CN204366847U - Flange fastening device in a kind of valve - Google Patents
Flange fastening device in a kind of valve Download PDFInfo
- Publication number
- CN204366847U CN204366847U CN201420824273.3U CN201420824273U CN204366847U CN 204366847 U CN204366847 U CN 204366847U CN 201420824273 U CN201420824273 U CN 201420824273U CN 204366847 U CN204366847 U CN 204366847U
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- China
- Prior art keywords
- valve
- tightening tool
- described valve
- fixed connecting
- fastening device
- 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.)
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Abstract
The utility model relates to flange fastening device in a kind of valve, comprises fixed connecting plate and valve tightening tool, and described fixed connecting plate is coated on outside described valve; Described valve tightening tool is sleeved on the york piece of described valve, and described valve tightening tool is connected with spanner.The utility model solves prior art can cause very large mechanical wounding to equipment and system pipeline itself; Avoid existing knock the screw-down torque that fastening method applies cannot quantified controlling, be difficult to the defect of the effective sealing ensureing flange in valve.
Description
Technical field
The utility model relates to field of pressurized water reactor nuclear, is specifically related to flange fastening device in a kind of valve.
Background technology
The way generally adopted for flange in the manual shutoff valve be threaded at present directly knocks valve rack to realize by hammer.This kind of method exists following not enough: 1) directly knock valve rack, and it is only one-sided and knocks, and discontinuity equalization, easily causes the mechanical wounding of valve body; 2) directly knock valve, power and the moment values of its applying are uncontrollable, require larger then possibly cannot reaching for sealed force moment value, are therefore difficult to the effective sealing ensureing flange in valve; 3) directly valve is knocked, bending equivalent damage can be caused to system pipeline, especially may cause the defects such as the cracking at valve body and pipe welding seam place.
Utility model content
The technical problem that will solve of the present utility model is to provide a kind of prior art that solves can cause very large mechanical wounding to equipment and system pipeline itself; Simultaneously this knock screw-down torque that fastening method applies cannot quantified controlling, be difficult to flange fastening device in the valve of the effective sealing ensureing flange in valve.
In order to solve the problems of the technologies described above, the technical solution of the utility model is, flange fastening device in a kind of valve comprises fixed connecting plate and valve tightening tool, and described fixed connecting plate is coated on outside described valve; Described valve tightening tool is sleeved on the york piece of described valve, and described valve tightening tool is connected with spanner.
Two pieces of described fixed connecting plates are positioned opposite to each other in valve body both sides, and are fixed to one another by bolt; The inner surface contour that described two pieces of fixed connecting plates are formed is consistent with described valve outer surface profile.
Described valve tightening tool entirety is in cylindric, and its one end has the rectangular channel of radially break-through and extends vertically and the cylinder groove of not break-through; Described cylinder groove axis and this valve tightening tool axis collinear; The other end of described valve tightening tool has the square groove axially checked and accepted along it, described square groove axis and this valve tightening tool axis collinear, and with described cylinder groove UNICOM; Described valve tightening tool is enclosed within by its cylinder groove on the york piece of described valve; Described valve tightening tool is connected with described spanner by described square groove.
The beneficial effects of the utility model:
The utility model can well improve flange seal in valve, avoids the mechanical damage of valve body and system pipeline simultaneously.
Accompanying drawing explanation
Fig. 1 is the fixed connecting plate schematic diagram of flange fastening device in a kind of valve of the utility model;
Fig. 2 is the fixed connecting plate scheme of installation of flange fastening device in a kind of valve of the utility model;
Fig. 3 be in Fig. 2 A to schematic diagram;
Fig. 4 is the valve tightening tool schematic diagram of flange fastening device in a kind of valve of the utility model;
Fig. 5 is the axial sectional view of valve tightening tool of flange fastening device in a kind of valve of the utility model.
In figure, 1-fixed connecting plate; 101-bolt; 2-valve tightening tool; 201-rectangular channel; 202-cylinder groove; 203-square groove; 3-valve body.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described further.
Flange fastening device in a kind of valve, comprise fixed connecting plate 1 and valve tightening tool 2, described fixed connecting plate 1 is coated on outside described valve 3; Described valve tightening tool 2 is sleeved on the york piece of described valve, and described valve tightening tool 2 is connected with spanner.
Two pieces of described fixed connecting plates 1 are positioned opposite to each other in valve body 3 both sides, and are fixed to one another by bolt 101; The inner surface contour that described two pieces of fixed connecting plates 1 are formed is consistent with described valve body 3 outer surface profile.
Described valve tightening tool 2 entirety is in cylindric, and its one end has the rectangular channel 201 of radially break-through and extends vertically and the cylinder groove 202 of not break-through; Described cylinder groove 202 axis and this valve tightening tool 2 axis collinear; The other end of described valve tightening tool 2 has the square groove 203 axially checked and accepted along it, described square groove 203 axis and this valve tightening tool 2 axis collinear, and with described cylinder groove 202 UNICOM.
Described valve tightening tool 2 is enclosed within the york piece of described valve by its cylinder groove 202.
Described spanner is hydraulic spanner, and described valve tightening tool 2 is connected with described hydraulic spanner by described square groove 203.
Give described valve tightening tool 2 certain moment values by hydraulic spanner, thus realize the fastening of flange in valve; Afterwards, the york piece of valve fastened tools 2 from valve is extracted out, unclamps the bolt 101 of two pieces of fixed connecting plates 1, removed.
Claims (3)
1. a flange fastening device in valve, is characterized in that: comprise fixed connecting plate and valve tightening tool, and described fixed connecting plate is coated on outside described valve; Described valve tightening tool is sleeved on the york piece of described valve, and described valve tightening tool is connected with spanner.
2. according to flange fastening device in valve according to claim 1, it is characterized in that: two pieces of described fixed connecting plates are positioned opposite to each other in valve body both sides, and are fixed to one another by bolt; The inner surface contour that described two pieces of fixed connecting plates are formed is consistent with described valve outer surface profile.
3. according to flange fastening device in valve according to claim 1, it is characterized in that: described valve tightening tool entirety is in cylindric, and its one end has the rectangular channel of radially break-through and extends vertically and the cylinder groove of not break-through; Described cylinder groove axis and this valve tightening tool axis collinear; The other end of described valve tightening tool has the square groove axially checked and accepted along it, described square groove axis and this valve tightening tool axis collinear, and with described cylinder groove UNICOM; Described valve tightening tool is enclosed within by its cylinder groove on the york piece of described valve; Described valve tightening tool is connected with described spanner by described square groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420824273.3U CN204366847U (en) | 2014-12-23 | 2014-12-23 | Flange fastening device in a kind of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420824273.3U CN204366847U (en) | 2014-12-23 | 2014-12-23 | Flange fastening device in a kind of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204366847U true CN204366847U (en) | 2015-06-03 |
Family
ID=53323095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420824273.3U Active CN204366847U (en) | 2014-12-23 | 2014-12-23 | Flange fastening device in a kind of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204366847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458160A (en) * | 2017-12-25 | 2018-08-28 | 福建福清核电有限公司 | One kind being used for the fixed tooling of diaphragm type control valve opening |
-
2014
- 2014-12-23 CN CN201420824273.3U patent/CN204366847U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458160A (en) * | 2017-12-25 | 2018-08-28 | 福建福清核电有限公司 | One kind being used for the fixed tooling of diaphragm type control valve opening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |