Which burners offer the best combustion performance?

The choice of burner depends on your requirements, such as low NOx levels, specific fuels, price, etc. Here is a reference for you: http://www.hvacr.hc360.com/08daquan/web/hcft/hcft_11.htm

The two major domestic companies: Luoyang Ruichang and Hubei Jixiang

I highly recommend Luoyang Ruichang Petrochemical Equipment Co., Ltd.

Check what kind of burner the original poster is using; if it’s one installed on a boiler, I recommend Xu Zhou Burning Control Research Institute – it’s an established company in the field of burners! Low-oil and plasma ignition systems are also quite good these days! Ordinary burners are excellent in quality

The nozzles for the auxiliary combustion chamber and those for the CO incinerator that we are using now are both from Luoyang Ruichang Petrochemical Equipment Co., Ltd., and they perform quite well

The choice of burner depends on your material to be heated, the fuel, and the thermal power of the heating furnace. If the fuel is oil, please choose a rotary cup physical-chemical burner; manufacturers in Jiangxi are quite good

There is one in Shaanxi as well; it seems to be called Xinli Nozzles.

I hope we can set aside the factor of advertising and discuss the burner market objectively. I have been working on designs related to thermal engineering (including industrial furnaces, burners, etc.) for several years, and based on my experience over these years, I can offer some insights into the current state of burners. When it comes to burners, it’s not possible to simply say which ones are good and which ones are not. First and foremost, one needs to consider the application scenario and usage requirements, as well as factors such as the type of fuel and the control requirements. Overall, domestic burner technology is lagging behind foreign technology (in mathematical terms, it is less than or equal to foreign technology). The patents or new technologies claimed by domestic burner manufacturers are often products that have already been developed abroad but may be used in China for the first time. There are many burner manufacturers abroad, mostly in the United States, Canada, and so on; of course, there are also some in Germany, France, and Italy. Like JOHNZINK, HAWK, HAMWORTHY, DUIKE, and so on. With conventional burner designs already being widely used, each burner type has begun to develop its own direction of advancement – some focus on low NOX technologies, others on heat storage technologies, still others on oxygen-enriched air technologies, as well as technologies for efficient combustion of H2S. There are also burners designed for efficient use in industrial furnace systems, and large-capacity burners for boilers. In China, there are many manufacturers of burners, but few actually engage in research and development; or rather, few have the capability to do so. As mentioned earlier, most of the patents or new technologies claimed by domestic burner manufacturers are actually copies or imitations of foreign technologies. Let me briefly talk about a few domestic manufacturers I’m aware of. Starting with Luoyang Ruichang, which is often mentioned by people. As far as I know, this company relies mainly on Luoyang Research Institute for its technical support; therefore, it does have a solid technical foundation, boasting a range of oil-gas combined burners that are fully developed. In recent years, they have seized the excellent opportunity for large-scale development in the coal chemical industry, producing many sulfur recovery burners, capturing a significant share of the market, and earning a good reputation. Their market development tactics are also quite flexible; they have permanent market staff based in Beijing’s \"Prohibited Content: Please Delete\" office as well as at Shanghai Jinshan and Shanghai Petrochemical. It seems they also have a small calorimetry testing station, and overall, they possess a certain level of technical expertise. Speaking of Hunan Jixiang, they have competed with them several times; it seems that their technical capabilities are average. Even those from the same design institute or factory have mixed opinions about their products. However, their problem-solving skills appear to be good. As far as I know, their products are widely used at Tianjin Dagang Petrochemical. Actually, another company established with the support of Luoyang Institute is Luoyang Xinpu. This company is somewhat remarkable; it seems to focus mainly on the market for Fushun petrochemical equipment. Starting with burners, they now are able to manufacture a wide range of petrochemical devices such as heat exchangers. However, their breadth of offerings might mean that their depth of expertise is limited, and their burner technology is probably only average. It seems that there used to be a Jiangyin Petrochemical Machinery Factory in Wuxi; it had strong capabilities in burner technology. Later, it probably split into two separate factories – it’s not clear which ones they are. In any case, people usually refer to it as “Little Jiangyin.” That factory also produced burners for a few years; they mainly targeted the markets in Shanghai and Jiangsu. But it seems that in recent years it hasn’t been as successful as before. It’s a bit similar to the development in Xiaojiangyin. I remember hearing from some veterans that the Changshu Nozzle Factory, commonly known as “Changpen”, was once quite famous, but it seems to have declined significantly now. There are also some less well-known ones, such as Qiming Feng in Beijing and Zhongsheng in Jiangsu. Additionally, Shanghai Shipbuilding Research Institute 711, and Shenyang Liming are well-known for their torches; they must also have strong combustion technology. I almost forgot – there are also two other experts in the field of burners below. One is Beijing Shenwu. This company was founded on the principle of regenerative combustion technology developed by its founder, Dr. Wu Daohong. Over the course of a few years it has grown steadily, and it is said to have acquired a design institute or research center as well as set up thermal testing facilities; it clearly shows signs of further growth. However, their regenerative combustion technology was initially applied mainly in industries such as steel metallurgy and ceramics and glass, which delayed their entry into the petrochemical sector. It seems that as early as 2007, they began to enter the petrochemical market. Another is the 11th Academy of Beijing Aerospace; the company it has registered under is called Beijing Aerospace Petrochemical Technology and Equipment Engineering Company. This company started out by focusing on the development of rocket engines, and its experienced employees have made significant contributions to the advancement of combustion technology in China, holding a prominent position in this field. When they shifted from military to civilian use, the experienced engineers conducted extensive research on transforming combustion technologies into civilian products (mainly boilers and burners). They developed or localized a number of advanced burners, making them strong competitors in the domestic burner market. However, with the adjustment of their market strategy in recent years, their burner technology is no longer a key focus for development; instead, they have shifted their attention to the development of incinerators, reaction furnaces, hot air furnaces, and heating furnaces. Because although there are many conventional burners available, competition is fierce and prices are low, they generally do not participate actively. As far as I know, they generally develop burners that involve certain technical challenges; it’s difficult to produce them in large quantities, which is why their price is relatively high. However, their theoretical knowledge and calculation methods are quite good. They have cold-test benches, but no hot-test benches. Of course, there are those from other manufacturers as well; I can’t think of them all at once. The above is written from my own perspective; it may be somewhat one-sided in certain aspects. If there are any inappropriate points, please let me know promptly so that I can make the necessary corrections. It’s late at night; it’s time to go to bed.

