CN108150655A - Pressure Steam Valve seat fixing structure - Google Patents
Pressure Steam Valve seat fixing structure Download PDFInfo
- Publication number
- CN108150655A CN108150655A CN201810144292.4A CN201810144292A CN108150655A CN 108150655 A CN108150655 A CN 108150655A CN 201810144292 A CN201810144292 A CN 201810144292A CN 108150655 A CN108150655 A CN 108150655A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- valve body
- core assembly
- fixing structure
- 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
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
- F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements
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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
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention belongs to valve body technical fields, it is related to a kind of Pressure Steam Valve seat fixing structure, including valve body, one end is provided with the inlet channel entered for fluid and the outlet flow flowed out for fluid in the valve body, correspond in valve body and valve cavity is equipped between inlet channel and outlet flow, valve cavity positioning table terrace installs valve seat, core assembly is set in the valve seat, core assembly can move along a straight line along valve base inner wall；The inlet channel is arranged in a mutually vertical manner with outlet flow, when core assembly moves in valve seat, realizes the adjusting to inlet channel and outlet flow connected state；Side setting valve deck axially opposing with inlet channel, is equipped with filler, the valve rod of core assembly is pierced by from the pilot hole of valve deck on the valve body between valve deck and valve body.The seat fixing structure requirement on machining accuracy is relatively low, dismounting is with easy to maintenance, and sealing effect is reliable.
Description
Technical field
The invention belongs to valve body technical fields, are related to a kind of Pressure Steam Valve seat fixing structure.
Background technology
Pressure Steam Valve is to adjust the device of high steam by powered in Process Control System.Pressure Steam Valve is pressed
Change the position that element is retained in valve, and then the flow to high steam, temperature, liquid level and pressure according to the signal that control system is sent out
Power is adjusted, and has reached the needs for meeting whole system.At present, traditional seat fixing structure usually only has screw-type and pressure
Two kinds of shell type.The general thread size of valve seat of screw-type is bigger, can not reach fixed valve base and gasket is close by manually screwing
The target of envelope.Simultaneously because under valve seat hot soak condition, the danger of high-temerature creep easily occurs at high operating temperatures for screw thread
Evil phenomenon.Secondly, can not be quick, laborsaving when carrying out site examining and repairing, in the case that not damaging, valve seat is externally threaded, completes to tear open
Dress task.Although traditional pressing sleeve formula valve seat construction solves the problems, such as that the dismounting of screw-type structure is difficult, but due to valve seat
Fixation is ensured by the mutual axial height size of all correlated parts, this certainly will be to the axial dimension of all parts
Strict requirements are proposed, increase the difficulty and cost of part processing.Simultaneously because what this Pressure Steam Valve generally used
It is valve deck self-sealing packing structure, the characteristics of self-sealing packing structure is when valve inner pressure is bigger, and medium pushes away from inside to outside
The active force bigger of dynamic valve deck, the relative movement of valve deck have been brought to filler better seal effect；Simultaneously because the shifting of valve deck
It is dynamic, close height dimension was coordinated to produce gap originally.Valve seat loose at this time is bound to that opposite position occurs in the axial direction
It moves, and then influences the sealing to seat bottom portion gasket, cause the generation of interior leakage phenomenon.From this it can be concluded that screw-type
Valve seat construction and pressure nested structure cannot all meet the application of such operating mode.
Invention content
In view of the above-mentioned problems, providing a kind of Pressure Steam Valve seat fixing structure, which processes the present invention
Required precision is relatively low, dismounting is with easy to maintenance, and sealing effect is reliable.
Technical solution according to the invention：A kind of Pressure Steam Valve seat fixing structure, it is characterised in that：Including valve body,
One end is provided with the inlet channel entered for fluid and the outlet flow flowed out for fluid in the valve body, right in valve body
Valve cavity, valve cavity positioning table terrace installation valve seat, in the valve seat should be equipped between inlet channel and outlet flow
Interior setting core assembly, core assembly can move along a straight line along valve base inner wall；The inlet channel is mutually perpendicular to set with outlet flow
It puts, when core assembly moves in valve seat, realizes the adjusting to inlet channel and outlet flow connected state；On the valve body with
The axially opposing side setting valve deck of inlet channel, is equipped with filler, valve rod the leading from valve deck of core assembly between valve deck and valve body
Xiang Kongzhong is pierced by.
