Q: How many kilowatts is a 21 cubic meter air compressor?
Answer: A pressure of 0.8Mpa requires approximately 132 kW, and a pressure of 1.0Mpa requires approximately 160 kW. (The actual gas volume is subject to the parameters provided by the manufacturer)
Reference: Shanghai Granklin Group Water Lubricated Oil Free Air Compressor Product Manual
Q: What company needs air compressor equipment?
Answer: Textile, electronics, chemicals, machinery, processing, petroleum, food, medicine, etc
The application range of air compressor equipment is too wide, and almost all products we see in our daily lives are used with air compressor equipment during production.
Air compressors are divided into oil injected air compressors and oil-free air compressors. The water lubricated oil-free air compressors produced by Shanghai Granklin Group are widely used in the electronics, food, medicine, semiconductor, and various special gas industries.
Q: How to choose between oil and oil free air compressors?
Answer: If conditions permit, oil-free air compressors are preferred.
Nowadays, environmental protection is becoming increasingly strict, and using oil-free air compressors does not incur fuel consumption. In addition to higher fuel consumption during purchase, the cost of later use and maintenance is much lower, and the most important thing is that it is also environmentally friendly.
Q: What is the oil content of compressed air?
Answer: 5mg/m ³ below
The oil content of compressed air in the Chinese Pharmacopoeia is ≤ 0.1mg/m3.
ISO8573 is a standard for general compressed air, with the highest level gas having an oil content of 0.01mg/m3, which takes a long time to detect.
Now Chinese pharmaceutical companies have gradually adopted the strictest requirements to control their compressed air quality.
Other compressed air oil content standards:
Diving breathing compressed air:<5mg/m3 in China and the United States,<1mg/m3 in the UK
Q: What is the replacement cycle for the air filter of the air compressor?
Answer: The conventional air compressor air filter can be used for about 2000 hours, depending on the actual working environment.
The air cleanliness of the air compressor room is relatively high, and the usage time can be appropriately extended, but it is not easy to exceed the maintenance time specified by the manufacturer.
It is necessary to replace the air filter element in a timely manner after the full maintenance period to prevent the compressed gas impurities from increasing due to the unclean filter element of the air compressor.
Q: What are the common faults of air compressors?
Answer: Air compressors often encounter some problems during use. Introduce some common faults and maintenance methods.
1. The air compressor is still working, but the air supply is insufficient. The air compressor operates at a certain pressure and stops the air tank.
Listen for air leaks in various pipelines outside the air compressor, compressor supply pipelines above the air storage tank, one-way valves, safety valves, pressure switches, etc. If the above problems are eliminated, it may be due to wear on the scalp bowl or exceeding the rated flow rate, and the machine is overloaded. As for the damage to the leather bowl, it must be replaced. The lifespan of an ordinary leather bowl is about 3 years.
2. The air compressor operates intermittently and the air supply is insufficient.
This fault is caused by insufficient voltage. There was a buzzing sound at the beginning. For example, the operating current at this time is too high. The minimum working voltage is 200 volts, making it difficult to start at this voltage. Frequent start-up can lead to an increase in head temperature. Final short-circuit shutdown. When it opens again, it should wait for its temperature to drop before opening. For areas where voltage fluctuations often occur, it is recommended to install automatic voltage stabilizers.
Q: What is the oil content at the outlet of the micro oil screw air compressor?
Answer: When the micro oil screw air compressor exhausts, the gas contains a certain amount of oil, water, and a small amount of impurities in the air,
After the filtration effect of the post-processing equipment, the cold dryer and precision filter, they will be basically removed, but there will still be oil in the gas, and the micro oil air compressor cannot achieve 100% oil free.
Q: What is the difference between oil free and micro oil air compressors?
Answer: The compressed air of an oil-free screw air compressor is 100% oil-free, and the post-treatment equipment only filters impurities and water vapor in the air, so it is better to choose an oil-free screw air compressor first.
There is a small amount of oil in the compressed air of the micro oil screw air compressor, which can be treated through post-processing equipment. However, no matter how the gas is treated, oil still exists in the gas.
Q: What is the maintenance interval for screw air compressors?
Answer: The maintenance cycle for screw air compressors is 500-3000 hours.
1. Air filter core: every 2000 hours or every six months
2. Oil filter 500 hours, every 5000 hours
3. Oil separator core every 4000 hours or six months
4. Special oil for screws every 4000 hours or 1 year.
Q: Does the air compressor belong to the scope of special equipment?
Answer: The compressor is not a special equipment, but the air storage tank and connecting pipeline that are equipped with the air compressor are included.
In a general purpose compressed air system, if the storage tank is less than 1 cubic meter or 10 kilograms, or if the pressure is higher than 10 kilograms but lower than 16 kilograms, the capacity is less than 1 cubic meter, and the product of pressure and volume (unit L) is less than 1000, it belongs to a simple pressure vessel.