201235649 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種用於對例如以埋設於地下並供流 體通過的大徑管的接縫部為代表的部分以及其他部分有無 汽漏進行檢測，以於早期進行應對的配管的洩漏檢測方法 及其裝置。 【先前技術】 一般而言，農業用水、工業用水、自來水管等中所使 用的配管，通常使用的是具有供操作人員進入其中的程度 的内徑的大徑管（700φ以上）。 隨著時間的經過，該些配管内部流動的流體會從因該 配管的管接縫部的接合不良或其他腐触的發生等所引起的 穿孔等而發生洩漏，反而會發生管内流入地下水等的不良 情況。 尤其對於埋設於地下的配管而言，不容易找出其洩漏 部位。 先前是藉由使配管内為空，密封其兩端而對其内部壓 入水、空氣等的壓力流體以觀察損傷部位的洩漏狀況，藉 此對有無損傷進行判斷。 然而，上述先前的檢查方式中，即便能夠掌握有無流 體的洩漏，亦存在不僅難以指定該洩漏部位，而且洩漏的 檢測中要耗費大量時間及手續的問題。 [先行技術文獻] [專利文獻] 4201235649 VI. Description of the Invention: [Technical Field] The present invention relates to a portion for representing a joint portion of a large diameter pipe buried in a ground and for allowing a fluid to pass through, and other portions for presence or absence of a steam leak. The detection method and device for leak detection of piping for early response. [Prior Art] In general, pipes used for agricultural water, industrial water, water pipes, and the like are generally used as large diameter pipes (700 φ or more) having an inner diameter to which an operator enters. As time passes, the fluid flowing inside the pipes leaks from perforations caused by poor joints or other occurrences of corrosion of the pipe joint portion of the pipe, and instead, the inside of the pipe flows into the groundwater or the like. Bad situation. Especially for piping buried in the ground, it is not easy to find the leaking part. In the past, the inside of the piping was sealed, and the pressure fluids such as water and air were pressed inside the piping to observe the leakage state of the damaged portion, thereby judging whether or not the damage occurred. However, in the above-described prior inspection method, even if it is possible to grasp the presence or absence of leakage of the fluid, it is difficult to specify not only the leaked portion but also a large amount of time and procedures in the detection of the leak. [Priority Technical Literature] [Patent Literature] 4
X X201235649 [專利文獻1]日本專稿開綱4125628 【發明内容] 鄕眼於上述方面，其課題在於藉由對配管的茂 1 '二：進行局部性探索而可迅速且可靠地發現該部 位，從而能夠儘早進行應對。 。、隹決上述課題的手段，本發具有可供操作人 ^進的心且内部用以供流體通過的配管中，於上述配 管^漏檢查對象位置的内取氣密狀態來覆蓋内周面由 剛體限制，由彈性材料構成的帶狀的環狀薄片，對該環狀 薄片與配f内表面之間供給壓力流體，並藉由對該壓力流 體供給錢的壓力㈣進行測絲檢測配管的泡漏。 上述中，較佳為附設加壓單元，該加壓單元使上述環 狀薄片的兩側緣部壓接至配管的内周面，用以提高氣密性。 以剛性來限制上述環狀薄片的内周面的環狀芯較佳構 成為：由在圓周方向上分割為多個的扇形芯部片的集合而 構f ’將該些芯部#以於配管喊接成環狀且沿著上述環 狀薄片的内周面的方式而組裝自如。 作為上述加壓單元，較佳為包括：抵接於上述環狀薄 片的周緣部内周面的由彈性體構成的環狀緩衝體；接收應 將該緩衝體按駐上述環狀薄片的侧緣部的遷力流體的供 給而膨服自如的加壓環；及用以對該加壓環供給壓力流體 的加壓用壓力流體供給單元。 上述加塵環及緩衝體可設键入至形成在上述環狀芯 的兩侧部的口袋内。 201235649 [發明的效果j 根據本發明，使配管内為空 的接縫部或由腐物引起的損傷==配管 部位的配管内周面’藉由具:柳有戌漏的 =面的形狀’然後對該環狀薄二 ==行檢查，而是局部地依 具^效率且迅速地進行茂漏檢查的效果。 面的ίϊΐϊ上封件的兩側緣密接於配管的内周 献〜夠步提高形成於該環狀㈣件與 空間的氣密性，從而可使檢查精度進 提咼。 與配管的内周面接觸的構件如果是具有彈性的環狀薄 片’則不會發生使配管的内表面受損等使配管受損的情況。 *為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 【實施方式】 圖1表示作為本發明的通用對象的配管及環狀芯部分 的剖面圖’圖2表示將本發明應用於管接縫部的洩漏檢查 的狀態的相當於圖1的Α_Α的剖面圖，圖3表示該主要部 分的放大剖面圖。 作為適用對象的配管i為具有能夠供操作人員進入其 6X X201235649 [Patent Document 1] Japanese Special Publication 4125628 [Summary of the Invention] In view of the above, an object of the present invention is to quickly and reliably find the portion by performing local exploration on the tube 1 'two: So that you can respond as early as possible. . In the piping for allowing the fluid to pass through and the inside of the piping for the passage of the inspection object, the inside of the piping is in an airtight state to cover the inner circumferential surface. The rigid body is limited to a strip-shaped annular sheet made of an elastic material, and a pressure fluid is supplied between the annular sheet and the inner surface of the distribution f, and the pressure of the pressure fluid is supplied (four) to detect the bubble of the pipe. leak. In the above, it is preferable to provide a pressurizing unit that presses both side edges of the annular sheet to the inner peripheral surface of the pipe for improving airtightness. The annular core that restricts the inner circumferential surface of the annular sheet by rigidity is preferably configured such that the core portions are divided by a plurality of fan-shaped core pieces divided into a plurality of circumferential directions. It is assembled so as to be connected to the inner peripheral surface of the annular sheet in a ring shape. Preferably, the pressurizing unit includes an annular buffer body made of an elastic body that abuts against an inner peripheral surface of the peripheral edge portion of the annular sheet; and receives the buffer body in a side edge portion of the annular sheet. a pressurizing ring that is freely swellable by the supply of the fluid, and a pressurized fluid supply unit for supplying a pressurized fluid to the pressurizing ring. The dust collecting ring and the cushioning body may be placed in a pocket formed on both side portions of the annular core. 201235649 [Effects of the Invention j According to the present invention, the joint portion which is empty in the pipe or the damage caused by the rot] = the inner circumferential surface of the pipe at the pipe portion is formed by the shape of the face of the pipe Then, the annular thin two == line inspection is performed, but the effect of the leak inspection is performed locally and efficiently. The two sides of the surface of the upper seal are in close contact with the inner circumference of the pipe. The step is to increase the airtightness formed in the ring (four) and the space, so that the inspection accuracy can be improved. If the member which is in contact with the inner peripheral surface of the pipe is an elastic annular sheet, the pipe may not be damaged due to damage to the inner surface of the pipe. The above and other objects, features, and advantages of the present invention will become more apparent from the understanding of the appended claims appended claims [Embodiment] FIG. 1 is a cross-sectional view showing a pipe and a ring core portion which are common objects of the present invention. FIG. 2 is a cross-sectional view corresponding to FIG. 1 in a state in which the present invention is applied to a leak inspection of a pipe joint portion. Fig. 3 is an enlarged cross-sectional view showing the main part. The piping i to be applied has the ability to allow the operator to enter the 6
X X201235649 中的程度的内徑的大徑管（7〇〇φ以上、， 先前一般所採用的配管同樣管二 m外胁另-管1Β的管端的嵌合連接部3，藉由另 ^/合=抵置住該嵌合連接部3的内端的肩㈣固 的接m管1的管接縫部2的内周面以跨越管iA、m I”…添設著密封材料4,藉由止動帶 tH)。5、5而密接^A、1B_面從而 戌漏進行檢查接縫部2中的流體有無 薄片環狀 Q ^ 有此官1的營接縫部2的内周 =而权置且由彈性材料構成；環狀芯7，以_剛性來限 壓J環：薄片6的内周面的方式跨及整周區域而配置;加 =設於該環狀芯7並使上述環狀薄片6的兩 側緣物、6a壓接至f 1A、m的 單元i。，對形成於上述環狀薄 該壓力流體供給單元供給壓力流體的 〜上;Μ力的_進行測定來檢測朗。 述衣狀溥片6由橡膠、合成橡膠、軟質合 有彈性的材料來構成，且具有跨越上述“】 的吕接_ 2而設置的寬度，上述環狀薄片6的兩側緣部 201235649 6a、如形成為厚壁且在該兩侧緣部6&、&的外表面兩侧 位，處以氣密性地密接於管1A、1B的内周面的方式而形 成著突堤6b、6b。 …上述環狀芯7由在圓周方向上分割為多個的形態的扇 1心4片7A、7A.·.的集合而形成，將該些扇形芯部片7A、 7A··.在配管〗_由螺栓12等連結成環狀，藉此形成具 有剛性的環狀芯7。 、上述扇形芯部片7A包括：具有與配管i的内周面相 似的曲面凸圓弧面的止動面部（如也㈣犯也比）13，設 置於該止動面部13的寬度方向巾央部及左右兩侧部的凸 緣(nb)14、14、14，及與寬度方向成正交方向的凸緣15、 15,上述止動面部13中插通支持著安裝於上述環狀薄片6 的插塞(plug)16,該插塞16中經由閥17而連接著壓力流體 供給單元10的配管。 於上述芯部片7A的寬度方向兩側部的凸緣14、14的 内側形成著口袋（p0Cket) 18、18，該口袋18、18内設置 著上述加壓單元8、8。 立上述加壓單元8包括：抵接於上述環狀薄片6的侧緣 «Ρ 6a的背面的由橡膠等的彈性材料構成的環狀的緩衝 (CU，i〇n)體19，及以埋設於應按壓該緩衝體19的背面的 口袋|18内的方式而配設的加壓環2〇，該加壓環2〇設為中 空的管（tube)構造，且連接於安裝在口袋18的底部的插 塞21，通過該插塞21而自加壓用壓力流體供給系統22接 收壓力流體的供給後發生膨脹，按壓上述緩衝體19以對環 8 201235649 狀薄片6 日，丨/X X201235649 The inner diameter of the large diameter pipe (7 〇〇 φ or more, the pipe used in the previous general pipe is the same as the pipe fitting connection 3 of the pipe end of the pipe 1 ,, by the other ^ / The inner circumferential surface of the pipe joint portion 2 of the m-tube 1 which is fixed to the inner end of the fitting connection portion 3 is provided with a sealing material 4 interposed therebetween, by means of the pipe iA, m I" Stopping belt tH). 5, 5 and close the ^A, 1B_ surface to check for leaks. Check whether the fluid in the joint portion 2 has a sheet ring Q ^ The inner circumference of the joint portion 2 of the official 1 = The ring core 7 is configured to limit the pressure of the J ring by the _ rigidity: the inner circumferential surface of the sheet 6 is disposed across the entire circumference area; and the addition is performed on the annular core 7 and the above The both side edges of the annular sheet 6 and 6a are crimped to the unit i of f 1A and m. The pressure is supplied to the pressure fluid supply unit of the annular thin pressure medium, and the pressure is measured to detect The garment-like cymbal 6 is composed of a rubber, a synthetic rubber, a soft elastic material, and has a width spanning the above-mentioned "], and both sides of the annular sheet 6 The edge portion 201235649 6a is formed as a thick wall and is formed on the inner peripheral surfaces of the tubes 1A and 1B in a gas-tight manner on both sides of the outer surfaces of the both side edges 6 && 6b, 6b. The annular core 7 is formed by a collection of four pieces of the fan cores 7A, 7A, . . . which are divided into a plurality of sections in the circumferential direction, and the fan-shaped core pieces 7A, 7A··. The ring 12 is connected in a ring shape by bolts 12 or the like, thereby forming a ring-shaped core 7 having rigidity. The sector-shaped core piece 7A includes a stopper surface (also referred to as "four") 13 having a curved convex arc surface similar to