CN2403961Y - Parallel plate valve - Google Patents
Parallel plate valve Download PDFInfo
- Publication number
- CN2403961Y CN2403961Y CN 00200750 CN00200750U CN2403961Y CN 2403961 Y CN2403961 Y CN 2403961Y CN 00200750 CN00200750 CN 00200750 CN 00200750 U CN00200750 U CN 00200750U CN 2403961 Y CN2403961 Y CN 2403961Y
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- valve
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- valve plate
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Abstract
The utility model relates to a parallel plate valve. The utility model is mainly composed of a hand wheel, a valve rod and a valve body, wherein, the valve body is mainly composed of a valve plate body, aflange seat and a middle flange; the valve plate body and the flange seat present a whole structure; the valve plate body is provided with a valve plate cavity; the flange seat is provided with a through hole; the valve plate cavity is communicates with the through hole of the flange seat; the valve plate is positioned in the valve plate cavity; the lower end of the valve plate is provided with a circular hole; the upper part of the valve plate is provided with a valve rod hole; the valve rod is positioned in the valve rod hole; the valve rod is matched with a valve rod nut arranged on the valve plate; the outer end of the valve rod is provided with the hand wheel; the valve plate body is sealed by an upper press cover; the middle flange is fixedly matched with the flange seat. The utility model has the advantages of small size, corrosion resistance and good air tightness.
Description
The utility model is the special valve of using in a kind of pipeline, belongs to the pipe fitting valve type.
At present, in some relatively large gases or liquid transfer pipeline,, be provided for cutting off the valve of pipeline for fixing a breakdown, keep in repair the foul in pipeline or the cleaning pipeline easily essentially.The valve of using in the existing pipeline has plug valve, ball valve or gate valve etc., and the valve of these kinds all can play the function of gas communication in the blocking-up pipeline.Yet they all have problems again, because up big and down small, and the gas in the pipeline has certain pressure as: plug valve, therefore in valve closing blocking-up pipeline during gas communication, are easy to generate the poorly sealed problem of leaking gas of causing; The ball valve sealing is better, but the cost height, the expense costliness; Though the gate valve cost is low, the sealing surface of valve is directly exposed in the pipeline, is subject in the pipeline in the gas that impurities pollutes or by mordant gas attack, causes valve gas leakage or damages.Existing a kind of gas valve, though sealing and corrosion resistance are better, but still it is big to show slightly volume, and when poppet, the valve rod that drives the valve plate rising is constantly overhanging, makes the operator use effort.
The purpose of this utility model is a kind of Parallel plate valve of design, and it is rational in infrastructure, and volume is little, and is easy to operate, and has better seal and corrosion resistance.
The designed Parallel plate valve of the utility model is mainly by handwheel, valve rod, valve body is formed, said valve body is mainly by the valve plate body, flange seat and middle flange are formed, valve plate body and flange seat are structure as a whole, the valve plate body has the valve plate chamber of hollow, flange seat has the through hole that can connect with pipeline, the valve plate chamber is communicated with the through hole of flange seat, valve plate is positioned at the valve plate chamber, the lower end of valve plate has the circular hole with the through hole same apertures of flange seat, the top of valve plate has valve rod hole, valve rod is positioned at valve rod hole, is threaded on the valve rod, and the upper end of valve rod hole is equipped with Stem Mut, Stem Mut and valve plate are fixedly installed togather, valve rod and Stem Mut screw-thread fit, valve rod are stretched out the external end of valve plate and are installed with handwheel, and the upper end of valve plate body is sealed by upper press cover; Have the valve seat cover that is used for fixing valve plate in the through hole of flange seat, middle flange and flange seat secure fit are fixed the end that valve plate is arranged in flange seat by valve seat cover and middle flange.
Be to strengthen the tightness of valve, between the valve seat cover of the designed Parallel plate valve of the utility model and flange seat, be provided with butterfly spring.
In order to simplify structure, reduce link, in the designed Parallel plate valve of the utility model, the upper end of valve plate has connecting groove, and Stem Mut is square toes or six-sided nut, and the Stem Mut side direction slips in the connecting groove of valve plate, is fixedly installed togather with valve plate.
The aperture of the circular hole of the through hole of the flange seat of the Parallel plate valve that the utility model is designed and valve plate lower end is in the 50-600mm scope.
For strengthening sealing, have seal washer between the valve body of the Parallel plate valve that the utility model is designed and the upper press cover.
The flange seat center line of the Parallel plate valve that the utility model is designed and the plate face of valve plate are perpendicular.
The designed Parallel plate valve of the utility model between middle flange and valve seat cover and end face that valve plate contact, valve seat overlaps and the flange seat surface of contact between have sealing gasket between flange and the flange seat surface of contact in reaching.In order to cut down finished cost, flange and gasket structure in the designed Parallel plate valve of the utility model adopts can reduce machining accuracy greatly.
The utility model is installed in valve body in the pipeline by flange seat in the Parallel plate valve and middle flange in use, and the through hole in the flange seat and the through hole of pipeline link together.The circular hole of valve plate lower end is concordant with the through hole in the flange seat in the valve body in the ordinary course of things, and promptly gas in the pipeline or liquid can successfully circulate at the Parallel plate valve place, and is convenient to the ball float cleaning technology that pipeline adopts the advanced person.When need keep in repair or clear up pipeline, rotation valve rod, because valve rod and Stem Mut screw-thread fit, Stem Mut is installed on again on the valve plate, and therefore when rotation valve rod, Stem Mut moves down, the drive valve plate moves down, the circular hole end of valve plate moves in the valve plate chamber of valve plate body bottom, and the plate face of valve plate is blocked pipeline, can keep in repair or clear up.To after maintenance or cleaning out, the backward rotation valve rod moves on the Stem Mut, drives valve plate and moves up, and makes the circular hole of valve plate lower end concordant with the through hole in the pipeline, and the pipeline recovery is unimpeded.
The advantage of the Parallel plate valve that the utility model is designed is:
1. tightness is good.Since the both sides of valve plate bottom and valve seat cover and in be provided with sealing gasket between the end face of flange applying, butterfly spring acts on valve seat and puts in addition, sealing gasket and valve plate are fitted tightly, gas or liquid are difficult for leaking, also be provided with sealing gasket at the junction plane place of valve seat cover and middle flange and flange seat in addition, form multiple-sealedly, the tightness of valve is strengthened.
2. corrosion-resistant, the life-span is long.Parallel plate valve in use, generally speaking, only the hole wall of the circular hole of valve plate bottom contacts with gas or liquid, and the other parts of valve plate all do not contact with gas or liquid, so valve plate and sealing gasket are not perishable.And when Parallel plate valve is closed, the sealing plate face of valve plate both sides contacts with gas or liquid, may be infected with some impurity, but when Parallel plate valve is opened, special structural design is struck off the impurity of the sealing plate face of valve plate again, has reduced the chance that the plate face is corroded greatly.Valve rod is only done the original place and is rotated in valve body, not overhanging, therefore valve rod is difficult for contaminated, corrosion, increase the service life in use for some time, the sealing gasket of valve plate both sides may be out of shape the generation gap, yet the butterfly spring between valve seat cover and the flange has certain pretightening force, move the gap that produces with compensation with promoting the valve seat cover, therefore can keep the joint place of sealing gasket and valve plate not produce the gas leakage phenomenon of leakage effectively for a long time, make the long service life of valve, improve 3～4 times than the life-span of existing valve
3. help cleaning.Because the diameter of the circular hole of valve plate bottom is identical with the diameter of flange seat through hole, its joint is level and smooth, and ball float can not influence the removing of foreign material smoothly by the Parallel plate valve place during therefore with the foreign material in the ball float cleaning pipeline.
4. little, the easy manufacturing of volume, cost is low.The compact structure of Parallel plate valve, most component are manufactured by common material, with the pipeline flange connecting be split-type structural, by flange seat and in flange constitute, therefore reduced the requirement of machining accuracy, easy to manufacture, its cost reduces 50% than ball valve.
The designed Parallel plate valve of the utility model is mainly used in the gas pipings such as coal gas or natural gas, also is applicable in the liquid lines such as oil field oil transportation or other water delivery, especially applicable in the bigger conveyance conduit of caliber.
