Condensing gas 4t condensing boiler lithuania combustion adjustment sense of mission and purpose 1. What is the main task of condensing gas boiler combustion adjustment is? The main task is to adjust the combustion at the same time meet the needs of external load amount of steam and qualified steam quality, safety and economy of boiler operation. 2. What is the boiler combustion adjustment experiment? There are plans to change some tunable parameters and control (ie, fuel supply mode and Air Distribution), on the combustion conditions to do a comprehensive adjustment and some individual indicators measured value, then the results will be made of the scientific analysis, from economic, security aspects are compared to determine the best way to run the whole operating characteristics and school equipment, such as testing, measuring and analysis work for the boiler combustion adjustment test. 3. condensing gas boiler combustion adjustment What is the meaning and purpose of the test? Boiler combustion adjustment experiment is designed to explore the operating characteristics and laws of the boiler, to determine the safety economic operation of boiler fuel in existing equipment and the nature of the conditions by testing. More comprehensive adjustment by burning test can be obtained on the economic characteristics condensing gas boiler at optimum mode of operation (including fuel, air, smoke, sodas and operating parameters of the working fluid and the boiler efficiency, Auxiliary indicators), provide the basis for strengthening the technical management of power plants, control equipment performance, the development of operational procedures, into the combustion automatic control system as well as good economic dispatch of the whole plant. Combustion Tuning Test purpose is to master the technical and economic characteristics of the condensing gas boiler operation, to determine the best way to run the boiler combustion system and various changes in the laws affecting factors, so as to ensure safe and economical operation of the boiler unit.
Recently, the National Energy Board, the Department of Ecology Environment issued "on the issuance of 2018, the provinces (autonomous regions and municipalities) of coal ultra-low emissions and energy-saving targets and tasks" (the "Notice"), called on all localities continued to do over coal low-emission and energy-saving, and promote the development of clean and efficient coal. Ultra-low emissions and to promote energy-saving work in the country has been more than two years, has been established to complete the task of transformation in the eastern provinces, the transformation of the focus shifted to the central and western regions, while the transformation of scope as technology advances and the increasing demand for policy gradually extended.
Under the "notice" requirement, this year nationwide, ultra-low emissions coal power reform objectives and tasks a total of 48.68 million kilowatts, energy-saving goal is to reach 53.905 million kilowatts. In 2016, the capacity of the units involved in the transformation of two to 254.36 million kilowatts, respectively, and 189.4 million kilowatts, good reform bear fruit.
President of the State Power Environmental Protection Research Institute Zhu France and China, said: "By the end of last year, a nationwide ultra-low emissions transformation target task completion rate has reached 71%," ultra-low emissions coal and transformation better, the eastern region has been basically completed, part central provinces ahead of the completion of the task of transformation.
In 2015, the former Ministry of Environmental Protection, the National Development and Reform Commission, the National Energy Board issued "the full implementation of ultra-low emissions and energy-saving programs of work-fired power plant", requires the completion of the eastern part of the overall transformation of ultra-low emissions before the end of 2017, the central region and strive in 2018 years basically completed, the completion of the western region in 2020. "2018 provinces (autonomous regions and municipalities) of coal ultra-low emissions and energy-saving task summary table" (hereinafter referred to as "transformation task list") shows that the eastern provinces have been basically completed the transformation of ultra-low emissions, not published this year transformation capacity unit task. But it is located in the Yangtze River Delta, Jiangsu Province, still issued 1.4 million kilowatts ultra-low emissions and energy-saving renovation target of 900,000 kilowatts.
Zhu France and China, said, "in accordance with the requirements of 2015, Jiangsu has completed the ultra-low emissions and energy-saving target in 2017. However, the new policy will be more units into the transformation range, Jiangsu this year, there is still the task of transformation. In June, the State Council issued a "winning blue sky battle three-year action plan" (hereinafter referred to as "three-year action plan"), required by the end of 2020, more than 65 tons of steam key areas of coal-fired boilers have completed ultra-low emissions and energy-saving. "
It is understood that "three-year action plan" prior to the implementation of energy-saving and environmental protection requirements only for the reconstruction of more than 300,000 kilowatts of conventional units, more than 100,000 kilowatts of power plant owned units. "According to the existing requirements, including Beijing and Tianjin and the surrounding areas, the Yangtze River Delta region and Fenwei plains, including the key areas, more than 65 tons of steam boilers are also included in the scope of the transformation will involve part of 100,000 kilowatts or less captive power plant units and industrial boilers. "Zhu France and China, said," "three-year action plan" in addition to the deadline of 2020, does not provide a specific timetable for the task. Next, the key areas are the provinces in accordance with the requirements of more units, boiler transformation. "
"Task of transformation" table displays, ultra-low emissions transformation capacity this year, mainly in the western region of Inner Mongolia, Shaanxi, Gansu, Xinjiang and so on. In the trend of ultra-low emissions overall speed of the transformation, central Shanxi, Anhui, Henan and other provinces in the region have been completed ahead of the transformation target ultra-low emissions, but energy-saving task still more arduous. Among them, Henan Province this year, energy-saving target capacity of 10.8 million kilowatts, Hunan has reached 9.995 million kilowatts.