As a further improvement on the present invention, the core assembly is equipped with several adjusting windows, into the stream in valve body
Body flows to outlet flow by adjusting window.
As a further improvement on the present invention, the core assembly outer diameter guide surface is equipped with and slips empty annular groove, core assembly
Outer diameter guide surface matches guiding with valve seat endoporus.
As a further improvement on the present invention, the back side of the valve seat is provided with the step surface for installing gasket, valve seat
Endoporus is provided with guide surface, and the bottom of valve seat is provided with circular cone guide face.
As a further improvement on the present invention, the valve seat is fixed on by valve seat fixed plate on valve body, valve seat fixed plate
Circumference on be uniformly arranged multiple threaded holes, adjusting screw is set in threaded hole.
As a further improvement on the present invention, corresponding to the top of valve seat fixed plate setting baffle, baffle on the valve body
For circlip type part.
As a further improvement on the present invention, the filler is self-sealing packing.
The technical effects of the invention are that：1）, dismounting and easy to maintenance first, without the dismounting tooling of design specialized,
Do not need to provide special pneumatic or hydraulic pressure auxiliary tool to dismount valve seat, at the same dismount it is time saving, laborsaving, will not be to part
Secondary injury is formed, repair utilization rate is higher.
2）, it is simple in structure, compact, without by increasing the part of a pressing sleeve formula come fixed valve base, reducing part more
Type；Simultaneously because it does not need to constrain valve seat by axial height, so the machining accuracy for correlated parts height
It is required that can reduce, the production cost of entire product can be saved, improves economic benefit.
3）, be even circumferential distribution due to its adjusting screw, so the active force on whole circumference face is uniform；
Such structure can make the gasket seal effect of seat bottom portion more preferable.
4）, valve seat fixed plate and baffle arrangement it is simple, part processing precision requirement it is relatively low, replace the cost of its entire part
It is relatively low, better economic benefit.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the A of Fig. 1 to partial enlarged view.
Reference sign：1- valve bodies, 2- valve seats, 3- gaskets, 4- adjusting screws, 5- valve seats fixed plate, 6- core assemblies,
7- valve decks, 8- baffles, 9- self-sealing packings, 10- outlet flows, 11- inlet channels.
Specific embodiment
The specific embodiment of the present invention is further described below in conjunction with the accompanying drawings.
With reference to specific drawings and examples, the invention will be further described.
As depicted in figs. 1 and 2：The present invention includes valve body 1, the inlet flow that one end setting in valve body 1 enters for fluid
Road 11, the other end setting in valve body 1 are additionally provided with valve cavity, valve for the outlet flow 10 of fluid outflow in valve body 1
Body cavity is provided with the positioning table of installation valve seat 2 between inlet channel 11 and outlet flow 10, in the cavity bottom of valve body 1
Terrace, movement of the constraint valve seat 2 inside valve body 1 in radial directions, straight line can be done along 2 inner wall of valve seat by being set in valve seat 2
The core assembly 6 of movement is provided with valve deck 7 at 1 top of valve body, reaches sealing by filler 9 between valve deck 7 and valve body 1
Effect ensures that the phenomenon that leakage does not occur in valve body, and on the top of valve seat 2, there are one valve seat fixed plate 5, valve seat fixed plates for setting
Multiple threaded holes of a circle circle distribution are provided in 5, setting is there are one adjusting screw 4 in each threaded hole, by adjusting spiral shell
The screw thread of nail 4 screws to constrain the movement of valve seat 2 in the axial direction, is set on 5 top of valve seat fixed plate there are one baffle 8,
Baffle 8 is fixed in the groove inside valve body 1, and axial movement of the valve seat fixed plate 5 in valve body 1 is constrained by baffle 8.
Specifically, inlet channel 11 passes through inlet channel with outlet flow 10 respectively positioned at the lower end of valve body 1 and left upper end
11 fluids entered in valve body 1 can flow to outlet flow 10, and flow out from outlet flow 10 by valve cavity.Valve cavity
Body region is located at the top of 1 horizontal axis of valve body.Valve seat 2 is in vertically-mounted state in valve body 1, and core assembly 6 is in valve seat 2
It is interior and with valve seat 2 in coaxial distribution, core assembly 6 can be close to the inner wall progress of valve seat 2 round-trip linear motion vertically.Work as spool
Component 6 during linear motion, can adjust the connected state between the inlet channel 11 in valve body 1 and outlet flow 10 in valve seat 2
State,.
