CN107269891A - A kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage - Google Patents
A kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage Download PDFInfo
- Publication number
- CN107269891A CN107269891A CN201710484957.1A CN201710484957A CN107269891A CN 107269891 A CN107269891 A CN 107269891A CN 201710484957 A CN201710484957 A CN 201710484957A CN 107269891 A CN107269891 A CN 107269891A
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- CN
- China
- Prior art keywords
- flap
- seal
- valves
- cover plate
- extra
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid 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
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Abstract
The invention discloses a kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage, including valve body, the bottom of seal, which is provided with the top of flap, seal, is provided with sealing device；The side two ends of flap contact connection with the mouth of pipe of inlet；The bottom cylindrical side face of bonnet is cased with sealing ring, and the top of bonnet is welded with suspension ring through cover plate, and nut is engaged with bonnet, and the lower surface of nut and the upper surface of cover plate are connected.The small-bore oblique flap-type forging welding end check-valves of this extra-high voltage, valve body and flap are into conical surface seal connection, and flap has certain gradient, its flow resistance is set to diminish, noise is big when solution extreme pressure and check-valves are used, and the flimsy problem of valve clack sealing surface increases the service life；The seepage of valve sealing face zero is solved, anti-cavitation and the ability of antiscour of flap and valve body is improved, the overall performance and service life of valve is improved.
Description
Technical field
The present invention relates to valve technology field, especially a kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage.
Background technology
Check-valves is also known as check valve or swing check valve, and its effect is to prevent the medium in pipeline from flowing backwards.Check-valves by
It is swing type in structure, is flat seal when flap is with valve seal, flap tilts 5 ° during closed mode, and Open Here pressure is very
It is low, and pressure during medium back flow is very high, it is bigger than vertical board-like required opening force when the flap for tilting 5 ° is opened, generally go out
The big phenomenon of existing flow resistance, and flow resistance not only causes greatly big noise, valve is caused the sealing of flap in use in itself
Face destructible；Flap easily produces impact during closing, and strike note is very big, influences its service life.
The content of the invention
It is an object of the invention to provide a kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage, with valve seal
The seepage of face zero, improves anti-cavitation and the ability of antiscour of flap and valve body, improves the overall performance and service life of valve
Advantage, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme：A kind of small-bore oblique flap-type forging welding end of extra-high voltage
Check-valves, including valve body, the inside of the valve body are provided with flow-path tube and flap；The flow-path tube is by inlet, liquid outlet and close
Sealing composition, inlet and liquid outlet are symmetrically distributed in the two ends of valve body and inlet, liquid outlet and close centered on seal
Sealing is communicated；The bottom of the seal is provided with the top of flap, seal and is provided with sealing device；The side of the flap
Two ends contact connection with the mouth of pipe of inlet；The sealing device is made up of bonnet, sealing ring, cover plate, nut and suspension ring, valve
The bottom cylindrical side face of lid is cased with sealing ring, and the top of bonnet is welded with suspension ring through cover plate, and nut is engaged with bonnet, nut
The upper surface connection of lower surface and cover plate；The cover plate internal messing has bearing pin, and one end of bearing pin is connected with plug screw and sealing
Pad, the other end of bearing pin is cased with bushing；The gasket seal contacts connection with cover plate, and bushing is located in cover plate.
It is used as further scheme of the invention：The valve body and flap are into conical surface seal connection.
It is used as further scheme of the invention：Inlet and the liquid outlet axle center be located at the same line on, seal with
Inlet and liquid outlet are vertical.
It is used as further scheme of the invention：The sealing ring contacts connection with the inwall of seal.
Compared with prior art, beneficial effect of the present invention：
The sealing device installed on the small-bore oblique flap-type forging welding end check-valves of this extra-high voltage, seal avoids medium from seal
Outflow, while can dismantle sealing device, is repaired and is changed to the inside of check-valves；Valve body and flap are into conical surface seal
Connection, flap has certain gradient, its flow resistance is diminished, and noise is big when solution extreme pressure and check-valves are used, flap
The flimsy problem of sealing surface, increases the service life；The encapsulant design of sealing ring is that F316 stainless steels, pressure reach
4500Lb, sealed performance more preferably, solves the seepage of valve sealing face zero, improves anti-cavitation and the antiscour of flap and valve body
Ability, improves the overall performance and service life of valve.
