【電(dian)熱(re)水器原理】電(dian)熱(re)水器的工作原理是什么 電(dian)熱(re)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(re)(re)槽(cao)板、壓力傳(chuan)感器、功率(lv)調(diao)節器、水(shui)量調(diao)節龍頭、進水(shui)管和出水(shui)管部件等組成(cheng)，其(qi)中加熱(re)(re)槽(cao)板是(shi)即(ji)熱(re)(re)式電(dian)(dian)熱(re)(re)水(shui)器的關鍵部件，由槽(cao)權、密(mi)封圈、蓋(gai)和電(dian)(dian)熱(re)(re)元(yuan)件組成(cheng)，其(qi)電(dian)(dian)熱(re)(re)元(yuan)件位(wei)于槽(cao)板的槽(cao)中。

即熱(re)(re)(re)式電熱(re)(re)(re)水(shui)器是(shi)采用直(zhi)接傳導的(de)加(jia)熱(re)(re)(re)方(fang)式進行工作(zuo)的(de)，由于(yu)電熱(re)(re)(re)元件置于(yu)槽板的(de)槽中，所(suo)以當冷水(shui)流經槽中時便能直(zhi)接流經電熱(re)(re)(re)元件表面而(er)被加(jia)熱(re)(re)(re)。又(you)因水(shui)槽似蛇(she)形，所(suo)以進水(shui)口(kou)流入的(de)冷水(shui)是(shi)逐步被加(jia)熱(re)(re)(re)的(de)，在(zai)出水(shui)口(kou)處便可得到(dao)溫度較高的(de)熱(re)(re)(re)水(shui)。

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貯水式電熱水器的工作原理

貯水式電熱水器主要由內服、保溫(wen)層(ceng)(ceng)、溫(wen)控器、加熱管、鎂棒等組成。內膽用(yong)不銹鋼(gang)板(ban)、鋼(gang)板(ban)等制成，經受1.2MPa水(shui)壓檢(jian)驗不滲(shen)漏;保溫(wen)層(ceng)(ceng)由聚(ju)氨酯整體發(fa)泡而(er)成。電熱水(shui)器帶有漏電保護(hu)、防干燒保護(hu)、防超溫(wen)保護(hu)等安(an)全裝置。

通(tong)電(dian)(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)時(shi)(shi)，加(jia)(jia)熱(re)(re)(re)(re)指示(shi)燈亮(liang)，當水(shui)溫(wen)(wen)達到頂設溫(wen)(wen)度(du)時(shi)(shi)，溫(wen)(wen)控器(qi)(qi)觸(chu)(chu)點斷開，加(jia)(jia)熱(re)(re)(re)(re)指示(shi)燈滅，電(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)水(shui)器(qi)(qi)處于斷電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)(bao)溫(wen)(wen)狀態(tai)，此時(shi)(shi)每2小時(shi)(shi)溫(wen)(wen)度(du)約降低(di)1℃左(zuo)右(視(shi)保(bao)(bao)(bao)溫(wen)(wen)層的保(bao)(bao)(bao)溫(wen)(wen)效(xiao)果而(er)有所差異)、當水(shui)溫(wen)(wen)比預設溫(wen)(wen)度(du)低(di)幾度(du)(一般為7℃左(zuo)右)，溫(wen)(wen)控器(qi)(qi)觸(chu)(chu)點接通(tong)，加(jia)(jia)熱(re)(re)(re)(re)指示(shi)燈亮(liang)，電(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)水(shui)器(qi)(qi)處于通(tong)電(dian)(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)狀態(tai)。當電(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)水(shui)器(qi)(qi)處于干燒或過(guo)熱(re)(re)(re)(re)狀態(tai)時(shi)(shi)，過(guo)熱(re)(re)(re)(re)保(bao)(bao)(bao)護(hu)(hu)溫(wen)(wen)控器(qi)(qi)內的雙金屬片閉(bi)合，使漏(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)(bao)護(hu)(hu)插(cha)頭(tou)上的試驗按鈕(niu)觸(chu)(chu)電(dian)(dian)(dian)(dian)(dian)短路，漏(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)(bao)護(hu)(hu)插(cha)頭(tou)動作，復(fu)(fu)值按鈕(niu)彈起，加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)斷電(dian)(dian)(dian)(dian)(dian)。熱(re)(re)(re)(re)水(shui)器(qi)(qi)的水(shui)溫(wen)(wen)比過(guo)熱(re)(re)(re)(re)保(bao)(bao)(bao)護(hu)(hu)溫(wen)(wen)控器(qi)(qi)動作的溫(wen)(wen)度(du)低(di)25℃及以上時(shi)(shi)，按下漏(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)(bao)護(hu)(hu)插(cha)頭(tou)上的復(fu)(fu)值按鈕(niu)，電(dian)(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)通(tong)電(dian)(dian)(dian)(dian)(dian)，熱(re)(re)(re)(re)水(shui)器(qi)(qi)又處于正常狀態(tai);若(ruo)是于燒情況(kuang)，需(xu)要待(dai)加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)冷卻(que)(約10分鐘后)，才能(neng)加(jia)(jia)水(shui)，加(jia)(jia)水(shui)后，按下漏(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)(bao)護(hu)(hu)插(cha)頭(tou)上的復(fu)(fu)值按鈕(niu)，電(dian)(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)通(tong)電(dian)(dian)(dian)(dian)(dian)，即可恢復(fu)(fu)正常使用(yong)。

