本文選題：CNG加氣站　切入點(diǎn)：能耗分析　出處：《西南石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：“節(jié)能降耗”是工業(yè)用能持續(xù)發(fā)展的基礎(chǔ),也是當(dāng)今各行各業(yè)關(guān)注的熱點(diǎn)問(wèn)題。壓縮天然氣(Compressed Natrual Gas,簡(jiǎn)稱CNG)作為綠色環(huán)保能源,具有良好的經(jīng)濟(jì)效益和社會(huì)效益。雖然我國(guó)的車用CNG技術(shù)已經(jīng)發(fā)展近三十年,但是現(xiàn)有CNG加氣站仍然存在運(yùn)行能耗高、效率低等問(wèn)題,制約了CNG行業(yè)的發(fā)展。本文對(duì)CNG加氣站全生產(chǎn)過(guò)程進(jìn)行能耗分析評(píng)價(jià),確定有效節(jié)能環(huán)節(jié),提出切實(shí)可行的節(jié)能途徑。 論文針對(duì)當(dāng)前CNG加氣站能耗所面臨的主要問(wèn)題,分析加氣站工藝和設(shè)備方面主要的能耗表現(xiàn)形式和環(huán)節(jié),分析了不同種類能源消耗量的計(jì)算方法,提出單位銷量綜合能耗分析方法。針對(duì)CNG生產(chǎn)工藝過(guò)程和特點(diǎn),建立可用于CNG加氣站生產(chǎn)過(guò)程能耗評(píng)價(jià)的理論體系；辨識(shí)了CNG生產(chǎn)過(guò)程中能量的消耗及其主要影響因素,確定主要能耗環(huán)節(jié)；建立CNG生產(chǎn)過(guò)程能耗的評(píng)價(jià)模型,分析評(píng)價(jià)CNG生產(chǎn)過(guò)程中主要工藝的能源消耗狀況。其次,結(jié)合所調(diào)研的數(shù)座CNG常規(guī)加氣站,采用理論分析與實(shí)際工程相結(jié)合的方法,對(duì)影響CNG加氣站壓縮系統(tǒng)、脫水裝置、儲(chǔ)氣裝置及加氣裝置能耗的主要因素進(jìn)行分析,并得到對(duì)設(shè)備能耗的影響因素和規(guī)律結(jié)果,為加氣站的節(jié)能運(yùn)行提供指導(dǎo)。 基于以上分析,針對(duì)CNG加氣站最大節(jié)能點(diǎn),即壓縮系統(tǒng)電耗,以本文選擇四川省的數(shù)座CNG常規(guī)加氣站為實(shí)例,結(jié)合加氣站實(shí)際情況和實(shí)施節(jié)能途徑的可能性,分析其能耗過(guò)高的原因,并從工藝技術(shù)、設(shè)備水平、運(yùn)營(yíng)的節(jié)能管理等方面,通過(guò)合理調(diào)節(jié)工藝參數(shù)、優(yōu)化壓縮機(jī)結(jié)構(gòu)、優(yōu)化工藝流程、優(yōu)化儲(chǔ)氣規(guī)模及節(jié)能管理,提出節(jié)能途·徑。節(jié)能效果的分析結(jié)果表明：(1)針對(duì)進(jìn)氣壓力低的現(xiàn)狀,優(yōu)化工藝流程后,生產(chǎn)能力提高達(dá)37%,生產(chǎn)效率大大提高,壓縮機(jī)啟停頻率降低,耗電量下降；(2)優(yōu)化壓縮機(jī)結(jié)構(gòu),降低各級(jí)進(jìn)排氣溫度,單耗降低,節(jié)能率達(dá)4.13%,每年可節(jié)省電費(fèi)25988元；(3)優(yōu)化加氣站儲(chǔ)氣規(guī)模,減少了4h的電力高峰用電,實(shí)現(xiàn)了調(diào)峰和減少高峰用電的目的,每年將節(jié)省電費(fèi)23萬(wàn)元,具有較好的節(jié)能效益,實(shí)現(xiàn)了壓縮系統(tǒng)的節(jié)能降耗。對(duì)CNG加氣站進(jìn)行能耗分析及節(jié)能途徑研究,可以有效的預(yù)測(cè)工藝過(guò)程和不同參數(shù)組合后的能耗變化,為工藝優(yōu)化、設(shè)備匹配及能耗的控制等決策行為提供依據(jù),對(duì)CNG行業(yè)的節(jié)能降耗工作具有一定的指導(dǎo)意義,為企業(yè)節(jié)約能源、降低成本指明了方向。
[Abstract]:"Saving energy and reducing consumption" is the foundation of the sustainable development of industrial energy use, and it is also a hot issue concerned by various industries. Compressed Natrual Gas (CNGs) is a green environmental energy source. It has good economic and social benefits. Although China's CNG technology has been developed for nearly 30 years, the existing CNG filling stations still have problems such as high energy consumption and low efficiency. This paper analyzes and evaluates the energy consumption of the whole production process of the CNG gas filling station, determines the effective energy saving link, and puts forward the feasible energy saving way. Aiming at the main problems of energy consumption in CNG filling station at present, this paper analyzes the main energy consumption forms and links in the process and equipment of the filling station, and analyzes the calculation methods of different kinds of energy consumption. A comprehensive energy consumption analysis method for unit sales volume is put forward. According to the process and characteristics of CNG production process, a theoretical system for evaluating energy consumption in production process of CNG filling station is established, and the energy consumption and its main influencing factors in CNG production process are identified. Determine the main energy consumption links, establish the energy consumption evaluation model of the CNG production process, analyze and evaluate the energy consumption of the main processes in the CNG production process. Secondly, combined with the investigation of a number of conventional CNG gas stations, By combining theoretical analysis with practical engineering, the main factors affecting the energy consumption of CNG gas station compression system, dehydration device, gas storage device and gas filling device are analyzed, and the influence factors and rules on the equipment energy consumption are obtained. Provides the instruction for the energy saving operation of the filling station. Based on the above analysis, aiming at the maximum energy saving point of CNG filling station, that is, the power consumption of compression system, this paper chooses several CNG conventional gas filling stations in Sichuan Province as examples, combining with the actual situation of the gas filling station and the possibility of implementing energy-saving approaches. This paper analyzes the causes of excessive energy consumption, and from the aspects of process technology, equipment level, energy saving management in operation and so on, optimizes the structure of compressor, optimizes the technological process, optimizes the scale of gas storage and energy saving management through adjusting process parameters reasonably. The result of the analysis of energy-saving effect shows that: 1) in view of the low intake pressure, after optimizing the technological process, the production capacity is increased to 37%, the production efficiency is greatly improved, and the frequency of compressor start and stop is reduced. Optimizing the compressor structure, lowering the intake and exhaust temperature at all levels, reducing unit consumption, saving energy up to 4.13, saving 25988 yuan per year in electricity, optimizing the gas storage scale of the gas filling station, and reducing the peak power consumption for 4 hours. The purpose of peak shaving and reducing peak power consumption has been realized, which will save 230,000 yuan of electricity charge every year, which has better energy saving benefit and realizes energy saving and consumption reduction of compression system. The energy consumption analysis and energy saving ways of CNG filling station are studied. It can effectively predict the change of energy consumption after the combination of process process and different parameters, and provide the basis for process optimization, equipment matching and energy consumption control. It has certain guiding significance for energy saving and consumption reduction in CNG industry. For the enterprise to save energy, reduce costs pointed out the direction.
【學(xué)位授予單位】：西南石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE89

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