CN201884679U - Coal gas isolating valve - Google Patents
Coal gas isolating valve Download PDFInfo
- Publication number
- CN201884679U CN201884679U CN2010206819112U CN201020681911U CN201884679U CN 201884679 U CN201884679 U CN 201884679U CN 2010206819112 U CN2010206819112 U CN 2010206819112U CN 201020681911 U CN201020681911 U CN 201020681911U CN 201884679 U CN201884679 U CN 201884679U
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- valve
- air outlet
- valve body
- rotating shaft
- plate
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- Expired - Fee Related
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Abstract
The utility model discloses a coal gas isolating valve, which can be opened or closed with pressure and effectively cut off coal gas. The isolating valve comprises a valve body provided with an air inlet and an air outlet, wherein the air outlet comprises inner ends arranged in the valve body, and further comprises a rotating shaft and a valve plate; one end of the rotating shaft is arranged in and in running fit with the valve body, and the other end thereof is arranged outside the valve body and connected with a driving device; the valve plate is arranged in the valve body, and covers and seals the air outlet; a plate face of the valve plate is in contact fit with end faces of the inner ends of the air outlet; and a connecting bar driven by the rotating shaft and used for driving the valve plate to rotate in the valve body is connected between the rotating shaft and the valve plate. The sealing effect can be improved in virtue of the pressure of the coal gas, so that the isolating valve can cut off the coal gas more effectively.
Description
Technical field
The utility model relates to a kind of gas stop valve.
Background technique
In the big-and-middle-sized gas pipeline of iron and steel and metallurgical class enterprise, generally be to adopt the two-stage valve to cut off ducted coal gas medium at present, the prime valve is a butterfly valve, and a back level valve is a glasses valve.The butterfly valve of prime can be with to press and open and close, but its poor sealing performance, and the glasses valve of back level can not be with to press and open and close, but its good seal performance.So, normal use for gas pipeline, prevent gas leakage, generally adopt the two-stage valve: the pressure difference after reducing with the prime butterfly valve in the gas pipe line of level glasses valve front end and back end, realize the cut-out fully and the sealing of gas pipeline with back level glasses valve.The deficiency of said structure is: the easily long-pending gas black dirt in the valve plate of butterfly valve and valve seat place, the black dirt of these positions is easy-clear not, often cause butterfly valve to be not closed completely, erosive wear is serious, finally cause butterfly valve body perforation gas leakage, make and to adjust the pressure difference of glasses valve front end and back end, and then cause whole production system normally not stop transport by butterfly valve; And glasses valve is soft seal, and seal ring easily scratches damage and aging, and seal ring can cause valve seal not tight after losing efficacy, can't normal cutoff coal gas.
In addition, existing cut-off valve generally comprises the valve body that is provided with air intake and air outlet, and described air outlet comprises the inner that is positioned at valve inner, and this inner comprises inner end face and inner outer wall, and valve inner is provided with spool, realizes the cut-out of gas by spool.But existing cut-off valve inner spool is comparatively complicated, and maintenance is difficulty comparatively.
The model utility content
The technical problem that the utility model solves provide a kind of can be with pressing off the gas stop valve that closes and can effectively cut off coal gas.
The technological scheme that its technical problem that solves the utility model adopts is: gas stop valve, comprise the valve body that is provided with air intake and air outlet, described air outlet comprises the inner that is positioned at valve inner, also comprise rotating shaft and valve plate, described rotating shaft one end is positioned at valve inner and is rotatably assorted with valve body, and the other end is positioned at the valve body outside and links to each other with drive unit; Described valve plate is positioned at valve inner and the air outlet is hidden sealing, the end face contact matching of the plate face of valve plate and the inner of air outlet; Be connected with between above-mentioned rotating shaft and the valve plate by rotating shaft and drive and drive the connecting rod that valve plate rotates in valve body.
Further be: described rotating shaft axially and air outlet axial vertical.
Further be: the inner of the air outlet, plate face upper edge of described valve plate circumferentially be provided with the loop configuration that forms hard sealing pair with the outer wall of the inner of air outlet.
Further be: described connecting rod comprises mobile jib and secondary bar, and an end of described mobile jib links to each other with rotating shaft, and the other end of mobile jib links to each other with valve plate by secondary bar, and above-mentioned mobile jib and secondary bar are hinged.