The axis direction of valve seat 2 is conllinear with the axis direction of valve body 1, and there are one gaskets 3 for the back side setting of valve seat 2
Erecting bed terrace, the radial direction of step surface can ensure gasket 3 because squeezing without loosely falling, and the axial direction for adjusting face can be very
Good guarantee gasket 3 does not fail due to the excessive extruding of bolt, and there are one longer guide surfaces for the endoporus setting of valve seat 2, prevent
The phenomenon that core assembly 6 is made to shake back and forth due to fluid high-pressure washes away, core assembly 6 is caused to be broken, the bottom of valve seat 2 are set
It puts there are one circular cone guide face, can be good at that fluid is guided to enter in core assembly 6.
Further, core assembly 6 is provided with adjusting window in sealing surface lower part, adjust window be not only intake channel with
The bridge of exit passageway, additionally it is possible to the flow for fluid being controlled to pass in and out by adjusting the size of window area, core assembly 6 it is outer
The endoporus of diameter and valve seat 2 is fitted close, since 6 outer diameter of core assembly has longer guiding length, in order to reduce difficulty of processing, same
When be also that part is taken 6 outer diameter guide surface of core assembly to slip void the phenomenon that avoiding that spool jam occurs due to guide surface is long
Design feature, i.e. core assembly（6）Outer diameter guide surface is equipped with and slips empty annular groove 6-1, the outer diameter guide surface and valve seat of core assembly 6
2 endoporus match guiding.
Valve seat fixed plate 5 is distributed a circle threaded hole on its circumference, and adjusting screw 4 is provided in threaded hole, passes through tune
The screw thread of section screw 4 screws to realize the compression to gasket, to achieve the effect that sealing, the spiral shell in the valve seat fixed plate 5
Pit be uniformly, multiple spot distribution, such distributed architecture can ensure gasket compression power continuous and effective and uniformly.
Baffle 8 is not monoblock part, in order to meet its special installation requirement, baffle 8 using circlip type structure.
Filler 9 is self-sealing packing, and being structurally characterized in that when 1 internal pressure higher grade of valve body for self-sealing packing is close
Envelope effect is better, and since this design feature has in industry been widely recognized and has used, I is not elaborating herein.
In the embodiment of the present invention, valve seat 2 is to reach fixed effect by the adjusting screw 4 in valve seat fixed plate 5.With
The screw-type valve seat of traditional type is compared, and needs dedicated tooling in dismounting first, while come by hydraulic pressure or pneumatic impact spanner
Installation task is completed, it is time-consuming, laborious, it is impossible to which that satisfaction is simple, quickly installs mission requirements；Secondly the valve seat of screw-type is in high temperature
Under, the harm of high-temerature creep easily occurs for screw thread, and there are security risks；Last screw-type valve seat easily damages spiral shell in dismounting
Line, the secondary use rate of valve seat be not high.Compared with the pressing sleeve formula valve seat of traditional type, first due to Pressure Steam Valve in order to meet it
The duty requirements of high pressure, valve deck is using self-sealing packing, when pressure rise in valve, using the valve deck 7 of self-sealing packing
Axial gap increases, and valve seat 2 is caused to have the tendency that axial movement, gasket leaks；Second point, due to need by pressing sleeve,
The height of valve seat 2 cooperates to reach with valve body 1, valve deck 7 fixes valve seat 2, so pressure nested structure adding for valve seat 2
Work required precision is increased, and processing cost is bigger.Finally, existing seat fixing structure, valve seat fixed plate 5 and 8 part of baffle
Shape is simple, easy to process, and part exchanging cost is relatively low.
