双赢彩票

广东金顺电器有限公司
Guangdong Jinshun Electric Appliance Co., Ltd
资讯分类(lei)

资讯分类

副标(biao)题

在(zai)线客服
 工作时间
周(zhou)一至周(zhou)五 :8:30-17:30
周(zhou)六至周(zhou)日(ri) :9:00-17:00
 联系方式
客服热线:0758-8253888
邮箱:jinshun333@126.com

电热管的结构特性及使用注意事项


    电(dian)(dian)热(re)(re)(re)管(guan)为(wei)管(guan)状(zhuang)电(dian)(dian)加热(re)(re)(re)器(qi)元(yuan)件,是(shi)在(zai)金属管(guan)中放入卷线状(zhuang)的(de)发热(re)(re)(re)丝,并在(zai)其周围及空隙部(bu)分填入有(you)(you)良好耐(nai)热(re)(re)(re)性、导热(re)(re)(re)性和绝缘(yuan)性的(de)绝缘(yuan)粉末,发热(re)(re)(re)丝两端部(bu)具(ju)有(you)(you)引(yin)(yin)出棒或引(yin)(yin)出线接出。它具(ju)有(you)(you)结构简(jian)单,机械强(qiang)度高、热(re)(re)(re)效率高、安全(quan)可靠(kao)、安装简(jian)便、使用(yong)寿命长等特(te)点。广泛适(shi)用(yong)于各种(zhong)硝石槽、水(shui)槽、油槽、酸碱槽、易熔金属熔化炉、空气加热(re)(re)(re)炉、干(gan)燥炉、干(gan)燥箱、热(re)(re)(re)压模等装置。电(dian)(dian)热(re)(re)(re)管(guan)是(shi)专门将电(dian)(dian)能(neng)转化为(wei)热(re)(re)(re)能(neng)的(de)电(dian)(dian)器(qi)元(yuan)件,由于其价格便宜,使用(yong)方便,安装方便,***,被(bei)广泛使用(yong)在(zai)各种(zhong)加热(re)(re)(re)场合。

    电热管的使用注(zhu)意事项:

  1、电(dian)热管元(yuan)件允许在(zai)下列条件下工作: A.空(kong)气相(xiang)对湿度(du)不(bu)大(da)于95%,无(wu)爆(bao)炸性和腐蚀性气体。 B.工作电(dian)压应不(bu)大(da)于额定值的1.1倍(bei),外壳(qiao)应有(you)效(xiao)接(jie)地。 C.绝缘电(dian)阻≥1MΩ 介电(dian)强度(du):2KV/1min。

  2、电热管应(ying)做好定位固(gu)定,有效发(fa)热区***全部浸入(ru)液体或(huo)金(jin)属固(gu)体内,严禁空烧(shao)。发(fa)现管体表(biao)面有水垢(gou)或(huo)结碳(tan)时,应(ying)及时清除干净再用,以(yi)免影晌散热而(er)缩短使用寿命。

  3、加热易熔(rong)金属或(huo)固态硝盐、碱、沥清(qing)、石腊等时,应先降低使用电(dian)压,待介质(zhi)熔(rong)化后,才能升至额(e)定(ding)电(dian)压。

4、加热空(kong)气时(shi)元件(jian)应交叉均匀排列,使元件(jian)有良好的(de)散热条件(jian),使流过的(de)空(kong)气能充分(fen)加热。

  5、加(jia)热硝盐时应考虑(lv)安全措施,预防爆炸事故。

  6、接线(xian)部分应放在保温(wen)层外面,避(bi)免(mian)(mian)与(yu)腐(fu)蚀性(xing)、爆炸性(xing)介质、水份接触;引接线(xian)应能(neng)长期承受(shou)接线(xian)部分的温(wen)度(du)及加(jia)热负载,接线(xian)螺丝紧(jin)固(gu)时应避(bi)免(mian)(mian)用力过猛。

  7、元(yuan)件应(ying)存(cun)放在干燥处,若(ruo)因长期(qi)放置绝缘电阻低于(yu)1MΩ时,可在200℃左右的烘(hong)箱中干燥,或降低电压通电加热,直至恢复绝缘电阻。

  8、电(dian)热(re)管出线(xian)端的氧化镁粉,在使(shi)用场所避免(mian)受到污(wu)染物(wu)与(yu)水分渗入,防止漏(lou)电(dian)事故的发生。

