CN208703130U - A kind of spool is with the shut-off valve for wearing structure under bellows - Google Patents
A kind of spool is with the shut-off valve for wearing structure under bellows Download PDFInfo
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- CN208703130U CN208703130U CN201821104263.7U CN201821104263U CN208703130U CN 208703130 U CN208703130 U CN 208703130U CN 201821104263 U CN201821104263 U CN 201821104263U CN 208703130 U CN208703130 U CN 208703130U
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- valve
- spool
- bellows
- shut
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Abstract
The utility model discloses a kind of spools with the shut-off valve for wearing structure under bellows, including valve body, valve rod, spool and valve deck；Bellows is arranged with outside the valve rod, the stem bottom and bellows bottom end are welded to connect, and the spool is set in outside bellows；The spool outer diameter is up big and down small, is arranged with valve seat outside the spool, the valve seat is set at spool variable diameter；Guide sleeve is arranged with outside the spool, the guide sleeve is located above valve seat；The valve body is set in the outside for assembling the spool of valve seat and guide sleeve；The valve deck is sheathed on stem exterior.The height for reducing valve is worn under the shut-off valve bellows of the utility model, reduces installation space；Valve seat uses telescoping structure, increases the flow of valve；The guiding surface build-up welding stellite of guide sleeve and spool, improves hardness and wearability, extends the service life of valve；Valve deck and valve rod are sealed equipped with second, increase the sealing performance of valve.
Description
Technical field
The utility model relates to a kind of shut-off valves more particularly to a kind of spool with the shut-off valve for wearing structure under bellows.
Background technique
Sylphon seal shut-off valve is suitable for the pipeline of the danger mediums such as steam, inflammable, explosive, conduction oil, toxic, fused salt
On, the design of sylphon seal can be effectively blocked medium etch valve rod, and also retain original valve stem packing structure, dual
Sealing structure ensures the zero leakage at valve rod.Therefore sylphon seal shut-off valve is in petroleum, chemical industry, natural gas, photoelectricity, nuclear power
Equal industrial applications are extensive.
Common sylphon seal shut-off valve is on the basis of common shut-off valve by increasing in valve body and valve cover chamber
It crossing section or increases flange height in valve body, bellows is mounted on valve rod outer circle, bellows lower end and flap or valve rod welded,
Bellows upper end and valve deck weld.But the obvious disadvantage of this design is exactly that the total height of valve, weight all greatly increase,
The outer dimension of some pairs of valves, weight have on the pipeline of strict demand, and this kind of design is just unable to satisfy, often due to space
It limits and the common shut-off valve on original pipeline can not be replaced.Therefore, the prior art need to be improved.
Summary of the invention
The shut-off valve that structure is worn under bellows is had the technical problem to be solved by the utility model is to provide a kind of spool,
Reduce the height and weight of valve.
The utility model is to solve above-mentioned technical problem and the technical solution adopted is that provide a kind of spool with bellows
Under wear the shut-off valve of structure, including valve body, valve rod, spool and valve deck；Bellows, the stem bottom are arranged with outside the valve rod
It is welded to connect with bellows bottom end, the spool is set in outside bellows, and is welded to connect after being threadedly coupled with stem bottom；Institute
It is up big and down small to state spool outer diameter, is arranged with valve seat outside the spool, the valve seat is set at spool variable diameter；The spool housing
Equipped with guide sleeve, the guide sleeve is located above valve seat；The valve body is set in the outer of the spool for assembling valve seat and guide sleeve
Portion；The valve deck is sheathed on stem exterior.
Further, the bellows top is welded with welding block, and fixed block is arranged with outside the upper welding block；It is described
Valve deck is set in the stem exterior for assembling welding block and fixed block, and the fixed block and valve deck are welded to connect.
Further, the valve deck is located above valve body, and the valve deck and valve body are connected by valve deck stud and bonnet nut
Fixation is connect, the valve deck and valve body junction are equipped with flange gasket.
Further, the valve rod and valve deck top gap are successively filled with filler group and filler pressing sleeve from top to bottom, described
Hold-down grid is equipped at the top of valve deck, the hold-down grid is set in outside valve rod, and the hold-down grid passes through filler stud and filler
Nut is fixed at the top of valve deck, and filler pressing sleeve is compressed.
Further, the bellows is integrally welded by link block.
Further, the valve body and valve seat junction are equipped with valve seat gasket.
Further, the valve seat is telescoping structure, and the valve seat barrel is equipped with multi-layer flow channels hole, the runner hole
Valve seat inner space is connected to valve outlet.
Further, the guide sleeve and spool junction are equipped with set guide surface, and the spool is equipped with and set guide surface
The core guide surface matched, the spool are moved up and down along set guide surface.
Further, the set guide surface and core are oriented to surface build-up welding stellite.
The utility model comparison prior art has following the utility model has the advantages that spool provided by the utility model has bellows
Under wear the shut-off valve of structure, the height for reducing valve is worn under bellows, reduces installation space；Valve seat uses telescoping structure,
Increase the flow of valve；The guiding surface build-up welding stellite of guide sleeve and spool, improves hardness and wearability, extends
The service life of valve；Valve deck and valve rod are sealed equipped with second, increase the sealing performance of valve.
Detailed description of the invention
Fig. 1 is the spool of the utility model embodiment with the structural schematic diagram for the shut-off valve for wearing structure under bellows；
Fig. 2 is the spool bellows component partial structure diagram of the utility model embodiment；
Fig. 3 is the guide sleeve structure schematic diagram of the utility model embodiment；
Fig. 4 is the valve seat construction schematic diagram of the utility model embodiment.
In figure:
| 1 valve body | 2 valve seat gaskets | 3 valve seats |
| 4 guide sleeves | 5 bellowss | 6 flange gaskets |
| 7 valve decks | 8 bonnet nuts | 9 valve deck studs |
| 10 filler groups | 11 filler pressing sleeves | 12 hold-down grids |
| 13 filler studs | 14 stuffing nuts | 15 valve rods |
| Welding block on 16 | 17 fixed blocks | 18 link blocks |
| 19 spools | 20 core guide surfaces | 21 metering orifices |
| 22 sets of guide surfaces |
Specific embodiment
The utility model will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the spool of the utility model embodiment with the stop valve structure schematic diagram for wearing structure under bellows；Fig. 2 is
The spool bellows component partial structure diagram of the utility model embodiment.
Referring to Figure 1 and Fig. 2, the utility model spool have the shut-off valve that structure is worn under bellows, including valve body 1, valve
Bar 15, spool 19 and valve deck 7；Bellows 5 is arranged with outside the valve rod 15,15 bottom of valve rod and 5 bottom end of bellows are welded
Connection, the spool 19 is set in outside bellows 5, and is welded to connect after connecting with 15 bottom thread of valve rod；Outside the spool 19
Diameter is up big and down small, is arranged with valve seat 3 outside the spool 19, the valve seat 3 is set at 19 variable diameter of spool, so that under bellows
It wears, reduces the height and weight of valve；Guide sleeve 4 is arranged with outside the spool 19, the guide sleeve 4 is located at 3 top of valve seat；
The valve body 1 is set in the outside for assembling the spool 19 of valve seat 3 and guide sleeve 4, it is preferred that the valve body 1 is connect with valve seat 3
Place is equipped with valve seat gasket 2；The valve deck 7 is sheathed on outside valve rod 15.
The utility model spool has the shut-off valve that structure is worn under bellows, and valve deck 7 is located at 1 top of valve body, the valve deck 7
It is connected and fixed with valve body 1 by valve deck stud 9 and bonnet nut 8, it is preferred that the valve deck 7 is equipped with flange with 1 junction of valve body
Gasket 6.The valve rod 15 is successively filled with filler group 10 and filler pressing sleeve 11, the valve deck 7 with 7 top gap of valve deck from top to bottom
Top is equipped with hold-down grid 12, and the hold-down grid 12 is set in outside valve rod 15, and the hold-down grid 12 passes through filler stud 13
It is fixed on 7 top of valve deck with stuffing nut 14, and filler pressing sleeve 11 is compressed, the second sealing of valve rod is formed, increases valve
The sealing performance of door.
Continuing with referring to fig. 2, the utility model spool has the shut-off valve that structure is worn under bellows, the weldering of 5 top of bellows
It is connected to welding block 16, is arranged with fixed block 17 outside the upper welding block 16；The valve deck 7, which is set in, assembles 16 He of welding block
Outside the valve rod 15 of fixed block 17, the fixed block 17 is welded to connect with valve deck 7.The bellows 5 is welded by link block 18
Integrally, it is welded to connect by bellows 5, increases 19 Lift of spool.
Fig. 3 is the guide sleeve structure schematic diagram of the utility model embodiment.
Continuing with referring to Fig. 3, the utility model spool has the shut-off valve that structure is worn under bellows, the guide sleeve 4 with
19 junction of spool is equipped with set guide surface 22, and the spool 19 is equipped with and the set matched core guide surface 20 of guide surface 22, the valve
Core is moved up and down along set guide surface 22.The set guide surface 22 and 20 built-up welding stellite of core guide surface.
Fig. 4 is the valve seat construction schematic diagram of the utility model embodiment.
Continuing with referring to fig. 4, the utility model spool has the shut-off valve that structure is worn under bellows, and valve seat 3 is telescopic
Structure, 3 barrel of valve seat are equipped with multi-layer flow channels hole 21, and the runner hole 21 connects 3 inner space of valve seat and the outlet of valve body 1
It is logical, increase the flow of valve.
The utility model spool has the shut-off valve that structure is worn under bellows, and in actual work, liquid enters from valve body 1
Mouthful enter, pushes spool 19 to move up, bellows 5 is compressed, and since 19 outer diameter of spool is up big and down small, liquid is from spool 19 and valve seat
Enter in valve seat 3 in 3 gap, then outlet, shut-off valve conducting are entered by runner hole 21；Make in external force and 5 pressure of bellows
It is moved down with lower valve rod 15, spool 19 moves down therewith, and spool 19 and valve seat 3 are in close contact, and valve seat 3 and 1 entrance of valve body are truncated, and cuts
Only valve breakdown.
