CN106195293A - Soft sealing butterfly valve - Google Patents
Soft sealing butterfly valve Download PDFInfo
- Publication number
- CN106195293A CN106195293A CN201610784368.0A CN201610784368A CN106195293A CN 106195293 A CN106195293 A CN 106195293A CN 201610784368 A CN201610784368 A CN 201610784368A CN 106195293 A CN106195293 A CN 106195293A
- Authority
- CN
- China
- Prior art keywords
- valve
- cast iron
- soft sealing
- valve plate
- epoxy resin
- 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
Classifications
-
- 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
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to valve technology field, particularly relate to a kind of soft sealing butterfly valve, including cast iron valve body, changeable type rubber valve seat with described cast iron valve body interference fit, cast iron valve plate, and shaft type valve shaft, the sealing surface of described cast iron valve plate is provided with epoxy resin enamelled coating, described epoxy resin coating is in overall sphere.The sealing surface of soft sealing butterfly valve is designed to an integral spherical by the present invention, can effectively reduce packing torque, greatly reduce the moment of torsion of opening/shutting valve.And process that nodular cast iron valve plate is sprayed paint, reduce the environmental pollution of conventional electroplating processes, and be applicable to more environment, the such as special environment such as drinking water, water supply.
Description
Technical field
The present invention relates to valve technology field, particularly relate to a kind of soft sealing butterfly valve.
Background technology
In prior art, between valve seat and the butterfly plate of tradition butterfly valve, many employing cylinder inner planes coordinate, joining of this structure
There is certain drawback in conjunction mode: can not coordinate the tightest between butterfly plate and valve seat, if coordinating too tight, valve switch is the most tired
Difficulty, if not exerting oneself, being difficult to Open valve or completely closing valve, and firmly closing valve, butterfly plate be just easily deformed and
Cause damage.But, if butterfly plate coordinates defective tightness with valve seat, then it is easy to produce leakage.
Summary of the invention
It is an object of the invention to overcome the deficiency of above-mentioned technology, and a kind of soft sealing butterfly valve is provided, strengthen valve seal
Property.
The present invention for achieving the above object, by the following technical solutions:
A kind of soft sealing butterfly valve, it is characterised in that include cast iron valve body, with the changeable type of described cast iron valve body interference fit
Rubber valve seat, cast iron valve plate, and shaft type valve shaft, the sealing surface of described cast iron valve plate is provided with epoxy resin enamelled coating,
Described epoxy resin coating is in overall sphere.
Preferably, described cast iron valve plate is spheroidal graphite cast-iron.
Preferably, the thickness of described epoxy resin enamelled coating is 0.125mm-0.175mm.
Preferably, described valve seat is exoskeletal quality of rubber materials valve seat.
Preferably, described sealing surface includes the two sides of valve plate and the upper end face corresponding with upper valve port and lower valve port pair
The lower end face answered, two sides of described valve plate, upper end face, lower end face are on same sphere.
The invention has the beneficial effects as follows: compared with prior art, the sealing surface of soft sealing butterfly valve is designed to one by the present invention
Individual integral spherical, can effectively reduce packing torque, greatly reduce the moment of torsion of opening/shutting valve.And nodular cast iron valve plate is sprayed paint
Process, reduce the environmental pollution of conventional electroplating processes, and it is special to be applicable to more environment, such as drinking water, water supply etc.
Environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and preferred embodiment describe in detail the present invention detailed description of the invention.In description of the invention
In, it is to be understood that term " " center ", " longitudinally ", " laterally ", "front", "rear", "left", "right", " vertically ", " level ",
" push up ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship are based on orientation shown in the drawings or position relationship, be only for
It is easy to describe the present invention and simplifying describe rather than instruction or the device of hint indication or element must have a specific side
Position, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
As it is shown in figure 1, the soft sealing butterfly valve of the present invention includes cast iron valve body 1, rubber valve seat 2, cast iron valve plate 3, Yi Jishang
Valve shaft 4, lower valve shaft 5, the sealing surface of described cast iron valve plate is provided with epoxy resin enamelled coating, described epoxy resin enamelled coating in
Overall sphere.Described sealing surface include the two sides of valve plate and the upper end face corresponding with upper valve port and lower valve port corresponding under
End face, two sides of described valve plate, upper end face, lower end face are on same sphere.By the sealing surface of soft sealing butterfly valve
It is designed to an integral spherical, can effectively reduce packing torque, greatly reduce the moment of torsion of opening/shutting valve.Meanwhile, spheroidal graphite is cast
Ferrum valve plate sprays paint process, reduces the environmental pollution of conventional electroplating processes, and is applicable to more environment, such as drinking water,
The special environments such as water supply, specifically, spraying paint for old man's board epoxy resin coating, epoxy resin coating of nodular cast iron valve plate sealing surface
The thickness of layer is 0.125mm to 0.175mm.
