当前位置: Home / Faq / Small air separation FAQ /

No pressure in the cylinder before starting the air compressor of small air separation unit

No pressure in the cylinder before starting the air compressor of small air separation unit
Jul 02, 2025
Author: DEAR AST

According to the starting characteristics of the motor towing the air compressor, when the air compressor is started, its starting current is several times the current in operation. Too much starting current can have a negative impact on the machine itself, the transformer and the transmission line, so we should try to shorten the starting time and the starting current. However, if pressure exists in the cylinder before the air compressor starts, the starting torque will become larger and the starting current of the motor will be larger than no-load starting, so that it is easy to damage the air compressor or cause accidents on the power grid.

 

Dear Air Separation employs dozens of experts and technicians in machine and vessel equipment manufacturing and inspection to ensure the reliability of equipment manufacturing. We are currently setting up a joint research and exchange mechanism with domestic universities in the areas of intelligent manufacturing, intelligent operation and maintenance, engineering structural science, nano-sensing field and materials science, truly becoming a technology development institution combining academics and production in the small air separation unit and large air separation plant industry.

16

DEAR Air Separation Solve YourNo pressure in the cylinder before starting the air compressor of small air separation unitYou can also learn about otherSmall air separation FAQ about DEAR Air Separation, and solve the problem for you.
Didn’t find the problem encountered?
Please contact live chat or email for quick help.
Related FAQ
More Related FAQ
The liquid air separation plant system uses the cold energy to produce liquid oxygen, liquid nitrogen and liquid argon in an air separation system, including an air compression pre-cooling system, an air purification system, an air separation system and a nitrogen circulation system for liquid air separation plant cold recovery. the nitrogen circulation system for liquid air separation plant cold recovery is placed in a separate cold box from the main cold box of the air separation system. the l...
2026.08.03
In the process of operation, especially in the start-up and shutdown of the air separation unit, one-way force should be avoided on the instrument. During the start-up of the equipment, close the high pressure and low pressure valves firstly, then open the balance valve, and then slowly open the high pressure (or low pressure) valve, so that the measured medium can enter the positive (negative) pressure chamber of the transmitter. If the liquid is to be measured, the gas in the positive (negative) pressure chamber should be discharged from the upper vent. If the gas is measured, drain the liquid accumulated in the positive (negative) pressure chamber from the lower drain screw hole. After discharging the gas (liquid), close the balance valve, and then open the valve on the other side. When the equipment is shut down, the high pressure (or low pressure) valve should be closed first, then the balance valve should be opened, and then the valve should be closed on the other side. Someti
2026.07.31
Need more information?
Contact us for more details about our air separation equipment, solutions and services.
Products
  • Large air separation
  • Small air separation
  • High purity nitrogen air separation
  • Liquefaction air separation
  • Complete air separation
  • Biogas purification
  • Air separation parts
Need more information?
Tel:+86-19837850537
© Kaifeng DEAR Air Separation Industry Co., Ltd.. All rights reserved.
Online
Inquiry
Email
Top