Further be: described mobile jib is axial vertical with rotating shaft, and described secondary bar is vertical with valve plate.
Further be: described valve body is provided with the air blowing through hole towards the inner of described air outlet, and described air blowing through hole is sealed by sealing configuration.
Further be: described sealing configuration is a sealing cover.
Further be: described valve body is provided with at least one access opening that is communicated with valve inner, and described access opening seals by sealing configuration.
Further be: described sealing configuration is a sealing plate.
The beneficial effects of the utility model are: after valve plate hides sealing with the air outlet, because the plate face of valve plate and the inner end face contact matching of air outlet, under the gas pressure effect, the plate face of valve plate and the inner end face of air outlet press mutually, and then improved the sealing effect of valve plate to the air outlet, and so can be used as the auxiliary seal medium, coal gas impel valve plate with air outlet effective seal more, gas pressure is big more, sealing effect is good more, can effectively cut off coal gas.In addition, gas stop valve of the present utility model can be realized opening and closing under band pressure situation.
Description of drawings
Fig. 1 is the schematic representation that valve plate seals the air outlet among the embodiment one;
Fig. 2 is for turning to valve plate among the embodiment one schematic representation with the parallel to an axis of air outlet;
Fig. 3 is that the A of valve plate among Fig. 2 is to view;
Fig. 4 is the schematic representation of a straight-bar for connecting rod among the embodiment one;
Fig. 5 is embodiment five a schematic representation.
Be labeled as among the figure: 1-valve body, 2-mobile jib, the secondary bar of 3-, 4-connecting rod, 5-rotating shaft, 6-valve plate, 7-end face, 8-plate face, 9-air outlet, 10-sealing plate, 11-access opening, 12-suction port, 13-loop configuration, 14-outer wall, 15-the inner, 16-air blowing through hole.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
As depicted in figs. 1 and 2, gas stop valve, comprise the valve body 1 that is provided with air intake 12 and air outlet 9, described air outlet 9 comprises the inner 15 that is positioned at valve body 1 inside, also comprise rotating shaft 5 and valve plate 6, described rotating shaft 5 one ends are positioned at valve body 1 inside and are rotatably assorted with valve body 1, and the other end is positioned at valve body 1 outside and links to each other with drive unit; Described valve plate 6 is positioned at valve body 1 inside and air outlet 9 is hidden sealing, the plate face 8 of valve plate 6 and end face 7 contact matching of the inner 15 of air outlet 9; Be connected with between above-mentioned rotating shaft 5 and the valve plate 6 by rotating shaft 5 and drive and drive the connecting rod 4 that valve plate 6 rotates in valve body 1.Above-mentioned drive unit can be motor mechanism or cylinder mechanism etc.Adopt said structure, can drive rotating shaft by drive unit rotates, the rotation of rotating shaft can drive connecting rod and rotate, the rotation of connecting rod can drive valve plate and rotate in valve body, when the coal gas in the needs cut-out pipeline, valve plate can be rotated, until the air outlet is hidden, make the plate face 8 of valve plate 6 and end face 7 contact matching of the inner 15 of air outlet 9, pressure effect by valve inner coal gas, the plate face of valve plate and the inner end face of air outlet are pressed mutually, and then can effectively cut off the coal gas in the pipeline; When the coal gas in the needs connection pipeline, can pass through rotational valve plate, the air outlet is opened, coal gas can be flowed out from the air outlet.
Embodiment one:
As shown in Figures 1 to 4, gas stop valve, comprise the valve body 1 that is provided with air intake 12 and air outlet 9, described air outlet 9 comprises the inner 15 that is positioned at valve body 1 inside, also comprise rotating shaft 5 and valve plate 6, it is inner and be rotatably assorted with valve body 1 that above-mentioned rotating shaft 5 one ends are positioned at valve body 1, and it is outside and link to each other with drive unit that the other end is positioned at valve body 1, the axial and air outlet 9 of above-mentioned rotating shaft 5 axial vertical; Described valve plate 6 is positioned at valve body 1 inside and air outlet 9 is hidden sealing, the plate face 8 of valve plate 6 and end face 7 contact matching of the inner 15 of air outlet 9; Be connected with between above-mentioned rotating shaft 5 and the valve plate 6 by rotating shaft 5 and drive and drive the connecting rod 4 that valve plate 6 rotates in valve body 1.The mode of execution of above-mentioned connecting rod 4 can have multiple, and for example above-mentioned connecting rod 4 can be a straight-bar, also can be the connecting rod of a L shaped shape.
