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    夏季機房溫度對電梯正常運行的影響
    發布時間:2021-10-05 11:12:19      點擊次數:481

    1.機(ji)房溫度升高(gao)的(de)原因

    1.1機房本身的建(jian)筑(zhu)結構位置

    電梯機房大都在建筑(zhu)物樓(lou)頂(ding)層,有的機房在建筑(zhu)物樓(lou)頂(ding)是(shi)一個凸起專用(yong)的房間,機房的屋頂(ding)和四面墻(qiang)都是(shi)外圍護結(jie)構(gou)。外圍護結(jie)構(gou)也就是(shi)我們俗話(hua)所(suo)說的外墻(qiang),它的溫度與溫室溫度緊密聯系,從(cong)而影響(xiang)室內(nei)的溫度。

    在(zai)夏(xia)季高(gao)溫(wen)天氣(qi),室(shi)外溫(wen)度高(gao),外圍(wei)護(hu)結(jie)構(gou)溫(wen)度也就高(gao),從而導致機房(fang)(fang)室(shi)內(nei)溫(wen)度的升高(gao)。對一個房(fang)(fang)間而言,外圍(wei)護(hu)結(jie)構(gou)所占(zhan)整個維(wei)護(hu)結(jie)構(gou)的比例越(yue)大,室(shi)內(nei)溫(wen)度受(shou)(shou)室(shi)外溫(wen)度的影(ying)響(xiang)越(yue)大,所以機房(fang)(fang)的位置決定(ding)了機房(fang)(fang)在(zai)夏(xia)季是受(shou)(shou)環境溫(wen)度和太陽照(zhao)射影(ying)響(xiang)比較(jiao)大的房(fang)(fang)間。

    1.2電氣系統散發(fa)的(de)熱量

    機房(fang)電(dian)(dian)氣系(xi)統的主要發熱部件有變(bian)頻器、制動(dong)電(dian)(dian)阻(zu)、電(dian)(dian)動(dong)機。其中變(bian)頻器和電(dian)(dian)動(dong)機是(shi)由于本身效率原(yuan)因,消(xiao)耗一(yi)部分(fen)(fen)電(dian)(dian)能(neng),以熱量(liang)的形式釋(shi)放出(chu)來;制動(dong)電(dian)(dian)阻(zu)是(shi)把(ba)電(dian)(dian)梯再生發電(dian)(dian)的電(dian)(dian)能(neng)消(xiao)耗掉,以熱量(liang)的形式釋(shi)放出(chu)來。這(zhe)兩部分(fen)(fen)熱量(liang)都(dou)散發到機房(fang)內導致室(shi)溫的升高。

    (1)變頻器

    變(bian)(bian)頻(pin)(pin)器(qi)由主(zhu)回路和控制回路組成(cheng)。主(zhu)回路是給電動(dong)機提供調壓調頻(pin)(pin)電源(yuan)的(de)(de)(de)電力(li)交換(huan)部(bu)分,由整流器(qi)、平滑回路、逆變(bian)(bian)器(qi)三(san)部(bu)分組成(cheng)。其(qi)中(zhong)(zhong)逆變(bian)(bian)器(qi)中(zhong)(zhong)的(de)(de)(de)逆變(bian)(bian)元件(jian)絕緣柵雙極(ji)晶(jing)體管(IGBT)是變(bian)(bian)頻(pin)(pin)器(qi)最主(zhu)要(yao)(yao)的(de)(de)(de)發(fa)熱(re)源(yuan)。IGBT的(de)(de)(de)發(fa)熱(re)主(zhu)要(yao)(yao)集中(zhong)(zhong)在開和關的(de)(de)(de)瞬(shun)間。因此開關頻(pin)(pin)率(lv)高時變(bian)(bian)頻(pin)(pin)器(qi)的(de)(de)(de)發(fa)熱(re)量就變(bian)(bian)大(da)。而電梯(ti)用的(de)(de)(de)變(bian)(bian)頻(pin)(pin)器(qi)需要(yao)(yao)頻(pin)(pin)繁的(de)(de)(de)啟動(dong),從而釋(shi)放大(da)量的(de)(de)(de)熱(re)量。

    (2)制動電阻

    制(zhi)(zhi)動電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)本身就是(shi)(shi)消(xiao)(xiao)(xiao)耗能量轉(zhuan)(zhuan)化成熱量的(de),例如:電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)空載上行(xing)時,對重(zhong)比轎廂重(zhong),主機(ji)轉(zhuan)(zhuan)子轉(zhuan)(zhuan)動,切(qie)割定(ding)子線圈(quan)磁力線運(yun)動,產(chan)生(sheng)自(zi)發電(dian)(dian)(dian)(dian)(dian)(dian),使電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)由電(dian)(dian)(dian)(dian)(dian)(dian)動狀(zhuang)(zhuang)態(tai)轉(zhuan)(zhuan)變為(wei)(wei)發電(dian)(dian)(dian)(dian)(dian)(dian)狀(zhuang)(zhuang)態(tai),而這種再生(sheng)能量會通(tong)過變頻器的(de)制(zhi)(zhi)動單元,最終由制(zhi)(zhi)動電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)以熱能的(de)方式消(xiao)(xiao)(xiao)耗掉。在工(gong)作中(zhong)曾經有單位做過一(yi)(yi)個試驗,兩部(bu)(bu)(bu)運(yun)行(xing)頻率一(yi)(yi)樣的(de)電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti),其中(zhong)一(yi)(yi)部(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)采(cai)用(yong)外(wai)部(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)作為(wei)(wei)動力,電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)再生(sheng)發電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)能由制(zhi)(zhi)動電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)消(xiao)(xiao)(xiao)耗掉,另(ling)外(wai)一(yi)(yi)部(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)采(cai)用(yong)外(wai)部(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)和節電(dian)(dian)(dian)(dian)(dian)(dian)回饋裝置(zhi)(zhi)為(wei)(wei)動力,節電(dian)(dian)(dian)(dian)(dian)(dian)回饋裝置(zhi)(zhi)的(de)能量來(lai)自(zi)電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)的(de)再生(sheng)發電(dian)(dian)(dian)(dian)(dian)(dian),在運(yun)行(xing)一(yi)(yi)段時間后,外(wai)部(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)(dian)能消(xiao)(xiao)(xiao)耗比另(ling)外(wai)一(yi)(yi)部(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)(dian)能消(xiao)(xiao)(xiao)耗少35%。可見制(zhi)(zhi)動電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)的(de)發熱量是(shi)(shi)多么的(de)大(da),約是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)電(dian)(dian)(dian)(dian)(dian)(dian)能消(xiao)(xiao)(xiao)耗的(de)1/3。

    (3)電動機

    電(dian)動(dong)(dong)機運(yun)行(xing)本身有一(yi)定的電(dian)能消(xiao)耗。根據電(dian)動(dong)(dong)機的熱量(liang)公式Q=I2Rt,電(dian)動(dong)(dong)機運(yun)行(xing)中釋(shi)放(fang)的熱量(liang)與電(dian)流(liu)的平方成正比(bi)。而電(dian)動(dong)(dong)機在啟(qi)動(dong)(dong)和制動(dong)(dong)過程中電(dian)流(liu)最大,電(dian)梯作為垂(chui)直(zhi)運(yun)輸的交通工具,又要(yao)頻繁地啟(qi)動(dong)(dong)和制動(dong)(dong),會產生大量(liang)的熱量(liang)。

    2.機房高(gao)溫(wen)對電梯正常運行的影響(xiang)