the inner circumferential surface of the pipe i, and is disposed at the width direction of the stopper surface 13 The flanges (nb) 14 and 14 and 14 on the left and right side portions and the flanges 15 and 15 in the direction orthogonal to the width direction are inserted into and supported by the above-mentioned annular sheet 6 A plug 16 in which the pipe of the pressure fluid supply unit 10 is connected via a valve 17. Pockets (18) 18 are formed on the inner sides of the flanges 14, 14 on both sides in the width direction of the core piece 7A, and the pressurizing units 8 and 8 are provided in the pockets 18 and 18. The pressurizing unit 8 includes an annular buffer (CU, i〇n) body 19 made of an elastic material such as rubber that abuts against the back surface of the side edge «Ρ 6a of the annular sheet 6, and is embedded. The pressure ring 2 is disposed in a pocket|18 that is to be pressed against the back surface of the cushion body 19, and the pressure ring 2 is a hollow tube structure and is attached to the pocket 18 The plug 21 at the bottom is expanded by the supply of the pressure fluid from the pressurizing pressure fluid supply system 22 through the plug 21, and the buffer body 19 is pressed to the ring 8 201235649-shaped sheet for 6 days, 丨/
供給至上述加壓環20的壓 間9供給賴力流體共享供給源 ί亍加壓，從而壓接至管1A、1B的 設置於上述供給系統令的閥。 的壓力流體是與向上述測試空 給源，或是另外準備，可為任 而亦可代替上述環狀芯7而由帶狀部片構成，藉 + UCkle)使該帶狀部片的端部縫合在一起而呈環 内周^由該帶扣來調節環徑從而密接於上述環狀薄片6的 然後，對上述實施形態的作用進行說明。 ，了對來自成為檢查對象的配管i的管接縫部2的洩 弋檢查，而如圖3所示以跨越管接縫部2的接縫的方 ，沿著其内周面添設環狀薄片6,使環狀芯7的芯部片7a 的止動面部13依次抵接於該環狀薄片6的背面，並且利用 螺栓12將芯部片7A、7A...彼此緊固，從而最終成為環狀。 此時於環狀芯7的口袋18、18内分別設置著加壓環 20與緩衝體19，且以該緩衝體19位於上述環狀薄片6的 左右的側緣部6a、6a的背面的方式而設置。 然後’通過對加壓環20供給壓力流體的壓力流體供給 系統22來供給壓力流體，使加壓環2〇膨張而按壓緩衝體 19的背部，藉由該緩衝體19、19而將環狀薄片6的兩側 ，部6a、6a擠壓至管ΙΑ、1B的内周面從而密接成氣密狀 態’藉此’由配管1的包含管接縫部2在内的管内表面與 環狀薄片6而使跨及配管1的整個内周的測試空間9形成 201235649 為氣密狀態。 由此，通過插塞16而自壓力流體供給系統ίο將壓力 流體供給至上勒】試㈣9内。此時若管接縫部2中有流 體/¾漏貝1J壓力流體供給系統中的壓力會發生變動，因此 邊A漏檢測單元li檢測到該變動並判斷為發生流體戌 漏，且轉向以進行管接縫部2的修補。 即便在對管接縫部2以外的檢錄象部位進行檢查的The pressure supply 9 supplied to the pressure ring 20 is supplied to the pressure-receiving supply source 亍, and is pressurized to the valves of the pipes 1A and 1B provided in the supply system. The pressure fluid is supplied to the test air supply source, or is prepared separately, and may be formed by a strip-shaped piece instead of the above-mentioned annular core 7, and the end portion of the strip-shaped piece is sutured by + UCkle) The action of the above embodiment will be described with the inner circumference of the ring being adjusted by the buckle to adjust the ring diameter to be in close contact with the annular sheet 6. In the pipe joint portion 2 from the pipe i to be inspected, the pipe joint portion 2 is vented, and as shown in Fig. 3, a ring is formed along the inner circumferential surface of the pipe joint portion 2. The sheet 6 is such that the stopper surface portion 13 of the core piece 7a of the annular core 7 abuts against the back surface of the annular sheet 6, and the core sheets 7A, 7A, ... are fastened to each other by the bolt 12, thereby finally Become a