Știri din industrie

Diferite clasificări și utilizări ale supapelor

2021-07-09
The supapăeste o componentă de control în sistemul de transport al fluidelor din conducte. Este folosit pentru a schimba secțiunea de trecere și direcția de curgere a mediului. Are funcțiile de deviere, decupare, reglare, limitare, verificare, deviere sau reducere a presiunii de revărsare.Supapeused for fluid control, from the simplest shut-off supapă to the various supapăs used in extremely complex automatic control systems, have a wide range of varieties and specifications, and the nominal diameter of the supapă ranges from extremely small instrument supapăs to large diameters up to 10m. Supapefor industrial pipelines. The supapă 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. The working pressure of the supapă 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℃. The supapă 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. The supapă 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.

The purpose of the supapă The supapă 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 supapă has the following purposes: 1. Cut-off supapă: connect or cut off the medium in each section of the pipeline. Such as gate supapă, globe supapă, ball supapă, plug supapă, diaphragm supapă, butterfly supapă, etc. 2 Regulating supapăs: Regulate the flow and pressure of the medium in the pipeline. Such as throttle supapă, regulating supapă, pressure reducing supapă, safety supapă, etc. 3 Shunt supapă: change the flow direction of the medium in the pipeline, used to distribute, separate or mix the medium. Such as distribution supapăs, three-way plug supapăs, three-way or four-way ball supapăs, traps, etc. Valve classification There are many types of supapăs. With the continuous improvement of the process and performance of various complete sets of equipment, the types of supapăs are still increasing, but in general they can be divided into two categories: automatic supapăs rely on media (liquid, gas, Steam, etc.) a supapă that operates on its own. Such as safety supapăs, check supapăs, pressure reducing supapăs, traps, hydraulic control supapăs, emergency shut-off supapăs, exhaust supapăs, etc.


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