CN213954356U - Reinforced low-temperature bellows sealing stop valve - Google Patents
Reinforced low-temperature bellows sealing stop valve Download PDFInfo
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- CN213954356U CN213954356U CN202120028164.0U CN202120028164U CN213954356U CN 213954356 U CN213954356 U CN 213954356U CN 202120028164 U CN202120028164 U CN 202120028164U CN 213954356 U CN213954356 U CN 213954356U
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Abstract
The utility model relates to the technical field of stop valve equipment, in particular to a reinforced low-temperature bellows sealing stop valve, which comprises a valve body, wherein the top end of the valve body is connected with a hand wheel, the inner end of the bottom of the hand wheel is connected with a valve rod, the outer end of the top of the valve rod is connected with a valve nut, the bottom end of the outside of the valve rod, which is positioned at the valve nut, is connected with a gland, the bottom end of the gland is filled with filler, the bottom end of the valve rod is connected with a bellows assembly, the bottom end of the outside of the valve rod, which is positioned at the bellows assembly, is connected with a sealing ring, the upper surface of the valve body is fixedly connected with a valve cover through a nut and a bolt, the bottom of the valve cover is hermetically connected with a gasket, and through the arranged bellows assembly and the filler, the sealing stop valve in the utility model has the characteristics of low temperature resistance and good sealing effect, reasonable structure, excellent performance and beautiful appearance, therefore, the universal popularization and the use can be realized, and the equipment is more convenient to use.
Description
Technical Field
The utility model relates to a stop valve equipment technical field specifically is a strenghthened type low temperature bellows seal stop valve.
Background
The valve is a control component in a pipeline fluid conveying system, is used for changing the flow direction of a passage and has the functions of diversion, cut-off, throttling, non-return, shunt or overflow pressure relief and the like, is used for a valve for fluid control, can be used for controlling various types of fluids such as water, steam, oil products, gas, slurry, various corrosive media, liquid metal, radioactive fluid and the like to flow from the simplest stop valve to various valves used in a very complicated automatic control system, has various varieties and specifications, can be used for controlling the flow of various types of fluids such as water, steam, oil products, gas, slurry, various corrosive media, liquid metal, radioactive fluid and the like, has the working pressure of 0.0013MPa to 1000MPa and the working temperature of-269 ℃ to 1430 ℃ and is a bellows seal stop valve for controlling the flow, is a bellows seal stop valve which is manufactured by introducing foreign advanced technology and adopting foreign bellows metal sealing technology and has high performance, the telescopic fatigue life is very long, the design of the bellows seal is adopted, the defects that the packing seal of the valve rod of the common valve is aged quickly and easy to leak are completely eliminated, the energy utilization efficiency is improved, the safety of production equipment is increased, the maintenance cost and frequent maintenance are reduced, and a clean and safe working environment is also provided.
Although the corrugated pipe stop valve on the market is various, most of the corrugated pipe stop valves are only changed in form, the functions of the corrugated pipe stop valves are not changed greatly, the corrugated pipe stop valve is easy to leak after being used for a long time, the sealing efficiency and the low-temperature resistant effect are poor, the service life of the corrugated pipe stop valve is short, and therefore a reinforced low-temperature corrugated pipe sealing stop valve is needed to change the current situation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a strenghthened type low temperature bellows seals stop valve to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a strenghthened type low temperature bellows seal stop valve, includes the valve body, the valve body top is connected with the hand wheel, hand wheel bottom the inner is connected with the valve rod, valve rod top outer end is connected with the valve nut, the valve rod outside is located the female bottom of valve and is connected with valve-stem nut, the valve-stem nut bottom is connected with gland, gland bottom packing has the filler, the valve rod bottom is connected with the bellows subassembly, the bottom that the valve rod outside is located the bellows subassembly is connected with the sealing ring, the valve rod is connected with the valve clack bottom, the valve clack top is fixed with the valve clack lid, nut and bolt fixedly connected with valve gap are passed through to the valve body upper surface, valve cover bottom sealing connection has the gasket, the welding of valve body outer end intermediate position has the reinforcing disc.