Wherein, described upper valve shaft upper end passes from the upper valve port of valve body and passes through key 1 and is connected with operating-controlling mechanism to realize
The unlatching of cast iron valve plate, meanwhile, is provided with step on described upper valve shaft and realizes valve shaft by gland 6 with valve shaft on location
Spacing, all there is seal with O ring axis hole described gland inside and outside.The upper valve shaft on top is provided with upper guide bush 7 to carry out guiding also
Reducing friction, reduce and open moment, the top of the upper valve port of described valve body is fixedly installed gland and filler 8 realizes end
Sealing and location.
Described lower valve shaft is connected with cast iron valve plate, described lower valve shaft is provided with step with under the lower valve shaft realization of location
Valve shaft is fixed relative to the position of valve body, meanwhile, is provided with O 10 between lower valve shaft bottom and lower plugging plate 9.Valve plate of the present invention
Hollow double break axle, the design of valve plate opposing solid double break axle adds the streamlined of middle part, effectively reduces the pressure loss of valve.
The valve seat of the present invention realizes effectively sealing by interference fit with valve body, and valve plate and valve seat pass through integral spherical
Seal, make valve plate contact with valve seat more preferably, it is ensured that valve plate seals, and reduce valve torque.
Preferably, described valve seat is exoskeletal valve seat, and valve seat uses reinforced grid design, and rubber thickness is big, compression resilience
Excellent so that moment of torsion reduces, and with valve body interference seal, sealing effectiveness is more preferable, and valve seat can make multiple quality of rubber materials, with suitable
By various different operating modes, valve seat is replaceable simultaneously, it is achieved product is the different operating mode of convenient and swift application after exchanging valve seat.
The above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications
Also should be regarded as protection scope of the present invention.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. a soft sealing butterfly valve, it is characterised in that include cast iron valve body, replaceable with described cast iron valve body interference fit
Formula rubber valve seat, cast iron valve plate, and shaft type valve shaft, the sealing surface of described cast iron valve plate is provided with epoxy resin coating
Layer, described epoxy resin coating is in overall sphere.
2. soft sealing butterfly valve as claimed in claim 1, it is characterised in that described cast iron valve plate is spheroidal graphite cast-iron.
3. soft sealing butterfly valve as claimed in claim 1, it is characterised in that the thickness of described epoxy resin enamelled coating is
0.125mm-0.175mm。
4. soft sealing butterfly valve as claimed in claim 1, it is characterised in that described valve seat is exoskeletal quality of rubber materials valve seat.
5. soft sealing butterfly valve as claimed in claim 1, it is characterised in that described sealing surface include valve plate two sides and
The upper end face corresponding with upper valve port and lower end face corresponding to lower valve port, two sides of described valve plate, upper end face, lower end face are
On same sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784368.0A CN106195293A (en) | 2016-08-31 | 2016-08-31 | Soft sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784368.0A CN106195293A (en) | 2016-08-31 | 2016-08-31 | Soft sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106195293A true CN106195293A (en) | 2016-12-07 |
Family
ID=58085169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610784368.0A Pending CN106195293A (en) | 2016-08-31 | 2016-08-31 | Soft sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106195293A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB679706A (en) * | 1949-12-22 | 1952-09-24 | Anders Peder Marius Pedersen | Stop valve |
| JPS57124162A (en) * | 1981-01-26 | 1982-08-02 | Hitachi Ltd | Sealing device of butterfly valve |
| CN201443606U (en) * | 2009-03-30 | 2010-04-28 | 铁岭阀门(集团)特种阀门有限责任公司 | Surfacing sealing ring cast iron butterfly valve |
| CN105351539A (en) * | 2015-12-15 | 2016-02-24 | 天津富赛克流体控制设备有限公司 | Butterfly valve with rubber seat |
| CN105402423A (en) * | 2015-12-15 | 2016-03-16 | 天津富赛克流体控制设备有限公司 | Soft seal butterfly valve |
| CN206130132U (en) * | 2016-08-31 | 2017-04-26 | 天津富赛克流体控制设备有限公司 | Soft -sealing butterfly valve |
-
2016
- 2016-08-31 CN CN201610784368.0A patent/CN106195293A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB679706A (en) * | 1949-12-22 | 1952-09-24 | Anders Peder Marius Pedersen | Stop valve |
| JPS57124162A (en) * | 1981-01-26 | 1982-08-02 | Hitachi Ltd | Sealing device of butterfly valve |
| CN201443606U (en) * | 2009-03-30 | 2010-04-28 | 铁岭阀门(集团)特种阀门有限责任公司 | Surfacing sealing ring cast iron butterfly valve |
| CN105351539A (en) * | 2015-12-15 | 2016-02-24 | 天津富赛克流体控制设备有限公司 | Butterfly valve with rubber seat |
| CN105402423A (en) * | 2015-12-15 | 2016-03-16 | 天津富赛克流体控制设备有限公司 | Soft seal butterfly valve |
| CN206130132U (en) * | 2016-08-31 | 2017-04-26 | 天津富赛克流体控制设备有限公司 | Soft -sealing 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
|
| RJ01 | Rejection of invention patent application after publication |