Buhler EGK 4S, Installation And Operation Instructions Manual

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EGK 4S
9.3 Diagram typical installation
Test gas
Sample gas
1 Sample gas probe 2 Sample gas line
3 Reversing tap 4 Sample gas pump
5 Sample gas cooler 6 Automatic condensate drain
7 Fine mesh filter 8 Moisture detector
9 Flow meter 10 Analyser
See data sheets for individual component models and data.
9.4 Heat exchanger
9.4.1 Heat exchanger description
The energy content of the sample gas and the required cooling capacity of the gas cooler is determined by three parameters: gas
temperature
ϑ
G
, (inlet) dew point
τ
e
(moisture content) and volume flow v. The outlet dew point rises with increasing energy
content of the gas. The approved energy load from the gas is therefore determined by the tolerated rise in the dew point.
The following limits are specified for a normal standard operating point of
τ
e
= 65 °C and
ϑ
G
= 90 °C. The maximum volume flow
v
max
in Nl/h of cooled air is indicated, so after moisture has condensed.
If the values fall below
τ
e
and
ϑ
G
, the flow v
max
may be increased. For example, on the TG heat exchanger the parameter triple
τ
e
= 65 °C, ϑ
G
= 90 °C and v = 280 Nl/h may also be used in place of τ
e
= 50 °C, ϑ
G
= 80 °C and v = 380 Nl/h
Please contact our experts for clarification or refer to our design program.
9.4.2 Heat exchanger overview
Heat exchanger TS
TS-I
2)
TG
TG
TV
TV-I
2)
Version / Material Stainless steel Glass PVDF
Flow v
max
1)
530 L/h 280 L/h 150 L/h
Inlet dew point τ
e,max
1)
80 °C 80 °C 65 °C
Gas inlet temperature ϑ
G,max
1)
180 °C 140 °C 140 °C
Max. Cooling capacity Q
max
450 kJ/h 230 kJ/h 120 kJ/h
Gas pressure p
max
160 bar 3 bar 3 bar
Pressure drop Δp (v=150 L/h) 8 mbar 8 mbar 8 mbar
Dead volume V
tot
69 ml 48 ml 129 ml
Gas connections (metric) G1/4 GL 14 (6 mm)
3)
DN 4/6
Gas connections (US) NPT 1/4” GL 14 (1/4")
3)
1/4"-1/6"
Condensate out connections (metric) G3/8 GL 25 (12 mm)
3)
G3/8
Condensate out connections (US) NPT 3/8" GL 25 (1/2")
3)
NPT 3/8"
1)
Max. cooling capacity of the cooler must be considered
2)
Models marked I have NPT threads or US tubes, respectively.
3)
Gasket inside diameter
19 Bühler Technologies GmbH BE450004 ◦ 10/2018