CN201281135Y - Circular PVC overturn disc valve for producing titanium dioxide - Google Patents
Circular PVC overturn disc valve for producing titanium dioxide Download PDFInfo
- Publication number
- CN201281135Y CN201281135Y CNU2008203026817U CN200820302681U CN201281135Y CN 201281135 Y CN201281135 Y CN 201281135Y CN U2008203026817 U CNU2008203026817 U CN U2008203026817U CN 200820302681 U CN200820302681 U CN 200820302681U CN 201281135 Y CN201281135 Y CN 201281135Y
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- Prior art keywords
- valve
- valve rod
- pvc
- rod
- sliding bearing
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- Expired - Fee Related
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Abstract
The utility model discloses a butterfly valve and in particular relates to the butterfly valve which is suitable for a tail gas acid-hydrolyzing and calcining system in the titanium pigment production industry. The provided round PVC reprinted-type butterfly valve which is used for titanium pigment production and can reach the sealing requirement comprises a valve body, a valve plate, a valve rod and a valve seat block which are made of PVC materials. A sliding bearing seat is adopted between a sliding bearing and a sealing block on the valve body, and the sliding bearing is arranged at the upper part of the valve rod; and the sliding bearing which is arranged at the lower part of the valve rod is sealed with the sliding bearing seat on the valve in a suspension-type friction manner. The structure of the butterfly valve is simple, and the inspection/reparation period of the butterfly valve used for the tail gas acid-hydrolyzing and calcining system in the titanium pigment production industry can be prolonged to 2 years or so, thus saving the production cost and improving the production efficiency of equipment.
Description
Technical field
The utility model relates to a kind of dish valve, especially is suitable for the dish valve of titanium white production industry acidolysis tail gas and calcining exhaust system.
Background technique
Because the working condition of the exhaust treatment system of the production of titanium dioxide industry is in the positive and negative pressure 60000-70000Pa scope, serviceability temperature≤70 ℃, working medium is acid, the alkali gas of variable concentrations, therefore valve body, the line with rubber to dish valve in the exhaust treatment system has corrosive action, the maintenance, replacement cycle that cause the dish valve are generally at 3～5 months, the production run cost is higher, influences normal production and operation.
PVC (PP) is widely used in industries such as chemical industry, building at present, has corrosive advantage, but because PVC is in light weight, intensity is little than metal, therefore PVC is used for the problem that the dish valve also exists sealing, intensity aspect.
The model utility content
Technical problem to be solved in the utility model provides a kind of PVC reprint formula dish valve that can reach seal request that is used for titanium white production.
The technological scheme that its technical problem that solves the utility model adopts is: the circular PVC reprint formula dish valve that is used for titanium white production, comprise the valve body, valve plate, valve rod, the valve seat piece that adopt the PVC material to make, be installed between the sliding bearing on top of valve rod and the sealing block on the valve body and adopt plain bearing housing; Be installed in and adopt suspension type friction sealed between the sliding bearing of stem lower portion and the plain bearing housing on the valve.
As improvement of the present utility model, valve rod is a hollow structure, in the centre of above-mentioned valve rod the reinforcement valve rod is installed.
As further improvement of the utility model, strengthen valve rod and use the acid resistant alkali resin bonding in valve rod.
As another kind of improvement the of the present utility model, between valve plate and valve rod, adopt plastic welding technology to be welded.
As further improvement of the utility model, adopt the plastic welding technologies to be welded with gusset (10) at two end faces of valve plate (10) and valve rod (8).
Dish valve arrangement of the present utility model is simple, can with at present in the titanium white production industry butterfly valve repair cycle of acidolysis tail gas and calcining exhaust system bring up to about 2 years, saved cost of production, improved efficiency of equipment.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view among Fig. 1.
Description of reference numerals among the figure: 1-limiting board, 2-handwheel, 3-sealing block, 4-sliding bearing, 5-O RunddichtringO, 6-pin, 7-valve seat piece, 8-valve rod, 9-gusset, 10-valve plate, 11-reinforcement valve rod, 12-valve body, 13-flange, 14-plain bearing housing.
Embodiment
As shown in Figure 1, circular reprint formula dish valve comprises valve body 12, valve plate 10, valve rod 8, valve seat piece 7, and valve plate 10 is installed on the valve rod 8, and the rotation of valve rod 8 drives the unlatching and the control flow rate size of valve plate 10.Valve rod 8 shown in Figure 1 rotates by handwheel 2 row, limiting board 1 is installed between handwheel 2 and the valve seat piece 7 carries out spacing control.Butterfly valve is connected with system pipeline by flange 13.
For the anticorrosive problem in the resolution system, the parts that contact with etchant gas adopt erosion-resisting PVC material to make as valve body 12, valve plate 10, valve rod 8.Simultaneously in order to guarantee the sealability of butterfly valve, be installed between the sliding bearing 4 on top of valve rod 8 and the sealing block 3 on the valve body 12 and adopt the plain bearing housing of realizing the gravity sealing, the friction sealed plain bearing housing of employing suspension type between the sliding bearing that is installed in valve rod 8 bottoms and the plain bearing housing 14 on the valve body 12.
At the shortcoming of the PVC strength of materials less than steel, in order to improve valve rod 8 and valve plate 10, and integral intensity, adopt following structure:
Valve rod 8 is set to hollow structure, is equipped with in the centre of above-mentioned valve rod 8 and strengthens valve rod 11, strengthen valve rod 11 and adopt intensity to be higher than the material of PVC, make as steel.Strengthen valve rod 11 usefulness acid resistant alkali resin bondings in valve rod 8, both guaranteed connection each other, and structure, easy for installation.In order to strengthen valve rod 8 further and to strengthen being connected between the valve rod 11, as shown in Figure 2, to locate at valve rod 8 and reinforcement valve rod 11 usefulness pins 6, the column pin hole of pin 6 terminations is resin-sealed with acid resistant alkali.Because PVC can not adopt the mode of foundry goods processing to make, the therefore employing plastic welding technology one that is welded between valve plate 10 and valve rod 8, thus reduced manufacture cost.In addition as Fig. 1 Fig. 2 and shown in, adopt the plastic welding technologies to be welded with gusset 9 at two end faces of valve plate 10 and valve rod 8, strengthened the intensity of valve plate 10 bodies, also strengthened the join strength of valve plate 10 with valve rod 8.Consider from structure, make pin 6 pass gusset 9, valve rod 8 simultaneously, strengthen valve rod 11.
Sealing surface between valve plate 10 and valve seat piece 7 is equipped with RUBBER O RunddichtringO 5, owing to adopt valve rod 8 to adopt plain bearing housing, therefore under the action of gravity of valve plate 10, sealing effect is better.
Claims (7)
- [claim 1] is used for the circular PVC reprint formula dish valve of titanium white production, comprises valve body, valve plate, valve rod, valve seat piece, it is characterized in that: valve body (12), valve plate (10), valve rod (8) adopt the PVC material; Be installed between the sliding bearing (4) on top of valve rod (8) and the sealing block (3) on the valve body (12) and adopt plain bearing housing; Be installed in and adopt suspension type friction sealed between the sliding bearing of valve rod (8) bottom and the plain bearing housing (14) on the valve (12).
- [claim 2] circular PVC reprint formula dish valve that is used for titanium white production as claimed in claim 1, it is characterized in that: valve rod (8) is a hollow structure, is equipped with in the centre of above-mentioned valve rod (8) to strengthen valve rod (11).
- [claim 3] circular PVC reprint formula dish valve that is used for titanium white production as claimed in claim 2 is characterized in that: strengthen valve rod (11) and use the acid resistant alkali resin bonding in valve rod (8).
- [claim 4] is characterized in that as claim 2 or the 3 described circular PVC reprint formula dish valves that are used for titanium white production: locate with pin (6) at valve rod (8) and reinforcement valve rod (11).
- [claim 5] circular PVC reprint formula dish valve that is used for titanium white production as claimed in claim 1 or 2 is characterized in that: adopt plastic welding technology to be welded between valve plate (10) and valve rod (8).
- [claim 6] circular reprint formula dish valve as claimed in claim 5 is characterized in that: two end faces at valve plate (10) and valve rod (8) adopt the plastic welding technologies to be welded with gusset (10).
- [claim 7] circular PVC reprint formula dish valve that is used for titanium white production as claimed in claim 1, it is characterized in that: the sealing surface between valve plate (10) and valve seat piece (7) is equipped with RUBBER O RunddichtringO (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203026817U CN201281135Y (en) | 2008-11-07 | 2008-11-07 | Circular PVC overturn disc valve for producing titanium dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203026817U CN201281135Y (en) | 2008-11-07 | 2008-11-07 | Circular PVC overturn disc valve for producing titanium dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281135Y true CN201281135Y (en) | 2009-07-29 |
Family
ID=40928010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203026817U Expired - Fee Related CN201281135Y (en) | 2008-11-07 | 2008-11-07 | Circular PVC overturn disc valve for producing titanium dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281135Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402414A (en) * | 2016-12-07 | 2017-02-15 | 无锡优耐特净化装备有限公司 | Manual butterfly valve of center control line |
| CN107555001A (en) * | 2017-09-05 | 2018-01-09 | 保定市新华石化设备制造有限公司 | Inner floating roof annex sealing device |
-
2008
- 2008-11-07 CN CNU2008203026817U patent/CN201281135Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402414A (en) * | 2016-12-07 | 2017-02-15 | 无锡优耐特净化装备有限公司 | Manual butterfly valve of center control line |
| CN107555001A (en) * | 2017-09-05 | 2018-01-09 | 保定市新华石化设备制造有限公司 | Inner floating roof annex sealing device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20091107 |