CN2323459Y - Enforced oil circulation air cooler - Google Patents
Enforced oil circulation air cooler Download PDFInfo
- Publication number
- CN2323459Y CN2323459Y CN 97250118 CN97250118U CN2323459Y CN 2323459 Y CN2323459 Y CN 2323459Y CN 97250118 CN97250118 CN 97250118 CN 97250118 U CN97250118 U CN 97250118U CN 2323459 Y CN2323459 Y CN 2323459Y
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- CN
- China
- Prior art keywords
- inwall
- tube
- finned tube
- fin
- oval
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- 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 belongs to a transformer component which is suitable for a forced-oil and forced-air cooling transformer, comprising and upper and a lower oil chambers, a cooling pipe cluster, etc. The utility model is characterized in that the structure of each cooling pipe of the cooling pipe cluster is that the outer wall of an elliptical or a drip-shaped, etc. flat basal pipe is extruded with a flat integral fin pipe composed of fins; each fin of each fin pipe is provided with a cutting opening or a groove opening, or the fin is provided with corrugations around the basal pipe; the interior of each cooling pipe is provided with a metal spiral line; a fan motor adopts a permanent magnet synchronous motor. The utility model has the advantages of high heat efficiency, good fabrication process condition, low auxiliary machinery consumption, high reliability, etc.
Description
A kind of oil cooling that the utility model belongs to transformer is parts or claim assembly but, are applicable to the transformer of forced oil-circulation air cooling.
At present, the forced oil-circulation forced air cooler used of transformer is made up of upper chamber, lower oil chamber, side plate, tube sheet, cooling tube bundle, pressing plate, fan case, terminal box etc.For improving the heat transfer efficiency of forced oil-circulation forced air cooler, cooling water pipe employing inwall in the cooling tube bundle is the oval of smooth surface or drips the metal fin pipe that is with rectangular fin on the shape parent tube outer wall or is wound with banded fin formation that the fan motor of adorning in the fan case is an asynchronous motor.Its weak point is: 1. since the fin of cooling water pipe be set up or around getting on, not only need overlay coating to handle, and have contact heat resistance between fin and parent tube, therefore, fabrication process condition is poor, the heat transfer efficiency of cooler is low; 2. be asynchronous motor owing to fan motor, efficient is low, therefore the subsidiary engine loss that has increased cooler.
The purpose of this utility model is to overcome the weak point in the above-mentioned prior art, and a kind of heat transfer efficiency height, better, the low forced oil-circulation forced air cooler of subsidiary engine loss of fabrication process condition are provided.
The purpose of this utility model can reach by following technical measures: it comprises upper chamber, lower oil chamber, side plate, tube sheet, the cooling tube bundle, pressing plate, fan case, terminal box etc., its special character is: the cooling water pipe that cools off in the tube bundle is employing squeezes out the fin formation on the outer wall of flat parent tubes such as oval or a shape whole flat (ellipse or a shape an etc.) finned tube, that is: inwall is the oval finned tube of smooth surface, or inwall is a shape finned tube of smooth surface, or inwall has the oval finned tube of straight rib or spiral ribs, or inwall has a shape finned tube of straight rib or spiral ribs, or to be compounded with inwall on the inwall of oval finned tube be that the inwall that the metal tube of the another kind of metal of smooth surface constitutes is the oval finned tube of bimetallic of smooth surface, or dripping to be compounded with inwall on the inwall of shape finned tube be that inwall that the metal tube of the another kind of metal of smooth surface constitutes is that the bimetallic of smooth surface drips the shape finned tube, or on the inwall of oval finned tube, be compounded with inwall and have the inwall that the metal tube of the another kind of metal of straight rib or spiral ribs constitutes and have the oval finned tube of bimetallic of straight rib or spiral ribs, or on the inwall that drips the shape finned tube, be compounded with inwall and have the bimetallic that inwall that the metal tube of the another kind of metal of straight rib or spiral ribs constitutes has straight rib or spiral ribs and drip the shape finned tube; For further improving the heat transfer efficiency of above-mentioned forced oil-circulation forced air cooler wind side, also can inwardly be provided with otch or notch in the fin outer rim of above-mentioned whole flat (ellipse or a shape etc.) finned tube, and the fin on otch or notch both sides each other rightabout tilt, or be provided with ripple around parent tube in outer rim near fin; For further improving the heat transfer efficiency of above-mentioned the utility model oil side, also can be built-in with wire spiral, and the one or both ends of wire spiral are fixed on the tube sheet at cooling water pipe; For further reducing the subsidiary engine loss, the fan motor of the utility model in fan case adopts permanent magnet synchronous motor.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 front view of the present utility model;
Fig. 2 end view of the present utility model;
Fig. 3 rearview of the present utility model;
