CN103867739A - Straight-through type wedge gate valve - Google Patents
Straight-through type wedge gate valve Download PDFInfo
- Publication number
- CN103867739A CN103867739A CN201410131099.9A CN201410131099A CN103867739A CN 103867739 A CN103867739 A CN 103867739A CN 201410131099 A CN201410131099 A CN 201410131099A CN 103867739 A CN103867739 A CN 103867739A
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- Prior art keywords
- valve plate
- straight
- valve
- sealing
- gate 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/316—Guiding of the slide
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention relates to a straight-through type wedge gate valve which comprises a valve plate and a valve body. The valve plate is integrally formed by a valve plate framework and sealants in a vulcanization mode, a sealing portion and a basket portion are arranged on the valve plate framework, guide portions are arranged on the two sides of the valve plate, guide grooves are formed in the guide portions, the lower portions of the guide grooves are of an inclined face structure, the sealing portion on the valve plate framework comprises a first sealing belt and a second sealing belt, and the first sealing belt is composed of inclined faces at the lower ends of the guide portions, an annular arc face arranged at the bottom of the valve plate and inclined edges arranged on the two sides of the annular arc face. An arc-shaped protrusion is integrally formed on the two sides of the valve plate in a cast mode, the arc-shaped protrusion is composed of an eliminating face and a reinforced wedge face, and the crossing line of the eliminating face and the top of the arc-shaped protrusion is the second sealing belt. The valve plate is inserted in the valve body. A deformation compensation function is generated through the sealing belts to achieve the sealing effect, and then the phenomenon of leakage or corrosion caused by poor sealing of a common gate valve is avoided. In addition, the straight-through type wedge gate valve has the advantages of being light and ingenious in opening and closing, reliable in sealing, light, long in service life and convenient to replace.
Description
Technical field
The invention belongs to gate valve manufacturing technology field, particularly relate to a kind of straight-through type wedge type gate valve.
Background technique
Gate valve can be widely used in and on the fluid pipe-lines such as tap water, sewage, building, oil, chemical industry, food, medicine, light textile, electric power, boats and ships, metallurgy, energy system, blocks or regulate rate-of flow to use.Now to be generally cast steel, cast iron, stainless steel be main for gate valve on the market.Valve plate and valve body metal long-term and fluid contact and erosion corrosion, the likely secondary pollution of convection cell.Also have traditional gate valve internal diameter bottom and valve plate sealing place all fluted making it increase sealing, but so easy generation foreign material alluvial, it is unreliable to seal.Conventionally the operating mode that is applicable to not need often to open and close and keep valve plate standard-sized sheet or full cut-off is very serious to washing away of valve plate like this.If it is very difficult that valve plate damages maintenance, must, to being keeped in repair by professional producer, increase like this cycle of maintenance to client.Make it the idea that let us has produced research and development new type rubber flashboard.
Summary of the invention
The present invention provides a kind of straight-through type wedge type gate valve that switch is light and handy, seal reliable, lightweight, long service life, be convenient for changing that has for solving the technical problem existing in known technology.
The technological scheme that the present invention takes for the technical problem existing in solution known technology is:
A kind of straight-through type wedge type gate valve, comprise valve plate and valve body, described valve plate comprises that valve plate skeleton and sealed colloid vulcanize one-body molded formation, valve plate skeleton is provided with sealed department and hand basket portion, and the periphery integrated vulcanizing of described sealed department and hand basket portion is enclosed with sealed colloid, it is characterized in that: the both sides of described valve plate are provided with guide portion, which is provided with guiding groove, the bottom of described guiding groove is ramp structure, and the sealed department on described valve plate skeleton includes the first sealing strip and the second sealing strip
Wherein the first sealing strip is made up of the inclined-plane of guide portion lower end, the slant edge that is positioned at the annular arc surface of valve plate bottom and is positioned at annular arc surface both sides, described slant edge comprises arc section and straightway, wherein said straightway and above-mentioned inclined-plane are tangent, and described arc section annular arc surface is tangent;
At the arc convex of valve plate both sides integrally casting moulding, described arc convex is made up of elimination face and reinforcement wedge surface, and described elimination face is the second sealing strip with the intersection line at the top of arc convex;
Described valve body comprises valve body body, described valve body is provided with the plug-in mounting mouth for the valve plate of plug-in mounting, the bottom of corresponding plug-in mounting mouth valve body body is light bottom structure, the upper and lower part of described plug-in mounting mouth is provided with the guide protrusions of mating with valve plate both sides guide portion guiding groove, in cavity, be provided with the corresponding spacing ramp structure coordinating with inclined-plane, valve plate guide portion lower end, described guide protrusions extends to spacing inclined-plane.
The present invention can also adopt following technical measures:
The outward edge of described annular arc surface to the outer peripheral distance of valve plate is 5 to 10mm.
The height of described annular arc surface is 4 to 5mm.
Angle between the slant edge of both sides is 80 to 90 °.
The angle of described the second sealing strip and central axis is 10 ° to 12.5 °.
Described elimination face is 30 ° to 40 ° with the angle of central axis.
The hand basket port part rectangular configuration of described hand basket.
Between described hand basket and valve plate, be provided with stiffening rib.
Be provided with and lift hole in the central position of the hand basket port part rectangular configuration of hand basket.
Advantage and good effect that the present invention has are: because the present invention adopts technique scheme, adopting two sealing strips to break existing rubber sealed gate valve mainly utilizes the overall encapsulate of flashboard to realize the conventional thought of sealing, also be provided with in addition elimination face, this elimination face can be in the time that valve plate moves vertically downward, for expanding, sealed colloid reserves space, after this space turgor, also form seal action, and then can say and in the time that reality is used, have three sealing strips, therefore the present invention is produced and is become row compensating action and reach sealing effect by three sealing strips.And then it is bad to have overcome general Gate-valve sealing, the leakage of generation or corrosion phenomenon.In addition, the present invention have switch light and handy, seal reliable, lightweight, long service life, be convenient for changing remarkable advantage.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is k-k sectional view in Fig. 1;
Fig. 3 is valve board structure schematic diagram;
Fig. 4 is valve plate perspective view;
Fig. 5 is the worm's eye view of Fig. 4;
Fig. 6 is that the plan view of Fig. 4 partly cuts open figure
Fig. 7 is the right elevation of Fig. 4;
Fig. 8 is B-B sectional view in Fig. 7;
Fig. 9 is C-C sectional view in Fig. 6;
Figure 10 is E-E sectional view in Fig. 4;
Figure 11 is valve body structure schematic diagram;
Figure 12 is the stereogram of valve body.
In figure: 1, valve plate; 1-1, valve plate skeleton; 1-2, sealed colloid; 1-3, sealed department; 1-31, the first sealing strip; 1-310, annular arc surface; 1-311, slant edge; 1-3101, arc section; 1-3111, straightway; 1-32, the second sealing strip; 1-320, arc convex; 1-321, elimination face; 1-322, reinforcement wedge surface; 2, valve body; 2-1, valve body body; 2-2, plug-in mounting mouth; 2-3, guide protrusions; 2-4, spacing ramp structure; 3, hand basket portion; 4, guide portion; 4-1, guiding groove; 4-2, inclined-plane; 5, stiffening rib; 6, lift hole.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 to Figure 10, a kind of straight-through type wedge type gate valve, comprise valve plate 1 and valve body 2, described valve plate 1 comprises that valve plate skeleton 1-1 and sealed colloid 1-2 vulcanize one-body molded formation, valve plate skeleton is provided with sealed department 1-3 and hand basket portion 3, and the periphery integrated vulcanizing of described sealed department and hand basket portion is enclosed with sealed colloid, and the both sides of described valve plate are provided with guide portion 4, which is provided with guiding groove 4-1, the bottom of described guiding groove is inclined-plane 4-2 structure; The outstanding design that the design of this guiding breaks traditions, this kind of design more can increase valve plate in vertical descending stability and saturation pressure valve plate intensity.
Sealed department on described valve plate skeleton includes the first sealing strip 1-31 and the second sealing strip 1-32;
Wherein the first sealing strip is made up of the inclined-plane 4-2 of guide portion lower end, the slant edge 1-311 that is positioned at the annular arc surface 1-310 of valve plate bottom and is positioned at annular arc surface both sides, described slant edge comprises arc section 1-3101 and straightway 1-3111, wherein said straightway and above-mentioned inclined-plane are tangent, and described arc section annular arc surface is tangent.
At the arc convex 1-320 of valve plate both sides integrally casting moulding, described arc convex forms by eliminating face 1-321 and strengthening wedge surface 1-322, and described elimination face is the second sealing strip 1-32 with the intersection line at the top of arc convex; Because rubber itself is incompressible, so compressed rubber can be to peripheral expansion, this elimination face just provides bulging space for this reason, has made it to strengthen the arc surface of sealing after bulging, its arc length increases relatively, thus the side-play amount that can reduce valve closing state time, fluid impacts valve plate.
Refer to Figure 11 and Figure 12, described valve body comprises valve body body 2-1, described valve body is provided with the plug-in mounting mouth 2-2 for the valve plate of plug-in mounting, the bottom of corresponding plug-in mounting mouth valve body body is light bottom structure, the upper and lower part of described plug-in mounting mouth is provided with the guide protrusions 2-3 mating with valve plate both sides guide portion guiding groove, in cavity, be provided with the corresponding spacing ramp structure 2-4 coordinating with inclined-plane, valve plate guide portion lower end, described guide protrusions extends to spacing inclined-plane.
