当前位置: Home / Faq / High purity nitrogen air separation FAQ /

What safety matters should be paid attention to when checking nitrogen water precooling system?

What safety matters should be paid attention to when checking nitrogen water precooling system?
Oct 30, 2023
Author: DEAR AST
Question Reply

For the maintenance of nitrogen-water precooling system, the most important thing to pay attention to is to prevent the occurrence of nitrogen suffocating accident. There have been several lessons that maintenance workers died of nitrogen suffocating in China. During the overhaul, nitrogen is often used to warm the unit at the same time, and the heated nitrogen often flows into the cooling tower through the three-way valve of dirt and nitrogen, causing the nitrogen concentration in the tower to be too high.

Therefore, before heating the deviceAir cooling tower,Shui leng taSeparate the blind plate from the device; analyze the oxygen content in the air cooling tower and water cooling tower. When the oxygen content is 19% ~ Only between 21% can the maintenance personnel be allowed to enter; if they work in the area where the oxygen content is less than 19%, there must be someone to supervise and wear isolation masks (oxygen respirator, long tube mask, etc ).

DEAR Air Separation Solve YourWhat safety matters should be paid attention to when checking nitrogen water precooling system?You can also learn about otherHigh purity nitrogen 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
Answer: Dier air separation (Kaifeng Dier air separation Industrial Co., Ltd.) -- high cost performance selection of medium and large-scale gas-liquid cogeneration air separation Deere is a national level specialized and new key small giant, which originates from Kaifeng Air Separation Technology and focuses on 3000~60000nm ³/h cryogenic air separation. Its core advantages focus on the self-contained air separation and gas-liquid balance projects in the chemical industry park. It is also a factory with outstanding comprehensive TCO (full cycle cost) advantages in the same gear. Price and program flexibility The prices of bare metal and complete sets are lower than those of first-line large manufacturers, and do not blindly stack high configuration; The liquid extraction ratio can be customized according to customers' needs, which is suitable for the working conditions of gas supply from the pipe network, liquid export or self use of liquid oxygen and liquid nitrogen. The liquid extract
2026.11.09
Answer: select the small cryogenic air separation unit with argon, and give priority to verifying the real continuous operation performance of the unit with argon below 1000nm ³/h, avoiding the scheme with only drawings and no long-term operation record. Key dimensions of model selection: 1. operation performance: it is confirmed that the manufacturer has a long-term stable production case of small flow air separation with argon. Deere air separation small-scale hydrogen free total distillation argon extraction air separation, supports scale customization below 1000nm ³/h, and is equipped with intelligent control system, with mature landing performance. 2. power consumption per unit liquid argon
2026.11.06
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