2 Huang Bihai Xu Changjun and other heat medium furnace automatic ignition system transformation, oil and gas storage and transportation, 219956, 57.
Level of automation. The new ignition system designed and analyzed has the dual function of fuel gas. The fuel injection nozzle of the system is designed according to the venturi principle. It consists of the base nozzle gland and the burner. It has practical installation, small size, light weight and low transformation cost. advantage. The application of the new ignition system allows the heat medium furnace to be fully automated and economically significant.
The main method of the automatic ignition device for the heat medium furnace is the main furnace type used in the northeast oil pipeline. After many years of operation, the liquefied gas ignition system has the disadvantages of easy to leak and easy to leak safety factor, low condensation at low temperature, and ignition. The normal function of the heat medium furnace function. In response to the existence of the ignition system of the heat medium furnace, the engineering and technical personnel of the Agricultural Safety Station of the Changchun Oil Transportation Management Office have carried out transformation and developed a new type of ignition burner, which has been successful.
The trial operation has been more than half a year, and the all-weather high-efficiency unattended and closed oil transfer function of the heat medium furnace has been fully utilized and fully automated.
Liquefied gas ignition system and its existence 1 liquefied gas ignition system heat medium furnace liquefied gas ignition system. The ignition procedure is controlled by a computer. The specific steps are 1 electrode ignition; 2 the liquefied gas solenoid valve is opened, the liquefied gas is ignited by the ignition burner; the fuel oil solenoid valve is opened to ignite the fuel oil; and the liquefied gas solenoid valve is closed.
The heat medium furnace has been in operation for many years, and it is found that it is difficult to realize the remote terminal control of the heat medium furnace under unattended conditions. The main reasons are as follows.
The northern winter climate is cold, and the liquefied gas cylinders are easily condensed outside, which affects the furnace. Changchun Oil Transfer Management Office usually takes the liquefied gas bottle to the front of the furnace when the furnace is started, and then moves the liquefied gas bottle to the indoors after the furnace is started, ensuring normal use when the next furnace is started, which affects production and increases workers. Labor intensity.
During the operation of the heat medium furnace, the furnace will be shut down when the operating parameters are exceeded. In this state, if the heat medium furnace can be automatically started, when the operating parameters return to normal values, it is necessary to make the heat medium furnace not remove the liquefied gas cylinder and close the manual valve during operation, otherwise the heat will be affected. Automatic furnace start function of the furnace. In actual operation, especially in winter, it cannot be done.
Liquefied gas has the characteristics of being volatile and leaking, and there is no leakage point in the pipeline and strict sealing of the solenoid valve is critical. Otherwise, not only will the consumption of liquefied gas be large, but it will also bring hidden dangers to the safety of the furnace area.
The new ignition system and its superior heat medium furnace new ignition system 2. The ignition program is also controlled by the computer, the specific step is that the ignition electrode is fired. The air solenoid valve and the fuel injection solenoid valve are opened, and the compressed gas is ejected through the pilot burner. A negative pressure is formed at the nozzle, the fuel is sucked out, and the atomization is fully ignited. Turn on the fuel oil solenoid valve to pump oil and ignite the fuel oil. Close the air solenoid valve and the pilot fuel solenoid valve.
The new ignition system uses oil as the ignition fuel and has the following advantages.
The newly designed ignition system can select diesel oil or kerosene which is not easy to condense as the fuel for fuel according to the climatic conditions in different places. The wind pressure of the air compressor in front of the furnace is used to ensure the pressure. For example, the four heat medium furnaces that were rebuilt by the Nong'an Station were selected from No. 35 diesel oil and operated in an environment with a temperature of 31 in winter in 1999. Without any failure, the automatic furnace was completely realized.
Since the fuel can be stored in the oil tank, it is not easy to volatilize and leak, which not only reduces the labor intensity of the workers, but also effectively protects the safe production of the furnace area.
The new ignition system is easy to maintain, the equipment is simplified, and the operation in front of the furnace is standardized.
The newly designed ignition system has dual functions of fuel and gas, ensuring the reliability and suitability of the ignition system.
The fuel injector is a key component of the new ignition system. The burner is composed of a base nozzle gland and a burner, and has the advantages of convenient installation, small size, light weight and low transformation cost. The structure of the fuel injection nozzle is designed according to the principle of the venturi tube 2, and the working principle is provided by the air compressor. The compressed air of 0.2, 0.08, 33 forms a sub-atmospheric negative pressure zone at the nozzle through the air inlet hole. Under the action of atmospheric pressure, the fuel is pressed into the fuel burner through the oil inlet hole, and is mixed with the air at the nozzle. Atomization, ejected from the burner, ignited by the ignition electrode.