ring. At this time, the pressure ring 20 and the cushion body 19 are respectively provided in the pockets 18 and 18 of the annular core 7, and the buffer body 19 is located on the back surface of the left and right side edge portions 6a and 6a of the annular sheet 6. And set. Then, the pressure fluid is supplied by the pressure fluid supply system 22 that supplies the pressure fluid to the pressure ring 20, and the pressure ring 2 is expanded to press the back of the buffer body 19, and the annular sheet is pressed by the buffer bodies 19, 19. The both sides 6 and 6a are pressed to the inner circumferential surface of the tube 1 and 1B to be in an airtight state, thereby "by" the inner surface of the tube including the tube joint portion 2 of the pipe 1 and the annular sheet 6 The test space 9 spanning the entire inner circumference of the pipe 1 is formed into a hermetic state at 201235649. Thereby, the pressure fluid is supplied from the pressure fluid supply system ίο through the plug 16 to the test (4) 9 . At this time, if there is a fluid/3⁄4 leak in the pipe joint portion 2, the pressure in the pressure fluid supply system fluctuates, so the side A leak detecting unit li detects the change and determines that fluid leakage occurs, and the steering is performed. Repair of the pipe joint portion 2. Even if the inspection image portion other than the pipe joint portion 2 is inspected
If况下亦可按照與上述相同的順序而於被預測發生洩漏 的部位的崎1㈣表她裝環狀薄# 6、雜芯 行洩漏檢查。 —雖然本發明已以較佳實施例揭露如上，財並非用以 限,本發明，任何熟習此技藝者，在不脫離本發明之精神 ，圍内’當可作些許之更動與㈣，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1是表示用以實施本發明的管的洩漏檢測方法的檢 >則裝置的概要的剖面圖。 圖2疋表示相當於圖1的a_a的剖面圖。 圖3是圖1的主要部分的放大剖面圖。 【主要元件符號說明】 1 :配管 ΙΑ、1B :管 2 :管接縫部 3:嵌合連接部 201235649 3a :肩部 4:密封材料 5 :帶 6 :環狀薄片 6a :側緣部 6b :突堤 7 :環狀芯7A :芯部片 8:加壓單元 9:測試空間 10 :壓力流體供給單元 10a :泵 11 :洩漏檢測單元 12 :螺栓 13 :止動面部 14、15 :凸緣 16、 21 :插塞 17、 22a :閥 18 : 口袋 19 :緩衝體 20 :加壓環 22 :加壓用壓力流體供給系統 πIn the case of If, it is also possible to install a ring-shaped thin film #6 in the same order as above in the area where the leak is predicted. The present invention has been disclosed in the above preferred embodiments, and the present invention is not limited thereto. Any person skilled in the art can make some changes and (4) without departing from the spirit of the present invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing an outline of a device for performing a leak detection method for a pipe according to the present invention. Fig. 2A is a cross-sectional view corresponding to a_a of Fig. 1. Fig. 3 is an enlarged cross-sectional view showing the main part of Fig. 1. [Description of main component symbols] 1 : Pipe ΙΑ, 1B : Pipe 2 : Pipe joint 3 : fitting connection portion 201235649 3a : shoulder 4 : sealing material 5 : belt 6 : annular sheet 6 a : side edge portion 6 b : Jet 7: annular core 7A: core piece 8: pressurizing unit 9: test space 10: pressure fluid supply unit 10a: pump 11: leak detecting unit 12: bolt 13: stop face 14, 15: flange 16, 21: Plug 17, 22a: Valve 18: Pocket 19: Buffer 20: Pressurized ring 22: Pressure fluid supply system for pressurization π