Recently, we learned, Shaoxing City, Zhejiang Province People's Government Office issued the "coastal city 2018--2019 autumn and winter tackling air pollution comprehensive management action plan", as follows.
Less adopt comprehensive measures to reduce coal total coal consumption, coal consumption in 2018 to ensure that the total amount of negative growth. New non-owned coal-fired units, the implementation of new large-scale coal-fired units and coal consumption capacity equal or reduction alternative.
Optimize the use of natural gas structure, in principle, to new natural gas cogeneration and gas chemical projects, gas will adhere to the reform, orderly manner "coal to gas" project.
Carry out boiler (with tea furnace, operating a stove, grain storage and drying equipment, coal-fired facilities) an intensive investigation to establish accounting and inventory management, to develop a comprehensive remediation program in accordance with the unified deployment requirements boiler city, according to the law in accordance with regulations to increase fuel coal boiler out of efforts to achieve all cleared 10 steam tons / hour and coal-fired boilers to prevent high-polluting fuel boiler rebound has been eliminated. Boiler registration strictly prohibit new steam per hour 35 tons / hour of coal-fired boilers, coal-fired boilers new emission concentration to meet ultra-low emission of air pollutants, strict control of new biomass boilers, coal-fired boilers embodiments and low nitrogen urban built-up area of ultra-low emission biomass boilers transformation.
Most factories or industries need steam boilers during their daily production process. Horizontal style steam boiler with fast assembly feature get more and more popularity in the market. ZG Boiler manufactures both horizontal style boilers and vertical style boilers for different industry fields. Take an example here, ZG Boiler manufactures WNS and SZS steam boiler fire gas or oil is horizontal type in designs. Besides, natural circulation type for burner combustion can improve boiler thermal transferring efficiency. Today, I will introduce our SZS horizontal style and natural circulation type steam boiler, gas fired, in particular.
Accessories szs system and boiler water tube boilers which (1) the fuel system the fuel system of pumps pumping fuel from the fuel tank to the day tank, is then withdrawn from the daily tank fuel pump, through a pressurized, heated, and sprayed into the filter oil atomization. This system is usually divided into the border daily service tank and oil supply system and fuel system. (2) feedwater, condensate water, steam condensate system piping system comprising pipes and valves and piping and other equipment from the deaerator. Steam system comprises a steam pipe and various valves. (3) the ventilation system features a ventilation system external air into the furnace for combustion of fuel, and the products of combustion (flue gases) discharged from the boiler to the atmosphere. In the process of air and flue gas flow, there will be a variety of flow resistance, if the natural ventilation generated by a chimney to overcome the resistance to flow, called natural ventilation. Obviously, this ventilation air flow generated is small, can be improved by increasing the height of the chimney natural ventilation. Using a fan to overcome the flow resistance of various ventilation systems, called mechanical ventilation. Mechanical ventilation is divided into positive pressure ventilation, ventilation and negative balanced ventilation. The so-called positive pressure ventilation means for sending air to the boiler and the flue gas discharged from the boiler to the atmosphere. Primer furnace boiler flue gas exhaust blower suction chamber, known as negative pressure ventilation. (4) boiler auxiliaries and monitoring instrumentation and monitoring instrumentation, boiler accessories boiler safe and economic operation are necessary, including: (A) as an annex to ensure the safe operation of the boiler: water level gauge, safety valve, pressure gauge and thermometer indicating steam parameters ; B) combustion supervision parts: pressure gauge, carbon dioxide indicator, oxygen table, smoking view mirror.
Factors industrial boiler energy-intensive factors which have high energy consumption of industrial boilers which 1, energy consumption is low management level industrial boiler is too large, there are currently a lot of long-term business. On the one hand understanding of the enterprise energy conservation boiler is still not sufficient, on the other hand the energy management level is still at a low level, and even some companies even the most basic measuring instruments are not equipped. In order to reduce operating costs, many companies have to buy the old boiler use, lack of components purchased fuel means of inspection. Even in the case of raw coal screening is not performed, it is directly put into production use, it is difficult to ensure full combustion of coal. Not only the thermal efficiency is low, but also resulted in a waste of fuel. 2, heat recovery is poor combustion is incomplete, the situation is the high rate of heat loss is extremely common in industrial boilers used in the process, saving the main parameters of the boiler will be exceeded. Economizer function is to heat energy recovered, but in actual use, heat recovery efficiency is very low. In this case, do not use a lot of boiler economizer direct altogether, inevitably produce exhaust gas temperature is too high. Meanwhile, return the device and steam condensate recovery, it has not been fully appreciated and better use, some are put to use in the boiler after installation, and did not take appropriate measures to deal with poor recycling effect. 3, lack of effective supervision of the level of energy service work, depends largely on the level of experience and technical personnel. But in practical terms, due to the lack of technical personnel, resulting in the energy service work at the level of the low. Various enterprises produced energy-saving products with high imitation, coupled with the lack of effective supervision of energy-saving measures, resulting in the entire market of energy-saving products more confusing. The effect of not only energy-saving effect is not ideal, and to transform the poor, the performance of energy-saving products remains to be greatly improved. Market confusion, vicious competition phenomenon has not been fundamentally curbed.
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