CN101672374A - Wedge-caulking dual-seal differential swing double disc valve - Google Patents
Wedge-caulking dual-seal differential swing double disc valve Download PDFInfo
- Publication number
- CN101672374A CN101672374A CN200810013166A CN200810013166A CN101672374A CN 101672374 A CN101672374 A CN 101672374A CN 200810013166 A CN200810013166 A CN 200810013166A CN 200810013166 A CN200810013166 A CN 200810013166A CN 101672374 A CN101672374 A CN 101672374A
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- valve
- flashboard
- valve rod
- wedge
- caulking
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Abstract
The invention discloses a wedge-caulking dual-seal differential swing double disc valve, which comprises a valve body, a valve cover, a valve seat, a valve rod, a valve support, a valve rod lifting nut, a hand wheel, left and right discs, a positioning guide rod and a wedge, wherein the valve rod is arranged in an inner cavity enclosed by the valve support, the valve cover and the valve body; andthe upper end of the valve rod is screwed with the valve rod lifting nut, and the lower end of the valve rod is connected with the left and right two valve discs. The wedge-caulking dual-seal differential swing double disc valve is characterized in that the upper ends of the left and right discs are provided with step grooves with a preset height difference. Wedge chutes and semi-circular guide grooves are symmetrically arranged above and under the central parts of the left and right discs and the through holes in the discs respectively. The positioning guide rod is fixedly connected at the bottom end of the inner cavity of the valve body; the wedge is arranged on the top end of the positioning guide rod; the left and right discs are combined correspondingly; after left and right discs arecombined, the step grooves on the upper end are in fit connection with a valve rod boss at the lower end of the valve rod; the left and right discs are sleeved on the combined body of the wedge and the positioning guide rode through the wedge chutes and the guide grooves on the inner side; and the outer sides of the left and right discs are in sealing fit with the valve seat in the valve body. The valve has the advantages of small volume, light weight, flexible opening, reliable sealing and long service life.
Description
Technical field
The present invention relates to valve, particularly relate to oilfield gas injection oil recovery pipeline with a kind of Wedge-caulking dual-seal differential swing double disc valve.
Background technique
In oilfield gas injection wellhead for production and oil transportation (gas) process, valve on its conveyance conduit is used for the conveying of crude oil and rock gas is controlled, at present the valve that uses mostly is two kinds of ball valve and gate valves, its deficiency is that valve is all impaired because of the opening-closing process sealing surface, lose sealability too early, influenced by working environment and sealing surface generation stress deformation, can not thorough seal cause poorly sealed, in transferring oil (gas) process, occur running, emit, drip, leak phenomenon, bring hidden danger for environment and safety, serious phenomenon also can occur tightening, can't close once more or open, stopping production to change causes damage.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of opening/shutting mode that adopts existing flashboard valve, has and opens flexibly, and sealing is reliable, long service life, the Wedge-caulking dual-seal differential swing double disc valve of safety.
The technological scheme that adopts is:
The Wedge-caulking dual-seal differential swing double disc valve comprises valve body, valve gap, valve seat, valve rod, valve support, valve rod lifting nut, handwheel, left flashboard, right flashboard, location guide and voussoir.Valve seat is housed in the valve body, the valve body upper end connects valve gap, the valve gap upper end connects the valve support, the inner chamber that valve support, valve gap and valve body constitute is equipped with valve rod, the valve rod upper end is installed with the valve rod lifting nut, the valve rod lower end connects left and right double-flashboard, and turn is contained in the handwheel on the valve rod lifting nut, the left and right double-flashboard in valve rod lifting nut actuate valve stem lower end.The upper end of described left flashboard and right flashboard is equipped with step groove, under the left flashboard under rank groove height and the right flashboard rank groove height inequality, set a height difference.The left side flashboard and the middle part of right flashboard and the upper and lower of flashboard through hole are provided with voussoir chute and semi-circular guide grooves respectively symmetrically.Described location guide is fixedly connected on the body cavity bottom, voussoir places the location guide top, the left flashboard and the right flashboard correspondence that are respectively equipped with step groove, voussoir chute and semicircle guide groove are combined, left flashboard after the combination is connected with valve rod lower end valve rod boss coupling with right flashboard upper end step groove, the left flashboard of combination and right flashboard are sleeved on the assemblying body of voussoir and location guide by the voussoir chute and the guide groove of inboard, and the outside of left flashboard and right flashboard cooperates with the both sides valve base sealing respectively.
