CN216519697U

CN216519697U - High-temperature high-pressure dual self-sealing electric gate valve

Info

Publication number: CN216519697U
Application number: CN202123045584.9U
Authority: CN
Inventors: 刘国联
Original assignee: Yancheng Fuye Hydraulic Parts Co ltd
Current assignee: Yancheng Fuye Hydraulic Parts Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-13
Anticipated expiration: 2031-12-06

Abstract

The utility model relates to a high-temperature high-pressure dual self-sealing electric gate valve which comprises a valve body, wherein a valve cover is arranged at the top end of the valve body, a valve rod penetrates through the valve cover, a valve core is arranged at the bottom end of the valve rod, an electric device is arranged at the top end of the valve rod, a support is arranged between the electric device and the valve cover, a limiting ring is arranged inside the valve body, a first sealing ring is arranged at the upper end of the limiting ring, a second sealing ring is arranged on the valve rod, a sealing lug is arranged at the lower end face of the second sealing ring, a sealing groove is formed in the upper end face of the first sealing ring corresponding to the sealing lug, a first threaded hole is formed in the valve cover, a second threaded hole is formed in the upper end face of the valve body corresponding to the first threaded hole, a plurality of first threaded holes and a plurality of second threaded holes are formed in the first threaded holes and the second threaded holes, and the plurality of first threaded holes are connected through bolts; the first sealing ring and the second sealing ring are designed to enhance the overall sealing effect; the valve core is designed, so that the valve core is convenient to replace; the practicality is improved in the design of connecting seat.

Description

High-temperature high-pressure dual self-sealing electric gate valve

Technical Field

The utility model relates to the technical field of locking valves, in particular to a high-temperature high-pressure double self-sealing electric gate valve.

Background

The steam pipeline control system in the fields of power stations, metallurgy, chemical industry, oil fields and the like is widely applied. However, in the high-temperature high-pressure steam pipeline, water particles in the steam can bring huge impact damage to the valve under the driving of high-speed steam. Particularly, in the moment of opening and closing the valve, the flow rate is increased instantaneously, the water impact on the sealing surface is very large, the flushing is very serious, meanwhile, the fluid resistance is large when the existing valve is opened and closed, the flushing is serious, the sealing surface is seriously flushed and damaged after long-time use, the service life is short, and the valve is easy to leak when the pressure and the temperature are overhigh, the existing patent such as the patent No. 201620277798.9 comprises a valve body, a flashboard, a valve rod, a valve core, an electric device and the like, although the whole device is not easy to generate fatigue cracks under the severe working conditions of high temperature and high pressure when the device is used for a long time, the reliability is high after long-time use, the inner valve core of the device is easy to damage after being used for a long time, the device needs to be integrally replaced, the device is inconvenient to be disassembled, the valve core is inconvenient to be replaced, the production cost is higher, and the connecting end of the whole device is inconvenient to be replaced according to the external use condition, the practicability is lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a high-temperature high-pressure double self-sealing electric gate valve.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: high temperature high pressure dual self sealss electric gate valve, including the valve body, the valve body top is equipped with the valve gap, run through on the valve gap and be equipped with the valve rod, the valve rod bottom is equipped with the case, the valve rod top is equipped with electric actuator, be equipped with the support between electric actuator and the valve gap, the inside spacing ring that is equipped with of valve body, the spacing ring upper end is equipped with first sealing ring, be equipped with the second sealing ring on the valve rod, the terminal surface is equipped with sealed lug under the second sealing ring, first sealing ring up end corresponds sealed recess has been seted up to sealed lug, first screw hole has been seted up on the valve gap, the valve body up end corresponds second screw hole has been seted up to first screw hole, first screw hole and second screw hole all are provided with a plurality ofly, and is a plurality of first screw hole and second screw hole pass through bolted connection.

Preferably, the valve core is provided with a through hole corresponding to the valve rod, the bottom end of the valve core is provided with a sealing gasket, the sealing gasket is provided with a first mounting hole, the bottom end of the valve rod is provided with a second mounting hole corresponding to the first mounting hole, and the first mounting hole and the second mounting hole are connected through a bolt, so that the valve core is convenient to disassemble and assemble.

