JP4462337B2 - Water purification cartridge and water purifier provided with the same - Google Patents

Description

  The present invention relates to a water purification cartridge and a water purifier provided with the same.

  In general, a water purifier 50 that purifies raw water is provided with a water purification cartridge 1 that accommodates a water purification unit 4 that purifies raw water in a cartridge housing 28 that forms an outer shell. The raw water purification treatment generally includes an adsorbent adsorbing action and a filtering action, and the water purifying section 4 is often made of activated carbon or a hollow fiber membrane capable of acting the above action. Since the treatment capacity of such a water purification unit 4 decreases when used over time, it is easy to use and maintain good purification performance of the water purifier 50 by replacing the water purification cartridge 1 itself containing the water purification unit 4. is there.

  For example, the water purifier 50 described in Patent Document 1 is also provided with a replaceable water purification cartridge 1 containing the water purification unit 4. As shown in FIG. 5, the water purifier 50 is provided with a raw water reservoir 51 in the upper part and a purified water reservoir 52 in the lower part, and the purified water so as to connect the raw water reservoir 51 and the purified water reservoir 52. A cartridge 1 is mounted. In this water purification cartridge 1, the raw water from the raw water storage part 51 passes through the water purification part 4 by its own weight, and the purified water flows down to the purified water storage part 52 from the purified water discharge port 9 provided at the lower end of the cartridge housing 28. Yes.

  By the way, the cartridge housing 28 not only collects and stores granular materials such as activated carbon constituting the water purification unit 4, but also forms a hollow that constitutes the water purification unit 4 even if it hits something when handling the water purification cartridge 1. It also plays a role in protecting the yarn membrane. Therefore, the water purification outlet 29 provided at the lower end of the water purification unit 4 is positioned above the water purification outlet 9 of the cartridge housing 28 so as not to face the outside from the water purification outlet 9 of the cartridge housing 28. It is desirable to provide an outlet space 30 between the purified water discharge port 9 and the purified water outlet 29 of the purified water portion 4 because the purified water portion 4 can be completely accommodated in the cartridge housing 28 and protected (see FIG. 1 etc.).

However, when the purified water cartridge 1 having the outlet space 30 at the lower end portion is used in the water purifier 50 of FIG. 5, the purified water stored in the purified water storage portion 52 is located above the lower end portion of the purified water cartridge 1. In the state where the water level is raised, the air contained in the purified water and the air that was in the purified water storage section 52 before the purified water is stored are accumulated in the outlet space 30 of the purified water cartridge 1 so that there is no escape. It may end up. If the air stays in the outlet space 30, it will block the purified water outlet 29 of the purified water section 4, and the discharge of the purified water from the purified water outlet 29 through the purified water section 4 is hindered. The purification flow rate was reduced.
JP 2004-230335 A

  The present invention has been made in view of the above points, and an object of the present invention is to provide a water purification cartridge capable of reliably protecting an internal water purification unit with a cartridge housing and ensuring a stable purification flow rate. It is an object to provide a water purifier provided.

In order to solve the above-mentioned problem, in the water purification cartridge according to claim 1, the purified water is mounted between the upper raw water reservoir 51 and the lower purified water reservoir 52 of the water purifier 50 and allows the raw water to pass by its own weight. The cartridge 1 is a cartridge housing 28 that houses the water purification unit 4 that purifies the raw water supplied in the cartridge housing 28 that forms the outer shell of the water purification cartridge 1, and the water purification outlet 29 provided at the lower end of the water purification unit 4 is connected to the cartridge housing 28. Rutotomoni is located above the purified water discharge port 9 is formed in a lower end portion, the outlet portion cavity 30 between the purified water discharge port 9 of the cartridge housing 28 and purified water outlet 29 of the water purifier unit 4 is provided, the outlet portion cavity An air escape hole 12 penetrating inward and outward is formed in a portion of the cartridge housing 28 that surrounds 30 . Further, the water purification unit 4 is configured such that the lower end portion of the cylindrical filtration container 6 filled with the filter body is fitted into a step part 8 extending one step lower than the bottom part of the cartridge housing 28, and the inner filtration container 6 and It is assumed that an adsorbent is filled with the outer cartridge housing 28. The outlet space 30 is formed between the bottom wall of the step portion 8 and the filtration container 6, and the purified water discharge port 9 is formed in the bottom wall of the step portion 8 .

  According to this, the water purification cartridge 1 is handled as a single unit in replacement work or the like, but an outlet space 30 is provided between the water purification outlet 9 of the cartridge housing 28 and the water purification outlet 29 of the water purification unit 4. Thus, the water purification unit 4 can be completely accommodated in the cartridge housing 28 to protect it. Then, when the water purification cartridge 1 provided with the outlet part void 30 is mounted between the raw water storage part 51 at the upper part of the water purifier 50 and the purified water storage part 52 at the lower part, air enters the outlet part void 30. Although there is a risk of stagnation, since the air escape hole 12 penetrating the inside and outside of the cartridge housing 28 that surrounds the outlet space 30 is formed, the air in the outlet space 30 is removed from the air escape hole 12. It is possible to escape to the outside of the water purification cartridge 1 and prevent the stagnation of air in the outlet space 30, and the purification flow rate of the water purification cartridge 1 can be secured stably.

  It is also preferable that the air escape hole 12 is formed at substantially the same height as the water purification outlet 29 in the portion of the cartridge housing 28 surrounding the outlet space 30. According to this, the air which is going to block the purified water outlet 29 in the outlet part space 30 can be surely escaped to the outside of the purified water cartridge 1, and the stable purification flow rate of the purified water cartridge 1 can be further ensured. .

  In this invention, while having a cartridge housing reliably protect a water purification part, it has the advantage that the purification | cleaning flow volume of a water purification cartridge can be ensured stably.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  The water purifier 50 of this example is a so-called pot-type water purifier 50 as shown in FIGS. 2 and 3. The raw water storage unit 51 supplies raw water such as tap water and temporarily stores it, and the raw water storage unit 51. The water purification cartridge 1 attached to the bottom of the water source, and the raw water storage portion 51 and the purified water storage portion 52 located below the water purification cartridge 1 constitute a main body, and the raw water stored in the raw water storage portion 51 is purified by its own weight. The raw water is purified in the purified water cartridge 1 when passing through 1 and flowing down into the purified water storage section 52.

  The water purifier 50 includes a bottomed cylindrical outer container 53 whose upper end is opened, and a bottomed cylindrical inner container which is inserted from the upper end opening of the outer container 53 and disposed in the outer container 53. 54. The inner container 54 is formed with a depth of about half or less than that of the outer container 53, and the inner container 54 is fitted to the upper half of the outer container 53 without a gap at a portion excluding the predetermined gap 55. The raw water storage part 51 is formed in the vessel 54, and the purified water storage part 52 is formed between the bottom wall 54 a of the inner container 54 and the bottom wall 53 a of the outer container 53. The said clearance gap 55 is formed so that it may extend upwards from the purified water storage part 52, and functions as a pouring path at the time of pouring purified water.

  An upper lid portion 56 is fitted and fixed to the upper end opening of the inner container 54. A water supply port 57 is opened at the center of the upper lid portion 56, and a flap 58 is provided to close the water supply port 57 from above. A shaft hole 59 is formed in the rear end portion of the flap 58, and a cylindrical shaft 60 installed behind the water supply port 57 in the upper lid portion 56 is rotatably fitted in the shaft hole 59. By doing so, the flap 58 can be freely opened and closed with respect to the water supply port 57.

  Here, the front-rear direction means that the side where the gap 55 forming the pouring path is located is the front. Accordingly, the spout 55a formed at the upper end of the gap 55 is located in front of the water supply port 57, and the shaft 60 is located on the opposite side of the water supply port 57 from the spout 55a. The pour spout 55a is provided with a pour lid 61 that can be freely opened and closed.

  The bottom surface of the raw water storage part 51 is formed so as to be gently downwardly inclined toward the lowermost part 51a, and the water purification cartridge 1 is provided with a mounting concave step part that is further recessed from the lowermost part 51a of the raw water storage part 51. It is fitted into 62 and fitted from above. The center of the bottom of the mounting concave step 62 is opened, and the raw water is stored through the mounting concave step 62 and the opening at the bottom thereof (that is, via the water purification cartridge 1 mounted in the mounting concave step 62). It is the structure where the part 51 and the purified water storage part 52 located under this communicate.

  The water purification cartridge 1 is configured by housing the water purification unit 4 in a cartridge housing 28 forming an outer shell. The water purification unit 4 further includes the upstream side adsorption water purification unit 2 that purifies the raw water by the adsorption action of the adsorbent (not shown) and the raw water that has passed through the adsorption water purification part 2 by the filtration action of the filter body (not shown). It consists of the downstream filtered water purification unit 3 to be purified. That is, the raw water in the raw water storage part 51 is introduced into the water purification part 4 from the raw water introduction port 17 provided in the upper part of the cartridge housing 28, and flows down the adsorption water purification part 2 and the filtered water purification part 3 constituting the water purification part 4 in order. The purified water is sequentially purified to produce purified water, and the purified water is discharged into the purified water storage section 52 from the purified water discharge port 9 provided at the lower end of the cartridge housing 28. In addition, the mineral component of the mineral agent (not shown) with which the inside is filled is added in the main stream of the raw | natural water which flows through the inside of the water purification part 4 above the water purification part 4 in the water purification cartridge 1 of this example. A mineral addition unit 5 is provided.

  Specifically, the water purification unit 4 formed in the lower half of the water purification cartridge 1 is formed by filling a filter body such as a hollow fiber membrane into a cylindrical filtration container 6 having upper and lower ends opened to form a filtration water purification unit 3. The lower end portion of the filtration container 6 is formed on the outer peripheral surface of the adsorption vessel 7 having a bottomed cylindrical shape with an open upper end and a step 8 that is one step lower than the center of the bottom 7a. It is fitted through an O-ring 11 provided on the inner wall, and further, an adsorbed water purification unit is filled by filling a granular adsorbent such as activated carbon between the peripheral wall of the inner filtration container 6 and the outer wall of the outer adsorption container 7. 2 is formed. The adsorption container 7 constitutes the cartridge housing 28 together with the upper cover 16 described later.

  The partition wall 13 formed of the peripheral wall of the filtration container 6 communicates with the central filtration water purification unit 3 arranged in parallel in the horizontal direction via the partition wall 13 and the outer periphery side adsorbing water purification unit 2 surrounding it. Are provided. The communication hole 14 is formed in a slit shape with the horizontal direction as the longitudinal direction, and is flush with the lower end of the adsorption water purification unit 2 in a state where the filtration container 6 is fitted in the stepped portion 8. Provided. The raw water flows into the adsorption water purification unit 2 from above and reaches the filtered water purification unit 3 through the communication hole 14 at the lowermost end of the adsorption water purification unit 2 so that the raw water does not shortcut the adsorption water purification unit 2. Yes.

  The lower end opening of the filtration container 6 faces the end face of the hollow fiber membrane constituting the filtered water purification unit 3, and serves as the water purification outlet 29 generated through the water purification unit 4. As described above, the lower end portion of the filtration container 6 is fitted to the step portion 8, but a rib-like locking projection 10 is protruded inwardly at the lower end of the peripheral wall of the step portion 8, An outlet space 30 is formed between the lower end of the filtration container 6 and the bottom wall of the step portion 8 by applying the lower end surface of the filtration container 6 to the upper end surface of the locking projection 10. Further, a purified water discharge port 9 having an opening area smaller than that of the purified water outlet 29 is opened at the center of the bottom wall of the step portion 8. The purified water outlet 29 is positioned so as to face the purified water discharge port 9 through the outlet space 30.

  The mineral addition part 5 formed in the upper half part of the water purification cartridge 1 has a bottomed cylindrical shape with an open upper end, and a mineral container 15 provided with a concave step part 15a recessed upward at the center of the outer bottom surface. The upper end portion of the filtration container 6 is fitted and locked in the concave step portion 15a, and a granular mineral agent such as a calcium agent is placed in the mineral container 15 placed on the filtration container 6 by the fitting and locking. Further, it is formed by covering the mineral container 15 with a cap-shaped upper cover 16 having an open lower end and engaging the lower end opening edge of the upper cover 16 with the upper end opening edge of the adsorption container 7 from above the mineral container 15. The Here, the upper end opening edge of the mineral container 15 is in close contact with the inner peripheral surface of the upper cover 16, and the space surrounded by the mineral container 15 and the upper cover 16 is the mineral addition unit 5.

