Fully premixed condensing gas-fired hot water boiler
The so-called full premixed condensing gas hot water boiler is a new type of hot water boiler that combines the two most energy-saving technologies-full premixed technology (gas and air) and condensation technology (flue gas).
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The so-called full premixed condensing gas hot water boiler is a new type of hot water boiler that combines the two most energy-saving technologies-full premixed technology (gas and air) and condensation technology (flue gas).
Full premixing is a combustion method in which gas and air are fully mixed in a certain proportion before combustion, and air supply is no longer required during the combustion process; full premixed combustion has fast flame propagation speed, high volumetric thermal intensity of the combustion chamber, generally up to 28 ~ 56x103kW/h or higher, and can achieve complete combustion with a small excess air coefficient, and there is almost no chemical incomplete combustion phenomenon, so the combustion temperature is very high.
Condensation is to cool the water vapor produced by the combustion of natural gas into water. In this process, part of the heat will be released, and then this part of the heat will be absorbed, which can greatly reduce the exhaust gas temperature (50 degrees to 95 degrees, ordinary boiler exhaust gas The temperature is between 170 degrees and 240 degrees).
Full premixing can be divided into pre-premixing and post-premixing. Pre-premixing technology means that the gas and excess air are premixed before the fan, and the premixed gas is blown into the combustion chamber through the fan. Gas proportional valve and automatic premixing control technology, so that the gas in front of the fan and the air according to the proportion of 1:11.8 to fully mix, by adjusting the gas proportional valve, so that carbon dioxide emissions stable at 9.1-9.3, to ensure that all of its combustion. The metal fiber burner is used to make the premixed gas burn evenly on its surface, avoid the existence of local high temperature, and greatly reduce the emission of harmful substances such as carbon monoxide and nitrogen oxides while improving the combustion efficiency.
Condensation heat transfer technology. The main heat exchanger of the core component of the condensing gas heating water heater is cast aluminum type, which integrates the burner, flue and water channel. The cast aluminum heat exchanger has good corrosion resistance, and the heat absorption of the cast state has the largest heat exchange area in a limited volume. The burner and the water outlet are located above the main heat exchanger, and the water inlet is located at the bottom. The temperature of the water flow gradually increases from bottom to top, and the temperature of the flue gas gradually decreases from top to bottom. The reverse flow ensures that each point in the heat exchanger can fully exchange heat, absorb the sensible heat and most of the latent heat of water vapor in the flue gas, effectively reduce the exhaust temperature, saturate and precipitate the water vapor in the flue gas, and take away some harmful gases in the flue gas in the process of the heat.
Product advantages
[High efficiency and energy saving] The operating efficiency of all-cast aluminum high-efficiency condensing boilers is more than 35% higher than that of ordinary boilers. It is the first choice for natural gas energy-saving heating, which will directly reduce operating costs for users and bring considerable economic benefits.
[cost saving] installation and maintenance costs are low, and energy-saving heating will directly reduce operating costs to users and bring considerable economic benefits. Boiler, small size and light weight, wheeled support, the use of PVC pipe for exhaust pipe, installation is simple, thus saving the boiler and smoke pipe installation costs.
[Clean environmental protection] ultra-low CO, NOx emissions and more full combustion, so that the use of clean energy more clean and environmentally friendly. NOx emissions are as low as 30 mg/m3, adapting to China's increasingly stringent NOx emission standards, which are lower than the 80mg/m3 implemented by Beijing. Ultra-quiet operation, noise <50dB.
[small area] 1000kW boiler covers an area of about 2 square meters, heating area can reach more than 16000 square meters.
[More stable operation] The wide channel and flue design of the aluminum heat exchanger, as well as the core components of the boiler such as high-power fans, are all imported from European first-line suppliers. The European mature design is simple to operate and ensures long-term stable operation.
[Long service life] According to European standards, the design life of core components such as cast aluminum heat exchangers can reach more than 35 years.
[worry-free use] strong pre-sales technical support, perfect product after-sales service, and 19-channel protection system worry-free use.
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