CN213176838U - A ventilation butterfly valve for pitch flue gas - Google Patents
A ventilation butterfly valve for pitch flue gas Download PDFInfo
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- CN213176838U CN213176838U CN202021833845.6U CN202021833845U CN213176838U CN 213176838 U CN213176838 U CN 213176838U CN 202021833845 U CN202021833845 U CN 202021833845U CN 213176838 U CN213176838 U CN 213176838U
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Abstract
The utility model discloses a ventilation butterfly valve for asphalt smoke, which comprises a valve body, wherein a circle of sealing steel plate is arranged on the inner wall of the valve body, an annular valve plate is arranged in the valve body, a circle of graphite sealing ring matched with the sealing steel plate is arranged on the valve plate, a valve rod is arranged at the upper end of the valve plate, and the lower end of the valve plate is connected with a driving device through a rotating rod; the valve rod penetrates through the valve body and extends to the upper end of the valve body, the valve rod is connected with the valve body through a basic flange, and an inner hole of the basic flange is a conical hole; a sealing flange is arranged on the basic flange, and a graphite sealing packing is arranged between the sealing flange and the basic flange. The scheme is used for a pipeline system of asphalt smoke, has good tightness, flexible action after long-time use, light weight, convenient maintenance and economic price.
Description
Technical Field
The utility model relates to a technical field is collected to the pitch flue gas, concretely relates to ventilation butterfly valve for pitch flue gas.
Background
The butterfly valve used on the asphalt smoke collecting and processing system pipeline in the domestic carbon industry is mostly manufactured on site, the simple butterfly valve has large air leakage amount and poor valve rod sealing, and tar can be leaked from the valve rod. Some manufacturers adopt a ventilation butterfly valve or a butterfly valve for steam, the butterfly valve has good tightness and can not leak, but the phenomenon that the valve is blocked can be caused because tar in asphalt smoke is solidified around the valve rod, and the phenomenon that the valve is blocked can be solved by adopting a heat-conducting oil heat-insulating valve.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art, the utility model provides a ventilation butterfly valve for pitch flue gas that the seal is good.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
the ventilation butterfly valve for the asphalt smoke comprises a valve body, wherein a circle of sealing steel plate is arranged on the inner wall of the valve body, an annular valve plate is arranged in the valve body, a circle of graphite sealing ring matched with the sealing steel plate is arranged on the valve plate, a valve rod is arranged at the upper end of the valve plate, and the lower end of the valve plate is connected with a driving device through a rotating rod; the valve rod penetrates through the valve body and extends to the upper end of the valve body, the valve rod is connected with the valve body through a basic flange, and an inner hole of the basic flange is a conical hole; a sealing flange is arranged on the basic flange, and a graphite sealing packing is arranged between the sealing flange and the basic flange.
The utility model has the advantages that: this scheme is used for the pipe-line system of pitch flue gas on, drives sealed steel sheet at the valve body internal rotation through drive arrangement, realizes closing and opening of valve body, and the graphite sealing ring on the valve plate cooperates with sealed steel sheet, realizes the sealing on the valve body latus rectum. The inner hole of the basic flange is processed into a conical hole, the conical hole faces the inner side of the valve body, tar in the asphalt smoke is condensed on the valve rod and then can flow into a pipeline along the inclined plane of the conical hole, so that the valve rod is not easy to block, and the valve rod is prevented from being incapable of rotating. The graphite sealing packing can effectively prevent asphalt-free smoke tar at each position of the valve rod from leaking.
Drawings
Fig. 1 is a block diagram of a ventilation butterfly valve for asphalt fumes.
FIG. 2 is a top view of a vent butterfly valve for asphalt fumes.
Fig. 3 is a structural diagram of a partial enlargement a.
The sealing device comprises a sealing steel plate 1, a sealing steel plate 2, reinforcing ribs 3, a reinforcing plate 4, a valve plate 5, a graphite sealing ring 6, a rotating rod 7, a driving device 8, a valve body 9, a base flange 10, an O-shaped sealing ring 11, a graphite sealing packing 12, a valve rod 13, a sealing flange 14, a movable flange 15 and a conical hole.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.
As shown in fig. 1 to 3, the ventilation butterfly valve for asphalt smoke according to the scheme comprises a valve body 8, wherein a circle of sealing steel plate 1 is arranged on the inner wall of the valve body 8, an annular valve plate 4 is arranged in the valve body 8, a circle of graphite sealing ring 5 matched with the sealing steel plate 1 is arranged on the valve plate 4, a valve rod 12 is arranged at the upper end of the valve plate 4, the lower end of the valve plate 4 is connected with a driving device 7 through a rotating rod 6, the valve rod 12 is arranged opposite to the connecting rod, and the driving device 7 can adopt any one of the existing pneumatic, electric or manual driving devices 7; the valve rod 12 penetrates through the valve body 8 and extends to the upper end of the valve body 8, the valve rod 12 is connected with the valve body 8 through the basic flange 9, the basic flange 9 is welded on the valve body 8, and an inner hole of the basic flange 9 is a conical hole 15; a sealing flange 13 is arranged on the basic flange 9, and a graphite sealing packing 11 is arranged between the sealing flange 13 and the basic flange 9.
This scheme is used for the pipe-line system of pitch flue gas on, drives sealed steel sheet 1 at 8 internal rotations of valve body through drive arrangement 7, realizes closing and opening of valve body 8, and graphite sealing ring 5 on the valve plate 4 cooperates with sealed steel sheet 1, realizes closing on the 8 latus rectum of valve body. An inner hole of the basic flange 9 is processed into a conical hole 15, the conical hole 15 faces the inner side of the valve body 8, tar in the asphalt smoke is condensed on the valve rod 12 and then can flow into a pipeline along the inclined plane of the conical hole 15, so that the valve rod 12 is not easy to block, and the valve rod 12 is prevented from being incapable of rotating. The graphite sealing packing 11 can effectively prevent asphalt-free smoke tar from leaking from all positions of the valve rod 12.
A movable flange 14 is arranged on the basic flange 9, the graphite sealing packing 11 is arranged between the movable flange 14 and the valve rod 12, the sealing flange 13 is arranged on the graphite sealing packing 11, and the sealing flange 13 is fixedly connected with the movable flange 14. The movable flange 14 is fixed on the base flange 9 through bolts, the sealing flange 13 is fixed on the base flange 9 through bolts, and an O-shaped sealing ring 10 is arranged between the movable flange 14 and the base flange 9.
The movable flange 14 is matched with the basic flange 9 and sealed by the O-shaped sealing ring 10, the movable flange 14 is mainly used for positioning the position of the valve rod 12, the graphite sealing packing 11 is filled inside the movable flange, and the sealing packing is tightly pressed by the sealing gland, so that no asphalt smoke tar leakage at each position of the valve rod 12 is ensured.
The movable flange 14 is connected with the basic flange 9 through bolts, when the butterfly valve is blocked and the like, the movable flange 14 can be directly disassembled for processing, the whole butterfly valve does not need to be disassembled for post processing, the overhauling difficulty is reduced, and the overhauling time is saved.
Be provided with reinforcing plate 3 and strengthening rib 2 on the valve plate 4, valve plate 4 can adopt thinner steel sheet preparation, welds strengthening rib 2 and reinforcing plate 3 on the valve plate 4, can alleviate butterfly valve weight when guaranteeing 4 intensity of valve plate like this. The end part of the valve rod 12 is a square head, and when the valve plate 4 cannot be opened and closed, the square head can be manually rotated by a tool temporarily to open or close the valve.
Claims (6)
1. The ventilation butterfly valve for the asphalt smoke is characterized by comprising a valve body (8), wherein a circle of sealing steel plate (1) is arranged on the inner wall of the valve body (8), an annular valve plate (4) is arranged in the valve body (8), a circle of graphite sealing ring (5) matched with the sealing steel plate (1) is arranged on the valve plate (4), a valve rod (12) is arranged at the upper end of the valve plate (4), and the lower end of the valve plate (4) is connected with a driving device (7) through a rotating rod (6); the valve rod (12) penetrates through the valve body (8) and extends to the upper end of the valve body (8), the valve rod (12) is connected with the valve body (8) through a basic flange (9), and an inner hole of the basic flange (9) is a conical hole (15); be provided with sealing flange (13) on basic flange (9), be provided with graphite sealing packing (11) between sealing flange (13) and basic flange (9).
2. The ventilation butterfly valve for asphalt smoke according to claim 1, wherein a movable flange (14) is arranged on the base flange (9), the graphite sealing packing (11) is arranged between the movable flange (14) and the valve rod (12), the sealing flange (13) is arranged on the graphite sealing packing (11), and the sealing flange (13) is fixedly connected with the movable flange (14).
3. The ventilation butterfly valve for asphalt fumes according to claim 2, characterized in that the movable flange (14) is fixed to the base flange (9) by means of bolts, and the sealing flange (13) is fixed to the movable flange (14) by means of bolts.
4. The ventilation butterfly valve for asphalt fumes according to claim 2, characterized in that an O-ring (10) is arranged between the movable flange (14) and the base flange (9).
5. The ventilation butterfly valve for asphalt fumes according to claim 1, characterized in that the valve plate (4) is provided with a reinforcing plate (3) and a reinforcing rib (2).
6. The ventilation butterfly valve for asphalt fumes of claim 1, characterized in that the end of the valve stem (12) is a square head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021833845.6U CN213176838U (en) | 2020-08-27 | 2020-08-27 | A ventilation butterfly valve for pitch flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021833845.6U CN213176838U (en) | 2020-08-27 | 2020-08-27 | A ventilation butterfly valve for pitch flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176838U true CN213176838U (en) | 2021-05-11 |
Family
ID=75769481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021833845.6U Active CN213176838U (en) | 2020-08-27 | 2020-08-27 | A ventilation butterfly valve for pitch flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176838U (en) |
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2020
- 2020-08-27 CN CN202021833845.6U patent/CN213176838U/en active Active
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