What is the principle of the horizontal 3 ton water tube boiler? No matter how much the tonnage, the boiler works basically the same. Role of the boiler fuel chemical energy is converted into thermal energy, heating and heat inside the pot with water to become superheated steam having a mass and a sufficient amount (steam temperature, steam pressure) of the steam turbine for use. Now the power plant boiler capacity, high parameters, technical complexity, high levels of mechanization and automation, the main fuel is coal, and coal prior to combustion of pulverized coal first made, and then into the boiler combustion heat release in the furnace. Broadly speaking, the work process is the main boiler fuel combustion, heat transfer, vaporization and heating of the water with the superheated steam and the like. The entire boiler boiler composed of two parts and auxiliary equipment. Boiler: boiler body is the main part of the boiler equipment, is composed of two parts, "pot" and "furnace" composition. "Pot" is the soda system which main task is to attract the heat receiving fuel discharged, the water is heated, evaporated and finally becomes superheated steam having certain parameters. It consists economizer, the drum, the downcomer, the header, water wall, superheater and reheater connecting pipes and other equipment and valves. 1) economizer. Vertically positioned rear of the boiler flue, the use of flue gas waste heat boiler feed water, reducing the exhaust gas temperature, increase boiler efficiency, fuel economy (2) drum. At the top of the boiler, it is a cylindrical pressure vessel, which is under water, the upper portion of the steam is that it accepts the economizer runoff, while the downcomer composed header, Wall water circulation circuit. Wall water absorbs heat generated in the soda mixture was collected in the drum, conveyed by the saturated steam to the superheater steam-water separator (3) downcomer. Water supply pipe water wall, the effect of which is introduced into the water in the steam drum to the lower header redistribution respective waterwall tubes. Dispersion in small diameter and the large diameter downcomers Downcomer two kinds. Small diameter tubular small diameter drops, the water cycle of negative (4) waterwall lower header. The main role of the header is a mass pooled or working fluid through the header to the header redistributed through other conduits. A water wall is thicker lower header tube closed at both ends, its role is connected to the downcomer and the water-cooled wall, so as to function together, mixing, redistribution effect working medium (5) water wall. At the furnace around its main task is to absorb radiant heat of the oven, to evaporate water, which is the main heating surface modern boilers, while protecting the furnace wall (6) superheater. Its role is to drum saturated steam into superheated steam on heating (7) having a predetermined temperature reheater. Its role is done in the steam turbine power section is heated up again, and then continue to work in the steam turbine. "Furnace" is the combustion system, its task is to make the fuel burn in a good furnace, heat. It consists of the furnace, the burner, ignition means, air preheater, the smoke duct and the furnace wall, frame and other components. (1) furnace. It is transferred from the furnace wall and into the water wall for fuel combustion, the fuel combustion in suspension, the release of large amounts of heat within the space. (2) burners. Located on the furnace walls or corners, its role is the fuel and air injected into the furnace at a constant speed, so that it can be well mixed in a furnace in order to ensure timely ignition and rapid and complete fuel combustion. DC sub-burner and swirl burner two basic types. (3) air preheater. Located in the boiler backpass, whose role is to use waste heat of flue gas to heat the fuel required for the combustion air, exhaust gas temperature can be further reduced not only, but also for strengthening the furnace combustion, improve the economy of combustion, pulverized coal drying and conveying is advantageous of. Boiler efficiency can be increased by 2%. And rotary two kinds of charge. (4) smoke duct. From the furnace wall is a pipe, the pipe heating surface and the portion of the tube wall and other components of the package, for guiding the flow of flue gas through the heat exchanger and the respective heating surface, and is divided into horizontal flue backpass. Auxiliary ventilation apparatus comprises auxiliary equipment (delivery, induced draft fan), a fuel transportation equipment, milling system, in addition to ash and dust removal equipment, desulfurization equipment.
The price of gas horizontal 3 ton water tube boiler characteristics and maintenance of gas boilers Products: gas boiler includes a gas water boiler, gas hot water boiler, gas steam boilers, gas hot water boiler which is also known as gas heating boilers and gas boilers bath, as the name suggests refers to gas boiler it is the fuel for the gas boilers, gas boilers and oil-fired boiler, electric boiler compared to the most economical, most people have opted for a gas boiler as steam, heating, boiler equipment for bathing. Gas boiler Features: 1, large font display temperature, easy to grasp and boiler operating conditions of the system, the water temperature can be freely set from 10 ℃ to 90 ℃, automatic boiler or heating system to provide users with life, bath with hot water. 2, the control system controls the circulation pump start and stop in accordance with the temperature of boiler water, boiler water circulating pump starts when the water reaches an upper limit temperature, lower than the hot water circulation pump stops when the water temperature lower limit. 3, three horizontal gas bath boiler return all wet back structure, using a large furnace, rough smoke tube design, increased furnace radiation heat absorption, the effective energy saving. Using threaded pipe and waveform furnace, greatly enhanced heat transfer effect, greatly saving fuel consumption. 