氣密性檢測裝置檢測方案設計詳解
氣密性檢測裝置采用的增壓比為 40：1的氣體增壓泵，其動(dong)力(li)來源(yuan)是空壓(ya)機的0.3－0.8MPa的壓(ya)縮空氣(qi)，額定輸出(chu)壓(ya)力(li)為12-32MPa。裝(zhuang)(zhuang)置上(shang)(shang)配(pei)有手動(dong)調(diao)壓(ya)閥，通過調(diao)整(zheng)增壓(ya)泵(beng)的驅動(dong)壓(ya)力(li)即可無級調(diao)整(zheng)增壓(ya)泵(beng)的輸出(chu)高壓(ya)氣(qi)體(ti)的壓(ya)力(li)，出(chu)口(kou)接有3米的高壓(ya)測(ce)壓(ya)軟管(guan)，用戶只需準備一排量(liang)在0.5-0.75m3/min的空壓(ya)機，通上(shang)(shang)氣(qi)管(guan)就(jiu)可進行CNG汽車改裝(zhuang)(zhuang)管(guan)路的氣(qi)密性檢測(ce)。
Air tightness detection device using the pressure ratio of the gas booster pump 40:1, its power source is the air compressor 0.30.8MPa compressed air pressure is 12-32MPa, rated output. Device is equipped with manual pressure regulating valve, by adjusting the pump to drive the output of high pressure gas pressure can stepless adjustment of the booster pump pressure, the outlet is connected with the high pressure hose 3 meters, users only need to prepare a 0.5-0.75m3/min discharge in air compressor, air tightness detection through the trachea can be CNG auto tuning pipe.
氣密性檢測(ce)可按測(ce)試(shi)手段分(fen)為(wei)兩大(da)類(lei)，一類(lei)為(wei)水(shui)沒式泄(xie)漏(lou)檢測(ce)法(fa)(又稱濕式浸水(shui)法(fa))，即在向工(gong)件(jian)腔內充進一定(ding)(ding)(ding)壓力的(de)氣體(ti)時，將其浸人水(shui)中或(huo)涂肥皂(zao)泡(pao)(pao)，根據目(mu)測(ce)肥皂(zao)泡(pao)(pao)或(huo)水(shui)中的(de)氣泡(pao)(pao)來判(pan)定(ding)(ding)(ding)工(gong)件(jian)是否有漏(lou)及(ji)泄(xie)漏(lou)的(de)程(cheng)度(du)。目(mu)前(qian)，這種方(fang)法(fa)在冰箱、空(kong)調的(de)密封管道以及(ji)箱體(ti)檢漏(lou)時仍普(pu)遍采用。這種方(fang)法(fa)測(ce)試(shi)效(xiao)率低(di)，受主(zhu)觀因(yin)素影響較大(da)，無法(fa)定(ding)(ding)(ding)量(liang)丈量(liang)，同時用這種方(fang)法(fa)測(ce)試(shi)后，還(huan)必須對工(gong)件(jian)進行干燥和防銹處(chu)理(li)。
Tightness test according to the testing methods are divided into two categories, one for the water not leak detection method (also known as wet immersion method), namely to workpiece cavity gas charged into a certain pressure, the immersion in water or soap bubble, according to visual soap bubble or bubbles in water to determine. If there is leakage and the leakage degree. At present, this method is still widely used in refrigerators, air conditioning and sealing pipeline leak detection when the box. This test method is low efficiency, greatly influenced by subjective factors, not quantitative measurement, testing and using this method, but must be dry and anti rust treatment on workpiece.
另一(yi)(yi)類為干(gan)(gan)式泄(xie)漏(lou)檢(jian)(jian)(jian)測(ce)(ce)法(fa)(fa)(fa)(fa)(fa)，即不再用浸水(shui)(shui)法(fa)(fa)(fa)(fa)(fa)，而(er)是(shi)向工(gong)(gong)件(jian)腔(qiang)內充進一(yi)(yi)定壓(ya)力的氣(qi)體，通(tong)過壓(ya)力傳感器(qi)的信(xin)號輸(shu)(shu)出(chu)來判定工(gong)(gong)件(jian)是(shi)否有泄(xie)漏(lou)，并可(ke)根據單(dan)位(wei)時(shi)間內壓(ya)力傳感器(qi)輸(shu)(shu)出(chu)的變化值來計算出(chu)其泄(xie)漏(lou)率。干(gan)(gan)式檢(jian)(jian)(jian)測(ce)(ce)法(fa)(fa)(fa)(fa)(fa)有液(ye)壓(ya)丈量(liang)(liang)法(fa)(fa)(fa)(fa)(fa)、流(liu)(liu)量(liang)(liang)檢(jian)(jian)(jian)漏(lou)法(fa)(fa)(fa)(fa)(fa)、壓(ya)差檢(jian)(jian)(jian)漏(lou)法(fa)(fa)(fa)(fa)(fa)、負壓(ya)丈量(liang)(liang)法(fa)(fa)(fa)(fa)(fa)、氦氣(qi)檢(jian)(jian)(jian)漏(lou)法(fa)(fa)(fa)(fa)(fa)等，其測(ce)(ce)試(shi)效率高，不受主觀因素影響，而(er)且測(ce)(ce)試(shi)后不需要對工(gong)(gong)件(jian)進行其他處(chu)(chu)理，克(ke)服了水(shui)(shui)沒法(fa)(fa)(fa)(fa)(fa)的缺點。同時(shi)，干(gan)(gan)式檢(jian)(jian)(jian)測(ce)(ce)法(fa)(fa)(fa)(fa)(fa)可(ke)定量(liang)(liang)評測(ce)(ce)工(gong)(gong)件(jian)的泄(xie)漏(lou)狀態，并可(ke)方便地納人零(ling)件(jian)的自動化加工(gong)(gong)線(xian)或流(liu)(liu)水(shui)(shui)線(xian)使用，不足之處(chu)(chu)是(shi)在通(tong)常(chang)情況(kuang)下無法(fa)(fa)(fa)(fa)(fa)確定發(fa)生泄(xie)漏(lou)的部位(wei)。
氣密性檢測裝置可以廣(guang)泛應用(yong)于各行業,可對各種有(you)氣(qi)密性(xing)檢測要求(qiu)的產品進行檢測試(shi)驗(汽車水箱、閥(fa)門(men)、管道、氣(qi)枕、游(you)泳圈、氣(qi)墊床(chuang)、安(an)全氣(qi)囊、密閉工作間、消(xiao)防器材、車輛(liang)內胎、蓄電池外殼、膠(jiao)管)。
相關文章：氣密性檢測裝置氣體互換工作流程
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2014-09-14
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