CN208041171U - Double leval jib elevated-temperature seal butterfly valve - Google Patents
Double leval jib elevated-temperature seal butterfly valve Download PDFInfo
- Publication number
- CN208041171U CN208041171U CN201820249295.XU CN201820249295U CN208041171U CN 208041171 U CN208041171 U CN 208041171U CN 201820249295 U CN201820249295 U CN 201820249295U CN 208041171 U CN208041171 U CN 208041171U
- Authority
- CN
- China
- Prior art keywords
- valve
- elevated
- valve plate
- leval jib
- double leval
- 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.)
- Active
Links
Abstract
A kind of double leval jib elevated-temperature seal butterfly valve provided by the utility model, the double leval jib elevated-temperature seal butterfly valve include：The valve body of annular, valve plate is equipped at the sealing end position of the valve body, the first end of fixed link is mounted on the valve interior wall, the second end of fixed link is rotatably connected to the valve shaft being longitudinally extended, the upper and lower ends of the valve shaft are each passed through the bearing block of the both sides above and below valve outer wall, the first end of valve plate seat is mounted on the inner face of the valve plate, the both ends of connecting rod are rotatably installed in the second end of the second end and valve plate seat of fixed link respectively, it is also equipped with and cranks arm on the valve plate seat, the both ends cranked arm rotate respectively to be connected on valve shaft and valve plate seat.The butterfly valve has the advantages that high leakproofness, high-wearing feature, service life is long.
Description
Technical field
The utility model is related to control valve for fluids technical fields, specifically a kind of double leval jib suitable for worst hot case
Elevated-temperature seal butterfly valve.
Background technology
The valve body of butterfly valve is typically the cylinder-like part for allowing fluid to flow through.It is characterized in that, valve plate is centered on valve shaft
It is rotated, valve plate outer circle is closer or far from sealing surface of seat set on valve body, to realize the keying function of valve.Butterfly
The structure type of valve develops into three-eccentric-butterfly-valve of today from centre type butterfly valve, single eccentric-butterfly-valve, double eccentric butterfly valve.Butterfly valve is inclined
The differentiation of core structure, the extruding phenomenon being intended between optimization valve plate and sealing ring.
In existing technology, middle line style underloading butterfly valve leakage class is I grade or II grade, it is difficult to meet high leakage grade
It is required that；Middle line style Fluorine-lined, butterfly valve are served as a contrast using materials such as PTFE, EP rubbers and nitrile rubbers in valve body or the table of valve plate
Face realizes the sealing of valve by the moderate finite deformation amount of soft material, is not suitable for worst hot case；Double eccentric, three-eccentric-butterfly-valves,
Up to the requirement compared with high sealing grade in conventional operating mode.But valve matches executing agency's apolegamy, and torque is excessive and valve body cost
Excessively high, on the other hand, in high temperature or containing under the mixture conditions such as dust, granule foreign, valve body sealing surface easily occurs that stuck, card is bad
Phenomena such as.
Therefore, the valve of which kind of structure is selected to meet above-mentioned worst hot case and have high sealing performance, is always
Perplex the great difficult problem of designing institute and terminal client.
Invention content
The purpose of the utility model is to overcome the deficiencies in the prior art, close to provide a kind of double leval jib high temperature
Sealing butterfly valve, the butterfly valve have the advantages that high leakproofness, high-wearing feature, service life is long.
According to technical solution provided by the utility model, a kind of double leval jib elevated-temperature seal butterfly valve, the double leval jib high temperature is close
Sealing butterfly valve includes：The valve body of annular, is equipped with valve plate at the sealing end position of the valve body, and the first end of fixed link is mounted on described
On valve interior wall, the second end of fixed link is rotatably connected to the valve shaft being longitudinally extended, and the upper and lower ends of the valve shaft are each passed through
The bearing block of both sides above and below valve outer wall, the first end of valve plate seat are mounted on the inner face of the valve plate, the both ends point of connecting rod
It is not rotatably installed in the second end of the second end and valve plate seat of fixed link, is also equipped with and cranks arm on the valve plate seat, it is described to crank arm
Both ends rotate be connected on valve shaft and valve plate seat respectively.
Further, the bearing block is equipped with self-aligning roller bearing, is set on the inner wall of the bearing block side of valve body
There is stuffing-box, is filled with filler in the stuffing-box, the filler coats the outer surface of the valve shaft.
Further, the filler includes stacked from bottom to up：Packing seat, graphite packing, filler spacer and graphite are filled out
Material, the graphite packing are equipped with gland, and the gland is equipped with hold-down grid described in hold-down grid and is fixed on valve
On body.
Further, the sealed end of the valve body forms a circle first step hole along valve interior wall, in first step hole
A circle second step hole is formed on valve seal end at outer rim, trim ring is installed in the second step hole, elastic metallic is close
The plane circle portion of seal ring is sealed between second step hole and trim ring, and the C-shaped circle portion of the surface elastic metal sealing ring is positioned at described
In first step hole.
Further, the hole bottom surface in the second step hole contacted with the plane circle portion of the surface elastic metal sealing ring and trim ring
Surface be toothed surface.
Further, the C-shaped circle portion of the surface elastic metal sealing ring includes C-shaped sealing ring and is located among C-shaped sealing ring
Helical spring.
Further, valve plate in the closure state, it is described crank arm it is parallel with connecting rod.
Double leval jib elevated-temperature seal butterfly valve provided by the utility model is can be seen that from the above, compared with prior art
Has following advantages：
First, in closing process, valve plate is converted into translational motion by flip-flop movement, and sealing surface of valve plate is close with elastic metallic
Seal ring relative translation contacts, until valve seal.During this, cut without any between sealing surface of valve plate and surface elastic metal sealing ring
Shear force, sealing surface of valve plate uniform force, sealing effect are good and steady in a long-term.
Second, the novel double leval jib elevated-temperature seal butterfly valve is not directly driven with main shaft, but utilize the original of link mechanism
Reason realizes the opening and closing of valve, and compared with prior art, the opening ways of valve plate have diversity, including small guide vane
It translates opening ways and rotates opening ways with big aperture, can realize the adjusting of the extra small flow of fluid and worst hot case can be prevented
Under valve plate and valve body between bite, the case where avoiding flow-rate adjustment failure occurs.Effectively valve plate is slowed down for elasticity
The impact force of metallic packing ring extends the service life of valve sealing face.
Third, valve is in the on state, the clearance distance between sealing surface of valve plate and surface elastic metal sealing ring is larger, no
It is also easy to produce buildup or impurity, valve plate will not the valve base sealing surface damage caused by remaining solid particle in closing process.
Fourth, the stuffing-box can effectively prevent particle in pipeline or impurity from entering in the axis hole of valve shaft, avoid
There is the case where bite in valve shaft, and can prevent pipeline high temperature heat radiation.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the elevational schematic of Fig. 1.
Fig. 3 is the A-A diagrammatic cross-sections of Fig. 2.
Fig. 4 is the enlarged drawing of part B in Fig. 2.
Fig. 5 is the enlarged drawing of C portion in Fig. 3.
Fig. 6 is that the valve plate of the utility model is in schematic diagram when small guide vane translates opening ways.
Fig. 7 is that the valve plate of the utility model is in schematic diagram when big aperture rotates opening ways.
1. valve body, 1a. first steps hole, 1b. second steps hole, 1c. sealed ends, 2. valve plates, 3. valve shafts, 4a. bearing blocks,
4b. self-aligning roller bearings, 5a. Packing seats, 5b. graphite packings, 5c. filler spacers, 5d. graphite packings, 5e. glands, 5f.
Hold-down grid, 6a. fixed links, 6b. crank arm, 6c. connecting rods, 6d. valve plate seats, 7. surface elastic metal sealing rings, 7a. plane circles portion,
7b.C shape circles portion, 8. bolts, 9. straight pins, 10. axis pins, 11. stuffing-boxes, 12. trim rings, 13. helical springs.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, below in conjunction with specific embodiment, and
With reference to attached drawing, the utility model is further described.Wherein identical parts are presented with like reference characters.It needs
Illustrate, word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to the side in attached drawing
To.The word "inner" used and "outside" refer respectively to the direction towards or away from geometric center of specific component.
