TW527487B - A device using airtight membrane, vacuum and tracer for leak detection - Google Patents

A device using airtight membrane, vacuum and tracer for leak detection Download PDF

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Publication number
TW527487B
TW527487B TW91118144A TW91118144A TW527487B TW 527487 B TW527487 B TW 527487B TW 91118144 A TW91118144 A TW 91118144A TW 91118144 A TW91118144 A TW 91118144A TW 527487 B TW527487 B TW 527487B
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Taiwan
Prior art keywords
leak detection
tracer
vacuum
gas
air
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TW91118144A
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Chinese (zh)
Inventor
Ming-Chin Kuo
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Ming-Chin Kuo
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Abstract

This work provides a device using airtight membrane, vacuum and tracer for leak detection, especially for storage tanks of liquefied natural gas. The device employs an airtight membrane on the floor and wall inside the tank; injects gas tracer into the annulus of tank; and applies vacuum to the airtight membrane to obtain gas samples. By analyzing if tracer appears in the gas samples, one can tell if leakage occurs. This device utilizing an airtight membrane is especially effective when the shape of welding is three dimensional and the area for leak detection is large.

Description

、發明說日--- * <發日月# 具空禾蹤、、糸有關於一種不規則形狀立體焊道之不透氣布 規則形狀列漏結構’尤其是指一種可適用於凸出平面之不 焊道之不立,焊道,而更具使用方便性的不規則形狀立體 按,遷氣布真空示蹤測漏結構創新應用者。 其皆係利用I常可見到各種液化天然氣等之大型儲存槽, 於便用上爭許多板材予以焊接組設而成’而該大型儲存槽 縮、焊設不完全等因素產生縫隙,使得其所容;【‘液= 然氣等外漏情況發生。 ” 於是,業者皆會利用一種真空吸盤測漏箱裝置予以檢 查偵測;其中,該裝置即如第十-圖所示,係於一測漏箱 (4)上端面設有透視窗(41),於其下端面係呈一透 空狀,旅於周緣處設有氣密塾(4 2 ),而該測漏箱(4 )於側邊則另以連接管(4 3 )連接至真空抽氣泵浦〔圖 中未示〕 將待測處之表面銹污、油垢等 劑或肥皂水......等,再將該測 3 )之待測處,以其氣密墊( 緣,利用真空抽氣泵浦透過連 )内之氣體抽出,使得測漏箱 腿/ H g以上,經由測漏箱( )向内之待測處觀察,若該待 視窗(4 1 )内觀測出該處會 該裝置於使用時,係先 清除完畢,旅予以塗上發泡 潙箱(4)罩蓋於儲存槽( 4 2 )緊密貼附在待測處周 接管(4 3 )將測漏箱(4 (4)内之真空度達450 4)上端面之透視窗(41 測處有縫隙時,則即可由透 有氣泡產生。"Invention day" --- * < 发 日月 # 空空 禾 Track, 糸 There is an irregularly shaped airtight cloth with a regular shape of the irregular shape of the three-dimensional welding bead, the regular shape of the leakage structure 'especially refers to a type that can be applied to the convex plane Innovative users of the welded structure, the welded bead, and the irregularly shaped three-dimensional button with more convenient use, and the gas-travel cloth vacuum trace leak detection structure. They are all made up of large storage tanks that can often see various liquefied natural gas, etc., and they are assembled by welding many plates, and the large storage tanks shrink and incomplete welding settings create gaps, making them Content; ['Liquid = Natural gas, etc. leaks occur. Therefore, the industry will use a vacuum chuck leak detection box device for inspection and detection; among them, the device is attached to a leak detection box (4) with a see-through window (41) as shown in the tenth figure. An air-tight seal (4 2) is provided at the periphery, and the leak detection box (4) is connected to a vacuum pump by a connecting pipe (4 3) on the side. Air pump (not shown in the figure) Put the surface rust, grease, etc. or soapy water on the surface to be tested, and then test the area 3) with its airtight pad (edge , Use the vacuum pump to pump through the gas inside, so that the leak detection tank leg / H g or more, through the leak detection box () inward to the place to be measured, if the waiting window (4 1) is observed When the device is in use, it is cleaned first, and the briquette is coated with a foam box (4), and the storage tank (4 2) is tightly attached to the circumference of the place to be tested. The pipe (4 3) is used for leak detection. When the vacuum degree in the box (4 (4) reaches 450 4), when there is a gap at the upper end of the see-through window (41), it can be generated by seeping air bubbles.

$ 5頁 527487 五、發明說明(2) 然,上述真空吸盤測箱裝置雖可達到檢查、偵測出板 材焊道是否有縫隙處之預期功效,但也在其實際實施使用 中發現,該裝置之測漏箱係為一硬性固定形狀之材質,而 該構成儲存槽之各板材卻係呈一中間略為向下凹陷狀,且 於四塊板材之接角度亦呈一向上凸起狀,需另行利用一接 合塊予以罩塊焊設〔如第七〜十圖所示〕,使得於儲存槽 内具有許多凹凸不平之焊道,另於儲存槽側緣處亦同樣具 有許多高低不平之銜接處,造成該測漏箱並無法使其四周 與待測處呈緊密貼合狀,導致其無法進行切實之測試,並 不能獲得精準之測試結果。 緣是,發明人有鑑於此,秉持多年相關行業實際之設 計與製造經驗,針對習用之結構及缺失予以研究改良,提 供一種創新的不規則形狀立體焊道之不透氣布真空示蹤測 漏結構’以期完全改善習用之所有缺失者。 本發明之主要目的在於提供一種不規則形狀立體焊道 之不透氣布真空示蹤測漏結構,其主要係設有一適當大小 之不,氣布,於該不透氣布上設有一連結氣閥,以可利用 、'··苢連接至真空抽氣栗滤,將该不透氣布四週以黏著辦 :黏設於待測處四胃’並於儲存槽之灸層中注入氣體示蹤 =可利用真空抽氣泵浦向外抽出不透氣布罩蓋範圍内 广氣’同時藉由檢測該氣體示蹤劑出現與否,即能 出待測焊道是否有縫隙;藉&,而成為—種可適用於各種 Z體:ί不平之待測焊道’以更具一實用性的不規則形 體知道之不透氣布真空示蹤測漏結構者。$ 5Page 527487 V. Description of the invention (2) Of course, although the above-mentioned vacuum chuck measuring box device can achieve the expected effect of checking and detecting whether there are gaps in the plate bead, but it has also been found in its actual implementation that the device The leak detection box is made of a rigid fixed shape, but the plates constituting the storage tank are slightly recessed in the middle, and the angles of the four plates are also raised upwards. A joint block is used for welding the cover block [as shown in the seventh to tenth figures], so that there are many uneven grooves in the storage tank, and there are also many uneven joints at the side edge of the storage tank. As a result, the leak detection box cannot closely fit the surrounding area with the place to be tested, which makes it impossible to perform a practical test and cannot obtain accurate test results. The reason is that the inventors have taken this into consideration, and based on many years of practical design and manufacturing experience in related industries, research and improve the conventional structure and defects, and provide an innovative irregularly shaped three-dimensional weld bead with airtight cloth vacuum trace leak detection structure. 'In order to completely improve all those who are missing. The main object of the present invention is to provide a vacuum-tracing leak detection structure of an air-impermeable cloth with an irregularly shaped three-dimensional weld bead, which is mainly provided with a properly-sized air-impermeable cloth, and an air valve is provided on the air-impermeable cloth. Connect it to the vacuum pump with an available, '...', connect the air-impermeable cloth with adhesive around it: glue it to the stomach of the place to be measured 'and inject gas into the moxibustion layer of the storage tank = available The vacuum pump pumps out a wide range of air within the airtight cloth cover. At the same time, by detecting the presence or absence of the gas tracer, it is possible to determine whether there is a gap in the weld bead to be tested; borrow & It can be applied to various Z bodies: 不 Uneven welding bead to be tested 'is a vacuum tracing leak detection structure with airtight cloth known as a more practical irregular shape.

527487 五、發明說明(3) 為使本發明使用之技術手段、發明特徵、達成目的與 功效易於明白了解,茲配合圖式及圖號詳細說明如下: 首先,請參閱第一圖所示,本發明係設有一適當大小 之不透氣布(1 ),於該不透氣布(1 )上則設有連結氣 閥(11),將連結管(2) —端連接於該連結氣閥(1 1 )上,另一端則可供連接於真空抽氣泵浦〔該真空抽氣 泵浦由於本身結構及作動方式係為一般習知者,且其結構 亦不在本發明專利範圍内’故於圖中未示及文中亦未詳加 說明〕。 本發明於使用時,請一併參閱第二〜六圖所示,其係 令該不透氣布(1 )罩蓋於儲存槽(3 )之各凹凸、高低 不平的待測焊道’且於不透氣布(i )周緣利用黏著Z體 (1 2 )予以和待測處周緣黏著固定,並同時於該儲存样 (3 )之夾層(3 1 )中注入氣體示蹤劑,令連^管^ 9 )另端所連結之真空抽氣泵浦將不透氣布(1 ) # 中之氣體,經由連結氣閥(i i)及連結管(2 乾圍 出,即可藉由檢測該氣體示蹤出現與否,σ而 =夕Y抽 道是否有縫隙者。 w iiw寺測焊 糟由以上所述,該元件之組成與使用實施 本發明與習用相較下,本發明由於係利用—^月可知, 透氣布,令其罩蓋黏著於儲存槽之待測焊軟材質之不 論係應用於儲存槽之各凹凸、高低不平’使得其不 、方便即能進行測試,而極具一實用便皆可輕鬆 綜上所述,本發明實施例確能達到所預2敫特性者。 4之使用功效527487 V. Description of the invention (3) In order to make the technical means, inventive features, objectives and effects of the present invention easy to understand, the detailed description with drawings and numbers is as follows: First, please refer to the first figure, this The invention is provided with an air-impermeable cloth (1) of appropriate size, and on the air-impermeable cloth (1), a connection air valve (11) is provided, and the end of the connection pipe (2) is connected to the connection air valve (1 1 ), The other end can be connected to a vacuum pump. [The vacuum pump is generally known because of its structure and operating method, and its structure is not within the scope of the patent of the present invention. ' Not shown and not explained in detail in the text]. When the present invention is used, please refer to the second to sixth figures together, which is to make the air-impermeable cloth (1) cover the uneven and uneven test bead of the storage tank (3) and the The periphery of the air-impermeable cloth (i) is adhered and fixed to the periphery of the place to be measured by the adhesive Z body (1 2), and at the same time, a gas tracer is injected into the interlayer (3 1) of the storage sample (3), so that the tube is connected. ^ 9) The vacuum pump connected to the other end will be surrounded by the gas valve (ii) and the connecting pipe (2) through the gas in the air-impermeable cloth (1) #, which can be traced by detecting the gas Appears whether or not, σ and = whether there is a gap in the Y-drawing path. W iiw Temple welding residue is described above. The composition and use of this component are compared with the implementation of the present invention. It can be seen that the breathable cloth makes the cover stick to the storage tank and the soft material to be tested, regardless of the unevenness and unevenness applied to the storage tank, making it inconvenient and convenient for testing, and it is very practical and convenient. It can be easily summarized that the embodiments of the present invention can indeed achieve the pre-defined characteristics.

第7頁 527487 五、發明說明(4) ,又其所揭露之具體構造,不僅未曾見諸於同類產品中, 亦未曾公開於申請前,誠已完全符合專利法之規定與要求 ,爰依法提出發明專利之申請,懇請惠予審查,並賜准專 利,則實感德便。Page 7 527487 V. Description of the invention (4), and the specific structure disclosed by it, has not only been found in similar products, nor has it been disclosed before the application. It has fully complied with the provisions and requirements of the Patent Law and was proposed in accordance with the law. The application for an invention patent is urged to be examined and granted a patent.

第8頁 527487 圖式簡單說明 參照圖式: 第一圖:本發明之立體示意圖 第二圖:本發明之使用狀態俯視參考圖(一) 第三圖:本發明之使用狀態側視參考圖 第四圖:本發明之使用狀態立體參考圖(一) 第五圖:本發明之使用狀態俯視參考圖(二) 第六圖:本發明之使用狀態立體參考圖(二) 第七圖··儲存槽之焊設狀態參考圖(一) 第八圖:儲存槽之焊設狀態參考圖(二) 第九圖:儲存槽之焊設狀態參考圖(三) 第十圖:儲存槽之焊設狀態參考圖(四) 第十一圖··習用之使用狀態參考圖Page 8 527487 The drawings are briefly explained with reference to the drawings: The first diagram: a perspective view of the present invention, the second diagram: the top view of the use state of the present invention (1) the third diagram: the side view of the use state of the present invention Figure 4: Stereo reference view of the use state of the present invention (1) Figure 5: Top reference view of the use state of the present invention (2) Figure 6: Stereo reference view of the use state of the present invention (2) 7th picture ·· Storage Reference drawing of the welding state of the tank (1) Figure 8: Reference drawing of the welding state of the storage tank (2) Figure 9: Reference drawing of the welding state of the storage tank (3) Reference picture (4) Figure 11 ·· Recommended use state reference picture