The present invention can also adopt following technical measures:
In said structure, preferred, the outward edge of described annular arc surface to the outer peripheral distance L 1 of valve plate is 5 to 10mm, refers to Fig. 9, thereby meets the deformation space after extruding, ensures the normal opening and closing of valve plate.
In said structure, preferred, the height h1 of described annular arc surface is 4 to 5mm; Refer to Fig. 3, in order to reach the necessary specific pressure of sealing, each section of sealing surface be according to the width of the sealing surface of self and encapsulate thickness, selects minimum compressibility and displacement amount vertically downward accordingly, tries to achieve its maximum decrement should not exceed 5mm according to the compressibility of 40% maximum.
In said structure, preferred, the included angle A 1 between the slant edge of both sides is 80 to 90 °, refers to Fig. 3, and its object is to make valve plate and valve body Central Symmetry, prevents the leakage problem causing because of cheaply.
In said structure, in order to reach better sealing effect, the included angle A 2 of described the second sealing strip and central axis is preferably 10 ° to 12.5 °, refers to Fig. 9.
In said structure, when descending in order to reduce and the friction of valve body, described elimination face is preferred with the included angle A 3 of central axis, be 30 ° to 40 °, refer to Fig. 9.
In order to improve the stability of connecting head and hand basket, the hand basket port part rectangular configuration of described hand basket, compare with existing curved surface Intersect structure the area of contact that has increased connecting head and hand basket, there is better stability, thereby solved the leakage problem causing because moving the steady valve plate causing and valve body deformation, wearing and tearing.
To make this structure be applicable to larger pressure in order using, between described hand basket and valve plate, to be provided with stiffening rib 5, so protection valve body.
There is the function of rising stem (RS.), dark bar in order to meet valve plate, be provided with and lift hole 6 in the central position of the hand basket port part rectangular configuration of hand basket.
Sealing principle of the present invention: the straight-through type taper structure that this practicality adopts, and also valve flowing channel bottom is not provided with pit.Therefore changed the mode of the simple wedge surface sealing of traditional gate valve, two elimination faces of extruding from Z-direction toward front and back, the annular arc surface that X-axis direction is down pushed toward two sections of slant edges of left and right extruding and Y direction is synchronously realized tri-dimensional sealed, both sides slant edge is because of the existence of the angle of wedge, the downward shift length of sealed type is longer, in order to reduce the wearing and tearing of slant edge encapsulate in moving process, it is generally the angle of wedge of selected angle, or the wedge surface on axis tilts to both sides with small angle taking Y-axis, the decrement that order is successively decreased.The selection of slant edge 45 ° of oblique angles that approach the most with annular arc surface trend, combine top by tapered plane and slant edge and link with slant edge plane.Tangent with annular arc surface below, complete from slant edge and turned to the handing-over of annular arc surface sealing.
Adopt technique scheme, adopting two sealing strips to break existing rubber sealed gate valve mainly utilizes the overall encapsulate of flashboard to realize the conventional thought of sealing, also be provided with in addition elimination face, this elimination face is when valve plate moves vertically downward again, for expanding, sealed colloid reserves space, after this space turgor, also form seal action, and then can say and in the time that reality is used, have three sealing strips, therefore the present invention is produced and is become row compensating action and reach sealing effect by three sealing strips.And then it is bad to have overcome general Gate-valve sealing, the leakage of generation or corrosion phenomenon.In addition, the present invention have switch light and handy, seal reliable, lightweight, long service life, be convenient for changing remarkable advantage.
The above is only to preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, every foundation technical spirit of the present invention is to any simple modification made for any of the above embodiments, and equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (9)
1. a straight-through type wedge type gate valve, comprise valve plate and valve body, described valve plate comprises that valve plate skeleton and sealed colloid vulcanize one-body molded formation, valve plate skeleton is provided with sealed department and hand basket portion, and the periphery integrated vulcanizing of described sealed department and hand basket portion is enclosed with sealed colloid, it is characterized in that: the both sides of described valve plate are provided with guide portion, which is provided with guiding groove, the bottom of described guiding groove is ramp structure, and the sealed department on described valve plate skeleton includes the first sealing strip and the second sealing strip
Wherein the first sealing strip is made up of the inclined-plane of guide portion lower end, the slant edge that is positioned at the annular arc surface of valve plate bottom and is positioned at annular arc surface both sides, described slant edge comprises arc section and straightway, wherein said straightway and above-mentioned inclined-plane are tangent, and described arc section annular arc surface is tangent;
At the arc convex of valve plate both sides integrally casting moulding, described arc convex is made up of elimination face and reinforcement wedge surface, and described elimination face is the second sealing strip with the intersection line at the top of arc convex;
Described valve body comprises valve body body, described valve body is provided with the plug-in mounting mouth for the valve plate of plug-in mounting, the bottom of corresponding plug-in mounting mouth valve body body is light bottom structure, the upper and lower part of described plug-in mounting mouth is provided with the guide protrusions of mating with valve plate both sides guide portion guiding groove, in cavity, be provided with the corresponding spacing ramp structure coordinating with inclined-plane, valve plate guide portion lower end, described guide protrusions extends to spacing inclined-plane.
2. straight-through type wedge type gate valve according to claim 1, is characterized in that: the outward edge of described annular arc surface to the outer peripheral distance of valve plate is 5 to 10mm.
3. straight-through type wedge type gate valve according to claim 1, is characterized in that: the height of described annular arc surface is 4 to 5mm.
4. straight-through type wedge type gate valve according to claim 1, is characterized in that: the angle between the slant edge of both sides is 80 to 90 °.
5. straight-through type wedge type gate valve according to claim 1, is characterized in that: the angle of described the second sealing strip and central axis is 10 ° to 12.5 °.
6. straight-through type wedge type gate valve according to claim 1, is characterized in that: described elimination face is 30 ° to 40 ° with the angle of central axis.
7. straight-through type wedge type gate valve according to claim 1, is characterized in that: the hand basket port part rectangular configuration of described hand basket.
8. straight-through type wedge type gate valve according to claim 1, is characterized in that: between described hand basket and valve plate, be provided with stiffening rib.
9. straight-through type wedge type gate valve according to claim 1, is characterized in that: be provided with and lift hole in the central position of the hand basket port part rectangular configuration of hand basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131099.9A CN103867739B (en) | 2014-04-02 | 2014-04-02 | A kind of straight-through type wedge type gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131099.9A CN103867739B (en) | 2014-04-02 | 2014-04-02 | A kind of straight-through type wedge type gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103867739A true CN103867739A (en) | 2014-06-18 |
| CN103867739B CN103867739B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410131099.9A Active CN103867739B (en) | 2014-04-02 | 2014-04-02 | A kind of straight-through type wedge type gate valve |
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| CN (1) | CN103867739B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608295A (en) * | 2018-06-14 | 2019-12-24 | 中国石油化工股份有限公司 | Gate valve body |
| US11300213B1 (en) | 2021-02-19 | 2022-04-12 | Emerson Automation Solutions Final Control US LP | Floating yoke connection |
| US11499644B2 (en) | 2020-08-25 | 2022-11-15 | Emerson Automation Solutions Final Control US LP | Sealing assembly for a knife gate valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4524950A (en) * | 1983-07-18 | 1985-06-25 | Plasti-Fab, Inc. | Open channel gate valve |
| WO2004038266A1 (en) * | 2002-10-23 | 2004-05-06 | Saint-Gobain Pam | Stop valve |
| CN102109044A (en) * | 2009-12-24 | 2011-06-29 | 泰科龙(上海)管道有限公司 | Non-rising stem gate valve |
| CN203784334U (en) * | 2014-04-02 | 2014-08-20 | 天津市永拓机械有限公司 | Straight-through wedge type gate valve |
-
2014
- 2014-04-02 CN CN201410131099.9A patent/CN103867739B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4524950A (en) * | 1983-07-18 | 1985-06-25 | Plasti-Fab, Inc. | Open channel gate valve |
| WO2004038266A1 (en) * | 2002-10-23 | 2004-05-06 | Saint-Gobain Pam | Stop valve |
| CN102109044A (en) * | 2009-12-24 | 2011-06-29 | 泰科龙(上海)管道有限公司 | Non-rising stem gate valve |
| CN203784334U (en) * | 2014-04-02 | 2014-08-20 | 天津市永拓机械有限公司 | Straight-through wedge type gate valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608295A (en) * | 2018-06-14 | 2019-12-24 | 中国石油化工股份有限公司 | Gate valve body |
| US11499644B2 (en) | 2020-08-25 | 2022-11-15 | Emerson Automation Solutions Final Control US LP | Sealing assembly for a knife gate valve |
| US11300213B1 (en) | 2021-02-19 | 2022-04-12 | Emerson Automation Solutions Final Control US LP | Floating yoke connection |
| US11603938B2 (en) | 2021-02-19 | 2023-03-14 | Emerson Automation Solutions Final Control US LP | Floating yoke connection |
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| Publication number | Publication date |
|---|---|
| CN103867739B (en) | 2016-03-02 |
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