JP2013158659A - Portable simplified water purifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cup-type portable simplified water purifier equipped with a simple purifying structure in low cost, capable of using it instead of a cup or a rice bowl especially placed in an office, a reading room, and a studying room or the like and capable of purifying water in a short time.SOLUTION: A portable simplified water purifier 1 includes a cup type container body 10 and a water purifying cartridge 20, and the water purifying cartridge 20 is configured to have a rigid hollow cylindrical body having a bottom part and is exchangeably stored/fixed in the container body 10. A water purifying agent includes a granular activated carbon and an ion exchange resin or the like, and is stored in the water purifying cartridge 20, the filling rate of the water purifying agent to the water purifying cartridge 20 is 20-90 volume%, a plurality of water passing holes 23a, 24a are formed in the peripheral surface of the hollow cylindrical body, and the water purifying agent is stored in the hollow cylindrical body via mesh materials.

Description

  In the present invention, raw water such as tap water and well water is subjected to a purification treatment that satisfies the water quality standard as drinking water in a short time inside the container body, and the portable water can be directly consumed from the container body. It relates to a type water purifier.

  Two types of water purification systems are known for general portable water purifiers. The first is to collect raw water in a water purifier storage container, pressurize the raw water through a pump means, and bring it into contact with a purifier such as activated carbon or zeolite contained in the container to adsorb chlorine or odor. In addition to removing off-flavors and filtering and purifying fine fungi and microorganisms through hollow fiber membranes, the second is from Japanese paper or non-woven fabric that contains a purifier such as activated carbon inside the water purifier storage container. A bag body or a water permeable container made of a wire mesh is directly immersed, and the raw water entering and leaving the bag body and the water permeable container is brought into contact with a purifier and purified using gravity. Most of the proposed portable water purifiers use these methods.

  As specific examples of the first water purification method, for example, JP-A-6-335671 (Patent Document 1), JP-A-10-137740 (Patent Document 2), JP-A 2000-301139 (Patent Document 3). JP-A-2003-311263 (Patent Document 4) and the like. Specific examples of the second water purification system include, for example, JP-A-62-149395 (Patent Document 5) and JP-A-62-2. 227489 gazette (patent document 6), patent 3495993 gazette (patent document 7), etc. can be mentioned.

  According to Patent Document 1, a hollow cylindrical container body with a bottom, which is a water storage container, is made of a thin, soft material made of various synthetic resins, and a connectable / detachable water purification unit is connected to the opening of the container body. Then, the container body filled with the raw water is squeezed with a finger to push the raw water toward the water outflow opening of the water purification unit. In the middle of this extrusion, raw water flows while contacting the hollow fiber membrane and activated carbon, and filtration and adsorption purification processes are performed to produce purified water. Although the water purifier proposed by patent document 4 is the same as patent document 1 and a water purification system, the order of the flow of the raw | natural water which flows through activated carbon and a hollow fiber membrane is reverse.

  Further, according to Patent Document 2, the container body is formed in a bellows shape, and the handle body is operated by hand by taking advantage of its elasticity, so that the container body is expanded and contracted, and the intake valve and the drain valve are switched as necessary. The raw water is taken from the water source or the purified water is drained.

  On the other hand, according to Patent Document 3, the upper container and the lower container can be separated by screw fitting, and the pump lever protrudes from the upper part of the upper container. Moreover, it has the purified water discharge nozzle connected to the pump part of an upper container in a water-sealed state. A raw water inlet is formed in the lower container, and a water purification cartridge is stored in the lower container. A raw water introduction hose is inserted into the raw water introduction port, one end of the hose is connected to the raw water inlet of the cartridge, and the other end of the hose is submerged in the raw water to operate the pump lever. The raw water is introduced into the water purification cartridge through the hose, and after the raw water is purified, the raw water is discharged from the purified water discharge nozzle.

  In Patent Document 5, water purification is performed by immersing a water-purifying pack in which water-permeable substances such as activated carbon and ion-exchange resin are wrapped in a water-permeable film-like material made of, for example, Japanese paper or nonwoven fabric, in water. . In addition, in the same patent document 5, when using the pack, the adsorption efficiency of chlorine is increased by shaking the pack immersed in raw water in a container such as a kettle or stirring the tap water in the container. Have been described.

  Patent Document 6 also purifies water by storing a substance having a water purifying ability in a bag made of non-woven fabric and immersing it in raw water. A water purification agent containing activated carbon and L-ascorbic acid and / or L-ascorbate is used as a substance having water purification ability at this time. Moreover, in the said literature 6, since the bag which consists of a nonwoven fabric containing the substance which has the said water purification ability will just float up in water and purification efficiency will become low, the said bag body is made from a spherical metal net body. It is housed in a settling tool, which is put into raw water and settled to purify the raw water.

