CN201294136Y - Segment type case of flame-proof type dry transformer for mining - Google Patents
Segment type case of flame-proof type dry transformer for mining Download PDFInfo
- Publication number
- CN201294136Y CN201294136Y CNU2008201057721U CN200820105772U CN201294136Y CN 201294136 Y CN201294136 Y CN 201294136Y CN U2008201057721 U CNU2008201057721 U CN U2008201057721U CN 200820105772 U CN200820105772 U CN 200820105772U CN 201294136 Y CN201294136 Y CN 201294136Y
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- flame
- proof
- mining
- welded
- transformer
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Abstract
A mine flame-proof type dry-type transformer sectional shell comprises a corrugated tube housing, wherein flame-proof flanges are arranged on the two ends of the corrugated tube housing, and the corrugated tube housing is welded by 5-9 sections of corrugated short tubes, and the flame-proof flanges are welded on corrugated short tubes on the two ends. The mine flame-proof type dry-type transformer sectional shell can finish the complete processing operations through adopting common hydraulic equipment and common vertical machines as the integral corrugated tube shell structure in the prior art is changed into a sectional shell structure, and the integral shaping and integral processing technological process is changed into the sectional shaping and individual processing of the flame-proof surfaces of the end flanges, and increases the processing efficiency and greatly reduces the cost.
Description
Technical field
The utility model relates to a kind of transformer case, particularly a kind of flameproof dry-type transformer shell that is applicable to that the colliery is used.
Background technology
Mine Explosion-proof Dry-type Transformer Enclosure is a kind of special equipment, this transformer housing design of domestic prior art and processing technology are with reference to external process technology norm-setting, its main technique step is according to case design length, choose the sheet material of sufficient length, sheet material is welded into a cylinder, by high-pressure molding is the bellows housing, at housing two ends welded flange.Carry out annealing in process then and process the flange explosion suppresion surface.As Chinese patent 200520090798 disclosed " Mine Explosion-proof Dry-type Transformer Enclosure "; Chinese patent 942305442 disclosed " a kind of Mine Explosion-proof Dry-type Transformer Enclosure "; Chinese patent 2005201396318 disclosed " Mine Explosion-proof Dry-type Transformer Enclosure "; 2006200781469 disclosed " Mine Explosion-proof Dry-type Transformer Enclosures " all are to adopt above-mentioned process to process.Because the mining transformer body volume is bigger, in order to guarantee heat radiation, its enclosure volume is also relatively large, usually at 1.5-3 rice even bigger, according to traditional manufacture method, elder generation's global formation is processed the explosion suppresion surface of end flanges after welding ends flange and the annealing in process then again, because transformer case is bulky, when shell global formation and processing end flanges explosion suppresion surface, must adopt large-sized processing equipment, will use super-huge hydraulic forming machine during as the moulding of bellows housing, the explosion suppresion surface processing of end flanges then must be used the large-size horizontal lathe.And the direct result that adopts this main equipment is to have increased equipment investment and energy resource consumption, must improve production cost.
Summary of the invention
The utility model has designed a kind of segment type case of flame-proof type dry transformer for mining at the deficiency that above-mentioned prior art exists, and has solved the problem that adopts conventional equipment machining large dry-type transformer housing.
A kind of segment type case of flame-proof type dry transformer for mining of the present utility model, comprise a bellows housing, at bellows housing two ends the flame proof flange is arranged, it is characterized in that described bellows housing is that the flame proof flange is welded on two end corrugation short tubes by 5-9 joint ripple short tube welding fabrication.
Segment type case of flame-proof type dry transformer for mining of the present utility model is owing to the whole bellows shell mechanism with prior art changes the segment type shell mechanism into; With global formation and the integral processing process changes sectional forming into and the end flanges explosion suppresion surface is processed separately, then with the process of several ripple short tube welding fabrications, make process equipment simplify, adopt common hydraulic test and common vertical machine can finish whole processing operations, and working (machining) efficiency improves, and cost reduces greatly.
