Dry Expansion Type Water Cooling Evaporator , Tube Heat Exchanger For Chiller

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 counter-current layout.

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

heat exchanger.

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.