  The water purifier of Patent Document 7 is composed of a bottle-type container body having a shape similar to that of a PET bottle, and a capsule having a water-permeable opening in the whole that can be stored and taken out from the bottle-type container. The capsule is formed into a perforated cylindrical shape having a canopy portion and a bottom portion using a metal plate, leaving the seam of the metal plate as a crack, and in a natural state where no force is applied from the outside, the capsule is a bottle. It has a size that cannot pass through the mouth opening of the mold container body, and is pressed inward against its elasticity to reduce the width of the crack and pass through the mouth opening. In this capsule, the capsule containing a water purification agent that purifies and activates raw water is immersed in the raw water in a bottle-type container to make purified water. Since the capsule in the bottle-type container is larger than the shed, it does not come out of the shed and is securely held in the bottle-type container.

JP-A-6-336571 Japanese Patent Laid-Open No. 10-137740 JP 2000-301139 A Japanese Patent Laying-Open No. 2003-311263 Japanese Patent Laid-Open No. 62-149395 JP-A-62-227489 Japanese Patent No. 3495993

  Here, since the portable simple water purifiers proposed by Patent Documents 1 to 4 all use the pump function, the structure of the water purifier inevitably tends to be complicated, and the number of parts also increases. Inevitably, there are many complicated assembly and disassembly operations, which tend to lead to an increase in production costs, and have a large impact on product prices. In that respect, since the portable simple water purifier proposed by Patent Documents 5 to 7 has a simple structure, the number of parts is small, and material costs and production costs can be kept relatively low. In addition to these problems, for example, in the portable simple water purifier of Patent Document 1, all the components are disposable due to its configuration, and further improvement is desired when considering the reuse of resources. .

  Incidentally, it is generally known that increasing the contact between the water purification agent and the raw water is effective for shortening the water purification time. Therefore, according to Patent Document 5, for example, in order to increase the adsorption efficiency of residual chlorine in the raw water, it is preferable to shake the water purification pack immersed in the raw water or to stir the raw water. However, in the portable simple water purifier as in Patent Document 5, when the water purification pack is shaken or the raw water is stirred, the container lid is removed and the stirring tool is inserted into the raw water from the outside. It is necessary to operate a stirrer and there is a high possibility that raw water will scatter around. On the other hand, for example, the bottle-type portable water purifier of Patent Document 7 is a plastic bottle type with a small drinking mouth, so that the stirrer can be used for the capsule for purified water contained in the raw water inside the lidded container. Not only is it difficult to use and shake the raw water itself, but it is also difficult to deform the capsule externally in the container when trying to remove the capsule from the container body, and the water purifier itself is completely discarded. Made for disposable use.

  On the other hand, in the same manner as described in Patent Document 7, when you want to drink purified drinking water, especially in an office, study, study room, etc. in an urban area, you can go to a nearby shop and drink drinking water. Recently, there are increasing cases of drinking tap water drawn indoors directly as drinking water. However, the amount of water that can be drunk at the office or home at this time is at most about a cup or teacup, and you can not drink more than that, and the remaining water will remain on the desk etc. until the next time you drink it. Often left on top. Moreover, if you want to drink, you will always want to drink.

  In recent years, the development of purification technology has been remarkable, and even if tap water is used for drinking, there has been little impact on health. However, many purification water, especially tap water, treated in large quantities by large purification facilities Is chlorinated, and there is a concern about the generation of trihalomethane, which is said to be carcinogenic in the purified water. Also, the musty odor due to the metabolism of microorganisms such as algae that grows under eutrophication of lakes and rivers that are water sources, and the odor of calcium emitted from residual chlorine is not suitable for drinking. For this reason, it is necessary to further purify the tap water that is drunk with the glass as described above, to further reduce the amount of residual chlorine, and at the same time to remove microorganisms and efficiently eliminate unpleasant odors in a short time.

  The present invention provides a cup-type portable water purifier with a simple purifying mechanism that can be used in place of a cup or teacup placed in an office, study, study room, etc., and can be purified in a short time. The purpose is to do.

