【電熱(re)(re)水(shui)器(qi)原理】電熱(re)(re)水(shui)器(qi)的(de)工作原理是什么(me) 電熱(re)(re)水(shui)器(qi)的(de)分類(lei)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(jia)熱槽(cao)(cao)板(ban)、壓力(li)傳(chuan)感器、功率調節(jie)器、水量調節(jie)龍頭、進水管和出水管部件等組成，其中加(jia)熱槽(cao)(cao)板(ban)是(shi)即熱式電熱水器的(de)關鍵部件，由槽(cao)(cao)權、密(mi)封圈、蓋和電熱元(yuan)件組成，其電熱元(yuan)件位于槽(cao)(cao)板(ban)的(de)槽(cao)(cao)中。

即(ji)熱(re)(re)式(shi)電熱(re)(re)水器(qi)是采用直接傳(chuan)導的(de)加熱(re)(re)方式(shi)進行工作的(de)，由于(yu)電熱(re)(re)元(yuan)(yuan)件(jian)置(zhi)于(yu)槽(cao)(cao)(cao)板的(de)槽(cao)(cao)(cao)中，所以(yi)當冷水流經(jing)槽(cao)(cao)(cao)中時便(bian)能直接流經(jing)電熱(re)(re)元(yuan)(yuan)件(jian)表面(mian)而被(bei)加熱(re)(re)。又因水槽(cao)(cao)(cao)似蛇形，所以(yi)進水口流入的(de)冷水是逐步被(bei)加熱(re)(re)的(de)，在出水口處便(bian)可得(de)到溫度較高(gao)的(de)熱(re)(re)水。

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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(nei)服、保(bao)溫層(ceng)、溫控器、加(jia)熱管、鎂棒等組成。內(nei)膽用不銹鋼板(ban)、鋼板(ban)等制(zhi)成，經(jing)受1.2MPa水壓檢(jian)驗不滲漏(lou);保(bao)溫層(ceng)由聚氨(an)酯整體發泡而成。電熱水器帶有漏(lou)電保(bao)護(hu)、防干燒保(bao)護(hu)、防超溫保(bao)護(hu)等安全(quan)裝置(zhi)。

通(tong)電(dian)(dian)(dian)(dian)加熱(re)(re)(re)(re)(re)時(shi)，加熱(re)(re)(re)(re)(re)指(zhi)示(shi)燈(deng)亮(liang)，當水(shui)溫(wen)(wen)(wen)(wen)達到頂設溫(wen)(wen)(wen)(wen)度時(shi)，溫(wen)(wen)(wen)(wen)控(kong)器(qi)(qi)(qi)觸(chu)點(dian)斷(duan)開(kai)，加熱(re)(re)(re)(re)(re)指(zhi)示(shi)燈(deng)滅，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)水(shui)器(qi)(qi)(qi)處于(yu)斷(duan)電(dian)(dian)(dian)(dian)保(bao)溫(wen)(wen)(wen)(wen)狀(zhuang)態(tai)，此時(shi)每2小時(shi)溫(wen)(wen)(wen)(wen)度約降低(di)(di)1℃左右(視保(bao)溫(wen)(wen)(wen)(wen)層的(de)(de)保(bao)溫(wen)(wen)(wen)(wen)效果而有(you)所差異)、當水(shui)溫(wen)(wen)(wen)(wen)比預(yu)設溫(wen)(wen)(wen)(wen)度低(di)(di)幾度(一(yi)般(ban)為7℃左右)，溫(wen)(wen)(wen)(wen)控(kong)器(qi)(qi)(qi)觸(chu)點(dian)接通(tong)，加熱(re)(re)(re)(re)(re)指(zhi)示(shi)燈(deng)亮(liang)，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)水(shui)器(qi)(qi)(qi)處于(yu)通(tong)電(dian)(dian)(dian)(dian)加熱(re)(re)(re)(re)(re)狀(zhuang)態(tai)。當電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)水(shui)器(qi)(qi)(qi)處于(yu)干燒或過熱(re)(re)(re)(re)(re)狀(zhuang)態(tai)時(shi)，過熱(re)(re)(re)(re)(re)保(bao)護(hu)溫(wen)(wen)(wen)(wen)控(kong)器(qi)(qi)(qi)內的(de)(de)雙金屬(shu)片閉合，使漏(lou)電(dian)(dian)(dian)(dian)保(bao)護(hu)插(cha)頭(tou)上(shang)的(de)(de)試驗按(an)鈕(niu)觸(chu)電(dian)(dian)(dian)(dian)短路，漏(lou)電(dian)(dian)(dian)(dian)保(bao)護(hu)插(cha)頭(tou)動作，復值按(an)鈕(niu)彈(dan)起，加熱(re)(re)(re)(re)(re)管斷(duan)電(dian)(dian)(dian)(dian)。熱(re)(re)(re)(re)(re)水(shui)器(qi)(qi)(qi)的(de)(de)水(shui)溫(wen)(wen)(wen)(wen)比過熱(re)(re)(re)(re)(re)保(bao)護(hu)溫(wen)(wen)(wen)(wen)控(kong)器(qi)(qi)(qi)動作的(de)(de)溫(wen)(wen)(wen)(wen)度低(di)(di)25℃及(ji)以上(shang)時(shi)，按(an)下漏(lou)電(dian)(dian)(dian)(dian)保(bao)護(hu)插(cha)頭(tou)上(shang)的(de)(de)復值按(an)鈕(niu)，電(dian)(dian)(dian)(dian)加熱(re)(re)(re)(re)(re)管通(tong)電(dian)(dian)(dian)(dian)，熱(re)(re)(re)(re)(re)水(shui)器(qi)(qi)(qi)又處于(yu)正常(chang)(chang)狀(zhuang)態(tai);若是于(yu)燒情況，需(xu)要待加熱(re)(re)(re)(re)(re)管冷卻(que)(約10分鐘后)，才能(neng)加水(shui)，加水(shui)后，按(an)下漏(lou)電(dian)(dian)(dian)(dian)保(bao)護(hu)插(cha)頭(tou)上(shang)的(de)(de)復值按(an)鈕(niu)，電(dian)(dian)(dian)(dian)加熱(re)(re)(re)(re)(re)管通(tong)電(dian)(dian)(dian)(dian)，即可恢復正常(chang)(chang)使用。

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)可(ke)分(fen)為(wei)(wei)即熱(re)式(shi)(shi)(shi)(shi)和容(rong)(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)(shi)（又(you)稱(cheng)儲(chu)水(shui)式(shi)(shi)(shi)(shi)或儲(chu)熱(re)式(shi)(shi)(shi)(shi)）、速熱(re)式(shi)(shi)(shi)(shi)（又(you)稱(cheng)半儲(chu)水(shui)式(shi)(shi)(shi)(shi)）三種；容(rong)(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)(shi)是電熱(re)水(shui)器的主要形(xing)式(shi)(shi)(shi)(shi)，按(an)安(an)裝方式(shi)(shi)(shi)(shi)的不同(tong)，可(ke)進一步(bu)區分(fen)為(wei)(wei)立式(shi)(shi)(shi)(shi)、橫式(shi)(shi)(shi)(shi)及落(luo)地式(shi)(shi)(shi)(shi)，按(an)承壓與否，又(you)可(ke)區分(fen)為(wei)(wei)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(rong)(rong)積(ji)(ji)(ji)大小又(you)可(ke)區分(fen)為(wei)(wei)大容(rong)(rong)積(ji)(ji)(ji)與小容(rong)(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)(shi)。

1、即(ji)熱(re)式(shi)和(he)貯水(shui)式(shi)

即熱式(shi)電(dian)熱水(shui)(shui)(shui)(shui)器具有使用安全、衛生、不受水(shui)(shui)(shui)(shui)壓(ya)限制，隨時可(ke)(ke)供(gong)(gong)熱水(shui)(shui)(shui)(shui)，水(shui)(shui)(shui)(shui)溫易(yi)調節等優(you)點，在(zai)發達的西方國家(jia)已(yi)廣(guang)泛地使用，即熱式(shi)電(dian)熱水(shui)(shui)(shui)(shui)器體積(ji)小(xiao)，不須(xu)預熱，但(dan)功率大(da)，通常(chang)在(zai)4-6kw以上，工作(zuo)電(dian)流(liu)高達18-27A，我國大(da)部分住宅(zhai)的供(gong)(gong)電(dian)線(xian)路只能承受15A電(dian)流(liu)，而(er)且使用中(zhong)易(yi)受水(shui)(shui)(shui)(shui)壓(ya)影(ying)響水(shui)(shui)(shui)(shui)溫。貯水(shui)(shui)(shui)(shui)式(shi)熱水(shui)(shui)(shui)(shui)器的功率常(chang)在(zai)1.2-2KW，電(dian)流(liu)6-9A之間(jian)，一般家(jia)庭線(xian)路可(ke)(ke)滿足。貯水(shui)(shui)(shui)(shui)式(shi)具有自動恒(heng)溫保(bao)溫、停電(dian)時同樣可(ke)(ke)提供(gong)(gong)熱水(shui)(shui)(shui)(shui)，并(bing)可(ke)(ke)作(zuo)為熱水(shui)(shui)(shui)(shui)供(gong)(gong)應中(zhong)心，供(gong)(gong)應多處用水(shui)(shui)(shui)(shui)。但(dan)體積(ji)大(da)，須(xu)預熱。

2、封閉式和敞開式

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)耐壓，能(neng)同時供(gong)應多處(chu)用水。應選擇封閉式為宜(yi)受壓容器(qi)中(zhong)，圓罐(guan)形(xing)結構能(neng)承(cheng)受壓力最(zui)大，所以產品圓罐(guan)設計最(zui)合理(li)。

電熱水器選擇要點

1、內膽的選擇

貯水(shui)(shui)式(shi)電熱水(shui)(shui)器內膽是(shi)用(yong)來儲水(shui)(shui)的(de)(de)(de)，它必須具(ju)備(bei)保(bao)溫、耐壓、不生(sheng)銹、無水(shui)(shui)垢、不滲水(shui)(shui)的(de)(de)(de)特性(xing)，一旦損壞難以(yi)修(xiu)復，其壽(shou)命取決于內膽的(de)(de)(de)材質和制(zhi)造工藝，選擇好(hao)的(de)(de)(de)內膽是(shi)關鍵，目(mu)前市(shi)場上電熱水(shui)(shui)器的(de)(de)(de)內膽有以(yi)下幾種(zhong)：

(1)、鍍鋅(xin)(xin)板(ban)內(nei)膽(dan)：鋅(xin)(xin)保護(hu)層只有0.06mm，內(nei)膽(dan)成(cheng)形后不作防銹處理，易(yi)生銹、壽命短。

(2)、不(bu)銹鋼內膽：材質好，不(bu)易生(sheng)(sheng)銹；但焊縫隱患難以發現，經(jing)多次熱脹冷(leng)縮(suo)后(hou)，不(bu)銹鋼中(zhong)的鉻(ge)會(hui)被自來水(shui)中(zhong)的氯離子腐(fu)蝕而產生(sheng)(sheng)焊縫漏水(shui)。

(3)、熱鍍(du)(du)鋅(xin)(xin)覆防銹(xiu)樹(shu)脂(zhi)內(nei)膽：內(nei)膽成(cheng)形(xing)后熱鍍(du)(du)鋅(xin)(xin)，鋅(xin)(xin)合金(jin)保護層厚度在0.7mm以上，鋅(xin)(xin)含金(jin)表(biao)面再覆防銹(xiu)樹(shu)脂(zhi)，壽命較(jiao)短。

(4)、搪瓷(ci)內(nei)膽(dan)：內(nei)膽(dan)表面的(de)瓷(ci)釉為非(fei)金屬(shu)材料，既(ji)不生(sheng)銹，也無水垢，厚鋼板制作(zuo)，有(you)較強的(de)耐壓能力(li)。高(gao)釉包(bao)鋼內(nei)膽(dan)更是搪瓷(ci)內(nei)膽(dan)的(de)最高(gao)等級，非(fei)但防腐(fu)蝕形好，還有(you)一(yi)定(ding)的(de)保濕(shi)效(xiao)果(guo)，可長久使(shi)用。

2、電熱水器(qi)的質量關鍵在哪里？

如同電冰箱的質量關鍵在壓縮機，電熱水器的(de)(de)質量關(guan)鍵(jian)在于熱水(shui)(shui)器(qi)的(de)(de)內(nei)膽(dan)(dan)。電熱水(shui)(shui)器(qi)的(de)(de)內(nei)膽(dan)(dan)是用來貯(zhu)水(shui)(shui)的(de)(de)，它必(bi)須具備保(bao)溫、耐壓、不生銹、無水(shui)(shui)垢(gou)、不滲水(shui)(shui)的(de)(de)特(te)點，要達到(dao)這種特(te)性，關(guan)鍵(jian)在于內(nei)膽(dan)(dan)材(cai)料的(de)(de)選用和(he)內(nei)膽(dan)(dan)的(de)(de)制作工藝流(liu)程(cheng)。

3、究竟是圓(yuan)形的好，還是方(fang)形的好？

現今最(zui)優質的(de)國際名牌電熱(re)水器(qi)(qi)都是圓(yuan)罐形設(she)計，而不是方(fang)形設(she)計，道(dao)理(li)很簡單，因為只有圓(yuan)罐形的(de)設(she)計受力最(zui)均(jun)勻，最(zui)能承受高壓，而方(fang)形或其(qi)它形狀受力不均(jun)勻，不能耐高壓，所(suo)以(yi)電熱(re)水器(qi)(qi)耐壓性能達到最(zui)強，最(zui)好(hao)是選擇圓(yuan)形設(she)計。

4、什么是水電(dian)分離加(jia)熱器

真(zhen)正的(de)水(shui)電分(fen)離型加(jia)熱(re)器是(shi)將(jiang)電熱(re)絲(si)置(zhi)入陶(tao)瓷(ci)管(guan)道槽(cao)內，陶(tao)瓷(ci)管(guan)置(zhi)于(yu)不(bu)銹(xiu)(xiu)鋼(gang)筒內，不(bu)銹(xiu)(xiu)鋼(gang)外壁與(yu)水(shui)接觸而確保水(shui)與(yu)電的(de)絕對分(fen)離，使用(yong)再(zai)無后顧之憂(you)。