As shown in Figure 1, Figure 2 and Figure 3, a kind of double leval jib elevated-temperature seal butterfly valve, the double leval jib elevated-temperature seal butterfly valve include：
The valve body 1 of annular, is equipped with valve plate 2 at the positions sealed end 1c of the valve body 1, and the first end of fixed link 6a is fixedly mounted on described
On 1 inner wall of valve body, the second end of fixed link 6a is rotatably connected to the valve shaft 3 being longitudinally extended, the upper and lower ends difference of the valve shaft 3
It is placed through the bearing block 4a of 1 outer wall of valve body or more both sides, the first end of valve plate seat 6d is fixedly mounted on the valve by bolt 8
The inner face of plate 2, the both ends of connecting rod 6c respectively by axis pin 10 be rotatably installed in fixed link 6a second end and valve plate seat 6d
Two ends are also equipped with the 6b that cranks arm on the valve plate seat 6d, and the both ends of the 6b that cranks arm pass through straight pin 9 respectively and axis pin 10 rotates
It is connected on valve shaft 3 and valve plate seat 6d.The rotary motion of valve shaft 3 is converted into the overturning and translation of valve plate 2 by the 6b and connecting rod 6c that cranks arm
Movement, the final keying for realizing valve.It is understood that the novel double leval jib elevated-temperature seal butterfly valve is not driven directly with main shaft
It is dynamic, but the opening and closing of the principle realization valve of link mechanism are utilized, and compared with prior art, the unlatching of valve plate 2
Mode has diversity, including small guide vane translation opening ways rotate opening ways with big aperture, can realize the extra small stream of fluid
Amount is sent out the case where adjusting and can prevent the bite between the valve plate 2 under worst hot case and valve body 1, avoid flow-rate adjustment failure
It is raw.
As shown in Figure 1 and Figure 4, the bearing block 4a is equipped with self-aligning roller bearing 4b, close to the bearing block 4a mono- of valve body 1
The inner wall of side is equipped with stuffing-box 11, is filled with filler in the stuffing-box 11, the filler coats the appearance of the valve shaft 3
Face.The externally positioned type bearing component construction can prevent the bite of bearing and valve shaft 3, and reduce the torque of valve.
As shown in figure 4, the filler includes stacked from bottom to up：Packing seat 5a, graphite packing 5b, filler spacer 5c and
Equipped with gland 5e, the gland 5e is described equipped with hold-down grid 5f by graphite packing 5d, the graphite packing 5d
Hold-down grid 5f is fixed on valve body 1.Multi-disc graphite packing 5b can effectively prevent particle in pipeline or impurity from entering valve
In the axis hole of axis 3, valve shaft 3 is avoided the case where bite occur, and pipeline high temperature heat radiation can be prevented.
As shown in Figure 1 and Figure 5, the sealed end 1c of the valve body 1 forms a circle first step hole 1a along 1 inner wall of valve body,
It is formed on 1 sealed end 1c of valve body at the 1a outer rims of first step hole in circle second step a hole 1b, the second step hole 1b
Trim ring 12 is installed, the plane circle portion 7a of surface elastic metal sealing ring 7 is sealed between second step hole 1b and trim ring 12, the bullet
The C-shaped circle portion 7b of property metallic packing ring 7 is located in the first step hole 1a and keeps hanging.The surface elastic metal sealing ring 7
It is stamped to form using cold rolled sheet,
As shown in figure 5, with the hole bottom surface of the plane circle portion 7a of the surface elastic metal sealing ring 7 second step hole 1b contacted
Surface with trim ring 12 is toothed surface.The toothed surface is embedded in surface elastic metal sealing ring planar ends 7a, so that it is guaranteed that leakproofness,
Prevent fluid media (medium) from leakage.
As shown in figure 5, the C-shaped circle portion 7b of the surface elastic metal sealing ring 7 include C-shaped sealing ring and be located at C-shaped sealing ring
Intermediate helical spring 13.The helical spring 13 can enhance the elasticity of surface elastic metal sealing ring 7 so that valve plate 2 and metal
It can be bonded to form sealing between sealing ring 7.
As shown in figure 3, valve plate 2 in the closure state, the 6b that cranks arm is parallel with connecting rod 6c.
