青龍管業(002457.SZ):獲得“預應力超高性能混凝土壓力管”實用新型專利證書
格隆匯 8 月 10日丨青龍管業(002457.SZ)發佈公告,近日,寧夏青龍管業集團股份有限公司收到中華人民共和國國家知識產權局頒發的實用新型專利證書。具體情況如下:
實用新型名稱:預應力超高性能混凝土壓力管
證書號:第10880551號
專利號:ZL201921252072.X
專利類型:實用新型
專利申請日:2019年08月03日
授權公告日:2020年6月30日
授權公告號:CN210890420U
有效期:十年(自專利申請日起算)
專利權人:寧夏青龍管業股份有限公司
本實用新型涉及輸水管技術領域,尤其是涉及一種預應力超高性能混凝土壓力管,包括管芯、螺旋纏繞在所述管芯外壁上以對所述管芯施加環向預壓應力的中強度螺紋鋼筋、澆築在所述管芯外部的保護層、以及分別設置在所述管芯軸向端部的承口鋼環和插口鋼環,所述管芯和所述保護層均由超高性能混凝土澆築而成。本實用新型的優點是應用超高性能混凝土預應力技術,大幅減小了管道壁厚減輕管道自重,為管道的運輸和安裝帶來了極大方便,同時提高了管芯、螺紋鋼筋和保護層的結合程度,使管道結構整體性得到加強,管道耐久性得以大幅提升。
本實用新型專利的取得為增加公司市場競爭力起到了積極的作用。
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