CN213424781U - Optimized excitation variable cooling system - Google Patents
Optimized excitation variable cooling system Download PDFInfo
- Publication number
- CN213424781U CN213424781U CN202022468109.1U CN202022468109U CN213424781U CN 213424781 U CN213424781 U CN 213424781U CN 202022468109 U CN202022468109 U CN 202022468109U CN 213424781 U CN213424781 U CN 213424781U
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- flow fans
- excitation
- cooling system
- transformer box
- model
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Abstract
The utility model provides an excitation becomes cooling system of optimization relates to the excitation and becomes heat dissipation technical field, is applicable to inside the cooling transformer box. The system comprises a plurality of cross flow fans and a plurality of axial flow fans, wherein the cross flow fans are all fixed at the bottom of a transformer box body; the axial flow fans a are uniformly fixed on two side walls of the transformer box body; the utility model discloses an improve the excitation and become the heat dissipation condition, operating temperature when reducing equipment maximum load, extension equipment life, improve equipment operation health level, the good reliability.
Description
Technical Field
The utility model relates to an excitation becomes heat dissipation technical field, concretely relates to excitation becomes cooling system who optimizes.
Background
The 4 x 600MW generator of Yuejing Qian company is produced for eastern electrical machinery factory, the model is DH-600-G, rated power 655.2MW, the supporting model that is the production of Switzerland ABB is RESIBLOC, the capacity is 6000kVA, rated voltage is 22000/840V's excitation becomes, the excitation becomes epoxy resin cast box three-winding dry-type transformer, the cooling mode: AN, the insulation grade of the transformer is F grade, the highest heat-resisting temperature is 155 ℃, and the highest temperature in normal operation is 120 ℃.
Two 4-pole 0.75kW axial fans are arranged at the top of the transformer box body, two cooling fans are in a standby and use state when the transformer operates, usually only one fan at the top of the box body operates, and the heat exchange condition of equipment during high-load operation cannot be met far away, when the load of a generator is 550-600MW, the temperature of an excitation variable winding in the transformer is up to 140 ℃, and because the operating temperature of the excitation variable winding is too high, the service life of the equipment is greatly shortened, and great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can improve the cooling system of the inside cooling capacity of transformer box. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an optimized excitation variable cooling system which acts on a transformer box body and comprises a plurality of cross flow fans and a plurality of axial flow fans a; wherein:
the cross flow fans are all fixed at the bottom of the transformer box body; and the axial flow fans a are uniformly fixed on two side walls of the transformer box body.
Optionally or preferably, two axial fans b are arranged on the top of the transformer.
Based on the technical scheme, the following technical effects can be generated:
the embodiment of the utility model provides a pair of excitation becomes cooling system who optimizes is applicable to inside the cooling transformer box. The utility model discloses an improve the excitation and become the heat dissipation condition, operating temperature when reducing equipment maximum load, extension equipment life, improve equipment operation health level.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the present invention;
in the figure: 1-axial flow fan b; 2-transformer tank body; 3-axial flow fan a; 4-crossflow blower.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1:
the utility model provides an optimized excitation variable cooling system which acts on a transformer box body 2 and comprises a plurality of cross flow fans 4 and a plurality of axial flow fans a 3; wherein:
the cross flow fans 4 are all fixed at the bottom of the transformer box body 2; the axial flow fans a3 are uniformly fixed on two side walls of the transformer tank 2.
Optionally or preferably, two axial fans b1 are arranged on the top of the transformer.
Alternatively or preferably, the crossflow blower 4 and the axial flow blower a3 are both used to draw cool air from outside the cabinet into the cabinet.
Alternatively or preferably, the axial fans b1 are operated simultaneously to draw hot gas from the interior of the tank out of the tank.
Alternatively or preferably, the pole number of the axial fan a3 is 4, and the power thereof is selected to be 0.75 KW.
Alternatively or preferably, the plurality of crossflow blowers 4 are evenly distributed at the bottom of the transformer tank 2.
The embodiment of the utility model provides an in, an excitation becomes cooling system operation effect of optimizing as follows: after the method is used, when the maximum load of the unit runs for a long time of 600MW, the temperature of the three-phase winding of the excitation transformer is kept below 70 ℃, so that the running temperature of the equipment under the original maximum load is reduced from 140 ℃ to below 70 ℃, and therefore the purposes of improving the running condition of the equipment, prolonging the service life of the equipment and ensuring the healthy and safe running of the equipment are achieved.
Claims (2)
1. An excitation cooling system who optimizes acts on transformer box (2), its characterized in that: comprises a plurality of cross flow fans (4) and a plurality of axial flow fans a (3); wherein:
the cross flow fans (4) are all fixed at the bottom of the transformer box body (2); the axial flow fans a (3) are uniformly fixed on two side walls of the transformer box body (2).
2. An optimized excitation cooling system according to claim 1, wherein: and two axial flow fans b (1) are arranged at the top of the transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022468109.1U CN213424781U (en) | 2020-10-30 | 2020-10-30 | Optimized excitation variable cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022468109.1U CN213424781U (en) | 2020-10-30 | 2020-10-30 | Optimized excitation variable cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213424781U true CN213424781U (en) | 2021-06-11 |
Family
ID=76248739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022468109.1U Expired - Fee Related CN213424781U (en) | 2020-10-30 | 2020-10-30 | Optimized excitation variable cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213424781U (en) |
-
2020
- 2020-10-30 CN CN202022468109.1U patent/CN213424781U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210611 Termination date: 20211030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |