CN207796142U - A kind of anti-blocking knife gate valve - Google Patents
A kind of anti-blocking knife gate valve Download PDFInfo
- Publication number
- CN207796142U CN207796142U CN201721848833.9U CN201721848833U CN207796142U CN 207796142 U CN207796142 U CN 207796142U CN 201721848833 U CN201721848833 U CN 201721848833U CN 207796142 U CN207796142 U CN 207796142U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- inlet valve
- annular groove
- water outlet
- knife gate
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of anti-blocking knife gate valves, including valve body, executing agency, inlet valve seat, water outlet valve seat, flashboard and filter screen, inlet valve seat is mounted on water outlet valve seat on valve body, executing agency drives flashboard to move up and down and opens or closes inlet valve seat and water outlet valve seat by valve shaft, the water outlet in inlet valve seat is arranged in filter screen, annular groove is equipped on inlet valve seat, annular groove is arranged along the channel circumference of inlet valve seat, inlet valve seat is equipped with blow-off pipe, and the blow-off pipe is communicated with annular groove.The utility model can and prevent fluid from causing to accumulate in the inlet valve seat of knife gate valve, influence passing through for fluid, while also improving the service life of knife gate valve.
Description
Technical field
The utility model is related to a kind of knife gate valve more particularly to a kind of anti-blocking knife gate valves.
Background technology
Gate valve is an opening and closing element flashboard, and the direction of motion and flow direction of flashboard are perpendicular, gate valve can only make standard-sized sheet and
Fully closed, the opening and closing element of gate valve is flashboard, cannot make adjustments and throttle.Contain solid in liquid separation phase medium in the middle part of industrial circle
Grain object, causes greatly to damage, the sealing surface of valve is destroyed quickly, loses sealing performance, causes liquid to pipeline and valve
Dielectric leakage.In closing process, the solid particle or impurity that remain in body base cause valve to the closure of flashboard simultaneously
It influences, is unable to completely close sealing.Gate valve traditional at present is equipped with filter, is typically mounted on the input end of valve, needs special
Door one additional filtration of design, the larger cost of volume are higher；Filter screen also is installed in the water outlet end of inlet valve seat, but
Structure dismounting installation is inconvenient.It is improved on gate valve at present for the filtering of gate valve at present, replaces or be intended to when dismantling
Dismantle gate valve, complex procedures, installation inconvenience.The valve body of existing knife gate valve is casting one with valve seat, residual in use
There are the impurity in valve seat inlet pipeline to be difficult to.
If China Patent No. 201521000600.4 discloses a kind of pulp water gate valve, the valve deck of the pulp water gate valve passes through bolt
Valve body middle chamber is formed set on valve body top surface and with valve body, valve shaft penetrates valve deck and is located in valve body middle chamber, and valve shaft bottom end passes through falcon
Slot is connect with flashboard top, and valve shaft driving flashboard makes flashboard between valve body middle chamber or the valve seat of valve body, and flashboard bottom is in valve
The inlet side of body is equipped with diversion trench, and diversion trench is located at below the valve seat of valve body, and body base is equipped with ash pit, deslagging in outlet side
Slot is located at below the valve seat of valve body.This pulp water gate valve overcomes the defect of traditional gate valve, significantly improves in the serious pipeline of erosion
On service life, extend maintenance of valve replacement period, reduce transport system operating cost, ensure that pipeline medium
Transmitting.Although above-mentioned patent is also for preventing erosion of the solid particulate matter to gate valve, above-mentioned patent filter screen filtration
Impurity afterwards can gradually form accumulation in import valve seat, influence passing through for fluid, while its is complicated, maintenance difficulties are big.
Utility model content
In order to overcome the deficiencies of existing technologies, the utility model provides a kind of anti-blocking knife gate valve, and the knife gate valve is impure
Fluid flow through not only by filter fluid in impurity, the impurity of filtering can be discharged in due course, prevent impurity from causing to accumulate.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of anti-blocking knife gate valve, including valve body, executing agency, inlet valve seat, water outlet valve seat, flashboard and filter screen, water inlet
Valve seat is mounted on water outlet valve seat on valve body, and executing agency drives flashboard to move up and down and opens or closes inlet valve seat by valve shaft
With water outlet valve seat, the water outlet in inlet valve seat is arranged in the filter screen, it is characterised in that：The inlet valve seat is equipped with annular
Slot, annular groove are arranged along the channel circumference of inlet valve seat, and the inlet valve seat is equipped with blow-off pipe, the blow-off pipe and annular groove
It communicates.Annular groove is located at the inlet valve seat before filter screen, and when fluid stream is through filter screen, flow velocity reduces, and the impurity of filtering exists
The effect collection of gravity is wanted in annular groove, through collection after a period of time, is opened blow-off pipe and is released, to prevent fluid in disconnecting link
It causes to accumulate in the inlet valve seat of valve, influences passing through for fluid, while also improving the service life of knife gate valve.
Elongated slot is additionally provided in the channel of the inlet valve seat, the elongated slot is axially arranged along the channel of inlet valve seat, described
Elongated slot is connected to annular groove.When fluid flows through inlet valve seat, impurity is further collected along elongated slot and is pooled in annular groove,
It is discharged by blow-off pipe.
