DK201000423A - Pipe end sealing structure - Google Patents

Pipe end sealing structure Download PDF

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Publication number
DK201000423A
DK201000423A DKPA201000423A DKPA201000423A DK201000423A DK 201000423 A DK201000423 A DK 201000423A DK PA201000423 A DKPA201000423 A DK PA201000423A DK PA201000423 A DKPA201000423 A DK PA201000423A DK 201000423 A DK201000423 A DK 201000423A
Authority
DK
Denmark
Prior art keywords
sealing
pipe
flange
end surface
pipe element
Prior art date
Application number
DKPA201000423A
Inventor
Kempf Torben Auda
Original Assignee
Man Diesel & Turbo Deutschland
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 Man Diesel & Turbo Deutschland filed Critical Man Diesel & Turbo Deutschland
Priority to DKPA201000423A priority Critical patent/DK201000423A/en
Priority to PCT/DK2011/000045 priority patent/WO2011141026A1/en
Publication of DK201000423A publication Critical patent/DK201000423A/en

Links

Classifications

    • 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
    • F16L23/00—Flanged joints
    • F16L23/12—Flanged joints specially adapted for particular pipes
    • 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F16L23/0286—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the shoulder not being formed from the pipe
    • 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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • F16L23/20—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J99/00—Subject matter not provided for in other groups of this subclass
    • B63J2099/001—Burning of transported goods, e.g. fuel, boil-off or refuse
    • B63J2099/003—Burning of transported goods, e.g. fuel, boil-off or refuse of cargo oil or fuel, or of boil-off gases, e.g. for propulsive purposes
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system

Abstract

The invention is directed to a pipe end sealing structure (1) comprising a first pipe element (2) having a cylindrical metal pipe body with a first annular end surface (12) at at least one open pipe end adapted to be a sealing support surface, a sealing (4) having a metal sealing body with a first sealing surface (13) facing towards first annular end surface (12) and being adapted to rest at least partially on the first annular end surface (12), a first flange (3) extending radially outwardly from an outer circumference of the first pipe element (2) and being fixed there at least against axial movement towards the open pipe end, and urging means (7, 8, 9) adapted for urging the sealing (4) and the first flange (3) in an axial direction towards each other, so that the sealing (4) is urged with its first sealing surface (13) against the first annular end surface (12) of the first pipe element (1 ). The invention is characterized in that the first annular end surface (12) of the cylindrical metal pipe body is a tapered annular surface (12) and the first sealing surface (13) of the metal sealing body is a conical inner circumferential surface (13) facing towards and resting at least partially on the first tapered annular end surface (12) of the first pipe element (2), wherein the metal pipe body and the metal sealing body have a rigidity sufficient to withstand a high pressure above 250 bar of a high pressure gas and to withstand an urging force of the urging means (7, 8, 9) sufficient to make the connection gas tight, and the urging means (7, 8, 9) are adapted for urging the sealing (4) and the first flange (3) with such a force towards each other, that the connection is gas tight.

Claims (13)

1. Pipe end sealing structure (1) comprising a first pipe element (2) having a cylindrical metal pipe body with a first annular end surface (12) at at least one open pipe end adapted to be a sealing support surface, a sealing (4) having a metal sealing body with a first sealing surface (13) facing towards first annular end surface (12) and being adapted to rest at least partially on the first annular end surface (12), a first flange (3) extending radially outwardly from an outer circumference of the first pipe element (2) and being fixed there at least against axial movement towards the open pipe end, urging means (7, 8, 9) adapted for urging the sealing (4) and the first flange (3) in an axial direction towards each other, so that the sealing (4) is urged with its first sealing surface (13) against the first annular end surface (12) of the first pipe element (1), characterized in that the first annular end surface (12) of the cylindrical metal pipe body is a tapered annular surface (12) and the first sealing surface (13) of the metal sealing body is a conical inner circumferential surface (13) facing towards and resting at least partially on the first tapered annular end surface (12) of the first pipe element (2), wherein the metal pipe body and the metal sealing body have a rigidity sufficient to withstand a high pressure above 250 bar of a high pressure gas and to withstand an urging force of the urging means (7, 8, 9) sufficient to make the connection gas tight, and the urging means (7, 8, 9) are adapted for urging the sealing (4) and the first flange (3) with such an urging force towards each other, that the connection is gas tight.
2. Pipe end sealing structure according to claim 1, characterized in that the sealing incorporates a blind end cap portion and has a rigidity sufficient for a gas pressure above 250 bar in order to make a gas tight closure of the first pipe at one of its pipe ends.
3. Pipe end sealing structure according to claim 1 or 2, characterized in that the sealing incorporates connecting means for connecting a secondary equipment piece with the first pipe, e.g. a pressure gauge, temperatur gauge, support connection, etc.
4. Pipe end sealing structure (1) according to claims 1 or 3, characterized in that it comprises a second pipe element (5) having a cylindrical metal pipe body with a second annular end surface (13) at at least one open pipe end being a tapered annular sealing support surface (13), and a second flange (6) extending radially outwardly from an outer circumference of the second pipe element (5) and being fixed there at least against axial movement towards the second tapered annular end surface (14) of the second pipe element (5), wherein the sealing (4) has a second sealing surface (15) being a conical inner circumferential surface facing and being adapted to rest at least partially on the second tapered annular surface (14) of the second pipe element (5), and wherein the cylindrical metal pipe body of the second pipe element (5) and the metal sealing body of the sealing (4) have a rigidity sufficient to withstand a high pressure above 250 bar of a high pressure gas and to withstand an urging force of the urging means (7, 8, 9) sufficient to make the connection gas tight, and wherein the urging means (7, 8, 9) are adapted for urging the sealing (4) and the second flange (6) in an axial direction towards each other, so that the sealing (4) is urged with its second sealing surface (15) against the second annular end surface (14) of the second pipe element (5) with such an urging force, that the connection is gas tight.
5. Pipe end sealing structure according to claim 4, characterized in that at least the second pipe element is formed as a pipe connector piece having a L-, T-, Y-or X-shaped metal pipe crossing, bending or manifold body.
6. Pipe end sealing structure according to claim 4 or 5, characterized in that at least the second pipe element incorporates connecting means for connecting a secondary equipment piece with the first pipe, e.g. a pressure gauge, temperatur gauge, support connection, etc.
7. Pipe end sealing structure (1) according to one of the preceding claims, characterized in that a tapering angle of the first end surface (12) is somewhat bigger than a conical angle of the first sealing surface (13) and/or a tapering angle of the second end surface (14) is somewhat bigger than a concical angle of the second sealing surface (15), so that a linear, annular contact of the first end surface (12) and the first sealing surface (13) on the one hand and/or the second end surface (14) and the second sealing surface (15) on the other hand is established, as the urging means urge the sealing (4) and the first flange (3) in an axial direction towards each other and/or the sealing (4) and the second flange (6) in an axial direction towards each other.
8. Pipe end sealing structure (1) according to claim 7, characterized in that the difference between the tapering angle of the first end surface (12) and the conical angle of the first sealing surface (13) and/or the difference between the tapering angle of the second end surface (14) and the conical angle of the second sealing surface (15) is Γ to 4°, preferably 2°, and wherein the tapering angle of the first end surface (12) and/or the second end surface (14) is preferably 60° and the conical angle of the first sealing surface (13) and/or the second sealing surface (15) is preferably 58°.
9. Pipe end sealing structure (1) according to one of the preceding claims, characterized in that the metal sealing body comprises an outer portion protruding radially over the outer circumferential surface of the first pipe element (2) and the urging means (7, 8, 9) comprise comprise threadedly engaged nuts and first bolts (7) penetrating through holes in the first flange (3) and through holes (8) in the outer portion of the metal sealing body and/or first bolts penetrating through holes in the first flange (3) and being threadedly engaged within holes in the in the outer portion of the metal sealing body .
10. Pipe end sealing structure according to one of the preceding claims 4 to 9, characterized in that the metal sealing body comprises an outer portion protruding radially over the outer circumferential surface of the second pipe element (5) and the urging means (7, 8, 9) comprise threadedly engaged nuts and second bolts (9) penetrating through holes in the second flange (6) and through holes (8) in the outer portion of the metal sealing body and/or second bolts penetrating through holes in the second flange (6) and being threadedly engaged within holes in the outer portion of the metal sealing body.
11. Pipe end sealing structure (1) according to one of the preceding claims 4 to 8, characterized in that the urging means (7, 8, 9) comprise first bolts penetrating through holes in the first flange and through holes in the second flange being urged by nuts or first bolts penetrating through holes in the first flange and being threadedly engaged with holes in the second flange.
12. Pipe end sealing structure (1) according to one of the preceding claims, characterized in that the first flange (3) and the first pipe element (2) are separate parts and/or the second flange (6) and the second pipe element (5) are separate parts, and wherein a shear ring (11) is drawn over the outer circumference of the first pipe element (2) and/or over the second pipe element (5) and hindered by a circumferential shoulder on the outer circumference on axial movement towards the sealing (4), the shear ring (11) is overlapping the shoulder in radial direction and the first flange (3) and/or the second flange (6) have a bigger inner diameter than the outer diameter of the respective shoulder and a smaller inner diameter than the outer diameter of the respective shear ring (11), so that a axial movement of the first flange (3) and/or second flange (6) towards the sealing (4) is hindered.
13. Pipe end sealing structure (1) according to claim 12, characterized in that the shoulder on the first pipe element (2) and/or the second pipe element (5) is a portion of a ring groove (16).
DKPA201000423A 2010-05-12 2010-05-12 Pipe end sealing structure DK201000423A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DKPA201000423A DK201000423A (en) 2010-05-12 2010-05-12 Pipe end sealing structure
PCT/DK2011/000045 WO2011141026A1 (en) 2010-05-12 2011-05-12 Pipe end sealing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA201000423A DK201000423A (en) 2010-05-12 2010-05-12 Pipe end sealing structure

Publications (1)

Publication Number Publication Date
DK201000423A true DK201000423A (en) 2011-11-13

Family

ID=44913967

Family Applications (1)

Application Number Title Priority Date Filing Date
DKPA201000423A DK201000423A (en) 2010-05-12 2010-05-12 Pipe end sealing structure

Country Status (2)

Country Link
DK (1) DK201000423A (en)
WO (1) WO2011141026A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102944370B (en) * 2012-10-31 2015-03-25 四川安东油气工程技术服务有限公司 Pressure device for airtightness detection of casing and manufacturing method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB178253A (en) * 1921-02-15 1922-04-20 Harry Slade Improved construction of joint for pipes or tubes
US1821862A (en) * 1929-06-24 1931-09-01 Wylie G Wilson Sealing ring for joints
LU80415A1 (en) * 1978-10-25 1979-03-19 Gen Technic Secs COUPLING ELEMENT AND METHOD OF MANUFACTURING THESE

Also Published As

Publication number Publication date
WO2011141026A1 (en) 2011-11-17

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Date Code Title Description
PHB Application deemed withdrawn due to non-payment or other reasons

Effective date: 20130531