اصل کار نمودار شماتیک و عملکرد شیر برقی پنوماتیکی

اصل کار نمودار شماتیک و عملکرد شیر برقی پنوماتیکی

 

شیر برقی پنوماتیکی یکی از شیرهای برقی است. بسیاری از دوستان هنگام استفاده از آن اصل آن را نمی دانند. امروز به طور کامل اصول کار و نمودار شماتیک شیر برقی پنوماتیک و همچنین عملکرد شیر برقی پنوماتیک را به شما معرفی خواهم کرد.

 

شیر برقی پنوماتیک

Solenoid valve is an industrial equipment controlled by electromagnetism. It is an automatic basic element used to control fluid. It belongs to actuator, and pneumatic solenoid valve is one of them. It controls the movement of the valve body to block or leak out different oil drain holes. The oil inlet hole is normally open. Hydraulic oil will enter different oil drain pipes, and then the piston of the oil cylinder will be pushed by the pressure of the oil in the pneumatic solenoid valve, In this way, the mechanical movement of the whole solenoid valve is controlled by controlling the current of the electromagnet of the pneumatic solenoid valve.

 

Working principle of pneumatic solenoid valve

There are closed cavities in the pneumatic solenoid valve, and through holes are opened at different positions. Each hole of the pneumatic solenoid valve leads to different oil pipes. In the middle of the cavity is the valve, and there are two electromagnets on both sides. The magnetic coil on which side energizes the valve body will be attracted to which side; The pneumatic solenoid valve blocks or leaks different oil drain holes by controlling the movement of the valve body, while the oil inlet hole is normally open, and the hydraulic oil will enter different oil drain pipes, and then the piston of the oil cylinder will be pushed by the pressure of the oil in the pneumatic solenoid valve, so the mechanical movement of the entire solenoid valve will be controlled by controlling the current of the solenoid valve.

 

The working position of the pneumatic solenoid valve (that is, the opening or closing of the solenoid valve) is the position of the valve core of the pneumatic solenoid valve. The electrical conversion module converts the electrical signal into the pneumatic signal, and then the electrical signal input controls the pneumatic output. The solenoid valve executes the release, change or stop of air flow according to the command. Among the solenoid valves, the solenoid control reversing valve is the most important part.

 

The main working principle of the pneumatic solenoid valve is to use the electromagnetic force generated in the solenoid coil to push the valve core switch to achieve the purpose of air flow reversing. That is, in the pneumatic circuit, the solenoid valve controls the reversing valve, which is used to control the airflow passage to pass through, cut off or change the flow direction of compressed air. Direct acting solenoid valve and pilot solenoid valve are divided according to the push and change mode of the reversing valve in the control part of the solenoid valve. The direct-acting solenoid valve can directly use the electromagnetic force to push the reversing of the valve core, while the pilot solenoid valve uses the pilot air pressure output by the electromagnetic pilot to push the reversing of the valve core.

 

عملکرد شیر برقی پنوماتیکی

دو کارکرد اصلی شیر برقی پنوماتیکی وجود دارد: یکی خفه کردن نویز، یا صدای خیلی بلند وقتی که شیر برقی تمام شده است، به خصوص زمانی که شیرهای برقی زیادی وجود دارد. دوم اینکه می تواند از ورود گرد و غبار و سایر ذرات ریز موجود در محیط به داخل شیر برقی جلوگیری کند که ممکن است باعث مسدود شدن حرکت هسته شیر برقی شود و در نتیجه عمر مفید شیر برقی را کاهش دهد.

 

سیم کشی شیر برقی پنوماتیک:

دو فاز را می توان مستقیماً وصل کرد و سه فاز فقط باید با خط صفر و خط زنده وصل شوند.

 

شیر برقی برای کنترل جهت جریان هیدرولیک استفاده می شود. دستگاه های مکانیکی در کارخانه به طور کلی توسط سیلندرهای هیدرولیک کنترل می شوند، بنابراین از شیر برقی استفاده می شود.