CN204573080U - A kind of for pressing self tightening manhole structure in the double-layer seal of pressurized container - Google Patents
A kind of for pressing self tightening manhole structure in the double-layer seal of pressurized container Download PDFInfo
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- CN204573080U CN204573080U CN201520144941.2U CN201520144941U CN204573080U CN 204573080 U CN204573080 U CN 204573080U CN 201520144941 U CN201520144941 U CN 201520144941U CN 204573080 U CN204573080 U CN 204573080U
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- manhole cover
- manhole
- bolt
- pressurized container
- container
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Abstract
The utility model discloses a kind of for pressing self tightening manhole structure in the double-layer seal of pressurized container, described pressurized container is high pressure or ultra high pressure container, design pressure >=the 35MPa of described pressurized container, manhole cover (1) is fixed with bolt block (2), and bolt block (2) coordinates with bolt (3); After manhole cover is closed, manhole cover (1) is connected with external support component (4) by bolt (3), and completes the closed of manhole cover by the pretightening force be applied on bolt (3); Offer a circular groove in the boss circumference of manhole cover (1), and load the packing ring (7) of corresponding size wherein; Between manhole cover (1) and pressure container cylinder (5), playing main seal effect by arranging pad (6) on manhole cover (1) large end face, playing supplementary seal action by the packing ring (7) that arranges between manhole cover (1) boss and barrel connecting pipe inwall.
Description
Technical field
The utility model relates to pressure self tightening manhole structure in a kind of double-layer seal.
Background technique
At present, the pressurized container for industry-by-industry embodies more and more significantly high parameter trend, and the design pressure of container constantly increases; Meanwhile, the manhole structure that pressurized container is conventional remains the outward opening structure of regulation in HG/T21514 ~ 21535-2005 " steel-made manhole and hand hole ", when being used in the higher occasion of design pressure can only by increasing manhole structure's size, increase the mode of fastening bolt and nut specification and adapt to press in container; Exceed when standard specifies the occasion of design pressure generally according to standard flange structural design manhole being used in.This design for outward opening manhole structure fails to take into full account the Economy of product under the prerequisite that ensure that safety of structure, improves the cost of pressurized container to a certain extent.In addition, there is larger medium and reveal possibility in the sealing configuration of single spacers/washers, especially for some easy leaking mediums, after Long-Time Service, structure easily lost efficacy because leaking accumulation.
Model utility content
The technical problems to be solved in the utility model be to provide a kind of good seal performance for pressing self tightening manhole structure in the double-layer seal of high pressure or ultra high pressure container.
The present invention solves the problems of the technologies described above the technological scheme adopted to be:
For pressing a self tightening manhole structure in the double-layer seal of pressurized container, described pressurized container is the design pressure >=35MPa of high pressure or ultra high pressure container, described pressurized container, and manhole cover and bolt block are fixed, and bolt block coordinates with bolt; After manhole cover is closed, manhole cover is connected with external support component by bolt, and completes the closed of manhole cover by the pretightening force be applied on bolt; Offer a circular groove in the boss circumference of manhole cover, and load the packing ring of corresponding size wherein; Between manhole cover and pressure container cylinder, playing main seal effect by arranging pad on manhole cover large end face, playing supplementary seal action by the packing ring that arranges between manhole cover boss and barrel connecting pipe inwall.
Manhole cover is connected with pressure container cylinder by linkage mechanism.
In linkage mechanism, the weldering ear welded mutually with manhole cover offers the slotted hole adapted with manhole cover boss height.
Principle: Pressure container manhole structure is interior pressure self tightening, and this structure reaches sealing by equalizing reservoir interior media pressure, thus realize that pressure is higher, the sealability of structure is better; High pressure, ultra high pressure container (design pressure >=35MPa) occasion can be used in.Pressure container manhole structure is containing axial and the two-layer sealing of radial direction, the pad that axial seal uses can ensure the sealability of structure under elevated pressures, the sealability of structure when the packing ring that radial seal uses can ensure that pressurization/release staged pressure is lower, and prevent the leakage of medium from accumulating.
The beneficial effects of the utility model are:
1, decrease the accessory part of manhole structure, effectively reduce the cost of manhole structure;
2, effectively raise the sealability of Pressure container manhole structure, realize structure in all stage process of pressurized container internal pressure size variation and can guarantee sealing.Good anti-leak result is had for storing easy leaking medium under elevated pressures effect.
Accompanying drawing explanation
Pressure self tightening manhole structure sketch in Fig. 1 double-layer seal;
Fig. 2 double-layer sealing structure partial enlargement sketch.
