公开(公告)号：US06431383B1

公开(公告)日：2002-08-13

申请号：US09723659

申请日：2000-11-28

Applicant: Robert M. Mozley ,  James M. Shivers

Inventor： Robert M. Mozley ,  James M. Shivers

IPC: B65D2500

CPC classification number: F16K17/1606 ,  Y10T137/1692 ,  Y10T137/1729 ,  Y10T137/1737 ,  Y10T137/1744 ,  Y10T137/1774

Abstract: An improved reverse rupture disc for use as a safety pressure relief device is provided. The disc is defined by an annular flat flange region, a concave-convex disc dome region and a transition region that joins the disc-shaped flat flange region to the concave-convex disc dome region. One or more deformations may be formed at or near the apex of the disc dome region for weakening the disc to the point that incidental damage to the disc will not weaken the disc any further, thereby ensuring that the disc will reverse at a certain pressure, and no lower. The disc may also formed with one or more irregular transition regions at the base of the disc and a partial circular groove in the transition region. The irregular transition region of the disc cooperates with a shear enhancing means such as a protrusion or notch formed in a support ring or disc holder disposed downstream of the disc to sever the disc dome from the annular flat flange region along the groove in the transition region. A back pressure support means extends over the transition region and potentially over the dome region to prevent vacuum and forward to reverse cyclical pressures in the convex direction from damaging or destroying the disc. An ungrooved region of the transition region acts as a hinge holding the ruptured disc dome to the flat flange region after the disc has ruptured. The ruptured disc dome hangs over an arcuate projection formed in the support ring or disc holder, which helps to prevent the disc from fragmenting.

Abstract translation: 提供了用作安全泄压装置的改进的反向破裂盘。 盘由环形的平坦凸缘区域，凹凸圆盘形圆顶区域和将盘形平坦凸缘区域连接到凹凸盘圆顶区域的过渡区域限定。 一个或多个变形可以形成在圆盘形圆顶区域的顶点处或附近，用于削弱盘，直到盘的附带损坏不会再削弱盘，从而确保盘将在一定压力下反转， 并没有降低。 盘也可以在盘的底部形成一个或多个不规则的过渡区域，并且在过渡区域中形成一个部分圆形凹槽。 盘的不规则过渡区域与剪切增强装置相配合，例如形成在位于盘的下游的支撑环或盘保持器中的突起或凹口，以沿着过渡区域中的凹槽切割圆盘与环形平坦凸缘区域 。 背压支撑装置在过渡区域上延伸并潜在地超过穹顶区域，以防止真空并向前反转以在凸方向上反转周期性压力，从而损坏或破坏盘。 过渡区域的未槽区域用作在盘破裂之后将破裂的圆盘圆顶保持在平坦凸缘区域上的铰链。 破裂的圆盘圆顶悬挂在形成在支撑环或盘保持器中的弓形突起上，这有助于防止盘破碎。

公开(公告)号：US06241113B1

公开(公告)日：2001-06-05

申请号：US09268413

申请日：1999-03-15

Applicant: Robert M. Mozley ,  James M. Shivers

Inventor： Robert M. Mozley ,  James M. Shivers

IPC: F16K1300

CPC classification number: F16K17/1606 ,  Y10T137/1692 ,  Y10T137/1729 ,  Y10T137/1737 ,  Y10T137/1744 ,  Y10T137/1774

Abstract: An improved reverse rupture disc for use as a safety pressure relief device is provided. The disc is defined by an annular flat flange region, a concave-convex disc dome region and a transition region that joins the disc-shaped flat flange region to the concave-convex disc dome region. One or more deformations may be formed at or near the apex of the disc dome region for weakening the disc to the point that incidental damage to the disc will not weaken the disc any further, thereby ensuring that the disc will reverse at a certain pressure, and no lower. The disc may also formed with one or more irregular transition regions at the base of the disc and a partial circular groove in the transition region. The irregular transition region of the disc cooperates with a shear enhancing means such as a protrusion or notch formed in a support ring or disc holder disposed downstream of the disc to sever the disc dome from the annular flat flange region along the groove in the transition region. A back pressure support means extends over the transition region and potentially over the dome region to prevent vacuum and forward to reverse cyclical pressures in the convex direction from damaging or destroying the disc. An ungrooved region of the transition region acts as a hinge holding the ruptured disc dome to the flat flange region after the disc has ruptured. The ruptured disc dome hangs over an arcuate projection formed in the support ring or disc holder, which helps to prevent the disc from fragmenting.

Abstract translation: 提供了用作安全泄压装置的改进的反向破裂盘。 盘由环形的平坦凸缘区域，凹凸圆盘形圆顶区域和将盘形平坦凸缘区域连接到凹凸盘圆顶区域的过渡区域限定。 一个或多个变形可以形成在圆盘形圆顶区域的顶点处或附近，用于削弱盘，直到盘的附带损坏不会再削弱盘，从而确保盘将在一定压力下反转， 并没有降低。 盘也可以在盘的底部形成一个或多个不规则的过渡区域，并且在过渡区域中形成一个部分圆形凹槽。 盘的不规则过渡区域与剪切增强装置相配合，例如形成在位于盘的下游的支撑环或盘保持器中的突起或凹口，以沿着过渡区域中的凹槽切割圆盘与环形平坦凸缘区域 。 背压支撑装置在过渡区域上延伸并潜在地超过穹顶区域，以防止真空并向前反转以在凸方向上反转周期性压力，从而损坏或破坏盘。 过渡区域的未槽区域用作在盘破裂之后将破裂的圆盘圆顶保持在平坦凸缘区域上的铰链。 破裂的圆盘圆顶悬挂在形成在支撑环或盘保持器中的弓形突起上，这有助于防止盘破碎。