CN105276186A - Manhole mechanism on high-pressure equipment barrel - Google Patents
Manhole mechanism on high-pressure equipment barrel Download PDFInfo
- Publication number
- CN105276186A CN105276186A CN201510826590.8A CN201510826590A CN105276186A CN 105276186 A CN105276186 A CN 105276186A CN 201510826590 A CN201510826590 A CN 201510826590A CN 105276186 A CN105276186 A CN 105276186A
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- manhole
- baffle ring
- ring
- boss
- cover
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Abstract
The invention discloses a manhole mechanism on a high-pressure equipment barrel. The manhole mechanism is good in sealing effect and convenient to detach and maintain. The manhole mechanism is characterized in that a manhole cover is arranged in a manhole boss, a sealing gasket is arranged in an annular groove in the outer edge of the outer end of the manhole cover, a baffle ring formed by splicing four baffle ring fragments is tightly clamped into a containing groove in the inner wall of the manhole boss in a blocking manner, and the baffle ring protrudes out of the containing groove; abutted seams between the four baffle ring fragments are parallel, each pair of radially-opposite baffle ring fragments are symmetric, and a blocking assembly is clamped on the inner wall of the baffle ring; a drag cover plate covers the outer end of the manhole boss in a blocking manner, and the manhole cover and the drag cover plate are connected through bolts and locknuts; and the manhole cover can enable the sealing gasket to be pre-pressed on and abut against the inner side of the baffle ring in a blocking manner by tightening each locknut, the manhole cover enables the sealing gasket to be pressed on and abut against the inner side of the baffle ring in a sealing and blocking manner under the effect of high pressure in the equipment barrel, and therefore the manhole cover and the manhole boss are sealed.
Description
Technical field
The present invention relates to high-tension apparatus technical field, be specifically related to the manhole mechanism on high-tension apparatus cylindrical shell.
Background technique
Manhole mechanism on traditional high-tension apparatus cylindrical shell comprises: seal the manhole boss of the annular of fixedly docking with the sidewall of the manhole in equipment barrel, manhole boss is installed with flange ring, flange ring is equipped with blind flange, sealing gasket is provided with between blind flange and flange ring, bolt between locking blind flange and flange ring, sealing gasket is pressed between blind flange and flange ring, thus blind flange sealing is covered tightly on manhole boss.Manhole mechanism on traditional high-tension apparatus cylindrical shell is fairly simple, but there is following defect: one, under the frequent fluctuation effect of high-tension apparatus inner barrel pressure and temperature, bolt between blind flange and flange ring easily produces loosening, thus causes the sealing between blind flange and flange ring unreliable; Two, the bolt between blind flange and flange ring needs to adopt M64 and above and all need to adopt hydraulicefficiency tightening, thus cause the fabricating cost of whole manhole mechanism high, and the dismounting of manhole mechanism, installation and maintenance is all very inconvenient.
Summary of the invention
The object of the invention is: provide a kind of and seal reliable, dismounting, installation, maintenance and the use manhole mechanism all very easily on high-tension apparatus cylindrical shell.
For achieving the above object, the technical solution used in the present invention is: the manhole mechanism on high-tension apparatus cylindrical shell, comprise: seal the manhole boss of the annular of fixedly docking with the manhole in equipment barrel, manhole cover is provided with in manhole boss, the outward edge of manhole cover outer end is provided with a ring annular groove, seal washer is provided with in circular groove, seal washer can make to be formed between the inwall of manhole cover and manhole boss to seal, the inwall being positioned at the manhole boss outside seal washer offers the receiving groove that a circle is inwardly recessed, the tight block of baffle ring is in receiving groove, and baffle ring protrudes from receiving groove, seal washer pressure is kept off in circular groove by baffle ring, described baffle ring is put together by four pieces of burst baffle rings, the split seam formed between four pieces of burst baffle rings is parallel mutually, often pair of burst baffle ring is diametrically symmetrical mutually, the inwall of the baffle ring be put together by four pieces of burst baffle rings is arranged with the barrier assembly that four pieces of burst baffle rings can be stoped to deviate from receiving groove, the outer end of manhole cover is provided with some bolts hole, the outer end cap gear of manhole boss pins down cover plate, pin down cover plate is provided with and somely one to one through hole is installed with the bolt hole on manhole cover, in each bolt hole, equal screw threads for fastening has a bolt, the top of every root bolt is all stretched out from the installation through hole of correspondence, bolt outside each installation through hole is provided with locking nut, the equal block of each locking nut is pining down on cover plate, tightening up each locking nut can make manhole cover seal washer be compressed in advance the inner side keeping off and lean against baffle ring, under the effect of equipment barrel internal high pressure, seal washer press seal gear is leaned against the inner side of baffle ring thus makes mutually to seal between manhole cover and manhole boss by manhole cover.
