Control device for filters in at least two partial fluid streams
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0800212
(1997-02-12)
|
우선권정보 |
DE-4408600 (1994-03-15) |
발명자
/ 주소 |
- Schwanekamp Heinrich,DEX
- Wilken-Trenkamp Ludger,DEX
- Hangmann Manfred,DEX
- Leuders Wilfred,DEX
|
출원인 / 주소 |
- WilMan Polymer Filtration GmbH, DEX
|
대리인 / 주소 |
Meltzer, Lippe, Goldstein et al.
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
6 |
초록
▼
A control device for at least two partial fluid ducts comprises a common fluid supply duct and a common fluid removal duct. The fluid supply duct is connected with the fluid removal duct by at least two partial fluid ducts. A filtering device, a valve device each having a blocking element, and a sto
A control device for at least two partial fluid ducts comprises a common fluid supply duct and a common fluid removal duct. The fluid supply duct is connected with the fluid removal duct by at least two partial fluid ducts. A filtering device, a valve device each having a blocking element, and a stop valve are each located in a corresponding partial fluid duct. Each blocking element of the valve device operates in such a way that the blocking element can be moved between a first (open) position, in which the fluid flowing through the partial fluid duct in which it is located is filtered, and a second (closed) position, in which the fluid is filtered in the other partial fluid duct, whereas at the same time the filtering device provided in the partial fluid duct in which it is located is washed by the fluid flowing in the reverse direction. Furthermore,each blocking element can be brought from the first position into the second position and vice-versa by rotating the blocking element.
대표청구항
▼
[ We claim:] [1.] A control device for filtering at least two partial fluid streams, comprising:a common fluid supply duct for supplying said fluid streams;a common fluid removal duct for removing the filtered fluid streams;at least two partial fluid ducts, positioned between the common fluid supply
[ We claim:] [1.] A control device for filtering at least two partial fluid streams, comprising:a common fluid supply duct for supplying said fluid streams;a common fluid removal duct for removing the filtered fluid streams;at least two partial fluid ducts, positioned between the common fluid supply and removal ducts, each of said at least two partial fluid ducts including;a corresponding filtering device in each partial fluid duct for filtering a respective partial fluid stream in the corresponding partial fluid duct,a single corresponding valve device for each of said partial fluid ducts for controlling the flow of the respective partial fluid stream in each of said partial fluid ducts via a corresponding blocking element, wherein the number of valve devices is equal to the number of said partial fluid ducts, each said blocking element being located in the flow of the respective partial fluid stream of the corresponding partial fluid duct and having a first open position for directing said respective partial fluid stream to flow through the corresponding filtering device, a second blocking position for blocking said respective partial fluid stream from said corresponding filtering device and for redirecting said respective partial fluid stream to one of the at least one other partial fluid ducts for filtering in its corresponding filtering device, while the filtering device in said corresponding partial duct is washed of accumulated particles by a reversed flow of said partial fluid stream through said filtering device, and a third position for directing said respective partial fluid stream outside said control device, anda corresponding stop valve positioned in proximity to each said corresponding filtering device, having a first open position and a second blocking position, each said stop valve being in said first open position, when the corresponding blocking element is in its second blocking position, for releasing said particles washed from the corresponding filtering device from said device, and each said stop valve being in said second blocking position when said corresponding blocking element is in its first open position. [15.] The control device according to claim 1, wherein each said stop valve is positioned downstream from each said filter device, such that each said filter device is washed by said partial fluid stream when each said stop valve is in its first open position. [16.] The control device according to claim 15, wherein each said filter device is rotatable. The control device according to claim 15, wherein each said stop valve is allocated to the each said filter device in such a way, that it selectively blocks the corresponding partial fluid duct downstream from each said filter device. The control device according to claim 1, further comprising a plurality of mounting elements for securing said control device in a position downstream from one of a feed screw of an extruder for synthetic material and a pump for melted masses, and in a position upstream from an extruder die. The control device according to claim 1, wherein said control device comprises two partial fluid ducts each comprising a first duct section forming an angle .alpha. in the range of approximately 120.degree. to 160.degree. with said fluid supply duct, wherein said first duct section is followed in the fluid flow direction by a substantially parallel second duct section, and wherein said second duct section is followed in the fluid flow direction by a third duct section between said second duct section and said fluid removal duct, said third duct forming an angle .beta. in the range of approximately 120.degree. to 140.degree. with said fluid removal duct.
이 특허에 인용된 특허 (6)
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Kreyenborg Udo (Mnster-Kinderhaus DEX), Apparatus for filtering plasticized materials.
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Stude Rolf-Rdiger (Mnster DEX) Wilken-Trenkamp Ludger (Mnster DEX), Apparatus for filtering plasticized materials in extruders and like machines.
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Ponzielli Giuseppe (Via Panizzi ; 12 Milano ITX), Device for the separation of particulated solids from a pressurized fluid.
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Gneuss Detlef (Bad Oeynhausen DEX), Filter-changing method for a molten plastic filtration apparatus.
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Bacher Helmut (Bruck/Hausleiten 17 St. Florian A-4490 ATX) Schulz Helmuth (Badstrasse 20 St. Florian A-4490 ATX) Wendelin Georg (Waldbothenweg 84 Linz A 4033 ATX) Wendelin Gerhard (Am Hartmayrgut 5 L, Filtering apparatus for synthetic thermoplastics material.
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Steffen Peter (Kirchenstrasse 80 6632 Saarwellingen DEX), Selectable filter assembly.
이 특허를 인용한 특허 (8)
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Hehenberger Gerhard,ATX ; Teuber Andreas,ATX ; Remili Johannes,ATX, Backflush attachment for a filtering device.
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Choo,Kim Poh, Backflushing filter.
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Bacher, Helmut; Schulz, Helmuth; Wendelin, Georg, Backwashable filtering device.
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Previero Flavio,ITX, Filter device for flowable plastic material.
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Hartmann, Frank; Middler, Robert, Filtering device for highly viscous fluids.
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Wnuk, Ralf; Olschok, Markus; Sauer, Jürgen, Fluid system.
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Boothe, Duane A.; Martin, J. Wayne, Melt cooler and valving system for an underwater pelletizing process.
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Boothe, Duane A.; Martin, J. Wayne, Melt cooler and valving system for an underwater pelletizing process.
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