EP0058385A1 - Installation pour la fixation d'un tube tenant la pression dans une plaque tubulaire au moyen d'un fluide sous pression - Google Patents

Installation pour la fixation d'un tube tenant la pression dans une plaque tubulaire au moyen d'un fluide sous pression Download PDF

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Publication number
EP0058385A1
EP0058385A1 EP82100962A EP82100962A EP0058385A1 EP 0058385 A1 EP0058385 A1 EP 0058385A1 EP 82100962 A EP82100962 A EP 82100962A EP 82100962 A EP82100962 A EP 82100962A EP 0058385 A1 EP0058385 A1 EP 0058385A1
Authority
EP
European Patent Office
Prior art keywords
pressure
expansion
mandrel
generator
pressure generator
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.)
Granted
Application number
EP82100962A
Other languages
German (de)
English (en)
Other versions
EP0058385B1 (fr
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/fr
Application granted granted Critical
Publication of EP0058385B1 publication Critical patent/EP0058385B1/fr
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 to a system for the pressure-tight fastening of a tube in a tube sheet with the aid of a hydraulic fluid, with a pressure build-up mandrel, a hydraulic fluid filling device and an expansion pressure generator, the hydraulic fluid filling device and the expansion pressure generator being connected to a pressure expansion mandrel and the expansion pressure generator being a pressure cylinder, a pressure piston and an expansion pressure seal - t ung.
  • the invention thus relates to the "hydraulic expansion of pipes", which has been known for a long time (cf., for example, DE-OS 19 39 105 and the essay by M. Podhorsky and H.
  • the invention is therefore based on the object to design and develop the system in question for "hydraulic expansion of pipes" so 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 is initially and essentially characterized in that the hydraulic fluid filling device is connected to the pressure build-up mandrel via the expansion pressure generator, i.e. the expansion pressure generator has a filling connection 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, the connection between the fill connection of the expansion pressure generator and the pressure build-up mandrel is blocked when the expansion pressure generator is active.
  • the expansion pressure generator is designed so that if it is provided between the pressure fluid filling device and the pressure build-up mandrel, the pressure fluid filling device is connected to the pressure build-up mandrel via the expansion pressure generator, 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, the hydraulic fluid can be easily removed from the hydraulic fluid. k e its filling device are supplied to the pressure build-up mandrel via the expansion pressure generator, because then according to the teaching of the invention the connection between the filling connection of the expansion pressure generator and the pressure build-up mandrel is opened.
  • the connection between the filling connection of the expansion pressure generator and the pressure build-up mandrel is blocked according to the invention, so that the expansion pressure generator cannot press the hydraulic fluid back into the hydraulic fluid filling device. If the expansion pressure generator is passivated again after 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 reduced in the hydraulic fluid filling device.
  • the teaching of the invention to realize an open connection between the filling connection of the expansion pressure generator and the pressure build-up mandrel when the expansion pressure generator is passive, on the other hand to realize a blocked connection between the fill connection of the expansion pressure generator and the pressure build-up mandrel when the expansion pressure generator is active can Realize particularly simply in that in the expansion pressure generator the filling connection - as seen in the direction of movement of the pressure piston - is provided in front of the expansion pressure seal. It is then advisable to provide the expansion pressure generator with a filling pressure seal before the filling connection, as seen in the direction of movement of the pressure piston. In this embodiment, therefore, 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 moved into a passive end position by the explained residual pressure of the pressure fluid brings. 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.
  • the expansion pressure seal is provided in the expansion wall generator in the inner wall of the pressure cylinder, that is to say embodied as a so-called rod seal, while in the prior art from which the invention is based, the expansion pressure seal in the expansion pressure generator in provided the outer wall of the pressure piston, that is designed as a so-called piston seal.
  • 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 pressure build-up mandrel is introduced with play into the pipe end of the pipe to be fastened and the cavity between the pipe end of the pipe to be fastened and the pressure build-up mandrel is sealed only after the pressure build-up mandrel has been introduced into the pipe end (cf. DE-OS 19 39 105).
  • the seals are mechanically enlarged after the introduction of the pressure build-up mandrel into the pipe end of the pipe to be fastened, namely via clamping cones, so that it leads to the desired and required sealing of the cavity between the pipe end of the pipe to be fastened and the pressure build-up mandrel introduced into this pipe end.
  • the seals with which the pressure build-up mandrel is provided have from the outset an outside diameter which is "slightly" larger than the inside diameter of the pipe end of the pipe to be fastened (cf. DE-OS 24 00 148).
  • the pressure build-up mandrel can thus only be introduced into the pipe end of the pipe to be fastened in the axial direction by a not inconsiderable force.
  • the pressure build-up mandrel is introduced with play into the pipe end of the pipe to be fastened and the cavity between the pipe end of the pipe to be fastened and the pressure build-up mandrel is sealed only after the pressure build-up mandrel has been introduced into the pipe end, specifically in that the force for the radial increase in the Seals of the pressure build-up mandrel and thus for sealing the cavity between the pipe end of the pipe to be fastened and the pressure build-up mandrel is derived from the hydraulic fluid, the "real task" of which is to widen the pipe end of the pipe to be fastened.
  • the pressure fluid is supplied first at a first flow rate and then at a second flow rate, the first flow rate being so low that a seal of the cavity between the pipe end of the pipe to be fastened and the pressure build-up mandrel does not yet take place, while the second flow rate is so high that the cavity between the pipe end of the pipe to be fastened and the pressure build-up mandrel is sealed.
  • 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 pressure fluid, with a pressure build-up mandrel 1, a pressure fluid filler 2 and an expansion pressure generator 3.
  • the pressure fluid filler 2 and the expansion pressure generator 3 are with the pressure build-up mandrel 1 connected.
  • Water is used as the pressure fluid, while the Hydraulic fluid filling device 2 and the expansion pressure generator 3 work with oil conveyed by a pump 4 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 hydraulic fluid filling device 2 is connected via the expansion pressure generator 3 to the pressure build-up mandrel 1, 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 when the expansion pressure generator 3 is passive, on the other hand locked when the expansion pressure generator 3 is active.
  • the expansion pressure generator 3 is designed so that, if it is provided as it were between the hydraulic fluid filling device 2 and the pressure build-up mandrel 1, it 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 easily from the pressure fluid filling device 2 via the expansion pressure generator 3 to the pressure build-up mandrel 1, because then, according to the teaching of the invention, the connection between the filling connection 14 of the expansion pressure generator 3 and the pressure build-up mandrel 1 is opened is.
  • the connection between the filler connection 14 of the expansion pressure generator 3 and the pressure build-up mandrel 1 is blocked according to the invention. so that the expansion pressure generator 3 cannot push the hydraulic fluid back into the hydraulic fluid filling device 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)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Press Drives And Press Lines (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP82100962A 1981-02-17 1982-02-10 Installation pour la fixation d'un tube tenant la pression dans une plaque tubulaire au moyen d'un fluide sous pression Expired EP0058385B1 (fr)

