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szelepa csővezeték folyadék szállító rendszerének vezérlő eleme. A közeg átjárási szakaszának és áramlási irányának megváltoztatására szolgál. Funkciói: eltérítés, levágás, beállítás, fojtás, ellenőrzés, eltérítés vagy túlcsordulás csökkentése.
Szelepekused for fluid control, from the simplest shut-off szelep to the various szeleps used in extremely complex automatic control systems, have a wide range of varieties and specifications, and the nominal diameter of the szelep ranges from extremely small instrument szeleps to large diameters up to 10m. Szelepekfor industrial pipelines. Aszelep 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. Aworking pressure of the szelep 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℃. Aszelep 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. Aszelep 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.
Apurpose of the szelep Aszelep 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 szelep has the following purposes: 1. Cut-off szelep: connect or cut off the medium in each section of the pipeline. Such as gate szelep, globe szelep, ball szelep, plug szelep, diaphragm szelep, butterfly szelep, etc. 2 Regulating szeleps: Regulate the flow and pressure of the medium in the pipeline. Such as throttle szelep, regulating szelep, pressure reducing szelep, safety szelep, etc. 3 Shunt szelep: change the flow direction of the medium in the pipeline, used to distribute, separate or mix the medium. Such as distribution szeleps, three-way plug szeleps, three-way or four-way ball szeleps, traps, etc. Valve classification There are many types of szeleps. With the continuous improvement of the process and performance of various complete sets of equipment, the types of szeleps are still increasing, but in general they can be divided into two categories: automatic szeleps rely on media (liquid, gas, Steam, etc.) a szelep that operates on its own. Such as safety szeleps, check szeleps, pressure reducing szeleps, traps, hydraulic control szeleps, emergency shut-off szeleps, exhaust szeleps, etc.
