CN209947607U

CN209947607U - Distribution transformer with audible and visual alarm function

Info

Publication number: CN209947607U
Application number: CN201921339820.8U
Authority: CN
Inventors: 关天育; 关天正; 吕鑫; 龙华祥; 申忠伟; 魏仲达; 赵建影; 杨以法; 周长安
Original assignee: Hebei Tianyu 95 Electric Co Ltd
Current assignee: Hebei Tianyu 95 Electric Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-01-14
Anticipated expiration: 2029-08-19

Abstract

The utility model provides a distribution transformer with audible and visual alarm function. The technical scheme improves innovatively around the shell structure of the oil-immersed transformer. Specifically speaking, the utility model discloses utilize protruding exit tube, box and elliptical tube to establish the linker structure on conventional square oil tank basis, will originally all encapsulate partly keeping in this linker of the oil in the oil tank to heat radiating area has effectively been increased. On the basis, the pressure release valve is arranged at the top of the oil conservator by utilizing the inverted U-shaped pipe, so that the potential safety hazard caused by the overpressure problem in the oil conservator is avoided. Meanwhile, the utility model discloses can set up the smoke and feel the alarm on oil tank lateral wall or case lid top, utilize it to detect the burning flue gas for in time play the alarming action through modes such as sound, light when breaking down and leading to the burning. Based on the utility model discloses an above improvement helps promoting oil-immersed transformer's security, has technical layer's positive meaning.

Description

Distribution transformer with audible and visual alarm function

Technical Field

The utility model relates to an oil-immersed transformer technical field, concretely relates to distribution transformer with audible and visual alarm function.

Background

Distribution transformers, referred to as "distribution transformers", are static electrical appliances that transform ac voltage and current to transmit ac power in an electrical distribution system according to the law of electromagnetic induction. The distribution transformer is divided into a non-excitation voltage regulating transformer and an on-load voltage regulating transformer according to different voltage regulating modes; depending on the insulating medium, oil-immersed transformers and dry-type transformers are classified. The iron core and the winding of the oil-immersed transformer are immersed into an oil tank filled with transformer oil together, so that the insulation and cooling effects are achieved.

Because the transformer oil is contained and cooled, the shell of the oil-immersed transformer has direct influence on the overall performance of the transformer. In the prior art, oil-immersed transformers are mainly classified into non-enclosed type oil-immersed transformers, enclosed type oil-immersed transformers and enclosed type oil-immersed transformers according to the type of a housing, wherein the enclosed type is the most extensive. In canned type oil-immersed transformer, casing inside is encapsulated situation, and consequently the radiating effect is relatively poor, and conventional configuration adds the fin on the casing outer wall to increase heat radiating area, however this kind of mode has only increased the heat transfer area of casing with the outside air, and the heat transfer area between inside oil and the casing is still less, consequently is unfavorable for fully realizing the radiating effect. In addition, in a sealed environment in the housing, pressure changes may be caused by conditions such as temperature, and the conventional oil-immersed transformer housing cannot respond to the pressure changes at present, so that certain potential safety hazards exist. In addition, the conventional oil-immersed transformer is difficult to timely send overheating and even fire, so that the alarm function is difficult to realize at the first time.

Disclosure of Invention

The utility model discloses aim at to prior art's technical defect, provide a distribution transformer with audible-visual annunciator function to conventional oil-immersed transformer radiating effect remains the technical problem who improves among the solution prior art.

The utility model discloses another technical problem that solves is that the too big problem of internal pressure can't in time be got rid of to conventional oil-immersed transformer.

The to-be-solved technical problem of the utility model is that conventional oil-immersed transformer does not possess alarming function.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

a distribution transformer with an audible and visual alarm function comprises an oil tank, a tank cover, a base, a low-voltage outlet end, a high-voltage outlet end, an oil conservator, a support, a pipe body, a liquid level meter, an oil discharge pipe, an upper convex outlet pipe, an upper tank body, a lower convex outlet pipe, a lower tank body and an elliptical pipe, wherein the upper end of the oil tank is fixedly connected with the tank cover through a plurality of bolts, the oil tank is positioned on the base, the top end of the tank cover is fixedly connected with the low-voltage outlet end and the high-voltage outlet end, the top end of the tank cover is fixedly connected with the support, the oil conservator is fixedly connected on the support, the oil conservator is mutually communicated with the oil tank through the pipe body, the liquid level meter is fixedly connected on the oil tank, the oil discharge pipe is fixedly connected at the lower end of the side wall of the oil tank, the upper portion, the upper box body is communicated with the lower box body through a plurality of elliptical tubes.

Preferably, the device further comprises a U-shaped pipe and a pressure release valve, wherein two ends of the U-shaped pipe face downwards, one end of the U-shaped pipe is connected to the top of the conservator, and the other end of the U-shaped pipe is connected with the pressure release valve.

Preferably, the fuel tank further comprises a smoke alarm which is fixedly connected to the side wall of the fuel tank or the top end of the tank cover.

Preferably, the box cover further comprises a plurality of ear plates, and the ear plates are fixedly connected to the top end of the box cover.

Preferably, the fuel tank further comprises a box body welded on the side wall of the fuel tank.

In the above technical solution, the oil tank and the tank cover are conventional structures of an oil-immersed transformer, and the interior of the oil tank and the tank cover is used for accommodating an iron core, a winding and transformer oil, wherein the specific structures of modules such as the iron core, the winding and the like are implemented according to general technical knowledge in the field; the base is used for supporting the oil tank; the low-voltage wire outlet end and the high-voltage wire outlet end are also conventional structures of the oil-immersed transformer and are respectively used for wiring; the oil conservator is also a conventional structure of the oil-immersed transformer and is used for containing transformer oil; the bracket is used for supporting the oil conservator; the tube body is used for realizing the input of the transformer from the oil conservator to the oil tank; the liquid level meter is used for observing the oil quantity in the oil conservator; the oil discharge pipe is used for discharging oil in the oil tank; the upper convex pipe, the upper box body, the lower convex pipe, the lower box body and the elliptical pipe form a communicating vessel structure together, and the communicating vessel structure is used for keeping a part of oil originally and completely packaged in the oil tank in the communicating vessel structure, so that the heat dissipation area is increased; the oval pipes are pipelines with oval cross sections, and the heat dissipation area can be fully increased by arranging the oval pipes.

In the preferred technical scheme, a U-shaped pipe and a pressure relief valve structure can be additionally arranged, wherein the U-shaped pipe is used for introducing the pressure in the conservator into the pressure relief valve, and the pressure relief valve is used for relieving the pressure during overpressure; a smoke alarm can be added, wherein the smoke alarm is powered by a battery and is used for giving an alarm in time in sound, light and other modes when combustion is caused by a fault; the ear plate can be additionally arranged to facilitate hoisting; the box body can be additionally provided to facilitate the installation of other detection equipment such as a temperature probe and the like on the surface of the oil tank.

Drawings

FIG. 1 is a perspective view of the present invention from a single viewing angle;

fig. 2 is a right side view of the present invention;

fig. 3 is a perspective view of the present invention from another perspective;

fig. 4 is a front view of the present invention;

in the figure:

1. oil tank 2, case cover 3, base 4, low-voltage outlet terminal

5. High-voltage outlet terminal 6, conservator 7, support 8 and pipe body

9. Liquid level meter 10, oil discharge pipe 11, upper protruding pipe 12 and upper box body

13. Lower protruding pipe 14, lower box 15, elliptical tube 16, U type pipe

17. A pressure release valve 18, a smoke alarm 19, an ear plate 20 and a box body.

Detailed Description

The following will describe in detail specific embodiments of the present invention. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Example 1

A distribution transformer with an audible and visual alarm function is disclosed, as shown in figures 1-4, and comprises an oil tank 1, a tank cover 2, a base 3, a low-voltage outlet terminal 4, a high-voltage outlet terminal 5, an oil conservator 6, a support 7, a pipe body 8, a liquid level meter 9, an oil discharge pipe 10, an upper convex outlet pipe 11, an upper tank body 12, a lower convex outlet pipe 13, a lower tank body 14 and an elliptical pipe 15, wherein the upper end of the oil tank 1 is fixedly connected with the tank cover 2 through a plurality of bolts, the oil tank 1 is positioned on the base 3, the top end of the tank cover 2 is fixedly connected with the low-voltage outlet terminal 4 and the high-voltage outlet terminal 5, the top end of the tank cover 2 is fixedly connected with the support 7, the oil conservator 6 is mutually communicated with the oil tank 1 through the pipe body 8, the liquid level meter 9 is fixedly connected with the oil tank 1, the lower end of the, the tail end of the upper protruding pipe 11 is connected with an upper box body 12, the tail end of the lower protruding pipe 13 is connected with a lower box body 14, and the upper box body 12 is communicated with the lower box body 14 through a plurality of elliptical pipes 15.

The device has the following structural characteristics: the oil tank 1 and the tank cover 2 are conventional structures of oil-immersed transformers, and are used for accommodating an iron core, a winding and transformer oil, wherein the specific structures of modules such as the iron core, the winding and the like are implemented according to common technical knowledge in the field; the base 3 is used for supporting the oil tank 1; the low-voltage wire outlet end 4 and the high-voltage wire outlet end 5 are also conventional structures of the oil-immersed transformer and are respectively used for wiring; the oil conservator 6 is also a conventional structure of the oil-immersed transformer and is used for containing transformer oil; the bracket 7 is used for supporting the oil conservator 6; the tube body 8 is used for realizing the input of the transformer from the oil conservator 6 to the oil tank 1; the liquid level meter 9 is used for observing the oil quantity in the oil conservator 6; the oil drain pipe 10 is used to drain oil in the oil tank; the upper convex pipe 11, the upper box body 12, the lower convex pipe 13, the lower box body 14 and the elliptical pipe 15 jointly form a communicating vessel structure, and the communicating vessel structure is used for keeping a part of oil originally and completely packaged in the oil tank in the communicating vessel structure, so that the heat dissipation area is increased; the oval tubes 15 are pipelines with oval cross sections, and the heat dissipation area can be fully increased by arranging the oval tubes 15.

