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Drain valve of oil immersed transformer

A technology of transformer and oil drain valve, which is applied in transformer/inductor cooling, valve details, valve device and other directions, can solve the problems of complicated structure of oil drain valve, inability to charge oil, easy oil leakage, etc., to improve safety. Economical power supply, beautiful appearance, and the effect of reducing the number of power outages

Inactive Publication Date: 2012-04-04
DALIAN NORTH INSTR TRANSFORMER GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the disadvantages of the above-mentioned oil discharge valve in the prior art, such as complex structure, large volume, easy oil leakage, and inability to replenish oil with electricity, the technical problem to be solved by the present invention is to provide a simple structure, good sealing performance, and Oil-immersed transformer oil discharge valve for oil extraction and replenishment with electricity

Method used

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  • Drain valve of oil immersed transformer
  • Drain valve of oil immersed transformer
  • Drain valve of oil immersed transformer

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Embodiment Construction

[0015] Such as figure 1 As shown, an oil-immersed transformer oil drain valve of the present invention has a valve body 2 with a quick connector and an oil drain plug 4, and the base part of the valve body 2 with a quick connector is sealed and installed on the oil drain valve seat of the oil-immersed transformer 5, the internal oil pipeline is connected; the oil drain plug 4 is movably installed on the oil outlet end of the valve body 2 with the quick connector, the ejector rod 41 in the oil drain plug 4 corresponds to the oil outlet of the valve body 2 with the quick connector, and the oil drain The outside of the plug 4 is an oil nozzle 42 that can communicate with the oil outlet of the valve body 2 with a quick connector through a push rod 41 .

[0016] The valve body 2 with a quick connector includes a housing 23, a quick connector 26, a spring 24, a pressure block 22 and a snap ring 21, wherein the pressure block 22, the spring 24 and the quick connector 26 are sequentia...

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Abstract

The invention relates to a drain valve of an oil immersed transformer, which is provided with a valve body with a quick connector and a drain plug, wherein the base part of the valve body with a quick connector is hermetically installed on a drain valve seat of the oil immersed transformer, and internal oil pipelines are communicated; the drain plug is movably installed on the oil outlet end of the valve body with a quick connector, a push rod in the drain plug corresponds to an oil outlet of the valve body with a quick connector, and an oil extraction nipple communicated with the oil outlet of the valve body with a quick connector through the push rod is arranged outside the drain plug. On the basis of the original valve body, the quick connector is added and can be connected with an external oil refilling connector, and oil can be refilled without power off. The oil extraction speed can be controlled, and oil refilling with power on can be realized. The frequency of power off is reduced, and the working efficiency and safe and economic power supply can be improved.

Description

technical field [0001] The invention relates to an oil discharge valve, in particular to an oil-immersed transformer oil discharge valve. Background technique [0002] As a kind of electric energy measurement and relay protection device, oil-immersed transformer is widely used in power systems of various voltage levels. It has the advantages of stable insulation performance, rich operation experience and long service life. [0003] The oil drain valve is an important part of the oil-immersed transformer. The oil drain and charged oil of the oil-immersed transformer are realized by operating the oil drain valve. The structure of the oil discharge valve in the prior art is made up of an oil discharge valve seat, an oil discharge valve core, a sealing gasket, an oil sampling nozzle, and an oil discharge valve cap. Sealing pads are respectively arranged between the valve core and the valve seat, between the oil drain nozzle and the valve core, and between the oil drain valve ca...

Claims

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Application Information

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IPC IPC(8): F16K21/04F16K27/00H01F27/14
Inventor 李涛昌李长库赵国庆哈元亮戴新仁张俊伟张本帅于治平胡戈
Owner DALIAN NORTH INSTR TRANSFORMER GROUP
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