CN2795161Y - Split pneumatic plate turnover feeding valve - Google Patents
Split pneumatic plate turnover feeding valve Download PDFInfo
- Publication number
- CN2795161Y CN2795161Y CN 200520101724 CN200520101724U CN2795161Y CN 2795161 Y CN2795161 Y CN 2795161Y CN 200520101724 CN200520101724 CN 200520101724 CN 200520101724 U CN200520101724 U CN 200520101724U CN 2795161 Y CN2795161 Y CN 2795161Y
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- China
- Prior art keywords
- valve
- cylinder
- valve plate
- valve body
- seal ring
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- Expired - Fee Related
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Abstract
The utility model discloses a sectional pneumatic plate-turning-over material feeding valve, wherein a cylinder is arranged on the side of a valve body; a connecting rod arranged on the cylinder is hinged with one end point of one side of an H-shaped valve plate arranged in the valve body by a crank; an upper port of the valve body is provided with an end cover, and the center of the end cover is provided with a through hole; the lower end surface of the end cover is provided with a bulged sealing ring; the connecting rod arranged on the cylinder makes telescopic rotation around a hinge point by the crank to enable the other side of the H-shaped valve plate to be tightly pressed on the bulged sealing ring. The sectional valve is adopted, and the end cover is easy to detach after the valve is arranged on the set position. The valve plate adopts wear resistance ceramics, and the sealing ring adopts wear resistance rubber. The service life of the wear resistance ceramics is far longer than the service life of the wear resistance rubber, so only the sealing ring needs to be replaced. The sealing ring adopts the sealing of two sealing lines in a concentric circle and the valve plate to further increase the sealing performance of the valve. The utility model can be used for the material feeding valve of a sending can in a pneumatic dust-removing system in a coal burning power plant.
Description
Technical field
It is the separation type feed valve with pneumatic platform trap door of propulsion source with pressurized air that the utility model relates to a kind of.
Background technology
The flying dust that current coal-fired power plant produces nearly all adopts electric dust collector or bag dust collector to collect laggard promoting the circulation of qi power and carries.
And at present, major part in the air-transport system sends jar access valve and adopts the imported with original packaging valve, the service life of valve is long more a lot of than homemade access valve, its seal ring service life is minimum can to reach 5～6 months, but the price of valve and seal ring is 5～10 times of homemade valve, can be described as and cost an arm and a leg, so its annual service expenditure is very high.In addition, homemade transmission jar access valve is short service life, and what its seal ring service life was the shortest has only 1～2 month, needs frequent replacing seal ring, and work capacity is very big.
Annual 2 seal rings of replacing that need of the transmission jar access valve of import, homemade access valve is annual need change 5～10 seal rings.And, must dismantle whole valve in case wearing and tearing take place seal ring at present no matter be that its structure of access valve import or homemade all is an integral type.Usually, the weight of such deck valve door is 100～200 kilograms, needs 2～3 people could lift movingly, changes the minimum needs of seal ring 2～4 hours.A general 300MW coal fired power generation unit pneumatic ash removal system need be prepared 32 access valves, and the work capacity of the annual minimum needs of imported valve is 256～384 man-hours, and the work capacity of the annual minimum needs of homemade valve is 768～1152 man-hours.
Summary of the invention
In order to make the transmission jar access valve in the pneumatic ash removal system more durable, be more conducive to repair and maintenance, the purpose of this utility model is to provide a kind of separation type feed valve with pneumatic platform trap door.
The technical scheme that its technical matters that solves the utility model adopts is: it comprises cylinder, valve plate, seal ring, end cap, valve body.Cylinder is contained in side of valve body, connecting rod on the cylinder is hinged with an end points that is contained in I-shape valve plate one side in the valve body through crank, in the middle of being equipped with, the valve body upper port opens the end cap in hole, the seal ring of protrusion is equipped with in the end cap lower surface, connecting rod on the cylinder is flexible to rotate around hinge-point through crank, and the opposite side of I-shape valve plate is pressed on the seal ring of protrusion.
