Installation-, Operating-, Maintenance-Manual, Spare Part List
BCR04
AGT-PSG GmbH & Co.KG
Errors and printing mistakes excepted
Page 30
Translation - Manual BCR04 Rev. 6/2017
Functional Characteristics of the Refrigerant Ciruit
Depending on operating condition, the
refrigerant compressor 1
compresses the vaporous refrigerant from the
inlet pressure of approximately 210kPa (=2,1bar) to the condensation pressure of 800-1700kPa (=8-17bar).
The vaporous refrigerant is liquefied by cooling in the subsequent
refrigerant condenser 2
. The fluid refrigerant
is passed through the
refrigerant dryer 2
to the
flue damper 4
.
The fluid refrigerant is expanded by the
flue damper 4
from high pressure (condensation pressure) 1100kPa to
low pressure (evaporation pressure) 210kPa. This expanded and fluid refrigerant flows through the
heat-
exchanger pipes 6
of the
evaporator 5
. By energy input of the
exchangeable heat-exchanger 7
the fluid
refrigerant evaporates and cools down the passed through sample gas to a temperature of +3°C. Over the
liquid
separator 10
the
refrigerant compressor 1
sucks again the vaporous refrigerant.
Over the
power regulator 9
the sample gas conditioner performs a self-adjustment to alternating gas flows,
inlet temperatures and dew points. With a by-pass from the pressure- to the suction-site the pressure-controlled
power regulator 9
keeps the sample gas chilling temperature constant to +3°C.
The
temperature control unit 12
monitors the dew point temperature and accesses the power regulation. It
provides an alarm at unacceptable exceeding or undercut of temperature.
