CN107420573A - A kind of pretension compensates movable valve base high temperature high voltage resistant two-way hard seal spiral valve - Google Patents
A kind of pretension compensates movable valve base high temperature high voltage resistant two-way hard seal spiral valve Download PDFInfo
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- CN107420573A CN107420573A CN201710493905.0A CN201710493905A CN107420573A CN 107420573 A CN107420573 A CN 107420573A CN 201710493905 A CN201710493905 A CN 201710493905A CN 107420573 A CN107420573 A CN 107420573A
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- flap
- baffle
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- 238000007789 sealing Methods 0.000 claims abstract description 53
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 32
- 229910002804 graphite Inorganic materials 0.000 claims description 32
- 239000010439 graphite Substances 0.000 claims description 32
- 210000004907 gland Anatomy 0.000 claims description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 18
- 239000010935 stainless steel Substances 0.000 claims description 18
- 230000003628 erosive effect Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 7
- 239000002344 surface layer Substances 0.000 claims description 7
- 238000002788 crimping Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 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
- F16K5/0663—Packings
-
- 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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
- F16K5/08—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
- 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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/204—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Sealing Devices (AREA)
Abstract
A kind of pretension compensates movable valve base high temperature high voltage resistant two-way hard seal spiral valve, including valve body, valve rod, push rod and flap, it is assumed that the center line of valve body is set along left and right horizontal direction, edge is extend into valve body valve rod from top to bottom, rotate between valve rod and valve body and connected by seal assembly, push rod is radially projecting in valve body along valve body from bottom to top, push rod is fixedly connected with the valve body, valve body lower end is provided with bottom and gasket seal for blocking push rod, the center line of valve rod and push rod overlaps, flap is located in valve body, valve rod lower end is fixedly connected with flap left upper portion, flap left lower is rotatably connected on push rod by axle sleeve, on the right side of flap right side and valve body removable valve base sealing structure is provided between circumferential inner wall；Structural manufacturing process of the present invention is easily realized, is reasonable in design, good sealing effect, can easily be accommodated, convenient maintenance and replacement, is a kind of new structure, and poly- one, is a pioneering and creative novel valve the advantages of as butterfly valve and ball valve.
Description
Technical field
The present invention relates to a kind of valve, more particularly to a kind of compensation movable valve base high temperature high voltage resistant two-way hard seal rotation of pretension
Ball valve.
Background technology
Spiral valve is a kind of valve for the new structure form developed in recent years, be widely used in concentrated supply of heating in the city and
Open and close are done on high pressure steam pipeline or play regulation rate-of flow and are used.The structure of spiral valve is only used for flange-type structure at present, because
Limited by the baffle forms of fixed movable valve base, baffle plate is to be fixed on fastening screw on valve body, need to stretch one laterally
Fragment position, so flange-type structure has this position to allow it to use, cause spiral valve in recent years and be only used on flanged valve
Situation.In addition, the secondary sealing form of existing movable valve base structure and the pretightning force of a motion compensation are real with " O " type rubber ring
Existing, it can not be used for high temperature and high pressure pipeline by the temperature limiting of "O"-ring material；It is normal that form is welded to connect in valve
Connected for pipeline, and in high-temperature and pressure pipeline, for existing structure type because welding valve does not have a flange, outer junction is suitable
In tube wall, it is difficult to realize using existing structure.
The content of the invention
The present invention is in order to solve weak point of the prior art, there is provided a kind of pretension compensates movable valve base high temperature high voltage resistant
Two-way hard seal spiral valve.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of pretension compensates movable valve base high temperature resistant
High-voltage bidirectional hard sealing ball valve, including valve body, valve rod, push rod and flap, it is assumed that the center line of valve body is along left and right horizontal direction
Setting, valve rod is radially projecting in valve body along valve body from top to bottom, is rotated between valve rod and valve body and is connected by seal assembly,
Push rod is radially projecting in valve body along valve body from bottom to top, and push rod is fixedly connected with the valve body, and valve body lower end is provided with for blocking
The center line of the bottom and gasket seal of push rod, valve rod and push rod is overlapped, and flap is located in valve body, valve rod lower end and flap left side
The interior square hole that top is set is fixedly connected, and flap left lower is rotatably connected on push rod by axle sleeve, flap right side and valve
On the right side of body removable valve base sealing structure is provided between circumferential inner wall；
Removable valve base sealing structure includes overall in the valve seat of cirque structure, sealing gland, first baffle and the first card
Ring, valve body circumferential inner wall are provided with outer ring step in place on the right side of neighbouring valve rod, and valve seat excircle is provided with and outer ring step
The annular step of cooperation, the first flexible stone being filled between valve seat periphery and valve interior wall on the right side of outer ring step
Ink, sealing gland, first baffle and the cylindrical of the first snap ring contact with valve interior wall, are provided with the left of sealing gland tight to the left
The annular pressing plate of the first soft graphite is pressed, first baffle is located on the right side of sealing gland, and valve interior wall is provided with positioned at first baffle
First annular groove on right side, the first snap ring are arranged in the first annular groove, and first baffle is threaded with first in left-right direction
Screw, the first holding screw uniformly and are arranged at intervals several along first baffle circumferencial direction, a left side for the first screw
The soft graphite of annular pressing plate top pressure first is set to realize elevated-temperature seal on the right side of the top pressure sealing gland of end；
Valve interior wall is provided with the adjustable primary seal drive mechanism coordinated with top pressure on the right side of valve seat；In adjustable primary seal
In the presence of drive mechanism, matched somebody with somebody on the left of flap external peripheral surface and valve seat between internal circular surfaces by the secondary crimping sealing of primary seal
Close.
Adjustable primary seal drive mechanism includes overall in the push pedal of cirque structure, spring, second baffle and the
Two snap rings, valve seat right side along the circumferential direction offer several uniform and spaced mounting grooves, and spring is arranged on installation
In groove, spring right-hand member stretches out mounting groove, and push pedal left end coordinates with spring right-hand member top pressure, cylindrical on the right side of push pedal and valve body circumferential inner wall
Contact, valve interior wall are provided with the second annular groove on the right side of second baffle, and the second snap ring is arranged in the second annular groove, the
Two baffle plates are located on the right side of push pedal, and second baffle is threaded with the second screw in left-right direction, and the second holding screw is along the
Two baffle plate circumferencial directions are uniform and are arranged at intervals several, the left end top pressure push pedal right side of the second screw, second baffle
Right side outward flange contacts with the second snap ring top pressure.
The secondary flap external peripheral surface and valve seat left side internal circular surfaces of including of primary seal is in left thick right thin conical structure,
The conical structure surface overlaying of flap external peripheral surface has the middle stainless steel surface layer for slightly rousing spherical structure；In the work of spring
Under, the stainless steel surface layer on flap crimps sealing with internal circular surfaces on the left of valve seat and coordinated.
Seal assembly includes the valve neck being structure as a whole with valve body, and valve rod extend into valve body through valve neck, set on valve body
It is equipped with the spacing ring of valve rod wall contacts, the annular seal space being provided between valve neck inwall and valve rod outer wall above spacing ring,
Step groove is provided with valve neck on annular seal space top, is disposed with lower stainless steel sleeve, the second flexibility in annular seal space from bottom to top
Graphite, upper stainless steel sleeve, graphite sealing gasket, erosion control set and gland, erosion control are disposed with step groove from bottom to top
Graphite packing, gland and erosion control set are provided between set inwall and valve rod outer wall and passes through six square bolts in parallel with valve rod
It is fixedly connected with valve neck, inside in the presence of six square bolts, graphite sealing gasket and upper stainless steel sleeve are pressed in erosion control set lower end, fill out
Material gland lower end is with pressing graphite packing.
Using above-mentioned technical proposal, the present invention has following technique effect：
1st, secondary sealing structure type instead of existing " O " type rubber seal using resistant to elevated temperatures first soft graphite, so as to
The use of the present invention is set not limited by temperature.The realization of secondary sealing structure type between valve interior wall and valve seat outer wall by assembling
Afterwards formed a filler pond, by the first soft graphite be put into this filler pond with sealing gland, first baffle, the first snap ring and
The roof pressing type structure of first screw composition is pressed abd fixed between valve body and valve seat to the first soft graphite, and can be made
Valve seat can move between the first soft graphite contact surface.
2nd, the present invention produces pretightning force top pressure valve seat using spring, substitutes the compressed caused pretightning force of " O " type rubber ring,
Outside not being influenced by temperature not only, and caused pretightning force is also more stable and lasting.
3rd, the present invention uses the second snap ring, second baffle, the second screw, the second push pedal, bullet on the right side of valve inner
Spring, it is spacing to the compaction degree between the moving range of valve seat, valve seat and flap and movement to be adjusted and fix, it is good so as to reach
Good primary seal effect.
4th, the present invention uses primary seal pair form：The sealing surface of flap excircle is using stainless steel surface layer in middle slightly drum
Sphere, the sealing surface of valve seat is circular conical surface, can so make the secondary linear seal form of primary seal, increase seal pressure, realize
Good metal sealing.
5th, the fixed form of screw is substituted using Snap ring structure, saves locus, will as a result of Snap ring structure
Not applicable structure has also obtained good expansion, is applied if welded type spiral valve of the present invention.
6th, the valve rod in the present invention, which rotates, drives flap to rotate the opening and closing for realizing valve, is adopted between valve rod and valve neck
Sealed, not only good sealing effect, and can be born higher with the second soft graphite, graphite sealing gasket, graphite packing
Temperature.
The spiral valve of the present invention is as a result of the first soft graphite and the second soft graphite as secondary sealing material so that
Valve heatproof improves, you can high temperature resistant, and because valve seat is the thrust movement by medium, push sealing surface to, with carrying for pressure
High sealing is closer, and sealing effectiveness is more preferable, thus can high temperature high voltage resistant.In addition, to give valve seat thrust same for design preloading spring
Shi Jinhang bit shift compensations, when medium flow direction flows from left to right, spring pre-tightening thrust and medium opposite direction, medium can be resisted
Active force, in addition with the size for pressing closer screw regulation resistance opposite force so that valve is two-way can to bear pressure, and obtains good
Good two way seal effect.Primary seal pair uses built-up welding stainless steel or Hardmetal materials layer, generally says metal to metal
Sealing, therefore subject of the present invention is referred to as " a kind of pretension compensation movable valve base high temperature high voltage resistant two-way hard seal spiral valve ".
Structural manufacturing process of the present invention is easily realized, is reasonable in design, good sealing effect, can easily be accommodated, convenient maintenance and replacement, is one
Kind of new structure, poly- one the advantages of as butterfly valve and ball valve, is a pioneering and creative novel valve.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the enlarged drawing at B in Fig. 1.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, a kind of pretension of the invention compensation movable valve base high temperature high voltage resistant two-way hard seal rotation
Ball valve, including valve body 1, valve rod 2, push rod 3 and flap 4, it is assumed that the center line of valve body 1 is set along left and right horizontal direction, and valve rod 2 is certainly
It is above lower to be radially projecting to along valve body 1 in valve body 1, rotate between valve rod 2 and valve body 1 and connected by seal assembly, push rod 3 is certainly
It is radially projecting on down along valve body 1 in valve body 1, push rod 3 is fixedly connected with valve body 1, and the lower end of valve body 1 is provided with for blocking top
The center line of the bottom 5 and gasket seal 6 of bar 3, valve rod 2 and push rod 3 is overlapped, and flap 4 is located in valve body 1, the lower end of valve rod 2 and valve
The left upper portion of valve 4 is fixedly connected, and the left lower of flap 4 is rotatably connected on push rod 3 by axle sleeve 7, the right side of flap 4 and valve body
Removable valve base sealing structure is provided between 1 right side circumferential inner wall；
Removable valve base sealing structure includes overall in the valve seat 8 of cirque structure, sealing gland 9, first baffle 10 and the
One snap ring 11, the circumferential inner wall of valve body 1 are provided with outer ring step at the neighbouring right side of valve rod 2, the excircle of valve seat 8 be provided with outside
The annular step that ring-shaped step coordinates, it is filled between the periphery of valve seat 8 and the inwall of valve body 1 on the right side of outer ring step
First soft graphite 12, sealing gland 9, the cylindrical of the snap ring 11 of first baffle 10 and first contact with the inwall of valve body 1, sealing pressure
The left side of lid 9 is provided with the annular pressing plate 13 for pressing the first soft graphite 12 to the left, and first baffle 10 is located at the right side of sealing gland 9,
The inwall of valve body 1 is provided with the first annular groove positioned at the right side of first baffle 10, and the first snap ring 11 is arranged in the first annular groove, the
One baffle plate 10 is threaded with the first screw 14 in left-right direction, and the first holding screw is equal along the circumferencial direction of first baffle 10
Even and be arranged at intervals several, the right side of left end top pressure sealing gland 9 of the first screw 14 makes the top pressure first of annular pressing plate 13
Soft graphite 12 realizes elevated-temperature seal；
The inwall of valve body 1 is provided with the adjustable primary seal drive mechanism coordinated with the right side top pressure of valve seat 8；It is close in adjustable master
Seal in the presence of drive mechanism, pass through the secondary crimping sealing of primary seal between the external peripheral surface of flap 4 and the left side internal circular surfaces of valve seat 8
Coordinate.
Adjustable primary seal drive mechanism includes overall in the push pedal 15 of cirque structure, spring 16, second baffle
17 and second snap ring 18, the right side of valve seat 8 along the circumferential direction offers several uniform and spaced mounting grooves, spring 16
It is arranged in mounting groove, the right-hand member of spring 16 stretches out mounting groove, and the left end of push pedal 15 coordinates with the right-hand member top pressure of spring 16, the right side of push pedal 15
Cylindrical to be contacted with the circumferential inner wall of valve body 1, the inwall of valve body 1 is provided with the second annular groove positioned at the right side of second baffle 17, the second card
Ring 18 is arranged in the second annular groove, and second baffle 17 is located at the right side of push pedal 15, and second baffle 17 is threadedly coupled in left-right direction
There is the second screw 19, the second holding screw uniformly and is arranged at intervals several along the circumferencial direction of second baffle 17, and second is tight
Determine the right side of left end top pressure push pedal 15 of screw 19, the right side outward flange of second baffle 17 contacts with the top pressure of the second snap ring 18.
Primary seal is secondary to include the external peripheral surface of flap 4 and the left side internal circular surfaces of valve seat 8 in left thick right thin cone knot
Structure, the conical structure surface overlaying of the external peripheral surface of flap 4 have the middle stainless steel surface layer 20 for slightly rousing spherical structure；In bullet
In the presence of spring 16, the stainless steel surface layer 20 on flap 4 crimps sealing with the left side internal circular surfaces of valve seat 8 and coordinated.
Seal assembly includes the valve neck 21 being structure as a whole with valve body 1, and valve rod 2 is extend into valve body 1 through valve neck 21, valve
The spacing ring 22 of the wall contacts of valve rod 2 is provided with body 1, is provided between the inwall of valve neck 21 and the outer wall of valve rod 2 positioned at spacing ring
The annular seal space of 22 tops, step groove is provided with annular seal space top on valve neck 21, is disposed with down from bottom to top in annular seal space
Stainless steel sleeve 23, the second soft graphite 24, upper stainless steel sleeve 25, graphite sealing gasket is disposed with from bottom to top at step groove
6th, erosion control set 26 and gland 27, erosion control covers is provided with graphite packing 28, gland 27 between 26 inwalls and the outer wall of valve rod 2
It is fixedly connected with erosion control set 26 by six square bolts 29 in parallel with valve rod 2 with valve neck 21, the effect of six square bolts 29 inside
Under, erosion control covers 26 lower ends and presses graphite sealing gasket 6 and upper stainless steel sleeve 25, and the lower end of gland 27 is with pressing graphite packing
28。
Valve rod 2 in the present invention, which rotates, drives flap 4 to rotate the opening and closing for realizing valve, spiral valve of the invention by
Secondary sealing material is used as in employing the first soft graphite 12 and the second soft graphite 24 so that valve heatproof improves, you can resistance to
High temperature, and because valve seat 8 is the thrust movement by medium, push sealing surface to, sealing effect closer with the raising sealing of pressure
Fruit is more preferable, thus can high temperature high voltage resistant.In addition, design preloading spring 16 gives the thrust of valve seat 8 while carries out bit shift compensation, when
When medium flow direction flows from left to right, the pretension thrust of spring 16 and medium opposite direction, the active force of medium can be resisted, is used in addition tight
The size of top screw regulation resistance opposite force so that valve is two-way can to bear pressure, and obtains good two way seal effect
Fruit.Primary seal pair uses built-up welding stainless steel or Hardmetal materials layer, generally says metal to metal seal, therefore the present invention
Theme be referred to as " a kind of pretension compensation movable valve base 8 high temperature high voltage resistant two-way hard seal spiral valve ".