Preferably, the valve body is a low temperature resistant structure.
Preferably, two groups of channels are symmetrically formed in two ends of the valve body.
Preferably, the bottommost end of the valve rod penetrates through the valve clack cover and is movably connected with the valve clack.
Preferably, the valve nut and the valve rod are connected through threads.
Preferably, the top end of the valve rod and the inner part of the bottom end of the hand wheel are clamped and fixed.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, bellows subassembly and filler through setting up, constitute double seal structure through inside multiple bellows of bellows subassembly and filler, thereby can effectually avoid outside liquid to corrode the valve rod, after bellows subassembly became invalid, still can seal the effect through the filler, the holistic sealed effect of stop valve has been strengthened, and the valve body is low temperature resistant structure, ensure that the stop valve can use under the low temperature condition, the safety and the reliability of valve body have been guaranteed, the application range of stop valve has been enlarged, the life of stop valve has been prolonged, through welding at valve body outer end intermediate position there is the reinforcing disc, and then carry out the improvement of intensity to the valve body through the reinforcing disc, steadiness when having improved the valve body and using, the utility model provides a sealed stop valve not only possesses low temperature resistant, sealed effectual characteristics, rational in infrastructure moreover, Excellent performance and handsome in appearance to can reach and generally use widely, make the convenience more when equipment uses.
Drawings
FIG. 1 is a general schematic view of the present invention;
FIG. 2 is an enlarged schematic view of point A of the present invention;
FIG. 3 is an enlarged schematic view of point B of the present invention;
in the figure: 1. a valve body; 2. a hand wheel; 3. a valve stem; 4. a valve nut; 5. a valve stem nut; 6. a packing gland; 7. a filler; 8. a bellows assembly; 9. a seal ring; 10. a valve flap; 11. a valve flap cover; 12. a nut; 13. a bolt; 14. a valve cover; 15. a gasket; 16. a reinforcing disk.
Detailed Description
The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Please refer to fig. 1-3, the present invention provides a technical solution:
a reinforced low-temperature bellows sealing stop valve comprises a valve body 1, wherein the top end of the valve body 1 is connected with a hand wheel 2, the inner end of the bottom of the hand wheel 2 is connected with a valve rod 3, the outer end of the top of the valve rod 3 is connected with a valve nut 4, the bottom end of the outer part of the valve rod 3, which is positioned on the valve nut 4, is connected with a valve rod nut 5, the bottom end of the valve rod nut 5 is connected with a packing gland 6, the bottom end of the packing gland 6 is filled with packing 7, the bottom end of the valve rod 3 is connected with a bellows assembly 8, the bottom end of the outer part of the valve rod 3 is connected with a sealing ring 9, the bottommost end of the valve rod 3 is connected with a valve flap 10, the top end of the valve flap 10 is fixed with a valve flap cover 11, the upper surface of the valve body 1 is fixedly connected with a valve cover 14 through a nut 12 and a bolt 13, the bottom of the valve cover 14 is hermetically connected with a gasket 15, a reinforcing disc 16 is welded at the middle position of the outer end of the valve body 1, and the bellows assembly 8 and the packing 7 form a double sealing structure through the bellows and the packing 7, thereby effectively avoiding the erosion of the valve rod 3 by external liquid, when the bellows component 8 fails, the sealing function can still be performed through the packing 7, the whole sealing effect of the stop valve is enhanced, the valve body 1 is of a low temperature resistant structure, the stop valve can be ensured to be used under the low temperature condition, the safety and the reliability of the valve body 1 are ensured, the application range of the stop valve is enlarged, the service life of the stop valve is prolonged, the reinforcing disc 16 is welded at the middle position of the outer end of the valve body 1, the strength of the valve body 1 is further improved through the reinforcing disc 16, the stability of the valve body 1 in use is improved, the sealing stop valve in the utility model not only has the characteristics of low temperature resistance and good sealing effect, but also has reasonable structure, excellent performance and beautiful appearance, thereby being capable of achieving the common popularization and use, and leading the use of equipment to be more convenient, has certain popularization value.
