JP5720776B2 - Water treatment device and water purifier equipped with the water treatment device - Google Patents

Description

  The present invention relates to a water treatment device that disinfects and sterilizes water to be treated, and a water purifier including the water treatment device. This application claims priority on January 31, 2012 based on Japanese Patent Application No. 2012-018458 for which it applied to Japan, and uses the content here.

As water purifiers for treating tap water, those equipped with filter media such as membranes and adsorbents are widely used. In general, a filter medium needs to be replaced with a new one when a certain amount of water is treated to reduce the processing capacity. For this reason, there are some such water purifiers that measure the amount of treated water and inform the user of the time to replace the filter medium when the amount of treated water reaches a predetermined value.
For example, Patent Document 1 describes a technique for accurately measuring the amount of treated water. Further, Patent Documents 2 and 3 describe water purifiers in which treated water cannot be introduced into the water purifier after the amount of treated water reaches a predetermined value and the filter medium replacement time comes. According to the water purifiers described in Patent Documents 2 and 3, inconveniences such as drinking water with insufficient processing can be avoided by continuing to use the filter medium having a reduced processing capacity.

JP 2003-202248 A Japanese National Patent Publication No. 10-509378 JP-T-2005-503916

The present invention can not only avoid inconvenience such as drinking water that is insufficiently treated with the filter medium by continuing to use the filter medium having a reduced processing capacity, but also can surely perform the disinfection and sterilization process of water. The purpose is to provide a water purifier.
In addition, the present invention can treat water with a disinfectant disinfectant, and when the remaining amount of disinfectant disinfectant is reduced to a predetermined value or zero, after that, water cannot be taken out and water that has not been disinfected and disinfected is consumed. An object of the present invention is to provide a water treatment device that can avoid the inconvenience.

  The water treatment device of the present invention includes a flow path and a treatment material disposed in the flow path and having a disinfectant sterilizer made of a water-soluble solid, and supplies water to be treated from the upstream side of the treatment material. A water treatment device for obtaining the disinfecting sterilizing water by eluting the disinfecting disinfectant in the water to be treated, and a valve means for closing the flow path when the remaining amount of the treatment material becomes zero due to the elution. It is characterized by providing.

  According to such a configuration, when water can be treated with a disinfectant disinfectant and the remaining amount of disinfectant disinfectant is reduced to zero, water can not be taken out thereafter, and water that has not been disinfected can be used. A water treatment device that can avoid inconveniences can be provided.

  A water treatment device according to another aspect of the present invention includes a flow path and a treatment material disposed in the flow path and having a disinfectant and disinfectant made of a water-soluble solid, and is treated water from the upstream side of the treatment material. In which the disinfecting disinfectant is eluted in the water to be treated to obtain disinfecting disinfecting water, and when the amount of the treatment material is reduced to a predetermined value before becoming zero due to the elution, Valve means for closing the flow path is provided.

  According to such a configuration, when the water can be treated with the disinfecting disinfectant and the remaining amount of the disinfecting disinfectant is reduced to a predetermined value, the water is not taken out thereafter, and water that has not been disinfecting disinfected is consumed. It is possible to provide a water treatment device that can avoid the inconvenience.

  In the water treatment device according to another aspect of the present invention, when the remaining amount of the treatment material is reduced to the predetermined value and the valve means closes the flow path, there is a space for storing the remaining portion of the treatment material. It is formed.

  According to such a configuration, the flow path can be closed when the remaining amount before the disinfectant is completely melted.

  In the water treatment device according to another aspect of the present invention, the valve means includes a valve body that closes the flow path, and a cylindrical body is formed around the treatment material in the flow path, and the remaining amount of the treatment material A protrusion-like stopper is provided to stop the movement of the valve body when the pressure decreases to the predetermined value, and the space is formed inside the stopper.

  According to such a configuration, the flow path can be closed when the remaining amount before the disinfectant is completely melted.

  The water treatment device according to another aspect of the present invention is characterized in that the height of the stopper is 3 to 5 mm.

  According to such a configuration, the remaining amount of the disinfectant disinfectant can be reduced as much as possible to eliminate waste, and the flow path can be completely blocked.

  In the water treatment device according to another aspect of the present invention, the valve means includes a valve body that closes the flow path, and a recessed portion is formed on a contact surface of the valve body with the treatment material. The space is formed.

  According to such a configuration, the flow path can be closed when the remaining amount before the disinfectant is completely melted.

  The water treatment device according to another aspect of the present invention is characterized in that the depth of the recess is 3 to 5 mm.

  According to such a configuration, the remaining amount of the disinfectant disinfectant can be reduced as much as possible to eliminate waste, and the flow path can be completely blocked.

  The water treatment device according to another aspect of the present invention is characterized in that the valve means includes at least one elastic body that urges and moves the valve body so that the valve body closes the flow path.

  According to such a configuration, as the remaining amount of the disinfectant disinfectant decreases, the valve body can be urged and moved to close the flow path.

  The water treatment device according to another aspect of the present invention is characterized in that the valve means includes a plurality of the elastic bodies.

  According to such a configuration, the valve body can be urged more uniformly. Moreover, even if a malfunction occurs in a certain elastic body among the plurality of elastic bodies, the flow path can be reliably closed by the remaining elastic bodies.

  The water purifier of the present invention includes the water treatment device of the present invention and a filter medium for filtering the disinfecting sterilized water.

  According to such a configuration, it is possible not only to avoid inconveniences such as drinking water that is insufficiently processed by the filter medium by continuing to use the filter medium having a reduced processing capacity, but also to ensure the disinfection and sterilization of water. The water purifier which can be performed can be provided.

According to the present invention, it is possible not only to avoid inconveniences such as drinking water that is insufficiently processed by the filter medium by continuing to use the filter medium having a reduced processing capacity, but also to surely disinfect the water. Can provide a water purifier.
Further, according to the present invention, when water can be treated with a disinfectant disinfectant and the remaining amount of disinfectant disinfectant is reduced to a predetermined value or zero, water cannot be taken out thereafter and water that has not been disinfected and disinfected is consumed. Thus, it is possible to provide a water treatment device that can avoid inconveniences such as in advance.

It is a longitudinal cross-sectional view which shows an example of the water treatment device of this invention, (a) The figure which shows the state in which the flow path is open and the disinfection sterilization process is performed, (b) The flow path is obstruct | occluded by the valve means. FIG. It is a longitudinal cross-sectional view which shows another example of the water treatment device of this invention, (a) The figure which shows the state in which the flow path is open and the disinfection and sterilization process is performed, (b) A flow path is by a valve means. It is a figure which shows the state obstruct | occluded. It is a longitudinal cross-sectional view which shows another example of the water treatment device of this invention, (a) The figure which shows the state in which the flow path is open and the disinfection and sterilization process is performed, (b) A flow path is by a valve means. It is a figure which shows the state obstruct | occluded. It is a longitudinal cross-sectional view which shows another example of the water treatment device of this invention, (a) The figure which shows the state in which the flow path is open and the disinfection and sterilization process is performed, (b) A flow path is by a valve means. It is a figure which shows the state obstruct | occluded. It is a longitudinal cross-sectional view which shows another example of the water treatment device of this invention, (a) The figure which shows the state in which the flow path is open and the disinfection and sterilization process is performed, (b) A flow path is by a valve means. It is a figure which shows the state obstruct | occluded.

Hereinafter, the present invention will be described in detail.
[Water treatment equipment]
Fig.1 (a), (b) is a figure which shows an example of the water treatment device of this invention.
The water treatment device 10 </ b> A includes a flow path 11 and a disinfectant / disinfectant (treatment material) 16 made of a water-soluble solid disposed in the flow path 11, and a pump (not shown) from the upstream side of the disinfectant disinfectant 16. The water to be treated is supplied by means, etc., the disinfecting sterilizing agent 16 is eluted in the circulating water to be treated, and the sterilizing water having reduced bacteria and viruses is obtained downstream.

  Here, the flow path 11 includes an introduction flow path 12 for introducing treated water into the water treatment device 10A, a treatment flow path 13 for disinfecting the introduced treated water, and water treatment of the obtained disinfected sterilized water. It is comprised from the discharge flow path 14 for taking out out of the container 10A.

