CN2804528Y - Valve controller - Google Patents
Valve controller Download PDFInfo
- Publication number
- CN2804528Y CN2804528Y CN 200420078960 CN200420078960U CN2804528Y CN 2804528 Y CN2804528 Y CN 2804528Y CN 200420078960 CN200420078960 CN 200420078960 CN 200420078960 U CN200420078960 U CN 200420078960U CN 2804528 Y CN2804528 Y CN 2804528Y
- Authority
- CN
- China
- Prior art keywords
- spare
- controller part
- case lid
- casing
- proof
- 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 valve controller. The side surface (5) of a box body component (3) of a controller component (1) is cylindrical, a bulged circular rabbet ring (8) is arranged at a surface on a box cover component (6), which is combined with the box body component (3), and the bulged circular rabbet ring (8) is in a transition fit with the inner side of an orifice of the box body component (3). With the method, an integral process structure is used, and the fit requirements of flame-proof combined surfaces and the requirements of flame-proof gaps are met. The deformation of the controller component is prevented, and the waterproof performance and the flame-proof performance of the valve controller are improved.
Description
Technical field
The utility model relates to a kind of valve positioner, specifically, relates to its controller part.
Background technique
The flame-proof valve door controller is used for the flame-proof valve valve electric device, to the opening and closing realization control of valve, both can control separately at the scene, also can carry out remote centralized control.General valve positioner, the mould-forming method of its controller part casing spare and case lid spare adopt the steel plate welding, carry out the cutting of junction plane, installation surface then.Because the restriction of welding procedure, the weld joint processing difficulties makes explosion-proof junction plane processing be difficult to reach requirement, and the internal control element is difficult to satisfy the requirement in flame proof gap after installing.Behind the component forming, there is internal stress, causes the distortion of controller part, make that explosion-proof junction plane is ineffective, and water-proof performance, explosion insulation performance are descended.So, in industrial departments such as petrochemical industry, water power, metallurgy, nuclear energy, requiring in the higher occasion of waterproof, requirement of explosion proof, the controller of above-described electric device for valve obviously can not satisfy the requirement of Safety performance.
The model utility content
Problem to be solved in the utility model provides a kind of valve positioner, its objective is the waterproof, the explosion insulation performance that improve valve.
To achieve these goals, valve positioner provided by the utility model comprises controller part, anti-explosion terminal box, wherein controller part comprises casing spare and case lid spare, described casing spare side is a cylindrical shape, the one side that combines with casing spare on the case lid spare is established protruding circular seam circle, with the inboard, aperture of casing spare be transition fit.
Casing spare is dismountable close-coupled with case lid spare in the end face direction.
The base plate of the casing spare on the described controller part and side are the integral body of a no junction plane, the case lid spare on the described controller part, and cover plate wherein and seam circle are the integral body of a no junction plane.
Adopt said method, utilization integrated artistic structure has satisfied the cooperation requirement of flame proof junction plane and the requirement in flame proof gap, prevents the distortion of controller part, has improved the water-proof performance and the explosion insulation performance of valve positioner.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the valve positioner structural representation.
Fig. 2 is a valve positioner modular construction schematic representation
Number in the figure is: 1, controller part, and 2, anti-explosion terminal box, 3, casing spare, 4, base plate, 5, the side, 6, case lid spare, 7 cover plates,, 8, the seam circle, 9, the flame proof junction plane.
Embodiment
Shown in Fig. 1 valve positioner structural representation and Fig. 2 controller part structural representation, valve positioner described in the utility model comprises controller part 1, anti-explosion terminal box 2.
The side 5 of the casing spare 3 of controller part 1 is a cylindrical shape, the one side that combines with casing spare 3 on the case lid spare 6 is established protruding circular seam circle 8, with the inboard, aperture of casing spare 3 be transition fit, played sealing, waterproof, prevented that harmful gas from entering in the casing and the effect of electrical spark influence.Casing spare 3 is dismountable close-coupled with case lid spare 6 in the end face direction, advances an effect of strengthening sealing.
The base plate 4 of the casing spare 3 on the described controller part 1 and side 5 are the integral body of a no junction plane, case lid spare 6 on the described controller part 1, cover plate 7 wherein is the integral body of a no junction plane with seam circle 8, and promptly the base plate 4 of the casing spare 3 on the controller part 1 and side 5 are that a casting is whole; Case lid spare 6 on the controller part 1, its cover plate 7 is that a casting is whole with seam circle 8.Foundry goods all can adopt grey cast iron HT200, its material possesses good casting technique performance, mechanical mechanics property and machinability, because the complex structure of controller part die cavity, adopt foundry goods to avoid the narrow limitation of welding procedure, guarantee the quality of processing and the minimum effectively contact length of the flame proof junction plane 9 after its processing, the cooperation requirement of flame proof junction plane 9 and the requirement in flame proof gap have been satisfied, prevent the distortion of controller part 1, in addition, also can be connected with anti-explosion terminal box 2 better, and anti-explosion terminal box 2 adopts better seal element of sealability and insulating material, has improved the water-proof performance and the explosion insulation performance of valve positioner.
Claims (3)
1, a kind of valve positioner, comprise controller part (1), anti-explosion terminal box (2), wherein controller part (1) comprises casing spare (3) and case lid spare (6), it is characterized in that: the side (5) of described casing spare (3) is cylindrical shape, case lid spare (6) is gone up the one side combine with casing spare (3) and is established protruding circular seam circle (8), with the inboard, aperture of casing spare (3) be transition fit.
2, according to the described valve positioner of claim 1, it is characterized in that: casing spare (3) is dismountable close-coupled with case lid spare (6) in the end face direction.
3, according to the described valve positioner of claim 1, it is characterized in that: base plate (4) and side (5) of the casing spare (3) on the described controller part (1) are the integral body of a no junction plane, case lid spare (6) on the described controller part (1), cover plate wherein (7) is the integral body of a no junction plane with seam circle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420078960 CN2804528Y (en) | 2004-08-23 | 2004-08-23 | Valve controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420078960 CN2804528Y (en) | 2004-08-23 | 2004-08-23 | Valve controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2804528Y true CN2804528Y (en) | 2006-08-09 |
Family
ID=36909820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420078960 Expired - Fee Related CN2804528Y (en) | 2004-08-23 | 2004-08-23 | Valve controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2804528Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170814A (en) * | 2013-03-06 | 2013-06-26 | 西安理工大学 | Processing method of anti-blasting device sealing and combining surface |
| CN108700222A (en) * | 2015-12-10 | 2018-10-23 | 应用材料公司 | Closure or locking device for vacuum chamber |
-
2004
- 2004-08-23 CN CN 200420078960 patent/CN2804528Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170814A (en) * | 2013-03-06 | 2013-06-26 | 西安理工大学 | Processing method of anti-blasting device sealing and combining surface |
| CN103170814B (en) * | 2013-03-06 | 2015-04-22 | 西安理工大学 | Processing method of anti-blasting device sealing and combining surface |
| CN108700222A (en) * | 2015-12-10 | 2018-10-23 | 应用材料公司 | Closure or locking device for vacuum chamber |
| CN108700222B (en) * | 2015-12-10 | 2021-05-11 | 应用材料公司 | Closing or locking device for a vacuum chamber |
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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: 20060809 |