CN106996461B - The double eccentric flange butterfly valves of Fluorine-lined - Google Patents
The double eccentric flange butterfly valves of Fluorine-lined Download PDFInfo
- Publication number
- CN106996461B CN106996461B CN201710421891.1A CN201710421891A CN106996461B CN 106996461 B CN106996461 B CN 106996461B CN 201710421891 A CN201710421891 A CN 201710421891A CN 106996461 B CN106996461 B CN 106996461B
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- Prior art keywords
- fluorine
- lined
- sealing
- lined layer
- layer
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- 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.)
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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
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
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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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
A kind of double eccentric flange butterfly valves of Fluorine-lined.Existing butterfly valve is solved without double eccentric fluorine lining butterfly valves, and common fluorine lining butterfly valve seals insecure problem.It includes valve seat, butterfly plate and valve body, the valve seat is equipped with the first Fluorine-lined layer, the second Fluorine-lined layer is arranged with outside the butterfly plate, the inner wall of the valve body is equipped with third Fluorine-lined layer, the first Fluorine-lined layer includes the first limiting section, first inclined plane part and the first sealing, first connecting portion is equipped between first inclined plane part and the first sealing, the second Fluorine-lined layer is equipped with the second inclined plane part and second connecting portion, the first Fluorine-lined layer, second Fluorine-lined layer and packing seal element match to form cavity, the third Fluorine-lined layer is equipped with the second sealing compatible with the first sealing, first sealing and the second sealing is L-shaped.The advantages that present invention also has structure simple, easy to assembly, reliable in action, long service life.
Description
Technical field
The present invention relates to a kind of valves, and in particular to a kind of double eccentric flange butterfly valves of Fluorine-lined.
Background technique
Butterfly valve is called flap valve, is a kind of simple regulating valve of structure, can be used for the switch control of low pressure pipeline medium.Butterfly
Valve refers to that closure member flap or butterfly plate are disk, a kind of valve of open and close is reached around valve shaft rotation, valve can be used for
Control the various types fluids such as empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radiating medium
Flowing, cutting and throttling action are mainly played on pipeline.It is rotten in conveyings such as weight chemical industry, large chemical fertilizer, petroleum and petrochemical industry, smelting iron and steels
The occasion of corrosion fluid media (medium), metal valve is because will receive corrosion, it is clear that is not available, therefore in this kind of occasion, usually needs
Use corrosion-resistant plastic lining valve.Existing Butterfly valve with liner is made due to corrosion barrier sealing at body base
Product hermeticity can be poor, and existing common practice is increase by one sealing shroud or sealing element, but the sealing element due to
Angle and reasons in structure are set it is similarly hereinafter not high with radial pressure so that axially refer to the axial direction of butterfly valve shaft so that production
Product sealing is unreliable, and life test can only be to 10,000 times or so, and product will have leakage, and product service life is short.Double bias
Butterfly valve since valve rod axle center both deviateed butterfly plate center, also offsets from body central so that difficulty is high when lining, and sealed after Fluorine-lined
Unreliable easy leakage.
Summary of the invention
To solve the no double eccentric fluorine lining butterfly valves of existing butterfly valve in background technique, and common fluorine lining butterfly valve sealing can not
By the problem of, the present invention provides a kind of Fluorine-lined double eccentric flange butterfly valves.
The technical scheme is that a kind of double eccentric flange butterfly valves of Fluorine-lined, including valve seat, butterfly plate and valve body, it is described
Valve body is equipped with medium channel, and the butterfly plate is equipped with valve rod, the center of the center deviation butterfly plate of the valve rod and valve body
Center, is equipped with packing seal element between the valve rod and valve body, the valve seat is equipped with the first Fluorine-lined layer, the butterfly plate
It is arranged with the second Fluorine-lined layer outside, the inner wall of the valve body is equipped with third Fluorine-lined layer, and the first Fluorine-lined layer includes L-shaped
First limiting section, the first inclined plane part for mutually being sealed with butterfly plate and the first sealing for mutually being sealed with valve body, it is described
First connecting portion is equipped between first inclined plane part and the first sealing, the second Fluorine-lined layer is equipped with and the first inclined plane part phase
Adaptation the second inclined plane part and extend to the second connecting portion on valve rod, the first Fluorine-lined layer, the second Fluorine-lined layer and filler
Sealing element matches to form cavity, and the third Fluorine-lined layer is equipped with the second sealing compatible with the first sealing, institute
The first sealing and the second sealing stated are L-shaped.
