TWI388370B - Water purification device, water purification device and the flow of Taiwan - Google Patents

Description

Water purification cartridge, water purification device and flow table

The present invention relates to a water purification cartridge, a water purification device having a water purification cartridge, and a flow table having a water purification device.

In the prior art, the flow station includes a faucet that discharges raw water such as tap water and well water, and a water purifying device that removes impurities such as bleaching powder, trihalomethane, organic matter, and fine particles contained in the raw water to form a net. Water and spit it out. Further, the flow table has a form in which water is discharged from the faucet and the water purifying device, respectively, and a water purifying device is disposed between the water supply pipe and the faucet that supplies the raw water to the faucet, and the effluent from the faucet is available from the raw water and the net. The form of switching is selected among the waters. In the form in which the water is discharged from the faucet and the water purifying device, both the raw water and the purified water can be directly obtained. On the other hand, in the form in which one of the faucets is selected to discharge raw water and purified water, it is possible to have a simple structure having only one discharge portion.

The water purifying device includes a filter unit that filters and purifies the raw water, and filters the impurities to be removed by the filter material (included in the raw water supplied to the filter unit) to generate purified water. For example, the filter unit is composed of an activated carbon adsorption unit and a hollow fiber membrane module; the activated carbon adsorption unit is composed of activated carbon, a substance for adsorbing bleaching powder taste, trihalomethane, etc.; The module is used to remove bacteria, microparticles, and the like that cannot be removed by activated carbon. Further, the activated carbon adsorption unit and the hollow fiber membrane module are formed as a water purification cartridge that can be integrally attached to or detached from the filtration unit. The water purification cartridge is exchanged for a new period every several months, and the like, so that the accumulated impurities are discharged to the outside, and the deterioration of the filtration performance due to the adhesion of the impurities is eliminated.

However, since the exchange work of the water purification cartridge is troublesome, it is desirable to have a long life water purification cartridge which can minimize the number of exchange operations. On the other hand, by increasing the surface area of the upstream water passing portion of the inflowing water of the filter medium, it is difficult to reduce the filtration performance accompanying the clogging, and the number of exchanges of the water purification cartridge is reduced. For example, as shown in Japanese Laid-Open Patent Publication No. 2006-15199, there is a water purification cartridge in which a cylindrically formed shaped activated carbon is used for a filter medium to form an outer peripheral surface of activated carbon as an upstream water passage portion. Further, a space in which the inner circumference of the activated carbon is formed is used as a downstream water passing portion, and a surface area of the upstream water passing portion is enlarged. The opening of the space is sealed on one side by an end cap and the other side is connected to the joint of the partition. Then, the water purification cartridge supplies the filtered water that has been filtered by the activated carbon to the hollow fiber membrane module only from the aforementioned port.

Here, when water does not flow from the outer peripheral surface of the cylinder and flows into the formed activated carbon from the end surface, a short circuit to the inner peripheral surface occurs before the impurities are sufficiently removed, and the impurity removal rate in the purified water is lowered. Therefore, in the above prior art, the disk-shaped flat portion (sealing portion) of the end cap and the annular plate surface (main body plate) of the separator are formed to have an outer diameter approximately equal to or slightly larger than the outer diameter of the formed activated carbon. The seal is made of a molten resin or the like on the annular end surface of the cylinder, and is fixed in a liquid-tight manner to prevent the inflow of water from the end surface thereof.

However, as described above, the surface area of the formed activated carbon is enlarged for the longevity of the water purification cartridge, but the previous water purification cartridge can only be enlarged by increasing the outer diameter and the axial dimension of the cylinder, thereby having a net The problem of the enlargement of the water cylinder. In addition, when the size of the water purification cartridge is increased, not only the manufacturing cost is increased, but also the external constituent members such as the water purification device and the flow table are easily contacted during exchange and transportation. Further, due to such an impact of contact, problems such as breakage and cracking occur, and there is a problem that the flexibility of use of the water purifying device and the flow table is lowered.

In view of the above, an object of the present invention is to provide a water purification cartridge that can be long-lived without increasing the shape of the activated carbon adsorption portion, and to provide a water purification device and a fluidity for improving the flexibility of use of the water purification cartridge. station.

A water purification cartridge according to the present invention includes: a shaped activated carbon which is formed into a hollow cylindrical shape as a filter medium, has openings on both end faces, and a sealing cap that closes an opening of the first end surface of the formed activated carbon. This water purification cartridge is characterized by the following configuration. The formed activated carbon is such that at least water flows in from the outer peripheral surface and the first end surface, and the filtered water flows out from the inner peripheral surface toward the inner peripheral space. Further, the space is sealed by the sealing cover, and the sealing cover has a cylindrical locking portion that protrudes from the opening of the first end surface toward the space. Further, the closing portion locks the inner circumferential surface of the shaped activated carbon by a predetermined size from the opening of the first end surface to prevent water from flowing out from the closed inner circumferential surface of the space.