  The present inventors have made various studies in order to achieve the above object. In a water purifier that is about the size of a cup, in order to increase the purification speed and purification efficiency, the surface area of the water purification agent itself contained in the water purifier is made as large as possible, and tap water is quickly and efficiently applied to the surface. Need to contact. In addition, the water purification agent itself is inexpensive and must adsorb chlorine and odors quickly and efficiently. As the water purification agent satisfying such requirements, activated carbon, ion exchange resin, and the like are suitable. These materials can be formed into various shapes. For example, it can be formed into powder, fine particles, fibers, or blocks having different sizes. However, when it is formed into a powder, it is difficult to handle in water and the handling becomes complicated. Moreover, when it is block shape, a contact area with water becomes small. Considering such circumstances, it is preferable to be fine particles.

  By the way, if particulate activated carbon etc. is directly immersed in tap water put in the container body, it will float on the top, not only will the purification be unevenly distributed, but also if you try to drink purified water directly from the container The fine particles of activated carbon get into the mouth with clean water, and each time you drink it, you feel uncomfortable. However, as described in Patent Document 6, after storing the particulate water purifier in a bag of paper or non-woven fabric, even if the bag is immersed in tap water, the water does not fall down. When trying to sink, like the water purifier of the said patent document 6, you have to add extra things, such as a settling tool unrelated to purified water.

  Furthermore, simply immersing a water purification pack containing a water purification agent such as activated carbon into the water in a stationary container body will not cause the flow of water, so the entire water in the container body will be used as a water purification agent. Difficult to contact. In order to make this contact efficiently, as described in Patent Document 5, the water purification pack is actively shaken in the purified water or the water is stirred to promote the flow of water into and out of the pack. It is desirable.

As described above, the portable simple water purifier of the present invention is a hand-held water purifier, assuming that the shape and size of the portable water purifier is close to that of a cup or teacup at home or at work. Since the whole container can be shaken (shaken), the water and the water purifier can be efficiently brought into contact with each other. However, since the water purifier itself is small, it can be easily held and shaken, but the water in the container body can easily spill out from the drinking mouth. To prevent this, it is necessary to attach a removable and highly sealable lid to the water purifier. Shaking here means moving the water purifier in your hand.

  Furthermore, it is desirable to use a container in which the particulate water purification agent accommodated in the container body does not move inside and outside the container, that is, a water purification cartridge having a water permeable hole through which water can be permeable and water purification agent cannot pass. This water purification cartridge can be composed of a rigid body or a mesh material such as a somewhat rigid paper or nonwoven fabric. Thus, these water purification cartridges can freely move inside the water purifier main body. For example, when the water purification cartridge is made of a rigid body, the water purification cartridge can be freely moved within the container main body of the water purifier. The water purification cartridge collides with the inner surface of the water purifier main body (container main body), and both the container main body and the water purification cartridge are easily damaged. Also, for example, when the water purification cartridge is composed of a rigid container or non-woven fabric, the water purification agent in the cartridge moves around with the movement of the water purification cartridge. The amount of water that should be achieved does not reach the desired amount, and the purification tends to be uneven, and the shaking time until the water is evenly purified becomes longer.

  Therefore, in the present invention, it is important to fix the water purification cartridge to a container body which is a water purifier body. If the water purification cartridge is a rigid body as described above, only the water purification agent contained in the cartridge can be taken out and discarded, but normally the cartridge and the internal water purification agent cannot be separated, and the whole can be replaced. A configuration is adopted. In order to make the entire cartridge replaceable, for example, the cartridge itself may be made of a rigid synthetic resin.

  By the way, as described above, when the water purifier is held in the hand and shaken for the required time and the water purifying cartridge fixed to the container main body, which is the main body of the water purifier, is moved together, the purified water stored in the water purifying cartridge It is desirable for the agent to be able to move about freely within the cartridge. At this time, the particulate water purification agent stored in the cartridge is directly put into the cartridge in a granular form, and the particulate water purification agent is once enclosed in a bag body made of a mesh material, and the bag body is cartridge There is a mode of storing in. In any aspect, it is necessary that the water purification agent accommodated in the water purification cartridge can freely move around within the cartridge to some extent. However, it has been found that if the water purifier moves freely in the water, purification is not always performed efficiently.

  The present invention has been developed by paying attention to these points. That is, as described above, if the amount of the water purification agent in the cartridge is too large, free movement of the water purification agent is suppressed, whereas if the amount of the water purification agent is too small, the contact area with water itself is reduced. Thus, the desired water purification treatment cannot be performed within the desired time. Therefore, many experiments including this point were repeated. As a result, it was found that as a factor affecting the efficiency of this water purification treatment, in addition to the filling rate of the water purification agent in the water purification cartridge, the shaking time and shaking speed are greatly related. As a result of such various studies, the present invention has finally been reached.

