CN209294457U - A kind of valve rod axial direction seal ball-valve - Google Patents
A kind of valve rod axial direction seal ball-valve Download PDFInfo
- Publication number
- CN209294457U CN209294457U CN201822241407.XU CN201822241407U CN209294457U CN 209294457 U CN209294457 U CN 209294457U CN 201822241407 U CN201822241407 U CN 201822241407U CN 209294457 U CN209294457 U CN 209294457U
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- valve
- corrosion layer
- valve rod
- sealing
- corrosion
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- 238000005260 corrosion Methods 0.000 claims abstract description 105
- 238000007789 sealing Methods 0.000 claims abstract description 83
- 238000005452 bending Methods 0.000 claims description 23
- 210000004907 gland Anatomy 0.000 claims description 18
- 230000007797 corrosion Effects 0.000 claims description 16
- 230000003628 erosive effect Effects 0.000 claims 1
- 239000000945 filler Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A kind of valve rod axial direction seal ball-valve.It solves and seals unreliable, easy the problem of leaking at existing ball-valve valve rod.It includes sphere, the valve rod being connected with sphere, valve deck and valve body, the valve body is equipped with medium channel, the sphere is set in medium channel, the sphere is equipped with the first anti-corrosion layer, first anti-corrosion layer is lining on sphere and extends on valve rod, the valve body is equipped with the second anti-corrosion layer, third anti-corrosion layer is equipped between the valve deck and valve body, the third anti-corrosion layer and the first anti-corrosion layer fit to form primary sealing area and primary sealing area on its cross section in inverted L-type, the third anti-corrosion layer and the second anti-corrosion layer fits to form secondary sealing area, the valve deck is equipped with so that the fitting of third anti-corrosion layer compresses the hold-down mechanism of the first anti-corrosion layer.The advantages that the utility model also has structure simple, easy to assembly, sealed reliable, long service life.
Description
Technical field
The utility model relates to a kind of ball valves, and in particular to a kind of valve rod axial direction seal ball-valve.
Background technique
Ball valve (ball valve) comes out in the 1950s, with the rapid development of science and technology, production technology and
Product structure is continuously improved, and in the 40 short years, has been rapidly developed as a kind of main valve class.In western industrial
Flourishing country, the use of ball valve is continuous year by year to be risen.In China, ball valve is widely used in petroleum refining, length
The industries such as defeated pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel occupy very important ground in national economy
Position.It has the movement being rotated by 90 °, and faucet body is sphere, has circular through hole or channel to pass through its axis.Ball valve is in pipeline
It is mainly used to make the flow direction for cutting off, distributing and changing medium, it only needs the rotation with the operation and very little being rotated by 90 °
Torque can close tightly.
Existing Fluorine-lined ball valve generally includes valve body, valve rod, valve ball and valve deck, usually at valve body, valve rod, valve ball into
Row Fluorine-lined, so that product corrosion resistance with higher, the existing improvement carried out to ball valve, are mostly at valve seat and valve ball
Compensation is sealed, so that medium channel avoids leaking, and to still using packing seal at valve rod (referring to attached drawing 1).
Filler is generallyd use at the valve rod of existing ball valve and valve deck to be sealed, though anti-corrosion layer is also provided at valve deck, but due to
Structure limitation, unreliable with the sealing at valve rod, only simple fitting is easy leakage.In the actual production process, due to filling out
Material is usually to carry out compressing by gland being sealed, then spread to realize reliable sealing by the characteristic of itself, therefore
Be affected by temperature it is big, in real work winter and summer be affected by temperature caused by low precision there are two centimetre, therefore installing
When it is high to the skill requirement of staff, and be easy to appear during continuous work that abrasion is excessive and leakage.Filler and valve rod
Place is sealed into radial seal (filler is defined as radial seal since radial diffusion is bonded with valve rod), during installation to valve
The concentricity requirement of bar is very high, slightly deviation, can make filler abrasion severe in operation, although can be arranged at filler
Gland, but staff's real time monitoring and manual compression filler are needed, it is time-consuming and laborious, and service life is short, opening and closing number is only
It can reach up to a hundred times.When especially in atmospheric control, bolt-center that aerodynamic center, pneumatic driving moving part are driven,
Club center, ball centre are required to keep concentricity, so that product structure is complicated, installation trouble, are easy, and it is unreliable to seal,
It is easy leakage.
