CN215496307U

CN215496307U - Vacuum oil injection pipeline system

Info

Publication number: CN215496307U
Application number: CN202121837736.6U
Authority: CN
Inventors: 王军; 陈铭; 张柱; 毕纪强; 杨圣军
Original assignee: Anhui Guangsheng Vacuum Technology Co ltd
Current assignee: Anhui Guangsheng Vacuum Technology Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-01-11
Anticipated expiration: 2031-08-05

Abstract

The utility model relates to a vacuum oil injection pipeline system which comprises a first vacuum tower and a tower base, wherein a first main vacuum valve and a first lifting base vacuum valve are uniformly arranged on the periphery of the top of the first vacuum tower, the first main vacuum valve is positioned at the top of the first lifting base vacuum valve and is used for connecting a vacuum pumping interface of a vacuum unit, the first lifting base vacuum valve is used for connecting a lifting base pipe orifice of a transformer, a first liquid level observation window is vertically arranged on a tank body of the first vacuum tower, a bottom inner cavity of the first vacuum tower is connected with an inner cavity of the tower base through an isolation valve, the bottom of the tower base is arranged at the top of the transformer, an auxiliary interface is arranged at the lower part of the tank body of the tower base, and a second liquid level observation window is vertically arranged on the tank body of the tower base. The full oil in the transformer can be judged through the liquid level observation window in the oil injection process, the vacuum oil injection efficiency of the large power transformer is greatly improved, the whole-process vacuum oil injection is ensured, and the potential safety hazard is reduced.

Description

Vacuum oil injection pipeline system

Technical Field

The utility model relates to the technical field of transformer maintenance, in particular to a vacuum oil injection pipeline system.

Background

The vacuum oil injection mode of the existing large power transformer is as follows: the vacuum unit is connected through a vacuumizing interface on the side surface of the transformer box body, and oil is injected from the bottom of the transformer box body while vacuumizing is performed. When the oil level inside the transformer is close to the vacuumizing interface, the oil injection must be stopped, otherwise, the transformer oil is sprayed out of the vacuum unit, and production accidents are caused. The oil in the residual space inside the transformer can be filled in the lifting seat of the large-scale power transformer through the oil filling of the oil conservator, and the efficiency is very low.

When oil is subsequently supplemented, the oil can only be supplemented to the oil conservator and then flows into a low liquid level area, and the efficiency is very low. And because the vacuum pumping can not be continuously performed, bubbles can be left in corners in the lifting seat of the large power transformer during oil supplement, and a corresponding cover plate on the lifting seat needs to be detached for exhausting. During exhaust, oil needs to flow out to determine that the gas is exhausted. This operation causes oil leakage and has a safety hazard.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a vacuum oil injection pipe system to solve the above-mentioned problems encountered in the background art.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides a vacuum oil injection pipeline system, includes first vacuum tower and tower seat, the top periphery of first vacuum tower evenly is equipped with first main evacuation valve and first rising seat evacuation valve, first main evacuation valve is located the top of first rising seat evacuation valve, first main evacuation valve is used for connecting the evacuation interface of vacuum unit, first rising seat evacuation valve is used for connecting the rising seat mouth of pipe of transformer, vertically install first liquid level observation window on the jar body of first vacuum tower, the bottom inner chamber of first vacuum tower is connected through the inner chamber of isolation valve with the tower seat, the top at the transformer is installed to the bottom of tower seat, the jar body lower part of tower seat is equipped with supplementary interface, vertically install second liquid level observation window on the jar body of tower seat.

In the above scheme, the first liquid level observation window and the second liquid level observation window are both transparent strip-shaped structures.

In the above scheme, the first main vacuum-pumping valve is a vacuum ball valve, and the first main vacuum-pumping valve is connected with the vacuum-pumping interface of the transformer through a vacuum quick connector.

In the scheme, the device further comprises a second vacuum tower, a second main vacuumizing valve and a second lifting seat vacuumizing valve are arranged on the periphery of the tank body of the second vacuum tower, the first main vacuumizing valve is connected with a vacuumizing interface of the transformer through the second main vacuumizing valve, and the first lifting seat vacuumizing valve is connected with a lifting seat pipe orifice of the transformer through the second main vacuumizing valve.

Furthermore, the bottom of the second vacuum tower is fixed with a support leg which is fixed on the top of the transformer.