4, while the machine is equipped with thermal protection (ultrahigh temperature furnace, the burner is automatically stopped and an alarm buzzer, the second over protection (the boiler shell temperature exceeds 105 deg.] C, the secondary circuit is automatically cut off), the lack of anti-dry protection of water (when water is lower than the low water level of the furnace, the boiler is stopped and an alarm beep), a boiler leakage protection (the control system detects electrical leakage, short circuit, automatically cut off the power) .5, according to the boiler pressure design , no pressure in the boiler state, there is no safety hazard with advanced multi-layer insulation centrifugal glass wool, steel for packaging famous white color, heat loss, beauty care and anti-rust gas boiler: 1, gas-fired boiler during operation Note the following points: (1) does not allow pressurized gas boiler furnace combustion or smoke, because the manhole cover easy to burn stoker; not on the water bottom (2) gas boiler ground surface to prevent corrosion .2 moisture, gas boiler runs every 2-3 weeks, should be checked once a .3, gas boiler run after every 3-6 months, should conduct a comprehensive inspection shutdown maintenance: (1) internal and external gas boiler inspection, such as by Weld parts, steel inside and outside for corrosion phenomenon, if found serious deficiencies should be repaired, if the repairs were not serious defects also until the next shutdown, if there is suspicious, but does not affect safety, should make a record for future reference; (2) can be checked and the water boiler primer coating to prevent corrosion .4, gas boilers and boiler paint base at least once a year .5, often of unused gas boiler maintenance methods: dry and wet two kinds, one month shutdown, care should be taken dry method, wet shutdown can be less than one month regimen (1) dry regimen: after shutdown of the furnace to the discharge water will completely remove the dirt inside , rinse, drying in the furnace with Weihuo (be careful not to fire), and then the bulk quicklime 10-30 millimeters in diameter installed sub-plate, placed in the drum, without contacting the metal with lime, quicklime by weight, calculated to the drum volume 8 kg per cubic meter, then all manholes, hand holes pipe valve closed, checked every three months, such as lime ingredients like broken, i.e. the need to replace the boiler should be re-run Quicklime and disk unloading (2) Wet regimen: After Shutdown of the water discharge furnace, the inside completely remove the dirt, rinse, refill treated water to the full, the water was heated to 100 deg.] C oven, so that the water exhaust gas out of the furnace, and then close all valves, cold climates where moisture can not support the use of law, so as not to damage the boiler furnace water freezes.
Gas-fired steam horizontal 3 ton water tube boiler which in modern industrial production, although the boiler very prominent role played by the choice of cleaning agent, but it is also very easy to scale boiler is subject to corrosion or damage. Gas boiler steam heater in such a situation therefore requires timely associated boiler equipment for cleaning, and performance of the practical utility of the most prominent non-gas-steam cleaners which is none other than this. Where a new gas heating system to replace the steam pipe cleaning agent must be used to eliminate the inner wall of debris so as not to affect gas-steam heat transfer efficiency and service life. It should be carefully checked, in use, to prevent water, acid, alkali and leakage into the low boilers using the system, and to install the filtration device, to prevent mechanical debris into the system to ensure the purity of the oil. A gas-steam with hot brands and process requirements, the correct selection of various grades of high-temperature gas-steam, and strictly abide by the provisions of the "organic heat carrier furnace Safety Technology Supervision" in the proper use of gas steam. Gas steam boiler at a high temperature gas for gas steam, gas, fuel furnace as a carrier, electric heating reactor and other heating devices, shall have the expansion tank and the oil sump and other security components and temperature control instruments and other facilities, to ensure safe operation. Purpose cleaners gas steam boiler is effectively rapid clearance gas steam boiler and the heat exchanger internal conduit accumulated soot and grease. Then we also have requirements on the cleaning agent, must not harm our metal heat transfer surface, requiring no residue, is completely dissolved, it must be easy to operate and requires only the use of the process in accordance with the needs of ordinary people to operate. Requires us on the gas boiler steam oven cleaners are: low energy environment, Wudu tasteless, non-flammable, irritation, can be directly discharged after cleaning.
Recently, Jinan City issued a "supplementary notice on accelerating the city's horizontal 3 ton water tube boiler-depth treatment of work-related" and formulated the following objectives.
I, on the in-depth treatment of boiler completion time. Low Nitrogen transformation and the transformation of the city's ultra-low emission gas-fired boiler biomass boiler to complete the appropriate time to relax, and strive to be completed in the end of June 2019, due to the commitment of heating (cooling) or involving people's livelihood and other support complex transformation process of the boiler furnace, indeed practical difficulties, completion time may be extended to the end of October 2019.
Second, on the in-depth treatment boiler standards. According to the "program tackling autumn and winter", the low nitrogen gas boiler after transformation, in principle, is not higher than the concentration of nitrogen oxides emissions of 50mg / m³, according to encourage the transformation of 30mg / m³. Encourage the transformation of biomass boiler with ultra low emissions coal-fired power plants.
Third, on the time-depth treatment of boiler arrangement. 2018 10 completed before the end inventory information verification, planning work; organize the implementation of the completion of the work before the end of May 2019; the end of June 2019 to complete the inspection work (due to heating and other disabled do not have to bear the acceptance conditions, available at the end of November 2019 before the completion of acceptance).
Fourth, on the information submitted to the work. Please ring the economy Zi [2018] No. 175 document complements the "Jinan City gas boiler investigation Summary Sheet" on or before October 12, "Jinan biomass boiler investigation Summary Table" to the Municipal Environmental Protection Bureau. On or before October 26, the "Jinan City Boiler depth management plan summary table", "Jinan hole sampling and sampling platform standardization construction unit summary table" and has completed the in-depth treatment of the boiler reconstruction proved supervisory monitoring report submitted to the Municipal Environmental Protection Bureau . Since the beginning of November, every Friday morning before 10:00 (for the first time submitted November 2) the progress of reform in-depth treatment of each unit case to the Municipal Environmental Protection Bureau.
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