Description of drawings
Fig. 1 is the segment type case of flame-proof type dry transformer for mining structural representation
Fig. 2 is that the A of Fig. 1 is to view
1-flame proof flange 2-ripple short tube 4-explosion suppresion surface among the figure
Embodiment
With reference to accompanying drawing, segment type case of flame-proof type dry transformer for mining of the present utility model is welded by 5 to 9 joint ripple short tubes 2, is welded with flame proof flange 1 on the ripple short tube at described shell two ends.
The manufacture craft process of segment type case of flame-proof type dry transformer for mining of the present utility model is, total length according to transformer case, it is designed to several merogenesis, selects the sheet material that adheres to specification for use and it is rolled to be welded into cylindric blank, this cylindric charge length is 30-70cm.The cylindric blank that welding is good is put into the bellow forming tool that places on the hydraulic press, exerted pressure by hydraulic press in two ends at cylindric blank, pressure is the 400-600 ton, the inside of cylindric blank then applies the hydraulic pressure of 3-4Mp, by pressure forming, cylindric blank is made the long ripple short tube 2 of 20-40cm, and a common transformer housing approximately needs 5-9 to prop up the ripple short tube.Get the ripple short tube of two formings arbitrarily, respectively weld a flame proof flange 1 respectively thereon, ripple short tube and all the other ripple short tubes of above-mentioned welding flame proof flange carried out annealing in process.The ripple short tube that is welded with the flame proof flange after the annealing in process is carried out fine finishining and makes bolt connecting hole explosion suppresion surface 4 through common vertical machine, then the ripple short tube that processes and other ripple short tube are welded successively, make a transformer housing.
The embodiment choosing meets the sheet material of design standard, reel and welding are grown up 50 centimetres, 7 of the cylinders that diameter is 90 centimetres, above-mentioned cylinder is put into shaped by fluid pressure mould and moulding on hydraulic forming machine respectively, 600 tons of briquetting pressures, inside applies hydraulic pressure 4Mp, makes 35 centimetres of ripple short tube length, 90 centimetres of diameters.Optional two ripple short tubes 2, end at these two ripple short tubes welds a flame proof flange 1 respectively, the ripple short tube and all the other the ripple short tubes that have welded the flame proof flange are carried out annealing in process, carry out fine finishining and make bolt connecting hole with the explosion suppresion surface 4 of common vertical lathe then the flame proof flange.Five ripple short tubes that do not weld the flame proof flange are welded successively, and the last ripple short tube that respectively welds a band flame proof flange at two ends is made segment type case of flame-proof type dry transformer for mining.2.45 meters of shell length, 90 centimetres of diameters.Merogenesis amounts to seven.
Claims (2)
1, a kind of segment type case of flame-proof type dry transformer for mining, comprise a bellows housing, at bellows housing two ends flame proof flange (1) is arranged, it is characterized in that described bellows housing by 5-9 joint ripple short tube (2) welding fabrication, flame proof flange (1) is welded on two end corrugation short tubes (2).
2,, it is characterized in that described bellows housing is welded by 7 joints or 8 joint ripple short tubes according to a kind of segment type case of flame-proof type dry transformer for mining of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201057721U CN201294136Y (en) | 2008-08-28 | 2008-08-28 | Segment type case of flame-proof type dry transformer for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201057721U CN201294136Y (en) | 2008-08-28 | 2008-08-28 | Segment type case of flame-proof type dry transformer for mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201294136Y true CN201294136Y (en) | 2009-08-19 |
Family
ID=41007621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201057721U Expired - Fee Related CN201294136Y (en) | 2008-08-28 | 2008-08-28 | Segment type case of flame-proof type dry transformer for mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201294136Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295735A (en) * | 2013-07-04 | 2013-09-11 | 中电电气(江苏)股份有限公司 | Flameproof end flange |
-
2008
- 2008-08-28 CN CNU2008201057721U patent/CN201294136Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295735A (en) * | 2013-07-04 | 2013-09-11 | 中电电气(江苏)股份有限公司 | Flameproof end flange |
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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: 20090819 Termination date: 20120828 |