CN205246305U - On --spot leak test frock of transformer - Google Patents

Abstract

The utility model provides an on - -spot leak test frock of transformer, include: the storage oil tank who is connected with transformer tank, storage oil tank opens there is the air inlet, connect the transition device that admits air of air inlet, with the air inlet pipeline is connected to the transition device that admits air, with the air inlet pipeline is connected, through the air inlet pipeline with the transition device that admits air is followed the air inlet does it fills into gaseous air pump to store up oil tank. The utility model provides a handy operation of on - -spot leak test frock of transformer accessible realizes the on -the -spot leak test of transformer.

Description

On-site leak testing tooling for transformers

technical field

The utility model relates to the technical field of transformers, in particular to a tool for on-site leak testing of transformers.

Background technique

In order to test the sealing performance of the transformer, it is usually necessary to conduct a leak test on the transformer; the leak test of the transformer is mainly to provide a certain pressure on the transformer oil tank to test the tightness of the transformer oil tank.

Commonly used transformer leak test methods mainly include air pressure leak test and oil tank static pressure leak test; oil tank static pressure leak test is often used in power transformers, mainly by adjusting the liquid level of the transformer oil tank to adjust the leak test pressure; air pressure leak test in distribution It is often used in electric transformers, mainly by adjusting the gas pressure charged into the transformer oil tank to observe the pressure change to judge whether the transformer oil tank is leaking.

At present, the leak test of the transformer is mainly carried out by using a special leak test system when the transformer leaves the factory; however, after the transformer is installed on site, there is often a demand for the leak test of the transformer, which is convenient for the leak test system. The work puts forward a requirement that the operator can operate more conveniently through the leak test system to realize the on-site leak test of the transformer; therefore, providing a convenient and easy-to-operate transformer on-site leak test tool has become a problem to be considered by those skilled in the art.

Utility model content

In view of this, the utility model provides an on-site leak test tool for a transformer, so as to realize the on-site leak test of the transformer through convenient operation.

In order to achieve the above object, the utility model provides the following technical solutions:

An on-site leak testing tool for a transformer, comprising:

An oil conservator connected to the transformer oil tank; the oil conservator has an air inlet;

an intake transition device connected to said intake port;

connecting the intake pipeline with the intake transition device;

An air pump that is connected with the air intake pipeline and charges the oil conservator with gas from the air inlet through the air intake pipeline and the air intake transition device.

Optionally, the oil conservator is provided with a valve for controlling the closing or opening of the air inlet.

Optionally, the intake transition device includes: a connecting flange connecting the valve;

An air injection nozzle arranged on the connecting flange, one end of the air injection nozzle is connected to the air intake pipeline, and the other end is connected to the air inlet.

Optionally, the intake transition device further includes:

It is arranged on the connecting flange to protect the baffle of the gas injection nozzle.

Optionally, the intake transition device further includes:

Set on the connecting flange, it is used to install bolt holes for fastening bolts.

Optionally, the on-site leak test tooling for the transformer also includes:

A barometer for detecting the air pressure of the oil conservator.

Based on the above-mentioned technical solution, the utility model provides transformer on-site leak testing tooling comprising: an oil conservator connected to the transformer oil tank; the oil conservator has an air inlet; an air inlet transition device connected to the air inlet; and The air intake transition device is connected to the intake pipeline; connected to the intake pipeline, through the intake pipeline and the intake transition device, an air pump that fills the oil conservator with gas from the air inlet . Through the transformer on-site leak test tooling provided by the utility model, when the transformer is performing on-site leak test, the gas pumped by the air pump can be input through the air intake pipeline, the air intake transition device, and the air inlet of the oil storage tank by operating the air pump. into the oil conservator to achieve the purpose of adjusting the gas pressure of the transformer oil tank connected to the oil conservator, and then realize the on-site leak test of the transformer by observing the change of the air pressure. Because the transformer on-site leak test tool provided by the utility model can be realized by the air pump The gas is charged into the oil storage tank, and the operation is relatively convenient. Therefore, the on-site leak test tool of the transformer provided by the utility model can realize the on-site leak test of the transformer through portable operation.

Description of drawings

In order to more clearly illustrate the technical solutions in the utility model or the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only For the embodiments of the present utility model, for those skilled in the art, other drawings can also be obtained according to the provided drawings on the premise of not paying creative work.

Fig. 1 is the structural representation of the transformer on-site leak test frock provided by the utility model;

Fig. 2 is a schematic structural view of the intake transition device provided by the present invention.

detailed description

The technical solution in the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Fig. 1 is the structural schematic diagram of the transformer on-site leak test frock provided by the utility model, with reference to Fig. 1, the transformer on-site leak test frock can include:

Transformer oil tank 1;

oil conservator 2;

Air intake transition device 3;

Intake pipeline 4;

air pump 5;

Wherein, the transformer oil tank 1 is connected to the oil conservator 2; optionally, the oil conservator 2 can be placed horizontally above the transformer oil tank 1, and connected to the transformer oil tank 1 through a pipeline; the transformer between the transformer oil tank 1 and the oil conservator 2 The oil flow mode can be as follows: when the transformer oil heats up, the transformer oil flows from the transformer oil tank 1 to the oil storage tank 2; when the transformer oil cools down, the transformer oil flows from the oil storage tank 2 to the transformer oil tank 1;

The oil conservator 2 is provided with an air inlet 21 through which gas can be filled into the oil conservator 2; optionally, the oil conservator 2 can also be provided with a valve to control the closing or opening of the air inlet 21; When the valve is opened, the air inlet 21 is opened accordingly, and gas can be filled into the oil conservator 2 through the air inlet 21; 2 filled with gas;

The intake transition device 3 is a device for realizing the intake transition between the intake pipeline 4 and the oil conservator 2, and the intake transition device 3 can be respectively connected with the air inlet 21 of the oil conservator 2 and the intake pipeline 4, so as to Air intake transition is realized between the oil conservator 2 and the intake pipeline 4;

The air pump 5 is connected to the air intake pipeline 4. The utility model can operate the air pump 5 so that the gas pumped by the air pump 5 is input into the intake pipeline 4, and then transmitted to the air inlet 21 through the air intake transition device 3, and then passed through the air inlet 21. Charge into the oil conservator 2;

After the gas is filled into the oil conservator 2, the gas will flow between the oil conservator 2 and the transformer oil tank 1, so that the gas pressure in the transformer oil tank is adjusted, and it is provided to judge whether the transformer oil tank leaks by observing the change of the air pressure. possible, to achieve the purpose of the transformer on-site leak test.

