EP0195389B1 - Déconnecteur de tuyaux - Google Patents
Déconnecteur de tuyaux Download PDFInfo
- Publication number
- EP0195389B1 EP0195389B1 EP86103494A EP86103494A EP0195389B1 EP 0195389 B1 EP0195389 B1 EP 0195389B1 EP 86103494 A EP86103494 A EP 86103494A EP 86103494 A EP86103494 A EP 86103494A EP 0195389 B1 EP0195389 B1 EP 0195389B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- closure
- throughflow
- orifice
- closure elements
- piston
- 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
Links
Images
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 with a flow opening and a ventilation opening and two closure elements assigned to 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, furthermore with drive surfaces by means of which the closure elements pass through the medium be brought into the flow position, and a return spring which brings the closure elements back into the ventilation position, as is known from EP-A-0 001 984.
- the closure elements - which can also be combined to form a combined closure body - are moved against the action of a return spring in order to close the ventilation opening and to open the flow opening.
- the return spring is tensioned, whereby it exerts an increasingly higher force against the adjusting movement of the closure body. If the pressure difference between the inflow and outflow sides of the pipe separator is small, there can be a balance between the medium pressure and the spring force before the closure elements have reached their end positions for the flow. This leads to undefined flow conditions.
- closure elements are designed in such a way that a larger drive surface or a smaller drive surface becomes effective for the movement into the flow position when the flow opening is opened.
- an additional force for the actuating movement in this direction is brought about and the increasing back pressure of the return spring is thus compensated.
- the return spring relaxes so that its spring force declines. So that a rapid movement of the closure elements into the ventilation position is also possible here, the drive surface counteracting the return spring is reduced.
- the pipe separator can be designed differently.
- the closure elements in the flow direction after the flow opening have an annular drive surface which is acted upon by the medium when the flow opening is released and thus causes an actuating thrust in the direction of flow release.
- the effect of this annular drive surface is eliminated, so that an additional actuating thrust is achieved in the direction of the release of the ventilation opening.
- the closure body is piston-like and has a first length section which blocks the flow opening and which has a smaller outer diameter than a second length section which closes the ventilation opening.
- the difference in diameter creates an additional drive surface, which is activated when the flow opening is released and becomes ineffective when the flow opening is closed.
- the closure body can also be tubular and have a first length section that receives a stationary sealing member and has a larger inner diameter than a second length section that closes the ventilation opening.
- an additional annular surface is activated after the flow is released and deactivated after the flow has been shut off, so that the same effect is achieved in relation to the actuating movement of the closure elements.
- closure elements for opening the flow opening can be moved in the opposite direction to the flow direction, then according to a further advantageous embodiment of the subject of the invention the closure element for controlling the flow opening has a larger diameter than the closure element for controlling the ventilation opening. This difference in diameter creates an additional drive surface which acts in the manner described.
- At least the closure element for controlling the flow opening has both a closure piston that works with a cylindrical sliding seat and a valve disk that projects radially above the closure piston and works with a flat support seat.
- the valve disk, which projects radially above the sealing piston, forms an additional drive surface, which comes into effect after the movement of the sealing elements in the direction of releasing the flow opening.
- the device according to the invention is simple in construction and can be implemented in a simple manner in the most varied types of pipe separators. In any case, an additional adjustment thrust is achieved after the start of the lifting movement of the closure elements, which brings the closure elements into their flow or ventilation position more quickly. This significantly increases the functional reliability of the pipe separator.
- sewage pipe in the sense of the present invention also includes a pipe for discharging such another medium.
- the pipe separator shown in FIG. 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.
- the housing 1 is also connected via a funnel 4 to a waste water line, not shown.
- the housing 1 has an intermediate wall 10 with a sliding seat 11 with which a closure member 5 cooperates.
- the sliding seat 11 delimits a flow opening 16.
- the closure member 5 and the sliding seat 11 together form a flow valve which blocks or releases the flow of the medium through the pipe separator.
- On the side facing the funnel 4, the housing 1 has a further sliding seat 12, which delimits a ventilation opening 17 and, together with a closure member 50, forms a ventilation valve.
