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    燃煤热风炉基本组件及其工作原理

    2018-11-11 10:49:54 无锡盛发地坪科技有限公司 阅读

    燃煤蒸汽热风炉工作原理: 燃煤蒸汽热风炉是烟煤,无烟煤及生物质作为燃料,在炉内燃烧并释放出热量,加热锅筒内的水,并使其汽化成蒸汽的热能转换设备。水在锅(锅筒)中不断被炉炉膛内燃料燃烧释放出来的能量加热,温度升高并产生带压蒸汽,由于水的沸点随压力的升高而升高,锅筒是密封的,水蒸气在里面的膨胀受到限制而产生压力形成热动力(严格的说热风炉的水蒸汽是水在锅筒中定压加热至饱和水再汽化形成的)作为一种能源广泛使用。 热风炉主要由锅壳和炉胆两大主体和保证其安全经济连续运行的附件,仪表附属设备,自控和保护系统等构成。这种热风炉是带水冷璧的锅筒式热风炉,锅筒内左右分区安排两个回程的烟火管,在锅筒前部的前烟箱折返。锅筒和下连箱之间,有下降管和水冷璧管,构成燃烧室的框架。锅筒上部有汽水分离器,以减少水蒸汽带出的水。锅体受热面是锅筒的下部,水冷璧管(上升管)和螺纹烟管(火管)。 燃煤蒸汽热风炉基本组件,大体可分为主要部件和辅助设备两个方面。 热风炉的主要部件有:

    The working principle of coal-fired steam hot-blast stove: coal-fired steam hot-blast stove is a heat conversion equipment that uses bituminous coal, anthracite and biomass as fuel, burns in the furnace and releases heat, heats water in the drum and vaporizes it into steam. Water in the pot (drum) is continuously heated by the energy released from the combustion of fuel in the furnace, the temperature rises and produces pressurized steam. As the boiling point of water rises with the increase of pressure, the drum is sealed, and the expansion of water vapor in the drum is limited, resulting in pressure to form thermal power (strictly speaking, the steam of hot stove). It is widely used as an energy source when water is heated to saturated water and vaporized in a drum. The hot blast stove is mainly composed of two main parts, the shell and the gallbladder, and accessories to ensure its safe and economic continuous operation, instrumentation accessories, automatic control and protection system, etc. This kind of hot blast stove is a pot drum type hot blast stove with water cooling. Two return pyrotechnic pipes are arranged in the left and right parts of the pot drum, and the front smoke box in the front of the pot drum is turned back. Between the drum and the lower connecting box, there are downcomer and water cooling pipe, which constitute the frame of the combustion chamber. The upper part of the drum has a steam water separator to reduce the water brought out by steam. The heating surface of the boiler body is the lower part of the boiler barrel, the water cooling pipe (rising pipe) and the thread smoke pipe (fire tube). The basic components of coal-fired steam hot blast stove can be divided into two main parts: main parts and auxiliary equipment. The main components of the hot stove are: 1、炉膛:保证热风炉燃料燃尽并使出口烟气温度冷却到对流受热面能够安全工作的数值;

    1. Furnace: To ensure that the hot stove fuel burns out and the outlet flue gas temperature is cooled to the convective heating surface to work safely;

    2、省煤器:利用热风炉尾部烟气的热量加热给水,以降低排烟温度,并起到节约燃料的作用。

    2. Economizer: Use the heat of the flue gas at the tail of the hot blast stove to heat the water supply, so as to reduce the exhaust temperature and save fuel.

    3、锅筒:将热风炉各受热面联结在一起并和水冷壁,下降管等组成水循环回路。锅筒储存汽水,可适应负荷变化,内部设有汽水分离装置以保证汽水品质,直流热风炉无锅筒。

    3. Boiler: The heating surfaces of the hot blast stove are connected together and water-cooled wall, descending pipe and other components constitute a water circulation loop. Steam water can be stored in the drum to adapt to the change of load. Steam water separator is installed inside to ensure the quality of steam water. There is no drum in the DC hot blast stove.

    4、水冷壁(上升管):热风炉的主要辐射受热面,吸收炉膛辐射热,加热工质,保护炉墙等。

    4. Water-cooled wall (riser): the main radiation heating surface of hot blast stove, absorbing radiation heat from furnace, heating working medium, protecting furnace wall, etc.

    5、燃烧设备:将燃料和燃烧所需空气送入炉膛并使燃料着火稳定,燃烧良好;

    5. Combustion equipment: the fuel and air needed for combustion are fed into the furnace and the fuel is ignited stably and burned well.

    6、空气预热器:加热燃料用的空气,以加强着火和燃烧;吸收烟气余热,降低排烟温度,提高热风炉效率。

    6. Air preheater: Heating air for fuel to enhance ignition and combustion; Absorbing waste heat of flue gas, reducing exhaust temperature and improving efficiency of hot blast stove.

    7、炉墙:是热风炉的保护外壳,起密封和保温作用。小型热风炉的重型炉墙也可起支承热风炉部件的作用。

    7. The furnace wall is the protective shell of the hot blast stove, which plays the role of sealing and heat preservation. The heavy furnace walls of small hot blast stoves can also support the components of hot blast stoves.

    8、构架:支承和固定热风炉部件, 热风炉的辅助设备主要有:

    8. Frame: supporting and fixing hot stove components.

    1、引风设备:通过引离心风机和烟筒将热风炉运行中产生的烟气送往大气。

    1. Induced draft equipment: the smoke produced in the operation of the hot blast stove is sent to the atmosphere by introducing centrifugal blower and chimney.

    2、除尘设备:除去热风炉烟气中的飞灰。

    2. Dust removal equipment: remove fly ash from the flue gas of hot blast stove.

    3、燃料供应设备:存储和运输燃料功能。

    3, fuel supply equipment: storage and transportation of fuel function.

    4、给水设备:由给水泵将经过水处理设备处理后的给水送入热风炉。

    4, water supply equipment: feed water pump will be treated by water treatment equipment after the water supply into the hot stove.

    5、除尘除渣设备:从热风炉中除去灰渣并运走。

    5. Dust removal and deslagging equipment: remove ash from hot blast stove and carry away it.

    6、送风设备:通过送风机将空气预热器加热后的空气输往炉膛及磨煤装置应用。

    6. Air supply equipment: air heated by air preheater is transported to furnace and coal grinding device by air supply fan.

    7、自动控制设备:自动检测、程序控制、自动保护和自动调节

    7. Automatic control equipment: automatic detection, program control, automatic protection and automatic adjustment.



    标签:   环氧地坪 热风炉 环氧地坪漆 环氧地坪施工 地坪
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