    2.1對電氣(qi)控制系統的影響

    (1)高溫易引起(qi)微機(ji)控制板程(cheng)序(xu)異常

    微機(ji)控(kong)制(zhi)板(ban)或(huo)PLC上的電(dian)子(zi)器件通(tong)過電(dian)壓、電(dian)流(liu)大小(xiao)比(bi)較進(jin)行(xing)邏(luo)輯(ji)控(kong)制(zhi),響(xiang)應執(zhi)行(xing)外部指(zhi)令。由于(yu)電(dian)子(zi)器件的材料溫(wen)度特性,在高于(yu)允許溫(wen)度下,電(dian)子(zi)器件邏(luo)輯(ji)判斷會(hui)出錯,微機(ji)控(kong)制(zhi)板(ban)不(bu)穩定,電(dian)梯容易(yi)(yi)發生故障,影響(xiang)正(zheng)(zheng)常運行(xing)(例如(ru)電(dian)梯正(zheng)(zheng)常運行(xing)中突然停梯關人,電(dian)梯運行(xing)到(dao)門(men)區不(bu)開門(men)或(huo)不(bu)關門(men),電(dian)梯運行(xing)到(dao)門(men)區不(bu)能換速(su)等(deng)),同時維修起來(lai)也不(bu)易(yi)(yi)發現故障點。

    (2)高溫易損(sun)壞電(dian)子(zi)元器件

    (a)變頻(pin)器

    變頻(pin)器的(de)故障率隨溫度的(de)升高而成指數(shu)的(de)上升,使用壽(shou)命隨溫度的(de)升高而成指數(shu)的(de)下降,環(huan)境溫度升高10℃,變頻(pin)器使用壽(shou)命減半。

    當(dang)環(huan)境溫度超(chao)過允許溫度時(shi),將(jiang)使(shi)變(bian)頻(pin)器(qi)(qi)(qi)(qi)逆變(bian)電(dian)路(lu)中逆變(bian)器(qi)(qi)(qi)(qi)件的(de)參數開通(tong)時(shi)間和關(guan)斷時(shi)間發生變(bian)化,導致在交替過程中,一(yi)個器(qi)(qi)(qi)(qi)件已經導通(tong),而另一(yi)個器(qi)(qi)(qi)(qi)件卻未來得及關(guan)斷,引起同(tong)一(yi)橋(qiao)臂的(de)上、下(xia)兩個器(qi)(qi)(qi)(qi)件間的(de)“直通(tong)”,使(shi)該部分處(chu)于(yu)瞬間短路(lu)狀態,逆變(bian)器(qi)(qi)(qi)(qi)瞬間立即被損(sun)壞(huai),變(bian)頻(pin)器(qi)(qi)(qi)(qi)不(bu)能(neng)正(zheng)常工(gong)作。同(tong)時(shi)溫度升高變(bian)頻(pin)器(qi)(qi)(qi)(qi)的(de)絕緣性能(neng)就會大(da)大(da)降低(di),很(hen)容(rong)易導致變(bian)頻(pin)器(qi)(qi)(qi)(qi)損(sun)壞(huai),造(zao)成電(dian)梯故(gu)障。

    (b)制動電阻

    當環境(jing)溫度過(guo)(guo)(guo)高時(shi),很(hen)容(rong)易(yi)使制(zhi)動電阻(zu)散熱時(shi)間過(guo)(guo)(guo)長,如果電梯運行頻繁,制(zhi)動電阻(zu)的熱量多次累積,最終導(dao)致制(zhi)動電阻(zu)溫度過(guo)(guo)(guo)高而損壞,甚至造成火災等安全事(shi)故。

