電(dian)動(dong)二(er)通(tong)閥(fa)工(gong)作(zuo)原(yuan)理(li)是(shi)驅(qu)動(dong)器(qi)由(you)可(ke)逆(ni)同(tong)步(bu)馬(ma)達(da)驅(qu)動(dong),並(bing)帶(dai)磁(ci)性(xing)離(li)合(he)器(qi)。利(li)用(yong)馬(ma)達(da)通(tong)過(guo)馬(ma)達(da)轉(zhuan)子(zi)與(yu)離(li)合(he)器(qi)所(suo)產(chan)生(sheng)的(de)磁(ci)性(xing)作(zuo)用(yong),能(neng)在(zai)停(ting)頓(dun)的(de)情(qing)況(kuang)下(xia)產(chan)生(sheng)穩(wen)定(ding)的(de)扭(niu)力(li)。故(gu)此(ci)當(dang)馬(ma)達(da)設(she)有(you)電(dian)流(liu)通(tong)過(guo)時(shi)能(neng)穩(wen)定(ding)地(di)停(ting)頓(dun)在(zai)任(ren)何(he)一(yi)點(dian),當(dang)閥(fa)門(men)全(quan)開(kai)或(huo)全(quan)關(guan)時(shi)磁(ci)離(li)合(he)器(qi)分(fen)離(li),停(ting)止(zhi)調(tiao)節(jie)。驅(qu)動(dong)器(qi)的(de)遞(di)增(zeng)式(shi)或(huo)比(bi)例(li)式(shi)控(kong)製(zhi)器(qi)所(suo)發(fa)訊(xun)號(hao)能(neng)使(shi)馬(ma)達(da)順(shun)時(shi)轉(zhuan)動(dong)或(huo)逆(ni)時(shi)轉(zhuan)動(dong)。
閥(fa)體(ti)部(bu)分(fen)采(cai)用(yong)活(huo)塞(sai)式(shi)結(jie)構(gou)。具(ju)備(bei)彈(dan)簧(huang)複(fu)位(wei)及(ji)手(shou)動(dong)開(kai)閥(fa)杠(gang)杆(gan)操(cao)縱(zong)功(gong)能(neng)。閥(fa)體(ti)部(bu)分(fen)采(cai)用(yong)活(huo)塞(sai)式(shi)結(jie)構(gou)。電(dian)動(dong)閥(fa)可(ke)與(yu)溫(wen)控(kong)器(qi)配(pei)套(tao)使(shi)用(yong),由(you)溫(wen)控(kong)器(qi)控(kong)製(zhi)電(dian)動(dong)閥(fa)電(dian)機(ji),使(shi)閥(fa)門(men)開(kai)或(huo)關(guan),實(shi)現(xian)管(guan)道(dao)冷(leng)水(shui)或(huo)熱(re)水(shui)的(de)通(tong)或(huo)斷(duan),再(zai)通(tong)過(guo)風(feng)機(ji)盤(pan)管(guan)送(song)風(feng),以(yi)實(shi)現(xian)溫(wen)度(du)的(de)自(zi)動(dong)調(tiao)節(jie)。
電動二通閥它分為直動式和先導式2種,其應用範圍及特點如下:
1.驅(qu)動(dong)器(qi)由(you)單(dan)項(xiang)磁(ci)滯(zhi)同(tong)步(bu)馬(ma)達(da)驅(qu)動(dong),閥(fa)門(men)彈(dan)簧(huang)複(fu)位(wei),閥(fa)門(men)不(bu)工(gong)作(zuo)時(shi)處(chu)於(yu)常(chang)閉(bi)狀(zhuang)態(tai),當(dang)需(xu)要(yao)工(gong)作(zuo)時(shi),由(you)溫(wen)控(kong)器(qi)提(ti)供(gong)一(yi)個(ge)開(kai)啟(qi)信(xin)號(hao),使(shi)電(dian)動(dong)閥(fa)接(jie)通(tong)交(jiao)流(liu)電(dian)源(yuan)而(er)動(dong)作(zuo)。
2.用於控製冷水或熱水空調係統管道的開啟或關閉,達到控製室溫之目的。
3.開(kai)啟(qi)閥(fa)門(men),冷(leng)凍(dong)水(shui)或(huo)熱(re)水(shui)進(jin)入(ru)風(feng)機(ji)盤(pan)管(guan),為(wei)房(fang)間(jian)提(ti)供(gong)冷(leng)氣(qi)或(huo)暖(nuan)氣(qi),當(dang)室(shi)溫(wen)達(da)到(dao)溫(wen)控(kong)器(qi)設(she)定(ding)值(zhi)時(shi),溫(wen)控(kong)器(qi)令(ling)電(dian)動(dong)閥(fa)斷(duan)電(dian),複(fu)位(wei)彈(dan)簧(huang)使(shi)閥(fa)門(men)關(guan)閉(bi),從(cong)而(er)截(jie)斷(duan)進(jin)入(ru)風(feng)機(ji)盤(pan)管(guan)的(de)水(shui)流(liu),通(tong)過(guo)閥(fa)門(men)關(guan)閉(bi)和(he)開(kai)啟(qi),使(shi)室(shi)溫(wen)始(shi)終(zhong)保(bao)持(chi)在(zai)溫(wen)控(kong)設(she)定(ding)的(de)溫(wen)度(du)範(fan)圍(wei)內(nei)。
電動閥的驅動器與閥門采用螺紋連接方式,可在閥門安裝之後,再安裝驅動器。現場裝配,接線靈活、方(fang)便(bian)。驅(qu)動(dong)器(qi)之(zhi)平(ping)麵(mian)設(she)計(ji)可(ke)以(yi)貼(tie)近(jin)牆(qiang)麵(mian)安(an)裝(zhuang),占(zhan)用(yong)空(kong)間(jian)小(xiao),產(chan)品(pin)可(ke)靠(kao)耐(nai)用(yong),工(gong)作(zuo)噪(zao)音(yin)低(di),並(bing)能(neng)在(zai)隱(yin)蔽(bi)式(shi)風(feng)機(ji)盤(pan)管(guan)裝(zhuang)置(zhi)內(nei)常(chang)出(chu)現(xian)的(de)高(gao)溫(wen)高(gao)濕(shi)環(huan)境(jing)可(ke)靠(kao)工(gong)作(zuo)。
電動二通閥的作用
1、空kong氣qi壓ya差cha開kai關guan是shi用yong來lai檢jian測ce過guo濾lv網wang的de透tou氣qi情qing況kuang,過guo濾lv網wang越yue髒zang,透tou氣qi率lv越yue低di,其qi兩liang側ce的de壓ya力li差cha越yue大da。當dang壓ya力li差cha超chao過guo壓ya差cha開kai關guan的de設she定ding值zhi時shi,微wei動dong開kai關guan運yun作zuo,發fa出chu報bao警jing信xin號hao。
2、當盤管後的溫度低於某限值時,低溫保護壓差開關切斷送風機的電源,從而使新風風閥關閉,防止盤管內的水結冰,漲裂盤管。
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