CN213274834U

CN213274834U - Oil level gauge pressure testing device for oil immersed distribution transformer

Info

Publication number: CN213274834U
Application number: CN202022772212.5U
Authority: CN
Inventors: 袁五军; 张艳平; 郑雄; 王爽秋
Original assignee: Liupanshui Xingtai Transformer Co ltd
Current assignee: Liupanshui Xingtai Transformer Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-05-25
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a pressure test device for an oil level gauge of an oil-immersed distribution transformer, which comprises an outer box body, wherein the inner part of the outer box body is fixedly connected with an inner box body through a reinforcing column, the upper end of the outer box body is fixedly connected with an oil level gauge connector, the upper end of the oil level gauge connector is in threaded connection with a fixing cap, one side of the outer box body is fixedly connected with an extension pipe, the upper end of the extension pipe is detachably connected with a pressure gauge, one end of the extension pipe penetrates through the inner wall of the outer box body and is communicated with the inner box body, the other side of the outer box body is fixedly connected with a first air inlet pipe, one end of the first air inlet pipe is detachably connected with a valve, and one end of the valve is detachably connected with a second air inlet pipe, the utility model can rapidly detect whether a pressure release valve has defects, solves, the safety of the operation of the transformer product is ensured.

Description

Oil level gauge pressure testing device for oil immersed distribution transformer

Technical Field

The utility model relates to a transformer technical field specifically is oil-immersed distribution transformer oil level gaugember pressure testing device.

Background

The power transformer is one of important electrical equipment in a power system, once an electrical discharge fault occurs in the power transformer, an electric arc can be generated, the electric arc can decompose transformer insulating oil to generate a large amount of gas, so that the internal pressure of an oil tank is increased rapidly, and due to incompressibility of the transformer insulating oil, if the energy cannot be released in a short time, a series of accidents of equipment damage such as the breakage of the oil tank can be caused.

However, in the prior art, a device for detecting the pressure release valve is not provided, whether the pressure release valve has defects or not can not be detected quickly, and the oil level gauge with the pressure release valve is directly used on a product, so that the stability of the product can not be ensured reliably. Therefore, the pressure testing device for the oil level gauge of the oil immersed distribution transformer is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil-immersed distribution transformer oil level gaugember pressure testing device to propose among the prior art not to the device that pressure release valve detected among the above-mentioned background art of solution, whether the detection pressure release valve that can not be quick has a defect, but directly use the oil level gaugember who takes pressure release valve on the product, the problem of the stability of assurance product that can not be reliable.

In order to achieve the above object, the utility model provides a following technical scheme: oil-immersed distribution transformer oil level gaugember pressure testing device, including outer box, outer box is inside through enhancement post fixedly connected with interior box, outer box upper end fixedly connected with oil level gaugember connector, oil level gaugember connector upper end threaded connection has the locking cap, outer box one side fixedly connected with extension pipe, the extension pipe upper end can be dismantled and be connected with the manometer, the one end of extension pipe run through to outer box inner wall and with interior box intercommunication, the first intake pipe of outer box opposite side fixedly connected with, first intake pipe one end can be dismantled and be connected with the valve, the one end of valve can be dismantled and be connected with the second intake pipe, the other end of first intake pipe runs through to outer box inside and communicate with interior box, the utility model discloses a.

Preferably, the quantity of oil level gaugember connector is provided with the one end that multiunit and multiunit oil level gaugember connector run through to outer box inside and with interior box intercommunication.

Preferably, fixing seats are welded at four corners of the lower end face of the outer box, and bolt holes are formed in the lower end face of each fixing seat.

Preferably, the number of the reinforcing columns is provided with a plurality of groups.

Preferably, the inner wall of the upper end surface of the oil level indicator connector is provided with an internal thread.

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

the utility model discloses a whether can the short-term test pressure release valve have the defect, solved the defect that originally does not have the detection, guaranteed that the oil level gaugember does not have gas leakage in the product operation, and the safety of transformer product operation has been guaranteed to the normal behavior of pressure release.

Drawings

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

FIG. 2 is a schematic bottom plan view of the fixing base of the present invention;

fig. 3 is a schematic view of the fixing cap of the present invention.

In the figure: 1. an inner box body; 2. a reinforcement column; 3. a fixed seat; 4. an outer case; 5. an extension pipe; 6. a pressure gauge; 7. a fixing cap; 8. an oil level gauge connection head; 9. a first intake pipe; 10. a second intake pipe; 11. a valve; 12. bolt holes.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: the oil-immersed distribution transformer oil level gauge pressure testing device comprises an outer box body 4, wherein an inner box body 1 is fixedly connected inside the outer box body 1 through a reinforcing column 2, an oil level gauge connector 8 is fixedly connected to the upper end of the outer box body 4, a fixing cap 7 is in threaded connection with the upper end of the oil level gauge connector 8, an extension pipe 5 is fixedly connected to one side of the outer box body 4, a pressure gauge 6 is detachably connected to the upper end of the extension pipe 5, one end of the extension pipe 5 penetrates through the inner wall of the outer box body 4 and is communicated with the inner box body 1, a first air inlet pipe 9 is fixedly connected to the other side of the outer box body 4, one end of the first air inlet pipe 9 is detachably connected with a valve 11, one end of the valve 11 is detachably connected with a second air inlet pipe 10, and the other end of the first;

the one end that oil level gaugember connector 8's quantity was provided with multiunit and multiunit oil level gaugember connector 8 runs through to outer box 4 inside and communicate with interior box 1, and multiunit oil level gaugember connector 8 can carry out the detection of multiunit pressure release valve, has improved detection efficiency, terminal surface four corners position has all welded fixing base 3 under outer box 4, bolt hole 12 has been seted up to terminal surface under 3 fixing base, and it is fixed to have made things convenient for the installation of external box 4, the quantity of enhancement post 2 is provided with the multiunit, has improved the intensity of outer box 4 and interior box 1, avoids taking place the deformation, the internal thread has been seted up to the up end inner wall of oil level gaugember connector 8, has made things convenient for.

Specifically, during the use, at first unscrew fixing cap 7, install the oil level gaugember on oil level gaugember connector 8, then be connected second intake pipe 10 with the air supply line, open valve 11 again, make gas get into in interior box 1, then observe manometer 6 pointer reading, whether the malfunction of the pressure release valve in the oil level gaugember is simultaneously examined, when the table pointer reaches the specified value, observe whether the pressure release valve in the oil level gaugember moves, whether the action is normal, after the inspection finishes, slowly reduce the pressure of filling gas, when reducing to the specified value, whether the pressure release valve in the inspection oil level gaugember resets, discharge gas after all qualified, then demolish the oil level gaugember, and multiunit oil level gaugember connector 8 can realize detecting multiunit oil level gaugember.

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. Oil-immersed distribution transformer oil level gaugember pressure testing device, including outer box (4), its characterized in that: the inner part of the outer box body (4) is fixedly connected with an inner box body (1) through a reinforcing column (2), the upper end of the outer box body (4) is fixedly connected with an oil level gauge connector (8), the upper end of the oil level gauge connector (8) is in threaded connection with a fixing cap (7), an extension pipe (5) is fixedly connected with one side of the outer box body (4), the upper end of the extension pipe (5) is detachably connected with a pressure gauge (6), one end of the extension pipe (5) penetrates through the inner wall of the outer box body (4) and is communicated with the inner box body (1), the other side of the outer box body (4) is fixedly connected with a first air inlet pipe (9), one end of the first air inlet pipe (9) is detachably connected with a valve (11), one end of the valve (11) is detachably connected with a second air inlet pipe (10), the other end of the first air inlet pipe (9) penetrates into the outer box body (4) and is communicated with the inner box body (1).

2. The oil-filled distribution transformer oil level indicator pressure testing device of claim 1, characterized in that: the oil level gauge connectors (8) are arranged in a plurality of groups, and one ends of the oil level gauge connectors (8) penetrate through the inner part of the outer box body (4) and are communicated with the inner box body (1).

3. The oil-filled distribution transformer oil level indicator pressure testing device of claim 1, characterized in that: all welding fixing bases (3) in the four-angle positions of the lower end face of the outer box body (4), and bolt holes (12) are formed in the lower end face of each fixing base (3).

4. The oil-filled distribution transformer oil level indicator pressure testing device of claim 1, characterized in that: the number of the reinforcing columns (2) is provided with a plurality of groups.

5. The oil-filled distribution transformer oil level indicator pressure testing device of claim 1, characterized in that: and the inner wall of the upper end surface of the oil level gauge connector (8) is provided with internal threads.