BIO, BIOA, ZIO - Combustion 911
BIO, BIOA, ZIO - Combustion 911
BIO, BIOA, ZIO - Combustion 911
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Application > Examples of application<br />
6<br />
VAS<br />
M<br />
IC 20<br />
+ LFC<br />
1.1.3 Cascade control for extended control range<br />
The burner is adjusted near-stoichiometrically to a low-fire<br />
rate of 10% using a pneumatic ratio control system. Smaller<br />
capacities can be adjusted with the IC 20 at a constant lowfire<br />
air flow rate by throttling down the gas flow. With cascade<br />
control, control ranges of 1:45 can be achieved with excess air.<br />
AKT<br />
VAS<br />
VAG<br />
GEH<br />
EKO<br />
<strong>ZIO</strong>, <strong>BIO</strong>, <strong>BIO</strong>A<br />
M<br />
IC 20 + BVA<br />
LEH<br />
EKO<br />
VAG+VBY<br />
1.1.4 Staged control with pneumatic ratio control system<br />
The burner capacity is switched cyclically between high fire<br />
and low fire by opening and closing the solenoid-operated<br />
butterfly valve for air.<br />
AKT<br />
MB 7 + BVHM<br />
GEH<br />
EKO<br />
LEH<br />
EKO<br />
<strong>BIO</strong>, <strong>BIO</strong>A, <strong>ZIO</strong><br />
The pneumatic air/gas ratio control system offers maximum<br />
safety by an air deficiency cut-out, with a constant lambda<br />
value being maintained while the air pressure varies. The<br />
low-fire rate is guaranteed by the bypass valve VBY. The high<br />
output impulse at the burner produces a uniform temperature<br />
distribution and good circulation of the furnace or kiln<br />
atmosphere, e.g. in heat treatment furnaces in the iron and<br />
non-ferrous metal industries or kilns for heavy clay and fine<br />
ceramics.<br />
<strong>BIO</strong>, <strong>BIO</strong>A, <strong>ZIO</strong> · Edition 05.10
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