As an improvement of the present invention, the third Fluorine-lined layer is equipped with third interconnecting piece, the packing seal element
Outer wall fit with the third interconnecting piece on third Fluorine-lined layer, on the inner wall of the packing seal element and the second Fluorine-lined layer
Second connecting portion fits.
As a further improvement of the present invention, the valve body is equipped with notch, and the third interconnecting piece is caught in valve body
Notch in.
As a further improvement of the present invention, the third Fluorine-lined layer is equipped with third inclined plane part, and the filler is close
Sealing is equipped in insertion cavity and fits airtight and watertight padding seal head with third inclined plane part.
As a further improvement of the present invention, the packing seal element is equipped with the wave sealing bent back and forth.
As a further improvement of the present invention, the wave sealing respectively with the second Fluorine-lined layer, third Fluorine-lined layer phase
Cooperatively form gap.
As a further improvement of the present invention, axle sleeve is arranged on the valve rod, one end of the axle sleeve and filler are close
Sealing is connected, and the other end is connected with pressing plate, pressing sleeve.
As a further improvement of the present invention, the axle sleeve is equipped with gib head press section, on the packing seal element
Equipped with pothook compatible with gib head press section.
As a further improvement of the present invention, the area of first inclined plane part is greater than the area of the second inclined plane part.
As a further improvement of the present invention, the valve rod includes upper valve rod and lower valve rod, the upper valve rod, lower valve
Bar is connected with butterfly plate.
The invention has the advantages that valve seat, butterfly plate and valve body and medium are led to respectively by the first, second and third Fluorine-lined layer
Road separates, and dielectric damages valve body is avoided, while passing through the specific structure of the first, second and third Fluorine-lined layer, so that valve seat is close with butterfly plate
Envelope is reliable, and the movement of butterfly plate is convenient in the setting of cavity, reduces frictional force, and have small amount of leakage in time, the setting of cavity can also be held
Medium is set, dielectric leakage is avoided, the first sealing and the second sealing are L-shaped, so that the first Fluorine-lined layer and third Fluorine-lined layer
Sealing surface at right angles seals, and sealing effect is good, avoids dielectric leakage, and each Fluorine-lined layer cooperates so that product sealing effect
It is good, contact surface sealed reliable.The advantages that present invention also has structure simple, easy to assembly, reliable in action, long service life.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the embodiment of the present invention.
Attached drawing 2 is the half section structure diagram of attached drawing 1.
Attached drawing 3 is the structural representation enlarged drawing in attached drawing 2 at I.
In figure, 1, valve seat；2, butterfly plate；3, valve body；31, notch；4, medium channel；5, valve rod；51, axle sleeve；511, gib head
Press section；52, pressing plate；53, pressing sleeve；54, upper valve rod；55, lower valve rod；6, packing seal element；61, packing seal head；62, wave
Sealing；63, gap；64, pothook；7, the first Fluorine-lined layer；71, the first limiting section；72, the first inclined plane part；73, the first connection
Portion；74, the first sealing；75, cavity；8, the second Fluorine-lined layer；81, the second inclined plane part；82, second connecting portion；9, third Fluorine-lined
Layer；91, the second sealing；92, third interconnecting piece；93, third inclined plane part.
Specific embodiment
Embodiments of the present invention is further illustrated with reference to the accompanying drawing:
As shown in Fig. 1 combination Fig. 2,3, a kind of double eccentric flange butterfly valves of Fluorine-lined, including valve seat 1, butterfly plate 2 and valve body 3, it is described
Valve body 3 be equipped with medium channel 4, the butterfly plate 2 be equipped with valve rod 5, the center of the center deviation butterfly plate 2 of the valve rod 5
With the center of valve body 3, packing seal element 6 is equipped between the valve rod 5 and valve body 3, the valve seat 1 is equipped with the first Fluorine-lined
Layer 7, is arranged with the second Fluorine-lined layer 8 outside the butterfly plate 2, and the inner wall of the valve body 3 is equipped with third Fluorine-lined layer 9, and described the
One Fluorine-lined layer 7 includes the first L-shaped limiting section 71, the first inclined plane part 72 for sealing with 2 phase of butterfly plate and is used for and valve body 3
Mutually the first sealing 73 of sealing is equipped with first connecting portion 74, institute between first inclined plane part 72 and the first sealing 73
The the second Fluorine-lined layer 8 stated be equipped with second inclined plane part 81 compatible with the first inclined plane part 72 and extend on valve rod 5 second
Interconnecting piece 82, the first Fluorine-lined layer 7, the second Fluorine-lined layer 8 and packing seal element 6 match to form cavity 75, and described
Three Fluorine-lined layers 9 are equipped with second sealing 91 compatible with the first sealing 73, first sealing 73 and second
Sealing 91 is L-shaped.The present invention is respectively separated valve seat, butterfly plate and valve body and medium channel by the first, second and third Fluorine-lined layer
It opens, avoids dielectric damages valve body, while passing through the specific structure of the first, second and third Fluorine-lined layer, so that valve seat and butterfly plate sealing can
It leans on, Fluorine-lined processing, sealed reliable is carried out especially in double eccentric butterfly valve, while considerably increasing the service life of product, cavity
Movement convenient for butterfly plate is set, reduces frictional force, and have small amount of leakage in time, the setting of cavity can also accommodate medium, avoid being situated between
Matter leakage, the first sealing and the second sealing are L-shaped, so that the first Fluorine-lined layer and third Fluorine-lined layer sealing surface are at right angles close
Envelope, sealing effect is good, avoids dielectric leakage, and each Fluorine-lined layer cooperates so that product sealing effect is good, and contact surface sealing can
It leans on.The advantages that present invention also has structure simple, easy to assembly, reliable in action, long service life.
