Chlorine Extraction; Checking The Tightness; Constructional Requirements Of Chlorination Plants - Grundfos Vaccuperm VGS-141 Instrucciones De Instalación Y Funcionamiento

2.2.7 Chlorine extraction

Before the extraction
• The chlorine containers must be stored at least for 8 hours in
the container room so that the content can adapt the ambient
temperature.
Warning
Chlorine containers must never have a higher
temperature than other parts of the plant. Danger of
liquefaction and possible chlorine break-out!
• Turn chlorine drums on the support until the dip pipe and the
riser pipe are placed vertically (observe the markings on the
drum).
• Check tightness.
Connection
• Protect containers from turning over or rolling away!
• Dry the piping and the withdrawal system with dry nitrogen or
dry air.
• No foreign matter must get into the plant.
• Mount new gaskets to the connection line.
• Connect the container.
• Slowly open the container valve.
Withdrawal of gaseous chlorine
At 15 °C about 1 % (DIN 19607) of the content can
be withrawn per hour. In case of higher withdrawal
Caution
danger of malfunction by the formation of ice on
containers and piping!
Container size
50 Kg
65 Kg
500 Kg
1000 Kg
In case of higher chlorine requirement several chlorine containers
of the same temperature have to be connected with header lines.
Withdrawal of liquid chlorine
• Within chlorination plants only possible from chlorine drums.
• Application of an evaporator is necessary.
Do not completely evacuate the chlorine drums.
Caution
Danger of withdrawing deposits!
• Withdrawal of gaseous chlorine:
Observe residual pressure of ca. 2 bar.
• Withdrawal of liquid chlorine:
Observe residual pressure of ca. 4 bar.
After the extraction
• Close container valve.
• Disconnect container from the plant.
• Screw on valve protection nuts.
• Screw on protection cap.
Immediately close connection lines.
Caution
No moisture must get into the lines!

2.3 Checking the tightness

Before commissioning check the tightness of the whole plant.
Therefor see chapter 5.2.2, Inspections before commissioning
8
Withdrawal quantity
500 g/h
650 g/h
5 Kg/h
10 Kg/h

2.4 Constructional requirements of chlorination plants

All chlorine rooms
Fig. 6 Warning sign DIN 4844
– Warning sign according to DIN 4844 part 1 no. 4.2, to be
installed at entrances
Chlorination unit
Acces only for
instructed persons
Fig. 7 Supplementary sign
– Supplementary sign according to DIN 4844 part 1 no. 4.5, to
be installed at entrances
Fig. 8 Mandatory sign
– Mandatory sign according to DIN 4844 part 1 no. 4.3, to be
installed inside the rooms
First aid in the case of
CHLORINE GAS POISONNING
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HEALTH DANGERS
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FIRST AID
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Fig. 9 Instruction sheet for first aid
• Instruction sheet for first aid in case of chlorine gas
intoxications, to be installed inside the rooms
• Maximum temperature: 40 °C
– recommended temperature: 18-20 °C
– recommended minimal temperature: 15 °C
• Overpressure lines of dosing equipment must not end in the
open air
• Chlorine rooms must not be dedicated for the permanent stay
of people.
• Only chlorine containers and the chlorination plant may be
present in the rooms.