In this example, the processing flow path 13 is formed of a vertical cylindrical container (cylindrical container) whose both ends in the height direction are closed, and is formed in a column shape at the center of one end (the lower end in the figure) 13a. A disinfectant disinfectant 16 is arranged. The introduction flow path 12 and the discharge flow path 14 are tubular, and the downstream end 12a of the introduction flow path 12 and the upstream end 14a of the discharge flow path 14 are formed on the peripheral surface of the processing flow path 13 on the one end 13a side in the height direction. Are formed so as to open.
The water to be treated introduced from the introduction channel 12 to the treatment channel 13 passes around the disinfectant disinfectant 16 (the gap between the inner peripheral wall of the process channel 13 and the disinfectant disinfectant 16). Disinfecting and disinfecting water is brought into contact with the agent 16 and dissolved by the disinfecting disinfecting agent 16 and then taken out from the discharge channel 14 to the outside of the water treatment device 10A.

  The one end 13a or the other end 13b in the height direction of the cylindrical container constituting the processing channel 13 may be simply referred to as one end 13a or the other end 13b of the processing channel 13. Moreover, in this example, the flow direction in the flow path 11 and the height direction of the cylindrical container which comprises the process flow path 13 are orthogonal.

  In the water treatment device 10A of this example, the disinfectant disinfectant 16 is gradually eluted with the treatment of the water to be treated, and finally the disinfectant disinfectant 16 disappears, and the remaining amount (height) is zero. When it becomes, it has the valve means 20 which obstruct | occludes the flow path 11.

  The valve means 20 includes a valve body 21 that closes the flow path 11 and a coil spring (elastic body) 22 that urges and moves the valve body 21 so that the valve body 21 closes the flow path 11. In this example, as shown in FIG. 1A, the valve element 21 is located on the other end 13 b side of the processing flow path 13 with respect to the disinfecting sterilizing agent 16 in the processing flow path 13, and is in contact with the disinfecting sterilizing agent 16. Further, the coil spring 22 in a contracted state located closer to the other end 13b than the disinfectant disinfectant 16 is urged toward the disinfectant disinfectant 16 side (one end 13a side of the processing flow path 13). Therefore, when the remaining amount of the disinfectant disinfectant 16 decreases with the use of the water treatment device 10A, the coil spring 22 extends to urge the valve body 21. When the remaining amount of the disinfectant disinfectant 16 finally becomes zero, as shown in FIG. 1B, the valve element 21 moves to the one end 13a side of the processing channel, The downstream end 12a of the introduction flow path 12 formed on the one end 13a side and the upstream end 14a of the discharge flow path 14 are closed by the peripheral surface.

  In this specification, the coil spring 22 is illustrated as an elastic body, but the elastic body is not limited to this. Further, it is preferable that the valve means 20 has at least one elastic body because the valve body 21 can be urged and moved as the remaining amount of the disinfectant sterilizer decreases to block the flow path 11. Further, when the valve means has a plurality of elastic bodies and these elastic bodies are arranged in parallel to each other, the valve body can be biased uniformly, and a problem occurs in a certain elastic body among the plurality of elastic bodies. Is more preferable because the flow path can be reliably closed by the remaining elastic body. It is further preferable to have four elastic bodies because the valve body can be biased more uniformly.

  In this way, in the water treatment device 10A of FIG. 1, when the disinfectant / disinfectant 16 is eluted with the treatment of the water to be treated and finally the remaining amount becomes zero, the flow path 11 (in this example, the introduction flow path) 12 and the upstream end 14a of the discharge channel 14 are closed, and water that has not been subjected to disinfection and sterilization cannot be taken out from the discharge channel 14. Therefore, inconveniences such as drinking water that has not been disinfected and sterilized can be avoided.

As the disinfectant disinfectant 16 made of a water-soluble solid, any disinfectant or disinfectant can be used as long as it dissolves in the water to be treated. For example, a chlorine compound (sodium hypochlorite, calcium hypochlorite, Chlorinated isocyanuric acid and the like), iodine-based disinfectants (such as popidone iodine), and bromine-based disinfectants whose main component is BCDMH (1-Bromo-3-chloro-5,5-dimethylhydantoin).
Disinfection means that harmful microorganisms or target microorganisms are reduced to below the infectious titer, and sterilization means that microorganisms are killed and inactivated to a state where they cannot be revived.

  As described above, as the remaining amount of the disinfectant disinfectant 16 decreases, the coil spring 22 of the valve means 20 extends to urge the valve body 21, and the flow path 11 is closed when the remaining amount (height) becomes zero. As a water treatment device of a form, water treatment device 10B of a form shown in Drawing 2 can also be illustrated, for example.

The water treatment device 10B of FIGS. 2 (a) and 2 (b) includes a cylindrical container (cylindrical container) 15 containing the disinfectant disinfectant 16 and the valve means 20, and one end in the length direction (the lower end in the figure). ) And a substantially plate-shaped (disc-shaped) lid member 17.
This water treatment device 10B is the same as the water treatment device 10A of FIG. 1 in that the treatment flow path 13 is constituted by a cylindrical container. On the other hand, the introduction flow path 12 for introducing the water to be treated into the treatment flow path 13 and the discharge flow path 14 for taking out the obtained sterilized sterilized water are formed in the lid member 17 instead of the peripheral surface of the cylindrical container. This is different from the water treatment device 10A of FIG. 1 in that the disinfecting disinfectant 16 is disposed on the lid member 17 and the like.

  In this example, the introduction flow path 12 has upstream ends 12b at two locations on the peripheral surface of the lid member 17, and then merges, and 1 on the inner surface of the lid member 17 (the surface facing the inside of the cylindrical container 15). It has a downstream end 12a at a location. The discharge channel 14 has an upstream end 14a that is open on the inner surface of the lid member 17, and the lid member 17 is arranged in the thickness direction so as to have a downstream end 14b on the outer surface (the surface facing the outside of the cylindrical container 15). Four are formed penetrating in the vertical direction in the figure. In FIG. 2, only two discharge passages 14 are shown.

In this example, a plurality of protruding receiving portions 14 c are formed on the inner surface of the lid member 17, and the disinfectant disinfectant 16 is disposed on the receiving portions 14 c. Thus, the disinfectant disinfectant 16 disposed on the lid member 17 is configured not to block the downstream end 12a of the introduction flow path 12 and the upstream end 14a of the discharge flow path 14.
Further, in the valve body 21, a closing protrusion 21 b that fits with the downstream end 12 a of the introduction flow path 12 is formed on a surface (a lower surface in the drawing, sometimes referred to as a contact surface) 21 a that is in contact with the disinfectant disinfectant 16. Has been.

  In the water treatment device 10B of FIG. 2, the water to be treated introduced from the introduction flow path 12 into the treatment flow path 13 is in contact with the lower surface and the peripheral surface of the disinfectant disinfectant 16 within the treatment flow path 13 and is disinfected. The sterilizing agent 16 makes the sterilized sterilized water, which is taken out from the discharge channel 14. As in the case of the water treatment device 10A of FIG. 1, when the remaining amount (height) of the disinfectant disinfectant 16 becomes zero with use, as shown in FIG. The valve body 21 is moved by the action and comes into contact with the inner surface of the lid member 17. Then, the closing protrusion 21 b formed on the contact surface 21 a of the valve body 21 is fitted to the downstream end 12 a of the introduction flow path 12 that is open on the inner surface of the lid member 17, thereby closing the introduction flow path 12.

  Thus, also by the water treatment device 10B of FIG. 2, the disinfectant disinfectant 16 is eluted along with the treatment of the water to be treated, and when the remaining amount (height) finally becomes zero, the flow path 11 is blocked, It is possible to avoid inconveniences such as drinking water that has not been disinfected.

  The water treatment devices 10A and 10B illustrated in FIGS. 1 and 2 illustrated above are in a state where the coil spring 22 included in the valve means 20 is expanded from the contracted state due to the elution of the disinfecting disinfectant 16, and thereby the valve body. 21 is moved to block the flow path 11, but, for example, as shown in FIGS. 3 to 5, the coil spring 22 of the valve means 20 is expanded from the expanded state as the disinfecting disinfectant 16 is eluted. Then, the valve body 21 may be moved to close the flow path 11. This form is more space-saving than the form in which the coil spring 22 is extended from the contracted state.

  In the water treatment device 10C of FIGS. 3 (a) and 3 (b), a cylindrical shape (lower end in the figure) 13a of a treatment flow path 13 composed of a vertical cylindrical vessel (cylindrical vessel) is formed in the center ( Cylindrical disinfection disinfectant 16 is accommodated. And the coil spring 22 which comprises the valve means 20 is arrange | positioned in the hollow part of this cylindrical disinfection disinfectant 16 along the height direction in the state extended. One end (lower end in the drawing) of the coil spring 22 is fixed to one end (lower end in the drawing) 13a side of the processing flow path 13 and the other end (upper end in the drawing) is the other end (upper end in the drawing). (Upper end in the figure.) On the 13b side, it is stretched by being fixed to the valve body 21 provided in contact with the disinfectant disinfectant 16. Further, the fixing portion of the coil spring 22 at the one end 13a of the processing flow path 13 is a recessed recess 13c. When the coil spring 22 contracts and closes the flow path 11, the coil spring 22 is accommodated in the recess 13c. The coil spring 22 is configured not to block the blockage of the flow path 11 by the valve body 21.

In this water treatment device 10C, the water to be treated introduced from the introduction flow path 12 to the treatment flow path 13 is around the disinfectant disinfectant 16 (inner peripheral wall of the treatment flow path 13 as in the example of FIG. And the disinfectant disinfectant 16), the disinfectant disinfectant water is taken out from the discharge channel 14. In this example, the flow direction in the flow channel 11 and the height direction of the cylindrical container constituting the processing flow channel 13 are orthogonal to each other.
Thereafter, when the remaining amount of the disinfectant disinfectant 16 decreases with the use of the water treatment device 10C, the coil spring 22 is gradually contracted to pull the valve element 21 toward the one end 13a of the process channel 13, and finally the disinfectant disinfectant. When the remaining amount (height) of 16 becomes zero and disappears, the valve body 21 comes to be in contact with the one end 13a of the processing channel 13 as shown in FIG. Thereby, the valve body 21 closes the downstream end 12a of the introduction flow path 12 and the upstream end 14a of the discharge flow path 14 formed on the peripheral surface on the one end 13a side of the processing flow path 13.

  In the water treatment device 10D of FIG. 4, the disinfectant disinfectant 16 has a columnar shape (columnar shape), and a plurality (two in this example) of coil springs 22 are provided on the outer peripheral side of the disinfectant disinfectant 16. It differs from the form of FIG. 3 by the point arrange | positioned in the extended state. Also in this example, as in the embodiment of FIG. 3, the coil spring 22 has one end (lower end in the figure) fixed to one end (lower end in the figure) 13a of the processing flow path 13 and the other end (upper end in the figure). Is fixed to the valve body 21 provided in contact with the disinfectant disinfectant 16 on the other end (upper end in the figure) 13b side in the processing flow path 13 and is in an extended state.

  Also in this water treatment device 10D, as in the case of the example of FIG. 3, the water to be treated introduced from the introduction flow path 12 to the treatment flow path 13 is around the disinfectant disinfectant 16 (the inner peripheral wall of the treatment flow path 13). And the disinfectant sterilizing agent 16) to pass through the disinfecting sterilizing water and then taken out from the discharge channel 14. When the remaining amount (height) of the disinfectant disinfectant 16 becomes zero and disappears, the two coil springs 22 are contracted and the valve element 21 is connected to the one end 13a side of the processing flow path 13 as in the case of FIG. The downstream end 12a of the introduction channel 12 and the upstream end 14a of the discharge channel 14 are closed.

  Here, since the water treatment device 10D of FIG. 4 includes a plurality of coil springs 22, the flow path can be closed more reliably. For example, when the water to be treated introduced into the water treatment device 10D contains a large amount of solid contaminants, it adheres to or accumulates on the coil spring 22 or the treatment flow path 13 as a scale, and the coil spring 22 may be prevented. In addition, a biofilm may be formed, and the coil spring 22 may not easily shrink. In such a case, if a plurality of coil springs 22 are provided, it can be expected that the remaining coil springs 22 are contracted and the flow path 11 is reliably blocked even if some of them are difficult to contract.

  Each of the water treatment devices 10A to 10D of FIGS. 1 to 4 described above closes the flow path 11 when the disinfectant disinfectant 16 disappears and the remaining amount (height) becomes zero. However, for example, by adopting the configuration shown in FIG. 5, the flow path 11 can be closed when the remaining amount (height) of the disinfectant disinfectant reaches a predetermined value before becoming zero. it can.

