WO2003052314A1 - Device and method for draining condensate - Google Patents
Device and method for draining condensate Download PDFInfo
- Publication number
- WO2003052314A1 WO2003052314A1 PCT/DE2002/004577 DE0204577W WO03052314A1 WO 2003052314 A1 WO2003052314 A1 WO 2003052314A1 DE 0204577 W DE0204577 W DE 0204577W WO 03052314 A1 WO03052314 A1 WO 03052314A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- condensate
- switching means
- outlet channel
- channel
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/12—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure
- F16T1/14—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure involving a piston, diaphragm, or bellows, e.g. displaceable under pressure of incoming condensate
Definitions
- the invention relates to a device and a method for emptying condensate, in particular in a pneumatic system according to the preamble of claims 1 and 12 respectively.
- Condensate separators are known from the prior art as pneumatic components, which can be emptied manually or automatically, for example by means of an electromagnetic valve.
- Air dryers with, for example, hydrophilic material for pneumatic line systems are also known, but must be replaced in a certain maintenance cycle.
- the object of the present invention is a device or a
- the device according to the invention for emptying condensate in particular a pneumatic system, has a housing with at least one inlet channel leading into the interior of the housing.
- the working medium of the pneumatic system can be acted upon in this inlet duct.
- the working medium will usually be air, but other gases or gas mixtures are also conceivable for this system.
- switching means are arranged in the housing of the device according to the invention, which provide a connection between the inlet channel and a first and can mediate a second outlet channel.
- the at least one second outlet channel of the housing is advantageously opened by the switching means if the at least one inlet channel is pressure-free.
- the condensate collected inside the housing of the device can automatically flow out of the housing through a second channel when the device for emptying the condensate or the pneumatic system is switched off.
- the accumulated condensate can be drained off automatically.
- the component can also be realized in a relatively small space, with simple plastic components and can be integrated into any existing pneumatic system without great effort.
- the claimed method thus enables an extremely simple condensate drainage of a pneumatic system that can be carried out without great maintenance.
- the switching means is advantageously pressure-operated to open and / or close the at least one second outlet channel.
- the component described does not require any further electrical or electronic control.
- the device for condensate separation according to the invention can have switching means which contact the device against the inlet channel of the device
- Such an implementation does not require any additional external control, is simple to design and therefore only requires a correspondingly small installation space.
- a pneumatic device can be made almost entirely of plastic, which leads to a significant reduction in the weight of such a system.
- the second outlet channel which is provided for emptying the condensate, is advantageously closed by the switching means when the inlet channel is pressurized. In this way there is a minimal loss of pneumatic equipment for the System possible, so that the condensate can accumulate in the device over a certain time.
- the pressure-driven switching means of the device according to the invention can be designed in a simple manner as mechanical switching means.
- the entire switching means can advantageously be arranged in the interior of the housing, so that no switching means or switching lines have to be led out of the housing.
- the housing of the device according to the invention can therefore be hermetically sealed, so that it is advantageously possible to dispense with complex lead-through seals, for example for electrical supply lines.
- the mechanical switching means of the device according to the invention can be preloaded by means of elastic elements in relation to the pressure which is applied, for example, to the inlet duct. It is thus possible in a simple manner to implement a system which leads to an automatic drainage of condensate in the pressure-free state.
- elastic elements for example, spring elements or other types of elastic elements can be used to keep the outlet channel open for the condensate in the pressure-free state of the device. If a pneumatic system with an integrated device according to the invention for separating condensate is depressurized, the condensate that has meanwhile accumulated in the housing of the device automatically flows out of the arrangement.
- the housing interior is closed by at least one membrane connected to the switching means
- the membrane enables the subspaces to be sealed well against one another in a simple manner, so that the tightness of the device is ensured even without extreme demands on the manufacturing tolerances of individual components of the device according to the invention.
