CN202510735U - Pneumatic gate valve for fluidized sticky powdery materials - Google Patents
Pneumatic gate valve for fluidized sticky powdery materials Download PDFInfo
- Publication number
- CN202510735U CN202510735U CN2012200897422U CN201220089742U CN202510735U CN 202510735 U CN202510735 U CN 202510735U CN 2012200897422 U CN2012200897422 U CN 2012200897422U CN 201220089742 U CN201220089742 U CN 201220089742U CN 202510735 U CN202510735 U CN 202510735U
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- valve
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- seal support
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Abstract
The utility model discloses a pneumatic gate valve for fluidized sticky powdery materials. The pneumatic gate valve comprises a valve body formed by the convolution connection of the cover surfaces of an upper valve cover and a lower valve cover, and a cylinder, wherein a valve cavity is formed in the valve body, the front end surface of the valve cavity in the valve body is a 90-degree arc surface, a valve port is formed at the rear end of the valve body, a square sealing support which is hermetically matched with the valve port is arranged in the valve port, and oil-immersed packing is filled in a clearance between the square sealing support and an end wall of the valve port; and a valve plate is arranged in the valve body in a sliding way, the rear end of the valve plate is connected with a connecting part which passes through and extends out of the square sealing support, a piston rod of the cylinder is fixedly connected with the connecting part of the rear end of the valve plate, the front end of the valve plate is molded into a 90-degree arc surface which is matched with the front end surface of the valve cavity, the bottom in the lower valve cover is provided with an anti-extrusion sunken groove along an arc direction of the front end surface of the valve body, and a plurality of grooves are also formed on an inner wall of the lower valve cover. The pneumatic gate valve has a reasonable structure, can effectively prevent phenomena of material blocking and scaling from appearing between the valve plate and the valve body, has good sealing performance, and has strong pertinence to the sealing of fluidized powdery materials; and gland packing can be conveniently and quickly replaced.
Description
Technical field
The utility model relates to and is used for a kind of valve arrangement that fluidization is prone to the bonding granular material, mainly is that a kind of fluidization is prone to a bonding type granular material pneumatic brake plate valve, be applicable to fluidization be prone to the bonding granular material the circulation of pipe interior with end.
Background technique
At present; Be prone to the bonding granular material refer to particle very little, mobile strong, be prone to be bonded in the material on the miscellaneous equipment; Such material is blanking state flowing near liquid under action of gravity; The circulation of such material and two hang-ups that face by the gate valve that adopts: because of factors such as moisture are bonded in valve inner, long-time use back fouling meeting causes valve stuck to (1) material, influences valve switch in the blanking process; (2) clearance seal problem between valve plate and the valve body is even phenomenons such as material also can appear leaking in fluidized material under small gap.
The model utility content
The utility model technical problem to be solved provides a kind of fluidization and is prone to bonding type granular material pneumatic brake plate valve; It is rational in infrastructure; Can effectively prevent the scale formation that gets stuck to occur between valve plate and the valve body, and good seal performance, sealing has very strong specific aim to the fluidization granular material; Stuffing box packing is changed convenient, fast.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is:
A kind of fluidization is prone to bonding type granular material pneumatic brake plate valve; Include by the identical involutory valve body that connects and composes of upper and lower valve gap capping of shape, also include the cylinder that is arranged on valve body one side, have valve pocket in the valve body; It is characterized in that: said valve body internal valve cavity front-end face is 90 degree arc surfaces; Valve rear end has valve port, is provided with the quad seal support that cooperates with sealing valve port in the valve port, is filled with the immersion oil packing in the gap between quad seal support and the valve port end wall; Be slidingly fitted with valve plate in the described valve body; The valve plate rear end is connected with the joint that passes and stretch out from the quad seal support; The piston rod of said cylinder is fixedly connected with the joint of valve plate rear end; Said valve plate front end is shaped to 90 degree arc surfaces with valve pocket front-end face coupling, and the bottom flange inner bottom part is provided with the deep gouge of anti-extrusion along valve body front-end face circular arc direction, also is provided with the multiple tracks groove on the bottom flange inwall.
Described quad seal support is installed in through socket head screw in the valve port of valve body, the immersion oil packing between the quad seal support front end top clearance.
Be fixedly connected with guide connecting rod between the aft bulkhead of described cylinder and valve body.
The consolidation of immersion oil packing can be realized through the elasticity that socket head screw is regulated the quad seal support in the utility model.
Multiple tracks groove in the utility model on the bottom flange inwall is the anti-stick groove, produces material in the time of preventing the valve plate switch effectively and is bonded to dirt; The anti-extrusion groove is that the valve plate leading portion is expressed to material on the bottom flange and bonds during for fear of valve closing, can influence the switch of valve after this bonding is long-time.The quad seal support material phenomenon occurs leaking with the compacting of filler immersion oil packing when preventing valve switch.
In the practical operation; In the valve open process; Front end is that the valve plate of 90 ° of arc surfaces moves to the cylinder direction under the cylinder piston rod tension; Material on the valve plate surface of contact has been avoided valve plate and has been formed the bonding dirt with the bottom flange extruding because of the existence of antiseized groove, has reduced valve effectively and phenomenons such as stuck occurred because of bonding.During valve closing, front end is valve plate throttle down under the thrust of cylinder piston rod of 90 ° of arc surfaces, because of the existence of anti-extrusion deep gouge makes that place, the side material of valve plate can be because of situation such as fitting badly appear in the extruding fouling.
Sealing between valve plate and the valve port end wall in the valve switch process is a kind of packing seal, and filler is a kind of immersion oil packing, and filler can form the softer packing seal circle of one deck after the squeezing action of quad seal support, prevent the leakage of fluidization powder effectively.
The utility model has the advantages that:
The utility model is rational in infrastructure, can effectively prevent the scale formation that gets stuck to occur between valve plate and the valve body, and the side's of sealing performance is good, and sealing has very strong specific aim to the fluidization granular material; Stuffing box packing is changed convenient, fast.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the utility model internal structure plan view.
Fig. 3 is the local structural representation of packing seal place among Fig. 1.
Embodiment
Referring to Fig. 1, a kind of fluidization is prone to bonding type granular material pneumatic brake plate valve, includes by the identical involutory valve body that connects and composes 1 of upper and lower valve gap 4,5 cappings of shape; Also include the cylinder 3 that is arranged on valve body one side; Have valve pocket in the valve body 1, said valve body 1 internal valve cavity front-end face is 90 degree arc surfaces, and valve body 1 rear end has valve port; Be provided with the quad seal support 6 that cooperates with sealing valve port in the valve port, be filled with immersion oil packing 7 in the gap between quad seal support 6 and the valve port end wall; Be slidingly fitted with valve plate 2 in the described valve body 1; Valve plate 2 rear ends are connected with the joint 11 that passes and stretch out from the quad seal support; The piston rod of said cylinder 3 is fixedly connected with the joint 11 of valve plate 2 rear ends; Said valve plate 2 front ends are shaped to 90 degree arc surfaces 12 with valve pocket front-end face coupling, and bottom flange 5 inner bottom parts are provided with the deep gouge 8 of anti-extrusion along valve body front-end face circular arc direction, also are provided with multiple tracks groove 9 on bottom flange 5 inwalls.
Described quad seal support 6 is installed in through socket head screw 10 in the valve port of valve body 1, the immersion oil packing 7 between the quad seal support 6 front end top clearances.
Be fixedly connected with guide connecting rod 13 between the aft bulkhead of described cylinder 3 and valve body 1.
In the practical operation; In the valve open process; Front end is that the valve plate 2 of 90 ° of arc surfaces moves to cylinder 3 directions under cylinder 3 piston rod tension; Material on valve plate 2 surface of contact has been avoided valve plate 2 and has been formed the bonding dirt with bottom flange 5 extruding because of the existence of antiseized groove 9, has reduced valve effectively and phenomenons such as stuck occurred because of bonding.During valve closing, front end is valve plate 2 throttle down under the thrust of cylinder 3 piston rods of 90 ° of arc surfaces, because of the existence of anti-extrusion deep gouge 8 makes that place, the side material of valve plate 2 can be because of situation such as fitting badly appear in the extruding fouling.
Claims (3)
1. a fluidization is prone to bonding type granular material pneumatic brake plate valve; Include by the identical involutory valve body that connects and composes of upper and lower valve gap capping of shape, also include the cylinder that is arranged on valve body one side, have valve pocket in the valve body; It is characterized in that: said valve body internal valve cavity front-end face is 90 degree arc surfaces; Valve rear end has valve port, is provided with the quad seal support that cooperates with sealing valve port in the valve port, is filled with the immersion oil packing in the gap between quad seal support and the valve port end wall; Be slidingly fitted with valve plate in the described valve body; The valve plate rear end is connected with the joint that passes and stretch out from the quad seal support; The piston rod of said cylinder is fixedly connected with the joint of valve plate rear end; Said valve plate front end is shaped to 90 degree arc surfaces with valve pocket front-end face coupling, and the bottom flange inner bottom part is provided with the deep gouge of anti-extrusion along valve body front-end face circular arc direction, also is provided with the multiple tracks groove on the bottom flange inwall.
2. a kind of fluidization according to claim 1 is prone to bonding type granular material pneumatic brake plate valve; It is characterized in that: described quad seal support is installed in through socket head screw in the valve port of valve body, the immersion oil packing between the quad seal support front end top clearance.
3. a kind of fluidization according to claim 1 is prone to bonding type granular material pneumatic brake plate valve, it is characterized in that: be fixedly connected with guide connecting rod between the aft bulkhead of described cylinder and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200897422U CN202510735U (en) | 2012-03-09 | 2012-03-09 | Pneumatic gate valve for fluidized sticky powdery materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200897422U CN202510735U (en) | 2012-03-09 | 2012-03-09 | Pneumatic gate valve for fluidized sticky powdery materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510735U true CN202510735U (en) | 2012-10-31 |
Family
ID=47063222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200897422U Expired - Fee Related CN202510735U (en) | 2012-03-09 | 2012-03-09 | Pneumatic gate valve for fluidized sticky powdery materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510735U (en) |
-
2012
- 2012-03-09 CN CN2012200897422U patent/CN202510735U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20150309 |
|
| EXPY | Termination of patent right or utility model |