  A basic configuration of the present invention is a portable simple water purifier having a portable container body and a water purification cartridge, wherein the water purification cartridge is accommodated and fixed inside the portable container body in a replaceable manner, and is granular in the water purification cartridge. The water-purifying agent is contained, and the filling rate of the water-purifying agent with respect to the cartridge is 20 to 90% by volume.

The water purification cartridge is composed of a rigid hollow cylinder having a bottom, and preferably has a plurality of through holes in the peripheral surface of the water purification cartridge, and the water purification agent penetrates below the particle size of the granular water purification agent. It is desirable that the hollow cylindrical body is housed in a hollow body having a hole and a hollow body having a bottom and a covered lid or a fiber bag body such as a net, a woven or knitted fabric, a nonwoven fabric, and paper. It is preferable that the hollow cylinder of the water purification cartridge has a removable cartridge lid, and a plurality of through holes are formed in the cartridge lid.

  When the filling rate of the particulate water purification agent in the water purification cartridge is smaller than 20% by volume, the ratio of the amount of the water purification agent to the amount of water in the container body is small, the absolute contact area with water is small, and the purification time is small. Extremely long. Experiments have shown that when a person holds the water purifier in his hand and continues to shake at a rate of once per second, the limit is to continue for 1 minute. With a filling rate of 20% by volume or less, it is difficult to reach the water quality standard as drinking water for all water even with a shaking time of 1 minute. Further, if the shaking is continued for a long time, the particulate activated carbon is liable to be damaged and the production of fine powder becomes intense. On the other hand, if the filling rate of the particulate water purification agent exceeds 90% by volume, the movement of the particulate water purification agent becomes dull and it becomes difficult for the water to freely come into contact with the water purification agent, so the contact area with water is also limited. Therefore, even if the filling rate is increased beyond 90% by volume, the purification amount of water is reduced. According to experiments, the most ideal filling rate is 60% by volume when limited to the reduction rate of residual chlorine.

  When the water purification agent is stored in the water purification cartridge via the bag body made of the mesh material, the mesh of the bag body containing the water purification agent needs to be smaller than the particle size of the water purification agent. By the way, in this embodiment, the particle diameter of the activated carbon which is a water purification agent is 0.3 mm, and the first opening of the net woven with synthetic fiber filaments is 0.2 mm square. If the water purifier bag mesh is larger than the particle size of the water purifier, the water purifier moves out of the bag and mixes with the water in the container body of the water purifier. In addition, a large number of through holes are formed on the peripheral surface of the water purification cartridge made of a hollow cylinder so that water can easily pass inside and outside. The raw water passes inside and outside the water purification cartridge through the through hole in the peripheral surface, and efficiently contacts and purifies the water purification agent in the cylinder. At this time, when a plurality of through holes are formed in the canopy portion of the water purification cartridge, the water flows through the peripheral surface or the through holes of the canopy portion so as to cross the cylinder in the horizontal direction and the vertical direction. By moving the particulate water purification agent in multiple directions, the chance of contact increases, and more efficient purification is performed.

  There is also a correlation between the shaking speed of the main body of the portable container, the reduction rate of free residual chlorine in the raw water, and the amount of fine powder of the water purification agent. For example, the filling rate is 60% by volume or more, and the rotation speed of shaking is 100 rpm. If it carries out above, the free chlorine removal rate will be 80% or more. For example, according to the standard of JIS S 3201, this free chlorine removal rate is classified as a water purifier when the free residual chlorine removal rate is 80% or more when the raw water concentration is 2.00 ppm. become. On the other hand, if the filling rate is 60% by volume or more and the shaking rotation speed is 200 r.p.m or less, the amount of fine particulate activated carbon powder flowing out into the water purification container is 2 NTU or less. When the water purifier is activated carbon (GW 10/32), when tap water is used for drinking, the upper limit of the water quality standard for drinking water is set to 2 NTU.

  In view of the above, in the present invention, the filling ratio of the granular activated carbon is more preferably 60 to 90% by volume, the shaking rotation speed of the container body is 100 rpm or more and 200 rpm or less, and the shaking time is 30. The free chlorine removal rate at -60 seconds is 80% or more, and when the portable container is shaken for 30-60 seconds at a rotation speed of 200 rpm, the activated carbon is damaged and flows out as fine powder. If the amount to be generated is 2 NTU or less, even if it is used for drinking, it does not feel uncomfortable.

