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صمامهو عنصر تحكم في نظام نقل السوائل عبر خط الأنابيب. يتم استخدامه لتغيير قسم المرور واتجاه التدفق للوسيط. لديها وظائف التحويل ، القطع ، الضبط ، الاختناق ، الفحص ، التحويل أو تخفيف ضغط الفائض.
الصماماتused for fluid control, from the simplest shut-off صمام to the various صمامs used in extremely complex automatic control systems, have a wide range of varieties and specifications, and the nominal diameter of the صمام ranges from extremely small instrument صمامs to large diameters up to 10m. الصماماتfor industrial pipelines. الصمام can be used to control the flow of various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metals and radioactive fluids. الworking pressure of the صمام can be from 1.3х10MPa to 1000MPa ultra-high pressure and working temperature From the ultra-low temperature of -269℃ to the high temperature of 1430℃. الصمام can be controlled by a variety of transmission methods, such as manual, electric, hydraulic, pneumatic, worm gear, electromagnetic, electromagnetic-hydraulic, electric-hydraulic, pneumatic-hydraulic, spur gear, bevel gear drive, etc. ; Under the action of pressure, temperature or other forms of sensing signals, it can act according to the predetermined requirements, or simply open or close without relying on the sensing signals. الصمام relies on the drive or automatic mechanism to make the opening and closing parts lift and slide Move, swing or rotate, thereby changing the size of the flow channel to achieve its control function.
الpurpose of the صمام الصمام is a kind of pipeline accessory, it is a device used to change the section of the passage and the flow direction of the medium, and control the movement of the conveying medium. It has diversion, cut-off, adjustment, throttling, check, diversion or overflow Functions such as pressure relief.
Specifically, the صمام has the following purposes: 1. Cut-off صمام: connect or cut off the medium in each section of the pipeline. Such as gate صمام, globe صمام, ball صمام, plug صمام, diaphragm صمام, butterfly صمام, etc. 2 Regulating صمامs: Regulate the flow and pressure of the medium in the pipeline. Such as throttle صمام, regulating صمام, pressure reducing صمام, safety صمام, etc. 3 Shunt صمام: change the flow direction of the medium in the pipeline, used to distribute, separate or mix the medium. Such as distribution صمامs, three-way plug صمامs, three-way or four-way ball صمامs, traps, etc. Valve classification There are many types of صمامs. With the continuous improvement of the process and performance of various complete sets of equipment, the types of صمامs are still increasing, but in general they can be divided into two categories: automatic صمامs rely on media (liquid, gas, Steam, etc.) a صمام that operates on its own. Such as safety صمامs, check صمامs, pressure reducing صمامs, traps, hydraulic control صمامs, emergency shut-off صمامs, exhaust صمامs, etc.