The operation principle of the utility model is as follows：
As shown in Figure 6 and Figure 7, the acute angle that 6b and valve plate seat 6d is formed by of cranking arm is α, connecting rod 6c and valve plate seat 6d
The acute angle being formed by is β, and during valve opening, when 3 rotation angle of valve shaft is at 0 ° ~ 15 °, valve plate 2 is in small and opens
Degree translates opening ways, at this time α=β, valve plate seat 6d states in a vertical shape, and valve plate 2 is put down under the drive of crank arm 6b and connecting rod 6c at this time
It moves ground and is detached from surface elastic metal sealing ring 7（As shown in Figure 6）；When 3 rotation angle of valve shaft is at 15 ° ~ 90 °, valve plate 2 is in big aperture
Opening ways are rotated, at this time α > β, valve plate seat 6d generates the deflection of angle, and valve plate 2 makees flip-flop movement（As shown in Figure 7）Until stream
It opens completely in road.Conversely, in valve closing process, for 3 rotation angle of valve shaft at 0 ° ~ 75 °, valve plate 2 first makees flip-flop movement, valve shaft
3 rotation angles valve plate 2 at 75 ° ~ 90 ° is bonded after making translational motion with surface elastic metal sealing ring 7, to realize the close of valve
Envelope.
Those of ordinary skills in the art should understand that：The foregoing is merely specific embodiment of the utility model
, it is not intended to limit the utility model, all any modifications within the purport of the utility model, made, change equivalent replacement
Into etc., it should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of double leval jib elevated-temperature seal butterfly valve, which is characterized in that the double leval jib elevated-temperature seal butterfly valve includes：The valve body of annular
（1）, the valve body（1）Sealed end（1c）Valve plate is equipped at position（2）, fixed link（6a）First end be mounted on the valve body
（1）On inner wall, fixed link（6a）Second end be rotatably connected to the valve shaft being longitudinally extended（3）, the valve shaft（3）Upper and lower ends
It is each passed through and is located at valve body（1）The bearing block of both sides above and below outer wall（4a）, valve plate seat（6d）First end be mounted on the valve plate
（2）Inner face, connecting rod（6c）Both ends be rotatably installed in fixed link respectively（6a）Second end and valve plate seat（6d）Second end,
The valve plate seat（6d）On be also equipped with and crank arm（6b）, described to crank arm（6b）Both ends rotate be connected in valve shaft respectively（3）And valve plate
Seat（6d）On.
2. double leval jib elevated-temperature seal butterfly valve as described in claim 1, which is characterized in that the bearing block（4a）It is equipped with aligning
Roller bearing（4b）, close to valve body（1）Bearing block（4a）The inner wall of side is equipped with stuffing-box（11）, the stuffing-box（11）
In be filled with filler, the filler coats the valve shaft（3）Outer surface.
3. double leval jib elevated-temperature seal butterfly valve as claimed in claim 2, which is characterized in that the filler includes being stacked from bottom to up
's：Packing seat（5a）, graphite packing（5b）, filler spacer（5c）And graphite packing（5d）, the graphite packing（5d）It is equipped with
Gland（5e）, the gland（5e）It is equipped with hold-down grid（5f）, the hold-down grid（5f）It is fixed on valve body（1）
On.
4. double leval jib elevated-temperature seal butterfly valve as described in claim 1, which is characterized in that the valve body（1）Sealed end（1c）
Along valve body（1）Inner wall forms a circle first step hole（1a）, in first step hole（1a）Valve body at outer rim（1）Sealed end
（1c）It is upper to form a circle second step hole（1b）, the second step hole（1b）In trim ring is installed（12）, elastic metallic sealing
Ring（7）Plane circle portion（7a）It is sealed in second step hole（1b）With trim ring（12）Between, the surface elastic metal sealing ring（7）'s
C-shaped circle portion（7b）Positioned at the first step hole（1a）In.
5. double leval jib elevated-temperature seal butterfly valve as claimed in claim 4, which is characterized in that with the surface elastic metal sealing ring（7）
Plane circle portion（7a）The second step hole of contact（1b）Hole bottom surface and trim ring（12）Surface be toothed surface.
6. double leval jib elevated-temperature seal butterfly valve as claimed in claim 4, which is characterized in that the surface elastic metal sealing ring（7）C
Shape circle portion（7b）Helical spring including C-shaped sealing ring and among C-shaped sealing ring（13）.
7. double leval jib elevated-temperature seal butterfly valve as described in claim 1, which is characterized in that in valve plate（2）In the closure state,
It is described to crank arm（6b）With connecting rod（6c）It is parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249295.XU CN208041171U (en) | 2018-02-12 | 2018-02-12 | Double leval jib elevated-temperature seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249295.XU CN208041171U (en) | 2018-02-12 | 2018-02-12 | Double leval jib elevated-temperature seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041171U true CN208041171U (en) | 2018-11-02 |
Family
ID=63952962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820249295.XU Active CN208041171U (en) | 2018-02-12 | 2018-02-12 | Double leval jib elevated-temperature seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208041171U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150659A (en) * | 2018-02-12 | 2018-06-12 | 无锡智能自控工程股份有限公司 | Double leval jib elevated-temperature seal butterfly valve |
| CN109519551A (en) * | 2018-12-24 | 2019-03-26 | 大唐三门峡发电有限责任公司 | A kind of refractory seals butterfly isolation door gear |
| CN115654156A (en) * | 2022-11-14 | 2023-01-31 | 大连船用阀门有限公司 | Bidirectional-sealing low-torque triple-eccentric ventilation butterfly valve |
-
2018
- 2018-02-12 CN CN201820249295.XU patent/CN208041171U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150659A (en) * | 2018-02-12 | 2018-06-12 | 无锡智能自控工程股份有限公司 | Double leval jib elevated-temperature seal butterfly valve |
| CN109519551A (en) * | 2018-12-24 | 2019-03-26 | 大唐三门峡发电有限责任公司 | A kind of refractory seals butterfly isolation door gear |
| CN115654156A (en) * | 2022-11-14 | 2023-01-31 | 大连船用阀门有限公司 | Bidirectional-sealing low-torque triple-eccentric ventilation butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208041171U (en) | Double leval jib elevated-temperature seal butterfly valve | |
| CN105626870B (en) | It is a kind of can two way seal rotary seal structure | |
| CN201028043Y (en) | Wear-resistant metal hard sealing ball valve | |
| CN108150659A (en) | Double leval jib elevated-temperature seal butterfly valve | |
| CN202674339U (en) | Butt-weld bidirectional pressing hard seal butterfly valve | |
| CN207131902U (en) | Upper dress formula full-bore LNG soft seal zero leakage two-way valves | |
| CN202946708U (en) | Self-compensating electric ball valve based on bellows structure | |
| CN212536693U (en) | Double-seal three-eccentric hard seal butterfly valve of water system | |
| CN203322297U (en) | Elastic self-sealing butterfly valve | |
| CN102943892B (en) | Large-medium-caliber hard sealing long-service-life ball valve | |
| CN2451831Y (en) | Metal sealing buttetfly valve | |
| CN202884100U (en) | Large-middle caliber rigidity seal ball valve with long service life | |
| CN206093035U (en) | Unsteady ball valve of facial make -up elastic valve seat | |
| CN106402413A (en) | Large-diameter low-load double-eccentric center butterfly valve | |
| CN206093005U (en) | Intermittent type style hard seal zero friction butterfly valve | |
| CN204755916U (en) | Exoskeletal rubber oil seal of lips mouth J type | |
| CN201053509Y (en) | High pressure dual-seal butterfly valve | |
| CN205446795U (en) | Ball valve structure that metal is sealed firmly | |
| CN108533771A (en) | A kind of eccentric-butterfly-valve structure being applicable in valve seat soft and hard seal | |
| CN2451840Y (en) | Eccentric two-way sealing ball valve | |
| CN105840857A (en) | Rotary four-eccentricity ball valve | |
| CN104235392A (en) | Elastic self-sealing butterfly valve | |
| CN210034444U (en) | Novel flue gas valve | |
| CN216279504U (en) | Soft seal fixed ball valve | |
| CN219734228U (en) | Special bellows stop valve of chlorine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |