區(qū)域鍋爐房供熱系統(tǒng)能量梯級(jí)利用技術(shù)經(jīng)濟(jì)性研究
本文選題:區(qū)域鍋爐房 + 能量梯級(jí)利用 ; 參考:《哈爾濱工業(yè)大學(xué)》2014年碩士論文
【摘要】:為減少區(qū)域鍋爐房電耗,一些供熱企業(yè)利用工業(yè)汽輪機(jī)代替電動(dòng)機(jī)拖動(dòng)熱網(wǎng)循環(huán)泵和鍋爐鼓、引風(fēng)機(jī)等負(fù)載,但是當(dāng)前工業(yè)汽輪機(jī)的使用都是無(wú)序的、無(wú)規(guī)模化的。對(duì)此,本文針對(duì)嚴(yán)寒和寒冷地區(qū)供熱規(guī)模為200萬(wàn)m2~700萬(wàn)m2,采用工業(yè)汽輪機(jī)拖動(dòng)熱網(wǎng)循環(huán)泵、鍋爐給水泵和鼓、引風(fēng)機(jī),,排汽用于汽水換熱實(shí)現(xiàn)能量梯級(jí)利用和“熱功聯(lián)產(chǎn)”的區(qū)域鍋爐房供熱系統(tǒng)進(jìn)行技術(shù)性、經(jīng)濟(jì)性和節(jié)能性研究。從而為工業(yè)汽輪機(jī)的合理配備及選擇提供一定指導(dǎo)和參考。 首先,分析了區(qū)域熱水鍋爐房供熱系統(tǒng)形式以及區(qū)域蒸汽鍋爐房和區(qū)域蒸汽熱水鍋爐房采用工業(yè)汽輪機(jī)拖動(dòng)負(fù)載,排汽用于汽水換熱實(shí)現(xiàn)能量梯級(jí)利用和“熱功聯(lián)產(chǎn)”的系統(tǒng)形式,繪制各種形式的區(qū)域鍋爐房供熱系統(tǒng)原理圖。 其次,對(duì)嚴(yán)寒和寒冷氣候區(qū)鍋爐容量和臺(tái)數(shù)的配備,鍋爐與拖動(dòng)負(fù)載的配備及拖動(dòng)負(fù)載用工業(yè)汽輪機(jī)與換熱器的配備策略進(jìn)行了研究。得到嚴(yán)寒和寒冷地區(qū)區(qū)域鍋爐房?jī)?nèi)鍋爐與拖動(dòng)負(fù)載、工業(yè)汽輪機(jī)及汽水換熱器的配置方案,并對(duì)嚴(yán)寒地區(qū)4臺(tái)29MW~99MW和寒冷地區(qū)3臺(tái)46MW~99MW的區(qū)域熱水鍋爐房、區(qū)域蒸汽鍋爐房和區(qū)域蒸汽熱水鍋爐房進(jìn)行配備。 再次,對(duì)嚴(yán)寒和寒冷地區(qū)區(qū)域鍋爐房供熱系統(tǒng)鍋爐及其熱網(wǎng)循環(huán)泵,鍋爐鼓、引風(fēng)機(jī)和給水泵的運(yùn)行調(diào)節(jié)和能耗進(jìn)行了研究。得到嚴(yán)寒和寒冷地區(qū)不同形式的區(qū)域鍋爐房供熱系統(tǒng)鍋爐及其拖動(dòng)負(fù)載的運(yùn)行調(diào)節(jié)公式和能耗公式,并對(duì)嚴(yán)寒和寒冷地區(qū)典型城市進(jìn)行算例分析,得到各典型城市鍋爐與拖動(dòng)負(fù)載的運(yùn)行調(diào)節(jié)過(guò)程和能耗。 最后,建立區(qū)域鍋爐房供熱系統(tǒng)單位供熱面積費(fèi)用年值的經(jīng)濟(jì)模型,并分析區(qū)域蒸汽鍋爐房和區(qū)域蒸汽熱水鍋爐房采用工業(yè)汽輪機(jī)拖動(dòng)負(fù)載的經(jīng)濟(jì)性和節(jié)能性。以嚴(yán)寒和寒冷地區(qū)供熱面積為200萬(wàn)m2~700萬(wàn)m2的供熱系統(tǒng)進(jìn)行案例分析,得到區(qū)域蒸汽熱水鍋爐房供熱系統(tǒng)經(jīng)濟(jì)性優(yōu)于區(qū)域蒸汽鍋爐房供熱系統(tǒng),蒸汽鍋爐房供熱系統(tǒng)優(yōu)于熱水鍋爐房供熱系統(tǒng);采用工業(yè)汽輪機(jī)代替電動(dòng)機(jī)拖動(dòng)負(fù)載,嚴(yán)寒地區(qū)可節(jié)電1.39kwh/m2~1.88kwh/m2,寒冷地區(qū)可節(jié)電0.96kwh/m2~1.36kwh/m2,考慮工業(yè)汽輪機(jī)拖動(dòng)負(fù)載多耗燃煤量,嚴(yán)寒地區(qū)綜合節(jié)煤量0.06kg標(biāo)準(zhǔn)煤/(m2a)~0.18kg標(biāo)準(zhǔn)煤/(m2a),寒冷地區(qū)綜合節(jié)煤0.05kg標(biāo)準(zhǔn)煤/(m2a)~0.09kg標(biāo)準(zhǔn)煤/(m2a)。
[Abstract]:In order to reduce the power consumption of regional boiler room, some heating enterprises use industrial steam turbine instead of motor to drive heat network circulating pump, boiler drum, induced fan and other loads, but at present the use of industrial steam turbine is disorderly and no scale. In this paper, in view of the heating scale of 2 million m ~ 2 ~ 7 million m ~ 2 in cold and cold regions, this paper adopts industrial steam turbine to drive heat network circulating pump, boiler feed water pump, drum, induced fan, etc. Exhaust steam is used to realize energy cascade utilization and "heat and power cogeneration" of regional boiler room heating system for technical, economic and energy saving research. Thus, it provides some guidance and reference for the reasonable configuration and selection of industrial steam turbine. Firstly, the form of district hot water boiler room heating system and the driving load of industrial steam turbine are analyzed in the district steam boiler room and district steam hot water boiler room. Exhaust steam is used for steam and water heat transfer to realize energy cascade utilization and "heat and power cogeneration" system form, and draw the schematic diagram of various forms of district boiler room heating system. Secondly, the allocation of boiler capacity and number, boiler and drag load, and industrial steam turbine and heat exchanger for driving load are studied. The configuration scheme of boiler and drag load, industrial steam turbine and steam-water heat exchanger in the boiler room in cold and cold regions is obtained, and the regional hot water boiler room of 4 29MW~99MW in cold area and 3 46MW~99MW in cold area is obtained. The area steam boiler room and the area steam hot water boiler room carries on the equipment. Thirdly, the operation regulation and energy consumption of the boiler and its circulating pump, boiler drum, induced fan and feed water pump in the district boiler room heating system in cold and cold areas are studied. The operation adjustment formula and energy consumption formula of boiler and its drag load in different forms of district boiler room heating system in cold and cold regions are obtained. Examples of typical cities in cold and cold regions are analyzed. The operation regulation process and energy consumption of typical urban boiler and drag load are obtained. Finally, an economic model of the annual cost per unit heating area of the district boiler room heating system is established, and the economy and energy saving of the regional steam boiler room and the regional steam hot water boiler room are analyzed. Based on the case study of a heating system with an area of 2 million m ~ 2 ~ 7 million m ~ 2 in cold and cold regions, it is concluded that the economy of the district steam hot water boiler room heating system is better than that of the regional steam boiler room heating system. The steam boiler room heating system is superior to the hot water boiler room heating system, the industrial steam turbine is used instead of the motor to drive the load, the power can be saved by 1.39kwhr / m2n 1.88kwhr / m2 in the cold area, and 0.96kwhr / m2c1.36kwhp / m2 by the cold region, considering the extra coal consumption of the industrial steam turbine drag load, The 0.06kg standard coal / m ~ 2a ~ (-1) standard coal / m ~ (2a) standard coal /
【學(xué)位授予單位】:哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:TU833.1
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