In this configuration, in addition to the outer peripheral surface of the activated carbon, the first end surface also serves as an upstream water-passing portion for allowing water to flow into the molded activated carbon, and the upstream water-passing portion is increased to have two sides, thereby preventing large-scale formation of activated carbon. Increase the surface area of the upstream water passage. Further, in order to prevent the water from flowing out from the first end surface to the inner circumferential surface between the openings of the first end surface and the predetermined size, the locking portion is sufficiently formed to flow from the first end surface to the shortest distance from the inner circumferential surface. By removing the distance of the impurities more than this, it is possible to prevent the flow path in the formed activated carbon from being short-circuited. Therefore, the short circuit can be prevented, the deterioration of the filtration performance due to the clogging can be suppressed, the service life of the water purification cartridge can be prolonged, and the number of exchange operations accompanying the life can be reduced.

In one embodiment, the sealing cover includes a sealing portion formed in a disk shape for sealing the opening of the first end surface. The outer diameter of the sealing portion is set to be larger than the inner diameter of the opening of the first end surface and smaller than the outer diameter of the first end surface.

In this configuration, the formation of activated carbon allows water to easily flow from the surface not covered by the sealing portion of the first end surface.

In one embodiment, a gap in which water can enter is formed between the first end surface and the sealing portion.

In this configuration, the activated carbon is formed so that the water can flow not only from the surface not covered by the sealing portion of the first end surface but also from the surface covered by the sealing portion of the first end surface, that is, water can be excluded from the opening The entire surface of the first end face flows in.

In one embodiment, the sealing cover is fixed to the molded activated carbon by being pressed into the inner circumference of the shaped activated carbon from the opening of the first end surface by the closing portion.

In this configuration, it is easy to manufacture without using an adhesive, a sealant or the like.

In one embodiment, the size obtained by subtracting the outer peripheral radius of the formed activated carbon from the inner peripheral radius is T, and when the predetermined size at which the closed portion is closed is D, the size of the formed activated carbon and the closed portion is The ratio is in a relationship of 0.5 < T / D < 2.5.

In this configuration, by using the size ratio T/D within the above range, the free residual chlorine can be surely removed, and the filtration ability against free residual chlorine caused by the closed portion can be prevented from being lowered, and the flow rate of the filtered water can be suppressed from being lowered and filtered. The reduction in the amount of water produced ensures stable filtration performance.

In one embodiment, a separator is provided on the opening side of the second end surface on the side opposite to the first end surface of the molded activated carbon. The partition plate includes a main body plate including a connection port that communicates with the opening of the second end surface, and a cylindrical mounting portion that communicates with the inner circumferential contact port and is extended on the inner circumference to be extended from the main body plate Prominent to the aforementioned space. Further, the separator is attached to the molded activated carbon via the mounting portion, and not only the outer peripheral surface and the first end surface but also water flows into the molded activated carbon from the second end surface. The mounting portion locks the inner circumferential surface of the shaped activated carbon by a predetermined size from the opening of the second end surface to prevent water from flowing out from the closed inner circumferential surface.

In this configuration, since the separator is attached to the molded activated carbon via the mounting portion, the second end surface of the molded activated carbon also becomes the upstream water passing portion, and the area of the upstream water passing portion can be further increased. Further, for example, when the locking portion of the sealing cover is used as the first locking portion, the mounting portion can function as the second locking portion, and the mounting portion can prevent the inner circumference between the opening from the second end surface and the predetermined size. The outflow of water from the surface prevents short-circuiting of water flowing in from the second end face. As a result, the water purification cartridge can be made longer.

In one embodiment, the tubular member includes a tubular member that axially connects the locking portion and the mounting portion, and the tubular member has a plurality of water outlets on a circumferential surface thereof.

In this configuration, since the connecting pipe member is disposed between the closing portion and the mounting portion, the sealing cover can be reinforced in the axial direction, and even if the impact is applied to the water purification cartridge, the sealing cover can be prevented from falling off or falling. occur.

In one embodiment, the sealing cover has a picking portion, and the picking portion includes an insertion hole for insertion of a jig for removal.

In this configuration, the user can hold the water purification cartridge by the pick-up portion, and can perform the loading and unloading operation such as the exchange of the water purification cartridge without directly contacting the filter material. Therefore, when a new water purification cartridge is installed, it is possible to prevent impurities such as grease from the fingers from adhering to the new filter material to which the impurities have not adhered. On the other hand, when the old water purification cartridge is disassembled, the disassembly can be completed without contacting the impurities attached to the filter material, and the hygienic property can be improved. Further, the jig for attaching and detaching is inserted into the insertion hole and removed, and it is possible to prevent the finger or the like from slipping off due to the water adhering to the pick-up portion, thereby causing the water purifier to be dropped, and the exchange can be performed more safely.

In one embodiment, the water purifying device is provided with a filtering means for filtering impurities in the raw water, and the filtering means is provided with the above-described water purifying cartridge that can be detachably attached.

In this configuration, the water purifying device is provided with a water purification cartridge as described above as a filtering means. When the filtration performance is lowered by the impurities accumulated by the filtration, the filtration performance can be easily eliminated by exchanging the water purification cartridge. Moreover, the use of a long-life water purification cartridge can reduce the number of troublesome cleaning operations of the water purification cartridge, and can increase the flexibility of use.

