電站鍋爐是我國(guó)火力(lì)發電的主要方式之一,是給(gěi)人們提供電源的方法之一(yī),是非(fēi)常重要的,電站鍋爐,通俗來講就是電(diàn)廠用來發電的鍋爐,那麽,如何對電站鍋爐進行安裝呢(ne)?今天我們就和大家一起來解答一下:
大型電站鍋(guō)爐安裝:主(zhǔ)要有前牆布置、前後牆對衝布置和四角布(bù)置。按前兩種方式布置時,一般采用旋流式燃燒器,其優點是煤(méi)粉(fěn)管道布置較簡單,但不宜用於低揮發分和(hé)高灰分的燃料(liào)。
四角(jiǎo)布(bù)置就是把直(zhí)流式(shì)燃燒器布置(zhì)在爐膛四角,其噴口中心線與爐膛(táng)中心(xīn)的一個假想圓(yuán)相切。四(sì)角布置的缺點是風道布置較複雜(zá),但燃燒比較穩定,它適用於多種燃料。
電站(zhàn)鍋爐的本體結構類型主要取決於燃料特性(xìng)、鍋爐(lú)容量和蒸汽參數等因素。常(cháng)見的有倒(dǎo)U型、塔型和箱型。
倒U型適用於(yú)各種容量的鍋爐和(hé)燃料,故應用廣泛。鍋爐的高度比(bǐ)其他爐型低,受熱麵布置較方便(biàn),風機和除塵設(shè)備都可放在地麵上(shàng),但占(zhàn)地麵積較大。
塔型適用於燃用多灰煙煤和(hé)褐煤的鍋爐,無轉彎煙道,可減輕飛灰對受熱麵的局部磨損,且占地麵積較小(xiǎo)。但爐體(tǐ)高,安裝和檢修較(jiào)複雜。
箱型適(shì)用於容量較大(dà)的(de)燃(rán)油和燃(rán)氣鍋爐,其優點是結構(gòu)緊湊(còu),占地麵積較小,鍋爐與汽(qì)輪機的連接較方便。缺點是製(zhì)造工藝較(jiào)複雜,檢修困難(nán)。
以(yǐ)上就(jiù)是對如何對電站鍋爐進行安(ān)裝的簡單介紹,希望這些知識能夠幫助大家。
Power station boiler is one of the main ways of thermal power generation in China. It is one of the methods to provide power to people. It is very important. The power station boiler is, in general terms, the boiler that the power plant uses to generate electricity. So, how to install the power station boiler? ? Today we will work together with everyone to answer:
Installation of large-scale power station boilers: There are mainly front wall arrangements, front and rear wall hedging arrangements, and four-corner arrangements. When arranged in the first two ways, swirling burners are generally used. The advantage is that the pulverized coal pipeline arrangement is relatively simple, but it is not suitable for low volatile matter and high ash fuel.
The four-corner arrangement is to arrange the DC burners at the four corners of the hearth, with the centerline of the spout tangent to an imaginary circle in the center of the hearth. The disadvantage of the four-corner arrangement is that the air duct layout is more complicated, but the combustion is relatively stable and it is suitable for a variety of fuels.
The type of the main body structure of a power station boiler depends mainly on factors such as fuel characteristics, boiler capacity, and steam parameters. Common inverted U-shaped, tower and box.
Inverted U-type for a variety of capacity of the boiler and fuel, it is widely used. The height of the boiler is lower than that of other furnaces, and the heating surface is arranged more conveniently. Fans and dust removal equipment can be placed on the ground, but the floor space is large.
The tower type is suitable for boilers burning more bituminous bituminous coal and lignite, and there is no turning flue, which can reduce the local abrasion of the fly ash on the heated surface and has a small footprint. But the furnace is high, installation and maintenance more complicated.
The box type is suitable for large-capacity fuel and gas boilers. Its advantages are compact structure, small floor space, and convenient connection between the boiler and the steam turbine. The disadvantage is the manufacturing process is more complex, maintenance difficulties.
The above is a brief introduction on how to install the power station boiler, I hope this knowledge can help everyone.