CN213629005U - Rigid sealing device for dome valve - Google Patents
Rigid sealing device for dome valve Download PDFInfo
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- CN213629005U CN213629005U CN202022857196.XU CN202022857196U CN213629005U CN 213629005 U CN213629005 U CN 213629005U CN 202022857196 U CN202022857196 U CN 202022857196U CN 213629005 U CN213629005 U CN 213629005U
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- iron shell
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Abstract
The utility model discloses a calotte valve rigidity sealing device, including cast iron shell, cast iron shell upper end is equipped with rigidity sealing mechanism, cast iron shell inboard is equipped with rotates hemisphere switching mechanism. The beneficial effects of the utility model are that, through the effect of rigid seal mechanism can improve the operating temperature and the operating pressure of dome valve by a wide margin, prolong the life of sealing washer, reduce use cost.
Description
Technical Field
The utility model relates to a pipeline diverter valve seals technical field, and more specifically says, relates to a calotte valve rigidity sealing device.
Background
The dome valve is applied to a valve for switching pipelines in a powder (powder, granular material and powder-particle mixture) conveying system, and is widely applied to industries such as steel, cement, electric power and the like;
sealing device in the traditional dome valve is aerifyd through simple rubber seal and contacts with the case and realize sealed effect, because the problem of material, rubber seal's service environment temperature and pressure upper limit are lower, when too big or the high temperature of pressure, can aggravate rubber seal's ageing failure, and the durability is relatively poor, needs frequent change rubber seal, increases down time and use cost.
SUMMERY OF THE UTILITY MODEL
To overcome the above disadvantages, the present invention provides a dome valve rigid seal device to solve the problems.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rigid sealing device for a dome valve comprises a cast iron shell, wherein a rigid sealing mechanism is arranged at the upper end of the cast iron shell, and a rotating hemisphere switching mechanism is arranged on the inner side of the cast iron shell;
the rigid sealing mechanism comprises a feeding flange interface at the upper end of a cast iron shell, a discharging flange interface is installed at the lower end of the cast iron shell, a fastening bolt I is installed between the feeding flange interface and the cast iron shell, a fastening bolt II is installed between the discharging flange interface and the cast iron shell, an annular gas groove is formed at the lower end of the feeding flange interface, an L-shaped gas channel is formed at one end of the annular gas groove, an air inlet joint is installed at one end of the L-shaped gas channel, a fixed support ring is installed at the lower end of the annular gas groove, a spring groove is formed at the lower end of the fixed support ring, a compression spring is installed at one end of the spring groove, a limit groove is formed at the upper end of the annular gas groove, a rigid sealing ring is installed at the upper end of the annular gas groove, the upper end; the lower end of the limiting groove is provided with a first sealing groove, the side surface of the fixed support ring is provided with a second sealing groove, the upper surface of the fixed support ring is provided with a third sealing groove, and sealing rings are arranged on the inner sides of the first sealing groove, the second sealing groove and the third sealing groove;
the rotating hemisphere switching mechanism comprises circular through holes in two sides of a cast iron shell, a first bearing is installed at one end of each circular through hole, a rotating shaft is installed on an inner ring of each bearing, a rotating hemisphere is installed at one end of the rotating shaft, two ends of each rotating hemisphere are fixedly connected with the rotating shaft, a pneumatic motor is installed at one end of the cast iron shell, and the output end of the pneumatic motor is fixedly connected with the rotating shaft.
Furthermore, a sealing gasket is arranged on the side surface of the circular through hole.
Furthermore, threaded holes are respectively formed in one ends of the feeding flange connector and the discharging flange connector.
The utility model has the advantages that: the rigid sealing mechanism can greatly improve the working temperature and the working pressure of the dome valve, prolong the service life of the sealing ring and reduce the use cost.