Adopt said structure, during use, can be by the rotation of rotating shaft, the rotation of drive connecting rod, and then impelling valve plate to rotate, this rotation is upset, promptly as depicted in figs. 1 and 2, valve plate turn to Fig. 2 position from Fig. 1 position, this upset can make the parallel to an axis of valve plate and air outlet, and then can reduce coal gas souring to valve plate when flowing, and promptly reduces valve plate washes away generation because of coal gas wearing and tearing, can keep valve plate and air outlet no-float for a long time like this, it is firm to seal.
Embodiment two:
On embodiment one basis, the inner 15 of the air outlet, plate face 8 upper edge 9 of described valve plate 6 circumferentially be provided with the loop configuration 13 that forms hard sealing pair with the outer wall 14 of the inner 15 of air outlet 9.The inwall of above-mentioned loop configuration 13 contacts with the outer wall 14 of the inner 15 of air outlet 9.Above-mentioned loop configuration can be made by metallic material, and for example cemented carbide etc. also can be made by macromolecular material etc.Owing to form hard sealing pair, increased the sealing effect of air outlet on the one hand, on the other hand, loop configuration 13 is difficult for because of scuffing damages, also can be easy to be not aging as sealing rubber circle.
Embodiment three:
On embodiment two basis, described connecting rod 4 comprises mobile jib 2 and secondary bar 3, and an end of described mobile jib 2 links to each other with rotating shaft 5, and the other end of mobile jib 2 links to each other with valve plate 6 by secondary bar 3, and above-mentioned mobile jib 2 and secondary bar 3 are hinged.Because valve plate is provided with loop configuration, make the plate face of valve plate and the inner end face no-float of air outlet, just need make the outer wall no-float of the inner of loop configuration and air outlet, adopt said structure, hinged by mobile jib and secondary bar, can form an automatic controlling mechanism in valve plate position, when the loop configuration on the valve plate contacts with the air outlet, effect by gas pressure, can impel the valve plate position to finely tune, make loop configuration be adjusted to outer wall no-float with the inner of air outlet, and then can guarantee the plate face of valve plate and the inner end face no-float of air outlet.
Embodiment four:
On embodiment three basis, described mobile jib 2 is axial vertical with rotating shaft 5, and described secondary bar 3 is vertical with valve plate 6.Adopt said structure, be convenient to connecting rod is provided with, also be convenient to the flip angle of valve plate is controlled.
Embodiment five:
As shown in Figure 5, gas stop valve, comprise the valve body 1 that is provided with air intake 12 and air outlet 9, described air outlet 9 comprises the inner 15 that is positioned at valve body 1 inside, also comprise rotating shaft 5 and valve plate 6, above-mentioned rotating shaft 5 one ends are positioned at valve body 1 inside and are rotatably assorted with valve body 1, and the other end is positioned at valve body 1 outside and links to each other the parallel to an axis of the axial and air outlet 9 of above-mentioned rotating shaft 5 with drive unit; Described valve plate 6 is positioned at valve body 1 inside and air outlet 9 is hidden sealing, the plate face 8 of valve plate 6 and end face 7 contact matching of the inner 15 of air outlet 9; Be connected with between above-mentioned rotating shaft 5 and the valve plate 6 by rotating shaft 5 and drive and drive the connecting rod 4 that valve plate 6 rotates in valve body 1.
Adopt said structure, can under the drive of rotating shaft valve plate be rotated, this rotation be for flatting turn, and promptly valve plate rotates in same plane, so also can realize the switching by the rotation control air outlet of valve plate.
Embodiment six:
On above-mentioned any one embodiment's basis, described valve body 1 is provided with the air blowing through hole 16 towards the inner 15 of described air outlet 9, and described air blowing through hole 16 is sealed by sealing configuration.Above-mentioned sealing configuration can be sealing cover, by sealing cover is set on valve body, the air blowing through hole is hidden sealing, and above-mentioned sealing configuration also can be plug, promptly by the plug that is arranged on air blowing through hole inside the air blowing through hole is sealed.After piling up a large amount of dusts on the inner of the air outlet of valve body, sealing configuration on the air blowing through hole 16 can be opened, on air blowing through hole 16, connect blowning installation, inner blowing gas to the air outlet of valve body, dust can be cleared up, help keeping the inner no-float of valve plate and air outlet like this, guarantee that sealing is firm.
Embodiment seven:
On above-mentioned any one embodiment's basis, described valve body 1 is provided with the access opening 11 of at least one and valve body 1 internal communication, and described access opening 11 seals by sealing configuration.Above-mentioned sealing configuration can be for being arranged on sealing cover on the valve body or sealing plate 10 etc.Can be conveniently the parts of valve inner be overhauled by access opening 11 is set, for example in use for some time, change valve plate etc.
Claims (9)
1. gas stop valve, comprise the valve body (1) that is provided with air intake (12) and air outlet (9), described air outlet (9) comprises the inner (15) that is positioned at valve body (1) inside, it is characterized in that: also comprise rotating shaft (5) and valve plate (6), described rotating shaft (5) one ends are positioned at valve body (1) inside and are rotatably assorted with valve body (1), and the other end is positioned at valve body (1) outside and links to each other with drive unit; Described valve plate (6) is positioned at valve body (1) inside and air outlet (9) is hidden sealing, end face (7) contact matching of the plate face (8) of valve plate (6) and the inner (15) of air outlet (9); Be connected with between above-mentioned rotating shaft (5) and the valve plate (6) by rotating shaft (5) and drive and drive the connecting rod (4) that valve plate (6) rotates in valve body (1).
2. gas stop valve as claimed in claim 1 is characterized in that: described rotating shaft (5) axially and air outlet (9) axial vertical.
3. gas stop valve as claimed in claim 2 is characterized in that: the inner (15) of plate face (8) air outlet, upper edge (9) of described valve plate (6) circumferentially be provided with the loop configuration (13) that forms hard sealing pair with the outer wall (14) of the inner (15) of air outlet (9).
4. gas stop valve as claimed in claim 3, it is characterized in that: described connecting rod (4) comprises mobile jib (2) and secondary bar (3), one end of described mobile jib (2) links to each other with rotating shaft (5), the other end of mobile jib (2) links to each other with valve plate (6) by secondary bar (3), and above-mentioned mobile jib (2) is hinged with secondary bar (3).
5. gas stop valve as claimed in claim 4 is characterized in that: described mobile jib (2) is axial vertical with rotating shaft (5), and described secondary bar (3) is vertical with valve plate (6).
6. gas stop valve as claimed in claim 1 is characterized in that: described valve body (1) is provided with the air blowing through hole (16) towards the inner (15) of described air outlet (9), and described air blowing through hole (16) is sealed by sealing configuration.
7. gas stop valve as claimed in claim 6 is characterized in that: described sealing configuration is a sealing cover.
8. as any described gas stop valve in the claim 1 to 7, it is characterized in that: described valve body (1) is provided with the access opening (11) of at least one and valve body (1) internal communication, and described access opening (11) seals by sealing configuration.
9. gas stop valve as claimed in claim 8 is characterized in that: described sealing configuration is sealing plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206819112U CN201884679U (en) | 2010-12-27 | 2010-12-27 | Coal gas isolating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206819112U CN201884679U (en) | 2010-12-27 | 2010-12-27 | Coal gas isolating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884679U true CN201884679U (en) | 2011-06-29 |
Family
ID=44182221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206819112U Expired - Fee Related CN201884679U (en) | 2010-12-27 | 2010-12-27 | Coal gas isolating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755679A (en) * | 2017-01-17 | 2017-05-31 | 山东钢铁集团日照有限公司 | A kind of top gas stop valve |
-
2010
- 2010-12-27 CN CN2010206819112U patent/CN201884679U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755679A (en) * | 2017-01-17 | 2017-05-31 | 山东钢铁集团日照有限公司 | A kind of top gas stop valve |
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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: 20110629 Termination date: 20151227 |
|
| EXPY | Termination of patent right or utility model |