In one embodiment, the fluidity stage includes a purified water generating means for generating purified water, and the purified water generated by the purified water generating means is discharged, and the water purifying means is used for the purified water generating means.

In this configuration, the flow table can use the purified water generated by the water purifying device, and when the filtration performance is lowered, the filtration performance can be easily eliminated by exchanging only the water purification cartridge provided in the water purifying device. . Moreover, since the water purification device uses a long-life water purification cartridge, the number of exchange operations is reduced, and the flexibility of use can be improved.

Hereinafter, each embodiment of the present invention will be described based on the drawings.

In the flow table 40 of the embodiment of the present invention, as shown in Fig. 7, the raw water such as tap water or well water supplied from the water supply pipe 41 can be introduced into the faucet 43 and the purified water by the water passage switching valve 42. The device 44 discharges the purified water generated by the raw water and the water purifying device 44, respectively. As shown in Fig. 6, the water purifying device 44 has a filter unit 45 that generates purified water by filtering the impurities from the raw water supplied from the water supply pipe 41, and discharges the purified water generated by the filter unit 45. Spitting pipe 49.

The filter unit 45 includes a casing having a water supply communication pipe 47 that communicates with the water supply pipe 41 and a water discharge communication pipe 48 that communicates with the water discharge pipe 49, and a water purification cartridge 1 that is detachably provided inside the casing 46. The water purification cartridge 1 has two kinds of filter materials. In other words, the raw water supplied from the water supply pipe 41 is sequentially filtered by the two filter materials of the water purification cartridge 1, and the impurities are removed from the raw water to generate purified water, which is then supplied to the water discharge pipe 49.

As shown in Fig. 1, the water purification cartridge 1 includes an activated carbon adsorption unit 2 that forms a hollow cylindrical shaped activated carbon 4 as a filter medium, and a hollow that is formed by collecting a plurality of porous hollow fibers. The silk film 23 serves as a hollow fiber membrane module 3 of a filter material. The activated carbon adsorption unit 2 and the hollow fiber membrane module 3 are integrally attached via the separator 13 and filtered by the activated carbon adsorption unit 2, and then filtered by the hollow fiber membrane module 3 to generate purified water. In other words, the water purification cartridge 1 is provided with the activated carbon adsorption unit 2 on the upstream side of the flow of the raw water, and the hollow fiber membrane module 3 is disposed on the downstream side of the flow of the purified water to be supplied to the discharge water pipe 49, and is detachably mounted. It is attached to the filter unit 45.

Further, the activated carbon adsorption unit 2 includes the above-described molded activated carbon 4 in which both ends of the axial direction C are annular, and a sealing cover 10. The sealing cap 10 is attached to one end of the molded activated carbon 4, and is sealed to form an opening on one end side of the activated carbon 4 to seal the cylindrical space 5 formed on the inner circumference of the shaped activated carbon 4. Further, on the other end side of the molded activated carbon 4, a separator 13 having an annular plate surface having the same size is attached, and an opening located at approximately the center of the separator 13 is a space 5 that communicates with the inner circumference of the formed activated carbon 4.

Therefore, the water (raw water) flowing outside the molded activated carbon 4 and the water (filtered water) flowing in the space 5 on the inner periphery of the formed activated carbon 4 are separated by the sealing cover 10 and the separator 13. Then, the water flowing to the space 5 will always pass through the formed activated carbon 4. In other words, the raw water flows into the surface of the inner circumference of the shaped activated carbon 4 after being filtered from the surface other than the inner peripheral surface 7 of the activated carbon 4, and then flows out from the space 5 of the inner circumference of the shaped activated carbon 4, and then from the other of the formed activated carbon 4 The opening on the one end side is supplied to the hollow fiber membrane module 3 through the opening of the separator 13.

As described in more detail, the sealing cover 10 is provided with a disk-shaped sealing portion 11 which is open at one end side of the seal-forming activated carbon 4, and a cylindrical locking portion 12 which is slightly larger or approximately the same as the shaped activated carbon. The size of the opening (inner circumference) of 4 protrudes from the plate surface of the sealing portion 11 and the same axis. That is, the sealing cover 10 is attached to the molded activated carbon 4 by pressing the locking portion 12 into the inner periphery of the shaped activated carbon 4. Further, the sealing portion 11 seals only the opening on the one end side of the molded activated carbon 4, and the raw water also flows into the inside of the molded activated carbon 4 from the end surface 8 (hereinafter referred to as the first end surface 8) on the one end side of the molded activated carbon 4. Here, the outer diameter of the sealing portion 11 is set to be larger than the inner diameter of the shaped activated carbon 4 as shown in Fig. 1, but smaller than the outer diameter of the shaped activated carbon 4, so that the first end surface 8 can be easily made The raw water flows into the surface that is not covered by the sealing portion 11. Further, in the present invention, the first end surface 8 and the peripheral portion of the sealing portion 11 are not fixed by an adhesive or the like, and the sealant is not filled between the first end surface 8 and the sealing portion 11 A gap into which water can enter is formed between the peripheral portions. Therefore, in the first end face 8, the raw water is not only the surface that is not covered by the peripheral edge portion of the sealing portion 11, but also flows in from the covered surface. Further, the outer peripheral surface of the lock portion 12 is press-contacted to the inner peripheral surface 7 of the molded activated carbon 4, and the pressure contact surface 7a of the inner peripheral surface 7 is closed by the lock portion 12 to prevent water from passing from the pressure contact surface 7a to the space. 5 outflow.

