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Electromagnetic differential safety valve

A safety valve and electromagnetic technology, applied in the field of safety valves, can solve the problems of large opening resistance, high spring stiffness and compression requirements, unreliable closing, etc., and achieve the effect of reducing stiffness requirements, avoiding frequent valve jumps, and reliable closing

Active Publication Date: 2014-04-09
HENAN PINGGAO ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electromagnetic differential safety valve for the above problems, which overcomes the problems of high spring stiffness and compression, large opening resistance and unreliable closing of the safety valve.

Method used

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  • Electromagnetic differential safety valve

Examples

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Embodiment Construction

[0013] An example of this electromagnetic differential safety valve is figure 1 As shown, the safety valve is an integrated electromagnetic differential safety valve, which mainly includes a safety valve body, an electromagnetic drive part and an oil drain valve drive part.

[0014] Main part: including valve disc 18, valve seat 4, high pressure interface and low pressure interface. The valve disc 18 adopts a cone valve structure, and a valve core 6 extends along the closing direction of the valve disc 18. The valve core 6 slides and seals through the valve seat 4 and the valve sleeve 5, and the high-pressure port is set on the valve disc. 18 on one side of the opening direction, the low-pressure port is set on the side of the valve disc 18 in the closing direction; the valve seat 4 is provided with a flow port corresponding to the low-pressure port position, and the valve core 6 is provided with a communication port and the valve disc 18; the valve disc 18 is extended along ...

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Abstract

An electromagnetic differential safety valve. A valve flap (18) is provided with a valve core (6) in the extending manner along the closing direction, the valve core (6) runs through a valve seat (4) in the sliding and sealing manners, a high-pressure connector is arranged on one side of the valve flap (18) in the opening direction, and a low-pressure connector is arranged on one side of the valve flap (18) in the closing direction; a circulation port is arranged on the valve seat (4) corresponding to the low-pressure connector, and the valve core (6) is provided with a through path which communicates the circulation port with the valve flap (18); the valve flap (18) is provided with a valve rod (19) in the extending manner along the opening direction, a valve core return spring (10) is mounted on the valve rod (19), and the valve rod (19) is inserted into the valve body (8) in the sliding, sealing and matching manners; a closed chamber which is larger than (6)the opening travel of the valve core is arranged between the tail end of the valve rod (19) and the valve body (8), and the safety valve is provided with a communicating channel which communicates the closed chamber with the low-pressure connector; and an electromagnet opening device used for opening the valve core (6) by pushing is arranged at one end of the valve core (6), and the end of the valve core (6) penetrates out of the valve seat (4). The electromagnetic differential safety valve which is integrated with the function of an oil drain valve presents the characteristics of low requirement on the spring, low opening resistance, and reliability in opening and closing.

Description

technical field [0001] The invention relates to a safety valve, in particular to an electromagnetic differential safety valve which is used for a hydraulic operating mechanism of a high pressure, super high pressure and extra high pressure circuit breaker and integrates the function of an oil discharge valve. Background technique [0002] The safety valve is an important insurance module of the hydraulic operating mechanism of the high-voltage circuit breaker. When the energy storage of the system exceeds the preset pressure or the system pressure is too high due to electrical failure and other reasons, the safety valve can release the pressure in time to stabilize and regulate the pressure. , After the pressure release is completed, the valve needs to be closed in time and reliably to maintain the system pressure and avoid the loss of medium and energy. At present, the traditional safety valve is a mechanical direct-acting safety valve, including a valve body, a valve seat,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/164F16K31/06F16K31/60
CPCF16K31/60F16K31/06F16K17/164F16K31/0655
Inventor 顾根泉孙艳玲王永良李铁杨英福
Owner HENAN PINGGAO ELECTRIC
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