管(guan)(guan)道(dao)凍(dong)(dong)(dong)堵(du)(du)如何化凍(dong)(dong)(dong)？目前管(guan)(guan)道(dao)化凍(dong)(dong)(dong)有四(si)種方式(shi)進行化凍(dong)(dong)(dong)，一是熱水化凍(dong)(dong)(dong)法，這種方式(shi)一般只能(neng)用(yong)于家庭水管(guan)(guan)凍(dong)(dong)(dong)堵(du)(du)，當取水龍頭的給水立(li)管(guan)(guan)被(bei)凍(dong)(dong)(dong)結不能(neng)放(fang)水時，先(xian)把龍頭卸下來，不要關(guan)來水閘門，用(yong)溫度低于80℃熱(re)水(shui)從立(li)管(guan)上往(wang)下澆(jiao)淋，立(li)管(guan)受熱(re)靠其內(nei)壁的冰開(kai)始融化(hua)，再被有(you)壓力水(shui)一頂，冰柱會從龍頭卸(xie)下來的接口處頂出來，效果(guo)較好(hao)。此方法，有(you)時用一壺熱(re)水(shui)便能解(jie)決(jue)問題（水(shui)管(guan)是否能夠解(jie)凍全(quan)拼運氣）。

  二是為噴(pen)(pen)燈解(jie)凍(dong)法，用噴(pen)(pen)燈集中(zhong)烘(hong)烤被凍(dong)結水(shui)(shui)管(guan)下部，使冰凍(dong)逐步擴散并形成(cheng)蒸氣，自下而(er)上使管(guan)內冰凍(dong)熔化。此種方法適用于熱鍍鋅鋼(gang)管(guan)（白鐵管(guan)），不適用于塑料管(guan)（您能在(zai)寒冷的北風中(zhong)‘伺(si)候’被凍(dong)水(shui)(shui)管(guan)多久？存在(zai)明顯的局限性(xing)）。

  三是為管道電伴熱帶解凍法，電伴熱帶是由一種高分子PTC材料制(zhi)成(cheng)，通(tong)電后能迅速發熱(re)(re)的伴(ban)(ban)(ban)(ban)熱(re)(re)產品(pin)。管道(dao)電伴(ban)(ban)(ban)(ban)熱(re)(re)帶(dai)(dai)(dai)種類很多：有自(zi)限溫(wen)電伴(ban)(ban)(ban)(ban)熱(re)(re)帶(dai)(dai)(dai)（或自(zi)控溫(wen)電伴(ban)(ban)(ban)(ban)熱(re)(re)帶(dai)(dai)(dai)）、防爆電伴(ban)(ban)(ban)(ban)熱(re)(re)帶(dai)(dai)(dai)、太(tai)陽能專用電伴(ban)(ban)(ban)(ban)熱(re)(re)帶(dai)(dai)(dai)等。將(jiang)電伴(ban)(ban)(ban)(ban)熱(re)(re)帶(dai)(dai)(dai)纏繞到管道(dao)上，用絕熱(re)(re)材料包(bao)裹，可(ke)用于(yu)管線防凍、防結露和(he)保溫(wen)，現在也有化(hua)冰雪系列(lie)電伴(ban)(ban)(ban)(ban)熱(re)(re)帶(dai)(dai)(dai)。

  四是為電(dian)(dian)(dian)(dian)(dian)熱(re)法(fa)熔凍，用(yong)(yong)一臺普通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)焊機(ji)把兩根(gen)電(dian)(dian)(dian)(dian)(dian)纜用(yong)(yong)夾子(zi)分別夾在凍結管(guan)(guan)兩端，把立(li)管(guan)(guan)上(shang)龍(long)頭卸下(xia)來，接(jie)通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)源(yuan)，按不同(tong)管(guan)(guan)徑(jing)調整電(dian)(dian)(dian)(dian)(dian)焊機(ji)的電(dian)(dian)(dian)(dian)(dian)流(liu)量，用(yong)(yong)不了很(hen)久(jiu)，冰(bing)柱(zhu)會(hui)從(cong)開口(kou)處躥出。這(zhe)種方法(fa)是利用(yong)(yong)水管(guan)(guan)的電(dian)(dian)(dian)(dian)(dian)阻很(hen)大，接(jie)通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)源(yuan)后，在管(guan)(guan)身上(shang)將產(chan)生熱(re)量，使管(guan)(guan)內壁的冰(bing)融化松(song)動被水壓頂出。此(ci)種方法(fa)適用(yong)(yong)于(yu)絲扣連接(jie)的熱(re)鍍鋅鋼管(guan)(guan)，不適用(yong)(yong)于(yu)膠(jiao)圈接(jie)口(kou)的管(guan)(guan)子(zi)。操作時(shi)應(ying)注意的是，在借用(yong)(yong)民用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)源(yuan)時(shi)應(ying)把其(qi)它家用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)器斷開電(dian)(dian)(dian)(dian)(dian)源(yuan)，以免功率超(chao)載(zai)，更應(ying)注意用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)安全(quan)。