CN209557683U - Bi-direction zero-leakage three eccentric metal sealed butterfly valve - Google Patents
Bi-direction zero-leakage three eccentric metal sealed butterfly valve Download PDFInfo
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- CN209557683U CN209557683U CN201920062384.8U CN201920062384U CN209557683U CN 209557683 U CN209557683 U CN 209557683U CN 201920062384 U CN201920062384 U CN 201920062384U CN 209557683 U CN209557683 U CN 209557683U
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- butterfly
- butterfly plate
- plate
- valve
- sealing ring
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Abstract
The utility model provides bi-direction zero-leakage three eccentric metal sealed butterfly valve, it is related to butterfly valve field, including the inside of valve body and butterfly plate, valve body offers cavity, the butterfly plate is arranged in the cavity, the side of the butterfly plate is provided with sealing ring, and the valve seat connection on the outside and valve body of sealing ring, the side of the butterfly plate and side for being located at sealing ring is connect by screw with pressure plate loop, for sealing ring between pressure plate loop and butterfly plate, the internal sleeve of the butterfly plate is equipped with valve shaft.In the utility model, by using the innovationization design to butterfly plate and sealing ring and pressure plate loop, first sealing ring is placed on the sealing surface of seat of valve body, and it is adjusted to optimum position, shaft end is contour up and down for measurement, removes sealing ring, butterfly plate is placed on the positioning tool, and increase suitable compensation rate, butterfly plate and sealing ring and pressure plate loop are compressed, upper and lower axle end position leaks when mainly solving the problems, such as reversely to seal.
Description
Technical field
The utility model relates to butterfly valve field more particularly to bi-direction zero-leakage three eccentric metal sealed butterfly valves.
Background technique
Butterfly valve realizes the component of pipe-line system on-off and flow control as a kind of, petroleum, chemical industry, metallurgy,
It obtains applying extremely widely in many fields such as water power.In known butterfly valve technology, seal form mostly uses sealing
Structure, sealing material are rubber, polytetrafluoroethylene (PTFE) etc..Due to the limitation of structure feature, it is not suitable with high temperature resistant, high pressure and corrosion resistant
The industries such as erosion, wear-resistant.
The more advanced butterfly valve of existing one kind is three eccentric metal hard sealed butterfly damper, and valve body and valve seat are disjunctor component, valve
Seat sealing surfaces layer heap welds heatproof, corrosion resistant alloy material.The soft stacked sealing ring of multilayer is fixed on valve plate, this butterfly valve and tradition
Butterfly valve, which is compared, has high temperature resistant, operate it is light, opening and closing without friction, when closing with the torque of transmission mechanism increase it is close to compensate
Envelope, the advantages of improving the sealing performance of butterfly valve and prolong the service life.
Two-way three eccentric metal sealed butterfly valve is widely used in the industries such as petroleum, petrochemical industry, power generation, low temperature, paper pulp and papermaking, can
Quickly to cut off or adjust use, however traditional three eccentric metal sealed butterfly valve is there is also some shortcomings, traditional
The valve body of two-way three-eccentric-butterfly-valve and butterfly plate component be with boring, the reversed poor sealing performance of this method mesohigh valve, secondly as
Traditional sealing pair track is ellipse, then valve body, butterfly plate, sealing ring, the blank of pressure plate loop or semi-finished product machining allowance are big, processing
Low efficiency, finally, common sealing surface processing tool is to cause the end of butterfly plate using butterfly plate back side boss outer circle and plane positioning
It overhangs to the inner cavity of valve body longer, valve rod bending deformation is larger, and two way seal performance is difficult to ensure.
Utility model content
The purpose of this utility model is to provide bi-direction zero-leakage three eccentric metal sealed butterfly valves, are asked with solving above-mentioned technology
Topic.
