CN105937652A - Adjustable type high-pressure-resisting three-eccentric center butterfly valve - Google Patents
Adjustable type high-pressure-resisting three-eccentric center butterfly valve Download PDFInfo
- Publication number
- CN105937652A CN105937652A CN201610354245.3A CN201610354245A CN105937652A CN 105937652 A CN105937652 A CN 105937652A CN 201610354245 A CN201610354245 A CN 201610354245A CN 105937652 A CN105937652 A CN 105937652A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- face
- sealing
- butterfly
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 210000004907 gland Anatomy 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
-
- 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
-
- 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
- F16K1/2268—Sealing means for the axis of rotation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an adjustable type high-pressure-resisting three-eccentric center butterfly valve. The valve comprises a valve rod, a valve plate and a valve body; a sealing seat is arranged on the valve plate, a valve body conical sealing face is arranged on the inner wall of a valve cavity of the valve body, and when the butterfly valve is closed, the sealing seat sealing face and the valve body conical sealing face are tightly attached; a shaft shoulder is arranged at the position, close to the valve rod, of the outer wall, opposite to the valve body conical sealing face, of the valve plate, the valve plate is sleeved with the sealing seat, and the sealing seat is pressed on the end face of the shaft shoulder in an abutting manner through a pressing plate; adjusting gaskets are arranged between the valve plate shaft shoulder and the sealing seat; and according to the further improvement, the adjusting gaskets are thin gaskets with the number being two or more. The inclined angle of the valve body conical sealing face ranges from 19.5 degrees to 20.5 degrees, and the sealing seat sealing face is arranged on the narrow annular protrusion on the outer circle of the sealing seat; the sealing seat is made of high-elasticity nickel base alloy materials; a shaft seal structure is an adjustable type sealing structure; and according to the valve, the valve body conical sealing face and the sealing seat sealing face are adjusted to keep in the tightly-matched state all the time, adjustment is convenient and rapid, high pressure can be resisted, and the service life is long.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind of three-eccentric-butterfly-valve.
Background technology
Three-eccentric-butterfly-valve, is widely used on metallurgy, electric power, petrochemical industry and the industrial pipeline such as plumbing and urban construction, makes adjustments flow and blocks fluid use.Existing three-eccentric-butterfly-valve includes valve rod, valve plate and valve body；Valve plate is provided with seal receptacle；The valve pocket inwall of valve body is provided with valve body conical seal (contact) face, and when butterfly valve cuts out, seal receptacle sealing surface fits tightly with valve body conical seal (contact) face；Being provided with the shaft shoulder in the position near valve rod on the outer wall that valve plate is relative with valve body conical seal (contact) face, sealed socket sleeve is contained on valve plate, is pressed on shaft shoulder end face by pressing plate.The defect of existing three-eccentric-butterfly-valve is: valve body conical seal (contact) face cannot regulate with coordinating of seal receptacle sealing surface, after a period of time, valve body conical seal (contact) face coordinates loose with seal receptacle sealing surface, when even producing gap, cannot be eliminated by adjustment, butterfly valve is short for service life.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, by adjustment, proposing one can remain that valve body conical seal (contact) face and seal receptacle sealing surface are in tight engagement, the adjustable high pressure resistant three-eccentric-butterfly-valve significantly increased the service life.
The present invention is achieved through the following technical solutions technical goal.
Adjustable high pressure resistant three-eccentric-butterfly-valve, including valve rod, valve plate and valve body；Valve rod passes valve body, is supported on valve body by upper bearing (metal) setting up and down, lower bearing；Described valve body top and valve rod junction are provided with shaft seal structure；Described valve plate is provided with seal receptacle；The valve pocket inwall of described valve body is provided with valve body conical seal (contact) face, and when butterfly valve cuts out, seal receptacle sealing surface fits tightly with valve body conical seal (contact) face；Being provided with the shaft shoulder in the position near valve rod on the outer wall that described valve plate is relative with valve body conical seal (contact) face, sealed socket sleeve is contained on valve plate, is pressed on shaft shoulder end face by pressing plate；It thes improvement is that: be provided with adjustment pad between the described valve plate shaft shoulder and seal receptacle.
In said structure, described adjustment pad is more than 2 thin type pads.
In said structure, described valve body conical seal (contact) face oblique angle is 19.5-20.5, and seal receptacle sealing surface is located on the narrow annular projection of seal receptacle cylindrical.
In said structure, described seal receptacle uses high resiliency nickel-bass alloy material.
In said structure, described shaft seal structure includes gland, sealing ring, screw；Described gland is sleeved on valve rod, and gland bottom is stretched in the valve body top on upper bearing (metal) top and the annular groove of valve rod junction, is slidably matched with annular groove, is enclosed in annular groove by sealing ring；Described screw runs through the hole on gland top, is connected with valve body top, scalable gland, the relative position of valve body.
