CN109519559A - Knife gate valve - Google Patents
Knife gate valve Download PDFInfo
- Publication number
- CN109519559A CN109519559A CN201811550322.8A CN201811550322A CN109519559A CN 109519559 A CN109519559 A CN 109519559A CN 201811550322 A CN201811550322 A CN 201811550322A CN 109519559 A CN109519559 A CN 109519559A
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- CN
- China
- Prior art keywords
- valve plate
- valve body
- valve
- seal groove
- sealing
- 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
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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
- 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
- F16K3/0227—Packings
-
- 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
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve 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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
The present invention relates to a kind of knife gate valves, including valve body, valve plate and executing agency, valve body is provided with the runner for fluid flowing, executing agency is installed on above valve body, valve plate lifting in the case where executing agency drives constitutes the cutting or unlatching of runner, valve body is provided with the lift span for valve plate lifting, the hole wall of lift span offers the upper seal groove towards valve plate with respect to the two sides of valve plate thickness direction respectively, it is provided with and is compressed between seal groove and valve plate and lippacking compatible with valve plate width in each upper seal groove, the rectangular sealing space of the side Formation cross-section of upper seal groove and valve plate, lippacking is elastic material and section is in X-shape, each end of the X-shaped of lippacking is corresponding with each corner of the rectangle of sealing space or neighbouring position respectively and respectively constitutes sealing cooperation, it is set between the X-shaped end of adjacent lippacking It is equipped with the extruding space in inner concavity.Using the above scheme, the knife gate valve that the present invention provides a kind of good seal performance, is easily installed.
Description
Technical field
The present invention relates to valve fields, and in particular to a kind of knife gate valve.
Background technique
Valve is for being opened and closed pipeline, control flow direction, the parameter (temperature, pressure and flow) of regulation and control pumped (conveying) medium
Pipeline fittings.And knife gate valve is then the valve that a kind of opening and closing element is valve plate, the direction of motion and flow direction of valve plate are perpendicular,
Medium can be cut off with the knife-edge valve plate of cutting fiber material by relying on.
Traditional knife gate valve includes valve body, valve plate and executing agency, and valve body is provided with the runner for fluid flowing, executes machine
Structure is installed on above valve body, and valve plate lifting in the case where executing agency drives constitutes the cutting or unlatching of runner.Valve body is provided with for valve
The lift span of plate lifting, which, which is located at top end of the valve body and has, is open, enter in runner from the opening in order to avoid impurity or
Fluid leaks to valve body from cover gab, and filler can be arranged between valve plate and valve body enhances the sealing performance of the two, on the one hand, fills out
Expect that the part of component is more and installation is inconvenient, on the other hand, filler sealing performance when encountering high-pressure fluid is limited, and there are still let out
The case where leakage, occurs, and valve plate, after frequent lifting, filler assembly will appear loosening, leak.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of good seal performance, be easily installed
Knife gate valve.
To achieve the above object, described the present invention provides the following technical scheme that including valve body, valve plate and executing agency
Valve body be provided with the runner for fluid flowing, the executing agency is installed on above valve body, and the valve plate is in the machine of execution
The lower lifting of structure driving constitutes the cutting or unlatching of runner, and the valve body is provided with the lift span for valve plate lifting, and feature exists
In: the hole wall of the lift span offers the upper seal groove towards valve plate, each institute with respect to the two sides of valve plate thickness direction respectively
It is provided with and is compressed between seal groove and valve plate and lippacking compatible with valve plate width in the upper seal groove stated, institute
The rectangular sealing space of the side Formation cross-section of the upper seal groove and valve plate stated, the lippacking are elastic material
And section be in X-shape, each end of the X-shaped of the lippacking respectively with each corner of the rectangle of sealing space or neighbouring position
It is corresponding and respectively constitute sealing cooperation, squeezing in inner concavity is provided between the X-shaped end of the adjacent lippacking
Press space.
By using above-mentioned technical proposal, the lippacking of X-shape is respectively set in the two sides of valve plate thickness direction, and
For tool there are four space is squeezed, no matter the external world enters the fluid in the impurity or valve body of valve body to external leakage, can make each squeeze
Space compressional deformation is pressed, extends out the X-shaped end for squeezing space two sides, since the space of sealing space is limited, X-shaped end can
Valve body and valve plate are squeezed, and then improves the sealing performance between each X-shaped end and valve body and valve plate, while making holding in runner
Stablize internal pressure, four extruding spaces can absorb extra compressing amount simultaneously, can preferably be adapted to valve body and valve plate, in addition, by
In the elasticity that lippacking itself has, lippacking can be made a concession upward seal groove in right amount during valve plate lifting,
The mutual abrasion of the two is reduced, while being reduced because being damped brought by friction.
The present invention is further arranged to: the lippacking two X-shaped ends towards valve plate and valve plate offsets simultaneously
Expansion space is formed between the cell wall of upper seal groove.
By using above-mentioned technical proposal, expansion space is added, the space of lippacking swing is given, is receiving fluid
Gradually the cell wall of upward seal groove is swung when pressure, to keep the cooperation of X-shaped end and valve plate even closer, makes lippacking
It can be gradually increased in fluid matasomatism seal performance.
The present invention is further arranged to: the lippacking two X-shaped ends towards upper seal groove with it is corresponding
The rectangle corner configurations of sealing space be adapted.
By using above-mentioned technical proposal, the X-shaped end of lippacking and the rectangle corner of corresponding sealing space
Shape is adapted, and is increased the contact area between X-shaped end and rectangle corner, i.e. sealing area, is enhanced the close of lippacking
Sealing property.
The present invention is further arranged to: the valve body is made of the first valve body mutually fixed and the second valve body, described
First valve body and the second valve body are located at two sides of the valve plate with respect to valve plate thickness direction, and first valve body is gone up and down along valve plate
The plane that track is provided with the lifting groove for extending to body top, the lifting groove and the second valve body towards the first valve body is constituted
Lift span, first valve body are provided with lower seal groove cavity, U of the lower seal groove cavity in opening upward around lifting groove
Shape, is provided with sealing ring compatible with lower seal groove cavity shape in the lower seal groove cavity, outside the section of the sealing ring
The sealing of the composition that offsets respectively with the second valve body, valve plate and lower seal groove cavity in week and three cooperate.
By using above-mentioned technical proposal, the first valve body and the second valve body and valve body and valve are realized by single sealing ring simultaneously
Seal request between plate simplifies sealing structure, in addition, lifting groove is only opened up on the second valve body, the first valve body and the second valve
Body asymmetric design improves the stability that machining accuracy increases valve plate lifting simultaneously.
The present invention is further arranged to: the U-shaped both ends of the lower seal groove cavity are respectively arranged with vertical with lower seal groove cavity
Jack, the limit that the jack constitutes lower seal groove cavity and sealing ring for insertion after the end bending of sealing ring cooperate.
By using above-mentioned technical proposal, jack is added, for being inserted into after the end bending of sealing ring, formation limit cooperation,
The front and back displacement of first valve body and the second valve body combination limitation sealing ring, and jack then avoids sealing ring from shifting along lower seal groove cavity,
By sealing ring accurate limit in lower seal groove cavity, to guarantee sealing performance.
The present invention is further arranged to: the valve plate is with respect to the side of valve plate width direction two sides in planar and local
It offsets with sealing ring and constitutes sealing cooperation.
By using above-mentioned technical proposal, the sealing means that Local Phase supports reduce the contact surface between valve plate and sealing ring
Product, to reduce damping suffered when valve plate lifting, to reduce the peak torque requirement to executing agency, reduction is produced into
This.
The present invention is further arranged to: the downside of the valve plate is the blade of the arc-shaped shape in section, the blade
With gradually decreasing close to the second valve body height, the blade part offsets with sealing ring constitutes sealing cooperation.
By using above-mentioned technical proposal, the plane that blade is bonded the second valve body towards the first valve body is gradually reduced, blade
During decline, hard object and fiber are chopped off, the least significant end of final blade can protrude into the second valve body and sealing ring arc-shaped circumference
In the space of formation, when fluid impacts valve plate to the second valve body, the second valve body can give enough supports of valve plate and close
Fitting, when valve plate impact by fluid to the second valve body, blade extruding sealing ring deformation, by because of damping caused by deformation,
Sealing ring is given the enough supports of valve plate and is fitted closely, to guarantee the two way seal of valve plate bottom.
The present invention is further arranged to: first valve body and the second valve body is located at runner lower end two sides and is respectively arranged with
The guiding groove that impurity is guided to outside valve body, the guiding groove is gradually increased with the direction height far from valve plate, described
The U-shaped inside edge of sealing ring and guiding groove extreme lower position are flush or higher than guiding groove extreme lower positions.
By using above-mentioned technical proposal, in valve plate closing process, valve plate will gradually can be deposited in lower seal groove cavity
Impurity is pressed down against, until the position opposite with guiding groove is pushed to, since U-shaped inside edge and guiding groove extreme lower position are mutually neat
Guiding groove extreme lower position is equalled or is higher than, the impurity of accumulation can be exposed to runner, be taken away by fluid, to realize self-cleaning function
Energy.
The present invention is further arranged to: between side and lifting groove of the valve plate with respect to valve plate thickness direction two sides
Gap is less than or equal to 0.3mm.
By using above-mentioned technical proposal, the gap between lifting groove and valve plate is limited, is reduced because suffered by pressure medium
Swing, the stability of guiding is further increased, to keep the sealing performance between valve plate and sealing ring more preferable.
Detailed description of the invention
Fig. 1 is the perspective view one of the specific embodiment of the invention；
Fig. 2 is the perspective view two of the specific embodiment of the invention；
Fig. 3 is the left view cross-sectional view of the specific embodiment of the invention；
Fig. 4 is the enlarged drawing of A in Fig. 3；
Fig. 5 is the enlarged drawing of B in Fig. 3；
Fig. 6 is the water profile in plan figure of the specific embodiment of the invention；
Fig. 7 is the enlarged drawing of valve body in the specific embodiment of the invention；
Fig. 8 is the perspective view of the first valve body in the specific embodiment of the invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described reality
Applying example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it should be noted that term " center ", "lower", "left", "right", " is erected at "upper"
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, only
It is that for the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " the
Two ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
As Figure 1-Figure 8, the invention discloses a kind of knife gate valve, including valve body 1, valve plate 2 and executing agency 3, valve body
1 is provided with the runner 11 for fluid flowing, and executing agency 3 is installed on 1 top of valve body, and valve plate 2 is gone up and down in the case where executing agency 3 drives
The cutting or unlatching of runner 11 are constituted, valve body 1 is provided with the lift span 12 gone up and down for valve plate 2, and the hole wall of lift span 12 is with respect to valve
The two sides of 2 thickness direction of plate offer the upper seal groove 13 towards valve plate 2 respectively, are provided with and are compressed in each upper seal groove 13
Between seal groove 13 and valve plate 2 and lippacking 4 compatible with 2 width of valve plate, the side shape of upper seal groove 13 and valve plate 2
At the sealing space 14 of rectangular in cross-section shape, lippacking 4 is elastic material and section is in X-shape, the X of lippacking 4
Each end of shape is corresponding with each corner of the rectangle of sealing space 14 or neighbouring position respectively and respectively constitutes sealing cooperation, adjacent lip
It is provided with the extruding space 41 in inner concavity between the X-shaped end of shape sealing element 4, is set respectively in the two sides of 2 thickness direction of valve plate
The lippacking 4 of X-shape is set, and is had there are four space 41 is squeezed, no matter the external world enters in the impurity or valve body 1 of valve body 1
It to the fluid of external leakage, can make each 41 compressional deformation of extruding space, extend out the X-shaped end for squeezing 41 two sides of space, by
Limited in the space of sealing space 14, X-shaped end can squeeze valve body 1 and valve plate 2, so improve each X-shaped end and valve body 1 and
Sealing performance between valve plate 2, while making the stabilization internal pressure kept in runner 11, it is extra that four extruding spaces 41 can absorb simultaneously
Compressing amount, can be preferably adapted to valve body 1 and valve plate 2, further, since the elasticity that lippacking 4 has itself, in valve
Lippacking 4 can be made a concession upward seal groove 13 in right amount during plate 2 is gone up and down, and reduce the mutual abrasion of the two, reduce simultaneously
Because damping brought by friction, executing agency can be motor, hydraulic cylinder, pneumatic or manually, in the specific embodiment of the invention
In, it is manual actuator, including execute seat 7, elevating screw 71 and handwheel 72, executes seat 7 and be fixed on valve body 1, go up and down silk
Bar 71, which vertically passes through, executes seat 7, and elevating screw 71 and the linkage of valve plate 2 are arranged, and handwheel 72, which is rotatably dispose in, executes seat 7 and inner circumferential
It is threadedly engaged with elevating screw 71, when user rotates handwheel 72, handwheel 72 drives elevating screw 71 to go up and down by screw thread, i.e.,
Drive valve plate lifting.