- the division of the interior of the device according to the invention by means of at least one membrane can ensure that there is a connection between the inlet duct and the air outlet duct at all times.
- the device according to the invention has at least one impact surface that is as perpendicular as possible to the direction of the device flowing working medium-condensate mixture is arranged.
- This arrangement prevents the condensate from being entrained by the flow between the inlet duct and an outlet duct for the working medium, which would have a negative effect on the separation of the condensate from the working medium.
- the flow deflection and swirling of the working medium-condensate mixture achieved by the middle of the impact surface leads to a significantly better separation of the condensate from the working medium of the pneumatic system.
- Figure 1 shows a cross section through a first embodiment of an inventive
- FIG. 2 shows a section through a second exemplary embodiment of the device for condensate separation and emptying
- Figure 3 shows a section through a third embodiment of an inventive device for condensate separation.
- the device according to the invention for separating condensate in the embodiment according to FIG. 1 has a housing 10 into which an inlet channel 12 and a first outlet channel 14 and a second outlet channel 16 lead out.
- the housing 10 of the device for draining condensate consists of an upper housing part 18 and a lower housing part 20, which are firmly connected to one another via a screw connection 22 are sealed against each other by means of an O-ring 24. Snap or snap connections between the housing parts are of course also possible in other exemplary embodiments.
- the housing 10 encloses a housing interior 26 in which switching means 28 are arranged to be movable.
- the switching means 28 consist, among other things, of a stem-shaped closure 30 to which a guide rod 32, in the exemplary embodiment in FIG. 1, is attached in one piece.
- the guide rod 32 engages with its end 34 opposite the stem-shaped end of the closure 30 into a guide groove 36, which is provided in a housing inner wall 38 of the housing 10 of the device according to the invention.
- the stem-shaped closure 30 of the switching means 28 is raised in the unpressurized state of the device according to the invention by a spring element 40 relative to the opening 42 of the second outlet channel 16, so that the second outlet channel 16 is opened in the unpressurized state of the device according to the invention.
- the spring element 40 is supported on the one hand on a wall 44 of the opening 42 of the second outlet channel 16 and on the other hand on a recess 46 on the underside 48 of the stem-shaped closure 30 facing the opening 42.
- the spring element 40 is supported on the one hand on a wall 44 of the opening 42 of the second outlet channel 16 and on the other hand on a recess 46 on the underside 48 of the stem-shaped closure 30 facing the opening 42.
- Outlet channel 16 is inserted a sealing ring 50 which, when the switching means 28 is actuated appropriately, together with the stem-shaped closure 30, tightly closes the second outlet channel 16 of the device according to the invention.
- the stem-shaped closure 30 is encompassed on its guide rod 32 by an adjusting lever 52 which is rotatably mounted about an axis 54 in the housing interior 26 of the device according to the invention. With its other end 55 facing away from the closure 30, the adjusting lever 52 is arranged in the unpressurized state of the device according to the invention in front of the inner opening 56 of the inlet channel 12 into the interior 26 of the housing.
- the condensate flowing in at the inlet channel 12 in drop form together with the pneumatic working medium strikes a baffle plate 58 which, in the exemplary embodiment in FIG. 1, is designed as an additional, elastic sealing element 60 at the second end 55 of the actuating lever 52. Strikes the condensate on the baffle plate 58 or on the housing walls surrounding the housing interior 26, such as the Housing wall 38, the condensate drips down due to gravity, that is, in the direction of the second outlet channel 16. Because of this separation of the pneumatic working medium from the condensate, caused in particular by the baffle plate 58, the condensate can no longer escape directly through the first outlet channel 14 with the outflowing working medium, for example air.
- the actuating lever 52 When the pneumatic working medium flows in at the inlet channel 12, the actuating lever 52 is pressed away by its top end 55 from the opening 56 of the inlet channel 12 due to the resulting dynamic pressure.
