CN2721582Y - Composite abrasive resistant tungsten alloy sealed discharging valve - Google Patents
Composite abrasive resistant tungsten alloy sealed discharging valve Download PDFInfo
- Publication number
- CN2721582Y CN2721582Y CN 200420078910 CN200420078910U CN2721582Y CN 2721582 Y CN2721582 Y CN 2721582Y CN 200420078910 CN200420078910 CN 200420078910 CN 200420078910 U CN200420078910 U CN 200420078910U CN 2721582 Y CN2721582 Y CN 2721582Y
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- CN
- China
- Prior art keywords
- valve
- tungsten alloy
- end cover
- valve body
- lower disc
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- Expired - Fee Related
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- Sliding Valves (AREA)
Abstract
The utility model relates to a composite abrasive resistant tungsten alloy sealed discharging valve for controlling the abrasive and corrosive in and out materials of the dust medium, applied to power plants, mines, lime burning plants, cement factories, etc. The utility model comprises a valve base and a valve body. The valve base comprises an upper end cover, an intermediate body and a lower end cover. The upper end cover is provided with a feed inlet. The lower end cover is provided with a discharge port. The valve body is provided with an upper valve plate and a lower valve plate. A groove loop is arranged in the correspondeding position between the upper valve plate and the lower valve plate. A tungsten alloy sealing ring is arranged in the groove loop. The feed inlet and the discharge port are circular tubes with the consistent diameter of tube. The utility model has the advantages of simple structure, convenient manufacture and installation and flexible start and stop. The phenomenon of the ash and dust deposition is avoided. The sealing ring has the advantages of high temperature resistance, strong abrasion resistance and excellent sealing performance. The service life of the product is prolonged.
Description
Affiliated technical field
The utility model relates to a kind of valve, especially a kind of valve that is applicable to that power plant, mine, Lime Factory, cement mill etc. are controlled the dust medium input and output material that wearing and tearing, corrosion are arranged.
Background technology
General thermal power plant all is equipped with transmission pump, and charging/discharging valve is installed on transmission pump, is used for being controlled at the keying of the access way of transmission pump course of action dry ash system ash, quarrel.But owing to structural reason, general this class charging/discharging valve is because the medium of carrying is solid-state small particles materials such as ash, quarrel, so can produce many deficiencies after the long-term use: the valve place can produce card ash and fouling phenomenon, influence the keying of valve, the seal ring of this type of common valve generally uses pottery, rubber seal or adopts and spray the steel processing on sealing surface, but all exist defective, more crisp as the ceramic seal circle, adopt sealing surface spray steel or rubber seal easy to wear, and rubber seal generally can not be high temperature resistant, and service life is short.
Summary of the invention
In order to improve the sealing property of valve, improve resistance to abrasion, the heat-resisting quantity of seal ring, eliminate the grey fouling phenomenon of card, prolong product service life, by adopting the keying of the effective by-pass valve control of cylinder, and select for use tungsten alloy as the valve sealing ring material.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of complex abrasion-proof tungsten alloy sealed discharging valve, have valve seat and valve body, valve seat is made up of upper end cover, intermediate and bottom end cover, inlet point is arranged on the upper end cover, discharging opening is arranged on the bottom end cover, valve body has last valve block and lower disc, has the groove circle at last valve block and lower disc corresponding position, is provided with the tungsten alloy seal ring in the groove circle.
For can fixed tungsten the alloy seal ring, further: be provided with pressure ring in the groove circle, pressure ring and tungsten alloy seal ring be trapezoidal shape each other, by screw pressure ring is fixed in the groove circle, simultaneously the tungsten alloy seal ring is fixed in the groove circle.
Advanced better cooperation needs are installed, further: inlet point is the consistent pipe of caliber with discharging opening.
In order to realize electronic opening/shutting valve, further: be provided with connecting rod in valve body, connecting rod one end is connected with the valve body connector, and the other end links to each other with valve body cylinder outward; The other two ends of valve body connector link to each other with lower disc inside face centre with last valve block respectively, are provided with cluster spring in valve block connector inside, and the cluster spring two ends link to each other with lower disc inside face centre with last valve block respectively.
The utlity model has following advantage:
1, valve opening and closing is flexible, has avoided card ash and fouling phenomenon;
2, seal ring is high temperature resistant, wear resisting property is strong, and sealing property is excellent, has prolonged product service life;
3, product structure is simple, manufacturing and easy for installation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the local enlarged diagram in sealing surface of the present utility model junction.
Among the figure: 1. valve block 5. lower discs 6. cluster springs 7. tungsten alloy seal rings 8. pressure rings 9. upper end covers 10. bottom end covers 11. intermediates 12. inlet points 13. dischargings 14. groove circles 15. screws on the cylinder 2. connecting rods 3. valve block connectors 4.
The specific embodiment
A kind of complex abrasion-proof tungsten alloy sealed discharging valve of the present utility model, as shown in Figure 1, its concrete structure is: connecting rod 2 one ends link to each other with cylinder 1, the other end links to each other with valve block connector 3, valve block connector 3 T-shaped structures, two ends link to each other with lower disc 5 inside faces with last valve block 4 respectively in addition, be provided with cluster spring 6 in valve block connector 3 inside, cluster spring 6 two ends link to each other with lower disc 5 inside face centres with last valve block 4 respectively, cluster spring 6 has certain predetermincd tension, and the inside face of valve block 4 and lower disc 5 outside faces and upper end cover 9 and bottom end cover 10 is fitted.Be respectively arranged with inlet point 12 and discharging opening 13 on upper end cover 9 and bottom end cover 10, feed pipe 12 is the consistent pipe of caliber with discharging opening 13.Upper end cover 9 forms with discharging opening 13 cast with inlet point 12 and bottom end cover 10, is structure as a whole.Inlet point 12 mouth of pipe places and last valve block 4 outside faces at upper end cover 9, discharging opening 13 mouth of pipe places of bottom end cover 10 and lower disc 5 outside faces correspondence respectively are provided with groove circle 14, as shown in Figure 2, be provided with tungsten alloy seal ring 7 at the groove circle, tungsten alloy seal ring 7 is by being arranged at pressure ring 8 fixed installations in the groove circle 14 equally, pressure ring 8 and tungsten alloy seal ring 7 fall trapezoidal shape each other, by screw 15 pressure ring 8 is fixed in the groove circle 14, tungsten alloy seal ring 7 sealing surfaces and upper end cover 9 and bottom end cover 10 inside faces and to go up valve block 4 equal with lower disc 5 outside faces, pressure ring 8 outside faces are lower than seal ring 7 sealing surfaces, have guaranteed like this to be free to slide on upper end cover 9 that last valve block 4 and lower disc 5 can be in valve casings and the bottom end cover 10.In this was practical, all seal rings 7 all adopted tungsten alloy as material.When cooresponding seal ring 7 overlaps, valve closing, owing between last valve block 4 and lower disc 5, be provided with cluster spring 6, the pressure that exists in the valve body both sides hour relies on the predetermincd tension of cluster spring 6, and two sealing surfaces are fitted tightly, at a lateral pressure during greater than the predetermincd tension of cluster spring 6, will be with the valve block jack-up of this side, and with cluster spring 6 combineds action with other side valve sheet with withstand, so can keep the valve body excellent sealing performance all the time.
Claims (4)
1. complex abrasion-proof tungsten alloy sealed discharging valve, have valve seat and valve body, valve seat is made up of upper end cover (9), intermediate (11) and bottom end cover (10), inlet point (12) is arranged on the upper end cover (10), discharging opening (13) is arranged on the bottom end cover, valve body has last valve block (4) and lower disc (5), it is characterized in that: have groove circle (14) at last valve block (4) and lower disc (5) corresponding position, be provided with tungsten alloy seal ring (7) in the groove circle (14).
2. complex abrasion-proof tungsten alloy sealed discharging valve according to claim 1, it is characterized in that: be provided with pressure ring (8) in the described groove circle (14), pressure ring (8) and tungsten alloy seal ring (7) fall trapezoidal shape each other, by screw (15) pressure ring (8) is fixed in the groove circle (14), simultaneously tungsten alloy seal ring (7) is fixed in the groove circle (14).
3. complex abrasion-proof tungsten alloy sealed discharging valve according to claim 1 is characterized in that: described inlet point (12) is the consistent pipe of caliber with discharging opening (13).
4. complex abrasion-proof tungsten alloy sealed discharging valve according to claim 1 is characterized in that: be provided with connecting rod (2) in valve body, connecting rod (2) one ends are connected with valve body connector (3), and the other end links to each other with valve body cylinder (1) outward; Valve body connector (3) links to each other with lower disc (5) inside face centre with last valve block (4) respectively at two ends in addition, be provided with cluster spring (6) in valve block connector (3) inside, cluster spring (6) two ends link to each other with lower disc (5) inside face centre with last valve block (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420078910 CN2721582Y (en) | 2004-08-22 | 2004-08-22 | Composite abrasive resistant tungsten alloy sealed discharging valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420078910 CN2721582Y (en) | 2004-08-22 | 2004-08-22 | Composite abrasive resistant tungsten alloy sealed discharging valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2721582Y true CN2721582Y (en) | 2005-08-31 |
Family
ID=35011958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420078910 Expired - Fee Related CN2721582Y (en) | 2004-08-22 | 2004-08-22 | Composite abrasive resistant tungsten alloy sealed discharging valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2721582Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745509A (en) * | 2012-07-11 | 2012-10-24 | 于秋月 | Double-sealing discharge device |
-
2004
- 2004-08-22 CN CN 200420078910 patent/CN2721582Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745509A (en) * | 2012-07-11 | 2012-10-24 | 于秋月 | Double-sealing discharge device |
| CN102745509B (en) * | 2012-07-11 | 2015-08-19 | 于秋月 | A kind of double-layer seal device for discharging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050831 Termination date: 20090922 |