In the above scheme, the lifting lug is fixed at the top of the first vacuum tower.

Compared with the prior art, the utility model has the beneficial effects that: the first vacuum tower is connected through the vacuum unit, the whole power transformer is vacuumized, the vacuum pipeline of the first lifting seat vacuumizing valve is connected to the top of the interface of each lifting seat, and the whole oil injection process is guaranteed to be in a vacuumizing state. And the full oil in the transformer can be judged through the liquid level observation window in the oil injection process, so that the vacuum oil injection efficiency of the large power transformer is greatly improved, the whole-process vacuum oil injection is ensured, and the potential safety hazard is reduced.

Drawings

The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:

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

FIG. 2 is a schematic view of the structure of a second vacuum tower according to the present invention.

Reference numbers in the figures: 1-a first vacuum column; 11-a first main vacuum-pumping valve; 12-a first elevated seat vacuum valve; 13-a first liquid level observation window; 14-a lifting lug; 2-a tower base; 21-an auxiliary interface; 22-a second liquid level viewing window; 23-an isolation valve; 3-a second vacuum column; 31-a second main vacuum-pumping valve; 32-a second elevated seat vacuum-pumping valve; 33-support leg.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described in detail with reference to the attached drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution to which the present invention relates.

According to the technical scheme of the utility model, a plurality of alternative structural modes and implementation modes can be provided by a person with ordinary skill in the art without changing the essential spirit of the utility model. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.

The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples.

Embodiment 1, as shown in fig. 1, a vacuum oil injection pipeline system includes a first vacuum tower 1 and a tower base 2, a first main vacuum-pumping valve 11 and a first elevated base vacuum-pumping valve 12 are uniformly arranged on the periphery of the top of the first vacuum tower 1, a plurality of first main vacuum-pumping valves 11 and a plurality of first elevated base vacuum-pumping valves 12 are arranged as required, and the first main vacuum-pumping valve 11 is located on the top of the first elevated base vacuum-pumping valve 12. The first main vacuumizing valve 11 is used for being connected with a vacuumizing interface of a vacuum unit and vacuumizing a large transformer, and the first lifting seat vacuumizing valve 12 is used for being connected with a lifting seat pipe orifice of the transformer, is connected to a lifting seat and pumps oil into the pipe orifice of the lifting seat.

As a preferred scheme, the first main vacuum-pumping valve 11 is a vacuum ball valve, and the first main vacuum-pumping valve 11 is connected with a vacuum-pumping interface of a transformer through a vacuum quick coupler, so that a vacuum pump in a vacuum unit can be conveniently connected.

A first liquid level observation window 13 is vertically installed on a tank body of the first vacuum tower 1, an inner cavity at the bottom of the first vacuum tower 1 is connected with an inner cavity of the tower base 2 through an isolation valve 23, and after oil enters an inner cavity of the first vacuum tower 1, the oil can enter the inner cavity of the tower base 2 due to gravity. The bottom of tower seat 2 is installed at the top of transformer, compares in current evacuation oiling, installs at the top and compares in the side stability of installing large-scale transformer higher. The lower part of the tank body of the tower base 2 is provided with an auxiliary interface 21, the auxiliary interface 21 is used for butting large transformers of different types, and the large transformers can be directly connected through a steel wire hose to be vacuumized and oil in an inner cavity can also be extracted.

The second liquid level observation window 22 is vertically installed on the tank body of the tower base 2, and the first liquid level observation window 13 and the second liquid level observation window 22 are both transparent strip-shaped structures. Through having configured the liquid level observation window on first vacuum tower 1 and tower seat 2, can look over when vacuum oiling, whether the oil tank of tower body inner chamber is inside to be filled up.

In addition, a lifting lug 14 is fixed on the top of the first vacuum tower 1, and the vacuum oil injection pipeline system can be lifted to the top of a large-scale transformer through the lifting lug 14 for installation and fixation.

When the large transformer is filled with oil in vacuum, the oil level can be directly pumped into the tower base 2 at the lower part of the first vacuum tower 1, when the oil level is seen from the second liquid level observation window 22, the main body of the oil tank is full of transformer oil, the isolation valve 23 above the tower base 2 needs to be closed, then the first liquid level observation window 13 at the upper part of the first vacuum tower 1 is observed, and when the liquid level is seen, all rising bases of the large transformer are full of transformer oil, and valves on pipe orifices of all first rising base vacuum pumping valves 12 need to be closed. Thus, vacuum oil injection is completed in one step, the whole process is in a high vacuum environment, and oil injection is completed satisfactorily.

The number of the first main vacuum-pumping valves 11 and the first lifting seat vacuum-pumping valves 12 configured in the first vacuum tower 1 is large, and when the large-scale transformer does not need too many vacuum-pumping interfaces, the corresponding valves are closed.

The first vacuum tower 1 is connected through a vacuum unit to vacuumize the whole power transformer, and the vacuum pipeline of the first lifting seat vacuumizing valve 12 is connected to the top of the interface of each lifting seat, so that the whole oil injection process is guaranteed to be in a vacuumizing state. And the full oil in the transformer can be judged through the liquid level observation window in the oil injection process, so that the vacuum oil injection efficiency of the large power transformer is greatly improved, the whole-process vacuum oil injection is ensured, and the potential safety hazard is reduced.

Example 2, referring to fig. 2, on the basis of example 1, the above scheme further includes a second vacuum tower 3. A second main vacuum-pumping valve 31 and a second lifting seat vacuum-pumping valve 32 are arranged on the periphery of the tank body of the second vacuum tower 3, the first main vacuum-pumping valve 11 is connected with a vacuum-pumping interface of the transformer through the second main vacuum-pumping valve 31, and the first lifting seat vacuum-pumping valve 12 is connected with a lifting seat pipe orifice of the transformer through the second main vacuum-pumping valve 31. Because the second lifting seat vacuum-pumping valves 32 are provided with a plurality of second lifting seat vacuum-pumping valves, the second lifting seat vacuum-pumping valves are distributed on the periphery of the tank body of the second vacuum tower 3, and can be connected with more lifting seat interfaces to perform vacuum oil injection on more large transformers.

As a preferred solution, the second vacuum tower 3 has a leg 33 fixed to the bottom thereof, and the leg 33 is fixed to the top of the transformer. The supporting legs 33 can be triangular supporting frames or four-corner supporting frames, and are fixed at the top of the transformer through the supporting legs 33, so that the stability of the second vacuum tower 3 is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A vacuum oil injection pipeline system is characterized in that: comprises a first vacuum tower (1) and a tower seat (2), wherein the periphery of the top of the first vacuum tower (1) is uniformly provided with a first main vacuum-pumping valve (11) and a first lifting seat vacuum-pumping valve (12), the first main vacuum-pumping valve (11) is located on top of the first elevated seat vacuum-pumping valve (12), the first main vacuum-pumping valve (11) is used for connecting a vacuum-pumping interface of a vacuum unit, the first lifting seat vacuum-pumping valve (12) is used for connecting a lifting seat pipe orifice of a transformer, a first liquid level observation window (13) is vertically arranged on the tank body of the first vacuum tower (1), the bottom inner cavity of the first vacuum tower (1) is connected with the inner cavity of the tower base (2) through an isolation valve (23), the bottom of the tower base (2) is arranged at the top of the transformer, the lower part of the tank body of the tower base (2) is provided with an auxiliary interface (21), and a second liquid level observation window (22) is vertically arranged on the tank body of the tower seat (2).

2. The vacuum oil injection pipe system according to claim 1, wherein: the first liquid level observation window (13) and the second liquid level observation window (22) are both transparent strip-shaped structures.

3. The vacuum oil injection pipe system according to claim 1, wherein: the first main vacuum-pumping valve (11) is a vacuum ball valve, and the first main vacuum-pumping valve (11) is connected with a vacuum-pumping interface of the transformer through a vacuum quick coupler.

4. The vacuum oil injection pipe system according to claim 1, wherein: still include second vacuum tower (3), the jar body periphery of second vacuum tower (3) is equipped with second owner's evacuation valve (31) and second and rises seat evacuation valve (32), first owner's evacuation valve (11) are connected with the evacuation interface of transformer through second owner's evacuation valve (31), first rising seat evacuation valve (12) are connected with the rising seat pipe socket of transformer through second owner's evacuation valve (31).

5. The vacuum oil injection pipeline system according to claim 4, wherein: and a support leg (33) is fixed at the bottom of the second vacuum tower (3), and the support leg (33) is fixed at the top of the transformer.

6. The vacuum oil injection pipe system according to claim 1, wherein: a lifting lug (14) is fixed at the top of the first vacuum tower (1).