DE506656T1 - VENTILATION ROLLER WITH TEMPERATURE COMPENSATION. - Google Patents
VENTILATION ROLLER WITH TEMPERATURE COMPENSATION.Info
- Publication number
- DE506656T1 DE506656T1 DE1990905974 DE90905974T DE506656T1 DE 506656 T1 DE506656 T1 DE 506656T1 DE 1990905974 DE1990905974 DE 1990905974 DE 90905974 T DE90905974 T DE 90905974T DE 506656 T1 DE506656 T1 DE 506656T1
- Authority
- DE
- Germany
- Prior art keywords
- vacuum
- pressure
- roller
- chambers
- air
- 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.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims 3
- 239000012530 fluid Substances 0.000 claims 8
- 238000007789 sealing Methods 0.000 claims 8
- 238000011144 upstream manufacturing Methods 0.000 claims 7
- 238000001035 drying Methods 0.000 claims 2
- 239000004744 fabric Substances 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 2
Landscapes
- Drying Of Solid Materials (AREA)
Claims (16)
eine Druckleitungseinrichtung (32) in wenigstens einem der Drehzapfen (16', 30) zum Herstellen einer Fluidverbindung zwischen einer Quelle von Luft überatmosphärischen Druckes (34) und einer Druckkammer (18);
einen Walzenmantel (26), der Perforationen - (24) in seiner zylindrischen Oberfläche hat, wobei sich die Perforationen (24) längs einer effektiven Seitenlänge seiner Oberfläche erstrecken, um Ventilationsluft zu gestatten hindurchzugehen;a vacuum conduit means (36) within at least one of the pivot pins (16', 30) for establishing fluid communication between a source (38) of subatmospheric pressure air and a vacuum chamber (20);
a pressure line device (32) in at least one of the pivot pins (16', 30) for establishing a fluid connection between a source of air at superatmospheric pressure (34) and a pressure chamber (18);
a roll shell (26) having perforations (24) in its cylindrical surface, the perforations (24) extending along an effective side length of its surface to allow ventilation air to pass therethrough;
eine zweite Verbindungseinrichtung (49), die wenigstens zwei der Vielzahl von Vakuumkammern (20) in Fluidverbindung miteinander bringt;
wobei die Wandeinrichtung (19) und die erste und zweite Verbindungseinrichtung (44, 49) so angeordnet sind, daß die Vakuum- und Druckkammern (18, 20) in Umfangsrichtung um die Mittelwelle (16) abwechseln;a first connecting device (44) which brings at least two of the plurality of pressure chambers (18) into fluid communication with one another;
a second connecting device (49) which brings at least two of the plurality of vacuum chambers (20) into fluid communication with one another;
wherein the wall means (19) and the first and second connecting means (44, 49) are arranged so that the vacuum and pressure chambers (18, 20) alternate circumferentially around the central shaft (16);
die erste Verbindungseinrichtung eine Kammer (44) aufweist, welche benachbarte Enden der ersten und zweiten Druckkammer (18) verbindet.2. A roller for ventilating air in a bag according to claim 1, wherein:
the first connecting device has a chamber (44) which connects adjacent ends of the first and second pressure chambers (18).
die zweite Verbindungseinrichtung eine Öffnung (49) aufweist, welche benachbarte Enden der ersten und zweiten Vakuumkammer (20) verbindet.3. Roller for ventilating air in a bag according to claim I 1 , wherein:
the second connecting device has an opening (49) which connects adjacent ends of the first and second vacuum chambers (20).
die erste Verbindungseinrichtung eine Kammer (44) aufweist, welche das stromabwärtige Ende einer ersten Druckkammer (18, 18a, 18b, 18c) mit dem stromaufwärtigen Ende einer zweiten Druckkammer (18', 18a', 18b', 18c') ve rb inde t; und4. A roller for ventilating air in a bag according to claim 1, wherein:
the first connecting means comprises a chamber (44) which connects the downstream end of a first pressure chamber (18, 18a, 18b, 18c) to the upstream end of a second pressure chamber (18', 18a', 18b', 18c'); and
die erste und zweite Verbindungseinrichtung jeweils eine Öffnung (44d, 49d) aufweisen, welche zwei Druck- bzw. Vakuumkammern (18d, 18d', 2Od, 20d') zwischen ihren Enden verbindet.5. A roller for ventilating air in a bag according to claim 1, wherein:
the first and second connecting means each have an opening (44d, 49d) which connects two pressure or vacuum chambers (18d, 18d', 20d, 20d') between their ends.
die Verteileinrichtung eine Vielzahl von Öffnungen (23, 23a, 23b, 23c, 23d, 25, 25a, 25b, 25c, 25d) sowohl in den zweiten Vakuum- als auch in den zweiten Druckkammern (20', 20a', 20b', 20c', 20d', 18', 18a', 18b', 18c', 18d') aufweist.6. A roller for ventilating air in a bag according to claim 4, wherein:
the distribution device has a plurality of openings (23, 23a, 23b, 23c, 23d, 25, 25a, 25b, 25c, 25d) in both the second vacuum and the second pressure chambers (20', 20a', 20b', 20c', 20d', 18', 18a', 18b', 18c', 18d').
die Dichteinrichtung ringförmige Dichtungen (40, 42) zwischen der Mittelwelle (16) und dem Walzenmantel (26) nahe jedem Ende der effektiven Seitenlänge sowie Längsdichteinrichtungen (22, 22', 22") aufweist, die sich zwi-7. A roller for ventilating air in a bag according to claim 1, wherein:
the sealing device comprises annular seals (40, 42) between the central shaft (16) and the roll shell (26) near each end of the effective side length and longitudinal sealing devices (22, 22', 22") which are located between
die Druck- und Vakuumleitungseinrichtung (32, 36) in demselben Ende der Walze sind;8. A roller for ventilating air in a bag according to claim 1, wherein:
the pressure and vacuum line means (32, 36) are in the same end of the roller;
die Kammern (18', 20', 18a', 20a', 18b', 20b', 18c', 20c', 18d', 20d'), die Verteileinrichtungen haben, einander benachbart sind.9. A roller for ventilating air in a bag according to claim 8, wherein:
the chambers (18', 20', 18a', 20a', 18b', 20b', 18c', 20c', 18d', 20d') having distribution devices are adjacent to one another.
die Kammern, die Verteileinrichtungen haben, die stromaufwartigsten (20' , 20b') der verbundenen Vakuumkammern und die stromabwärtigsten (18', 18b') der verbundenen Druckkammern sind.10. A roller for ventilating air in a bag according to claim 9, wherein:
the chambers having distribution devices are the most upstream (20', 20b') of the connected vacuum chambers and the most downstream (18', 18b') of the connected pressure chambers.
die Mittelwelle (16) zwei Vakuumkammern (20, 20', 20a, 20a', 20b, 20b', 20c, 20c', 20d, 20d') und zwei Druckkammern (18, 18', 18a, 18a', 18b, 18b', 18c, 18c', 18d, 18d') aufweist, welche abwechselnd in Umfangsrichtung um die Mittelwelle angeordnet sind, wobei die stromaufwärtigste Vakuumkammer eine Verteileinrichtung hat, die der stromabwärtigsten Druckkammer benachbart ist, welche eine Verteileinrichtung hat.11. A roller for ventilating air in a bag according to claim 8, wherein:
the central shaft (16) has two vacuum chambers (20, 20', 20a, 20a', 20b, 20b', 20c, 20c', 20d, 20d') and two pressure chambers (18, 18', 18a, 18a', 18b, 18b', 18c, 18c', 18d, 18d') which are arranged alternately in the circumferential direction around the central shaft, the most upstream vacuum chamber having a distribution device which is adjacent to the most downstream pressure chamber which has a distribution device.
die Vakuum- und Druckleitungseinrichtung (32, 36) in demselben Drehzapfen (16') und jeweils mit einer entsprechenden der Vakuum- und Druckkammern verbunden sind.12. A roller for ventilating air in a bag according to claim 1, wherein:
the vacuum and pressure line means (32, 36) are in the same pivot (16') and are each connected to a corresponding one of the vacuum and pressure chambers.
die Druck- und Vakuumleitungseinrichtung (32, 36) in entgegengesetzten Enden der Walze sind.13. A roller for ventilating air in a bag according to claim 1, wherein:
the pressure and vacuum line devices (32, 36) are in opposite ends of the roller.
die Druck- und Vakuumleitungseinrichtung (32, 36) jeweils in beiden Enden der Walze sind.14. A roller for ventilating air in a bag according to claim 1, wherein:
the pressure and vacuum line devices (32, 36) are each in both ends of the roller.
eine zweite Wandeinrichtung (21) in der Mittelwelle (16), die mit der ersten Wandeinrichtung (19) und dem Inneren der Mittelwelle einen Teil des Innenraums in eine Vielzahl von sich in Längsrichtung erstreckenden Kammern (18, 20) verwandelt, wobei es wenigstens zwei Vakuumkammern (20, 20', 20a, 20a', 20b, 20b', 20c, 20c', 20d, 20d') und wenigstens zwei Druckkammern (18, 18', 18a, 18a', 18b, 18b', 18c, 18c', 18d, 18d') gibt;
einen Walzenmantel (26), der Perforationen (24) in seiner zylindrischen Oberfläche hat, wobei sich die Perforationen längs einer effektiven Seitenlänge seiner Oberfläche erstrecken, um Ventilationsluft zu gestatten hindurchzugehen ;a first wall means (19) extending diametrically across the at least one hollow pivot (16') and the interior of the center shaft, the first wall means or an extension thereof dividing the at least one hollow pivot into vacuum and pressure lines (36, 32) for connecting sources (38, 34) of air of subatmospheric pressure and superatmospheric pressure, respectively, to the interior of the center shaft;
a second wall means (21) in the central shaft (16) which, with the first wall means (19) and the interior of the central shaft, transforms a portion of the interior space into a plurality of longitudinally extending chambers (18, 20), there being at least two vacuum chambers (20, 20', 20a, 20a', 20b, 20b', 20c, 20c', 20d, 20d') and at least two pressure chambers (18, 18', 18a, 18a', 18b, 18b', 18c, 18c', 18d, 18d');
a roll shell (26) having perforations (24) in its cylindrical surface, the perforations extending along an effective side length of its surface to allow ventilation air to pass therethrough;
eine zweite Verbindungseinrichtung (49, 49a, 49b, 49c, 49d), welche wenigstens zwei der Vielzahl von Vakuumkammern (20, 20', 20a, 20a', 20b, 20b', 20c, 20c', 20d, 2Od') in Fluidverbindung miteinander bringt;
wobei die erste und die zweite Wandeinrichtung (19, 21) innerhalb der Mit-a first connecting device (44, 44a, 44b, 44c, 44d) which brings at least two of the plurality of pressure chambers (18, 18', 18a, 18a', 18b, 18b', 18c, 18c', 18d, 18d') into fluid communication with one another;
a second connecting device (49, 49a, 49b, 49c, 49d) which brings at least two of the plurality of vacuum chambers (20, 20', 20a, 20a', 20b, 20b', 20c, 20c', 20d, 20d') into fluid communication with one another;
wherein the first and second wall means (19, 21) are arranged within the
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/453,516 US4949475A (en) | 1989-12-20 | 1989-12-20 | Temperature compensated ventilating roll |
PCT/US1990/001832 WO1991009173A1 (en) | 1989-12-20 | 1990-04-09 | Temperature compensated ventilating roll |
Publications (1)
Publication Number | Publication Date |
---|---|
DE506656T1 true DE506656T1 (en) | 1993-02-25 |
Family
ID=26781352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1990905974 Pending DE506656T1 (en) | 1989-12-20 | 1990-04-09 | VENTILATION ROLLER WITH TEMPERATURE COMPENSATION. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE506656T1 (en) |
-
1990
- 1990-04-09 DE DE1990905974 patent/DE506656T1/en active Pending
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