【電(dian)熱水器原理】電(dian)熱水器的工作(zuo)原理是什么 電(dian)熱水器的分類有哪些

電熱水器的工作原理是什么

即熱式電熱水器的工作原理

即熱式電熱水器主要由加熱槽板(ban)、壓力傳感器、功率調節器、水(shui)(shui)量調節龍頭(tou)、進(jin)水(shui)(shui)管(guan)和出(chu)水(shui)(shui)管(guan)部件等組成(cheng)，其中加熱槽板(ban)是即熱式電(dian)(dian)熱水(shui)(shui)器的(de)關鍵部件，由槽權、密封(feng)圈(quan)、蓋和電(dian)(dian)熱元件組成(cheng)，其電(dian)(dian)熱元件位于槽板(ban)的(de)槽中。

即熱式(shi)電(dian)熱水(shui)(shui)(shui)器是采用(yong)直接(jie)傳導的(de)加熱方式(shi)進行工作的(de)，由于電(dian)熱元(yuan)件置于槽板的(de)槽中，所以當冷水(shui)(shui)(shui)流經槽中時(shi)便能直接(jie)流經電(dian)熱元(yuan)件表(biao)面而被加熱。又因水(shui)(shui)(shui)槽似蛇形(xing)，所以進水(shui)(shui)(shui)口(kou)流入的(de)冷水(shui)(shui)(shui)是逐步被加熱的(de)，在出水(shui)(shui)(shui)口(kou)處便可得到溫度較高(gao)的(de)熱水(shui)(shui)(shui)。

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貯水式電熱水器的工作原理

貯水式電熱水器主(zhu)要由內(nei)服、保(bao)溫層、溫控器、加熱(re)(re)管、鎂棒等組成(cheng)。內(nei)膽用不銹(xiu)鋼板、鋼板等制成(cheng)，經受1.2MPa水壓檢驗(yan)不滲漏(lou);保(bao)溫層由聚氨酯整體發(fa)泡而成(cheng)。電(dian)熱(re)(re)水器帶有漏(lou)電(dian)保(bao)護、防(fang)干燒保(bao)護、防(fang)超溫保(bao)護等安全裝置(zhi)。

通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)時(shi)，加(jia)(jia)熱(re)(re)(re)(re)指示(shi)(shi)燈亮，當水(shui)(shui)(shui)溫(wen)(wen)達到(dao)頂(ding)設溫(wen)(wen)度(du)時(shi)，溫(wen)(wen)控器(qi)(qi)(qi)觸(chu)點(dian)斷(duan)開(kai)，加(jia)(jia)熱(re)(re)(re)(re)指示(shi)(shi)燈滅，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)水(shui)(shui)(shui)器(qi)(qi)(qi)處于斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)保(bao)溫(wen)(wen)狀態(tai)，此(ci)時(shi)每2小時(shi)溫(wen)(wen)度(du)約(yue)降(jiang)低(di)(di)1℃左右(視(shi)保(bao)溫(wen)(wen)層的保(bao)溫(wen)(wen)效果而有(you)所差異)、當水(shui)(shui)(shui)溫(wen)(wen)比預設溫(wen)(wen)度(du)低(di)(di)幾度(du)(一般(ban)為7℃左右)，溫(wen)(wen)控器(qi)(qi)(qi)觸(chu)點(dian)接通(tong)，加(jia)(jia)熱(re)(re)(re)(re)指示(shi)(shi)燈亮，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)水(shui)(shui)(shui)器(qi)(qi)(qi)處于通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)狀態(tai)。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)水(shui)(shui)(shui)器(qi)(qi)(qi)處于干燒或過熱(re)(re)(re)(re)狀態(tai)時(shi)，過熱(re)(re)(re)(re)保(bao)護溫(wen)(wen)控器(qi)(qi)(qi)內的雙金屬片閉合，使漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)保(bao)護插(cha)(cha)頭上的試驗按(an)(an)鈕(niu)觸(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)短路，漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)保(bao)護插(cha)(cha)頭動(dong)作(zuo)，復值(zhi)按(an)(an)鈕(niu)彈起，加(jia)(jia)熱(re)(re)(re)(re)管(guan)斷(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。熱(re)(re)(re)(re)水(shui)(shui)(shui)器(qi)(qi)(qi)的水(shui)(shui)(shui)溫(wen)(wen)比過熱(re)(re)(re)(re)保(bao)護溫(wen)(wen)控器(qi)(qi)(qi)動(dong)作(zuo)的溫(wen)(wen)度(du)低(di)(di)25℃及以上時(shi)，按(an)(an)下(xia)(xia)漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)保(bao)護插(cha)(cha)頭上的復值(zhi)按(an)(an)鈕(niu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)管(guan)通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，熱(re)(re)(re)(re)水(shui)(shui)(shui)器(qi)(qi)(qi)又處于正常(chang)狀態(tai);若(ruo)是于燒情況，需要(yao)待加(jia)(jia)熱(re)(re)(re)(re)管(guan)冷卻(que)(約(yue)10分鐘后)，才能(neng)加(jia)(jia)水(shui)(shui)(shui)，加(jia)(jia)水(shui)(shui)(shui)后，按(an)(an)下(xia)(xia)漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)保(bao)護插(cha)(cha)頭上的復值(zhi)按(an)(an)鈕(niu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)管(guan)通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，即可(ke)恢復正常(chang)使用。

