OperationInstruction_Vsision XP - 第78页

Page 70 Vision XP+ V AC 4 Equipment 4.8 Cooling System Operating Instructions V ersion 1.5 4.8 Cooling S ystem Fig. 4-5 2 Coo ling system with inte grated coola nt water pu mp Fig. 4-5 3 Coo ling system with inte grated …

Vision XP+ VAC Page 69

4 Equipment

4.7 Exhaust Air System

Operating Instructions

Version 1.5

4.7 Exhaust Air System

4.7.1 Exhaust Fan VXP+ (option)

Fig. 4-50 Exhaust Air System with Connec-

tion for a Plant Exhaust System

Exhaust air from the process is

drawn off at the inlet and the outlet.

It will be supplied to the internal ex-

haust system via the pipe.

Fig. 4-51 Exhaust fan VXP+

The trapped heat generated by the

process is drawn in by the exhaust

fans. The trapped heat is then

cooled by blowing through coolers.

The cooled air may now be recircu-

lated.

Page 70 Vision XP+ VAC

4 Equipment

4.8 Cooling System

Operating Instructions

Version 1.5

4.8 Cooling System

Fig. 4-52 Cooling system with integrated

coolant water pump

Fig. 4-53 Cooling system with integrated

coolant water pump CN

The cooling system is stored in a

tank made of plastic underneath the

last cooling zone.

Coolant water is pumped from the

coolant water tank into the coolant

circuits by a rotary pump.

The hot water subsequently flows

through the plate heat exchanger. It

is cooled down as a result, and is

then returned to the tank.

The level of the cooling water will be

controlled by means of two float

switch sensors.

One sensor monitors controlled the

minimum full-level. The sensor gen-

erates a „min. water level” message

which is displayed by the software

when the fill-level is too low. If the

fill-level drops below the second

sensor, it is assumed that the sys-

tem has a leak and the heat and the

water pump are shut down for safety

reasons.

An additional sensor monitors cool-

ant water temperature. It triggers

the „maximum temperature exceed-

ed” alarm message if the selected

upper limit is exceeded and

switched off the heating.

Vision XP+ VAC Page 71

4 Equipment

4.9 Nitrogen (optional)

Operating Instructions

Version 1.5

4.9 Nitrogen (optional)

4.9.1 Layout of the Compressed Air and Nitrogen Unit

Fig. 4-54 Compressed Air and Nitrogen Unit

A) Pressure sensor

B) Nitrogen control

C) Isolation purge valve (pressure meter)

D) Flow meter / Pyrolysis with monitoring for venturi tube

E) Nitrogen switching (motor actuator)

F) Pressure gauge (behind the motor actuator)

G) Compressed air switching (motor actuator)

H) Nitrogen feed to process chamber (flow meter)

I) N2/O2 switch over valve

J) Purge valve process chamber

K) N2 usage indicator