Principle Function Of The Components - Grundfos Vaccuperm VGS-141 Montage- Und Betriebsanleitung

Rooms with pressure lines (e. g. storage rooms for chlorine
containers)
• Flat, even floor
– not below ground level
– not higher than a possible loading ramp
✓
Fig. 10 Regulations for chlorine rooms (1)
Fig. 11 Regulations for chlorine rooms (2)
• Direct exit to the open air
• Lockable
– doors must open outwards
– it must be possible to open the doors without a key from
inside the room
• No connection to other rooms
– separated gastight and fire-resistant from other rooms
• A maximum of two vent holes of max. 20 cm
• Water sprinkling system
– for precipitating escaping chlorine gas
– operation must be possiple by hand from outside the
chlorine rooms
– sufficiently dimensioned run-off with air trap
• Chlorine gas warning system
– with optical and acoustical alarm
– coupled to the water sprinkling system
– coupling must reactivate automatically after having switched
off (e. g. for container exchange)
• Chlorine gas must not be able to get into lower-lying rooms,
shafts, pits, canals or aspirating holes of ventilation systems.

2.5 Principle function of the components

Gas Dosing System
Differential
pressure
regulator
Vaccum
meter
Fig. 12 Components of a chlorinator
2.5.1 Vacuum regulator
• Reduces the gas pressure (overpressure) to subatmospheric
pressure (vacuum)
2.5.2 Measuring tube
• Displays the gas flow
2.5.3 Rate valve
• For adjustment of the required gas flow
– manually or automatically
2.5.4 Differential pressure regulator (option): VGA-117)
• Regulates the difference of the pressures before and after the
rate valve to a constant value
– Adjusted dosing flow stays constant even when the injector
2
each
vacuum varies.
2.5.5 Vacuummeter (option): VGA-117)
– Displays the injector vacuum
2.5.6 Injector
– Creates the vacuum necessary for operating the pant
– Mixes the chlorine gas with the water
Rate Valve
Measuring
tube
Chlorine gas
Vacuum regulator
Motive water
Injector
9