CN203395200U - Steam heat-preservation blasting gas butterfly valve with linear sealing structure - Google Patents
Steam heat-preservation blasting gas butterfly valve with linear sealing structure Download PDFInfo
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- CN203395200U CN203395200U CN201320494091.XU CN201320494091U CN203395200U CN 203395200 U CN203395200 U CN 203395200U CN 201320494091 U CN201320494091 U CN 201320494091U CN 203395200 U CN203395200 U CN 203395200U
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Abstract
The utility model discloses a steam heat-preservation blasting gas butterfly valve with a linear sealing structure, and belongs to the field of pipeline valves. The valve comprises a main valve body and a transmission device, which are fixedly connected, wherein a blasting device, a valve seat, a butterfly plate and a valve rod are arranged in the main valve body. The valve is characterized in that the main valve body is provided with an integrated jacket with an inlet and an outlet; the inlet and the outlet are symmetrical about the pipeline centerline of the main valve body; the butterfly plate is provided with a composite sealing ring; the linear sealing structure is adopted for the sealing surface of the valve seat and the composite sealing ring. According to the valve, the integrated jacket is arranged, and a thermal medium such as steam/hot water is cyclically heated in the jacket of the main valve body through the inlet and the outlet, so that a heat-preservation effect is improved; coal tar adhered to the metal sealing surface can be better cleaned under the action of the blasting device, so that the valve can be more flexibly opened and closed; the linear sealing structure is adopted for the sealing surfaces of the main valve body and the butterfly plate, and a composite sealing mode is adopted for a valve plate, so that the deposition of impurities in gas can be avoided due to a small contact surface, and a better sealing effect is achieved.
Description
Technical field
The utility model provides a kind of steam insulation winding-up linear sealing structure gas butterfly valve, belongs to pipeline valve field.
Background technique
Existing steam blast metal hard-sealing butterfly valve, when outside air temperature reduces, in gas pipe line, impurity and coal tar oil easily solidify, and the winding-up making is not thorough, and difficult spray is swept clean, affects gas valve sealing.
Chinese patent CN200920097707.3 discloses the special-purpose butterfly valve of a kind of blowing type coal gas.The special-purpose butterfly valve of this coal gas comprises the surface seal structure sealing surface being formed by valve body and valve plate sealing, on the inwall of valve body, be fixed with annular vapor pipe, on the tube wall of the annular vapor pipe towards sealing surface, be provided with several winding-ups mouthful, annular vapor pipe port closed wherein, another port leads on the outer wall of valve body and is connected with pipe valve.Realized high-temperature vapour has evenly been jetted to holding on susceptible to plugging sealing surface, the function that is set in the coal tar oil on sealing surface is dissolved in dilution, the deficiency existing is that valve adopts surface seal structure sealing surface tolerance easily on sealing surface, to accumulate impurity, makes winding-up not thorough, affects valve seal.
Model utility content
According to above deficiency of the prior art, problem to be solved in the utility model is: provide the existing gas injection butterfly valve of a kind of solution because adopt surface seal structure, sealing surface is wider, impurity or coal tar oil easily accumulate, poorly sealed close problem after solidifying, simultaneously the steam insulation gas injection butterfly valve of high insulating effect.
The utility model solves the technological scheme that its technical problem adopts: steam insulation winding-up linear sealing structure gas butterfly valve, comprise the main valve body and the transmission device that are fixedly connected with, blowing device, valve seat, butterfly plate and valve rod are set in main valve body, it is characterized in that: main valve body arranges integral type chuck, chuck arranges export and import, the mounting point of export and import is symmetrical about main valve body pipeline center line, butterfly plate arranges composite sealing ring, and the sealing surface of valve seat and composite sealing ring adopt linear sealing structure.
Change original steam blast metal hard-sealing butterfly valve surface seal structure into linear sealing structure, because surface of contact is little, do not accumulate, and on this basis, integral type chuck is set, by import and export, make thermal medium circulating-heatings in main valve body chuck such as steam/heat water, when particularly winter, outside air temperature reduced, solidifying does not appear in the interior impurity of gas pipe line or coal tar oil, makes valve opening and closing flexible, and sealing is tight.
Wherein preferred version is:
Described butterfly plate is by the fixing composite sealing ring of annular pressing plate and screw.
Described composite sealing ring arranges gradient wedge angle.Compound seal surface adopts gradient wedge angle, even if sealing surface adheres to a small amount of coal tar oil pulverized fuel ash, also can under wedge angle effect, impurity be scraped off, and makes valve opening and closing more flexible, seals more reliable.
Described outlet is arranged on main valve body bottom, and import is arranged on upper part of the main valve body.Line between import and outlet can with valve rod at an angle, arrange as required.Facilitate like this vapor recycle, heat insulation effect is better.
Described export and import arranges respectively adpting flange.Increase the simplicity that connects steam pipework.
The beneficial effect that steam insulation winding-up linear sealing structure gas butterfly valve of the present utility model has is: by changing original surface seal structure into linear sealing structure, make impurity more be difficult for accumulating on sealing surface, in addition on original steam winding-up metal hard-sealing butterfly valve basis, integral type chuck is set, by import and export, make thermal medium circulating-heatings in main valve body chuck such as steam/heat water, thermal medium enters chuck from import, while discharging from outlet, whole peripheries of main valve body pipeline have been walked around, steam flow and heat exchange area have been increased, improve heat insulation effect, make valve opening and closing more flexible, seal more reliable, can not only automatically keep medium temperature in valve to make it softening, and can better remove the coal tar oil adhering on metallic sealing section under blowing device effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of chuck of the present utility model;
Fig. 3 is the structural representation of linear sealing of the present utility model;
Wherein: 1, transmission device 2, main valve body 3, import 4, export 5, suction valve 6, chuck 7, valve rod 8, butterfly plate 9, retaining ring 10, annular pressing plate.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Embodiment 1:
As shown in Figure l, main valve body 2 is fixedly connected with transmission device 1, interior blowing device, valve seat, butterfly plate and the valve rod of arranging of main valve body 2, main valve body 2 arranges integral type chuck 6, chuck 6 arranges import 4 and outlet 3, the mounting point of import 4 and outlet 3 is symmetrical about main valve body 2 pipeline center lines, and butterfly plate 8 arranges composite sealing ring, and the sealing surface of valve seat and composite sealing ring adopt linear sealing structure.
