Injection Regulation
Applications data sheet FAP018A
GB
ON LINE FLOW MEASUREMENT FOR THE
INJECTION REGULATION
OF CHLORINE ON DRINKING WATER SUPPLY
NETWORK
Customer: SEDIF
Owner:
Générale des Eaux (a water company)
Sites:
‘Ile de France” water distribution network(France)
Description of the application:
Whatever the process of water treatment in the factories
is, the sterilization of the water distribution networks
is inevitable to take into account:
- risks of bio-terrorist threats
- the degradation of the water quality related to the
time of stay in the pipes (from a few hours to a few tens
of days) and to the nature or state of these pipes.
With this intention, the drinking water distributors
inject chlorine into different points of their network.
This injection is controlled according to the residual rate
of chlorine and the instantaneous flow.
Description of the equipment :
Associated with the system of chlorine injection, our
flowmeters deliver the value of the instantaneous flow in
analogical (4-20 mA) or numerical (RS232 or 485 with protocol
MODBUS or JBUS) form.
The flowmeters consist of a converter UF322-L1 or MINISONIC
600/2000 associated with a pair of ultrasonic intrusive
or clamp-on probes depending on the constraints of the sites.
The whole equipment is generally gathered in a technical
room or an independent cabinet.
Particular technical specifications
and advantages:
The choice of Ultraflux flowmeters for this kind of application
has like advantages:
- great extent of measurement (day/night regulation),
- bi-directional measurement and without pressure loss,
- the insensitivity of the probes to clogging, pressure
and corrosion effects.
- fast time of response,
- little or none mechanical intervention on the pipes
depending on the type of ultrasonic probes selected.
Similar achievements were also made in foreign countries
(ex: photograph opposite, Bangkok).
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