There are two blowers on the fired heater at our facility. To switch the blowers the heater must be shut down and the standby blower then started. The standby blower cannot be started with the online blower in operation. Once the discharge valve on the standby blower is opened the heater trips and the motor of the standby blower usually spins backwards. There are no check valves on the discharge line which is common to both blowers. What design can be done to prevent having to shut down the heater to switch these blowers.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
A/E firms have a great opportunity to lead the world into the future, but the industryâ€™s greatest assetâ€”real-time dataâ€”is sitting wasted in clunky, archaic ERP platforms. Learn how real-time, fully interactive dashboards in a modern ERP allow you to unlock data that will shape the future of the world. Download Now