Under the above-mentioned left flashboard under rank groove height and the right flashboard setting height difference of rank groove height be 2mm.
Above-mentioned valve rod upper end is provided with upper shield, and upper shield is threaded with the valve rod lifting nut.
It is little, in light weight that the present invention has a volume, opens flexibly, and sealing is reliable, and long advantage of life-span can be used on the pipeline of petrochemical industry conveyance fluid medium safely.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of left and right flashboard combination.
Fig. 3 is the wedge structure schematic representation.
Fig. 4 is the side view of Fig. 3.
Embodiment
The Wedge-caulking dual-seal differential swing double disc valve comprises valve body 1, valve gap 8, valve seat 6, valve rod 7, valve support 9, valve rod lifting nut 11, handwheel 12, left flashboard 2, right flashboard 3, location guide 4 and voussoir 5.Valve seat 6 is housed in the valve body 1, valve body 1 upper end connects valve gap 8, valve gap 8 upper ends connect valve support 9, the inner chamber that valve support 9, valve gap 8 and valve body 1 constitute is equipped with valve rod 7, valve rod 7 upper ends are installed with valve rod lifting nut 11, valve rod 7 lower ends connect left and right double- flashboard 2,3, and turn is contained in the handwheel 12 on the valve rod lifting nut 11, the left and right double- flashboard 2,3 in valve rod lifting nut 11 actuate valve stem 7 lower ends.The upper end of described left flashboard 2 and right flashboard 3 is equipped with step groove 13, and 2 times rank grooves of left flashboard, 14 height and 3 times rank grooves 15 of right flashboard are low, its height difference H=2mm (see figure 2).The left side flashboard 2 and the middle part of right flashboard 3 and the upper and lower of flashboard through hole 18 are provided with voussoir chute 16 and semi-circular guide grooves 17 (see figure 2)s respectively symmetrically.Described location guide 4 is fixedly connected on valve body 1 inner chamber bottom, voussoir 5 places location guide 4 tops, the left flashboard 2 and right flashboard 3 correspondences that are respectively equipped with step groove 13, voussoir chute 16 and semicircle guide groove 17 are combined, left flashboard 2 after the combination is connected with valve rod 7 lower end valve rod boss 10 couplings with right flashboard 3 upper end step groove 13, the left flashboard 2 of combination and right flashboard 3 are sleeved on the assemblying body of voussoir 5 and location guide 4 by the voussoir chute 16 and the guide groove 17 of inboard, and the outside of left flashboard 2 and right flashboard 3 is sealed and matched with both sides valve seat 6 respectively.Described valve rod lifting nut 11 tops connect a upper shield 19, constitute the Wedge-caulking dual-seal differential swing double disc valve.
Working principle:
During valve closing, handwheel 12 drives 11 turns of valve rod lifting nut, valve rod lifting nut 11 actuate valve stem 7 and connected left and right flashboard 2,3 are descending, when left and right flashboard 2,3 when location guide 4 comes downwards to closed position, location guide 4 contacts with voussoir 5, makes voussoir 5 produce a upwards thrust, under the effect on its inclined-plane, make left and right flashboard 2,3 parallel to both sides spreading and valve seat 6 deadends, double-flashboard is sealed valve body 1 inlet side and go out to hold the double-sealing of medium simultaneously.
During valve opening, handwheel 12 drives valve rod lifting nut 11 rotary valve bars 7 and a connected left side, right flashboard 2,3 is up, when up beginning, valve rod boss 10 at first will be mentioned masterpiece and will be used on low rank, the lower-left groove 14 of left flashboard 2 overhead heights, in driving the up process of flashboard, cause a left side, right one on flashboard is differential, discharged the wedging power of 5 pairs of both sides flashboards of voussoir, revolve and open nimbly and freely, work as a left side, right flashboard 2,3 when location guide 4 is up to the enable possition, voussoir 5 tensions are eliminated, and this moment is left, flashboard through hole 18 on the right flashboard communicates with valve body 1 both sides valve pocket.
