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Manual Pury 250e
Measurement Principle
Manual Pury 250e 2006-06-08
17
5. Measurement
Principle
This chapter describes the various functions of the Pury 250E.
5.1. Functional
description
3
4
8
11
10
9
10
8
11
9
10
0000
M C
1
2
6
5
7
Figure 5 : The main components of the Pury 250E
1
Gas inlet
7
Condensate outlet
2
Condensate collector
8
Peltier cooler
3
Filter unit
9
Fan inlet
4
Gas cooler
10
Fan exhaust
5
Gas outlet
11
Control unit
6 Condensate
pump
The gas flows into the condensate collector (2) from line (1). Condensed water from
the process gas line is separated from the gas and then it flows through the filter
separation unit (3). The filter unit consists of both coarse and fine mesh filter
elements. Coarse particulates such as naphtha, hydrogen sulfide and dust are
washed out by the reflux action of the liquid condensate. The condensate from the
gas cooler (4) means that the filter is always wet and this increases the cleaning
effect as the return condensate also cleans the filter. The dried and conditioned gas
is supplied from the outlet (5). The condensate pump (6), removes the condensate
from point (7) up to a maximum pressure of 800 mbar. The enclosure has three
cooling air openings (9 and 10). The thermal energy from the Peltier elements is
removed via forced draft and a body (8) with cooling fins. The control unit (11) is
used to set the dew point set-point value and the condensate pump duty cycle.
Summary of Contents for Pury 250e
Page 1: ...Users Manual Pury 250e Gas Purification System ...
Page 6: ...Introduction Manual Pury 250e 6 Manual Pury 250e 2006 06 08 ...
Page 8: ...Installation Manual Pury 250e 8 Manual Pury 250e 2006 06 08 ...
Page 14: ...Commissioning Manual Pury 250e 14 Manual Pury 250e 2006 06 08 ...
Page 18: ...Maintenance Manual Pury 250e 18 Manual Pury 250e 2006 06 08 ...
Page 22: ...Circuit Diagrams Manual Pury 250e 22 Manual Pury 250e 2006 06 08 ...