Rupture disk assembly
First Claim
1. A pressure relief assembly, comprising:
- an inlet support member defining an inlet bore for conducting a pressurized fluid;
an outlet support member defining an outlet bore for relieving the pressurized fluid;
a rupture disk having a rupturable portion including a convex surface and a corresponding concave surface defining a dome area and a flange for sealing engagement between the inlet and outlet support members to align the concave surface with the outlet bore and the convex surface with the inlet bore, the rupturable portion including a score line having a first and a second end, the score line creating a line of weakness along which the rupturable portion will tear when the pressurized fluid exceeds a predetermined level; and
a safety member disposed between the rupture disk and the outlet support member, the safety member including a flange and a hinge having a knuckle extending downwardly into the dome area and extending laterally across the dome area to an outer edge comprising three segments, wherein at least two of the segments are substantially linear, each of the segments are joined at an angle relative to the adjoining segment, and at least one of the segments is positioned inside the area circumscribed by the score line or inside the area circumscribed by an arc connecting the two ends of the score line, the hinge further including a tongue extending from the knuckle into the outlet bore in a direction generally perpendicular to the flange of the safety member.
3 Assignments
0 Petitions
Accused Products
Abstract
An improved rupture disk assembly for a pressure relief system is disclosed. The rupture disk assembly is sealed between an inlet support member and an outlet support member, each of which define a central fluid pathway. A rupture disk that includes a flange connected to a dome-shaped rupturable portion by a transition area is sealed between the support members. The rupturable portion may include an indentation positioned at the apex of the dome and a score line having a first and a second end. A safety member that has a hinge including a knuckle and a tongue is positioned between the rupture disk and the outlet support member. The knuckle extends downwardly into the dome and extends laterally across the dome to a point that is inside the area circumscribed by the score line or inside the area circumscribed by an arc connecting the two ends of the score line. The rupture disk assembly of the present invention provides a low flow resistance Kr in both gas and liquid applications, a low damage safety ratio, and a high operating capacity.
62 Citations
56 Claims
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1. A pressure relief assembly, comprising:
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an inlet support member defining an inlet bore for conducting a pressurized fluid;
an outlet support member defining an outlet bore for relieving the pressurized fluid;
a rupture disk having a rupturable portion including a convex surface and a corresponding concave surface defining a dome area and a flange for sealing engagement between the inlet and outlet support members to align the concave surface with the outlet bore and the convex surface with the inlet bore, the rupturable portion including a score line having a first and a second end, the score line creating a line of weakness along which the rupturable portion will tear when the pressurized fluid exceeds a predetermined level; and
a safety member disposed between the rupture disk and the outlet support member, the safety member including a flange and a hinge having a knuckle extending downwardly into the dome area and extending laterally across the dome area to an outer edge comprising three segments, wherein at least two of the segments are substantially linear, each of the segments are joined at an angle relative to the adjoining segment, and at least one of the segments is positioned inside the area circumscribed by the score line or inside the area circumscribed by an arc connecting the two ends of the score line, the hinge further including a tongue extending from the knuckle into the outlet bore in a direction generally perpendicular to the flange of the safety member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A rupture disk assembly to be sealed in a pressurized system, comprising:
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a rupture disk having a dome-shaped rupturable portion including a convex surface and a corresponding concave surface forming a dome area, the rupturable portion having a score line creating a line of weakness along which the rupturable portion will tear when the rupturable portion of the rupture disk is exposed to a fluid above a predetermined pressure; and
a safety member disposed adjacent the concave surface of the rupture disk, the safety member including a flange and a hinge, the hinge having a knuckle extending downwardly into the dome area and extending laterally across the dome area to an outer edge comprising three segments, wherein at least two of the segments are substantially linear, each of the segments are joined at an angle relative to the adjoining segment, and at least one of the segments is positioned inside the area circumscribed by the score line, the hinge further including a tongue extending from the knuckle and into the outlet bore in a direction generally perpendicular to the flange of the safety member. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A rupture disk assembly to be sealed in a pressurized system, comprising:
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a rupture disk having a dome-shaped rupturable portion including a convex surface and a corresponding concave surface forming a dome area, the rupturable portion including a score line having a first and a second end, the score line creating a line of weakness along which the rupturable portion will tear when the rupturable portion of the rupture disk is exposed to a fluid above a predetermined pressure; and
a safety member disposed adjacent the concave surface of the rupture disk and including a flange and a hinge, the hinge having a knuckle extending downwardly into the dome area and extending laterally across the dome area to a point that is inside the area circumscribed by the score line or inside an arc connecting the two ends of the score line, the hinge further including a first pocket adjacent to the first end of the score line and a second pocket adjacent to the second end of the score line, the first and second pockets configured to contact the area of the rupturable portion adjacent the respective ends of the score line when the rupture disk ruptures. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. A rupture disk assembly to be sealed between an inlet support member having an inlet bore and an outlet support member having an outlet bore, comprising:
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a rupture disk having a dome-shaped rupturable portion including a convex surface and a corresponding concave surface forming a dome area and line of weakness having a first and a second end, the rupture disk tearing along the line of weakness when the rupture disk is exposed to a fluid above a predetermined pressure; and
a safety member disposed adjacent the concave surface of the rupture disk, the safety member including a flange and a hinge, the hinge having a knuckle extending downwardly into the dome area and extending laterally across the dome area to an outer edge comprising three segments, wherein at least two of the segments are substantially linear, each of the segments are joined at an angle relative to the adjoining segment, and at least one of the segments is positioned inside the area circumscribed by the line of weakness or inside the area circumscribed by an arc connecting the two ends of the line of weakness, the hinge further including a tongue extending away from the knuckle and into the outlet bore. - View Dependent Claims (32, 33, 34)
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35. A rupture disk assembly to be sealed between an inlet support member having an inlet bore and an outlet support member having an outlet bore, comprising:
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a rupture disk having a dome-shaped rupturable portion including a convex surface and a corresponding concave surface forming a dome area, the rupturable portion having a score line having a first and second end, the score line creating a line of weakness along which the rupturable portion will tear when the rupturable portion of the rupture disk is exposed to a fluid above a predetermined pressure; and
a safety member disposed adjacent the concave surface of the rupture disk, the safety member including a flange and a hinge, the hinge having a knuckle extending downwardly into the dome area and extending laterally across the dome area to an outer edge comprising three segments, wherein at least two of the segments are substantially linear, each of the segments are joined at an angle relative to the adjoining segment, and at least one of the segments is positioned inside, but directly adjacent to, the area circumscribed by the score line or the area circumscribed by an arc connecting the two ends of the score line, the hinge further including a tongue extending away from the knuckle and into the outlet bore in a direction generally perpendicular to the flange of the safety member. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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44. A rupture disk assembly to be sealed between an outlet support member having an outlet bore and a pressurized system, comprising:
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a rupture disk having a dome-shaped rupturable portion including a convex surface and a corresponding concave surface forming a dome area, the rupturable portion having a score line having a first and second end, the score line creating a line of weakness along which the rupturable portion will tear when the rupturable portion of the rupture disk is exposed to a fluid above a predetermined pressure; and
a safety member disposed adjacent the concave surface of the rupture disk, the safety member including a flange and a hinge, the hinge having a knuckle extending downwardly into the dome area and extending laterally across the dome area and a tongue extending away from the knuckle and into the outlet bore in a direction generally perpendicular to the flange of the safety member, the hinge further including a tongue support projecting from the tongue to a point adjacent the outlet support member. - View Dependent Claims (45, 46, 47, 48, 49, 50)
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51. A rupture disk assembly to be sealed in a pressurized system, comprising:
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a rupture disk having a dome-shaped rupturable portion including a convex surface and a corresponding concave surface forming a dome area, the rupturable portion having an indentation formed at the apex of the dome shape, the rupture disk further including a score line with a first and a second end, the score line creating a line of weakness along which the material of the rupture disk will tear when the rupture disk is exposed to a fluid above a predetermined pressure; and
a safety member disposed adjacent the concave surface of the rupture disk, the safety member including a flange and a hinge, the hinge having a knuckle extending downwardly into the dome area and extending laterally across the dome area to an outer edge comprising three segments, wherein at least two of the segments are substantially linear, each of the segments are joined at an angle relative to the adjoining segment, and at least one of the segments is positioned inside the area circumscribed by the score line or inside the area circumscribed by an arc connecting the two ends of the score line, the hinge further including a tongue extending from the knuckle and into the outlet bore in a direction generally perpendicular to the flange of the safety member. - View Dependent Claims (52, 53, 54, 55, 56)
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Specification