hot water boiler 20mw for biomass

Currently, biomass boilers results in incomplete combustion of the fuel in the main factors: the temperature of the furnace is not enough, lower than 600 ℃, good combustion can not be established normally structure; the amount of air supplied to the fuel can not meet the combustible components required for complete combustion; amount of air supplied is sufficient, but due to the mixing and contacting do not, initiate combustion disorder; water-based fuel used in the boiler is too large, when the fuel moisture more than 45%, combustion can be difficult to ensure normal combustion; fuel particles are too large, is not conducive to combustion reaction; or the reaction time of the combustion grate enough vibration amplitude is too large, the interval is too short, insufficient burning time; much ash, coke particles and wrapped, the combustion rate slowing; feed lot, on the grate fabric layer is too thick, gas-solid mixture is not benign; feed grate or thin material less heat storage capacity is insufficient. Products of biomass combustion boiler, contains a lot of combustible, ash black, sometimes visible raw material is discharged. The combustion gas contains a large amount of carbon monoxide combustible components. Factors causing incomplete combustion boiler fuel as follows: (1) the furnace temperature is not enough, lower than 600 ℃, good combustion can not be established in general structure. The amount of air (2) supplied in the fuel can not meet the need for complete combustion of the combustible component. The amount of air (3) is sufficiently supplied, since poor mixing and contacting the combustion disorder. (4) abnormal accident. (5) too much water the fuel as received, more than 45% of the water is difficult to ensure the normal combustion of the fuel. (6) the fuel particles are too large, is not conducive to the combustion reaction. (7) the reaction time of the combustion is insufficient, the amplitude of vibration of the grate is too large, the interval is too short, short burning time. (8) much ash, ash coke particles wrapping, slow combustion, (9) a feed lot, on the grate fabric layer is too thick, not gas-solid benign mixed. (10) the feed grate or thin material less heat storage capacity is not strong.

April 17, Nantong, Jiangsu Province, the municipal government issued the "Nantong City 2019 air pollution control program of work" ( "Program"). "Plan" is mentioned: Nantong City, 153 Taiwan boiler regulation reform, which involves natural gas boilers, biomass boilers, coal-fired boilers; renovation project and will continue to implement ultra-low emission coal-fired units, a total of six thermal power companies more than 10 sets of 75 tons of steam / hour implementation of ultra-low emission coal-fired boilers.

1, the implementation of total coal consumption control. Strict control of the city's total coal consumption, focus more non-power industry scale industrial enterprises in coal consumption, ensure the completion of the province for cut coal task, the city's coal consumption in 2019 than in 2016 to reduce 2.46 million tons. Strictly implement the "Interim Measures for commercial coal quality management," restrictions on the marketing and use of ash ≥16%, sulfur ≥1% of bulk coal. A ban on new coal-fired heating boilers, and strictly control new coal-fired power projects along the Yangtze River in addition to the common back-pressure coal-fired units no new coal-fired power generation, heating project.

2, to promote the integration of thermoelectric project implementation. Coal-fired boiler with a takeover condition within a radius of 15 km of promoting heating above 300,000 kilowatts of large units and small cogeneration units shut down integration. Hoi Mei Ah thermoelectric Ltd. law shut down two coal-fired units totaling 27,000 kilowatts, the letter Qidong Taiwan 12,000 kilowatts coal-fired units.

3, to carry out comprehensive improvement of the boiler. Establish a list of the city's boiler management. Before the end of 2019, 35 tons of steam / h coal-fired boilers and total phase law or clean energy alternative embodiment, suitable in accordance with the electric power, gas and other appropriate gas the regulation principle; promote clean coal utilization, promote clean and efficient coal-fired boiler , 65 tons of steam / h coal-fired boiler and above all ultra-low emissions and complete energy transformation; promote the transformation of low-nitrogen gas boilers, in principle, after the transformation of nitrogen oxide emissions concentration up to 50 mg / m, and in accordance with the corresponding boiler safety requirements. Urban built-up area of ​​ultra-low emission biomass boilers implement reform; the remaining boiler with all the special emission limit requirements. Boiler renovation project completed in 2019 153.