Utility model content
To solve the problem of to seal unreliable easy leakage in background technique at existing ball-valve valve rod, the utility model is mentioned
For a kind of valve rod axial direction seal ball-valve.
The technical solution of the utility model is: a kind of valve rod axial direction seal ball-valve, including sphere, the valve being connected with sphere
Bar, valve deck and valve body, the valve body are equipped with medium channel, and the sphere is set in medium channel, the sphere tool
Have and blocks the second position that medium channel is connected in the first position of flow of media and when opening in medium channel, institute when closing
The sphere stated is equipped with the first anti-corrosion layer, and first anti-corrosion layer is lining on sphere and extends on valve rod, described
Valve body is equipped with the second anti-corrosion layer, and third anti-corrosion layer is equipped between the valve deck and valve body, and the third is corrosion-resistant
Layer fit with the first anti-corrosion layer to form primary sealing area and primary sealing area on its cross section in inverted L-type, it is described
Third anti-corrosion layer and the second anti-corrosion layer fit to form secondary sealing area, the valve deck be equipped with so that third corrosion resistant
Lose the hold-down mechanism that layer fitting compresses the first anti-corrosion layer.
As a kind of improvement of the utility model, the valve rod is equipped with valve rod shoulder block, first anti-corrosion layer
Valve rod bending part including valve rod vertical portion and at valve rod shoulder block, the third anti-corrosion layer are equipped with and valve rod bending
The first sealing that portion fits and the second sealing that valve rod vertical portion fits, first sealing and valve rod are rolled over
Turn of bilge, the second sealing match to form the primary sealing area with valve rod vertical portion.
The valve body is equipped with valve body shoulder block as a further improvement of the utility model, and described second is corrosion-resistant
Layer is equipped with valve body bending part at valve body shoulder block, and the third anti-corrosion layer is equipped with the third to fit with valve body bending part
Sealing, the third sealing and valve body bending part complement each other to form secondary sealing area.
The valve rod vertical portion and valve rod bending part are arranged in a mutually vertical manner as a further improvement of the utility model,.
The valve deck is equipped with step as a further improvement of the utility model, the valve deck by its end face,
Step makes third anti-corrosion layer fit respectively with the second anti-corrosion layer, the first anti-corrosion layer.
The hold-down mechanism includes gland, sealing element and locking nut, institute as a further improvement of the utility model,
It is outer and fit respectively with valve rod, third anti-corrosion layer that the sealing element stated is sheathed on valve rod, the locking nut and gland it
Between be equipped with elastic component, the elastic component has sealing element and makes sealing element resistance to valve rod, third respectively by gland compression
The movement tendency that corrosion layer fits.
The gland is sheathed on the outside of sealing element as a further improvement of the utility model, is set on the gland
There is the inclined-plane to fit with sealing element.
The sealing element is set to the top of third anti-corrosion layer as a further improvement of the utility model, described
Sealing element is equipped with O-ring.
The elastic component is disc spring as a further improvement of the utility model,.
The valve body is equipped with corrosion-resistant valve seat, the corrosion resistance valve as a further improvement of the utility model,
Seat complements each other to form cavity with the first anti-corrosion layer, the second anti-corrosion layer, third anti-corrosion layer.
The utility model has the beneficial effects that anti-corrosion layer is provided with, so that the component that medium channel is likely to contact
It is wrapped up, metalwork is avoided to be corroded, so that product can be suitably used for acting under the operating condition of corrosive media, so that product is adapted to
Range is wide, and sealed reliable.Third anti-corrosion layer fits with the first anti-corrosion layer, the second anti-corrosion layer respectively and realizes product
Sealing, sealed reliable use axial seal especially at valve rod, and seal for face, sealed reliable, and be not necessary to guaranty that valve rod
Concentricity, so that processing precision of products requirement is low, product is easy for installation, long service life.The utility model also has structure simple
It is single, it is easy to assembly, the advantages that sealed reliable, long service life.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of existing ball valve.
