CN214500222U - Control valve with erosion prevention function - Google Patents
Control valve with erosion prevention function Download PDFInfo
- Publication number
- CN214500222U CN214500222U CN202120425006.9U CN202120425006U CN214500222U CN 214500222 U CN214500222 U CN 214500222U CN 202120425006 U CN202120425006 U CN 202120425006U CN 214500222 U CN214500222 U CN 214500222U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- diffuser
- seat
- cage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003628 erosive effect Effects 0.000 title claims description 15
- 230000002265 prevention Effects 0.000 title claims description 5
- 230000000694 effects Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000007701 flash-distillation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a control valve with erosion-proof function, which is applied in the technical field of valves and solves the problem that when a medium passes through a valve seat, flash evaporation can be generated after the high-speed medium is decompressed by a valve core, when the inner wall of a valve body at the downstream of a valve seat is washed, cavitation can occur on the inner wall, so that the problem that the washed part of the inner wall of the valve body has local material loss and the valve body is damaged easily occurs; the valve body is not directly brushed by a medium, so that the valve body is effectively protected, and the service life of the valve body is prolonged.
Description
Technical Field
The utility model discloses use in valve technical field, especially relate to a control valve with scour protection loses effect.
Background
The control valve can divide into downward outflow and from upwards flowing down according to the flow direction, the utility model relates to a control valve of downward outflow, the medium can be through the disk seat, the runner flows to the downstream pipeline from the export end again, when the medium passes through the disk seat, the medium erodees downwards perpendicularly and corrodes the valve body inner wall, because high-speed medium is after the case decompression, can produce the flash distillation, when erodeing disk seat low reaches valve body inner wall, can take place the cavitation phenomenon at the inner wall, form cave form corrosion damage at the valve body internal surface, the part that easily causes the valve body inner wall to be scoured appears the local material loss, long-time impact, can make the valve body inner wall form many tiny pockmarks, and then gradually enlarge into the hole, make the local wall thickness attenuation of valve body and inefficacy, the valve body is destroyed risk appears.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a control valve with scour protection loses effect, solved when the medium passes through the disk seat, the medium erodees perpendicularly downwards and corrodes the valve body inner wall, because high-speed medium is after case decompression, can produce the flash distillation, when erodeing disk seat low reaches valve body inner wall, can take place the cavitation phenomenon at the inner wall, form hole cave form corrosion destruction at the valve body internal surface, local material loss appears at the position that easily causes the valve body inner wall to be washed, strike for a long time, can make the valve body inner wall form many tiny pockmarks, and then gradually enlarge the cavitation gradually, make the local wall thickness attenuation of valve body and become invalid, the problem that the valve body was destroyed the risk appears.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a control valve with scour protection loses effect, including the valve body that is provided with inlet pipeline and outlet pipeline, fix valve gap on the valve body, set up the valve seat, the valve rod and the valve plug that control flap opened and shut in the valve body, the bottom of valve rod is passed the valve gap and is connected with the upper end of valve plug, the disk seat can be dismantled with the valve body and be connected, the bottom of disk seat is provided with the diffuser of using the protection of valve body inner wall, the diffuser sets up with disk seat integrated into one piece, be provided with a plurality of water conservancy diversion hole on the lateral wall of diffuser, the diffuser is located the valve body of disk seat to exit end.
Further, the valve gap passes through bolted connection with the valve body, the inside valve cage that is provided with the orifice of valve body, the valve plug is arranged in the valve cage, the bottom of valve cage is contradicted on the disk seat, the top of valve cage is contradicted in the bottom of valve gap.
Further, the bottom of valve gap and the top of disk seat all are provided with the fixed slot, the top joint of valve cage is in the fixed slot of valve gap bottom, the bottom joint of valve cage is in the fixed slot on disk seat top.
And further, sealing gaskets are respectively arranged in the fixing grooves at the bottom end of the valve cover and the top end of the valve seat.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses a control valve with scour protection loses, is provided with the diffuser of using to the protection of valve body inner wall in the bottom of disk seat, and the diffuser sets up with disk seat integrated into one piece, is provided with a plurality of water conservancy diversion holes on the lateral wall of diffuser, and the diffuser is located the export pipeline, and after the control valve opened, the medium no longer directly erodees the valve body, has effectively protected the valve body, has prolonged the life-span of valve body; meanwhile, the diffuser is made of metal with higher hardness, so that the erosion resistance of the diffuser can be improved, the erosion effect of the medium on the diffuser can be reduced, and the service life of the valve can be prolonged;
furthermore, the diffuser is used as an inner part and is detachably connected with the valve body, the erosion condition of the diffuser can be checked during regular maintenance, if the erosion of the diffuser is found, the inner part can be replaced in time without replacing the valve body, and therefore the maintenance cost is reduced and the maintenance time is shortened.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of the overall structure in the embodiment of the present invention.
