GIEBEL
FilTec
GmbH
•
Web
www.giebel-adsorber.de • Email [email protected] • Tel +49 (0) 7946 944401-0 Seite 6/9 Part 9 Risk and hazard analysis
1 Overpressure resp. vacuum builds up inside the system
1.1 Too high air flow
At an excessively high air flow, overpressure resp. vacuum can be build up inside the
system.
1.2 Filter contaminated
The filter unit may be clogged with dirt particles.
See Maintenance Schedule Item 3
1.3 Prefilter disc contaminated
The prefilter disc may be clogged with dirt particles.
See Maintenance Schedule Item 4
1.4 Active carbon oversaturated
After the activated carbon is fully saturated, oil may accumulate and clog the adsorber.
See Maintenance Schedule Item 2
1.5 Oil on the desiccant
Oil particles collect in the pores of the silica gel. In the film of oil, dirt particles can accu-
mulate and thus hinder the supply and exhaust air.
See Maintenance Schedule Item 1
2 Moist air flows into the system
2.1 Porous sealings
Moist air can flow inside the adsorber at porous parts. Thus no complete drying is
possible and moist air is entering the system.
See Maintenance Schedule Item 5
2.2 Saturated desiccant
If the desiccant is saturated, it can’t longer adsorb moisture. Thus moist air is entering the
system.
See Maintenance Schedule Item 1
2.3 Too high air flow
At an excessively high air flow, the contact time between moist air and desiccant is too
low. This allows moist air to flow into the system.
2.4 Oil on the desiccant
If oil particles get into the adsorber, the particles close the pores of the desiccant. Thus
no adsorption is possible.
See Maintenance Schedule Item 1
2.5 Ambient temperature too high
Does the peripheral temperature rises more than 80°C, the inflowing ambient air is dried
only partially.
3 Adsorber housing is damaged
3.1 Material resistance
When selecting an adsorber the ambient and operating conditions should be respected.
See Maintenance Schedule Item 6
3.2 Vibrations of the system
Excessive vibration of the system may damage the adsorber.
See Maintenance Schedule Item 6
