US3690505A - Device for sealingly closing a metal pressure vessel - Google Patents

Device for sealingly closing a metal pressure vessel Download PDF

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Publication number
US3690505A
US3690505A US78667A US3690505DA US3690505A US 3690505 A US3690505 A US 3690505A US 78667 A US78667 A US 78667A US 3690505D A US3690505D A US 3690505DA US 3690505 A US3690505 A US 3690505A
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US
United States
Prior art keywords
cover
vessel
support
pressure vessel
ring
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
Application number
US78667A
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English (en)
Inventor
Willem Schoonman
Djin Kian Oey
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.)
Lummus Nederland NV
Original Assignee
Lummus Nederland NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lummus Nederland NV filed Critical Lummus Nederland NV
Application granted granted Critical
Publication of US3690505A publication Critical patent/US3690505A/en
Anticipated expiration legal-status Critical
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
    • B01J3/03—Pressure vessels, or vacuum vessels, having closure members or seals specially adapted therefor
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements

Definitions

  • ABSTRACT constituted by a subdivided annular member partially received in a circumferential recess in the wall of the vessel and an annular inner locking member within the subdivided member and detachably secured to the cover.
  • the invention relates to a device for sealingly closing a metal pressure vessel, and particularly an end chamber of a heat exchanger, by means of a metal cover.
  • the cover is connected to an end flange of the shell by means of bolts, and a packing ring is enclosed between the cover and the end flange.
  • the device according to the invention is characterized in that the cover is countersunk in the pressure vessel and rests on its side remote from the pressure space against a support means, which is subdivided around its periphery into a plurality of support elements, which protrude into a circumferential internal recess in the wall of the pressure vessel; the support elements are locked in the recess by a detachable locking means, while a circumferential metal sealing member is welded to the pressure vessel, as well as to the cover on the side thereof facing the support means.
  • a metal sealing member is employed, which is connected by means of welding to the pressure vessel as well as to the cover.
  • the cover may be easily dismounted.
  • the locking means and the support means are removed, whereafter the sealing member is cut through by means of grinding or burning.
  • the support means consists of a subdivided support ring, while the locking means consists of a locking ring, which fits within said support ring and is connected to said cover by means of bolts.
  • the outer wall of the cover may be provided with a recessed circumferential portion, which, together with the pressure vessel and the support means, defines an annular chamber and the metal sealing member consists of a hollow semi-toroidal ring which opens toward the wall of the pressure vessel and is received in said chamber.
  • FIG. 1 is a schematic front view, partially in section, of an embodiment of a heat exchanger, wherein the channels are sealingly closed by means of a device according to the invention
  • FIG. 2 is a section taken along the line IIII in FIG. 1 on a larger scale
  • FIG. 3 is a plan view of a support ring composed of a plurality of support elements
  • FIG. 4 is a plan view of a locking ring.
  • FIG. 1 schematically shows a heat exchanger comprising a cylindrical metal shell 1 and two tube plates 2. Between these two tube plates 2 there extend a plurality of tubes 3 which open at either end into an end chamber or channel 4. Inlets and outlets 5 are provided for counterflow of fluids, and a heat exchange takes place between the fluids in their passage between their respective inlets and outlets. The directions of flow of these fluids are schematically indicated in FIG. 1 by means of arrows.
  • Each channel 4 isclosed by means of a metal cover 6, which is recessed or countersunk in the channel 4 and which is retained in the vessel at its side remote from the pressure space by a support ring 7.
  • the ring 7 is subdivided around its circumference into support elements 7 as seen in FIG. 3.
  • the support ring 7 is partly received in an annularinternal recess 8 in the wall of the shell 1 and is locked in the recess 8 by means of a locking ring 9.
  • the locking ring 9 has a plurality of axial bores 10 therein and threaded studs 11 extend through the bores 10 and are screwed into the cover 6 and are locked thereto by means of nuts 11.
  • An annular metal sealing member 12 consisting of a hollow semi-toroidal ring, which opens toward the shell 1, is welded to the shell 1, as well as to the side of the cover 6 facing the support ring 7.
  • the outer wall 13 of the cover 6 remote from the pressure channel 4 is provided with a recessed circumferential portion 14, which, together with the shell 1 and the support ring 7, defines an annular chamber for receiving the sealing member 12.
  • the outer wall 13 of the cover 6 is further provided with an annular shoulder 15, which adjoins the recessed circumferential portion 14 and which surrounds an outwardly protruding central portion 16 of the cover 6.
  • the locking ring 9 fits around this central portion 16 and rests, together with a foot 17 of the support ring 7, against the shoulder 15.
  • the semi-toroidal sealing member 12 is first welded to the cover 6, whereafter the cover 6 is slid into the shell 1 until the inner surface 18 of the cover 6 abuts against an inner shoulder 19 of the shell 1. In this position of the cover 6, the outer end portion of the semi-toroidal sealing member 12 is welded to the shell 1.
  • the support elements 7 of the support ring 7 are successively brought into engagement with the internal recess 8 in the wall of the shell 1, in which position their feet 17 rest on the shoulder 15 of the cover 6.
  • the locking ring 9 is mounted around the central portion 16 of the cover 6. This locking ring 9 closely fits within the support ring 7 and is connected to the cover 6 by means of the studs 11 and the nuts 11'.
  • the cover 6 is subjected to the internal pressure in the channel 4. This load is taken up by the support ring 7, which is maintained in its correct position by the locking ring 9.
  • the locking ring 9 is removed first, for which purpose the nuts 11' have to be unscrewed.
  • the locking ring 9 is not only provided with axial bores for the studs 1 l, but also with a plurality of internally threaded axial holes into which bolts may be screwed, which will abut against the cover 6 so as to loosen the locking ring 9.
  • the shell 1 is provided with transversely directed cross bores 21, which open into the recess 8.
  • the number of these cross bores 21 corresponds to the number of the support elements 7 of the support ring 7.
  • These support elements 7' are positioned in the recess 8 in such manner that the center of each element is in approximate alignment with an associated cross bore 21.
  • several support elements 7 have side walls, which are parallel with the associated cross bore 21. In the embodiment shown in FIG. 3, the elements 7 on the left-hand side and on the right-hand side are shaped in this manner.
  • Pins may be inserted in the cross bores 21 of the shell 1 in order to loosen the support elements 7 of the support ring 7 successively from the recess 8.
  • the cover 6 may be removed from the shell 1. In this manner the channel 4 is easily accessible.
  • a device for sealingly closing a metal pressure vessel comprising a metal cover supported in the pressure vessel, a support means retaining the cover in said vessel, said support means comprising an annular member subdivided into a plurality of support elements, said vessel having a circumferential internal recess partially the latter facing the support means.
  • a device wherein the pressure vessel is cylindrical, said annular member being a subdivided support ring, said locking means comprising a locking ring which fits within said support ring and which is provided with a plurality of axial bores and a plurality of internally threaded axial holes, said detachable locking means comprising threaded fasteners engageable in threaded holes in said cover throu said axial bores in said lockin ring.
  • said pressure vessel is provided with transverse bores which open into said internal recess and which are each substantially centrally aligned with a respective support element in said internal recess, a plurality of said support elements having side walls which are parallel with the associated transverse bore.
  • a device according to claim 1 wherein said semitoroidal ring faces said support elements and is internally open to the pressure in said vessel and externally confined by said cover and said support elements bounding said chamber.
  • a device according to claim 1 wherein said cover has an annular shoulder, which adjoins said recessed circumferential portion and which surrounds and defines a protruding central portion for said cover, said locking means fitting around said central portion and resting together with said support means, against said shoulder.
  • a device according to claim 1 wherein said vessel has an internal shoulder against which the cover rests in said recessed relation.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US78667A 1970-04-07 1970-10-07 Device for sealingly closing a metal pressure vessel Expired - Lifetime US3690505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7004982A NL7004982A (nl) 1970-04-07 1970-04-07

Publications (1)

Publication Number Publication Date
US3690505A true US3690505A (en) 1972-09-12

Family

ID=19809788

Family Applications (1)

Application Number Title Priority Date Filing Date
US78667A Expired - Lifetime US3690505A (en) 1970-04-07 1970-10-07 Device for sealingly closing a metal pressure vessel

Country Status (8)

Country Link
US (1) US3690505A (nl)
JP (1) JPS5113908B1 (nl)
BE (1) BE755137A (nl)
DE (1) DE2045307C3 (nl)
FR (1) FR2092237A5 (nl)
GB (1) GB1244600A (nl)
NL (1) NL7004982A (nl)
SE (1) SE358456B (nl)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701103A (en) * 1984-03-19 1987-10-20 Sulzer Brothers Limited Turbomachine housing
US20120091386A1 (en) * 2004-09-10 2012-04-19 Susumu Tauchi Vacuum processing apparatus
EP3428492A1 (en) * 2017-07-11 2019-01-16 Siemens Aktiengesellschaft Sealing cap

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019214989A1 (de) * 2019-09-30 2021-04-01 Robert Bosch Gmbh Heizvorrichtung mit einem Gehäuse mit mehreren Gebäudeteilen sowie Verfahren zum Auseinanderbauen eines Gehäuses einer Heizvorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196895A (en) * 1938-05-18 1940-04-09 Westinghouse Electric & Mfg Co High-pressure sealing head
US2298511A (en) * 1938-05-11 1942-10-13 Westinghouse Electric & Mfg Co Sealing closure for high-pressure heads
US2342186A (en) * 1938-04-23 1944-02-22 Westinghouse Electric & Mfg Co High-pressure sealing head
US2690276A (en) * 1952-06-07 1954-09-28 American Locomotive Co High-pressure closure
US2818993A (en) * 1955-11-28 1958-01-07 Alco Products Inc Pressure vessel closure
US3161317A (en) * 1962-10-26 1964-12-15 Babcock & Wilcox Co Pressure vessel closure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812164A (en) * 1953-09-17 1957-11-05 Lummus Co Heat exchanger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342186A (en) * 1938-04-23 1944-02-22 Westinghouse Electric & Mfg Co High-pressure sealing head
US2298511A (en) * 1938-05-11 1942-10-13 Westinghouse Electric & Mfg Co Sealing closure for high-pressure heads
US2196895A (en) * 1938-05-18 1940-04-09 Westinghouse Electric & Mfg Co High-pressure sealing head
US2690276A (en) * 1952-06-07 1954-09-28 American Locomotive Co High-pressure closure
US2818993A (en) * 1955-11-28 1958-01-07 Alco Products Inc Pressure vessel closure
US3161317A (en) * 1962-10-26 1964-12-15 Babcock & Wilcox Co Pressure vessel closure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701103A (en) * 1984-03-19 1987-10-20 Sulzer Brothers Limited Turbomachine housing
US20120091386A1 (en) * 2004-09-10 2012-04-19 Susumu Tauchi Vacuum processing apparatus
US8740011B2 (en) * 2004-09-10 2014-06-03 Hitachi High-Technologies Corporation Vacuum processing apparatus
EP3428492A1 (en) * 2017-07-11 2019-01-16 Siemens Aktiengesellschaft Sealing cap

Also Published As

Publication number Publication date
FR2092237A5 (nl) 1971-01-21
JPS5113908B1 (nl) 1976-05-04
DE2045307B2 (de) 1973-12-13
NL7004982A (nl) 1971-10-11
SE358456B (nl) 1973-07-30
GB1244600A (en) 1971-09-02
BE755137A (nl) 1971-02-01
DE2045307A1 (de) 1971-10-21
DE2045307C3 (de) 1974-07-11

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