Operating principle of electric liquid ammonia emergency shut-off valve
Time: October 6, 2020 11:48:04 Source: Yonglong Valve Reading: zero second
Operating principle of electric liquid ammonia emergency shut-off valve
The electric liquid ammonia emergency shut-off valve has two control modes, one is the angular travel actuator mechanism: the angular travel electric actuator is used with the angular travel valve to realize the valve clack 90 degree rotation to control the fluid connection and throttling of the pipeline (such as the ball valve); The other is the straight travel electric actuator: the straight travel electric actuator is used together with the straight travel valve to realize the up and down movement of the valve disc to control the pipeline fluid on and off. It is usually used on equipment with high degree of automation (such as shut-off valve and stop valve). To put it simply: the electric emergency shut-off valve for liquid ammonia is to use an electric actuator to control the valve, thus realizing the opening and closing of the valve. It can be divided into two parts, the upper part is the electric actuator, and the lower part is the valve.
Operating principle of electric liquid ammonia emergency shut-off valve
The liquid ammonia emergency shut-off valve is usually connected by the electric actuator and the liquid ammonia shut-off valve, and becomes the electric liquid ammonia emergency shut-off valve after installation and commissioning. The electric cut-off valve for liquid ammonia uses electric energy as power to connect the electric actuator to drive the valve, so as to realize the opening and closing and regulating actions of the valve. So as to achieve the purpose of switching or regulating the pipeline medium.
purpose
The driving device of the electric liquid ammonia shut-off valve is a reversible electric motor. The valve core control valve is driven by the rotation of the motor for a certain period of time. AI analog signal control is used to regulate the flow of the pipeline medium. Digital signal control can also be used in specific pipeline environments.
Nature of work
The electric valve for liquid ammonia is usually driven by a motor, which is relatively resistant to voltage shock. The opening of the electric valve for liquid ammonia can be controlled, and the regulating state is open, closed, half open and half closed, which can control the flow of medium in the pipeline, but the solenoid valve can not meet this requirement.
Scope of application
Liquid ammonia emergency shut-off valves are mostly used for remote switch control of storage tank and pipeline flow. They are normally installed at the input and output ends of refrigeration pipelines, and can also be used in liquid pipelines. They are widely used in canned pipelines and sewage treatment pipelines for beverage production.
Switch type
The liquid ammonia emergency shut-off valve is usually driven by a motor. It takes a certain time to complete the opening or closing action to simulate the quantity. It can also be made into a regulated liquid ammonia shut-off valve.
Applicable process
Ammonia station storage tank, oil depot, refrigeration, liquefied gas station.
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