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公开(公告)号：US20190025153A1
公开(公告)日：2019-01-24
申请号：US15756066
申请日：2016-07-26
申请人： BAOYI GROUP CO. LTD.
发明人： Changxiang XU , Xiaozhong ZHANG , Xiaoqiu ZHANG
IPC分类号： G01M3/32
摘要： A sealing tightness measuring device and a pressure-retaining capability measuring gauge for a pressure container or system is provided. A pressure is produced against the testing fluid inside a piston cylinder communicated with the tested container or system by an assembly including a weight, a piston, and a piston cylinder successively arranged through a coaxial plumb bob. An equation RL=pt/C is used to represent the sealing tightness of the pressure container or system. The equation pt=p(p−0.5Δp)Δt/Δp is used in the pressure-retaining capability measuring gauge to express the pressure-retaining capability, wherein p is the fixed testing fluid pressure, t is the elapsed time for the fluid to leak completely, C is the volume of the pressure container or system, Δp is the drop value of the pressure, and Δt is the elapsed time for the pressure to descend from p to (p−Δp) caused by the leakage.
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公开(公告)号：US11543053B2
公开(公告)日：2023-01-03
申请号：US16190184
申请日：2018-11-14
发明人： Changxiang Xu , Xiaozhong Zhang
IPC分类号： F16K41/04 , F16J15/16 , F16K5/06 , F16J15/18 , F16J15/24 , F16K41/02 , F16J15/20 , F16K41/06 , F16J15/3284
摘要： A pressure-tight stem cylinder seal and a self-energizing stem shoulder seal matching the stem cylinder seal that both use an equilaterally triangular soft ring as their sealing element, wherein their designing rules are first, by means of wedging function of a hard gland coaxial with the stem cylinder, to convert their original axial tightening force 2f respectively into a radial compression force 4f/√3 of their soft ring 04 on the stem 02 cylinder and another radial compression force 2f of their soft ring 06 on the stem 02 shoulder and ensure that the two soft rings are so compressed from a great room to a small room as to be able to pass a pressure or stress exactly to each different direction, then to cut off their off-stem corners to give their cavities an opening or give each soft ring an axial compressing allowance, and last, by means of anti-extrusion metallic C-rings without axial resistance, to close each opening to provide a full support for the sealing deformation of their soft rings compressed in their cavities.
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公开(公告)号：US20220018462A1
公开(公告)日：2022-01-20
申请号：US16190184
申请日：2018-11-14
发明人： Changxiang Xu , Xiaozhong Zhang
摘要： A pressure-tight stem cylinder seal and a self-energizing stem shoulder seal matching the stem cylinder seal that both use an equilaterally triangular soft ring as their sealing element, wherein their designing rules are first, by means of wedging function of a hard gland coaxial with the stem cylinder, to convert their original axial tightening force 2f respectively into a radial compression force 4f/√3 of their soft ring 04 on the stem 02 cylinder and another radial compression force 2f of their soft ring 06 on the stem 02 shoulder and ensure that the two soft rings are so compressed from a great room to a small room as to be able to pass a pressure or stress exactly to each different direction, then to cut off their off-stem corners to give their cavities an opening or give each soft ring an axial compressing allowance, and last, by means of anti-extrusion metallic C-rings without axial resistance, to close each opening to provide a full support for the sealing deformation of their soft rings compressed in their cavities.
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公开(公告)号：US11841092B2
公开(公告)日：2023-12-12
申请号：US17961560
申请日：2022-10-07
发明人： Changxiang Xu , Xiaozhong Zhang
IPC分类号： F16K41/04 , F16J15/16 , F16K5/06 , F16J15/18 , F16J15/24 , F16K41/02 , F16J15/20 , F16K41/06 , F16J15/3284
CPC分类号： F16K41/046 , F16J15/166 , F16J15/186 , F16J15/20 , F16J15/24 , F16K5/0689 , F16K5/0694 , F16K41/026 , F16K41/06 , F16J15/3284
摘要： A pressure-tight stein cylinder seal and a self-energizing stein shoulder seal matching the stein cylinder seal that both use an equilaterally triangular soft ring as their sealing element, wherein their designing rules are first, by means of wedging function of a hard gland coaxial with the stein cylinder, to convert their original axial tightening force 2f respectively into a radial compression force 4f/√3 of their soft ring 04 on the stein 02 cylinder and another radial compression force 2f of their soft ring 06 on the stein 02 shoulder and ensure that the two soft rings are so compressed from a great room to a small room as to be able to pass a pressure or stress exactly to each different direction, then to cut off their off-stein corners to give their cavities an opening or give each soft ring an axial compressing allowance, and last, by means of anti-extrusion metallic C-rings without axial resistance, to close each opening to provide a full support for the sealing deformation of their soft rings compressed in their cavities.
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公开(公告)号：US10996133B2
公开(公告)日：2021-05-04
申请号：US15756066
申请日：2016-07-26
申请人： BAOYI GROUP CO. LTD.
发明人： Changxiang Xu , Xiaozhong Zhang , Xiaoqiu Zhang
摘要： A tightness-gauging device and a meter for gauging a pressure's sustainability pt for a pressure vessel or system are provided. A pressure is produced against the test fluid inside a piston cylinder communicated with the tested vessel or system by a fixed-pressure supplying assembly including a weight, a piston, and a piston cylinder successively arranged coaxially and vertically. An equation RL=pt/C is used to represent the tightness of the pressure vessel or system. The equation pt=p(p−0.5Δp)Δt/Δp is used in the meter for gauging the pressure's sustainability pt to express the pressure's sustainability, where p is the fixed test pressure, t is the elapsed time for the fluid to leak completely, C is the cubage of the pressure vessel or system, Δp is the drop value of the pressure, and Δt is the elapsed time for the pressure to descend from p to (p−Δp) caused by the leakage.
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