    (c)其他電(dian)子元器件

    接觸器(qi)、繼電(dian)(dian)器(qi)、變壓(ya)器(qi)這些(xie)電(dian)(dian)子元(yuan)(yuan)器(qi)件(jian)在工作(zuo)時(shi),由于(yu)電(dian)(dian)流(liu)(liu)通過導體和線圈而產生(sheng)(sheng)電(dian)(dian)阻損(sun)耗(hao)(hao);交流(liu)(liu)電(dian)(dian)路中(zhong)(zhong)(zhong)由于(yu)交變電(dian)(dian)磁的作(zuo)用(yong)(yong),在磁體內產生(sheng)(sheng)渦流(liu)(liu)及磁滯(zhi)(zhi)損(sun)耗(hao)(hao)。所有這些(xie)損(sun)耗(hao)(hao),幾乎全部(bu)都轉(zhuan)變為熱能,這些(xie)熱能一(yi)部(bu)分散失到周圍的介質(zhi)中(zhong)(zhong)(zhong),一(yi)部(bu)分則滯(zhi)(zhi)留在電(dian)(dian)器(qi)中(zhong)(zhong)(zhong),使(shi)電(dian)(dian)器(qi)溫(wen)度升高(gao)。此(ci)時(shi),若環境溫(wen)度過高(gao),則各電(dian)(dian)子元(yuan)(yuan)器(qi)件(jian)散熱狀況就差(cha),一(yi)是會(hui)使(shi)電(dian)(dian)子元(yuan)(yuan)器(qi)件(jian)的可靠性大(da)大(da)降低;二是會(hui)降低電(dian)(dian)子元(yuan)(yuan)器(qi)件(jian)的使(shi)用(yong)(yong)壽命,甚至損(sun)壞電(dian)(dian)子元(yuan)(yuan)器(qi)件(jian)。統(tong)計資料表(biao)明電(dian)(dian)子元(yuan)(yuan)器(qi)件(jian)溫(wen)度每升高(gao)2℃,可靠性下(xia)降10%,溫(wen)升50℃時(shi)的壽命只有溫(wen)升25℃時(shi)的

    當環境溫(wen)(wen)度(du)超過機房(fang)的允許溫(wen)(wen)度(du)時,會(hui)嚴重影(ying)響曳引電(dian)機的散熱,由于電(dian)機的頻繁啟、制動(dong),電(dian)機本身(shen)會(hui)釋放大量(liang)的熱量(liang),而機房(fang)的高溫(wen)(wen)又不能及時排除,電(dian)機持續在高溫(wen)(wen)環境運(yun)行(xing),很容易燒壞線圈,損壞電(dian)機。

    2.2對機械(xie)系統的影(ying)響

    電梯機(ji)(ji)房的機(ji)(ji)械(xie)系統主(zhu)要是(shi)曳(ye)(ye)引機(ji)(ji),曳(ye)(ye)引機(ji)(ji)通常由電動(dong)機(ji)(ji)、制動(dong)器、減速箱、曳(ye)(ye)引輪、導向輪、機(ji)(ji)架、盤車(che)手輪等(deng)組(zu)成。

    (1)對曳引電機(ji)的影響(xiang)

