Pretreatment device and pretreatment method for transformer oil

A pretreatment device and transformer oil technology, applied in the preparation of test samples, etc., can solve problems such as low efficiency, large nitrogen consumption, waste, etc., and achieve the effects of saving usage, reducing test costs, and quick preparation

Active Publication Date: 2014-03-05
STATE GRID CORP OF CHINA +1
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  • Abstract
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Problems solved by technology

The current pretreatment process mainly uses nitrogen to stir and bubble the original oil sample, which

Method used

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  • Pretreatment device and pretreatment method for transformer oil

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[0035] The present invention will be further described in detail below in conjunction with the drawings.

[0036] Such as figure 1 , The present invention provides a transformer oil pretreatment device, the device includes a solenoid valve, a ball valve 15, an oil tank 9, an oil cylinder 10, a circulating pump 11, a vacuum pump 12, an oil and gas separation chamber 13, a pressure sensor 14, a stepping motor 16, Air and nitrogen interface, oil inlet and oil outlet; the oil inlet is connected to the oil tank 9, the oil cylinder 10 and the circulating pump 11 through a cross 22; the oil cylinder 10 is separated from the oil tank 9, oil and gas The chamber 13 and the pressure sensor 14 are respectively connected, the ball valve 15 is arranged between the oil tank 9 and the oil cylinder 10; the piston of the oil cylinder 10 is fixedly connected with the stepping motor 16 through a mechanical device, and the bottom of the piston The oil outlet is connected; the oil and gas separation ...

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Abstract

The invention provides a pretreatment device and a pretreatment method for transformer oil. The pretreatment device comprises an electromagnetic valve, a ball valve, an oil tank, an oil cylinder, a circulating pump, a vacuum pump, an oil-gas separation chamber, a pressure sensor, a stepping motor, an air and nitrogen interface, an oil inlet and an oil outlet, wherein the oil inlet is connected with the oil tank, the oil cylinder and the circulating pump through four-way pieces, the oil cylinder is respectively connected with the oil tank, the oil-gas separation chamber and the pressure sensor, the ball valve is arranged between the oil tank and the oil cylinder, a piston of the oil cylinder is fixedly connected with the stepping motor through a mechanical device, the bottom of the piston is connected with the oil outlet, and the oil-gas separation chamber is connected with the air and nitrogen interface, and connected with the vacuum pump through the electromagnetic valve. According to the pretreatment device and the pretreatment method, the transformer oil is pretreated by introducing three degassing methods such as vacuum atomization degassing, air cleaning and nitrogen cleaning, so that the deficiency of cleaning and degassing effects of various methods can be made up, and residual gases dissolved in original transformer oil can be eluted efficiently.

Description

technical field [0001] The invention relates to a pretreatment device and method, in particular to a transformer oil pretreatment device and method. Background technique [0002] The determination of the content of dissolved gas components in transformer oil is one of the very important detection items in the power system, and it is an effective means to judge the latent fault of the equipment during the factory inspection and operation of the transformer. As an instrument for real-time monitoring of the content of dissolved gas components in transformer oil, oil chromatography online monitoring equipment has been widely used throughout the country, and the quality of its measurement results directly affects the safe operation of transformers. At present, power systems usually use standard oil samples to calibrate, verify and detect oil chromatography on-line monitoring equipment. The standard oil sample is configured on the basis of pretreatment of the original oil sample....

Claims

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Application Information

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IPC IPC(8): G01N1/34
Inventor 卢冰张军王斯琪周玮付济良王旭齐聪陈习文
Owner STATE GRID CORP OF CHINA
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