CN107255187A - Bellows steam valve for vapour system - Google Patents
Bellows steam valve for vapour system Download PDFInfo
- Publication number
- CN107255187A CN107255187A CN201710659102.8A CN201710659102A CN107255187A CN 107255187 A CN107255187 A CN 107255187A CN 201710659102 A CN201710659102 A CN 201710659102A CN 107255187 A CN107255187 A CN 107255187A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- bonnet
- bellows
- concave station
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 238000005552 hardfacing Methods 0.000 claims abstract description 4
- 238000012805 post-processing Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
-
- 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
- F16K27/12—Covers for housings
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
For the bellows steam valve of vapour system, it is related to steam valve.Provided with valve body, valve seat, spherical valve core, low head, bellows, valve rod, nut, upper cover, graphite gasket, bolt, bonnet, handwheel, pad, clamp nut；Bonnet inner chamber is provided with concave station up and down, and lower concave station loads graphite gasket, and upper concave station is used for valve stem spacing, and bonnet top outer rim is provided with external screw thread, and external screw thread is screwed in handwheel bottom endoporus screw-internal thread fit；Valve stem top, which is provided with the middle part of external screw thread, valve rod, is provided with boss and valve rod convex platform in valve rod lower convex platform, valve rod, and valve rod lower convex platform can be spacing when valve rod rises, boss and valve rod convex platform control hand wheel rotating gap in valve rod；Valve rod is initially charged with pad and is reloaded into bonnet intracavity through hole；The post-processing of hardfacing alloy material is into valve seat at the top of body cavity intake channel upper end；Bellows two ends are welded and fused by upper low head；Spherical valve core loads low head inner edge groove and sealed；Upper cover is welded with concave station in valve body upper end；Valve body is connected with bonnet.
Description
Technical field
The present invention relates to steam valve, more particularly, to a kind of innovative bellows steam applied suitable for vapour system
Valve.
Background technology
In vapour system, general general valve all selects the stop valve or gate valve of metal sealing.Stop valve and gate valve
Valve rod rotate and move up and down in the valve stem nut on valve body top, band seal valve valve open and close valve.Existing stop valve
It is that valve inlet is connected with uuper valve chamber with the structure of gate valve, the valve rod position in valve pocket easily by dielectric corrosion, is using one section
Airtight and watertight padding is rotated by valve rod and worn and torn after time, often produces the phenomenon of leakage；Especially the part of metal material is in steam
High-temperature steam and condensed water in high temperature operating mode in system use easily generation steam corrosion strikes and corrosion phenomenon.Thus in vapour system
The leakage phenomenon that the valve of middle utilization often occurs is each user's common problem.
Chinese patent CN104279004A discloses a kind of valve of the expansion machine for motor vehicles, particularly steam valve.
Valve includes：Supply space, particularly flowing steam space；Medium, particularly steam can be supplied by valve and be supplied to supply sky
Between in；Working space, during medium can be supplied to working space from supply space, and medium can expand or compress wherein；Valve
Part, can open or close the connection between supply space and working space by valve member；And reciprocating type valve rod, its is excellent
Gated the first sub-segments to be connected on valve member, and can be controlled by the second sub-segments.Valve is characterised by fold formula ripple
Pipe and/or valve reverse element, and fold formula bellows is used for partly seal operation space, and the valve element that reverses is used for returning valve member
It is dynamic, and be arranged in supply space.
Chinese patent CN2632412Y discloses a kind of bellows stop valve, and it includes valve body, flap, pin, valve rod, valve
Lid, valve stem nut, handwheel, clamp nut, it also includes bellows component, and the bellows component is by bellows and bellows
Cover composition, bellows-sheathed is on the outside of the valve rod, and the lower end of bellows is welded on the flap in valve body or valve rod, bellows it is upper
End welds together with bellows cover, and the outer of bellows cover is by the fixed joint portion for being crimped on valve body and bonnet；The valve rod
It is provided with alignment pin, described bonnet and is provided with locating slot；Medium is separated with valve body by bellows and bellows cover, made
Seepage will not be occurred again by obtaining valve rod and valve cover chamber；The locating slot being arranged in bonnet defines the displacement of bellows and valve rod
Amount, it is to avoid the accidental damage that valve rod, bellows and bellows cover are caused due to misoperation.