    當(dang)環(huan)境溫(wen)(wen)(wen)度(du)(du)(du)超過機(ji)(ji)(ji)(ji)房的(de)(de)(de)(de)(de)(de)(de)允許溫(wen)(wen)(wen)度(du)(du)(du)時,會嚴重(zhong)影響曳引電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)散熱(re)(re)(re)(re),由于(yu)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)頻繁啟(qi)、制(zhi)動(dong)(dong)(dong)(dong),電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)本身會釋放大(da)量的(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)量,而機(ji)(ji)(ji)(ji)房的(de)(de)(de)(de)(de)(de)(de)高(gao)(gao)溫(wen)(wen)(wen)又不(bu)能及時排除,電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)持續在高(gao)(gao)溫(wen)(wen)(wen)環(huan)境運行(xing),很容易燒(shao)壞線圈,損壞電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)。雖然(ran)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)結構(gou)設(she)計(ji)方(fang)面(mian),在加(jia)強(qiang)(qiang)定子(zi)鐵(tie)芯(xin)的(de)(de)(de)(de)(de)(de)(de)散熱(re)(re)(re)(re)上(shang)做了周密考慮(lv)。比如(ru):有(you)些產品(pin)設(she)計(ji)成端(duan)蓋支(zhi)撐方(fang)式,省去傳統的(de)(de)(de)(de)(de)(de)(de)機(ji)(ji)(ji)(ji)座,使(shi)(shi)得(de)鐵(tie)芯(xin)成為開啟(qi)式結構(gou),增(zeng)強(qiang)(qiang)冷卻(que)(que)效果;加(jia)強(qiang)(qiang)定子(zi)和(he)轉子(zi)鐵(tie)芯(xin)圓周通風(feng)道的(de)(de)(de)(de)(de)(de)(de)布置;加(jia)大(da)風(feng)罩(zhao)孔通風(feng)量設(she)計(ji)等,但這種結構(gou)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)使(shi)(shi)用較少(shao)。大(da)部(bu)分采取附裝冷卻(que)(que)風(feng)機(ji)(ji)(ji)(ji),由設(she)在定子(zi)鐵(tie)芯(xin)表(biao)面(mian)的(de)(de)(de)(de)(de)(de)(de)熱(re)(re)(re)(re)敏(min)開關控(kong)制(zhi)。當(dang)鐵(tie)芯(xin)表(biao)面(mian)溫(wen)(wen)(wen)度(du)(du)(du)達(da)到60℃左右時,熱(re)(re)(re)(re)敏(min)開關動(dong)(dong)(dong)(dong)作(zuo),接通風(feng)機(ji)(ji)(ji)(ji)對(dui)曳引電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)強(qiang)(qiang)制(zhi)通風(feng)冷卻(que)(que)。強(qiang)(qiang)制(zhi)冷卻(que)(que)在機(ji)(ji)(ji)(ji)房高(gao)(gao)溫(wen)(wen)(wen)的(de)(de)(de)(de)(de)(de)(de)情況下,冷卻(que)(que)效果并不(bu)明顯(xian)。考慮(lv)到強(qiang)(qiang)制(zhi)制(zhi)冷失敗(bai)不(bu)能降溫(wen)(wen)(wen)時,會使(shi)(shi)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)溫(wen)(wen)(wen)度(du)(du)(du)繼續升(sheng)高(gao)(gao),某些電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)產品(pin)在每相繞組(zu)均埋(mai)有(you)熱(re)(re)(re)(re)敏(min)電(dian)(dian)(dian)阻(zu)。當(dang)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)溫(wen)(wen)(wen)度(du)(du)(du)升(sheng)高(gao)(gao)到155℃時,內部(bu)熱(re)(re)(re)(re)敏(min)電(dian)(dian)(dian)阻(zu)阻(zu)值急劇(ju)增(zeng)大(da),控(kong)制(zhi)外(wai)電(dian)(dian)(dian)路熱(re)(re)(re)(re)保護繼電(dian)(dian)(dian)器動(dong)(dong)(dong)(dong)作(zuo),通過控(kong)制(zhi)電(dian)(dian)(dian)路迫使(shi)(shi)電(dian)(dian)(dian)梯在就近層站換速停(ting)靠(kao)開門,直到電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)冷卻(que)(que)后,方(fang)可(ke)重(zhong)新(xin)啟(qi)動(dong)(dong)(dong)(dong)運行(xing)。雖然(ran)這種方(fang)法能起到保護電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)作(zuo)用,但夏季高(gao)(gao)溫(wen)(wen)(wen)天氣時間(jian)較長,頻繁的(de)(de)(de)(de)(de)(de)(de)出現停(ting)梯保護,嚴重(zhong)影響了電(dian)(dian)(dian)梯的(de)(de)(de)(de)(de)(de)(de)正常運行(xing)及使(shi)(shi)用。

    (2)對減速箱(xiang)的影響

    減(jian)(jian)(jian)速箱由蝸(gua)(gua)輪(lun)(lun)(lun)(lun)、蝸(gua)(gua)桿(gan)(gan)(gan)(gan)組成(cheng)(cheng),蝸(gua)(gua)桿(gan)(gan)(gan)(gan)一般選用(yong)硬(ying)(ying)度高(gao)(gao)、剛(gang)性(xing)好的(de)(de)(de)材(cai)料,目前(qian)大(da)部(bu)分采用(yong)鎳鉻合(he)(he)(he)金鋼(gang)或(huo)硅錳類合(he)(he)(he)金鋼(gang),也有(you)用(yong)含碳(tan)量0.4%-0.55%的(de)(de)(de)碳(tan)素鋼(gang)鍛造的(de)(de)(de),蝸(gua)(gua)桿(gan)(gan)(gan)(gan)表面須經淬火(huo)或(huo)滲碳(tan)等(deng)硬(ying)(ying)化(hua)(hua)處理。蝸(gua)(gua)輪(lun)(lun)(lun)(lun)輪(lun)(lun)(lun)(lun)緣選用(yong)低摩(mo)擦(ca)(ca)系(xi)數的(de)(de)(de)磷青(qing)銅(tong)、錫青(qing)銅(tong)或(huo)銅(tong)錫鎳合(he)(he)(he)金經機(ji)加(jia)(jia)(jia)工而(er)成(cheng)(cheng)。由于各種(zhong)材(cai)料的(de)(de)(de)熱膨(peng)脹(zhang)系(xi)數不同,而(er)且蝸(gua)(gua)輪(lun)(lun)(lun)(lun)的(de)(de)(de)熱膨(peng)脹(zhang)系(xi)數大(da)約是蝸(gua)(gua)桿(gan)(gan)(gan)(gan)熱膨(peng)脹(zhang)系(xi)數的(de)(de)(de)1/2,當機(ji)房溫(wen)度高(gao)(gao)于40℃時,空氣中的(de)(de)(de)熱量與減(jian)(jian)(jian)速箱內(nei)各零部(bu)件旋轉、摩(mo)擦(ca)(ca)產(chan)生的(de)(de)(de)熱量,兩者加(jia)(jia)(jia)在一起,減(jian)(jian)(jian)速箱內(nei)的(de)(de)(de)溫(wen)度就會(hui)(hui)(hui)(hui)更高(gao)(gao),持續(xu)的(de)(de)(de)高(gao)(gao)溫(wen)則引(yin)起零部(bu)件的(de)(de)(de)熱膨(peng)脹(zhang),從而(er)破(po)壞減(jian)(jian)(jian)速箱內(nei)蝸(gua)(gua)輪(lun)(lun)(lun)(lun)蝸(gua)(gua)桿(gan)(gan)(gan)(gan)的(de)(de)(de)制作(zuo)精(jing)度,使渦輪(lun)(lun)(lun)(lun)軸(zhou)(zhou)和蝸(gua)(gua)桿(gan)(gan)(gan)(gan)軸(zhou)(zhou)的(de)(de)(de)軸(zhou)(zhou)向游隙減(jian)(jian)(jian)小,嚙合(he)(he)(he)面增大(da),使摩(mo)擦(ca)(ca)面的(de)(de)(de)摩(mo)擦(ca)(ca)力(li)增大(da),磨(mo)損加(jia)(jia)(jia)速,嚴重時會(hui)(hui)(hui)(hui)影響(xiang)電梯(ti)運行的(de)(de)(de)舒適性(xing),同時還(huan)會(hui)(hui)(hui)(hui)產(chan)生異(yi)(yi)響(xiang),損壞蝸(gua)(gua)輪(lun)(lun)(lun)(lun)蝸(gua)(gua)桿(gan)(gan)(gan)(gan)(例(li)如:乘坐電梯(ti)時會(hui)(hui)(hui)(hui)聽(ting)到電梯(ti)機(ji)房有(you)轟隆隆的(de)(de)(de)異(yi)(yi)聲,轎廂內(nei)也會(hui)(hui)(hui)(hui)有(you)異(yi)(yi)常震動等(deng))。同時,減(jian)(jian)(jian)速箱內(nei)持續(xu)的(de)(de)(de)高(gao)(gao)溫(wen)也會(hui)(hui)(hui)(hui)使潤(run)滑(hua)(hua)油粘度下降(jiang),不利于潤(run)滑(hua)(hua)油膜的(de)(de)(de)生成(cheng)(cheng),還(huan)會(hui)(hui)(hui)(hui)加(jia)(jia)(jia)速潤(run)滑(hua)(hua)油的(de)(de)(de)氧化(hua)(hua),影響(xiang)蝸(gua)(gua)輪(lun)(lun)(lun)(lun)蝸(gua)(gua)桿(gan)(gan)(gan)(gan)的(de)(de)(de)潤(run)滑(hua)(hua)效果,使得蝸(gua)(gua)輪(lun)(lun)(lun)(lun)蝸(gua)(gua)桿(gan)(gan)(gan)(gan)磨(mo)損加(jia)(jia)(jia)大(da)。