The section of the annular groove is U-shaped or half arc, prevents impurity from forming accumulation in annular groove, improves filtering effect
Fruit.
The utility model has the following advantages：
1, the utility model is equipped with annular groove on inlet valve seat, and annular groove is arranged along the channel circumference of inlet valve seat, institute
It states inlet valve seat and is equipped with blow-off pipe, the blow-off pipe is communicated with annular groove.Annular groove is located at the inlet valve seat before filter screen,
When fluid stream is through filter screen, flow velocity reduces, and the impurity of filtering is wanted in the effect collection of gravity in annular groove, through after a period of time
Collection, open blow-off pipe and release, to prevent fluid from causing to accumulate in the inlet valve seat of knife gate valve, influence the logical of fluid
It crosses, while also improving the service life of knife gate valve.
2, the section of the annular groove of the utility model is U-shaped or half arc, prevents impurity from forming accumulation in annular groove, carries
High filtration effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
It is marked in figure：1, valve body, 2, executing agency, 3, inlet valve seat, 4, water outlet valve seat, 5, flashboard, 6, filter screen, 7, ring
Shape slot, 8, elongated slot, 9, valve shaft, 10, blow-off pipe.
Specific implementation mode
The utility model is further elaborated below in conjunction with the accompanying drawings, but the present invention is not limited to following embodiments, it is described
Method is conventional method unless otherwise instructed, and the material can obtain unless otherwise instructed from open commercial sources.
Embodiment 1
As shown in Figure 1, a kind of anti-blocking knife gate valve, including valve body 1, executing agency 2, inlet valve seat 3, water outlet valve seat 4 and lock
Plate 5, inlet valve seat 3 are mounted on water outlet valve seat 4 on valve body, and executing agency 2 drives flashboard 5 to move up and down opening by valve shaft 9
Or inlet valve seat and water outlet valve seat are closed, the water outlet of inlet valve seat 3 is equipped with the filter screen 6 for filtering fluid impurity.
Annular groove 7 is offered on inlet valve seat 3, annular groove 7 is arranged along the channel circumference of inlet valve seat 3, in inlet valve
Seat 3 is equipped with blow-off pipe 10, and the blow-off pipe 10 is communicated with annular groove 7.Annular groove 7 is located at the inlet valve seat 3 before filter screen 6
On, when fluid stream is through filter screen 6, flow velocity reduces, and the impurity of filtering is wanted in the effect collection of gravity in annular groove, by one section
The collection of time is opened blow-off pipe and is released, to prevent fluid from causing to accumulate in the inlet valve seat of knife gate valve, influences fluid
Pass through, while also improving the service life of knife gate valve.
Further, elongated slot 8 is additionally provided in the channel of inlet valve seat 3, the elongated slot 8 is axial along the channel of inlet valve seat 3
Setting, the elongated slot 8 are connected to annular groove 7.When fluid flows through inlet valve seat, impurity is further collected and is collected along elongated slot
Into annular groove, discharged by blow-off pipe.
Further, the section of annular groove 7 is U-shaped or half arc, prevents impurity from forming accumulation in annular groove, improved
Filter effect.
Claims (3)
1. a kind of anti-blocking knife gate valve, including valve body (1), executing agency (2), inlet valve seat (3), water outlet valve seat (4), flashboard (5)
With filter screen (6), inlet valve seat (3) is mounted on water outlet valve seat (4) on valve body (1), and executing agency (2) is driven by valve shaft (9)
Dynamic flashboard (5), which moves up and down, opens or closes inlet valve seat (3) and water outlet valve seat (4), and the filter screen (6) is arranged in inlet valve
The water outlet of seat (3), it is characterised in that：The inlet valve seat (3) is equipped with annular groove (7), and annular groove (7) is along inlet valve seat
(3) channel circumference setting, the inlet valve seat (3) are equipped with blow-off pipe (10), the blow-off pipe (10) and annular groove (7) phase
It is logical.
2. a kind of anti-blocking knife gate valve according to claim 1, it is characterised in that：In the channel of the inlet valve seat (3) also
Equipped with elongated slot (8), the elongated slot (8) is axially arranged along the channel of inlet valve seat (3), and the elongated slot (8) connects with annular groove (7)
It is logical.
3. a kind of anti-blocking knife gate valve according to claim 1, it is characterised in that：The section of the annular groove (7) is U-shaped
Or half arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721848833.9U CN207796142U (en) | 2017-12-26 | 2017-12-26 | A kind of anti-blocking knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721848833.9U CN207796142U (en) | 2017-12-26 | 2017-12-26 | A kind of anti-blocking knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207796142U true CN207796142U (en) | 2018-08-31 |
Family
ID=63279098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721848833.9U Expired - Fee Related CN207796142U (en) | 2017-12-26 | 2017-12-26 | A kind of anti-blocking knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207796142U (en) |
-
2017
- 2017-12-26 CN CN201721848833.9U patent/CN207796142U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20191226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |