Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

multi zone furnace overtemp limits

Status
Not open for further replies.

joecontrol

Industrial
Sep 17, 2002
66
US
I am looking for some help on the upgrade of a multi zone car bottom furnace. I cannot get a direct answer on if i need a temp limit for each zone or if i can monitor the whole furnace with one thermocouple with one limit controller. For info no one zone has enough BTU's to push the furnace over the designed temperature limit.I am trying tp upgrade a furnace built in the 1950's. Up to a resonable saftey system without the expense of going to the full NFPA my employer does not want to spend the $$ and is not being forced to by osha or an insurance company.
Total BTU's is 12 million btu/hr each zone is 4 million btu/hr.
I would like to add pressure switches(gas high&Low,Comb air)Temp limit and & purge system & low fire start .With flame saftey relays at each burner.
Thanks,Joe
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top