EP0240728B1 - Tuyau à dispositif de séparation - Google Patents

Tuyau à dispositif de séparation Download PDF

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Publication number
EP0240728B1
EP0240728B1 EP87103133A EP87103133A EP0240728B1 EP 0240728 B1 EP0240728 B1 EP 0240728B1 EP 87103133 A EP87103133 A EP 87103133A EP 87103133 A EP87103133 A EP 87103133A EP 0240728 B1 EP0240728 B1 EP 0240728B1
Authority
EP
European Patent Office
Prior art keywords
flow
separating device
closure elements
opening
driving
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
EP87103133A
Other languages
German (de)
English (en)
Other versions
EP0240728A1 (fr
Inventor
Franz Lechermeier
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.)
Rieter Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Schubert und Salzer Maschinenfabrik AG
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 Schubert und Salzer Maschinenfabrik AG filed Critical Schubert und Salzer Maschinenfabrik AG
Priority to AT87103133T priority Critical patent/ATE47211T1/de
Publication of EP0240728A1 publication Critical patent/EP0240728A1/fr
Application granted granted Critical
Publication of EP0240728B1 publication Critical patent/EP0240728B1/fr
Expired 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

Definitions

  • the present invention relates to a pipe separator (valve for preventing the backflow between a removal line and an inflow ventilation) with a flow opening and a ventilation opening and two closure elements associated with these openings, which are coupled to one another in such a way that the flow opening or the ventilation opening is alternately closed or opened is. Furthermore, in this device a drive surface is provided which delimits a drive chamber which is connected to the inflow side of the pipe separator and by means of which the closure elements are brought into the flow position by the own medium.
  • a return spring which brings the closure elements back into the ventilation position, ensures that when the inflow pressure of the liquid ceases to exist, the liquid that has already escaped from the supply line can be sucked back by one closure element closing the flow opening and the other closure element opening the ventilation opening (see, e.g. B. DE-A-1 550 095).
  • a three-way solenoid valve that can be controlled by the removal device or two two-way solenoid valves is usually installed in front of the pipe separator. By closing the dispensing valve, the solenoid valve in front of the pipe separator is at the same time shut off and set to "venting", so that the pressure in front of the pipe separator is removed and the pipe separator and ventilation is carried out.
  • This solution is not only complex and expensive, but also requires a corresponding pipe length for the installation of the solenoid valves in front of the pipe separator.
  • the object of the present invention is to avoid these disadvantages and to provide a simple and safe-acting device which automatically carries out the separation and ventilation function both when the flow pressure drops and when the removal device is shut off.
  • the return spring is supported on a second drive surface which, with the side facing away from the return spring, delimits a second drive chamber which can be connected alternately to the inflow side of the pipe separator or to an emptying line via a control valve is, and the second drive surface is larger than the drive surface through which the closure elements are brought into the flow position.
  • This device is simple and space-saving and integrates the separation and ventilation function both in an emergency in the event of loss of flow pressure and in normal extraction operation. In the latter case, the movement into the corresponding operating position of the pipe separator takes place hydraulically without additional control means, since the flow pressure of the liquid is used for this hydraulic control movement.
  • the return spring is only used when the liquid pressure on the inflow side of the pipe separator drops to such an extent that this pressure is no longer sufficient for the hydraulic return of the closure elements to the ventilation and separation position.
  • the hydraulic control of the pipe separator has the great advantage that the pipe separator does not react to a certain absolute pressure given by the liquid, but rather to a pressure difference predetermined by the size of the drive surfaces.
  • the invention can be advantageously applied to pipe disconnectors of the most varied types.
  • the two closure elements can be moved in the flow direction to release the flow opening, the first drive chamber being located on the side of the return spring facing away from the closure elements.
  • the closure elements have the shape of a tubular closure body, that this is connected via cage-like axial struts to a support plate for a shaft carrying the first drive surface, and that arms also axially follow between the struts protrude on the inside and carry a stationary closure element which cooperates with the inside diameter of the closure body.
  • the two closure elements for opening the flow opening can be moved in the opposite direction to the flow direction and the first drive chamber is formed by the chamber of the pipe separator adjoining the flow opening.
  • the closure element controlling the flow opening receives an annular seal which, in the ventilation position, cooperates with a seat on the flow opening.
  • the device according to the invention is suitable not only for controlling water, but also for controlling other liquids, so that the term “sewage pipe ” also includes a pipe for discharging another liquid.
  • the housing 1 has a housing 1 which is arranged in a pipeline string which is formed from an inflow line 20 and an outflow line 30.
  • the housing 1 has an inlet connection 2 for connection to the inlet line 20 and an outlet connection 3 for connection to the outlet line 30 and a ventilation opening 12.
  • the inlet connection 2 is through an intermediate wall 10 with a closable flow opening 11 from the outlet connection 3 and the ventilation opening 12 separated.
  • the ventilation opening 12 is also connected to a funnel 4, which ends above a leakage water line, not shown.
  • a closure element 5 blocks the flow opening 11 for the flow of the medium or releases it.
  • a closure element 50 is provided for the ventilation opening 12 in order to alternately open or close the ventilation opening 12.
  • the closure elements 5 and 50 are rigidly connected to one another via a shaft 51 in such a way that one of the two openings 11 and 12 is always closed after switching the pipe separator from one operating position to the other, but that both openings 11 are in an intermediate position for a moment and 12 are closed.
  • the distance between the closure members 5 and 50 from one another is greater than the distance between the flow opening 11 and the ventilation opening 12.
  • a drive unit 6 is placed on the housing 1 and consists of a drive cylinder 67 with two drive pistons 60 and 68, which is closed by a cover or bottom 69.
  • the first drive piston 60 is fastened on the shaft 51, which connects the closure elements 5 and 50, and is sealed in a conventional manner from the inner wall of the drive cylinder 67.
  • the drive surface 600 of the piston 60 is acted upon by the medium to be controlled, which is located in the housing 1 on the inflow side.
  • the inflow side thus simultaneously forms a first drive chamber I for the piston 60.
  • a return spring 61 is supported on the inside of the piston 60 and presses with its other end against the inside of the second drive piston 68, the side facing away from the return spring 61, a second Drive chamber II limited.
  • the second drive piston 68 is connected to a sleeve 59, into which an extension 58 of the shaft 51 extends, on which the sleeve 59 slides. In this way, the two pistons 60 and 68 can move axially relative to each other.
  • the return spring 61 is thus arranged between the two pistons 60 and 68 in a space free of the medium to be controlled.
  • the drive chamber II is connected to the inflow line 20 via a medium feed opening 630 and a control line 8.
  • this control line 8 there is a control valve 80 designed as a 3/2-way valve, which in one position connects the inflow line 20 to the drive chamber 11 and in the other position connects the drive chamber 11 to an emptying line 81, which in the usual way via a Funnel, e.g. B. the funnel 4, opens into a leak water line, not shown.
  • a control device 82 is assigned to the control valve 80 and is connected to a sensing element 84 via a control connection 83. This scanning element 84 scans the current operating position of a valve 85 which is arranged on the outflow side of the pipe separator.
  • the control connection 83 can be mechanical, hydraulic, pneumatic or electrical in nature.
  • valve 85 When valve 85 is closed, the pipe separator is in the position shown in FIG. 1.
  • the control valve 80 connects the drive chamber II to the inflow line 20.
  • the outer annular surface 600 Of the end face of the drive piston 60 facing the drive chamber I, only the outer annular surface 600 is exposed to the inflow-side medium pressure and is therefore effective for the drive.
  • the inner part is covered by a valve cone 502 placed on the valve seat 110.
  • the end face of the second drive piston 68 facing the drive chamber II is completely exposed to the medium pressure in the drive chamber II.
  • the pressure in the drive chamber II and in the drive chamber I in the housing 1 is the same, since both chambers are connected to the inflow line 20 (see FIG. 1).
  • Due to the larger effective area of the second drive piston 68 the second piston 68 compresses the return spring 61 so far that the sleeve 59 rests on the piston 60 and thus moves the closure element 5 into the flow opening 11.
  • the valve cone 502 located on the piston 60 is pressed onto the valve seat 110.
  • the flow opening 11 is closed while the ventilation opening 12 is released.
  • the pipe separator is now in the ventilation or separation position and is inevitably held in this position by the medium pressure (Fig. 1).
  • the sensing element 84 delivers a corresponding control pulse to the drives Direction 82 of the control valve 80.
  • This control valve 80 then connects the drive chamber II with the drain line 81. This lowers the pressure in the drive chamber II. Due to the constant medium pressure in the first drive chamber I, the two pistons 60 and 68 together with that between them located return spring 61 moved toward the drive chamber II.
  • the closure element 5 fastened on the shaft 51 is moved with the drive piston 60 and thus the flow opening 11 is opened. Shortly before the flow opening 11 is opened, the closure element 50 blocks the ventilation opening 12, so that the medium can only flow through the drain line 30 (FIG. 2).
  • the first drive piston 60 presses the second drive piston 68 against the cover 69 and the return spring 61 so far that the piston 60 is supported on the sleeve 59.
  • the pipe separator is inevitably held in this position by the medium pressure.
  • the valve 85 is closed, the emptying line 81 is closed via the control valve 80 and the drive chamber II is reconnected to the inflow line 20. Due to the differently sized active surfaces of the two drive pistons 60 and 68, the drive piston 68 presses the return spring 61 together with the piston 60 back into the position shown in FIG. 1.
  • the pipe separator is again in its disconnect or ventilation position.
  • the pipe separator assumes its separation and ventilation position regardless of the position of the valve 85.
  • the return spring 61 takes effect and presses the drive piston 60 against the medium pressure which is decreasing in the drive chamber I and thus the valve cone 502 against the valve seat 110 in the separating and ventilation position.
  • the second drive piston 68 After the medium pressure has also dropped in the second drive chamber II, the second drive piston 68 maintains its position shown in FIG. 2, while the drive piston 60 and the closure elements 5 and 50 assume the position shown in FIG. 1. If the inflow-side pressure drops when the flow opening is closed (FIG. 1), the return spring 61 only presses the second drive piston 68 against the softening medium pressure in the drive chamber II into the position shown in FIG. 2.
  • the invention can be used with advantage in pipe separators of various types.
  • Fig. 4 shows another embodiment of a pipe separator.
  • a stationary piston-like closure element 52 and a tubular, axially movable closure element 53, the latter cooperating with the stationary closure element 52 in such a way that the flow of the medium is released or blocked off.
  • the stationary closure element 52 is fastened to a shaft 521 which is supported on the housing 13 by means of arms 520 and is held by the latter centrally to the movable closure element 53.
  • the tubular closure element 53 is axially movably guided in the housing 13 and, in its inflow-side end position, sealingly receives the closure element 52 and releases it in its outflow-side end position, so that the medium can flow through the tubular closure element 53.
  • An opening 32 is arranged in the housing part with the outlet connection 3, which adjoins the housing 13 and has an annular seal 320 on its circumference. In its end position on the discharge side, the closure element 53 moves into this opening 32 and thus connects the housing 13 to the discharge nozzle 3 while simultaneously releasing the medium flow through the stationary closure element 52.
  • the closure element 53 has an annular piston surface 530, via which the closure element 53 is connected by means of cage-like struts 531 to a support plate 532, which in turn is connected via a shaft 54 to a drive piston 60 '.
  • This drive piston 60 ' delimits a first drive chamber I which is connected to the inflow line 20 via a line 620.
  • a second drive piston 68' is slidably arranged on the shaft 54. Furthermore, the shaft 54 carries a sleeve 59 'which is loosely displaceable and which determines the minimum distance between the drive pistons 60' and 68 '.
  • a housing part with an inlet connection 2 on which the drive cylinder 671 for the drive pistons 60 'and 68' is placed.
  • This drive cylinder 671 forms with the base 21 and the drive piston 68 'a second drive chamber II, which is connected via a control line 8 to the control valve 80.
  • the drive cylinder 671 is offset because the piston 68' has a larger diameter than the piston 60 '.
  • the pipe separator is in its separation and ventilation position.
  • the control valve 80 has connected the control line 8 to the inflow line 20 via the line 620.
  • the inflow-side medium pressure acts in the drive chamber 11.
  • the closure element 52 closes the inside of the tubular closure element 53, which has moved out of the ring seal 320 in the end position shown.
  • Air is sucked into the opening 32 if a negative pressure should develop in the drain line 30.
  • the backflow preventer 31 opens the opening 32.
  • a valve 85 is opened on the outlet side of the pipe separator, the control valve 80 is switched over by the drive device 82, so that the control line 8 is connected to the drain line 81 via the control valve 80. Due to the softening medium pressure in the drive chamber II, the medium pressure in the drive chamber I can now move the drive piston 60 'and thus also the closure element 53 in the flow direction, so that the connection between the inflow nozzle 2 and the outlet nozzle 3 is established via the tubular closure element 53.
  • the return spring 61 is effective when the medium pressure on the inflow side is eliminated. Both the drive piston 68 'is pressed into its end position against the base 21 and the tubular closure element 53 is brought into its separation and ventilation position via the drive piston 60'.
  • Fig. 5 shows another embodiment of a pipe separator, in which the invention is applied in the same way and with the same advantage.
  • the pipe separator shown in FIG. 5 also has a housing 131 with an inlet connection 2 and an outlet connection 3 and a ventilation opening 12.
  • the inlet connection 2 is separated from the outlet connection 3 and the ventilation opening 12 by an intermediate wall 10 with a closable flow opening 11.
  • the ventilation opening 12 has an annular seal 120 and is located on a funnel-shaped housing part 42 above a leakage water line, not shown.
  • the piston-like closure element 55 is connected directly to the first drive piston 60 'via a shaft 54, while the second drive piston 63 is slidably arranged on this shaft and has a sleeve-like extension 64 for support against the drive piston 60'. While the first drive chamber I is permanently connected to the inflow line 20 via the line 620, the second drive chamber II is connected to the inflow line 20 or the drain line 81, depending on the position of the control valve 80.
  • Fig. 5 the flow position of the pipe separator is shown.
  • the closure element 55 closes the ventilation opening 12 of the funnel 42 to the leakage water line, while the flow opening 11 is released.
  • the drive chamber II is connected to the drain line 81, so that the medium pressure in the drive chamber I can keep the drive piston 60 'in the flow position. If the outlet valve 85 is closed, the control process takes place as described in connection with FIG. 4. It is important here that the effective drive area of the drive piston 63 is larger than the effective area of the drive piston 60 ', whereby it should be noted that the surface 56 of the piston-like closure element 55 opposite the flow flow is also to be assigned to the effective area of the drive piston 60'.
  • the return spring 61 comes into effect in the same way as described in connection with FIG. 4.
  • the piston-like closure element 55 closes the flow opening 11 and opens the ventilation opening so that air can be sucked in through this opening if a negative pressure should develop in the drain line 3.
  • the flow opening 11 and also the outlet 120 are closed for a moment, as already described in connection with FIGS. 1 and 2.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Multiple-Way Valves (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Claims (7)

