Hebei Anguo Modern Traditional Chinese Medicine Industrial Park takes modern Chinese medicine and healthy food as the leading industriies. The industrial clustering advantages and perfect infrastructure conditions have attracted many enterprises such as Tong Ren Tang, Tasly and China National Traditional Chinese Medicine Co., LTD. The concentrated supply of high-quality steam provides sufficient heat for the drying, extraction and stewing of traditional Chinese medicines. Therefore, these enterprises have strict requirements on the performance in various aspects of steam boilers.
Noun interpretation shell boiler shell type boiler basic structure is the double jacket structure. Called outer cylindrical boiler shell, called the inner furnace tube (fire tube), the space between the inner ring, an outer tube filled with water, and the inner cylinder combustion chamber. When the medium pressure vapor, by the internal pressure of the boiler shell, furnace subjected to external pressure. Shell boilers and discrete and horizontal. The most commonly used fuel, gas boiler WNS horizontal internal combustion shell boiler. Shell boiler has the following characteristics: 1, containing water "pot" and light a fire in the "furnace" are contained in a housing - housing pot; 2, metal hearth (furnace) a small volume, surrounded by water, cooled extent, poor combustion conditions, must burn the fuel quality; 3, less heating surface, heating power or a small amount of evaporation, often water or pyrotechnic means to increase the heating surface tubes and the boiler capacity; 4, potshell larger diameter casing, open more porous, irregularly shaped, it is connected to the inner portion of the heated portions together from heat, temperature and the degree of thermal expansion, and thus the security housing is poor; 5, the boiler system is relatively simple structure, easy to transport installation, maintenance and inspection operation management .
Gas central heating boiler deactivated after the release came out of water, the pot or the furnace very humid, coupled with insufficient ventilation, long time in a wet state. After a lot of air to enter all parts of the air involved are likely to produce oxygen corrosion, and erosion due to ulcer type and form of multi-spot-based corrosion, resulting in a lot of rust. This effect will be that the internal boiler corrosion metal wall thinning, reduced strength, shortening the life of the gas central heating boiler.
Tongchuan City, Shaanxi Province is located in Fenwei plain, it is China's major coal producing area, the unique geographical location determines the Tongchuan coal energy as one of the main economic development. Tongchuan coal to bring rapid economic development, but a large proportion of heavy industry, atmospheric pollution and other issues are very serious. "Winning Blue Sky Battle three-year action plan" published this year, Fenwei plain was a key governance areas. Coal City is not achieved coal, coal is not coal, promote clean heating, Tongchuan City is a serious problem.
Tongchuan party secretary said: "This year Tongchuan 4905 ex situ poverty alleviation relocation of the masses of resettlement housing has been fully completed and turnkey, the actual stay 3763, is a large-scale relocation of mass arrival of new homes in the first year."
After a preliminary investigation, Tongchuan City to improve people's livelihood and environmental protection together, launched a "warm life, warm hearts and minds" of warm winter action. Based on the concept of local conditions, it has been completed in 40 of the city's centralized settlements, reduce operating costs, clear charges. Mastery of natural gas household heating settlements, natural gas boiler wall encouraging people to self-heating; central village of rural resettlement and scattered resettlement households, encourage and guide them to use electric heating and cleaning of heating equipment. All use of clean heating devices are available to the masses 1000 yuan subsidy.
Clean heating, an impact on the masses warm winter, a relationship with Blue Sky Battle Action Plan. It is understood that the city of Tongchuan coal-fired boiler to achieve a global "clear" in 2017. 2018, Tongchuan City by town gas central heating and household heating, rural households in accordance with the appropriate air dispersion of the gas, should the electric power, should be hot is hot, use clean coal coal should guide the masses to reduce the amount of bulk coal use, and the use of clean energy and the masses of poor people winter heating subsidies. Currently Tongchuan City, completed a total clean energy alternative to coal for 27,897, of which 25,196 coal to electricity, coal to gas 2701, the city's clean heating rate of 82%, the basic realization of the coal city does not burn coal, coal is not coal.
According to Eco-Environment Department data show that 11 cities Fenwei plain mean concentration of PM2.5 in October this year to 48 micrograms / cubic meter, down 7.7% year on year. The lowest average concentration of PM2.5 is Tongchuan city, is 38 micrograms / cubic meter.