Preferably in a further aspect, the bottom end inside the valve body is provided with a limiting groove corresponding to the sealing gasket, so that the sealing gasket is limited and clamped.

In a further preferred mode, a sealing seat is arranged in the valve body corresponding to the valve core, so that the sealing effect between the valve body and the valve core is guaranteed.

Preferably in further, both ends all are equipped with the connecting seat about the valve body, two the connecting seat all is provided with the multiunit, multiunit the connecting seat variation in size sets up, and is a plurality of all be equipped with the collar on the connecting seat, collar and valve body threaded connection conveniently change the connecting seat size.

Preferably in further, a plurality of connecting holes are formed in the connecting seats, and a plurality of connecting holes are formed in the circumferential direction of the connecting holes, so that the connecting seats can be conveniently connected with the outside.

Preferably in further, both ends all correspond about the valve body the collar is equipped with the sealing washer, guarantee the sealed effect between collar and the valve body.

(III) advantageous effects

Compared with the prior art, the utility model provides a high-temperature high-pressure double self-sealing electric gate valve, which has the following beneficial effects:

according to the utility model, due to the design of the first sealing ring and the second sealing ring, when the valve cover and the valve body are correspondingly installed, the second sealing ring on the valve rod is matched with the first sealing ring in the valve body, and the second sealing ring with the sealing lug is matched and sealed with the first sealing ring with the sealing groove, so that the overall sealing effect is enhanced;

the valve core is designed, the valve cover, the valve rod, the support, the electric device and other integral structures are disassembled, after the disassembly, the bolts in the first mounting hole and the second mounting hole are taken out, the valve core with the sealing gasket is disassembled, and the valve core and the sealing gasket are of an integral structure and are convenient to replace;

the design of connecting seat chooses the connecting seat of suitable size for use according to external pipeline, corresponds the valve body installation with the connecting seat of suitable size, and collar and valve body screw-thread fit on the connecting seat realize rotating the connection, connect the completion back, and the sealing washer in the valve body realizes sealedly to the gap between valve body and the collar, corresponds external pipeline and connecting seat and connects, and the bolt passes the connecting hole of connecting seat and external pipeline screws up fixedly, and convenient and external different pipelines are connected, improve the practicality.

Drawings

FIG. 1 is a schematic view of the preferred overall structure of the high-temperature high-pressure dual self-sealing electric gate valve of the present invention;

FIG. 2 is a sectional view of the internal structure of a valve body of the high-temperature high-pressure dual self-sealing electric gate valve of the present invention, preferably with a valve cap, a valve rod, a bracket and an electric device installed;

FIG. 3 is a schematic view of a preferred valve cap, valve rod, electric device, bracket, second sealing ring and sealing protrusion matching structure of the high-temperature high-pressure dual self-sealing electric gate valve of the present invention;

fig. 4 is a sectional view showing an internal structure of a valve body of a preferred high-temperature and high-pressure dual self-sealing electric gate valve according to the present invention.

In the figure: 1. a valve body; 2. a valve cover; 3. a valve stem; 4. a valve core; 5. a support; 6. a limiting ring; 7. a first seal ring; 8. a second seal ring; 9. sealing the bump; 10. sealing the groove; 11. a first threaded hole; 12. a second threaded hole; 13. a through hole; 14. a gasket; 15. a first mounting hole; 16. a second mounting hole; 17. a limiting groove; 18. a sealing seat; 19. a connecting seat; 20. a mounting ring; 21. connecting holes; 22. a seal ring; 23. an electric device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

