In the operation of gas-fired hot water boilers, it is necessary to deoxygenate the feed water. The main reason is that oxygen is the main corrosive substance in the boiler water supply system. The oxygen in the water supply system should be removed quickly, otherwise it will corrode the boiler water supply system and components, and the corrosive iron oxide will enter the boiler, deposit or adhere to the boiler On the pipe wall and heating surface, insoluble but poor heat transfer iron scale is formed. Corroded iron scale will cause pits on the inner wall of the pipe and increase the resistance coefficient.
Therefore, in order to ensure the safe operation of the boiler, it is necessary to deoxygenate the boiler feed water; in the national standard "Industrial Boiler Water Quality" (GB1576-2001), the country puts forward strict requirements on boiler water quality, requiring evaporation Steam boilers with a capacity greater than 2t/h and hot water boilers with a rated power ≥4.2MW must be deoxygenated.
Zhengzhou Fangkuai Boiler Factory has summarized some operating skills when deoxygenating the feed water of gas-fired hot water boilers, hoping to help users better use the boilers.
1. Thermal deaeration
Thermal deoxygenation can not only remove oxygen in water, but also carbon dioxide or other gases. The deoxygenated water will not increase the salt content, nor will it increase the dissolved amount of other gases, the operation control is relatively easy, and the operation is stable and reliable.
2. Vacuum deaeration
Vacuum deaeration is performed at lower than atmospheric pressure (vacuum degree 600~700mmHg). It belongs to low temperature deaeration. Then the so-called vacuum deaeration shows one thing, that is, the degree of vacuum must be maintained. The quality of vacuum deaeration effect is closely related to the degree of vacuum.
3. Chemical deoxygenation
Chemical deaeration is also divided into different types, steel scrap deoxidation; sodium sulfite deoxidation; hydrazine deoxidation; resin deoxidation, etc. Different types of chemical deaeration methods have different characteristics. Of course, the water temperature requirement of chemical deaeration is greater than 70°C, 80~90°C has the best effect, and 20~30°C has the worst effect of deoxygenation.
4. Analysis and deaeration
The working principle of deoxygenation is to intensively mix and contact the oxygen-free gas with the feed water to be deoxygenated, so that the oxygen dissolved in the water is desorbed into the gas, so that the feed water achieves the purpose of deoxygenation through such circulation.
You can choose the appropriate deaeration method according to your own use of gas-fired hot water boiler to achieve the purpose of deaeration.
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.
