CN2190720Y - Transformer butterfly valve - Google Patents
Transformer butterfly valve Download PDFInfo
- Publication number
- CN2190720Y CN2190720Y CN 93235337 CN93235337U CN2190720Y CN 2190720 Y CN2190720 Y CN 2190720Y CN 93235337 CN93235337 CN 93235337 CN 93235337 U CN93235337 U CN 93235337U CN 2190720 Y CN2190720 Y CN 2190720Y
- Authority
- CN
- China
- Prior art keywords
- valve
- transformer
- butterfly valve
- valve body
- oil tank
- 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 relates to a transformer butterfly valve which is a device used for opening and closing an oil tank of a transformer. The utility model has the technical proposal that a seal ring made of a soft material is fixedly arranged on a movable door. The outer diameter of the sealing ring is larger than the inner diameter of a valve body. The nterference fit is formed between the movable door fixedly provided with the seal ring and the valve body. The connection between the transformer butterfly valve and an oil tank of the transformer is in a weld structure. The butterfly valve is welded on the oil tank of the transformer. The transformer butterfly valve has the advantages of small size, light weight, convenient installation and maintenance, convenient use, long service life and reliable and stable sealing.
Description
What a kind of transformer butterfly valve of the utility model related to is the unlatching of the oil circuit of oil tank of transformer, a kind of device of closing.
The butterfly valve of domestic production now, have following several problem: first problem is that volume is big, its reason be valve body with oil tank of transformer between be connected and adopt eight bolts to connect, the end size that this valve body is connected with transformer is big, causes the butterfly valve volume big.In addition, owing to adopt eight bolts to be connected with oil tank of transformer, this Placement, fuel tank is difficult to sealing, and the oil in the oil tank of transformer flows out from eight bolts hole, and the joint sealing between oil tank of transformer and the butterfly valve is unreliable.
Second problem is: the sealing of valve body and valve is to lean on the interference fit of valve body and valve to seal, it is the diameter that the internal diameter of valve body is slightly smaller than valve, the diameter of valve utilizes this interference fit to reach the effect of sealing greater than valve block internal diameter, is a kind of interference fit.This sealing means is in the movement process of the opening and closing of valve, and is because valve and valve body all are the rigid materials of confronting the tough with toughnees, not wear-resisting again, friction is big, be easy to wearing and tearing.Open, close after tens times, because wearing and tearing diminish the valve diameter, valve block internal diameter increases, and has become movable the cooperation by interference fit between valve body and the valve, and having produced clearance seal can't guarantee, produces leakage of oil.Butterfly valve does not have the effect of sealing and scraps.The purpose of a kind of transformer butterfly valve of design the utility model, provide a kind of transformer butterfly valve, make butterfly valve volume-diminished 1/3rd, butterfly valve seal is reliable, fuel tank and butterfly valve joint are oil-proof, for dwindling transformer butterfly valve volume, butterfly valve seal is reliable, oil tank of transformer and butterfly valve joint are oil-proof, a kind of transformer butterfly valve of the utility model structurally adopts following technical proposal: one, the valve body of transformer butterfly valve does not connect with adopting bolt being connected of oil tank of transformer, and adopts an end of transformer valve body to be welded on the oil tank of transformer.Valve body and oil tank of transformer joint fuse into an integral body, are welded to connect to have replaced the bolt connection, have not solved the problem that the oil of oil tank of transformer flows out from bolt hole owing to had bolt hole.The sealing of fuel tank and butterfly valve is reliable.Simultaneously, because valve body is welded on the oil tank of transformer, make the butterfly valve volume and weight dwindle 1/3rd nearly.
Two, an O-ring seal is installed on the valve of transformer butterfly valve, is installed the valve of O-ring seal, its diameter is bigger than the internal diameter of butterfly valve body, the valve block internal diameter of butterfly valve is littler than the external diameter of O-ring seal, promptly changing former mechanical interference is the O-ring seal interference fit, and this rubber ring or interference fit are in the movement process of closing, opening at valve, because O-ring seal is a soft material, little with the friction of valve body, not easy to wear, can not produce the gap, sealing is reliable, has overcome the leakage of oil problem.And increase the working life of butterfly valve.
The advantage of a kind of transformer butterfly valve of the utility model is that volume is little, and is in light weight, and installation, maintenance, easy to use, sealability are stable, reliable, are a kind of transformer butterfly valves of miniaturization.Further elaborate below in conjunction with a kind of transformer butterfly valve of 1 pair of the utility model of accompanying drawing:
Accompanying drawing 1 is a kind of sectional view of transformer butterfly valve.
(1) valve for the band O-ring seal is called for short valve (1) again; (2) be called for short O-ring seal (2) again for the O-ring seal on the valve; (3) be rotating shaft; (4) be valve bonnet; (5) be housing pin; (6) boss O-ring seal; (7) be valve body; (8) be bolt; (9) be pad.Linkage structure between each other parts of butterfly valve is such: valve body (7) right-hand member has the flange plate in four holes, connects (relevant pipeline not being drawn among this figure) by four holes on the flange plate with relevant pipeline with bolt.
Valve body (7) left end A face is welded on the oil tank of transformer, replace existing valve body and oil tank of transformer with eight bolted old schemes, cancel the upward flange plate of left end of valve body (7) like this, made the volume and weight of butterfly valve reduce 1/3rd, also overcome fuel tank leakage of oil problem.
Valve body (7) lower end has one not by the boss hole of valve body (7) wall, and this boss hole is used for laying rotating shaft (3).Valve body (7) top has an all-pass to cross the boss hole of valve body (7) wall, in this boss hole internal thread is arranged, and the collet threaded (5) that is tightened on the boss hole internal thread is pressed boss O-ring seal (6), has guaranteed that the oil in the butterfly valve does not flow out in boss hole.
More solid on garden shape valve (1) than O-ring seal (2) peace that valve body (7) internal diameter is big slightly, the valve (1) of band O-ring seal forms interference fit with the internal diameter of valve body (7), O-ring seal (2) is a soft material, butterfly valve is in the process of cutting out, opening, valve body (7) is not the friction of confronting the tough with toughnees with valve (1), so wearing and tearing are little, valve (1) can not cause the gap because of very stiff and demanding friction with valve body (7), and therefore assurance butterfly valve that can be permanent is oil-proof.
Band O-ring seal valve (1) is fixed in the rotating shaft (3) by screw (8).
Have the upper end that hexagon nut valve bonnet (4) is screwed in housing pin (5), with the working position of protection rotating shaft (3) and the rotation of rotating shaft (3).
The working principle of butterfly valve is such: at first describe in detail and close closed procedure: the drawn residing relative position of each parts is the closed condition of butterfly valve on the accompanying drawing 1.Be interference fit with valve body (7) promptly with the valve (1) of O-ring seal, O-ring seal (2) tightly form garden shape one all tight interference fit with valve body (7) internal diameter.Reached the sealing of valve body (7) with valve (1).As shown in Figure 1, the oil on valve (1) left side can't be from flowing out between valve body (7) and the seal ring (2).
The opening process of butterfly valve is such: take off cover valve (4), with spanner rotating shaft (3), the valve (1) of band O-ring seal is followed rotation, if rotating shaft (3) is the words of rotating 90 degree in off position down, the valve (1) of band O-ring seal is a standard-sized sheet, and the oil of oil tank of transformer can pass through from butterfly valve.Screw on and cover valve (4).Butterfly valve is in opening state.If will close butterfly valve, under opening state, return 90 degree angles and be closed condition.
A kind of transformer butterfly valve of the utility model tool is in light weight, volume is little, and sealing is reliable, and the life-span is long, has produced many, is subjected to user's favorable comment.
Claims (2)
1, a kind of transformer butterfly valve, form by valve (1), O-ring seal (2), (6), rotating shaft (3), valve bonnet (4), housing pin (5), valve body (7), bolt (8), pad (9), the valve (1) that it is characterized in that the transformer butterfly valve is gone up the peace seal ring (2) of a soft material admittedly, be installed in its diameter of seal ring (2) on the valve (1) greater than the internal diameter of valve body (7), the valve (1) that O-ring seal is installed forms interference fit with valve body (7).
2, a kind of transformer butterfly valve according to claim 1 is characterized in that an end of the valve body (7) of butterfly valve manufactures the end face of being convenient to weld, and is welded on the oil tank of transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93235337 CN2190720Y (en) | 1993-12-30 | 1993-12-30 | Transformer butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93235337 CN2190720Y (en) | 1993-12-30 | 1993-12-30 | Transformer butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2190720Y true CN2190720Y (en) | 1995-03-01 |
Family
ID=33810790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93235337 Expired - Fee Related CN2190720Y (en) | 1993-12-30 | 1993-12-30 | Transformer butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2190720Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424389C (en) * | 2006-09-26 | 2008-10-08 | 辽宁能发伟业能源科技有限公司 | Processing technology for interference connection between butterfly gate gasket and valve body |
| CN103352987A (en) * | 2013-08-02 | 2013-10-16 | 衡阳湘阳特电力工程修试有限公司 | Welded lining butterfly valve |
| CN110695560A (en) * | 2019-10-23 | 2020-01-17 | 山东电力设备有限公司 | Method for controlling welding deformation of threaded hole |
-
1993
- 1993-12-30 CN CN 93235337 patent/CN2190720Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424389C (en) * | 2006-09-26 | 2008-10-08 | 辽宁能发伟业能源科技有限公司 | Processing technology for interference connection between butterfly gate gasket and valve body |
| CN103352987A (en) * | 2013-08-02 | 2013-10-16 | 衡阳湘阳特电力工程修试有限公司 | Welded lining butterfly valve |
| CN110695560A (en) * | 2019-10-23 | 2020-01-17 | 山东电力设备有限公司 | Method for controlling welding deformation of threaded hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |