Sandwich water boiler

Abstract

The invention provides a sandwich water boiler comprising a housing, an insulation layer, an outer quartz glass liner, an induction heating layer and an inner quartz glass liner sequentially from outside to inside. The top of the boiler is provided with an inflow pipe and an exhaust pipe which penetrate sequentially the housing, the insulation layer, the outer quartz glass liner, the induction heating layer and the inner quartz glass liner and which open in a cavity of the inner quartz glass liner. The bottom of the boiler is provided with an outflow pipe which penetrates sequentially the housing, the insulation layer, the outer quartz glass liner, the induction heating layer and the inner quartz glass liner and which opens in the cavity of the inner quartz glass liner. The sandwich water boiler is environment friendly, free of pollution emission, energy efficient, lower in firing cost, free of environmental pollution, good in mechanical strength and thermal stability, impact resistant, long in service life, safe and reliable to use and applicable to the places such as a kitchen and a bathroom.

Description

technical field [0001] The present invention relates to a boiler, in particular to a boiler for heating water. Background technique [0002] As an important heating equipment, hot water boilers have been developed for many years. At present, hot water boilers mainly include three types: (1) Coal-fired boilers: Due to the large discharge of coal-fired pollutants, the country is vigorously controlling pollution. In most cases, it is now mandatory to replace other methods. (2) Natural gas boiler: It is the main alternative to coal-fired boilers at present. Although the emission of pollutants can barely meet the national standard, due to the high price of natural gas, its combustion cost is much higher than that of coal-fired boilers, and its pollutant emissions are also low. Can not be ignored. (3) Oil-fired boiler: This method is difficult to promote because of its high cost and more pollutant emissions than natural gas. [0003] Existing hot water boilers use coal, natural...

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Problems solved by technology

(3) Oil-fired boiler: This method is difficult to promote because of its high cost and more pollutant emissions than natural gas

[0003] Existing hot water boilers use coal, natural gas or other fuels to generate heat to heat water. Due to insufficient coal combustion and low heat exchange efficiency, a large amount of combustion heat is wasted, which increases heating costs and increases The amount of fuel used, and the combustion of the above-mentioned fuels will produce a large amount of greenhouse gas emissions, causing serious environmental pollution and energy waste. At the same time, the low energy conversion rate also makes the temperature of hot water not high enough. In order to ensure sufficient heat supply, It can only be realized by increasing the hot water circulation speed, which in turn increases the energy consumption of circulating hot water and increases the heating cost

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