pressure compensation device
A pressure compensation and pressure technology, applied in the field of power equipment, can solve the problems of increased internal pressure, inability to adjust the change of internal pressure, hidden dangers of product safety, etc., to reduce energy consumption, avoid product explosion, and facilitate use.
Active Publication Date: 2021-11-09
XIAN XD POWER CAPACITOR CO LTD +1
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Problems solved by technology
[0003] However, when the above bushing products encounter overvoltage shocks such as operation or lightning, the electric field strength inside the bushing equipment will be too high, resulting in insulation damage. If the insulation damage continues to accumulate, the amount of gas will increase. The internal pressure increases. At this time, the adjustment amount of the dilator can no longer adjust the change of the internal pressure, resulting in the internal pressure of the product being higher than the normal use condition, and the product has serious safety hazards. possible explosion
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[0057]To aspect of the present invention, the objects and effects more clearly understood, reference now be described in conjunction with specific embodiments of the present invention. "Upper" wherein adjective or adverb modifier and "lower", "top" and "bottom", "inner" and use the "outer" are merely for convenience of reference between the plurality of groups relative terms, and are not described limits any particular orientation of the modified term. In the description of the invention, the meaning of "multiple" is two or more than one otherwise indicated.
[0058] like figure 1 , The present invention provides a pressure compensating means, which can be attached to the inner tube of the electrical equipment, the pressure compensating means includes a bellows and a pressure relief assembly 2, wherein:
[0059] like figure 1 with figure 2 , The upper and lower ends of the bellows is sealingly connected to a top cover 11 and bottom cover 12, i.e., the corrugated tube 1, the top co...
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The invention provides a pressure compensation device, which includes a bellows and a pressure release assembly, wherein: the upper and lower ends of the bellows are respectively sealed and connected with a top cover and a bottom cover, and an inflation and deflation mechanism is arranged on the top cover; the pressure release assembly Set in the bellows, the pressure release assembly includes a bracket and a push rod connected to the bracket and capable of moving up and down relative to the bracket. The pressure compensation device of the present invention can not only ensure the tightness of the bellows by setting the inflation and deflation mechanism, but also adjust the internal pressure of the bellows according to the actual ambient temperature, so that the internal pressure of the casing is within a suitable range; The pressure release component can release the internal pressure of the product in time under extreme circumstances to avoid product explosion.
Description
Technical field [0001] The present invention relates to the field of power devices, and in particular, to a pressure compensation device. Background technique [0002] In the electric power equipment, especially high pressure, ultra-high pressure equipment, due to insulation needs, a large amount of sleeve is used as an outer insulation, such as voltage transformers, current transformers, and outline bushing such as the insulator, current transformer and outline bushing. The inside of the above casing product is filled with liquid or gas. When the ambient temperature changes, the pressure inside the sleeve also changes correspondingly, in order to eliminate internal pressure changes, generally use the dilator as an internal pressure adjustment device, when the external temperature rises At high, internal pressure increases, at which time the expansion is contracted to counteract the internal pressure, keep the internal pressure in the appropriate range when the pressure in the sl...
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IPC IPC(8): H01F27/14F16L51/02H01B17/40
CPCF16L51/02H01B17/40
Inventor 吴宇凡
Owner XIAN XD POWER CAPACITOR CO LTD