Filtration system utilizing a single valve to direct fluid streams between filter assemblies and corresponding methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-035/18
B01D-035/00
출원번호
US-0296249
(2002-12-09)
등록번호
US-7309430
(2007-12-18)
국제출원번호
PCT/US01/022533
(2002-12-09)
§371/§102 date
20030710
(20030710)
국제공개번호
WO02/006028
(2002-01-24)
발명자
/ 주소
Hills,William H.
출원인 / 주소
Hills, Inc.
대리인 / 주소
Edell, Shapiro & Finnan, LLC
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A filtration assembly for filtering polymer fluids at varying flow rates includes at least two filter housing assemblies releasably attached to a filter support or main block. Polymer fluid is delivered to the filter housing assemblies via an inlet passage in the main block, and filtered polymer flu
A filtration assembly for filtering polymer fluids at varying flow rates includes at least two filter housing assemblies releasably attached to a filter support or main block. Polymer fluid is delivered to the filter housing assemblies via an inlet passage in the main block, and filtered polymer fluid is transported from the filter housing assemblies to an outlet passage in the main block. One end of each filter housing assembly is attached to the main block and includes an inlet port for receiving polymer fluid from the inlet passage and an outlet port for delivering filtered polymer fluid to the outlet passage. A single valve disposed on the main block selectively alternates fluid flow between the main block and each filter housing assembly.
대표청구항▼
What is claimed is: 1. A continuous fluid filtration system comprising: a filter support including an inlet passage to receive fluid entering said system and an outlet passage to deliver filtered fluid out of said system; a first filter housing assembly and a second filter housing assembly connecte
What is claimed is: 1. A continuous fluid filtration system comprising: a filter support including an inlet passage to receive fluid entering said system and an outlet passage to deliver filtered fluid out of said system; a first filter housing assembly and a second filter housing assembly connected to said filter support, each filter housing assembly including a chamber disposed therein, filter media disposed within said chamber, an input port to deliver fluid into said chamber, an output port to deliver filtered fluid out of said chamber, and a housing head located at one end of each filter housing assembly, wherein said input and output ports of each filter housing assembly are disposed on said housing head of each filter housing assembly; and a single valve configured to selectively alternate fluid flow between said first and second filter housing assemblies by establishing fluid communication between said inlet passage and one of said input ports of said first and second filter housing assemblies and between said outlet passage and a corresponding one of said output ports of said first and second filter housing assemblies, wherein said valve includes an engaging surface that engages an outer planar surface of said filter support, said valve is configured to be slidably displaced in two opposite linear directions and along said outer planar surface to selectively alternate fluid flow between said first and second filter housing assemblies, and each slidable displacement of said valve results in movement of said valve spatially closer toward one of said first and second filter housing assemblies and further away from the other of said first and second filter housing assemblies. 2. The system of claim 1, wherein said valve is adjustable to an intermediate position permitting fluid flow to said first and second filter housing assemblies from said inlet passage while preventing fluid flow from one of said first and second filter housing assemblies to said outlet passage. 3. The system of claim 1, wherein said valve is adjustable to a plurality of valve positions that vary fluid flow within said system, and each valve position to which said valve is adjustable permits fluid flow into and out of at least one of said first and second filter housing assemblies. 4. The system of claim 1, wherein said housing head including said input and output ports for each of said first and second filter housing assemblies engages a second surface of said filter support, and said filter support includes a plurality of filter input channels and a plurality of filter output channels extending within said filter support and emerging from said filter support at said second surface, each input port of said first and second housing assemblies is in fluid communication with a corresponding filter input channel and each output port of said first and second filter housing assemblies is in fluid communication with a corresponding filter output channel. 5. The system of claim 4, wherein said filter input channels and said filter output channels emerge from said first surface of said filter support, said valve includes an inlet groove and an outlet groove disposed on said engaging surface, and said valve selectively alternates fluid flow between said first and second filter housing assemblies by aligning said inlet groove and said outlet groove on said second surface such that said inlet groove is in fluid communication with said inlet passage and one of said filter input channels and said outlet groove is in fluid communication with said outlet passage and one of said filter output channels. 6. The system of claim 1, wherein each filter housing assembly includes a bleed line to release air entrapped within said chamber of said filter housing assembly. 7. The system of claim 1, wherein said filter media within said chamber of each filter housing assembly comprises a plurality of candle filters. 8. The system of claim 7, wherein each candle filter of each filter housing assembly receives polymer fluid entering said chamber from said input port and each filter housing assembly further includes a passage in fluid communication with said plurality of candle filters to deliver filtered polymer fluid from said plurality of candle filters to said output port. 9. The system of claim 1, wherein each filter housing assembly includes a heating element to maintain each filter housing assembly at a desired temperature. 10. The system of claim 9, wherein each heating element comprises a heating jacket surrounding an exterior surface portion of a corresponding filter housing assembly. 11. The system of claim 10, wherein each heating jacket includes a temperature sensor to detect the temperature of said corresponding filter housing assembly, and said temperature sensor and said heating jacket are in communication with a controller that controls the temperature of said heating jacket based upon a temperature measured by said temperature sensor. 12. The system of claim 1, wherein said filter support and said valve each include a heating element to maintain said filter support and said valve at desired temperatures. 13. The system of claim 1, wherein each filter housing assembly further includes a housing removably secured to said housing head, said housing including said chamber disposed therein, and said housing head is configured to receive a plurality of different sized housings having different chamber volumes to accommodate varying fluid filtering capacities. 14. A continuous fluid filtration system comprising: a filter support including an inlet passage to receive fluid entering said system and an outlet passage to deliver filtered fluid out of said system; a first filter housing assembly and a second filter housing assembly connected to said filter support, each filter housing assembly including a chamber disposed therein, filter media disposed within said chamber, an input port to deliver fluid into said chamber, an output port to deliver filtered fluid out of said chamber, and a housing head located at one end of each filter housing assembly, wherein said input and output ports of each filter housing assembly are disposed on said housing head of each filter housing assembly; and a single valve configured to selectively alternate fluid flow between said first and second filter housing assemblies by establishing fluid communication between said inlet passage and one of said input ports of said first and second filter housing assemblies and between said outlet passage and a corresponding one of said output ports of said first and second filter housing assemblies, wherein said valve includes an engaging surface that engages an outer planar surface of said filter support, and said valve is configured to be slidably displaced in two opposite linear directions and along said outer planar surface to selectively alternate fluid flow between said first and second filter housing assemblies.
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이 특허에 인용된 특허 (5)
Hills William H. (Melbourne Village FL), Apparatus for continuous polymer filtration.
Hobrecht Knut,DEX ; Itter Friedhelm,DEX, Method and apparatus for continuously filtering a polymeric melt utilizing an intermediate filter of reduced surface a.
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