- the adjusting lever 52 which is rotatably mounted about the axis 54, exerts a force on the stem-shaped closure via its first arm 62
- the stem-shaped closure 30 becomes with its underside 48, mediated by the actuating lever 52, brought into contact with the sealing ring 50.
- the opening 42 and thus also the second outlet channel 16 of the housing 10 is thus closed, so that a further outflow of the pneumatic working medium through the second outlet channel 16 is prevented.
- the beginning pressure build-up in the housing also acts on the stem-shaped
- Closure 30 with a closing force which results from the pressure prevailing in the interior 26 of the housing and the closure surface. As long as the pressure inside 26 of housing 10 is maintained, the device according to the invention is tightly closed at its second outlet channel 16. A pneumatic system or corresponding connecting lines of such a system can thus be used via the
- Inlet channel 12 and the first outlet channel 14 build up a corresponding pressure in the system or maintain such a pressure.
- the stem-shaped closure 30 is pressed upward by the spring force of the spring element 40 from the opening 42 of the second outlet channel 16 of the housing 10 and opened a connection of the housing interior 26 with the surroundings of the system via the second outlet channel 16.
- the condensate separated and accumulated in the housing interior 26 can flow out through the second outlet channel 16 opened in this way.
- the adjusting lever 52 is simultaneously pivoted again in front of the opening 56 of the inlet channel 12, mediated via the spring element 40 and the stem-shaped closure 30, so that the device according to the invention on its second outlet channel 16 again when the pneumatic working medium flows in again can be closed.
- FIG. 2 shows a second embodiment of an inventive device for condensate separation and emptying.
- An inlet channel 212 leads into a housing 210, a first outlet channel 214 and a second outlet channel 216 lead out of the housing 210 again.
- the housing 210 consists of an upper housing part 218 and a housing base 219 which is sealed off from the upper housing part 218 by means of a sealing ring 221.
- Switching means 228 in the form of a piston 230 and a spring element 240 are movably arranged in the housing interior 226.
- the piston 230 carries on its lower, the
- the housing base 219 of the housing projects with a ring-shaped guide flange 232 to a certain extent along the inside of the housing upper part 218 into the housing interior 226.
- the inner diameter of the guide collar 232 of the housing base 219 is just large enough that the piston 230 can be inserted flush into its interior.
- the spring element 240 is fitted in such a way that in the depressurized state of the device according to the invention, the piston 230 against an upper stop surface 244 on the Inner wall of the housing part 218 is pressed.
- the inner wall of the upper housing part 218 also has an annular guide ring 245 which, in the exemplary embodiment, is formed in one piece with the upper housing part 218 and protrudes a little into the interior 226 of the device according to the invention.
- the inlet channel 212 of the device according to the invention opens into the inner region of the guide ring 245 via an opening 256.
- the first outlet channel 214 is connected to the housing interior 226 via an opening 247 which is formed between the guide ring 245 and the inside of the upper housing part 218.
- the axial distance between the guide ring 245, the inside of the upper housing part 218 is formed and the guide ring 232 of the housing base 219 is a small piece shorter than the axial length of the switching piston 230.
- the condensate flowing in with the pneumatic working fluid meets the as
- the pneumatic working fluid separated from the condensate in this way can be operated in this position
- Switch piston 230 open, first outlet channel 214 flow to the consumer or another component of the pneumatic system.
- Spring element 240 pushes the piston 230 back into the guide ring 245 and thus simultaneously opens the opening 242 in the housing base 219.
- the condensate collected in the interior 226 of the housing can flow past the switching piston 230 through the second outlet channel 216 from the housing 210 so that the interior 226 of the housing is emptied of the condensate. If the device according to the invention is pressurized again via the inlet channel 212, the pressure applied to the piston surface 266 in turn displaces the switching piston 230 in such a way that the second outlet channel 216 is closed, but the first outlet channel 214 can be flowed through by the pneumatic working medium.
