CN107314116A - A kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type - Google Patents
A kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type Download PDFInfo
- Publication number
- CN107314116A CN107314116A CN201710484867.2A CN201710484867A CN107314116A CN 107314116 A CN107314116 A CN 107314116A CN 201710484867 A CN201710484867 A CN 201710484867A CN 107314116 A CN107314116 A CN 107314116A
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- CN
- China
- Prior art keywords
- valve
- flap
- pressure relief
- overcritical
- pressure
- 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
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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
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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
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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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type, the inner side of valve body is provided with throttling flap, exchangeable valve seat, common flap, valve clack cover and valve rod, exchangeable valve seat is flexibly connected the inwall of valve body, the top of exchangeable valve seat is flexibly connected throttling flap by sealing ring, the first pressure relief vent and the second pressure relief vent are offered on throttling flap, the inner side of throttling flap is provided with common flap, the bottom of common flap connection valve bar；This overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type, by installing exchangeable valve seat, follow-up maintenance and replacing is facilitated, is cut operating costs, compared to traditional single valve clack, now using throttling flap and common flap Double-clack structure, and two kinds of pressure relief vents are opened up on throttling flap for pressure release, operational torque can be reduced, valve seal performance and service life is improved, valve rod size can also be reduced, cost is reduced.
Description
Technical field
The present invention relates to industrial valve technical field, especially a kind of pneumatic cut-off throttling of overcritical heavy caliber pressure-releasing type
Valve.
Background technology
Traditional cut-off throttle valve be mainly used in the vapour roads in field such as petrochemical industry, On The Oil And Gas Transportation, mine metallurgy, electric power,
In the pipeline of the flowings such as water route, oil circuit, for connecting and blocking the medium in pipeline, it is ensured that the normal operation of equipment and pipeline；
The medium flow direction of conventional cut-off throttle valve is usually low in and high out, but such a medium flow direction is for the larger valve of high pressure and bore
The shortcomings of there is big poor sealing performance, operational torque, short service life and maintenance and inconvenient renewal part for door.
The content of the invention
It is an object of the invention to provide a kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type, possess convenient follow-up
Maintenance and replacing, reduce operational torque, the advantages of improving valve seal performance and service life and reduce cost, with solution
State the problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical scheme：A kind of overcritical pneumatic cut-off of heavy caliber pressure-releasing type
Choke valve, including valve body, the inner side of the valve body is provided with throttling flap, exchangeable valve seat, common flap, valve clack cover and valve rod, institute
The inwall that exchangeable valve seat is flexibly connected valve body is stated, the top of exchangeable valve seat is flexibly connected throttling flap, the section by sealing ring
The first pressure relief vent and the second pressure relief vent are offered on stream flap, the first pressure relief vent and the second pressure relief vent are manhole, throttling
The inner side of flap is provided with common flap, and the common flap is located at the surface of the first pressure relief vent, common valve flap contacts connection the
The top of one pressure relief vent, the second pressure relief vent be located at common flap outside, the bottom of common flap connection valve bar, the valve rod
Valve clack cover is installed, valve rod is connected by valve clack cover and is enclosed with filler, valve rod on the outside of throttling flap, valve rod at bottom outer edge
Bonnet is connected with by filler, the bottom of the bonnet is bolted valve body, and the top of bonnet is connected by straight pin
It is connected to pressing plate, the bottom of the pressing plate is connected with gland, the top of gland bonding pad, the inwall of pressing plate and gland is and valve rod
It is provided with the top of connection, valve rod at the top of support, support and is fixedly connected with pneumatic head.
It is used as further scheme of the invention：The junction of the common flap and valve rod is provided with divided ring.
It is used as further scheme of the invention：The bottom of the valve body offers mudhole, and is provided with mudhole
Plug screw.
It is used as further scheme of the invention：The central axis of first pressure relief vent and the central axis of the second pressure relief vent
Form right angle.
It is used as further scheme of the invention：The junction of the bonnet and valve body is using hard sealing, encapsulant
F316 stainless steels.
It is used as further scheme of the invention：The exchangeable valve seat is with the junction of throttling flap and throttling flap and commonly
The junction of flap is mounted on sealing ring.
Compared with prior art, beneficial effect of the present invention：This overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type, passes through
Exchangeable valve seat is installed, follow-up maintenance and replacing is facilitated, cuts operating costs, compared to traditional single valve clack, now using throttling
Flap and common flap Double-clack structure, and two kinds of pressure relief vents are opened up for pressure release on throttling flap, operating physical force can be reduced
Square, improves valve seal performance and service life, moreover it is possible to reduce valve rod size, reduce cost.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is close-up schematic view of the invention.