Claims (3)
1, Wedge-caulking dual-seal differential swing double disc valve comprises valve body (1), valve gap (8), valve seat (6), valve rod (7), valve support (9), valve rod lifting nut (11), handwheel (12), left flashboard (2), right flashboard (3), location guide (4) and voussoir (5); Valve seat (6) is housed in the valve body (1), valve body (1) upper end connects valve gap (8), valve gap (8) upper end connects valve support (9), the inner chamber that valve support (9), valve gap (8) and valve body (1) constitute is equipped with valve rod (7), valve rod (7) upper end is installed with valve rod lifting nut (11), valve rod (7) lower end connects left and right double-flashboard (2), (3), and turn is contained in the handwheel (12) on the valve rod lifting nut (11), the left and right double-flashboard in valve rod lifting nut (11) actuate valve stem (7) lower end (2), (3); The upper end that it is characterized in that described left flashboard (2) and right flashboard (3) is equipped with step groove (13), and rank grooves (15) are highly inequality down for rank grooves (14) height and right flashboard (3) under the left flashboard (2), set a height difference H; The left side flashboard (2) and the middle part of right flashboard (3) and the upper and lower of flashboard through hole (18) are provided with voussoir chute (16) and semi-circular guide grooves (17) respectively symmetrically; Location guide (4) is fixedly connected on valve body (1) inner chamber bottom, voussoir (5) places location guide (4) top, to be respectively equipped with step groove (13), the left flashboard (2) of voussoir chute (16) and semicircle guide groove (17) and right flashboard (3) correspondence are combined, left flashboard (2) after the combination is connected with valve rod (7) lower end valve rod boss (10) coupling with right flashboard (3) upper end step groove (13), the left flashboard (2) of combination and right flashboard (3) are sleeved on the assemblying body of voussoir (5) and location guide (4) by inboard voussoir chute (16) and guide groove (17), and the outside of left flashboard (2) and right flashboard (3) is sealed and matched with both sides valve seat (6) respectively.
2, Wedge-caulking dual-seal differential swing double disc valve according to claim 1, it is characterized in that height of rank groove (14) under the described left flashboard (2) and right flashboard (2) down rank grooves (15) setting height difference H highly be 2mm.
3, Wedge-caulking dual-seal differential swing double disc valve according to claim 1 is characterized in that described valve rod (7) upper end is provided with upper shield (19), and upper shield (19) is threaded with valve rod lifting nut (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810013166A CN101672374A (en) | 2008-09-11 | 2008-09-11 | Wedge-caulking dual-seal differential swing double disc valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810013166A CN101672374A (en) | 2008-09-11 | 2008-09-11 | Wedge-caulking dual-seal differential swing double disc valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101672374A true CN101672374A (en) | 2010-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810013166A Pending CN101672374A (en) | 2008-09-11 | 2008-09-11 | Wedge-caulking dual-seal differential swing double disc valve |
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| Country | Link |
|---|---|
| CN (1) | CN101672374A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261487A (en) * | 2011-05-07 | 2011-11-30 | 浙江万龙机械有限公司 | Valve rod lifting track ball valve |
| CN106481833A (en) * | 2015-08-25 | 2017-03-08 | 中国石油天然气集团公司 | A kind of high temperature cut-off valve hard sealing structure |
| WO2020034599A1 (en) * | 2018-08-16 | 2020-02-20 | 北京航天动力研究所 | Double-disc gate valve and use |
| CN117108772A (en) * | 2023-10-20 | 2023-11-24 | 杭州耐特阀门股份有限公司 | Zero leakage flat gate valve |
-
2008
- 2008-09-11 CN CN200810013166A patent/CN101672374A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261487A (en) * | 2011-05-07 | 2011-11-30 | 浙江万龙机械有限公司 | Valve rod lifting track ball valve |
| CN106481833A (en) * | 2015-08-25 | 2017-03-08 | 中国石油天然气集团公司 | A kind of high temperature cut-off valve hard sealing structure |
| CN106481833B (en) * | 2015-08-25 | 2019-05-07 | 中国石油天然气集团公司 | A kind of high temperature cut-off valve hard sealing structure |
| WO2020034599A1 (en) * | 2018-08-16 | 2020-02-20 | 北京航天动力研究所 | Double-disc gate valve and use |
| US11131395B2 (en) | 2018-08-16 | 2021-09-28 | Beijing Aerospace Propulsion Institute | Double-plate gate valve and use of the same |
| CN117108772A (en) * | 2023-10-20 | 2023-11-24 | 杭州耐特阀门股份有限公司 | Zero leakage flat gate valve |
| CN117108772B (en) * | 2023-10-20 | 2024-01-12 | 杭州耐特阀门股份有限公司 | Zero leakage flat gate valve |
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| PB01 | Publication | ||
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Open date: 20100317 |