In said structure, described sealing ring is the v-ring of more than 2 closed assemblies.
The present invention compared with prior art, has the positive effect that:
1, the valve pocket inwall of valve body is provided with valve body conical seal (contact) face, and valve body conical seal (contact) face oblique angle is 19.5-20.5, and so, media flow direction either forward the most reversely, can keep preferably sealing.
2, it is provided with adjustment pad between the valve plate shaft shoulder and seal receptacle, by adjusting the thickness of pad, remains that valve body conical seal (contact) face and seal receptacle sealing surface are in tight engagement, significantly improve voltage endurance capability, significantly extend present invention service life.
3, adjusting pad is more than 2 thin type pads, can be adjusted the thickness of pad by the quantity adjusting pad, remain that valve body conical seal (contact) face and seal receptacle sealing surface are in tight engagement, easy to adjust, quick.
4, seal receptacle uses high resiliency nickel-bass alloy material, and good springiness, anti-wear performance is good, significantly improves sealing reliability.
5, shaft seal structure is adjustable shaft seal structure, shaft seal structure can be made to be in positive sealing state by adjustment, substantially reduce leakage.
6, sealing ring is the v-ring of more than 2 closed assemblies, when sealing ring is compressed axially, can produce radial force, makes sealing ring be combined with annular groove sidewall, valve rod outer wall more tight, improves shaft seal structure sealing reliability further.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Fig. 2 is I enlarged schematic partial view in Fig. 1.
Detailed description of the invention
Below according to accompanying drawing and the invention will be further described in conjunction with the embodiments.
Adjustable high pressure resistant three-eccentric-butterfly-valve shown in the drawings, including valve rod 1, valve plate 2 and valve body 3；Valve rod 1, through valve body 3, is supported on valve body 3 by upper bearing (metal) 4 setting up and down, lower bearing 5；Valve body 3 top and valve rod 1 junction are provided with shaft seal structure 6；Valve plate 2 is provided with seal receptacle 7, and in the present embodiment, seal receptacle 7 uses high resiliency nickel-bass alloy material；The valve pocket inwall of valve body 3 is provided with valve body conical seal (contact) face, and valve body conical seal (contact) face oblique angle is 19.5-20.5, and seal receptacle 7 sealing surface is located on the narrow annular projection of seal receptacle 7 cylindrical；When butterfly valve cuts out, seal receptacle 7 sealing surface fits tightly with valve body 3 conical seal (contact) face；It is provided with the shaft shoulder 2.1 in the position near valve rod 1 on the outer wall that valve plate 2 is relative with valve body 3 conical seal (contact) face, seal receptacle 7 is sleeved on valve plate 2, adjustment pad 9 it is provided with between valve plate 2 shaft shoulder 2.1 and seal receptacle 7, in the present embodiment, adjusting pad 9 is that 2 thin type pads are (in other embodiments, adjusting pad 9 is that more than two thin type pad superposition is formed), pressing plate 8 compresses seal receptacle 7, seal receptacle 7, adjustment pad 9 are fixed on pressing plate 8, the shaft shoulder 2.1 end face.
Shaft seal structure 6 includes gland 6.1, sealing ring 6.2, screw 6.3；Gland 6.1 is sleeved on valve rod 1, gland 6.1 bottom is stretched in valve body 3 top on upper bearing (metal) 4 top and the annular groove of valve rod 1 junction, it is slidably matched with annular groove, sealing ring 6.2 is enclosed in annular groove, in the present embodiment, sealing ring 6.2 is the v-ring (in other embodiments, sealing ring 6.2 uses more than two v-ring closed assembly) of 2 closed assemblies；Screw 6.3 runs through the hole on gland 6.1 top, is connected with valve body 3 top, scalable gland 6.1, the relative position of valve body 3.
Claims (6)
1. an adjustable high pressure resistant three-eccentric-butterfly-valve, including valve rod (1), valve plate (2) and valve body (3)；Valve rod (1) passes valve body (3), is supported on valve body (3) by upper bearing (metal) (4) setting up and down, lower bearing (5)；Described valve body (3) top and valve rod (1) junction are provided with shaft seal structure (6)；Described valve plate (2) is provided with seal receptacle (7)；The valve pocket inwall of described valve body (3) is provided with valve body conical seal (contact) face, and when butterfly valve cuts out, seal receptacle (7) sealing surface fits tightly with valve body (3) conical seal (contact) face；Being provided with the shaft shoulder (2.1) in the position near valve rod (1) on the outer wall that described valve plate (2) is relative with valve body (3) conical seal (contact) face, seal receptacle (7) is sleeved on valve plate (2), is pressed on the shaft shoulder (2.1) end face by pressing plate (8)；It is characterized in that: between described valve plate (2) shaft shoulder (2.1) and seal receptacle (7), be provided with adjustment pad (9).