In the embodiment of the present invention, one end setting in the valve body 1 is used for the inlet channel 11 of fluid entrance and is used for
The outlet flow 10 of fluid outflow, is additionally provided with valve cavity, the valve cavity is located at inlet channel 11 with going out in valve body 1
Between mouth runner 10, the cavity bottom of valve body is provided with the positioning table terrace of installation valve seat 2, ensures valve seat inside valve body 1
Constraint in radial directions, the core assembly 6 that setting can be moved in a straight line along 2 inner wall of valve seat in the valve seat 2, in valve
1 top of body is provided with valve deck 7, achievees the effect that sealing by self-sealing packing 9 between valve deck 7 and valve body 1, ensures valve body
It does not leak outside, on the top of valve seat 2, setting is provided with a circle circle distribution there are one valve seat fixed plate 5 in valve seat fixed plate 5
Multiple threaded holes, there are one adjusting screws 4 for setting in each threaded hole, screw to constrain by the screw thread of adjusting screw 4
The movement of valve seat 2 in the axial direction, on 5 top of valve seat fixed plate, there are one baffle 8, baffle 8 is arranged on inside valve body 1 for setting
Groove in, axial movement of the valve seat fixed plate 5 in valve body 1 is constrained by baffle 8.
The inner wall that the core assembly 6 being mounted in valve seat 2 in the present invention can be close to valve seat 2 moves up, at this time spool group
Window on part 6 is gradually opened, and fluid enters the inside of valve seat 2 along the inlet channel 11 of valve body 1；Again by window flow out into
Enter at the cavity of valve body, the outlet flow 10 of valve body 1 is finally entered by cavity；The mounting surface of gasket 3 in 2 back side of valve seat,
Not only can ensure gasket 3 squeeze when do not fall loosely, while avoid because bolt screw power it is excessive due to fail；Valve seat is fixed
Threaded hole on plate 5 is that uniform and multiple spot is distributed, and provides reliable, uniform valve seat axial force；Baffle 8 is clamp spring
Formula structure meets its special installation requirement；Pressure Steam Valve valve group fixed structure in the present invention, meets dismounting first
With requirement easy to maintenance, the dismounting tooling without design specialized, it is not required that it is auxiliary to provide special pneumatic or hydraulic tool
Dismounting valve seat is helped, while dismounts valve seat, it is time saving, laborsaving, secondary injury will not be formed to part, repair utilization rate is higher；Its
Secondary valve seat fixed plate and baffle arrangement are simple, and part processing precision is relatively low, and the cost for replacing its entire part is relatively low, economic benefit
Preferably；Summary feature, the present invention not only stable structure, reliable, convenient for disassembly and assembly, production cost is relatively low, and can meet mesh
In preceding existing most Pressure Steam Valve operating modes.
Claims (7)
1. a kind of Pressure Steam Valve seat fixing structure, it is characterised in that：Including valve body（1）, the valve body（1）Interior one end setting
It is useful for the inlet channel of fluid entrance（11）And the outlet flow for fluid outflow（10）, valve body（1）It is interior correspond into
Mouth runner（11）With outlet flow（10）Between be equipped with valve cavity, valve cavity positioning table terrace installation valve seat（2）, described
Valve seat（2）Interior setting core assembly（6）, core assembly（6）It can be along valve seat（2）Inner wall moves along a straight line；The inlet channel（11）
With outlet flow（10）It is arranged in a mutually vertical manner, core assembly（6）In valve seat（2）When interior mobile, realize to inlet channel（11）With
Outlet flow（10）The adjusting of connected state；The valve body（1）Upper and inlet channel（11）Axially opposing side sets valve deck
（7）, valve deck（7）With valve body（1）Between be equipped with filler（9）, core assembly（6）Valve rod from valve deck（7）Pilot hole in be pierced by.
2. Pressure Steam Valve seat fixing structure as described in claim 1, it is characterised in that：The core assembly（6）On set
There are several adjusting windows, into valve body（1）Interior fluid flows to outlet flow by adjusting window（10）.
3. Pressure Steam Valve seat fixing structure as described in claim 1, it is characterised in that：The core assembly（6）Outer diameter
Guide surface is equipped with and slips empty annular groove（6-1）, core assembly（6）Outer diameter guide surface and valve seat（2）Endoporus matches guiding.
4. Pressure Steam Valve seat fixing structure as described in claim 1, it is characterised in that：The valve seat（2）The back side set
It is equipped with that gasket is installed（3）Step surface, valve seat（2）Endoporus is provided with guide surface, valve seat（2）Bottom be provided with circular cone and lead
Stream interface.
