CN2363358Y - Forced oil circulation air-cooling device for transformer - Google Patents
Forced oil circulation air-cooling device for transformer Download PDFInfo
- Publication number
- CN2363358Y CN2363358Y CN 98232888 CN98232888U CN2363358Y CN 2363358 Y CN2363358 Y CN 2363358Y CN 98232888 CN98232888 CN 98232888 CN 98232888 U CN98232888 U CN 98232888U CN 2363358 Y CN2363358 Y CN 2363358Y
- Authority
- CN
- China
- Prior art keywords
- cooling
- water pipe
- cooling water
- transformer
- end plate
- 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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- Transformer Cooling (AREA)
Abstract
The utility model relates to a forced oil circulation air-cooling device for transformers. The utility model comprises a cooling core which is composed of a cooling tube, a cooling end plate setting the cooling tube, and a side plate supporting the cooling end plate, and also a cooling fan and an oil pump communicated with the cooling tube. The utility model is characterized in that grooves are uniformly distributed on the inner wall of the cooling pipe along the axial direction of the inner diameter of the cooling pipe. The utility model can raise the cooling efficiency and reduce the processing cost and the power consumption.
Description
The utility model relates to a kind of transformer forced oil-circulation forced air cooler.
Large oil immersed formula transformer is one of power transmission and transformation crucial in the fields such as the energy, metallurgy, chemical industry or power-equipment, and the forced oil-circulation cooler is the main cooling device of cooling large-sized oil-filled transformer.Cooling water pipe in the cooler generally adopts iron pipe, aluminum pipe or iron aluminium composite pipe etc.Because it is all easily get rusty inside and outside iron pipe and the iron aluminium composite pipe, and easy-clear is unclean, thereby bigger to the influence of transformer runnability.And aluminum pipe is after extrusion process, and its surface produces oxide layer, can increase antiseptic power.So the application of aluminum pipe is increasingly extensive.Large-scale cooler will for satisfying the load-bearing requirement of mechanical strength, cool off end plate and generally adopt steel plate with hundreds of cooling water pipes.And in the prior art, aluminum pipe generally adopts the argon arc welding manner with cooling end plate connection place, and mainly there is following shortcoming in it:
1, is engaged in the argon arc welding job for a long time, influences health of operators;
2, crudy is wayward, thus can not guarantee the diameter dimension at soldering opening place, thus influence the oily flow and the cooling effect of cooler;
3, forced air cooler is in running, and variations in temperature is bigger, and aluminum pipe can produce stress with the welding connection place of cooling end plate, and weld is torn, and minute crack occurs and seepage oil;
4, welding needs argon gas, welding rod and argon arc welding machine etc., processing time consuming, and the production cycle is long, the cost height.
At present, the main smooth cooling water pipe inwall of deep fat contact that relies on of cooling water pipe heat radiation, the fin outside the cooling water pipe inwall is delivered to pipe cools off by air circulation then.This radiator structure, area of dissipation is little, and cooling effectiveness is low, can't satisfy the heat radiation requirement of high-power forced air cooler.For improving cooling effectiveness, existing cooler need adopt the multiloop cooling circuit in 3-5 loop, has not only increased the cooling water pipe consumption, because required oil pump lift is big, the power that oil pump consumes is also bigger.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and a kind of cooling effectiveness that can improve greatly is provided, and cuts down finished cost and the transformer forced oil-circulation forced air cooler of power consumption.
The purpose of this utility model can reach by following measure:
A kind of transformer forced oil-circulation forced air cooler, comprise by cooling water pipe (3), the cooling end plate (4) of cooling water pipe (3) be set and support the cooling fuse that the side plate (1) of cooling end plate (4) is constituted, also comprise cooling fan (2) and the oil pump (5) that is communicated with cooling water pipe (3), its special character is: on described cooling water pipe (3) inwall, along the bore axes of pipe to being provided with uniform groove (6).
Pitch, helical form flow-disturbing silk (7) can be set in the cooling water pipe of the present utility model (3) etc., and flow-disturbing silk (7) inboard is provided with support bar (9), and flow-disturbing line (7) is fixed on this support bar (9).
The utility model is located at support bar (9) in the flow-disturbing silk (7) and is can be one or uniform setting two or many.
The cooling circuit of cooling water pipe of the present utility model (7) is that single loop is arranged.
