[Guess what Haichuan Equipment] is usually hidden under the belly of the core equipment, making it inconvenient to get in and out.

Like a condenser turbine cooler :)

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I've seen lithium bromide units look like this

I’ve never seen this device before. My company won’t use it.

You seem to know a lot about it. Why should it be painted green? ?

A heat exchanger that condenses turbine exhaust steam into water, also known as a rehydrator. Condensers are mainly used in steam turbine power devices and are divided into two types: water-cooled condensers and air-cooled condensers. In addition to condensing the exhaust steam of the steam turbine into water for reuse in the boiler, the condenser can also establish and maintain a vacuum at the exhaust steam of the steam turbine. Classification According to different steam condensation methods, condensers can be divided into two types: surface type (also called partition type) and hybrid type (also called contact type). In a surface condenser, the vapor separated from the cooling medium is condensed into liquid on a cooling wall (usually a metal tube). The cooling medium can be water or air. Water-cooled surface condensers are divided into single flow (Fig. 1) and double flow (Fig. 2) according to the flow mode of cooling water. In a mixing condenser, steam is condensed into a liquid while mixed with a cooling medium. The condensed vapor can be either water vapor or vapor of other substances. Water-cooled surface condenser is mainly composed of shell, tube bundle, hot well, water chamber and other parts. The exhaust steam of the turbine enters the casing through the throat, condenses into water on the cooling tube bundle and collects in the hot well, and is pumped out by the condensate pump. Cooling water (also called circulating water) enters the cooling tube bundle from the inlet water chamber and is discharged from the outlet water chamber. In order to ensure a high vacuum and good heat transfer effect in the condenser during steam condensation, it is also equipped with air extraction equipment, which continuously extracts air and other non-condensable gases that leak into the condenser. Air extraction equipment mainly includes water jet air extractors, jet steam air extractors, mechanical vacuum pumps and combined vacuum pumps, etc. In the air-cooled surface condenser, the air passes horizontally or naturally ventilates outside the tube bundle with the help of a fan, while the steam flows within the tube bundle and is condensed into water. In order to improve the heat transfer outside the tube, this type of condenser uses external fin tubes. Its back pressure is much higher than that of a water condenser. There are two types of hybrid condensers: spray type and plane jet type. In a spray condenser, the cooling water is atomized into droplets ； In the plane jet type, the cooling water contacts the exhaust steam of the turbine in the form of a film. Generally, a plane jet structure is used because it has a higher vacuum and can discharge all non-condensable gases.