GB2331468A - Straining core for filtering raw water - Google Patents

Straining core for filtering raw water Download PDF

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Publication number
GB2331468A
GB2331468A GB9724503A GB9724503A GB2331468A GB 2331468 A GB2331468 A GB 2331468A GB 9724503 A GB9724503 A GB 9724503A GB 9724503 A GB9724503 A GB 9724503A GB 2331468 A GB2331468 A GB 2331468A
Authority
GB
United Kingdom
Prior art keywords
core
straining
straining core
tube
raw water
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.)
Granted
Application number
GB9724503A
Other versions
GB9724503D0 (en
GB2331468B (en
Inventor
Hung Fu Cheng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9724503A priority Critical patent/GB2331468B/en
Publication of GB9724503D0 publication Critical patent/GB9724503D0/en
Publication of GB2331468A publication Critical patent/GB2331468A/en
Application granted granted Critical
Publication of GB2331468B publication Critical patent/GB2331468B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B01D29/216—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets with wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A straining core for filtering raw water to produce drinking water comprises a tube 11 having a plurality of holes 111 which is enclosed by a plurality of layers of filter elements 12 whose upper and lower ends are sealed by enclosures 13 and 13'. The raw water passes through the filter members and then into the inner space of the tube, and the fresh water is directed through the upper end of the straining core. The filter elements are preferably made from dust free paper and are spaced together closely so that particle debris in the water can be removed.

Description

2331468 Improved Straining Core
Field of the Invention
The present invention relates to an improved straining core of the type that includes a tube having a plurality of orifices thereof. The outer wall of the tube is enclosed with a plurality of layers of filtering membranes that is preferably selected from dust-free paper. The upper and lower end of the tube is sealed with an enclosure, respectively. The filtering membrane features an excellent filtering performance. The throughput is increased and the quality is upgraded.
The cost of the filtering membrane is quite low and the overall cost is lowered.
Description of Prior Art
The straining core is used to filter the debris or particles within the raw water. Normally, a straining core with excellent performance may filter out most of the debris as well as particles within the raw water and pure water can be attained. In generally, the straining core is disposed upstream of the drinking water machine. As a result, the straining core is a dispensable accessory of the drinking water machine.
As shown in Figure 1, the conventional straining core A is generally wound from the cotton strands AI. In order to provide a filtering effect, a groove A2 is formed at the central portion. In use, the raw water flows from outer peripheral of the core A into inside of the core A through the A2. Since the inter-spac e between the filtering strands is quite small and the debris within the raw water can be readily filtered. Even this conventional straining core A has a preferable filtering performance, it can be still concluded with the following defects.
1.The filtering layer is composed by a plurality of cotton strands that shall be wound compact to get a better filtering performance. However, the gap between two adjacent cotton strands is quite large. Besides, there is no filtering element within the groove. As a result, only the debris with larger grain size can be filtered and the particles with smaller grain size can not be filtered. In order to get a better filtering effect, a plurality of straining cores shall be installed in series. This will no doubt to increase the overall cost.
2. The type of straining core costs lot in material and winding. The overall cost is comparatively high.
3. The conventional straining core shall be replaced once a mouth. The to replaced core is disposed. However, the cotton strands can not be decomposed naturally. Pollution will be raised.
In order to solve the problem encountered in the above-described straining core, another straining core is introduced.
As shown in Figure 2, this conventional straining core B is configured with ceramic or asbestos material. This straining core B is provided with a passage B 1. The straining core B is provided with orifices during the manufacturing process and the debris within the raw water can be readily filtered by the orifices. This ceramic straining core B has a better filtering performance as compared to the first one and part of the problem of the first one has been solved. However, it can be still concluded with the following defects, 1. The inner diameter of the orifices is quite small and the throughput is therefore lowered as the inflow is small.
2. The orifices have a linear configuration and no filtering element is disposed therebetween. Even most of the debris within the raw water can be filtered, part of the debris within the raw water may still not be effectively filtered. In light of this, a plurality of ceramic straining core shall be installed in series to get a better filtering performance. To do so, the overall cost will be increased as well.
3. The manufacturing cost of this ceramic straining core is quite high in both preparing the material and the manufacturing process itself.
Summary of the Invention
It is the objective of this invention to provide an improved straining core with which the problems encountered by the conventional straining cores can be completely solved.
It is still the objective of this invention to provide an improved straining core wherein the filtering membrane is selected from the dust-free paper. The dust-free paper has an excellent filtering performance and there is not gap between two adjacent layers of paper after it was wound. The debris and particles can be completely filtered without increasing the number of the filtering core.
It is still the objective of this invention to provide an improved straining core in which a tube having a plurality of orifices is enclosed by a plurality of layers of filtering membranes. The throughput of the fresh water can be increased as the raw water can be flown in the tube from the orifices. The fresh water flows out from the tube collectively.
According to another aspect of the present invention, the filtering membrane can be naturally decomposed as it is made from dust-free paper. No pollution to the environment will be caused.
It is still the objective of this invention to provide an improved straining core wherein the overall cost is considerably reduced.
Brief Description of Drawings
Figure 1 is a perspective view of a conventional straining core; 1 1 Figure 2 is still a perspective view of another perspective view of a conventional straining core; Figure 3 is an exploded perspective view of the straining core made according to the present invention; Figure 4 is a perspective view of the straining core made according to the present invention; and Figure 5 is a cross sectional view of the straining core made according to the present invention.
Detailed Description of Preferred Embodiment
Referring to Figures 3 to 5, the exploded perspective, the perspective, and cross sectional views of the straining core. It can be readily seen that the straining core 1 generally comprises a tube 11 that is enclosed with a plurality of layers of filtering membrane 12. It is preferable the dust-free paper. The outer surface. of the tube 11 is provided with a plurality of orifices 111. The upper and lower end of the tube 11 in which the filtering membrane 12 is enclosed is enclosed with an enclosure 13, 1Y.
In use, the raw water to be filtered is directed from the outer peripheral of the tube 11 to the inner space of the tube 11. The raw water can be readily filtered while it passes through the filtering membrane 12. Finally, the fresh water is directed from the upper end of the straining core 1.
Since the tube 11 is enclosed by a plurality of filtering membranes 12 and the gap between two adjacent filtering membrane 12 is quite small. The debris or particles within the raw water can be completely filtered by the filtering membrane 12 and only the pure water can be allowed to enter the tube 11.
On the other hand, the filtering membrane 12 can be selected from paper sheet, when the straining core 1 is replaced, the used filtering membranes 12 of the tube 11 can be naturally decomposed without raising any environment pollution. As the filtering membrane is made from paper sheet, the overall manufacturing cost can be completely reduced. Besides, the winding of the filtering membrane 12 can be readily done with a simple machine. No special tooling or machine is required.

