Dual purpose energy-saving boiler for hot water and steam

Abstract

The invention provides a dual purpose energy-saving boiler for hot water and steam. The boiler comprises an upper water liner, a lower water liner, a main liner body, a subsidiary water tank, a combustion chamber and an electric heating tube, wherein the main liner body comprises an inner circle of a water pipe and an outer circle of a water pipe, and is a pipeline structure, thereby not only increasing the heating area in the main liner body, improving the heat utilization rate of heat energy, but also having strong pressure resistance, preventing occurrence of boiler explosion, and ensuring the safety of the boiler; after the subsidiary water tank heats cold water by residual heat, the water enters the lower water liner, the main liner body and the upper water liner, thereby improving the efficiency of heat energy, and saving energy. The boiler can select different heat modes conveniently according the requirement of different production situations, selects different single fuels or mixture fuels or electric heating, such as coal, firewood, electricity, fuel, gas and the like. The boiler can be used both as a steam boiler and a hot water boiler, is the energy-saving environment-friendly boiler with steam and hot water dual purposes.

Description

technical field [0001] The invention relates to a boiler, in particular to an energy-saving boiler with dual functions of hot water and steam. Background technique [0002] At present, there are a wide variety of boiler products of various specifications and functions on the market. For example, electric heating boilers that use electric energy as boiler energy are suitable for small-scale use, which is convenient and safe, but limited by electric power, they are not suitable for large-scale production; coal-fired and diesel-fired boilers also have a history of decades of use. But for this type of boiler, safety and environment have become the two major issues in use today; in addition, there are fuel oil, gas boilers, hot water, steam boilers, atmospheric pressure, pressure boilers and so on. Various single boiler products have their own characteristics and are suitable for various production occasions with different needs. [0003] In addition, the furnace of existing bo...

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Problems solved by technology

[0003] In addition, the furnace of existing boilers mainly uses large-volume water storage tanks directly. This kind of water tank has great hidden dangers in safety. Once the boiler fails, it is easy to cause major safety accidents such as boiler explosion.

In addition, the existing boilers mainly use the high-temperature furnace smoke produced by burning fuel to directly heat the water in the furnace. The high-temperature furnace smoke is often discharged through the exhaust port without being fully utilized, resulting in low heat energy utilization and high fuel consumption. waste of energy

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