    电(dian)(dian)热(re)(re)(re)(re)管(guan)(guan)(guan)(guan)的(de)典(dian)型(xing)结构一般由5个部分(fen)组成绝(jue)缘(yuan)子、封(feng)口材料、引出棒、填(tian)(tian)充(chong)料、电(dian)(dian)热(re)(re)(re)(re)丝、金属护套管(guan)(guan)(guan)(guan)、接线端。螺(luo)旋电(dian)(dian)热(re)(re)(re)(re)丝与(yu)引出帮位(wei)于金属护套管(guan)(guan)(guan)(guan)的(de)***,它的(de)制造工(gong)艺是将(jiang)(jiang)螺(luo)旋型(xing)电(dian)(dian)热(re)(re)(re)(re)丝穿入无(wu)缝钢管(guan)(guan)(guan)(guan)、铜管(guan)(guan)(guan)(guan)或(huo)者铝管(guan)(guan)(guan)(guan)内,其间隙(xi)处通过多管(guan)(guan)(guan)(guan)填(tian)(tian)充(chong)机(ji)均匀地填(tian)(tian)充(chong)既(ji)绝(jue)缘(yuan)又导热(re)(re)(re)(re)的(de)氧(yang)化介质,如结晶氧(yang)化镁粉(也可(ke)(ke)用(yong)氧(yang)化铝或(huo)洁(jie)净石英(ying)砂等)。然后用(yong)缩(suo)管(guan)(guan)(guan)(guan)机(ji)将(jiang)(jiang)管(guan)(guan)(guan)(guan)径缩(suo)细,使(shi)(shi)氧(yang)化物介质密实(密度达到(dao)3.3g/cm3以(yi)上),保证(zheng)电(dian)(dian)热(re)(re)(re)(re)丝与(yu)空气隔绝(jue),中心位(wei)置不发生偏移而(er)碰及管(guan)(guan)(guan)(guan)壁。这样。单位(wei)面积发热(re)(re)(re)(re)量就(jiu)可(ke)(ke)增加十几倍。使(shi)(shi)用(yong)寿命(ming)也可(ke)(ke)以(yi)相应的(de)提高(gao)至10年以(yi)上。与(yu)相同(tong)大热(re)(re)(re)(re)量的(de)电(dian)(dian)热(re)(re)(re)(re)元件相比,管(guan)(guan)(guan)(guan)状电(dian)(dian)热(re)(re)(re)(re)管(guan)(guan)(guan)(guan)可(ke)(ke)节约5%的(de)电(dian)(dian)热(re)(re)(re)(re)材料,而(er)热(re)(re)(re)(re)效率可(ke)(ke)达到(dao)90%以(yi)上。

    因此,从电(dian)(dian)(dian)(dian)热(re)(re)管(guan)(guan)的(de)(de)(de)(de)(de)(de)结(jie)(jie)构来(lai)看,金(jin)(jin)(jin)属管(guan)(guan)状电(dian)(dian)(dian)(dian)热(re)(re)管(guan)(guan)是(shi)(shi)(shi)目前使(shi)用(yong)(yong)广泛,结(jie)(jie)构简单(dan),性能可(ke)靠,使(shi)用(yong)(yong)寿命长(zhang)的(de)(de)(de)(de)(de)(de)密(mi)封式电(dian)(dian)(dian)(dian)热(re)(re)元(yuan)件,可(ke)成功的(de)(de)(de)(de)(de)(de)运用(yong)(yong)于工业(ye)、家用(yong)(yong)电(dian)(dian)(dian)(dian)器(qi)上,使(shi)用(yong)(yong)越(yue)来(lai)越(yue)广泛。希望更多(duo)的(de)(de)(de)(de)(de)(de)使(shi)用(yong)(yong)者(zhe)对电(dian)(dian)(dian)(dian)热(re)(re)管(guan)(guan)的(de)(de)(de)(de)(de)(de)结(jie)(jie)构原理有(you)了清楚的(de)(de)(de)(de)(de)(de)了解。对于如何研发(fa)更***的(de)(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)热(re)(re)管(guan)(guan)材质(zhi)(zhi)是(shi)(shi)(shi)很多(duo)企业(ye)都在攻关的(de)(de)(de)(de)(de)(de)难题。大多(duo)数的(de)(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)热(re)(re)管(guan)(guan)普遍是(shi)(shi)(shi)使(shi)用(yong)(yong)合金(jin)(jin)(jin)的(de)(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)热(re)(re)丝(si)来(lai)作为发(fa)热(re)(re)体。***的(de)(de)(de)(de)(de)(de)企业(ye)电(dian)(dian)(dian)(dian)热(re)(re)管(guan)(guan)都是(shi)(shi)(shi)以(yi)***的(de)(de)(de)(de)(de)(de)合金(jin)(jin)(jin)电(dian)(dian)(dian)(dian)热(re)(re)丝(si)作为发(fa)热(re)(re)体。而且(qie)还(hai)有(you)引出棒(bang)在管(guan)(guan)内(nei)都是(shi)(shi)(shi)封装了氧(yang)化镁绝缘介质(zhi)(zhi),以(yi)固定(ding)发(fa)热(re)(re)体的(de)(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)热(re)(re)元(yuan)件。在引出棒(bang)方面,其都是(shi)(shi)(shi)与(yu)发(fa)热(re)(re)体相连(lian),供元(yuan)件与(yu)电(dian)(dian)(dian)(dian)源,元(yuan)件与(yu)元(yuan)件连(lian)接用(yong)(yong)的(de)(de)(de)(de)(de)(de)金(jin)(jin)(jin)属导电(dian)(dian)(dian)(dian)零件。对于展开的(de)(de)(de)(de)(de)(de)长(zhang)度都是(shi)(shi)(shi)元(yuan)件图样上金(jin)(jin)(jin)属管(guan)(guan)的(de)(de)(de)(de)(de)(de)直(zhi)线与(yu)弯曲长(zhang)度的(de)(de)(de)(de)(de)(de)总和。


广东金顺电器有限公司
Guangdong Jinshun Electric Appliance Co., Ltd
联系人:刁先生 手机:13802851406 固话:0758-8253888 传(chuan)真:0758-8251677 地址:广东省肇(zhao)庆市高(gao)要区禄步镇文直(zhi)路36号 qq:1793422260 邮箱(xiang):jinshun333@126.com
微信公众号
阿(a)里(li)店铺手(shou)机端
双赢彩票(中国)百科全书 大发彩票_(中国)必应百科 大发彩票 (中国)网络百科 澳门沙金在线平台 -官方网站/IOS/Android通用版... 大发彩票 -词条百科