CN217983003U - Dry-type transformer does not cut off power supply and overhauls cooling blower device - Google Patents
Dry-type transformer does not cut off power supply and overhauls cooling blower device Download PDFInfo
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- CN217983003U CN217983003U CN202221173954.9U CN202221173954U CN217983003U CN 217983003 U CN217983003 U CN 217983003U CN 202221173954 U CN202221173954 U CN 202221173954U CN 217983003 U CN217983003 U CN 217983003U
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- type transformer
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Abstract
The utility model provides a cooling fan device for the non-power-off maintenance of a dry-type transformer, which belongs to the technical field of dry-type transformers and comprises a beam and a cooling fan set I; the beams are positioned on two sides of the dry-type transformer and are parallel to the dry-type transformer; the cooling fan set I comprises a cooling fan I, a longitudinal slide rail I, a longitudinal slide block I and an insulating rod I; the longitudinal slide rail I is vertically fixed on the cross beam, is a variable-diameter slide rail and comprises a first slide rail section and a second slide rail section with the diameter smaller than that of the first slide rail section, and the second slide rail section is far away from the dry-type transformer; the longitudinal sliding block I is fixed on the bottom surface of the cooling fan I, and the size of a bayonet is matched with that of a first sliding rail section of the longitudinal sliding rail I; insulator spindle I is located between two vertical slide rails I, and first end is fixed on cooling blower I, and the second end is for drawing the end. The device can overhaul or replace the cooling fan when the transformer runs, and avoids load reduction and even shutdown events caused by the fact that the transformer must be shut down when the cooling fan is replaced.
Description
Technical Field
The utility model belongs to the technical field of dry-type transformer, especially, relate to a dry-type transformer is uninterrupted power and is examined and repaired cooling blower device.
Background
The dry-type transformer is widely used in places such as local illumination, high-rise buildings, airports, wharf CNC mechanical equipment and the like. The dry type transformer is a transformer in which an iron core and a winding are not immersed in insulating oil, and cooling modes are classified into natural air cooling and forced air cooling. During natural air cooling, the transformer can continuously operate for a long time under rated capacity. During forced air cooling, the output capacity of the transformer can be improved by 50%, the transformer is suitable for intermittent overload operation or emergency accident overload operation, and the transformer is not required to be in long-time continuous overload operation due to large load loss and impedance voltage amplification during overload and non-economic operation state. When the cooling blower is used for the dry type transformer, the cooling blower is arranged on two sides of the lower part of the transformer coil and blows cold air into the coil high-voltage and low-voltage cooling air ducts of the transformer directly. The dry-type transformer has the characteristics of small volume, light weight, small occupied space, low installation cost and the like.
Generally, because the installation mode of cooling fan is fixed, when cooling fan trouble, only the shutdown transformer can overhaul and change cooling fan. The cooling fan fault can reduce the heat dissipation capacity of the dry type transformer, the transformer cannot carry large load, the dry type transformer is required to be stopped when the temperature rise is too high, the dry type transformer, particularly the important dry type transformer, can cause load reduction and even stop events when the dry type transformer is stopped, and therefore, the cooling fan fault can be replaced and repaired in time, and the dry type transformer has very important significance for reliable operation of the transformer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a dry-type transformer does not cut off power supply and overhauls cooling blower device can overhaul or change cooling blower when the transformer operation, avoids because the emergence of the load that falls that changes cooling blower must shut down the transformer and lead to shuts down the incident even.
The utility model provides a cooling fan device for the uninterrupted power overhaul of a dry-type transformer, which comprises a cross beam and a cooling fan unit I; the beams are positioned on two sides of the dry-type transformer, are parallel to the dry-type transformer and are fixed on the mounting plane of the dry-type transformer; the cooling fan set I comprises a cooling fan I, a longitudinal slide rail I, a longitudinal slide block I and an insulating rod I; the longitudinal slide rail I is vertically fixed on the cross beam, is a variable-diameter slide rail, is the safe overhaul distance of the cooling fan, and comprises a first slide rail section and a second slide rail section with the diameter smaller than that of the first slide rail section, and the second slide rail section is far away from the dry-type transformer; the longitudinal sliding block I is fixed on the bottom surface of the cooling fan I, and the size of the bayonet is matched with that of the first sliding rail section of the longitudinal sliding rail I; insulator spindle I is located between two vertical slide rails I, and first end is fixed on cooling blower I, and dry-type transformer is kept away from as drawing the end to the second end.
Furthermore, a cooling fan set I is aligned to a cover door of the transformer outer cover, and cooling fan sets II are arranged on two sides of the cooling fan set I; the cooling fan set II comprises a cooling fan II, a longitudinal slide rail II, a longitudinal slide block II, a transverse slide rail, a transverse slide block and an insulating rod II; the longitudinal sliding rail II is vertically fixed on the cross beam, and the length of the longitudinal sliding rail II is the safe overhaul distance of the cooling fan; the longitudinal sliding block II is fixed on the bottom surface of the transverse sliding rail and is in sliding fit with the longitudinal sliding rail II; the transverse sliding rail is parallel to the cross beam, is a variable-diameter sliding rail and comprises a first sliding rail section and a second sliding rail section with the diameter smaller than that of the first sliding rail section, and the second sliding rail faces the cooling fan unit I; the transverse sliding block is fixed on the bottom surface of the cooling fan II, and the size of the bayonet is matched with that of the first sliding rail section of the transverse sliding rail; insulator spindle II is located two vertical slide rails between II, and first end is fixed on cooling blower II, and dry-type transformer is kept away from as drawing the end to the second end.
Furthermore, a fixed cylinder is fixed on the cooling fan, and an L-shaped clamping groove is formed in the fixed cylinder; the insulating rod is fixed with a bolt, the first end of the insulating rod is inserted into the fixing cylinder, the bolt penetrates through the vertical groove of the L-shaped clamping groove, the insulating rod rotates, and the bolt is clamped in the transverse groove of the L-shaped clamping groove.
Further, a through hole for the insulation rod to pass through is formed in the bottom beam of the transformer outer cover.
Furthermore, a limiting sleeve is fixed on the outer side of the through hole, and the insulating rod penetrates through the limiting sleeve.
The utility model discloses following beneficial effect has:
1. a drawer type push-pull mode is adopted, the fault cooling fan is pulled away from the transformer in the live running state of the dry-type transformer, and when the overhaul site of the cooling fan and the live part of the dry-type transformer reach a sufficient safety distance, overhaul and replacement of the cooling fan are carried out;
2. the cooling fan is pushed and pulled through the insulating rod to isolate the electrified part of the dry-type transformer, so that the possibility of electric shock in the pushing and pulling process is prevented;
3. the cooling fan is convenient to disassemble and assemble, the track matched with the cooling fan adopts a reducing structure, when the cooling fan is pulled to the second slide rail section, the insulating rod is rotated to enable the bolt to penetrate through the vertical groove of the L-shaped clamping groove, the insulating rod and the cooling fan can be separated without disassembling the bolt, and the cooling fan can be taken out only by lifting up the cooling fan;
4. the cooling fan is convenient and labor-saving to pull out and push in, and can be completed by only one hand.
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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 layout diagram of a cooling fan device for non-power-off maintenance of a dry type transformer on the high-voltage side of the transformer;
FIG. 2 is a layout diagram of a cooling fan device for non-power-off maintenance of a dry type transformer on the low-voltage side of the transformer;
fig. 3 is an enlarged view of a portion a in fig. 1.