Description of reference numerals
Manhole cover 1, bolt block 2, bolt 3, external support component 4, pressure container cylinder 5, pad 6, packing ring 7, linkage mechanism 8, manhole cover weldering ear 9.
Embodiment
For making the utility model become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The design of this manhole structure is mainly for needing the pressurized container use occasion ensureing sealability under elevated pressures.Manhole cover 1 is fixed with bolt block 2, and bolt block 2 coordinates with bolt 3.After manhole cover is closed, manhole cover 1 is connected with external support component 4 by bolt 3, and completes the closed of manhole cover by the pretightening force be applied on bolt 3.After pressurized container internal pressurization, pressure medium loads on manhole cover 1, compresses manhole cover 1 further.
Offer a circular groove in the boss circumference of manhole cover 1, and load the packing ring 7 of corresponding size wherein.Therefore, by pad 6(wound gasket, metal ring pad or the nonmetallic gasket etc. on manhole cover 1 large end face between manhole cover 1 and pressure container cylinder 5) play main seal effect, by 7 the supplementary seal actions of the packing ring between manhole cover 1 boss and barrel connecting pipe inwall.
Manhole cover 1 is connected with pressure container cylinder 5 by linkage mechanism 8.In linkage mechanism 8, the weldering ear 9 welded with manhole cover 1 phase offers the slotted hole adapted with manhole cover 1 boss height, therefore manhole cover can facilitate, safety opening and closing.
Claims (3)
1. one kind for pressing self tightening manhole structure in the double-layer seal of pressurized container, described pressurized container is high pressure or ultra high pressure container, design pressure >=the 35MPa of described pressurized container, it is characterized in that: manhole cover (1) is fixed with bolt block (2), and bolt block (2) coordinates with bolt (3); After manhole cover is closed, manhole cover (1) is connected with external support component (4) by bolt (3), and completes the closed of manhole cover by the pretightening force be applied on bolt (3); Offer a circular groove in the boss circumference of manhole cover (1), and load the packing ring (7) of corresponding size wherein; Between manhole cover (1) and pressure container cylinder (5), playing main seal effect by arranging pad (6) on manhole cover (1) large end face, playing supplementary seal action by the packing ring (7) that arranges between manhole cover (1) boss and barrel connecting pipe inwall.
2. for pressing a self tightening manhole structure in the double-layer seal of pressurized container, it is characterized in that: manhole cover (1) is connected with pressure container cylinder (5) by linkage mechanism (8).
3. one kind for pressing self tightening manhole structure in the double-layer seal of pressurized container, it is characterized in that: in linkage mechanism (8), the weldering ear (9) welded mutually with manhole cover (1) offers the slotted hole adapted with manhole cover (1) boss height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144941.2U CN204573080U (en) | 2015-03-13 | 2015-03-13 | A kind of for pressing self tightening manhole structure in the double-layer seal of pressurized container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144941.2U CN204573080U (en) | 2015-03-13 | 2015-03-13 | A kind of for pressing self tightening manhole structure in the double-layer seal of pressurized container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204573080U true CN204573080U (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520144941.2U Active CN204573080U (en) | 2015-03-13 | 2015-03-13 | A kind of for pressing self tightening manhole structure in the double-layer seal of pressurized container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204573080U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015919A (en) * | 2016-07-13 | 2016-10-12 | 北京华福工程有限公司 | High-pressure spherical gas tank |
| CN106043986A (en) * | 2016-07-13 | 2016-10-26 | 北京华福工程有限公司 | Manhole device of high pressure accumulator |
| CN107379406A (en) * | 2017-06-27 | 2017-11-24 | 宁波巴斯顿机械科技有限公司 | A kind of accurate feed device of vacuum |
| CN109519541A (en) * | 2018-12-10 | 2019-03-26 | 航天晨光股份有限公司 | A kind of internal high-voltage manhole device and its open and close operating method |
-
2015
- 2015-03-13 CN CN201520144941.2U patent/CN204573080U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015919A (en) * | 2016-07-13 | 2016-10-12 | 北京华福工程有限公司 | High-pressure spherical gas tank |
| CN106043986A (en) * | 2016-07-13 | 2016-10-26 | 北京华福工程有限公司 | Manhole device of high pressure accumulator |
| CN107379406A (en) * | 2017-06-27 | 2017-11-24 | 宁波巴斯顿机械科技有限公司 | A kind of accurate feed device of vacuum |
| CN109519541A (en) * | 2018-12-10 | 2019-03-26 | 航天晨光股份有限公司 | A kind of internal high-voltage manhole device and its open and close operating method |
| CN109519541B (en) * | 2018-12-10 | 2023-12-12 | 航天晨光股份有限公司 | Built-in high-pressure manhole device and opening and closing operation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |