Steam stop valve with combined valve clack

Steam stop valve with combined valve clack

The invention discloses a steam stop valve with a combined valve clack, belongs to the technical field of valves, and aims to solve the problems that a high-parameter boiler steam stop valve is short in service life and low in sealing performance. Comprising a valve body, a combined valve clack, a t...

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Hauptverfasser: HOU ZHIYONG, CAI MINGRUI, LIU XIANDONG, ZHANG ZHANYU, WANG QINGYANG, LI NAIAN, LI DEXIN, ZHANG HAORAN, ZHANG SHANGYI, LI MAOYUAN
Format: Patent
Sprache:chi ; eng
Schlagworte:
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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creator HOU ZHIYONG
CAI MINGRUI
LIU XIANDONG
ZHANG ZHANYU
WANG QINGYANG
LI NAIAN
LI DEXIN
ZHANG HAORAN
ZHANG SHANGYI
LI MAOYUAN
description The invention discloses a steam stop valve with a combined valve clack, belongs to the technical field of valves, and aims to solve the problems that a high-parameter boiler steam stop valve is short in service life and low in sealing performance. Comprising a valve body, a combined valve clack, a throttling sleeve and a valve rod, the throttling sleeve is arranged on the drift diameter of a cut-off control port of the valve body, a valve seat structure is arranged on the inner wall of the bottom of the throttling sleeve, the combined valve clack is arranged in the throttling sleeve in a sliding mode through the valve rod, and a medium inlet is communicated with a medium outlet through a circulation hole in the side wall of the throttling sleeve. An airflow sacrifice area is formed between the combined valve clack and the throttling sleeve, the airflow sacrifice area and the valve opening gap form a labyrinth-shaped flow channel, a medium enters the medium outlet through the labyrinth-shaped flow channel, the
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language chi ; eng
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subjects ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
title Steam stop valve with combined valve clack
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