【摘要】：針對(duì)抽灌同井運(yùn)行特性的研究不足,利用單井循環(huán)地下?lián)Q熱系統(tǒng)砂箱實(shí)驗(yàn)臺(tái),以上海地區(qū)的采暖期和空調(diào)期的時(shí)間尺度為依據(jù),開(kāi)展了抽灌同井夏冬、冬夏兩種運(yùn)行模式下運(yùn)行特性的實(shí)驗(yàn)研究。結(jié)果表明,該砂箱實(shí)驗(yàn)臺(tái)中的含水層熱量流失較快,放熱工況下熱源井排放熱量較容易,取熱工況下熱源井提取熱量較困難。抽灌同井在冷負(fù)荷占優(yōu)的地區(qū)運(yùn)行時(shí),需要采用輔助技術(shù)手段,分擔(dān)地下含水層承擔(dān)的供冷負(fù)荷,保證系統(tǒng)長(zhǎng)期可靠運(yùn)行。建議系統(tǒng)先進(jìn)行冬季取熱工況的運(yùn)行,提取含水層儲(chǔ)熱量;繼而進(jìn)行夏季排熱工況,保持熱源井較低的抽水溫度,提高熱泵機(jī)組效率。
[Abstract]:In view of the lack of research on the operation characteristics of the same well, a single well circulating underground heat transfer system sand box test bench is used to carry out the pumping and irrigation in the same well in summer and winter based on the time scale of heating and air conditioning period in Shanghai area. Experimental study on operating characteristics of two operating modes in winter and summer. The results show that the heat loss of the aquifer in the sand box test bench is faster, the heat discharge from the heat source well is easier under the heat release condition, and the heat extraction from the heat source well under the heat removal condition is more difficult. When pumping and irrigation wells operate in areas where the cooling load is dominant, auxiliary technical means should be adopted to share the cooling load borne by the underground aquifer, so as to ensure the long-term reliable operation of the system. It is suggested that the system should first carry out the operation of the heat recovery condition in winter to extract the heat storage of the aquifer and then carry out the heat discharge condition in summer to maintain the low pumping temperature of the heat source well and improve the efficiency of the heat pump unit.
【作者單位】： 北方工業(yè)大學(xué)土木工程學(xué)院;哈爾濱工業(yè)大學(xué)市政環(huán)境工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(41002085,41602278) 中國(guó)博士后科學(xué)基金(2016M601129) 供熱供燃?xì)馔L(fēng)及空調(diào)工程北京市重點(diǎn)實(shí)驗(yàn)室研究基金 北方工業(yè)大學(xué)青年拔尖人才培育計(jì)劃資助
【分類號(hào)】：TU83
，

本文編號(hào)：2170916