Further, the lock portion 12 of the present invention protrudes in a cylindrical shape, and is different from the case where only four legs of the above-mentioned prior art are provided, and the four legs are provided on the end cover, and have the minimum necessary for preventing water from flowing. The length of the limit.

Therefore, the raw water flowing into the molded activated carbon 4 from the first end surface 8 does not flow out to the space 5 until the tip end of the lock portion 12 protrudes toward the inner peripheral side, and the lock portion 12 ensures the positive removal. The flow distance of chlorine in the raw water flowing into the first end face 8. Further, the sealing portion 11 has a size larger than the inner diameter of the opening of the first end surface 8, and therefore, when the sealing cover 10 is attached, it can be positioned. Needless to say, the method of fixing the lock portion 12 to the molded activated carbon 4 is not limited to the press bonding by press-fitting, and the lock portion 12 and the shaped activated carbon 4 may be adhered by an adhesive member such as an adhesive. Alternatively, the sealing member such as a molten resin is interposed between the closing portion 12 and the shaped activated carbon 4 to adhere and lock the both.

Further, the sealing cap 10, the dimension D of the axial direction C of the closing portion 12, is preferably a thickness in the radial direction of the shaped activated carbon 4 obtained by subtracting the inner peripheral radius R1 from the outer peripheral radius R2 of the shaped activated carbon 4. Approximately half to about twice the size of the dimension T.

Here, the test was carried out based on the free residual chlorine removal performance test of the Japanese Industrial Standard JIS Standard S3201 Household Water Purifier Test Method. The test conditions were that water having a free residual chlorine concentration of 2.00 mg/L was used as the test water, and the flow rate of the water supplied to the filter medium, that is, the filtration flow rate was 2.0 L/min. The filter medium is a cylindrical formed activated carbon 4 having an outer diameter (diameter) of 28.5 mm, an inner diameter (diameter) of 8.5 mm, and a total length (dimension of the axial direction C) of 62 mm. Further, in the test, five kinds of latching portions 12 each having a size D of 4 mm, 5 mm, 8 mm, 10 mm, and 20 mm were used. Further, under the above-described conditions, when only raw water is allowed to flow from the outer peripheral surface 6 of the shaped activated carbon 4 to the inner peripheral surface 7, the free residual chlorine removal rate of the formed activated carbon 4 is 100%.

The results of the above tests are shown in Figures 2A and 2B. Figure 2A shows the measurement results of the free residual chlorine concentration of each size ratio T/D. In Figure 2B, the vertical axis is the free residual chlorine removal. The ratio of the horizontal axis to the size ratio T/D is a line connecting the size ratios T/D.

As shown in the above test results, when the size D of the lock portion 12 is 4 mm, chlorine remains in the clean water, and the removal of chlorine is insufficient. This is because the shortest distance from the first end face 8 (the plane on one end side) of the shaped activated carbon 4 to the inner peripheral surface 7 which is not blocked by the lock portion 12 is short, and thus a short circuit occurs. In addition, when the size D of the lock portion 12 is 20 mm, the shortest distance becomes long, the water flow resistance in the formed activated carbon 4 increases, the flow velocity in the activated carbon is remarkably attenuated, and the purified water flows out into the inner peripheral space 5. The amount of production is reduced (again, the amount of generated water is not shown).

In other words, when T/D ≧ 2.5, the shortest distance is too short, the water flow resistance is low, and the filtration capacity for removing chlorine is lowered. When T/D ≦ 0.5, the shortest distance is too long, and the water flow resistance is increased, and the water is purified. The amount of production is reduced. Therefore, in the seal cover 10, the size ratio T/D of the molded activated carbon 4 and the lock portion 12 is in the range of 0.5 to 2.5, and the filtration performance can be prevented from being lowered, and the filtration performance can be reduced, and the filter performance can be stably removed. Chlorine in raw water.

Further, the separator 13 is provided with a main body plate 14 composed of an annular plate having an end surface 9 on the other side of the molded activated carbon 4 (that is, a plane on the other end side, hereinafter referred to as a second end surface 9) Approximately the same outer diameter size. The opening located at the center of the main body plate 14 is a connection port 15 for supplying the filtered water filtered by the activated carbon adsorption unit 2 to the hollow fiber membrane module 3. Further, the surface on one side of the main body plate 14 serves as an abutting surface for the second end surface 9 of the molded activated carbon 4, and the abutting surface is formed into a cylinder having the same shape as the locking portion 12 of the sealing cover 10. The mounting portion 16 is provided to protrude toward the inner circumference of the shaped activated carbon 4.

In other words, the mounting portion 16 is press-contacted to the inner peripheral surface 7 of the molded activated carbon 4 in the same manner as the closed portion 12 of the sealing cover 10, and forms the second end face 9 on the inner peripheral surface 7 of the molded activated carbon 4 A second latching portion of the dimension D' portion of the axial direction C of the side to the circumferential surface. Therefore, the separator 13 is attached to the molded activated carbon 4 via press-fitting of the mounting portion 16, and the second end surface 9 and the separator 13 are not fixed by an adhesive or the like, and the second end surface 9 and the separator 13 are The gap between the water is formed. Further, the inner peripheral surface 7 on the second end face 9 side is also closed by the mounting portion 16 in the same manner as the inner peripheral surface 7 on the first end face 8 side that is in contact with the closing portion 12, and the raw water is not only formed from the formed activated carbon. The outer peripheral surface 6 or the first end surface 8 side of the fourth surface 4 may also flow into the formed activated carbon 4 from the second end surface 9.

As described above, in the activated carbon adsorption unit 2 of the present example, after the raw water flows into the molded activated carbon 4 from the outer peripheral surface 6 and the first end surface 8 and the second end surface 9, the unblocked portion is located between the lock portion 12 and the mounting portion 16. The inner peripheral surface 7 flows out of the filtered water into the space 5. Then, the filtered water is supplied to the hollow fiber membrane module 3 via the splice port 15. Further, the dimension D' of the mounting portion 16 in the axial direction C is preferably set to be half to two times the thickness T of the formed activated carbon 4, similarly to the size ratio T/D of the closing portion 12. The size between the two. Further, in the abutting surface of the separator 13, a plurality of concentric portions (not shown) formed by depressions are provided such that the axial centers coincide with the axis of the abutting surface, thereby A plurality of annular gaps are formed between the abutting surface and the second end surface 9 of the shaped activated carbon 4, thereby reducing the water flow resistance of the raw water entering between the two surfaces, and allowing the raw water to easily flow from the second end surface 9.

The hollow fiber membrane module 3 includes a bottomed cylindrical frame body 24 which is a bottom surface of the abutting surface of the partition plate 13 (back surface), and a hollow fiber membrane disposed inside the frame body 24 twenty three. The hollow fiber membrane 23 is formed by collecting a plurality of porous hollow fibers at the ends. Among the both end portions of the frame body 24, an opening end 25 having an opening is formed at an end portion on the opposite side of the bottom portion. The opening of the open end 25 is covered by the water collecting cover 26. Further, the hollow fiber membrane 23 is fixed to the open end 25 in a state in which the ends of the fibers are arranged on the same surface, and the gap between the end portions and the gap between the end portions 25 are The molding resin is landfilled.

The water collecting cover 26 includes a main body 28 composed of an annular plate having the same axial center and the same diameter as the frame body 24, an annular projection 29 for fixing, and a cylindrical connecting tube 31. The annular projection 29 is formed to protrude from the outer peripheral end of the surface facing the hollow fiber membrane 23 of the main body 28 toward the open end 25. The connecting pipe 31 is disposed on the axial center of one surface on the opposite side to the one surface of the main body 28, and communicates with a water collecting space portion 27 to be described later. The annular projection 29 is provided at the distal end of the axial direction C, and has a joint portion 30 joined to the outer peripheral surface of the opening end 25 side of the frame body 24, and the water collecting cover 26 is fixed to the frame by the joint of the joint portion 30. Body 24. Therefore, the water collecting space portion 27 is formed between the main body 28 and the opening surface of the opening end 25, and the filtered water which has been filtered by the hollow fiber film 23 to become purified water is concentrated, and then the inside of the water collecting space portion 27 is cleaned. Water is introduced into the connecting tube 31 through the approximately central opening of the body 28.

The connecting pipe 31 protrudes outward from the main body 28 in the axial direction C, and the outer periphery of the connecting pipe 31 is provided with a sealing member 32 made of an elastic body such as an O-ring. When the connection pipe 31 is inserted into the water discharge communication hole 48 of the filter unit 45, the sealing member 32 is interposed between the connection pipe 31 and the water discharge communication hole 48, and the connection pipe 31 and the water discharge communication hole 48 are interposed therebetween. seal. In other words, only the purified water concentrated in the water collecting space portion 27 is supplied to the water discharge pipe 49 via the connection pipe 31 and the water discharge communication hole 48, and the water purification cartridge 1 passes through the connection pipe by the elasticity of the sealing member 32. 31 is detachably attached to the filter unit 45.

As described above, by the seal cover 10 including the lock portion 12, the outer peripheral surface 6 of the activated carbon 4 is added, and the first end surface 8 also becomes the upstream water-passing portion of the activated carbon adsorption portion 2, compared to the formation of only the activated carbon 4 As one of the upstream water passing portions, the area of the upstream water passing portion can be increased. Further, since the size ratio (T/D) of the seal cap 10 to the formed activated carbon is 0.5 < T / D < 2.5, the filtration ability of the free residual chlorine can be prevented from being lowered, and the amount of generated filtered water can be prevented from being reduced. It ensures stable filtration performance.

