CN110043542A - A kind of underwater valve body lid stud exclusion seal structure - Google Patents
A kind of underwater valve body lid stud exclusion seal structure Download PDFInfo
- Publication number
- CN110043542A CN110043542A CN201910404033.5A CN201910404033A CN110043542A CN 110043542 A CN110043542 A CN 110043542A CN 201910404033 A CN201910404033 A CN 201910404033A CN 110043542 A CN110043542 A CN 110043542A
- Authority
- CN
- China
- Prior art keywords
- stud
- valve body
- valve
- underwater
- outside
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007717 exclusion Effects 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 230000001012 protector Effects 0.000 claims abstract description 32
- 238000012856 packing Methods 0.000 claims abstract description 13
- 238000005260 corrosion Methods 0.000 claims description 14
- 230000007797 corrosion Effects 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 210000003371 toe Anatomy 0.000 claims description 5
- 239000013535 sea water Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- MSNOMDLPLDYDME-UHFFFAOYSA-N gold nickel Chemical compound [Ni].[Au] MSNOMDLPLDYDME-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/008—Corrosion preventing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The present invention relates to a kind of underwater valve body lid stud exclusion seal structures, it includes valve body, valve deck, pressure-bearing stud and nut；Pressure-bearing stud has outside to appear on nut；The outside of pressure-bearing stud, which is appeared, is equipped with stud head protector with the outside on nut；Stud head protector is provided with internal screw thread, and stud head protector and outside are appeared screw thread locking；Stud head protector is pressed on valve deck；It is located at side of the pressure-bearing stud outside valve body between valve body and valve deck to be equipped with the first sealing ring, be equipped with the second sealing ring close to the side of valve inner；It is located at the second sealing ring between valve body and valve deck and is additionally provided with metallic packing ring close to the side of valve inner.A kind of underwater valve body lid stud exclusion seal structure of the invention, effectively stud nut is isolated with seawater；Effectively bear the external pressure of deepwater environment and the internal high pressure from valve body；Solves the problem of high pressure underwater environment, the leakage of the valve body and valve deck of valve and connecting stud nut corrode.
Description
Technical field
The present invention relates to underwater valve fields, more particularly to a kind of underwater valve body lid stud exclusion seal structure.
Background technique
Underwater valve is referred mainly to using all valves of pipeline under water, is mainly used in opening for offshore oil and natural gas
It adopts.Underwater valve types mainly have ball valve, gate valve, check-valves etc..Compared with land valve, underwater environment is more complicated, valve
It needs for a long time in the environment of internal high pressure, external high pressure, cold and hot temperature alternating, seawater corrosion and microbial attack, this is just right
The leakproofness of valve itself and the external leakage requirement of valve are more harsh, more particularly, to the body lid connecting stud of underwater valve
Nut, although exposed parts pass through preservative treatment, be directly exposed in marine corrosion environment for a long time, seawater penetrate into valve body with
The screw thread connected inside valve deck, it is easy to which gap corrosion, substantially reduces the bearing capacity of body lid connecting stud nut, leaves
Security risk.
Existing traditional valve valve body is connected with valve deck stud nut, and structure is simple, unbearable to come from without sealing ring
Underwater external pressure；Existing traditional valve, valve body and valve deck, which connect, is typically designed the sealing of one to two roads, sealing performance and reliable
Property is unable to satisfy the requirement of underwater valve applying working condition；Existing underwater valve, valve body connect no any protection with valve deck, only
The part being exposed carries out the spraying protection of marine anticorrosion paint, and seawater is easy to enter internal spiral shell from valve body and valve deck assembly gap
Line junction, causes thread pitch to corrode；Valve body and valve deck pressure-bearing stud screw corrosion can reduce its energy for bearing internal pressure
Power, long-term corrosion even will cause pressure-bearing boundary integrity violations.
Summary of the invention
In order to solve the above technical problems, passing through the present invention provides a kind of underwater valve body lid stud exclusion seal structure
Stud head protector is set, effectively stud nut can be isolated with seawater；Deep water can effectively be born using the first sealing ring
The external pressure of environment can effectively block the internal high pressure from valve body using the second sealing ring and metallic packing ring；Solves high pressure
The problem of underwater environment, the leakage of the valve body and valve deck of valve and connecting stud nut corrode.
The technical solution adopted by the present invention to solve the technical problems is: a kind of underwater valve body lid stud exclusion seal knot
Structure, it include valve body, valve deck, with for connect valve body and with the pressure-bearing stud and nut of valve deck；The pressure-bearing stud is in nut
On there is outside to appear；The outside of the pressure-bearing stud, which is appeared, is provided with stud head protector with the outside on nut；The stud is anti-
Helmet is correspondingly arranged on internal screw thread appearing with outside, and stud head protector and outside are appeared screw thread locking；The pressure of stud head protector
On valve deck；It is located at side of the pressure-bearing stud outside valve body between valve body and valve deck and is provided with the first sealing ring, close
The side of valve inner is provided with the second sealing ring；It is located at the second sealing ring between valve body and valve deck close to the one of valve inner
Side is additionally provided with metallic packing ring.
The top side of the internal screw thread of the stud head protector is additionally provided with Gewindefreistiche.
The stud head protector is anti-corrosion head protector, is set as turret head or square toes on the outside of top half.
It is provided with groove on the bottom face of the stud head protector, third sealing ring is equipped in groove.
The metallic packing ring is corrosion resistant alloy ring, realizes sealing by the intracorporal medium internal pressure of valve.
First sealing ring and the second sealing ring are all mounted in the seal groove being arranged on valve body；Seal groove is
Groove with inclined-plane, section are trapezoidal.
The inside surfacing of the seal groove has corrosion-resistant alloy layer.
The valve body and valve deck are respectively arranged with metal sealing annular groove in position corresponding with metallic packing ring.
Beneficial effects of the present invention: a kind of underwater valve body lid stud exclusion seal structure of the invention, by the way that spiral shell is arranged
Effectively stud nut can be isolated with seawater for column head protector；Deepwater environment can effectively be born using the first sealing ring
External pressure can effectively block the internal high pressure from valve body using the second sealing ring and metallic packing ring；Solves ring under high pressure water
The problem of border, the leakage of the valve body and valve deck of valve and connecting stud nut corrode.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of underwater valve body lid stud exclusion seal structure of embodiment.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention is done below in conjunction with drawings and examples and is further retouched in detail
It states, the embodiment is only for explaining the present invention, does not constitute and limits to protection scope of the present invention.
Embodiment
As shown in Figure 1, present embodiments provide a kind of underwater valve body lid stud exclusion seal structure, it include valve body 1,
Valve deck 2, with for connect valve body and 1 and valve deck 2 pressure-bearing stud 3 and nut 4；The pressure-bearing stud 3 has outside on nut 4
It appears；The outside of the pressure-bearing stud 3, which is appeared, is provided with stud head protector 5 with the outside on nut 4；The stud head protector 5
It is correspondingly arranged on internal screw thread appearing with outside, stud head protector 5 and outside are appeared screw thread locking；Stud head protector 5 is pressed in
On valve deck 2；Between valve body 1 and valve deck 2 be located at side of the pressure-bearing stud 3 outside valve body 1 be provided with the first sealing ring 7,
Side inside valve body 1 is provided with the second sealing ring 9；It is located at the second sealing ring 9 between valve body 1 and valve deck 2 close to valve
Side inside body 1 is additionally provided with metallic packing ring 8；The top side of the internal screw thread of the stud head protector 5 is additionally provided with screw thread and moves back
Cutter groove；The stud head protector 5 is anti-corrosion head protector, is set as turret head or square toes on the outside of top half；The stud is anti-
It is provided with groove on the bottom face of helmet 5, third sealing ring 6 is equipped in groove；The metallic packing ring 8 is corrosion resistant alloy
Ring realizes sealing by the medium internal pressure in valve body 1；First sealing ring 7 and the second sealing ring 9, which are all mounted on, to be arranged in valve
In seal groove on body 1；Seal groove is the groove with inclined-plane, and section is trapezoidal；The inner surface heap of the seal groove
It is welded with corrosion-resistant alloy layer；The valve body 1 and valve deck 2 are respectively arranged with metallic packing ring in position corresponding with metallic packing ring 8
Slot.
A kind of underwater valve body lid stud exclusion seal structure of the present embodiment has screw thread and screw thread inside stud head protector
Escape, head construction are turret head or square toes, and the groove with inclined-plane is arranged at bottom；When the dew for increasing valve body valve deck stud
Third sealing ring is assembled in the groove of stud head protector bottom by head, passes through the turret head or square toes on stud head protector top
It is tightened to valve deck end face, the Seawater and external pressure being effectively isolated, the external screw thread of appearing of protection are not corroded.
A kind of underwater valve body lid stud exclusion seal structure of the present embodiment is provided with the first sealing ring and the second sealing
Circle, the first sealing ring are mainly blocked from external seawater pressure, prevent seawater from intruding into internal spiral shell by valve body and valve deck joint surface
Line connection, and then corrode screw thread；First sealing ring both can also be used as the auxiliary of external pressure with blocked valve chamber internal pressure
Sealing.
A kind of underwater valve body lid stud exclusion seal structure of the present embodiment, the metal o-ring of setting are main to block
High pressure inside valve chamber；The material of metal o-ring is abros, under valve body and the effect of valve deck stud nut
It compresses, sealing is realized in pressure in medium.
A kind of underwater valve body lid stud exclusion seal structure of the present embodiment, seal groove are closed by built-up welding Inco nickel
Gold, the alloy thickness of built-up welding are not less than 3mm, caused by preventing seal groove base metal from corroding because of valve chamber medium or Seawater
Sealing ring seal failure.
A kind of underwater valve body lid stud exclusion seal structure of the present embodiment can be effective by the way that stud head protector is arranged
Stud nut is isolated with seawater；The external pressure of deepwater environment can be effectively born using the first sealing ring, it is close using second
Seal and metallic packing ring can effectively block the internal high pressure from valve body；Solve high pressure underwater environment, the valve body of valve and
The problem of leakage of valve deck and connecting stud nut corrode.
Above-described embodiment should not in any way limit the present invention, all to be obtained by the way of equivalent replacement or equivalency transform
Technical solution fall within the scope of protection of the present invention.
Claims (8)
1. a kind of underwater valve body lid stud exclusion seal structure, it is characterised in that: including valve body, valve deck, to be used for connection valve
Body and pressure-bearing stud and nut with valve deck；The pressure-bearing stud has outside to appear on nut；The outside of the pressure-bearing stud
It appears and the outside on nut is provided with stud head protector；The stud head protector is correspondingly arranged on interior spiral shell appearing with outside
Line, stud head protector and outside are appeared screw thread locking；Stud head protector is pressed on valve deck；It is located between valve body and valve deck and holds
It presses side of the stud outside valve body to be provided with the first sealing ring, the side of valve inner is provided with the second sealing ring；
It is located at the second sealing ring between valve body and valve deck and is additionally provided with metallic packing ring close to the side of valve inner.
2. a kind of underwater valve body lid stud exclusion seal structure according to claim 1, it is characterised in that: the stud
The top side of the internal screw thread of head protector is additionally provided with Gewindefreistiche.
3. a kind of underwater valve body lid stud exclusion seal structure according to claim 1, it is characterised in that: the stud
Head protector is anti-corrosion head protector, is set as turret head or square toes on the outside of top half.
4. a kind of underwater valve body lid stud exclusion seal structure according to claim 1, it is characterised in that: the stud
It is provided with groove on the bottom face of head protector, third sealing ring is equipped in groove.
5. a kind of underwater valve body lid stud exclusion seal structure according to claim 1, it is characterised in that: the metal
Sealing ring is corrosion resistant alloy ring, realizes sealing by the intracorporal medium internal pressure of valve.
6. a kind of underwater valve body lid stud exclusion seal structure according to claim 1, it is characterised in that: described first
Sealing ring and the second sealing ring are all mounted in the seal groove being arranged on valve body；Seal groove is the groove with inclined-plane,
Section is trapezoidal.
7. a kind of underwater valve body lid stud exclusion seal structure according to claim 6, it is characterised in that: the sealing
The inside surfacing of ring recess has corrosion-resistant alloy layer.
