CN108036086A - Swing check valve with operation device - Google Patents
Swing check valve with operation device Download PDFInfo
- Publication number
- CN108036086A CN108036086A CN201711492024.3A CN201711492024A CN108036086A CN 108036086 A CN108036086 A CN 108036086A CN 201711492024 A CN201711492024 A CN 201711492024A CN 108036086 A CN108036086 A CN 108036086A
- Authority
- CN
- China
- Prior art keywords
- valve
- operation device
- swing check
- check valve
- rocking arm
- 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
- 239000011435 rock Substances 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 10
- 238000010926 purge Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1821—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with a hinged or pivoted closure member
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to check-valves technical field, more particularly to the swing check valve with operation device, including swing check valve, swing check valve includes valve body, valve seat, valve deck, the rock shaft being fixedly connected with the valve body, the rocking arm being rotatablely connected with rock shaft and the flap on rocking arm, it is in the valve deck upper mounting bracket, the valve rod of operation device is threadedly coupled with the valve stem nut in operation device, and valve rod lower end is stretched into the valve body of swing check valve；Operation device actuatable valve bar pushes the rocking arm in valve body；The present invention is under special operation condition, it is possible to achieve forward direction closes valve, so that system is correctly run.
Description
Technical field
The present invention relates to check-valves technical field, and in particular to the swing check valve with operation device.
Background technology
Conventional swing check valve is by valve body, valve seat, rocking arm, rock shaft, flap, flap nut, middle flange bolt, middle method
The parts such as blue nut, valve deck form.Rotation open check-valves non-return valve play in systems limitation medium make reverse flow, rise cut-off every
Protection system and equipment are reached from effect, i.e. positive flow into of medium opens flap, flow of media, and medium reverse circulated closes valve
Door, valve switch are influenced by medium flow direction, during medium forward flow, can not close valve；, can not under the conditions of special operation condition
Realize positive close.
The content of the invention
In view of the defects of prior art, the technical problems to be solved by the invention are the Wu Fashi under the conditions of special operation condition
Existing positive closing, the influence that the purpose of the present invention is flowed to from medium, according to operating mode situation, can close valve at any time, so that
System is set correctly to run.
In order to achieve the above object, the technical scheme is that the swing check valve with operation device, it includes rotation
Opening formula check-valves, stent and operation device, swing check valve include valve body, valve seat, valve deck, shaking of being fixedly connected with the valve body
Seat, the rocking arm being rotatablely connected with rock shaft and the flap on rocking arm, it is characterised in that：Branch is installed on the valve deck top
Frame, the valve rod of operation device are threadedly coupled with the valve stem nut in operation device, and the valve of swing check valve is stretched into valve rod lower end
In vivo；Operation device driving stem pushes the rocking arm in valve body.
Preferably, the upper and lower side of the stent is equipped with positioning spigot.Concentricity when ensureing stem movement is so set.
Further, anti-rotation block is equipped between the valve rod and stent；It is for linear motion above and below valve rod, filler can be improved
Service life.
Further, the rocking arm back sets the boss for the active force that can be moved downward by the valve rod.So set
It can preferably realize the switch of valve.
Preferably, the boss is cambered surface boss.
Further, the valve deck is equipped with leak-off connection and purge hole；Leak-off connection and purge hole are respectively by valve rod and valve deck
Filler at sealing is led on the outside of valve deck.Purge hole is mainly used for the dismounting of filler, and leak-off connection ensures that leakage is zero at filler.
Further, anti-rotation structure is used between the rocking arm and flap.
Preferably, the anti-rotation structure is to cast out boss with valve flap contacts edge on rocking arm to be embedded in flap, rocking arm
The gap left between flap.In this way, when flap is closed, rocking arm can limit its be freely rotated but do not interfere its
Sealing on valve seat.
Further, the valve body and valve deck use the bolt flange structure with spiral wound gasket sealing, in middle flange
Reserved one of lip weldering, ensure that the sealing reliability of valve.
The beneficial effects of the invention are as follows：Under special operation condition, it is possible to achieve forward direction closes valve, so that system is correctly transported
OK.
Working method：Operation device is rotated by valve stem nut, and the vertical direction of valve rod along pipe centerline makees straight line fortune
It is dynamic, complete the keying of valve by being pressed downward the part of the force of rocking arm.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the side view of the present invention；
Fig. 3 is valve closing structure schematic diagram；
Fig. 4 is valve flap structure schematic diagram；
Fig. 5 is the sectional view of A-A in Fig. 4；
In figure：1st, valve body, 2, valve seat, 3, rocking arm, 4, flap, 5, valve rod, 6, valve deck, 7, stent, 8, hand gear, 9, filler,
10th, disc spring group, 11, boss, 12, middle flange stud, 13, middle flange nut, 14, upper seal support, 15, spirotallic gasket, 16, silk
It is stifled, 17, stud, 18, nut, 19, rock shaft, 20, pivot pin, 21, split pin, 22, flap nut, 23, gasket, 24, drainage tube,
25th, rotation preventing device, 26, indicator board, 27, anti-rotation block, 28, valve stem nut, 29, positioning spigot, 30, purge hole.