- the closure members 5 and 50 are connected to one another via a connecting element 51 which, when the tube separator is switched from one operating position to the other, always closes one of the two valves 5, 11 and 50, 12. This is achieved in that the two valves 5, 11 and 50, 12 work in an overlapping manner in that, in an intermediate position, both valves 5, 11 and 50, 12 are temporarily in their closed position.
- the housing 1 On the side facing away from the funnel 4, the housing 1 has a drive cylinder 6 and a spring cover 62.
- a drive piston 60 Arranged in this drive cylinder 6 is a drive piston 60 connected to the closure members 5 and 50, which is sealed in a conventional manner against the inner wall of the drive cylinder 6 and is acted upon by the medium to be controlled on its side facing the housing 1.
- the side of the drive piston 60 facing the housing 1 thus forms a drive surface, by means of which the closure member 5 is brought into the flow-through position in order to open the flow-through opening 16 and to close the ventilation opening 17.
- the drive piston 60 is acted upon by a reset device designed as a return spring 61, which is supported with its free end on the inside of the spring cover 62.
- a backflow preventer 31 is arranged in the housing 1 on its side facing the drain line 30.
- the funnel 4 is connected in a suitable manner to the housing 1 via a transparent connecting piece 70.
- This is an integral part of a shield 7, which extends into the funnel 4 and shields ventilation openings 40 in the funnel 4, so that no splash water or the like can escape here.
- the flow valve formed by the closure member 5 and the sliding seat 11 is closed and the ventilation valve formed by the closing member 50 and the sliding seat 12 is opened.
- the housing interior 13 between these two valves 5, 11 and 50, 12 is thus connected to the atmosphere via the connecting piece 70, the shield 7 and the ventilation opening 40 in the funnel 4, while the backflow preventer 31 prevents the medium from flowing back in a known manner Drain line 30 is prevented. If the flow valve 5, 11 does not close tightly for some reason. enough air is sucked in in the manner described, so that sucking back of the medium from the outflow side of the pipe separator to its inflow side is definitely ruled out.
- closure member 50 In the position shown, the closure member 50 is located in the end of the funnel 4 facing the housing 1.
- the current operating position of the pipe separator can be recognized from the fact that the connecting element 51 connecting the closure members 5 and 50 extends through the transparent connecting piece 70.
- the drive piston 60 is displaced against the action of the return spring 61.
- the ventilation valve 50, 12 is closed by the closure member 50 immersed in the sliding seat 12. If the inflow-side pressure rises further, the closure member 5 releases the flow through the pipe separator by leaving the sliding seat 11. In this operating position of the pipe separator, the closure member 50 is completely immersed in the sliding seat 12 and thus enables the view through the connecting piece 70.
- the closure member 5 has an outer diameter D that is larger than the outer diameter d of the closure member 50.
- the sliding seats 11 and 12 also have correspondingly different diameters.
- a shorter and harder return spring 61 can be used compared to designing the pipe separator with closure members 5 and 50 of the same diameter, so that the overall height of the pipe separator becomes lower.
- the two valves 5, 11 and 50, 12 can be designed as pure slide valves. However, this is not absolutely necessary, as is shown using the example of the flow valve 5, 11.
- this has a closure member 5, which is composed of a closure piston 500 with sealing rings 501 in its circumferential wall and a valve disk 506 with an annular seal 502, which, with its end facing away from the drive piston 60, protrudes on a plane that projects beyond the intermediate wall 10 Support seat 110 that surrounds the flow opening can create.
- a closure member 5 which is composed of a closure piston 500 with sealing rings 501 in its circumferential wall and a valve disk 506 with an annular seal 502, which, with its end facing away from the drive piston 60, protrudes on a plane that projects beyond the intermediate wall 10 Support seat 110 that surrounds the flow opening can create.
- the ventilation valve 50, 12 can also be designed in the same way as a combined slide / seat valve.
- the closure member 50 likewise has a closure piston 503 with at least one sealing ring 504 in its peripheral wall and a valve disk 507 with an annular seal 505 for cooperation with a flat support seat 120 which surrounds the ventilation opening.
- the diameters d s of the closure pistons 500 and 503 of the two closure members 5 and 50 are of the same size. Since the diameter of the valve cone 506 with the ring seal 502 is larger than the closure piston 503, which can only be acted upon by the medium when the closure members 5 and 50 are in the flow position, the closure members 5 and 50 also move into the flow position after the start of the movement an additional thrust into the flow position is generated. If, however, the sealing piston 500 is selected to be larger than the sealing piston 503, a further actuating thrust into the flow position is achieved, while the actuating movement is braked when moving to the ventilation position. Defined switching ratios of the pipe disconnector are thus achieved in this exemplary embodiment as well.
