CN209843435U

CN209843435U - Heat radiator in oil-immersed transformer

Info

Publication number: CN209843435U
Application number: CN201920652754.3U
Authority: CN
Inventors: 陈军
Original assignee: Jiangxi Yuheng Electric Co Ltd
Current assignee: Jiangxi Yuheng Electric Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2019-12-24
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a heat dissipation device in an oil-immersed transformer, which comprises a first radiator, wherein the rear end of the first radiator is fixedly connected with an oil-immersed transformer shell, the first radiator comprises a bracket, an overheating alarm mechanism and radiating fins, the radiating fins are uniformly arranged on the inner side of the bracket, the side end of the overheating alarm mechanism is fixedly connected with the center of the side end face of the bracket, the overheating alarm mechanism comprises a knob, a sealing ring, a waterproof cover, an air bag and a switch, the outer wall of the side end of the knob is installed on the inner wall of the sealing ring in a threaded mode, the wall of the sealing ring is fixedly and hermetically connected to the side wall of the waterproof cover, the lower portion of the inner wall of the waterproof cover is slidably mounted on the outer wall of the lower portion of the air bag, the side end of the switch is fixedly connected to the center of the side end of the air bag, and the rear ends of the support and the radiating fins are fixedly connected to the outer wall of the oil-immersed transformer shell. The utility model discloses can carry out unusual warning, better satisfying the use needs at radiator high load during operation.

Description

Heat radiator in oil-immersed transformer

Technical Field

The utility model relates to a heat-sinking equipment technical field in the oil-immersed transformer specifically is heat abstractor in the oil-immersed transformer.

Background

The transformer oil is petroleum liquid, has possibility of combustion and has defects in environmental protection, but as the transformer oil has the characteristics of excellent performance and low price, most power transformers still use the transformer oil as an insulating and cooling medium;

because the transformer can produce a large amount of harmful heat energy in the operation work, people usually set up the radiator at its outer wall, its radiator is made by the iron sheet usually, realize the heat dissipation function of radiator through the mode that increases heat radiating area, but when the transformer high load operation, when the unable effectual heat of discharge of radiator simultaneously, the transformer probably burns out, usually through cutting off the power supply after the transformer burns out, and the mode that other people notified knows the abnormal conditions, lead to the problem that its radiator lacks alarm mechanism, so the device that needs a kind of solution above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat abstractor in the oil-immersed transformer to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the heat dissipation device in the oil-immersed transformer comprises a first radiator, wherein the rear end of the first radiator is fixedly connected with an oil-immersed transformer shell; the first radiator comprises a support, an overheating alarm mechanism and radiating fins, the radiating fins are uniformly arranged on the inner side of the support, and the side end of the overheating alarm mechanism is fixedly connected to the center of the side end face of the support; the overheating alarm mechanism comprises a knob, a sealing ring, a waterproof cover, an air bag and a switch, wherein the outer wall of the side end of the knob is in threaded installation on the inner wall of the sealing ring, the inner wall of the sealing ring is fixedly and hermetically connected to the side wall of the waterproof cover, the lower part of the inner wall of the waterproof cover is slidably installed on the outer wall of the lower part of the air bag, and the side end of the switch is fixedly connected to the center of the side end of the air bag.

Preferably, the rear ends of the support and the radiating fins are fixedly connected to the outer wall of the oil-immersed transformer shell, and the side wall of the waterproof cover and the side wall of the air bag, which are deviated from the sealing ring, are fixedly connected to the center of the side wall of the support.

Preferably, the first radiators are symmetrically arranged on the outer wall of the oil-immersed transformer shell, a second radiator is fixedly arranged on the outer wall of the oil-immersed transformer shell, which deviates from the first radiators, and the internal structure of the first radiators is the same as that of the second radiators.

Preferably, the first radiator further comprises a support plate, the upper walls of the two ends of the support plate are fixedly connected to the lower end of the support, and the radiating fins are uniformly and fixedly connected to the upper wall of the support plate.

Preferably, overheated alarm mechanism still includes threaded rod, helical conductor and hard tube, the one end fixed connection of threaded rod is at the lateral wall center of knob, the knob passes through the threaded rod threaded mounting at the inner wall of sealing ring, the upper end fixed connection of hard tube is at the lower extreme of switch, hard tube and switch fixed connection are passed to helical conductor's one end, the one end fixed connection who deviates from the hard tube is at the lateral wall, the switch passes through helical conductor and external indoor alarm electric connection.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the heat dissipation area of the oil-immersed transformer shell is increased by utilizing the support and the heat dissipation fins, the heat dissipation speed of the oil-immersed transformer shell is accelerated, the conventional heat dissipation function is realized, the support and the heat dissipation fins are reinforced by utilizing the support and the heat dissipation fins, the heat dissipated by the support is absorbed by utilizing the air bag, the expansion and contraction characteristics of the air in the air bag are utilized, the end, positioned in the direction of the sealing ring, of the air bag is close to the direction of the sealing ring by the expansion air bag, when the heat dissipated by the support is overhigh, the air bag drives the switch to extrude one end of the threaded rod, the threaded rod and the switch are mutually extruded, the button of the switch is pressed, the power supply of the alarm in the target working chamber is switched on by the switch, the alarm executes the alarm work, the worker is warned, the worker can know that the heat of the oil, reach the purpose that improves the switch sensitivity of opening with the same reason, reverse twist to twist the knob with the same reason and reduce the sensitivity that the switch opened, with the same reason has changed the sensitivity of high temperature alarm work, has made things convenient for the staff to report to the police after the overheated heat-sinking capability that surpasss first radiator and second radiator of oil-immersed transformer shell, has improved the staff and has known speed to the promptness of maintenance has been improved.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

fig. 2 is a schematic structural view of a first heat sink of the present invention;

fig. 3 is a schematic structural view of the overheating alarm mechanism of the present invention.

In the figure: 1. an oil-immersed transformer housing; 2. a first heat sink; 3. a second heat sink; 4. a support plate; 5. a support; 6. an overheating alarm mechanism; 7. a heat sink; 8. a knob; 9. a threaded rod; 10. a seal ring; 11. a waterproof cover; 12. an air bag; 13. a helical wire; 14. a switch; 15. and (4) hard tubes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: the heat dissipation device in the oil-immersed transformer comprises a first radiator 2, wherein the rear end of the first radiator 2 is fixedly connected with an oil-immersed transformer shell 1; the first radiator 2 comprises a bracket 5, an overheating alarm mechanism 6 and radiating fins 7, wherein the radiating fins 7 are uniformly arranged on the inner side of the bracket 5, and the side end of the overheating alarm mechanism 6 is fixedly connected to the center of the side end face of the bracket 5; the overheating alarm mechanism 6 comprises a knob 8, a sealing ring 10, a waterproof cover 11, an air bag 12 and a switch 14, wherein the outer wall of the side end of the knob 8 is installed on the inner wall of the sealing ring 10 in a threaded mode, the wall of the sealing ring 10 is fixedly and hermetically connected to the side wall of the waterproof cover 11, the lower portion of the inner wall of the waterproof cover 11 is installed on the outer wall of the lower portion of the air bag 12 in a sliding mode, the side end of the switch 14 is fixedly connected to the center of the side end of the air bag 12, the heat dissipation area of the oil-immersed transformer shell 1 is increased through a support 5 and a heat dissipation fin 7, the heat dissipation speed of the oil-immersed transformer shell 1 is accelerated, the conventional heat dissipation function is achieved, the support 5 and the heat dissipation fin 7 are reinforced through a support plate 4, the air bag 12 absorbs heat dissipated by the support 5, the expansion and contraction characteristics of, the air bag 12 drives the switch 14 to extrude one end of the threaded rod 9, the threaded rod 9 and the switch 14 are mutually extruded, a button of the switch 14 is pressed, the power supply of an alarm in a target working chamber is switched on through the switch 14, the alarm executes alarm work and warns workers, so that the workers can know that the heat of the oil-immersed transformer shell 1 exceeds the standard in time, the oil-immersed transformer shell 1 can be screwed by the knob 8 before use, the threaded rod 9 is close to the switch 14 along the inner wall of the sealing ring 10, the aim of improving the opening sensitivity of the switch 14 is achieved by the same principle, the opening sensitivity of the switch 14 is reduced by reversely screwing the knob 8, the sensitivity of high-temperature alarm work is changed by the same principle, and the workers can alarm after the oil-immersed transformer shell 1 is overheated to exceed the heat dissipation capacity of the first radiator 2 and the second radiator 3, the speed of knowing by the staff is improved, and the timeliness of overhauling is improved.

The rear ends of a support 5 and radiating fins 7 are fixedly connected to the outer wall of an oil-immersed transformer shell 1, the side walls of a waterproof cover 11 and an air bag 12 departing from a sealing ring 10 are fixedly connected to the center of the side wall of the support 5, a first radiator 2 is symmetrically installed on the outer wall of the oil-immersed transformer shell 1, the outer wall of the oil-immersed transformer shell 1 departing from the first radiator 2 is fixedly provided with a second radiator 3, the internal structure of the first radiator 2 is the same as that of the second radiator 3, the first radiator 2 further comprises a support plate 4, the upper walls at two ends of the support plate 4 are fixedly connected to the lower end of the support 5, the radiating fins 7 are uniformly and fixedly connected to the upper wall of the support plate 4, an overheating alarm mechanism 6 further comprises a threaded rod 9, a spiral wire 13 and a hard tube 15, one end of the threaded rod 9 is fixedly connected, hard tube 15's upper end fixed connection is at the lower extreme of switch 14, and hard tube 15 and switch 14 fixed connection are passed to the one end of spiral conductor 13, and 13 deviate from the lateral wall of the one end fixed connection of hard tube 15, and switch 14 passes through spiral conductor 13 and external indoor alarm electric connection.