Attached drawing 2 is the structural schematic diagram of the utility model embodiment.
Attached drawing 3 is the structure enlargement diagram in attached drawing 2 at I.
In figure, 1, sphere；2, valve rod；21, valve rod shoulder block；3, valve deck；31, step；4, valve body；41, medium channel；42,
Valve body shoulder block；43, corrosion-resistant valve seat；44, cavity；5, the first anti-corrosion layer；51, valve rod vertical portion；52, valve rod bending part；6,
Second anti-corrosion layer；61, valve body bending part；7, third anti-corrosion layer；71, the first sealing；72, the second sealing；73, third
Sealing；8, primary sealing area；9, secondary sealing area；10, hold-down mechanism；11, gland；111, inclined-plane；12, sealing element；13, it locks
Tight nut；14, elastic component；15, O-ring.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
As shown in connection with fig. 3 by Fig. 2, a kind of valve rod axial direction seal ball-valve, including sphere 1, the valve rod being connected with sphere 12,
Valve deck 3 and valve body 4, the valve body 4 are equipped with medium channel 41, and the sphere 1 is set in medium channel 41, the ball
Body 1 has block the first position of flow of media and when opening in medium channel 41 to make that medium channel 41 is connected when closing the
Two positions, the sphere 1 are equipped with the first anti-corrosion layer 5, and first anti-corrosion layer 5 is lining on sphere 1 and extends to
On valve rod 2, the valve body 4 is equipped with the second anti-corrosion layer 6, and third anti-corrosion layer is equipped between the valve deck 3 and valve body 4
7, the third anti-corrosion layer 7 and the first anti-corrosion layer 5, which fit, to form primary sealing area 8 and primary sealing area 8 is in its cross
It is in inverted L-type on section, the third anti-corrosion layer 7 and the second anti-corrosion layer 6 fit to form secondary sealing area 9, institute
The valve deck 3 stated is equipped with so that the fitting of third anti-corrosion layer 7 compresses the hold-down mechanism 10 of the first anti-corrosion layer 5.The utility model
Beneficial effect be to be provided with anti-corrosion layer so that the component that medium channel is likely to contact is wrapped up to avoid metalwork
It is corroded, so that product can be suitably used for acting under the operating condition of corrosive media, so that product range of fit is wide, and sealed reliable.
Third anti-corrosion layer fits with the first anti-corrosion layer, the second anti-corrosion layer realize the sealing of product respectively, sealed reliable, especially
Be at valve rod using axial seal (axial seal refer to third anti-corrosion layer by axial force compress the first anti-corrosion layer, this
When the direction of power that is subject to of primary sealing area it is axially parallel with valve rod, be defined as axial seal), and sealed for face, sealed reliable,
And it is not necessary to guaranty that valve rod concentricity, so that processing precision of products requirement is low, product is easy for installation, long service life.This is practical
It is novel also to have structure simple, it is easy to assembly, the advantages that sealed reliable, long service life.
The valve rod 2 is equipped with valve rod shoulder block 21, and first anti-corrosion layer 5 includes valve rod vertical portion 51 and is set to
Valve rod bending part 52 at valve rod shoulder block 21, the third anti-corrosion layer 7 are equipped with the to fit with valve rod bending part 52
One sealing 71, the second sealing 72 to fit with valve rod vertical portion 51, first sealing 71 and valve rod bending part
52, the second sealing 72 matches to form the primary sealing area 8 with valve rod vertical portion 51.It is such to be arranged so that medium is
Make to write at valve seat, it is still desirable to need by the inner wall of the second sealing, the first sealing and third anti-corrosion layer logical
Crossing the contact of three levels could leak from valve rod, so that product sealed reliable, especially receives axial force at the first sealing
Compression is reliably bonded with valve rod bending part, so that product sealed reliable.
The valve body 4 is equipped with valve body shoulder block 42, and second anti-corrosion layer 6 is equipped with valve body at valve body shoulder block 42
Bending part 61, the third anti-corrosion layer 7 are equipped with the third sealing 73 that fits with valve body bending part 61, and described the
Three sealings 73 and valve body bending part 61 complement each other to form secondary sealing area 9.Such structure makes valve deck and valve seal
Reliably.