- the pipe separator shown can be modified in a variety of ways by exchanging elements with one another or with equivalents or through other combinations.
- the unit consisting of the closure members 5 and 50 and the drive piston 60 need not be movable perpendicular to the course of the pipeline 20, 30, but can also be adjustable at an angle different therefrom.
- the closure members 5 and 50 also need not be separate elements which are connected to one another by means of a connecting element, but the closure members 5 and 50 can also be combined to form a combined closure member.
- FIG. 3 shows such a design of a pipe separator, in which the closure elements are combined to form a combined closure body and can be moved obliquely to the course of the pipeline string 20, 30.
- the combined closure elements are formed by a piston separating tube 8, which is longitudinally displaceable in a cylindrical housing 14.
- the housing 14 is arranged inclined to the pipeline string, the outflow line 30 being offset from the inflow line 20.
- the inflow-side end face 140 of the housing 14 carries a stationary sealing member 141 which projects into the piston separating tube 8 and bears sealingly thereon.
- the housing 14 has a sliding seat 12 with sealing rings 121, with which the outside of the piston separating tube 8 cooperates in the flow position.
- the housing 14 has an intermediate wall 142 which has an opening for guiding the piston separating tube 8.
- the return spring 61 is supported on this intermediate wall, the other end of which cooperates with a drive piston 63.
- This drive piston 63 is an integral part of the piston separating tube 8 and leaves its inside diameter D, free on the inflow side.
- the piston separating tube 8 has a first length section 80 on the inflow side with the inner diameter D 1, with which the stationary sealing member 141 cooperates, and a second length section 81 with an inner diameter d 1 smaller than the inner diameter D 1 .
- a ventilation opening 41 is opened between the piston separating tube 8 and the sliding seat 12. If the pressure of the medium now increases on the inflow side, the piston separating tube is moved in the direction of the sliding seat 12 with the aid of the drive piston 63. After the piston separating tube 8 has been sealingly immersed in the sliding seat 12 and thus has closed the ventilation opening 41, the sealing member 141 leaves the longitudinal section 80 of the piston separating tube 8. The medium thus enters the interior of the piston separating tube 8 and continues to flow into the drain connection 3, the Backflow preventer 31 releases the flow in a known manner.
- the piston separating tube 8 When flowing through the piston separating tube 8, the medium strikes the inner shoulder 82 of the piston separating tube 8, which is formed by the different sizes of the inner diameters D, and d, and which thus forms an additional annular drive surface. Thus, after the flow has been released, the piston separating tube 8 also receives an additional actuating thrust here, which accelerates the piston separating tube 8 into its final flow position. Likewise, the piston separating tube 8 receives an additional setting thrust when it returns to the ventilation position after the sealing member 141 is immersed in the piston separating tube 8 and prevents the flow through the piston separating tube 8, since the inner shoulder 82 is now no longer acted upon by the medium.
- the flow opening is formed by the interior of the length section 80 of the piston separating tube 8, while the closure member controlling this flow opening is formed by the length section 80, which receives the stationary sealing member 141 and cooperates with it.
- the ventilation opening 41 is located between the discharge-side end of the piston separating tube 8 and the sliding seat 12, while the closure member controlling this ventilation opening 41 is formed by the length section 81, which plunges into the sliding seat 12 and cooperates with it.
- a sliding seat 11 or 12 is provided for the flow opening and for the ventilation opening, similar to the design shown in FIG. 1 (FIG. 4).
- the closure body 9 is designed like a piston and has a first length section 90 for controlling the flow opening and a second length section 91 for controlling the ventilation opening.
- the length section 90 has an outside diameter d A that is smaller than the outside diameter D A of the length section 91.
- the diameters of the sliding seats 11 and 12 are also dimensioned accordingly, each receiving a sealing ring 111 or 121. Due to the different outer diameters D A and d A , the closure body has an outer shoulder 92.
- the closure body 9 is connected via a connecting element 52 to a spring plate 64 which is guided in a drive cylinder 6.
