
ID=80151876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122032332.6U Expired - Fee Related CN215795984U (en) | 2021-08-26 | 2021-08-26 | Novel pressure relief manhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215795984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115072203A (en) * | 2022-07-28 | 2022-09-20 | 捷达消防科技（苏州）股份有限公司 | Manhole cover structure of liquid storage tank |
-
2021
- 2021-08-26 CN CN202122032332.6U patent/CN215795984U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115072203A (en) * | 2022-07-28 | 2022-09-20 | 捷达消防科技（苏州）股份有限公司 | Manhole cover structure of liquid storage tank |
| CN115072203B (en) * | 2022-07-28 | 2024-02-06 | 捷达消防科技（苏州）股份有限公司 | Manhole cover structure of liquid storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220211 |