Claims (3)

Claims:
1. An improved straining core, comprising a tube having a plurality of orifices thereof, a plurality of layers of filtering membranes being enclosed onto said tube, the upper and lower end of said tube being sealed by an enclosure, respectively.
2. An improved straining core as recited in claim 1, wherein said filtering membrane is selected from dust-free paper.
3. An improved straining core substantially as described herein with reference to the drawings.
1 1 I 1
GB9724503A 1997-11-19 1997-11-19 Improved straining core Expired - Fee Related GB2331468B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9724503A GB2331468B (en) 1997-11-19 1997-11-19 Improved straining core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9724503A GB2331468B (en) 1997-11-19 1997-11-19 Improved straining core

Publications (3)

Publication Number Publication Date
GB9724503D0 GB9724503D0 (en) 1998-01-21
GB2331468A true GB2331468A (en) 1999-05-26
GB2331468B GB2331468B (en) 2001-12-19

Family

ID=10822346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9724503A Expired - Fee Related GB2331468B (en) 1997-11-19 1997-11-19 Improved straining core

Country Status (1)

Country Link
GB (1) GB2331468B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156601A (en) * 1978-03-24 1979-05-29 Pieciak Peter P Filter cartridge and method of manufacturing the filter cartridge
US4242206A (en) * 1978-10-26 1980-12-30 Velcon Filters, Inc. Filter dehydrator
US4271025A (en) * 1979-02-09 1981-06-02 Filterwerk Mann & Hummel Gmbh Layered filter cartridge with internal bypass channels
GB2067425A (en) * 1980-01-11 1981-07-30 Lucas Industries Ltd Filter elements
US4938869A (en) * 1988-10-19 1990-07-03 Bay-San Co., Inc. Spiral wound filter element
GB2230205A (en) * 1989-04-11 1990-10-17 Seitz Filter Werke Filter element

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156601A (en) * 1978-03-24 1979-05-29 Pieciak Peter P Filter cartridge and method of manufacturing the filter cartridge
US4242206A (en) * 1978-10-26 1980-12-30 Velcon Filters, Inc. Filter dehydrator
US4271025A (en) * 1979-02-09 1981-06-02 Filterwerk Mann & Hummel Gmbh Layered filter cartridge with internal bypass channels
GB2067425A (en) * 1980-01-11 1981-07-30 Lucas Industries Ltd Filter elements
US4938869A (en) * 1988-10-19 1990-07-03 Bay-San Co., Inc. Spiral wound filter element
GB2230205A (en) * 1989-04-11 1990-10-17 Seitz Filter Werke Filter element

Also Published As

Publication number Publication date
GB9724503D0 (en) 1998-01-21
GB2331468B (en) 2001-12-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20091119