CN108561563A - Nuclear power island heart bellows guide type screw down nonreturn valve - Google Patents
Nuclear power island heart bellows guide type screw down nonreturn valve Download PDFInfo
- Publication number
- CN108561563A CN108561563A CN201810545787.8A CN201810545787A CN108561563A CN 108561563 A CN108561563 A CN 108561563A CN 201810545787 A CN201810545787 A CN 201810545787A CN 108561563 A CN108561563 A CN 108561563A
- Authority
- CN
- China
- Prior art keywords
- valve
- bellows
- flap
- cavity
- valve body
- 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.)
- Granted
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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
- 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
- F16K1/02—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 screw-spindle
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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
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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
-
- 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
- F16K15/06—Check valves with guided rigid valve members with guided stems
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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
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a kind of nuclear power island heart of high-temperature pipe apparatus field bellows guide type screw down nonreturn valves,Including valve body,Valve seat,Valve deck,Flap,Valve clack cover,Valve rod,Middle head gasket,Filler,Packing seat,Pressing plate,Pressing sleeve,Gearhead,Guide plate,Bellows,Flap guide ring,Plug screw and keying position indicator,The both ends of the valve body are the inlet and outlet of valve body,Valve body is equipped with low groove cavity and high groove cavity,The import of valve body is low groove side,The inlet and outlet of valve body are high groove side,Valve seat is equipped between low groove cavity and high groove cavity,Valve seat has flap guide ring,Valve seat is equipped with valve deck,Valve deck ends the flowing of the liquid between low groove cavity and high groove cavity,Valve deck is equipped with valve clack cover,Valve deck has guide rod,Valve clack cover is connect with bellows,Valve rod is located in the cavity of valve clack cover and bellows,Valve rod is moved up and down along cavity,Bellows is elastic tube body,Bellows makes flap rise by valve clack cover.
Description
Technical field
The present invention relates to a kind of nuclear power island heart of high-temperature pipe apparatus field bellows guide type screw down nonreturn valves.
Background technology
The function of traditional shut-off valve is off or connects the medium in pipeline；The function of check-valves is that control medium is flow backwards.
The screw down nonreturn valve used domestic at present all there is manufacture require it is high, be easy leakage, service life is short the shortcomings of.Bellows is led
To formula screw down nonreturn valve have rational sealing structure and corrosion resistance, service life is long, and maintenance frequency is few, reduce manage at
This.Robust sylphon seal design, ensures the zero leakage of valve rod, provides the condition of Maintenance free.Valve opening and closing torque
It is small, reduce labor intensity.The external seal of valve is sealed using sylphon seal and graphite, stainless steel gasket, sealed reliable, for a long time
Using can not have to replace airtight and watertight padding.It is upper strictly using foreign advanced standard designing and manufacturing.Bellows guide type stops
Valve is returned, multi-purpose valve, frequency of use is higher, and valve sealing face is easy to wear, it is necessary to detachable valve seat is designed, it is easy to maintenance.It adopts
With STL cemented carbide materials, valve sealing face wearability is improved.
Invention content
It is sealed the purpose of the present invention is overcoming the deficiencies of the prior art and provide one kind, is corrosion-resistant, service life is long and drop
The nuclear power island heart of low operating cost bellows guide type screw down nonreturn valve.
The present invention is achieved by the following technical solutions：
A kind of nuclear power island heart bellows guide type screw down nonreturn valve, including valve body, valve seat, valve deck, flap, valve clack cover, valve rod,
Middle head gasket, filler, Packing seat, pressing plate, pressing sleeve, gearhead, guide plate, bellows, flap guide ring, plug screw and keying position
Indicator, it is characterised in that：The both ends of the valve body are the inlet and outlet of valve body, and valve body is equipped with low groove cavity and high groove is empty
The import of chamber, valve body is low groove side, and the inlet and outlet of valve body are high groove side, and valve is equipped between low groove cavity and high groove cavity
Seat, valve seat have flap guide ring, and valve seat is equipped with flap, and flap ends the liquid between low groove cavity and high groove cavity
Flowing, flap are equipped with valve clack cover, and flap has guide rod, and valve rod is located in the cavity of valve clack cover and bellows, valve rod edge
Cavity moves up and down, and bellows is elastic tube body, and bellows makes flap rise by valve rod.Former valve clack cover, which plays valve rod to be oriented to, to be made
With, bellows guide type screw down nonreturn valve, multi-purpose valve, frequency of use is higher；Above-mentioned technical proposal is further described：
The valve body inlet and outlet both ends welded type is connect with pipeline；Above-mentioned technical proposal is further described：The valve body
Bottom is equipped with mudhole, facilitates removal dirt；Above-mentioned technical proposal is further described：It is that the valve rod passes through rotation
Nut is promoted, and valve rod uses fine pitch screw-driven, it can be achieved that trace regulation to flow, valve rod upper end are equipped with closed position instruction
Device, the stroke that control valve opens and closes；Above-mentioned technical proposal is further described：Sealing surface between the valve seat and flap is adopted
With STL cemented carbide materials, valve sealing face wearability is improved.