1. Séparateur sur tuyauterie, comportant une ouverture de passage (11) et une ouverture (12) de mise à l'air libre ainsi que deux obturateurs (5, 50 ; 53, 55) qui correspondent à ces ouvertures et qui sont couplés l'un à l'autre de façon telle qu'altemativement c'est l'ouverture de passage ou l'ouverture de mise à l'air libre qui est ouverte ou fermée ; comportant en outre un piston d'entraînement (60, 60'), qui limite une chambre d'entraînement (I) qui est en liaison avec le côté arrivée du séparateur sur tuyauterie et au moyen de laquelle les obturateurs sont amenés, par le fluide lui-même, dans la position de passage ; et comportant un ressort de rappel (61), qui rappelle les obturateurs dans la position de mise à l'air libre, caractérisé en ce que le ressort de rappel (61) s'appuie contre un second piston d'entraînement (68, 68', 63) qui, par son côté opposé au ressort de rappel (61), limite une seconde chambre d'entraînement (2) que, par l'intermédiaire d'une vanne de commande (80), on peut alternativement relier au côté arrivée (20) du séparateur sur tuyauterie ou à une conduite de vidage (81) ; et en ce que la surface utile du second piston d'entraînement (68, 68', 63) est plus grande que la surface utile (600) du piston d'entraînement (60, 60') par lequel les obturateurs (5, 50 ; 55) sont amenés dans la position autorisant le passage.
2. Séparateur sur tuyauterie selon la revendication 1, caractérisé en ce que les deux obturateurs (53, 55) peuvent se déplacer dans le sens du passage pour libérer l'ouverture de passage (11).
3. Séparateur sur tuyauterie selon la revendication 1 ou 2, caractérisé en ce que la première chambre d'entraînement (I) se trouve du côté du ressort de rappel (61) opposé aux obturateurs (53 ; 55).
4. Séparateur sur tuyauterie selon les revendications 2 ou 3, caractérisé en ce que les obturateurs ont la forme d'un organe tubulaire d'obturation (53) ; et en ce que l'organe d'obturation (53) est relié par l'intermédiaire de tringles axiales (531), disposées à la façon d'une cage, avec une plaquette support (532) pour une tige (54) qui porte une première surface d'entraînement (60, 601) et en ce qu'en outre, entre les tringles (531), des bras (520) pénètrent radialement vers l'intérieur et portent un obturateur fixe (52) qui collabore avec le diamètre intérieur de l'organe d'obturation (53).
5. Séparateur sur tuyauterie selon la revendication 1, caractérisé en ce que les deux obturateurs (5, 50) peuvent se déplacer en sens opposé au sens du passage pour libérer l'ouverture de passage ; et en ce que la première chambre d'entraînement (I) est formée par la chambre du séparateur sur tuyauterie voisine de l'ouverture de passage (11).
6. Séparateur sur tuyauterie selon la revendication 5, caractérisé en ce que l'obturateur (5), qui commande l'ouverture de passage présente une garniture d'étanchéité annulaire (502) qui, dans la position de mise à l'air libre, collabore avec un siège (110) de l'ouverture de passage (11).
7. Séparateur sur tuyauterie selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce que les obturateurs (5 50 ; 53 ; 55) sont conçus de façon telle que par suite de la libération de l'ouverture de passage (11), c'est une surface d'entraînement plus grande qui devient utile pour le mouvement en direction de la position autorisant le passage et que, lorsque l'ouverture de passage (11) est fermée, c'est une plus petite surface d'entraînement qui est utile, étant précisé que la seconde surface d'entraînement est plus grande que la somme des surfaces d'entraînement agissant dans le sens de la position autorisant le passage.
EP87103133A 1986-04-10 1987-03-05 Tuyau à dispositif de séparation Expired EP0240728B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103133T ATE47211T1 (de) 1986-04-10 1987-03-05 Rohrtrenner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863612045 DE3612045A1 (de) 1986-04-10 1986-04-10 Rohrtrenner
DE3612045 1986-04-10

