CN106468370A - Double-deck valve gap for hoisting type valve - Google Patents
Double-deck valve gap for hoisting type valve Download PDFInfo
- Publication number
- CN106468370A CN106468370A CN201510519125.XA CN201510519125A CN106468370A CN 106468370 A CN106468370 A CN 106468370A CN 201510519125 A CN201510519125 A CN 201510519125A CN 106468370 A CN106468370 A CN 106468370A
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- China
- Prior art keywords
- valve
- valve gap
- gap
- interior
- double
- 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
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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
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides a kind of double-deck valve gap for hoisting type valve, it includes the interior valve gap being arranged in valve casing, and the outer valve gap fixing with valve casing end phase, described internal valve lid is provided with the centre bore passing through for valve rod, the outer surface of interior valve gap is provided with the external screw thread being adapted with the female thread on valve casing inwall, and described outer valve gap and interior valve cover chamber are fixed with sealing ring.Present configuration is simply it is easy to manufacturing and installing, and saves installing space.
Description
Technical field
The present invention relates to turbine admission valve, more particularly to a kind of double-deck valve gap for hoisting type valve.
Background technology
Adopt hoisting type high-power high-parameter steam turbine admission valve more, reach ultra supercritical parameter with initial steam pressure temperature, pass
Relaxation property at a temperature of system single-beat valve bonnet bolt material work gradually can not meet the requirement of longtime running under top load.At present
Widespread practice adopts the double-deck valve cover structure of threaded ring to reduce the steam load that valve gap bolt bears, but adopts this kind of bilayer
Valve cover structure also leads to valve mechanism more complicated simultaneously, and manufacturing cost increases, and space requirement also accordingly improves.As Chinese patent
ZL200620044571.6 discloses a kind of steam turbine main steam admission valve bilayer valve gap, and it includes interior valve gap, threaded collar, outer valve
Lid, interior bonnet central has through hole, and interior valve gap central through hole loads valve casing after being sleeved on valve rod through bushing, and valve casing inwall is opened
There is screw thread, threaded collar is annulus, screw thread ring outer surface has to be threaded in valve casing and pushes down interior valve gap, and outer valve gap is solid through bolt
It is scheduled on outside valve casing.The total length of this double-deck valve gap is longer, and interior valve gap is fixed by threaded collar, and structure is complex.
Accordingly, it would be desirable to the double-deck valve gap used by a kind of steam turbine valve of compact conformation.
Content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of double-deck valve gap for hoisting type valve,
For solving valve cover structure complexity, the high problem of production cost in prior art.
For achieving the above object and other related purposes, the present invention provides a kind of double-deck valve gap for hoisting type valve, and it includes
It is arranged on the interior valve gap in valve casing, and the outer valve gap fixing with valve casing end phase, described internal valve lid is provided with and passes through for valve rod
Centre bore, the outer surface of interior valve gap is provided with external screw thread, described outer valve gap and the interior valve gap being adapted with the female thread on valve casing inwall
Between be fixed with sealing ring.
Preferably, described outer valve gap and described valve casing end are fixed by multiple bolts.
Preferably, the outside of described sealing ring is provided with the locating ring of fixing seal ring.
Preferably, described valve casing is provided with the groove placing sealing member, and sealing member is pressed on described by the inner face of described interior valve gap
In groove.
As described above, the double-deck valve gap for hoisting type valve of the present invention, have the advantages that：It adopts with outer spiral shell
The interior valve gap of stricture of vagina, makes interior valve gap directly carry out screw thread with valve casing and is connected, need not be fixed female thread by other auxiliary members,
So that the entire length of valve gap is reduced, structure is more succinct, reduce manufacturing cost and the space requirement of valve.
Brief description
Fig. 1 is shown as the double-deck valve gap schematic diagram for hoisting type valve of the present invention.
Component label instructions
Valve gap in 1
2 outer valve gaps
3 valve rods
4 valve casings
5 bushings
6 bolts
7 sealing members
8 sealing rings
9 locating rings
Specific embodiment
Hereinafter embodiments of the present invention are illustrated by particular specific embodiment, those skilled in the art can be taken off by this specification
The content of dew understands other advantages and effect of the present invention easily.
Refer to Fig. 1.It should be clear that structure depicted in this specification institute accompanying drawings, ratio, size etc., all only in order to coordinate
Content disclosed in bright book, so that those skilled in the art understands and reads, is not limited to the enforceable restriction of the present invention
Condition, therefore do not have technical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size, in not shadow
Ring under present invention effect that can be generated by and the purpose that can reach, all should still fall and can contain in disclosed technology contents
In the range of lid.Meanwhile, in this specification cited as " on ", D score, "left", "right", " middle " and " one " etc. term,
Be merely convenient to describe understands, and is not used to limit the enforceable scope of the present invention, being altered or modified of its relativeness,
No under essence change technology contents, when being also considered as the enforceable category of the present invention.
As shown in figure 1, the present invention provides a kind of double-deck valve gap for hoisting type valve, it includes being arranged on interior in valve casing 4
Valve gap 1, and the outer valve gap 2 fixing with valve casing end phase, interior valve gap 1 is provided with the centre bore passing through for valve rod 3, interior valve gap
1 outer surface is provided with the external screw thread being adapted with the female thread on valve casing inwall, is fixed with close between outer valve gap 2 and interior valve gap 1
Seal ring 8.The present invention arranges external screw thread using the outer surface in interior valve gap, and interior valve gap is directly connected with valve casing screw thread, Wu Xuzeng
If other auxiliary fixing member, simplify the structure of whole valve gap, reduce manufacturing cost and the space requirement of valve.