Adjustable high pressure resistant three-eccentric-butterfly-valve the most according to claim 1, it is characterised in that: described adjustment pad (9) is more than 2 thin type pads.
Adjustable high pressure resistant three-eccentric-butterfly-valve the most according to claim 1 and 2, it is characterised in that: described valve body conical seal (contact) face oblique angle is 19.5-20.5, and seal receptacle (7) sealing surface is located on the narrow annular projection of seal receptacle (7) cylindrical.
Adjustable high pressure resistant three-eccentric-butterfly-valve the most according to claim 3, it is characterised in that: described seal receptacle (7) uses high resiliency nickel-bass alloy material.
Adjustable high pressure resistant three-eccentric-butterfly-valve the most according to claim 4, it is characterised in that: described shaft seal structure (6) includes gland (6.1), sealing ring (6.2), screw (6.3)；Described gland (6.1) is sleeved on valve rod (1), and gland (6.1) bottom is stretched in valve body (3) top on upper bearing (metal) (4) top and the annular groove of valve rod (1) junction, is slidably matched with annular groove, is enclosed in annular groove by sealing ring (6.2)；Described screw (6.3) runs through the hole on gland (6.1) top, is connected with valve body (3) top, scalable gland (6.1), the relative position of valve body (3).
Adjustable high pressure resistant three-eccentric-butterfly-valve the most according to claim 5, it is characterised in that: described sealing ring (6.2) is the v-ring of more than 2 closed assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354245.3A CN105937652A (en) | 2016-05-25 | 2016-05-25 | Adjustable type high-pressure-resisting three-eccentric center butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354245.3A CN105937652A (en) | 2016-05-25 | 2016-05-25 | Adjustable type high-pressure-resisting three-eccentric center butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105937652A true CN105937652A (en) | 2016-09-14 |
Family
ID=57151616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610354245.3A Pending CN105937652A (en) | 2016-05-25 | 2016-05-25 | Adjustable type high-pressure-resisting three-eccentric center butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105937652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662233A (en) * | 2018-07-03 | 2018-10-16 | 浙江融乐环境科技有限公司 | A kind of movable valve seal ring butterfly valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100729839B1 (en) * | 2006-04-19 | 2007-06-21 | 피케이밸브 주식회사 | Cryogenic Butterfly Valve with Live Load Seat |
| CN201448454U (en) * | 2009-06-29 | 2010-05-05 | 江苏神通阀门股份有限公司 | Water slag butterfly valve |
| CN202360778U (en) * | 2011-11-18 | 2012-08-01 | 江苏络科阀门有限公司 | Butt clamp movable valve seat of butterfly valve |
| CN103047432A (en) * | 2011-10-16 | 2013-04-17 | 江苏神通阀门股份有限公司 | Bidirectional sealing butterfly valve |
| CN203115132U (en) * | 2013-04-02 | 2013-08-07 | 浙江贝尔控制阀门有限公司 | Two-way sealing three-eccentric center butterfly valve |
| CN104179994A (en) * | 2013-05-26 | 2014-12-03 | 江苏络科阀门有限公司 | All-metal bidirectional high-pressure butterfly valve |
-
2016
- 2016-05-25 CN CN201610354245.3A patent/CN105937652A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100729839B1 (en) * | 2006-04-19 | 2007-06-21 | 피케이밸브 주식회사 | Cryogenic Butterfly Valve with Live Load Seat |
| CN201448454U (en) * | 2009-06-29 | 2010-05-05 | 江苏神通阀门股份有限公司 | Water slag butterfly valve |
| CN103047432A (en) * | 2011-10-16 | 2013-04-17 | 江苏神通阀门股份有限公司 | Bidirectional sealing butterfly valve |
| CN202360778U (en) * | 2011-11-18 | 2012-08-01 | 江苏络科阀门有限公司 | Butt clamp movable valve seat of butterfly valve |
| CN203115132U (en) * | 2013-04-02 | 2013-08-07 | 浙江贝尔控制阀门有限公司 | Two-way sealing three-eccentric center butterfly valve |
| CN104179994A (en) * | 2013-05-26 | 2014-12-03 | 江苏络科阀门有限公司 | All-metal bidirectional high-pressure butterfly valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662233A (en) * | 2018-07-03 | 2018-10-16 | 浙江融乐环境科技有限公司 | A kind of movable valve seal ring butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160914 |
|
| WD01 | Invention patent application deemed withdrawn after publication |