please refer to fig. 1-4, the high-temperature and high-pressure dual self-sealing electric gate valve includes a valve body 1, a valve cover 2 is arranged at the top end of the valve body 1, a valve rod 3 is arranged on the valve cover 2 in a penetrating manner, a valve core 4 is arranged at the bottom end of the valve rod 3, an electric device 23 is arranged at the top end of the valve rod 3, a support 5 is arranged between the electric device 23 and the valve cover 2, a limit ring 6 is arranged inside the valve body 1, a first sealing ring 7 is arranged at the upper end of the limit ring 6, a second sealing ring 8 is arranged on the valve rod 3, a sealing bump 9 is arranged at the lower end face of the second sealing ring 8, a sealing groove 10 is arranged at the upper end face of the first sealing ring 7 corresponding to the sealing bump 9, a first threaded hole 11 is arranged on the valve cover 2, a second threaded hole 12 is arranged at the upper end face of the valve body 1 corresponding to the first threaded hole 11, a plurality of first threaded holes 11 and a plurality of second threaded holes 12 are arranged, and the plurality of the first threaded holes 11 and the second threaded holes 12 are connected through bolts.

Referring to fig. 2-4, in this embodiment, a through hole 13 is formed on the valve core 4 corresponding to the valve rod 3, a sealing gasket 14 is disposed at the bottom end of the valve core 4, a first mounting hole 15 is formed on the sealing gasket 14, a second mounting hole 16 is formed at the bottom end of the valve rod 3 corresponding to the first mounting hole 15, the first mounting hole 15 and the second mounting hole 16 are connected by a bolt, a limiting groove 17 is formed at the bottom end inside the valve body 1 corresponding to the sealing gasket 14, a sealing seat 18 is disposed inside the valve body 1 corresponding to the valve core 4, the bolt in the first mounting hole 15 and the bolt in the second mounting hole 16 are taken out, the valve core 4 with the sealing gasket 14 is disassembled, the valve core 4 and the sealing gasket 14 are of an integrated structure, and then the valve core 4 is replaced, after the replacement is finished, the valve rod 3 passes through the through hole 13 and is installed on the valve core 4, the bolt passes through the first installation hole 15 and the second installation hole 16 and is screwed and fixed, and the valve body 1 and the valve core 4 are matched and sealed through the sealing seat 18.

Referring to fig. 1 and 2, in the present embodiment, the left and right ends of the valve body 1 are respectively provided with a plurality of connecting seats 19, the two connecting seats 19 are respectively provided with a plurality of sets of connecting seats 19, the connecting seats 19 are arranged in different sizes, the mounting rings 20 are respectively provided on the connecting seats 19, the mounting rings 20 are in threaded connection with the valve body 1, the connecting holes 21 are respectively provided on the connecting seats 19, a plurality of connecting holes 21 are provided in the circumferential direction, the left and right ends inside the valve body 1 are respectively provided with a sealing ring 22 corresponding to the mounting rings 20, a connecting seat 19 with a proper size is selected according to an external pipeline, the connecting seat 19 with a proper size is installed corresponding to the valve body 1, a mounting ring 20 on the connecting seat 19 is in threaded fit with the valve body 1 to realize rotary connection, after the connection is finished, the sealing ring 22 in the valve body 1 seals a gap between the valve body 1 and the mounting ring 20, the external pipeline is correspondingly connected with the connecting seat 19, and the bolt penetrates through the connecting hole 21 of the connecting seat 19 and is screwed and fixed with the external pipeline.

Example two:

in summary, when in use, firstly, a connecting seat 19 with a proper size is selected according to an external pipeline, the connecting seat 19 with a proper size is installed corresponding to the valve body 1, a mounting ring 20 on the connecting seat 19 is in threaded fit with the valve body 1 to realize rotary connection, after the connection is completed, a sealing ring 22 in the valve body 1 seals a gap between the valve body 1 and the mounting ring 20 to correspondingly connect the external pipeline and the connecting seat 19, a bolt passes through a connecting hole 21 of the connecting seat 19 to be screwed and fixed with the external pipeline to realize integral installation, the valve body is put into use after the installation is completed, an electric device 23 is connected with an external power supply, the external power supply controls the electric device 23, a driving device controls the valve rod 3, the valve rod 3 drives the valve core 4 to ascend and descend in the valve body 1, the valve core 4 descends to be matched with the valve body 1 with the sealing seats 18 on two sides to realize integral closing, the valve core 4 moves upwards to realize integral opening, the second sealing ring 8 with the sealing convex block 9 and the first sealing ring 7 with the sealing groove 10 are matched and sealed, and the overall sealing effect is enhanced.

