Hot water boiler with preheating water tank

Abstract

A hot water boiler with a preheating water tank comprises a boiler body, the preheating water tank and a dust collection box. The boiler body is connected with the preheating water tank through a smoke pipe, and the preheating water tank is connected with the dust collection box through a gas conveying pipe. A hot water outlet pipe is arranged at the upper end of the left side of the boiler body, and an air heater and an air blower are arranged at the lower end of the left side of the boiler body. A water cooling wall pipe, a fire grate, an air inlet, a slag outlet and a waste slag chamber are arranged in the boiler body, and the left end of the water cooling wall pipe is connected with the hot water outlet pipe. A water inlet pipe is arranged on the right side of the top end of the preheating water tank and connected with a preheating water pipe inside the preheating water tank, the pipe orifice in the other end of the preheating water pipe is connected with the water cooling wall pipe inside the boiler body through a connecting pipe, and a denitration pool is arranged at the inner bottom end of the preheating water tank. According to the hot water boiler, waste heat in waste gas of the boiler can be used for preheating cold water in the preheating water pipe of the preheating water tank, so that the heating efficiency is improved, and the energy source utilization rate is improved.

Description

technical field [0001] The invention relates to the field of boiler production and manufacturing, in particular to a hot water boiler with a preheating water tank. Background technique [0002] Boilers are mainly used in daily life, and a small amount of them are used in industrial production. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's life, and can also be converted into mechanical energy by steam power devices, or converted by generators. Mechanical energy is converted into electrical energy. However, the existing boilers have problems such as small heating area, low thermal efficiency, high coal consumption, and exhaust gas pollution. Therefore, a boiler with high heating efficiency, low displacement, energy saving and environmental protection is urgently needed in the market. Contents of the invention [0003] The object of the present invention is to provide a hot water boiler wit...

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Problems solved by technology

[0002] Boilers are mainly used in daily life, and a small amount of them are used in industrial production. The hot water or steam generated in the boiler can directly provide the required heat for industrial production and people’s life, and It can be converted into mechanical energy through a steam power device, or converted into electrical energy through a generator. However, the existing boilers have problems such as small heating area, low thermal efficiency, high coal consumption, and exhaust gas pollution. Therefore, there is an urgent need for a high heating efficiency in the market. , low displacement, energy-saving and environment-friendly boiler

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