發(fā)布時(shí)間：2018-05-31 15:57

  本文選題：地源熱泵 + 地埋管換熱器　； 參考：《東華大學(xué)》2013年碩士論文

【摘要】：空調(diào)系統(tǒng)的節(jié)能是建筑節(jié)能中一個(gè)迫切需要解決的問(wèn)題。近年來(lái),地源熱泵空調(diào)系統(tǒng)以地表淺層地?zé)釣闊嵩礋釁R,對(duì)建筑進(jìn)行供暖和供冷,以其突出的環(huán)保和節(jié)能特性,得到了廣泛的應(yīng)用。但在系統(tǒng)的實(shí)際運(yùn)行中,由于系統(tǒng)組成復(fù)雜,人工調(diào)控操作誤差較大以及部分工作人員缺乏經(jīng)驗(yàn),往往造成系統(tǒng)的運(yùn)行管理不當(dāng),造成很大的資源浪費(fèi)。并且地源熱泵熱失衡問(wèn)題已經(jīng)成為地源熱泵系統(tǒng)正常運(yùn)行以及廣泛使用的主要限制因素。為了解決目前地源熱泵空調(diào)控制方面存在的問(wèn)題,本文擬開(kāi)發(fā)一套合理可靠的地源熱泵空調(diào)系統(tǒng)控制策略及相應(yīng)的控制軟件。 首先,對(duì)地源熱泵空調(diào)冷凍水系統(tǒng)的控制方式進(jìn)行對(duì)比研究,得出合理的一次泵變頻控制策略。針對(duì)地源熱泵空調(diào)主要部件地埋管系統(tǒng)進(jìn)行詳細(xì)的實(shí)驗(yàn)和理論分析,研究實(shí)際運(yùn)行中影響系統(tǒng)運(yùn)行效率的主要因素。研究得出地埋管地埋管出水溫度越低,機(jī)組效率越高。地埋管管內(nèi)介質(zhì)流速存在一個(gè)合理范圍,上海地區(qū)為0.4m/s～0.6m/s。并提出了合理有效的地埋管分區(qū)運(yùn)行變頻控制方式。對(duì)上海地區(qū)常用的冷卻塔復(fù)合式地源熱泵系統(tǒng)輔助側(cè)的控制策略進(jìn)行研究,通過(guò)對(duì)比分析得出,在制冷季的初期和末期冷卻塔單獨(dú)運(yùn)行,中期以地埋管出水溫度作為控制參數(shù),地埋管系統(tǒng)和冷卻塔系統(tǒng)一起運(yùn)行的運(yùn)行策略比較合理。為進(jìn)一步改善熱堆積、提高運(yùn)行的節(jié)能效果,需要對(duì)系統(tǒng)的運(yùn)行進(jìn)行實(shí)時(shí)監(jiān)測(cè),以對(duì)下一個(gè)運(yùn)行周期進(jìn)行預(yù)測(cè)控制。 然后,在此基礎(chǔ)上,本課題組搭建了一個(gè)地源熱泵實(shí)驗(yàn)平臺(tái)。并根據(jù)該實(shí)驗(yàn)平臺(tái)的具體情況,設(shè)計(jì)了一套具體可行的自動(dòng)控制策略。按照傳感器和執(zhí)行機(jī)構(gòu)為現(xiàn)場(chǎng)元件層、PLC控制器和單回路控制器為控制層、LabVIEW上位機(jī)軟件為管理層的三層網(wǎng)絡(luò)控制方案,對(duì)整個(gè)控制系統(tǒng)硬件和層與層之間的數(shù)據(jù)交換進(jìn)行整體設(shè)計(jì)、調(diào)試。 其次,根據(jù)所確定的合理控制策略和現(xiàn)有實(shí)驗(yàn)平臺(tái)開(kāi)發(fā)了一套可視化程度高、使用方便的地源熱泵自動(dòng)控制軟件。該軟件能對(duì)土壤溫度場(chǎng)和系統(tǒng)運(yùn)行狀態(tài)進(jìn)行實(shí)時(shí)監(jiān)測(cè)；能對(duì)系統(tǒng)的運(yùn)行參數(shù)進(jìn)行設(shè)定和實(shí)時(shí)調(diào)控；能對(duì)空調(diào)系統(tǒng)溫度超限、系統(tǒng)故障進(jìn)行報(bào)警提示；并能將系統(tǒng)數(shù)據(jù)實(shí)時(shí)顯示、儲(chǔ)存及打印。 最后,對(duì)整套控制系統(tǒng)的硬件系統(tǒng)和控制軟件進(jìn)行現(xiàn)場(chǎng)調(diào)試和分析,得出該控制系統(tǒng)運(yùn)行穩(wěn)定,系統(tǒng)數(shù)據(jù)的采集、顯示、超限報(bào)警等都運(yùn)行正常。該系統(tǒng)能根據(jù)地埋管出水溫度和室內(nèi)溫度的變化自動(dòng)調(diào)節(jié)運(yùn)行方式,能實(shí)現(xiàn)地源熱泵的節(jié)能變流量運(yùn)行,方便節(jié)能并能在一定程度上消除地埋管系統(tǒng)熱不平衡現(xiàn)象。 本文研究的合理控制策略和自控軟件對(duì)完善地源熱泵空調(diào)系統(tǒng)的運(yùn)行管理有重要意義。可以提高系統(tǒng)運(yùn)行效率,降低運(yùn)行能耗：能夠在定程度上改善地埋管系統(tǒng)土壤熱堆積問(wèn)題；有利于空調(diào)系統(tǒng)運(yùn)行管理,能夠直觀的了解系統(tǒng)運(yùn)行狀況,降低運(yùn)行管理費(fèi)用；有利于地源熱泵空調(diào)在實(shí)際工程中進(jìn)一步推廣應(yīng)用。
[Abstract]:The energy - saving of air - conditioning system is an urgent problem in building energy - saving . In recent years , ground - source heat pump air - conditioning system has been widely used in recent years because of its complex composition , large error of manual regulation and operation and lack of experience . In order to solve the problems existing in the air - conditioning control of ground - source heat pump , a reasonable and reliable control strategy of ground - source heat pump air - conditioning system and corresponding control software are proposed in this paper .

First , the control method of the air - conditioning chilled water system of ground - source heat pump is studied . The main factors that influence the operation efficiency of the system are discussed in detail . The results show that the lower the water outlet temperature of the ground - source heat pump , the higher the efficiency of the unit , the more reasonable the operating strategy of the underground pipe system is 0.4m / s ~ 0.6m / s . The control strategy of the underground pipe system and the cooling tower system is reasonably effective . In order to further improve the heat accumulation and improve the energy - saving effect of operation , the system operation is monitored in real time to forecast the next operation cycle .

Then , on the basis of this , a ground source heat pump experiment platform is built . According to the specific situation of the experimental platform , a specific and feasible automatic control strategy is designed . According to the sensor and executing mechanism as the field component layer , the PLC controller and the single loop controller are the control layer , the upper computer software of LabVIEW is the management layer three - layer network control scheme , and the data exchange between the hardware and the layer and the layer of the whole control system is designed and debugged .

Secondly , the automatic control software of ground source heat pump with high degree of visualization and convenient use is developed based on the reasonable control strategy and the existing experimental platform .
the running parameters of the system can be set and adjusted in real time ;
The system can alarm the temperature of the air - conditioning system and the system failure ;
and can display , store and print the system data in real time .

Finally , on - site debugging and analysis of the hardware system and control software of the whole set of control system are carried out . It is concluded that the operation of the control system is stable , and the system data collection , display and overrun alarm function normally . The system can automatically adjust the operation mode according to the variation of the water outlet temperature and the indoor temperature of the buried pipe , so that the energy - saving and variable - flow operation of the ground source heat pump can be realized , the energy - saving and energy - saving can be realized , and the heat unbalance of the underground pipe system can be eliminated to a certain extent .

The reasonable control strategy and auto - control software studied in this paper have great significance for improving the operation and management of the air - conditioning system of the source heat pump .
The system is favorable for the operation and management of the air conditioning system , and can intuitively know the operating conditions of the system and reduce the running management cost ;
and is beneficial to further popularization and application of the ground source heat pump air conditioner in practical engineering .
【學(xué)位授予單位】：東華大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TU831

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張時(shí)聰;徐偉;;國(guó)際地源熱泵技術(shù)發(fā)展及工程應(yīng)用情況[J];工程建設(shè)與設(shè)計(jì);2007年03期

2 苗國(guó)廠;白建波;盧建;鄭宇;;基于PLC和人機(jī)界面的中央空調(diào)及制冷實(shí)驗(yàn)平臺(tái)控制系統(tǒng)[J];工業(yè)控制計(jì)算機(jī);2012年01期

3 張曉力;廉小親;于重重;高甲;;基于WebAccess的地源熱泵遠(yuǎn)程監(jiān)控系統(tǒng)研究與實(shí)現(xiàn)[J];測(cè)控技術(shù);2009年06期

4 李建維;任慶昌;;變風(fēng)量系統(tǒng)變機(jī)器露點(diǎn)送風(fēng)溫度預(yù)測(cè)研究[J];建筑熱能通風(fēng)空調(diào);2008年04期

5 蘇登超,刁乃仁,方肇洪;熱泵與建筑節(jié)能[J];能源技術(shù);2003年01期

6 曹琦;張華;;計(jì)算部分負(fù)荷性能參數(shù)正確選擇冷水機(jī)組[J];暖通空調(diào);1996年06期

7 張謀雄;冷水機(jī)組變流量的性能[J];暖通空調(diào);2000年06期

8 孫一堅(jiān);空調(diào)水系統(tǒng)變流量節(jié)能控制[J];暖通空調(diào);2001年06期

9 周一芳,周邦寧;空調(diào)冷源的部分負(fù)荷性能系數(shù)計(jì)算分析[J];暖通空調(diào);2002年06期

10 張韻輝 ,呂震中 ,張小松;冷水機(jī)組的優(yōu)化運(yùn)行[J];暖通空調(diào);2004年03期

相關(guān)碩士學(xué)位論文 前10條

1 胥海倫;空調(diào)水系統(tǒng)變流量運(yùn)行管理的節(jié)能措施[D];西南交通大學(xué);2002年

2 鄒娜;空調(diào)一次泵水系統(tǒng)變流量節(jié)能分析[D];南京理工大學(xué);2005年

3 杜春旭;小型地源熱泵機(jī)組控制系統(tǒng)設(shè)計(jì)開(kāi)發(fā)[D];北京工業(yè)大學(xué);2005年

4 陳曉鋒;中央空調(diào)變流量節(jié)能運(yùn)行控制系統(tǒng)的研究和實(shí)現(xiàn)[D];重慶大學(xué);2006年

5 鄭貴兵;地源熱泵空調(diào)計(jì)算機(jī)自動(dòng)控制系統(tǒng)設(shè)計(jì)研究[D];廣西大學(xué);2007年

6 郝慶;土壤源熱泵一次泵變流量控制方式的研究[D];河北工程大學(xué);2007年

7 劉建龍;地源熱泵優(yōu)化控制系統(tǒng)研究[D];北方工業(yè)大學(xué);2008年

8 林澤;地源熱泵機(jī)房監(jiān)控系統(tǒng)的研制[D];天津大學(xué);2007年

9 毛林;一次泵變流量空調(diào)系統(tǒng)的冷卻水節(jié)能研究[D];西安建筑科技大學(xué);2009年

10 秦學(xué)深;一次泵變流量系統(tǒng)冷凍水設(shè)備能耗分析與優(yōu)化策略研究[D];西安建筑科技大學(xué);2009年

，

本文編號(hào)：1960450