CN204961858U - Desulfurization butterfly valve - Google Patents
Desulfurization butterfly valve Download PDFInfo
- Publication number
- CN204961858U CN204961858U CN201520755900.7U CN201520755900U CN204961858U CN 204961858 U CN204961858 U CN 204961858U CN 201520755900 U CN201520755900 U CN 201520755900U CN 204961858 U CN204961858 U CN 204961858U
- Authority
- CN
- China
- Prior art keywords
- valve
- rubber ring
- valve body
- seal ring
- 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 - Fee Related
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Abstract
The utility model discloses a desulfurization butterfly valve, include: valve rod, valve body and butterfly plate, the periphery of butterfly plate is provided with a rubber ring, the inner wall of rubber ring is an inclined plane, the outer wall of rubber ring is the profile of tooth structure, the outer wall and the valve body of rubber ring are closely laminated, valve rod upper portion is provided with first sealing washer with valve body contact portion, valve rod middle part and lower part and valve body contact portion are provided with the second sealing washer, form a cavity between the second sealing washer at first sealing washer and valve rod middle part. In this way, the utility model discloses can improve corrosion -resistant and wearability.
Description
Technical field
The utility model relates to valve technology field, particularly relates to a kind of desulfurization butterfly valve.
Background technique
In prior art, desulfurization butterfly valve is a kind of valve as opening, cutting out and regulate fluid passage.In use, desulfurization butterfly valve must meet corrosion, wearing and tearing, flow velocity, some requirement such as temperature, and there are some shortcomings in the desulfurization butterfly valve being applied to coal field at present, a certain amount of chlorion and chlorion is there will be in flue gas after burning, ducted particulate matter can be deposited on valve port place, open or closed time add the wearing and tearing of butterfly plate, thus also reduce sealability.
Model utility content
The technical problem that the utility model mainly solves is to provide a kind of desulfurization butterfly valve, can improve corrosion-resistant and wear resistance.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: provide a kind of desulfurization butterfly valve, comprise: valve rod, valve body and butterfly plate, the periphery of described butterfly plate is provided with a rubber ring, the inwall of described rubber ring is a plane of inclination, the outer wall of described rubber ring is tooth-shape structure, outer wall and the valve body of described rubber ring fit tightly, described valve rod top and valve body contact portion are provided with the first seal ring, in the middle part of described valve rod, valve body contact portion is provided with the second seal ring, between described first seal ring and the second seal ring, forms a cavity.
In the utility model preferred embodiment, described first seal ring is provided with air outlet.
In the utility model preferred embodiment, the below of described second seal ring is built in the outer wall square groove of rubber ring.
The beneficial effects of the utility model are: the mode that the utility model adopts butterfly plate to rotate together with rubber ring, reduce wear, change the sealing means of seal ring, and reduce dust accumulation, improve rotproofness.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the utility model desulfurization butterfly valve;
Fig. 2 is the close-up schematic view in Fig. 1 shown in A.
In accompanying drawing, the mark of each parts is as follows: 1, valve rod; 2, valve body; 3, butterfly plate; 4, rubber ring; 5, the first seal ring; 6, the second seal ring; 41, plane of inclination; 40, square groove; 50, air outlet.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Refer to Fig. 1 and Fig. 2, the utility model is embodiment comprise: a kind of desulfurization butterfly valve, comprise: valve rod 1, valve body 2 and butterfly plate 3, the periphery of described butterfly plate 3 is provided with a rubber ring 4, the inwall of described rubber ring 4 is a plane of inclination 41, the outer wall of described rubber ring 4 is tooth-shape structure, outer wall and the valve body 2 of described rubber ring 4 fit tightly, described valve rod 1 top and valve body 2 contacting part are provided with the first seal ring 5, in the middle part of described valve rod 1, valve body 2 contacting part is provided with the second seal ring 6, between described first seal ring 5 and the second seal ring 6, forms a cavity.
Furtherly, described first seal ring 5 is provided with air outlet 50; The below of described second seal ring 6 is built in the outer wall square groove 40 of rubber ring 4.
The utility model desulfurization butterfly valve is when closed, butterfly plate 3 rotates together with rubber ring 4, not friction between butterfly plate 3 and rubber ring 4, because the area of contact between the outer wall tooth-shape structure of rubber ring 4 and valve body 2 is little, and slightly rub between rubber ring 4 and valve body 1, improve wear resistance, in addition because the inwall of rubber ring 4 is a plane of inclination, particulate matter in flue gas after burning can not be deposited on valve port place, decrease the corrosion to valve port, improve rotproofness, when desulfurization butterfly valve is when opening, extrusion abrasion can not be produced between rubber ring 4 and valve body 1, the air pressure cavity formed between first seal ring 5 and the second seal ring 6 time closed also discharges thereupon, seal ring is also played a very good protection.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a desulfurization butterfly valve, comprise: valve rod, valve body and butterfly plate, it is characterized in that, the periphery of described butterfly plate is provided with a rubber ring, the inwall of described rubber ring is a plane of inclination, the outer wall of described rubber ring is tooth-shape structure, outer wall and the valve body of described rubber ring fit tightly, described valve rod top and valve body contact portion are provided with the first seal ring, in the middle part of described valve rod and bottom and valve body contact portion is provided with the second seal ring, forms a cavity between the second seal ring in the middle part of described first seal ring and valve rod.
2. desulfurization butterfly valve according to claim 1, is characterized in that: described first seal ring is provided with air outlet.
3. desulfurization butterfly valve according to claim 1, is characterized in that: the below of described second seal ring is built in the outer wall square groove of rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520755900.7U CN204961858U (en) | 2015-09-28 | 2015-09-28 | Desulfurization butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520755900.7U CN204961858U (en) | 2015-09-28 | 2015-09-28 | Desulfurization butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961858U true CN204961858U (en) | 2016-01-13 |
Family
ID=55056927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520755900.7U Expired - Fee Related CN204961858U (en) | 2015-09-28 | 2015-09-28 | Desulfurization butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134977A (en) * | 2015-09-28 | 2015-12-09 | 苏州洛特兰新材料科技有限公司 | Butterfly valve for desulfuration |
-
2015
- 2015-09-28 CN CN201520755900.7U patent/CN204961858U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134977A (en) * | 2015-09-28 | 2015-12-09 | 苏州洛特兰新材料科技有限公司 | Butterfly valve for desulfuration |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160928 |