2026-04-10Views：
for compressed air, the user's requirements are also different, so the technical indicators for calibrating compressed air are: pressure, flow, and quality. Every user ultimately needs a certain pressure, a certain flow, a certain quality of compressed air.
01. Selection of working pressure
working pressure, usually called exhaust pressure, working pressure refers to the highest pressure of the air compressor discharge gas; There are many expressions of pressure units. The commonly used working pressure units are: Mpa or bar,1Mpa = 10bar; The pressure unit is usually called: Kg (kg) 1bar = 1Kg. When preparing to buy an air compressor, first determine the working pressure required by the gas end, add a margin of 1-2bar, and then select the pressure of the air compressor.
02. Volume flow
volume flow is usually called exhaust volume. Volume flow refers to the volume of gas discharged from the air compressor per unit time under the required exhaust pressure, which is converted to the intake state; the volume flow unit is: m3/min (Cubic/minute) or L/min (liter/minute),1m3 (cubic) = 1000L (liter); the commonly used flow unit is m3/min (cubic per minute). Should first understand the gas consumption of all gas equipment, the general recommendation is that the air compressor exhaust volume needs to be 1/4 larger than the total gas consumption of gas equipment, which is conducive to overload and the use of additional dust blowing in daily work.
03, the power of the air compressor
the power of the air compressor refers to the nameplate power of the matching drive motor or diesel engine; the unit is KW (kilowatts) or HP (horse/horsepower),1KW is about 1.333HP. The selection power of the air compressor is to meet the working pressure and volume flow conditions, the power supply capacity can meet the use of power.
Power frequency and frequency conversion
power frequency and frequency conversion selection, if the daily working time is more than 20 hours, it is recommended to buy permanent magnet frequency conversion air compressor, permanent magnet plus frequency conversion adjustment machine, primary energy consumption is conducive to energy saving. If the daily working hours are short and the gas consumption time is less, it is recommended to choose a cheap and durable power frequency air compressor. Both have their own advantages and choose according to their own needs.
As the screw oil-free and water-lubricated screw air compressor is a stainless steel single screw main machine for the whole series, it can save more than 15% energy than the secondary dry twin screw and more than 36% energy than the primary twin screw. Oil-free screw air compressor reaches the energy-saving level of oil machine. Avoid frequent and high maintenance of dry screw. Energy saving: Grankering single-screw main engine with high volumetric efficiency is adopted, which has low specific power and is more efficient and energy-saving than twin-screw oil-free air compressors.
The screw air compressor is an oil-injected single-stage twin-screw compressor. It adopts high-efficiency pulley transmission to drive the main engine to rotate for air compression. The compressed air in the main engine is cooled by oil injection. The air and oil mixed gas discharged from the main engine are coarse and fine. Two separate
Shenzhen specializes in air compressor factory, Shenzhen screw air compressor factory air compressor consumption technology and quality is also very related to the quality is not good, the machine function is greatly reduced, easy to various problems attack or use of high life expectancy, etc., so the purchase of air compressor
The ratio of goods to goods is a common occurrence when users purchase "permanent magnet variable frequency air compressor. No matter what brand of "permanent magnet variable frequency air compressor" is to understand the quality of the brand, the use of the site after many years of operation is stable. The "permanent magnet variable frequency air compressor" with stable gas supply is what you really need. Facing the dazzling array of air compressor brands in the market, as a business owner, you can personally visit our company when purchasing, look at our production workshop, and understand the product concept of "granklin Group.
The current of the 1. oil-free air compressor is too high: the common reasons for this failure are as follows: 1. The main engine fails 2. The exhaust pressure is too high 3. The voltage is too low: Generally, the power of the oil-free air compressor is Rated, therefore, according to the public
There are several ways to classify the air compressor: 1, according to the gas transmission, the so-called gas transmission refers to the air compressor work each minute of the exhaust gas conversion to the volume of the suction state, small exhaust volume below 10 cubic meters/minute,
The simplest point is to see whether it contains a frequency converter, and the second is to see whether the motor changes its speed according to the actual working conditions during operation. There are many factors to look. Speed directly affects the oil pressure and high and low pressure. I can see whether there is frequency conversion in current or not. Literally understood, the speed of the variable frequency air compressor is almost the same as the fixed frequency under the working state. When the air compressor is not in the pumping state, the motor frequency will automatically drop and the input power will be reduced to achieve the effect of energy saving.
Therefore, the suction pressure of the compressor can be appropriately increased, and a high-efficiency cyclone inlet separator can be added in one stage of suction to further eliminate the resistance of the air inlet pipe network, and a higher suction pressure can be obtained while ensuring sufficient processing air. The pressure drop between the 1.2 compressor sections is reduced. The pressure drop between the compressor stages is also an important reason for the power consumption of the compressor.
What is the root cause of the low gas production of the oil-free air compressor? During the operation of the oil-free air compressor, insufficient gas supply occasionally occurs. What is the reason? In fact, machine selection, air leakage, gas production standards, machine wear and other aspects may lead to gas supply
Many enterprises in the purchase of permanent magnet variable frequency air compressor, often because of the permanent magnet variable frequency air compressor industry is not familiar with, do not know what kind of permanent magnet variable frequency air compressor brand. Generally speaking, in the domestic permanent magnet variable frequency air compressor market, there are several commonly used
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