CN2469266Y - Valve with regulating steam flow-rate - Google Patents
Valve with regulating steam flow-rate Download PDFInfo
- Publication number
- CN2469266Y CN2469266Y CN 01211070 CN01211070U CN2469266Y CN 2469266 Y CN2469266 Y CN 2469266Y CN 01211070 CN01211070 CN 01211070 CN 01211070 U CN01211070 U CN 01211070U CN 2469266 Y CN2469266 Y CN 2469266Y
- Authority
- CN
- China
- Prior art keywords
- valve
- steam
- spool
- steam flow
- flow control
- 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
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- Details Of Valves (AREA)
Abstract
A steam flow adjustment valve is characterized in that the valve body is provided with a valve seat, and the upper part of the valve seat is provided with a hanging cover. The lower part of the hanging cover is provided with a steam hole, and the hanging cover is provided with a balance type valve core. The lower opening outer edge of the valve core is provided with an inclined angle, and the upper part thereof is provided with a sealing ring cooperated with the inner wall of the hanging cover and a fixation part of the sealing ring. The valve core is provided with a valve rod which can move up and down, and the valve rod passes through the valve cover, which is applicable for the steam flow adjustment of the plant boiler system.
Description
The utility model relates to the instrument and meter for automation field of mechanical technique, and the steam that belongs to the station boiler system is specifically regulated, and can satisfy the steam regulation valve of boiler different load, different flow.
At present domestic applied steam flow control valve structure is complicated, and adjusting function is poor in operating mode, easily reveal, noise is big, easily erosion and working life weak point shortcoming, more mainly can not control steam flow effectively, waste energy.
It is good that the purpose of this utility model provides a kind of adjusting function, leaks less, anti-cavitation and noise is low improves working life, and the main Flow-rate adjustment linearity is good, the steam flow control valve that the adjusting that can effectively control steam flow again can the energy saving safe operation.
For finishing the technological scheme that above-mentioned purpose is taked: the drum type valve seat top in the import and export of valve body is established drum type and is shrouded, this shrouds the strip hole that logical steam is established in the bottom, circular balanced type spool is set in shrouding, spool end opening outer rim is established the oblique angle, for good, its top is provided with and shrouds the seal ring that inwall cooperates with 27～29 degree at this oblique angle, and seal ring is provided with the fixed block of fixed seal ring, establish the valve rod of doing upper and lower operation on the spool, valve rod passes valve gap.The turnover steam ports of above-mentioned valve body is that straight-through type or flange connect.
The utility model adopts porous to shroud or strip shrouds, in shrouding, move up and down the size that the passage section that changes porous or strip hole comes the steam regulation flow by spool, behind valve opening, by steam bump mixing mutually in radial inflow shrouds the chamber, flow to outlet then vertically, thereby the utility model is in operation have noise little, erosion resistance, reveal little, advantages such as long service life.
Below in conjunction with accompanying drawing the utility model is described in detail.
As shown in Figure 1, form the valve gap 5 that comprises valve body 2 and be installed in valve body top of the present utility model, valve body is provided with imports and exports 1, be provided with discharge of steam in the valve body and close machinery, this mechanism comprises the drum type valve seat 11 that is located in the valve body, the drum type that is located at the valve seat top shrouds 7, the bottom is provided with strip or the porous 4 that changes the steam flow cross section, be provided with cylindrical shape balanced type spool 10 in shrouding, spool end opening outer rim becomes 28 ℃ of angles 3, and spool top is provided with and shrouds the seal ring 9 that inwall matches, its top is provided with fixed block 8, spool is provided with the valve rod 6 that spool is moved up and down, and valve rod passes valve gap 5, and the import and export of valve body are that right-angle type welding or flange connect.
The utility model is installed on the boiler steam line, and after needing the signal of flow from oxygen-eliminating device, vaporizer, valve driving mechanism starts working, and satisfies the requirement of steam flow.After sending the signal that does not need flow, driving mechanism counter-rotating valve rod drives spool, moves downward, and until closing, guarantees the operation of boiler and steam turbine safety economy ground.The utility model is simple in structure, and is easy to maintenance, and inner body all adopts high-quality stainless steel and Hardmetal materials to make.Both prevent the generation of erosion, reduced thermal expansion factor again, improved working life.The utility model adapts to pressure reduction 4mpa, and temperature can reach 540 ℃.
Claims (3)
1, a kind of steam flow control valve, comprise valve body (2) that is provided with the steam import and export and the valve gap (5) that is installed on valve body top, it is characterized in that: in steam is imported and exported (1), establish drum type valve seat (11), establish drum type in valve seat (11) top and shroud (7), shroud the bottom and be provided with strip hole (4) by steam, be provided with circular balanced type spool (10) in shrouding, spool end opening outer rim is established oblique angle (3), its top is provided with and shrouds the seal ring (9) that inwall cooperates, seal ring is provided with fixed block (8), spool is provided with the valve rod (6) that spool is moved up and down, and valve rod passes valve gap (5).
2, steam flow control valve according to claim 1 is characterized in that: the turnover steam ports of the valve body of described steam flow control valve (2) is a straight-through type.
3, steam flow control valve according to claim 1 is characterized in that the oblique angle of spool (10) end opening outer rim is good with 27～29 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211070 CN2469266Y (en) | 2001-03-12 | 2001-03-12 | Valve with regulating steam flow-rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211070 CN2469266Y (en) | 2001-03-12 | 2001-03-12 | Valve with regulating steam flow-rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2469266Y true CN2469266Y (en) | 2002-01-02 |
Family
ID=33630522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01211070 Expired - Fee Related CN2469266Y (en) | 2001-03-12 | 2001-03-12 | Valve with regulating steam flow-rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2469266Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359611A (en) * | 2011-09-29 | 2012-02-22 | 天津百利展发集团有限公司 | Washout-preventing soft-sealing single-seat regulating valve |
-
2001
- 2001-03-12 CN CN 01211070 patent/CN2469266Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359611A (en) * | 2011-09-29 | 2012-02-22 | 天津百利展发集团有限公司 | Washout-preventing soft-sealing single-seat regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |