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  H type fin tube  waste heat recovery device (also called economizer) The concept of economizer The  economizer  is the heating surface in the tail flue of the boiler that heats the boiler feed water into saturated water under the pressure of the steam drum. Because it absorbs relatively low temperature flue gas, it reduces the flue gas exhaust temperature and saves It improves energy and efficiency, so it is called an economizer. Working principle of economizer 1. The economizer greatly saves fuel. The economizer absorbs the heat of the low-temperature flue gas, reduces the temperature of the flue gas, reduces the flue gas loss, and saves fuel. Since the feed water is heated in the economizer before entering the steam drum, the heat absorption of the feed water on the heating surface is reduced, and the economizer can be used to replace part of the expensive evaporation heating surface. 2. The economizer can reduce the temperature of the flue gas, recover the heat of the flue gas, im

  Wall hung boilers have become the third largest gas product after gas water heaters and gas stoves, and wall-hung boilers are used most often in household heating. Wall-hung boilers can not only provide users with domestic hot water, but also heat the home. Wall-hung boilers can be divided into single-heating and dual-purpose boilers in terms of function, and they can be divided into instant heating and volumetric heating methods. The instant heating models are divided into casing machines and plate changers. What is the difference between a wall-hung boiler casing machine and a plate changer? How much do you really know? Did you choose the right one? The  heat exchanger  can be described as the core component of the gas wall-hung boiler, which is responsible for heat exchange between the flue gas generated after the combustion of the gas and the water in the system. From the perspective of the heat exchange structure of the heating and hot water functions of the ordinary wall-hung b

  Types of Shell and tube heat exchanger Shell and tube heat exchanger  is also called tubular heat exchanger. It is a partition type heat exchanger with the wall surface of the tube bundle enclosed in the shell as the heat transfer surface. Shell and tube heat exchanger has simple structure, low cost, wide circulation cross section, and easy to clean scale; but it has low heat transfer coefficient and large area. It can be made of various structural materials (mainly metal materials) and can be used under high temperature and high pressure. It is the most widely used type. Shell and tube heat exchangers include fixed tube plate steam-water heat exchangers, shell and tube steam-water heat exchangers with expansion joints, floating head steam-water heat exchangers, U-shaped shell and tube steam-water heat exchangers. Corrugated shell and tube steam-water heat exchanger, segmented water-water heat exchanger and other types. The main control parameters of the shell and tube heat exchanger

What  is fin tube heat exchanger Fin tube heat exchanger   is a kind of heat exchange equipment used in gas and liquid heat exchangers. It achieves the purpose of enhancing heat transfer by adding fins to the ordinary base tube. The   fin tube heat exchanger  is one of the earliest and most successful discoveries in the process of improving tube heat transfer. This method is still the most widely used method among all tube heat transfer surface enhancement methods.  It is not only suitable for single-fin tube heat exchangers, which are widely used in power, chemical, petrochemical, air-conditioning engineering and refrigeration engineering. Structure of   fin tube heat exchanger The basic heat transfer element of the  fin tube heat exchanger  is a finned tube, a finned tube mountain base tube and a fin combination. The base tube is usually a round tube, but there are also oval tubes and flat tubes. The surface structure of the fins includes flat fins, interrupted fins, corrugated fins