What is the feed heater?

The power water heater is part of the installation of a turbine powered by steam and steam locomotives used to pre -threshing water in the primary boiler. These components help improve the overall thermal efficiency of the boiler and also protect against damage to thermal shock. There are two types of power heater, open and closed, which use exhaust pairs from a turbine or locomotive rollers to heat water. Open water heaters mix this steam directly with power water, which not only serves to heat the water, but also removes part of the oxygen causing corrosion. Closed heaters are structured similarly to primary boilers, with water circulating a series of pipes enclosed in a shell filled with steam. These boilers heat water in a dense bundle of tubes, causing it to evaporate quickly and create a high -pressure pair. Water was used to repeat the power supply of the deserted boiler pumped from the holding of tanks or from the locomotive to or close to the ambient temperature. Introduction of this colder water into a muchA warmer boiler can have a number of negative effects. The first is the apparent drop in the temperature of the boiler water, which negatively affects its overall efficiency and the second is the potential damage to the internal structure of the boiler by thermal shock.

In order to prevent these problems, the water heater is used to convert the water temperature to an acceptable level before introducing the boiler. Exhaust steam from a turbine or locomotive cylinders is usually used to heat water, which further increases the efficiency of the system. There are two basic types of power heater, ie those that have open or closed steam exposure systems.

Open feed heater uses direct exposure for heating power water. In this system, water is exposed to direct physical contact with a heating steam. The water is either sprayed or left to cascading horizontal trays in a closed container. Steam is introduced at the bottom of the vessel and thickeIts water. This system has a further advantage of removing a significant amount of oxygen causing corrosion from the water before pumping it to the primary boiler.

The

closed power water heaters are designed in a similar way to the primary boiler with a tightly wrapped bundle of tubes located in a closed shell. The water is pumped by the tube and the steam spreads through the shell, thus warming up indirectly. The water created by a condensing steam inside the shell is then attached to the supply water supply tank for re -use.