The 7 ton wood biomass boiler produced by ZG boiler is a chain grate biomass boiler that uses a layer-fired + suspended combustion mode to burn lighter wood pellets on the grate and subtly The membrane water wall generally used for power station boilers is applied to the boiler, which increases the heat transfer area of the boiler and makes the combustion more complete.
The level of development of the industry and domestic and international comparative analysis gap - fuel gas-fired boilers, biomass boilers 1 Fuel gas-fired boiler fuel gas-fired boiler horizontal development originated in Europe, such as Cochran, Lancashire; therefore Horizontal Oil and Gas Fired Boiler Technology Europe has been a leader in Europe again as the benchmark German boiler manufacturing technology, currently well-known European brands Bosch (Rolls), Viessmann, Ferroli, Hoval, Cochran, United States Fulton, House special, CB boilers. In Europe three-pass boiler mainly horizontal, or add tail economizer, exhaust minimum design around 110 deg.] C, was added a small amount of the exhaust gas temperature around the condenser 55 ℃; U.S. horizontal boiler return in two or four-pass structure. Our horizontal boiler developed rapidly, mainly in the three return main part of the condensing boiler using two horizontal return plus energy-saving and condenser, structural design has been very mature, manufacturing level has been less than foreign companies. Fuel gas-fired water tube boiler technology comes mainly from the former Soviet Union, famous brands Alstom, the United States and 芬兰诺威特 CB, water tube boiler design China has reached a high level, there are double drum "D" type, "O "type, the three drum type" A ", single drum" π "type, forced circulation" π "shaped tube frame structure design are mature, the domestic market for the introduction of 芬兰诺威特 plumbing tube furnace and convection combination smoke type furnace, overhead burner; Alstom tube furnace convection module assembly for the front plus the flag type furnace. In Europe, condensing gas boiler is widely used, but the European condensing boilers are small capacity boilers, less large condensing boiler; a monolithic multi-condensing boiler, furnace boiler applied less ordinary form of a condenser; less 1.4MW condensation boiler with a premix burner; multi-cast aluminum-silicon alloy material and a steel material; heating surface enhanced heat transfer using a special multi-heated element; and multiple heat pumps, solar heating systems and other components, thereby obtaining a higher energy efficiency. While the United States is currently on the rise in the condenser plus the original boiler flue gas condensing heat recovery work, 316L are connected through grooved tubes with removable ferrule connector and header, to facilitate maintenance and replacement. Europe oil and gas boilers have a predetermined minimum boiler thermal efficiency, the lowest thermal efficiency divided by the low calorific value of three categories, namely: a standard boiler efficiency of 82 to 88%; low boiler efficiency of 88.5 - 91.5%; condensing boiler, 97.5 to 99.5% efficiency. European EN6762000 regulations on NOx emissions from burning natural gas value points 1, 2, Level 3 is the lowest emissions, NOx emission value ≤80mg / kWh; US Government regulations California natural gas-fired boiler NOx emissions of different capacity is 10 ~ 25mg / m3 (standard state). Technology development and product manufacturing quality of fuel gas-fired boiler of "Twelfth Five-Year" period made considerable progress, compared with similar foreign products, the gap is not very big, not only greatly improve the level of automation, thermal efficiency and appearance of the product quality has improved very fast, gradually replacing the imported products, imports of fuel gas-fired boiler sales decline every year in our country, but our fuel gas-fired boiler technology still has the following problems: ① domestic production of large gas-fired boiler fuel companies, most based on imitation, product performance quite different; ② domestic only a few manufacturers have the ability to test the boiler plant; boiler for different operating conditions for the verification test less, but rather in order to meet the test requirements factory boiler; heat transfer performance were inadequate in addition to a single heat transfer element research and capacity testing. Compared with European products ③ domestic product, manufacturing details, but also save big big gap on the apparent quality. European industrial design, details of the deal in place, the overall appearance. ④ domestic condensing boiler technology, low nitrogen emissions, and improved technology requires further study; relevant technical standards and specifications needed to improve and increase the thermodynamic calculation of aspect smoke wind resistance calculation, performance test and evaluation. 