Further, manhole mechanism on aforesaid high-tension apparatus cylindrical shell, wherein, described barrier assembly comprises: the support ring of a block on baffle ring inwall, support ring offers a gap, the support ring at gap two ends is respectively arranged with a pair connecting plate, be connected with an adjusting nut by an adjusting bolt between a pair connecting plate, tightening adjusting nut can make gap spacing reduce, and unscrews adjusting nut and gap spacing can be made to increase.
Further, the manhole mechanism on aforesaid high-tension apparatus cylindrical shell, wherein, the installation hanger used when every block burst baffle ring is all connected with dismounting, each installation hanger is provided with the tapped through hole for being connected with dismantling device.
Further, the manhole mechanism on aforesaid high-tension apparatus cylindrical shell, wherein, described seal washer adopts graphite packing.
Further, the manhole mechanism on aforesaid high-tension apparatus cylindrical shell, wherein, the inner end in manhole boss is provided with the back-up ring for stopping manhole cover.
Further, the manhole mechanism on aforesaid high-tension apparatus cylindrical shell, wherein, pins down on cover plate and is provided with peep hole.
Further, the manhole mechanism on aforesaid high-tension apparatus cylindrical shell, wherein, the sidewall of the manhole boss that every block burst baffle ring is corresponding is provided with a dismounting through hole.
Further, the manhole mechanism on aforesaid high-tension apparatus cylindrical shell, wherein, has Sealing shield ring in the arranged outside of seal washer, and baffle ring pressure gear keeps off and being pressed in circular groove on Sealing shield ring thus by seal washer.
Advantage of the present invention is: manhole cover and the effect pining down the bolt and lock nut between cover plate are only to make to produce pretightening force between manhole cover and baffle ring, therefore the diameter of bolt can reduce greatly, the tightening tool that direct use is common, as spanner tightens, this not only greatly facilitates maintenance and the dismounting of manhole, also greatly reduces the cost that manhole mechanism makes, installs, safeguards; It is firm that high pressure in equipment barrel to make between the inwall of manhole cover and manhole boss mutually to seal, and the pressure in equipment barrel is larger, sealing effect is better, sealing between manhole cover and manhole boss can not be affected because of the fluctuation of temperature and pressure in equipment barrel, and this just substantially increases the sealing reliability of manhole mechanism.
Accompanying drawing explanation
Fig. 1 is the structural representation of the manhole mechanism on a kind of high-tension apparatus cylindrical shell of the present invention.
Fig. 2 is that in Fig. 1, A-A analyses and observe direction structure schematic diagram.
Fig. 3 is the structural representation of barrier assembly in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the present invention is described in further detail.
