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Steam boiler in time to pay attention to whether there is gas in the cylinder, can periodically open the cylinder air valve to discharge, so as to avoid the cylinder gas resistance, and affect the intake water. The flow regulation of pump should be realized by bypass regulation, but not by means of adjusting outlet valve. Pump in rated discharge pressure, its intake pressure shall not exceed the specified value. The pressure difference between intake and exhaust shall be kept within the prescribed range.

An upper end fixed to the waterwall boiler drum, since the large amount of expansion is small bending Wall smaller capacity expansion compensation itself, so that the lower end is free to expand. Wall downward swelling amount can be calculated in advance based on the temperature and the material and height. If Stoke process water wall downward expansion value does not match with the design, may be blocked the downward expansion. Uneven heating or water wall, should try to eliminate, or will cause excessive thermal stresses within the waterwall tubes.

January 16, Harbin Municipal Environmental Protection Bureau Director of the atmosphere and noise pollution control at the public hall, Li Bin, said: "Harbin problem-oriented, focused on solving the coal pollution environmental air quality, autumn and winter of straw burning pollution." By a wide range of governance, 2018, Harbin has made in terms of ambient air quality improvement remarkable results, the standard number of days 310 days, an increase of 40 days, for the introduction of new environmental quality standards since the best of the year.

Prior to 2017, the total removal of Harbin urban built-up area of ​​small boilers range of nearly 3,000. 2017, Harbin started the largest in the history of the elimination of small-scale boilers battle, tear down 9 district built-up areas and industrial parks within a small boiler 2074 units. 2018, further expanded the phase-out range, expanded from 9 Zone has outside built-up areas, where the built-up area in District 9 out of 10 tons of steam per hour of coal-fired boilers to achieve foundation "clear" on the hour and eliminated more than 10 tons of steam coal-fired boilers 99 units, out of the city a total of 1191 units. The results accumulated over the years, significantly reducing the use of coal, reduce emissions of pollutants.

According to reports, in the fall and winter seasons, Harbin straw Jinshao pay close attention to the work to implement the five grids responsibility, building straw Jinshao 24-hour duty system inspections, inspection teams at all levels of uninterrupted inspection. In addition, Harbin has also implemented emission standards of air pollutants, vehicle control, open-air barbecue ban, dust management, especially in heavy weather pollution contingency timely warning, take active control measures played a role in the down-clipping. Through various management, air quality has been greatly improved.

In summary, the industrial boiler energy-saving system energy-saving, software energy-saving and hardware energy-saving measures. We should make effective use of steam, recycle and utilize waste heat steam. Heat preservation of all kinds of pipes, using heat pipe heat exchanger, steam accumulator and other devices for energy conservation. Great economic benefits can be obtained by using hot water boiler heating, central heating in regional boiler room, co-generation of heat and power generation with excess pressure to improve the utilization rate of energy. Here is a brief introduction to some basic and common energy-saving measures, there are many energy-saving measures waiting for us to study and use. As long as we really attach importance to the conservation and rational use of energy, we should adopt all kinds of Effective measures can continuously improve the energy efficiency of industrial boilers, make the limited energy sources play a greater role, and lay a solid material foundation for the development of the national economy.(14) what are the reasons for boiler scaling?