In the present invention, it has been found that the limit of time that a person can shake with a water purifier in his / her hand without feeling fatigue is 60 seconds. However, if the generation of fine powder and the shaking time are not taken into consideration, the free chlorine reduction rate can be increased as the shaking time is increased. In order to increase the contact area with water, it is only necessary to increase the shaking rotation speed of the water purifier, but if the shaking rotation speed is increased too much, the internal water purifier will move violently, causing damage to the fine powder. Occurrence can lead to an increase.

It is a front view which shows an example of the external appearance of the portable simple water purifier of this invention. It is sectional drawing of the portable simple water purifier. It is the disassembled perspective view which looked at the water purifier from diagonally upward. It is a front view of the water purification cartridge accommodated and fixed to the water purifier. It is a disassembled perspective view which shows the external appearance of the said water purification cartridge. It is a perspective view of the cartridge holder fitted inside the water purifier. 3 is a graph showing the results of Example 1 and Comparative Example 1. It is a graph which shows the result of Example 2 and Comparative Example 2. It is a graph which shows the result of Example 3 and Comparative Example 3.

  Hereinafter, the present invention will be specifically described based on preferred embodiments with reference to the drawings and tables. The present invention is not limited to the embodiments described below, and various modifications are possible within the scope of the matters described in the claims.

First, the structure of a portable simple water purifier which is a typical embodiment of the present invention will be specifically described.
FIG. 1 is a front view showing an example of the appearance of a portable simple water purifier of the present invention, and FIG. 2 is a cross-sectional view thereof. FIG. 3 is an exploded perspective view of the water purifier as viewed obliquely from above, FIG. 4 is a front view of the water purification cartridge housed and fixed in the water purifier, and FIG. 5 is an exploded perspective view showing the appearance of the water purification cartridge. FIG. 6 is a perspective view of a cartridge holder fitted into the water purifier.

  The portable simple water purifier 1 according to the illustrated embodiment includes a container body 10 having a cup shape, a water purification cartridge 20 that is detachably accommodated in the container body 10, and an upper end portion of the water purification cartridge 20 from above. It has a cartridge holder 30 to be held, and a lid body 11 that is detachably fitted into the upper end opening (a drinking mouth) of the container body 10 by a bayonet mechanism. A seal ring 12 is interposed between the lid 11 and the upper end opening of the container body 10 to maintain water tightness. The said container main body 10 is comprised, for example from AS resin, and protrusion 10a 'protrudes along the inner peripheral surface of the upper end opening (drinking mouth), and the protrusion which has a mountain shape with the lower surface in the center of the bottom face of the container main body 10 The part 10b bulges upward. For example, ABS resin is used as the material of the lid 11. Incidentally, in this embodiment, the material of the cartridge holder 30 is MBS resin. However, the material of each member in the present invention is not particularly limited to the illustrated example as long as it is a thermoplastic resin.

  In the present embodiment, the lid 11 is fitted into the upper end opening of the container body 10 from the inside by a bayonet mechanism, but may be fixed by screwing. According to the illustrated example, the four protrusions 10 a ′ are formed in the upper end opening of the container body 10 as described above, and the four protrusions 10 a ′ are formed on the outer peripheral surface of the fitting portion of the lid 11. A groove 11a having a key shape is formed to fit each. When the lid 11 is fitted into the upper end opening of the container body 10, the lower end of the lid 11 is in close contact with the upper surface of a first ring 31 (to be described later) of the cartridge holder 30.

The water purification cartridge 20 includes a cartridge main body 21 made of a bottomed hollow cylinder and a cartridge lid 22 attached to the upper end opening of the cartridge main body 21. The cartridge main body 21 has a vertical lattice portion 23 and a horizontal lattice portion 24 adjacent to each other along the circumferential surface thereof and arranged with a phase difference of 180 °. The vertical lattice portion 23 has a plurality of vertical rectangular first openings (water passage holes) 23a, and the horizontal lattice portion 24 has a plurality of horizontal rectangular second openings (water passage holes) 24a. Yes. Further, a ring-shaped flange portion 21 a is projected from the upper end opening of the water purification cartridge 20 along the outer peripheral surface thereof. The upper surface of the ring-shaped flange portion 21a is a horizontal surface for holding the cartridge holder 30 from below. Further, in the center of the bottom surface of the bottom portion of the water purification cartridge 20, a recessed portion 21b is formed for fitting the tip of the mountain-shaped protruding portion 10b bulged to the bottom portion of the container body 10. Four engaging holes 21c having a phase difference of 90 ° are formed in the peripheral edge of the water purification cartridge 20 above the ring-shaped flange portion 21a. The cartridge lid 22 will be described later in the engaging holes 21c. The engaging claw 22b is engaged to integrate the cartridge main body 21 and the cartridge lid 22 together.