Cooling water pipe of the present utility model (3) can adopt the expansion fit system with cooling end plate (4); Described cooling end plate (4) is gone up the hole inwall that cooperates with cooling water pipe (3) and is provided with hole internal recessing (10).
Expansion cooperation place with cooling end plate (4) in the cooling water pipe of the present utility model (3) can be provided with lining (8).
Cooling end plate of the present utility model (4) is connected and fixed by bolt (12) with side plate (1), and the screw root of described bolt can be provided with elastic telescopic device (13).
The accompanying drawing drawing is described as follows:
Fig. 1 is the general assembly schematic diagram of the utility model forced air cooler;
Fig. 2 is the cross sectional representation of the utility model cooling water pipe;
Fig. 3 be the utility model cooling water pipe and with the schematic diagram that cooperates of cooling end plate;
The schematic diagram that Fig. 4 arranges for the utility model cooling circuit single loop;
Fig. 5 is the utility model cooling end plate and the fixing schematic diagram of side plate.
The utility model is described in further detail below in conjunction with accompanying drawing:
Referring to Fig. 1, the utility model mainly reaches the oil pump 5 that is communicated with cooling water pipe 3 by cooling fuse, cooling fan 2 and constitutes.The cooling fuse is made of the side plate 1 of cooling water pipe 3, the cooling end plate 4 that cooling water pipe 3 is set and support cooling end plate 4; Referring to Fig. 2, for increasing area of dissipation, improve cooling effectiveness, the cooling water pipe 3 that the utility model adopted is on its inwall, along the uniform groove 6 of being axially arranged with of ips.For further improving cooling effectiveness, the utility model can be provided with flow-disturbing silk 7 in cooling water pipe 3, referring to Fig. 3.Flow-disturbing silk 7 is shape in the shape of a spiral, and support bar 9 inserts in it, and flow-disturbing silk 7 is fixedly welded on the support bar 9 by the contact point of its inwall and support bar 9.Solder joint should guarantee that spirality flow-disturbing silk 7 has equal pitch.Support bar 9 is advisable with two, also can adopt one or uniform many.During use, the flow-disturbing silk 7 that will be fixed on the support bar 9 gets final product along the insertion of cooling water pipe 3 inwalls.Cooling water pipe 3 of the present utility model adopts the expansion of expand tube formula to cooperate with cooling end plate 4, promptly on the mating holes inwall of cooling end plate 4, hole internal recessing 10 is set earlier, after cooling water pipe 3 inserted, the outer wall that makes cooling water pipe 3 with the method for expand tube with cool off end plate 4 firm, cooperate reliably, and in the embedded groove 10.For increasing the mechanical strength of cooling water pipe 3 expansions place, lining 8 can be set at this place, be about to steel lining 8 and insert in the cooling water pipe 3, the method with expand tube makes lining 8 embed the inwall of cooling water pipe 3 equally.Referring to Fig. 4, the cooling circuit of the utility model cooling water pipe 3 can adopt single loop to arrange, and arrow is depicted as oily flow path direction 11.Thus, not only significantly reduce the consumption of cooling water pipe 3, also reduced the power consumption of oil pump 5.Referring to Fig. 5, cooling end plate 4 is connected and fixed by breechblock 12 with side plate 1, and the utility model is provided with elastic telescopic device 13 at the screw root of bolt 12, and it can be placed in the screw root, specifically can adopt spring or rubber-like elastic washer etc.Since the compensation require elastic force big with elastic telescopic device 13, be out of shape little, so with the employing butterfly spring be advisable.The butterfly spring deflection is less, so the version of available a plurality of butterfly spring series connection.Elastic washer also can adopt a plurality of members to form.Flexible for ease of 13 distortion of elastic telescopic device, the screw root is advisable with shiny surface.
The utility model compared with prior art has following advantage:
1, the cooling tube inwall is provided with groove, and the area of dissipation of deep fat can increase more than 30～45%, thereby carries High cooling effectiveness.
2, the stirring action of flow-disturbing silk in the cooling tube can make the deep fat at cooling tube center and tube wall temperature lower Oil carry out sufficient heat exchange, can further improve cooling effectiveness.
3, cooling circuit adopts single loop to arrange, and has reduced the cooling tube consumption, has saved raw material, and is also big Reduced greatly the power consumption of oil pump, the cooling tube number can reduce more than 20～30%, and the oil pump power consumption can reduce by 30% left side Right.
