What is hot water boiler

Hot water introduction

Waste heat boiler application

In many industries, such as metal smelting and chemical industry, these industries produce a large amount of waste with heat in the production process. If these wastes are directly discarded, they will not only cause pollution, land occupation, etc., but also The loss of heat also causes energy waste. Under the background of serious environmental pollution and energy crisis, the waste heat boiler has developed rapidly and has broad development prospects.

Industrial boiler water quality standard industrial boiler water quality standard industrial boiler water quality standards for a range of industrial boiler water quality standards of this new standard specifies the quality requirements during operation in industrial boilers. This standard applies to the outlet steam pressure less than the rated 2.5MPa. Water as a medium and fixed in china made double drum dual fuel fire tube steam boiler steam boiler water as a medium is also applicable to a given water as a medium pressure hot water boiler and pressure hot water boiler. Second, the industrial boiler feed water quality standards 1. Steam boilers and steam boilers are generally required to use chemical water treatment outside of the pot, and the water quality must meet the requirements in Table 1. Tends to 1) hardness Lc basic unit (1 / 2ca2 + 1/2 Mg (2+), the same below .2) alkalinity MMO1 / L basic unit is C (OH-, 1 / 2CO2-3, HC03 -). On the alkalinity index value is not high boiler after reporting to the local boiler and pressure vessel safety supervision mechanism no overheating, which can be appropriate to relax the limits on the alkalinity index. 3) When the amount of evaporation than or equal to the nominal 6t / h boiler should be oxygen, localized corrosion was found, measures to be taken deaerator feed water, the oxygen content of the boiler feed water or steam turbine should be less than when less than 6t / h boiler rated capacity equal to 0.05 mg / L. 4) If the dissolved solids is difficult to determine, by measuring the conductivity or chloride ions (C1 -) indirect control, but the relationship between conductivity and dissolved solids or dissolved solids and chloride ions (of Cl-) ratio should be determined EXP . food. This ratio relationship should periodically re-tested and corrected. 5) only fuel, gas boiler 2, equal to or less than the rated capacity 2t / h, and less than or equal to 1.0MPa rated steam pressure, steam boilers and soft drinks dual boilers (steam, no special requirements such as quality) and the metering process can be application. But we must strengthen the boiler scaling, corrosion, monitoring water quality, good feeding, sewage and cleaning. Boiler water quality should meet the requirements of Table 2.

Since 2019, Taiyuan continue to adhere to the principle of priority to improve air quality, in order to significantly reduce heavy pollution weather as the main direction, ongoing action to combat air pollution, management depth to promote coal-fired boiler to achieve 35 tons of steam coal-fired boilers "clear zero".

In accordance with the gas will change, given the need for, after the first stand broken, do not break the principle of non-stand, Taiyuan will continue to carry out the transformation of rural areas, clean heating, heating is expected to complete the transformation of 30,000 before the end of October, the city's rural areas clean heating coverage rate reached 70%.

To reduce coal pollution, coal-fired boiler will also promote the in-depth treatment. October 1, seven more than 65 tons of steam coal-fired boilers and ultra-low emissions completed the transformation. Seven out of 35 tons of steam coal-fired boilers to achieve 35 tons of steam coal-fired boilers all clear.

In the region of the pollution control aspect, the binding improved air quality requirements, the complete electricity instead of coal, coal gas for generation of clean alternative energy area, included in "ban on coal zone", the implementation of joint sheet control. Meanwhile, to further increase the intensity of investigation ban within the "ban on coal zone" small coal-fired facilities, enhance the level of protection clean heating, ensure clean heating effect, and resolutely put an end to bulk coal burning complex, consolidate the "ban on coal zone" construction achievements.

In terms of market control, prohibit the use of more than 1% sulfur, ash than 16% of the civilian bulk coal. Before the end of the civil bulk coal sampling of coal sales business monthly coverage rate of 10%, annual sampling coverage of 100%. Investigated sales of low quality coal units and individuals in accordance with law, concentrate on cleaning up, straighten, banning non-compliance bulk coal supply channels, to crack down on the use of low-quality coal sales behavior, non-coal washery slime, the coal into the civilian market.