2 boiler technology research of biomass boilers biomass was first taken seriously in the Nordic countries, followed by the United States carried out a lot of research and development work. Biomass boiler technology is relatively common applications, technology is more mature in foreign countries. They developed products are: ① circulating fluidized bed boiler combustion raw material; ② large-scale burning of wood waste boiler circulating fluidized bed power generation; ③ straw water-cooled vibrating grate boiler, are representatives of foreign development of biomass boilers. Biomass combustion technology and our relation to Germany, Sweden, Denmark, Japan and other countries still in its infancy, the need for pretreatment of biomass, etc., combustion mechanism, boiler design, corrosion, emission reduction and other key technologies research and a breakthrough in order to reduce dependence on coal, oil, and promote the development of related products. The gap between domestic and biomass boilers are mainly: ① foreign biomass boilers generally to large-scale, automated heating direction, more varieties of biomass feedstock used, relatively complete supporting facilities, boilers used for civil applications, using a water-cooled furnace row structure. ② domestic biomass boilers are generally used for power generation. Combustion way they use chain grate, or reciprocating grate combustion CFB combustion mode. ③ uncertain national policy development of biomass boilers, emission requirements around the biomass boilers of different pollutants, resulting in the pace of development of biomass boilers are different. ④ biomass boiler system of design, technology is not advanced enough, need to continuously develop advanced products and technology, especially boiler combustion technology, designed to optimize product performance, environmental emissions targets need to be strictly controlled and continues to increase.
Comprehensive reduce coal consumption, a few days ago, Baoding, Hebei Province issued a "blue sky Baoding win the Battle of three-year action plan" (hereinafter referred to as the "Program"), "plan" put forward specific solutions.
First, the heating pollution control
1, to reduce total coal consumption
Adopt an integrated coal reduction measures to reduce coal consumption. Reduction of new coal project alternatives. Complete bulk coal clean alternative area designated as a "ban on coal zone", in addition to electricity, central heating and raw coal coal-fired outside the "clear." Promote the use of clean coal, non-coal for electricity cuts, increase the proportion of electricity from coal. Enhance the proportion of clean energy, and actively develop renewable energy. Industrial Waste efficient alternatives such as coal and waste heat supply heat. Multi-channel expansion of natural gas supply, accelerate the construction of natural gas production, supply and storage sales system, develop non-fossil clean energy, give priority to renewable energy generation Internet, and actively carry out the heat, wind, solar and biomass energy use pilot projects. Encourage the development of biomass thermoelectric County have the resources to conditions of heat and power, biomass briquette boilers and scale natural gas chemical and biological substances. By taking measures to reduce coal comprehensive, complete province to decide Yajian coal consumption targets.
2, accelerate rural clean heating
To proceed from reality, should the electric power, gas should the gas, the coal should be coal, it should be hot is hot, the raised ring Beijing, the main city of Central City and other plain areas, rational distribution of science, science and progress targets set number of transformation to ensure the safety of the masses warm winter.
① heating diversified towns, villages conditional alternate embodiment of central heating.
② the completion of basic insurance North "ban on coal zone" and change to gas, electric construction of the main city, the main city ring accelerate dispersion of coal-fired and alternative Baonan key counties, and strive to three years to a total ban on the use of decentralized heating fuel Plains coal. "Substitution of gas for coal" adhere to the "gas will change" to ensure safe construction, safe use, security management, gas boiler energy efficiency of not less than level 2. The development of gas "pressure uninsured people" program, detailed list of contingency plans.
③ local conditions and actively promote photovoltaic solar, wind, biomass, geothermal heating mode, the implementation of solar heating pilot demonstration projects.
④ can not be implemented in rural mountainous areas clean heating transformation, and actively promote clean coal, and improve supply security system, the implementation of clean coal underpinning policy.
⑤ support agricultural production priority use of renewable energy, encourage the use of gas-generation coal, electricity generation of clean coal and other fuels such as coal generations, the phasing out of agricultural production in the plains with scattered coal-fired. 2019 basically completed the bulk of agricultural production of coal governance.
