Oil-immersed transformer release valve capable of preventing oil oxidation

A technology for oil-immersed transformers and release valves, which is applied in transformer/inductor cooling, valve operation/release devices, valve details, etc. It can solve problems such as poor sealing effect, inability to cut off the oil tank, and up and down movement of the membrane disc, etc., to achieve Good sealing effect, increase the effect of sealing strength

Pending Publication Date: 2022-07-08
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem that the pressure relief valve cannot isolate the environment inside the fuel tank from the outside world when the pressure relief valve is replaced, the pressure relief valve and the fuel tank are connected by bolts, so that the sealing effect between the pressure relief valve and the fuel tank is poor, and the pressure in the fuel tank is between the opening pressure and the closing pressure. Under pressure, the diaphragm will move up and down, and the internal spring will also shrink. The technical problem to be solved: provide an oil-immersed transformer release valve that can increase the service life and prevent oil oxidation.

Method used

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  • Oil-immersed transformer release valve capable of preventing oil oxidation
  • Oil-immersed transformer release valve capable of preventing oil oxidation
  • Oil-immersed transformer release valve capable of preventing oil oxidation

Examples

Experimental program
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Effect test

Embodiment 1

[0028] An oil-immersed transformer release valve that prevents oil oxidation, such as figure 1 , figure 2 , Image 6 and Figure 7 As shown, it includes a valve seat 1, a valve body 2, a sealing ring 204, a diaphragm 3, a first spring 4, an oil outlet pipe 5, a partition mechanism 6, a sealing mechanism 7, a low pressure sensing mechanism 8 and a marking mechanism 9. The valve seat 1 is welded, the upper part of the valve seat 1 is provided with a circular truncated groove 101, the upper part of the valve seat 1 is provided with a cylindrical cavity 102, the cylindrical cavity 102 is located above the circular truncated groove 101, and the upper part of the valve seat 1 is connected with a valve body 2 by bolts. Two left-right symmetrical first rectangular grooves 202 are opened above the body 2, two left-right symmetrical vertical second rectangular grooves 203 are formed above the valve body 2, and the two second rectangular grooves 203 are respectively connected to the a...

Embodiment 2

[0031] On the basis of Example 1, as figure 2 and image 3 As shown, the partition mechanism 6 includes a shaft 601, a turntable 602, a first bevel gear 603, a T-shaped fixing rod 604, a sleeve 605, a screw 606, a special-shaped housing 607, a T-shaped limit block 608 and a second bevel gear 609 , the lower right side of the valve seat 1 is rotatably provided with a rotating shaft 601, the right end of the rotating shaft 601 is fixedly connected with a turntable 602, the left end of the rotating shaft 601 is fixedly connected with a first bevel gear 603, and the left part of the inner side of the valve seat 1 is fixedly connected with a T-shaped fixing rod 604, The right part of the T-shaped fixing rod 604 is rotated with a sleeve 605, the inner surface of the sleeve 605 is provided with threads, a screw 606 is arranged in the sleeve 605, the screw 606 is threaded with the sleeve 605, and the upper part of the screw 606 is fixed with a special-shaped shell 607, the special-s...

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Abstract

The invention relates to the field of transformer pressure relief equipment, in particular to an oil-immersed transformer release valve capable of preventing oil oxidation. The technical problems that when a pressure relief valve is replaced, the environment in an oil tank cannot be isolated from the outside, the pressure relief valve is connected with the oil tank through a bolt, and the sealing effect between the pressure relief valve and the oil tank is poor are solved. An oil-immersed transformer release valve capable of preventing oil oxidation comprises a partition mechanism, a sealing mechanism, a low-voltage induction mechanism, an identification mechanism and the like, the sealing mechanism is arranged on the upper portion of the partition mechanism, the low-voltage induction mechanism is arranged above the sealing mechanism, and the identification mechanism is arranged on the upper portion of the low-voltage induction mechanism. The effect of separating the environment in the oil tank from the external environment is achieved through the separating mechanism, the effect of releasing the pressure in the oil tank is achieved through the low-pressure sensing mechanism, the better sealing effect is achieved through the sealing mechanism, and the effect of limiting the marking rod is achieved through the marking mechanism.

Description

technical field [0001] The invention relates to the field of transformer pressure relief equipment, in particular to an oil-immersed transformer relief valve for preventing oil oxidation. Background technique [0002] Transformer is the basic equipment of power transmission and distribution, which is widely used in various fields of electricity consumption. The transformer will generate heat when it is working. If it is not cooled in time, it will lead to short circuit and burning of the transformer. Therefore, the cooling and insulating properties of insulating oil are used. To cool down the heat generated when the transformer is working, oil-immersed transformers are widely used. When the transformer fails, an arc is generated when the transformer is working, so that the insulating oil is decomposed into gas, resulting in a rapid increase in the pressure in the oil tank. If the internal pressure is released, the transformer will cause damage. Therefore, oil-immersed transf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/04F16K17/164F16K17/168F16K27/02F16K31/50F16K31/53F16K37/00H01F27/14
CPCF16K17/044F16K17/048F16K17/0486F16K17/164F16K17/168F16K27/02F16K31/53F16K31/508F16K37/0008H01F27/14
Inventor 刘强汪蓬吕军在张琳琳吴耕殷凡姣朱宗旺彭坤孙帅张丽丽刘天玉唐宇欣张凯单潇潇
Owner STATE GRID CORP OF CHINA
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