In figure：1- valve bodies；101- mudholes；2- throttling flaps；The pressure relief vents of 201- first；The pressure relief vents of 202- second；3- can
Change valve seat；The common flaps of 4-；5- valve clack covers；6- valve rods；7- fillers；8- bonnets；9- pressing plates；10- glands；11- supports；12- gas
Dynamic head；13- divided rings.
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. 1-2, the embodiment of the present invention, a kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type, including
Valve body 1, the bottom of valve body 1 offers mudhole 101, and is provided with mudhole 101 plug screw, and blowdown more facilitates, valve body 1
Inner side provided with throttling flap 2, exchangeable valve seat 3, common flap 4, valve clack cover 5 and valve rod 6, exchangeable valve seat 3 is flexibly connected valve body 1
Inwall, the top of exchangeable valve seat 3 is flexibly connected throttling flap 2 by sealing ring, and traditional valve seat is welded on valve seat, this
Exchangeable valve seat 3 can be dismantled, and facilitate follow-up maintenance and replacing, and the junction of exchangeable valve seat 3 and the flap 2 that throttles is provided with close
Seal ring, sealing ring ensures to offer the first pressure relief vent 201 and the second pressure relief vent 202, the first release on sealing, throttling flap 2
The central axis form right angle of the central axis in hole 201 and the second pressure relief vent 202, the first pressure relief vent 201 and the second pressure relief vent 202
Be used to pressure release, can effectively reduce operational torque, improve valve seal performance and service life, moreover it is possible to reduce valve rod size and
Operation device specification is reduced, cost is reduced, the first pressure relief vent 201 and the second pressure relief vent 202 are manhole, throttle flap 2
Inner side be provided with common flap 4, compared to traditional single valve clack, now using throttling flap 2 and the bivalve valve structure of common flap 4, section
The junction of stream flap 2 and common flap 4 is provided with sealing ring, and sealing ring ensures sealing, and common flap 4 is located at the first release
The surface in hole 201, the top of the common contact of flap 4 the first pressure relief vent 201 of connection, the second pressure relief vent 202 is located at common flap 4
Outside, common flap 4 connects the bottom of valve rod 6, and the junction of common flap 4 and valve rod 6 is provided with divided ring 13, so on
Just throttling flap 2 and common flap 4 can be driven to move together when mobile, valve clack cover 5 is installed at the bottom outer edge of valve rod 6,
Valve rod 6 is enclosed with filler 7 by the connection throttling flap 2 of valve clack cover 5, the outside of valve rod 6, and valve rod 6 is connected with by filler 7
Bonnet 8, the bottom of bonnet 8 is bolted valve body 1, and the junction of bonnet 8 and valve body 1 is sealed using hard, and encapsulant is
F316 stainless steels, compared to former nickel wire graphite grazing, the sealing effectiveness of F316 stainless steel seals more preferably, the top of bonnet 8
Pressing plate 9 is connected with by straight pin, the bottom of pressing plate 9 is connected with gland 10, the top of the bonding pad 7 of gland 10, pressing plate 9 and pressure
The inwall of set 10 is connected with valve rod 6, and the top of valve rod 6 is provided with support 11, and the top of support 11 is fixedly connected with pneumatic head
12。
In summary：This overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type, by installing exchangeable valve seat 3, is facilitated
Follow-up maintenance and replacing, cuts operating costs, compared to traditional single valve clack, now using throttling flap 2 and the bivalve of common flap 4
Valve structure, and two kinds of pressure relief vents are opened up for pressure release on throttling flap 2, operational torque can be reduced, valve tightness is improved
Energy and service life, moreover it is possible to reduce valve rod size, reduce cost.
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 (6)
1. a kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type, including valve body（1）, it is characterised in that：The valve body（1）
Inner side provided with throttling flap（2）, exchangeable valve seat（3）, common flap（4）, valve clack cover（5）And valve rod（6）, the exchangeable valve seat
（3）It is flexibly connected valve body（1）Inwall, exchangeable valve seat（3）Top pass through sealing ring be flexibly connected throttling flap（2）, it is described
Throttle flap（2）On offer the first pressure relief vent（201）With the second pressure relief vent（202）, the first pressure relief vent（201）With the second release
Hole（202）It is manhole, throttle flap（2）Inner side be provided with common flap（4）, the common flap（4）Positioned at first
Pressure relief vent（201）Surface, common flap（4）Contact the first pressure relief vent of connection（201）Top, the second pressure relief vent（202）
Positioned at common flap（4）Outside, common flap（4）Connect valve rod（6）Bottom, the valve rod（6）Bottom outer edge at
Valve clack cover is installed（5）, valve rod（6）Pass through valve clack cover（5）Connection throttling flap（2）, valve rod（6）Outside be enclosed with filler
（7）, valve rod（6）Pass through filler（7）It is connected with bonnet（8）, the bonnet（8）Bottom be bolted valve body（1）,
Bonnet（8）Top pressing plate is connected with by straight pin（9）, the pressing plate（9）Bottom be connected with gland（10）, gland（10）
Bonding pad（7）Top, pressing plate（9）And gland（10）Inwall and valve rod（6）Connection, valve rod（6）Top be provided with
Support（11）, support（11）Top be fixedly connected with pneumatic head（12）.