The lippacking 4 two X-shaped end a42 towards valve plate 2 and valve plate 2 offset and with the cell wall of upper seal groove 13 it
Between formed expansion space 44, add expansion space 44, give lippacking 4 swing space, when receiving Fluid pressure by
Gradually the cell wall of upward seal groove 13 is swung, to keep X-shaped end and the cooperation of valve plate 2 even closer, is flowing lippacking 4
Body effect seal performance can be gradually increased.
The lippacking 4 two X-shaped end b43 towards upper seal groove and the rectangle corner of corresponding sealing space 14
Shape is adapted, and the X-shaped end of lippacking 4 is adapted with the rectangle corner configurations of corresponding sealing space 14, increases X
Contact area between shape end and rectangle corner, i.e. sealing area enhance the sealing performance of lippacking 4.
Valve body 1 is made of the first valve body 15 mutually fixed and the second valve body 16, the first valve body 15 and the second valve body 16 difference
Two sides positioned at valve plate 2 with respect to 2 thickness direction of valve plate, the first valve body 15 are provided with along the lifting of valve plate 2 track and extend to the top of valve body 1
The plane of the lifting groove 151 in portion, lifting groove 151 and the second valve body 16 towards the first valve body 15 constitutes lift span 12, the first valve body
15 are provided with lower seal groove cavity 152, U-shape of the lower seal groove cavity 152 in opening upward, lower seal groove cavity 152 around lifting groove 151
Inside be provided with sealing ring 6 compatible with 152 shape of lower seal groove cavity, the cross sectional periphery of sealing ring 6 respectively with the second valve body 16, valve
The offset sealing of composition and three of plate 2 and lower seal groove cavity 152 cooperates, and realizes the first valve body 15 and the simultaneously by single sealing ring 6
Seal request between two valve bodies 16 and valve body 1 and valve plate 2 simplifies sealing structure, in addition, only opening up liter on the first valve body 15
Slot 151 drops, and 16 asymmetric design of the first valve body 15 and the second valve body improves the stabilization that machining accuracy increases the lifting of valve plate 2 simultaneously
Property, sealing ring 6 in Fig. 5 under the effect of valve plate 2 deformation to be filled in lower seal groove cavity 152.
The U-shaped both ends of lower seal groove cavity 152 are respectively arranged with the jack 153 vertical with lower seal groove cavity 152, and jack 153 is for close
Insertion constitutes lower seal groove cavity 152 after the end bending of seal 6 and the limit of sealing ring 6 cooperates, and jack 153 is added, for sealing ring 6
End bending after be inserted into, formed limit cooperation, install convenient, the first valve body 15 and the second valve body 16 combination limitation sealing ring 6
Front and back displacement, and jack 153 then avoid sealing ring 6 along lower seal groove cavity 152 shift, by 6 accurate limit of sealing ring in lower sealing
In slot 152, to guarantee sealing performance.
The side 21 of the opposite valve plate width direction two sides of valve plate 2 is in planar and the composition sealing that locally offsets with sealing ring 6
Cooperation, the sealing means that Local Phase supports reduce the contact area between valve plate 2 and sealing ring 6, thus when reducing the lifting of valve plate 2
Suffered damping reduces production cost to reduce the peak torque requirement to executing agency 3.
The downside 22 of valve plate 2 is the blade of the arc-shaped shape in section, and blade is gradually dropped with close to 16 height of the second valve body
It is low, blade part with sealing ring 6 offset composition sealing cooperation, blade be bonded the second valve body 16 towards the first valve body 15 plane by
Gradually decline, blade chops hard object and fiber off during decline, the least significant end of final blade can protrude into the second valve body 16 with it is close
In the space that 6 arc-shaped circumference of seal is formed, when fluid impacts valve plate 2 to the second valve body 16, the second valve body 16 can give valve
Plate 2 is enough to be supported and fits closely, and when fluid impacts valve plate 2 to the second valve body 16, blade squeezes 6 deformation of sealing ring,
By because of damping caused by deformation, sealing ring 6 is given the enough supports of valve plate 2 and is fitted closely, to guarantee 2 bottom of valve plate
Two way seal.