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 true EP0058385A1 (fr) 1982-08-25
EP0058385B1 EP0058385B1 (fr) 1985-06-19

Family

ID=6125060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100962A Expired EP0058385B1 (fr) 1981-02-17 1982-02-10 Installation pour la fixation d'un tube tenant la pression dans une plaque tubulaire au moyen d'un fluide sous pression

Country Status (16)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125681A2 (fr) * 1983-05-16 1984-11-21 Haskel, Inc. Appareil pour former des jonctions étanches contre les fuites entre des tubes et un plateau à tubes
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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
DE4103079A1 (de) * 1991-02-01 1992-08-27 Eichelberg & Co Gmbh H D Vorrichtung zum hydrostatischen umformen von hohlkoerpern aus kaltumformbarem metall
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
DE502004006574D1 (de) * 2004-06-03 2008-04-30 Balcke Duerr Gmbh Hydraulisches Aufweitverfahren und Vorrichtung dafür
US9303924B1 (en) 2014-10-14 2016-04-05 Neptune-Benson, Llc Multi-segmented tube sheet
US9302205B1 (en) 2014-10-14 2016-04-05 Neptune-Benson, Llc Multi-segmented tube sheet
US9149742B1 (en) 2014-10-14 2015-10-06 Neptune-Benson, Llc Multi-segmented tube sheet
US9581395B2 (en) 2014-10-14 2017-02-28 Neptune-Benson, Llc Multi-segmented tube sheet
US11338353B2 (en) * 2020-08-11 2022-05-24 Rheem Manufacturing Company Systems and methods for heat exchanger manufacturing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616523B1 (de) * 1976-04-14 1977-03-24 Balcke Duerr Ag Vorrichtung zum aufweiten von rohrenden innerhalb einer rohrscheibe
DE2622753A1 (de) * 1976-05-21 1977-12-01 Balcke Duerr Ag Verfahren zum druckdichten befestigen von rohren in bohrungen von rohrplatten

Family Cites Families (9)

* 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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616523B1 (de) * 1976-04-14 1977-03-24 Balcke Duerr Ag Vorrichtung zum aufweiten von rohrenden innerhalb einer rohrscheibe
DE2622753A1 (de) * 1976-05-21 1977-12-01 Balcke Duerr Ag Verfahren zum druckdichten befestigen von rohren in bohrungen von rohrplatten

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125681A2 (fr) * 1983-05-16 1984-11-21 Haskel, Inc. Appareil pour former des jonctions étanches contre les fuites entre des tubes et un plateau à tubes
EP0125681A3 (fr) * 1983-05-16 1985-03-27 Haskel, Inc. Appareil pour former des jonctions étanches contre les fuites entre des tubes et un plateau à tubes
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

Also Published As

Publication number Publication date
ATE13823T1 (de) 1985-07-15
YU33182A (en) 1985-03-20
RO83450B (ro) 1984-02-28
DE3105735A1 (de) 1982-08-26
BR8200819A (pt) 1982-12-28
ES509639A0 (es) 1983-01-16
JPS57152334A (en) 1982-09-20
US4485547A (en) 1984-12-04
RO83450A (fr) 1984-02-21
CS235531B2 (en) 1985-05-15
AU548570B2 (en) 1985-12-19
CA1174573A (fr) 1984-09-18
AR228637A1 (es) 1983-03-30
AU8052582A (en) 1982-08-26
ZA82754B (en) 1982-12-29
DD201979A5 (de) 1983-08-24
PL137800B1 (en) 1986-07-31
EP0058385B1 (fr) 1985-06-19
PL235098A1 (fr) 1982-09-13
DE3105735C2 (de) 1983-05-26
ES8301694A1 (es) 1983-01-16

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