Therefore, the formation of the activated carbon 4 can suppress the decrease in the filtration performance without increasing the size, and the life of the activated carbon adsorption unit 2 can be prolonged. Further, the second end surface 9 of the activated carbon 4 may be an upstream water passage portion, and the second attachment end portion 16 of the partition plate 13 of the hollow fiber membrane module 3 is defined as a second blocking portion. The surface area of the upstream water passage portion becomes longer as the life of the water purification cartridge 1 becomes longer. In addition, the activated carbon adsorption unit 2 in which the impurities are likely to adhere to the upstream side is placed on the upstream side, and the number of exchange operations by the life of the activated carbon adsorption unit 2 can be reduced, and the flexibility of use of the water purification cartridge 1 can be improved.

In addition, as the water purification cartridge 1 is long-lived, the water purification cartridge 1 is used as a water purification device 44 which is a filtering means, that is, the filter unit 45, and the number of times of troublesome cleaning operation of the water purification cartridge 1 can be reduced. Increase the flexibility of use. In addition, the flow table 40 in which the water purification device 44 is used for the purified water generating means for the generation of the purified water is also a flow table including the water purification cartridge which is long-lived as the filter material, and the exchange operation is performed. The trouble is alleviated and the flexibility of use can be improved.

In addition, the flow table 40 of the present invention is not limited to the faucet 43 and the discharge unit for the purified water, respectively, and may include a water purifying device between the water supply pipe 41 and the faucet 43 of the built-in water purifier or the like. 44. A flow table in which the raw water and the purified water are selected from the faucet 43 to spit water. Further, the water purifying device 44 of the present invention may be provided with an electrolysis unit that electrolyzes water, generates alkaline or acidic electrolyzed water, or adds a mineral component called magnesium or calcium to the purified water.

In addition, as an example of another embodiment of the water purification cartridge 1, the round pipe member 17 is disposed between the lock portion 12 on the inner peripheral side of the molded activated carbon 4 and the attachment portion 16, and the lock portion is integrally connected by the round pipe member 17. 12 and the mounting portion 16 to reinforce the formation of activated carbon 4. In the present embodiment, the description of the configuration similar to the above-described example is omitted, and the hollow fiber membrane module 3 is configured to be approximately the same as the above-described example, and a part of the same is omitted in the drawings corresponding to the present example.

Specifically, as shown in FIG. 3, the round pipe member 17 has a plurality of water outlets 18 that are formed in a rectangular shape from the outer circumference toward the inner circumference, and are formed into a lattice-shaped circular pipe. The filtered water filtered by the activated carbon 4 passes through a plurality of water outlets 18 and flows into the space 5. Further, the outer peripheral surface of the round pipe member 17 abuts against the inner peripheral surface 7 of the formed activated carbon 4, whereby the round pipe member 17 reinforces the formation of the activated carbon 4 from the inner peripheral side in the axial direction C and the radial direction. Further, one end of the circular tube member 17 in the axial direction C is joined to the end portion of the lock portion 12 by adhesion or fusion of an adhesive or the like, and the other end is bonded to the mounting portion 16 by adhesion or the like. The end portion thus, the round pipe member 17 connects and fixes the seal cover 10 to the partition plate 13.

Therefore, even when the water purification cartridge 1 is exchanged or conveyed, the molded carbon 4 is subjected to an impact from the outside even if it is in contact with the outer casing 46 of the filter unit 45 or the external constituent members of the flow table, and the occurrence of breakage or cracks can be suppressed. . Further, since the outer peripheral surface of the round pipe member 17 does not lock the inner peripheral surface 7 of the activated carbon 4, the filterability is not lowered, and the inflow of the filtered water into the inner peripheral space 5 is not hindered.

Further, since the seal cap 10 and the separator 13 are coupled and fixed, it is possible to prevent the seal cap 10 from being ejected from the formed activated carbon 4 due to the above-described impact, and the lock size is shortened. Further, even if the sealing cover 10 is subjected to an impact of the water hammer or the like in the axial direction C due to a change in the flowing water pressure, it is possible to prevent the sealing cover 10 from being caught in the space 5 or ejected from the formed activated carbon 4 The situation of falling off.

Further, the tubular member 17 is not limited to have a water-passing opening 18 that is formed in a rectangular shape, and may have a water-passing opening 18 that is formed in a circular shape or an elliptical shape, or a honeycomb shape in which a hexagonal opening is disposed, as a function of the reinforcing member. lattice.

Further, the round pipe member 17 may be integrally formed on one side of the sealing cover 10 or the partition plate 13. Further, in the above, the round pipe member 17, the seal cover 10, and the partition plate 13 are joined to each other by an adhesive or the like, but they may be joined by engagement. For example, as shown in Fig. 4, the round pipe member 17 and the partition plate 13 are integrally formed, and the round pipe member 17 is provided as an extended portion extending from the mounting portion 16 to the seal cover 10, and is mounted. The portion 16 and the tubular member 17 are coupled in this manner. The round pipe member 17 is provided with an engaging portion 19 at the distal end of the sealing cover 10, and the locking portion 12 is attached to the inner peripheral surface of the distal end side that protrudes toward the space 5, and is provided with a fitting for engaging with the engaging portion 19. Engagement portion 20. The lock portion 12 and the round pipe member 17 are coupled by the engagement of the engagement portion 19 and the engaged portion 20 . In other words, instead of joining the two members by integral molding, the joint can be reduced, and the engagement can be more easily bonded and fixed by the engagement, and the assembly of the water purification cartridge 1 can be improved.