    3.如何控制機房溫(wen)度

    3.1建筑結(jie)構方面

    電(dian)梯機(ji)房做(zuo)維護(hu)結(jie)構(gou)保(bao)(bao)溫處(chu)理,降低夏季高溫天氣中室外溫度對(dui)室內設(she)備的影響,同時不能(neng)因為是設(she)備房間而忽略了維護(hu)結(jie)構(gou)的保(bao)(bao)溫,減小維護(hu)結(jie)構(gou)的厚度。

    3.2安(an)裝通風降溫設備

    在自然通風(feng)狀(zhuang)態下,安裝通風(feng)設(she)備,以(yi)滿足機(ji)房溫度(du)的要求,就要安裝空調(diao)。在裝設(she)通風(feng)設(she)備(如排風(feng)扇)時,應(ying)與(yu)機(ji)房的通風(feng)口(如百葉窗(chuang))對應(ying),使得(de)空氣(qi)產(chan)生對流,從(cong)而起到改(gai)善機(ji)房環境溫度(du)的目的。

    3.3使用(yong)單位、維保單位應安(an)排(pai)專職人員加強管理

    維保單位(wei)應定期(qi)檢查(cha)降溫設備(bei)是否正常工(gong)作,定期(qi)對發(fa)熱源(如變頻(pin)器、制動電阻、電動機(ji))運(yun)(yun)行(xing)情況進行(xing)認真檢查(cha)。對于有多(duo)臺(tai)電梯(ti)的使(shi)用單位(wei),在(zai)夏(xia)季高(gao)溫天(tian)氣(qi),應交替運(yun)(yun)行(xing),避免為了乘坐方(fang)便或其他原因只使(shi)用某一臺(tai)電梯(ti),增(zeng)加電梯(ti)在(zai)高(gao)溫天(tian)氣(qi)的運(yun)(yun)行(xing)負擔(dan)。另外,使(shi)用單位(wei)應給每個電梯(ti)機(ji)房配備(bei)滅火器。

    4.結論

    電(dian)梯(ti)控制(zhi)系統智(zhi)能化程(cheng)度的(de)(de)(de)不(bu)斷提高(gao)并不(bu)能完全消除(chu)電(dian)梯(ti)故障,電(dian)梯(ti)在使用中的(de)(de)(de)逐年老化導致故障頻(pin)發(fa)的(de)(de)(de)趨勢不(bu)會改變。但通過對電(dian)梯(ti)機房(fang)的(de)(de)(de)建筑結構、電(dian)氣(qi)控制(zhi)系統、機械(xie)系統的(de)(de)(de)討論分析,采取有(you)針對性(xing)的(de)(de)(de)措施對各個環節有(you)效控制(zhi),可以保(bao)證(zheng)夏(xia)季(ji)高(gao)溫天(tian)氣(qi)電(dian)梯(ti)的(de)(de)(de)機房(fang)溫度在正常的(de)(de)(de)范圍之(zhi)內(nei),最終消除(chu)或減(jian)少因高(gao)溫引(yin)發(fa)的(de)(de)(de)各種故障,保(bao)障電(dian)梯(ti)在一(yi)個安全、穩(wen)定、可靠的(de)(de)(de)環境下(xia)運行,更好的(de)(de)(de)為用戶(hu)服(fu)務。


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