- the interior of the drive cylinder 6 is separated from the interior of the housing 1 by an intermediate wall 15, through which the connecting element 52 is sealingly guided.
- the return spring 61 of the pipe separator is located between the intermediate wall 15 and the spring plate 64.
- the locking body 9 If the pressure drops, the locking body 9 returns to its ventilation position due to the relaxing return spring 6. After immersing the length section 90 in the sliding seat 11, the outer shoulder 92 is no longer acted upon. The relieved return spring 61 thus brings the closure body 9 into the final flow position at an increased speed.
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)
- Fluid-Driven Valves (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Check Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Air-Flow Control Members (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86103494T ATE43384T1 (de) | 1985-03-18 | 1986-03-14 | Rohrtrenner. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853509720 DE3509720A1 (de) | 1985-03-18 | 1985-03-18 | Rohrtrenner |
DE3509720 | 1985-03-18 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0195389A2 EP0195389A2 (fr) | 1986-09-24 |
EP0195389A3 EP0195389A3 (en) | 1987-05-06 |
EP0195389B1 true EP0195389B1 (fr) | 1989-05-24 |
EP0195389B2 EP0195389B2 (fr) | 1994-06-22 |
Family
ID=6265575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86103494A Expired - Lifetime EP0195389B2 (fr) | 1985-03-18 | 1986-03-14 | Déconnecteur de tuyaux |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0195389B2 (fr) |
AT (1) | ATE43384T1 (fr) |
DE (2) | DE3509720A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3932402A1 (de) * | 1989-09-28 | 1991-04-11 | Schubert & Salzer Maschinen | Rohrtrenner zum be- und entlueften einer rohrleitung |
DE4142866C2 (de) * | 1991-12-23 | 1994-03-03 | Gruenbeck Josef Wasseraufb | Rohrtrenner |
WO2014040823A1 (fr) * | 2012-08-20 | 2014-03-20 | Hans Sasserath & Co Kg | Dispositif pour réaliser un rinçage hygiénique dans une installation hydraulique |
DE202012103132U1 (de) * | 2012-08-20 | 2013-11-22 | Hans Sasserath & Co. Kg | Ablaufanordnung für Wasserarmaturen |
CN115339751A (zh) * | 2021-05-12 | 2022-11-15 | 阿蓓亚塑料实业(上海)有限公司 | 一种容器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2594626A (en) * | 1946-09-09 | 1952-04-29 | Clarence E Earle | Safety valve |
CH470617A (de) * | 1967-01-14 | 1969-03-31 | Alfred Waletzko App Bau | Rohrabschlussventil |
DE2729305B2 (de) * | 1977-06-29 | 1980-04-17 | F.W. Oventrop Arn. Sohn Kg, 5787 Olsberg | Rohrtrenner |
DE2751468C2 (de) * | 1977-11-18 | 1984-06-28 | Honeywell-Braukmann GmbH, 6950 Mosbach | Rückflußverhinderer |
CH664201A5 (de) * | 1982-12-21 | 1988-02-15 | Gruenbeck Josef Wasseraufb | Rohrtrenner. |
DE3247325C2 (de) * | 1982-12-21 | 1990-02-15 | Grünbeck Wasseraufbereitung GmbH, 8884 Höchstädt | Rohrtrenner |
DE3309318A1 (de) * | 1983-03-16 | 1984-09-20 | Lang Apparatebau GmbH, 8227 Siegsdorf | Rueckflussverhinderer, insbesondere fuer trinkwasserleitungen |
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 |
-
1985
- 1985-03-18 DE DE19853509720 patent/DE3509720A1/de active Granted
-
1986
- 1986-03-14 EP EP86103494A patent/EP0195389B2/fr not_active Expired - Lifetime
- 1986-03-14 AT AT86103494T patent/ATE43384T1/de not_active IP Right Cessation
- 1986-03-14 DE DE8686103494T patent/DE3663549D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3663549D1 (en) | 1989-06-29 |
DE3509720C2 (fr) | 1993-04-15 |
ATE43384T1 (de) | 1989-06-15 |
EP0195389A2 (fr) | 1986-09-24 |
EP0195389B2 (fr) | 1994-06-22 |
DE3509720A1 (de) | 1986-09-25 |
EP0195389A3 (en) | 1987-05-06 |
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