The utility model using following technical scheme in order to solve the above technical problems, realized: bi-direction zero-leakage three eccentricity
Metallic seal butterfly valve, including valve body and butterfly plate, it is characterised in that:
The inside of the valve body offers cavity, and the butterfly plate is arranged in the cavity, and the side of the butterfly plate is arranged
Have sealing ring, and on the outside and valve body of sealing ring valve seat connection, the side of the butterfly plate and be located at sealing ring side pass through
Screw is connect with pressure plate loop, and sealing ring is between pressure plate loop and butterfly plate, and the internal sleeve of the butterfly plate is equipped with valve shaft, and valve shaft passes through
It is through at the axle sleeve of valve inner, the side of the butterfly plate is provided with straight pin, and the side of the valve body is provided with bracket, and bracket
On be provided with gland, the side of the gland is provided with filler, sets at the link position of the gland and valve body
It is equipped with Packing seat, the side of the butterfly plate is fixed on positioning tool by adjusting screw, and the other side of butterfly plate passes through tension
Screw is fixed with positioning seat, and the positioning seat is arranged in grade bar.
Preferably, the shape of the sealing surface of the valve seat is ellipse.The sealing surface of valve seat and the outer circle of sealing ring are
Ellipsoidal structure can reduce its machining allowance its object is to enable to valve seat and sealing ring when processing, improve
Production efficiency.
Preferably, the shape of the sealing ring plan structure sectional view is that internal-and external diameter is eccentric, and its outer circle is ellipse knot
Structure.The outer circle and sealing surface of seat of sealing ring are ellipsoidal structure, enable to it to be bonded more accurate.
Preferably, the plan structure sectional view shape of the butterfly plate and pressure plate loop is internal-and external diameter bias, and butterfly plate uses
Truss-like arc plate slab construction.
Preferably, the straight pin can drivening piece butterfly plate rotated on the cavity of valve inner.Straight pin drive butterfly plate into
Row rotation, so that the metallic seal butterfly valve plays the role of valve blocking, the sealing pair of the metallic seal butterfly valve
For three eccentricity structure.
Preferably, multi-level stainless steel and nonmetallic composite sandwich structural can be used in the butterfly plate and pressure plate loop, can also be
All-metal sealing structure enables to the stability of the butterfly plate and pressure plate loop higher using the structure of stainless steel or all-metal.
Preferably, two kinds of forms of section axis or whole axis can be used in the valve shaft.
The beneficial effects of the utility model are:
In the utility model, firstly, designed by using the innovationization to butterfly plate and sealing ring and pressure plate loop, it first will sealing
Circle is placed on the sealing surface of seat of valve body, and is adjusted to optimum position, and shaft end is contour up and down for measurement, sealing ring is removed, by butterfly
Plate is placed on the positioning tool, and increases suitable compensation rate, compresses butterfly plate and sealing ring and pressure plate loop, is mainly solved reversed
The problem of upper and lower axle end position leaks when sealing, secondly, by using to valve body moulding, butterfly plate casting, sealing ring and pressure plate loop
Blank shape before processing sealing ring is eccentric structure, is mainly used for solving that whole circumference machining allowance difference is biggish to ask
Topic, to make sealing surface processing efficiency greatly improve, finally, by butterfly plate sealing ring processing tool unique design, using interior
Outer diameter is eccentric, and its inner circle is circular configuration, and purpose improves reversed sealing performance, not only installs, positions, is easy to process, and
Improve production efficiency.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model valve body；
Fig. 2 is the side sectional view of the utility model valve body；
Fig. 3 is the schematic diagram of internal structure of the utility model valve body；
Fig. 4 is the overhead sectional view of the utility model sealing ring；
Fig. 5 is the side sectional view of the utility model sealing ring；
Fig. 6 is the overhead sectional view of the utility model butterfly plate；
Fig. 7 is the side sectional view of the utility model butterfly plate；
Fig. 8 is the structural schematic diagram of the utility model metallic seal butterfly valve；
Fig. 9 is the side view of the utility model metallic seal butterfly valve.
Appended drawing reference: 1, valve body；2, valve seat；3, sealing ring；4, pressure plate loop；5, butterfly plate；6, screw；7, valve shaft；8, axle sleeve；
9, straight pin；10, filler；11, gland；12, bracket；13, Packing seat；14, positioning tool；15, adjusting screw；16, it draws
Tight screw；17, positioning seat；18, grade bar.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
The utility model is further described in face with specific embodiments and the drawings, but following embodiments are only the excellent of the utility model
Embodiment is selected, and not all.Based on the implementation example in the implementation mode, those skilled in the art are not making creative work
Under the premise of obtained other embodiments, belong to protection scope of the present invention.
Specific embodiment of the utility model is described with reference to the accompanying drawing.
Embodiment 1
As shown in figs 1-9, bi-direction zero-leakage three eccentric metal sealed butterfly valve, including valve body 1 and butterfly plate 5, the inside of valve body 1
Cavity is offered, butterfly plate 5 is arranged in cavity, and the side of butterfly plate 5 is provided with sealing ring 3, and the outside of sealing ring 3 and valve body 1
On valve seat 2 connect, the side of the butterfly plate 5 and side for being located at sealing ring 3 is connect by screw 6 with pressure plate loop 4, sealing ring 3
Between pressure plate loop 4 and butterfly plate 5, the internal sleeve of butterfly plate 5 is equipped with valve shaft 7, and valve shaft 7 is through the axle sleeve 8 inside valve body 1,
The side of butterfly plate 5 is provided with straight pin 9, and the side of valve body 1 is provided with bracket 12, and gland 11 is provided on bracket 12,
The side of gland 11 is provided with filler 10, is provided with Packing seat 13, butterfly at the link position of the gland 11 and valve body 1
The side of plate 5 is fixed on positioning tool 14 by adjusting screw 15, and the other side of butterfly plate 5 passes through stretching screw 16 and positioning
Seat 17 is fixed, and positioning seat 17 is arranged in grade bar 18.
In use, valve shaft 7 is first carried out compression sealing by gland 11 and filler 10, so that it is guaranteed that valve shaft 7 and valve
Axle sleeve 8 inside body 1 is sealed, and then sealing ring 3 is mounted on butterfly plate 5, and passes through pressure plate loop 4 and 6 pairs of screw sealings
Circle 3 is compressed, to reach the sealing between pressure plate loop 4 and butterfly plate 5, valve shaft 7 can run through the hole inside butterfly plate 5 at this time, so
It drives butterfly plate 5 to rotate by straight pin 9 afterwards, and rotation is carried out to valve shaft 7 to drive the metal close by exterior operator
Sealing butterfly valve opens and closes, if the metallic seal butterfly valve leaks from the outer circle of sealing ring 3, is needed at this time by screw 6 and pressure
Plate circle 4 unclamp, then to sealing ring 3 carry out readjust position and reach with the complete gluing, sealing of the sealing surface of valve seat 2, finally
Pressure plate loop 4 is installed, and screw 6 is tightened, two way seal can be realized.
Embodiment 2
As shown in figs 1-9, bi-direction zero-leakage three eccentric metal sealed butterfly valve, including valve body 1 and butterfly plate 5, the inside of valve body 1
Cavity is offered, butterfly plate 5 is arranged in cavity, and the side of butterfly plate 5 is provided with sealing ring 3, and the outside of sealing ring 3 and valve body 1
On valve seat 2 connect, the side of the butterfly plate 5 and side for being located at sealing ring 3 is connect by screw 6 with pressure plate loop 4, sealing ring 3
Between pressure plate loop 4 and butterfly plate 5, the internal sleeve of butterfly plate 5 is equipped with valve shaft 7, and valve shaft 7 is through the axle sleeve 8 inside valve body 1,
The side of butterfly plate 5 is provided with straight pin 9, and the side of valve body 1 is provided with bracket 12, and gland 11 is provided on bracket 12,
The side of gland 11 is provided with filler 10, is provided with Packing seat 13, butterfly at the link position of the gland 11 and valve body 1
The side of plate 5 is fixed on positioning tool 14 by adjusting screw 15, and the other side of butterfly plate 5 passes through stretching screw 16 and positioning
Seat 17 is fixed, and positioning seat 17 is arranged in grade bar 18.
The shape of the sealing surface of valve seat 2 is ellipse.The shape of 3 plan structure sectional view of sealing ring is that internal-and external diameter is eccentric,
And its outer circle is ellipsoidal structure.The plan structure sectional view shape of butterfly plate 5 and pressure plate loop 4 is internal-and external diameter bias, and butterfly plate 5
Using truss-like arc plate slab construction.Straight pin 9 can drivening piece butterfly plate 5 rotated on the cavity inside valve body 1.Butterfly plate 5 and pressure
Multi-level stainless steel and nonmetallic composite sandwich structural can be used in plate circle 4, can also be all-metal sealing structure.Valve shaft 7 can be used
Two kinds of forms of section axis or whole axis.
When being installed to butterfly plate 5, sealing ring 3 is placed in the valve seat 2 on valve body 1 first, measures valve body 1
The height H1 and H2 at both ends, keep H1 and H2 equal, optimal seal position dimension H1 are then found out, then by adjusting screw 15
14 horizontal line of positioning tool is adjusted to the distance H of 1 end face of valve body, making its H=H1+ △, △ is bore hole compensation rate, after position determines
Butterfly plate 5 is placed, aligning circumference position accurately install to butterfly plate 5 and fix, when carrying out processing positioning to butterfly plate 5,
It needs for butterfly plate 5 to be placed into positioning seat 17, and is fixed by stretching screw 16, and be fixed on grade bar 18 and added
Work positioning, so that the processing positioning of butterfly plate 5 is unique, it is convenient to clamp, and dismounting speed is fast.
Embodiment 3
As shown in figs 1-9, bi-direction zero-leakage three eccentric metal sealed butterfly valve, including valve body 1 and butterfly plate 5, the inside of valve body 1
Cavity is offered, butterfly plate 5 is arranged in cavity, and the side of butterfly plate 5 is provided with sealing ring 3, and the outside of sealing ring 3 and valve body 1
On valve seat 2 connect, the side of the butterfly plate 5 and side for being located at sealing ring 3 is connect by screw 6 with pressure plate loop 4, sealing ring 3
Between pressure plate loop 4 and butterfly plate 5, the internal sleeve of butterfly plate 5 is equipped with valve shaft 7, and valve shaft 7 is through the axle sleeve 8 inside valve body 1,
The side of butterfly plate 5 is provided with straight pin 9, and the side of valve body 1 is provided with bracket 12, and gland 11 is provided on bracket 12,
The side of gland 11 is provided with filler 10, is provided with Packing seat 13, butterfly at the link position of the gland 11 and valve body 1
The side of plate 5 is fixed on positioning tool 14 by adjusting screw 15, and the other side of butterfly plate 5 passes through stretching screw 16 and positioning
Seat 17 is fixed, and positioning seat 17 is arranged in grade bar 18.
The shape of the sealing surface of valve seat 2 is ellipse.The shape of 3 plan structure sectional view of sealing ring is that internal-and external diameter is eccentric,
And its outer circle is ellipsoidal structure.The plan structure sectional view shape of butterfly plate 5 and pressure plate loop 4 is internal-and external diameter bias, and butterfly plate 5
Using truss-like arc plate slab construction.Straight pin 9 can drivening piece butterfly plate 5 rotated on the cavity inside valve body 1.Butterfly plate 5 and pressure
Multi-level stainless steel and nonmetallic composite sandwich structural can be used in plate circle 4, can also be all-metal sealing structure.Valve shaft 7 can be used
Two kinds of forms of section axis or whole axis.