The valve rod vertical portion 51 and valve rod bending part 52 is arranged in a mutually vertical manner.Oil duct when leakage can be made to increase in this way
Long, that is, needing to destroy contact surface can just leak, so that product sealed reliable.
The valve deck 3 is equipped with step 31, and the valve deck 3 makes third anti-corrosion layer 7 by its end face, step 31
It fits respectively with the second anti-corrosion layer 6, the first anti-corrosion layer 5.The setting of valve deck end face and step, to third anti-corrosion layer
First, second and third sealing is squeezed, so that each sealing surface is not only simple fitting, and is stress fitting, is made
Obtaining product hermeticity can be good.
The hold-down mechanism 10 includes gland 11, sealing element 12 and locking nut 13, and the sealing element 12 is sheathed on
Valve rod 2 is outer and fits respectively with valve rod 2, third anti-corrosion layer 7, and elasticity is equipped between the locking nut 13 and gland 11
Part 14, the elastic component 14, which has, to be compressed sealing element 12 by gland 11 and makes sealing element 12 resistance to valve rod 2, third respectively
The movement tendency that corrosion layer 7 fits.Such structure can provide pressure in real time for third anti-corrosion layer, so that sealing surface
In stress gluing, sealing state, so that product sealed reliable.Specifically, the elastic component 14 is disc spring.
The gland 11 is sheathed on 12 outside of sealing element, and the gland 11 is oblique equipped with fitting with sealing element 12
Face 111.Specifically, the sealing element 12 is set to the top of third anti-corrosion layer 7, and the sealing element 12 is equipped with O-shaped
Circle 15.The utility model uses slope driving sealing element, so that sealing element receives skew force, the oblique force resolution direction
On be respectively used to compress third anti-corrosion layer the first sealing make primary sealing area sealed reliable and sealing element be bonded
Valve rod realizes further valve stem seal, avoids leaking from valve rod, enables product hermeticity good.
The valve body 4 is equipped with corrosion-resistant valve seat 43, the corrosion-resistant valve seat 43 and the first anti-corrosion layer 5, second
Anti-corrosion layer 6, third anti-corrosion layer 7 complement each other to form cavity 44.The setting of cavity can accommodate the particle in medium, avoid
Hypertonia causes detonation in the prooving of valve seat and system.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.In addition, in the description of the present invention, unless otherwise indicated, " multiples' " contains
Justice is two or more.
Every technical staff's notice: although the utility model is described according to above-mentioned specific embodiment, this
The utility model thought of utility model is not limited to that utility model, and any repacking with the utility model thought all will
It is included in this patent scope of patent protection.
Claims (10)
1. a kind of valve rod axial direction seal ball-valve, including sphere (1), the valve rod (2) being connected with sphere (1), valve deck (3) and valve body
(4), it is characterised in that: the valve body (4) is equipped with medium channel (41), and the sphere (1) is set to medium channel (41)
Interior, the sphere (1) to be situated between when having the first position and the opening that block medium channel (41) interior flow of media when closing
The second position of matter channel (41) conducting, the sphere (1) are equipped with the first anti-corrosion layer (5), and described first is corrosion-resistant
Layer (5) is lining on sphere (1) and extends on valve rod (2), and the valve body (4) is equipped with the second anti-corrosion layer (6), described
Third anti-corrosion layer (7) are equipped between valve deck (3) and valve body (4), the third anti-corrosion layer (7) and the first anti-corrosion layer
(5) fit to form primary sealing area (8) and primary sealing area (8) on its cross section in inverted L-type, the third is resistance to
Corrosion layer (7) and the second anti-corrosion layer (6) fit to be formed secondary sealing area (9), and the valve deck (3) is equipped with so that third
Anti-corrosion layer (7) fitting compresses the hold-down mechanism (10) of the first anti-corrosion layer (5).