Icon: 1. a cross beam; 2. a cooling fan I; 3. a longitudinal slide rail I; 4. an insulating rod I; 5. a cooling fan II; 6. a longitudinal slide rail II; 7. a transverse slide rail; 8. an insulating rod II; 9. a fixed cylinder; 10. an L-shaped clamping groove; 11. a bolt; 12. a limiting sleeve.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment provides a cooling fan device for the uninterruptible maintenance of a dry-type transformer, which comprises a cross beam 1 and a cooling fan unit I; the beams 1 are positioned at two sides of the dry-type transformer, are parallel to the dry-type transformer and are fixed on the mounting plane of the dry-type transformer; the cooling fan set I comprises a cooling fan I2, a longitudinal slide rail I3, a longitudinal slide block I and an insulating rod I4; the longitudinal slide rail I3 is vertically fixed on the cross beam 1, is a variable-diameter slide rail, is the safe overhaul distance of the cooling fan, and comprises a first slide rail section and a second slide rail section with the diameter smaller than that of the first slide rail section, and the second slide rail section is far away from the dry-type transformer; the longitudinal sliding block I is fixed on the bottom surface of the cooling fan I2, and the size of the bayonet is matched with that of the first sliding rail section of the longitudinal sliding rail I3; insulator spindle I4 is located between two vertical slide rails I3, and first end is fixed on cooling blower I2, and dry-type transformer is kept away from as drawing the end to the second end.
When cooling blower I2 broke down, dry-type transformer did not cut off the power supply, held the first slide rail section that will cooling blower I2 by vertical slide rail I3 through the second of insulator spindle I4 and pulled to the second slide rail section, because I size of vertical slider is greater than the size of second slide rail section, can directly mention cooling blower I2 from the second slide rail section.
The cooling fan uninterrupted power supply overhaul device for the dry-type transformer is suitable for the dry-type transformer without an outer cover and also suitable for the dry-type transformer with the outer cover, but when a plurality of cooling fans I2 are arranged, the transformer outer cover is required to be provided with cover doors corresponding to the cooling fans I2, the existing transformer outer cover is mostly provided with one cover door, and in order to adapt to the situation, the dry-type transformer uninterrupted power supply overhaul cooling fan device is improved.
The improvement point is that the cooling fan set I is aligned to a cover door of the transformer outer cover, and the two sides of the cooling fan set I are provided with the cooling fan set II; the cooling fan set II comprises a cooling fan II 5, a longitudinal slide rail II 6, a longitudinal slide block II, a transverse slide rail 7, a transverse slide block and an insulating rod II 8; the longitudinal sliding rail II 6 is vertically fixed on the cross beam 1, and the length is the safe overhaul distance of the cooling fan; the longitudinal sliding block II is fixed on the bottom surface of the transverse sliding rail 7 and is in sliding fit with the longitudinal sliding rail II 6; the transverse slide rail 7 is parallel to the cross beam 1, is a variable-diameter slide rail and comprises a first slide rail section and a second slide rail section with the diameter smaller than that of the first slide rail section, and the second slide rail faces the cooling fan set I; the transverse sliding block is fixed on the bottom surface of the cooling fan II 5, and the size of the bayonet is matched with that of the first sliding rail section of the transverse sliding rail; and the insulating rod II 8 is positioned between two longitudinal sliding rails II 6, the first end of the insulating rod is fixed on the cooling fan II 5, and the second end of the insulating rod is far away from the dry-type transformer and serves as a traction end.
When II 5 of cooling blower broke down, dry-type transformer did not cut off the power supply, held the second through II 8 of insulator spindle and pulled II 5 of cooling blower to the outermost end of II 6 of vertical slide rail, demolishd II 8 of insulator spindle, pulled II 5 of cooling blower to the second slide rail section from the first slide rail section of horizontal slide rail 7 again, can follow the cover door and locate to mention II of cooling blower from the second slide rail section.
In order to facilitate the assembly and disassembly of the insulating rod, a fixed cylinder 9 is fixed on the cooling fan, and an L-shaped clamping groove 10 is formed in the fixed cylinder 9; be fixed with bolt 11 on the insulator spindle, first end is inserted and is established in solid fixed cylinder 9, and bolt 11 passes the vertical groove of L shape draw-in groove 10, and the insulator spindle is rotatory, and bolt 11 card realizes the fixed of insulator spindle in the transverse groove of L shape draw-in groove 10, and the reverse rotation insulator spindle can separate with cooling blower.
In order to facilitate the push-pull operation of the transformer outer cover, a through hole for the insulating rod to pass through is formed in the bottom beam of the transformer outer cover.
