Step 2x35t h cfb boiler for thermal power plant in thailand blowdown boiler blowdown step 1, the total boiler periodically open the drain valve; 2, the first valve opening a boiler, and then slowly open the secondary valve; 3, after the boiler blowdown is completed, the secondary valve is closed first, after a closed valve; sewage should slowly, to prevent water impact, such as vibration occurs if the boiler tubes and other issues, should stop sewage, and check the cause, until the fault repair during sewage; 4, boiler blowdown process, such as boiler accident, should immediately stop sewage , but the drum level is too high and soft drinks were vacated, except; 5, boiler blowdown ban two boilers at the same time. Boiler water softening equipment raw water from the inlet into the control valve, the valve body through the valve body from the upper portion, by a top (or resin pipe outside the tank, below) into the tank. Then, down through the resin layer (this is a softening, the purge is a carbon layer or the like, the same below), becomes softened water return pipe by the water distributor, up to the valve body, the valve body from the softening equipment discharge outlet. Raw water softening equipment from the inlet into the control valve, the valve body into the inlet nozzle and the outlet nozzle flows quickly, a negative pressure, so that the salt brine tank inlet valve body from the suction port salt, into the tank top.
3 large gas-fired 2x35t h cfb boiler for thermal power plant in thailand uses: as industrial innovation, advances in technology, the steam era has passed, a more advanced energy-saving heat-producing machines into people's lives, and that is the popular gas-fired boiler. In the modern era, gas boiler and what kind of role is present in our lives, which can bring us the convenience of it? Want to solve this problem, consumers need to understand the purpose of the three gas-fired boiler.
The method of prolonging the life of electric hot water 2x35t h cfb boiler for thermal power plant in thailand hearthCast iron cooling stave is the first choice for prolonging the life of electric hot water boiler hearth. In recent years, copper cooling stave has an increasing trend, but practice shows that cast iron cooling stave and copper cooling wall are adopted when the thickness of refractory material is sufficient. The temperature change of the hot surface of the refractory material is not obvious. At present, 20 years or more service life of blast furnace at home and abroad, electric hot water boiler hearth is realized by cast iron cooling stave. This shows that the cast iron cooling stave can meet the service life requirement of 20 years or more. It can be seen that the copper cooling stave has little benefit, but the cost is greatly increased. Therefore, the electric boiler recommends the furnace hearth to choose the cast iron cooling stave. 2, cooling The water pipe should be set under the bottom of the furnace: the bottom of the electric hot water boiler is not suitable for excessive cooling, and the excessive cooling is not conducive to the formation of the bottom erosion of the pot, which will aggravate the tendency of the hearth's elephant foot erosion. The practice shows that if the cooling pipe is placed on the bottom of the furnace, there will be more obvious elephant foot erosion on the bottom of the furnace, but it is better to set the cooling pipe under the bottom of the furnace. Only by adopting appropriate cooling intensity on the bottom of the furnace to promote the formation of reasonable bottom-like erosion of the boiler can the corrosion tendency of the hearth's elephant feet be alleviated and the life of the hearth can be prolonged. 3, deepen the depth of the dead iron layer: the United Kingdom, Japan, Germany and other countries, according to their blast furnace use, all proposed to add the dead iron layer Deep to more than 25%, it is beneficial to improve the life of electric hot water boiler hearth. Increasing the dead iron layer has more effect on delaying the circulation erosion of the furnace hearth of the electric hot water boiler than the penetration erosion of hot metal. Therefore, deepening the dead iron layer will increase the erosion area of the hearth, but the weakening of the circulation will delay the erosion speed in the direction of the thickness of the furnace wall. It's good for a long life. 4, thinner hearth refractory configuration: electric hot water boiler hearth refractory configuration must be aimed at forming stable slag-iron solidifying layer, blast furnace hearth longevity has been proved by practice. No matter how high-quality carbon bricks and thickness of furnace walls are used, it is impossible to match the mechanical and chemical properties of hearth slag iron. When erosion is counterbalanced, it will be quickly eroded. Only by forming a stable slag-iron solidifying layer can the hearth achieve a long life. In the design, the hot surface temperature of the carbon brick should be lowered by the effective heat transfer system of the furnace wall, so that the hot surface of the carbon brick can form a stable slag-iron solidifying layer, and the slag-iron solidifying layer should be used to resist the erosion of hot metal in the hearth and various kinds of machinery so as to realize the longevity of the hearth. In the hearth heat transfer system, the thermal resistance of the carbon brick is the largest, reaching 48%. The heat transfer capacity of the carbon brick wall is very important to the formation of the slag skin of the hearth. From this point of view, the hearth material is too thick, especially the brick lining in the iron section is thickened to 1.9 meters, and the section of the hearth is changed from circular to circular. As a square, this thickening method is harmful. The calculation of cooling heat transfer shows that the thickness of carbon brick lining should not be more than 1 meter. It is very beneficial to apply the thin hearth refractory configuration, to bake the protective carbon brick before opening, and to spray the protective layer with good performance within 1 layer of 100mm in the hearth.
Two of the country this year, the NLD Central Democratic National Construction Association Central and made a number of proposals, to speed up the clean and efficient use of coal mine environmental governance has become a hot topic.
NLD central in the proposal pointed out that China's energy structure adjustment should take Duocuobingju way, multi-pronged approach in phasing suppress excessive coal consumption, promote clean and efficient use of coal, etc., it is necessary to focus on environmental protection, but also to resolve the coal system pressure generated by the financial industry, but also pay attention to the industry employment situation of people's livelihood and social stability.
National Bureau of Statistics recently revealed that total energy consumption in 2018, 4.64 billion tons of standard coal, up 3.3 percent over the previous year, of which coal consumption increased by 1.0%. According to statistics, China's coal demand had reached 4.24 billion tons high point in 2013. From 2014 to 2016, coal consumption declined for three consecutive years, from 2017 to 2018 and began to grow, demand for electricity is the most important factor in the growth of coal consumption in our country return to growth.
NLD central in the proposal put forward, to change the traditional extensive coal utilization, promote clean and efficient use is an inevitable choice to realize energy structure adjustment "soft landing". As most of the early years of huge capital investment in the coal industry to achieve through bank credit, the current coal production capacity is still excess capacity, low coal prices, in this case, it should gradually promote the adjustment of energy structure through technology, etc., should not too quickly, leading to financial system pressure increases, the pressure to raise employment and livelihood.
Proposals suggest that the development of coal-based regional energy center, to achieve energy efficiency an "electricity, gas, cold, heat, water" comprehensive energy plan overall, a substantial increase in thermoelectric projects. Forced to upgrade enterprise technology through carbon taxes and sewage charges, increase the proportion of clean energy use. Regional Center for Alternative Energy Development dispersed small boilers. Accelerate the development of clean coal conversion industry, the direct liquefaction of coal, industrialization indirect coal liquefaction, coal gas, coal, ethylene glycol and other technologies to increase support development efforts.