During installation, valve 3 bar is arranged on the center in the hole of interior valve gap 1 by bushing 5；Interior valve gap 1 passes through external screw thread and valve casing 4
Interior female thread screw thread is connected, the fixation of valve gap in realization, and usually, it is solid that multiple bolts 6 are passed through in outer valve gap 2 and valve casing end
Fixed, the setting of interior valve gap 1 can reduce valve gap bolt load, so that bolt material grade and specification all can be greatly reduced；Simultaneously interior
Valve gap 1, self by being threadedly secured in valve casing 4, makes valve mechanism more succinct, reduces manufacturing cost and space requirement.
Position above-mentioned sealing ring 8 for convenience, be provided with the locating ring 9 of fixing seal ring 8 in the outside of sealing ring 8, sealing ring
Setting increased the air-tightness of valve gap.
Above-mentioned valve casing 4 is provided with the groove placing sealing member 7, and sealing member 7 is pressed in groove the inner face of interior valve gap 1.
Interior valve gap 1 is fixed in valve casing 4 external screw thread, bears steam load；Sealing member 7 (such as U-loop) is arranged on valve casing 4
Groove in, compressed using interior valve gap 1, reached sealing function.
In sum, the double-deck valve gap for hoisting type valve of the present invention, it adopts with externally threaded interior valve gap, makes internal valve
Lid directly carries out screw thread with valve casing and is connected, and need not be fixed female thread by other auxiliary members, so that the entire length of valve gap is subtracted
Little, structure is more succinct, reduces manufacturing cost and the space requirement of valve.So, the present invention effectively overcomes in prior art
Various shortcoming and have high industrial utilization.
Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any it is familiar with this skill
The personage of art all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Therefore, such as
Those of ordinary skill in the art completed under without departing from disclosed spirit and technological thought all etc.
Effect modifications and changes, must be covered by the claim of the present invention.
Claims (4)
1. a kind of double-deck valve gap for hoisting type valve is it is characterised in that include being arranged on interior valve gap (1) in valve casing (4),
And the outer valve gap (2) fixing with valve casing end phase, described interior valve gap (1) is provided with the centre bore passing through for valve rod (3),
The outer surface of interior valve gap (1) is provided with the external screw thread being adapted with the female thread on valve casing inwall, described outer valve gap (2) and interior
It is fixed with sealing ring (8) between valve gap (1).
2. the double-deck valve gap for hoisting type valve according to claim 1 it is characterised in that：Described outer valve gap (2) and institute
State valve casing end fixing by multiple bolts (6).
3. the double-deck valve gap for hoisting type valve according to claim 1 it is characterised in that：Outside described sealing ring (8)
Side is provided with the locating ring (9) of fixing seal ring.
4. the double-deck valve gap for hoisting type valve according to claim 1 it is characterised in that：Described valve casing (4) is provided with
Place the groove of sealing member (7), sealing member (7) is pressed in described groove the inner face of described interior valve gap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510519125.XA CN106468370A (en) | 2015-08-21 | 2015-08-21 | Double-deck valve gap for hoisting type valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510519125.XA CN106468370A (en) | 2015-08-21 | 2015-08-21 | Double-deck valve gap for hoisting type valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106468370A true CN106468370A (en) | 2017-03-01 |
Family
ID=58229310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510519125.XA Pending CN106468370A (en) | 2015-08-21 | 2015-08-21 | Double-deck valve gap for hoisting type valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106468370A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200949478Y (en) * | 2006-08-04 | 2007-09-19 | 上海汽轮机有限公司 | Double layer valve cap of steam turbine main steam intake valve |
| CN202342454U (en) * | 2011-10-31 | 2012-07-25 | 重庆莱美药业股份有限公司 | Clamping type double-valve cover |
| US20120305110A1 (en) * | 2010-04-30 | 2012-12-06 | Jun Zhou | Bidirectional pressure self-balancing stop valve |
| CN202708165U (en) * | 2012-07-12 | 2013-01-30 | 盐城市中液液压件有限公司 | Ultrathin ball valve with valve cover for sealing |
| CN203906820U (en) * | 2014-07-01 | 2014-10-29 | 中国船舶重工集团公司第七�三研究所 | Quick release valve for gas turbine device |
| CN204296699U (en) * | 2014-12-09 | 2015-04-29 | 四川制动科技股份有限公司 | A kind of railway brake valve pressure signal conversion equipment |
| CN204961963U (en) * | 2015-08-21 | 2016-01-13 | 上海电气电站设备有限公司 | A double -deck valve gap for promoting formula valve |
-
2015
- 2015-08-21 CN CN201510519125.XA patent/CN106468370A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200949478Y (en) * | 2006-08-04 | 2007-09-19 | 上海汽轮机有限公司 | Double layer valve cap of steam turbine main steam intake valve |
| US20120305110A1 (en) * | 2010-04-30 | 2012-12-06 | Jun Zhou | Bidirectional pressure self-balancing stop valve |
| CN202342454U (en) * | 2011-10-31 | 2012-07-25 | 重庆莱美药业股份有限公司 | Clamping type double-valve cover |
| CN202708165U (en) * | 2012-07-12 | 2013-01-30 | 盐城市中液液压件有限公司 | Ultrathin ball valve with valve cover for sealing |
| CN203906820U (en) * | 2014-07-01 | 2014-10-29 | 中国船舶重工集团公司第七�三研究所 | Quick release valve for gas turbine device |
| CN204296699U (en) * | 2014-12-09 | 2015-04-29 | 四川制动科技股份有限公司 | A kind of railway brake valve pressure signal conversion equipment |
| CN204961963U (en) * | 2015-08-21 | 2016-01-13 | 上海电气电站设备有限公司 | A double -deck valve gap for promoting formula valve |
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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 |
Application publication date: 20170301 |
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| RJ01 | Rejection of invention patent application after publication |