2. a kind of valve rod axial direction seal ball-valve according to claim 1, it is characterised in that the valve rod (2) is equipped with valve
Pole spacing shoulder (21), first anti-corrosion layer (5) include valve rod vertical portion (51) and the valve rod at valve rod shoulder block (21)
Bending part (52), the third anti-corrosion layer (7) be equipped with fit with valve rod bending part (52) the first sealing (71),
The second sealing (72) to fit with valve rod vertical portion (51), first sealing (71) and valve rod bending part (52),
Second sealing (72) matches to form the primary sealing area (8) with valve rod vertical portion (51).
3. a kind of valve rod axial direction seal ball-valve according to claim 2, it is characterised in that the valve body (4) is equipped with valve
Body shoulder block (42), second anti-corrosion layer (6) are equipped with valve body bending part (61) at valve body shoulder block (42), the third
Anti-corrosion layer (7) is equipped with the third sealing (73) to fit with valve body bending part (61), the third sealing (73)
Secondary sealing area (9) are complemented each other to form with valve body bending part (61).
4. a kind of valve rod axial direction seal ball-valve according to claim 2, it is characterised in that the valve rod vertical portion (51)
It is arranged in a mutually vertical manner with valve rod bending part (52).
5. a kind of valve rod axial direction seal ball-valve according to claim 3, it is characterised in that the valve deck (3) is equipped with platform
Rank (31), the valve deck (3) by its end face, step (31) make third anti-corrosion layer (7) respectively with the second anti-corrosion layer
(6), the first anti-corrosion layer (5) fits.
6. a kind of valve rod axial direction seal ball-valve according to claim 1, it is characterised in that hold-down mechanism (10) packet
Include gland (11), sealing element (12) and locking nut (13), the sealing element (12) be sheathed on valve rod (2) outside and respectively with valve
Bar (2), third anti-corrosion layer (7) fit, and are equipped with elastic component (14) between the locking nut (13) and gland (11), institute
The elastic component (14) stated have compress sealing element (12) by gland (11) and make sealing element (12) respectively with valve rod (2), the
The movement tendency that three anti-corrosion layers (7) fit.
7. a kind of valve rod axial direction seal ball-valve according to claim 6, it is characterised in that the gland (11) is sheathed on
On the outside of sealing element (12), the gland (11) is equipped with the inclined-plane (111) to fit with sealing element (12).
8. a kind of valve rod axial direction seal ball-valve according to claim 6, it is characterised in that the sealing element (12) is set to
The top of third anti-corrosion layer (7), the sealing element (12) are equipped with O-ring (15).
9. a kind of valve rod axial direction seal ball-valve according to claim 6, it is characterised in that the elastic component (14) is dish
Spring.
10. a kind of valve rod axial direction seal ball-valve according to claim 1, it is characterised in that the valve body (4) is equipped with
Corrosion-resistant valve seat (43), the corrosion-resistant valve seat (43) and the first anti-corrosion layer (5), the second anti-corrosion layer (6), third corrosion resistant
Erosion layer (7) complements each other to form cavity (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822241407.XU CN209294457U (en) | 2018-12-29 | 2018-12-29 | A kind of valve rod axial direction seal ball-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822241407.XU CN209294457U (en) | 2018-12-29 | 2018-12-29 | A kind of valve rod axial direction seal ball-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209294457U true CN209294457U (en) | 2019-08-23 |
Family
ID=67649751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822241407.XU Withdrawn - After Issue CN209294457U (en) | 2018-12-29 | 2018-12-29 | A kind of valve rod axial direction seal ball-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209294457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357035A (en) * | 2018-12-29 | 2019-02-19 | 浙江东信阀门有限公司 | A kind of valve rod axial direction seal ball-valve |
-
2018
- 2018-12-29 CN CN201822241407.XU patent/CN209294457U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357035A (en) * | 2018-12-29 | 2019-02-19 | 浙江东信阀门有限公司 | A kind of valve rod axial direction seal ball-valve |
| CN109357035B (en) * | 2018-12-29 | 2023-12-01 | 浙江东信阀门有限公司 | Axial sealing ball valve of valve rod |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190823 Effective date of abandoning: 20231201 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190823 Effective date of abandoning: 20231201 |