Brief description of the drawings
Fig. 1 is overall structure profile of the invention.
Fig. 2 is A-A enlarged drawings of the invention.
Fig. 3 is local structural graph of the invention.
In figure：1- valve bodies；11- flow-path tubes；111- inlets；112- liquid outlets；113- seals；12- flaps；2- is sealed
Device；21- bonnets；22- sealing rings；23- cover plates；24- nuts；25- suspension ring；3- bearing pins；31- plug screws；32- gasket seals；33-
Bushing.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer in Fig. 1-3, the embodiment of the present invention, a kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage, including
Valve body 1, the inside of valve body 1 is provided with flow-path tube 11 and flap 12；Flow-path tube 11 is by inlet 111, liquid outlet 112 and seal
113 compositions, inlet 111 and liquid outlet 112 are symmetrically distributed in two ends and the inlet of valve body 1 centered on seal 113
111st, liquid outlet 112 and seal 113 are communicated, and medium flows to seal 113 from inlet 111, due to being installed in seal 113
Flap 12, the flowing that medium can only be unidirectional flows out from liquid outlet 112, and inlet 111 and the axle center of liquid outlet 112 are located at same
On bar line, seal 113 is vertical with inlet 111 and liquid outlet 112, and the sealing device 2 installed on seal 113 avoids being situated between
Matter flows out from seal 113, while can dismantle sealing device 2, the inside of check-valves is repaired and changed；Seal
113 bottom is provided with flap 12, and the top of seal 113 is provided with sealing device 2；The side two ends of flap 12 are and feed liquor
The mouth of pipe contact connection of mouth 111, valve body 1 and flap 12 are into conical surface seal connection, and flap 12 has certain gradient, makes it
Flow resistance diminishes, and noise is big when solution extreme pressure and check-valves are used, the flimsy problem of the sealing surface of flap 12, and extension uses the longevity
Life；Sealing device 2 is made up of bonnet 21, sealing ring 22, cover plate 23, nut 24 and suspension ring 25, the bottom cylindrical side face of bonnet 21
Be cased with sealing ring 22, sealing ring 22 contacts connection with the inwall of seal 113, the encapsulant design of sealing ring 22 be F316 not
Rust steel, pressure reach 4500Lb, and more preferably, the top of bonnet 21 is welded with suspension ring 25, nut 24 to sealed performance through cover plate 23
Engaged with bonnet 21, the lower surface of nut 24 is connected with the upper surface of cover plate 23, the top of bonnet 21 is welded with stud, spiral shell
Post passes through cover plate 23, is engaged by nut 24, bonnet 21 is fixed；The internal messing of cover plate 23 has bearing pin 3, one end connection of bearing pin 3
There are plug screw 31 and gasket seal 32, the other end of bearing pin 3 is cased with bushing 33；Gasket seal 32 contacts connection, bushing with cover plate 23
33 are located in cover plate 23, and cover plate 23 is fixed bearing pin 3, solve the seepage of valve sealing face zero, improve flap 12 and valve body 1
Anti-cavitation and antiscour ability, improve valve overall performance and service life.
