201144660 六、發明說明： 【發明所屬之技術領域】 本發明是有關於-種管路測漏方法，特別是指一種不 會產生汙損且不會破壞外壁的管路測漏方法。 【先前技術】 現有的官路測漏方法，是在一封閉的待測管路中充填 -具有-壓力的液體，此時，由於管路内側壓力大於外側 壓力，因此該液體會自管路中的裂縫流出，藉由觀察該液 體流出的位置即可得知管路茂漏的位置，進而供後續施工 修復。 然而，為了增加辨識度，必須添加有色染料於該液體 中，此時有色的該液體自裂縫流出時會對外側的牆壁產生 液體暈開或過度染色的現象，而增加美觀問題及後續清理 上的不便，此外，由於液體的不可壓縮特性，因此會使加 壓後的液體在流出該裂縫時會撐大結構較為脆落的^縫， 甚至破壞位於外侧的牆壁，而使壁上的漆剝落，因此必須 以更多的修補材料進行修復，反而多增加施工的成本。、 【發明内容】 因此，本發明之目的，即在提供一種不會汙損管路洩 漏位置以及不破壞外壁的管路測漏方法。 於是，本發明管路測漏方法，適用於一待測管路，該 待測管路具有一流體輸入段，及複數流體輸出段，該方= 先封閉該流體輸入段，並排出該待測管路中的流體，接著 選定該流體輸入段及該等流體輸出段的其中一者作為操作 201144660 段，並封閉其餘的管路段，然後自該操作段輸入一測試氣 體，並維持該待測管路内的壓力於一保持壓力，最後利用 一可偵測該測試氣體的氣體濃度偵測器於相對應該待測管 路的位置進行移動式偵測，並將該測試氣體的氣體濃度最 咼的位置標示為管路洩漏位置。 本發明之功效在於：該測試氣體自裂縫洩漏時不會對 該待測管路產生不良影響，進而可在不汙損管路洩漏位置 以及不破壞外壁的狀況下偵測出待測管路的破損位置。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖1、2、3 ’本發明管路測漏方法之該較佳實施例 適用於-待測管路2 ' 一打氣裝置3 ’及一氣體濃度偵測器 4，該管路測漏方法包含步驟514。 該待測管路2包括一流體輸入段21、四流體輸出段 ，及一具有一裂縫231的管身段23。於本實施例_，該待 測管路2為-種自來水管路，該流體輸人段2ι為自來水管 路的上游閘道’該等流體輸出段22分別為水龍頭，流體^ 自來水。 # 該打虱裝置3具有一輸出一測試氣體3〇的輸出部3ι、 -容置該測試氣體3G的容置部32,及—位於該輸出部3】 及該容置冑32之間以對該測試氣體3()進行㈣的調屋部 33 ’及-量測該輸出部31内的氣體壓力的壓力感測器 201144660 於本實施例中，該測試氣體30是壓力高於大氣壓力的高壓 二氧化碳，並可於減壓後在通風的環境内進行使用，但也 可以是擇自於二氧化碳、惰性氣體、其他對人體無害之氣 體，或此等之一組合。 該氣體濃度偵測器4用以偵測該測試氣體30,並可顯 不所在位置的氣體濃度'於本實施例中，該氣體濃度偵測 器4是沿一包覆該待測管路2的壁面（圖未示）移動，並 可偵測二氧化碳的濃度，但是該氣體濃度偵測器4也可以 依該測試氣體30的種類而相對應改變成適合的機型。 於步驟41中，先封閉該流體輸入段21，使該待測管路 2不再持續有流體流入，接著排出該待測管路2中的流體而 使該待測管路2内保持無流體狀態。 步驟42中，接著選定該流體輸入段21及該等流體輸 出丰又22的其中一者作為操作段221，並封閉其餘的管路段 。於本實施例中，該操作段221為其中一流體輸入段22， 斤才曰八餘的笞路&為除该操作段221以外的流體輸出段22 Τ及該流體輸入段21 ’但是該操作段221也可以是選擇該 流體輸入段21，而封閉該等流體輸出段22。 > ^步驟43中，利用該打氣裝置3的輸出部31連接於該 /待測g路2的該操作段221，並輸入該測試氣體3〇至填 滿該待測管路2,由於該輸出部31連通於該待測管路2, 因此-亥壓力m 34所量測到的壓力即會等同於該待測管 路2内的壓力，此時由於該待測管路2中的該測試氣體川 會自該裂縫23 1茂漏，因此該打氣裝置3在透過該壓力感 201144660 • 34量測出管内壓力後’即可透過視壓力值大小而持續 調整供應朗試氣體3G的大小的方式使該彳㈣管路2内 的壓力維持於一保持壓力。要說明的是，該保持麗力必須 大於該氣體濃度偵測器4所處環境的壓力（―般為大氣壓 力），且小於該待測管路2本身的最高耐壓麗力，此外，該 保持壓力可視不同的待測管路2而調整不同的大小。/ …步驟44中，利用該氣體濃度偵測器4於相對應該待測 :路2的該壁面進行移動式_，並記錄偵測到該測試氣 的氣體濃度，-旦發現氣體濃度最高的位置即代表為 管路產生該魏231之處，此時即可將該位置標示為= 洩漏位置，以供後續加工修復^ 要說明的疋，由於覆蓋於該待測管路2外側的牆壁仍 會存在有可供細小的氣體分子通過的孔隙，使該待測氣體 3〇會自該裂，縫231外側的壁面逸出，而不會損壞該待測管 路2及外側的壁面，進而使相對位置的氣體濃度會高於其 他部位，因此，利用該氣體濃度偵測胃4所 濃 度較高的位置，即為該裂縫231的所在位置。 體濃 .此外’當該待測管路2具有多處裂縫231日夺，可於修 補完一個裂縫23 1後，舌紐拙> # μ ^ 便重新執仃該官路測漏方法即可依次 尋找出所有的裂縫231並進行填補。 r上所述由於本發明是在該待測管路2充填該測試 氣體30,因此由該裂縫231茂漏的氣體並不會對該待測管 路2或外侧的壁面產生影響，相較於現有的方法，本發明 可在不汙損該管路洩漏位置以及不破壞外壁的狀況下偵測 201144660 出該待測管路2的破損位置， 故確貫能達成本發明之目的 惟以上所述者’僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一待測管路的示意圖； 圖2是本發明管路測漏方法的一較佳實施例應用於該 待測管路的示意圖；及 圖3是該較佳實施例的流程圖》 201144660 【主要元件符號說明】 2...... •…待測管路 31…… …輸出部 21••… 體輸入丰又 32…… …容置部 22····· •…流體輸出段 33…… …調壓部 221… •…操作段 34…… …壓力感測器 23··.·· •…管身段 4 ....... …氣體濃度偵測器 231… •…裂縫 51〜54. …管路測漏方法的 3…… •…打氣裝置 步驟 30··.·. 測试氣體201144660 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a method for leak detection of a pipeline, and more particularly to a pipeline leakage detecting method which does not cause fouling and does not damage the outer wall. [Prior Art] The existing official road leak detection method is to fill a liquid with a pressure in a closed pipeline to be tested. At this time, since the pressure inside the pipeline is greater than the lateral pressure, the liquid will be in the pipeline. The crack flows out, and the position of the leaking of the pipeline can be known by observing the position where the liquid flows out, and then it can be repaired by subsequent construction. However, in order to increase the degree of recognition, it is necessary to add a colored dye to the liquid. At this time, when the colored liquid flows out from the crack, it will cause liquid blooming or excessive dyeing on the outer wall, and increase the aesthetic problem and subsequent cleaning. Inconvenience, in addition, due to the incompressible nature of the liquid, the pressurized liquid will expand the brittle structure when it flows out of the crack, and even destroy the wall located on the outer side, causing the paint on the wall to peel off. Therefore, it is necessary to repair with more repair materials, which in turn increases the cost of construction. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method for leak detection of a pipeline that does not contaminate the pipeline leakage location and does not damage the outer wall. Therefore, the pipeline leak detection method of the present invention is applicable to a pipeline to be tested, the pipeline to be tested has a fluid input section, and a plurality of fluid output sections, the square = first closing the fluid input section, and discharging the to-be-tested The fluid in the pipeline is then selected as one of the fluid input section and the fluid output sections as the operation 201144660 section, and the remaining pipeline sections are closed, and then a test gas is input from the operation section, and the pipeline to be tested is maintained. The pressure in the road is maintained at a pressure, and finally a gas concentration detector capable of detecting the test gas is used for mobile detection at a position corresponding to the pipeline to be tested, and the gas concentration of the test gas is the worst. The location is indicated as the leak location of the pipeline. The effect of the invention is that the test gas does not adversely affect the pipeline to be tested when leaking from the crack, and the pipeline to be tested can be detected without contaminating the pipeline leakage position and without damaging the outer wall. Broken location. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to Figures 1, 2, and 3, the preferred embodiment of the pipeline leak detection method of the present invention is applicable to - the pipeline to be tested 2 'a gas pumping device 3' and a gas concentration detector 4, the pipeline leakage detecting method Step 514 is included. The pipeline to be tested 2 includes a fluid input section 21, a four-fluid output section, and a tubular section 23 having a slit 231. In the present embodiment, the pipeline 2 to be tested is a type of tap water pipeline, and the fluid input section 2 is an upstream gate of the water pipe. The fluid output sections 22 are respectively faucets, fluids, and tap water. # The snoring device 3 has an output portion 3i for outputting a test gas 3〇, a receiving portion 32 for accommodating the test gas 3G, and a gap between the output portion 3 and the receiving port 32. The test gas 3() performs the (4) room adjustment portion 33' and a pressure sensor 201144660 for measuring the gas pressure in the output portion 31. In the present embodiment, the test gas 30 is a high pressure higher than atmospheric pressure. Carbon dioxide can be used in a ventilated environment after decompression, but it can also be selected from carbon dioxide, inert gases, other gases that are harmless to the human body, or a combination of these. The gas concentration detector 4 is configured to detect the test gas 30 and can display the gas concentration at the location. In the embodiment, the gas concentration detector 4 is coated along the pipeline 2 to be tested. The wall (not shown) moves and can detect the concentration of carbon dioxide, but the gas concentration detector 4 can also be changed to a suitable model depending on the type of the test gas 30. In step 41, the fluid input section 21 is first closed, so that the pipeline 2 to be tested no longer has fluid inflow, and then the fluid in the pipeline 2 to be tested is discharged to keep the fluid to be tested in the pipeline 2 to be tested. status. In step 42, one of the fluid input section 21 and the fluid output augmentation 22 is selected as the operating section 221 and the remaining piping sections are closed. In this embodiment, the operating section 221 is one of the fluid input