US3601436A - Pressure vessel with shear pin construction - Google Patents

Pressure vessel with shear pin construction Download PDF

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Publication number
US3601436A
US3601436A US3601436DA US3601436A US 3601436 A US3601436 A US 3601436A US 3601436D A US3601436D A US 3601436DA US 3601436 A US3601436 A US 3601436A
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US
United States
Prior art keywords
vessel
interfaces
vessel portion
projecting members
portions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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English (en)
Inventor
Svend M Jorgensen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foster Wheeler Inc
Original Assignee
Foster Wheeler Inc
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Filing date
Publication date
Application filed by Foster Wheeler Inc filed Critical Foster Wheeler Inc
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Publication of US3601436A publication Critical patent/US3601436A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J12/00—Pressure vessels in general
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J13/00—Covers or similar closure members for pressure vessels in general
    • F16J13/02—Detachable closure members; Means for tightening closures
    • F16J13/12—Detachable closure members; Means for tightening closures attached by wedging action by means of screw-thread, interrupted screw-thread, bayonet closure, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
    • F16L25/0018—Abutment joints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/20—Clamps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7045—Interdigitated ends

Definitions

  • Naigur ABSTRACT A pressure vessel in which a pair of vessel memnets having meshing projections formed thereon are secured together by means of a plurality of shear pins disposed along the interface between the adjoining projections.
  • This invention relates to a pressure vessel, and, more particularly, to a pressure vessel in which two adjoining vessel components are fixed together in an improved manner.
  • Shear block and breech designs have also been suggested, but their use is restricted due to high rotary and bending moments which occur with respect to a groove which is machined in a counterbore formed in one of the units. In order to attempt to overcome these moments, cooperating threads have been provided on the two units.
  • severe machining difficulties are encountered in the threading due to the fact that the male and female threads are threaded from different type machines, and the small differences in thread pitch add up rapidly over a number of threads. This could result in most of the load being carried on a very few threads, thus causing very high stress concentratron.
  • the pressure vessel of the present invention comprises a first vessel portion having at least one open end, a second vessel portion engaging said first vessel portion at said open end, a plurality of projections extending from each of said vessel portions, the projecting members of said first vessel portion engaging the projecting members of said second vessel portion to define a plurality of interfaces between the adjacent projecting portions, and at least one radially extending smooth surfaced shear pin disposed along each of said interfaces.
  • FIG. 1 is a fragmentary perspective view showing a portion of a disassembled pressure vessel according to the present invention
  • FIG. 2 is a fragmentary horizontal cross-sectional view depicting the vessel of FIG. 1 in its assembled condition
  • FIG. 3 is a transverse cross-sectional view taken along the line 33 of FIG. 2;
  • FIG. 4 is a fragmentary front elevational view of the assembled pressure vessel of FIG. 2;
  • FIGS. 5 and 6 are views similar to FIGS. 3 and 4, respectively, but depicting another embodiment of the pressure vessel of the present invention.
  • FIG. 7 is a view similar to FIG. 1, but depicting still another embodiment of the present invention.
  • FIG. 8 is a perspective view, depicting the pressure vessel of FIG. 7 in its assembled condition.
  • FIG. 9 is a transverse cross-sectional view taken along the line 9-9 of FIG. 8.
  • the reference numeral 10 refers to the upper portion of a cylindrical vessel which is adapted to receive a closure plug 12 to close the vessel.
  • a plurality of axially extending projections 14 extend from the upper portion of the vessel 10 and are adapted to cooperate with a plurality of radially extending projections 16 formed in the outer circumference of the closure plug 12 so that when the latter is inserted in the upper portion of the vessel, the respective fingers will mesh, as shown in FIG. 2.
  • an interface 18 is defined between each pair of adjoining fingers l4 and 16, and, as will be apparent from FIGS. 3 and 4, a plurality of radially extending, smooth surfaced shear pins 20 are disposed in corresponding bores which are drilled along the interfaces 18 after insertion of the plug 12.
  • the pins 20 are spaced to extend for substantially the entire axial portion of the meshing projections, and extend outwardly from the outer surface of the vessel to facilitate their removal.
  • a circular gasket 22 is shown in FIG. 3 and is utilized to provide a seal between the plug 12 and the cylinder 10.
  • FIGS. 5 and 6 The embodiment of FIGS. 5 and 6 is identical to that of FIGS. 1-4 with the exception that the pins, and therefore their corresponding bores, are of a varying diameter.
  • the pins, and therefore their corresponding bores, are of a varying diameter.
  • three pins 24 are shown by means of example, with the uppermost pin as viewed in FIGS. 5 and 6, being of a larger diameter, the middle pin being of an intermediate diameter, and the lower pin being of a smaller diameter.
  • FIGS. 7-9 shows the principles of the previous embodiments when applied to a joint between two shell portions which together form a cylindrical vessel.
  • a pair of shell portions 30 and 32 are shown in a disassembled condition in FIG. 7 with their respective end portions having a plurality of spaced projections 34 and 36, respectively, extending around their circumference and outwardly therefrom.
  • these projections 34 and 36 may be machined from a forged vessel and thereby be integral with their respective shell portions, or they may be attached in any known manner, such as by welding.
  • the projections 34 and 36 are adapted to mesh when the shell portions 30 and 32 are brought into abutment as viewed in FIG. 8, to thus define a plurality of interfaces 38 between each paid of adjoining projections 34 and 36.
  • a plurality of radially extending bores are formed along the interfaces 38 to accommodate a plurality of radially extending, smooth surfaced shear pins 40.
  • An end of each of the pins 40 may extend upwardly from the outer surface of the projections 34 and 36, as viewed in FIG. 9.
  • pins in the embodiment of FIGS. 7-9 may vary in diameter along each interface, as in the embodiment of FIGS. and 6.
  • the radially extending plugs of the present invention distributes the load created by the internal pressure in the vessels evenly across the walls thereof and eliminates the need for heavy end forgings, or the like.
  • the smooth surfaced shear pins are easily removable from their respective bores and thus enables the abutting components of the vessel to be quickly assembled and disassembled.
  • a pressure vessel comprising a first cylindrical vessel portion having at least one open end, a second cylindrical vessel portion engaging said first vessel portion at said open end, a plurality of projections extending from each of said vessel portions, the projecting members of said first vessel portion engaging the projecting members of said second vessel portion to define a plurality of interfaces between the adjacent projecting portions, and at least one smooth surfaced shear pin disposed along each of said interfaces and extending radially with respect to said vessel.
  • each of said vessel portions is in the form of a cylindrical shell.
  • a cylindrical pressure vessel comprising a first vessel portion having at least one open end, a second vessel portion engaging said first vessel portion at said open end, a plurality of projections extending from each of said vessel portions, the projecting members of said first vessel portion engaging the projecting members of said second vessel portion to define a plurality of interfaces between the adjacent projecting portions, and at least one radially extending shear pin disposed along each of said interfaces.
  • each shear pin being of substantially the same diameter.
  • each of said shear pins extends outwardly from an outer surface defined by said ro'ections.
  • first vessel portion is in the form of a hollow cylinder
  • second vessel portion is in the form of a closure for said cylinder
  • each of said vessel portions is in the form of a cylindrical shell.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US3601436D 1969-07-15 1969-07-15 Pressure vessel with shear pin construction Expired - Lifetime US3601436A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84171369A 1969-07-15 1969-07-15

Publications (1)

Publication Number Publication Date
US3601436A true US3601436A (en) 1971-08-24

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ID=25285527

Family Applications (1)

Application Number Title Priority Date Filing Date
US3601436D Expired - Lifetime US3601436A (en) 1969-07-15 1969-07-15 Pressure vessel with shear pin construction

Country Status (4)

Country Link
US (1) US3601436A (enrdf_load_stackoverflow)
JP (1) JPS5018209B1 (enrdf_load_stackoverflow)
FR (1) FR2055033A5 (enrdf_load_stackoverflow)
GB (1) GB1295179A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2425506A1 (fr) * 1978-05-12 1979-12-07 Schmidt Paul Systeme de commande par soupapes pour appareils de forage par percussions pneumatiques
US4244482A (en) * 1976-03-30 1981-01-13 Fried, Krupp Gesellschaft Mit Beschrankter Haftung Multi-layer container
US4478340A (en) * 1982-04-26 1984-10-23 American Hoist & Derrick Company Swing bearing quick removal system
US20120091669A1 (en) * 2010-06-03 2012-04-19 Lee Byung-Chil O-ring for feed roller

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0586195U (ja) * 1992-04-15 1993-11-19 アルプス電気株式会社 カセットテ−プ駆動装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398853A (en) * 1966-04-13 1968-08-27 Foster Wheeler Corp Shear stud vessel closures and shell joints
US3451585A (en) * 1968-02-15 1969-06-24 Foster Wheeler Corp Shear stud vessel closures and shell joints
US3464581A (en) * 1968-03-07 1969-09-02 Foster Wheeler Corp Multi-layer pressure vessel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398853A (en) * 1966-04-13 1968-08-27 Foster Wheeler Corp Shear stud vessel closures and shell joints
US3451585A (en) * 1968-02-15 1969-06-24 Foster Wheeler Corp Shear stud vessel closures and shell joints
US3464581A (en) * 1968-03-07 1969-09-02 Foster Wheeler Corp Multi-layer pressure vessel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244482A (en) * 1976-03-30 1981-01-13 Fried, Krupp Gesellschaft Mit Beschrankter Haftung Multi-layer container
FR2425506A1 (fr) * 1978-05-12 1979-12-07 Schmidt Paul Systeme de commande par soupapes pour appareils de forage par percussions pneumatiques
US4478340A (en) * 1982-04-26 1984-10-23 American Hoist & Derrick Company Swing bearing quick removal system
US20120091669A1 (en) * 2010-06-03 2012-04-19 Lee Byung-Chil O-ring for feed roller
US8894071B2 (en) * 2010-06-03 2014-11-25 Byung-chil Lee O-ring for feed roller

Also Published As

Publication number Publication date
FR2055033A5 (enrdf_load_stackoverflow) 1971-05-07
JPS5018209B1 (enrdf_load_stackoverflow) 1975-06-27
GB1295179A (enrdf_load_stackoverflow) 1972-11-01

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