Fig. 1 is the structural drawing of the designed Parallel plate valve of the utility model.
Fig. 2 is the profile schematic representation of Fig. 1.
Fig. 3 is valve plate and a Stem Mut connection diagram among Fig. 1.
In conjunction with specific embodiments the mode of execution and the effect of the designed Parallel plate valve of the utility model is described further with reference to the accompanying drawings below.
Embodiment
Parallel plate valve shown in Fig. 1,2 mainly is made up of handwheel 17, valve rod 16 and valve body 2, and valve body 2 is made up of flange seat 21, valve plate body 22 and middle flange 6, and flange seat 21 has through hole 26, and the aperture of through hole 26 is identical with the caliber of the delivery line of outside.Flange seat 21 with the valve plate body 22 that has hollow in the radial direction of through hole, valve plate body 22 is an overall structure with flange seat 21, intersects in length and breadth; The centre of valve plate body 22 has valve plate chamber 27, and valve plate chamber 27 is communicated with the through hole 26 of flange seat 21.Valve seat cover 10 is installed in the through hole 26, and the internal diameter of valve seat cover 10 is identical with the aperture of through hole 26.Butterfly spring 7 is installed between flange seat 21 and the valve seat cover 10, has pretightening force.At the position that the outer ring and the flange seat of valve seat cover 10 fits O shape sealing gasket being installed is sealed.In flange 6 fixing by stud bolt 5 and hexagon nut 4 with flange seat 21, O shape sealing gasket 8 is installed between middle flange 6 and the flange seat 21 is sealed, middle flange 6 with the aperture of through hole identical with the aperture of the through hole 26 of flange seat 21.Valve plate 12 lower ends have the circular hole 24 with through hole 26 same apertures, and the upper end has connecting groove 3.In the valve plate chamber 27 that valve plate 12 inserts in the valve plate body 22, the end face of the both sides of valve plate 12 lower ends and valve seat cover 10 and middle flange 6 compresses, circular hole 24 is mutually concordant with the through hole that the hole of valve seat cover 10 reaches middle flange 6, flange 6 compresses the joint place with valve plate 12 sealing gasket 9 is installed in valve seat cover 10 reaches, to strengthen sealability.The top of valve plate 12 has valve rod hole 28, on the valve plate 12 of valve rod 16 upper ends Stem Mut 19 is installed, and the tapped hole of Stem Mut 19 and valve rod hole 28 are positioned on the same center line.Be threaded on the valve rod 16, valve rod 16 matches with Stem Mut 19, and valve rod 16 is positioned at valve rod hole 28.Stem Mut 19 is a square-head nut, and as shown in Figure 3, wherein A figure is the plan view that Stem Mut 19 cooperates with valve plate 12, B figure is a side view, C figure is a plan view, and Stem Mut 19 is packed into from the side of valve plate 12 in the connecting groove 3, makes Stem Mut 19 and valve plate 12 connections together.After valve plate 12 inserts valve plate chambeies 27, be subjected to 22 stopping of madial wall of valve plate body and fix, can not rotate.The end that valve rod 16 stretches out valve body 2 one ends is equipped with handwheel 17, the upper end of valve plate body 22 is by upper press cover 13 sealings, have seal washer 18 between upper press cover 13 and valve plate body 22 upper-end surfaces, by bolt 29 upper press cover 13 and valve plate body 22 are fixedly installed togather, handwheel 17 can drive valve rod 16 and rotate.Only original place rotation in upper press cover 13 and valve body 2 of valve rod 16, not upper and lower moving.The aperture of this Parallel plate valve through hole that the lower end forms is 200mm, can be that conveying gas or the liquid line of 200mm is connected with the caliber in outer.
