ABB CEMcaptain GAA610-M, Инструкция по эксплуатации

Страница: 28 / 100

28
GAA610-M
ADVANCED EMISSION GAS MONITORING SYSTEM | OI/GAA610-M-EN REV. B
… 6 Installation
… Sample gas line installation
Procedures for laying the sample gas line
Laying in ducts or shafts
Incorrect Correct
Figure 15: Laying in ducts or shafts
A
Do not lay the heated sample gas lines directly side-by-side
in an enclosed duct or shaft. This results in heat
accumulation.
B
Ensure that the hoses do not touch. Maintain a distance of
25 mm. Provide adequate ventilation. Heat can be conducted
away as a result.
Soiling the heated sample gas line
Incorrect Correct
Figure 16: Soiling
A
Prevent powdery substances, adhesives or other thermally
insulating materials from soiling the heated sample gas line.
Otherwise, over\-heating will occur at these points.
B
If soiling occurs, clean the materials and remedy the cause.
Heat can be conducted away again as a result.
Wrapping the heated sample gas line
Incorrect Correct
Figure 17: Wrapping
A
Avoid heat accumulation through wrapping the heated
sample gas line with other materials, otherwise the sample
gas line will overheat at these points. Do not cover the area
near the temperature sensor, otherwise the rest of the
sample gas line will cool down.
B
Do not wrap the sample gas line. Ensure that the area near
the temperature sensor is exposed.
This results in error-free temperature measurement.
Wall break-through
Incorrect Correct
Figure 18: Wall break-through
A
Do not lay the heated sample gas line in a wall break-through
which is subsequently sealed with a sealing compound under
any circumstances. The sample gas line will be destroyed by
overheating in this case!
B
When laying the heated sample gas line through a wall break-
through, use bulkhead plates with conduit thread cable
glands, in order to provide adequate cooling of the sample
gas line.
Laying several heated sample gas lines
Incorrect Correct
Figure 19: Bundling several gas lines
A
Avoid bundling or laying several heated sample gas lines, so
that they touch each other. This results in overheating at the
contact points.
B
Lay several heated sample gas lines separately with a
distance of at least 2.5 cm and provide adequate ventilation.
Heat can be conducted away as a result.