Chinese patent CN203926817U discloses a kind of bellows stop valve, including bonnet, valve body, valve clack cover, bellows,
Valve rod and limiting plate, the bonnet are arranged on the valve body, and valve pocket is provided with the valve body, and the bottom of the valve rod passes through institute
State bonnet to extend in the valve pocket, the bottom of the valve rod is provided with the flap connected by the valve clack cover, the valve pocket
The valve rod be provided with bellows, the lower end of the bellows is fixed on the valve rod by the limiting plate, the ripple
The valve pocket inwall around line pipe is provided with spacing annulus.The utility model is provided with spacing annulus and limiting plate, by spacing
Annulus blocks limiting plate, and then prevents bellows to be overly compressed, and extends the service life of bellows, also extends bellows
The life-span of stop valve.
The content of the invention
The purpose of the present invention is that there is provided can be by for being commonly utilized in the problems of steam valve in vapour system
Medium is isolated from the outside by medium-tight in valve pocket, can ensure that bellows steam for vapour system of the medium without leakage
Valve.
The present invention provided with valve body, valve seat, spherical valve core, low head, bellows, valve rod, nut, upper cover, graphite gasket,
Bolt, bonnet, handwheel, pad, clamp nut；The bonnet inner chamber is provided with lower concave station and upper concave station, and the lower concave station loads stone
Ink pad circle, upper concave station is used for valve stem spacing, and bonnet top outer rim is provided with external screw thread, the external screw thread and handwheel bottom endoporus
Screw-internal thread fit is screwed in；The valve stem top, which is provided with the middle part of external screw thread, valve rod, is provided with boss and valve rod in valve rod lower convex platform, valve rod
Convex platform, the valve rod lower convex platform can be spacing when valve rod rises, in valve rod between boss and valve rod convex platform control hand wheel rotating
Gap, for clamp nut locking；The valve rod is initially charged with pad and is reloaded into bonnet intracavity through hole respectively；The body cavity import
The post-processing of hardfacing alloy material is into valve seat at the top of passage upper end；The bellows two ends are connected by upper cover and low head welding respectively
Integrally；The spherical valve core loads low head inner edge groove and sealed；Upper cover and concave station welded seal in valve body upper end；It is described
Valve body is connected with bonnet.
The valve body can be fastenedly connected with bonnet using screw bolt and nut.
With existing common application in the stop valve, gate valve, bellows stop valve of vapour system compared with, the present invention have with
Lower advantage：
1st, the present invention has made further improvement to structure：
1) stem movement is used without oscilaltion design is rotated, and reduces frictional force；
2) graphite gasket is set up in bonnet inner chamber, and bellows can be prevented to overload or use under very long-term contingency rupture event,
It can ensure that medium does not leak outside；
3) it is welded to connect bellows upper cover is cylindrical with valve body upper end endoporus concave station, it is ensured that medium is not reached in bonnet
Chamber, reduces the sealing wound gasket of valve body and bonnet；
4) boss baffle plate is enclosed in the cylindrical epimere design one of bellows low head, to prevent the dirt of medium from entering bellows piece,
Ensure bellows normal work.Above innovation, can effectively improve the valve performance.
2nd, the medium in valve pocket can be isolated from the outside by the upper cover of bellows and valve body welded seal, it is ensured that medium is without outer
Leakage, reduces leakage point.
3rd, bonnet inner chamber graphite gasket can prevent bellows over burdening to damage or using very long-term in contingency rupture event
Under, reliably medium can be prevented to leak outside.
4th, in the middle part of valve rod lower convex platform design may act on it is spacing, protection bellows it is without damage.