電熱水器的分類有哪些

電熱水器按(an)儲(chu)水(shui)方式(shi)(shi)(shi)(shi)(shi)(shi)可(ke)分為即熱(re)(re)式(shi)(shi)(shi)(shi)(shi)(shi)和容(rong)(rong)積式(shi)(shi)(shi)(shi)(shi)(shi)（又(you)(you)稱(cheng)儲(chu)水(shui)式(shi)(shi)(shi)(shi)(shi)(shi)或儲(chu)熱(re)(re)式(shi)(shi)(shi)(shi)(shi)(shi)）、速熱(re)(re)式(shi)(shi)(shi)(shi)(shi)(shi)（又(you)(you)稱(cheng)半儲(chu)水(shui)式(shi)(shi)(shi)(shi)(shi)(shi)）三種；容(rong)(rong)積式(shi)(shi)(shi)(shi)(shi)(shi)是電(dian)熱(re)(re)水(shui)器(qi)的主(zhu)要形式(shi)(shi)(shi)(shi)(shi)(shi)，按(an)安裝方式(shi)(shi)(shi)(shi)(shi)(shi)的不同(tong)，可(ke)進一步區(qu)分為立(li)式(shi)(shi)(shi)(shi)(shi)(shi)、橫(heng)式(shi)(shi)(shi)(shi)(shi)(shi)及落地式(shi)(shi)(shi)(shi)(shi)(shi)，按(an)承壓(ya)與(yu)否，又(you)(you)可(ke)區(qu)分為簡易式(shi)(shi)(shi)(shi)(shi)(shi)（敞開(kai)式(shi)(shi)(shi)(shi)(shi)(shi)）和承壓(ya)式(shi)(shi)(shi)(shi)(shi)(shi)（封閉式(shi)(shi)(shi)(shi)(shi)(shi)），按(an)容(rong)(rong)積大(da)小(xiao)又(you)(you)可(ke)區(qu)分為大(da)容(rong)(rong)積與(yu)小(xiao)容(rong)(rong)積式(shi)(shi)(shi)(shi)(shi)(shi)。

1、即熱式(shi)和(he)貯(zhu)水式(shi)

即(ji)熱(re)(re)(re)(re)式(shi)電(dian)(dian)熱(re)(re)(re)(re)水(shui)(shui)(shui)(shui)(shui)器(qi)具有使用安全(quan)、衛生、不受(shou)(shou)水(shui)(shui)(shui)(shui)(shui)壓(ya)限制(zhi)，隨時(shi)可(ke)供(gong)熱(re)(re)(re)(re)水(shui)(shui)(shui)(shui)(shui)，水(shui)(shui)(shui)(shui)(shui)溫易調(diao)節等優點，在發達的西方國家(jia)已廣泛地使用，即(ji)熱(re)(re)(re)(re)式(shi)電(dian)(dian)熱(re)(re)(re)(re)水(shui)(shui)(shui)(shui)(shui)器(qi)體積小，不須預(yu)(yu)熱(re)(re)(re)(re)，但功(gong)率(lv)大，通常在4-6kw以上，工作電(dian)(dian)流高達18-27A，我國大部分住宅的供(gong)電(dian)(dian)線路只能承受(shou)(shou)15A電(dian)(dian)流，而且(qie)使用中(zhong)易受(shou)(shou)水(shui)(shui)(shui)(shui)(shui)壓(ya)影響水(shui)(shui)(shui)(shui)(shui)溫。貯水(shui)(shui)(shui)(shui)(shui)式(shi)熱(re)(re)(re)(re)水(shui)(shui)(shui)(shui)(shui)器(qi)的功(gong)率(lv)常在1.2-2KW，電(dian)(dian)流6-9A之間，一(yi)般家(jia)庭線路可(ke)滿(man)足。貯水(shui)(shui)(shui)(shui)(shui)式(shi)具有自動恒溫保溫、停電(dian)(dian)時(shi)同樣可(ke)提供(gong)熱(re)(re)(re)(re)水(shui)(shui)(shui)(shui)(shui)，并可(ke)作為熱(re)(re)(re)(re)水(shui)(shui)(shui)(shui)(shui)供(gong)應中(zhong)心，供(gong)應多處用水(shui)(shui)(shui)(shui)(shui)。但體積大，須預(yu)(yu)熱(re)(re)(re)(re)。

2、封閉(bi)式(shi)和敞開(kai)式(shi)

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；封閉式電熱水器內膽可耐壓，能同時供應多處用水。應選擇(ze)封閉(bi)式為(wei)宜受壓容(rong)器(qi)中，圓罐形結構能承(cheng)受壓力最(zui)大(da)，所以(yi)產品圓罐設(she)計最(zui)合理。

電熱水器選擇要點

1、內膽的選擇

貯水式(shi)電熱(re)水器內(nei)膽(dan)是(shi)用來儲水的，它必須具備保溫、耐壓、不生(sheng)銹、無水垢(gou)、不滲水的特(te)性，一(yi)旦(dan)損(sun)壞(huai)難以(yi)修(xiu)復，其壽命取(qu)決于內(nei)膽(dan)的材質(zhi)和制造工藝，選擇好的內(nei)膽(dan)是(shi)關(guan)鍵，目前(qian)市場上電熱(re)水器的內(nei)膽(dan)有以(yi)下幾種：

(1)、鍍鋅板(ban)內膽：鋅保護(hu)層(ceng)只有0.06mm，內膽成形后不作防(fang)銹(xiu)處理，易生銹(xiu)、壽命(ming)短。

(2)、不銹鋼(gang)內(nei)膽：材質(zhi)好，不易生銹；但(dan)焊縫(feng)隱患難以發現，經多次熱脹冷縮后，不銹鋼(gang)中(zhong)的(de)鉻會被自來(lai)水中(zhong)的(de)氯離(li)子(zi)腐(fu)蝕(shi)而(er)產生焊縫(feng)漏(lou)水。

(3)、熱鍍鋅(xin)覆防(fang)銹樹(shu)脂內膽：內膽成形后熱鍍鋅(xin)，鋅(xin)合金保護層厚度(du)在0.7mm以上，鋅(xin)含金表(biao)面再覆防(fang)銹樹(shu)脂，壽命較短(duan)。

(4)、搪瓷(ci)內(nei)膽：內(nei)膽表面的瓷(ci)釉(you)為(wei)非(fei)金(jin)屬材料，既不生銹，也無水(shui)垢，厚(hou)鋼(gang)板制作，有(you)較強的耐壓(ya)能力(li)。高釉(you)包鋼(gang)內(nei)膽更是搪瓷(ci)內(nei)膽的最高等級(ji)，非(fei)但(dan)防腐蝕(shi)形好，還有(you)一定的保(bao)濕效果，可長(chang)久使用。

2、電熱水器(qi)的質量關鍵在哪里(li)？

如同電冰箱的質量關鍵在壓縮機，電熱水器的(de)質量(liang)關鍵在于(yu)熱水(shui)(shui)器(qi)的(de)內膽(dan)。電熱水(shui)(shui)器(qi)的(de)內膽(dan)是用(yong)來貯水(shui)(shui)的(de)，它必須具備(bei)保溫、耐(nai)壓、不(bu)生銹(xiu)、無水(shui)(shui)垢、不(bu)滲水(shui)(shui)的(de)特點，要達到這種特性，關鍵在于(yu)內膽(dan)材料的(de)選用(yong)和內膽(dan)的(de)制作工藝流程。

3、究竟是(shi)圓形(xing)的好(hao)，還是(shi)方(fang)形(xing)的好(hao)？

現今(jin)最(zui)優(you)質的(de)國際(ji)名牌電熱水器(qi)都是圓罐(guan)形設計(ji)(ji)，而不(bu)是方形設計(ji)(ji)，道理很簡單(dan)，因為只有圓罐(guan)形的(de)設計(ji)(ji)受(shou)(shou)力最(zui)均勻，最(zui)能承受(shou)(shou)高(gao)壓(ya)，而方形或其它形狀(zhuang)受(shou)(shou)力不(bu)均勻，不(bu)能耐(nai)高(gao)壓(ya)，所以(yi)電熱水器(qi)耐(nai)壓(ya)性能達到(dao)最(zui)強，最(zui)好是選擇(ze)圓形設計(ji)(ji)。

4、什么是水(shui)電(dian)分離加熱器

真正的水(shui)(shui)電(dian)分離型加熱器是將(jiang)電(dian)熱絲置入陶瓷(ci)管道槽內(nei)，陶瓷(ci)管置于(yu)不銹鋼(gang)筒內(nei)，不銹鋼(gang)外壁與(yu)水(shui)(shui)接(jie)觸(chu)而確(que)保(bao)水(shui)(shui)與(yu)電(dian)的絕對(dui)分離，使用再無后顧之憂。