Evaporative condenser

Evaporative condenser is a common name, also known as a closed cooling tower. It is actually a closed cooling tower that uses the evaporation of spray water to carry heat away from the tower by air, cooling the circulating medium in the heat exchange tubes. The circulating medium is completely isolated from the outside world. Because the cooled circulating medium is isolated from the outside world and completely enclosed, it is sometimes called an evaporative condenser. The internal circulating medium is only cooled, with no consumption or evaporation. Because the spray water outside the heat exchange tube vaporizes, a large amount of water vapor mixes with the air, increasing the humidity. An axial flow fan carries this saturated, high-humidity, high-enthalpy air out of the tower into the external environment.

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Evaporative condenser

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Evaporative condenser

Overview

Evaporative condenser is a common name, also known as a closed-circuit cooling tower.

It is actually a closed-circuit cooling tower that uses the evaporation of spray water to carry heat away from the circulating medium in the heat exchange tubes via air, completely isolating the circulating medium from the outside world.

Because the cooled circulating medium is isolated from the outside world and completely sealed, it is sometimes called an evaporative condenser. The internal circulating medium is only cooled, with no consumption or evaporation.

As the spray water outside the heat exchange tubes vaporizes, a large amount of water vapor mixes with the air, increasing the humidity. An axial flow fan then carries this saturated, high-humidity, high-enthalpy air out of the tower into the external environment.

Working Process

► Latent heat of vaporization: Similar to a closed-circuit cooling tower, it relies on the evaporation of the spray water outside the heat exchange tubes to absorb the latent heat of vaporization and remove the heat energy from the industrial circulating water medium inside the sealed heat exchange tubes;

► Indirect heat exchange: The spray water and air are completely isolated from the circulating medium, with no contact, only heat exchange, no contact.

Main Advantages

► No evaporation: Only cooling, no evaporation, no consumption. The circulating medium is completely isolated from the outside air, with no contact, no evaporation consumption of the medium, and no impurities entering, ensuring the stability of the internal medium composition.

► No scaling: Due to the absence of evaporation, the concentration of scaling ions such as calcium, magnesium, and sulfate in the medium does not change, so scaling will not occur.

► No algae growth, good environmental performance;

► Water, electricity, and worry saving. In winter and spring, when the temperature is low, spray water may not be needed, and air cooling alone can meet the cooling requirements, significantly saving water; automatic operation, no manual intervention required, automatically stops the spray pump or fan when the temperature reaches the set requirement.

Application Scenarios

It is widely used in heavy industries such as iron and steel metallurgy, casting and smelting, petrochemicals, chemical and light textiles, and machinery and power generation. It is not prone to scaling, reduces evaporation, and is often used for cooling desalinated water and pure water, cooling in sealed heat exchange tubes, completely isolated from the outside atmosphere.

► Iron and steel metallurgy: Blast furnaces, continuous casting and rolling, crystallizers, air compressors, etc.;

► Large-scale casting: Melting furnaces, frequency converters, quenching liquids, etc.;

► Petroleum refining: Reactors, smelting furnaces, heat exchangers, etc.;

► Chemical and light textiles: Reactors, etc.;

► Air conditioning and refrigeration: Compressors, etc.;

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Evaporative condenser

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Evaporative condenser

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