Publications (2)

Publication Number Publication Date
EP0240728A1 EP0240728A1 (fr) 1987-10-14
EP0240728B1 true EP0240728B1 (fr) 1989-10-11

Family

ID=6298370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103133A Expired EP0240728B1 (fr) 1986-04-10 1987-03-05 Tuyau à dispositif de séparation

Country Status (3)

Country Link
EP (1) EP0240728B1 (fr)
AT (1) ATE47211T1 (fr)
DE (2) DE3612045A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3824493A1 (de) * 1988-07-20 1990-01-25 Schubert & Salzer Maschinen Verfahren und vorrichtung zur steuerung von zwei mediumstroemen
US5143850A (en) * 1990-07-23 1992-09-01 Beckman Instruments, Inc. Detection of radioisotope labeled components in a capillary
CN1098986C (zh) * 1998-09-16 2003-01-15 宁波贵友电器有限公司 连动阀
CN108252368B (zh) * 2018-04-04 2024-04-26 厦门霖创卫浴有限公司 空气隔污装置和智能马桶

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE304421B (fr) * 1965-12-13 1968-09-23 Nybergs Mekaniska Verkstad Ab

Also Published As

Publication number Publication date
DE3760765D1 (en) 1989-11-16
ATE47211T1 (de) 1989-10-15
DE3612045C2 (fr) 1988-03-24
EP0240728A1 (fr) 1987-10-14
DE3612045A1 (de) 1987-10-15

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