WO2023042910A1 - Filtre de traitement de substance liquide - Google Patents

Filtre de traitement de substance liquide Download PDF

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Publication number
WO2023042910A1
WO2023042910A1 PCT/JP2022/034757 JP2022034757W WO2023042910A1 WO 2023042910 A1 WO2023042910 A1 WO 2023042910A1 JP 2022034757 W JP2022034757 W JP 2022034757W WO 2023042910 A1 WO2023042910 A1 WO 2023042910A1
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WO
WIPO (PCT)
Prior art keywords
liquid
filter
filter body
water
sheet
Prior art date
Application number
PCT/JP2022/034757
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English (en)
Japanese (ja)
Inventor
俊彦 長島
毅 佐藤
Original Assignee
株式会社コーワ
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 株式会社コーワ filed Critical 株式会社コーワ
Publication of WO2023042910A1 publication Critical patent/WO2023042910A1/fr

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles

Definitions

  • the present invention relates to a liquid processing filter used in a suction device for sucking and processing liquid.
  • Patent Document 1 a liquid processing filter used for sucking and processing harmful liquids such as blood contaminated with pathogenic bacteria and liquids containing solids such as vomit with a suction device such as an electric vacuum cleaner.
  • Patent Document 1 a starch-based, cellulose-based, or synthetic polymer-based superabsorbent polymer, or a non-woven fabric such as polyester impregnated with a superabsorbent polymer, is put into a water-repellent paper garbage bag.
  • a starch-based, cellulose-based, or synthetic polymer-based superabsorbent polymer, or a non-woven fabric such as polyester impregnated with a superabsorbent polymer is put into a water-repellent paper garbage bag.
  • the present invention is intended to solve the above-mentioned conventional problems, and it is possible to suck the liquid material without lowering the suction power of the suction device, and to prevent the sucked liquid material from oozing out of the filter body. It is an object of the present invention to provide a liquid processing filter capable of
  • the invention of claim 1 provides a liquid processing filter used in a device for sucking liquid by suction force, which has an opening and is air permeable. It has a filter body, a sheet body containing a water-absorbent polymer placed inside the filter body, and a plate-like support provided with a liquid suction port attached to the opening of the filter body.
  • the bag-shaped filter body is divided into three storage spaces, and the central storage space communicates with the opening and stores the sucked liquid. It is characterized in that the sheet body is accommodated in each of the accommodating spaces, which are spaces and the walls of which are adjacent to the central accommodating space.
  • the bag-like filter body is divided into three storage spaces, the solid matter contained in the liquid matter is captured in the central storage space, and only water is reliably reacted with the water-absorbing polymer. It is possible to prevent the moisture of the sucked liquid matter from oozing out from the filter body.
  • the sheet body can move freely in the accommodation space of the filter body in accordance with the expansion of the water-absorbent polymer, the entire filter body expands to efficiently absorb water.
  • the sheet body has little effect on the air permeability of the bag-like filter body, it is possible to prevent a reduction in the suction power of the suction device.
  • the accommodation space for the three bag-shaped filter bodies in claim 1 means that there are at least three accommodation spaces.
  • the invention of claim 1 also includes a case in which there are a total of four or more storage spaces, which are composed of a central storage space and three or more storage spaces whose walls are adjacent to the central storage space.
  • the invention of claim 2 is characterized in that, in the invention of claim 1, the area of the sheet body when viewed in plan is in the range of 81% or more and 94% or less of the area of the filter body in plan view. .
  • the area of the sheet body when viewed in plan is in the range of 81% or more and 94% or less of the area of the filter body in plan view. .
  • the invention of claim 3 is characterized in that in the invention of claim 1 or 2, the filter body is formed into a bag shape by joining both side end portions of two opposing surfaces. As a result, it is possible to reduce the number of joints in the filter body, so that it is possible to prevent the water content of the liquid from oozing out of the filter body. In addition, since the space formed between the filter body and the sheet body can be made small, the moisture of the sucked liquid can be more reliably reacted with the water-absorbing polymer.
  • the invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the filter body has a tapered shape in which a bottom surface is not formed at the bottom before the liquid matter is sucked.
  • the filter body has a tapered shape in which a bottom surface is not formed at the bottom before the liquid matter is sucked.
  • the invention of claim 5 is characterized in that, in the invention of any one of claims 1 to 4, a non-breathable sheet layer is provided on the side surface of the filter body in the vicinity of the liquid suction port.
  • a non-breathable sheet layer is provided on the side surface of the filter body in the vicinity of the liquid suction port.
  • the invention of claim 6 is characterized in that, in the invention of any one of claims 1 to 5, the sheet body contains cotton, and the cotton contains a water-absorbent polymer powder.
  • the water in the liquid can be reacted with the water-absorbing polymer at various locations in the bag-like filter body, and oozing out of the filter body can be prevented.
  • the inventions of claims 1 and 2 can prevent the moisture of the sucked liquid from oozing out of the filter body, and can prevent the suction power of the suction device from decreasing.
  • the inventions of claims 3 and 4 can more reliably cause the water in the sucked liquid to react with the water-absorbing polymer.
  • the invention of claim 5 can prevent the water content of the liquid material from oozing out from the side surface of the filter body in the vicinity of the liquid material suction port where it is difficult to react with the water-absorbent polymer.
  • the water in the liquid can be reacted with the water-absorbing polymer at various locations in the bag-like filter body, and can be prevented from oozing out of the filter body.
  • FIG. 2 is a front view showing another embodiment of the liquid processing filter according to the present invention.
  • FIG. 1(a) is a perspective view of a liquid processing filter according to the present invention
  • FIG. 1(b) is a front view of the liquid processing filter according to the present invention
  • FIG. 1(c) is a right side view of the liquid processing filter according to the present invention
  • FIG. 1(d) is a cross-sectional view taken along line AA of FIG. 1(b).
  • a liquid processing filter 10 according to the present invention is used in a device for sucking a liquid by a suction force.
  • Sheet bodies 2A and 2B containing a water-absorbent polymer 2a placed inside the body 1, and a plate-like support 3 having a liquid suction port 3a attached to the opening 1a of the filter body 1. have.
  • the bag-like filter body 1 has side walls 5a, 5b, 6a, and 6b formed of nonwoven fabric, and at least three storage spaces 1A, 1B, and 1C are defined.
  • the sheet bodies 2A and 2B are accommodated in each of the storage spaces 1B and 1C on both sides of which the walls are adjacent to the center storage space 1A and which are spaces in which the sucked liquid is stored.
  • FIG. 1(d) it is also possible to form a structure in which side walls 7a and 7b are provided outside the side walls 6a and 6b to form storage spaces 1D and 1E. It is possible to further enhance the effect of preventing the moisture of the substance from oozing out of the filter body.
  • the side walls 5a and 5b are preferably made of non-woven fabric with air permeability and moisture permeability. Moreover, it is preferable to use a breathable film for the side walls 6a and 6b or the side walls 7a and 7b.
  • the filter body 1 is formed into a bag-like shape by joining at least two opposite side end portions 1b, 1c, and 1d. As a result, it is possible to reduce the number of joints of the filter body, so that it is possible to prevent the water content of the liquid from seeping out of the filter body. In addition, since the area of the sheet body is increased, it is possible to absorb more water from the liquid. In addition, since the areas of the accommodating spaces 1B and 1C formed between the filter body 1 and the sheet bodies 2A and 2B can be reduced, the moisture of the sucked liquid can be more reliably reacted with the water-absorbing polymer. can be done.
  • the central accommodation space for accommodating the liquid material is surrounded by two accommodation spaces containing the sheet body, so that the water content of the liquid material and the water-absorbing polymer of the sheet body can efficiently react.
  • the present invention also includes a configuration in which a central accommodation space is surrounded by a plurality of accommodation spaces.
  • the central storage space will be in the shape of a square prism, with four storage spaces on the sides and one storage space on the bottom. It can be selected as appropriate.
  • the support 3 has a substantially square plate shape when viewed from the front, and has a circular liquid suction port 3a formed in the center.
  • a U-shaped tube (not shown) constituting the suction device is inserted into the liquid suction port 3a.
  • two notches 3b are formed on the side portion of the support 3, and these notches 3b function as attachment portions for attachment to the suction device side.
  • FIG. 2(a) is a perspective view showing the manufacturing process of the liquid processing filter according to the present invention.
  • the sheet bodies 2A and 2B are formed by folding the sheet body body 2c in half at the center, and inside the sheet bodies 2A and 2B, cotton 2b containing the water-absorbing polymer powder 2a is enclosed. ing. As a result, the water content of the liquid can be reacted with the water-absorbing polymer powder 2a at various locations in the bag-like filter body 1, and oozing out of the filter body 1 can be prevented.
  • An example of the material used for the sheet body 2c is air-laid nonwoven fabric.
  • the structure of the sheet body is not limited to the embodiment of the present invention, and a structure in which the cotton 2b containing the powdery material 2a of the water-absorbent polymer is sandwiched between two sheet body bodies, or , a structure in which the aggregate of the water-absorbing polymer can be moved together, such as a structure in which the cotton 2b containing the powdery substance 2a of the water-absorbing polymer is formed inside the main body of the bag-shaped sheet body. Included in the present invention.
  • FIG. 2(b) is an enlarged cross-sectional view of a sheet body that constitutes the liquid processing filter according to the present invention.
  • the water-absorbent polymer powder 2a is held in the gaps between the fibers of the cotton 2b. can be done.
  • the water-absorbent polymer powder 2a since the water-absorbent polymer powder 2a has sufficient gaps around it, it can absorb water from the liquid and swell.
  • Fig. 3(a) is a front view of the liquid treatment filter according to the present invention before reacting with the water-absorbent polymer
  • Fig. 3(c) is a right side view of the same.
  • the vertical length of the sheet body 2A when viewed from above is compared with the vertical length B and the horizontal length D when the filter body 1 is viewed from above. It is designed so that A and lateral length C are each in the range of about 90% to 97%.
  • the area of the sheet body 2A in plan view can be in the range of 81% or more and 94% or less of the area of the filter body 1 in plan view.
  • the sucked liquid substance can be reliably reacted with the granular substance 2a of the water-absorbent polymer. It is possible to prevent the moisture of the substance from oozing out from the filter body 1. - ⁇ In addition, since the sheet body 2A has little effect on the air permeability of the bag-like filter body 1, it is possible to prevent a reduction in the suction power of the suction device.
  • the filter body 1 since the filter body 1 has a tapered shape in which a bottom surface is not formed at the bottom before liquid matter is sucked, a space is formed between the filter body 1 and the sheet body 2A (2B). can be reduced, and the water in the sucked liquid can be more reliably reacted with the water-absorbing polymer.
  • the liquid since the liquid flows into the bottom portion while being in contact with the inner wall surface of the bag-shaped filter body, the water content of the liquid can be efficiently absorbed by the entire filter body. Furthermore, since it is possible to prevent the liquid from strongly colliding with the bottom of the filter body, it is possible to prevent the filter body from being damaged and the water content of the liquid from oozing out of the filter body.
  • Fig. 3(b) is a front view of the liquid treatment filter according to the present invention after reacting with the water-absorbing polymer
  • Fig. 3(d) is a right side view of the same.
  • the moisture from the liquid material reacts with the water-absorbent polymer granules 2a
  • the water-absorbent polymer particles 2a expand and the water-absorbent polymer 5 that has reacted with the moisture protrudes from the sheet body 2A (2B) to form a bag.
  • the sheet body 2A (2B) as a whole moves in the direction of the arrow as the water-absorbing polymer 5 expands.
  • the sheet body 2A (2B) can move freely within the accommodation space 1B (1C) of the filter body 1 in accordance with the expansion of the water-absorbent polymer 5, so that the filter body 1 as a whole can be expanded. It can absorb water efficiently. In addition, since swelling of the water-absorbent polymer is less likely to be suppressed, the performance of the water-absorbent polymer can be exhibited sufficiently. Furthermore, it is possible to prevent the bulging of the filter body 1 from concentrating locally and blocking the central accommodation space 1A, thereby preventing the inflow of the liquid material.
  • the sheet body 2A (2B) is a filter It is possible to secure both a space in which the body 1 can freely move in the housing space 1B (1C) and an area for reliably reacting the moisture of the liquid substance with the water-absorbing polymer.
  • the number of sheet bodies is not limited to the embodiment of the present invention, and it is possible to arrange a plurality of sheet bodies in one accommodation space. In that case, other sheet bodies are moved so as to avoid the sheet body that has swollen due to the reaction with the water content of the liquid, so that the sheet body is placed in the proper position so as to fill the gaps in the filter body, and the filter body is more efficiently placed. can absorb moisture.
  • FIG. 4 is a front view showing another embodiment of the liquid processing filter according to the present invention.
  • the liquid treatment filter 10 of this embodiment has a non-breathable sheet layer 4 on the side surface of the filter body 1 in the vicinity of the liquid suction port 3a. This part is difficult to react with the water-absorbing polymer because the tip of the U-shaped tube, which is the structure of the suction device side, is inserted from the liquid suction port 3a, but the non-breathable sheet layer 4 Exudation from the sides of the filter body can be prevented. Moreover, since it is not necessary to arrange the sheet member 2A in the vicinity of the liquid suction port 3a, it is possible to prevent the liquid suction port 3a from being blocked by the expansion of the water-absorbing polymer. The rest of the configuration is the same as that of the liquid processing filter 10 described with reference to FIGS. 1 to 3, so description thereof will be omitted.
  • the liquid processing filter according to the present invention is used by being attached to a suction device for sucking and processing liquid.
  • Reference Signs List 1 filter body 1A, 1B, 1C, 1D, 1E accommodation space 1a opening 1b, 1c, 1d both side ends 2A, 2B sheet body 2a water-absorbent polymer powder 2b cotton 2c sheet body main body 3 support 3a liquid Suction port 3b Notch 4 Non-air permeable sheet layer 5 Water absorbing polymer reacted with moisture 5a, 5b, 6a, 6b, 7a, 7b Wall surface 10 Liquid treatment filter