5th, valve rod is used without the design of oscilaltion motion mode is rotated, and reduces frictional force, and graphite gasket abrasion is few, sealing
It is good；And switch light.
6th, valve body and bonnet connection are designed using without sealing gasket, reduce sealing wound gasket, and No leakage point.
7th, low head cylindrical (i.e. spherical valve core top is cylindrical) design baffle plate, to prevent dirt from entering bellows；And can band
Movable valve plug sealing is oriented to.
8th, using spherical sealed structure, operationally spherical valve core can voluntarily be rotated with media flow direction, no to concentrate mill
Damage, service life is long.
Brief description of the drawings
Fig. 1 is the structure composition schematic diagram of the embodiment of the present invention.
Embodiment
Following examples will the present invention is further illustrated with reference to accompanying drawing.
Referring to Fig. 1, the embodiment of the present invention provided with valve body 1, valve seat 2, spherical valve core 3, low head 4, bellows 5, valve rod 6,
Nut 7, upper cover 8, graphite gasket 9, bolt 10, bonnet 11, handwheel 12, pad 13 and clamp nut 14；In the bonnet 11
Chamber is provided with lower concave station and upper concave station, and the lower concave station loads graphite gasket 9, and upper concave station is spacing for valve rod 6, on the bonnet 11
Portion's outer rim is provided with external screw thread, and the external screw thread is screwed in the bottom endoporus screw-internal thread fit of handwheel 12；The top of valve rod 6 is provided with outer
Screw thread, the middle part of valve rod 6 is provided with boss and valve rod convex platform in valve rod lower convex platform, valve rod, and the valve rod lower convex platform rises in valve rod 6
When can be spacing, boss and valve rod convex platform control the running clearance of handwheel 12 in valve rod, are locked for clamp nut 14；The valve rod
6 are initially charged with pad 13 respectively is reloaded into the intracavity through hole of bonnet 11；Hardfacing alloy material at the top of the inner chamber intake channel upper end of valve body 1
Matter post-processing is into valve seat 2；The two ends of bellows 5 are welded and fused by upper cover and low head respectively；The spherical valve core 3
Load low head inner edge groove and seal；Upper cover and concave station welded seal in the upper end of valve body 1；The valve body 1 is connected with bonnet 11.
The valve body 1 is fastenedly connected with bonnet 11 using screw bolt and nut.
Claims (2)
1. the bellows steam valve for vapour system, it is characterised in that provided with valve body, valve seat, spherical valve core, low head, ripple
Pipe, valve rod, nut, upper cover, graphite gasket, bolt, bonnet, handwheel, pad, clamp nut；The bonnet inner chamber is provided with down
Concave station and upper concave station, the lower concave station load graphite gasket, and upper concave station is used for valve stem spacing, and bonnet top outer rim is provided with outer
Screw thread, the external screw thread is screwed in handwheel bottom endoporus screw-internal thread fit；The valve stem top is provided with the middle part of external screw thread, valve rod and set
There are boss and valve rod convex platform in valve rod lower convex platform, valve rod, the valve rod lower convex platform can be spacing when valve rod rises, valve rod convexity
Platform and valve rod convex platform control hand wheel rotating gap, for clamp nut locking；The valve rod is initially charged with pad and is reloaded into respectively
Bonnet intracavity through hole；The post-processing of hardfacing alloy material is into valve seat at the top of the body cavity intake channel upper end；The bellows
Two ends are welded and fused by upper cover and low head respectively；The spherical valve core loads low head inner edge groove and sealed；Upper envelope
Head and concave station welded seal in valve body upper end；The valve body is connected with bonnet.
