SE451543B - AIR DRYING FOR PRESSURE AIR EQUIPMENT - Google Patents
AIR DRYING FOR PRESSURE AIR EQUIPMENTInfo
- Publication number
- SE451543B SE451543B SE8205673A SE8205673A SE451543B SE 451543 B SE451543 B SE 451543B SE 8205673 A SE8205673 A SE 8205673A SE 8205673 A SE8205673 A SE 8205673A SE 451543 B SE451543 B SE 451543B
- Authority
- SE
- Sweden
- Prior art keywords
- dehumidifier
- pressure
- air
- compressed air
- valve
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/09—Air conditioning, e.g. de-watering, in pneumatic systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Transportation (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Gases (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Description
15 20 25 30 35 451 543 Vid användning av en tryckregulator kan en där anbragt tryckströmställare avge en ingångssignal för den elektro- niska kopplingsanordningen, men det är även möjligt och fördelaktigt att .utföra den elektroniska kopplingsanord- ningen med direkt däri integrerad tryckberoende kopplinge- anordning. When using a pressure regulator, a pressure switch arranged therein can emit an input signal for the electronic coupling device, but it is also possible and advantageous to design the electronic coupling device with a pressure-dependent coupling device directly integrated therein. .
Enligt en ytterligare egenskap hos uppfinningen är det dessutom fördelaktigt att använda en luftmassemätare, efter- som luftmassan vid fuktig luft är annorlunda än vid torr luft. Den av luftmassemätaren givna signalen tillföres lika- ledes till den elektroniska kopplingsanordningen, bearbetas i denna och avgives därefter till ventilanordningen.According to a further feature of the invention, it is furthermore advantageous to use an air mass meter, since the air mass in humid air is different than in dry air. The signal given by the air mass meter is likewise supplied to the electronic coupling device, processed in it and then delivered to the valve device.
Slutligen är det enligt en egenskap hos uppfinningen fördel- aktigt att använda en luftfuktmätare och mata det från denna erhållna värdet som insignal till den elektroniska kopp- lingsanordningen.Finally, according to a feature of the invention, it is advantageous to use a humidity meter and supply the value obtained from this as an input signal to the electronic coupling device.
Ytterligare fördelar hos uppfinningen framgår av nedan- stående beskrivning och underpatentkraven.Further advantages of the invention appear from the following description and the patent claims.
Ritning '| Ett flertal utföringsexempel av uppfinningen beskrives nedan närmare under hänvisning till åtföljande ritningar. Fig. 1 visar en lufttorkningsanordning med tidkoppling, fig. 2 visar en lufttorkningsanordning med luftmassemätning, fig. 3 visar en lufttorkningsanordning med elektriska tryckgivare, och fig. 4 visar en lufttorkningsanordning med luft- fuktmätning. i Beskrivning av utföringsexemplen En kompressor l är genom en ledning 2 förbunden med en tryckregulator 3. Tryckregulatorn 3 är kombinerad med en tryckpåverkad elektrisk strömställare 4. Efter tryckregula- torn 3 är en lufttorkningsanordning 5§anordnad, vilken upp- 10 15 20 25 30 35 451 543 visar en med torkningsmaterial fylld luftavfuktare 6, två magnetventiler 7 och 8, en backventil 9 och en strypning 10.Drawing '| A number of embodiments of the invention are described in more detail below with reference to the accompanying drawings. Fig. 1 shows an air drying device with time coupling, Fig. 2 shows an air drying device with air mass measurement, Fig. 3 shows an air drying device with electric pressure sensors, and Fig. 4 shows an air drying device with air humidity measurement. Description of the exemplary embodiments A compressor 1 is connected via a line 2 to a pressure regulator 3. The pressure regulator 3 is combined with a pressure-influenced electric switch 4. After the pressure regulator 3, an air drying device 5§ is arranged, which 451 543 shows an air dehumidifier 6 filled with drying material, two solenoid valves 7 and 8, a non-return valve 9 and a throttle 10.
De båda magnetventilerna 7 och 8 bildar en ventilanordning 7/8.The two solenoid valves 7 and 8 form a valve device 7/8.
Med lufttorkningsanordningen 5 är en elektronisk kopplings- anordning ll kombinerad, i vilken finnes en tidkrets 12.An electronic switching device 11 is combined with the air drying device 5, in which there is a time circuit 12.
Strömställaren 4 samt de båda magneterna hos ventilerna 7 och 8 är anslutna till den elektroniska kopplingsanordningen ll.The switch 4 and the two magnets of the valves 7 and 8 are connected to the electronic coupling device 11.
Efter lufttorkningsanordningen 5 ledes tryckluften till en förrådsbehållare 13, i vilken den upplagras.After the air drying device 5, the compressed air is led to a storage container 13, in which it is stored.
Funktion Den av kompressorn l matade tryckluften når via tryckregula- torn 3; luftavfuktaren 6 och backventilen 9 in i förrådsbehållaren 13 och fyller denna. den öppna nmgnetventilen 7, När maximalt tryck uppnåtts i förrådsbehållaren 13 kopplar tryckregulatorn 3 om och öppnar en integrerad tomgångsventil så att kompressorn l matar till atmosfär. Vid omkonpling av tryckregulatorn:3 påverkas strömställarpn 4 och denna ger en signal till den elektroniska kopplingsanordningen ll. Från denna strömmatas därvid magnetventilerna 7 och 8 så att Luft från behållaren 13 strömmar nu till- baka till luftavfuktaren 6 och genomströmmar denna bak- dessa kopplar om. länges. Den torra behållarluften regenererar torkmedlet i luftavfuktaren 6 och bortströmmar -genom magnetventilen 7 till atmosfär. * Efter en viss, av tidkretsen i den elektroniska kopplingsan- ordningen ll bestämd tid bryter denna åter strömtillförseln till magnetventilerna 7 och 8 så att dessa återvänder till sitt utgångsläge. När sedan förrådstrycket i behållaren 13 sjunkit till ett mínimivärde stänger tryckregulatorn 13 sin 10 15 20 25 30 35 4-51 543 tomgångsventil och kompressorn l matar åter in i förrâdsbe- hâllaren 13.Function The compressed air supplied by the compressor 1 reaches via the pressure regulator 3; the dehumidifier 6 and the non-return valve 9 into the storage container 13 and fill it. When the maximum pressure has been reached in the storage tank 13, the pressure regulator 3 switches and opens an integrated idle valve so that the compressor 1 feeds to the atmosphere. When recoupling the pressure regulator: 3, switch 4 is actuated and this gives a signal to the electronic switching device 11. From this, the solenoid valves 7 and 8 are then fed so that Air from the container 13 now flows back to the dehumidifier 6 and flows through this behind, which switches. long. The dry container air regenerates the desiccant in the dehumidifier 6 and flows away - through the solenoid valve 7 to atmosphere. * After a certain time, determined by the time circuit in the electronic switching device 11, it again switches off the power supply to the solenoid valves 7 and 8 so that they return to their initial position. When the storage pressure in the container 13 has dropped to a minimum value, the pressure regulator 13 closes its idle valve and the compressor 1 feeds back into the storage container 13.
Såsom framgår startas visserligen regenereringsfasen medelst tryckregulatorn 3 men dess längd är beroende av tidkretsen 12 i den elektroniska kopplingsanordningen ll. Pâ detta sätt kan tidslängden för regenereringen noggrant bestämmas.As can be seen, although the regeneration phase is started by means of the pressure regulator 3, its length depends on the time circuit 12 in the electronic switching device 11. In this way, the duration of the regeneration can be accurately determined.
Till detta kommer att det med hjälp av tidkretsen 12 även är möjligt att styra backströmningstiden i nmtsvarighet till förrâdsbehâllarens 13 fyllningstid. Med hjälp av tidkretsen kan amnfinügen lätt anpassas till olika inbyggnadsförhållan- den och uppgifter. ' Fig. 2 visar en lufttorkningsanordning, som är uppbyggd på liknande sätt som den i fig. l. Komponenter med motsvarighet i fig. 1 har därför erhållit samma hänvisningssiffror.In addition, with the aid of the time circuit 12 it is also possible to control the backflow time in the mean duration to the filling time of the storage container 13. With the help of the time cycle, the amn fi nügen can easily be adapted to different installation conditions and tasks. Fig. 2 shows an air drying device which is constructed in a manner similar to that of Fig. 1. Components with a corresponding one in Fig. 1 have therefore obtained the same reference numerals.
Hos denna konstruktion är tryckregulatorn 3 utelämnad och ersatt endast med en säkerhetsventil 14. Anordningen 'har tvâ magnetventiler 7' och 8, av vilka emellertid ventilen 7' är ansluten på annat sätt. Lufttorkningsanordningen bär hän- visningssiffran 15. Den är dessutom föksedd med en luftmas- semätare 16 och en tryckvakt 17, vi1ka'båda är anslutna till en elektronisk kopplingsanordning l8.^Denna kopplingsanord- ning erhåller som insignal en konstant K, vilken motsvarar ca 20 % av den torkade mängden upplagrad tryckluft.In this construction the pressure regulator 3 is omitted and replaced only with a safety valve 14. The device 'has two solenoid valves 7' and 8, of which, however, the valve 7 'is connected in another way. The air drying device carries the reference numeral 15. It is also equipped with an air mass meter 16 and a pressure switch 17, both of which are connected to an electronic switching device 18. This switching device receives as input signal a constant K, which corresponds to about 20%. of the dried amount of stored compressed air.
Den frammatade luftmassan, vilken är olika i beroende av luftens fukthalt, registreras *medels | luftmassemätaren 16 och det erhållna värdet utnyttjas Äïm insignal till den elektroniska kopplingsanordningen 18. När maximitryck upp- nåtts i förrådsbehâllaren 13 bryter tryckvakten 17 mat- ningen till behållaren 13. Därefter börjar regenereringen genom att båda magnetventilerna 8 och 7' strömmatas.The air mass fed, which differs depending on the moisture content of the air, is recorded * by | the air mass meter 16 and the value obtained are used as an input signal to the electronic coupling device 18. When the maximum pressure has been reached in the storage tank 13, the pressure switch 17 disconnects the supply to the tank 13. Thereafter, regeneration begins by supplying both solenoid valves 8 and 7 '.
Kompressorn l matar till atmosfär. I mr* v) 10 20 25 30 35 4513543 Regenereringsfasens slut bestämmes av den elektroniska kopp- lingsanordningen 18, som därvid återkopplar magnetventilen 8 till dess utgångsläge. När behållaren 13 förbinder magnetventilen 7' kompressorn 1 åter med förrådsbehållaren l3 för att denna åter skall kunna mínimitryck uppnåtts i förråds- fyllas.The compressor l feeds to atmosphere. In mr * v) 10 20 25 30 35 4513543 The end of the regeneration phase is determined by the electronic coupling device 18, which thereby feeds the solenoid valve 8 to its initial position. When the container 13 reconnects the solenoid valve 7 'the compressor 1 to the storage container 13 so that it can again be reached, the minimum pressure has been reached in the filling.
Fig. 3 visar en lufttorkningsanordning 20, vilken endast uppvisar en tryckvakt 17. Efter kompressorn 1 är en tryck- regulator 3 utan strömställare 4 inkopplad. De båda magnet- ventilerna 7' och 8 hos denna anordning motsvarar vad som visats i fig. 2.Fig. 3 shows an air drying device 20, which only has a pressure switch 17. After the compressor 1, a pressure regulator 3 without switch 4 is connected. The two solenoid valves 7 'and 8 of this device correspond to what is shown in Fig. 2.
Hos detta utförande utnyttjas ett visst differenstryck A p 'för regenerering.In this embodiment, a certain differential pressure A p 'is used for regeneration.
Fig. luftfuktmätning. 3 åter utelämnad och ersatt av en säkerhetsventil 14. 4 slutligen visar en lufttorkningsanordning 30 med Hos denna konstruktion är tryckregulatorn Fram- för och efter luftavfuktaren 6 finns fuktgivare 31 resp. 32.Fig. Humidity measurement. 3 again omitted and replaced by a safety valve 14. 4 finally shows an air drying device 30 with In this construction the pressure regulator is Before and after the dehumidifier 6 there are humidity sensors 31 resp. 32.
Som ventilanordning 7'/8 utnyttjas åter de båda magnetven- tilerna 7' och 8, varjämte tryckvakten 17 utnyttjas, liksom i konstruktionerna enligt fig. 2 och 31 En elektronisk kopp- lingsanordning bär hänvisningssiffran 33. De båda fuktgivar- na 31 och 32, 7' och 8 är anslutna till den elektroniska kopplingsanord- tryckvakten 17 och de båda magnetventilerna ningen 33. Denna lufttorkningsanordning 30 låter fuktgivarna 31 och 32 mäta luftfuktigheten hos tryokluften i anlägg- ningen och i torkmedlet i luftavfuktaren 6, varefter motsva- rande kopplingssignaler matas till den elektroniska kopp- lingsanordningen 33, i vilka de jämföies medelst en jämfö- relsekrets och därefter i princip styr ventilanordningen 7'/8 på det sätt, konstruktionen enligt fig. 2. som redan beskrivits i samband med Upprepning av denna beskriv- ning torde därför vara obehövlig.The two solenoid valves 7 'and 8 are again used as valve device 7' / 8, and the pressure switch 17 is also used, as in the constructions according to Figs. 2 and 31. An electronic coupling device carries the reference numeral 33. The two humidity sensors 31 and 32, 7 'and 8 are connected to the electronic switching device pressure monitor 17 and the two solenoid valves 33. This air drying device 30 allows the humidity sensors 31 and 32 to measure the humidity of the compressed air in the system and in the desiccant in the dehumidifier 6, after which corresponding switching signals are fed to the electronic coupling device 33, in which they are compared by means of a comparison circuit and then in principle control the valve device 7 '/ 8 in the manner the construction according to Fig. 2 which has already been described in connection with Repetition of this description should therefore be unnecessary.
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813139682 DE3139682A1 (en) | 1981-10-06 | 1981-10-06 | Air-drying device for compressed air system |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8205673D0 SE8205673D0 (en) | 1982-10-05 |
SE8205673L SE8205673L (en) | 1983-04-07 |
SE451543B true SE451543B (en) | 1987-10-19 |
Family
ID=6143505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8205673A SE451543B (en) | 1981-10-06 | 1982-10-05 | AIR DRYING FOR PRESSURE AIR EQUIPMENT |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3139682A1 (en) |
FR (1) | FR2514098B1 (en) |
SE (1) | SE451543B (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3308547A1 (en) * | 1983-03-10 | 1984-09-13 | Robert Bosch Gmbh, 7000 Stuttgart | COMPRESSED AIR SUPPLY DEVICE FOR COMPRESSED AIR SYSTEMS |
GB8422444D0 (en) * | 1984-09-05 | 1984-10-10 | Dowty Fuel Syst Ltd | Pure-air generator |
DE3445699A1 (en) * | 1984-12-14 | 1986-06-19 | Knorr-Bremse AG, 8000 München | AIR DRYING DEVICE FOR COMPRESSED AIR SYSTEMS |
DE3727603A1 (en) * | 1987-08-19 | 1989-03-02 | Bosch Gmbh Robert | COMPRESSED AIR TREATMENT DEVICE FOR COMPRESSED AIR SYSTEMS |
DD265809A1 (en) * | 1987-10-12 | 1989-03-15 | Dresden Komplette Chemieanlag | DEVICE FOR CONTROLLING THE GAS STROEME IN PRESSURE CHANGE ADSORPTION PLANTS |
DE4004482A1 (en) * | 1990-02-14 | 1991-08-22 | Bosch Gmbh Robert | Periodically regeneration compressed air dryer in pneumatic system - by valve controlled air passage venting compressed air directly to atmos. via dryer |
SE467687B (en) * | 1990-12-27 | 1992-08-31 | Haldex Ab | DRY DRAW VALVE AT AN ENTORN AIR DRYER GETTING UP OF A REGULATED TIME FOR THE FLOW OF REGENERATING AIR |
GB9118658D0 (en) † | 1991-08-30 | 1991-10-16 | Bendix Ltd | Gas dryers |
DE19620851C2 (en) * | 1996-05-23 | 1999-12-09 | Knorr Bremse Systeme | Air conditioning arrangement for compressed air, in particular for pneumatic brake systems of motor vehicles |
DE19706895A1 (en) * | 1997-02-21 | 1998-08-27 | Lorch J Ges & Co Kg | Compressed air treatment system |
GB9814254D0 (en) * | 1998-07-02 | 1998-09-02 | Wabco Automotive Uk | Air dryer for a vehicle |
GB0023350D0 (en) * | 2000-09-22 | 2000-11-08 | Wabco Automotive Uk Ltd | Vehicle air braking system |
DE102005033083B3 (en) | 2005-07-15 | 2006-12-28 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Air treatment method for utility vehicle pneumatic brake systems, comprises air drier which is regenerated by passing air from pressure tank through it, amount used being increased if condensate is detected in air downstream from drier |
DE102005057003B4 (en) * | 2005-11-30 | 2007-09-13 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Compressed air supply system and method for operating a compressed air supply system |
DE102006019865C5 (en) * | 2006-04-28 | 2012-05-03 | Haldex Brake Products Gmbh | Cartridge, compressed air treatment plant and method for operating a compressed air treatment plant |
DE102007062312A1 (en) | 2007-12-21 | 2009-06-25 | Continental Aktiengesellschaft | Level control system for spring loading vehicle body against vehicle axle, has valves opening and allowing transfer of air from dryer into container or chambers when pressure in dryer exceeds minimum pressure |
DE102008026103A1 (en) * | 2008-05-30 | 2009-12-03 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Air dryer with integrated regeneration control and method for operating an air dryer |
DE102009003396A1 (en) | 2009-01-28 | 2010-07-29 | Continental Aktiengesellschaft | Method for controlling the regeneration cycles for an air dryer in a closed vehicle level control system |
DE102010024893B4 (en) * | 2010-06-24 | 2021-11-04 | Zf Cv Systems Hannover Gmbh | Air treatment system for a vehicle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3082166A (en) * | 1960-07-08 | 1963-03-19 | Exxon Research Engineering Co | Process for the drying of volatile liquids |
US3464186A (en) * | 1967-02-10 | 1969-09-02 | Hankison Corp | Dryer for compressed fluid systems |
US3696588A (en) * | 1970-12-07 | 1972-10-10 | Ingersoll Rand Co | Gas drying apparatus and method |
US3775946A (en) * | 1972-10-13 | 1973-12-04 | Howe Baker Eng | Adsorption control |
US3902875A (en) * | 1973-12-19 | 1975-09-02 | Westinghouse Air Brake Co | Multiple filter apparatus |
FR2334404A1 (en) * | 1975-12-09 | 1977-07-08 | Gohin Poulenc Cie | Drying gases by passing through drying agent - with periodic regeneration automatically controlled, ensuring complete drying |
US4197095A (en) * | 1978-08-31 | 1980-04-08 | Pall Corporation | Heatless adsorbent fractionators with microprocessor cycle control and process |
-
1981
- 1981-10-06 DE DE19813139682 patent/DE3139682A1/en active Granted
-
1982
- 1982-10-05 SE SE8205673A patent/SE451543B/en not_active IP Right Cessation
- 1982-10-06 FR FR8216760A patent/FR2514098B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3139682C2 (en) | 1991-02-28 |
SE8205673D0 (en) | 1982-10-05 |
SE8205673L (en) | 1983-04-07 |
DE3139682A1 (en) | 1983-05-05 |
FR2514098B1 (en) | 1986-08-22 |
FR2514098A1 (en) | 1983-04-08 |
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