The top cross-sectional view of sealing ring 3 is internal-and external diameter eccentric structure, and its outer circle is ellipsoidal structure, the i.e. length of c and d
It is unequal, and center of circle deflected length be e, the inner circle of 1 sealing surface of valve body be internal-and external diameter eccentric structure, butterfly plate 5 blank outer circle be
The length of internal-and external diameter eccentric structure, i.e. a and b is unequal, and center of circle deflected length is also e, and the outer fenestra of the blank of pressure plate loop 4 is interior
Outer diameter eccentric structure, be arranged in this way the purpose is to reduce machining allowance.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model
Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical
In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (7)
1. bi-direction zero-leakage three eccentric metal sealed butterfly valve, including valve body (1) and butterfly plate (5), it is characterised in that: the valve body
(1) inside offers cavity, and the butterfly plate (5) is arranged in the cavity, and the side of the butterfly plate (5) is provided with sealing ring
(3), and the outside of sealing ring (3) is connect with the valve seat (2) on valve body (1), the side of the butterfly plate (5) and be located at sealing ring (3)
Side connect with pressure plate loop (4) by screw (6), sealing ring (3) is located between pressure plate loop (4) and butterfly plate (5), the butterfly plate
(5) internal sleeve is equipped with valve shaft (7), and the axle sleeve (8) that valve shaft (7) is internal through valve body (1), the side of the butterfly plate (5)
It is provided with straight pin (9), the side of the valve body (1) is provided with bracket (12), and is provided with gland on bracket (12)
(11), the side of the gland (11) is provided with filler (10), at the link position of the gland (11) and valve body (1)
It is provided with Packing seat (13), the side of the butterfly plate (5) is fixed on positioning tool (14) by adjusting screw (15), and butterfly plate
(5) the other side is fixed by stretching screw (16) and positioning seat (17), and the positioning seat (17) is arranged in grade bar (18).
2. bi-direction zero-leakage three eccentric metal sealed butterfly valve according to claim 1, it is characterised in that: the valve seat (2)
Sealing surface shape be ellipse.
3. bi-direction zero-leakage three eccentric metal sealed butterfly valve according to claim 1, it is characterised in that: the sealing ring
(3) shape of plan structure sectional view is that internal-and external diameter is eccentric, and its outer circle is ellipsoidal structure.
4. bi-direction zero-leakage three eccentric metal sealed butterfly valve according to claim 1, it is characterised in that: the butterfly plate (5)
Plan structure sectional view shape with pressure plate loop (4) is internal-and external diameter bias, and butterfly plate (5) uses truss-like arc plate plate knot
Structure.
5. bi-direction zero-leakage three eccentric metal sealed butterfly valve according to claim 1, it is characterised in that: the straight pin
(9) can drivening piece butterfly plate (5) rotated on the internal cavity of valve body (1).
6. bi-direction zero-leakage three eccentric metal sealed butterfly valve according to claim 1, it is characterised in that: the butterfly plate (5)
Multi-level stainless steel and nonmetallic composite sandwich structural can be used with pressure plate loop (4), can also be all-metal sealing structure.
7. bi-direction zero-leakage three eccentric metal sealed butterfly valve according to claim 1, it is characterised in that: the valve shaft (7)
Two kinds of forms of section axis or whole axis can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920062384.8U CN209557683U (en) | 2019-01-15 | 2019-01-15 | Bi-direction zero-leakage three eccentric metal sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920062384.8U CN209557683U (en) | 2019-01-15 | 2019-01-15 | Bi-direction zero-leakage three eccentric metal sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557683U true CN209557683U (en) | 2019-10-29 |
Family
ID=68307105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920062384.8U Expired - Fee Related CN209557683U (en) | 2019-01-15 | 2019-01-15 | Bi-direction zero-leakage three eccentric metal sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209557683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618334A (en) * | 2021-07-28 | 2021-11-09 | 山东亿佰通机械股份有限公司 | Machining method of butt-clamped butterfly valve |
-
2019
- 2019-01-15 CN CN201920062384.8U patent/CN209557683U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618334A (en) * | 2021-07-28 | 2021-11-09 | 山东亿佰通机械股份有限公司 | Machining method of butt-clamped butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191029 Termination date: 20200115 |