  As shown in FIG. 5B, the water treatment device 10E shown in FIGS. 5A and 5B has the contact surface 21a of the valve body 21 and the treatment flow path in a state where the flow path 11 is closed by the valve body 21. 13 is different from the water treatment device 10D of FIG. 4 in that a space (space S) is formed by the one end 13a. By forming such a space S, the disinfectant disinfectant 16 decreases, and when the height of the disinfectant disinfectant and the height H of the space S coincide with each other (the predetermined value before the remaining disinfectant disinfectant becomes zero) At the time point), the flow path 11 is closed. Therefore, the flow path 11 can be closed before the disinfectant disinfectant 16 is completely melted.

That is, in the example of FIG. 5, a protruding stopper 13 d that is formed of a cylindrical body such as a cylinder and surrounds the disinfectant disinfectant 16 is erected around the disinfectant disinfectant 16 at one end 13 a of the processing flow path 13. . The stopper 13d acts to stop the movement of the valve body 21 so that the space S is formed in a state where the remaining amount of the disinfectant disinfectant 16 is reduced to a predetermined value and the valve body 21 closes the flow path. In this example, a recess 21 b is formed on the contact surface 21 a of the valve body 21. Therefore, as shown in FIG. 5B, in the state in which the valve body 21 closes the flow path 11, a space S is formed between the recessed portion 21b and the stopper 13d (inside the cylindrical body). The undissolved part (remainder) of the disinfectant disinfectant 16 is accommodated.
In order to form the space S, at least one of the stopper 13d and the recess 21b may be provided. Further, the height H of the space S can be arbitrarily set by adjusting the depth of the recess 21b and the height of the stopper 13d. Thereby, it can comprise so that the flow path 11 can be obstruct | occluded when it becomes the arbitrary residual amount (height) before the disinfection disinfectant 16 completely melts.

When the stopper 13d is erected in this way, a space S is formed by the stopper 13d in a state where the valve body 21 closes the flow path 11, and the disinfecting disinfectant 16 is left in the space S (the remaining portion). ) Is housed. With such a configuration, the flow path can be completely blocked before the disinfectant disinfectant is completely melted. In addition, by adjusting the height of the stopper 13d, the flow path can be completely closed at any time before the disinfectant is completely melted. The height of the stopper 13d (the height of the cylinder) is It is preferable that it is 3-5 mm. If the height of the stopper 13d is such a height, the remaining amount of the disinfectant disinfectant can be reduced as much as possible to eliminate waste, and the flow path can be completely blocked.
Further, when the depression 21 b is formed on the contact surface 21 a of the valve body 21, a space S is formed in the depression 21 b in a state where the valve body 21 closes the flow path 11. The undissolved part (remainder) of the disinfectant 16 is accommodated. With such a configuration, the flow path can be closed before the disinfectant disinfectant is completely melted. Further, by adjusting the depth of the recess 21b, the flow path can be completely closed at any time before the disinfectant is completely melted, and the depth of the recess 21b is 3 to 5 mm. It is preferable. If the depth of the hollow portion 21b is within such a range, the remaining amount of the disinfectant disinfectant can be reduced as much as possible to eliminate waste, and the flow path can be completely blocked.

  Further, according to the water treatment device 10E in the form of FIG. 5, for example, a granular disinfectant disinfectant stored in a mesh bag is used as a treatment material, and this is disposed in a treatment flow path. Cases where a disinfectant and disinfectant and an insoluble component (for example, binder component) are used, and insoluble residue (bag, binder component), that is, a residue is generated even if the disinfectant and disinfectant are all eluted. However, since these residues are stored in the space S when the flow path 11 is closed, the flow path can be reliably closed.

As described in the embodiment, the water treatment device of the present invention has a flow path when the remaining amount of treatment material becomes zero due to elution or when the treatment material is reduced to a predetermined value before becoming zero. Is provided with valve means for closing the valve. In each of the above examples, the water treatment devices 10A to 10D in FIGS. 1 to 4 are configured to close the flow path when the remaining amount (height) of the disinfectant disinfectant 16 as the treatment material becomes zero. The water treatment device 10E shown in FIG. 5 is configured to close the flow path when the remaining amount of the treatment material including the disinfectant disinfectant 16 or the height of the residue reaches a predetermined value. As described above, the predetermined value can be arbitrarily set by adjusting the height of the space S.
Further, in the examples of FIGS. 1 and 3 to 5, the valve body 21 closes both the introduction flow path 12 and the discharge flow path 14, and in the example of FIG. 2, the form of closing the introduction flow path 12 is illustrated. However, as long as it becomes impossible to take out water, it is sufficient that at least one of the flow paths 11 is closed.

[Water purifier]
The water purifier of the present invention includes the above-mentioned water treatment device and a filter medium that is provided on the downstream side of the water treatment device and filters the sterilized sterilized water obtained by the water treatment device, so that purified water is obtained. It is a thing. According to such a water purifier, when the remaining amount of the treatment material is reduced to a predetermined value or zero in the water treatment device and the flow path is closed, the water purification device can no longer obtain purified water. Therefore, by adjusting the amount of disinfectant disinfectant used to match the timing when the flow path is closed and the replacement timing of the filter media, the filter media with a reduced processing capacity can be used continuously, and the processing with the filter media is insufficient. Inconvenience such as drinking fresh water can be avoided in advance. That is, in such a water purifier, the water treatment device not only disinfects the water to be treated, but also functions as an indicator indicating the replacement time of the filter medium of the water purifier.

As the filter medium, one containing at least one of a membrane such as a hollow fiber membrane and an adsorbent such as activated carbon can be used. As the filter medium, for example, by using at least an adsorbent that adsorbs the disinfectant disinfectant provided in the water treatment device, the disinfectant disinfectant can be adsorbed and removed from the disinfectant disinfectant water obtained in the water treatment device. It becomes possible to obtain purified water from which the disinfectant disinfectant is removed.
Further, by using the hollow fiber membrane, solid contaminants remaining in the disinfecting sterilized water can be removed.

  The water treatment device and the water purifier described above are preferably used when, for example, river water or the like needs to be used for drinking in a disaster or the like. It is also suitable for use in some countries and regions where it is difficult to ensure safe drinking water.

10A to 10E Water treatment device 11 Flow path 16 Disinfectant disinfectant 20 Valve means

Claims (10)

A flow path and a treatment material that is disposed in the flow path and has a disinfectant disinfectant made of a water-soluble solid, and supplies the water to be treated from the upstream side of the treatment material to disinfect the water to be treated A water treatment device for eluting the agent and obtaining disinfecting sterilized water,
When the remaining amount of the processing material by the dissolution is reduced to a predetermined value before the zero, e Bei valve means having a valve body for closing said passage,
The remaining amount of the processing material is reduced to the predetermined value, and a space is formed between the flow path and the valve body in which the remainder of the processing material is stored when the valve body closes the flow path. And
Around the processing material in the flow path, a protruding stopper is provided to stop the movement of the valve body when the remaining amount of the processing material is reduced to the predetermined value.
A water treatment device in which the space is formed inside the stopper . The water treatment device according to claim 1 , wherein the height of the stopper is 3 to 5 mm. The water treatment device according to claim 1 , wherein a recess is formed in a contact surface of the valve body with the treatment material, and the space is formed by the recess. The water treatment device according to claim 3, wherein the depth of the recess is 3 to 5 mm. A flow path and a treatment material that is disposed in the flow path and has a disinfectant disinfectant made of a water-soluble solid, and supplies the water to be treated from the upstream side of the treatment material to disinfect the water to be treated A water treatment device for eluting the agent and obtaining disinfecting sterilized water,
When the remaining amount of the processing material by the dissolution is reduced to a predetermined value before the zero, e Bei valve means having a valve body for closing said passage,
The remaining amount of the processing material is reduced to the predetermined value, and a space is formed between the flow path and the valve body in which the remainder of the processing material is stored when the valve body closes the flow path. And
A water treatment device , wherein a recess is formed on a contact surface of the valve body with the treatment material, and the space is formed by the recess . The water treatment device according to claim 5, wherein the depth of the depression is 3 to 5 mm. The said valve body is a water treatment device as described in any one of Claims 1-6 which moves as the residual amount of the said disinfection disinfectants decreases, and obstruct | occludes the said flow path. The water treatment device according to any one of claims 1 to 7 , wherein the valve means includes at least one elastic body that urges and moves the valve body so that the valve body closes the flow path. The water treatment device according to claim 8 , wherein the valve means includes a plurality of the elastic bodies. A water purifier comprising the water treatment device according to any one of claims 1 to 9 and a filter medium for filtering the disinfecting sterilized water.

Images