- FIG. 3 shows a third embodiment of the device for draining condensate according to the invention in a cross section.
- the housing 310 has an inlet channel 312, a first outlet channel 314 and a second outlet channel 316.
- the housing 310 is formed by an upper housing part 318 and a lower housing part
- the individual housing parts are sealed off from one another with a sealing ring 324 or 325 and are pressed firmly against one another by fastening means (not shown).
- the first sealing ring 324 which is inserted into the wall 338 of the upper housing part or into the wall 339 of the intermediate ring 319, is formed in one piece with a first membrane 370. Together with a piston 330, which is let into the first membrane 370, the first membrane 370 divides the housing interior 326 into a first compartment 372 and a second compartment 374.
- the second sealing ring 325 which is correspondingly inserted into the wall 376 of the intermediate ring 339 and into the wall 378 of the lower housing part 320, is formed in one piece with a second membrane 371.
- the second membrane 371 carries a membrane plug 380 and divides the housing interior 326 of the device according to the invention into the second compartment 374 and a third compartment 382.
- the inlet duct 312 and the first outlet duct 314 open into the first subspace 372 of the housing interior 326 of the device according to the invention. Furthermore, in the first subspace 372 there is a locking piston 384 which is movably mounted in a guide receptacle 386 which projects into the interior 372.
- the mixture of pneumatic working fluid and condensate flowing in at the inlet channel builds up a pressure in the first subspace 372 of the housing interior 326 of the device according to the invention.
- the first subspace 372 is formed by the upper housing part 318, the first membrane 370 and the piston 330.
- the pressure in the first subspace 372 acts on the Locking piston 384 and the first membrane 370, so that the working piston 330 is pressed in the direction of the second outlet channel 316.
- the pressure acting on the piston 330 is counteracted by a spring element 340, which is biased between the working piston 330 and the membrane plug 380 in a repulsive manner.
- the membrane plug 380 is in turn by a second spring element 341 of the
- Opening 342 of the second outlet channel 316 is raised.
- the second spring element 341 is supported between the inner wall of the lower housing part 320 and a bearing ring 388 of the membrane plug 380.
- the pressure built up in the first subspace 372 of the housing interior 326 acts against the spring action of the first spring element 340 and the second spring element 341 via the working piston 330 and the first membrane 370.
- the switching piston 330 moves downward, its sealing edge 390 first hits the second membrane 371 and thus seals the second subspace 374 from the third subspace 382 of the housing interior 326 of the device according to the invention.
- the second partial space 374 of the housing interior 326 is formed by the intermediate ring 319, the first membrane 370, the working piston 330, the second membrane 371 and the membrane plug 380.
- the condensate which has in the meantime been separated and accumulated in the partial space 372 can pass along the surface of the first membrane 370 and through the bore 398 of the working piston 330 into the second partial space 374 of the housing interior.
- the mixture of pneumatic working fluid and condensate entering through the inlet channel 312 flows against an impact surface 358 in the area of the inlet opening 356 of the inlet channel 312 of the device according to the invention.
- This impact surface 358 prevents a direct flow through the device according to the invention, so that the in the working means of the pneumatic system existing condensate components cannot be entrained due to a direct and therefore correspondingly strong flow between the inlet duct and the opened, first outlet duct.
- the membrane plug 380 is against the spring action of the spring element 341 in the direction of the opening 342 of the second outlet channel 316 of the inventive
- the passage between the first partial space 372 and the second partial space 374 of the interior 326 of the housing increases, so that a better drainage of the separated and accumulated condensate into the second partial space 374 is made possible.
- Housing interior 326 of the working piston 330 is again moved in the direction of the locking piston 384 by the spring elements 340 and 341, respectively.