In conclusion spool provided by the utility model is welded with the shut-off valve for wearing structure under bellows by bellows 5
It connects in succession, increases 19 Lift of spool；Structure is worn under bellows 5 reduces the height and weight of valve, and it is empty to reduce installation
Between, reduce valve cost；Valve seat 3 uses telescoping structure, increases the flow of valve；The guiding of guide sleeve 4 and spool 19
Surface build-up welding stellite improves hardness and wearability, extends the service life of valve；Pass through filler group 10, filler pressure
Set 11, hold-down grid 12, filler stud 13 and stuffing nut 14 form the second sealing of valve rod 15, increase the sealing of valve
Performance.
Although the utility model is disclosed as above with preferred embodiment, so it is not intended to limit the utility model, any
Those skilled in the art, without departing from the spirit and scope of the utility model, when can make a little modification and it is perfect, therefore this
The protection scope of utility model, which is worked as, to be subjected to the definition of the claims.
Claims (9)
1. a kind of spool has the shut-off valve for wearing structure under bellows, which is characterized in that including valve body (1), valve rod (15), spool
(19) and valve deck (7)；It is arranged with bellows (5) outside the valve rod (15), valve rod (15) bottom and bellows (5) bottom end are welded
It connects in succession, the spool (19) is set in bellows (5) outside, and is welded to connect after connecting with valve rod (15) bottom thread；It is described
Spool (19) outer diameter is up big and down small, is arranged with valve seat (3) outside the spool (19), and the valve seat (3) is set in spool (19) change
At diameter；It is arranged with guide sleeve (4) outside the spool (19), the guide sleeve (4) is located above valve seat (3)；Valve body (1) set
It is located at the outside for assembling the spool (19) of valve seat (3) and guide sleeve (4)；It is external that the valve deck (7) is sheathed on valve rod (15).
2. spool as described in claim 1 has the shut-off valve for wearing structure under bellows, which is characterized in that the bellows
(5) top is welded with welding block (16), is arranged with fixed block (17) outside the upper welding block (16)；The valve deck (7) is arranged
External in the valve rod (15) for assembling upper welding block (16) and fixed block (17), the fixed block (17) and valve deck (7) welding connect
It connects.
3. spool as described in claim 1 has the shut-off valve for wearing structure under bellows, which is characterized in that the valve deck (7)
Above valve body (1), the valve deck (7) is connected and fixed with valve body (1) by valve deck stud (9) and bonnet nut (8), described
Valve deck (7) and valve body (1) junction are equipped with flange gasket (6).
4. spool as described in claim 1 has the shut-off valve for wearing structure under bellows, which is characterized in that the valve rod (15)
It is successively filled with filler group (10) and filler pressing sleeve (11) from top to bottom with gap at the top of valve deck (7), is equipped at the top of the valve deck (7)
Hold-down grid (12), the hold-down grid (12) are set in valve rod (15) outside, and the hold-down grid (12) passes through filler stud
(13) it is fixed at the top of valve deck (7) with stuffing nut (14), and filler pressing sleeve (11) is compressed.
5. spool as described in claim 1 has the shut-off valve for wearing structure under bellows, which is characterized in that the bellows
(5) integrally welded by link block (18).
6. spool as described in claim 1 has the shut-off valve for wearing structure under bellows, which is characterized in that the valve body (1)
Valve seat gasket (2) are equipped with valve seat (3) junction.
7. spool as described in claim 1 has the shut-off valve for wearing structure under bellows, which is characterized in that the valve seat (3)
For telescoping structure, valve seat (3) barrel is equipped with multi-layer flow channels hole (21), and the runner hole (21) is internal by valve seat (3)
Space and valve body (1) outlet.
8. spool as described in claim 1 has the shut-off valve for wearing structure under bellows, which is characterized in that the guide sleeve
(4) set guide surface (22) is equipped with spool (19) junction, the spool (19) is equipped with leads with set guide surface (22) matched core
To face (20), the spool is moved up and down along set guide surface (22).
9. spool as claimed in claim 8 has the shut-off valve for wearing structure under bellows, which is characterized in that the set guide surface
(22) with core guide surface (20) built-up welding stellite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821104263.7U CN208703130U (en) | 2018-07-12 | 2018-07-12 | A kind of spool is with the shut-off valve for wearing structure under bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821104263.7U CN208703130U (en) | 2018-07-12 | 2018-07-12 | A kind of spool is with the shut-off valve for wearing structure under bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208703130U true CN208703130U (en) | 2019-04-05 |
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ID=65938529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821104263.7U Active CN208703130U (en) | 2018-07-12 | 2018-07-12 | A kind of spool is with the shut-off valve for wearing structure under bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208703130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357044A (en) * | 2018-10-17 | 2019-02-19 | 天长市海翔自控设备有限公司 | A kind of five valve group of high temperature high voltage resistant bellows |
-
2018
- 2018-07-12 CN CN201821104263.7U patent/CN208703130U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357044A (en) * | 2018-10-17 | 2019-02-19 | 天长市海翔自控设备有限公司 | A kind of five valve group of high temperature high voltage resistant bellows |
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