In recent years, affected by the national “energy saving and emission reduction†policy, the commercial gas cooker market has gradually become well known to the public. The domestic commercial gas stove market is still in a chaotic state due to the fact that the emerging commercial gas cooker market has not yet established a standardized industry standard and the research and development strength of each company is mixed. With the constant standardization of the industry, the commercial gas stove industry must have a development process. Next, let's take a look at the contents of commercial gas cookers with Xiaobian.
First, the understanding of traditional commercial gas cookers
The commercial gas cookers currently used in the market are mainly divided into three series: wide-type stove, Ning-style stove and Shandong stove. However, the combustion mode of each series continues the traditional combustion method, namely “post-mixing combustion†(thermal engineering is called diffusion combustion). After the mixed combustion, that is, while the combustion side is mixed with oxygen, the gas is blown in the combustion chamber of the furnace and then the fan is blown, and the ignited gas is supplied to the wind by the blower. The state of low technical content results in an unreasonable structure of most of the burners in use, low fuel burnout rate, wasted energy, and pollutes the environment. The burning method of this traditional stove has been continued for many years. The national technical supervision department formulated the cooker industry standard in 1999, and its standard thermal efficiency is only 20%, and waste is 80%. What makes the fuel utilization rate so low? There is a phenomenon of heat radiation, heat conduction and air burning.
Second, the advantages and disadvantages of traditional commercial gas stoves
1. Advantages: High stability - since the gas and air are not mixed before burning, it will not affect the pressure of both sides. The flame is relatively stable, and the size of the flame can be freely adjusted through the front of the stove. The traditional commercial blast burner burner consisting of a blower and a burner has a simple structure and low cost and is widely used in the domestic commercial stove industry.
2. Disadvantages: The shallow combustion chamber burner, which is widely used, has a depth of 30 mm. The total air inlet volume is about 130mm, and the maximum air hole is 4-6mm. The gas and oxygen cannot be mixed in the proportion required for normal combustion, so that the gas cannot be fully burned, and a large amount of incompletely combusted high carbon gas is formed to be removed from the flue. Large emissions, low thermal efficiency, and high gas consumption.
1) The bottom of the pot is 200-220mm away from the plane of the burner, the distance is too long, and the medium and small flames are not enough for the bottom of the pot, resulting in waste;
2) The inlet air hole is too large, the wind pressure is too fast, and the fuel is blown around the furnace and the flue is burned to cause waste;
3) The amount of air intake is unreasonable. When the load exceeds a certain load, it is a red-yellow flame, the flame is large but weak, the fire is unevenly dispersed, the black smoke is burned, the burning is not good, and the sewage is aggravated;
4) The depth is too shallow, the time for the fuel to stay in the combustion chamber is too short, the premixing is not sufficient, and the high temperature zone of the combustion flame column is mostly carried on the combustion chamber, and the strong wind blows, causing the heat to be blown to the furnace flue and causing waste. , fuel burn-up rate, utilization rate, and thermal efficiency are very low;
5) The gas cannot be depressurized;
6) The burner material is made of ordinary iron sheet and common process, which has short service life and high maintenance cost;
7) At the same time, due to the use of traditional stove flames (ie, fire) and the presence of high temperature heat conduction and heat radiation, a large amount of gas is wasted.
How, according to the detailed introduction of Xiao Bian, are readers more aware of the commercial gas cooker? For those who encounter such problems in life, I hope readers can think of reading such an article. Thereby creating a more perfect home environment. Thanks to the readers for reading this article and for the support and love of Xiaobian, if you want to get more home improvement information, please continue to pay attention to the decoration home network.
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