On original steam winding-up metal hard-sealing butterfly valve basis, integral type chuck 6 is set, by import and export, make the thermal mediums such as steam/heat water at the interior circulating-heating of main valve body chuck 6.On the side of main valve body 2, be fixed with the suction valve 5 of steam blast device, in main valve body 2 inner sides over against air valve, have fixed installation blowing device.
Retaining ring 9 belows are provided with seal ring, and butterfly plate 8 is by the fixing composite sealing ring of annular pressing plate 10 and screw.Butterfly plate 8 is arranged in main valve body 2 by valve rod 7, and closely cooperates with the seal ring of butterfly plate 8, under Worm Wheel System, opens and closes flexibly.Import 3 and the outlet 4 arbitrarily angled setting that can tilt at the chuck 6 of main valve body 2.
Composite sealing ring arranges gradient wedge angle.Compound seal surface adopts gradient wedge angle, even if sealing surface adheres to a small amount of coal tar oil pulverized fuel ash, also can under wedge angle effect, impurity be scraped off, and makes valve opening and closing more flexible, seals more reliable.
Embodiment 2:
On embodiment 1 basis, import 3 is arranged on main valve body 2 bottoms, exports 4 and is arranged on main valve body 2 tops.Line between import and outlet can with valve rod at an angle, arrange as required.
Embodiment 3:
On above embodiment's basis, import 4 arranges respectively flange with outlet 3 and is connected, and increases the simplicity that connects steam pipework.
Blowing device, butterfly plate and the valve rod of the main valve body 2 of mentioning in the utility model, and the suction valve 5 of blowing device and the concrete structure of transmission device 1 and use as common prior art, by the industry, technician is grasped.Those skilled in the art recognize because of this, and above embodiment is only for the utility model is described, and is not used for doing restriction of the present utility model.As long as within the scope of connotation of the present utility model, to the above embodiment's modification, variation, all will drop within the scope of claim of the present utility model.
Claims (6)
1. steam insulation winding-up linear sealing structure gas butterfly valve, comprise the main valve body (2) and the transmission device (1) that are fixedly connected with, blowing device, valve seat, butterfly plate (8) and valve rod (7) are set in main valve body (2), it is characterized in that: main valve body (2) arranges integral type chuck (6), chuck arranges outlet (4) and import (3), the mounting point of outlet (4) and import (3) is symmetrical about main valve body (2) pipeline center line, butterfly plate (8) arranges composite sealing ring, and the sealing surface of valve seat and composite sealing ring adopt linear sealing structure.
2. steam insulation according to claim 1 winding-up linear sealing structure gas butterfly valve, is characterized in that: described butterfly plate (8) is by the fixing composite sealing ring of annular pressing plate (10) and screw.
3. steam insulation winding-up linear sealing structure gas butterfly valve according to claim 1 and 2, is characterized in that: described composite sealing ring arranges gradient wedge angle.
4. steam insulation winding-up linear sealing structure gas butterfly valve according to claim 1, is characterized in that: described valve seat arranges retaining ring (9), and retaining ring (9) arranges sealing surface, and sealing surface is inclined-plane, and inclined-plane and composite sealing ring adapt.
5. steam insulation winding-up linear sealing structure gas butterfly valve according to claim 1, is characterized in that: described outlet (4) is arranged on main valve body (2) bottom, and import (3) is arranged on main valve body (2) top.
6. steam insulation winding-up linear sealing structure gas butterfly valve according to claim 1 or 5, is characterized in that: described outlet (4) and import (3) arrange respectively adpting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494091.XU CN203395200U (en) | 2013-08-13 | 2013-08-13 | Steam heat-preservation blasting gas butterfly valve with linear sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494091.XU CN203395200U (en) | 2013-08-13 | 2013-08-13 | Steam heat-preservation blasting gas butterfly valve with linear sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395200U true CN203395200U (en) | 2014-01-15 |
Family
ID=49906733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320494091.XU Expired - Lifetime CN203395200U (en) | 2013-08-13 | 2013-08-13 | Steam heat-preservation blasting gas butterfly valve with linear sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395200U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757957A (en) * | 2018-06-19 | 2018-11-06 | 江苏锐鸿机械有限公司 | The antifreeze butterfly valve stablized |
| CN110227674A (en) * | 2018-03-06 | 2019-09-13 | 兰州兰石重型装备股份有限公司 | Flange sealing surface leaks blow device and its application method |
-
2013
- 2013-08-13 CN CN201320494091.XU patent/CN203395200U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227674A (en) * | 2018-03-06 | 2019-09-13 | 兰州兰石重型装备股份有限公司 | Flange sealing surface leaks blow device and its application method |
| CN108757957A (en) * | 2018-06-19 | 2018-11-06 | 江苏锐鸿机械有限公司 | The antifreeze butterfly valve stablized |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
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| CX01 | Expiry of patent term |