發布時間:2026-04-14 17:52:28 人氣:268262 來源:
1.檢漏原理
無wu論lun采cai用yong哪na種zhong檢jian漏lou方fang法fa,必bi須xu理li解jie它ta的de基ji本ben原yuan理li。泄xie漏lou檢jian測ce方fang法fa涉she及ji的de內nei容rong較jiao廣guang,集ji中zhong反fan映ying了le各ge種zhong計ji量liang和he測ce試shi技ji術shu。對dui許xu多duo檢jian測ce方fang法fa的de原yuan理li都dou能neng詳xiang細xi理li解jie是shi不bu容rong易yi的de。
2.靈敏度
jianloufangfadelingmindukeyiyonggaifangfakejiandezuixiaoxieloulvlaibiaoshi。xuanzejianloufangfashiyingkaolvgezhongfangfadelingmindu,jicaiyongnazhongfangfakeyijiancechunayijidexieloulv。liru,yaojiance10-5cm3/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
不bu論lun采cai用yong什shen麼me方fang法fa,耍shua檢jian測ce出chu泄xie漏lou率lv,總zong要yao花hua費fei一yi定ding的de時shi間jian。響xiang應ying時shi間jian的de長chang短duan可ke能neng會hui影ying響xiang檢jian漏lou的de精jing度du和he靈ling敏min度du。通tong常chang,延yan長chang檢jian測ce時shi間jian,會hui提ti高gao靈ling敏min度du,但dan是shi,檢jian測ce時shi間jian過guo長chang,由you於yu環huan境jing條tiao件jian的de改gai變bian,可ke能neng降jiang低di檢jian測ce精jing度du。響xiang應ying時shi間jian包bao括kuo檢jian測ce儀yi器qi本ben身shen的de應ying答da時shi間jian,氣qi體ti流liu動dong的de滯zhi後hou時shi間jian和he各ge種zhong準zhun備bei所suo需xu的de時shi間jian。選xuan擇ze檢jian漏lou方fang法fa時shi,必bi須xu考kao慮lv到dao這zhe一yi點dian。
4.泄漏點的判斷
youxiejianloufangfajinjinkeyipanduanchuxitongyouwuxielou,danwufaquedingxieloudianzaihechu,youdejianloufangfabujinkeyiquedingxieloudian,erqiekeyiquedingxieloulvdedaxiao。ruguojinjinshiweilenongqingzhuangzhishifouhegeshi,kecaiyongqianyizhongfangfa;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。
liru,tufeizaoyejianloushiyizhonghenjingjidefangfa,danshi,shiyongzhezhongfangfawufajianzhachujiaoxiaodeloukong,yiner,wufayongyuduixielouyaoqiujiaogaodechanghe。shiyongjiageangguidehaizhipujianlouyishi,henkuaijiunengjiancechuduochujiaoxiaodexielou。yinci,hennanlongtongdishuo,shangshuliangzhongfangfazhong,nazhongjingji,nazhongbujingji?
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。