Embodiment
To become apparent from the object, technical solutions and advantages of the present invention, with reference to Figure of description and instantiation
It is illustrated.
Check-valves is opened in the core level-one rotation that the present invention provides a kind of operation device, using high Cv values core level swing check valve,
Stent 7 and operation device（Hand gear 8）Composition.Swing check valve with operation device is mainly used for RIS systems, valve
Normal operation can effectively determine security function expected from system execution.Swing check valve with operation device is opened only by Gao Xuan
Return valve non-return valve play in systems limitation medium make reverse flow, rise cut-off a buffer action reached protection system and equipment,
That is positive flow into of medium opens flap, flow of media, and medium reverse circulated closes valve, the shadow that valve switch is flowed to by medium
Ring, during medium forward flow, pass through bearing attachment and operation device（Hand gear）Close valve.
As shown in Figure 1, the swing check valve core component with operation device be valve body 1, valve seat 2, rocking arm 3, flap 4,
The major parts such as valve rod 5, valve deck 6, stent 7, hand gear 8 form.
Pedestal upper end is assembled with hand gear 8, and lower end is assembled with valve deck 6, and 7 upper and lower ends of stent are equipped with positioning spigot 29,
Ensure concentricity when valve rod 5 moves.Anti-rotation block is equipped between valve rod 5 and stent 7, valve rod is for linear motion about 5, Ke Yiti
The service life of high filler 9.Valve rod is sealed using filler 9；Added with disc spring group 10 at filler bolt, thus compensate for due to the use of
During bolt relaxation or filler 9 relax and cause valve to ensure that the sealing for a long time under is imitated from 9 problem of leakage of filler
Fruit.Make valve more safe and reliable, valve body 1 and valve deck 6 use the bolt flange structure sealed with spirotallic gasket 15, during it includes
Flange stud 12, middle flange and middle flange nut 13, assembly and disassembly are simple and convenient.Flange has also reserved one of lip weldering at the same time, protects
The sealing reliability of valve is demonstrate,proved.The valve deck 6 is equipped with leak-off connection 24 and purge hole 30；Leak-off connection 24 and purge hole 30 are by valve
Bar 5 leads to the outside of valve deck 6 with the filler at 6 sealing of valve deck.Purge hole 30 is mainly used for the dismounting of filler 9, and leak-off connection 24 is protected
It is zero to demonstrate,prove leakage at filler 9.
As shown in Fig. 2 rocker structure schematic diagrames, the rocking arm 3 uses casting, and anti-rotation knot is used between rocking arm 3 and flap 4
Structure, with casting out at 4 engagement edge of flap in boss insertion flap 4 when rocking arm 3 is cast, leaves certain between rocking arm 3 and flap 4
Gap, when flap 4 is closed, rocking arm 3 can limit it and be freely rotated but not interfere its sealing on valve seat 2.Important is
3 back of rocking arm is cast with the switch that by the stress boss 11 of 5 closing forces of valve rod, can realize valve.
As shown in Fig. 3 valve closing structure schematic diagrames, hand gear 8 is rotated by valve stem nut 28, and valve rod 5 is along pipeline
The vertical direction of heart line is for linear motion to complete the keying of valve by the upper part of the force for pushing rocking arm 3.Again from medium
The influence of flow direction can close at any time according to operating mode situation.
Rotation open check-valves non-return valve play in systems limitation medium make reverse flow, rise cut-off a buffer action reached guarantor
Protecting system and equipment；Hand gear 8 is rotated by valve stem nut 28, valve rod 5 is made elevating movement, and valve rod 5 is along pipe centerline
Vertical direction it is for linear motion, valve rod 5 lifts, and valve can realize normal swing check valve function, and valve rod 5 moves downward can
To realize valve positive closing.It can be closed at any time, from the influence that medium flows to according to operating mode situation so that system is correct
Operation.Valve uses forging structure, with crystal grain thinning, can optimize the performance of material, the tissue of forged material by forging
Structure and performance improve the performance of valve entirety better than founding materials.Flap 4 is sealed with valve seat 2 using 5 ° of inclined-planes, is protected
Good sealing performance is demonstrate,proved；Rotation-preventing mechanism is equipped between flap 4 and rocking arm 3, ensures that flap 4 will not rotate in use, and then
Keep stable leakproofness.The connection that hand gear 8 opens check-valves with rotation passes through 8 groups of stent 7,7 upper end of stent and hand gear
Dress, lower end are assembled with valve deck 6, and upper and lower side is equipped with positioning spigot 29, ensure concentricity when valve rod 5 moves.Valve rod 5 and stent 7
Between be equipped with anti-rotation block, valve rod is for linear motion about 5, can improve the service life of filler 9.Ensure zero leakage at filler 9,
Operate 8 handwheel of hand gear, valve rod 5 moved up and down, unclamp, compress rocking arm 3 and flap component realizes the switch of valve, with up to
, according to operating mode situation, it can at any time close to from the influence that medium flows to, meet the seal request of standard.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, this
Field technology personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (9)
1. the swing check valve with operation device, including swing check valve, swing check valve includes valve body, valve seat, valve
The rocking arm and the flap on rocking arm for rock shaft and the rock shaft rotation connection cover, being fixedly connected with the valve body, it is characterised in that：
In the valve deck upper mounting bracket, the valve rod of operation device is threadedly coupled with the valve stem nut in operation device, valve rod lower end
Stretch into the valve body of swing check valve；Operation device driving stem pushes the rocking arm in valve body.
