JPH06210275A - Water purification device - Google Patents

Abstract

PURPOSE:To improve the removing efficiency for a harmful substance by improving the structure of an active carbon (adsorption agent) storing cartridge and redoubling the contact of untreated water in respects of distance and time. CONSTITUTION:A treated water feeding outlet connected with a raw water introducing inlet and an injection outlet connected with a water source are provided in a water tank 10, and untreated water fed from an intake 26 is purified by means of contact with active carbon 23 in a cartridge 20 installed in the water tank 10 and discharged out of a discharge outlet 22 connected with the treated water outlet of the water tank 10. The inside of the cartridge 20 is divided into an outward chamber 25A connected with the intake 26 and an inward chamber 25B connected with the discharge outlet 22 to make the outward chamber 25A communicate with the inward chamber 25B to enable transition of untreated water, and further the outward chamber 25A and the inward chamber 25B are combined into one unit, and a plurality of units can be disposed radially in parallel with the perpendicular vertical axial line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifying apparatus for purifying raw water such as tap water and groundwater as drinking water for general households and businesses.

[0002]

2. Description of the Related Art Conventionally known as a general structure of a water purifier has a water tank into which raw water such as tap water and ground water is introduced, and the water tank is filled with an adsorbent such as activated carbon. Is provided, and the raw water is brought into contact with the adsorbent to adsorb harmful substances for purification. That is, musty odor such as hypochlorous acid (ClO ⁻ ) and organic chlorine compounds contained in raw water, or adsorbed substances such as general bacteria and pigments are adsorbed by activated carbon.

Usually, a cartridge is provided with a filter at the bottom of the bottom thereof, and the raw water taken into the cartridge from here is filtered, and the treated water purified by contact with activated carbon is passed through the upper filter in the cartridge again to be filtered. After that, it is led out of the water tank and used for drinking water or the like.

[0004]

By the way, in such a conventional water purifier, the contact with the activated carbon during the passage of the raw water from the lower part to the upper part of the cartridge is small in terms of time and distance, particularly trihalomethane and There is a problem that harmful substances such as organic chlorine compounds cannot be sufficiently removed.

Also, when looking at the flow of raw water in the cartridge, there is a tendency that it is biased toward the center of the raw water flow axis, and it is difficult to make uniform contact with activated carbon with a full cartridge cross-sectional area. In any case, there is a disadvantage that the life of the cartridge or the entire device is shortened in combination with the efficiency of removing harmful substances.

An object of the present invention is to provide a water purifying apparatus which improves the efficiency of removing harmful substances by improving the structure of a cartridge containing activated carbon to double the contact of raw water in distance and time. .

[0007]

To achieve this object, in the invention of claim 1, a water tank having a raw water inlet connected to a water source and a treated water outlet connected to a pouring outlet,
It is a container body that is placed in the water tank to store the adsorbent, and purifies the raw water taken from the intake port by contacting with the adsorbent,
It is equipped with a cartridge that discharges this treated water from an outlet connected to the treated water outlet of the water tank, and the inside of the cartridge is used as a forward chamber following the intake port filled with the adsorbent and as a return chamber following the outlet. It has a structure in which the outgoing chamber and the returning chamber communicate with each other so that raw water can be transferred.

Further, in the invention of claim 2, it is possible to adopt a construction in which the forward chamber and the return chamber are set as one unit and a plurality of units are radially arranged in parallel with the vertical axis.

[0009]

According to the present invention, since the raw water taken in through the intake port moves from the outflow chamber to the return chamber and is discharged from the outlet as treated water, the contact time and distance of the raw water are both long and the adsorbed substance The efficiency of adsorption and removal of is increased.

According to the second aspect of the present invention, since a plurality of units are provided with the forward chamber and the return chamber as one unit, it is possible to prevent the unbalanced flow of the raw water in the cartridge.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a water purifying device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of the apparatus. Raw water to be treated, for example, tap water is supplied from a water source to a tank body 11 of a water tank 10 and enters the tank through an inlet 12. A cartridge 20 filled with activated carbon as an adsorbent is arranged inside the tank body 11. The cartridge 20 is in the shape of an inverted narrow container, the bottom 21 is squeezed into a conical shape, and the tip neck portion thereof serves as a treated water outlet 22, which is fixed to the outlet 13 on the side of the water tank 10. I am doing it. The upper part is completely closed by the top plate 21a.