Above example is only to illustrative and not limiting technical scheme, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that：Still the present invention can be modified or be waited
With replacing, any modification or partial replacement without departing from the spirit and scope of the present invention, it all should cover the power in the present invention
Among sharp claimed range.
Claims (4)
1. a kind of pretension compensates movable valve base high temperature high voltage resistant two-way hard seal spiral valve, including valve body, valve rod, push rod and valve
Valve, it is assumed that the center line of valve body is set along left and right horizontal direction, and valve rod is radially projecting in valve body along valve body from top to bottom, valve rod
Rotate between valve body and be connected by seal assembly, push rod is radially projecting in valve body along valve body from bottom to top, push rod and valve
Body is fixedly connected, and valve body lower end is provided with bottom and gasket seal for blocking push rod, and the center line of valve rod and push rod overlaps,
Flap is located in valve body, and valve rod lower end is fixedly connected with the interior square hole that flap left upper portion is set, and flap left lower passes through axle
Set is rotatably connected on push rod, it is characterised in that：On the right side of flap right side and valve body movable valve is provided between circumferential inner wall
Seat sealing structure；
Removable valve base sealing structure includes overall in the valve seat of cirque structure, sealing gland, first baffle and the first card
Ring, valve body circumferential inner wall are provided with outer ring step in place on the right side of neighbouring valve rod, and valve seat excircle is provided with and outer ring step
The annular step of cooperation, the first flexible stone being filled between valve seat periphery and valve interior wall on the right side of outer ring step
Ink, sealing gland, first baffle and the cylindrical of the first snap ring contact with valve interior wall, are provided with the left of sealing gland tight to the left
The annular pressing plate of the first soft graphite is pressed, first baffle is located on the right side of sealing gland, and valve interior wall is provided with positioned at first baffle
First annular groove on right side, the first snap ring are arranged in the first annular groove, and first baffle is threaded with first in left-right direction
Screw, the first holding screw uniformly and are arranged at intervals several along first baffle circumferencial direction, a left side for the first screw
The soft graphite of annular pressing plate top pressure first is set to realize elevated-temperature seal on the right side of the top pressure sealing gland of end；
Valve interior wall is provided with the adjustable primary seal drive mechanism coordinated with top pressure on the right side of valve seat；In adjustable primary seal
In the presence of drive mechanism, matched somebody with somebody on the left of flap external peripheral surface and valve seat between internal circular surfaces by the secondary crimping sealing of primary seal
Close.
2. a kind of pretension compensation movable valve base high temperature high voltage resistant two-way hard seal spiral valve according to claim 1, it is special
Sign is：Adjustable primary seal drive mechanism includes overall in the push pedal of cirque structure, spring, second baffle and second
Snap ring, valve seat right side along the circumferential direction offer several uniform and spaced mounting grooves, and spring is arranged on mounting groove
Interior, spring right-hand member stretches out mounting groove, and push pedal left end coordinates with spring right-hand member top pressure, cylindrical on the right side of push pedal to be connect with valve body circumferential inner wall
Touching, valve interior wall is provided with the second annular groove on the right side of second baffle, and the second snap ring is arranged in the second annular groove, and second
Baffle plate is located on the right side of push pedal, and second baffle is threaded with the second screw in left-right direction, and the second holding screw is along second
Baffle plate circumferencial direction is uniform and is arranged at intervals several, the left end top pressure push pedal right side of the second screw, and second baffle is right
End face outward flange contacts with the second snap ring top pressure.
