JP2006272112A - Water cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water cleaner which effectively prevents deterioration of water break at taking out a cleaning liquid and reduction of cleaning amount caused by air accumulated in the inside of a filter means after usage for a fixed period. <P>SOLUTION: The water cleaner comprises the filter means 1 having at least two end parts Y1, Y2, cleaning raw liquid L to be cleaned by making it to penetrate into its inside from one end part Y1, and taking out the liquid as a cleaned liquid J, and a housing means 2 for housing the filter means 1 in its inside. A lid body member 3 for covering the other end part Y2 of the filter means 1 to prevent the free outflow of the cleaned liquid J from the other end part Y2 to the housing means 2 side is arranged over the other end part Y2, and a gas penetration means 4 made of a material having nano-size pores is arranged in the lid body member 3. A gas A accumulated in a space R formed by the lid body member 3 and the other end part Y2 of the filter means 1 is automatically discharged outside through the gas penetration means 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a water purifier. More specifically, due to the air accumulated in the filter means with the use of a certain period of time, it was effectively prevented that the drainage of water deteriorated or the amount of purification decreased when taking out the purification liquid, The present invention relates to a water purifier suitably used as a water purifier for process equipment in fields such as the chemical industry and the food industry, and as a household water purifier for tap water.

  In recent years, ceramic membranes and activated carbon have been used as filter means for purification of bacteria, filtration, etc. by permeating the stock solution in process equipment and household water purifiers in fields such as the chemical industry and the food industry. Etc. are used (see Patent Document 1).

  As shown in FIGS. 4 and 5, such a water purifier 100 purifies the stock solution L to be purified by allowing the inside of the stock solution L to permeate through the inside of the end portion X1, and extracts the purified solution J as a purified solution J. Storage means 120 for storing the filter means 110 therein is provided. The filter means 110 is made of a cylindrical porous ceramic, and a plurality of cells 111 serving as fluid flow paths are disposed in parallel between one end X1 and the other end X2, Among the cells 111, the cells 111 are sealed so that the opening shapes at the end portions X <b> 1 and X <b> 2 are arranged in a straight line between the side surface portions. In FIG. 5, the opening of the sealed cell 111 is indicated by a black circle, and the opening without being sealed is indicated by a white circle. By configuring in this way, the undiluted solution L to be purified is purified by passing through the inside from one end portion X1, and as the purified solution J from the side surface portion S (partially the other end portion X2) side. It can be taken out.

JP 2004-188236 A

  However, as shown in FIG. 4, in the conventional water purifier, the gas (air) present as bubbles in the stock solution L to be purified or the gas (air) present inside the water purifier with use for a certain period of time. ) Is accumulated on the upper part of the porous ceramic cell 111 constituting the filter means 110 (the accumulated gas (air) is indicated by a symbol A in FIG. 4), and the collected gas (air) A is buffered from the water purifier by the buffering action. When taking out the cleaning solution, there is a problem that the amount of the cleaning solution decreases as the cleaning solution gets worse and the filter effective area of the filter means decreases. In other words, the volume of the accumulated gas (air) A, which was compressed and contracted due to the liquid pressure from the stock solution when the purification solution was taken out, was released when the removal of the purification solution was stopped. The pressure is about to be pushed out to the purification liquid due to the volume expansion of the accumulated gas (air) A, and the purification liquid is removed when the purification liquid is taken out from the water purifier. There has been a problem that the amount of purification decreases as the drainage of water worsens or the filter effective area of the filter means decreases.

  The present invention has been made in view of the above-mentioned problems, and due to the air accumulated in the filter means with use for a certain period of time, when the purification liquid is taken out, water drainage is deteriorated or the amount of purification is reduced. It is an object of the present invention to provide a water purifier that can be effectively used, particularly for process equipment in the fields of chemical industry, food industry, and the like, and as a domestic water purifier for tap water.

  This invention was made | formed in order to achieve the said objective, According to this invention, the following water purifiers are provided.

[1] A filter means that has at least two ends, purifies the stock solution to be purified by permeating through the inside from one end, and takes out it as a purified liquid, and stores the filter means in the interior A water purifier comprising a storage means, covering the other end portion above the other end portion of the filter means, and free passage of the cleaning liquid from the other end portion to the storage means side. A lid member that prevents excessive outflow is configured so that the stock solution taken in from one end of the filter means can be taken out from the side surface rather than from the other end. And the lid member is provided with gas permeable means made of a material having nano-sized pores, and is integrated in a space formed by the lid member and the other end of the filter means. The gas Water purifier, wherein capable of automatically discharged to the outside via the gas transmission means.

[2] The filter means is made of cylindrical porous ceramics, and has a structure in which a plurality of cells serving as fluid flow paths are arranged in parallel between the end portions and should be purified. The water purifier according to [1], wherein the stock solution can be purified by passing through the inside thereof from one end portion and taken out as a purification solution from the side surface portion side.

[3] The water purifier according to [1] or [2], wherein the material having nano-sized pores has a pore diameter of 5 to 20 nm.

[4] In any one of the above [1] to [3], among the cells, a cell in which an opening shape at the end portion is arranged so as to be linearly connected between the side surface portions is sealed. The water purifier described.

[5] It penetrates between the sealed cells and has a groove portion that opens to a side surface portion of the filter means and serves as a flow path for the cleaning solution, and is transmitted to the center portion of the filter means. The water purifier according to any one of [1] to [4], wherein the purified water can be directly taken out from the opening of the groove.

[6] Of the inner surface of the cell, the surface on which the stock solution is taken is covered with a porous ceramic film having finer pores than the cylindrical porous ceramic. The water purifier according to any one of [5].

  As described above, according to the present invention, due to the air accumulated in the filter means with use for a certain period of time, it is effective that the water drainage is deteriorated or the purification amount is reduced when the purification liquid is taken out. Provided is a water purifier that is preferably used as a process device, a domestic water purifier for tap water, and the like, particularly in the fields of chemical industry, food industry, and the like.

  Hereinafter, embodiments of the water purifier of the present invention will be specifically described with reference to the drawings.

  As shown in FIGS. 1-3, the water purifier 10 of the present invention has at least two end portions Y1 and Y2, and purifies the stock solution L to be purified by permeating the inside from one end portion Y1. And a water purifier having a filter means 1 to be taken out as the purification liquid J and a storage means 2 for storing the filter means 1 therein, the other end Y2 of the filter means 1 above the other end Y2. A lid member 3 is provided to cover the portion Y2 and prevent the purification liquid J from freely flowing out from the other end Y2 to the storage means 2 side, from one end Y1 of the filter means 1 The gas permeation means 4 is configured such that the introduced stock solution L can be taken out not from the other end Y2 but from the side surface S side thereof, and the lid member 3 is made of a material having nano-sized holes. The lid member 3 and the filter hand The gas A to accumulate in the space R formed by the first other end portion Y2, characterized that it is possible to automatically discharged to the outside via the gas transmission means 4.

  The stock solution L to be purified by the water purifier of the present invention is not particularly limited, and examples thereof include tap water; various liquids used in the chemical industry, the food industry, and the like.

  The filter means 1 used in the present invention is not particularly limited as long as the stock solution can be effectively purified and maintenance is easy. For example, the filter means 1 is made of a cylindrical porous ceramic and has an end Y1. , Y2 has a structure in which a plurality of cells 11 serving as fluid flow paths are arranged in parallel to each other, and the raw liquid L to be purified is transmitted from one end Y1 through the inside thereof. What can be purified and can be taken out as the cleaning liquid J from the side surface S side can be given as a suitable example.

  Since the filter means 1 used in the present invention is easy to handle and convenient for replacement, the above-mentioned porous ceramics (a combination of porous ceramics and activated carbon, etc. may be used. Examples of porous ceramics include: , Alumina, mullite, cordierite, silicon nitride, etc.), and other than the stock solution inlet and the purified solution outlet so as to surround it, the moldability is easy to mold. In addition, a filter cartridge including a filter case made of a synthetic resin such as PP, ABS, or PVDF, which is easy to collect and recycle after use, is preferable.

  Although there is no restriction | limiting in particular as the accommodating means 2 used for this invention, For example, plastics, such as metals, such as stainless steel, ABS, and an acrylic resin, can be mentioned as a suitable example.

  As the lid member 3 used in the present invention, a gas (air) can be efficiently accumulated by a gas permeation means 4 to be described later, and the accumulated gas (air) A can be automatically and reliably discharged outside. If it is, there will be no restriction | limiting in particular, For example, the thing of an upward convex dome shape can be mentioned. Suitable examples of the material include metals such as stainless steel, plastics such as ABS and acrylic resin, and the like.

  The gas permeation means 4 made of a material having nano-sized pores used in the present invention is not particularly limited as long as it can automatically and effectively permeate gas (air) for a long time. What was comprised from the film | membrane which has a pore diameter of -20nm can be mentioned as a suitable example. As a specific example of such a membrane having nano-sized pores, for example, trade name: Monotran film manufactured by NAC Co., Ltd. can be mentioned. This is made of polypropylene (PP) or polyethylene terephthalate (PET), and a communication hole having a pore diameter of 5 to 20 nm is formed on a film having a thickness of 25 to 200 μm.

  As shown in FIG. 3, as a specific example of the gas permeable means 4, an opening formed in a substantially central portion of the dome-shaped lid member 3 (for example, about 5 to 15 holes having a diameter of about 3 mm are provided. 3), a film 41 having a circular nano-sized hole with a diameter of 35 mm may be provided by bonding with an adhesive, fusion with ultrasonic waves, or the like.

