CN204403662U - Multistage orifice plate decompressor - Google Patents
Multistage orifice plate decompressor Download PDFInfo
- Publication number
- CN204403662U CN204403662U CN201420776454.3U CN201420776454U CN204403662U CN 204403662 U CN204403662 U CN 204403662U CN 201420776454 U CN201420776454 U CN 201420776454U CN 204403662 U CN204403662 U CN 204403662U
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- CN
- China
- Prior art keywords
- orifice plate
- pressure ring
- voltage terminal
- grommet
- rear pressure
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Abstract
The utility model discloses a kind of multistage orifice plate decompressor, for reducing the pressure of steam pipe system medium.This novel multistage orifice plate decompressor comprises body, orifice plate, grommet, front pressure ring, rear pressure ring and rear pressure ring orifice plate, wherein body is the seamless steel pipe of a horizontal cylinder shape, orifice plate is contained on the groove of grommet, rear pressure ring to load in body and is welded and fixed with inner body wall inside low voltage terminal groove, rear pressure ring orifice plate from high voltage terminal load in body with rear pressure ring close contact, load successively in body from low voltage terminal to high voltage terminal after the multistage orifice plate be combined into by orifice plate and grommet superposes mutually, front pressure ring is welded and fixed with inner body wall load the orifice plate and grommet withstanding the leftmost side in body from high voltage terminal after, it is simple that this novel multistage orifice plate decompressor has structure, stable performance, the outstanding advantages such as long service life, be widely used in the pressure being used in steam pipe system reducing medium.
Description
Technical field
The utility model relates to a kind of decompressor, particularly relates to a kind of novel multistage orifice plate decompressor, for reducing the pressure of steam pipe system medium.
Background technique
Certainly will to reduce pressure to medium in the link that the saturation water separated of superpressure boiler uses as secondary steam, reduction valve is used to implement under normal circumstances, but along with the increased flow capacity of high pressure saturation water, the circulation diameter of reduction valve also wants corresponding increase, and cause valve body heavier, the cost of Productive statistics is high, the substitute is for this reason and use orifice plate decompressor, generally be reduced to below middle pressure from ultrahigh pressure, use single-stage pressure reducing to be worthless, multi-step pressure reduction must be used realize.Comprehensive current multistage orifice plate decompressor on the market, often effect of easing stress is bad, and working life is short, often needs to change, adds operating cost thus, also for safety in production brings hidden danger to enterprise.Trace it to its cause: one is that orifice plate is directly welded on tube wall, welding difficulty is large, causes welding quality not high; Two is that orifice plate works for a long time under ultrahigh pressure state, is especially often washed out by high pressure saturation water at the orifice plate of high voltage terminal, makes reduction valve cisco unity malfunction.A kind of novel multistage orifice plate decompressor must be researched and developed thoroughly solve the problem for this reason.
Summary of the invention
The purpose of this utility model to provide a kind of novel multistage orifice plate decompressor, thoroughly to solve the defect that existing orifice plate decompressor exists, for reducing the pressure of steam pipe system medium.
The utility model multistage orifice plate decompressor can adopt following technological scheme to implement: it comprises body, orifice plate, grommet, front pressure ring, rear pressure ring and rear pressure ring orifice plate, wherein body is the seamless steel pipe of a horizontal cylinder shape, one end face of grommet is provided with the groove matched with orifice plate diameter, and orifice plate is contained in composition one-level orifice plate in the groove on grommet.The two ends of body according to MEDIA FLOW to one end as high voltage terminal, then the other end makes groove as MEDIA FLOW to mark as low voltage terminal on its end face, rear pressure ring with center hole to load in body and is welded and fixed with inner body wall inside low voltage terminal groove, rear pressure ring orifice plate from high voltage terminal load in body with rear pressure ring close contact, load successively in body from low voltage terminal to high voltage terminal after the multistage orifice plate be made up of orifice plate and grommet superposes mutually, and utilize the frictional force between inner body wall and grommet outer wall to be fixed, front pressure ring with center hole is welded and fixed in body Nell wall load the orifice plate and grommet withstanding the leftmost side in body from high voltage terminal after, here welding is all full welds, the center bore of orifice plate be according to this level (i.e. one piece of orifice plate and install the grommet composition one-level of this orifice plate) orifice plate both ends of the surface between pressure difference design and produce, the horn mouth of several angle is made between the low side outlets place and inlet of every block orifice plate, to improve release effect.
Compared with prior art playing outstanding advantage according to the new multistage orifice plate decompressor of technique scheme design is:
1, change existing multistage orifice plate decompressor orifice plate directly to be loaded in cylindrical shell and the many defects be welded and fixed, devise one piece of grommet, being contained in by orifice plate after on grommet groove reinstalls in cylindrical shell, grommet is utilized to reinforce orifice plate, reduce because the medium of high flow rate is to the impact dynamics of orifice plate, thus improve stability and the working life of device.