參照號數: (1 ) 不透氣布 ( 1 1 ) 連結氣閥 (12 ) 黏著膠體 ( 2 ) 連結管 (3 ) 儲存槽 ( 3 1 ) 夾層 (4 ) 測漏箱 ( 4 1 ) 透視窗 (42 ) 氣密墊 ( 4 3 ) 連接管Reference number: (1) Air-impermeable cloth (1 1) Connect gas valve (12) Adhesive gel (2) Connect pipe (3) Storage tank (3 1) Sandwich (4) Leak detection box (4 1) Perspective window ( 42) Airtight gasket (4 3) Connecting tube

Claims (1)

527487 六、申請專利範圍 一種不規則形狀立體焊道之不透氣布真空示蹤測漏結 構,其主要係設有適當大小之不透氣布,於該不透氣布上 可供以連結氣閥連接有連結管,該連結管之另一端則可供 連接有真空抽氣泵浦;527487 VI. Scope of patent application An irregularly shaped three-dimensional welding bead of airtight cloth vacuum tracer leak detection structure, which is mainly provided with an appropriate size of airtight cloth, on which the airtight cloth can be connected with a gas valve. A connection pipe, and the other end of the connection pipe can be connected with a vacuum pump; 藉此,即可將該不透氣布罩蓋黏著於儲存槽之各待測 不規則形狀立體焊道及表面,並於儲存槽之夾層内注入氣 體示蹤劑,利用真空抽氣泵浦將不透氣布罩蓋範圍内之空 氣向外抽出,即可經檢測該氣體示劑出現與否,而判斷出 該待測焊道及表面是否有縫隙處,以更具一實用便利之功 效性者。In this way, the air-impermeable cloth cover can be adhered to each irregularly shaped three-dimensional welding bead and surface of the storage tank to be measured, and a gas tracer can be injected into the interlayer of the storage tank. The air in the area of the breathable cloth cover is drawn out, and the presence or absence of the gas indicator can be detected to determine whether there are gaps in the weld bead and the surface to be tested for a more practical and convenient function. 第ίο頁Page ίο
TW91118144A 2002-08-13 2002-08-13 A device using airtight membrane, vacuum and tracer for leak detection TW527487B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019180372A1 (en) * 2018-03-21 2019-09-26 Gaztransport Et Technigaz Method for diffusing a tracer gas and method for leak testing a membrane
WO2019224475A3 (en) * 2018-05-22 2020-01-30 Gaztransport Et Technigaz Leak detection device
FR3087537A1 (en) * 2018-10-22 2020-04-24 Gaztransport Et Technigaz MEMBRANE WATERPROOFING TEST METHOD AND RELATED LEAK DETECTION DEVICE

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019180372A1 (en) * 2018-03-21 2019-09-26 Gaztransport Et Technigaz Method for diffusing a tracer gas and method for leak testing a membrane
FR3079301A1 (en) * 2018-03-21 2019-09-27 Gaztransport Et Technigaz METHOD FOR DIFFUSION OF A TRACER GAS AND METHOD FOR TESTING THE SEALING OF A MEMBRANE
US11467055B2 (en) 2018-03-21 2022-10-11 Gaztransport Et Technigaz Leak detection device
WO2019224475A3 (en) * 2018-05-22 2020-01-30 Gaztransport Et Technigaz Leak detection device
CN112469983A (en) * 2018-05-22 2021-03-09 气体运输技术公司 Leak detection apparatus
FR3087537A1 (en) * 2018-10-22 2020-04-24 Gaztransport Et Technigaz MEMBRANE WATERPROOFING TEST METHOD AND RELATED LEAK DETECTION DEVICE
WO2020084233A1 (en) * 2018-10-22 2020-04-30 Gaztransport Et Technigaz Membrane sealing test process and associated leak detection device
CN112888928A (en) * 2018-10-22 2021-06-01 气体运输技术公司 Membrane seal test method and associated leak detection apparatus
CN112888928B (en) * 2018-10-22 2023-10-24 气体运输技术公司 Membrane tightness test method and associated leak detection device

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