  As shown in FIGS. 4 and 5, the cartridge lid 22 has a shape that approximates an inverted cup, and the lower end opening has the same shape and the same size as the upper opening of the cartridge body 21, and the opening Four engaging claws 22b are formed at four positions corresponding to the formation sites of the four engaging holes 21c formed in the cartridge main body 21 along the periphery. The engaging claw 22b includes a vertical piece 22b 'extending vertically downward from the inner surface of the peripheral edge of the lower end opening of the cartridge lid 22, and a claw piece bent from the lower end of the vertical piece 22b' and projecting radially. 22b ". In order to close the upper opening of the cartridge body 21 with the cartridge lid 22, the engagement holes 21c corresponding to the engagement claws 22b are made to correspond to each other and the lower end opening of the cartridge lid 22 is opened. Is pushed down in a state of being brought into contact with the upper opening of the cartridge main body 21, each vertical piece 22 b ′ is elastically deformed, and the claw pieces 22 b ″ of the respective engagement claws 22 b are engaged with the corresponding engagement holes 21 c, And the cartridge lid 22 are integrally engaged.

  Thus, before the cartridge main body 21 and the cartridge lid 22 are engaged, granular activated carbon or ion exchange resin as a water purification agent is accommodated in the cartridge main body 21. In the present invention, when the water purification agent is put into the cartridge main body 21 in a granular form, the through hole, which is a water passage hole formed in the cartridge main body 21, is larger than the particle size of the water purification agent. Although not shown in the figure, the water purifier is stored in a bag made of a net having an appropriate mesh, for example, obtained by using a synthetic resin monofilament, and this is stored in the cartridge body. 21. The volume of the bag body at this time and the filling amount of the water purification agent to be stored are determined in consideration of the volume of the cartridge main body 21 and the filling rate of the bag body.

  In the present embodiment, two water passage holes 22 c are formed through the top plate of the cartridge lid 22. This water passage hole 22c also has the first and second openings (water passage holes) 23a, 24a of the vertical lattice portion 23 and the horizontal lattice portion 24 formed in the cartridge main body 21 and water contained in the container main body. It becomes a water flow opening, complicates the direction of water flow, and water comes into contact with the water purification agent from multiple directions, leading to an improvement in purification efficiency. In the present invention, the water passage hole 22c formed in the top plate of the cartridge lid 22 can be eliminated. Further, when the cartridge lid 22 has a peripheral wall portion that comes into contact with water when the cartridge lid 22 is closed, a water passage hole (through hole) can also be formed in the peripheral wall portion.

As shown in FIG. 6, the cartridge holder 30 is provided with a first ring 31 and a second ring 32 at a desired interval in the vertical direction, and there are five between the first and second rings 31 and 32. The connection rod 33 is connected. The connection by the connection rod 33 may be linear, but the connection positions of the connection rods 33 are shifted with a slight phase difference between the first and second rings 31 and 32 to connect the connection rods 33. . In other words, the connecting rods 33 are attached so as to be twisted between the first and second rings 31 and 32. By connecting in this way, even if a slight variation occurs in the distance between the first and second rings 31 and 32, it can be accepted.

  The outer diameter of the first ring 31 is substantially equal to the inner diameter of the upper end opening of the container main body 10, and the ring-shaped protrusion 10 a protrudes along the inner peripheral surface of the upper end opening of the container main body 10 on the outer peripheral surface thereof. Are provided with two ring strips 31a and 31b. On the other hand, the outer diameter of the second ring 32 is equal to the outer diameter of the upper end opening of the water purification cartridge main body 21, and the lower end of the second ring 32 protrudes along the outer peripheral surface of the upper end opening of the cartridge main body 21. Are placed in close contact with the upper surface of the flange portion 21a.

  Now, in order to fix and hold the water purification cartridge 20 to the container body 10, first, the cartridge lid 22 side of the cartridge body 21 is inserted into the first ring 31 via the second ring 32 of the cartridge holder 30, and the cartridge holder 30. Is supported from below by the water purification cartridge 20. Next, in this state, the water purification cartridge 20 and the cartridge holder 30 are inserted together through the opening of the container body 10. At this time, when the center of the bottom of the water purification cartridge 20 is inserted toward the center of the bottom of the container main body 10, the mountain-shaped protrusion 10 b formed on the bottom of the container main body 10 is formed in the recess 21 b formed on the bottom of the water purification cartridge 20. The upper end of the is fitted.