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Materials (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un filtre de traitement de substance liquide qui peut aspirer une substance liquide sans réduire la force d'aspiration d'un dispositif d'aspiration et qui peut empêcher la substance liquide aspirée de suinter hors d'un corps de filtre. La solution selon l'invention porte sur un filtre de traitement de substance liquide 10 qui comprend un corps de filtre 1 en forme de sac perméable au gaz comportant une ouverture, un corps de feuille 2A (2B) qui contient un polymère absorbant l'eau 2a placé à l'intérieur du corps de filtre 1, et un corps de support en forme de plaque 3 comportant un orifice d'aspiration de substance liquide 3a monté sur l'ouverture du corps de filtre 1, le corps de filtre 1 étant compartimenté en trois espaces de logement 1A, 1B, 1C, l'espace de logement central 1A communiquant avec l'ouverture et recevant une substance liquide aspirée, et le corps de feuille 2A (2B) étant logé dans chacun des espaces de logement 1B (1C) dans les deux parties latérales avec des surfaces de paroi adjacentes à l'espace de logement central 1A.
PCT/JP2022/034757 2021-09-17 2022-09-16 Filtre de traitement de substance liquide WO2023042910A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-152310 2021-09-17
JP2021152310A JP2023044331A (ja) 2021-09-17 2021-09-17 液状物処理フィルター