2. it is used for the bellows steam valve of vapour system as claimed in claim 1, it is characterised in that the valve body is used with bonnet
Screw bolt and nut is fastenedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659102.8A CN107255187A (en) | 2017-08-04 | 2017-08-04 | Bellows steam valve for vapour system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659102.8A CN107255187A (en) | 2017-08-04 | 2017-08-04 | Bellows steam valve for vapour system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107255187A true CN107255187A (en) | 2017-10-17 |
Family
ID=60026529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710659102.8A Pending CN107255187A (en) | 2017-08-04 | 2017-08-04 | Bellows steam valve for vapour system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107255187A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962670A (en) * | 2018-09-30 | 2018-12-07 | 顾诚 | A kind of block-resistant type flow switch |
| CN113565995A (en) * | 2021-08-07 | 2021-10-29 | 纽顿流体科技有限公司 | Bellows seal steam distribution tube bundle system |
| CN114571901A (en) * | 2022-03-24 | 2022-06-03 | 王道林 | Valve-controlled ink stone box |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164485Y (en) * | 1993-03-01 | 1994-05-11 | 吴海宁 | Corrugated pipe ball core valve |
| JP2007071251A (en) * | 2005-09-05 | 2007-03-22 | Kitz Sct:Kk | Bellows seal valve |
| CN2898478Y (en) * | 2006-04-11 | 2007-05-09 | 赵新民 | Ball valve of corrugated pipe |
| CN201461964U (en) * | 2009-08-18 | 2010-05-12 | 西安核设备有限公司革新阀门厂 | High-pressure bellows stop valve |
| JP2010174911A (en) * | 2009-01-27 | 2010-08-12 | Hitachi Valve Ltd | On-off valve |
| CN203131060U (en) * | 2013-04-01 | 2013-08-14 | 成都凯天电子股份有限公司 | High-pressure corrugated pipe ball core cut-off valve |
| CN105003655A (en) * | 2015-05-15 | 2015-10-28 | 扬中市阀门厂有限公司 | High-pressure connecting rod type bellows globe valve |
| CN106122502A (en) * | 2016-08-29 | 2016-11-16 | 江苏明汇阀门有限公司 | Bellows stop valve special for chlorine |
| CN106812951A (en) * | 2017-01-06 | 2017-06-09 | 英侨机械制造有限公司 | Multilayer welding bellows steam valve |
-
2017
- 2017-08-04 CN CN201710659102.8A patent/CN107255187A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2164485Y (en) * | 1993-03-01 | 1994-05-11 | 吴海宁 | Corrugated pipe ball core valve |
| JP2007071251A (en) * | 2005-09-05 | 2007-03-22 | Kitz Sct:Kk | Bellows seal valve |
| CN2898478Y (en) * | 2006-04-11 | 2007-05-09 | 赵新民 | Ball valve of corrugated pipe |
| JP2010174911A (en) * | 2009-01-27 | 2010-08-12 | Hitachi Valve Ltd | On-off valve |
| CN201461964U (en) * | 2009-08-18 | 2010-05-12 | 西安核设备有限公司革新阀门厂 | High-pressure bellows stop valve |
| CN203131060U (en) * | 2013-04-01 | 2013-08-14 | 成都凯天电子股份有限公司 | High-pressure corrugated pipe ball core cut-off valve |
| CN105003655A (en) * | 2015-05-15 | 2015-10-28 | 扬中市阀门厂有限公司 | High-pressure connecting rod type bellows globe valve |
| CN106122502A (en) * | 2016-08-29 | 2016-11-16 | 江苏明汇阀门有限公司 | Bellows stop valve special for chlorine |
| CN106812951A (en) * | 2017-01-06 | 2017-06-09 | 英侨机械制造有限公司 | Multilayer welding bellows steam valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962670A (en) * | 2018-09-30 | 2018-12-07 | 顾诚 | A kind of block-resistant type flow switch |
| CN113565995A (en) * | 2021-08-07 | 2021-10-29 | 纽顿流体科技有限公司 | Bellows seal steam distribution tube bundle system |
| CN114571901A (en) * | 2022-03-24 | 2022-06-03 | 王道林 | Valve-controlled ink stone box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171017 |