Issues to consider in chlor-alkali production in winter (mainly how to prevent freezing)
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This post was last edited by sunjl1981 on 2013-1-6 at 21:47. Issues to consider in chlor-alkali production during winter (mainly how to prevent freezing). What methods do you use to prevent freezing in winter? # + + . hcbbs
Reply 1# goodhaisong: The selection and installation of insulation materials should be done properly; if the medium is not sensitive to high temperatures, steam tracing can be used.
Every winter, chlor-alkali plants always carry out anti-freezing measures in advance: they cover the outdoor equipment areas with cloth to prevent wind from affecting them, activate steam heating systems, drain water from any sections of pipelines where dead zones may exist or adjust the flow rate there, and also turn on the backup cooling water for pumps
1. Pipe insulation types include steam heating and electric heating. 2. For some pipes, it is necessary to ensure that a liquid medium flows through them; for example, in the pipes carrying chlorine water in wash towers for dechlorination, the flow rate can be reduced to keep the flow ongoing
Pay main attention to the water system and the chlorine cooling system. Anti-freezing and insulation work for synthetic graphite equipment. Electric heat tracing is generally used for water pipelines and chlorine pipelines! Discharge condensed acid and condensed water in a timely manner! Before winter arrives, drain all residual materials from the system in graphite equipment and purge it with nitrogen!
For equipment that is out of use, all remaining cooling water within it must be drained; for equipment that is still in use, a certain flow rate of cooling water must be maintained to prevent freezing.