সংকোচকারী শিল্পে চাপ চাপ বোঝায় (পি)
ইউনিট ক্ষেত্রের জন্য 1N এর শক্তি 1Pa, যা 1Pa = 1N / ㎡, Pa চাপের মূল ইউনিট। যখন চাপ মানটি বড় হয়, কেপিএ (1 কেপিএ = 1000Pa) এবং এমপিএ (1 এমপিএ = 1000000Pa) উপলব্ধ থাকে।
Ⅰ স্ট্যান্ডার্ড বায়ুমণ্ডলীয় চাপ (এটিএম)
Ⅱ গেজ চাপ এবং পরম চাপ
① The pressure measured with a pressure gauge is the gauge pressure. It is the difference between the pressure in the container and the local atmospheric pressure. It is the pressure measured at the zero point of atmospheric pressure and is expressed by P (G).
② The pressure with absolute vacuum as the zero point is called absolute pressure, which is the sum of the pressure in the container and the local atmospheric pressure, which is expressed by P (A).
The relationship between gauge pressure and absolute pressure: gauge pressure + atmospheric pressure = absolute pressure
Usually the discharge pressure given on the compressor nameplate is the gauge pressure.
Working pressure
Suction and exhaust pressure refers to the pressure of air compressor suction and exhaust
The gas pressure measured at the intake flange of the first-stage cylinder working chamber of the compressor and the exhaust flange of the last-stage cylinder working chamber is called the suction and discharge pressure of the compressor.
In some cases, the discharge pressure of the compressor is also called "back pressure"
The suction and exhaust pressure of the screw air compressor refers to the suction and exhaust pressure of the entire air compressor. Generally speaking, the working pressure of the air compressor refers to the exhaust pressure.
Ⅵ Common pressure unit conversion for air compressor
1MPa (Mpa) = 1000kPa (KPa) = 1000000Pa (Pascal)
1bar (bar) = 0.1MPa
1atm (standard atmospheric pressure) = 0.1013MPa = 1.013bar = 760mmHg = 10.33mH2O
1kgf / cm2 (engineering kilogram force) = 0.981bar = 0.0981Mpa
1psi (এলবি / ইন 2) = 0.07031 কেজিএফ / সেমি 2 = 0.06893 বার = 6.893 কেপিএ
1 এমপিএ = 145psi
পিএসআই (এলবি / ইন 2) প্রতি বর্গ ইঞ্চি পাউন্ড, সাধারণত ইউরোপীয় এবং আমেরিকান ইংলিশ-স্পিকার দেশগুলির পণ্য পরামিতিগুলিতে ব্যবহৃত হয়
সাধারণত বললে, এয়ার কম্প্রেসার শিল্পে "কেজি" "বার" বোঝায়