3. a kind of pretension compensation movable valve base high temperature high voltage resistant two-way hard seal spiral valve according to claim 2, it is special
Sign is：The secondary flap external peripheral surface and valve seat left side internal circular surfaces of including of primary seal is in left thick right thin conical structure,
The conical structure surface overlaying of flap external peripheral surface has the middle stainless steel surface layer for slightly rousing spherical structure；In the work of spring
Under, the stainless steel surface layer on flap crimps sealing with internal circular surfaces on the left of valve seat and coordinated.
4. a kind of pretension compensation movable valve base high temperature high voltage resistant two-way hard seal spiral valve according to claim 1, it is special
Sign is：Seal assembly includes the valve neck being structure as a whole with valve body, and valve rod extend into valve body through valve neck, set on valve body
There are the spacing ring of valve rod wall contacts, the annular seal space being provided between valve neck inwall and valve rod outer wall above spacing ring, valve
Step groove is provided with neck on annular seal space top, is disposed with lower stainless steel sleeve, the second flexible stone in annular seal space from bottom to top
Black, upper stainless steel sleeve, graphite sealing gasket, erosion control set and gland, erosion control set are disposed with step groove from bottom to top
Be provided between inwall and valve rod outer wall graphite packing, gland and erosion control set by six square bolts in parallel with valve rod with
Valve neck is fixedly connected, and inside in the presence of six square bolts, graphite sealing gasket and upper stainless steel sleeve, filler are pressed in erosion control set lower end
Gland lower end is with pressing graphite packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493905.0A CN107420573B (en) | 2017-06-26 | 2017-06-26 | High-temperature-resistant high-pressure-resistant bidirectional hard sealing ball valve with pretension compensation movable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493905.0A CN107420573B (en) | 2017-06-26 | 2017-06-26 | High-temperature-resistant high-pressure-resistant bidirectional hard sealing ball valve with pretension compensation movable valve seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107420573A true CN107420573A (en) | 2017-12-01 |
| CN107420573B CN107420573B (en) | 2023-11-24 |
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ID=60427612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710493905.0A Active CN107420573B (en) | 2017-06-26 | 2017-06-26 | High-temperature-resistant high-pressure-resistant bidirectional hard sealing ball valve with pretension compensation movable valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420573B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223830A (en) * | 2018-02-11 | 2018-06-29 | 伍育毅 | A kind of omnipotent regulating valve |
| CN109027266A (en) * | 2018-08-20 | 2018-12-18 | 扬州龙鑫机械有限公司 | A kind of anti-leak fluid-control starting and stopping butterfly valve |
| CN110553056A (en) * | 2019-09-30 | 2019-12-10 | 青田超越阀门有限公司 | Spherical bidirectional high-performance rotary valve |
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| CN110553056A (en) * | 2019-09-30 | 2019-12-10 | 青田超越阀门有限公司 | Spherical bidirectional high-performance rotary valve |
| CN113154076A (en) * | 2021-04-01 | 2021-07-23 | 浙江上工阀门有限公司 | High-safety high-frequency novel high-pressure fixed ball valve with reliable sealing performance by quick opening and closing |
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Effective date of registration: 20231017 Address after: 475500 west section of Fuyuan Road, Weishi County, Kaifeng City, Henan Province Applicant after: KAIFENG RUIKE VALVE CO.,LTD. Address before: 475500 Kaifeng Ruike Valve Co., Ltd., Fuyuan Road, Industrial Cluster Zone, Weishi County, Kaifeng City, Henan Province Applicant before: Wang Ruiqing |
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