EP0222858B2 - Sectionneur de tuyau - Google Patents

Sectionneur de tuyau Download PDF

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Publication number
EP0222858B2
EP0222858B2 EP86903365A EP86903365A EP0222858B2 EP 0222858 B2 EP0222858 B2 EP 0222858B2 EP 86903365 A EP86903365 A EP 86903365A EP 86903365 A EP86903365 A EP 86903365A EP 0222858 B2 EP0222858 B2 EP 0222858B2
Authority
EP
European Patent Office
Prior art keywords
valve
outlet
bore
pipe separator
pressure
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
EP86903365A
Other languages
German (de)
English (en)
Other versions
EP0222858B1 (fr
EP0222858A1 (fr
Inventor
Hans Kern
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.)
Gruenbeck Wasseraufbereitung GmbH
Original Assignee
Gruenbeck Wasseraufbereitung GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6272562&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0222858(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gruenbeck Wasseraufbereitung GmbH filed Critical Gruenbeck Wasseraufbereitung GmbH
Priority to AT86903365T priority Critical patent/ATE40434T1/de
Publication of EP0222858A1 publication Critical patent/EP0222858A1/fr
Application granted granted Critical
Publication of EP0222858B1 publication Critical patent/EP0222858B1/fr
Publication of EP0222858B2 publication Critical patent/EP0222858B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/104—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using a single check valve
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/108—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves having an aerating valve
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88054—Direct response normally closed valve limits direction of flow

Definitions

  • the invention relates to a pipe separator according to the preamble of claim 1.
  • Such a pipe separator is known from DE-A-33 23 324.
  • a so-called injection pump is provided in series with a check valve, which generates a negative pressure when the medium is flowing, with which the pressure comparison valve is acted upon.
  • the object of the invention is to provide a pipe separator of the type described above, which is improved compared to the known type. In particular, it should have fewer switching vibrations.
  • the pipe separator 1 has an inlet 2 that can be connected to a pipe and an outlet 3 that can be connected to a pipe.
  • a slide 4 with a connecting channel 5 is provided between input 2 and output 3. As can be seen from FIG. 1, the slide connects input 2 and output 3 in the position shown, while in a second position, not shown, in which it is displaced transversely to the connecting channel, it separates the input and output.
  • the slide 4 extends with one end into a cylinder 6, in which it can slide back and forth as a piston depending on the pressure prevailing in the cylinder.
  • the interior of the cylinder 6 can be connected to the input 2 via a control valve 7 and a connecting line 8.
  • the control valve 7 has a valve chamber with a first section 9 and a second section 10.
  • the first section 9 is connected on the input side to the connecting line 8 forming the first input of the control valve and on the output side to the second section 10.
  • the second section is designed as a bore, which ends at its end facing away from the first section into a bore 11 of the slide 4, which in turn leads via an outlet bore 12 into the open or into a space which is at ambient pressure or at least with a pressure is applied, which is lower than the pressure prevailing when the flow medium is present at the inlet 2.
  • the second section 10 is connected to the interior of the cylinder 6 via transverse bores 13. It has valve seats 15, 16 both at its end facing the first section and at its end facing the bore 11.
  • a valve stem 17 is provided which extends through the second section and has a valve body 18 at its end facing away from the first section and a second valve body 19 at a distance therefrom which is greater than the distance between the two valve seats 15, 16.
  • the surface of the second valve body 19 facing the first section is larger than the area of the first valve body 18 which is acted upon over the second section.
  • the wall of the first section 9 opposite the second section 10 is formed by a membrane 21 firmly clamped at its edge by a control valve housing 20.
  • the valve stem 17 is extended so far through the first section that it passes through the membrane 21 with an abutment plate 22 and is firmly connected to the membrane 21 itself.
  • the control valve housing 20 On the side of the membrane facing away from the valve space, the control valve housing 20 forms a space 23 which is delimited by an abutment 24 on the side facing away from the membrane.
  • a compression spring 25 Arranged between the abutment 24 and the abutment plate 22 is a compression spring 25 which prestresses the membrane and thus the valve body into the second position via the abutment plate.
  • the space 23 is connected to the surroundings via a bore 26 which passes through the control valve housing.
  • the abutment plate 22 is fixedly connected via a connecting rod to a second pressure measuring device in the form of a second membrane 27 firmly clamped at its edges and arranged coaxially to the membrane 21.
  • the side of the second membrane facing the membrane 21 is connected to the environment via a bore 28, while the side of the second membrane facing away from the membrane 21 is connected to a connecting line 30 via a bore forming the second input of the control valve.
  • valve body 33 On the outlet side 3 there is a shut-off valve with a valve seat 32 arranged on the inlet side of the outlet 3 and a valve body 33 cooperating therewith.
  • the valve body 33 has on its rear side a valve stem 34 which is mounted in a suitable holder so as to be displaceable against the valve seat or movable away therefrom.
  • a compression spring 35 is provided on a suitable abutment, by means of which the valve body is biased towards the valve seat.
  • a 2-3-way valve 36 is provided. This has a housing 37 with a through this in the longitudinal direction extending cylinder bore 38. At one end of the cylinder bore, a cap 39 made of transparent material is provided, which is screwed to the housing. The cylinder bore 38 continues into the cap, but does not pass through it and is rather closed in one direction by the cap. On the side of the housing opposite the cap 39, a cylinder 40 is provided, in which a piston 41 is arranged such that it can be moved back and forth in the axial direction of the bore in the cylinder. The piston is fixedly connected to a control rod 42 which extends into the cylinder bore 38 and is guided by it.
  • the control rod 42 has at its end facing the cap 39 a first section 43, the diameter of which is smaller than that of the cylinder bore. This is followed by a second section 44, which has essentially the same diameter as the cylinder bore 38. This is followed by a third section 45, the diameter of which is in turn smaller than the diameter of the cylinder bore. This is followed by a fourth section extending up to the piston 41, the diameter of which is again essentially the same as that of the cylinder bore.
  • a compression spring 48 is provided between an abutment surface 47 of the housing and the piston 41, which pushes the piston and thus the control rod firmly connected to it into the position shown in FIG. 3, in which the piston moves away from the housing to the base of the cylinder 40 moved, biased.
  • the piston 41 and thus the control rod 42 can move back and forth between this first position and a second position shown in FIG. 4, in which the piston is moved against the spring action up to the housing and the control rod into the bore of the cap 39 will.
  • a first transverse bore 58 leading into the cylinder bore 38 is provided in the housing, which is arranged in such a way that in the second position shown in FIG. 2 a region opens into the cylinder bore 38 , in which the first section 43 of the control rod lies.
  • the first transverse bore 58 is connected to one end of a line 49, which ends at the other end on the outlet-side rear side of the valve body 33 in the outlet 3, as best shown in FIG. 1.
