根據實際調(diao)查情況的匯總(zong)分析(xi)，武漢已建或在建的地源熱(re)泵(beng)空調(diao)系統工(gong)程具有以下特點（省(sheng)內其他市、州(zhou)的項目(mu)大多在建設過程中，投入使(shi)用的大都為地下水地源熱(re)泵(beng)工(gong)程項目(mu)）:

l）所(suo)建(jian)地(di)(di)源熱(re)泵(beng)項(xiang)(xiang)(xiang)(xiang)目(mu)(mu)中，根據(ju)工程(cheng)項(xiang)(xiang)(xiang)(xiang)目(mu)(mu)所(suo)在地(di)(di)的水(shui)(shui)文地(di)(di)質狀(zhuang)況，選用(yong)地(di)(di)下(xia)(xia)水(shui)(shui)地(di)(di)源熱(re)泵(beng)的工程(cheng)項(xiang)(xiang)(xiang)(xiang)目(mu)(mu)居多(duo)，地(di)(di)埋管地(di)(di)源熱(re)泵(beng)工程(cheng)項(xiang)(xiang)(xiang)(xiang)目(mu)(mu)其(qi)次，地(di)(di)表水(shui)(shui)地(di)(di)源熱(re)泵(beng)工程(cheng)項(xiang)(xiang)(xiang)(xiang)目(mu)(mu)較少。其(qi)中地(di)(di)下(xia)(xia)水(shui)(shui)地(di)(di)源熱(re)泵(beng)工程(cheng)項(xiang)(xiang)(xiang)(xiang)目(mu)(mu)大部(bu)分位(wei)于漢口，而地(di)(di)埋管地(di)(di)源熱(re)泵(beng)工程(cheng)項(xiang)(xiang)(xiang)(xiang)目(mu)(mu)多(duo)在武(wu)昌和(he)漢陽。

2）采用(yong)地(di)(di)源熱泵空調(diao)項目的(de)建(jian)筑物(wu)面積(ji)從(cong)2 0 00 平(ping)方(fang)(fang)(fang)米到2 1 0 0 00 平(ping)方(fang)(fang)(fang)米，其中(zhong)1 萬平(ping)方(fang)(fang)(fang)米以上工程(cheng)占70 ％以上。根據調(diao)查的(de)數據統(tong)計(ji)，武漢地(di)(di)區(qu)目前采用(yong)地(di)(di)下水地(di)(di)源熱泵系統(tong)的(de)建(jian)筑面積(ji)己達到1 們萬平(ping)方(fang)(fang)(fang)米，而采用(yong)地(di)(di)埋管(guan)地(di)(di)源熱泵系統(tong)的(de)建(jian)筑面積(ji)也已(yi)經達到”萬平(ping)方(fang)(fang)(fang)米。可(ke)見，在武漢地(di)(di)區(qu)使用(yong)地(di)(di)下水作(zuo)為熱泵主機的(de)冷熱源項目要多于地(di)(di)埋管(guan)形(xing)式(shi)。

3）地下水(shui)地源(yuan)熱(re)泵(beng)熱(re)源(yuan)井(jing)(jing)鉆(zhan)井(jing)(jing)井(jing)(jing)深一(yi)般在(zai)(zai)40 • 50 米。單井(jing)(jing)取(qu)(qu)水(shui)量(liang)一(yi)般為20 , 1 2 0 m3 lh 。取(qu)(qu)水(shui)井(jing)(jing)1 一(yi)8 口，回水(shui)井(jing)(jing)數(shu)量(liang)一(yi)般為取(qu)(qu)水(shui)井(jing)(jing)的(de)1 • 2 倍。根據表l • 1 的(de)統(tong)計數(shu)據，武漢地區(qu)用于地下水(shui)地源(yuan)熱(re)泵(beng)系統(tong)的(de)地下水(shui)抽取(qu)(qu)量(liang)為每小時‘6 OC 立方米左右，回灌(guan)量(liang)在(zai)(zai)7C 臨1 00 % a 。

4）為(wei)水(shui)源熱(re)泵機(ji)組被腐蝕及防止(zhi)泥沙堵塞問題(ti)的出現，提(ti)高熱(re)泵主機(ji)的運行(xing)(xing)效率(lv)，地下水(shui)地源熱(re)泵工(gong)程(cheng)一般采(cai)用了板(ban)式換熱(re)器(qi)進行(xing)(xing)間(jian)接換熱(re)，板(ban)式換熱(re)器(qi)前一般均安(an)裝了旋流除(chu)沙器(qi)或(huo)物理水(shui)處理設備。經(jing)過幾年運行(xing)(xing)，熱(re)源井(jing)(jing)總的運行(xing)(xing)情況較好(hao)，個別工(gong)程(cheng)回灌井(jing)(jing)有堵塞情況。為(wei)熱(re)源井(jing)(jing)的正常(chang)運行(xing)(xing)及提(ti)高其使用時長，熱(re)源井(jing)(jing)運行(xing)(xing)三• 五年以后應(ying)進行(xing)(xing)洗(xi)井(jing)(jing)。

5）地埋管(guan)(guan)地源熱(re)(re)泵工(gong)(gong)程的鉆(zhan)井井深一般為22 • 1 00 米，孔距為3 , 5 、5 米，武漢地區(qu)鉆(zhan)孔數目己達到800 多個。埋管(guan)(guan)均采用單U 型(xing)或雙(shuang)U 型(xing)的RDPE 管(guan)(guan)，具有(you)易連接(jie)、耐腐蝕、使用時間(jian)長(chang)等優點。因地埋管(guan)(guan)地源熱(re)(re)泵工(gong)(gong)程相對較(jiao)少，本(ben)地施工(gong)(gong)隊伍鉆(zhan)孔工(gong)(gong)藝及技(ji)術水平有(you)待(dai)提(ti)高(gao)，地埋管(guan)(guan)工(gong)(gong)程施工(gong)(gong)周期相對較(jiao)長(chang)，施工(gong)(gong)成本(ben)相對較(jiao)高(gao)。

6）熱泵(beng)(beng)主機(ji)均選用(yong)水源(yuan)熱泵(beng)(beng)機(ji)組(zu)(zu)，即使(shi)是地埋管地源(yuan)熱泵(beng)(beng)系統也是采(cai)用(yong)此(ci)類型的機(ji)組(zu)(zu)，無專門針對巖土體換熱特性的熱泵(beng)(beng)機(ji)組(zu)(zu)。目前工(gong)程中己使(shi)用(yong)的水源(yuan)熱泵(beng)(beng)機(ji)組(zu)(zu)

7）從采用(yong)的水(shui)(shui)(shui)源(yuan)(yuan)熱(re)(re)泵(beng)機(ji)(ji)組(zu)類型(xing)(xing)(xing)來看(kan)，有渦旋(xuan)式(shi)、活(huo)塞式(shi)、螺桿式(shi)水(shui)(shui)(shui)源(yuan)(yuan)熱(re)(re)泵(beng)機(ji)(ji)組(zu)，有標準(zhun)型(xing)(xing)(xing)和高溫(wen)型(xing)(xing)(xing)水(shui)(shui)(shui)源(yuan)(yuan)熱(re)(re)泵(beng)機(ji)(ji)組(zu)。標準(zhun)型(xing)(xing)(xing)水(shui)(shui)(shui)源(yuan)(yuan)熱(re)(re)泵(beng)機(ji)(ji)組(zu)應(ying)用(yong)于(yu)一(yi)般(ban)無高要求的建(jian)(jian)筑(zhu)物(wu)，高溫(wen)型(xing)(xing)(xing)水(shui)(shui)(shui)源(yuan)(yuan)熱(re)(re)泵(beng)機(ji)(ji)組(zu)應(ying)用(yong)于(yu)供(gong)(gong)(gong)暖要求較高的空間建(jian)(jian)筑(zhu)物(wu)，如劇場、體育建(jian)(jian)筑(zhu)等，部分(fen)需要提供(gong)(gong)(gong)生活(huo)熱(re)(re)水(shui)(shui)(shui)的建(jian)(jian)筑(zhu)物(wu)采用(yong)了(le)(le)熱(re)(re)回收型(xing)(xing)(xing)水(shui)(shui)(shui)源(yuan)(yuan)熱(re)(re)泵(beng)機(ji)(ji)組(zu)。單(dan)(dan)個項目供(gong)(gong)(gong)冷量(liang)(liang)(liang)達到了(le)(le)8057kw ，供(gong)(gong)(gong)熱(re)(re)量(liang)(liang)(liang)達到了(le)(le)8583kw 。單(dan)(dan)臺機(ji)(ji)組(zu)供(gong)(gong)(gong)冷量(liang)(liang)(liang)為2522 . ok 訊供(gong)(gong)(gong)熱(re)(re)量(liang)(liang)(liang)為26 , 8 . Ikw 。

8）根據建(jian)筑物負荷(he)特點和初投(tou)資及(ji)地(di)(di)(di)下巖土體熱平(ping)衡(heng)需要，有(you)一定數(shu)量的工程采用了(le)(le)復(fu)合(he)式(shi)地(di)(di)(di)源熱泵(beng)系統(tong)，如冰蓄(xu)冷、水蓄(xu)冷蓄(xu)熱與地(di)(di)(di)下水地(di)(di)(di)源熱泵(beng)系統(tong)相結合(he)，降(jiang)低了(le)(le)水源熱泵(beng)機組裝機容量，同時具(ju)有(you)對電力(li)負荷(he)削峰(feng)填谷，提(ti)高(gao)電網經濟運行(xing)效率的意(yi)義：地(di)(di)(di)埋(mai)管(guan)地(di)(di)(di)源熱泵(beng)系統(tong)與冷卻塔相結合(he)，則有(you)利于減少(shao)鉆井及(ji)埋(mai)管(guan)數(shu)量而節省初投(tou)資，并有(you)利于地(di)(di)(di)下換熱器(qi)常(chang)年熱平(ping)衡(heng)。