Further, instead of providing the engaged portion 20, the engaging portion 19 may be formed as an elastic engaging claw, and the locking portion 12 and the tubular member 17 may be linked by the engaging claw hooking the locking portion 12. fixed. The engaged portion may be provided in the round pipe member 17, and the engaging portion may be provided in the closing portion 12. Further, for example, a female screw (not shown) may be formed on the inner peripheral surface of the distal end side of the lock portion 12, and a male screw (not shown) may be formed on the outer peripheral surface of the distal end side of the tubular member 17, and the lock portion 12 and the circle may be formed. The pipe member 17 is coupled and fixed by the round pipe member 17 being screwed to the lock portion 12. Alternatively, the engagement portion 16 may be joined to the round pipe member 17 or the sealing cover 10 may be integrally formed with the round pipe member 17. Further, the seal cap 10 may be provided with only the seal portion 11 without the lock portion 12, and the round pipe member 17 may be formed longer than the round pipe member 17 shown in Figs. 3 and 4, and the tubular member 17 may be formed. The outer peripheral surface of the front end side is adhered to the inner peripheral surface 7 of the molded activated carbon 4, and the front end of the extended round pipe member 17 and the sealing portion 11 are joined, and the front end of the round pipe member 17 and the first end face 8 are flush with each other. That is, in this configuration, the extended portion of the round pipe member 17 functions as the lock portion 12 of the seal cover 10. Of course, in the same manner, the partition plate 13 may be provided with only the main body plate 14 without the mounting portion 16, and the front end of the elongated circular pipe member 17 and the abutting surface of the partition plate 13 may be integrally joined to the second end face. 9 becomes the same face. At this time, the second end surface 9 of the molded activated carbon 4 is also used as the upstream water passing portion, and the extended portion of the round pipe member 17 functions as the mounting portion 16.

Further, as shown in Fig. 5, since the pick-up portion 21 is provided outside the seal portion 11 of the seal cover 10 in the axial direction C, the operator does not directly contact the formed activated carbon 4 when the water purification cartridge 1 is exchanged. The water purification cartridge 1 can be loaded and unloaded. In other words, when the new water purification cartridge 1 is attached, it is possible to prevent the activated carbon 4 from being contacted by the operator's hand or the forceps, and the grease or the like of the hand adheres to the formed activated carbon 4 or the formed activated carbon 4 is broken. Further, when the old water purification cartridge 1 is removed, it is possible to prevent the impurities adhering to the molded activated carbon 4 from coming into contact with the hand or the forceps of the operator, thereby improving the hygienic property.

Further, as shown in FIG. 5, the pick-up portion 21 has an insertion hole 22 penetrating in a direction perpendicular to the axial direction C, and when the water purification cartridge 1 is detached from the filter portion 45, the attachment and detachment jig having a hook or the like is provided. The water purification cartridge 1 can be detached by inserting the insertion hole 22 (not shown) and hooking it. Further, since the jig is hooked by the insertion hole 22 and detached, even if the water wets the picking portion 21, it does not slip off like a finger, and can be exchanged more safely.

Of course, the sealing portion 10 including the pick-up portion 21 is connected and fixed to the partition plate 13 via the round pipe member 17, and when the water purifying cartridge 1 is held by the pick-up portion 21, the cause can be reliably prevented. The impact from the outside causes the sealing cover 10 to fall off from the formed activated carbon 4, and the safety is further improved. Further, the picking portion 21 is not limited to the cylindrical or angular column shape which is the same as the axial center of the shaped activated carbon 4, and may be an annular shape which is the same as the axial direction of the sealing portion 11 and has a diameter along the sealing portion 11. a rectangle extending toward the extended strip portion; or a picking portion formed by inserting the annular member into the insertion hole 22 in advance. Further, it is preferable that the anti-slip portion (not shown) such as the groove or the unevenness is provided on the outer side of the circumferential surface or the side surface of the pick-up portion 21. In other words, when the operator picks up the picking portion 21, even if the water wets the picking portion 21 or the like, the slip preventing portion can prevent the fingers, the forceps, and the like from slipping off.

The present invention has been described in terms of several preferred embodiments, and various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the invention.

1. . . Water purification cartridge

2. . . Activated carbon adsorption unit

3. . . Hollow fiber membrane module

4. . . Shaped activated carbon

5. . . space

6. . . Peripheral surface

7. . . Inner circumference

7a. . . Crimp joint

8. . . First end face

9. . . Second end face

10. . . Sealing cap

11. . . Sealing part

12. . . Locking department

13. . . Partition

14. . . Body board

15. . . Connection port

16. . . Installation department

17. . . Round pipe member

18. . . Water outlet

19. . . Clamping department

20. . . Engaged part

twenty one. . . Picking department

twenty two. . . Insert hole

twenty three. . . Hollow fiber membrane

twenty four. . . framework

25. . . Open end

26. . . Water collecting cover

27. . . Water collection space department

28. . . Ontology

29. . . Annular protrusion

30. . . Joint

31. . . Connecting tube

32. . . Sealing member

40. . . Flow table

41. . . Water pipe

42. . . Waterway switching valve

43. . . Faucet

44. . . Water purification device

45. . . Filter section

46. . . shell

47. . . Water supply connecting pipe

48. . . Spouting pipe

49. . . Spitting pipe

Fig. 1 is a cross-sectional view showing an example of an embodiment of a water purification cartridge of the present invention.

