DE1031997B - Device for closing pipes during a hydraulic pressure test - Google Patents
Device for closing pipes during a hydraulic pressure testInfo
- Publication number
- DE1031997B DE1031997B DEH27928A DEH0027928A DE1031997B DE 1031997 B DE1031997 B DE 1031997B DE H27928 A DEH27928 A DE H27928A DE H0027928 A DEH0027928 A DE H0027928A DE 1031997 B DE1031997 B DE 1031997B
- Authority
- DE
- Germany
- Prior art keywords
- pipe
- pressure test
- hydraulic pressure
- rings
- closing
- 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.)
- Pending
Links
- 230000004308 accommodation Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow in pipes or hoses
- F16L55/12—Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/1286—The closing device being a cap
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow in pipes or hoses
- F16L55/115—Caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
- F28F11/02—Arrangements for sealing leaky tubes and conduits using obturating elements, e.g. washers, inserted and operated independently of each other
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/022—Test plugs for closing off the end of a pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Description
DEUTSCHESGERMAN
Es ist bekannt, daß Rohre, die für den Einbau in Wärmeaustauscher bestimmt sind, zum Nachweis ihrer Dichtheit hydraulischen Hochdruckproben unterworfen werden, wobei der Prüfdruck bis zu 1000 at erreichen kann. Während: der hydraulischen Druckprobe müssen die freiein Rohrenden verschlossen gehalten werden. Diese Abdichtung muß einerseits bei den anzuwendenden hohen Drücken vollkommen gewährleistet sein, anderseits aber mit rasch bedienbaren Mitteln erfolgen, um die Zeitdauer für die vor und nach der Druckprobe erforderlichen Manipulationen abzukürzen.It is known that pipes which are intended for installation in heat exchangers are used for detection their tightness are subjected to hydraulic high-pressure tests, the test pressure being up to 1000 at can reach. During: the hydraulic pressure test the free ends of the pipe must be kept closed. This seal must be on the one hand the high pressures to be applied must be fully guaranteed, but on the other hand with quickly operable Means are made to determine the length of time for the manipulations required before and after the pressure test abbreviate.
Die Erfindung betrifft eine Verschlußeinrichtung für Rohre, die infolge ihrer besonderen Ausbildung eine vollkommene Abdichtung eines Rohrendes ermöglicht und sehr rasch' in das Rohr eingesetzt bzw. aus ihm entfernt werden kann.The invention relates to a closure device for pipes, due to their special training a complete sealing of a pipe end is made possible and very quickly inserted or inserted into the pipe. can be removed from it.
Die wesentlichein Merkmale der erfindungsgemäßen Verschlusseinrichtung bestehen darin, daß sie ein Kernstück aufweist, das durch zwei Halbringe gehaltert ist, welche das Rohr an seiner Außenseite eng umschließen, und daß zwischen dem Kernstück und der inneren Rohrwand ein Dichtungsring vorgesehen ist, der in einer Ringnut des Kernstückes liegt, deren Boden mit dem Rohrinnenraum, vorzugsweise durch besondere Kanäle, verbunden ist, so daß der im Rohrkmenraum herrschende .Druck um so stärker auf die Ringdichtung wirkt, je stärker dieser Innendruck ansteigt. The essential features of the closure device according to the invention are that they have a Has the core, which is held by two half-rings, which the tube tightly on its outside enclose, and that a sealing ring is provided between the core piece and the inner pipe wall is, which lies in an annular groove of the core piece, the bottom of which with the pipe interior, preferably through special channels, is connected, so that the pressure prevailing in the Rohrkmenraum .Druck all the stronger on the The ring seal works the more this internal pressure increases.
Zum beSiSeren Verständnis soll nachstehend ein Ausführungsbeispiel der Erfindung an Hand der Zeichnung näher beschrieben werden.For better understanding, an exemplary embodiment of the invention will be given below with reference to the Drawing will be described in more detail.
Abb. 1 zeigt eine in das Ende eines Rohres eingesetzte Verschlußeinrichtung nach der Erfindung im Längsschnitt;Fig. 1 shows a closure device according to the invention inserted into the end of a tube Longitudinal section;
Abb. 2 stellt die Verschlußeinrichtung nach Abb. 1 in Vorderansicht dar.Fig. 2 shows the locking device according to Fig. 1 in a front view.
Die in den Abb. 1 und 2 gezeigte erfindungsgemäße Verschlußeinrichtung besteht aus. einem Kernstück a, das vor Beginn der Druckprobe in das Innere des zu verschließenden Rohres eingesetzt wird. Das Kernstück α hat einen ringförmigen Bund c, der in entsprechend geformte Ausnehmungen c' eingreift, welche in zwei das Kernstück umschließenden Halbringen d1, d2 ausgespart sind. Die beiden Halbringe d1, d- sind durch einen Bolzen e gelenkig miteinander verbunden und tragen zwei Lappen e1, e2, die durch eine Schraube mit einer Mutter / oder durch andere geeignete Schließmittel zusammengespannt werden können. Die Halbringe umspannen das Rohr b und sind an ihren halbzylindrisehen Innenseiten mit Zähnen g versehen, die in das Metall des Rohres eingreifen.The closure device according to the invention shown in Figs. 1 and 2 consists of. a core piece a, which is inserted into the interior of the pipe to be closed before the start of the pressure test. The core piece α has an annular collar c which engages in correspondingly shaped recesses c ' which are recessed in two half-rings d 1 , d 2 surrounding the core piece. The two half-rings d 1 , d- are articulated to one another by a bolt e and carry two tabs e 1 , e 2 , which can be clamped together by a screw with a nut / or by other suitable locking means. The half-rings encircle the tube b and are provided on their semi-cylindrical inner sides with teeth g which engage in the metal of the tube.
Das Kernstück α weist ferner an seinem Ende eine kreisförmige Nut/i auf, in die ein Dichtungsring ausThe core piece α also has at its end a circular groove / i, into which a sealing ring
Einrichtung zum Abschließen von Rohren bei einer hydraulischen DruckprobeDevice for closing off pipes during a hydraulic pressure test
Anmelder:
Andre Huet, ParisApplicant:
Andre Huet, Paris
Vertreter: Dr. W. Schalk, Dipl.-Ing. P. Wirth,Representative: Dr. W. Schalk, Dipl.-Ing. P. Wirth,
Dipl.-Ing. G. E. M. DannenbergDipl.-Ing. G. E. M. Dannenberg
und Dr. V. Schmied-Kowarzik, Patentanwälte,and Dr. V. Schmied-Kowarzik, patent attorneys,
Frankfurt/M., Große Eschenheimer Str. 39Frankfurt / M., Große Eschenheimer Str. 39
Beanspruchte Priorität:
Frankreich vom 20. Oktober 1955Claimed priority:
France October 20, 1955
Andre Huet, Paris,
ist als Erfinder genannt wordenAndre Huet, Paris,
has been named as the inventor
plastischem Material, z. B. aus Frasniit, eingesetzt ist. Der bodennahe Teil dieser Nut h kann durch öffnungen k mit dem Innenraum des Rohres b in Verbindung stehen. Diese Öffnungen können allenfalls bei 'entsprechender Größe und Wirkungsrichtung des wirksamen hydraulischen Druckes entbehrlich sein.plastic material, e.g. B. from Frasniit, is used. The part of this groove h near the bottom can be connected to the interior of the tube b through openings k . These openings can at most be dispensable with a corresponding size and direction of action of the effective hydraulic pressure.
In der Achse des Kernstückes α ist weiter ein mit einem Ventil m ausgestatteter Kanal / vorgesehen, der eine Entlüftung während der Drucksteigerung bei der Druckprobe und die Entleerung des Rohres nach beendeter Druckprobe ermöglicht und auch zum Füllen des Rohres mit Wasser dienen kann.A channel / equipped with a valve m is also provided in the axis of the core piece.
Zur Vornahme der Druckprobe wird das Kernstück α in das Rohr b eingeschoben, worauf die aufgeklappten Halbringe d1, d2 außen auf das Rohr b aufgesetzt und, wie in der Zeichnung veranschaulicht, geschlossen werden. Sodann wird die Mutter / fest angezogen, damit die Halbringe das Rohr b so fest wie möglich umspannen. Die Verschlußeinrichtung ist nunmehr betriebsbereit.To carry out the pressure test, the core piece α is pushed into the tube b , whereupon the opened half-rings d 1 , d 2 are placed on the outside of the tube b and, as illustrated in the drawing, are closed. Then the nut / is tightened so that the half-rings encircle the tube b as tightly as possible. The locking device is now ready for use.
Die Druckflüssigkeit strömt in das Rohr b ein, tritt durch die Öffnungen k in den bodennahen Teil der Nut h über und preßt die Dichtung i gegen die Innenwand: des Rohres sowie gegen die Hinterwand der Nut, d. h. so dicht wie möglich gegen das Rohrende, wodurch die Dichtheit des Abschlusses gewährleistet wird.The pressure fluid flows into the pipe b , passes through the openings k into the part of the groove h near the bottom and presses the seal i against the inner wall: of the pipe and against the rear wall of the groove, ie as close as possible to the end of the pipe, whereby the tightness of the closure is guaranteed.
809 330/166809 330/166
Die Verschlußeinridhtüng kann selbstverständlich im Rahmen der Erfindung in Einzelheiten abgewandelt werden.The locking mechanism can of course can be modified in detail within the scope of the invention.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1031997X | 1955-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1031997B true DE1031997B (en) | 1958-06-12 |
Family
ID=9583501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEH27928A Pending DE1031997B (en) | 1955-10-20 | 1956-08-23 | Device for closing pipes during a hydraulic pressure test |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1031997B (en) |
| FR (1) | FR1134275A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6209928B1 (en) * | 1998-06-04 | 2001-04-03 | The Regents Of The University Of California | Microfluidic interconnects |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2986454A (en) * | 1957-07-23 | 1961-05-30 | American Cyanamid Co | Tubular catalytic converter |
| US4764332A (en) * | 1986-07-31 | 1988-08-16 | Westinghouse Electric Corp. | Sealing element and method for hydrotesting of nuclear reactor tubular elements |
| FR2714963B1 (en) * | 1994-01-12 | 1996-04-05 | Framatome Sa | Sealing device for controlled leakage of a heat exchanger tube. |
| CN111550638B (en) * | 2020-05-11 | 2022-02-08 | 长沙义和车桥有限公司 | Cleaning vehicle tank body clamping joint sealing tool |
-
1955
- 1955-10-20 FR FR1134275D patent/FR1134275A/en not_active Expired
-
1956
- 1956-08-23 DE DEH27928A patent/DE1031997B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6209928B1 (en) * | 1998-06-04 | 2001-04-03 | The Regents Of The University Of California | Microfluidic interconnects |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1134275A (en) | 1957-04-09 |
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