發布時間:2026-04-21 13:03:23 人氣:271677 來源:
1.檢漏原理
wuluncaiyongnazhongjianloufangfa,bixulijietadejibenyuanli。xieloujiancefangfashejideneirongjiaoguang,jizhongfanyinglegezhongjiliangheceshijishu。duixuduojiancefangfadeyuanlidounengxiangxilijieshiburongyide。
2.靈敏度
檢jian漏lou方fang法fa的de靈ling敏min度du可ke以yi用yong該gai方fang法fa可ke檢jian的de最zui小xiao泄xie漏lou率lv來lai表biao示shi。選xuan擇ze撿jian漏lou方fang法fa時shi應ying考kao慮lv各ge種zhong方fang法fa的de靈ling敏min度du,即ji采cai用yong哪na種zhong方fang法fa可ke以yi檢jian測ce出chu哪na一yi級ji的de泄xie漏lou率lv。例li如ru,要yao檢jian測ce10-5cm3/s 的泄漏率時,采用靈敏度為10-2cm3/s的方法就毫無竟義。反之,檢測102cm3/s的泄漏率時,采用靈敏度為10-5cm3/s的方法,原理上也許可行,但實際上可能是不經濟的。
3.響應時間
buluncaiyongshenmefangfa,shuajiancechuxieloulv,zongyaohuafeiyidingdeshijian。xiangyingshijiandechangduankenenghuiyingxiangjianloudejingduhelingmindu。tongchang,yanchangjianceshijian,huitigaolingmindu,danshi,jianceshijianguochang,youyuhuanjingtiaojiandegaibian,kenengjiangdijiancejingdu。xiangyingshijianbaokuojianceyiqibenshendeyingdashijian,qitiliudongdezhihoushijianhegezhongzhunbeisuoxudeshijian。xuanzejianloufangfashi,bixukaolvdaozheyidian。
4.泄漏點的判斷
有(you)些(xie)檢(jian)漏(lou)方(fang)法(fa)僅(jin)僅(jin)可(ke)以(yi)判(pan)斷(duan)出(chu)係(xi)統(tong)有(you)無(wu)泄(xie)漏(lou),但(dan)無(wu)法(fa)確(que)定(ding)泄(xie)漏(lou)點(dian)在(zai)何(he)處(chu),有(you)的(de)檢(jian)漏(lou)方(fang)法(fa)不(bu)僅(jin)可(ke)以(yi)確(que)定(ding)泄(xie)漏(lou)點(dian),而(er)且(qie)可(ke)以(yi)確(que)定(ding)泄(xie)漏(lou)率(lv)的(de)大(da)小(xiao)。如(ru)果(guo)僅(jin)僅(jin)是(shi)為(wei)了(le)弄(nong)清(qing)裝(zhuang)置(zhi)是(shi)否(fou)合(he)格(ge)時(shi),可(ke)采(cai)用(yong)前(qian)一(yi)種(zhong)方(fang)法(fa);在進行維修或要找出泄漏原因時,就必須采用後一種方法,采用後一種方法有時也會出現漏檢的情況。
5.一致性
對有些檢漏方法來說,不管檢測人員是否熟練,所得到的檢測結果都基本相同;youxiefangfazeshineixinghewaixingshiyong,qijieguoquanranbutong。kenengdeqingkuangxia,yingcaiyongbuxuyaoshuliandezhuanmenjishujiunengzhengquejiancedefangfa。meizhongfangfadouyoubutongdejishuguanjian,butongdejianlourenyuanweibinengdechuyizhidejianloujieguo。
6.穩定性
xieloujianceshiyizhongjiliangheceshidezonghejishu。ruguoceshidedaodeshujubuwending,jiuhaowuyiyi。zhengquedexieloujiancebujinxuyaojianceyiqijuyouwendingxing,erqiexuyaojiancefangfabenshenyejuyoujiaohaodewendingxing。
7.可靠性
未wei檢jian測ce出chu泄xie漏lou並bing不bu等deng於yu就jiu是shi沒mei有you泄xie漏lou,對dui此ci應ying進jin行xing判pan斷duan。采cai用yong某mou種zhong方fang法fa進jin行xing檢jian漏lou時shi,應ying該gai了le解jie該gai方fang法fa是shi否fou可ke靠kao。檢jian漏lou結jie果guo的de可ke靠kao性xing與yu上shang麵mian介jie紹shao的de方fang法fa的de一yi致zhi性xing、穩定性等多種因素有關。
8.經濟性
經濟性是選擇檢漏方法的關鍵之一。單考慮檢漏方法本身的經濟性比較容易,但要從所需的檢漏設備、人員技術素養、檢漏結果等方麵綜合評價檢漏方法的經濟性則較困難。
例li如ru,塗tu肥fei皂zao液ye檢jian漏lou是shi一yi種zhong很hen經jing濟ji的de方fang法fa,但dan是shi,使shi用yong這zhe種zhong方fang法fa無wu法fa檢jian查zha出chu較jiao小xiao的de漏lou孔kong,因yin而er,無wu法fa用yong於yu對dui泄xie漏lou要yao求qiu較jiao高gao的de場chang合he。使shi用yong價jia格ge昂ang貴gui的de氦hai質zhi譜pu檢jian漏lou儀yi時shi,很hen快kuai就jiu能neng檢jian測ce出chu多duo處chu較jiao小xiao的de泄xie漏lou。因yin此ci,很hen難nan籠long統tong地di說shuo,上shang述shu兩liang種zhong方fang法fa中zhong,哪na種zhong經jing濟ji,哪na種zhong不bu經jing濟ji?
可見,選擇檢漏方法時,除了要考慮其經濟性外,還必須對靈敏度、響應時間、檢測要求等作全麵評價,使所選擇的檢漏方法既滿足檢漏要求,又經濟合理。