Introduction to the technical principles of gas pulse soot blower

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The gas pulse soot blower technology can promptly remove ash and scale from the boiler’s heating surfaces, improve the boiler’s thermal efficiency, prevent ash accumulation in the regenerator’s heat storage elements, and effectively clean existing ash deposits. Technical principle: The gas pulse soot-blowing technology involves efficiently mixing premixed combustible gases, which are then ignited inside a specially designed combustion chamber with a nozzle at one end. This ignition generates intense compressive shock waves that are directed into the flue duct through the nozzle. These shock waves exert a alternating effect of first pushing and then pulling on the soot deposits on the heated surfaces, thereby achieving soot removal. Working principle: The high-pressure gas generated by the deflagration of the gas pulse soot blower is ejected through nozzles, creating three types of waveforms: shock waves, oscillation waves, and sound waves. It acts on the heated surface. 1. First is the shock wave; this mechanism is essentially the same as that of traditional mechanical jet soot blowers, with the difference being that high-temperature gas also plays a role in the \"pyrolysis\" of the ash deposits simultaneously with the shock wave. 2. Secondly, deflagration causes excitation of the heating surfaces; dry, loose soot, as well as high-temperature slag and low-temperature compacted soot that have been dislodged by shock waves, will detach from the heating surfaces due to the strong alternating inertial forces generated by vibration, with the vibration lasting for a short time. 3 The intense sound waves generated by deflagration operate in the same way as those used in acoustic soot blowing; the difference is that the sound level of these waves is much higher. Components: The gas pulse soot blower consists of a complete set of software and hardware systems, including a pulse generation system, a mixing ignition system, a gas supply system, and a program control system. Technical features: Gas pulse soot blowing is a form of \"dry soot blowing\"; it delivers high soot-blowing energy and is highly effective in removing ash adhered to the heating surfaces. It overcomes the problems associated with \"steam wet blowing\" as well as the insufficient energy of acoustic soot blowing. It has a wide range of applications – it can be used not only for cleaning tubular heating surfaces but also for rotary heating surfaces. Low operating costs and excellent energy-saving effects: The operating costs are approximately 15% of those for steam soot blowing and 40% of those for acoustic methods, with less maintenance required. For power plant boilers, pulse soot blowers can increase thermal efficiency by 0.5–1%. Taking a 300-megawatt unit as an example, with 7,000 hours of operation per year, this can result in a savings of 8,600–17,000 tons of coal per year. At a cost of 600 yuan per ton of coal, this translates to savings of 5.16–10.2 million yuan per year. The product is suitable not only for various power station boilers but also for dust removal from the heating surfaces of heat exchangers in industries such as petroleum, chemicals, metallurgy, cement, papermaking, glass, and heating. This technology has been widely applied in over 30 provinces and cities, including Beijing, Shanxi, and the Northeast China region. It achieves significant energy-saving results, bringing substantial social and economic benefits to enterprises. This article is reprinted from: www.kbwchq.com