chain grate coal hot water boiler

chain grate coal hot water boiler

Comparison on electric boilers and gas boilers analysis that is both: a wide range of aspects of the early vote gas than electric boilers cheap, how much detail should be distinguished from gas boiler brand size, with or without condensate recovery and technical maturity of all determine the price of gas boiler; brand electric boiler, the applicable type, excellent technology, quality products; create two related conditions, such as plumbing, gas station; select high and low voltage electricity, create distribution and so on. If you choose gas boiler, gas pipeline itself, it does not demand an opening fee (usually about opening expenses 100 000), if the price of natural gas at a relatively high number, it is uneconomical, though you used to buy a cheap gas boiler, but all the cost is still reasonably high, and the gas boiler full of danger, high demand for security measures. If you choose electric boiler (that is, the kind of electromagnetic boiler instead of electric heating), capital of electromagnetic boiler itself is relatively high, after all, is a product of modern, high-tech, itself is not high-tech gas-fired boiler. If a region of relatively cheap price, it is highly recommended to use electric boiler. Plus electric boiler is the new environmental protection equipment, all kinds of pollution does not occur is in line with the development trend of the times. Fully automated equipment, personnel do not need guards. Calorific value gas in a wide range of heating season / purity of non-compliance (even if the contract explicitly re-appointment), and the calorific value of more basic electrical 1: 7, the proportion of LNG to be higher, lower coal bed methane (calorific value is multiplied by the thermal efficiency of the device ). In this case, saving electricity than gas about 1/3, according to the grapevine, is expected this year, Liaoning low power dropped to less than 0.3 yuan (business), that electricity than gas savings will exceed the estimated half. Other regions such as Xinjiang, Inner Mongolia, are relatively low price, is very suitable for power boilers. It covers an area of ​​respect, if the gas to create a gas station, then it must be a space-saving electric boiler and electric boiler is the basic module assembly, covers an area of ​​very little, according to the actual situation; and gas boiler explosion venting port and must demand of security area. Natural gas boiler manufacturers comes from the power point of view, electricity is no waste, waste gas, waste water, renewable power, gas emissions is still there, petrochemical and power is not renewable, although countries in the generosity of view, the price decline in space more large, but also more conducive to the use, in particular, Valley electric. Ultimately, if it is 30 000 m2 of non-continuous heating conditions (such as schools, shopping mall, office, public venues, factory, warehouse, etc.), advocated choose electric thermal storage boilers, the best choice for 10kv high voltage device, you can save some investment, and the province as well as policy. But if the area is less than 10,000 m2, the election 0.4kv low-voltage equipment is also good. Equipment and electric boiler is automatic operation, do not need special duty, usually around six meters do not consider lifting frame height coefficient, the heating time can be self-control, these areas are relatively municipal district heating is also very advantage. So gas boiler and electric boiler has its own advantages, depending on the actual situation in each region to decide, but to distant viewpoint in terms of selecting the electric boiler is still relatively cost-effective. In recent years, due to air pollution, coal-fired boilers were fire. Gradually immersed in people's day sideways fuel gas chain grate coal hot water boiler. But coal-fired hot water boiler fuel to bring our lunch together, but also brought us a little problem. That's hot water boiler should be how to maintain? Below small way to tell us hot water boiler maintenance: 1, according to the water quality around, once every six months cleaning operations, the eradication of hot water boiler scale, otherwise, simple convection tube fouling, resulting in convection duct obstruction and burn. 2, if found suction force reduction furnace, the furnace should be cleaning, the furnace door, or in the neck of the chimney with a rubber hose running water flushing. Scale furnace can be opened to eradicate the use of at least 1 year after the manhole survey scale thickness, plus cleaning detergents, can also be added 5-10kg caustic soda or hydrochloric acid 24-36h, add boiling furnace furnace cleaning wash. 3, the operation of the boiler water or hot water to stop the combustion of dry, to avoid the formation of disturbances, severe dry furnace if found, immediately interrupted heating boiler After cooling, to identify the reason, troubleshooting. Must not the temerity to add water, avoid cracking furnace hit. 4, when the winter shutdown, it is necessary to put the net water furnace, hot water boilers to avoid freezing. 5, when the summer without hot water boiler, furnace should put the net water, dry curing with lime. 6, hot water boiler operator skill necessary to operate, grasp the hot water boiler functions, procedures and processes, to eradicate illegal operation.

Meaning high-pressure pumps and electric boilers and boiler relations eye: boilers and high pressure pumps, What is the relationship between them? Circulating fluidized bed boiler, its coal particle size furnace, whether there requirements? And, on the boiler, which related issues, it is we do not know? These are the boiler on the product website, so the following will explain and answer, so that we have the right ideas, and know how to properly answer. 1. between the high pressure water pump and boiler, what is the relationship? High pressure water pump, its main role is to extract fresh water from a water storage tank, and then into the boiler, thus, supplemental water boiler work. Therefore, it is generally used in conjunction with the boiler. However, due to the high pressure boiler operation process, therefore, it requires high pressure pumps have a powerful driving force, in order to form a high pressure, to ensure that the work can be carried out smoothly. Further, on compression performance, but also has certain requirements.