The present invention has the characteristics that be sealed, corrosion-resistant and service life is long.
Description of the drawings
Fig. 1 is nuclear power island heart bellows guide type screw down nonreturn valve structural schematic diagram.
In figure：Valve body 1, valve seat 2, valve deck 3, valve clack cover 4, valve rod 5, body cap 6, filler 7, Packing seat 8, pressing plate 9, pressing sleeve
10, guide plate 11, gearhead 12, nut 13, bellows 14, flap guide ring 15, plug screw 16, mudhole 17, middle head gasket 18
With keying position indicator 19.
Specific implementation mode
Present disclosure is further described below in conjunction with the accompanying drawings：
It as shown is nuclear power island heart bellows guide type screw down nonreturn valve structural schematic diagram, including valve body 1, valve seat 2, valve deck
3, valve clack cover 4, valve rod 5, body cap 6, filler 7, Packing seat 8, pressing plate 9, pressing sleeve 10, guide plate 11, gearhead 12, nut 13,
Bellows 14, flap guide ring 15, plug screw 16, mudhole 17, middle head gasket 18 and keying position indicator 19.
The purpose of the present invention is valves to use bellows guide type structure, and valve seat is detachable, easy to maintenance.It is more to solve a valve
Structure meets applying working condition, designs a kind of nuclear power island heart bellows guide type screw down nonreturn valve meeting applying working condition.
Design scheme
（1）The technology that user investigates → identifies project requires and technical conditions → design calculates, and determines the wall thickness of valve pressure part
Equal technical parameters → design valve.
（2）Product structure：Nuclear power island heart bellows guide type screw down nonreturn valve.
（3）Composition：Valve body, valve seat, valve deck, flap, valve clack cover, valve rod, middle head gasket, filler, Packing seat, pressing plate, pressure
Set, guide plate, bellows, flap guide ring, plug screw, opens and closes the compositions such as position indicator at gearhead.
（4）Connection type：Import and export both ends welded type.
Improvement project
（1）The effect of former valve clack cover is the connection of valve rod and flap, is now changed to connect with flap, play the guiding role to valve rod.
(2) former valve seat welds on the body, bad dismounting.It is now changed to detachable valve seat, it is easy to maintenance.
（3) it is off valve when medium enters from low groove；It is check-valves, multi-purpose valve way when medium enters from high groove.
（4）Increase a mudhole, removes dirt；Increase a keying position indicator, the stroke that control valve opens and closes.
（5）Valve rod uses fine pitch screw-driven, it can be achieved that trace regulation to flow.
（6）Former shut-off valve valve rod rotary valve rod nut does not rotate.It is now changed to without spin, valve rod does not rotate, valve stem nut rotation
Turn, moves along a straight line up and down.
Implementation
1. the technology that user investigates → identifies project requires and technical conditions → design calculates, the wall thickness etc. of valve pressure part is determined
Master-plan → design review of technical parameter → valving scheme → required to select qualification with technical conditions according to the technology of design
Supplier → product purchasing production need raw material → by standard and technology requirements detection check and accept → press detail of design tissue life
Authorized by state is sent in production → assembly → carrying out properties detection and experiment to valve model machine by the technology requirement of standard and design →
Authoritative department be detected → detect qualification after, technique, production division formulate technique suitable for mass production → tissue batch
Production.
2. process route：
External coordination cast blank → inspection → roughing → finishing → dress valve seat → smart car sealing surface → sealing surface dye penetrant inspection →
Drilling → grinding seal surface.