  Here, when the container body 10 is closed with the lid 11, as described above, the lower end of the lid 11 is in close contact with the upper surface of the first ring 31, and the bottom recessed portion 21 b of the water purification cartridge 20 is a portable simple water purifier. It will be in the state firmly supported from the bottom by the protrusion part 10b which bulges upwards from the bottom part of the container main body 10 of the container 1. FIG. Thus, the water purification cartridge 20 is positioned and fixed inside the container body 10 of the portable water purifier 1 in a form sandwiched between the cartridge holder 30 and the protrusion 10b formed on the bottom of the container body 10. Is done.

  To shorten the water purification time, it is effective to shake the container in order to increase the contact with the raw water. However, in the conventional simple water purifier, the cartridge is not fixed and the container is often damaged.

In the present invention, the granular water purification agent is stored in the water purification cartridge 20 in a state of being stored in a mesh-like bag body that has water permeability but prevents passage of the granular water purification agent. Here, as a result of accumulating various experiments, as described above, it is important to shake (shake) the entire water purifier by hand in order to efficiently contact the water with the granular water purifier. At this time, it has been found that the filling rate of the water purification agent into the water purification cartridge 20 greatly affects the water purification efficiency. Therefore, the most characteristic configuration in the present invention is how to make the volume of the water purification cartridge 20, the size of the bag body, and the filling rate of the water purification agent stored in the bag body appropriate values. is there. Since the filling rate is relatively determined by the volume of the water purification cartridge 20 and the volume of the bag body, in the following description, this is simply referred to as the filling rate for the water purification cartridge 20.
Hereinafter, the present invention will be described in detail based on specific embodiments with reference to the accompanying drawings and tables.

[Example 1 and Comparative Example 1]
# Implementation conditions Water purification agent: Activated carbon GW 10/32 with a particle size of 0.3 mm
Raw water used: Chlorine concentration 2.0ppm
Shaking rotation speed: 100r.pm
Shaking time: 30 seconds, 60 seconds, 120 seconds, 180 seconds Used bag body: A plain weave network woven with synthetic fiber filaments, the first opening is 0.2 mm
Square filling rate: 10 vol%, 20 vol%, 40 vol%, 60 vol%, 90 vol%, 95 bodies
product%

  Under the above implementation conditions, the average reduction rate of free residual chlorine was calculated based on the measurement results of three times for each condition. The results are shown in Table 1 and FIG. FIG. 7 is a graph of Table 1. From these tables and drawings, when the shaking time at which the reduction rate of free chlorine exceeds 80% is 30 seconds, no filling rate is reached, and when the shaking time is 60 seconds, it is 20 to 90% by volume. It can be seen that the time is 10 to 90% by volume at 120 seconds.

  However, as described above, when the shaking time of the water purifier exceeds 60 seconds, a feeling of fatigue is felt, and it becomes difficult to shake more than that. Considering this point, it is reasonable to limit the shaking time to 30 to 60 seconds.

  On the other hand, when the filling rate is 10% by volume and 95% by volume, the reduction rate of free chlorine gradually increases as the shaking time is lengthened. It takes 180 seconds (3 minutes) to make the reduction rate of chlorine 80% or more, and it cannot be adopted at all.

[Example 2 and Comparative Example 2]
The results of Example 2 and Comparative Example 2 are shown in Table 2 and FIG.
Implementation conditions are the same as those in Example 1 and Comparative Example 1, except that GW10 / 32 was used as the activated carbon.

From Table 2 and FIG. 8, with the shaking time of 30 seconds, the free residual chlorine reduction rate does not reach 80% regardless of the filling rate. When the shaking time is 60 seconds, it can be seen that if the filling rate is 20 to 60% by volume, the free residual chlorine reduction rate exceeds 80%. On the other hand, when the filling rate is 10% by volume, the free residual chlorine reduction rate is 67.2% even if the shaking time is 120 seconds, and when the filling rate is 95% by volume, the shaking time is further 180 seconds. Even if it is long, the reduction rate of free residual chlorine finally reaches 60%.
As far as Examples 1 and 2 and Comparative Examples 1 and 2 are seen, it is effective for the de-free chlorine treatment that the packing ratio of the granular activated carbon is in the range of 20 to 90% by volume.