As shown in the perspective view of FIG.
For example, in the inside of the cylindrical cartridge 20, a large number of filling chambers parallel to the longitudinal axis are radially separated, and activated carbon 23 as an adsorbent is individually filled therein. One of the filling chambers, which is adjacent to the other, is made into one unit, and one filling chamber separated by the partition wall 24 is the forward chamber 25A, and the other filling chamber is the returning chamber 25A.
It is as B. Further, the conical bottom portion 21 of the cartridge 20 is provided with as many intake ports 26 as the number of the outgoing chambers 25A that are separated from each other, and raw water in the water tank 10 can be taken from this to be supplied to the outgoing chamber 25A. That is, in the outgoing chamber 25A, the flow of raw water can go from the lower portion to the upper portion as shown by the solid arrow, meander from the upper portion, and move to the adjacent returning chamber 25B. Outgoing room 2
In order to enable transfer from the upper part of 5A to the return chamber 25B, a communication port 24a is provided near the upper end of the partition wall 24, passing through this, meandering from the upper part of the outgoing chamber 25A, and advancing to the next recovery chamber 25B from the upper part. It is ready for inflow. The lower part of the return chamber 25B is directly connected to the treated water outlet 22. That is, in the recovery chamber 25B, the flow of raw water goes from the upper part to the lower part as shown by the broken line arrow, goes out from the treated water outlet 22 and opens the spout valve (not shown) to be used for drinking water or the like. is there.

A plurality of one-unit filling chambers including the outgoing chamber 25A and the returning chamber 25B are provided radially as shown in the drawing, and the raw water in the water tank 10 is taken into the outgoing chamber 25A of each unit to return to the returning chamber 25B. Treated water of the raw water activated by contact with the activated carbon 23 on the way via the can be collected from each recovery chamber 25B to the outlet 22.

As is clear from the cross-sectional view of FIG. 1, filters 27 and 50 are provided above and below the inside of the cartridge 20, respectively.
No. 28 is provided, the raw water is filtered by the lower filter 27 to enter the outgoing chamber 25A, and is filtered again through the upper filter 28 to enter the next return chamber 25B.

Since the water purifying apparatus of the embodiment has the above constitution, the following effects can be obtained in use. Raw water to be treated, such as tap water, is supplied to the water tank 10 from a water source and stored in the tank. The tap water that has become almost full in the tank body 11 is introduced into the outward chamber 25A of each unit of the cartridge 20. That is, the raw water taken in from each of the lower intake ports 26 is filtered by the lower filter 27 and introduced into the outgoing chamber 25A, and by contact with the activated carbon 23, residual chlorine such as hypochlorous acid or an organic chlorine compound in the raw water is contacted. Components, musty odor, or adsorbed substances such as general bacteria and pigments are adsorbed. In addition, outgoing room 2
5A meanders from the upper side, passes through the communication port 24a of the partition wall 24, is filtered by the upper filter 28, and even when entering the return chamber 25B, the adsorbed substance is similarly removed by contact with the activated carbon 23. The treated water of the raw water purified by adsorption in the outgoing chamber 25A and the returning chamber 25B passes through the lower filter 26 again and is collected in the outlet 22.

As described above, in the water tank 10, the raw water is dispersed into the plurality of units in the cartridge 20, and in each unit, the activated carbon 23 can be brought into contact with the forward chamber 25A and the return chamber 25B at a combined distance. In other words, compared with the conventional cartridge of the same size, the contact distance and time of the raw water to the activated carbon 23 are remarkably large, and even if one unit is taken, the contact distance and the time of double reciprocation can be obtained. . In addition, since a large number of units are arranged radially in the cartridge 20, the raw water is not concentrated in the central portion of the cartridge, and the raw water is uniformly dispersed in the entire cartridge 20.

[0018]

As described above, the water purifying apparatus according to the present invention, according to the first aspect of the invention, is a harmful substance such as trihalomethane, which has heretofore been impossible or difficult to remove by this type of water purifying apparatus. Has the advantage of being efficiently adsorbed and removed, and the durability of the device is significantly improved.

Further, according to the invention of claim 2, since a plurality of units having the forward chamber and the return chamber as one unit are provided in the cartridge, the concentration of the raw water seen in the conventional apparatus in the central portion of the cartridge can be prevented. In terms of prevention and uniform dispersion, the efficiency of adsorption removal can be further improved as compared with the case of claim 1.

[Brief description of drawings]

FIG. 1 is a sectional view of a water purification apparatus according to an embodiment of the present invention.

FIG. 2 is a partially perspective perspective view of the water purification apparatus according to the embodiment.

[Explanation of symbols]

10 ... Water tank, 12 ... Raw water inlet, 13 ... Treated water outlet,
20 ... Cartridge, 22 ... Treated water outlet, 23 ... Activated carbon (adsorbent), 24 ... Partition, 24a ... Communication port, 25A ...
Outgoing room, 25B ... Return room, 26 ... Intake port, 27, 28 ... Filter.

Claims (2)

[Claims] 1. A water tank having a raw water inlet connected to a water source and a treated water outlet connected to a pouring outlet, and a container body arranged in the water tank for containing an adsorbent, which is taken in from a water intake. Purify raw water by contact with adsorbent,
A cartridge that discharges this treated water from an outlet connected to the treated water outlet of the water tank, and the inside of the cartridge is divided into a forward chamber that follows the intake port filled with the adsorbent and a return chamber that follows the outlet. Then, a water purification device characterized in that the outgoing chamber and the returning chamber are communicated with each other so that the raw water can be transferred. 2. The water purifier according to claim 1, wherein the outgoing chamber and the returning chamber are set as one unit, and a plurality of units are radially arranged in parallel to the vertical axis.