Energy Saving Water Cooling Evaporator
Tube Heat Exchanger for Chiller
For shell-and-tube heat exchangers If the process flow diagram does
not indicate the direction of the fluid
in the nozzle, the following principles should be observed:
First, under normal circumstances the heating fluid should be down
into the out; the cooling of the fluid
should go up and down. Cold fluid and hot fluid should use
Second, with steam heating, for horizontal or vertical heat
exchanger, the steam should be from the upper
nozzle into the condensate from the lower nozzle discharge.
Third, the water cooling, for horizontal or vertical heat exchanger
cooling water from the lower nozzle into
the discharge from the upper nozzle. The cooling water should be
piped to keep the dirt and water in the
Fourth, high temperature logistics should go to the pipeline, low
temperature logistics should go shell
approach. Clean logistics should go shell approach. And easy to
produce blocking, scaling of the logistics
should go to the pipeline. Corrosive logistics should go to the
pipeline, and no corrosive logistics should
go shell approach. Higher pressure of the logistics should go to
the pipeline, the lower the pressure of the
logistics should go shell approach. Low flow of the logistics
should go shell approach, and the flow of high
logistics should go to the pipeline. To the heat of the larger
coefficient of logistics should go to the
pipeline, and to lower the heat coefficient of the logistics should
go shell approach.
The pipe arrangement of the heat exchanger should be easy to
operate and maintain, and should not
interfere with the passage of the operation and maintenance
channels. Pipes with valves and regulators
should be arranged near the operating channel of the heat
exchanger. See Figure 2.0.3-1,2.
Pressure gauges, thermometers, mirrors, valves, liquid level meters
and liquid level regulators on the
piping around the heat exchanger should be located near the passage
and easy to operate and observe
from the operating channel.
Piping, instrument (including the membrane of the control valve),
the valve from the heat exchanger
device flange, cylinder (including the base or insulation layer)
should be left between the gap, the
minimum clearance of 150mm. See Figure 2.0.4 and Figure 2.0.3-2.
Orifice flowmeter should be installed in the operating surface of
not less than 2200mm horizontal pipe,
with temporary ladder can be close to the place.