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| 折扣與優(yōu)惠：團購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要 燃氣鍋爐是利用燃氣產(chǎn)生的熱能，來把誰加熱成為熱水或蒸汽的機械設(shè)備。鍋爐包括鍋和爐兩部分。燃氣鍋爐相對于傳統(tǒng)的燃煤鍋爐而言，不僅產(chǎn)生得到熱值高，而且污染氣體排放很少，對燃料的利用率也比燃煤鍋爐高很多。 鍋爐中產(chǎn)生的熱水或蒸汽可直接為生活提供所需要的熱能，也可以通過蒸汽動力裝置轉(zhuǎn)換為機械能，或再通過發(fā)電機將機械能轉(zhuǎn)換為電能。產(chǎn)生蒸汽的鍋爐稱為蒸汽鍋爐，產(chǎn)生熱水的鍋爐稱為熱水鍋爐。 本次設(shè)計為2.8MW鍋殼臥式燃氣熱水鍋爐的設(shè)計計算，首先依據(jù)天然氣組分進行燃料計算，并由計算結(jié)果制作煙氣溫焓表。然后進行熱平衡計算，爐膛熱力計算和對流傳熱計算，接著進行煙風(fēng)阻力計算和鍋爐強度計算。 關(guān)鍵詞 ：燃氣鍋爐 利用率 熱平衡
Abstract: Gas-fired boiler is a machinery and equipment which use the calorific value burned by the gas to heat the water and change it into the steam. The boiler contains two parts: the pot and the burner. Compared with the traditional equipment which burned the mineral fuels, such as the coal-fired boiler, the gas-fired boilers not only have a greater calorific value, but also produce less harmful gases, and have a higher utilization. The water and the steam generated by the boiler can be directly provided for the need of the production and the living, can be converted to mechanical energy by steam power plant, or generate electrical energy by the generator. Steam boiler is an equipment which can generate steam, water boiler is an equipment which can provide hot water. This paper is about 2.8MW shell horizontal gas burning hot water boiler design and calculation. First of all, based on gas components calculation, make a table of the results produced by the temperature of flue gas enthalpy for later use. After heat balance calculation, furnace thermal calculation and calculation of the convection heat transfer, the gas and air resistance calculation and boiler strength calculation is also concerned. Keywords: Gas-fired boiler Boiler efficiency Heat balance
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