Maintenance of the boiler plant food during the maintenance shutdown has deactivated which is to prevent boiler corrosion. Since boiler shutdown, a large boiler humidity, poor ventilation, if long-term in a wet state, oxygen in the air with the metal heating surface of the wet complete contact, the inner surface layer of brown rust generated; in addition, often the heat receiving surface of the gas side accumulating ash particles during operation, after the shutdown in the humid environment, will cause corrosion of metals. In the boiler shutdown process, the main reason is the presence of moisture and corrosion of metal surfaces of the air. Thus, as long as the metal surface or a metal surface with dry air (oxygen) isolation, can effectively prevent corrosion. The length of the parking time, there are packing, Paul dry, wet security, ventilation PROTECTION. 1, pressure maintenance Pressure maintenance is suitable for up to one week shutdown of the boiler. The residue pot pressure 0.05 ~ 0.1MPa, temperature slightly above 100 ℃. Boiler pressure and temperature to maintain regular methods using steam heating the water adjacent to the boiler, a heating boiler or intermittently. 2. Dry Dry care maintenance is a method to protect the desiccant into the pot and in the furnace. Its purpose is to keep no water jug. The utility model is suitable for long-term or seasonal shutdown boiler heating boiler. Open manholes and hand holes, the header and the drum-dried. When wet boiler room, with appropriate use of the furnace heat or light burning wood, so that the furnace, the furnace wall flue drying. After drying the boiler is cooled, the opening and tray formulated desiccant tube is placed in the pot, and a collecting box grate, then tightly closes the inlet aperture, and a valve connected to the hand hole to prevent air from entering. For some Mifengbuyan valves, plug board should be increased.
Recently, the Government Office of Hebei Province issued the "Hebei province coal investment projects coal alternative management approach", mainly to strengthen air pollution control, the implementation of total coal consumption control target. The new "management approach" referred to new construction, renovation, expansion project of coal, coal should carry out the same amount of reduction or substitution (hereinafter referred to as a substitute for coal). Coal substitute coal should be completed before the project goes into operation.
These measures apply to administrative areas in Hebei coal for direct consumption of fixed asset investment projects. It refers to the direct consumption of coal raw coal, washed coal, other coal washing, coal slurry, coal, coal and other raw materials or fuels production and processing or combustion, its coal facilities (facilities, tools) including boilers, furnaces , gasification, blast furnace and so on.
Coal alternative pathway includes the following four aspects: the elimination of backward production capacity, excess capacity and Yajian enterprises closed down, converting reduce coal consumption; the implementation of central heating, reduce coal consumption saving technological transformation or removal of equipment out of coal-fired boilers and other equipment coal consumption; use of renewable energy, natural gas, electricity and other clean energy alternative to coal consumption; the other to meet the requirements of coal consumption reduction approach. Replacement of coal coal project supervision and management, energy conservation authorities responsible for co-ordination at all levels.
Gas-fired steam boiler which uses? Gas-fired steam boiler plays a very important role in the production and life. Very extensive use of the boiler, mainly classified into: 1, through a heat exchanger to convert the heat into water vapor, and the water is heated, and then heating, bathing and production purposes. 2, food processing, pharmaceutical industry, for disinfecting bottle filling, the food industry can be used for meat, steamed. Wine is made with steam. Further, in the petrochemical industry, oil and steam may be heated to increase the fluidity. Steam is also used in petrochemical production process. Production enterprises, using steam is widely used, such as foam insulation panels, foam material is heated to produce steam for production. Furniture made of wood furniture must be made to steam drying. Inflatable brick buildings have steam drying, you can also generate electricity and so on.
Applications and technical characteristics gas-fired boiler with a gas boiler is a very good performance of the equipment, its use of a wide range, it is often used in various fields, and very loved by the people. Gas boiler according to the different production processes are classified into two types, one can select an appropriate type according to the specific usage. The completion of the production process. This form of gas boiler is widely used in the petrochemical, textile, printing, plastics, rubber, food processing, wood processing, asphalt heating, carton production, dehydrated vegetables, baking, sand mold casting related art drying and the like. Gas boiler can be installed in different production process is divided into horizontal and vertical gas boiler gas boiler. Both the use of gas-fired boiler in accordance with the needs of production environments to choose. Gas boiler at this stage in the process of the job can be a good heat exchange equipment, to meet the business environment for technology production processes and production plants of different needs. It is possible under such conditions to achieve a good heat exchange warming dehumidifying, drying effect to water. While the gas boiler is also widely used in the relevant aspects of urban heating, heating, insulation and so on, but also provided a good variety of efficacy of steam, cooking, sterilization and aging, etc., with strong economic benefits. Then we carry out production problems for some analysis.
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