[Example 3 and Comparative Example 3]
In Example 3 and Comparative Example 3, the relationship between the amount of fine powder (NTU) of the water purification agent (activated carbon) generated during the purification of tap water by the portable simple water purifier of the present invention and the shaking time was measured. . The working condition was that the amount of fine powder in raw water (tap water) was 0.1 NTU. The tap water is shaken with the simple water purifier in the above embodiment of the present invention, with the same filling rate as in Example 1 and Comparative Example 1, and the fine powder made of activated carbon every 8 seconds, 20 seconds, and 30 seconds. The generation amount (NTU) of was measured. The amount of fine powder generated (NTU) was measured three times for each filling rate, and the average value was defined as the amount generated (NTU). The results are shown in Table 3 and FIG. According to tap water quality standards, potable water must be 2 NTU or less.

  According to Table 3 and FIG. 9, when the shaking time is 20 seconds or less and the filling rate is 60% by volume or more, it is understood that the water quality standard as drinking water is cleared. However, as described above, if the shaking time is 20 seconds or less, the free residual chlorine reduction rate does not reach 80%, so it cannot be used as a water purifier.

  As described above, from the results of Examples 1 to 3 and Comparative Examples 1 to 3, in order to simultaneously satisfy that the free residual chlorine reduction rate is 60% or more and the generation amount of activated carbon fine powder is 2 NTU or less, It turns out that it is preferable to make the filling rate of activated carbon into 60-90 volume%.

  Table 4 shows the case of the activated carbon in the case where the water purification cartridge has an opening (water passage hole) only on the peripheral surface and the case where the cartridge lid has an opening in addition to the opening on the peripheral surface. The free residual chlorine reduction rate by the different shaking time when the filling rate is 60% by volume is shown. According to Table 4, free residual chlorine is reduced when the cartridge lid is opened, regardless of the length of the shaking time, whether the cartridge lid is opened or not. The rate is high. This is because not only the peripheral surface of the water purification cartridge but also the opening in other parts of the cartridge complicates the flow of water into and out of the water purification cartridge, increasing the contact area of water with activated carbon and free residual chlorine. Means to adsorb efficiently.

Table 5 shows that the filling ratio of granular activated carbon with respect to the water purification cartridge is 60% by volume, the rotation speed of shaking is 200 rpm and 100 rpm, and each shaking rotation speed is 8 seconds, 20 seconds, 30 seconds, The measurement results are shown for the reduction rate of free chlorine (%) and the amount of fine powder generated (NTU) generated from granular activated carbon when shaking is performed in five shaking times of 60 seconds and 90 seconds. The number of experiments at this time is also three, and the numerical values shown in Table 5 are average values thereof. In these experiments, as can be understood from Table 5, the generation amount of fine powder satisfies the standard as drinking water in all cases, but the reduction rate of free residual chlorine is a shaking rotation speed of 200 rpm. In all cases, except for 8 seconds, all exceeded 80%, and even when the rotational speed of shaking was 200 rpm, the shaking time exceeded 60% for 60 seconds or more. It can also be seen that the free residual chlorine reduction rate increases with each shaking rotation speed and shaking time.

DESCRIPTION OF SYMBOLS 1 Portable portable water purifier 10 Cup-shaped container main body 10a Ring-shaped protrusion 10a 'Protrusion 10b Mountain-shaped protrusion 11 Lid 11a Groove 12 Seal ring 20 Water purification cartridge 21 Cartridge main body (hollow cylinder)
21a Ring-shaped flange portion 21b Recessed portion 21c Engaging hole 22 Cartridge cover 22b Engaging claw 22b 'Vertical piece 22b "Claw piece
22c Water flow hole 23 Vertical lattice part 23a 1st opening (water flow hole)
24 horizontal lattice part 24a 2nd opening (water flow hole)
30 Cartridge holder 31 First ring 31a, 31b Ring strip 32 Second ring 33 Connecting rod

Claims (4)

A portable water purifier having a portable container body and a water purification cartridge,
The water purification cartridge is housed and fixed in an exchangeable manner inside the portable container body,
A granular purification agent is accommodated in the water purification cartridge,
The filling ratio of the cleaning agent to the cartridge is 20 to 90% by volume.
A portable water purifier.   The portable simple water purifier according to claim 1, wherein the water purification cartridge is composed of a rigid hollow cylinder having a bottom, and has a plurality of through holes on a peripheral surface of the water purification cartridge.   The water-purifying agent has a through-hole having a particle size equal to or less than that of the granular water-purifying agent, and has a hollow body with a bottom, a covered lid, or a fiber bag body such as a net, woven or knitted fabric, non-woven fabric, or paper. The portable simple water purifier according to claim 2, which is housed in the body.   The portable simple water purifier according to any one of claims 1 to 3, wherein the hollow cylindrical body of the water purification cartridge has a removable cartridge lid, and a plurality of through holes are formed in the cartridge lid.

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