Example three:

in conclusion, when the valve core 4 is used, the valve core 4 moves downwards and simultaneously drives the sealing gasket 14 to enter the limiting groove 17 downwards, the sealing effect is improved, the valve core 4 is seriously damaged after being used for a long time, the whole device is disassembled after the whole pipeline is closed, the bolts in the first threaded hole 11 and the second threaded hole 12 are taken out, the valve cover 2, the valve rod 3, the bracket 5, the electric device 23 and other whole structures are disassembled, after the disassembly, the bolts in the first mounting hole 15 and the second mounting hole 16 are taken out, the valve core 4 with the sealing gasket 14 is disassembled, the valve core 4 and the sealing gasket 14 are integrated, the valve core 4 is further replaced, after the replacement is finished, the valve rod 3 passes through the through hole 13 to be mounted on the valve core 4, the bolts pass through the first mounting hole 15 and the second mounting hole 16 to be screwed and fixed, after the replacement is finished, the whole structures such as the valve cover 2, the valve rod 3, the bracket 5 and the electric device 23 are mounted, the device is put into use again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. High-temperature and high-pressure dual self-sealing electric gate valve, which comprises a valve body (1), wherein a valve cover (2) is arranged at the top end of the valve body (1), a valve rod (3) penetrates through the valve cover (2), a valve core (4) is arranged at the bottom end of the valve rod (3), an electric device (23) is arranged at the top end of the valve rod (3), a support (5) is arranged between the electric device (23) and the valve cover (2), the high-temperature and high-pressure dual self-sealing electric gate valve is characterized in that a limiting ring (6) is arranged inside the valve body (1), a first sealing ring (7) is arranged at the upper end of the limiting ring (6), a second sealing ring (8) is arranged on the valve rod (3), a sealing lug (9) is arranged on the lower end face of the second sealing ring (8), a sealing groove (10) is formed in the upper end face of the first sealing ring (7) corresponding to the sealing lug (9), and a first threaded hole (11) is formed in the valve cover (2), the upper end face of the valve body (1) corresponds to the first threaded hole (11) and is provided with a second threaded hole (12), the first threaded hole (11) and the second threaded hole (12) are both provided with a plurality of threaded holes, and the first threaded hole (11) and the second threaded hole (12) are connected through bolts.

2. The high-temperature high-pressure dual self-sealing electric gate valve according to claim 1, wherein: the valve core (4) is provided with a through hole (13) corresponding to the valve rod (3), the bottom end of the valve core (4) is provided with a sealing gasket (14), the sealing gasket (14) is provided with a first mounting hole (15), the bottom end of the valve rod (3) is provided with a second mounting hole (16) corresponding to the first mounting hole (15), and the first mounting hole (15) and the second mounting hole (16) are connected through a bolt.

3. The high-temperature high-pressure dual self-sealing electric gate valve according to claim 2, wherein: the bottom end in the valve body (1) is provided with a limit groove (17) corresponding to the sealing gasket (14).

4. The high-temperature high-pressure dual self-sealing electric gate valve according to claim 3, wherein: and a sealing seat (18) is arranged in the valve body (1) corresponding to the valve core (4).

5. The high-temperature high-pressure dual self-sealing electric gate valve according to claim 1, wherein: both ends all are equipped with connecting seat (19) about valve body (1), two connecting seat (19) all are provided with the multiunit, multiunit connecting seat (19) variation in size sets up, and is a plurality of all be equipped with collar (20) on connecting seat (19), collar (20) and valve body (1) threaded connection.

6. The high temperature and high pressure dual self-sealing electric gate valve of claim 5, wherein: a plurality of connecting holes (21) are formed in the connecting seats (19), and a plurality of connecting holes (21) are formed in the circumferential direction.

7. The high temperature and high pressure dual self-sealing electric gate valve of claim 5, wherein: the left end and the right end inside the valve body (1) correspond to the mounting ring (20) and are provided with sealing rings (22).