First valve body 15 and the second valve body 16, which are located at 11 lower end two sides of runner and are respectively arranged with, guides impurity to outside valve body 1
Guiding groove 17, guiding groove 17 with far from valve plate 2 direction height gradually increase, the U-shaped inside edge 61 of sealing ring 6 with draw
17 extreme lower position of guide groove is flush or is higher than 17 extreme lower position of guiding groove, and in 2 closing process of valve plate, valve plate 2 can be gradually by heap
Impurity of the product in lower seal groove cavity 152 is pressed down against, until the position opposite with guiding groove 17 is pushed to, due to U-shaped inner side edge
Edge and 17 extreme lower position of guiding groove are flush or are higher than 17 extreme lower position of guiding groove, and the impurity of accumulation can be exposed to runner 11, quilt
Fluid is taken away, to realize self-cleaning function.
Valve plate 2 is less than or equal to 0.3mm with respect to the gap between the side and lifting groove 151 of 2 thickness direction two sides of valve plate,
The gap between lifting groove 151 and valve plate 2 is limited, reduces because of swing suffered by pressure medium, further increases the steady of guiding
It is qualitative, to keep the sealing performance between valve plate 2 and sealing ring more preferable.
Claims (9)
1. a kind of knife gate valve, including valve body, valve plate and executing agency, the valve body is provided with the runner for fluid flowing, institute
The executing agency stated is installed on above valve body, and valve plate lifting in the case where executing agency drives constitutes the cutting of runner or opens
It opens, the valve body is provided with the lift span for valve plate lifting, it is characterised in that: the hole wall of the lift span is with respect to valve plate thickness
The two sides in degree direction offer the upper seal groove towards valve plate respectively, are provided in each upper seal groove and are compressed in sealing
Between slot and valve plate and lippacking compatible with valve plate width, the side Formation cross-section of the upper seal groove and valve plate
Rectangular sealing space, the lippacking is elastic material and section is in X-shape, the lippacking
Each end of X-shaped is corresponding with each corner of the rectangle of sealing space or neighbouring position respectively and respectively constitutes sealing cooperation, adjacent institute
The extruding space in inner concavity is provided between the X-shaped end for the lippacking stated.
2. knife gate valve according to claim 1, it is characterised in that: lippacking two X-shapeds towards valve plate
End and valve plate offset and form expansion space between the cell wall of upper seal groove.
3. knife gate valve according to claim 1, it is characterised in that: the lippacking two is towards upper seal groove
X-shaped end is adapted with the rectangle corner configurations of corresponding sealing space.
4. knife gate valve according to claim 1 or 2 or 3, it is characterised in that: the valve body is by the first valve body for mutually fixing
It is formed with the second valve body, first valve body and the second valve body are located at two sides of the valve plate with respect to valve plate thickness direction, institute
The first valve body stated is provided with the lifting groove for extending to body top, the lifting groove and the second valve body along valve plate lifting track
Lift span is constituted towards the plane of the first valve body, first valve body is provided with lower seal groove cavity around lifting groove, under described
Seal groove is in the U-shape of opening upward, is provided with sealing compatible with lower seal groove cavity shape in the lower seal groove cavity
Circle, offset respectively with the second valve body, the valve plate and lower seal groove cavity sealing of composition and three of the cross sectional periphery of the sealing ring are matched
It closes.
5. knife gate valve according to claim 4, it is characterised in that: the U-shaped both ends of the lower seal groove cavity are respectively arranged with
The jack vertical with lower seal groove cavity, the jack constitute lower seal groove cavity and sealing ring for insertion after the end bending of sealing ring
Limit cooperation.
6. knife gate valve according to claim 4, it is characterised in that: side of the valve plate with respect to valve plate width direction two sides
Face is in planar and the composition sealing cooperation that locally offsets with sealing ring.
7. knife gate valve according to claim 4, it is characterised in that: the downside of the valve plate is the arc-shaped shape in section
Blade, the blade with being gradually decreased close to the second valve body height, the blade locally offset with sealing ring constitute it is close
Envelope cooperation.
8. knife gate valve according to claim 4, it is characterised in that: first valve body and the second valve body is located under runner
End two sides are respectively arranged with the guiding groove for guiding impurity to outside valve body, and the guiding groove is with the direction height far from valve plate
It gradually increases, the U-shaped inside edge of the sealing ring and guiding groove extreme lower position are flush or higher than guiding groove extreme lower position.
9. knife gate valve according to claim 4, it is characterised in that: side of the valve plate with respect to valve plate thickness direction two sides
Gap between face and lifting groove is less than or equal to 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550322.8A CN109519559A (en) | 2018-12-18 | 2018-12-18 | Knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550322.8A CN109519559A (en) | 2018-12-18 | 2018-12-18 | Knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109519559A true CN109519559A (en) | 2019-03-26 |
Family
ID=65796523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811550322.8A Pending CN109519559A (en) | 2018-12-18 | 2018-12-18 | Knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109519559A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056799A (en) * | 1989-02-28 | 1991-10-15 | Taiho Kogyo Co., Ltd. | Lip seal device |
| JPH10267137A (en) * | 1997-03-26 | 1998-10-09 | Mitsubishi Heavy Ind Ltd | Partition damper or sluice valve |
| GB9819018D0 (en) * | 1998-08-24 | 1998-10-28 | Technaflow Inc | A split knife gate valve |
| US20050001195A1 (en) * | 2003-07-03 | 2005-01-06 | Blease Kevin J. | Loop seal for knife gate valve |
| CN201679977U (en) * | 2009-10-22 | 2010-12-22 | 淄博汇华阀业有限公司 | Novel chlorine special gate valve |
| CN201916516U (en) * | 2010-12-30 | 2011-08-03 | 浙江博恩自控阀门有限公司 | Knife gate valve |
| CN202561199U (en) * | 2012-05-22 | 2012-11-28 | 百强阀门集团有限公司 | Automatic-cleaning sluice valve |
| CN205260887U (en) * | 2016-01-04 | 2016-05-25 | 温州奇胜阀门制造有限公司 | Double sealing's knife gate |
| CN205479426U (en) * | 2016-04-11 | 2016-08-17 | 温州奇胜阀门制造有限公司 | Knife gate's packing structure |
| CN107023701A (en) * | 2017-05-26 | 2017-08-08 | 敖汝龙 | A kind of wear-resistant knife gate valve |
| CN209414655U (en) * | 2018-12-18 | 2019-09-20 | 浙江冠力阀门有限公司 | Knife gate valve |
-
2018
- 2018-12-18 CN CN201811550322.8A patent/CN109519559A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056799A (en) * | 1989-02-28 | 1991-10-15 | Taiho Kogyo Co., Ltd. | Lip seal device |
| JPH10267137A (en) * | 1997-03-26 | 1998-10-09 | Mitsubishi Heavy Ind Ltd | Partition damper or sluice valve |
| GB9819018D0 (en) * | 1998-08-24 | 1998-10-28 | Technaflow Inc | A split knife gate valve |
| US20050001195A1 (en) * | 2003-07-03 | 2005-01-06 | Blease Kevin J. | Loop seal for knife gate valve |
| CN201679977U (en) * | 2009-10-22 | 2010-12-22 | 淄博汇华阀业有限公司 | Novel chlorine special gate valve |
| CN201916516U (en) * | 2010-12-30 | 2011-08-03 | 浙江博恩自控阀门有限公司 | Knife gate valve |
| CN202561199U (en) * | 2012-05-22 | 2012-11-28 | 百强阀门集团有限公司 | Automatic-cleaning sluice valve |
| CN205260887U (en) * | 2016-01-04 | 2016-05-25 | 温州奇胜阀门制造有限公司 | Double sealing's knife gate |
| CN205479426U (en) * | 2016-04-11 | 2016-08-17 | 温州奇胜阀门制造有限公司 | Knife gate's packing structure |
| CN107023701A (en) * | 2017-05-26 | 2017-08-08 | 敖汝龙 | A kind of wear-resistant knife gate valve |
| CN209414655U (en) * | 2018-12-18 | 2019-09-20 | 浙江冠力阀门有限公司 | Knife gate valve |
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