DZL water tube hot water boiler

Textile companies need steam for drying, printing, and shaping, and the quality of steam is critical to the quality of the garment. The choice of steam boilers requires more care.

A method of cleaning a boiler, a chemical cleaning process: descaling water rinsing → pickling → water rinsing → passivation; 2, independent of the other system is disconnected the boiler, the cleaning tank, the washing pump is coupled into the boiler with a closed cleaning 4, the end of the rinse water; loop; 3, in a simulated cleaning state washing system leak check, while the boiler remove loose dirt, at the outlet of the flushing water when no visual presence of large foreign particles, the end of the flushing water in circulation cleaning tank Add "Yunqing boiler cleaning powder", the main controlling the cleaning in 3-6% concentration, temperature in the range of 50-60 deg.] C, decontamination wash cycle within the system, cleaning time 2- about 3 hours. PH measured by pH paper Timing acid value of (1/20 minutes), it was maintained at 1 or less, when the pH value is stabilized within half an hour, and purge the system without gas evolution, the pickling process ends; 5, after passing rinse water, circulating add "Yunqing passivation pre-film" passivation to improve the corrosion resistance of boilers. After concentration of the whole system is stopped mixed solution was warmed to about 60 degrees cycle, soak for 2-3 hours, the passivating liquid discharge system, the cleaning process is ended. Note: 1, this product can not be eaten; 2, process handling, operation, wear protective clothing. Packing: plastic bags: 1 kg / bag 25 kg / bag.

Recently, Yuhang District, Hangzhou, Zhejiang Province, a printing company 20 steam tons / hour of coal-fired boilers have been stalled, this is the last Yuhang district an industrial coal-fired boilers, which marks the shutting down of Yuhang District of industrial enterprises to bid farewell to coal energy structure of coal turned to natural gas and other clean energy, Yuhang District from entering the industrial coal-free era.

Yuhang District "coal-free zone" construction of road resistance and long. As a major industrial zone, a long time, Yuhang District to focus on coal-fired thermal power plants, coal-fired boilers and other industrial enterprises formed a coal-dominated energy consumption structure. In 2014, the maximum amount of coal Yuhang District reached 783,600 tons. Large coal consumption that emissions of sulfur dioxide, dust and the like remain high for many years.

In order to further deepen the air pollution control, to win the Battle of the blue sky, Yuhang District, from 2017, will gradually tangqi thermoelectric, thermoelectric and sea Chongxian three coal-fired thermoelectric power plant with all closed down, the sea of ​​clean natural gas for thermoelectric realized heat. 3 thermal power plant shut down so that the region's coal consumption, pollutant emissions and other indicators to achieve substantial reductions in road construction of "coal-free zone" has taken a crucial step.

Yuhang bid farewell to coal road this did not stop. While coal-fired thermoelectric accounted for the bulk of coal consumption and pollution emissions, but only out of coal-fired power plant is not enough. 2018, the government decided to promote taking advantage of Yuhang District, the region within the remaining four coal-fired industrial enterprises (Coal Products) pot (kiln) furnace closed down or eliminated or modified.

Yuhang District to increase the proportion of electricity consumption, and actively guide the region's energy unit of coal to electricity, oil to electricity, gas bottle to electricity, the construction of an orderly distribution grid, promoting smart grid construction; continue to improve the level of utilization of natural gas, and urban area in addition to all the town cormorant birds, Baizhang full realization of natural gas supply, a total of 850 kilometers of natural gas pipeline construction and municipal gas transformation 45000; to promote the application of photovoltaic power generation, the region's industrial and commercial enterprises amounted to 173 megawatts of photovoltaic capacity building distributed, clean energy applications has taken shape in Yuhang District.

According to statistics, "Thirteen Five Year Plan" (2016-2020) since the implementation of environmental statistics included in Yuhang district industrial enterprises coal consumption from 588,900 tons in 2016 down to 38,900 tons in 2018, to drop in early 2019 0.

A substantial decline in coal consumption is brought to slash emissions of pollutants and air quality improved significantly. 2018, the main pollutant urban air Linping PM2.5 average concentration of 38 micrograms / cubic meter, decreased 40% in 2015. Region sulfur dioxide emissions of 7,833 tons in 2014 to 2018 had dropped more than 90%; NOx emissions to 8490 tons in 2014 to 2018 had dropped more than 60%.

Large and medium-sized boilers in the power and heat industries have high economic losses due to high operating parameters, and the original boilers are smashed. The social impact is huge. Therefore, the water quality of boiler feed water is particularly high (water quality required for power plant boilers, resistivity) >5 MΩ.CM, SiO2 <20 μg/L). In general power plants and thermal centers, water plants are set up to treat boiler feed water.

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