  A plurality of small-diameter raw water inlets 17 are opened over the entire circumference of the peripheral wall of the upper cover 16 and located on the side of the mineral container 15, and the purified water cartridge 1 is passed through these raw water inlets 17. It is a structure where raw water is introduced. A large number of slit-like mineral elution holes 20 are formed in the outer peripheral wall of the mineral container 15. The mineral elution hole 20 forms a flow path that connects the mineral addition unit 5 that is a space in the mineral container 15 and the adsorption water purification unit 2 that is a space in the adsorption container 7.

  In the figure, reference numeral 18 denotes a discharge port for discharging bubbles generated in the filtered water purification unit 3 to the outside of the water purification cartridge 1. Reference numeral 19 in the figure denotes a discharge port for discharging bubbles generated in the mineral addition unit 5 and the adsorption water purification unit 2 to the outside of the water purification cartridge 1.

  When the water purification cartridge 1 having the above-described configuration is attached to the water purifier 50, the lower half of the water purification card ridge 1 in which the water purification part 4 is formed is recessed from the raw water storage part 51 in the mounting concave step part 62. The upper half part forming the mineral addition part 5 of the water purification cartridge 1 is positioned above the lowermost part 51a of the raw water storage part 51, but at this time, through the opening at the bottom center of the mounting concave step part 62, The purified water discharge port 9 of the step portion 8 of the adsorption container 7 and the lower end portion of the filtration container 6 located in the step portion 8 protrude toward the lower purified water storage portion 52 side.

  An elastically deformable convex portion 26 formed in a convex shape toward the outer side is integrally formed on the peripheral wall of the adsorption container 7 over the entire circumference, and the convex portion 26 is attached over the entire circumference. By making elastic contact with the inner peripheral surface of the concave step portion 62, the peripheral wall of the adsorption container 7 and the mounting concave step portion 62 are brought into close contact with each other. Further, an O-ring 27 is fitted into the groove on the outer peripheral surface of the step portion 8 of the adsorption container 7, and the step portion 8 and the mounting concave step portion 62 are brought into close contact with each other through the O-ring 27.

  And when it is going to obtain purified water using the water purifier 50 of this example provided with the water purification cartridge 1 which consists of the said structure, it is based on the following procedures. That is, first, the flap 58 of the upper lid part 56 is rotated upward to open the water supply port 57, and raw water such as tap water is supplied into the raw water storage unit 51 through the water supply port 57. The supplied raw water is temporarily stored in the raw water storage section 51 and is introduced into the water purification cartridge 1 through a large number of water inlets 17 of the upper cover 16, and the adsorption water purification section 2 and the filtered water purification section 3 and minerals communicating therewith. Raw water is filled up to the addition part 5.

  Here, the main flow path in which the raw water flows down to the purified water storage section 52 through the purified water cartridge 1 by its own weight is temporarily accumulated in the adsorption purified water section 2 after flowing down from the water inlet 17, due to the adsorption action of the adsorbent. After purification, the turbidity component is further filtered by the filtering action of the filter body introduced into the filtered water purification unit 3 through the communication hole 14 communicating with the lower end of the adsorption water purification unit 2 and filled in the filtered water purification unit 3. Then, after being purified, the flow path sequentially flows into the purified water storage portion 52 below through the purified water discharge port 9 opened at the lowermost end of the purified water cartridge 1. In the process of passing through the main flow path, water purification by adsorption and filtration is performed.

  Then, from the mineral addition unit 5 to the main channel, high mineral water obtained by eluting the mineral component of the mineral agent into the raw water filled in the mineral addition unit 5 is sequentially supplied through the mineral elution hole 20. It will be supplied. That is, the raw water passing through the water purification cartridge 1 is subjected to water purification by an adsorption action and a filtration action, and a mineral component is added thereto.

  By the way, although the water purification cartridge 1 may be handled as a single unit for replacement work or the like, an outlet space 30 is provided between the water purification outlet 9 of the cartridge housing 28 and the water purification outlet 29 of the water purification unit 4. Thus, the water purification unit 4 is completely accommodated in the cartridge housing 28 and can be protected.