Claims (5)
1. a kind of nuclear power island heart bellows guide type screw down nonreturn valve, including valve body, valve seat, valve deck, flap, valve clack cover, valve
Bar, middle head gasket, filler, Packing seat, pressing plate, pressing sleeve, gearhead, guide plate, bellows, flap guide ring, plug screw and keying
Position indicator, it is characterised in that：The both ends of the valve body are the inlet and outlet of valve body, and valve body is equipped with low groove cavity and Gao Po
The import of mouth cavity, valve body is low groove side, and the inlet and outlet of valve body are high groove side, are set between low groove cavity and high groove cavity
There are valve seat, valve seat to have flap guide ring, valve seat is equipped with flap, and flap ends between low groove cavity and high groove cavity
Liquid flows, and flap is equipped with valve clack cover, and flap has guide rod, and valve rod is located in the cavity of valve clack cover and bellows, valve
Bar is moved up and down along cavity, and bellows is elastic tube body, and bellows makes flap rise by valve rod.
2. nuclear power island according to claim 1 heart bellows guide type screw down nonreturn valve, it is characterised in that：The valve
Body inlet and outlet both ends welded type is connect with pipeline.
3. nuclear power island according to claim 1 heart bellows guide type screw down nonreturn valve, it is characterised in that：The valve
Body bottom is equipped with mudhole.
4. nuclear power island according to claim 1 heart bellows guide type screw down nonreturn valve, it is characterised in that：It is described
Valve rod is promoted by rotating nuts, and valve rod uses fine pitch screw-driven, valve rod upper end to be equipped with closed position indicator.
5. nuclear power island according to claim 1 heart bellows guide type screw down nonreturn valve, it is characterised in that：The valve seat
Sealing surface between flap uses STL cemented carbide materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545787.8A CN108561563B (en) | 2018-05-31 | 2018-05-31 | Corrugated pipe guide type stop check valve for nuclear power island core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545787.8A CN108561563B (en) | 2018-05-31 | 2018-05-31 | Corrugated pipe guide type stop check valve for nuclear power island core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108561563A true CN108561563A (en) | 2018-09-21 |
| CN108561563B CN108561563B (en) | 2020-11-27 |
Family
ID=63552441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810545787.8A Active CN108561563B (en) | 2018-05-31 | 2018-05-31 | Corrugated pipe guide type stop check valve for nuclear power island core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561563B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202252179U (en) * | 2011-10-14 | 2012-05-30 | 南通市电站阀门有限公司 | Stop check valve for high-pressure bellows |
| CN203146835U (en) * | 2013-03-15 | 2013-08-21 | 胡相兰 | Corrugated pipe sealing stop valve with handwheel |
| CN203348565U (en) * | 2013-07-15 | 2013-12-18 | 南通国电电站阀门有限公司 | Angle high-pressure double-acting valve |
| CN105508720A (en) * | 2016-01-14 | 2016-04-20 | 北京市阀门总厂股份有限公司 | Corrugated pipe stop valve for photo-thermal electricity generation fused salt |
| CN107314116A (en) * | 2017-06-23 | 2017-11-03 | 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 |
| CN208311476U (en) * | 2018-05-31 | 2019-01-01 | 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 |
-
2018
- 2018-05-31 CN CN201810545787.8A patent/CN108561563B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202252179U (en) * | 2011-10-14 | 2012-05-30 | 南通市电站阀门有限公司 | Stop check valve for high-pressure bellows |
| CN203146835U (en) * | 2013-03-15 | 2013-08-21 | 胡相兰 | Corrugated pipe sealing stop valve with handwheel |
| CN203348565U (en) * | 2013-07-15 | 2013-12-18 | 南通国电电站阀门有限公司 | Angle high-pressure double-acting valve |
| CN105508720A (en) * | 2016-01-14 | 2016-04-20 | 北京市阀门总厂股份有限公司 | Corrugated pipe stop valve for photo-thermal electricity generation fused salt |
| CN107314116A (en) * | 2017-06-23 | 2017-11-03 | 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 |
| CN208311476U (en) * | 2018-05-31 | 2019-01-01 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108561563B (en) | 2020-11-27 |
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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 | ||
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210222 Address after: 226500 No.1 Guodian Road, Chengnan street, Rugao City, Nantong City, Jiangsu Province Patentee after: Nantong Guodian Valve Technology Co.,Ltd. Address before: 226500 Taoyuan West Road 1, Chengnan street, Rugao City, Nantong, Jiangsu Patentee before: NANTONG STATE ELECTRIC POWER VALVE Co.,Ltd. |