WATER TIGHTNESS TESTING DEVICE, AND WATER TIGHTNESS TESTING METHOD USING THE SAME

• Main Authors: KATAHIRA KAZUJI, FUJIMOTO MITSUNOBU, YAMAUCHI TOMOYA, KIZU MASATAKA, KIM JEONG-JU, MATSUMURA MAKOTO, TATEISHI YASUNORI, SATO YASUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 13.10.2016
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

PROBLEM TO BE SOLVED: To allow for filling the test section with water.SOLUTION: A first plug 10 and a second plug 11 that expand by pumping air are connected to a compressor C through a first vent pipe 12 and a second vent pipe 13. A water flow pipe 14 penetrating the first plug 10 and having an outlet projecting toward the second plug 11 is connected to a water supply pump P2 through a water supply tube 17 and to an exhaust pipe 19 penetrating the second plug 11 and projecting toward the first plug 10. An tip of a projection portion 19c of the exhaust pipe 19 is provided with a float 20 floating on the water. When water is injected from an outlet 14a of the water flow pipe 14 into a test section and the test section is filled with water, the float on the water causes the tip of the projection portion 19c of the exhaust pipe 19 to come to the upper end of the test section and the air in the test section is discharged from that tip through the exhaust pipe 19.SELECTED DRAWING: Figure 1 【課題】試験区間内に水を満たすことができるようにする。【解決手段】空気を入れることで膨らむ第一プラグ１０及び第二プラグ１１に、第一通気管１２及び第二通気管１３を介してコンプレッサＣが接続され、第一プラグ１０を貫通し、第二プラグ１１に向かって突出する吐出口を有する通水管１４に給水チューブ１７を介して給水ポンプＰ２が接続され、第二プラグ１１を貫通し、第一プラグ１０に向かって突出するように排気管１９が接続される。排気管１９の突出部１９ｃ先端に水に浮くフロート２０が取り付けられる。通水管１４の吐出口１４ａから試験区間内に水が注入され、試験区間内に水が満ちると、水に浮くフロートにより、排気管１９の突出部１９ｃ先端が試験区間内の上端部に位置し、その先端から試験区間内の空気が排気管１９により排出される。【選択図】図１