Maintenance of common gas import boiler tube suppliers you buy boiler equipment, will pay attention to a lot of problems, the number of thermal efficiency, energy saving and environmental protection whether, if the boiler manufacturers have to install special equipment manufacturing license, etc., are all you need to pay attention to the selection of points. But at the same time, the boiler in the course of regular maintenance is also very important. Regular maintenance of the gas boiler, can effectively extend the life of the boiler, improve work efficiency boilers, low failure rate, is conducive to the normal safe operation of the boiler. After regular maintenance gas-fired boiler, life, energy efficiency and the failure rate of maintenance should be carried out regular maintenance of the boiler better (especially boiler has been running for more than one year) than those without. Conventional boiler maintenance methods are: pressure maintenance, maintenance wet, dry maintenance, maintenance inflated. A pressure maintenance using pressure maintenance shutdown time does not exceed one week. Before the system shutdown process terminates filled with water to make soft drinks, is to maintain the residual pressure 0.05 ~ 0.1MPa, boiler water is maintained at a temperature above 100 deg.] C, can effectively prevent air from entering the boiler. Second, wet wet maintenance shutdown maintenance time does not exceed one month. In the soda boiler water softener system cheerful note lye, leaving no vapor space. This is because a stable oxide film with an aqueous solution of a suitable alkalinity can be formed with the metal surface, thereby preventing corrosion. Third, using the dry method maintenance shutdown maintenance time is longer. This is done; pot of water put the net after shutdown, residual heat boiler using a drying furnace, timely removal of residual scale and pot residue was then placed on the tray containing a desiccant within the drum and grate, Finally, close all valves, manhole and hand hole door. Regular inspection and maintenance, and timely replacement of the desiccant failure. Fourth, inflated maintenance Inflatable maintenance shutdown can be used for long-term maintenance. After the boiler shutdown, do not turn on the water, the water level is maintained at the high water line, to take measures so that the boiler deoxidation, then the pot of water and isolated. After the ammonia gas or helium gas through the pressure after inflation is maintained at 0.2 ~ 0.3MPa, nitrogen combines with oxygen to generate nitrogen oxides, so that the oxygen can not be in contact with the steel plate; ammonia was dissolved in water such that the water is alkaline, can effectively prevent oxygen corrosion phenomenon.
Inlet water: open biomass steam import boiler tube suppliers inlet valve, close the steam outlet valve, start to pump water to the steam boiler,still the water level reach the lowest water level to the water meter, check whether the water level is stable, if the water level is fall then should check whether the boiler blow down valve is not tightly closed.
Recently, Jinan City, Shandong Province People's Government issued and implemented the "2018 Beijing and Tianjin and the surrounding regions - 2019 autumn and winter tackling air pollution comprehensive management action plan" to inform the implementation of the program, requires the consolidation of ambient air quality improvement achievements, promote air quality continues to improve. On October 1, 2018 to March 31, March 2019, and all the city county fine particulate matter (of PM2.5) mean concentrations fell more than 2%, severe pollution and over several days up declining.
"Implementation plan" will be based on four construction industry, energy, transport and land use optimization adjustments to promote clean heating, public transferrin, enterprises mentioned standard upgrade, dust remediation, focusing on the consolidation of "scattered pollution" enterprise comprehensive rectification results, ruthless grasping diesel trucks, industrial furnaces and rectification of volatile organic compounds, heavy pollution to the implementation of the weather in autumn and winter peak load shifting production to strengthen joint prevention and control among regions, strengthen law enforcement supervision.
1, continued implementation of the total coal consumption control, strict implementation of national, provincial coal consumption reduction of about alternative work arrangements, and the development of alternatives seriously implement the Jinan City, the work reduction of coal consumption, coal consumption control tasks break down into individual counties, total coal consumption to achieve a steady decline. 2018, the city's total coal consumption control in less than 17.14 million tons.
2, effectively promote clean heating to the town (street) or the county as a unit as a whole. As of 2020, the city's pre-season heating living and improve the basic motivation for heating coal for alternative tasks, to develop a three-year implementation program to determine the annual task of governance. Taking into account the agricultural greenhouses, animal building bulk coal governance and to proceed with energy-saving buildings to improve energy efficiency. The county should proceed from reality, according to local conditions, reasonably determine the transformation of technical route, should the electric power, gas should the gas, the coal should be coal, should be hot is hot, and actively promote the use of solar thermal and centralized biomass utilization; adhere to highlight focus, give priority to urban life and motivation for heating gas demand, priority to promoting the urban bulk coal cleared. Gas will adhere to the reform, to change the electric set, on the basis of priority to the protection of residents in 2017 has started "coal to gas," "coal to electricity" project on gas electricity, gas and new year according to the actual supply and heating period the ability to reasonably determine the residents' coal to gas, "" coal to electricity "households; insist on legislation after the break, substitution of gas for coal to electricity instead of coal and other alternatives, in the implementation of air power is not the case, the original heating facilities will not be removed. In accordance with national, provincial requirements, to complete the clean winter heating construction tasks 33000.
3, complete replacement of the bulk coal areas to be designated as high-pollution fuel combustion zone ban in accordance with the provisions, shall not be burning coal for use again. Severely crack down on sales of low quality coal combustion, to ensure the quality of coal used in line with national and local coal quality standards.
There are eight bed ash drains, consisting of vertical pipes which extend through the furnace floor. The bed material is cooled in water-cooled screws located under the furnace windbox at each drain. The solids drain flow rate is controlled by the rotational speed of water cooled screws. While fluidized bed ash drain coolers have been specified for a number of boilers having high ash, water cooled screws were selected for this project. The choice between a fluidized bed ash cooler and screw cooler was carefully examined. The advantage of a fluidized bed ash cooler in utilizing the sensible heat in the bottom ash is offset by several disadvantages: a) in the case of anthracite schtib firing, there is a possibility of temperature excursions in the cooler due to carbon burnout leading to agglomerate formation, and b) a considerable amount of cooling air/flue gas is needed which can affect boiler performance. With multiple screw coolers, there is redundancy allowing for repairs to be made with the boiler on-line with little or no reduction of boiler capacity. Secondary separator recycle. The solids collected in the multi-cyclone are recycled to the furnace side wall injection nozzles at the required rate using air-assisted conveyors. One air-assisted conveyor serves two multi-cyclone hoppers. The flow rate to each conveyor is controlled by a variable speed feeder installed between the hopper discharge connection and the conveyor inlet. Control algorithms determine the aggregate quantity of solids to be recycled to meet furnace performance requirements and the flow rate from each hopper required to accommodate non-uniform distribution of solids from hopper to hopper. Excess solids are removed from the system when required by means of overflow pipes in each hopper. Solids from the overflow pipes are sent to disposal via the plant ash removal system.
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