heavy oil steam boiler in tunisia
Working principle and structural characteristics of steam boiler in tunisia
Steam boiler has brought great convenience to industry. Steam boiler has driven the development of the times. The following is a brief introduction to the structural characteristics and working principle of steam boiler. Steam boiler is a machine that mainly produces steam, and many people use it, but many of them do not know much about its structure and working principle. It makes use of coal, oil, natural gas and other water-tube steam boilers with limited capacity and pressure. There is a large desire to space, and easy to arrange, steam boiler in a variety of forms. Water is heated in the drum into steam, and the heat emitted by fire in the furnace is the principle of a steam boiler. Work of steam boiler Principle:
1, the heat generated by pulverized coal combustion in the furnace is first absorbed by the water wall through radiative heat transfer, and the water boiling of the water wall is vaporized, producing a large amount of steam into the steam drum for steam separation (except for direct flow furnaces). The separated saturated steam enters the superheater and continues to absorb the flue gas heat at the top of the furnace and the horizontal flue and the tail flue through radiation and convection, and enables the superheated steam to reach the required working temperature. The steam boiler for power generation is usually equipped with a reheater, which is used to heat the steam after the high-pressure cylinder does work, and the reheat steam comes out of the reheater to go back to the middle, and the low-pressure cylinder continues to do the work to generate electricity.
2. When the pulverized coal stove is working, The position of the center of the flame will affect the amount of evaporation, generally speaking, if the center of the flame is low, the amount of evaporation will be large, and the position of the center of the flame will also affect the temperature of the superheated steam or reheated steam, as well as the high value of the flame center and the small amount of evaporation. When the flame center is low, the superheated steam, especially the reheated steam temperature, will be low and vice versa.
3, the arrangement of burners, as far as coal powder furnace is concerned, there are many kinds of combustion modes, such as front and rear wall, tangential combustion, double tangential combustion, and so on, each of which has its own characteristics. The influence on steam can not be directly determined because the same furnace can not apply the above-mentioned arrangement methods at the same time.
WNS4-1.25-YQ fuel gas-fired boiler WNS4-1.25-YQ fuel gas-fired boiler WNS4-1.25-YQ fuel gas-fired boiler can be widely used in hospitals, schools, textile mills, garment factories, supermarkets, garment factories and other units. It is an efficient, low consumption, low pollution of green products. Capacity: 1-130 tons of steam, thermal efficiency: ≥95%, applicable fuel: natural gas, light oil, heavy oil, gas, etc. Application: central heating, public heating WNS4-1.25-YQ fuel gas-fired boiler various technical indicators have reached the world's advanced level, truly clean burning, non-polluting emissions, easy operation, ample output.
Category Description oil-fired boiler fuel gas-fired boiler is different from coal-fired boilers, which requires the use of a burner fuel is injected into the boiler furnace using a combustion chamber without the use of fire grate facilities. Because not produce fuel ash after burning fuel gas-fired boiler, fuel gas-fired boiler so without slagging facilities. If the hydrocarbon injected into the furnace with the air mixing within a certain range, or turned off, it is easy to explode. Therefore, fuel gas-fired boiler combustion required to adopt automation and control systems. Fuel gas boiler compact, small boiler and ventilation, water supply, control and auxiliary equipment are arranged on a chassis, the assembly may also be medium-sized factory. Boiling water boiler fuel oil boiler fuel, also known as water heaters, stove oil, furnace fuel tea, water boiler fuel, is living in a boiler, belong to the category of civilian atmospheric boiler. The boiler is a fuel oil as fuel by a burner to heat the water, when the water temperature reaches the set temperature (water), the burner stops working, heat boiler into the automatic state, the user starts to provide water, oil and water if the boiler holding tanks connected to meet like hospitals, schools and other centralized water supply demand type units. Hot water boiler fuel oil hot water boiler fuel refers to fuel have mainly boiler fuel hot water boiler with a high-tech automatic control system, with a number of security devices, water protection, overpressure protection, flame protection abnormal pressure protection, over-temperature protection flue; using high-tech structures, having a body holding a small, compact and easy to install, simple operation, automatic adjustment, the pressurized fuel to the atomizer, and then allowed a slight positive pressure fuel combustion burner more fully, to reduce the loss of gas emissions and fuel, it is a modern industrial steam to use the most convenient and most energy-efficient, environmentally friendly standard products. Fuel steam boiler in tunisia fuel (gas) steam boiler, a horizontal combustion all wet back, efficient threaded pipe, with a sound insulation outsourcing design, the boiler thermal efficiency as high as 85% or more, product design, rational structure, process performance is good, so that this product has extraordinary excellent quality.
A strict boiler installation access. For newly installed boiler strictly enforce provincial and municipal environmental policy, a full cessation of 35 tons and below, installation and construction of coal-fired boilers to inform, installation supervision, inspection and use of registration, to cooperate with the elimination (dismantling) work.
Second, the coal-fired boiler using a registration certificate cancellation notice. According to regulations, the original registration for the 83 and 10-ton coal-fired boilers using the write-off registration certificate shall be published on the government website, while informing the inspection unit will not be tested.
Third, strengthen supervision and law enforcement boiler safety, to promote the phase-out of coal-fired boilers. The boiler safety supervision and law enforcement with prevention and control of air pollution combine to crack down on illegal installation of boilers, illegal use, not extended inspection, not extended rectification risks and other illegal acts, to perform their duties according to law, to promote the phase-out of coal-fired boilers smoothly. This year we have gone through all kinds of boilers 117 units, of the 10 units are still using coal-fired boiler inspection found, ordered to stop using and timely communicated to the relevant environmental authorities and the town street, cooperate with the 10 coal-fired the dismantling of the boiler.