CN110307354A - A kind of two-way knife gate valve - Google Patents
A kind of two-way knife gate valve Download PDFInfo
- Publication number
- CN110307354A CN110307354A CN201910743112.9A CN201910743112A CN110307354A CN 110307354 A CN110307354 A CN 110307354A CN 201910743112 A CN201910743112 A CN 201910743112A CN 110307354 A CN110307354 A CN 110307354A
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- Prior art keywords
- valve
- knife gate
- accommodation groove
- flashboard
- valve seat
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- 230000004308 accommodation Effects 0.000 claims abstract description 46
- 238000004140 cleaning Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000002250 absorbent Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 239000012535 impurity Substances 0.000 description 14
- 238000007789 sealing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
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- 239000002002 slurry Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
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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
- F16K3/0227—Packings
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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
- F16K3/0263—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 using particular material or covering means
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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
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The present invention provides a kind of two-way knife gate valves.Including valve body, flashboard and two valve seats；Recirculation hole and accommodation groove are set on valve body；In flat, flashboard is built in accommodation groove and can move in accommodation groove accommodation groove；Two valve seats are annular in shape, and two valve seats, which are coaxially bonded, to be set in recirculation hole, and the axis of valve seat is overlapped with the axis of recirculation hole；The outer ring surface of valve seat is bonded setting with the inner ring surface of recirculation hole；Valve seat has elasticity；Two opposite end faces of valve seat are fitted and connected, and when flashboard is moved between two valve seats along accommodation groove, can block recirculation hole；When flashboard along accommodation groove from when being removed between two valve seats, recirculation hole restores conducting and two opposite end faces of valve seat are fitted and connected again.The valve seat connected using two elastic fits, valve seat and pipeline formation integral structure prevent interior leakage to two-way knife gate valve in the on-state, guarantee that medium well circulates in pipeline.And two valve seat constructions are identical, two-way knife gate valve can both forward and reverse directions arbitrarily install.
Description
Technical field
The present invention relates to pipe transportation technology fields, in particular to a kind of two-way knife gate valve.
Background technique
Upgrade with the continuous progress of technology, valve attains full development in every profession and trade field, uses two-way knife gate valve
Desulphurization circulating slurries pipeline be widely used in petrochemical industry Refining Chemical Industry.Two-way knife gate valve has green energy conservation, efficient, environmental protection etc.
Advantage, therefore attention of the development of the technology by domestic and international relevant industries.
However, traditional knife gate valve sealing performance is poor, it is not tight to close, it is easy to appear the feelings of sealing ring leakage in use
Condition, or even since sealing ring compactness is not high, sealing ring loss under media impingement effect occurs and causes to leak and leak outside in pipeline
Consequence, seriously affect the design and use of desulphurization circulating slurries pipeline technology, can not meet engineering application requirement.
Summary of the invention
The purpose of the present invention is to provide a kind of two-way knife gate valves, can be improved the installation leakproofness and stabilization of valve seat
Property, valve seat is prevented because the situation that leakage is even lost occurs for media impingement active force.
The embodiment of the present invention is achieved in that
A kind of two-way knife gate valve comprising valve body, flashboard and two valve seats；Recirculation hole and accommodating are set on the valve body
Slot, the recirculation hole run through the valve body；In flat, the flashboard is built in the accommodation groove and can be the accommodation groove
It is moved in the accommodation groove；Two valve seats are annular in shape, and two valve seats, which are coaxially bonded, is set to the recirculation hole
Interior, the axis of the valve seat is overlapped with the axis of the recirculation hole；The inner ring surface of the outer ring surface of the valve seat and the recirculation hole
Fitting setting；The valve seat has elasticity；Two opposite end faces of the valve seat are fitted and connected, when the flashboard is along the accommodating
When slot is moved between two valve seats, the recirculation hole can be blocked；When the flashboard along the accommodation groove from two institutes
It states when being removed between valve seat, the recirculation hole restores conducting and two opposite end faces of the valve seat are fitted and connected again.
In preferred embodiments of the present invention, the valve seat is made of rubber, and two opposite end faces of the valve seat are in
Arc.It has the technical effect that frequently is plugged between two valve seats due to flashboard along accommodation groove back and forth, and two valve seats are opposite
End face be set as arc after, along with valve seat have elasticity, can prevent valve seat from bending in the friction process with flashboard
And then affect airtightness.
In preferred embodiments of the present invention, it is respectively provided with setting steel wire inside two valve seats, for fixing the valve
The outer shape of seat.It has the technical effect that compared with traditional sealing ring, gasket, the external dimensions of valve seat is larger, and
It is compressed and rubbed against in the course of work by flashboard and is easy to happen deformation.And it is provided with setting steel wire, avoidable valve seat occurred
Big deformation extends the service life of equipment.
In preferred embodiments of the present invention, the joint face of the valve seat and the recirculation hole is cascaded surface.Its technology effect
Fruit is: being fitted and connected between the outer ring surface of valve seat and the inner ring surface of recirculation hole, which is set as the cascaded surface of annular, i.e.,
On the radial section of valve seat, the contour line of valve seat outer ring surface, the contour line of recirculation hole inner ring surface are ladder-like.It can mention significantly
The sealing performance in riser road.
In preferred embodiments of the present invention, along the axis direction of the recirculation hole, between the valve seat and the flashboard
Maximum distance, greater than the maximum distance between the valve body and the flashboard.It has the technical effect that valve seat in recirculation hole
The distance of axis direction protrusion is greater than the distance of valve body in this direction, so that entire two-way knife gate valve is in the connection peace with pipeline
When dress, the end face of valve seat can make the valve seat of an entirety that can either prevent interior leakage from preventing from leaking outside again directly as the face of sealed connection.
In preferred embodiments of the present invention, anti-absorbent coating is arranged in the surface of the flashboard.It has the technical effect that energy
Enough solid particulate matter is avoided to be adsorbed on flashboard, damage of the solid particulate matter to sealing surface when reducing two-way knife gate valve unlatching, closing
Wound.
In preferred embodiments of the present invention, mudhole is set, the mudhole is connected to the accommodation groove on the valve body
The outer space of inner cavity and the valve body.It has the technical effect that mudhole can be discharged into the impurity of accommodation groove at any time, guarantees
Two-way knife gate valve is smoothly closed.
In preferred embodiments of the present invention, cleaning hole, the cleaning hole connection are additionally provided on the valve body blowdown plate
The outer space of the accommodation groove inner cavity and the valve body.It has the technical effect that cleaning hole and mudhole collective effect, passes through
Cleaning hole on blowdown plate is blown into air, mudhole excretion impurity forms circulation loop, can accelerate the discharge of impurity, raising is set
Standby maintenance efficiency and service efficiency.
It further include dismountable blowdown plate in preferred embodiments of the present invention, the blowdown plate is located on the valve body；
The blowdown plate is unloaded, the accommodation groove inner cavity is connected to the outer space of the valve body.It has the technical effect that when impurity compared with
Mostly it is larger be difficult to by mudhole realize drain when, the bottom deposit of accommodation groove inner cavity can be uniformly cleared up by detachable blowdown plate
Impurity prevents the closing of impurity effect flashboard, has ensured the normal sealing performance of double gate valve.
It further include seal washer in preferred embodiments of the present invention；The seal washer is set to the accommodation groove
Between inner wall and the flashboard.It has the technical effect that flashboard is larger along the moving distance of accommodation groove, in accommodation groove inner wall and lock
Seal washer is set between plate, can prevent external dust or impurity from entering the leakproofness of accommodation groove influence knife gate valve.
The beneficial effect of the embodiment of the present invention is:
Two-way knife gate valve of the invention utilizes the valve seat of two elastic fits connection, in the on-state valve seat and pipeline shape
It is into a single integrated structure to prevent interior leakage, guarantee that medium well circulates in pipeline.And under the full-gear of conducting, flashboard can online more
It changes, does not influence the normal use of knife gate valve.And two valve seat constructions are identical, two-way knife gate valve can both forward and reverse directions arbitrarily install.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the first schematic diagram of internal structure of two-way knife gate valve provided in an embodiment of the present invention；
Fig. 2 is that the first structure of two-way knife gate valve provided in an embodiment of the present invention disassembles schematic diagram；
Fig. 3 is second of schematic diagram of internal structure of two-way knife gate valve provided in an embodiment of the present invention；
Fig. 4 is that second of structure of two-way knife gate valve provided in an embodiment of the present invention disassembles schematic diagram.
In figure: 1- valve body；2- flashboard；3- valve seat；4- recirculation hole；5- accommodation groove；6- setting steel wire；7- mudhole；8- is clear
Clean hole；9- blowdown plate；10- seal washer.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
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, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Fig. 1 is the first schematic diagram of internal structure of two-way knife gate valve provided in an embodiment of the present invention；Fig. 2 is that the present invention is real
The first structure dismantling schematic diagram of the two-way knife gate valve of example offer is provided；Fig. 3 is two-way knife gate valve provided in an embodiment of the present invention
Second of schematic diagram of internal structure；Fig. 4 is that second of structure of two-way knife gate valve provided in an embodiment of the present invention disassembles signal
Figure.
First embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves comprising valve body 1, flashboard 2 and two valve seats
3；Recirculation hole 4 and accommodation groove 5 are set on valve body 1, and recirculation hole 4 runs through valve body 1；For accommodation groove 5 in flat, flashboard 2 is built in appearance
It sets slot 5 and can be moved in accommodation groove 5；Two valve seats 3 are annular in shape, and coaxially fitting is set to recirculation hole 4 to two valve seats 3
Interior, the axis of valve seat 3 is overlapped with the axis of recirculation hole 4；The outer ring surface of valve seat 3 is bonded setting with the inner ring surface of recirculation hole 4；Valve seat
3 have elasticity；When initial, two opposite end faces of valve seat 3 are fitted and connected, when flashboard 2 is moved to two valve seats 3 along accommodation groove 5
Between when, recirculation hole 4 can be blocked；When flashboard 2 along accommodation groove 5 from when being removed between two valve seats 3, recirculation hole 4 restores conducting
And two opposite end faces of valve seat 3 are fitted and connected again.
The working principle of two-way knife gate valve is: when flashboard 2 cuts off runner, close, energy is bonded between valve seat 3 and flashboard 2
It enough prevents from medium from flowing into accommodation groove 5 to leak；When flashboard 2 lift off a seat 3 make recirculation hole 4 be connected when, two elastic valve seats 3
Mutual extrusion under the action of elastic force still maintains sealing and prevents interior leakage.Meanwhile flashboard 2 can be replaced online without shadow
Ring the normal use of knife gate valve.Also, since the structure of two valve seats 3 is just the same, therefore two-way knife gate valve can be with two sides
To any one direction install, do not limited by angle, improve the efficiency of installation.
Second embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves, the two-way knife gate valve with first embodiment
Roughly the same, the difference of the two is in the two-way knife gate valve of the present embodiment that two opposite end faces of valve seat 3 are arc-shaped, and valve
Seat 3 is made of rubber material.
The arcwall face is oppositely arranged, so that connecting end surface is mellow and full smooth between two valve seats 3.Flashboard 2 is frequent along accommodation groove 5
It is plugged back and forth between two valve seats 3, after setting arc for two opposite end faces of valve seat 3, along with valve seat 3 has bullet
Property, it can prevent valve seat 3 from bending and then affecting airtightness with generation in the friction process of flashboard 2.
3rd embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves, the two-way knife gate valve with first embodiment
Roughly the same, the difference of the two is in the two-way knife gate valve of the present embodiment to be respectively provided with setting steel wire 6 inside two valve seats 3, uses
In the outer shape of fixed valve base 3.
Setting steel wire 6 should be set as cyclic annular, be arranged inside valve seat 3, axis is overlapped with the axis of valve seat 3.One valve
Settable multiple setting steel wires 6 in seat 3.Because the external dimensions of valve seat 3 is larger compared with traditional sealing ring, gasket, and
Deformation is easy to happen by compressing and rubbing against for flashboard 2 during the work time.And it is provided with setting steel wire 6, it can avoid valve seat 3 and go out
Existing excessive deformation, extends the service life of equipment.
Fourth embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves, the two-way knife gate valve with first embodiment
Roughly the same, the difference of the two is in the two-way knife gate valve of the present embodiment that the joint face of valve seat 3 and recirculation hole 4 is cascaded surface.
It is fitted and connected between the outer ring surface of valve seat 3 and the inner ring surface of recirculation hole 4, which is set as the ladder of annular
Face, i.e., on the radial section of valve seat 3, the contour line of 3 outer ring surface of valve seat, the contour line of 4 inner ring surface of recirculation hole are ladder-like.
And valve seat 3 is greater than the outer diameter close to 2 side of flashboard far from the outer diameter of 2 side of flashboard, which paste valve seat 3 and recirculation hole 4
It closes joint face and forms sequentially connected multiple anchor rings, the sealing performance of pipeline can be greatly promoted.
5th embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves, the two-way knife gate valve with first embodiment
Roughly the same, the difference of the two is in the two-way knife gate valve of the present embodiment along the axis direction of recirculation hole 4, valve seat 3 and flashboard 2
Between maximum distance, greater than the maximum distance between valve body 1 and flashboard 2.
Also, an end face of the valve seat 3 apart from 2 maximum distance of flashboard is set as plane, and plane patch can be formed with pipeline
That closes is press-connected.At this point, valve seat 3 recirculation hole 4 axis direction protrude distance be greater than valve body 1 in this direction away from
From so that entire two-way knife gate valve, in the connection installation with pipeline, the end face of valve seat 3 can make directly as the face of sealed connection
The valve seat 3 of one entirety can either prevent interior leakage from preventing from leaking outside again.
Sixth embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves, the two-way knife gate valve with first embodiment
Roughly the same, the difference of the two is that anti-absorbent coating is arranged in the surface of flashboard 2 in the two-way knife gate valve of the present embodiment.
It is adsorbed on flashboard 2, reduces two-way at this point, the anti-absorbent coating on the surface of flashboard 2 can be avoided solid particulate matter
Damage of the solid particulate matter to sealing surface when knife gate valve is opened, closed.
7th embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves, the two-way knife gate valve with first embodiment
Roughly the same, the difference of the two is in the two-way knife gate valve of the present embodiment that mudhole 7 is arranged on valve body 1, and the connection of mudhole 7 is held
Set the outer space of slot 5 inner cavity and valve body 1.
At this point, mudhole 7 can be discharged into the impurity of accommodation groove 5 at any time, guarantee that two-way knife gate valve is smoothly closed.
8th embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves, the two-way knife gate valve with first embodiment
Roughly the same, the difference of the two is to be additionally provided with cleaning hole 8 in the two-way knife gate valve of the present embodiment on valve body 1, and cleaning hole 8 connects
The outer space of logical accommodation groove 5 inner cavity and valve body 1.
At this point, cleaning hole 8 and 7 collective effect of mudhole, are blown into air by cleaning hole 8, mudhole 7 is drained impurity and formed
Circulation loop can accelerate the discharge of impurity, improve the maintenance efficiency and service efficiency of equipment.
9th embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves, the two-way knife gate valve with first embodiment
Roughly the same, the difference of the two is that the two-way knife gate valve of the present embodiment further includes dismountable blowdown plate 9, and blowdown plate 9 is located at
On valve body 1；Down blow plate 9 is unloaded, 5 inner cavity of accommodation groove is connected to the outer space of valve body 1.
At this point, when impurity it is more it is larger be difficult to by mudhole 7 realize drain when, detachable 9 unification of blowdown plate can be passed through
The bottom deposit impurity for clearing up 5 inner cavity of accommodation groove, prevents the closing of impurity effect flashboard 2, has ensured that double gate valve normally seals
Performance.
It is emphasized that mudhole 7, cleaning hole 8 can be separately positioned on the side wall of valve body 1, can also be arranged at
On blowdown plate 9.
Tenth embodiment:
FIG. 1 to FIG. 4 is please referred to, the present embodiment provides a kind of two-way knife gate valves, the two-way knife gate valve with first embodiment
Roughly the same, the difference of the two is that the two-way knife gate valve of the present embodiment further includes seal washer 10；Seal washer 10 is set to
Between 5 inner wall of accommodation groove and flashboard 2.
Flashboard 2 is larger along the moving distance of accommodation groove 5, and seal washer 10 is arranged between 5 inner wall of accommodation groove and flashboard 2,
It can prevent external dust or impurity from entering the leakproofness of the influence knife gate valve of accommodation groove 5.
To sum up, two-way knife gate valve of the invention utilizes the valve seat 3 of two elastic fits connection, in the on-state valve seat 3
Forming integral structure with pipeline prevents interior leakage, guarantees that medium well circulates in pipeline.And under the full-gear of conducting, flashboard
2 can replace online, not influence the normal use of knife gate valve.And two 3 structures of valve seat are identical, two-way knife gate valve can both forward and reverse directions times
Meaning installation.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of two-way knife gate valve, which is characterized in that including valve body, flashboard and two valve seats；
Recirculation hole and accommodation groove are set on the valve body；For the accommodation groove in flat, the flashboard is built in the accommodation groove
And it can be moved in the accommodation groove；
Two valve seats are annular in shape, and two valve seats, which are coaxially bonded, to be set in the recirculation hole, the valve seat
Axis is overlapped with the axis of the recirculation hole；The outer ring surface of the valve seat is bonded setting with the inner ring surface of the recirculation hole；It is described
Valve seat has elasticity；
Two opposite end faces of the valve seat are fitted and connected, when the flashboard along the accommodation groove be moved to two valve seats it
Between when, the recirculation hole can be blocked；When the flashboard along the accommodation groove from when being removed between two valve seats, the stream
Through-hole restores conducting and two opposite end faces of the valve seat are fitted and connected again.
