当前位置: Home / Faq / Biogas purification FAQ /

What is the purpose of pressure testing for the completion of the light tower in the air separation equipment?

What is the purpose of pressure testing for the completion of the light tower in the air separation equipment?
Sep 24, 2025
Author: DEAR AST

The completion pressure test of the light tower in the air separation equipment is a key link to ensure the safe and stable operation of the equipment. Its core purpose is to verify the structural strength and sealing, ensure process safety, guarantee product quality and efficiency, extend equipment life, and meet acceptance and compliance requirements.
Strength testing: By injecting high-pressure gas (such as nitrogen) or liquid into the tower, simulating the pressure conditions during actual operation, the pressure bearing capacity of the tower body, connecting pipes, flanges and other components is tested to ensure that they will not undergo permanent deformation or rupture under the design pressure.
Sealing test: Check for leaks at the connections of the tower body (such as welds, flange gaskets, manhole seals, etc.) to prevent gas or liquid leaks during operation that may cause safety accidents or a decrease in product purity.
The pressure test of the dehydration tower is a bridge connecting equipment manufacturing and safe operation. Through systematic testing, hidden dangers are eliminated, laying the foundation for the long-term, efficient, and safe operation of the air separation unit.

DEAR Air Separation Solve YourWhat is the purpose of pressure testing for the completion of the light tower in the air separation equipment?You can also learn about otherBiogas purification 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
Conventional liquid air separation plants are cooled by isothermal throttling refrigeration and expander refrigeration, LNG cold energy air separation eliminates the need for an expander and utilises the cooling capacity of LNG and isothermal throttling refrigeration. The air separation unit uses circulating nitrogen gas to liquefy into liquid nitrogen in a liquefier, which is fed into the lower tower, where the cold is transferred to the distillation system to pump the dirty liquid nitrogen thr...
2026.01.08
Cryogenic air separation nitrogen production uses air as raw material, which is compressed, purified and heat exchanged to liquefy gas air into liquid air. Liquid air is mainly a mixture of liquid oxygen and liquid nitrogen. Liquid oxygen and liquid nitrogen have different boiling points and are separated by distillation to obtain nitrogen. 1. Air compression and purification The air passes through the air strainer to remove dust and mechanical impurities, then enters the air compressor, compresses to the required pressure, and then goes to the air cooler to reduce the air temperature. It then enters the air drying purifier to remove moisture, carbon dioxide, acetylene and other hydrocarbons from the air. 2. Air separation The purified air enters the main heat exchanger in the air separation column, and is cooled to the saturation temperature by the reflux gas (production nitrogen gas, waste gas), and is sent to the bottom of the distillation column. The nitrogen is obtained fr
2026.01.07
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