Maintaining the normal operation of the boiler is a professional and technical task. Considering that the overall quality of the stove personnel engaged in this work is different, there are some deviations in many knowledge perceptions. Based on years of professional experience, Fangkuai boiler technicians are responsible for steam pressure control during the operation of your popular boiler.
First, the boiler steam pressure allowable fluctuation value.
The choice of boiler steam pressure depends mainly on the needs of the user. The steam pressure is low, the pressure-bearing components are safe and the energy consumption is also reduced, but the steam quality produced at the same time will be relatively poor and the heat is low. Humidity is difficult to meet the needs of some disinfection, sterilization, breeding, heating and power generation. The steam pressure has high energy consumption, and the corresponding steam equipment, piping and valves are also subjected to high pressure, and the maintenance requirements are also stricter. Heat loss and leakage losses during steam production and transportation will also increase. At the same time, the salt carried by the high-pressure steam increases with the increase of the vapor pressure. These salts may increase the possibility of scaling, overheating, air bubbles, blockage or even bursting of the heated surface of the water wall tube, the smoke pipe, the drum and the like. . The entry of steam salt into the steam turbine will reduce the flow area of the turbine and reduce the internal efficiency, which will seriously affect the heat transfer efficiency.
Therefore, the furnace personnel must install the specified working vapor pressure for operation, generally allowing the fluctuation of the steam pressure to be 0.05-0.15 MPa.
Second, the basic cause of changes in steam pressure.
1. External disturbance: The change of steam pressure caused by external load change is called external disturbance, referred to as “external disturbance”. When the external load increases, the steam consumption of the unit increases, and the boiler has not been adjusted to adapt to the new working conditions. The evaporation of the boiler will be less than the external demand for steam, the material balance relationship will be broken, and the steam pressure will drop.
2. Internal disturbance: due to changes in the working conditions of the boiler itself, the change in steam pressure is called internal disturbance, referred to as "internal disturbance". The amount of steam required by the outside world does not change during operation, and the steam in the evaporation zone is caused by changes in the combustion conditions of the boiler (such as unstable combustion or changes in fuel volume and air volume) and changes in operating conditions (such as heat transfer) in the boiler. The amount of change changes, and the material balance relationship between the boiler evaporation amount and the steam demand is destroyed, so that the steam pressure changes.
Third, the danger of boiler overpressure.
1. Metal materials have their specific metal material yield strength at a certain temperature. Over-pressure operation will result in thermal fatigue of metal materials. Operation beyond the fatigue limit will result in a decrease in yield strength. Breaking the yield limit will lead to rapid creep. Change until it bursts.
2. The strength of the metal material can be compensated for by increasing the wall thickness of the metal under certain conditions. The increase in wall thickness increases the temperature difference between the inner and outer walls, and the heat transfer rate decreases. The wall temperature difference will cause the thermal stress of the metal material to increase and aggregate.
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.
