EasyManuals Logo

AUTOFLAME Mk8 MM User Manual

AUTOFLAME Mk8 MM
395 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #200 background imageLoading...
Page #200 background image
10 Water Level Control
Mk8 MM Manual Page | 200
10.10.4 Sudden Pressure Drop
Swell management uses the firing rate and boiler pressure to prevent intermitted shutdowns due to 1
st
low
level alarm being activated during transitory conditions.
Please see section 3.5.1 for more information on swell management.
The table below shows the expansion options for sudden pressure drop.
Expansion Option
Description
24
Sudden pressure drop trigger rate
25
Sudden pressure drop control point increase
26
Sudden pressure drop reset offset
When there is a sudden steam demand, steam is drawn from the header rapidly. The boiler steam pressure
will decrease quickly, so the MM will increase its firing rate to meet the load demand.
A sudden pressure drop condition will be true when the pressure drops by the value set in expansion option
24 over a time of 3 seconds to a pressure below the reset offset from the require pressure set in expansion
option 26. When a sudden pressure drop is detected, the control point is increase by the percentage set in
expansion option 25.
Without the sudden pressure drop function, the system will trigger a 1
st
low water level alarm as the feed
water pump/servomotor would not react quick enough to maintain the water level in the boiler.

Table of Contents

Other manuals for AUTOFLAME Mk8 MM

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the AUTOFLAME Mk8 MM and is the answer not in the manual?

AUTOFLAME Mk8 MM Specifications

General IconGeneral
BrandAUTOFLAME
ModelMk8 MM
CategoryController
LanguageEnglish

Related product manuals