In use, by rotation hand wheel 17 valve rod 16 is rotated, the Stem Mut 19 that is mated moves and just can drive valve plate 12 and move up and down, and with the conducting and the blocking-up of pilot line, uses more convenient.In use for some time, when sealing gasket 9 distortion or wearing and tearing make valve plate 12 both sides produce the gap, because butterfly spring 7 has certain pretightening force, valve seat cover 10 is passed, the gap that compensation produces can keep valve that good air tightness is arranged for a long time, and working life is longer.Because valve rod 16 original places rotations do not stretch out, so volume is little, and is easy to operate, can not reduce labor intensity because of valve rod 16 extends too high in addition assistant tool compounding practice.This Parallel plate valve can be widely used in gas or the liquid transmission pipeline, is comparatively ideal pipeline special valve.
Claims (7)
1. Parallel plate valve, mainly by handwheel, valve rod, valve body is formed, it is characterized in that: said valve body is mainly by the valve plate body, flange seat and middle flange are formed, valve plate body and flange seat are structure as a whole, the valve plate body has the valve plate chamber of hollow, flange seat has the through hole that can connect with pipeline, the valve plate chamber is communicated with the through hole of flange seat, valve plate is positioned at the valve plate chamber, the lower end of valve plate has the circular hole with the through hole same apertures of flange seat, and the top of valve plate has valve rod hole, and valve rod is positioned at valve rod hole, be threaded on the valve rod, the upper end of valve rod hole is equipped with Stem Mut, and Stem Mut and valve plate are fixedly installed togather, valve rod and Stem Mut screw-thread fit, valve rod stretches out the external end of valve plate and is installed with handwheel, and the upper end of valve plate body is sealed by upper press cover; Have the valve seat cover that is used for fixing valve plate in the through hole of flange seat, middle flange and flange seat secure fit are fixed the end that valve plate is arranged in flange seat by valve seat cover and middle flange.
2. Parallel plate valve according to claim 1, its feature also is: be provided with butterfly spring between valve seat cover and the flange seat.
3. Parallel plate valve according to claim 1, its feature also is: the upper end of valve plate has connecting groove, and Stem Mut is square toes or six-sided nut, and the Stem Mut side direction slips in the connecting groove of valve plate, is fixedly installed togather with valve plate.
4. Parallel plate valve according to claim 1, its feature also is: the aperture of the circular hole of the through hole of flange seat and valve plate lower end is in 50～600mm scope.
5. Parallel plate valve according to claim 1, its feature also is: have seal washer between valve body and the upper press cover.
6. Parallel plate valve according to claim 1, its feature also is: the plate face of flange seat center line and valve plate is perpendicular.
7. Parallel plate valve according to claim 1, its feature also is: between middle flange and valve seat cover and end face that valve plate contact, valve seat overlaps and the flange seat surface of contact between have sealing gasket between flange and the flange seat surface of contact in reaching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00200750 CN2403961Y (en) | 2000-01-25 | 2000-01-25 | Parallel plate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00200750 CN2403961Y (en) | 2000-01-25 | 2000-01-25 | Parallel plate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2403961Y true CN2403961Y (en) | 2000-11-01 |
Family
ID=33570139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00200750 Expired - Fee Related CN2403961Y (en) | 2000-01-25 | 2000-01-25 | Parallel plate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2403961Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090274A (en) * | 2016-08-17 | 2016-11-09 | 中国重型机械研究院股份公司 | The sealing valve that a kind of high temperature powder is suitable for |
| CN111344529A (en) * | 2017-11-09 | 2020-06-26 | Tmt出铁测量技术有限公司 | Cut-off slide valve |
-
2000
- 2000-01-25 CN CN 00200750 patent/CN2403961Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090274A (en) * | 2016-08-17 | 2016-11-09 | 中国重型机械研究院股份公司 | The sealing valve that a kind of high temperature powder is suitable for |
| CN106090274B (en) * | 2016-08-17 | 2018-07-20 | 中国重型机械研究院股份公司 | A kind of sealing valve that high temperature powder is applicable |
| CN111344529A (en) * | 2017-11-09 | 2020-06-26 | Tmt出铁测量技术有限公司 | Cut-off slide valve |
| US11306827B2 (en) | 2017-11-09 | 2022-04-19 | Tmt Tapping-Measuring-Technology Sarl | Slide valve |
| CN111344529B (en) * | 2017-11-09 | 2022-07-12 | Tmt出铁测量技术有限公司 | Cut-off slide valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |