Blower Engineering Tri-Lobe TL Series, Инструкция по установке, использованию и обслуживанию

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Blower Engineering Instructional Manual 3
2.2 Working conditions
2.2.1 Speed of rotation –
The maximum speed of rotation is shown in Table I. The minimum
speed of rotation depends on the maximum allowed differential temperature.
2.2.2 Pressure – The inlet pressure ranges from 3 psig (20.7 kPa) to 15 psig (103.4 kPa). The maxi-
mum differential pressure is shown in Table I, and depends on the size of the blower. The maximum
compression ratio for all sizes of blowers is 2.
2.2.3 Temperature – The inlet temperature of the gas ranges from -13ºF (-25ºC) to 122ºF (50ºC).
The maximum differential temperature allowed is shown in Table I, and depends on the size of
the blower. The maximum temperature of the gas allowed at the discharge is 266ºF (130ºC).
Table I: Operation Limits
2.3 Capacity adjustment
Capacity can only be adjusted in one of the two following ways:
• Varying the speed of rotation. This can be achieved via belt drives or by varying the
electric motor supply voltage frequency
or
with a double polarity motor.
• Bleeding off of excess capacity via a regulating valve on the outlet
Do not use the safety valve for this purpose because it will suffer excessive wear.
Do not re-circulate the excess gas into the blower inlet without cooling because it could
cause excessive heating.
WARNING: Do not adjust the gas capacity by using throttle valves placed on the
inlet or outlet piping.
TL Arrangement Delta T
Size Vertical Horiz. psig “Hg ºF ºC
TL10 4800 4800 13 13 190 105
TL20 4800 4800 13 13 190 105
TL30 4800 4800 15 15 200 110
TL40 4800 4800 15 15 200 110
TL41 4800 4800 11 12 165 90
TL50 4800 3000 15 15 200 110
TL60 4800 3000 15 15 200 110
TL61 4800 3000 11 12 165 90
TL70 3800 2200 15 15 200 110
TL80 3800 2200 15 15 200 110
TL81 3800 2200 11 12 165 90
TL90 3000 1900 15 15 200 110
TL100 3000 1900 15 15 200 110
TL101 3000 1900 10 12 150 83
TL110 2400 1500 15 15 200 110
TL120 2400 1500 12 13 180 100
TL600 1800 1125 15 15 200 110
TL900 1800 1125 12 13 180 100