The utility model discloses work flow: when in use, the double sealing structure is formed by the multiple corrugated pipes and the packing 7 inside the corrugated pipe assembly 8 through the arranged corrugated pipe assembly 8 and the packing 7, so that the valve rod 3 can be effectively prevented from being eroded by external liquid, when the corrugated pipe assembly 8 fails, the whole sealing effect of the stop valve is enhanced through the sealing effect of the packing 7, the valve body 1 is of a low temperature resistant structure, the stop valve can be ensured to be used under the low temperature condition, the safety and the reliability of the valve body 1 are ensured, the application range of the stop valve is expanded, the service life of the stop valve is prolonged, the reinforcing disc 16 is welded at the middle position of the outer end of the valve body 1, the strength of the valve body 1 is improved through the reinforcing disc 16, the stability of the valve body 1 in use is improved, and the sealing stop valve in the utility model has the characteristics of low temperature resistance and good sealing effect, and rational in infrastructure, excellent performance and handsome in appearance to can reach and generally use widely, make convenience more when the equipment uses, have certain spreading value.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a strenghthened type low temperature bellows seals stop valve, includes valve body (1), its characterized in that: the valve body (1) top is connected with a hand wheel (2), the inner end of the bottom of the hand wheel (2) is connected with a valve rod (3), the outer end of the top of the valve rod (3) is connected with a valve nut (4), the bottom of the outside of the valve rod (3) which is positioned on the valve nut (4) is connected with a valve rod nut (5), the bottom of the valve rod nut (5) is connected with a packing gland (6), the bottom of the packing gland (6) is filled with packing (7), the bottom of the valve rod (3) is connected with a corrugated pipe assembly (8), the bottom of the outside of the valve rod (3) which is positioned on the corrugated pipe assembly (8) is connected with a sealing ring (9), the bottom of the valve rod (3) is connected with a valve clack (10), the top of the valve clack (10) is fixed with a valve clack cover (11), the upper surface of the valve body, a reinforcing disc (16) is welded in the middle of the outer end of the valve body (1).
2. The reinforced low-temperature bellows sealing stop valve of claim 1, wherein: the valve body (1) is of a low-temperature-resistant structure.
3. The reinforced low-temperature bellows sealing stop valve of claim 1, wherein: two groups of channels are symmetrically arranged at two ends of the valve body (1).
4. The reinforced low-temperature bellows sealing stop valve of claim 1, wherein: the bottommost end of the valve rod (3) penetrates through the valve clack cover (11) and is movably connected with the valve clack (10).
5. The reinforced low-temperature bellows sealing stop valve of claim 1, wherein: the valve nut (4) and the valve rod (3) are connected through threads.
6. The reinforced low-temperature bellows sealing stop valve of claim 1, wherein: the top end of the valve rod (3) is fixedly clamped with the inner part of the bottom end of the hand wheel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120028164.0U CN213954356U (en) | 2021-01-07 | 2021-01-07 | Reinforced low-temperature bellows sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120028164.0U CN213954356U (en) | 2021-01-07 | 2021-01-07 | Reinforced low-temperature bellows sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213954356U true CN213954356U (en) | 2021-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120028164.0U Active CN213954356U (en) | 2021-01-07 | 2021-01-07 | Reinforced low-temperature bellows sealing stop valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN213954356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087420A (en) * | 2021-11-17 | 2022-02-25 | 济南新材料产业技术研究院 | Sealing structure of valve rod and valve |
-
2021
- 2021-01-07 CN CN202120028164.0U patent/CN213954356U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087420A (en) * | 2021-11-17 | 2022-02-25 | 济南新材料产业技术研究院 | Sealing structure of valve rod and valve |
| CN114087420B (en) * | 2021-11-17 | 2024-01-26 | 济南新材料产业技术研究院 | Sealing structure of valve rod and valve |
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