Cooling & Heat Systems
Heat exchanging units with double loop "water-water"
Application
Heat exchanging units are designed for cooling the semi – conductor converters and current conducting components of electric installations by deionized distilled water.
Design
Heat exchangers incorporate the following main components:
- bearing frame;
- plate – type heat exchanger;
- circulating pumps – main and stand – by;
- stop pipeline valves;
- instrumentation;
- ion exchanging filter.
The plate type heat exchanger is actually a set of plates placed between the bearing and the pressure plates. The non – ferrous steel plates with projections form separate channels for two mediums, which participate in the process of heat exchange and move in counter – current flow. The inner loop – distilled deionized water, the outer loop – industrial water. Control and measurement of water temperature in both of the loops is assured by multi – channel digital meter. The system of monitoring and control ensures automatic changing – over to the stand – by pump, measuring temperature of the cooling water in as many as eight channels with information brought out by way of the built – in line adapter, forming the emergency opening signal in case of temperature rise above the set value in any of the channels.
Main specification
| Parameter name | Unit type | |||||
|---|---|---|---|---|---|---|
| HE–w/w–50 | HE–w/w–75 | HE–w/w–150
| ||||
| Output of removed heat losses, kW | 50 | 75 | 150
| |||
| Rated deionized water flow, m3/hr | 6 | 12,5 | 25 | |||
| Rated industrial water flow, m3/hr | 8* | 10* | 16* | |||
| Power rating of circulating pump motor, kW | 2,2 | 2,2 | 5,5 | |||
| Surface area to be cooled, m2 | 3,4 | 5,1 | 10,2 | |||
| Mass, kg | 390 | 430 | 550 | |||
| Overall dimensions, mm | 1300×600×1400 | 1500×800×1400 | 1650×800×1400 | |||
*defined by industrial water parameters.
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