Output issue of the deaerator
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Dear Haiyou friends: There are currently two boilers in use; the designed steam production capacity for each boiler is 180 t/h, while the output capacity of the deaerator is 300 m3/h. Previously, only one boiler was operated at a time, with one boiler standing by as a backup. Now that two boilers need to be operated, will the output of the deaerator not be sufficient? There is another question: since both boilers require a deaerator with a capacity of 360 t/h, why didn’t the design team design it for 360 t/h as required, but instead for 180 t/h? I would appreciate your advice! Thank you!
You mentioned having one in use and one as a backup, and it’s likely that you haven’t informed the design institute that the backup boiler in phase two also needs to be operational. In cases like yours, it should have been designed with two units in use and one as a backup; the backup boiler is only brought into use when one of the main boilers fails, so as to ensure the continued operation of the process system – it’s a backup in case of failures
The premise is that the design institute designed it with another furnace as a backup; now that both furnaces are in operation at the same time, the original design premise has been changed, so of course it is no longer sufficient. It is your technical leaders who failed to consider things properly and thoroughly – this is not the responsibility of the design institute, as they always design according to the owner’s requirements.