condensing gas steam boiler for distillation plant
China's energy revolution continues in depth. According to the director of the National Energy Regulatory Agency, Mr. Li Ye provided by the 2018 annual generating capacity of 6.8 trillion kwh of nuclear power, hydropower, wind power, solar energy and other non-fossil energy accounted for about 30%.
In total energy consumption of 4.62 billion tons of standard coal, a non-fossil energy accounted for 14.3%. Li Ye said the 2020 schedule is expected to achieve a 15% share of the consumer target. Coal in primary energy consumption is first reduced to 60%.
According to local NPC and CPPCC news recently held a show in 2019, and more through the sky to defend the war, to production capacity and other strategies, from industrial, civil and other aspects, to further reduce coal consumption, increase the use of natural gas, solar, wind power and other energy varieties . "Minus coal" has become an important theme in 2019 to promote local energy reform.
By contrast, natural gas production has improved throughout the year, an increase of 7.5% last year, to reach 161 billion cubic meters; imported 90.39 million tons, an increase of 31.9%, increase speed to accelerate to 5%.
At the same time, optimize the structure of power, nuclear power, wind power, solar power double-digit growth, increased by 18.7% over the previous year, 16.6% and 19.6%.
Outside central planning, where two sessions news shows, Beijing, Tianjin, Hebei, Liaoning, Heilongjiang, Hubei, Henan, Anhui, Fujian, Sichuan, Xinjiang and other provinces (cities, districts) made from the resolve of coal production capacity, exit behind coal units , clean heating, natural gas pipeline network construction of related facilities, the development of various aspects of clean energy such as power production, transportation and consumption, promote energy revolution.
Beijing, Tianjin, Hebei, Henan, Anhui and other places, our total coal consumption has been identified as key areas of control. Of the total coal consumption in 2018 before four regions decreased by 10% compared with 2015, down 5% in Anhui Yangtze River Delta region is located.
Beijing: According to the statistics show that in 2018, Beijing completed 450 village "coal to clean energy", the basic Plains Coal-free, high-quality clean energy accounted for more than 96%, the basic bid farewell to coal pollution. To prevent this complex burning coal for a rebound, no coal rank consolidate control results.
Tianjin: 2018, Tianjin has also ushered in the $ 18 billion Three Gorges Group offshore wind projects, the completion of coal to electricity, gas and central heating coal to build up a total of 238,000. 2019 will promote low-nitrogen transformation and construction work clean diesel transformation of mechanical gas-fired boilers, in an orderly urban and rural residents clean alternative to coal for heating.
Hebei: 2018, Hebei Yajian completed 14.01 million tons of coal, thermal power 550,000 kilowatts; 2019 will continue to promote coal reduction mission, planned Yajian 10 million tons of coal, 500,000 kilowatts of thermal power, continue to implement the clean winter heating engineering.
Henan: Henan last year to resolve the coal production capacity 8.25 million tons, the elimination of backward coal units 1.077 million kilowatts. This year plans to phase out coal units behind the transformation of about 1.5 million kilowatts, the main city of Zhengzhou City, to promote coal units cleared and the main city of Luoyang coal units basically cleared to accelerate the development of clean power, new renewable energy power generation installed capacity of 1.8 million kilowatts .
Henan Province is the only one mentioned in clean energy consumptive province, 2019 will continue to promote energy outside the lead channel construction, the province interoperability, optimizing the energy structure and layout. Comprehensively promote green electricity into the Henan construction, improve the ability to absorb foreign clean.
Qinghai: According to preliminary statistics, director of State Grid Energy Research Institute, the Institute for New Energy and statistics, in 2018 the scope of the province supporting the new energy transport grid construction, new energy sources to enhance the delivery capacity of 3.5 million kilowatts. Qinghai photovoltaic power generation efficiency of over 95%.
Anhui: Anhui Province last year to exit the coal production capacity 6.9 million tons, the new renewable energy power generation installed capacity of 3.05 million kilowatts; energy-saving plan to complete the upgrading of more than 1.26 million kilowatts coal units this year, to promote the reduction of coal consumption alternative, withdraw excess coal production capacity of 1.65 million Ton.
Sichuan: The hydroelectric province, the focus of China's largest clean energy base in Sichuan in the "alternative energy", will accelerate this year to enhance the level of electrification, transforming the province's abundant clean energy advantages into development advantages; to focus on deepening the reform of power factor markets reform, construction of hydropower absorptive industries demonstration zone, the development of large data, electrolytic hydrogen and other green energy carrier industry.
Fujian: Fujian will accelerate to promote nuclear power, pumped storage, LNG receiving station, natural gas pipeline network and other major energy projects, for new annual installed capacity of more than 2 million kilowatts of power; perfect system of paid use of environmental resources by energy rights.
Deputy director of the Energy Development Center edify the National Energy Renewable represent the future of green certificates market will be issued towards the expansion of the scope of the certificate, the adjustment period, transactions, etc. due to the quota should be monitoring and evaluating mechanisms obligations, non-hydro renewable energy, expand trading partners development direction.
Hot water boiler for users to solve the "coal" urgent at present, energy conservation and building sustainable economic model has become a national priority, but only our coal utilization hovering around 30%, far below the 78 % of the international average. Steam boiler is an energy conversion device, the energy input to the boiler fuel chemical energy, electrical energy, thermal energy and other forms of high temperature flue gas, and after converting the boiler, the steam output having a certain outside thermal energy, high-temperature hot water or an organic carrier. Biomass boiler categories: biomass boilers Horizontal, vertical biomass boilers. Biomass gas thermal oil heaters, biomass condensing steam boiler for distillation plant, biomass hot water boiler, biomass oil furnace. Gas-fired steam boiler burner underlying mode, two-pass configuration, the fuel combustion, the boiler operation is stable and take up less space, while the spoiler is inserted smoke tube, smoke slow speed, increase heat transfer, a high thermal efficiency, reducing user fees Therefore, improving the utilization of coal combustion has become essential. Currently, coal-fired hot water boiler control system to achieve precise control and real-time monitoring. By controlling the water temperature, the fan speed to achieve a controlled, to ensure the stable combustion furnace pressure and coal, which saves coal, but also to ensure safety. Industrial production in the boiler and heating primary energy into secondary energy of important equipment, has been widely used in industrial production and daily life. Coal-fired hot water boiler control scheme is reasonable and convenient way to monitor, steady state operation, the whole process of thoughtful service, users get a good feedback. I believe in the future, coal-fired hot water boiler intelligent control scheme can serve a wider field of industrial production, as well as hotels, schools, hotels, residential heating, bath, hot water and other fields, coal cost savings for users, improve combustion efficiency, ensure the safe operation provide a solid guarantee. Completely solve the problem of long-term accumulation of the user, the water temperature stable. Water temperature set by the ambient temperature, grate speed difference adjustment according to the actual water temperature and the set temperature of the water, i.e. adjusting the amount of coal boiler, to ensure the stability of the water temperature. Outstanding energy saving. Grate speed changes to the feedforward signal, in conjunction with flue gas oxygen content signal or the furnace temperature, blower speed control using the PID algorithm, to ensure full combustion of the coal, to improve the utilization of coal, reduce emissions of harmful substances. Excellent safety performance. To change the fan speed as a feedforward signal, the PID control calculation and induced draft fan speed according to the furnace pressure value, to ensure the stability of the furnace pressure. This paper introduces a control algorithm based on the level of intelligence of the new big jump lag PID. After control of embodiment, given a certain waiting time to observe the effect, and to determine whether further embodiment control, multi-parameter input and multiple output control mode based on performance parameters.
Operation of the gas boiler has what measures? Gas-fired boiler in many large factories or companies which, basically is a kind of device can see, of course, such a device is actually in the process of actually running, more or less have some of their own operating standards, from the current situation, when they run have more to do security measures. So what are run gas boiler measures at run time? (1) After a series of gas-fired boiler inspection, maintenance, basically in the process of running to them in accordance with the relevant requirements to run, there will have a lot of protection, even if they want to determine the importance of the protection of the entire work. (2) gas-fired boiler in the process of ignition, more or less likely to occur will require some regulations, such as they might meet some of the fuel, but the fuel pressure in the whole process of evaporation or mist, more or less will meet some of stroke, some extent, when the entire examination will also return to substantially a normal state, they energize the disable signal is short, when the flow rate of the whole is greater than a single second branched oil gun 0.65 kg when it should launch this gun running. (3) gas-fired boiler at the time of ignition, be sure to pay attention to look at all of the furnace temperature, the temperature inside look at the major, and the entire main steam pressure in the process of rising more or less there will be some obvious favoritism, or the case of speech do not rise, so then we should immediately go to the examination of fire tank. in addition, if found throughout the fuel into the furnace did not catch fire, it would tightly shutdown.
Combustion characteristics and operation of condensing steam boiler for distillation plant steam for steam boilers everyone know how much will the following to let everyone have a preliminary understanding of the steam boiler by two aspects, but also hope to give a friend wanted to buy a steam boiler of some help. Chain-type layer is generally fixed combustible fuel steam boiler chain grate or a grate (the traveling), it is fixed only for small coal-fired boilers. The most commonly used medium-sized coal-fired boilers or for chain grate, as the chain travels will gradually sent to the tail of the coal grate in the process of moving complete fuel combustion tube from the inlet to the lower part of the grate grate internal supplemental air required for combustion, ignition top-down, no ventilation grate uneven seam and around the relative movement, through non-flammable. After heating area of the heating flue gas temperature of the working fluid designed to flow through the same furnace hot flue gas and heating surface arranged in the other exhaust flue boiler. Incidental chain grate type, scale type, beams, and other means, the current domestic applications mainly for small and medium-sized joint type and scale type chain grate, generally large chain grate beam type. Former steam boiler steam boiler system to start all waterproof steam cylinder valve open, let go condensate. The inlet steam valve slightly open, to warm up the cylinder, drain cocks to be out after closing the steam, drain cocks. The steam valve was then opened progressively larger until drainage tank vent cock and water out there, and closed vent cock drain cocks. Turn on the water supply valve to the boiler feed water. Steam boiler in operation if there is gas in timely attention tank, water tank periodically open the air discharge valve, in order to avoid air resistance tank, the influent. Pump flow regulator bypass should be adjusted to achieve the degree of opening of the valve, and not with a method of adjusting the outlet valve is adjusted. At the rated discharge pressure of the pump, which inlet pressure should not exceed a predetermined value. Inlet and exhaust pressure difference should be maintained within a predetermined range. Steam boiler steam valve should be shut down first, then turn off the water valve and turn on the water valve is open, then turn on the water faucet open the lower part of the tank and cylinder, the cylinder water drain. Of steam cylinder reciprocating pump, which cylinder two stroke difference should not exceed 5% of rated travel.