As shown in Figure 1 and Figure 2, manhole mechanism on a kind of high-tension apparatus cylindrical shell, comprise: seal the manhole boss 1 of the annular of fixedly docking with the sidewall of the manhole in equipment barrel, manhole cover 2 is provided with in manhole boss 1, inner end in manhole boss 1 is provided with the back-up ring 12 for stopping manhole cover 2, the outward edge of manhole cover 2 outer end is provided with a ring annular groove 21, is provided with seal washer 3 in circular groove 21, and seal washer 3 can make to form sealing between manhole cover 2 and manhole boss 1 inwall.Because graphite packing has excellent rebound elasticity, the characteristic such as high temperature resistant, high pressure resistant, the seal washer 3 therefore in the present embodiment adopts graphite packing, outside graphite packing, be also provided with Sealing shield ring 31.The inwall being positioned at the manhole boss 1 outside seal washer 3 offers the receiving groove 11 that a circle is inwardly recessed, the tight block of baffle ring 4 is in receiving groove 11 and baffle ring 4 protrudes from receiving groove 11, and baffle ring 4 keeps off and is pressed on Sealing shield ring 31 thus is pressed in circular groove 21 by graphite packing gear.Baffle ring 4 is put together by four pieces of burst baffle rings 41, and the split seam 411 formed between four pieces of burst baffle rings 41 is parallel mutually, and often pair of burst baffle ring 41 is diametrically symmetrical mutually.Baffle ring 4 adopts the effect of burst split structure to be: be convenient to baffle ring 4 and be mounted in receiving groove 11 or split out from receiving groove 11.The block number of burst baffle ring 41 is too much unsuitable, usually be arranged to four pieces comparatively suitable, one piece of baffle ring 4 adopt the structure of four pieces of burst baffle rings 41 split effectively to guarantee the impacting force between baffle ring 4 and sealing gasket 3 is evenly distributed.For the ease of dismounting in the present embodiment, the installation hanger 42 used when every block burst baffle ring 41 is all connected with dismounting, each installation hanger 42 is provided with the tapped through hole 421 for being connected with dismantling device.In addition, for the ease of the dismounting of four pieces of burst baffle rings 41, the sidewall of the manhole boss 1 corresponding with every block burst baffle ring 41 is provided with and dismantles through hole 110, during dismounting burst baffle ring 41, by extracting tool as thin iron staff, stretch to from dismounting through hole 110 and conflict on burst baffle ring 41, then inwardly knock thin iron staff and just burst baffle ring 41 can be pounded out from receiving groove 11, so just can very easily burst baffle ring 41 be taken apart from receiving groove 11.
The inwall of the baffle ring 4 be put together by four pieces of burst baffle rings 41 is arranged with the barrier assembly 13 that four pieces of burst baffle rings 41 can be stoped to deviate from receiving groove 11, as shown in Figure 3, barrier assembly 13 described in the present embodiment comprises: the support ring 5 of a block on baffle ring 4 inwall, support ring 5 offers a gap 51, the support ring 5 at gap 51 two ends is provided with a pair connecting plate 6, be connected with an adjusting nut 8 by an adjusting bolt 7 between a pair connecting plate 6, tightening adjusting nut 8 can make gap 51 spacing reduce, unscrewing adjusting nut 8 can make gap 51 spacing increase.The spacing of gap 51 is larger, support ring 5 larger to the tension force of baffle ring 4; The spacing of gap 51 is less, and the tension force of support ring 5 pairs of baffle rings 4 is less.In actual using process, tension force between support ring 5 and baffle ring 4 inwall can be regulated by regulating the spacing size of gap 51.
The outer end of manhole cover 2 is provided with some bolts hole 22, the outer end cap gear of manhole boss 2 pins down cover plate 9, pin down cover plate 9 is provided with and somely one to one through hole 91 is installed with the bolt hole 22 on manhole cover 2, for the ease of observing the inside of manhole boss 1, pining down in the present embodiment on cover plate 9 and being provided with peep hole 92.In each bolt hole 22, equal screw threads for fastening has a bolt 10, the outer end of every root bolt 10 is all stretched out from the installation through hole 91 of correspondence, bolt 10 outside each installation through hole 91 is provided with locking nut 101, each locking nut 101 all block is pining down on cover plate 9, tightening up each locking nut 101 can make manhole cover 2 seal washer 3 be compressed in advance the inner side keeping off and lean against baffle ring 4, under the effect of equipment barrel internal high pressure, seal washer 3 is sealed compression gear and leans against the inner side of baffle ring 4 thus make mutually to seal between manhole cover 2 and manhole boss 1 by manhole cover 2.Because the effect of bolt 10 and locking nut 101 is only to make to produce pretightening force between manhole cover 2 and baffle ring 4, therefore the diameter of bolt 10 can reduce greatly, the tightening tool that direct use is common, as spanner tightens, this not only greatly facilitates the installation of manhole mechanism, maintenance and dismounting, also greatly reduces that manhole mechanism makes, the cost of installation and maintenance; It is firm that high pressure in equipment barrel to make between the inwall of manhole cover 2 and manhole boss 1 mutually to seal, and the pressure in equipment barrel is larger, sealing effect is better, sealing between manhole cover 2 and manhole boss 1 can not be affected because of the fluctuation of temperature and pressure in equipment barrel, and this just substantially increases the reliability of manhole mechanism sealing.
