Coal-fired boiler to carry out a comprehensive investigation and remediation work, Luohe City, Henan Province, Li Jizhen provincial, city and town each environmental supervision departments centralized call the relevant personnel, three-pronged approach to work.
First, a comprehensive investigation to find out the base.
Li Jizhen town for all industrial enterprises, restaurants, vermicelli processing plants, farms and other coal-fired boiler with a boiler units diagnostic investigation, the establishment of coal-fired boilers ledger, so base-clear, the situation is clear.
Second, clear standards, conducting pressure.
Town leaders organized the renovation work conference of coal-fired boilers, the boiler so that the user's overall reform and the dismantling of scheduling, the town must be eliminated in the formation of boiler upgrade, you do not need to be removed out of shutting down consensus.
Third, actively coordinate, and assign responsibilities.
Natural gas is being implemented in conjunction with the "double substitution", and actively coordinate the gas boiler equipment suppliers in collaboration with the local gas company, entered into a collaboration, timely completion of "substitution of gas for coal" upgrade tasks.
As of now, the town has shut down six coal-fired boilers, the implementation of "substitution of gas for coal" boiler upgrade eight, effectively promote the prevention and control of air pollution.
How to save energy for gas-fired boiler
Energy conservation is a problem that needs to be considered in industrial production, especially for industrial boilers that support thermal power support for industrial production. Energy conservation is a reflection of the technical level of the boiler industry. With the implementation of the national energy conservation and environmental protection policies, the traditional coal-fired industrial boilers have gradually been replaced by natural gas steam boilers, and a revolution in energy-saving and environmental protection has taken place in the field of industrial thermal power.
After the 20 mpa pressure steam boilers to produce steam also need to pay attention to them? Steam boilers purpose is to generate steam to conduct heat, but when the steam produced by the boiler equipment should not be on the matter, or to pay more attention after the steam, because this time the steam boiler will start boost, while furnace the saturation temperature of the water also began to increase. Since the temperature of the water in the rising steam boilers, gas bubbles and metal evaporation heating surface wall temperature also began to rise at any time, need to pay attention to thermal expansion and the temperature of thermal stress, because the bubble wall thickness is thick, the main heating process in the boiler the problem is thermal stress. At the same time, but also consider the overall thermal expansion problems, especially for pipe heating surface of the steam boiler because the wall thickness, length of problems in the heating process is thermally integrated for expansion, but also pay attention to thermal stresses, to prevent neglect caused the failure. Generating steam in a steam boiler and boost heating process, the temperature difference between the bubble there is a temperature difference along the thickness of the vertical wall and, when the temperature is higher than the outer wall temperature of the inner wall, the upper wall surface temperature is above the lower case, in order to prevent excessive thermal stress, the boiler must be slow step. The steam boiler ignition during bootstrapping, the operating state of the steam parameters of the boiler, the water level and the respective members is constantly changing. Therefore, in order to effectively prevent the occurrence of abnormal conditions and other hazards, be sure to arrange professional staff to closely monitor a variety of changes in the meter indication. By adjusting the control pressure, some of the process parameters of temperature, the normal water level in the range of the allowable, but also the reliability of the assessment, a variety of security instruments, valves and other components, so as to ensure adequate safety and stable operation of the steam boiler . The higher pressure steam boiler, energy consumption will be higher and higher, the corresponding steam pressure equipment and piping, and the valve will also increase accepted, which also makes maintenance protection boiler steam demand is relatively increased, and steam generated in the heat generation and transport processes and also increase the proportion wandered. High pressure steam mouth of salt will increase with increasing pressure and that the heated area of the waterwall tubes salt, smoke tubes and the like drum phenomenon generating structure, resulting in overheating foaming, clogging phenomenon, can cause severe pipeline explosion and other dangerous accidents.
Presentation on the parameters of the hot water boiler gas hot water boiler, in our country at this stage, mainly used for domestic heating and domestic hot water, laundry and sterilization, cooking, cooking, cleaning. Pressure, temperature and heat for hot water is a reflection of the boiler characteristic physical quantities, the basic technical parameters of hot water boiler. Use hot water boiler must understand these technical parameters, allow the boiler to better serve our production and life. Heat for hot water boiler for hot water boiler, also known as heat boiler capacity, power boiler. It refers to the supply of heat in the boiler unit of time, in the past expressed kcal / h, and now China's legal unit uses megawatts MW, KW KW to represent, there are some people expressed in tons of hot water boiler output size, such as 2 tons of hot water boiler in your company to give me what price? It is wrong to say, there is no such industry units and argument. Hot water boiler for heat is determined by the heating load. During the heating period of a time zone, the amount of circulating hot water boiler is constant, the temperature rise of the hot water boiler (for the difference between the temperature of the return water) that is reflected in the size of the boiler output (load), and therefore, the thermal regulation or control i.e., the temperature of the boiler water supply control or regulation of the boiler load. Hot boiler water temperature hot water boiler water temperature, return water temperature, according to standard are marked on the nameplate GB316682. The actual boiler for hot water, return water temperature according to weather conditions during the heating and the heating requirements of the decision. The adjustment method for heating in winter, there is a change of mass of the boiler water temperature adjustment, changing the circulation flow rate adjusting an amount of the boiler, therefore, the hot water boiler water temperature can change according to need. Nameplate pressure hot water boiler design pressure of the boiler and the actual operating pressure is different. Nameplate pressure hot water boiler is a boiler manufacturer according to the national standard GB316682 hot water boiler series product design parameter, which represents the working pressure hot water boiler. The actual working pressure hot water boiler is determined by the operating pressure of the circulation pump, which is generally lower than the pressure plate. To prevent the boiler water, water vaporization occurs, the pot should be maintained to some extent a pressure above the saturation pressure at the corresponding temperature.
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