The transformer on-site leak test tooling provided by the utility model includes: an oil storage tank connected to the transformer oil tank; the oil storage tank has an air inlet; an air inlet transition device connected to the air inlet; The device is connected to the air intake pipeline; connected to the air intake pipeline, through the air intake pipeline and the air intake transition device, an air pump that fills the oil conservator with gas from the air inlet. Through the transformer on-site leak test tooling provided by the utility model, when the transformer is performing on-site leak test, the gas pumped by the air pump can be input through the air intake pipeline, the air intake transition device, and the air inlet of the oil storage tank by operating the air pump. into the oil conservator to achieve the purpose of adjusting the gas pressure of the transformer oil tank connected to the oil conservator, and then realize the on-site leak test of the transformer by observing the change of the air pressure. Because the transformer on-site leak test tool provided by the utility model can be realized by the air pump The gas is charged into the oil storage tank, and the operation is relatively convenient. Therefore, the on-site leak test tool of the transformer provided by the utility model can realize the on-site leak test of the transformer through portable operation.

Optionally, the oil conservator can be provided with a valve to control the closing or opening of the air inlet; the utility model can connect the air inlet pipeline and the valve through a connecting flange;

Correspondingly, Fig. 2 shows a schematic structural diagram of the air intake transition device provided by the present invention. In combination with Fig. 1 and Fig. 2, the air intake transition device may include:

connecting flange 31;

Injection nozzle 32;

Baffle 33;

bolt holes 34;

Wherein, the connecting flange 31 is connected with the valve provided in the oil conservator to control the closing or opening of the air inlet;

The gas injection nozzle 32 is arranged on the connecting flange 31, and one end of the gas injection nozzle 32 is connected with the air inlet pipeline 4, and the other end is connected with the air inlet 21; port 21 connection;

The baffle 33 is arranged on the connecting flange, which can protect the gas injection nozzle 32;

Bolt holes 34 are provided on the connecting flange and can be used for installing fastening bolts.

Based on the air inlet transition device shown in Figure 2, the transformer on-site leak test tooling provided by the utility model can perform the following operations when performing a transformer on-site leak test:

Open the valve of the oil conservator, and the air inlet of the oil conservator will be opened correspondingly; operate the air pump, and the gas pumped by the air pump will be transmitted to the gas injection nozzle through the air inlet pipeline, and the gas injection nozzle will bring the gas to the air inlet of the oil conservator, thereby Realize gas filling into the oil conservator;

After the gas is filled, the valve of the oil conservator can be closed, and the air inlet of the oil conservator will be closed accordingly; then, by removing the fastening bolts set in the bolt holes on the connecting flange, the air inlet transition device is connected to the transformer. Separated to complete the transformer leak test work.

Optionally, in order to check the pressure of the gas that has been charged, the utility model can also be equipped with a barometer to detect the air pressure of the oil conservator;

Based on this, when conducting on-site leak testing of transformers, you can judge whether the inflation can be completed by checking the barometer. The specific process is as follows:

Open the valve of the oil conservator, and the air inlet of the oil conservator will be opened correspondingly; operate the air pump, and the gas pumped out by the air pump will be transmitted to the gas injection nozzle through the air inlet pipeline, and the gas injection nozzle will bring the gas to the air inlet of the oil conservator to realize Gas is filled into the oil conservator;

When the value of the barometer reaches the required value, turn off the air pump, close the valve of the oil conservator, and remove the air intake transition device.

The transformer on-site leak test tool provided by the utility model can realize the on-site leak test of the transformer through portable operation.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related part, please refer to the description of the method part.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. a transformer field leak test frock, is characterized in that, comprising:

The oil conservater being connected with oil tank of transformer; Described oil conservater has air inlet;

Connect the air inlet transition apparatus of described air inlet;

Be connected air inlet pipeline with described air inlet transition apparatus;

Be connected with described air inlet pipeline, by described air inlet pipeline and described air inlet transition apparatus, from describedAir inlet is the air pump that described oil conservater is filled with gas.

2. transformer field leak test frock according to claim 1, is characterized in that described oil storageCabinet is provided with the valve of controlling described inlet close or opening.

3. transformer field leak test frock according to claim 2, is characterized in that described air inletTransition apparatus comprises: the adpting flange that connects described valve;

Be arranged at the gas injection mouthpiece on described adpting flange, one end of described gas injection mouthpiece and described air inlet pipeRoad connects, and the other end is connected with described air inlet.

4. transformer field leak test frock according to claim 3, is characterized in that described air inletTransition apparatus also comprises:

Be arranged on described adpting flange, protect the baffle plate of described gas injection mouthpiece.

5. transformer field leak test frock according to claim 3, is characterized in that described air inletTransition apparatus also comprises:

Be arranged on described adpting flange, for the bolt hole of fastening bolt is installed.

6. transformer field leak test frock according to claim 1, is characterized in that, also comprises:

Detect the air gauge of the air pressure of described oil conservater.