本文選題：卷煙廠 + 空調(diào)系統(tǒng)　； 參考：《昆明理工大學(xué)》2017年碩士論文

【摘要】：我國(guó)煙草行業(yè)規(guī)模大,卷煙企業(yè)眾多,是國(guó)家稅收的重要來(lái)源,2016年稅收達(dá)到10795億元,國(guó)家對(duì)煙草行業(yè)的健康發(fā)展格外重視,但卷煙生產(chǎn)過(guò)程對(duì)環(huán)境溫濕度要求較高,需要空調(diào)系統(tǒng)進(jìn)行控制,在卷煙廠總能耗中空調(diào)系統(tǒng)能耗所占比重較大,甚至達(dá)到總能耗的50%,因此,實(shí)現(xiàn)卷煙廠空調(diào)系統(tǒng)的節(jié)能運(yùn)行具有重要意義。為了提高卷煙廠空調(diào)系統(tǒng)能源利用效率,本文選擇云南某卷煙廠為研究對(duì)象,進(jìn)行了現(xiàn)場(chǎng)調(diào)研和能耗實(shí)測(cè),考察了卷煙廠空調(diào)系統(tǒng)能耗高的原因,提出了針對(duì)空調(diào)系統(tǒng)能效的分層次評(píng)價(jià)模型,并結(jié)合卷煙廠空調(diào)負(fù)荷特點(diǎn)研究了最優(yōu)運(yùn)行策略。主要研究?jī)?nèi)容與結(jié)論如下:(1)通過(guò)調(diào)研發(fā)現(xiàn)卷煙廠空調(diào)系統(tǒng)能耗高的主要原因?yàn)?風(fēng)機(jī)和水泵選型大導(dǎo)致運(yùn)行中出現(xiàn)送風(fēng)再熱導(dǎo)致的冷熱抵消現(xiàn)象嚴(yán)重、“大風(fēng)量小焓差”及“大流量小溫差”現(xiàn)象、制冷機(jī)長(zhǎng)期處于部分負(fù)荷下運(yùn)行導(dǎo)致主機(jī)能效低及空氣處理流程不合理。(2)根據(jù)卷煙廠空調(diào)系統(tǒng)運(yùn)行特點(diǎn),建立了空調(diào)系統(tǒng)能效多層次評(píng)價(jià)模型,分別為空調(diào)系統(tǒng)、各空調(diào)區(qū)域和同一空調(diào)區(qū)域中各末端機(jī)組三個(gè)層次能效指標(biāo),通過(guò)對(duì)這些指標(biāo)的分析不僅能實(shí)現(xiàn)對(duì)卷煙廠空調(diào)系統(tǒng)能效的監(jiān)測(cè),同時(shí)便于對(duì)影響空調(diào)能效問(wèn)題的甄別。(3)對(duì)該卷煙廠主要車間進(jìn)行了全年熱濕負(fù)荷模擬計(jì)算并分析其特性:卷接包和慮棒成型間等大多數(shù)車間表現(xiàn)為室內(nèi)全年有余熱,需要供冷;煙絲喂絲間設(shè)計(jì)溫濕度高,只有冬季很少時(shí)段需要供暖,其他時(shí)間供冷;煙絲喂絲間由于工藝需要的相對(duì)濕度較高,全年需要需要對(duì)送風(fēng)進(jìn)行加濕;卷接包等其他車間濕度相對(duì)較低,全年均需要除濕,但除濕量較小,熱濕比在30000以上。(4)在對(duì)空調(diào)全年變工況運(yùn)行分析基礎(chǔ)上,根據(jù)現(xiàn)有空調(diào)設(shè)備構(gòu)成情況,提出了空調(diào)系統(tǒng)的節(jié)能運(yùn)行空氣處理優(yōu)化流程與策略,即根據(jù)四種工況:①新風(fēng)比焓大于室內(nèi)設(shè)計(jì)狀態(tài)空氣比焓(hwhN),②新風(fēng)比焓介于室內(nèi)空氣比焓與送風(fēng)比焓之間(hO1hw≤hN),③新風(fēng)比焓介于機(jī)器露點(diǎn)與送風(fēng)比焓之間(hO1≥hwhL),④新風(fēng)比焓小于機(jī)器露點(diǎn)的比焓(hw≤hL),分別采用不同的空氣處理流程。建立了空調(diào)系統(tǒng)最低運(yùn)行能耗多約束優(yōu)化數(shù)學(xué)模型,對(duì)該最優(yōu)問(wèn)題采用SUMMIT內(nèi)罰函數(shù)法進(jìn)行計(jì)算,求取主要最優(yōu)運(yùn)行參數(shù),且與實(shí)測(cè)能耗結(jié)果進(jìn)行比較,表明采用該優(yōu)化運(yùn)行策略具有顯著的節(jié)能效果,能使該廠空調(diào)能耗降低30%。
[Abstract]:China's tobacco industry has a large scale and a large number of cigarette enterprises, which is an important source of national tax revenue. The tax revenue reached 1.0795 trillion yuan in 2016. The state attaches great importance to the healthy development of the tobacco industry, but the process of cigarette production requires higher environmental temperature and humidity. It needs to be controlled by air conditioning system, which accounts for a large proportion of the total energy consumption of cigarette factory, and even reaches 50% of the total energy consumption. Therefore, it is of great significance to realize the energy saving operation of the air conditioning system in cigarette factory. In order to improve the energy efficiency of air conditioning system in cigarette factory, this paper chooses a cigarette factory in Yunnan as the research object, carries on the field investigation and the energy consumption measurement, investigates the reason of the high energy consumption of the air conditioning system in the cigarette factory. A hierarchical evaluation model for air conditioning system energy efficiency is proposed, and the optimal operation strategy is studied according to the characteristics of air conditioning load in cigarette factory. The main research contents and conclusions are as follows: (1) through investigation and investigation, it is found that the main reasons for the high energy consumption of air conditioning systems in cigarette factories are: the large selection of fans and pumps leads to a serious phenomenon of cold and heat cancellation caused by reheat of air supply in operation. The phenomena of "large air volume and small enthalpy difference" and "large flow rate and small temperature difference", the operation of the refrigerator under partial load for a long time lead to low energy efficiency of the main engine and unreasonable air treatment process) according to the operating characteristics of the air conditioning system in the cigarette factory, A multi-level evaluation model of air conditioning system energy efficiency is established, which includes three levels of energy efficiency index of air conditioning system, each air conditioning area and each terminal unit in the same air conditioning area. Through the analysis of these indexes, not only can the monitoring of air conditioning system energy efficiency in cigarette factory be realized, At the same time, it is convenient to discriminate the air conditioning energy efficiency problem.) the main workshop of the cigarette factory has been simulated the heat and humidity load of the whole year and analyzed its characteristics: most of the workshops, such as the winding bag and the molding room of the stuffing bar, show that there is surplus heat in the indoor all year round, which needs to be cooled; The design temperature and humidity of tobacco feeding room is high, only in winter little time need heating, other time supply cooling; the tobacco feed silk room needs to humidify the supply air in the whole year because of the high relative humidity required by the technology; The humidity of other workshops, such as winding bag, is relatively low, and it needs dehumidification all year round, but the amount of dehumidification is relatively small, and the ratio of heat to humidity is above 30000. On the basis of the analysis of the operation of the air conditioning system in the whole year, according to the composition of the existing air conditioning equipment, The optimization flow and strategy of air handling for energy saving operation of air conditioning system are put forward. That is, according to the ratio enthalpy of fresh air at 1: 1 in four working conditions is greater than that in indoor design state, the specific enthalpy of fresh air is between the specific enthalpy of indoor air and the specific enthalpy of supply air, the ratio enthalpy of fresh air is between the specific enthalpy of indoor air and the specific enthalpy of supply air, and the specific enthalpy of fresh air is between the dew point of machine and the specific enthalpy of supply air. (4) when the specific enthalpy of fresh air is less than the dewpoint of the machine, the specific enthalpy (HW) 鈮，

本文編號(hào)：2042995