The third Fluorine-lined layer 9 is equipped with third interconnecting piece 92, the outer wall and third Fluorine-lined layer of the packing seal element 6
Third interconnecting piece 92 on 9 fits, the second connecting portion 82 on the inner wall of the packing seal element 6 and the second Fluorine-lined layer 8
It fits.By the combination of third interconnecting piece and packing seal element, avoids medium from leaking into from medium channel and damage valve on valve body
Body.By the combination of second connecting portion and packing seal element, medium is avoided to leak into damaging valve stem on valve rod from medium channel.
The valve body 3 is equipped with notch 31, and the third interconnecting piece 92 is caught in the notch 31 of valve body 3.Notch
Setting avoids third Fluorine-lined layer displacement in the course of work from influencing so that third interconnecting piece and third Fluorine-lined layer and valve body are fixed reliable
Product hermeticity energy.
The third Fluorine-lined layer 9 is equipped with third inclined plane part 93, and the packing seal element 6 is equipped with insertion cavity 75
It is interior and fit airtight and watertight padding seal head 61 with third inclined plane part 93.In the packing seal head insertion cavity of packing seal element simultaneously
It matches to form cone sealing with third inclined plane part, sealed reliable, and since the specific structure of packing seal element can serve as a contrast third
Fluorine layer provides pressure always, so that sealing surface fits closely, sealed reliable.
The packing seal element 6 is equipped with the wave sealing 62 bent back and forth.Specifically, wave sealing
Portion 62 matches with the second Fluorine-lined layer 8, third Fluorine-lined layer 9 respectively and to form gap 63.The setting of wave sealing is so that filler is close
Sealing has certain elasticity, and when so that packing seal element being pressed, inside and outside wall can cooperatively form with valve rod, valve body close respectively
It seals relatively reliable, since the setting of wave sealing can form multiple sealing surfaces, is sealed jointly to form multiple sealing rings
Effect, the setting in gap can accommodate certain leaking medium, while can provide for packing seal element flexible in axial direction
Surplus.
Axle sleeve 51 is arranged on the valve rod 5, one end of the axle sleeve 51 is connected with packing seal element 6, the other end
It is connected with pressing plate 52, pressing sleeve 53.Specifically, the axle sleeve 51 is equipped with gib head press section 511, the packing seal
Part 6 is equipped with pothook 64 compatible with gib head press section 511.Such structure can reliably compress packing seal element, and
It avoids packing seal element from shifting, influences life of product and sealing performance.
The area of first inclined plane part 72 is greater than the area of the second inclined plane part 81.It can be with when in this way butterfly plate being sealed
It is completely reliable to realize sealing with valve seat cooperation, and response is fast, can quickly carry out the switch of butterfly plate.
The valve rod 5 include upper valve rod 54 and lower valve rod 55, the upper valve rod 54, lower valve rod 55 with butterfly plate 2
Dynamic connection.Such structure makes product structure simple, easy to process, easy to assembly.
Every technical staff's notice: of the invention although the present invention is described according to above-mentioned specific embodiment
Invention thought be not limited in the invention, any repacking with inventive concept will all be included in this patent protection of the patent right
In range.
Claims (9)
1. a kind of double eccentric flange butterfly valves of Fluorine-lined, including valve seat (1), butterfly plate (2) and valve body (3), it is characterised in that: the valve
Body (3) is equipped with medium channel (4), and the butterfly plate (2) is equipped with valve rod (5), the center deviation butterfly plate of the valve rod (5)
(2) center at center and valve body (3) is equipped with packing seal element (6) between the valve rod (5) and valve body (3), the valve
Seat (1) is equipped with the first Fluorine-lined layer (7), and the second Fluorine-lined layer (8), the inner wall of the valve body (3) are arranged with outside the butterfly plate (2)
It is equipped with third Fluorine-lined layer (9), the first Fluorine-lined layer (7) includes L-shaped the first limiting section (71), is used for and butterfly plate
(2) the first inclined plane part (72) mutually sealed and the first sealing (73) for mutually being sealed with valve body (3), first inclined-plane
First connecting portion (74) are equipped between portion (72) and the first sealing (73), the second Fluorine-lined layer (8) is equipped with and first
Compatible second inclined plane part (81) of inclined plane part (72) and the second connecting portion (82) on valve rod (5) is extended to, described first
Fluorine-lined layer (7), the second Fluorine-lined layer (8) and packing seal element (6) match to be formed cavity (75), the third Fluorine-lined layer (9)
Compatible second sealing (91), first sealing (73) and the second sealing are equipped with the first sealing (73)
Portion (91) is L-shaped, and the third Fluorine-lined layer (9) is equipped with third interconnecting piece (92), the outer wall of the packing seal element (6)
It fits with the third interconnecting piece (92) on third Fluorine-lined layer (9), the inner wall of the packing seal element (6) and the second Fluorine-lined layer
(8) second connecting portion (82) on fits.
2. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that the valve body (3) is equipped with notch
(31), the third interconnecting piece (92) is caught in the notch (31) of valve body (3).
3. the double eccentric flange butterfly valves of Fluorine-lined according to claim 2, it is characterised in that set on the third Fluorine-lined layer (9)
Have third inclined plane part (93), the packing seal element (6) be equipped with insertion cavity (75) in and with third inclined plane part (93) phase
The packing seal head (61) of gluing, sealing.
4. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that set on the packing seal element (6)
There is the wave sealing (62) bent back and forth.
5. the double eccentric flange butterfly valves of Fluorine-lined according to claim 4, it is characterised in that the wave sealing (62) point
Do not match to form gap (63) with the second Fluorine-lined layer (8), third Fluorine-lined layer (9).
6. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that be arranged with axis on the valve rod (5)
It covers (51), one end of the axle sleeve (51) is connected with packing seal element (6), and the other end is connected with pressing plate (52), pressing sleeve (53)
It connects.
7. the double eccentric flange butterfly valves of Fluorine-lined according to claim 6, it is characterised in that the axle sleeve (51) is equipped with hook
Head press section (511), the packing seal element (6) are equipped with gib head press section (511) compatible pothook (64).
8. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that first inclined plane part (72)
Area is greater than the area of the second inclined plane part (81).
9. the double eccentric flange butterfly valves of Fluorine-lined according to claim 1, it is characterised in that the valve rod (5) includes upper valve rod
(54) it is connected with butterfly plate (2) with lower valve rod (55), the upper valve rod (54), lower valve rod (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421891.1A CN106996461B (en) | 2017-06-07 | 2017-06-07 | The double eccentric flange butterfly valves of Fluorine-lined |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421891.1A CN106996461B (en) | 2017-06-07 | 2017-06-07 | The double eccentric flange butterfly valves of Fluorine-lined |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106996461A CN106996461A (en) | 2017-08-01 |
| CN106996461B true CN106996461B (en) | 2019-05-17 |
Family
ID=59436468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710421891.1A Active CN106996461B (en) | 2017-06-07 | 2017-06-07 | The double eccentric flange butterfly valves of Fluorine-lined |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106996461B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2315365Y (en) * | 1997-12-05 | 1999-04-21 | 温州市防腐设备厂 | Double eccentric butterfly valve lined with fluoroplastic |
| CN2331798Y (en) * | 1998-05-07 | 1999-08-04 | 葛克克 | Butterfly valve |
| CN203532776U (en) * | 2013-10-11 | 2014-04-09 | 温州市利尔多阀门有限公司 | Fluorine lining butterfly valve |
| CN203686174U (en) * | 2014-01-13 | 2014-07-02 | 浙江有氟密阀门有限公司 | Novel fluorine-lined butterfly valve |
| CN205155334U (en) * | 2015-12-04 | 2016-04-13 | 上海安阀流体控制有限公司 | Corrode operating mode with lining fluorine butterfly valve level four seal structure |
-
2017
- 2017-06-07 CN CN201710421891.1A patent/CN106996461B/en active Active
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| Publication number | Publication date |
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| CN106996461A (en) | 2017-08-01 |
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