- the displacement of the membrane plug 380 is limited by a hook-shaped collar 400 at its end facing the outlet channel 316, by the collar 400 of the membrane plug 380 engaging in a corresponding hook-shaped collar 401, which is formed in one piece on the wall of the lower housing part 320 with its sealing edge 390 from the second membrane 371 and thus enables the condensate collected in the second subspace 374 to exit through the inner bore 399 of the membrane plug 380 into the second Outlet channel 316, which is open to the environment or can also lead to a collecting vessel.
- the switching means 328 which are formed in the exemplary embodiment in FIG. 3, by the sealing piston 384, the first membrane 370, the working piston 330, the first
- Spring element 340, the second membrane 371, the membrane plug 380, and the second spring element 341, return to their initial state for the unpressurized device and the previously described process for closing the second outlet channel 316 for the accumulated condensate can with the next pressure build-up over the invention Start the device again.
- the device for draining condensate according to the invention is not limited to the embodiments shown in FIGS. 1 to 3.
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002360897A AU2002360897A1 (en) | 2001-12-15 | 2002-12-16 | Device and method for draining condensate |
DE10295896T DE10295896D2 (en) | 2001-12-15 | 2002-12-16 | Device and method for draining condensate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10161711.9 | 2001-12-15 | ||
DE2001161711 DE10161711A1 (en) | 2001-12-15 | 2001-12-15 | Condensate emptying device has switching mechanism including at least one second outlet channel in casing to open it if inlet channel is without pressure |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003052314A1 true WO2003052314A1 (en) | 2003-06-26 |
Family
ID=7709369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/004577 WO2003052314A1 (en) | 2001-12-15 | 2002-12-16 | Device and method for draining condensate |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002360897A1 (en) |
DE (2) | DE10161711A1 (en) |
WO (1) | WO2003052314A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1036548A (en) * | ||||
US3130741A (en) * | 1960-11-25 | 1964-04-28 | White S Dental Mfg Co | Liquid purging systems |
DE1814301A1 (en) * | 1967-12-16 | 1969-08-07 | Tatra Np | Device for automatic draining of condensate in compressed air systems |
DE2935408A1 (en) * | 1979-09-01 | 1981-03-12 | Graubremse Gmbh, 6900 Heidelberg | Fluid drain valve for pneumatic system - includes differential ring piston to control valve outlet |
GB2096015A (en) * | 1981-04-06 | 1982-10-13 | Dewandre Co Ltd C | Condenser unit |
DE3214723A1 (en) * | 1982-04-21 | 1983-10-27 | Robert Bosch Gmbh, 7000 Stuttgart | Pneumatic brake system |
-
2001
- 2001-12-15 DE DE2001161711 patent/DE10161711A1/en not_active Withdrawn
-
2002
- 2002-12-16 DE DE10295896T patent/DE10295896D2/en not_active Expired - Fee Related
- 2002-12-16 WO PCT/DE2002/004577 patent/WO2003052314A1/en not_active Application Discontinuation
- 2002-12-16 AU AU2002360897A patent/AU2002360897A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1036548A (en) * | ||||
US3130741A (en) * | 1960-11-25 | 1964-04-28 | White S Dental Mfg Co | Liquid purging systems |
DE1814301A1 (en) * | 1967-12-16 | 1969-08-07 | Tatra Np | Device for automatic draining of condensate in compressed air systems |
DE2935408A1 (en) * | 1979-09-01 | 1981-03-12 | Graubremse Gmbh, 6900 Heidelberg | Fluid drain valve for pneumatic system - includes differential ring piston to control valve outlet |
GB2096015A (en) * | 1981-04-06 | 1982-10-13 | Dewandre Co Ltd C | Condenser unit |
DE3214723A1 (en) * | 1982-04-21 | 1983-10-27 | Robert Bosch Gmbh, 7000 Stuttgart | Pneumatic brake system |
Also Published As
Publication number | Publication date |
---|---|
DE10295896D2 (en) | 2004-10-28 |
DE10161711A1 (en) | 2003-06-18 |
AU2002360897A1 (en) | 2003-06-30 |
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