In summary；The sealing device installed on the small-bore oblique flap-type forging welding end check-valves of this extra-high voltage, seal 113
2 avoid medium from being flowed out from seal 113, while can dismantle sealing device 2, the inside of check-valves are repaired and changed；
Valve body 1 and flap 12 are into conical surface seal connection, and flap 12 has certain gradient, its flow resistance is diminished, and solves extra-high voltage
Noise is big when power and check-valves are used, and the flimsy problem of the sealing surface of flap 12 increases the service life；The sealing material of sealing ring 22
Material design is that F316 stainless steels, pressure reach 4500Lb, and sealed performance more preferably, solves the seepage of valve sealing face zero, improved
Anti-cavitation and the ability of antiscour of the flap 12 with valve body 1, improve the overall performance and service life of valve.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (4)
1. a kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage, including valve body（1）, it is characterised in that：The valve body（1）
Inside be provided with flow-path tube（11）And flap（12）；The flow-path tube（11）By inlet（111）, liquid outlet（112）And sealing
Mouthful（113）Composition, inlet（111）And liquid outlet（112）With seal（113）Centered on be symmetrically distributed in valve body（1）Two
End and inlet（111）, liquid outlet（112）And seal（113）Communicate；The seal（113）Bottom flap is installed
（12）, seal（113）Top sealing device is installed（2）；The flap（12）Side two ends and inlet（111）
The mouth of pipe contact connection；The sealing device（2）By bonnet（21）, sealing ring（22）, cover plate（23）, nut（24）And suspension ring
（25）Composition, bonnet（21）Bottom cylindrical side face be cased with sealing ring（22）, bonnet（21）Top pass through cover plate（23）Welding
There are suspension ring（25）, nut（24）With bonnet（21）Engagement, nut（24）Lower surface and cover plate（23）Upper surface connection；
The cover plate（23）Internal messing has bearing pin（3）, bearing pin（3）One end be connected with plug screw（31）And gasket seal（32）, bearing pin（3）
The other end be cased with bushing（33）；The gasket seal（32）With cover plate（23）Contact connection, bushing（33）Positioned at cover plate（23）
It is interior.
2. the small-bore oblique flap-type forging welding end check-valves of a kind of extra-high voltage according to claim 1, it is characterised in that：It is described
Valve body（1）And flap（12）To be connected into conical surface seal.
3. the small-bore oblique flap-type forging welding end check-valves of a kind of extra-high voltage according to claim 1, it is characterised in that：It is described
Inlet（111）And liquid outlet（112）Axle center is located on the same line, seal（113）With inlet（111）And liquid outlet
（112）It is vertical.
4. the small-bore oblique flap-type forging welding end check-valves of a kind of extra-high voltage according to claim 1, it is characterised in that：It is described
Sealing ring（22）With seal（113）Inwall contact connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484957.1A CN107269891A (en) | 2017-06-23 | 2017-06-23 | A kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484957.1A CN107269891A (en) | 2017-06-23 | 2017-06-23 | A kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107269891A true CN107269891A (en) | 2017-10-20 |
Family
ID=60068695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710484957.1A Pending CN107269891A (en) | 2017-06-23 | 2017-06-23 | A kind of small-bore oblique flap-type forging welding end check-valves of extra-high voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107269891A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706706A (en) * | 1984-11-19 | 1987-11-17 | Corrotex Limited | Check valve and a seal for a check valve |
| CN201162864Y (en) * | 2008-03-04 | 2008-12-10 | 南通国电电站阀门有限公司 | Inclined flap type check valve |
| CN203940050U (en) * | 2014-06-25 | 2014-11-12 | 南通国电电站阀门有限公司 | The hard selfsealings circle of the oblique lobe formula of high-pressure anticorrosion non-return flap for the heart of nuclear power island |
| CN206958322U (en) * | 2017-06-23 | 2018-02-02 | 南通国电电站阀门股份有限公司 | A kind of small-bore tiltedly flap-type forging welding end check-valves of extra-high voltage |
-
2017
- 2017-06-23 CN CN201710484957.1A patent/CN107269891A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706706A (en) * | 1984-11-19 | 1987-11-17 | Corrotex Limited | Check valve and a seal for a check valve |
| CN201162864Y (en) * | 2008-03-04 | 2008-12-10 | 南通国电电站阀门有限公司 | Inclined flap type check valve |
| CN203940050U (en) * | 2014-06-25 | 2014-11-12 | 南通国电电站阀门有限公司 | The hard selfsealings circle of the oblique lobe formula of high-pressure anticorrosion non-return flap for the heart of nuclear power island |
| CN206958322U (en) * | 2017-06-23 | 2018-02-02 | 南通国电电站阀门股份有限公司 | A kind of small-bore tiltedly flap-type forging welding end check-valves of extra-high voltage |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |