WELDING TYPE PIPE JOINT

• Main Authors: YAMAMOTO RYUHEI, IMAI SHOTA
• Format: Patent
• Language: English; Japanese
• Published: 20.09.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a miniaturized welding type pipe joint having sufficient wall thickness to pressure of fluid flowing in a passage.SOLUTION: A welding type pipe joint 1 includes: a shaft body 2 having an axial center B; an axial passage 3; and a radial passage 4 having one end communicated with the axial passage 3 and the other end opened on an outer peripheral surface of the shaft body 2. A fluid pipeline connected to the axial passage 3 and the other fluid pipeline connected to the radial passage 4 are welded to the shaft body 2. A flat surface 5 in parallel with the axial passage 3 is provided at a portion of the shaft body 2 in which the radial passage 4 is opened. A center C of the axial passage 3 is eccentric to the axial center B in the direction separating from the flat surface 5. Due to this structure, even when the flat surface 5 is formed in the shaft body 2, sufficient wall thickness enough to respond to pressure of hydrogen gas can be secured around the axial passage 3 opened on one side end surface 2B and the other side end surface 2C in the shaft body 2 without increasing an outside dimension φA of the shaft body 2.SELECTED DRAWING: Figure 3 【課題】通路内を流れる流体の圧力に対して十分な肉厚を有し、かつ小型化された溶接式管継手を提供する。【解決手段】溶接式管継手１は、軸心Ｂを有する軸体２と、軸方向通路３と、一端が軸方向通路３に連通すると共に他端が軸体２の外周面に開口する径方向通路４とを有し、軸体２には、軸方向通路３に接続された流体管路、および径方向通路４に接続された他の流体管路が溶接される。軸体２のうち径方向通路４が開口する部位には、軸方向通路３に対して平行な平坦面５が設けられ、軸方向通路３の中心Ｃは、軸心Ｂに対して平坦面５から離れる方向に偏心している。これにより、軸体２に平坦面５を形成した場合でも、軸体２の外径寸法φＡを増大させることなく、軸体２の一側端面２Ｂおよび他側端面２Ｃに開口した軸方向通路３の周囲に、水素ガスの圧力に対応できるだけの十分な肉厚を確保することができる。【選択図】図３