In order to prevent the insulating rod from radially deviating, a limiting sleeve 12 is fixed outside the through hole, and the insulating rod penetrates through the limiting sleeve 12.
The fixed cylinder 9 is installed on the cooling fan through welding or bolt connection, and the stop collar 12 is installed on the bottom beam of the transformer housing through welding or bolt connection.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. A cooling fan device for maintenance of a dry type transformer without power failure is characterized by comprising a cross beam and a cooling fan unit I;
the beams are positioned on two sides of the dry-type transformer, are parallel to the dry-type transformer and are fixed on the mounting plane of the dry-type transformer;
the cooling fan set I comprises a cooling fan I, a longitudinal slide rail I, a longitudinal slide block I and an insulating rod I;
the longitudinal slide rail I is vertically fixed on the cross beam, is a variable-diameter slide rail, is the safe overhaul distance of the cooling fan, and comprises a first slide rail section and a second slide rail section, the diameter of the second slide rail section is smaller than that of the first slide rail section, and the second slide rail section is far away from the dry-type transformer;
the longitudinal sliding block I is fixed on the bottom surface of the cooling fan I, and the size of a bayonet is matched with that of a first sliding rail section of the longitudinal sliding rail I;
insulator spindle I is located between two vertical slide rails I, and first end is fixed on cooling blower I, and dry-type transformer is kept away from as the end of drawing to the second end.
2. The uninterrupted overhaul cooling fan device for the dry-type transformer according to claim 1, wherein a cooling fan set I is aligned with a cover door of a transformer outer cover, and cooling fan sets II are arranged on two sides of the cooling fan set I;
the cooling fan set II comprises a cooling fan II, a longitudinal slide rail II, a longitudinal slide block II, a transverse slide rail, a transverse slide block and an insulating rod II;
the longitudinal sliding rail II is vertically fixed on the cross beam, and the length of the longitudinal sliding rail II is the safe overhaul distance of the cooling fan;
the longitudinal sliding block II is fixed on the bottom surface of the transverse sliding rail and is in sliding fit with the longitudinal sliding rail II;
the transverse sliding rail is parallel to the cross beam, is a variable-diameter sliding rail and comprises a first sliding rail section and a second sliding rail section with the diameter smaller than that of the first sliding rail section, and the second sliding rail faces the cooling fan set I;
the transverse sliding block is fixed on the bottom surface of the cooling fan II, and the size of the bayonet is matched with that of the first sliding rail section of the transverse sliding rail;
insulator spindle II is located two vertical slide rails between II, and first end is fixed on cooling blower II, and dry-type transformer is kept away from as drawing the end to the second end.
3. The dry-type transformer uninterruptible power maintenance cooling fan device according to claim 1 or 2, wherein a fixed cylinder is fixed on the cooling fan, and an L-shaped clamping groove is formed in the fixed cylinder;
the insulating rod is fixed with a bolt, the first end of the insulating rod is inserted into the fixing cylinder, the bolt penetrates through the vertical groove of the L-shaped clamping groove, the insulating rod rotates, and the bolt is clamped in the transverse groove of the L-shaped clamping groove.
4. The cooling fan device for uninterrupted power supply maintenance of the dry-type transformer according to claim 3, wherein a through hole for an insulation rod to pass through is formed in the bottom beam of the transformer housing.
5. The dry-type transformer uninterrupted power supply overhaul cooling fan device as claimed in claim 4, wherein a limiting sleeve is fixed outside the through hole, and the insulating rod penetrates through the limiting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221173954.9U CN217983003U (en) | 2022-05-17 | 2022-05-17 | Dry-type transformer does not cut off power supply and overhauls cooling blower device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221173954.9U CN217983003U (en) | 2022-05-17 | 2022-05-17 | Dry-type transformer does not cut off power supply and overhauls cooling blower device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217983003U true CN217983003U (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221173954.9U Active CN217983003U (en) | 2022-05-17 | 2022-05-17 | Dry-type transformer does not cut off power supply and overhauls cooling blower device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217983003U (en) |
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2022
- 2022-05-17 CN CN202221173954.9U patent/CN217983003U/en active Active
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