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A metal-sealed automatic exhaust pipe of a circuit breaker hydraulic circuit

A hydraulic circuit, metal sealing technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, servo motor components, etc., can solve the problems of complex structure, high energy consumption, low work efficiency, etc., to achieve exhaust efficiency High, reliable exhaust effect, simple structure

Active Publication Date: 2022-07-01
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are the following disadvantages: complex structure, need an external motor to complete the exhaust, high energy consumption, low work efficiency

Method used

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  • A metal-sealed automatic exhaust pipe of a circuit breaker hydraulic circuit
  • A metal-sealed automatic exhaust pipe of a circuit breaker hydraulic circuit
  • A metal-sealed automatic exhaust pipe of a circuit breaker hydraulic circuit

Examples

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Effect test

Embodiment

[0029] like Figure 1 to Figure 8 As shown, it is a metal-sealed automatic exhaust pipe of a hydraulic circuit of a circuit breaker, which is characterized in that it is located on the pressure monitoring module 1 of the hydraulic mechanism of the circuit breaker, and includes a valve body located on the pressure monitoring module 1, and the valve body is provided with The exhaust bolt 24 is provided with an exhaust hole 25 in the exhaust bolt 24. The valve body includes a valve block 2 and a sliding body valve core 3 that can rotate relative to the valve block 2. The sliding body valve core 3 is rotatably connected to a rotary seat 36, which rotates The seat 36 is provided with an external thread for threaded connection with the pressure control module. The valve block 2 is provided with a low pressure oil pipe 5, and the valve block 2 is provided with a mounting hole 21 corresponding to the exhaust bolt 24 and an oil inlet hole 22 corresponding to the low pressure oil pipe 5...

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PUM

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Abstract

The invention discloses a metal-sealed automatic exhaust pipe of a hydraulic circuit of a circuit breaker. Bolts, there are exhaust holes in the exhaust bolts, the valve body includes a valve block and a sliding body spool that can rotate relative to the valve block. There is a diversion ring cavity between the outer side of the sliding body valve core and the valve block, the sliding body valve core is provided with a number of communication holes connecting the diversion ring cavity and the diversion pipeline, and the exhaust hole is provided with The sealing sleeve fitted to the bottom surface of the guide ring cavity; the low-pressure oil pipe is connected to one end of the valve block and is arranged downward from the low-pressure oil pipe, and the guide pipe and the oil pump are connected through a pipe. The advantages of the invention are that the structure is simple, no external power supply is required, and no power failure of the circuit breaker is required, and the circuit breaker can be automatically exhausted when the circuit breaker is electrified, the exhaust efficiency is high, and the exhaust effect is reliable.

Description

technical field [0001] The invention belongs to the technical field of hydraulic systems of electrical equipment circuit breakers, in particular to a metal-sealed automatic exhaust pipe of a circuit breaker hydraulic circuit. Background technique [0002] During the energy storage process of the circuit breaker mechanism, a small amount of nitrogen gas in the energy storage nitrogen cylinder may overflow into the hydraulic oil, so that a certain amount of gas will accumulate on the low pressure oil side of the pump head of the hydraulic oil pump. If the pump head cannot be accumulated in time If the gas is discharged, the oil pump will not be able to press the rated pressure, which will directly cause the motor to press overtime or start frequently. The existing technical solution to solve this defect is to manually loosen the air release bolt on the low pressure oil pipe, and release the gas on the low pressure oil side until the hydraulic oil flows out. The existing metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/044F15B13/02F15B21/00
CPCF15B21/044F15B13/02F15B21/00
Inventor 韩筱慧陈吉张磊徐东辉李晓晗费宇高博陈磊马理想董佳宝
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO
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