Claims (8)
1. the manhole mechanism on high-tension apparatus cylindrical shell, comprise: seal the manhole boss of the annular of fixedly docking with the manhole in equipment barrel, it is characterized in that: in manhole boss, be provided with manhole cover, the outward edge of manhole cover outer end is provided with a ring annular groove, seal washer is provided with in circular groove, seal washer can make to be formed between the inwall of manhole cover and manhole boss to seal, the inwall being positioned at the manhole boss outside seal washer offers the receiving groove that a circle is inwardly recessed, the tight block of baffle ring is in receiving groove, and baffle ring protrudes from receiving groove, seal washer pressure is kept off in circular groove by baffle ring, described baffle ring is put together by four pieces of burst baffle rings, the split seam formed between four pieces of burst baffle rings is parallel mutually, often pair of burst baffle ring is diametrically symmetrical mutually, the inwall of the baffle ring be put together by four pieces of burst baffle rings is arranged with the barrier assembly that four pieces of burst baffle rings can be stoped to deviate from receiving groove, the outer end of manhole cover is provided with some bolts hole, the outer end cap gear of manhole boss pins down cover plate, pin down cover plate is provided with and somely one to one through hole is installed with the bolt hole on manhole cover, in each bolt hole, equal screw threads for fastening has a bolt, the top of every root bolt is all stretched out from the installation through hole of correspondence, bolt outside each installation through hole is provided with locking nut, the equal block of each locking nut is pining down on cover plate, tightening up each locking nut can make manhole cover seal washer be compressed in advance the inner side keeping off and lean against baffle ring, under the effect of equipment barrel internal high pressure, seal washer press seal gear is leaned against the inner side of baffle ring thus makes mutually to seal between manhole cover and manhole boss by manhole cover.
2. the manhole mechanism on high-tension apparatus cylindrical shell according to claim 1, it is characterized in that: described barrier assembly comprises: the support ring of a block on baffle ring inwall, support ring offers a gap, the support ring at gap two ends is respectively arranged with a pair connecting plate, be connected with an adjusting nut by an adjusting bolt between a pair connecting plate, tightening adjusting nut can make gap spacing reduce, and unscrews adjusting nut and gap spacing can be made to increase.
3. the manhole mechanism on high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: the installation hanger used when every block burst baffle ring is all connected with dismounting, each installation hanger is provided with the tapped through hole for being connected with dismantling device.
4. the manhole mechanism on high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: described seal washer adopts graphite packing.
5. the manhole mechanism on high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: the inner end in manhole boss is provided with the back-up ring for stopping manhole cover.
6. the manhole mechanism on high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: pin down on cover plate and be provided with peep hole.
7. the manhole mechanism on high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: the sidewall of the manhole boss that every block burst baffle ring is corresponding is provided with a dismounting through hole.
8. the manhole mechanism on high-tension apparatus cylindrical shell according to claim 1 and 2, is characterized in that: have Sealing shield ring in the arranged outside of seal washer, and baffle ring pressure gear keeps off and being pressed in circular groove on Sealing shield ring thus by seal washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826590.8A CN105276186B (en) | 2015-11-25 | 2015-11-25 | Manhole mechanism on high-tension apparatus cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826590.8A CN105276186B (en) | 2015-11-25 | 2015-11-25 | Manhole mechanism on high-tension apparatus cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105276186A true CN105276186A (en) | 2016-01-27 |
| CN105276186B CN105276186B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510826590.8A Active CN105276186B (en) | 2015-11-25 | 2015-11-25 | Manhole mechanism on high-tension apparatus cylinder |
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| Country | Link |
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| CN (1) | CN105276186B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140417A (en) * | 2018-09-18 | 2019-01-04 | 张化机（苏州）重装有限公司 | reactor drum |
| 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 |
| CN113800136A (en) * | 2021-08-28 | 2021-12-17 | 安徽江淮扬天汽车股份有限公司 | Tank device of powder tank truck |
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|---|---|---|---|---|
| GB709958A (en) * | 1951-11-14 | 1954-06-02 | Milton Paul Laurent | Improved plug closures for hand and like holes in pressure vessels |
| CN2472065Y (en) * | 2001-02-15 | 2002-01-16 | 张连友 | Inner pressure self tightened sealing manhole for boiler and pressure container |
| CN201034695Y (en) * | 2007-04-13 | 2008-03-12 | 檀景林 | High-temperature, high-pressure magnetic floating type juice level indicator examine and repair open sealing device |
| CN202001606U (en) * | 2010-12-27 | 2011-10-05 | 青岛磐石容器制造有限公司 | Manhole sealing device of high-voltage equipment |
| CN203189713U (en) * | 2013-04-25 | 2013-09-11 | 甘肃蓝科石化高新装备股份有限公司 | High pressure vessel self-sealing structure |
| CN204284430U (en) * | 2014-11-10 | 2015-04-22 | 东方电气集团东方锅炉股份有限公司 | The combination sealing arrangement of swing-in high-pressure self-tightening sealing |
| CN205226366U (en) * | 2015-11-25 | 2016-05-11 | 苏州天沃科技股份有限公司 | Manhole mechanism on high -tension apparatus barrel |
-
2015
- 2015-11-25 CN CN201510826590.8A patent/CN105276186B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB709958A (en) * | 1951-11-14 | 1954-06-02 | Milton Paul Laurent | Improved plug closures for hand and like holes in pressure vessels |
| CN2472065Y (en) * | 2001-02-15 | 2002-01-16 | 张连友 | Inner pressure self tightened sealing manhole for boiler and pressure container |
| CN201034695Y (en) * | 2007-04-13 | 2008-03-12 | 檀景林 | High-temperature, high-pressure magnetic floating type juice level indicator examine and repair open sealing device |
| CN202001606U (en) * | 2010-12-27 | 2011-10-05 | 青岛磐石容器制造有限公司 | Manhole sealing device of high-voltage equipment |
| CN203189713U (en) * | 2013-04-25 | 2013-09-11 | 甘肃蓝科石化高新装备股份有限公司 | High pressure vessel self-sealing structure |
| CN204284430U (en) * | 2014-11-10 | 2015-04-22 | 东方电气集团东方锅炉股份有限公司 | The combination sealing arrangement of swing-in high-pressure self-tightening sealing |
| CN205226366U (en) * | 2015-11-25 | 2016-05-11 | 苏州天沃科技股份有限公司 | Manhole mechanism on high -tension apparatus barrel |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140417A (en) * | 2018-09-18 | 2019-01-04 | 张化机（苏州）重装有限公司 | reactor drum |
| CN109140417B (en) * | 2018-09-18 | 2024-06-04 | 张化机（苏州）重装有限公司 | Reactor steam drum |
| 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 |
| CN113800136A (en) * | 2021-08-28 | 2021-12-17 | 安徽江淮扬天汽车股份有限公司 | Tank device of powder tank truck |
| CN113800136B (en) * | 2021-08-28 | 2023-09-12 | 安徽江淮扬天汽车股份有限公司 | Tank device of powder tank truck |
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| Publication number | Publication date |
|---|---|
| CN105276186B (en) | 2018-04-03 |
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Effective date of registration: 20171128 Address after: 215632, Linjiang Road, Changshan village, Nansha Town, Zhangjiagang, Jiangsu, Suzhou 1, China Applicant after: Chang Hua machine (Suzhou) heavy equipment Co., Ltd. Address before: Suzhou City, Jiangsu province Zhangjiagang 215631 gold town after Cheng Cheng Yang Road Suzhou tianwo Polytron Technologies Inc Applicant before: Suzhou Tian Wo Science and Technology Co., Ltd. |
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