Since the ultra-low emission transformation involves the emission of pollutants and other environmental problems, caused by the high social concern. In contrast, concern about energy-saving electric power mainly from the enterprises themselves. Zhu France and China, told reporters, on the one hand is the national energy saving policy requirements, on the other hand also in line with the needs of enterprises to reduce their own costs. At present coal prices continued to run high, coal companies operating pressure, reduce production costs even more urgent demand.
In 2014, the National Development and Reform Commission, the former Ministry of Environmental Protection, the National Energy Board issued "coal upgrading and transformation of energy saving action plan (2014-2020 years)", for energy-saving technology roadmap active coal-fired power units were enumerated, involving the master each link auxiliary equipment, environmental protection equipment and a total of 20 reform measures, in addition to "subcritical unit transformed into ultra (ultra) supercritical units", the rest of the technology have already matured.
In recent years, along with tighter environmental requirements, provide renovation and operation and maintenance services to the rapid development of environmental protection industry. In particular third-party environmental companies, with technical, cost and other advantages, occupy a certain share of power generation enterprise environmental transformation market. But a power industry experts said, is very difficult third-party independent companies to enter the field of environmental protection energy-saving power plant.
"Ultra-low emission increase in the transformation of the original system is new equipment, energy-saving and optimized for major transformation of existing equipment, and boiler plant, steam turbine plant than environmental protection enterprises to understand their own devices." The expert said, "Not only that as systems engineering, energy-efficient coal-fired units involved in the whole process of production, and plant operation economy, is closely related to security, not easily open to third-party companies. third-party companies to enter the energy-saving environmental protection than to enter the market face greater pressure."
The open recovery system recovers the condensed water into the feed water tank of the 4t condensing boiler lithuania. During the recovery and utilization of the condensed water, one end of the recovery line is open to the atmosphere, that is, the collection tank of the condensed water is open to the atmosphere. When the pressure of the condensed water is low and the self-pressure cannot reach the reuse site, the condensed water is pumped by the high-temperature water pump. The advantage of this kind of system is that the equipment is simple, the operation is convenient, and the initial investment is small; but the system covers a large area, the obtained economic benefit is poor, the environmental pollution is large, and the dissolved oxygen concentration in the condensed water is directly contacted by the condensed water. Increased, easy to cause equipment corrosion. This system is suitable for small steam supply systems, systems with a small amount of condensed water and a small amount of secondary steam. When using this system, the amount of secondary steam emissions should be minimized.
1.Safety operation: anti-back fire feeding system, temperature sensor, low water level protection device, over-temperature protection device.
2.Anti burn back feeding system: pellets feeding system adopt double stage screw feed. The first stage is for controlling the pellet feeding quantity to make sure enough pellet fuel. The second stage makes sure there is no excess pellet in the feed screw. So it is blank between the first stage and the second stage. There is no back-fire happen and make sure the safety operation. Through reducing the load of feeding system, the wood pellet boilers feeding device will have fewer fault.
3.Intelligent Control: we adopt microcomputer one-button operation, automatic feed automatic ignition, with the setting temperature, start and stop cycle, and fault alarm function, simple and easy operation.
4.Advanced combustion system: adopt Patent inside wood pellet burner, adopt special three side air supply system, which makes sure the pellet full combustion. Equipped heat recovery device makes the boiler efficiency can reach 93%.
5.Easy to maintain: wood pellet hot water boilers belong to atmosphere hot water boilers. There is no need for professional stoker. It is automatic wood pellets feeding and automatic ignition. User just needs to add 1-2 times fuel per day. Ash cleaning is very easy, User just needs to take out of the ash bucket at the bottom of the chamber.