2. a kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type according to claim 1, it is characterised in that：It is described
Common flap（4）With valve rod（6）Junction divided ring is installed（13）.
3. a kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type according to claim 1, it is characterised in that：It is described
Valve body（1）Bottom offer mudhole（101）, and in mudhole（101）Plug screw is inside installed.
4. a kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type according to claim 1, it is characterised in that：It is described
First pressure relief vent（201）Central axis and the second pressure relief vent（202）Central axis form right angle.
5. a kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type according to claim 1, it is characterised in that：It is described
Bonnet（8）With valve body（1）Junction using hard sealing, encapsulant is F316 stainless steels.
6. a kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type according to claim 1, it is characterised in that：It is described
Exchangeable valve seat（3）With throttling flap（2）Junction and throttling flap（2）With common flap（4）Junction be mounted on it is close
Seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484867.2A CN107314116A (en) | 2017-06-23 | 2017-06-23 | A kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484867.2A CN107314116A (en) | 2017-06-23 | 2017-06-23 | A kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107314116A true CN107314116A (en) | 2017-11-03 |
Family
ID=60179503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710484867.2A Pending CN107314116A (en) | 2017-06-23 | 2017-06-23 | A kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107314116A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740881A (en) * | 2017-11-15 | 2018-02-27 | 陈风琴 | A kind of valve with regulation leak-stopping function |
| CN108561563A (en) * | 2018-05-31 | 2018-09-21 | 南通国电电站阀门股份有限公司 | Nuclear power island heart bellows guide type screw down nonreturn valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4615354A (en) * | 1980-05-08 | 1986-10-07 | S.I.G.M.A. - Societa Idraulica Generale Macchine Accessori | Valve system timing device for pipes carrying liquid under pressure |
| CN2163909Y (en) * | 1993-06-30 | 1994-05-04 | 宋顺义 | Mechanical sealed energy-saving stop valve |
| CN203286009U (en) * | 2013-06-07 | 2013-11-13 | 南通国电电站阀门有限公司 | Electric rotation-free supercritical throttle valve |
| CN203348564U (en) * | 2013-07-15 | 2013-12-18 | 南通国电电站阀门有限公司 | Large-diameter double-valve-flap pressure relief throttling valve |
| CN206958269U (en) * | 2017-06-23 | 2018-02-02 | 南通国电电站阀门股份有限公司 | A kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type |
-
2017
- 2017-06-23 CN CN201710484867.2A patent/CN107314116A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4615354A (en) * | 1980-05-08 | 1986-10-07 | S.I.G.M.A. - Societa Idraulica Generale Macchine Accessori | Valve system timing device for pipes carrying liquid under pressure |
| CN2163909Y (en) * | 1993-06-30 | 1994-05-04 | 宋顺义 | Mechanical sealed energy-saving stop valve |
| CN203286009U (en) * | 2013-06-07 | 2013-11-13 | 南通国电电站阀门有限公司 | Electric rotation-free supercritical throttle valve |
| CN203348564U (en) * | 2013-07-15 | 2013-12-18 | 南通国电电站阀门有限公司 | Large-diameter double-valve-flap pressure relief throttling valve |
| CN206958269U (en) * | 2017-06-23 | 2018-02-02 | 南通国电电站阀门股份有限公司 | A kind of overcritical pneumatic cut-off throttle valve of heavy caliber pressure-releasing type |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740881A (en) * | 2017-11-15 | 2018-02-27 | 陈风琴 | A kind of valve with regulation leak-stopping function |
| CN108561563A (en) * | 2018-05-31 | 2018-09-21 | 南通国电电站阀门股份有限公司 | Nuclear power island heart bellows guide type screw down nonreturn valve |
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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 |
Application publication date: 20171103 |
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| RJ01 | Rejection of invention patent application after publication |