The
ventiilon torujuhtme vedeliku edastussüsteemi juhtkomponent. Seda kasutatakse läbipääsuosa ja keskkonna voolu suuna muutmiseks. Sellel on ümbersuunamise, väljalülitamise, reguleerimise, drosselklapi, kontrolli, ümbersuunamise või ülevoolu rõhu vähendamise funktsioonid.
Ventiilidused for fluid control, from the simplest shut-off ventiil to the various ventiils used in extremely complex automatic control systems, have a wide range of varieties and specifications, and the nominal diameter of the ventiil ranges from extremely small instrument ventiils to large diameters up to 10m. Ventiilidfor industrial pipelines. Theventiil 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. Theworking pressure of the ventiil 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℃. Theventiil 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. Theventiil 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.
Thepurpose of the ventiil Theventiil 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 ventiil has the following purposes: 1. Cut-off ventiil: connect or cut off the medium in each section of the pipeline. Such as gate ventiil, globe ventiil, ball ventiil, plug ventiil, diaphragm ventiil, butterfly ventiil, etc. 2 Regulating ventiils: Regulate the flow and pressure of the medium in the pipeline. Such as throttle ventiil, regulating ventiil, pressure reducing ventiil, safety ventiil, etc. 3 Shunt ventiil: change the flow direction of the medium in the pipeline, used to distribute, separate or mix the medium. Such as distribution ventiils, three-way plug ventiils, three-way or four-way ball ventiils, traps, etc. Valve classification There are many types of ventiils. With the continuous improvement of the process and performance of various complete sets of equipment, the types of ventiils are still increasing, but in general they can be divided into two categories: automatic ventiils rely on media (liquid, gas, Steam, etc.) a ventiil that operates on its own. Such as safety ventiils, check ventiils, pressure reducing ventiils, traps, hydraulic control ventiils, emergency shut-off ventiils, exhaust ventiils, etc.
