CN2252917Y - Precision regulating smoke duct valve - Google Patents
Precision regulating smoke duct valve Download PDFInfo
- Publication number
- CN2252917Y CN2252917Y CN 96231116 CN96231116U CN2252917Y CN 2252917 Y CN2252917 Y CN 2252917Y CN 96231116 CN96231116 CN 96231116 CN 96231116 U CN96231116 U CN 96231116U CN 2252917 Y CN2252917 Y CN 2252917Y
- Authority
- CN
- China
- Prior art keywords
- flue
- curved surface
- valve
- spool
- utility
- 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 - Lifetime
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a flue valve which controlling gas pressure in an industrial furnace. The utility model is composed of a valve core, an operating mechanism, a valve seat, a valve rod, a sealing plate, a connecting pin, a centering seat, etc. The utility model is characterized in that the valve core is a camber-shaped plate body, the center of which is provided with a rotating shaft; the rim of a camber is provided with sealing material. When the valve core rotates, the change of distance between the camber edge of the valve core and the inner wall of a flue is uniform and gradual, and thus the utility model can uniformly and gradually regulate furnace pressure. The utility model has the advantages of favorable regulating performance, good tightness, reasonable design and easy production, and the utility model is favorable for the heat preservation of banking.
Description
The utility model relates to a kind of Flue valve that gas pressure is used in the industrial furnace of controlling.
In the modern industry stove, control stove pressure is very necessary.Usually adopt the valve that is installed in the flue to regulate, for example gate valve or butterfly valve.But, all can not satisfy the requirement of fine adjustment stove pressure, the control of furnace pressure does not reach preferable state.
The purpose of this utility model provides a kind of Flue valve of energy fine adjustment furnace pressure, to realize the fine adjustment to stove pressure.
The utility model be utilize curved surface in rotation and between the fixed pan variable in distance be mild characteristic, promptly corner changes greatly and the less characteristic of aperture variation designs.The utility model mainly is made up of spool 1, operating device 2, valve seat 3, valve rod 4, sealing plate 5, connecting pin 7, footstock 8, flue masonry 9 and flue cover plate 10 etc.It is characterized in that spool 1 be in the band rotating shaft the curved plate body, its orthographic projection is well-regulated geometric figure, the edge has the sealing material 6 that seals, flue masonry 9 inner wall section shapes are corresponding with spool 1 orthographic projection figure, and curved surface rotation maximum radius is slightly larger than 1/2 of flue masonry 9 inwall Extreme breadths.The curved surface of rotating shaft both sides is provided with stiffening rib.The rotating shaft upper end is connected with valve rod 4 with connecting pin 7, and footstock 8 is inserted in the lower end, rotating operation mechanism 2, and spool 1 rotates, and the aperture on the masonry 9 inwall planes that spool 1 is relative with it is smooth variation, thereby evenly accurately, has gently controlled the pressure of furnace gas.
The utility model has the advantages that adjusting function is good, can realize equably, gently regulate; Good seal performance ， Te Do helps the banking insulation.This valve design is reasonable, is easy to make.
Below in conjunction with drawings and Examples the utility model is described in further detail
Fig. 1 is the sectional view of Precision trimming Flue valve
Fig. 2 is the change curve of distance between spool corner and spool edge and the flue inwall
Wherein the Y coordinate is the distance between spool edge and the flue inwall
The α coordinate is the spool angle of swing
Curve 1 is the change curve of common butterfly valve
Precision trimming Flue valve shown in Figure 1 is made up of spool 1, operating device 2, valve seat 3, valve rod 4, sealing plate 5, connecting pin 7, footstock 8.Described spool 1 is middle band rotating shaft curved plate body, the rectangular shape of its orthographic projection, and the curved surface edge has sealing material fibrofelt 6, and these masonry 9 inner wall sections of cigarette are rectangle, and the width of the rectangle of curved surface projection is slightly larger than the width of flue masonry 9 inner wall section rectangles.The curved surface of rotating shaft both sides is provided with stiffening rib.Described spool curved plate body can be that intermediate portion is the rectangle plane plate, and dull and stereotyped two ends connect the curved surface plate body; Or be formed by connecting with the center symmetry by two curved surface plate bodys.Curved surface plate body described here can be arc shaped surface plate body or parabola shaped panel body.Operating device 2 has bearing hole, and footstock 8 is arranged on the center of flue bottom, and is corresponding with spool 1 rotating shaft.Concrete formation is that valve rod 4 upper ends penetrate operating device 2 bearing holes, fix with bolt and cotter pin on the operating device 2 usefulness bolt valve seats 3, and sealing plate 5 plates are passed in the lower end, is connected with spool 1 with connecting pin 7.The rotating shaft lower end of spool 1 is penetrated in the footstock 8, and valve seat 3 is fixed on the flue masonry 9 by stone bolt.Spool just is installed in the flue of flue masonry 9 and flue cover plate 10 composition cross section rectangles like this, flue masonry 9 and flue cover plate 10 that is formation valve body.When rotating operation mechanism 2, drive spool 1 and rotate, the aperture of the edge of spool 1 and flue masonry inwall is ascending or descending until closing.
Claims (5)
1. Precision trimming Flue valve of forming by spool (1), operating device (2), valve seat (3), valve rod (4), sealing plate (5), connecting pin (7), footstock (8) and flue masonry (9), flue cover plate (10), it is characterized in that the curved plate body of spool (1) for the rotating shaft of middle band, the curved surface orthographic projection is well-regulated geometric figure, curved surface edge mosaic sealing material (6), flue masonry (9) inner wall section shape is corresponding with the orthographic projection figure of spool (1), and curved surface rotation maximum radius is slightly larger than 1/2 of flue masonry (9) inwall Extreme breadth.
2. Precision trimming Flue valve according to claim 1 is characterized in that the curved surface plate body intermediate portion of spool (1) is the rectangle plane plate, and the surface plate two ends connect the curved surface plate body; Or be formed by connecting by two curved surface plate bodys, its orthographic projection is a rectangle, flue masonry (9) inner wall section is a rectangle.
3. Precision trimming Flue valve according to claim 1 and 2 is characterized in that described curved surface plate body can be arc shaped surface, parabola shaped panel body etc.
4. Precision trimming Flue valve according to claim 1 and 2 is characterized in that rotating shaft two N-Side surfs are provided with stiffening rib.
5. Precision trimming Flue valve according to claim 1 and 2 is characterized in that sealing material is the heat resistance fiber felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96231116 CN2252917Y (en) | 1996-01-18 | 1996-01-18 | Precision regulating smoke duct valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96231116 CN2252917Y (en) | 1996-01-18 | 1996-01-18 | Precision regulating smoke duct valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2252917Y true CN2252917Y (en) | 1997-04-23 |
Family
ID=33908375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96231116 Expired - Lifetime CN2252917Y (en) | 1996-01-18 | 1996-01-18 | Precision regulating smoke duct valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2252917Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230068A (en) * | 2011-05-17 | 2011-11-02 | 马鞍山钢铁股份有限公司 | Driving mechanism of billet heating furnace flue damper and control method thereof |
-
1996
- 1996-01-18 CN CN 96231116 patent/CN2252917Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230068A (en) * | 2011-05-17 | 2011-11-02 | 马鞍山钢铁股份有限公司 | Driving mechanism of billet heating furnace flue damper and control method thereof |
| CN102230068B (en) * | 2011-05-17 | 2013-03-27 | 马鞍山钢铁股份有限公司 | Driving mechanism of billet heating furnace flue damper and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |