HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

Sharing winter anti-freezing experiences: Things that are hard to anticipate

2017-11-20View Original

Thread Content

This post was last edited by repurb on 2017-11-26 at 11:26. I believe everyone still remembers the extremely low temperatures in winter 2015; what follows are my experiences as a newcomer at that time: That year, in the afternoon, with an hour left before quitting work, I was lying around at home, relaxed both physically and mentally (the rest is omitted)… Yet some managers ignored public opinion and ordered me to go on a inspection. The following is my conversation with some workshop staff. “Bro, didn’t we say yesterday that the graphite cooler needed to have the water drained from it? How did the outer shell end up cracking from freezing? ”“Bro, when I release water, the flow might slow down towards the end; by the time I go to turn a valve to fix it, it’s already like this. I really do, I swear! ” “Bro, your valve has frozen solid! I thought that having a continuous flow of water would be enough to prevent problems, but the low temperature is such that even a slight reduction in flow rate is enough for freezing to occur. Two months later, the fan in the circulating water cooling tower stopped working; when I went up to take a look, it felt like I was in the world of Frozen – the fan blades were covered in ice spikes, just like the caves in Guilin... We tried using steam to thaw them, but the sight was so beautiful that I didn’t dare to look too long... So, when faced with extremely low temperatures, don’t rely on luck – things can freeze right in front of your eyes, and even insulation isn’t effective in such situations.
Reply #22017-11-20
Freezing and cracking a pump happens in an instant; it’s really too fast to even blink. The task of preventing freezing involves many responsibilities and details; everyone should strive to do it well.
Reply #32017-11-20
If it can be shorter in length, I can continue to write more about how to defrost and start up the fans in the circulating water cooling tower.
Reply #42017-11-20
Anti-freezing is the most important inspection task in winter. In cases of extreme weather conditions, it is essential not to slack off in terms of responsibility on the part of the operators; measures such as keeping water flowing, draining fluid, or rotating the machinery must be taken. Sometimes, inspections and rotations of the machinery need to be carried out every 20 minutes. Your example clearly shows a lack of experience on your part, as well as an attitude of taking chances – you should be punished for that, right?
Reply #52017-11-20
Relying solely on inspections and supervision is not enough; all personnel must attach great importance to it, handle issues in advance, keep a close watch, and be ready to respond at any time.
Reply #62017-11-26
That’s absolutely correct; now the anti-freezing tasks have been broken down.
Reply #72017-11-26
That’s absolutely correct; now the anti-freezing tasks have been broken down.
Reply #82017-11-26
That’s absolutely correct; now the anti-freezing tasks have been broken down.

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.