2, calculates the center bore of every block orifice plate according to the working pressure difference of high voltage terminal and low voltage terminal, realize the multi-step pressure reduction to medium (steam, water) in single stack shell, the cost of reduction Productive statistics.
3, the low voltage side in central hole footpath is provided with a horn mouth in the orifice plate, is conducive to release, improves effect of easing stress.
4, the frictional force between cylinder inboard wall and grommet outer wall is utilized to be fixed after in multistage orifice plate loading cylindrical shell, this assembling mode solves in prior art because cylindrical shell is too narrow and small, the defect that welding orifice plate difficulty is high, the change of this assembling mode eliminates welding difficulty, improve assembling speed, reduce cost of production.
Accompanying drawing explanation
Fig. 1 is the utility model multistage orifice plate decompressor structural representation.
Fig. 2 is the orifice structure schematic diagram of the multistage orifice plate decompressor of the utility model.
Embodiment
Below in conjunction with drawings and Examples, further describing is done to the utility model:
As depicted in figs. 1 and 2, the multistage orifice plate decompressor of the utility model comprises body 1, orifice plate 4, grommet 3, front pressure ring 2, rear pressure ring 6 and rear pressure ring orifice plate 5, wherein body 1 is the seamless steel pipe of a horizontal cylinder shape, one end face of grommet 3 is provided with the groove with orifice plate 4 diameter compatible, orifice plate is contained in composition one-level orifice plate after in groove, the two ends of body according to MEDIA FLOW to one end as high voltage terminal, then the other end as low voltage terminal and establish on its end face groove as MEDIA FLOW to mark (what namely there was groove at the two ends of body 1 is low voltage terminal, square groove be high voltage terminal) afterwards pressure ring 6 to load inside low voltage terminal groove in body and be welded and fixed with inner body wall, rear pressure ring orifice plate 5 from high voltage terminal load in body with rear pressure ring 6 close contact, load successively in body from low voltage terminal to high voltage terminal after the multistage orifice plate be combined into by orifice plate 4 and grommet 3 superposes mutually, and utilize inner body wall and the mutual frictional force of grommet outer wall to be fixed, front pressure ring 2 is welded and fixed in inner body wall withstand leftmost side orifice plate and grommet in high voltage terminal loading body after, here welding all requires full weld, make orifice plate time orifice plate center bore be according to this grade of orifice plate both ends of the surface between pressure difference design and produce, the horn mouth being made into several angle between inlet is at the low voltage terminal side outlet of orifice plate, when practice shows that its angle is 45 degree, release effect is best.Above-mentioned multistage orifice plate decompressor is mainly used to the pressure reducing steam pipe system medium.
Claims (1)
1. a multistage orifice plate decompressor, it is characterized in that this device comprises body (1), orifice plate (4), grommet (3), front pressure ring (2), rear pressure ring (6) and rear pressure ring orifice plate (5), wherein body (1) is the seamless steel pipe of a horizontal cylinder shape, one end face of grommet (3) is provided with the groove with orifice plate (4) diameter compatible, orifice plate is contained in groove, the two ends of body according to MEDIA FLOW to one end as high voltage terminal, then the other end establishes groove as MEDIA FLOW to mark as low voltage terminal on its end face, rear pressure ring (6) to load in body and is welded and fixed with inner body wall inside low voltage terminal groove, rear pressure ring orifice plate (5) from high voltage terminal load in body with rear pressure ring (6) close contact, load successively in body from low voltage terminal to high voltage terminal after the multistage orifice plate be combined into by orifice plate (4) and grommet (3) superposes mutually, front pressure ring (2) is welded and fixed in inner body wall withstand leftmost side orifice plate and grommet in high voltage terminal loading body after.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776454.3U CN204403662U (en) | 2014-12-11 | 2014-12-11 | Multistage orifice plate decompressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776454.3U CN204403662U (en) | 2014-12-11 | 2014-12-11 | Multistage orifice plate decompressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403662U true CN204403662U (en) | 2015-06-17 |
Family
ID=53427519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420776454.3U Expired - Fee Related CN204403662U (en) | 2014-12-11 | 2014-12-11 | Multistage orifice plate decompressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799685A (en) * | 2018-08-16 | 2018-11-13 | 西安希佛隆阀门有限公司 | A kind of multi-level throttle orifice plate |
| CN115199849A (en) * | 2021-04-08 | 2022-10-18 | 中国石油化工股份有限公司 | Current-limiting orifice plate with cutting function |
-
2014
- 2014-12-11 CN CN201420776454.3U patent/CN204403662U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799685A (en) * | 2018-08-16 | 2018-11-13 | 西安希佛隆阀门有限公司 | A kind of multi-level throttle orifice plate |
| CN115199849A (en) * | 2021-04-08 | 2022-10-18 | 中国石油化工股份有限公司 | Current-limiting orifice plate with cutting function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20201211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |