EP0058385B1 - Anlage zur druckdichten Befestigung eines Rohres in einem Rohrboden mit Hilfe einer Druckflüssigkeit - Google Patents

Anlage zur druckdichten Befestigung eines Rohres in einem Rohrboden mit Hilfe einer Druckflüssigkeit Download PDF

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Publication number
EP0058385B1
EP0058385B1 EP82100962A EP82100962A EP0058385B1 EP 0058385 B1 EP0058385 B1 EP 0058385B1 EP 82100962 A EP82100962 A EP 82100962A EP 82100962 A EP82100962 A EP 82100962A EP 0058385 B1 EP0058385 B1 EP 0058385B1
Authority
EP
European Patent Office
Prior art keywords
pressure
expansion
expansion pressure
piston
mandrel
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
Application number
EP82100962A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0058385A1 (de
Inventor
Wilfried Busse
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT82100962T priority Critical patent/ATE13823T1/de
Publication of EP0058385A1 publication Critical patent/EP0058385A1/de
Application granted granted Critical
Publication of EP0058385B1 publication Critical patent/EP0058385B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • B21D39/203—Tube expanders with mandrels, e.g. expandable expandable by fluid or elastic material
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
    • Y10T29/4994—Radially expanding internal tube
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53113—Heat exchanger
    • Y10T29/53122—Heat exchanger including deforming means

Definitions

  • the invention relates, according to the preamble of claim 1, to a system for the pressure-tight fastening of a tube in a tube sheet with the aid of a pressure fluid, with a pressure build-up mandrel, a pressure fluid filling device and an expansion pressure generator, the expansion pressure generator being connected directly to the pressure build-up mandrel via the expansion pressure generator, wherein the expansion pressure generator has a pressure cylinder, a pressure piston, an expansion pressure seal and a filling connection opening into the pressure cylinder for the hydraulic fluid filling device, and the connection between the filling connection of the expansion pressure generator and the pressure build-up mandrel is open when the expansion pressure generator is passive and is blocked when the expansion pressure generator is active .
  • a system has become known from DE-B-26 16 523.
  • the invention relates to the "hydraulic expansion of pipes", which has been known for a long time (see, for example, DE-OS 1939 105 and the essay by M. Podhorsky and H. Krips "Hydraulic expansion of pipes” in VGB KRAFTWERKSTECHNIK, issue 1/1979, pages 81 to 87), in which the pipe end of the pipe to be fastened is inserted with play into a bore in the tube sheet, the pressure build-up mandrel is inserted into the pipe end of the pipe to be fastened, the cavity between the pipe end of the fastening pipe and the pressure build-up mandrel at the two ends of an expansion area - with the aid of at least two seals - and via at least one pressure medium supply led through the pressure build-up mandrel and into the cavity between the pipe end of the pipe to be fastened and the pressure build-up mandrel, a pressure fluid is supplied to the cavity becomes.
  • a filling pressure generator belonging to the hydraulic fluid filling device and the expansion pressure generator each have a double piston with a pressure piston that acts on the hydraulic fluid, ie the water, and an oil-loaded drive piston.
  • the invention is therefore based on the object of designing and developing the system in question for "hydraulic expansion of pipes" in such a way that the self-releasing check valve described and a manually operated residual pressure relief valve are no longer required.
  • the system according to the invention for the pressure-tight fastening of a tube in a tube sheet with the aid of a hydraulic fluid, in which the above-described object is achieved is characterized in that the expansion pressure seal is arranged in the inner wall of the pressure cylinder and the filling connection - as seen in the direction of movement of the pressure piston - before the expansion pressure seal opens into the pressure cylinder.
  • the expansion pressure generator is designed so that it also takes over the function of the self-releasing check valve that was necessary in the prior art. If the expansion pressure generator is initially passive, i. H. the pressure piston in its retracted, passive end position, the pressure fluid can easily be fed from the pressure fluid filling device via the expansion pressure generator past the expansion pressure seal to the pressure build-up mandrel.
  • the expansion pressure generator is then activated to build up the expansion pressure, the connection between the filling connection of the expansion pressure generator and the pressure build-up mandrel is blocked by pushing the pressure piston forward, moving the fill connection over, sliding into the expansion pressure seal and thus decoupling the pressure build-up mandrel from the filling connection, so that the expansion pressure generator the hydraulic fluid cannot push back into the hydraulic fluid filling device. If the expansion pressure generator is passivated again after the expansion, the connection between the pressure build-up mandrel and the filling connection of the expansion pressure generator is opened again, so that the residual pressure can be released into the hydraulic fluid filling device. Of particular importance is the fact that the expansion pressure seal is provided in the inner wall of the pressure cylinder, i.e.
  • the expansion pressure seal is provided in the outer wall of the pressure piston, i.e. it is designed as a so-called piston seal is.
  • the design of the expansion pressure seal of the expansion pressure generator as a so-called rod seal has a number of advantages over the design as a so-called piston seal.
  • the pressure piston for interacting with the expansion pressure seal can be machined better than the pressure cylinder.
  • the expansion pressure seal does not have to be embedded in the inner wall of the printing cylinder, but can also project over the inner wall of the printing cylinder, that is to say it can be arranged on the inner wall of the printing cylinder.
  • the expansion pressure generator with a filling pressure seal before the filling connection, as seen in the direction of movement of the pressure piston.
  • the filling connection between the expanding pressure seal and the filling pressure seal is located on the expanding pressure generator.
  • the pressure piston of the expansion pressure generator is generally brought into a passive end position by the explained residual pressure of the pressure fluid. Nevertheless, it may be advisable to provide the expansion pressure generator with a compression spring which ensures a passive end position of the pressure piston. This prevents the connection between the filling connection of the expansion pressure generator and the pressure build-up mandrel from being partially opened or partially blocked by the pressure piston of the expansion pressure generator when the expansion pressure generator is passive.
  • FIG. 1 shows a system for the pressure-tight fastening of a tube, not shown, in a tube sheet, not shown, with the aid of a hydraulic fluid, with a pressure build-up mandrel 1, a hydraulic fluid filling device 2 and an expansion pressure generator 3.
  • the hydraulic fluid filling device 2 and the expansion pressure generator 3 are connected to the pressure expansion mandrel 1 .
  • Water is used as the pressure fluid, while the pressure fluid filling device 2 and the expansion pressure generator 3 operate with oil conveyed by a pump as the drive means; a filling pressure generator 5 belonging to the hydraulic fluid filling device 2 and the expansion pressure generator 3 each have a double piston 6, 7, each with a pressure piston 8, 9 which pressurizes the hydraulic fluid, that is to say the water, and in each case an oil-loaded drive piston 10, 11. 1 shows a plurality of connecting, measuring and control means, which do not need to be described here.
  • the expansion pressure generator 3 has a pressure cylinder 12, the double piston 7 with the pressure piston 9 and an expansion pressure seal 13, which is effective between the pressure cylinder 12 and the pressure piston 9.
  • the pressure fluid filling device 2 is connected to the pressure build-up mandrel 1 via the expansion pressure generator 3, that is to say the expansion pressure generator 3 has a filling connection 14, and the connection between the filling connection 14 of the expansion pressure generator 3 and the pressure build-up mandrel 1 is opened, on the other hand, when the expansion pressure generator 3 is passive locked when the expansion pressure generator 3 is active.
  • the expansion pressure generator 3 is designed so that when it, as it were between the Hydraulic fluid filling device 2 and the pressure build-up mandrel 1 is provided, which also takes over the function of the self-releasing check valve that was necessary in the prior art. If the expansion pressure generator 3 is initially passive, the pressure fluid can be fed from the pressure fluid filling device 2 via the expansion pressure generator 3 to the pressure build-up mandrel 1, because the connection between the filler connection 14 of the expansion pressure generator 3 and the pressure build-up mandrel 1 is then opened.
  • the expansion pressure generator is activated, the connection between the filling connection 14 of the expansion pressure generator 3 and the pressure build-up mandrel 1 is blocked, so that the expansion pressure generator 3 cannot press the hydraulic fluid back into the hydraulic fluid filling 2. If the expansion pressure generator 3 is then passivated again after expansion, the connection between the filling connection 14 of the expansion pressure generator 3 and the pressure build-up mandrel 1 is opened again, so that the residual pressure in the hydraulic fluid filling device 2 can be reduced.
  • the filling connection 14 - seen in the direction of movement of the pressure piston 9 - is provided in the expansion pressure generator 3 in front of the expansion pressure seal 13 and the expansion pressure generator 3 - viewed in the direction of movement of the pressure piston 9 - has a filling pressure seal 15 in front of the filling connection 14; the filling connection 14 is thus between the expanding pressure seal 13 and the filling pressure seal 15.
  • the expanding pressure generator 3 also has a passive end position of the pressure piston 9, pressure spring 16 and the expanding pressure seal 13 is provided in the inner wall of the pressure cylinder 9, that is to say as a so-called rod seal executed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Actuator (AREA)
  • Press Drives And Press Lines (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP82100962A 1981-02-17 1982-02-10 Anlage zur druckdichten Befestigung eines Rohres in einem Rohrboden mit Hilfe einer Druckflüssigkeit Expired EP0058385B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100962T ATE13823T1 (de) 1981-02-17 1982-02-10 Anlage zur druckdichten befestigung eines rohres in einem rohrboden mit hilfe einer druckfluessigkeit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3105735A DE3105735C2 (de) 1981-02-17 1981-02-17 Anlage zur druckdichten Befestigung eines Rohres in einem Rohrboden mit Hilfe einer Druckflüssigkeit
DE3105735 1981-02-17

Publications (2)

Publication Number Publication Date
EP0058385A1 EP0058385A1 (de) 1982-08-25
EP0058385B1 true EP0058385B1 (de) 1985-06-19

Family

ID=6125060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100962A Expired EP0058385B1 (de) 1981-02-17 1982-02-10 Anlage zur druckdichten Befestigung eines Rohres in einem Rohrboden mit Hilfe einer Druckflüssigkeit

Country Status (16)

Country Link
US (1) US4485547A (cs)
EP (1) EP0058385B1 (cs)
JP (1) JPS57152334A (cs)
AR (1) AR228637A1 (cs)
AT (1) ATE13823T1 (cs)
AU (1) AU548570B2 (cs)
BR (1) BR8200819A (cs)
CA (1) CA1174573A (cs)
CS (1) CS235531B2 (cs)
DD (1) DD201979A5 (cs)
DE (1) DE3105735C2 (cs)
ES (1) ES8301694A1 (cs)
PL (1) PL137800B1 (cs)
RO (1) RO83450B (cs)
YU (1) YU33182A (cs)
ZA (1) ZA82754B (cs)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470280A (en) * 1983-05-16 1984-09-11 Haskel, Inc. Swaging apparatus with timed pre-fill
DE3611108C1 (de) * 1986-04-03 1987-07-30 Balcke Duerr Ag Verfahren und Vorrichtung zur druckdichten Befestigung von geraden Rohren zwischen zwei Rohrscheiben
US4892149A (en) * 1987-04-30 1990-01-09 Cameron Iron Works Usa, Inc. Method of securing a tubular member within an annular well member, the combined well structure and the tool
DE4103079A1 (de) * 1991-02-01 1992-08-27 Eichelberg & Co Gmbh H D Vorrichtung zum hydrostatischen umformen von hohlkoerpern aus kaltumformbarem metall
DE4103081A1 (de) * 1991-02-01 1992-08-06 Eichelberg & Co Gmbh H D Verfahren zum hydrostatischen umformen von hohlkoerpern aus kaltumformbarem metall und vorrichtung zur durchfuehrung des verfahrens
DE4103082A1 (de) * 1991-02-01 1992-08-27 Eichelberg & Co Gmbh H D Verfahren zum hydrostatischen umformen von hohlkoerpern aus kaltumformbarem metall und vorrichtung zur durchfuehrung des verfahrens
ES2301898T3 (es) * 2004-06-03 2008-07-01 Balcke-Durr Gmbh Procedimiento y dispositivo para ensanchamiento hidraulico.
US9302205B1 (en) 2014-10-14 2016-04-05 Neptune-Benson, Llc Multi-segmented tube sheet
US9581395B2 (en) 2014-10-14 2017-02-28 Neptune-Benson, Llc Multi-segmented tube sheet
US9127896B1 (en) 2014-10-14 2015-09-08 Neptune-Benson, Llc Multi-segmented tube sheet
US9303924B1 (en) 2014-10-14 2016-04-05 Neptune-Benson, Llc Multi-segmented tube sheet
CN109396538A (zh) * 2018-11-15 2019-03-01 长沙思胜智能设备有限公司 卧式拉床及其滑台液压系统
US11338353B2 (en) * 2020-08-11 2022-05-24 Rheem Manufacturing Company Systems and methods for heat exchanger manufacturing

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638748A (en) * 1948-08-13 1953-05-19 Scott Aviation Corp Master cylinder with fluid-volume compensating valve in piston
US2847827A (en) * 1954-09-13 1958-08-19 Thew Shovel Co Hydraulic compensating master cylinder
DE1939105A1 (de) * 1968-08-13 1970-02-19 High Pressure Components Ltd Verfahren und Vorrichtung zum seitlichen Aufweiten von Rohren
AT349856B (de) * 1976-04-14 1979-04-25 Balcke Duerr Ag Vorrichtung zum aufweiten von rohrenden inner- halb einer rohrscheibe
DE2622753C3 (de) * 1976-05-21 1980-03-20 Balcke-Duerr Ag, 4030 Ratingen Einrichtung zum druckdichten Befestigen von Rohren in Bohrungen von Rohrscheiben
DE2638949C3 (de) * 1976-08-28 1981-04-02 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum Anformen von Zapfen an einer Platine
US4211151A (en) * 1977-05-26 1980-07-08 United Technologies Corporation Jam proof piston
JPS5913290B2 (ja) * 1977-06-16 1984-03-28 株式会社スギノマシン 液圧拡管装置
US4161187A (en) * 1978-01-03 1979-07-17 Bauer David N Erosion resistant control valve
JPS54109063A (en) * 1978-02-14 1979-08-27 Sugino Mach Liquid pressure pipe expanding device equipped with automatic safety valve for liquid pressure
JPS54124866A (en) * 1978-03-22 1979-09-28 Babcock Hitachi Kk Hydraulic pipe expander

Also Published As

Publication number Publication date
ZA82754B (en) 1982-12-29
AR228637A1 (es) 1983-03-30
AU548570B2 (en) 1985-12-19
PL235098A1 (cs) 1982-09-13
RO83450A (ro) 1984-02-21
ES509639A0 (es) 1983-01-16
YU33182A (en) 1985-03-20
DE3105735A1 (de) 1982-08-26
CS235531B2 (en) 1985-05-15
DE3105735C2 (de) 1983-05-26
JPS57152334A (en) 1982-09-20
EP0058385A1 (de) 1982-08-25
PL137800B1 (en) 1986-07-31
BR8200819A (pt) 1982-12-28
DD201979A5 (de) 1983-08-24
CA1174573A (en) 1984-09-18
RO83450B (ro) 1984-02-28
AU8052582A (en) 1982-08-26
ATE13823T1 (de) 1985-07-15
ES8301694A1 (es) 1983-01-16
US4485547A (en) 1984-12-04

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