4, to further promote the ultra-low emission coal-fired thermoelectric renovation project. Ultra-low emission coal-fired units continue to implement reconstruction project for six thermoelectric companies 10 75 steam tons / hour and over the implementation of ultra-low emission coal-fired boilers transformation. (Municipal Bureau of ecological environment lead)

5, along actively embodiment desiccant fumes off white coal-fired units. Huaneng Power International, Inc. Nantong Power Plant, Jiangsu Nantong Power Generation Co., Ltd. Nantong Tianshenggang power generators and Nantong Acetate Fiber Co., Ltd., Nan Ya Plastics Co., Ltd. and other companies implement flue gas dehumidification off white works.

6, the implementation of pollution control industrial furnaces special action. City casting, iron alloy, metal smelting and regeneration, glass, ceramics, tiles, refractory materials, lime, waterproof materials, fertilizers, inorganic salts, calcium carbide, etc., according to the melting furnace, the melting furnace, sintering machine (furnace), baking ( calcined) burning furnace, a heating furnace, heat treatment furnace, a drying furnace (kiln), coke oven gas furnace nine types of trades to carry out an intensive investigation. Closely integrated with the second census of pollution sources, establish a management inventory end of June 2019.

What issues can explore the coal-fired hot water boiler 20mw for biomass? For this kind of boiler coal-fired hot water boiler, I believe we are not unfamiliar, because it is one of the site boiler products, so in front, has already begun work in this area of ​​knowledge to explain, so that we have the learning content, thus come gradually, and as soon as possible to achieve this objective and comprehensive requirements. So, here is no exception, is on this kind of boiler, however, is something new to learn proceed. 1.1 tons of coal-fired hot water boiler 1 hour to 45 degrees how much hot water? This, then, depends on the basis of the boiler water temperature is. However, in general, if one ton boiler temperature is 40 degrees, then it on the water, it is generally within the range of 10-15 tons. Therefore, it should be clear. 2. In the coal-fired hot water boiler, whether it is the higher the pressure, the higher the temperature in the furnace, the faster the speed of the boiler water cycle? In addition, one ton of coal-fired hot water boiler, heating area can provide much? And, in the heating, boiler which we can use to achieve their goals? One problem, the answer is yes, but also know that, in the coal-fired hot water boiler, the higher the pressure, then, for boiler water circulation is better. But it is also a limit range. As for question two, the answer is 10,000 square meters of heating area. For the three, the answer is for the gas hot water boiler, oil hot water boilers, hot water boilers burning biomass, coal-fired hot water boilers, hot water boilers, etc. These and alcohol. 3. Thermal efficiency of coal-fired hot water boiler, what should you consider? For this coal-fired hot water boiler A boiler, in which the thermal efficiency, different manufacturers, which is somewhat different. As well as differences in the manufacturing process, but also lead to different thermal efficiency. In addition to these two, and method of operation, fuel type and the like, sometimes need to be taken into account. In general, which in normal circumstances, reaching over 90%, there is no problem.

Use should pay attention to the problem of steam boiler pressure gauge. Rated steam pressure of less than 2.45MPa steam boiler, a manometer accuracy no less than 2.5; equal to the rated boiler steam pressure 2.45MPa, the pressure is not less than 1.5. Dial gauge diameter of not less than 100 mm, to ensure that the operator can clearly see the surface pressure indication. 2. Steam boiler gauge plate should draw a red line that indicates the maximum allowable working pressure. 3. The steam boiler pressure gauge should be installed in place to facilitate the observation and purged, and should prevent high temperature, vibration and icing. 4. The steam boiler pressure gauge should be checked at least once every six months, after calibration seal should be sealed. 5. The steam boiler gauge connection tube not leak water and steam, otherwise it will reduce the pressure instruction value. Biomass boiler is a kind of boiler to biomass energy as a boiler fuel called biomass boilers, steam boilers into biomass, biomass hot water boiler 20mw for biomass, biomass stove, biomass thermal oil heaters, vertical raw biomass boilers, biomass boilers and other horizontal. 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. 6. A steam boiler pressure gauge measuring range should be compatible with the operating pressure of the device under test, the working pressure is generally 1.53 times, preferably 2 times the working pressure. Steam boiler no pressure gauge, pressure gauge or pressure gauge damage does not meet the requirements. When the steam boiler pressure gauge of the following circumstances, should stop using: 1, the surface of the glass broken or blurred dial; 2, lead-free seal, lead seal is broken or exceeds the calibration cycle; 3. When no pressure gauge pointer position is limited to the limit staple nail can not be restored, and the unlimited gauge pointer from zero rank bit data is out of range pressure layer. Difference; 4, leak or pointer jump table; 5, other defects affect the gauge accuracy.

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