Publications (1)

Publication Number Publication Date
WO2023042910A1 true WO2023042910A1 (fr) 2023-03-23

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PCT/JP2022/034757 WO2023042910A1 (fr) 2021-09-17 2022-09-16 Filtre de traitement de substance liquide

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WO (1) WO2023042910A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01317421A (ja) * 1988-06-20 1989-12-22 Sanyo Electric Co Ltd 電気掃除機
JPH03141918A (ja) * 1989-10-30 1991-06-17 Matsushita Electric Ind Co Ltd 電気掃除機のフィルター
JPH05261042A (ja) * 1992-03-17 1993-10-12 Matsushita Electric Ind Co Ltd 電気掃除機用のフィルター
JPH11503651A (ja) * 1995-04-20 1999-03-30 ミネソタ マイニング アンド マニュファクチャリング カンパニー 耐衝撃性高効率真空掃除機用フィルタバッグ
US20070084166A1 (en) * 2005-10-18 2007-04-19 Wolf Gmbh Vacuum cleaner bag

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01317421A (ja) * 1988-06-20 1989-12-22 Sanyo Electric Co Ltd 電気掃除機
JPH03141918A (ja) * 1989-10-30 1991-06-17 Matsushita Electric Ind Co Ltd 電気掃除機のフィルター
JPH05261042A (ja) * 1992-03-17 1993-10-12 Matsushita Electric Ind Co Ltd 電気掃除機用のフィルター
JPH11503651A (ja) * 1995-04-20 1999-03-30 ミネソタ マイニング アンド マニュファクチャリング カンパニー 耐衝撃性高効率真空掃除機用フィルタバッグ
US20070084166A1 (en) * 2005-10-18 2007-04-19 Wolf Gmbh Vacuum cleaner bag

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