PRESSURE ACCUMULATOR FOR HIGH PRESSURE HYDROGEN GAS AND MANUFACTURING METHOD THEREOF

• Main Authors: FUKUCHI SHINYA, SHOJI TETSUO, OTANI KOHEI, OGAWA KAZUHIRO, ICHIKAWA YUJI
• Format: Patent
• Language: English; Japanese
• Published: 17.08.2017
• Subjects: BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PISTONS; SEALINGS; STORING OF DISTRIBUTING GASES OR LIQUIDS; THERMAL INSULATION IN GENERAL; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

PROBLEM TO BE SOLVED: To provide a pressure accumulator for high pressure hydrogen gas excellent in durability at low cost, and a manufacturing method thereof.SOLUTION: Disclosed is a method of manufacturing a pressure accumulator for high pressure hydrogen gas having a metal liner configured to store hydrogen gas. The manufacturing method includes a step of spraying mixed powder of aluminum power and metal oxide powder to an inner surface of the metal liner by a cold spray method, and forming on the inner surface of the metal liner a coating film comprising a composite body of aluminum and a metal oxide.SELECTED DRAWING: Figure 1 【課題】低コストで耐久性に優れた高圧水素ガス用蓄圧器およびその製造方法を提供すること。【解決手段】水素ガスを貯蔵する金属製ライナーを有する高圧水素ガス用蓄圧器の製造方法である。本発明の製造方法は、アルミニウム粉末と金属酸化物粉末との混合粉末をコールドスプレー法により金属製ライナーの内面に吹き付けて、金属製ライナーの内面上にアルミニウムと金属酸化物の複合体からなる皮膜を形成する工程を含む。【選択図】図１