The useful effect that the utlity model has is:
1) adopt split type valve mechanism, behind the valve installation in position, end cap is easy to disassemble, and this valve is changed the once sealing circle and only needed 20～40 minutes work capacity of a people; Work capacity is 1/6～1/12 of a conventional valve;
2) valve plate and seal ring are the easiest worn-down parts in the whole deck valve door, and the valve plate of this valve adopts wear-resistant ceramic, and seal ring adopts antifriction rubber, and the service life of wear-resistant ceramic is more than the long service life of antifriction rubber, so only need to change seal ring usually; In addition, seal ring adopts two concentric circles potted lines of size and valve plate sealing, further improves the sealing property of valve, and can reach 6～12 months the service life of seal ring;
3) maintenance cost of valve is 1/10～1/12 of a conventional valve.
The utility model can be used for the transmission jar inlet valve in coal-fired power plant's pneumatic ash removal system.
Description of drawings
Fig. 1 is a birds-eye view of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is that the B of Fig. 1 is to view.
Among the figure: 1, cylinder, 2, valve plate, 3, seal ring, 4, end cap, 5, valve body, 6, connecting rod, 7, crank.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises cylinder 1, valve plate 2, seal ring 3, end cap 4, valve body 5.Cylinder 1 is contained in the side of valve body 5, connecting rod 6 on the cylinder 1 is hinged with an end points that is contained in I-shape valve plate 2 one sides in the valve body 5 through crank 7, in the middle of being equipped with, valve body 5 upper port open the end cap 4 in hole, the seal ring 3 of protrusion is equipped with in end cap 4 lower surfaces, connecting rod 6 on the cylinder 1 stretches and rotates around hinge-point through crank 7, and another side compression that can make I-shape valve plate 2 is on the seal ring 3 that protrudes.
Described seal ring 3 is the antifriction rubber circle that a sealing lines or two concentric circles potted lines of size are formed.
Described I-shape valve plate 2 materials are wear-resistant ceramic.
During work, cylinder 1 under compressed-air actuated effect, promote connecting rod 6 through crank 7 around hinge-point, valve plate 2 is rotated, when valve plate 2 rotates 90 ° when arriving level attitudes to level attitude by the upright position, valve plate 2 contacts with seal ring 3 and pinch-off seal, and the closing movement of valve is finished.When cylinder 1 lost heart, valve plate 2 unclamped with seal ring 3, and valve plate 2 is rotated to the upright position by level attitude, and when rotating 90 °, the action that valve is opened is finished.
Claims (3)
1, a kind of separation type feed valve with pneumatic platform trap door is characterized in that: comprise cylinder (1), valve plate (2), seal ring (3), end cap (4), valve body (5); Cylinder (1) is contained in the side of valve body (5), connecting rod (6) on the cylinder (1) is hinged with an end points that is contained in I-shape valve plate (2) one sides in the valve body (5) through crank (7), in the middle of being equipped with, valve body (5) upper port opens the end cap (4) in hole, the seal ring (3) of protrusion is equipped with in end cap (4) lower surface, connecting rod (6) on the cylinder (1) is flexible to rotate around hinge-point through crank (7), and the opposite side of I-shape valve plate (2) is pressed on the seal ring (3) of protrusion.
2, separation type feed valve with pneumatic platform trap door according to claim 1 is characterized in that: described seal ring (3) is the antifriction rubber circle that a circular seal line or two concentric circles potted lines of size are formed.
3, separation type feed valve with pneumatic platform trap door according to claim 1 is characterized in that: described I-shape valve plate (2) material is a wear-resistant ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520101724 CN2795161Y (en) | 2005-04-20 | 2005-04-20 | Split pneumatic plate turnover feeding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520101724 CN2795161Y (en) | 2005-04-20 | 2005-04-20 | Split pneumatic plate turnover feeding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795161Y true CN2795161Y (en) | 2006-07-12 |
Family
ID=36812921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520101724 Expired - Fee Related CN2795161Y (en) | 2005-04-20 | 2005-04-20 | Split pneumatic plate turnover feeding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795161Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612916A (en) * | 2013-11-29 | 2014-03-05 | 上海天顺环保设备有限公司 | Flip plate type feeding device |
-
2005
- 2005-04-20 CN CN 200520101724 patent/CN2795161Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612916A (en) * | 2013-11-29 | 2014-03-05 | 上海天顺环保设备有限公司 | Flip plate type feeding device |
| CN103612916B (en) * | 2013-11-29 | 2016-03-16 | 上海天顺环保设备有限公司 | A kind of turnover plate type feeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |