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Technologies presentation

Energy saving technology

1. Plate Heat Exchanger

Corrosion-resistant plate heat exchanger

In conventional shell-and-tube heat exchangers, the temperature difference between the high- and low-temperature solutions after heat exchange is 18–30 °C. BROAD uses corrosion-resistant 316L stainless steel to manufacture plate heat exchangers; with a temperature difference of only 3–6 °C after heat exchange, more than 15% of energy can be saved.

2. Parallel Flow High / Low Temperature Generators

Optimized parallel pump system

To precisely control the circulation of the solution between the high- and low-temperature generators, a parallel pump system is used. In the high-temperature generator, a separate section for the concentrated solution lowers the generator temperature, increases output and reduces corrosion. This saves energy and ensures the service life of the chiller.

3. Refrigerant Level Control

Removing excess refrigerant to avoid wasting energy

In the event of overheating, a drop in cooling load, water temperatures that are too low or poor vacuum conditions, the refrigerant level rises and eventually overflows. As this overflow occurs inside the chiller at low cooling load, energy is wasted without anyone noticing. BROAD chillers are therefore equipped with refrigerant level controllers that detect any overflow. When it occurs, the heat input is immediately reduced to prevent this hidden energy waste.

Reliability technology

1. Separate Heating

Separate heating system technology

In heating mode, BROAD non-electric chillers completely isolate the main shell from the high-temperature generator. The main shell and the rotating parts do not run, which reduces heat loss and wear, prevents scaling in the evaporator during the heating season and ensures the service life of the chiller.

2. HTG Structure

Clean combustion for soot-free flue systems

To ensure complete combustion, the high-temperature generator (HTG) has a long structure with a dry-back combustion chamber. Flue tubes are used instead of solution tubes, which makes the structure more robust and ensures its service life. Carbon deposits can be cleaned easily, which prevents a loss of heat transfer efficiency and also reduces maintenance costs.

3. Inline Falling Head Auto Purge System

Automatic purge and venting system

To maintain the vacuum inside the chiller, it is equipped with an integrated automatic purge and venting system. Using the level variations of the solution, it purges non-condensable gases continuously and steadily during operation and vents them selectively, while keeping water vapour and other components inside the chiller.

Vacuum conditions are guaranteed at all times, so the solution does not deteriorate, and any loss of cooling capacity or corrosion caused by vacuum problems is avoided. This ensures stable operation and a long service life of the chiller.

4. Uniform Solution Spraying

Top spraying to prevent solution clogging

The solution is sprayed from the top to prevent any clogging. Unlike conventional random spraying methods, the solution in BROAD chillers is sprayed from above onto a deflector and flows evenly over the heat exchanger tubes for the best possible efficiency.

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Zero breakdowns
Zero breakdowns
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Long-term high efficiency
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Continuous innovation
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Energy efficiency
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