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Condensate return pump. In industrial steam systems the condensate pump is used to collect and return condensate from remote areas of the plant. The steam produced in the boiler can heat equipment and processes a considerable distance away. Once steam is used it turns to hot water or condensate.
The fan coil unit will contain a purpose designed drip tray with drain connection for this purpose. The simplest means to drain the condensate from multiple fan coil units will be by a network of pipework laid to falls to a suitable point. Alternatively a condensate pump may be employed where space for such gravity pipework is limited.
Three views of a c.1885 steam trap. The general appearance of this arrangement is as in Fig. 1 or Fig. 3, the center view, Fig. 2, shows the cardinal feature of this trap, that it contains a collector for silt, sand, or sediment which is not, as in most other traps of the time, carried out through the valve with the efflux of water.
At the bottom of the shell, where the condensate collects, an outlet is installed. In some designs, a sump (often referred to as the hotwell) is provided. Condensate is pumped from the outlet or the hotwell for reuse as boiler feedwater. For most water-cooled surface condensers, the shell is under [partial] vacuum during normal operating ...
Mersey Railway locomotive Cecil Raikes, showing the prominent exhaust pipes leading back to the water tanks. A condensing steam locomotive is a type of locomotive designed to recover exhaust steam, either in order to improve range between taking on boiler water, or to reduce emission of steam inside enclosed spaces.
In 1921 a tank with vacuum pump for removing gases was used in Pittsburgh. [23] In 1934 and 1940 a tank with vacuum pump for removing gases were used in Indiana. [24] [25] Vacuum deaerators can be rubber lined on the inside to protect the steel heads and shell from corrosion. [26]
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