  As shown in FIG. 2, it is preferable that the cells 11 that are arranged so that the opening shapes at the end portions Y1 and Y2 are linearly connected between the side surface portions S are sealed. In FIG. 2, those that are sealed (sealed cells 11 a) are indicated by black circles, and those that are not sealed are indicated by white circles. By comprising in this way, gas can be smoothly taken out to the cover body member side, without staying in a filter inside.

  As shown in FIGS. 1 and 2, the filter means 1 has a groove portion M that penetrates between the sealing cells 11 a and opens to the side surface portion S of the filter means 1 and serves as a flow path for the cleaning liquid J. It is preferable that the purified water J that has permeated through the central portion of the groove portion M can be directly taken out from the opening of the groove portion M. By comprising in this way, water flow resistance can be decreased and the amount of water flow can be increased by shortening the moving distance in the filter base material of purified water.

  Of the inner surface of the cell 11, the surface (not shown) on the side where the stock solution L is taken in is covered with a porous ceramic membrane whose pores are denser than the cylindrical porous ceramic. Is preferred. Examples of the porous ceramic film having finer pores than the porous ceramic include alumina and mullite. By comprising in this way, precise filtration can be performed without increasing water flow resistance.

  Hereinafter, the water purifier of the present invention will be described more specifically with reference to examples.

Example 1
The water purifier shown in FIG. 1 is prepared, with 50 cc of air in the stock solution, the initial state (the state adjusted so that there is no gas inside), immediately after the air is added, and 10 minutes after the air is added. “Time (seconds) until the purified water supplied from the water purifier stops after the faucet was stopped” was measured. The results are shown in Table 1. As the gas permeation means, seven holes with a diameter of 3 mm are formed in the central part of the lid member molded with ABS resin, and a product name: “Monotrans Film” manufactured by NAC Co., Ltd. is formed into a circular shape with a diameter of 35 mm. The one having a structure that is cut out and bonded to each other is used.

(Comparative Example 1)
Using the water purifier shown in FIG. 4, “time (seconds) until the purified water supplied from the water purifier stops after the faucet is stopped” was measured in the same manner as in Example 1. The results are shown in Table 1.

  From Table 1, it can be seen that the air in the filter was discharged within 10 minutes by the configuration of Example 1.

  The water purifier of the present invention is useful as a water purifier for process equipment in fields such as the chemical industry and the food industry, and as a household water purifier for tap water.

It is sectional drawing which shows typically one Embodiment of the water purifier of this invention. It is a partial cross section figure of the BB line in FIG. FIG. 2 is a partially enlarged view schematically showing a configuration example of a gas permeation means by enlarging a part of a portion C in FIG. 1. It is explanatory drawing which shows an example of the conventional water purifier typically. FIG. 5 is a partial cross-sectional view taken along line DD in FIG. 4.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Filter means, 2 ... Storage means, 3 ... Lid member, 10 ... Water purifier, 11 ... Cell, 11a ... Sealing cell, 31 ... Opening part, 4 ... Gas permeation means, 41 ... Nano size hole Membrane, 100 ... conventional water purifier, 110 ... filter means, 111 ... cell, 120 ... housing means, L ... raw solution, J ... purified liquid, A ... accumulated gas (air), X1, Y1 ... one end, X2 , Y2 ... the other end, S ... the side part, M ... the groove part, R ... the space.

Claims (6)

Filter means having at least two ends, purifying the stock solution to be purified by passing through the inside from one end, and taking out as a purified liquid, and storing means for storing the filter means in the interior A water purifier with
A lid member is provided above the other end of the filter means so as to cover the other end and prevent free flow of the cleaning liquid from the other end to the storage means. The stock solution taken in from one end of the filter means is configured to be able to be taken out from the side surface side rather than from the other end portion, and
The lid member is provided with gas permeable means made of a material having nano-sized pores, and the gas accumulated in the space formed by the lid member and the other end of the filter means, A water purifier which can be automatically discharged to the outside via the gas permeable means.   The filter means is made of cylindrical porous ceramics, and has a structure in which a plurality of cells serving as fluid flow paths are arranged in parallel between the end portions, and the stock solution to be purified is The water purifier according to claim 1, wherein the water purifier can be purified by permeating the inside from one end portion and taken out as a purification liquid from the side surface portion side.   The water purifier according to claim 1 or 2, wherein the material having the nano-sized pores has a pore diameter of 5 to 20 nm.   The water purifier according to any one of claims 1 to 3, wherein, of the cells, a cell in which an opening shape at the end portion is linearly connected between the side surface portions is sealed.   The purification device that penetrates between the sealed cells and has a groove portion that is opened in a side surface portion of the filter means and serves as a flow path for the purification solution, and is transmitted to the central portion of the filter means. The water purifier in any one of Claims 1-4 which can take out water directly from opening of the said groove part.   6. The cell according to claim 1, wherein, of the inner surface of the cell, the surface on the side where the undiluted solution is taken is covered with a porous ceramic film having finer pores than the cylindrical porous ceramic. The water purifier according to.

Images