  • the cylinder bore 38 has a first section 51, the diameter of which is substantially equal to the diameter of the second section 44 of the control rod 42. This extends from the cap 39 to close to the end of the second section 44 of the control rod facing the piston 41. This first section is followed by a second section 52 directed toward the piston, the diameter of which is larger than the diameter of the second section 44 of the control rod.
  • a second transverse bore 50 is provided which opens into the upper end of the second section 52 of the cylinder bore facing away from the piston 41 and which is connected via a line 53 to the atmosphere or to the space into which the outlet bore 12 also opens .
  • a third transverse bore 54 is provided, which, as is shown in particular in FIGS. 3 and 4, opens into the lower end of the second section of the cylinder bore facing the piston rod and which connects to the bore 29 of the control valve 7 via a connecting line 30 and is connected to the second membrane chamber thereof.
  • sealing rings 55 and 56 are provided in the cylinder bore, which are arranged in the axial direction in such a way that, in the position shown in FIG. 4, a seal lies between the piston and the housing first space 57 and the cylinder bore and in the first position shown in FIG. 3, a seal between the second transverse bore and the third transverse bore takes place.
  • a connecting bore 70 is provided between the first space 57 and the first transverse bore 58. Furthermore, as can best be seen from FIG. 5, which shows the part encircled in FIG. 4 enlarged, between the first space 57 and the second formed between the rear side of the piston 41 facing away from the housing and the bottom of the cylinder 40 Room 59 provided a restricted path.
  • the piston has an annular groove 60 on its outer circumference, in which a loose ring seal 61, which is biased against the cylinder wall, is provided.
  • a throttle bore 62 is provided between the annular groove 60 and the surface of the piston facing the first space 57.
  • a bore which can be connected to an inlet 63 and in which a check valve 64 is arranged, which allows an inlet into the second chamber 59 and against a return from the second chamber into the inlet 63 locks.
  • the inlet 63 is connected via a line 65 in the manner best shown in FIG. 1 to the region 66 which is adjacent to the slide on one side and is delimited on the other side by the valve seat 32, that is to say when the valve body is seated 33 is closed towards the exit.
  • a membrane pressure accumulator 67 is also provided, which is connected to the outlet side 3 of the pipe separator via a bore 68 leading into the outlet chamber.
  • the pipe separator is initially in the flow position shown in FIG. 1.
  • the input 2 is acted upon by a liquid medium, which by the connecting channel 5, the valve 32, 33 and the output 3 flows to a consumer.
  • the medium flows via the line 8 into the valve chamber 9 and exerts a force on the membrane 21 in the direction of the first position of the control valve 7 shown in FIG. 1. This force is opposed by the force exerted on the second diaphragm 27 by the compression spring 25 and by the pressure of the medium applied via the connecting line 30.
  • the control valve 7 is in the first position shown in FIG. 1. In this position, the inside of the cylinder 6 is acted upon by the inlet-side pressure via the transverse bores 13 and the connecting line 8.
  • the prestressing of a compression spring 69 which prestresses the slide 4 into the blocking position is selected such that in this valve position, when there is a pressure on the inlet side which corresponds to the pressure which prevails at the inlet 2 when the flow medium is present at full pressure in the inlet side, the slide 4 is in the flow position shown.
  • the springs 25 and 35 are designed for 0.55 bar, while the spring 48 is designed for 0.3 bar.
  • the valve body 33 If the pressure prevailing at the inlet 2 falls below a value predetermined by the spring sizes relative to the pressure prevailing at the outlet 3, the valve body 33 first goes into the closed position shown in FIG. 2. At the same time, the check valve 64 closes.
  • the spring 48 causes the piston 41 to displace the liquid in the second chamber 59 via the throttle bore 62 into the first chamber 57 and the piston moves from the position shown in FIG. 4 to the position in FIG. 3 position shown moves.
  • the relatively higher pressure present at the outlet reaches the area above the diaphragm 27.
  • the control valve is moved into its second position, shown in FIG.
  • valve body 19 is separated from the second section 10 and the interior of the cylinder 6 is connected to the bore 11 by lifting the valve body 18 from the valve seat 16.
  • the pressure in the interior of the cylinder 21 decreases, so that the compression spring 69 moves the slide 4 into its second position, shown in FIG. 2, in which the inlet and outlet are separated.
  • the pipe separator remains in the blocking position shown in FIG. 2, and the small amount of water is removed from the diaphragm pressure accumulator 67 in a known manner.
  • the third position shown in FIG. 6 is reached.
  • the slide 4 and the check valve 64 are in the flow position.
  • the piston 41 has moved from the position shown in FIG. 3 to the position shown in FIG. 4. This is achieved in that the valve 32, 33 is subjected to a greater pre-tension than the product from piston 41 in connection with the spring 48.
  • the pressure holding effect between line 65 and 49 is greater in the valve 32, 33 than between piston 41 and Spring 48.
  • a small amount of water can be removed via lines 65 and 49. If the amount of water decreases again somewhat, the check valve 64 is first moved back into the blocking position, and then the return movement of the piston 41 starts from the position shown in FIG. 4 to the position shown in FIG. 3. If the amount of water increases again before the lowest piston position shown in FIG. 3 is reached, the piston goes up again without the slide 4 going into the disconnected position in between.
  • the valve 36 thus brings about damping and reducing the switching frequency of the slide 4.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)
  • Control Of Fluid Pressure (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Fluid-Driven Valves (AREA)
  • Safety Valves (AREA)

Abstract

Sectionneur de tuyau (1) possédant une vanne-pilote (7) pour actionner une vanne d'arrêt (4). Afin d'accroître la durée de vie de cette dernière en évitant une fréquence de manoeuvre inutilement élevée, il est prévu en plus un distributeur 2-3 (36), lequel fait fonction d'organe anti-vibratoire.

Claims (5)

1. Sectionneur de canalisation comprenant un dispositif d'arrêt (4) qui, dans une première position, relie une entrée (2) à une sortie (3) du sectionneur (1), tandis que, dans une deuxième position, il isole l'entrée (2) de la sortie (3), comprenant une soupape pilote (7), constituée par une soupape d'équilibrage de la pression qui est chargée sur une première face (9), par la pression régnant à l'entrée (2) et, sur la deuxième face, par la pression régnant à la sortie (3), pour placer le dispositif d'arrêt (4) dans la première ou la deuxième position, une soupape d'arrêt (32, 33) précontrainte dans le sens qui tend à la placer dans une position qui arrête l'écoulement de l'entrée (2) vers la sortie (3), et un clapet anti-retour (64) qui, en présence d'un petit prélèvement d'eau, contourne la soupape d'arrêt (32, 33) par une dérivation (65, 49),
caractérisé par le fait qu'il est prévu, en série avec le clapet anti-retour (64), un dispositif à valve (36) commandé hydrauliquement qui charge la deuxième face de la soupape (7) d'équilibrage de la pression par la pression régnant à la sortie (3) dans une première position de valve et par l'atmosphère dans une deuxième position de valve.
2. Sectionneur de canalisation selon la revendication 1, caractérisé par le fait que le dispositif (36) constitue un élément temporisateur.
3. Sectionneur de canalisation selon la revendication 2, caractérisé par le fait que l'élément mobile (41) du dispositif (36) présente un passage comportant un effet d'étranglement entre les deux faces opposées de cet élément mobile.
4. Sectionneur de canalisation selon une des revendications 1 à 3, caractérisé par le fait que le dispositif (36) est constitué par un distributeur 2-3.
5. Sectionneur de canalisation selon une des revendications 1 à 4, caractérisé par une indication optique (43, 37) signalant l'état de fonctionnement du dispositif (36).
EP86903365A 1985-06-05 1986-06-05 Sectionneur de tuyau Expired - Lifetime EP0222858B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86903365T ATE40434T1 (de) 1985-06-05 1986-06-05 Rohrtrenner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3520250 1985-06-05
DE19853520250 DE3520250A1 (de) 1985-06-05 1985-06-05 Rohrtrenner

Publications (3)

Publication Number Publication Date
EP0222858A1 EP0222858A1 (fr) 1987-05-27
EP0222858B1 EP0222858B1 (fr) 1989-01-25
EP0222858B2 true EP0222858B2 (fr) 1992-03-11

Family

ID=6272562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86903365A Expired - Lifetime EP0222858B2 (fr) 1985-06-05 1986-06-05 Sectionneur de tuyau

Country Status (5)

Country Link
US (1) US4745946A (fr)
EP (1) EP0222858B2 (fr)
JP (1) JPS63500051A (fr)
DE (2) DE3520250A1 (fr)
WO (1) WO1986007400A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626825A1 (de) * 1986-08-08 1988-02-18 Gruenbeck Josef Wasseraufb Rohrtrennung mit einer sperreinrichtung und eine ueberwachungseinrichtung fuer die sperreinrichtung
DE3762532D1 (de) * 1987-08-31 1990-06-07 Honeywell Braukmann Gmbh Trinkwasser-durchflussarmatur.
DE4101114C1 (fr) * 1991-01-16 1992-06-04 Gruenbeck Wasseraufbereitung Gmbh, 8884 Hoechstaedt, De
DE4142866C2 (de) * 1991-12-23 1994-03-03 Gruenbeck Josef Wasseraufb Rohrtrenner
DE4204386C2 (de) * 1992-02-14 1994-01-20 Honeywell Braukmann Gmbh Systemtrenner
DE19819852C2 (de) * 1998-05-05 2000-09-07 Gruenbeck Josef Wasseraufb Rohrtrennvorrichtung und hydraulisch angetriebene Hebevorrichtung mit einer solchen Rohrtrennvorrichtung
US20040231721A1 (en) * 2002-10-18 2004-11-25 Rand Ackroyd Spill-resistant relief valve
US20180289556A1 (en) 2017-04-11 2018-10-11 Ipcapital Group, Inc. Wound covering apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849825C2 (de) * 1978-11-17 1984-05-10 Lang Apparatebau GmbH, 8227 Siegsdorf Trinkwasser-Durchflußarmatur mit in eine Trinkwasserversorgungsleitung eingebautem Durchflußwächter
DE3247325C2 (de) * 1982-12-21 1990-02-15 Grünbeck Wasseraufbereitung GmbH, 8884 Höchstädt Rohrtrenner
DE3323324C3 (de) * 1983-06-29 1995-10-12 Schubert & Salzer Gmbh & Co In Verfahren und Vorrichtung zum Steuern eines Rohrtrenners in Abhängigkeit einer an einer Vergleichsstelle vorgegebenen Druckdifferenz
DE3442748A1 (de) * 1984-11-23 1986-05-28 Lang Apparatebau GmbH, 8227 Siegsdorf Vorrichtung zum schutz von trinkwasserleitungen

Also Published As

Publication number Publication date
DE3520250A1 (de) 1986-12-11
DE3520250C2 (fr) 1989-03-02
US4745946A (en) 1988-05-24
JPS63500051A (ja) 1988-01-07
EP0222858B1 (fr) 1989-01-25
EP0222858A1 (fr) 1987-05-27
WO1986007400A1 (fr) 1986-12-18
DE3661950D1 (en) 1989-03-02

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