sections 22, and the loops & are the fluid output section 22 and the fluid input section 21' except the operating section 221. The operating section 221 may also select the fluid input section 21 to enclose the fluid output sections 22. > ^ In step 43, the output portion 31 of the pumping device 3 is connected to the operation section 221 of the /test g path 2, and the test gas 3〇 is input to fill the pipeline 2 to be tested, since The output portion 31 is connected to the pipeline 2 to be tested, so that the pressure measured by the pressure m 34 is equivalent to the pressure in the pipeline 2 to be tested, at which time the pipeline 2 is in the pipeline to be tested. The test gas will leak from the crack 23 1 , so the gas pumping device 3 can continuously adjust the size of the supply test gas 3G through the pressure value after the pressure is measured by the pressure of 201144660 • 34. The method maintains the pressure in the crucible (4) line 2 at a holding pressure. It should be noted that the retention force must be greater than the pressure of the environment in which the gas concentration detector 4 is located ("typically atmospheric pressure"), and is smaller than the highest withstand voltage of the pipeline 2 to be tested, and The pressure can be adjusted to different sizes depending on the pipeline 2 to be tested. / ... In step 44, the gas concentration detector 4 is used to move the _ to the wall surface of the road 2 to be tested, and the gas concentration of the test gas is detected, and the position where the gas concentration is highest is found. That is, it means that the Wei 231 is generated for the pipeline. At this time, the position can be marked as = leak position for subsequent processing and repairing, as the wall covering the outside of the pipeline 2 to be tested will still be There is an aperture through which fine gas molecules can pass, so that the gas to be tested will escape from the wall surface outside the slit 231 without damaging the wall of the pipeline 2 to be tested and the outer wall, thereby making the relative The gas concentration at the position is higher than other portions, and therefore, the position at which the concentration of the stomach 4 is higher is detected by the gas concentration, that is, the position of the crack 231. In addition, when the pipe 2 to be tested has multiple cracks for 231 days, after repairing a crack 23 1 , the tongue 拙 ># μ ^ will re-execute the official road leak detection method. Find all the cracks 231 in turn and fill them. Since the present invention is to fill the test gas 30 in the pipeline 2 to be tested, the gas leaked by the crack 231 does not affect the wall of the pipeline 2 or the outside to be tested, as compared with According to the existing method, the present invention can detect the damage position of the pipeline 2 to be tested in 201144660 without contaminating the leak position of the pipeline and without damaging the outer wall, so that the object of the present invention can be achieved only by the above. The present invention is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are still Within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a pipeline to be tested; FIG. 2 is a schematic view showing a preferred embodiment of the pipeline leak detection method of the present invention applied to the pipeline to be tested; Flowchart of the embodiment 201144660 [Explanation of main component symbols] 2... • The pipeline to be tested 31... The output section 21••... The volume input is 32.... The accommodation section 22·· ··· •...fluid output section 33...pressure regulating section 221...•...operating section 34...pressure sensor 23·····•...pipe section 4............ gas concentration Detector 231... •...Crack 51~54. ...Line leak detection method 3... •...Air pump step 30····. Test gas