Drawings
FIG. 1 is a schematic view of a dome valve rigid seal according to the present invention;
FIG. 2 is an enlarged schematic view of the rigid sealing mechanism;
in the figure, 1, a cast iron shell; 2. a feed flange interface; 3. a discharge flange interface; 4. fastening a first bolt; 5. fastening a second bolt; 6. an annular gas groove; 7. an L-shaped airway; 8. an air inlet joint; 9. fixing the support ring; 10. a spring slot; 11. a compression spring; 12. a limiting groove; 13. a rigid seal ring; 14. a pin; 15. a first sealing groove; 16. a second sealing groove; 17. a third sealing groove; 18. a seal ring; 19. a circular through hole; 20. a first bearing; 21. a rotating shaft; 22. rotating the hemisphere; 23. a pneumatic motor; 24. a gasket; 25. a threaded bore.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings, and as shown in fig. 1-2, a dome valve rigid sealing device comprises a cast iron housing 1, a rigid sealing mechanism is arranged at the upper end of the cast iron housing 1, and a rotating hemisphere switching mechanism is arranged at the inner side of the cast iron housing 1;
the rigid sealing mechanism comprises a feeding flange interface 2 at the upper end of a cast iron shell 1, a discharging flange interface 3 is installed at the lower end of the cast iron shell 1, a fastening bolt I4 is installed between the feeding flange interface 2 and the cast iron shell 1, a fastening bolt II 5 is installed between the discharging flange interface 3 and the cast iron shell 1, an annular gas groove 6 is opened at the lower end of the feeding flange interface 2, an L-shaped gas channel 7 is opened at one end of the annular gas groove 6, an air inlet joint 8 is installed at one end of the L-shaped gas channel 7, a fixed support ring 9 is installed at the lower end of the annular gas groove 6, a spring groove 10 is opened at the lower end of the fixed support ring 9, a compression spring 11 is installed at one end of the spring groove 10, a limit groove 12 is opened at the upper end of the annular gas groove 6, a rigid sealing ring 13 is installed at the upper end of the annular gas groove 6, the pin 14 is connected with the spring groove 10 in a sliding way; the lower end of the limiting groove 12 is provided with a first sealing groove 15, the side surface of the fixed supporting ring 9 is provided with a second sealing groove 16, the upper surface of the fixed supporting ring 9 is provided with a third sealing groove 17, and the inner sides of the first sealing groove 15, the second sealing groove 16 and the third sealing groove 17 are provided with sealing rings 18;
the rotating hemisphere switching mechanism comprises circular through holes 19 on two sides of a cast iron shell 1, a first bearing 20 is installed at one end of each circular through hole 19, a rotating shaft 21 is installed on an inner ring of the first bearing 20, a rotating hemisphere 22 is installed at one end of the rotating shaft 21, two ends of the rotating hemisphere 22 are fixedly connected with the rotating shaft 21, a pneumatic motor 23 is installed at one end of the cast iron shell 1, and the output end of the pneumatic motor 23 is fixedly connected with the rotating shaft 21.
The side surface of the circular through hole 19 is provided with a sealing gasket 24.
Threaded holes 25 are respectively formed in one ends of the feeding flange connector 2 and the discharging flange connector 3.
In the embodiment, the gas equipment of the equipment is controlled by an external controller, the device is provided with a corresponding gas pump, the output end of the gas pump is connected with the gas inlet joint 8 and the pneumatic motor 23, and when the dome valve is used, an external material conveying pipeline is butted with the feeding flange joint 2 and the discharging flange joint 3 through bolts; when the dome valve is in a sealed state, the controller controls the air pump to work, air pressure is enabled to enter the annular air groove 6 from the air inlet joint 8 through the L-shaped air passage 7 by the work of the air pump, the annular air groove 6 has certain air pressure, the rigid sealing ring 13 is pressed by the air pressure, the rigid sealing ring 13 moves downwards, the lower end of the rigid sealing ring 13 is enabled to be in contact with and attached to the rotating hemisphere 22, feeding blocking is completed, and the purpose of sealing is achieved; when the dome valve is switched from a sealing state to an opening state, the controller controls the air pump to stop supplying air into the annular air groove 6, the air pressure in the annular air groove 6 is reduced, the elastic force of the compression spring 11 is utilized to overcome the pressure in the annular air groove 6, the rigid sealing ring 13 is separated from the rotating hemisphere 22, then the controller controls the air pump to transmit air into the pneumatic motor 23, the pneumatic motor 23 drives the rotating hemisphere 22 to rotate for 90 degrees, and materials are output from the discharging flange interface 3 through the feeding flange interface 2 and the inner cavity of the cast iron shell 1, so that the purpose of conveying the materials is achieved.
Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.
Claims (3)
1. A rigid sealing device of a dome valve comprises a cast iron shell (1), and is characterized in that a rigid sealing mechanism is arranged at the upper end of the cast iron shell (1), and a rotary hemisphere switching mechanism is arranged on the inner side of the cast iron shell (1);
the rigid sealing mechanism comprises a feeding flange interface (2) at the upper end of a cast iron shell (1), a discharging flange interface (3) is installed at the lower end of the cast iron shell (1), a fastening bolt I (4) is installed between the feeding flange interface (2) and the cast iron shell (1), a fastening bolt II (5) is installed between the discharging flange interface (3) and the cast iron shell (1), an annular gas groove (6) is formed at the lower end of the feeding flange interface (2), an L-shaped gas channel (7) is formed at one end of the annular gas groove (6), a gas inlet joint (8) is installed at one end of the L-shaped gas channel (7), a fixed support ring (9) is installed at the lower end of the annular gas groove (6), a spring groove (10) is formed at the lower end of the fixed support ring (9), a compression spring (11) is installed at one end of the spring groove (10), a limit groove (12) is formed at, the upper end of the rigid sealing ring (13) is connected with the limiting groove (12) in a sliding manner, the lower end of the rigid sealing ring (13) is connected with the fixed supporting ring (9) in a sliding manner, the lower end of the rigid sealing ring (13) is provided with a pin (14), and the pin (14) is connected with the spring groove (10) in a sliding manner; a first sealing groove (15) is formed in the lower end of the limiting groove (12), a second sealing groove (16) is formed in the side surface of the fixed supporting ring (9), a third sealing groove (17) is formed in the upper surface of the fixed supporting ring (9), and sealing rings (18) are installed on the inner sides of the first sealing groove (15), the second sealing groove (16) and the third sealing groove (17);
the rotary hemisphere switching mechanism comprises circular through holes (19) on two sides of a cast iron shell (1), a first bearing (20) is installed at one end of each circular through hole (19), a rotating shaft (21) is installed at the inner ring of the first bearing (20), a rotary hemisphere (22) is installed at one end of the rotating shaft (21), two ends of the rotary hemisphere (22) are fixedly connected with the rotating shaft (21), a pneumatic motor (23) is installed at one end of the cast iron shell (1), and the output end of the pneumatic motor (23) is fixedly connected with the rotating shaft (21).
2. A rigid seal of a dome valve as set forth in claim 1 wherein a gasket (24) is fitted to the side surface of the circular through hole (19).
3. A dome valve rigid seal as defined in claim 1 wherein the inlet flange port (2) and the outlet flange port (3) are each provided with a threaded bore (25) at one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022857196.XU CN213629005U (en) | 2020-12-03 | 2020-12-03 | Rigid sealing device for dome valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022857196.XU CN213629005U (en) | 2020-12-03 | 2020-12-03 | Rigid sealing device for dome valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213629005U true CN213629005U (en) | 2021-07-06 |
Family
ID=76639619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022857196.XU Active CN213629005U (en) | 2020-12-03 | 2020-12-03 | Rigid sealing device for dome valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213629005U (en) |
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2020
- 2020-12-03 CN CN202022857196.XU patent/CN213629005U/en active Active
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