電熱水器的分類有哪些

電熱水器按(an)儲(chu)(chu)水(shui)方式(shi)(shi)(shi)(shi)可(ke)分為即熱(re)式(shi)(shi)(shi)(shi)和容積(ji)式(shi)(shi)(shi)(shi)（又(you)(you)稱(cheng)儲(chu)(chu)水(shui)式(shi)(shi)(shi)(shi)或儲(chu)(chu)熱(re)式(shi)(shi)(shi)(shi)）、速熱(re)式(shi)(shi)(shi)(shi)（又(you)(you)稱(cheng)半儲(chu)(chu)水(shui)式(shi)(shi)(shi)(shi)）三種；容積(ji)式(shi)(shi)(shi)(shi)是電熱(re)水(shui)器的主要形式(shi)(shi)(shi)(shi)，按(an)安裝方式(shi)(shi)(shi)(shi)的不(bu)同，可(ke)進一步(bu)區分為立(li)式(shi)(shi)(shi)(shi)、橫式(shi)(shi)(shi)(shi)及落地式(shi)(shi)(shi)(shi)，按(an)承壓與否(fou)，又(you)(you)可(ke)區分為簡易式(shi)(shi)(shi)(shi)（敞開式(shi)(shi)(shi)(shi)）和承壓式(shi)(shi)(shi)(shi)（封閉式(shi)(shi)(shi)(shi)），按(an)容積(ji)大(da)小又(you)(you)可(ke)區分為大(da)容積(ji)與小容積(ji)式(shi)(shi)(shi)(shi)。

1、即熱(re)式和(he)貯水式

即熱式(shi)電(dian)(dian)熱水器具(ju)有(you)使(shi)用安全、衛生、不受(shou)水壓(ya)限制，隨(sui)時可供(gong)熱水，水溫(wen)易調節等優點，在(zai)發(fa)達(da)(da)的西方國家(jia)已廣泛地使(shi)用，即熱式(shi)電(dian)(dian)熱水器體積(ji)小，不須(xu)預熱，但功率大(da)，通常在(zai)4-6kw以上，工作(zuo)(zuo)電(dian)(dian)流高達(da)(da)18-27A，我國大(da)部分(fen)住(zhu)宅的供(gong)電(dian)(dian)線(xian)路(lu)只能(neng)承受(shou)15A電(dian)(dian)流，而(er)且使(shi)用中易受(shou)水壓(ya)影(ying)響水溫(wen)。貯(zhu)水式(shi)熱水器的功率常在(zai)1.2-2KW，電(dian)(dian)流6-9A之間(jian)，一般家(jia)庭線(xian)路(lu)可滿(man)足。貯(zhu)水式(shi)具(ju)有(you)自動(dong)恒溫(wen)保(bao)溫(wen)、停電(dian)(dian)時同樣可提供(gong)熱水，并可作(zuo)(zuo)為熱水供(gong)應中心，供(gong)應多處(chu)用水。但體積(ji)大(da)，須(xu)預熱。

2、封閉式和敞(chang)開式

貯水式熱水器分為封閉式和敞開式兩種。敞開式熱水器內膽不耐壓，不能同時供應多處用水；封閉式電熱水器內(nei)膽可(ke)耐(nai)壓，能同(tong)時供應多處用水。應選擇封閉式為宜(yi)受壓容器中，圓罐(guan)形結構能承受壓力最大，所(suo)以產品圓罐(guan)設計最合(he)理。

電熱水器選擇要點

1、內膽的選擇

貯水(shui)式電熱水(shui)器內(nei)膽(dan)是用(yong)來儲水(shui)的(de)，它必須具備保溫、耐壓、不生(sheng)銹(xiu)、無水(shui)垢、不滲水(shui)的(de)特性，一旦損(sun)壞難以修復，其壽命取決于內(nei)膽(dan)的(de)材質(zhi)和制造工藝，選擇好的(de)內(nei)膽(dan)是關鍵，目前市場上(shang)電熱水(shui)器的(de)內(nei)膽(dan)有以下幾種(zhong)：

(1)、鍍鋅板(ban)內(nei)膽(dan)(dan)：鋅保護層只有0.06mm，內(nei)膽(dan)(dan)成形后不作(zuo)防銹(xiu)(xiu)處理，易生銹(xiu)(xiu)、壽命短(duan)。

(2)、不銹(xiu)(xiu)鋼內膽：材(cai)質好，不易生(sheng)銹(xiu)(xiu)；但焊(han)縫隱(yin)患難以發現，經多(duo)次熱脹冷縮后(hou)，不銹(xiu)(xiu)鋼中的鉻(ge)會被自來水(shui)中的氯離子腐蝕而產生(sheng)焊(han)縫漏水(shui)。

(3)、熱(re)鍍鋅覆防銹樹脂(zhi)(zhi)內膽：內膽成形(xing)后熱(re)鍍鋅，鋅合(he)金保護(hu)層厚度在0.7mm以上，鋅含金表面再覆防銹樹脂(zhi)(zhi)，壽命(ming)較短。

(4)、搪(tang)瓷(ci)(ci)內膽(dan)：內膽(dan)表面的(de)瓷(ci)(ci)釉為非(fei)金屬材料(liao)，既(ji)不生銹，也無(wu)水垢，厚(hou)鋼板制(zhi)作，有較(jiao)強(qiang)的(de)耐壓能力。高(gao)釉包鋼內膽(dan)更是搪(tang)瓷(ci)(ci)內膽(dan)的(de)最高(gao)等級，非(fei)但(dan)防(fang)腐蝕形(xing)好，還有一定的(de)保濕效(xiao)果，可長久使用。

2、電熱水(shui)器的質量關(guan)鍵在哪(na)里？

如同電冰箱的質量關鍵在壓縮機，電熱水器的質量關(guan)鍵在(zai)于(yu)熱水(shui)器的內(nei)膽(dan)。電熱水(shui)器的內(nei)膽(dan)是用來貯(zhu)水(shui)的，它必須具備(bei)保(bao)溫、耐(nai)壓(ya)、不(bu)生銹(xiu)、無(wu)水(shui)垢(gou)、不(bu)滲水(shui)的特(te)點，要達到這種(zhong)特(te)性，關(guan)鍵在(zai)于(yu)內(nei)膽(dan)材料的選用和內(nei)膽(dan)的制作工藝(yi)流程。

3、究竟是圓形(xing)的(de)好(hao)(hao)，還是方形(xing)的(de)好(hao)(hao)？

現今最(zui)優質(zhi)的(de)國際名牌電(dian)熱水器(qi)都(dou)是(shi)圓(yuan)(yuan)罐形(xing)設(she)計(ji)，而不(bu)(bu)是(shi)方(fang)形(xing)設(she)計(ji)，道理很簡單，因為(wei)只有圓(yuan)(yuan)罐形(xing)的(de)設(she)計(ji)受(shou)力(li)最(zui)均勻，最(zui)能(neng)承受(shou)高(gao)壓(ya)，而方(fang)形(xing)或其它(ta)形(xing)狀受(shou)力(li)不(bu)(bu)均勻，不(bu)(bu)能(neng)耐高(gao)壓(ya)，所以電(dian)熱水器(qi)耐壓(ya)性能(neng)達到最(zui)強，最(zui)好是(shi)選擇圓(yuan)(yuan)形(xing)設(she)計(ji)。

4、什(shen)么是水電(dian)分離加熱器

真(zhen)正的水電(dian)分(fen)離型加熱(re)器(qi)是(shi)將電(dian)熱(re)絲置入(ru)陶瓷(ci)管道槽內，陶瓷(ci)管置于不銹鋼筒(tong)內，不銹鋼外壁與水接觸而確(que)保(bao)水與電(dian)的絕對分(fen)離，使用再無后顧(gu)之憂。