5. Pressure Steam Valve seat fixing structure as described in claim 1, it is characterised in that：The valve seat（2）Pass through valve seat
Fixed plate（5）It is fixed on valve body（1）On, valve seat fixed plate（5）Circumference on be uniformly arranged multiple threaded holes, set in threaded hole
Put adjusting screw.
6. Pressure Steam Valve seat fixing structure as claimed in claim 5, it is characterised in that：The valve body（1）On correspond to
Valve seat fixed plate（5）Top setting baffle（8）, baffle（8）For circlip type part.
7. Pressure Steam Valve seat fixing structure as described in claim 1, it is characterised in that：The filler（9）For self sealss
Filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144292.4A CN108150655A (en) | 2018-02-12 | 2018-02-12 | Pressure Steam Valve seat fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144292.4A CN108150655A (en) | 2018-02-12 | 2018-02-12 | Pressure Steam Valve seat fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150655A true CN108150655A (en) | 2018-06-12 |
Family
ID=62459927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810144292.4A Pending CN108150655A (en) | 2018-02-12 | 2018-02-12 | Pressure Steam Valve seat fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150655A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206932A (en) * | 2019-07-03 | 2019-09-06 | 武汉欣力瑞机电设备有限公司 | A kind of proportioning valve |
| CN112984207A (en) * | 2021-04-09 | 2021-06-18 | 艾肯（江苏）工业技术有限公司 | Pressure reducing valve |
| CN114962677A (en) * | 2022-05-20 | 2022-08-30 | 重庆川仪调节阀有限公司 | Supercritical high-pressure regulating valve and sealing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6095186A (en) * | 1998-06-05 | 2000-08-01 | Arca Regler Gmbh | Plural valve seating arrangement |
| CN201326826Y (en) * | 2008-11-20 | 2009-10-14 | 无锡智能自控工程有限公司 | High-pressure multistage step-down cage balanced type angle valve |
| CN106051179A (en) * | 2016-07-29 | 2016-10-26 | 上海凯工阀门有限公司 | High-performance metal hard sealing butterfly valve |
| CN205896376U (en) * | 2016-08-16 | 2017-01-18 | 江南阀门有限公司 | Balanced cage type adjusting valve of two direction low noises |
| CN107314152A (en) * | 2017-08-15 | 2017-11-03 | 无锡市亚迪流体控制技术有限公司 | Superhigh-temperature and-pressure steam evacuation valve |
| CN208041148U (en) * | 2018-02-12 | 2018-11-02 | 无锡智能自控工程股份有限公司 | Pressure Steam Valve seat fixing structure |
-
2018
- 2018-02-12 CN CN201810144292.4A patent/CN108150655A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6095186A (en) * | 1998-06-05 | 2000-08-01 | Arca Regler Gmbh | Plural valve seating arrangement |
| CN201326826Y (en) * | 2008-11-20 | 2009-10-14 | 无锡智能自控工程有限公司 | High-pressure multistage step-down cage balanced type angle valve |
| CN106051179A (en) * | 2016-07-29 | 2016-10-26 | 上海凯工阀门有限公司 | High-performance metal hard sealing butterfly valve |
| CN205896376U (en) * | 2016-08-16 | 2017-01-18 | 江南阀门有限公司 | Balanced cage type adjusting valve of two direction low noises |
| CN107314152A (en) * | 2017-08-15 | 2017-11-03 | 无锡市亚迪流体控制技术有限公司 | Superhigh-temperature and-pressure steam evacuation valve |
| CN208041148U (en) * | 2018-02-12 | 2018-11-02 | 无锡智能自控工程股份有限公司 | Pressure Steam Valve seat fixing structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206932A (en) * | 2019-07-03 | 2019-09-06 | 武汉欣力瑞机电设备有限公司 | A kind of proportioning valve |
| CN112984207A (en) * | 2021-04-09 | 2021-06-18 | 艾肯（江苏）工业技术有限公司 | Pressure reducing valve |
| CN114962677A (en) * | 2022-05-20 | 2022-08-30 | 重庆川仪调节阀有限公司 | Supercritical high-pressure regulating valve and sealing method thereof |
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Application publication date: 20180612 |
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| RJ01 | Rejection of invention patent application after publication |