Industrial boilers and heating boilers What is the difference? Industrial boiler product in two ways, one steam used to generate electricity or gas, such as steam vaporized available fertilizer plant, coal as raw material, synthetic fertilizers, which is typical of industrial boilers, coal-fired industrial boilers still account for a large most gas is generally waste heat boiler for recovering waste heat. Industrial boilers commonly circulating fluidized bed boiler industrial boiler thermal power equipment is important, our country is today the world's largest production and use of boilers country. China's manufacturing industry is established and developed after the founding of New China. The term "industrial boiler" in the late 1930s, with the boiler thermal power generating units with capacity increasing, in order to distinguish high-capacity power plant boiler gradually adopted. Modern large-scale industrial boilers evaporation capacity has reached 100 to 200 tons / hour. Industrial boiler structure type in the structure can be divided into fire cartridge type, water and fire tube type 3 class. ① fire tube boilers; it is an early boilers, fire tube containing only water in the boiler twelve heating pot shell fire cylinder combustion means. Low thermal efficiency, large volume and steel consumption, since substantially no production 60s. ② fire tube boiler: it is in the vertical or horizontal potshell in addition to the fire tube, a plurality of means further smoke tube. The fuel in the combustion chamber high temperature flue gas produced after combustion smoke flows through these pipes heating pot of water, and then discharged into the chimney. Compared with fire tube boiler, since it is the number of multi-smoke tube, heated area increases, the exhaust gas temperature is low, high thermal efficiency, and the consumption of steel are relatively small volume of the boiler. FIG. 1 is a horizontal tempering tube boiler. When evaporation fire tube boiler is generally not more than 15 t /, working pressure not greater than 1.6 MPa, the thermal efficiency of coal is generally about 70%, of all oil-fired boiler automatic operation, the thermal efficiency can reach 85%. ③ water tube boilers: mostly used for larger capacity, higher pressure industrial boilers. Water tube boiler has a natural circulation type and DC two. Natural circulation water tube boiler with a single drum and double drum and other structures. Figure 2 is a double drum water tube boiler. Such boilers generally disposed in the convection tube economizer, an air preheater and sometimes, in order to reduce exhaust gas temperature. When coal efficiency up to 80% higher when the fuel. No drum DC industrial boilers, and the tubing coiled behind the inner wall of the furnace tubes of the convection heating surface composition. From the end of the tube into the water supply, the steam output from the other end. Industrial boilers small current, typically with separator and automatic control devices. The fuel and fuel combustion equipment is widely used in variety of industrial boilers, coal (bituminous coal, anthracite, lignite and coal waste, etc.), oil (heavy oil, residual oil and diesel, etc.), gas (natural gas or various industrial by-product gas) plant and urban waste (wood, bagasse, black liquor and waste, etc.) and so on. Therefore, industrial boiler combustion equipment is also varied. There layer belongs chain grate combustion apparatus, the feed grate, reciprocating grate, vibrating grate, chain grate stoker plus the like (see grate). Also useful way of fluidized bed combustion (see boiling furnace). In the evaporation of 65 t / h coal-fired industrial or larger capacity boilers generally use coal. Heating boilers boiler belongs to the category of civilian life, as people's safety awareness, and after 2000 are based on building heating hot water as heat medium, it does not allow the use of steam boilers, so in general we are talking about heating boilers often refers to pressure chain grate coal hot water boiler. There are many types of heating boilers, their classification is mainly divided in accordance with the fuel type, fuel heating boilers can be divided according to the different electric heating boiler, oil heating boiler, gas heating boilers, coal-fired heating boilers, biomass heating boilers. Which includes fuel: diesel, kerosene and heavy oil; which includes gas: Natural gas, LPG, city gas and biogas.

Recently, the Tianjin Municipal Government issued the latest "2018 ~ 2019 autumn and winter tackling air pollution comprehensive management action plan" (the "Program"), "plan" put forward specific remediation requirements: the city's 65 steam tons / hour and above the basic realization of coal-fired boilers coal-fired power plant ultra-low emission standards, the development of energy-saving and ultra-low emissions rehabilitation programs for 65 steam tons / hour or more coal-fired boilers, the implementation started after the end of the heating season. Before the end of this year, within the city basically eliminated 35 tons of steam / h and coal-fired boilers of 25 iron and steel industrial enterprises discharge waste depths of governance, the basic completion of the iron and steel, building materials, thermal power, coking, casting and other key industries and coal-fired boiler fugitive emissions control.

"Plan" the implementation process to uphold the objectives warm winter and clean heating double standards, combined with the actual development of coal-fired boiler rehabilitation programs, to ensure completion before the end of the year 206,100 rural residents to use clean energy alternative to coal for combustion. Guidelines established after the first break, for the substitution of gas for coal to electricity instead of coal and other alternatives, in the case of gas supply, power supply is not implemented, the existing heating facilities will not be dismantled until the gas supply, power supply after the successful implementation be removed. And to develop high-pollution fuel combustion zone ban zoning adjustment programs, complete with electricity instead of coal, substitution of gas for coal in the region included the range of high-pollution fuel combustion zone ban. For failure to implement the heating area clean, good smokeless coal tender, production, supply, to ensure smokeless coal substitute the existing polluting large coal-fired boilers. Among them, before the heating period to complete large-scale centralized distribution, heating Doing the fragmented coal blending, before the end of December 2018, the actual realization of bulk coal dealers cleared.

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