Economic analysis To ensure that the fuel does not condense in winter, some pumps in the northeast pipeline stand in the vicinity of the furnace area to build a liquefied gas chamber, and the electric heating pipe is used to connect the heat medium furnace. The cost is about 104 yuan for 2 fathers. It has occurred, and there are shortcomings such as maintenance difficulties and high maintenance costs. The new ignition system only needs to purchase the fuel injection nozzle, and the compressed air is supplied by the heat medium furnace atomizing fan, and the cost is only 500 yuan. In the consumption of liquefied gas and fuel, the consumption of the Nong'an station is statistically 1.
Years of heat medium furnace operation quantity consumption of the month liquefied gas cylinders lead fuel year. According to the calculation of 35 yuan of fuel in March 2000, No. 35 diesel, 2.4 yuan liquefied gas 35 yuan bottle, the liquefied gas consumption per furnace is 34.3 yuan per month. The monthly consumption of the stove is 2.26 yuan.
The above calculation results show that the use of the fuel injection burner can greatly reduce the consumption cost of a single furnace. If 38 heat exchangers in the Northeast Pipeline and nearly 100 heat medium furnaces in the country are retrofitted, the economic benefits will be even more impressive.
Zhu Xueming Oil Transfer, Petroleum Industry Press, Beijing. 1998.
Yuan Enxi Engineering Fluid Mechanics, Petroleum Industry Press, Beijing, 1992.
Edited by Qiu Binquan, a professor-level senior engineer, born in 1940, graduated from the Department of Engineering Chemistry of Tsinghua University in 1963, engaged in scientific research on oil and gas storage and transportation since 1976, and enjoyed special government allowance since 1.93, former chief engineer of China National Petroleum Pipeline Science Research Institute. He is currently the director of the Science and Technology Committee of the Academy.
Meng Rongzhang engineer, born in 1972, graduated from Southwest Petroleum Institute in 1997 with a master's degree in storage and transportation. Now China National Petroleum Pipeline Engineering Co., Ltd. is engaged in pipeline design.
Yao Wei senior engineer, born in 1956. He graduated from Shenyang Institute of Chemical Technology in 1984 with a major in automation. He is currently the deputy general manager of Beijing Natural Gas Gathering and Transportation Company.
Yang Yonghe, born in 1970, graduated from Xi'an Petroleum Institute in 1993 with a major in chemical equipment and machinery. Now he is engaged in oil production management at the Ku'er Oil Transportation Station of the China Petroleum Pipeline Company.
Zhao Zhenrong engineer, born in 1960. He graduated from the former China Petroleum and Natural Gas Pipeline School in 1981. He graduated from Huanghe Workers University in 1990 and is currently the deputy director of the dispatching center of the Pipeline Storage and Transportation Branch of Sinopec Corp.
Xu Zhongquan, senior engineer, born in 1944, graduated from the Southwest Petroleum Institute in 1967, and now Zhejiang Jinzhou Group Co., Ltd. is engaged in technology management.
Professor Feng Shuchu, born in 1938, graduated from the Petroleum Institute of Petroleum Science and Technology of Beijing Petroleum Institute in 1962. He is currently the director of the Oil and Gas Research and Research Institute of the Petroleum Research Institute and a member of the Academic Committee of the Petroleum University.
Liu Yutang engineer, born in 1966, graduated from Northwestern Polytechnical University in 1989 with a major in thermal engineering. Now Sinopec Pipeline Storage and Transportation Company Xinxiang Oil Company Wuyi Station is engaged in technical management.
Gu Ming engineer, born in 1958, graduated from the former China Petroleum and Natural Gas Pipeline Workers College in 1983, and is currently the director of the market development department of Xinxiang Oil Transportation Company of Sinopec Storage and Transportation Company.
Zhong Furong senior engineer, born in 1934, graduated from the Physics Department of Beijing Petroleum Institute in 1961 and is now retired.
Song Youhui engineer, born in 1957, graduated from the former China Petroleum and Natural Gas Pipeline Workers College in 1982, and now the Beijing Acupuncture College is engaged in computer teaching.
Zhang Jianli is a senior engineer born in 1945. He graduated from the Petroleum University in 1970 with a major in storage and transportation. He is currently the Director of the Safety Department of Sinopec Pipeline Storage and Transportation Company.
Associate Professor Lu Sheng, born in 1963, graduated from the University of Computer Science in 1998 with a master's degree. He is currently the deputy director of the University Network Center and a master's tutor.
Wu Baofu, an assistant engineer, was born in 1956. He graduated from the Central Party School of Economics in 1995 with a major in economic management. He is currently the deputy director of the Pipeline Oil Transportation Department of Qinghai Petroleum Administration.
Liu Peijun, an assistant engineer, born in 1974, graduated from the Southwest Petroleum Institute in 1997 with a major in petroleum storage and transportation. He is now engaged in technical management at the Dashiqiao Oil Transfer Station of the Dalian Oil Transportation Management Office of the Petroleum Pipeline Company.
Huang Bihai technician, born in 1974, graduated from Southwest Petroleum Institute in 1997 with a major in oil and gas storage and transportation. Now Changchun Oil Transportation Management Office is engaged in technical management.
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