Figure 2A is a test result of the free residual chlorine removal test.

Figure 2B is a test result of the free residual chlorine removal test.

Fig. 3 is a cross-sectional view showing a part of another embodiment of the water purification cartridge according to the present invention.

Fig. 4 is a cross-sectional view showing a part of a modification of the embodiment of the water purification cartridge of the present invention.

Fig. 5 is an enlarged cross-sectional view showing an important part of an example in which a sealing cap according to an embodiment of the water purification cartridge according to the present invention has a picking portion.

Fig. 6 is a cross-sectional view schematically showing an example of an embodiment of the water purifying device of the present invention.

Fig. 7 is a cross-sectional view schematically showing an example of the embodiment of the flow table of the present invention.

1. . . Water purification cartridge

2. . . Activated carbon adsorption unit

3. . . Hollow fiber membrane module

4. . . Shaped activated carbon

5. . . space

6. . . Peripheral surface

7. . . Inner circumference

7a. . . Crimp joint

8. . . First end face

9. . . Second end face

10. . . Sealing cap

11. . . Sealing part

12. . . Locking department

13. . . Partition

14. . . Body board

15. . . Connection port

16. . . Installation department

twenty three. . . Hollow fiber membrane

twenty four. . . framework

25. . . Open end

26. . . Water collecting cover

27. . . Water collection space department

28. . . Ontology

29. . . Annular protrusion

30. . . Joint

31. . . Connecting tube

32. . . Sealing member

Claims (12)

A water purification cartridge comprising: a shaped activated carbon formed into a hollow cylindrical shape as a filter material, having openings at both end faces; and a sealing cover that blocks an opening of the first end surface of the shaped activated carbon; the water purification cartridge The formed activated carbon is characterized in that at least water flows in from the outer peripheral surface and the first end surface, and the filtered water flows out from the inner peripheral surface toward the inner peripheral space, and the space is sealed by the sealing cap. The seal cap has a cylindrical lock portion that protrudes from the opening of the first end surface toward the space, and the lock portion blocks the inner peripheral surface of the molded activated carbon from the opening of the first end surface. Dimensions to prevent water from flowing out of the space that has been blocked from the inner circumference. The water purification cartridge according to claim 1, wherein the sealing cover is provided with a sealing portion, and the sealing portion is formed in a disk shape for sealing the opening of the first end surface, and the sealing portion is externally The diameter is set to be larger than the inner diameter of the opening of the first end surface and smaller than the outer diameter of the first end surface. The water purification cartridge according to claim 2, wherein a gap in which water can enter is formed between the first end surface and the sealing portion. The water purification cartridge according to claim 1, wherein the sealing cover is fixed to the inner circumference of the shaped activated carbon from the opening of the first end surface by the closing portion. The aforementioned shaped activated carbon. The water purification cartridge according to claim 1, wherein the size obtained by subtracting the outer peripheral radius of the formed activated carbon from the inner peripheral radius is T, and when the predetermined size of the blocking portion is set to D, The dimensional ratio of the shaped activated carbon to the above-mentioned blocking portion is in a relationship of 0.5 < T / D < 2.5. The water purification cartridge according to claim 1 or 5, wherein a partition plate is provided on an opening side of the second end surface opposite to the first end surface of the shaped activated carbon, and the separator has: a main body plate having a connection port that communicates with the opening of the second end surface; and a cylindrical mounting portion that communicates with the connection port and is extended on the inner circumference to protrude from the main body plate to the space; The plate is attached to the molded activated carbon via the mounting portion, and the formed activated carbon is not only the outer peripheral surface and the first end surface, but also water flows into the molded activated carbon from the second end surface, and the mounting portion is From the opening of the second end surface, the inner circumferential surface of the shaped activated carbon is locked to a predetermined size to prevent water from flowing out from the closed inner circumferential surface. The water purification cartridge according to claim 6, wherein the circular pipe member has a tubular member that axially connects the locking portion and the mounting portion, and the tubular member has a plurality of water outlets on a circumferential surface. The water purification cartridge according to any one of the preceding claims, wherein the sealing cap has a picking portion, and the picking portion has an insertion hole for inserting the jig for disassembly. The water purification cartridge according to claim 6, wherein the sealing cover has a picking portion, and the picking portion has an insertion hole for inserting the jig for disassembly. The water purification cartridge according to claim 7, wherein the sealing cover has a picking portion, and the picking portion has an insertion hole for inserting the jig for disassembly. A water purifying device, which is provided with a filtering device for filtering impurities in raw water, wherein the filtering means is a water purifying cartridge according to any one of claims 1 to 10. A flow table including a purified water generating means for generating purified water, and discharging the purified water generated by the purified water generating means, wherein the water purifying device according to claim 11 is used for a water purifying device The aforementioned water purification means.