4, cooling tube adopts the expanded joint expansion to cooperate with the cooling end plate, and machining period can reduce half, so can carry High efficiency; Need not to consume auxiliary material in the processing and use auxiliary equipment, processing cost is low; Temperature becomes The connection place can not produce stress during change, and can guarantee direct size and the quality of connecting port place cooling tube, to oil Flow does not have impact.
5, the cooling end plate adopts steel material, mechanical strength height; Cooling tube is close with the expanded joint place of cooling end plate Envelope property is good, cooperates closely reliably, has also increased mechanical strength.
Claims (7)
1, a kind of transformer forced oil-circulation forced air cooler, comprise by cooling water pipe (3), the cooling end plate (4) of cooling water pipe (3) be set and support the cooling fuse that the side plate (1) of cooling end plate (4) is constituted, also comprise cooling fan (2) and the oil pump (5) that is communicated with cooling water pipe (3), it is characterized in that: on described cooling water pipe (3) inwall, along the bore axes of pipe to being provided with uniform groove (6).
2, transformer as claimed in claim 1 forced oil-circulation forced air cooler, it is characterized in that: pitch, helical form flow-disturbing silk (7) such as be provided with in the described cooling water pipe (3), flow-disturbing silk (7) inboard is provided with support bar (9), and flow-disturbing line (7) is fixed on this support bar (9).
3, transformer as claimed in claim 2 forced oil-circulation forced air cooler is characterized in that: the described support bar of being located in the flow-disturbing silk (7) (9) is one or uniform setting two or many.
4, transformer as claimed in claim 1 or 2 forced oil-circulation forced air cooler is characterized in that: the cooling circuit of described cooling water pipe (7) is that single loop is arranged.
5, transformer as claimed in claim 1 or 2 forced oil-circulation forced air cooler is characterized in that: described cooling water pipe (3) cooperates with cooling end plate (4) expansion; Described cooling end plate (4) is gone up the hole inwall that cooperates with cooling water pipe (3) and is provided with hole internal recessing (10).
6, transformer as claimed in claim 5 forced oil-circulation forced air cooler is characterized in that: the expansion cooperation place with cooling end plate (4) in the described cooling water pipe (3) is provided with lining (8).
7, transformer as claimed in claim 6 forced oil-circulation forced air cooler is characterized in that: described cooling end plate (4) is connected and fixed by bolt (12) with side plate (1), and the screw root of described bolt is provided with elastic telescopic device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232888 CN2363358Y (en) | 1998-07-24 | 1998-07-24 | Forced oil circulation air-cooling device for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98232888 CN2363358Y (en) | 1998-07-24 | 1998-07-24 | Forced oil circulation air-cooling device for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2363358Y true CN2363358Y (en) | 2000-02-09 |
Family
ID=33981729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98232888 Expired - Fee Related CN2363358Y (en) | 1998-07-24 | 1998-07-24 | Forced oil circulation air-cooling device for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2363358Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169747A (en) * | 2010-01-16 | 2011-08-31 | Abb技术有限公司 | Housing for an electric machine |
| CN108597763A (en) * | 2018-04-19 | 2018-09-28 | 保定多田冷却设备有限公司 | Transformer forced oil-circulation cooling tube mixing arrangement type forced air cooler |
| CN111816414A (en) * | 2020-06-29 | 2020-10-23 | 于春龙 | Rapid cooling method based on outdoor transformer |
-
1998
- 1998-07-24 CN CN 98232888 patent/CN2363358Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169747A (en) * | 2010-01-16 | 2011-08-31 | Abb技术有限公司 | Housing for an electric machine |
| CN102169747B (en) * | 2010-01-16 | 2015-07-22 | Abb技术有限公司 | Housing for an electric machine |
| CN108597763A (en) * | 2018-04-19 | 2018-09-28 | 保定多田冷却设备有限公司 | Transformer forced oil-circulation cooling tube mixing arrangement type forced air cooler |
| CN111816414A (en) * | 2020-06-29 | 2020-10-23 | 于春龙 | Rapid cooling method based on outdoor transformer |
| CN111816414B (en) * | 2020-06-29 | 2021-05-11 | 江苏保庆电器设备有限公司 | Rapid cooling method based on outdoor transformer |
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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 |