Wherein the reference numerals are as follows:
1. an inlet duct; 2. an outlet conduit; 3. a valve body; 4. a valve cover; 5. a valve seat; 6. a valve stem; 7. a valve plug; 8. a diffuser; 9. a flow guide hole; 10. a cage; 11. and fixing the grooves.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, for the utility model provides a control valve with erosion prevention effect, including the valve body 3 that is provided with inlet pipeline 1 and outlet pipeline 2, the valve gap 4 of fixing on valve body 3, the valve seat 5 of setting in valve body 3, valve rod 6 and the valve plug 7 of control valve opening and shutting, when the control valve is in the closed condition, the sealed face of the bottom of valve plug 7 is closely laminated with valve seat 5, the bottom of valve rod 6 passes valve gap 4 and is connected with the upper end of valve plug 7, the bottom of valve seat 5 is provided with the diffuser 8 of using to the protection of valve body 3 inner wall, diffuser 8 and valve seat 5 integrated into one piece set up, convenient processing, be provided with a plurality of water conservancy diversion holes 9 on the lateral wall of diffuser 8, diffuser 8 is located outlet pipeline 2; when the control valve during operation, drive valve rod 6 and the valve plug 7 of being connected with valve rod 6 bottom under valve controller's effect and move up along the direction of height of valve rod 6, make the control valve be in the state of opening, the medium flows into in the diffuser 8 from inlet pipe 1, 9 flow direction outlet pipe 2 of water conservancy diversion hole on the 8 lateral walls of rethread diffuser, make the medium directly not erode 3 inner walls of valve body through diffuser 8, the effectual valve body 3 of having protected to the life of extension valve body 3. The diffuser 8 is made of metal with high hardness, so that the erosion resistance can be improved, the erosion effect of the medium can be reduced, and the service life of the control valve can be prolonged. The valve seat 5 and the valve body 3 are detachably connected, when the diffuser 8 is used for a long time and erosion occurs, the valve seat 5 and the diffuser 8 can be replaced together, and the valve body 3 does not need to be replaced at the moment, so that the maintenance cost is reduced and the maintenance time is shortened.
Further, referring to fig. 1, a valve cage 10 with a throttling hole is arranged inside the valve body 3, the valve plug 7 is arranged in the valve cage 10, the bottom end of the valve cage 10 abuts against the valve seat 5, the top end of the valve cage 10 abuts against the bottom end of the valve cover 4, the valve cover 4 is connected with the valve body 3 through a bolt, the valve cover 4 and the valve body 3 are fastened together through the bolt, the valve seat 5 is pressed by the valve cage 10 arranged between the valve cover 4 and the valve body 3, the valve seat 5 is further firmly fixed in the valve body 3, the control valve is conveniently assembled through the connection mode, and meanwhile, the diffuser 8 is also conveniently detached from the valve body.
Further, referring to fig. 1, fixing grooves 11 are formed in the bottom end of the valve cover 4 and the top end of the valve seat 5, the top end of the valve cage 10 is clamped in the fixing groove 11 in the bottom end of the valve cover 4, the bottom end of the valve cage 10 is clamped in the fixing groove 11 in the top end of the valve seat 5, and the valve cage 10 is firmly fixed in the valve body 3, so that the valve cage 10 is prevented from moving when a medium impacts the valve cage 10; the fixing grooves 11 formed in the bottom end of the valve cover 4 and the top end of the valve seat 5 are respectively provided with a sealing gasket, so that the sealing performance of the control valve is improved, and leakage is prevented.
In summary, the following steps: by arranging the diffuser 8 for protecting the inner wall of the valve body 3 at the bottom end of the valve seat 5, after the control valve is opened, the medium does not directly scour the valve body 3 any more, the valve body 3 is effectively protected, and the service life of the valve body 3 is prolonged; meanwhile, the diffuser is made of metal with higher hardness, so that the erosion resistance of the diffuser 8 can be improved, the erosion effect of the medium on the diffuser 8 can be reduced, and the service life of the valve can be prolonged.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (4)
1. The utility model provides a control valve with scour protection loses effect, includes the valve body that is provided with inlet duct and outlet duct, fixes valve gap on the valve body, sets up disk seat, valve rod and the valve plug that control valve opened and shut in the valve body, the bottom of valve rod is passed the valve gap and is connected with the upper end of valve plug, a serial communication port, the disk seat can be dismantled with the valve body and be connected, the bottom of disk seat is provided with the diffuser of using to the protection of valve body inner wall, the diffuser sets up with disk seat integrated into one piece, be provided with a plurality of water conservancy diversion hole on the lateral wall of diffuser, the diffuser is located disk seat to the valve body of exit end.
2. The control valve with erosion protection as claimed in claim 1, wherein the bonnet is bolted to the valve body, a valve cage with orifices is disposed inside the valve body, the valve plug is disposed inside the valve cage, a bottom end of the valve cage abuts against the valve seat, and a top end of the valve cage abuts against a bottom end of the bonnet.
3. The control valve with erosion prevention function as claimed in claim 2, wherein the bottom end of the valve cover and the top end of the valve seat are provided with fixing grooves, the top end of the valve cage is clamped in the fixing groove at the bottom end of the valve cover, and the bottom end of the valve cage is clamped in the fixing groove at the top end of the valve seat.
4. The control valve with erosion prevention function according to claim 3, wherein sealing gaskets are respectively provided in the fixing grooves provided at the bottom end of the valve cover and the top end of the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120425006.9U CN214500222U (en) | 2021-02-26 | 2021-02-26 | Control valve with erosion prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120425006.9U CN214500222U (en) | 2021-02-26 | 2021-02-26 | Control valve with erosion prevention function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214500222U true CN214500222U (en) | 2021-10-26 |
Family
ID=78226426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120425006.9U Expired - Fee Related CN214500222U (en) | 2021-02-26 | 2021-02-26 | Control valve with erosion prevention function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214500222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135686A (en) * | 2021-12-09 | 2022-03-04 | 温州芝寰流体技术有限公司 | Plunger type porous decompression flash valve |
-
2021
- 2021-02-26 CN CN202120425006.9U patent/CN214500222U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135686A (en) * | 2021-12-09 | 2022-03-04 | 温州芝寰流体技术有限公司 | Plunger type porous decompression flash valve |
| CN114135686B (en) * | 2021-12-09 | 2023-08-25 | 浙江芝寰流体技术有限公司 | Plunger type porous pressure-reducing flash valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211026 |