  The purified water cartridge 1 having such an outlet space 30 is attached between the upper raw water reservoir 51 and the lower purified water reservoir 52 of the water purifier 50 to generate purified water. When the stored purified water is in a state where the water level is raised to a position above the lower end of the water purification cartridge 1, the air contained in the purified water and the air in the purified water storage section 52 before the purified water is stored are purified water. The cartridge 1 may accumulate so as to remain in the exit space 30 of the cartridge 1. However, the water purification cartridge 1 of the present example is devised to allow air staying in the outlet space 30 to escape outside the water purification cartridge 1.

  That is, as shown in FIG. 1, an air escape hole 12 penetrating inward and outward is formed in a portion of the cartridge housing 28 (step 8 of the adsorption container 7) surrounding the outlet space 30. Specifically, the air escape hole 12 of this example is configured by a vertical slit 12a having a vertical direction as a longitudinal direction so as to reach the peripheral wall from the bottom wall of the step portion 8 facing the outlet portion space 30. A plurality of strips are provided at intervals in the circumferential direction. That is, the air escape hole 12 allows the air staying in the outlet space 30 to escape to the purified water storage section 52 side outside the purified water cartridge 1. Therefore, stagnation of the air in the outlet space 30 is prevented, and the stable purification flow rate of the water purification cartridge 1 is ensured.

  FIG. 4 shows another example of the water purification cartridge 1. This water purification cartridge 1 is also attached to the water purifier 50 described above, and the same parts as those in the previous example are denoted by the same reference numerals and the description thereof is omitted, and different parts will be described. In addition, this water purification cartridge 1 differs in the shape of the air escape hole 12 compared with the previous water purification cartridge. That is, the air escape hole 12 of this example is configured by a lateral slit 12 b having a horizontal direction as a longitudinal direction on the peripheral wall of the step portion 8, and a plurality of strips are provided at intervals in the circumferential direction of the step portion 8. The air vent hole 12 is formed at the same height as the lower end of the filtration container 6 (that is, the purified water outlet 29). According to this air escape hole 12, the air which is going to block the purified water outlet 29 at the outlet space 30 can be surely released to the purified water storage section 52 side which is outside the purified water cartridge 1, and the further purified water cartridge 1. It was possible to secure a stable purification flow rate.

It is an example of embodiment of this invention, and is sectional drawing of the principal part in the water purification cartridge with which the water purifier was mounted | worn. It is a longitudinal cross-sectional view of a water purifier same as the above. It is a disassembled perspective view of a water purifier same as the above. It is another example of embodiment, and is sectional drawing of the principal part in the water purification cartridge with which the water purifier was equipped. It is a longitudinal cross-sectional view of the water purifier of the example of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water purification cartridge 4 Water purification part 9 Water purification discharge port 12 Air escape hole 28 Cartridge housing 29 Water purification outlet 30 Outlet part void 50 Water purifier 51 Raw water storage part 52 Water purification storage part

Claims (3)

It is a water purification cartridge that is installed between the raw water storage part at the upper part of the water purifier and the purified water storage part at the lower part and allows the raw water to pass by its own weight, and purifies the raw water supplied in the cartridge housing that forms the outer shell of the water purification cartridge. the water purification unit for accommodating a water purification outlet provided at the lower end of the water purification unit is located above the purified water discharge ports bored in the lower portion of the cartridge housing Rutotomoni, purified water outlet of the purified water portion purified water outlet of the cartridge housing An air outlet hole is formed in the cartridge housing that surrounds the outlet space, and the water purifier is a cylindrical filter filled with a filter body. The lower end of the container is fitted into a step that extends one step lower than the bottom of the cartridge housing, and an adsorbent is filled between the inner filtration container and the outer cartridge housing. Water purification cartridge and things, to form the outlet cavity between the bottom wall and the filtering vessel of the step portion, and forming the purified water discharge port in the bottom wall of the step portion.   2. The water purification cartridge according to claim 1, wherein the air escape hole is formed at substantially the same height as the water purification outlet at a portion of the cartridge housing surrounding the outlet space.   A water purifier comprising the water purification cartridge according to claim 1.

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