3, accelerate urban central heating
Promoting cogeneration heating energy structure, large-scale coal-fired boilers, geothermal energy, industrial waste heat as the main heat source, natural gas, electrical energy, biomass and other as complementary. Making full use of industrial waste heat, the conditions of the county to implement a city of a centralized heat source, synchronized planning and construction of central heating pipe network, and promote town extends to the surrounding heat source. Develop distributed heating gas boilers, electric boilers and other heat storage. Scientific and rational use of geothermal heating, into a film support regional development and utilization of geothermal heat pumps and the construction of gas distributed power station. Urban central heating can not cover all the villages in the implementation of clean energy alternatives.
4, strengthen the clean energy supply security
Establish a sound working mechanism of gas, emergency power supply security, oil and gas pipeline protection, on the basis of 2017 filled the gap on natural gas, natural gas plan focus on incremental substitution of gas for coal project in 2018, the 2018-2019 heating season to ensure that dual-generation project gas, electricity supply effectively improve the city's energy level security operation. Strengthen protection for air supply and power supply capacity, speed up the layout of the building and the city and county levels peaking gas storage facilities supply business, accelerate the improvement of the power grid and gas pipeline construction.
5, strengthen the bulk coal market and poor quality coal for control
According to sector regulation, local management, levels of responsibility and "who approved, who control", "who is in charge, who is the principle of supervision", strict bulk coal production, processing, storage, sale and use of corporate governance. Strengthen departmental interaction of law enforcement, strengthening the floor management to crack down on sales (including online sales) and use low-quality coal for violations. Strict control of industrial and civil coal quality, strict implementation of "coal quality coal for civilian goods" (GB34169-2017) standard, the quality of coal supplied to customers production and processing enterprises must meet the "industrial and domestic fuel coal" Hebei (DB13 / 2081-2014) local standards.
6, out of the transformation of coal-fired boilers to strengthen and deepen governance
Demolition firm covering central heating boilers scattered coal-fired in the area. The completion of the city 35 steam tons / hour and coal-fired boiler, stove and stove operating a small coal stove replace the task of transformation. Before the end of 2019, more than 35 tons of steam / h coal-fired boiler basically completed colored plume governance reform and ultra-low emissions, coal-fired boiler to retain the overall emission limits and achieve energy efficiency standards. Promote clean coal-fired boilers. A ban on new 35 steam tons / hour and coal-fired boilers. The main city and counties (cities, districts) ban on new built-up area 35 steam tons / hour and below a biomass boiler, more than 35 tons of steam / hour biomass boiler to achieve ultra-low emissions standards. Out central heating pipe network coverage and bulk coal fired boilers in the range, it does not have the area in cogeneration district heating conditions, and the like may principle of volume replacement, construction of large-capacity coal-fired central heating boilers alternative. Start the implementation of the transformation of low-nitrogen combustion gas boiler.
7, improve energy efficiency
Implementation of dual control action the total energy consumption and intensity. Improve energy efficiency standards, develop, promote energy-saving technologies and products to achieve key energy industries, energy-saving equipment standard full coverage. Increase efforts to promote green buildings, new urban civil implementation of green building standards. Promoting intelligent heating system reform, promote the transformation of urban residential energy efficient building renovation have value, promote Murai housing wall energy saving, improve energy efficiency of urban and rural housing construction.
Energy saving steam boiler which is mainly used in the field when it comes to steam boilers, as one of the two types of boiler different from the wood-fired hot water boiler for 3 ton capacity, steam boiler hot water boiler is different from most of the characteristics used in civilian applications, it is divided into more application ranks of industrial boilers. With the development of society, the community and the relevant state departments increasingly began to focus on the natural environment and governance issues, energy saving and environmental protection in recent years has been a hot topic, energy saving steam boilers phase came into being. So, energy saving steam boiler is mainly suitable for the following areas in which it briefly summarize for everyone to share a number of related areas: Food Industry Related:?. The extraction of edible oil heating; bread baking heat; candy production facility heating; grain drying An apparatus for heating and the like; 2 metallurgy, casting and machining industries related: pickling tank, tank cleaning and other heating; plating bath, Lu anode plate heat oxidation vessel and the like; phosphate treatment apparatus for heating; heating the varnish application and drying; 3. Related road works: heating the asphalt dissolved; bitumen insulation; 4 related building materials industry: thermal coagulation concrete member; dried with hot decorative materials; gypsum board drying with heat or the like; other 5: railway heating steam curing; wood drying dry; steam car wash;
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