Mechanical pilot-operated type safety Y-shaped water attack pressure release valve directly driven by blade motor
A vane motor, pilot-operated technology, used in safety valves, mechanical equipment, balance valves, etc., can solve problems such as inability to automatically relieve pressure, achieve fast discharge speed, and broaden application scenarios.
Active Publication Date: 2021-06-01
PIPECHINA SOUTH CHINA CO +2
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Problems solved by technology
[0008] The present invention proposes a mechanical pilot-operated safety Y-type water hammer pressure relief valve directly driven by a vane motor to solve the existing Y-type water hammer pressure relief valve. The problem of not being able to automatically release the pressure
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Embodiment 1
[0031] Embodiment 1: A mechanical pilot-operated safety Y-type water hammer pressure relief valve directly driven by a vane motor, refer to figure 1 , including a handwheel 3, a vane motor 2, a sealing end cover 6, a support cylinder 8 and a Y-shaped main valve body 1 arranged in sequence from top to bottom.
[0032] The bottom of the hand wheel 3 is provided with a special-shaped external thread plug 10, and one end of the special-shaped external thread plug 10 passes through the vane motor 2, the sealing end cover 6, the support cylinder 8 and extends into the Y-shaped main valve body 1 from top to bottom. And with the Y-shaped main valve body 1 seal fit, the special-shaped external thread plug 10 is rotationally connected with the valve cover, and the vane motor 2 is used to drive the special-shaped external thread plug 10 to rotate. A second sealing ring 9 is installed between the support cylinder 8 and the Y-shaped main valve body 1. Both ends of the support cylinder 8 ar...
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The invention relates to the technical field of water attack pressure release valves, in particular to a mechanical pilot-operated type safety Y-shaped water attack pressure release valve directly driven by a blade motor. The valve comprises a hand wheel, the blade motor, a valve deck, a mechanical pilot-operated valve, a special-shaped external thread plug and a Y-shaped main valve body. One end of the special-shaped external thread plug sequentially penetrates through the blade motor and the valve deck from top to bottom, extends into the Y-shaped main valve body and is in sealing fit with the Y-shaped main valve body, the special-shaped external thread plug is rotationally connected with the valve deck, and the blade motor is used for driving the special-shaped external thread plug to rotate; and an inlet of the Y-shaped main valve body is connected to an oil inlet of the mechanical pilot-operated valve through a first stop valve, and an oil outlet of the mechanical pilot-operated valve is connected to an oil outlet of the Y-shaped main valve body. Two oil ports of the blade motor are respectively connected to two working ports of the mechanical pilot-operated valve through pipelines. The mechanical pilot-operated type safety Y-shaped water attack pressure release valve directly driven by the blade motor is provided. The problem that an existing Y-shaped water attack pressure release valve cannot automatically release pressure is solved.
Description
technical field [0001] The invention relates to the technical field of water hammer pressure relief valves, in particular to a mechanical pilot safety Y-type water hammer pressure relief valve directly driven by a vane motor. Background technique [0002] In long-distance oil pipelines, unexpected shutdown of pumps or abnormal opening and closing of valves will cause water hammer, which may cause local overpressure in the pipeline and cause pipe burst accidents. In order to ensure the safe operation of long-distance oil pipelines and related equipment, water hammer pressure relief valves are usually used to release water hammer pressure. [0003] When water hammer occurs in the pipeline, the pressure relief valve can quickly open and release the high-pressure medium, so that the pipeline pressure returns to the normal range, so as to achieve the purpose of protecting the pipeline and the equipment in the pipeline. Therefore, the opening speed of the pressure relief valve in...
Claims
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IPC IPC(8): F16K17/10F16K17/164F16K17/168F16K31/38F16K41/02
CPCF16K17/10F16K17/164F16K17/168F16K31/38F16K41/02
Inventor 田中山许长华杨昌群张旭杨光牛道东王虎斌林武斌王志敏王永飞赵升吨
Owner PIPECHINA SOUTH CHINA CO