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A new flange shearing bolted connection for high pressure end closure was presented in this paper. The section of new shearing bolts was designed in D-shape which was different from one of the traditional shearing bolts and plate shearing bolts. All shearing bolts were positioned within the top flange or the head, and the connection or disconnection of the flange and the head could be achieved by only turning the shearing bolts at an angle of 90°. Thus, it was very convenient to assembly and disassembly the... A new flange shearing bolted connection for high pressure end closure was presented in this paper. The section of new shearing bolts was designed in D-shape which was different from one of the traditional shearing bolts and plate shearing bolts. All shearing bolts were positioned within the top flange or the head, and the connection or disconnection of the flange and the head could be achieved by only turning the shearing bolts at an angle of 90°. Thus, it was very convenient to assembly and disassembly the head, greatly simplifying the maintenance of high pressure vessels. Owing to many advantages, the connection could be used as end closures in various pressure vessels. 提出一种高压密封抗剪螺栓联接新技术。与现有的一般轴向抗剪螺栓和扁平螺栓焊接结构不同的是 ,新型螺栓截面形状采用D形 ,装拆顶盖时无需将D形螺栓单独卸下 ,只需将其旋转 90°即可 ,大大节省了装拆时间 ,降低了装拆难度。由于具有许多优点 ,该技术可应用于各种压力容器端盖密封装置 Considering of these problems such as heavy structure and inconvenient assembly for the existing head sealing structures of high-pressure vessels, a new type of quick-opening and high-pressure sealing structure was proposed. In the new structure, the head is put into and flushed mounting with the end flange, using self-energizing C ring as the sealing component. The head and the end flange are connected with D-shape shearing bolts, and the connection or disconnection of the head with the end flange can be achieved... Considering of these problems such as heavy structure and inconvenient assembly for the existing head sealing structures of high-pressure vessels, a new type of quick-opening and high-pressure sealing structure was proposed. In the new structure, the head is put into and flushed mounting with the end flange, using self-energizing C ring as the sealing component. The head and the end flange are connected with D-shape shearing bolts, and the connection or disconnection of the head with the end flange can be achieved by turning the D-shape shearing bolts about an angle of 90°, making the structure being easy in assembly and disassembly, light in weight and not easily seized in screw. Strength analysis and stress limitation for the key parts were performed, which can supply a theoretical source in design for its engineering application. This structure is suitable for head sealing of high-pressure and ultrahigh pressure vessels, which need frequently assembly and disassembly. 针对现有高压容器顶盖密封结构存在的结构笨重、装拆不便等问题,设计了一种新型快开式高压容器顶盖密封结构。将顶盖置于端部法兰内部并平齐,由D形抗剪螺栓连接二者,采用具有自紧作用的C形环作密封元件。只需将D形螺栓旋转大约90°,即可实现顶盖与端部法兰的装拆,具有装拆迅速、质量轻、螺纹不易“咬死”等特点。本文对该密封结构的关键部件进行了强度分析,可为其工程应用在设计上提供理论依据。该结构在需要频繁装拆的各种高压、超高压容器的密封装置上应用前景广大。 In this paper, a new high pressure sealing structure connected by D-shape bolts was compared with the traditional sealing structures, such as double-cone seal and Cachaly seal, in aspects of structure, manufacture, reliability and weight. Being compact in structure, light in weight, simple in manufacture, reliable in seal and easy in assembly and disassembly, this new structure connected by D-shape Bolts is an ideal high-pressure sealing structure for high-pressure vessels and piping, especially for those which... In this paper, a new high pressure sealing structure connected by D-shape bolts was compared with the traditional sealing structures, such as double-cone seal and Cachaly seal, in aspects of structure, manufacture, reliability and weight. Being compact in structure, light in weight, simple in manufacture, reliable in seal and easy in assembly and disassembly, this new structure connected by D-shape Bolts is an ideal high-pressure sealing structure for high-pressure vessels and piping, especially for those which need to be frequently assembled and disassembled. 通过将D形螺栓联接的高压密封与传统的双锥密封、卡扎里密封在结构、加工、密封可靠性、重量等方面进行对比,说明D形螺栓联接的高压密封结构具有结构紧凑、重量轻、加工简单、密封可靠、拆装方便等优点,是较为理想的高压密封装置,适用于经常装卸的高压设备和管道。
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