Direct injection connecting pipe of reactor pressure vessel

• Main Authors: DUAN YUANGANG, YANG JINGCHAO, CHEN LIAN, RAN XIAOBING, HU DAFEN, LIU YANWU, WU HANZHU
• Format: Patent
• Language: Chinese; English
• Published: 19.12.2023
• Subjects: NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS

The invention provides a reactor pressure vessel direct injection connecting pipe, which comprises a connecting pipe, the connecting pipe is hollow and is provided with a first flow channel and a second flow channel, the second flow channel is a straight flow channel, and the inner diameter of the first flow channel is gradually enlarged from one end connected with the second flow channel to one end far away from the second flow channel; the end part sleeve part sleeves the end part, far away from the second flow channel, of the first flow channel and is provided with an injection hole for communicating the inner cavity of the connecting pipe with the outside; and the flow limiting control structure comprises a sealing piece and an elastic piece, and the elastic piece is used for pushing the sealing piece to enable the sealing piece to block the first flow channel. Compared with the prior art, the reactor pressure vessel is directly injected into the connecting pipe, the second flow channel is the straight fl