Example 2

A distribution transformer with an audible and visual alarm function is disclosed, as shown in figures 1-4, and comprises an oil tank 1, a tank cover 2, a base 3, a low-voltage outlet terminal 4, a high-voltage outlet terminal 5, an oil conservator 6, a support 7, a pipe body 8, a liquid level meter 9, an oil discharge pipe 10, an upper convex outlet pipe 11, an upper tank body 12, a lower convex outlet pipe 13, a lower tank body 14 and an elliptical pipe 15, wherein the upper end of the oil tank 1 is fixedly connected with the tank cover 2 through a plurality of bolts, the oil tank 1 is positioned on the base 3, the top end of the tank cover 2 is fixedly connected with the low-voltage outlet terminal 4 and the high-voltage outlet terminal 5, the top end of the tank cover 2 is fixedly connected with the support 7, the oil conservator 6 is mutually communicated with the oil tank 1 through the pipe body 8, the liquid level meter 9 is fixedly connected with the oil tank 1, the lower end of the, the tail end of the upper protruding pipe 11 is connected with an upper box body 12, the tail end of the lower protruding pipe 13 is connected with a lower box body 14, and the upper box body 12 is communicated with the lower box body 14 through a plurality of elliptical pipes 15. The oil conservator further comprises a U-shaped pipe 16 and a pressure release valve 17, wherein two ends of the U-shaped pipe 16 face downwards, one end of the U-shaped pipe 16 is connected to the top of the oil conservator 6, and the other end of the U-shaped pipe 16 is connected with the pressure release valve 17. The fuel tank further comprises a smoke sensing alarm 18, wherein the smoke sensing alarm 18 is fixedly connected to the side wall of the fuel tank 1 or the top end of the tank cover 2. Still include otic placode 19, otic placode 19 has a plurality of, otic placode 19 fixed connection is on the top of case lid 2. The fuel tank further comprises a box body 20, and the box body 20 is welded on the side wall of the fuel tank 1.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A distribution transformer with an audible and visual alarm function is characterized by comprising an oil tank (1), a tank cover (2), a base (3), a low-voltage wire outlet end (4), a high-voltage wire outlet end (5), an oil conservator (6), a support (7), a pipe body (8), a liquid level meter (9), an oil discharge pipe (10), an upper convex outlet pipe (11), an upper tank body (12), a lower convex outlet pipe (13), a lower tank body (14) and an elliptical pipe (15), wherein the upper end of the oil tank (1) is fixedly connected with the tank cover (2) through a plurality of bolts, the oil tank (1) is positioned on the base (3), the top end of the tank cover (2) is fixedly connected with the low-voltage wire outlet end (4) and the high-voltage wire outlet end (5), the support (7) is fixedly connected with the top end of the tank cover (2), the oil conservator (6) is fixedly connected on the support (7), and the oil conserv, fixedly connected with level gauge (9) on oil tank (1), at the lateral wall lower extreme fixedly connected with oil extraction pipe (10) of oil tank (1), be connected with respectively on the lateral wall upper portion of oil tank (1) and lateral wall lower part and go up bulge tube (11) and lower bulge tube (13), there is last box (12) at the end-to-end connection of last bulge tube (11), box (14) under the end-to-end connection of bulge tube (13) has, go up and be linked together through a plurality of elliptical tubes (15) between box (12) and lower box (14).

2. The distribution transformer with the audible and visual alarm function according to claim 1, further comprising a U-shaped pipe (16) and a pressure relief valve (17), wherein both ends of the U-shaped pipe (16) face downward, one end of the U-shaped pipe (16) is connected to the top of the conservator (6), and the other end of the U-shaped pipe (16) is connected with the pressure relief valve (17).

3. The distribution transformer with the audible and visual alarm function according to claim 1, characterized by further comprising a smoke alarm (18), wherein the smoke alarm (18) is fixedly connected to the side wall of the oil tank (1) or the top end of the tank cover (2).

4. The distribution transformer with the audible and visual alarm function according to claim 1, further comprising a plurality of ear plates (19), wherein the ear plates (19) are fixedly connected to the top end of the box cover (2).

5. The distribution transformer with the audible and visual alarm function as claimed in claim 1, further comprising a box body (20), wherein the box body (20) is welded on a side wall of the oil tank (1).