2. the swing check valve with operation device according to claim 1, it is characterised in that：The upper and lower side of the stent is equal
Equipped with positioning spigot.
3. the swing check valve with operation device according to claim 1, it is characterised in that：Set between the valve rod and stent
There is anti-rotation block.
4. the swing check valve with operation device according to claim 1, it is characterised in that：The rocking arm back is set can
The boss of the active force moved downward by the valve rod.
5. the swing check valve with operation device according to claim 4, it is characterised in that：The boss is convex for cambered surface
Platform.
6. the swing check valve with operation device according to claim 1, it is characterised in that：The valve deck, which is equipped with, draws leakage
Pipe and purge hole；Leak-off connection and purge hole are led on the outside of valve deck by the filler of valve rod and valve bonnet seal respectively.
7. the swing check valve with operation device according to claim 1, it is characterised in that：Between the rocking arm and flap
Using anti-rotation structure.
8. the swing check valve with operation device according to claim 7, it is characterised in that：The anti-rotation structure is to shake
Cast out on arm with valve flap contacts edge in boss insertion flap, the gap left between rocking arm and flap.
9. the swing check valve with operation device according to claim 1, it is characterised in that：The valve body and valve deck use
Bolt flange structure with spirotallic gasket sealing, one of lip weldering is reserved in middle flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711492024.3A CN108036086A (en) | 2017-12-30 | 2017-12-30 | Swing check valve with operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711492024.3A CN108036086A (en) | 2017-12-30 | 2017-12-30 | Swing check valve with operation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108036086A true CN108036086A (en) | 2018-05-15 |
Family
ID=62098635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711492024.3A Pending CN108036086A (en) | 2017-12-30 | 2017-12-30 | Swing check valve with operation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108036086A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547980A (en) * | 2018-07-04 | 2018-09-18 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve with operating device |
| CN112855998A (en) * | 2021-02-05 | 2021-05-28 | 西南石油大学 | Visual locking swing check valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652665A (en) * | 1979-10-06 | 1981-05-11 | Mitsubishi Heavy Ind Ltd | Sluice and swing check valve |
| CN202252180U (en) * | 2011-10-08 | 2012-05-30 | 浙江万士通阀门有限公司 | Oblique angle type stoppage check valve |
| CN102620015A (en) * | 2010-12-30 | 2012-08-01 | 大连大高阀门有限公司 | Nuclear class 1 large caliber forged steel full circulation high-Cv value swing check valve |
| CN103438250A (en) * | 2013-05-03 | 2013-12-11 | 无锡富盛阀业有限公司 | Swing check valve |
| CN204944775U (en) * | 2015-09-11 | 2016-01-06 | 北京冶核技术发展有限责任公司 | Gate valve for nuclear power plant online lumen pressurization test unit |
| CN205937999U (en) * | 2016-08-18 | 2017-02-08 | 浙江宝龙阀门制造有限公司 | Novel swing check valve |
| CN207906523U (en) * | 2017-12-30 | 2018-09-25 | 大连大高阀门股份有限公司 | A kind of swing check valve with operating device |
-
2017
- 2017-12-30 CN CN201711492024.3A patent/CN108036086A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652665A (en) * | 1979-10-06 | 1981-05-11 | Mitsubishi Heavy Ind Ltd | Sluice and swing check valve |
| CN102620015A (en) * | 2010-12-30 | 2012-08-01 | 大连大高阀门有限公司 | Nuclear class 1 large caliber forged steel full circulation high-Cv value swing check valve |
| CN202252180U (en) * | 2011-10-08 | 2012-05-30 | 浙江万士通阀门有限公司 | Oblique angle type stoppage check valve |
| CN103438250A (en) * | 2013-05-03 | 2013-12-11 | 无锡富盛阀业有限公司 | Swing check valve |
| CN204944775U (en) * | 2015-09-11 | 2016-01-06 | 北京冶核技术发展有限责任公司 | Gate valve for nuclear power plant online lumen pressurization test unit |
| CN205937999U (en) * | 2016-08-18 | 2017-02-08 | 浙江宝龙阀门制造有限公司 | Novel swing check valve |
| CN207906523U (en) * | 2017-12-30 | 2018-09-25 | 大连大高阀门股份有限公司 | A kind of swing check valve with operating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547980A (en) * | 2018-07-04 | 2018-09-18 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve with operating device |
| CN112855998A (en) * | 2021-02-05 | 2021-05-28 | 西南石油大学 | Visual locking swing check valve |
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