Fig. 4 cooling water pipe and tube sheet syndeton schematic diagram;
Fig. 5 inwall is the oval finned tube A cross-sectional structure schematic diagram of smooth surface;
Fig. 6 inwall is a shape finned tube B cross-sectional structure schematic diagram of smooth surface;
Fig. 7 inwall has the oval finned tube C cross-sectional structure schematic diagram of straight rib or spiral ribs;
Fig. 8 inwall has a shape finned tube D cross-sectional structure schematic diagram of straight rib or spiral ribs;
Fig. 9 inwall is the oval finned tube E of the bimetallic cross-sectional structure schematic diagram of smooth surface;
Figure 10 inwall is that the bimetallic of smooth surface drips shape finned tube F cross-sectional structure schematic diagram;
Figure 11 inwall has the oval finned tube G of the bimetallic cross-sectional structure schematic diagram of straight rib or spiral ribs;
The bimetallic that Figure 12 inwall has straight rib or spiral ribs drips shape finned tube H cross-sectional structure schematic diagram;
Figure 13 inwall is flat (an oval or shape) the finned tube partial structurtes cutaway view of smooth surface;
Figure 14 inwall is provided with flat (an oval or shape) the finned tube partial structurtes cutaway view of straight rib;
Figure 15 inwall is provided with flat (an oval or shape) the finned tube partial structurtes cutaway view of spiral ribs;
Figure 16 inwall is bimetallic flat (an oval or shape) the finned tube partial structurtes cutaway view of smooth surface;
Figure 17 inwall is provided with bimetallic flat (an oval or shape) the finned tube partial structurtes cutaway view of straight rib;
Figure 18 inwall is provided with bimetallic flat (an oval or shape) the finned tube partial structurtes cutaway view of spiral ribs;
Figure 19 has the fin partial structurtes schematic diagram of otch or notch;
Figure 20 fin has the partial structurtes schematic diagram of ripple;
Exoskeletal wire spiral of Figure 21 and tube sheet fixed structure schematic diagram;
Figure 22 monoskeleton wire spiral and tube sheet fixed structure schematic diagram;
Two skeleton wire spirals of Figure 23 and tube sheet fixed structure schematic diagram;
With reference to Fig. 1～Figure 23.It is to squeeze out whole flat (ellipse or a shape etc.) finned tube that fin constitutes on the outer wall of flat parent tubes such as oval or a shape that the utility model cools off the cooling water pipe 9 that is adopted in the tube bundle 5.Whole flat finned tube, it is cooling water pipe 9, comprise: the inwall that squeezes out fin b formation on the outer wall of oval parent tube a is the oval finned tube A of smooth surface, or dripping the shape finned tube B that the inwall that squeezes out fin d formation on the shape parent tube c outer wall is a smooth surface, or on the inwall of the parent tube a of oval finned tube A, be provided with the oval finned tube C that inwall that straight rib i or spiral ribs j constitute has straight rib or spiral ribs, or the inwall that is provided with straight rib k or spiral ribs 1 formation on the inwall of the parent tube c that drips shape finned tube B has a shape finned tube D of straight rib or spiral ribs, or to be compounded with inwall on the inwall of oval finned tube A be that the inwall that the metal tube e of the another kind of metal of smooth surface constitutes is the oval finned tube E of bimetallic of smooth surface, or dripping to be compounded with inwall on the inwall of shape finned tube B be that inwall that the metal tube f of the another kind of metal of smooth surface constitutes is that the bimetallic of smooth surface drips shape finned tube F, or on the inwall of oval finned tube A, be compounded with inwall and have the inwall that the metal tube g of the another kind of metal of straight rib i or spiral ribs j constitutes and have the oval finned tube G of bimetallic of straight rib or spiral ribs, or on the inwall that drips shape finned tube B, be compounded with inwall and have the bimetallic that inwall that the metal tube h of the another kind of metal of straight rib k or spiral ribs 1 constitutes has straight rib or spiral ribs and drip shape finned tube H.Side plate 3 and tube sheet 4 are connected into framework, again the two ends of each root of any whole flat finned tube (A or B or C or D or E or F or G or H) that above-mentioned cooling water pipe 9 is adopted respectively with framework on upper perforated plate 4 be connected with lower perforated plate 4, form cooling tube bundle 5, and it is compressed with pressing plate 6, to increase the rigidity of cooling tube bundle 5, prevent operating noise.Then, upper chamber 1 and lower oil chamber 2 are welded on respectively on the upper and lower tube sheet 4.Side at framework is loaded onto fan case 7, and terminal box 8 is contained on the fan case 7.The path that upper chamber 1 and lower oil chamber 2 are connected with the whole flat finned tube that cooling water pipe 9 is adopted forms oil circuit.The opposite side of framework leaves installing hole, the sound-absorbing air duct can be installed in case of necessity reduce noise.
Be further to improve the heat transfer efficiency of above-mentioned utility model wind side, also can on the fin b of the above-mentioned whole flat finned tube that adopts or d, have otch or notch m, and make otch or notch m both sides fin each other rightabout tilt; Or be provided with ripple n in the outer rim near fin b or d, and ripple n is around flat parent tube.