8. a kind of underwater valve body lid stud exclusion seal structure according to claim 1, it is characterised in that: the valve body
Metal sealing annular groove is respectively arranged in position corresponding with metallic packing ring with valve deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910404033.5A CN110043542A (en) | 2019-05-15 | 2019-05-15 | A kind of underwater valve body lid stud exclusion seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910404033.5A CN110043542A (en) | 2019-05-15 | 2019-05-15 | A kind of underwater valve body lid stud exclusion seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110043542A true CN110043542A (en) | 2019-07-23 |
Family
ID=67282094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910404033.5A Pending CN110043542A (en) | 2019-05-15 | 2019-05-15 | A kind of underwater valve body lid stud exclusion seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043542A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325045A (en) * | 2020-11-08 | 2021-02-05 | 国家电网有限公司 | Flange surface grading pressure relief plugging tool and plugging method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1138790A (en) * | 1966-07-21 | 1969-01-01 | Financ Et Ind Des Ateliers Et | Improvements in or relating to fixing assemblies for use in corrosive conditions |
| US4400123A (en) * | 1980-07-14 | 1983-08-23 | Rodun Development Corporation | Nut and thread protector |
| CN2672356Y (en) * | 2003-12-25 | 2005-01-19 | 吴怀之 | Fastened protective cover |
| CN201391239Y (en) * | 2009-04-08 | 2010-01-27 | 郭衡纲 | Connection coupling of torque ledge overlaying anti-corrosion alloy sealed by sealing ring |
| CN201902416U (en) * | 2010-12-06 | 2011-07-20 | 中国航空工业集团公司第六三一研究所 | Liquid circulation sealing device |
| CN203051390U (en) * | 2012-11-25 | 2013-07-10 | 安徽六方重联机械股份有限公司 | Sealing and anticorrosion bolt |
| CN106089926A (en) * | 2016-08-25 | 2016-11-09 | 安徽六方重联机械股份有限公司 | Spring protective bolt |
| CN107269657A (en) * | 2017-08-04 | 2017-10-20 | 安徽六方重联机械股份有限公司 | A kind of antirust bolt |
| CN108253000A (en) * | 2018-01-30 | 2018-07-06 | 苏州船用动力系统股份有限公司 | A kind of bolt anti-corrosion loses device |
| CN207830675U (en) * | 2018-01-26 | 2018-09-07 | 盐城市大丰中意机械有限公司 | A kind of corrosion-resistant valve deck |
| CN210106346U (en) * | 2019-05-15 | 2020-02-21 | 苏州道森阀门有限公司 | Underwater valve body cover stud protection sealing structure |
-
2019
- 2019-05-15 CN CN201910404033.5A patent/CN110043542A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1138790A (en) * | 1966-07-21 | 1969-01-01 | Financ Et Ind Des Ateliers Et | Improvements in or relating to fixing assemblies for use in corrosive conditions |
| US4400123A (en) * | 1980-07-14 | 1983-08-23 | Rodun Development Corporation | Nut and thread protector |
| CN2672356Y (en) * | 2003-12-25 | 2005-01-19 | 吴怀之 | Fastened protective cover |
| CN201391239Y (en) * | 2009-04-08 | 2010-01-27 | 郭衡纲 | Connection coupling of torque ledge overlaying anti-corrosion alloy sealed by sealing ring |
| CN201902416U (en) * | 2010-12-06 | 2011-07-20 | 中国航空工业集团公司第六三一研究所 | Liquid circulation sealing device |
| CN203051390U (en) * | 2012-11-25 | 2013-07-10 | 安徽六方重联机械股份有限公司 | Sealing and anticorrosion bolt |
| CN106089926A (en) * | 2016-08-25 | 2016-11-09 | 安徽六方重联机械股份有限公司 | Spring protective bolt |
| CN107269657A (en) * | 2017-08-04 | 2017-10-20 | 安徽六方重联机械股份有限公司 | A kind of antirust bolt |
| CN207830675U (en) * | 2018-01-26 | 2018-09-07 | 盐城市大丰中意机械有限公司 | A kind of corrosion-resistant valve deck |
| CN108253000A (en) * | 2018-01-30 | 2018-07-06 | 苏州船用动力系统股份有限公司 | A kind of bolt anti-corrosion loses device |
| CN210106346U (en) * | 2019-05-15 | 2020-02-21 | 苏州道森阀门有限公司 | Underwater valve body cover stud protection sealing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325045A (en) * | 2020-11-08 | 2021-02-05 | 国家电网有限公司 | Flange surface grading pressure relief plugging tool and plugging method |
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