Energy accumulator with air leakage alarm apparatus and hydraulic operating mechanism

An alarm device, a gas leakage technology, applied in the direction of actuator accumulator, fluid pressure actuating device, fluid pressure actuating system testing, etc. Effect

Active Publication Date: 2015-01-21
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an accumulator with a gas leakage alarm device to solve the problems in the prior art that there is a lag in the discovery of gas leakage and that it will affect the work of the circuit breaker; at the same time, the present invention also provides a A hydraulic operating mechanism using the accumulator

Method used

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  • Energy accumulator with air leakage alarm apparatus and hydraulic operating mechanism
  • Energy accumulator with air leakage alarm apparatus and hydraulic operating mechanism

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Embodiment Construction

[0019] An embodiment of an accumulator with a gas leakage alarm device in the present invention is as Figure 1~Figure 2 As shown, it includes the accumulator cylinder 1 with plugging structures at both axial ends and the piston 2 arranged in the accumulator cylinder 1. The piston 2 divides the accumulator cylinder 1 into left and right two parts. There are two chambers, which are high-pressure oil chamber 31 and pre-inflated chamber 32 respectively. The accumulator also includes a piston displacement detection device for detecting the displacement of the piston 2, and the piston displacement detection device includes a contact rod 4 fixed on the piston 2 and a right end of the accumulator cylinder 1 Magnetic proximity switches on plugging structures.

[0020] The feeler rod 4 includes a threaded end provided with an external thread and an overhang end provided with a flange 41. The right end surface of the piston 2 is provided with a threaded hole corresponding to the thread...

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Abstract

The invention relates to an energy accumulator with an air leakage alarm apparatus and a hydraulic operating mechanism. The energy accumulator with the air leakage alarm apparatus comprises an energy accumulator cylinder and a piston arranged in the energy accumulator cylinder, a pre-inflated cavity is formed in the energy accumulator cylinder through division by the piston, and a piston displacement detection device used for detecting the displacement of the piston is arranged at the end, close to the pre-inflated cavity, of the energy accumulator. As the pressure in the pre-inflated cavity will be reduced after air in the pre-inflated cavity is leaked, the piston can correspondingly move, the position of the piston can be detected through the piston displacement detection device accordingly, and air leakage conditions are accordingly leant in time; in addition, an alarm position can be set, if it is detected that the piston moves to the set alarm position, it is indicated that the air of the pre-inflated cavity is leaked, and overhauling is needed; compared with the prior art, a breaker does not need to be stopped for air pressure detection, and normal work of the breaker is not influenced.

Description

technical field [0001] The invention relates to an accumulator with a gas leakage alarm device and a hydraulic operating mechanism. Background technique [0002] Most of the accumulators in the hydraulic operating mechanism of high-voltage circuit breakers are gas-filled accumulators. The existing accumulators generally include an accumulator cylinder and a piston that guides and moves in the accumulator cylinder. The barrel is divided into left and right chambers, which are high-pressure oil chamber and pre-inflated chamber respectively. When storing energy in the accumulator, fill the pre-charged chamber with gas, then feed high-pressure hydraulic oil into the high-pressure oil chamber, drive the piston in the accumulator to move to the right, and compress the pre-charged gas in the pre-charged chamber. Gas is used to store energy; when the circuit breaker is in normal operation, the rated oil pressure of the hydraulic system is the oil pressure of the high-pressure oil c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B1/04
CPCF15B1/24F15B1/04F15B19/00F15B20/005F15B2201/205
Inventor 张全民王永良李海文雷琴汪陆刘煜
Owner STATE GRID CORP OF CHINA
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