The working principle is as follows: the heat dissipation area of the oil-immersed transformer shell 1 is increased by utilizing the support 5 and the heat dissipation fins 7, the heat dissipation speed of the oil-immersed transformer shell 1 is accelerated, the conventional heat dissipation function is realized, the support 5 and the heat dissipation fins 7 are reinforced by utilizing the support 4, the heat dissipated by the support 5 is absorbed by utilizing the air bag 12, the expansion and contraction characteristics of the air in the air bag 12 are utilized, the end, positioned in the direction of the sealing ring 10, of the air bag 12 is close to the direction of the sealing ring 10 by the expansion air bag 12, when the heat dissipated by the support 5 is overhigh, the air bag 12 drives the switch 14 to extrude one end of the threaded rod 9, the threaded rod 9 and the switch 14 are mutually extruded, the button of the switch 14 is pressed, the power supply of the alarm in the target working chamber is switched on by the switch 14, the alarm executes the alarm work, and, oily formula transformer shell 1 revolves wrong threaded rod 9 through knob 8 before the use, make threaded rod 9 be close to switch 14 direction along sealing ring 10 inner wall, reach the purpose that improves switch 14 and open sensitivity on the same reason, it reduces the sensitivity that switch 14 opened on the same reason to reverse revolving knob 8, the sensitivity of high temperature alarm work has been changed on the same reason, made things convenient for the staff to report to the police behind the heat-sinking capability that oily formula transformer shell 1 is overheated to surpass first radiator 2 and second radiator 3, the staff knows speed has been improved, thereby the timeliness of maintenance has been improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A heat abstractor in oil-immersed transformer, includes first radiator (2), its characterized in that: the rear end of the first radiator (2) is fixedly connected with an oil-immersed transformer shell (1); the first radiator (2) comprises a support (5), an overheating alarm mechanism (6) and radiating fins (7), wherein the radiating fins (7) are uniformly arranged on the inner side of the support (5), and the side end of the overheating alarm mechanism (6) is fixedly connected to the center of the side end face of the support (5); overheat alarm mechanism (6) include knob (8), sealing ring (10), buckler (11), gasbag (12) and switch (14), the inner wall at sealing ring (10) is installed to the side outer wall screw thread of knob (8), the immortal wall fixed seal of sealing ring (10) connects the lateral wall in buckler (11), the inner wall lower part slidable mounting of buckler (11) is at the lower part outer wall of gasbag (12), the side fixed connection of switch (14) is at the side center of gasbag (12).

2. The heat dissipation device in an oil-filled transformer according to claim 1, wherein: the rear ends of the support (5) and the radiating fins (7) are fixedly connected to the outer wall of the oil-immersed transformer shell (1), and the waterproof cover (11) and the air bag (12) are fixedly connected to the center of the side wall of the support (5) deviating from the sealing ring (10).

3. The heat dissipation device in an oil-filled transformer according to claim 1, wherein: the oil-immersed transformer is characterized in that the first radiators (2) are symmetrically arranged on the outer wall of the oil-immersed transformer shell (1), the outer wall of the oil-immersed transformer shell (1) deviating from the first radiators (2) is fixedly provided with the second radiators (3), and the internal structure of the first radiators (2) is the same as that of the second radiators (3).

4. The heat dissipation device in an oil-filled transformer according to claim 1, wherein: the first radiator (2) further comprises a supporting plate (4), the upper walls of the two ends of the supporting plate (4) are fixedly connected to the lower end of the support (5), and the radiating fins (7) are uniformly and fixedly connected to the upper wall of the supporting plate (4).

5. The heat dissipation device in an oil-filled transformer according to claim 1, wherein: overheated alarm mechanism (6) still include threaded rod (9), helical conductor (13) and hard tube (15), the one end fixed connection of threaded rod (9) is at the lateral wall center of knob (8), inner wall at sealing ring (10) is installed through threaded rod (9) screw thread in knob (8), the upper end fixed connection of hard tube (15) is at the lower extreme of switch (14), hard tube (15) and switch (14) fixed connection are passed to the one end of helical conductor (13), deviate from the lateral wall of the one end fixed connection of hard tube (15), switch (14) are through helical conductor (13) and external indoor alarm electric connection.