Service Handbook OEB/OES/OGB/OGS
2.5.2b Steaming under 100°C in units with direct injection (OES/OGS)
= active in this cooking programme
= not active in this programme
= can be active
1 = Pr
essure compensation valve
2 = Fan wheel
3 = Oven chamber
4 = Steam and air circulation
5 = Bypass pipe
6 = Convection heat exchanger
7 = Demoisturizing tub
8 = Hydraulic seal in condenser
9 = Demoisturizing nozzle
10 = Condenser cooling
11 = Convection heating
12 = Fan motor
13 = Pressure regulator
14 = Manometer
15 = Pressure switch (water)
16 = Reducer nozzle
17 = Water injection distributor
18 = Injection nozzle
B3 = Condenser temperature probe
B5 = Bypass temperature probe
B6 = Oven temperature probe
B10 = Core temperature probe
Y1 = Solenoid valve "condenser cooling "
Y2 = Solenoid valve " demoisturizing "
Y4 = Solenoid valve direct injection
i
Information:
In Steaming under 100°C, the oven 3 is heated via the convection heating 11/ the
convection burner.6. To generate steam, water is sprayed into the fan wheel 2 via
the injection nozzle 18 and the ball spray distributor 17, through the centrifugel
force it is flung outwards and evaporates on the hot surface.
The switching on and off of the convection heating 11 / convection burner 6 is
controlled by the oven temperature probe B6, which switches the heating / burner
on when the temperature falls below the nominal temperature. At the same time
that it is heating up, the direct injection can be active. To generate steam, water is
sprayed onto the fan wheel 2 via the injection nozzle 18 and the Water injection
distributor 17, the centrifugal force flings it outwards and it evaporates on the hot
surface. After further operation the injection via the solenoid valve Y4 remains
switched on until the set selected value on the bypass probe B5 is reached.
The motor 12 runs continuously in reverse operation in Steaming under 100°C via
the contactors K5 and K50.
The programme is stopped automatically when the time or the pre-set CTC (Core
temperature probe B10 ) temperature is reached.
AS/11-2011 2_05_02e_Steaming under 100°C_b
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