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What is condensing technology, what is the working principle and core point of condensing boilers
- Categories:News
- Author:Shenzhen Zhongli Weiye Electromechanical Equipment Co., Ltd.
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- Time of issue:2020-04-29 16:13
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What is condensing technology, what is the working principle and core point of condensing boilers
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Condensing boiler is to use high-efficiency flue gas condensation waste heat recovery device to absorb the sensible heat in the exhaust flue gas at the tail of the boiler and the latent heat released by the condensation of water vapor, so as to achieve the purpose of improving the thermal efficiency of the boiler. Condensing technology The key to condensing boilers is condensing technology, which is a new type of energy-saving and environmentally friendly technology; her principle is not complicated, and a simple summary is to recover the heat energy in the flue gas by condensing the flue gas. In traditional boilers, the exhaust gas temperature is generally 160~250℃, or even higher, so that the water (such as natural gas: CH4+2O2→CO2+2H2O) generated when the fuel is burned is in a superheated state in the flue gas. Air escapes from the chimney. The thermal efficiency of traditional boilers can generally only reach 85% to 91%.
The condensing gas boiler reduces the exhaust gas temperature to 50~70℃, fully recovers the sensible heat in the flue gas and the condensation latent heat of water vapor, and the thermal efficiency can be as high as 108.9%. The working principle of the condensing boiler The working principle of the condensing boiler is to recover the energy in the hot flue gas (generally around 140 ℃) discharged after the boiler is burned through a certain device, and the exhaust gas temperature after recovery is only about 60 ℃. In this way, the thermal efficiency is increased by about 10%, which naturally saves about 10% of the gas. At the same time, in the process of energy recovery, it can also reduce the emission of harmful gases and reduce environmental pollution.
The core point of the condensing boiler The core of the condensing technology is to reduce the heat loss of fuel combustion, efficiently absorb the heat energy generated by the fuel, and at the same time, due to the condensation of the flue gas, the harmful substances in the flue gas are collected into the condensed water, which reduces the acidity and other substances. Pollutants are emitted into the air. More advanced condensing gas boilers use smokeless combustion technology, which reduces nitrogen oxides (NOx can cause acid rain and greenhouse effect) emissions to beyond 35mg/kwh.
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