US 12,435,840 B2
Pressure vessel capable of releasing pressure
Xianji Lai, Quzhou (CN); and Yizhong Chen, Quzhou (CN)
Assigned to ZHEJIANG DONGCHENG PRINTING CO., LTD., Quzhou (CN)
Filed by ZHEJIANG DONGCHENG PRINTING CO., LTD., Quzhou (CN)
Filed on Nov. 16, 2023, as Appl. No. 18/510,675.
Application 18/510,675 is a continuation of application No. PCT/CN2023/104404, filed on Jun. 30, 2023.
Claims priority of application No. 202310648358.4 (CN), filed on Jun. 2, 2023.
Prior Publication US 2024/0401752 A1, Dec. 5, 2024
Int. Cl. F17C 13/12 (2006.01)
CPC F17C 13/12 (2013.01) [F17C 2201/0109 (2013.01); F17C 2201/0114 (2013.01); F17C 2260/042 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A pressure vessel capable of releasing pressure, wherein the pressure vessel comprises a dome portion and a side wall portion connected with the dome portion, and a concave bottom in seaming connection with a bottom of the side wall portion; a pressure release port is provided at a top of the dome portion; the side wall portion is cylindrical; a lower edge of the side wall portion is tightly attached to an outer edge of the concave bottom, and they both are curled outward and hermetically connected; the concave bottom comprises a circular bottom surface in the center and an inclined connecting surface, and a pressure relief notch groove is provided on an outer side of the circular bottom surface;
dimensions of the pressure vessel satisfy: k1=[2, 5], k2=[2, 4], k3=[0.5, 0.75], k4=[4, 20];

OG Complex Work Unit Math
the dome portion has a height of a1, and a value range of a1 is [5 mm, 40 mm];
the side wall portion has a height of a2, and a value range of a2 is [50 mm, 300 mm];
the circular bottom surface has a diameter of a3, and a value range of a3 is [3 mm, 60 mm];
the inclined connecting surface has a maximum diameter of a4, and a value range of a4 is [30 mm, 125 mm];
the side wall portion has a diameter of a5, and a value range of a5 is [35 mm, 130 mm];
a distance between the circular bottom surface and a bottommost surface of the pressure vessel is a6, and a value range of a6 is [2 mm, 30 mm];
the pressure relief notch groove has a total length of a7, and a value range of a7 is [1.5 mm, 45 mm];
the side wall portion has a thickness of b1, and a value range of b1 is [0.18 mm, 0.38 mm]; and
the concave bottom has a thickness of b2, and a value range of b2 is [0.3 mm, 0.8 mm].