For further improving the heat transfer efficiency of above-mentioned the utility model oil side, also can be built-in with wire spiral 10, and the one or both ends of wire spiral 10 are fixed on the tube sheet 4 at the whole flat finned tube that above-mentioned cooling water pipe 9 is adopted.The fixed structure of exoskeletal wire spiral 10 as shown in figure 21.The fixed structure that has the end of wire spiral 10 of monoskeleton r and a tube sheet 4 as shown in figure 22.The fixed structure that has the end of wire spiral 10 of two skeleton r and a tube sheet 4 as shown in figure 23.
For further reducing above-mentioned subsidiary engine loss of the present utility model, the fan motor in the fan case 7 adopts permanent magnet synchronous motor.
The utility model compared with the prior art good effect is as follows;
1. because cooling tube of the present utility model adopts the outer wall at flat parent tube to squeeze out the fin formation Whole flat (oval or drip shape etc.) finned tube, eradicated in the prior art between fin and parent tube Thermal resistance, therefore, the heat transfer efficiency height, fabrication process condition is good;
2. owing to be provided with otch or notch in the outer rim of the utility model cooling tube fin, and otch or The fin on notch both sides each other rightabout tilts, or is provided with ripple around parent tube in the outer rim of fin, Thereby make the gas side produce turbulent flow, destroy the boundary-layer of air-flow, therefore, further improved the heat transfer of gas side Coefficient;
3. owing on cooling water pipe inwall of the present utility model, be provided with straight rib or spiral ribs, increase the heat transfer area in the pipe, therefore improved the thermal transmission coefficient of oily side;
4. owing to be built-in with wire spiral at cooling water pipe of the present utility model, destroyed laminar sublayer, produced strong turbulent flow, even under the lower situation of flow velocity, higher heat transfer efficiency is also arranged, therefore, overcome the drawback of coming enhance heat transfer efficient with the raising flow velocity, both further improve heat transfer efficiency, reduced the subsidiary engine loss again;
5. because the fan motor in the utility model fan case adopts permanent magnet synchronous motor, therefore not only improved the efficient of motor, and further reduced the subsidiary engine loss;
6. because cooling water pipe of the present utility model adopts composite bimetal pipe, therefore not only improved rigidity, and improved the antiseep ability, reliability is higher;
In a word, the utlity model has the heat transfer efficiency height, fabrication process condition is good, the subsidiary engine loss is low, reliability is than advantages such as height.
Claims (4)
1. forced oil-circulation forced air cooler, comprise upper chamber, lower oil chamber, side plate, tube sheet, the cooling tube bundle, pressing plate, fan case, terminal box etc., it is characterized in that: the cooling water pipe in the cooling tube bundle is to adopt on the outer wall of flat parent tubes such as oval or a shape to squeeze out the whole flat finned tube that fin constitutes, that is: inwall is the oval finned tube of smooth surface, or inwall is a shape finned tube of smooth surface, or inwall has the oval finned tube of straight rib or spiral ribs, or inwall has a shape finned tube of straight rib or spiral ribs, or to be compounded with inwall on the inwall of oval finned tube be that the inwall that the metal tube of the another kind of metal of smooth surface constitutes is the oval finned tube of bimetallic of smooth surface, or dripping to be compounded with inwall on the inwall of shape finned tube be that inwall that the metal tube of the another kind of metal of smooth surface constitutes is that the bimetallic of smooth surface drips the shape finned tube, or on the inwall of oval finned tube, be compounded with inwall and have the inwall that the metal tube of the another kind of metal of straight rib or spiral ribs constitutes and have the oval finned tube of bimetallic of straight rib or spiral ribs, or on the inwall that drips the shape finned tube, be compounded with inwall and have the bimetallic that inwall that the metal tube of the another kind of metal of straight rib or spiral ribs constitutes has straight rib or spiral ribs and drip the shape finned tube;
2. forced oil-circulation forced air cooler according to claim 1, it is characterized in that: the fin outer rim at whole flat finned tube inwardly is provided with otch or notch, and the fin on otch or notch both sides each other rightabout tilt, or be provided with ripple around parent tube in outer rim near fin;
3. forced oil-circulation forced air cooler according to claim 1 and 2 is characterized in that: be built-in with wire spiral at cooling water pipe, and the one or both ends of wire spiral are fixed on the tube sheet;
4. forced oil-circulation forced air cooler according to claim 3 is characterized in that: the fan motor in fan case adopts permanent magnet synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97250118 CN2323459Y (en) | 1997-11-21 | 1997-11-21 | Enforced oil circulation air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97250118 CN2323459Y (en) | 1997-11-21 | 1997-11-21 | Enforced oil circulation air cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2323459Y true CN2323459Y (en) | 1999-06-09 |
Family
ID=33956818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97250118 Expired - Fee Related CN2323459Y (en) | 1997-11-21 | 1997-11-21 | Enforced oil circulation air cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2323459Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810401A (en) * | 2016-04-27 | 2016-07-27 | 沈阳天通电气有限公司 | High-capacity forced-oil circulation air cooler |
-
1997
- 1997-11-21 CN CN 97250118 patent/CN2323459Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810401A (en) * | 2016-04-27 | 2016-07-27 | 沈阳天通电气有限公司 | High-capacity forced-oil circulation air cooler |
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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 |