2. two-way knife gate valve according to claim 1, which is characterized in that the valve seat is made of rubber, two valves
The opposite end face of seat is arc-shaped.
3. two-way knife gate valve according to claim 1, which is characterized in that be respectively provided with setting steel inside two valve seats
Silk, for fixing the outer shape of the valve seat.
4. two-way knife gate valve according to claim 1, which is characterized in that the joint face of the valve seat and the recirculation hole is
Cascaded surface.
5. two-way knife gate valve according to claim 1, which is characterized in that along the axis direction of the recirculation hole, the valve
Maximum distance between seat and the flashboard, greater than the maximum distance between the valve body and the flashboard.
6. two-way knife gate valve according to claim 1, which is characterized in that anti-absorbent coating is arranged in the surface of the flashboard.
7. two-way knife gate valve according to claim 1, which is characterized in that mudhole is arranged on the valve body blowdown plate, institute
State the outer space that mudhole is connected to the accommodation groove inner cavity and the valve body.
8. two-way knife gate valve according to claim 7, which is characterized in that cleaning hole is additionally provided on the valve body, it is described
Cleaning hole is connected to the outer space of the accommodation groove inner cavity and the valve body.
9. two-way knife gate valve according to claim 1, which is characterized in that further include dismountable blowdown plate, the blowdown
Plate is located on the valve body；The blowdown plate is unloaded, the accommodation groove inner cavity is connected to the outer space of the valve body.
10. two-way knife gate valve according to claim 1, which is characterized in that further include seal washer；The seal washer is set
It is placed between the inner wall of the accommodation groove and the flashboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910743112.9A CN110307354A (en) | 2019-08-13 | 2019-08-13 | A kind of two-way knife gate valve |
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| CN201910743112.9A CN110307354A (en) | 2019-08-13 | 2019-08-13 | A kind of two-way knife gate valve |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311456A (en) * | 1997-05-13 | 1998-11-24 | Seibu Shoji Kk | Sluice valve |
| US6422535B1 (en) * | 2000-11-30 | 2002-07-23 | Victaulic Company Of America | Knife gate valve |
| US20080017825A1 (en) * | 2006-07-21 | 2008-01-24 | Blenkush Robert A | Bi-directional knife gate valve apparatus and method |
| EP2413007A1 (en) * | 2010-07-26 | 2012-02-01 | Orbinox valves international, S.L. | Process for manufacturing guillotine valves |
| CN104100728A (en) * | 2014-08-07 | 2014-10-15 | 郑子叶 | Self-sealing gate valve |
| CN206017823U (en) * | 2016-08-31 | 2017-03-15 | 浙江瑞思拓阀门科技有限公司 | A kind of inside screw nonrising stem type gate valve |
| CN108343756A (en) * | 2018-04-12 | 2018-07-31 | 浙江锐步流体控制设备有限公司 | Dual-seal knife gate valve |
| CN210318590U (en) * | 2019-08-13 | 2020-04-14 | 北京中瑞麦通科技有限公司 | Bidirectional knife gate valve |
-
2019
- 2019-08-13 CN CN201910743112.9A patent/CN110307354A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311456A (en) * | 1997-05-13 | 1998-11-24 | Seibu Shoji Kk | Sluice valve |
| US6422535B1 (en) * | 2000-11-30 | 2002-07-23 | Victaulic Company Of America | Knife gate valve |
| US20080017825A1 (en) * | 2006-07-21 | 2008-01-24 | Blenkush Robert A | Bi-directional knife gate valve apparatus and method |
| EP2413007A1 (en) * | 2010-07-26 | 2012-02-01 | Orbinox valves international, S.L. | Process for manufacturing guillotine valves |
| CN104100728A (en) * | 2014-08-07 | 2014-10-15 | 郑子叶 | Self-sealing gate valve |
| CN206017823U (en) * | 2016-08-31 | 2017-03-15 | 浙江瑞思拓阀门科技有限公司 | A kind of inside screw nonrising stem type gate valve |
| CN108343756A (en) * | 2018-04-12 | 2018-07-31 | 浙江锐步流体控制设备有限公司 | Dual-seal knife gate valve |
| CN210318590U (en) * | 2019-08-13 | 2020-04-14 | 北京中瑞麦通科技有限公司 | Bidirectional knife gate valve |
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