There are many types of boilers on the market. The once-through boiler is one of the most frequently used boiler equipment, which means that the feed water is passed through the economizer, evaporating heating surface (water wall), superheater and all changes by the pressure of the feed water pump. It is a boiler for superheated steam. So, compared with other types of boilers, what are the advantages of once-through boilers? Let Zhengzhou Fangkuai Boiler Factory tell you the answer.
After the feed water enters the boiler, the heating, evaporation and superheating of water vapor are all carried out continuously in the heating surface, so there is no need to separate steam and water in the middle of heating. Therefore, it does not have a steam drum for a natural circulation boiler. There is no fixed dividing point between the heating surface of the economizer, the heating surface of the evaporator and the heating surface of the superheater, which changes with the boiler load. There is no steam drum (drum). The feed water is preheated and evaporated by the pressure of the feed water pump. When it comes to overheating, it is a power plant boiler that generates steam with rated parameters and capacity by passing through the heating surfaces at all levels at one time. The circulation rate of the evaporation zone is 1.
Since there is no obvious boundary between the evaporation and superheating heating surface of the once-through boiler, problems such as unstable flow and pulsation sometimes occur in the evaporation heating surface. It is necessary to install a throttle orifice at the inlet of the tube group, and between the inlet and outlet headers. Measures such as installing a breathing header to improve. In addition, film boiling (that is, the vapor bubbles generated on the heating surface are too late to separate and form a vapor film) phenomenon occurs on the evaporation heating surface, which is not conducive to heat conduction, resulting in overheating of the tube wall, which affects the safety of boiler operation. In this regard, spoilers or internally threaded pipes can be installed in the water wall in the high heat load area to delay the appearance of film boiling. Measures such as flue gas recirculation or adjustment of burner layout can also be used to reduce the maximum heat load in the furnace.
As the operating conditions demand higher and higher requirements for the peak regulation characteristics of the boiler, the adaptability of the once-through boiler to load changes has been paid more attention. The once-through boiler with spirally rising tube coil has the least sensitivity to the thermal deviation in the furnace, there is no two-phase fluid distribution problem between the tubes, and there is no need to install an orifice at the nozzle, so it has good low-load operation characteristics. However, the requirements for water quality and automatic adjustment are high, the resistance of the soda system is large, and the power consumption of the water pump is relatively large.
With the boomingdevelopment of the mobile Internet industry, new technologies, new services and data centers are becoming more and more closely related, and all walks of life are growing rapidly in the "cloud". The massive data processing needs make the Internet industry face new challengesof the era of comprehensive cloudification of data storage and transmission modes. In this context, cloud computing integrates various forces to form a joint force, which brings convenience to the development of various tasks and creates a new business model.
As the backbone of the special equipment manufacturing industry, Fangkuai Boiler also follows the general trend of the development of the cloud era and deepens the social driving force of "cloud data". Leading the development of the industry, Fangkuai Boiler will facethe situation of opportunities and challenges.
The full name of the Canton Fair is China Import and Export Fair, which was officially established on April 25, 1957. This year, it is the 127th session. As a comprehensive international trade event with the longest history, highest level, largest scale, most complete product variety, and best transaction effect in China, the Canton Fair has also been favored by many well-known domestic and foreign companies, and has contributed to the promotion of economic globalization.
Affected by the international epidemic situation, the Canton Fair is also flexible and adaptable, with the help of the global interconnection, it is held online.
As one of the countries along the “Belt and Road”, Uzbekistan has maintained friendly economic and trade relations with my country. This time, with the aid of the long-term economic cooperation between China and Uzbekistan, Fangkuai Boiler Company has also reached a long-term strategic cooperative relationship with a local trading company in Uzbekistan. This is undoubtedly a further expansion of Uzbekistan and other companies for FANGKUAI Boiler Company. The international market in Central Asia.
The company that cooperated with Fangkuai Boiler Company this time is a well-known local trading company in Uzbekistan, which involves many industries such as food processing, raw oil and automobile manufacturing. The establishment of this partnership also laid a solid foundation for FANGKUAI Boiler to expand local food, chemical, automotive and other industries.
The company attaches great importance to this cross-border cooperation, and has sent several teams to visit the mainland of China. After a comprehensive evaluation of the company's overall strength, advanced technology and after-sales service, it was determined that FANGKUAI Boiler is a very worthy enterprise, and the two parties reached a good cooperation.
This year, FANGKUAI Boiler accepted investigations from leaders of the National Committee of the Chinese People's Political Consultative Conference, Comrade Jiang Zuojun, Deputy Secretary-General, Comrade He Jinping, Deputy Governor of Henan Province, Investigation Team of the Provincial People's Congress, Deputy Secretary of Anyang, and Mayor Jin Lei And inspections, and with the strong professional technology and various research and development results have been praised and encouraged by superior leaders.
This year, FANGKUAI Boiler brought a variety of boiler products to China International Corrugated Paper, Beijing ISH, 2019 Pharmaceutical Expo, auto parts and other industry exhibitions. As "the most influential brand of industrial boilers" and the leading domestic manufacturer of environmental protection boiler equipment, FANGKUAI Boiler shines in major exhibitions.
Among them, the "Europe" series products launched by FANGKUAI combine the characteristics of the corrugated packaging industry and completely solve the production difficulties of the industry. Through bold innovation and repeated attempts, they successfully reduced the input cost for users of the paper packaging industry. Reduce energy consumption.
At the 2019 Pharma Expo, Fang Kuai is an unshakable mission, providing safe and reliable solutions for the pharmaceutical industry in the recovery of condensed water and other well-known pharmaceutical companies such as Yunnan Baiyao and China Resources Pharmaceuticals. The industry response is evident.
This year, we signed strategic cooperation agreements with leading brands in the chemical, machinery, pharmaceutical, automotive, food, communications, heating, military and other industries to provide them with suitable boiler equipment and systemized solutions for a long time. These include but are not limited to well-known brands such as Qinghai Salt Lake, Yutong Automobile, Sankeshu Lacquer, Yili, Haier, ZTE, JD.com, and Huare.
Recently, FANGKUAI Group was invited to participate in the year-end event of the automotive supporting industry. When looking at the event location, it was actually in Beijing Yanqi Lake International Conference Center. This place is of great significance to FANGKUAI Group!
Just in 2014, leaders of various countries gathered at the Yanqi Lake International Conference Center in Beijing to celebrate the event. As the most influential official forum for economic cooperation in the Asia-Pacific region, the APEC conference venues adhered to the concept of "low-carbon environmental protection and technological innovation" during construction, which coincided with FANGKUAI Group's green environmental protection concept. As the only company in China As a boiler enterprise that has passed the test of ultra-low nitrogen oxide emissions, FANGKUAI Group has become a company that provides designated products for heating and hot water for the APEC summit.
At this annual meeting of auto parts industry, FANGKUAI Boiler shared the "Solution of Hot Water System Production in Auto Parts Industry" and got constant praise from various companies and leaders.
ENTER Engineering Pte. Ltd., founded in 2012, is one of the fastest growing companies in the oil and gas and industrial construction markets in Central Asia and the Russian Federation. It is currently responsible for trade in Uzbekistan, Russia, Kazakhstan, Singapore, Dubai and other countries. The company specializes in Engaged in the construction of industrial and technical facilities of various levels of complexity. With extensive experience in the oil and gas industry, ENTER Engineering has fulfilled EPC contracts and performed a variety of complex construction projects on a turnkey basis.
ENTER Engineering Pte. Ltd. also reached strategic cooperation with Fortune 500 companies such as LUKOIL Petroleum Corporation, Transneft OJSC, Arctic Gas OJSC, Achimgaz OJSC, Severneftegazprom OJSC, Uzbekneftegaz NHC, Uztransgaz OJSC, Mitsubishi Heavy Industries and other international companies.