I saw someone mention the Xuzhou Burning Control Research Institute above, so let me say a few words more. The name of this institute is well chosen and leaves a strong impression. In fact, they probably started out by manufacturing igniters. It seems that they were a group of people who separated from the Shaanxi Qinling Aviation Igniter Factory and established their own business in Xuzhou. Well, they did an excellent job – their igniters turned out to be of better quality than those produced by Qinling. Their igniters were more expensive than those from Qinling, but their sales volume was higher. After all, having dealt with burners for many years, they must have accumulated a lot of expertise in burner technology. I’ve seen their samples, and they are of good quality. From those samples, it’s clear that they mainly focus on producing igniters, as well as flame monitors, burners, torches, and combustion control systems. However, their burner technology seems not to be very advanced; their burner products are rarely seen in China. I think there’s a furnace in Maoming that uses their burners, but I haven’t come across any other examples.

As for Shaanxi Xinli, they have had one encounter with them regarding bidding. Objectively speaking, their level of expertise in manufacturing burners is quite average; they have been in operation for not long and mainly produce burners for vaporization furnaces (i.e., Texaco process burners). Although vaporization furnace burners are called burners, they are generally not included in burner technology. In China, products for vaporization furnace burners are mainly produced by reverse engineering or by manufacturing spare parts. Even in the market for vaporization furnace burners, Shaanxi Xinli does not rank at the top; the leader is the 11th Aerospace Research Institute, and there is also a company from Hebei named Guoxiong that performs well as well.

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It seems to be used on the 2 FW fluidized bed boilers in the thermal power plant of Maoming Petrochemical.