JPH0768275A - Dechlorination filter - Google Patents

Abstract

PURPOSE:To make a filter economical and have improved treatment function as the whole filter by forming a reductive and reactive filtering agent which can decompose remaining chlorine in tap water into a column shape and installing one or more water passing hollow routes to which water can be led directly in the column. CONSTITUTION:Calcium sulfite, a reductive and reactive filtering agent 2 to decompose remaining chlorine in tap water, is formed into a column-like shape to give a column body 4 and a plurality of water passing hollow routes 3 to which water can be led directly in up and down directions are installed to give a dechlorination filter 1. When tap water is led to the filter 1, the water dissolves the filtering agent 2 by passing the filtering agent 2 in the column body 4 and, by the filtering agent 2, remaining chlorine in the tap water is decomposed and the water quality is improved. At that time, since a part of the tap water is directly led to the water passing route 3 and passes therethrough, remaining chlorine is not decomposed but the water passes the filtering agent 2 at a water leading outlet and is mixed with tap water in which the filtering agent 2 is dissolved excessively and thus the remaining chlorine can be decomposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dechlorination filter for decomposing residual chlorine contained in tap water to improve water quality.

[0002]

2. Description of the Related Art Usually, tap water used as drinking water or shower water for washing hair contains a large amount of residual chlorine because it is sterilized and sterilized. This residual chlorine is not preferable because it causes an odor of chlorine in the case of drinking water and damages the hair in the case of shower water for washing hair.

Therefore, as a dechlorination apparatus for removing residual chlorine, Japanese Utility Model Laid-Open No. 3-19596 discloses a cartridge type dechlorination filter containing dechlorination particles in a casing having water passage inlets and outlets at both ends. What is placed is described.

[0004]

However, the above-mentioned actual Kaihei 3
In the dechlorination apparatus described in Japanese Patent Publication No. -19596,
Certainly, residual chlorine can be decomposed to improve water quality, but since all tap water must always flow between dechlorinated particles that are the filtering agent, when used in the shower, the resistance of the filtering agent causes the tap water to flow. The flow of water is restricted, and the momentum of the water in the shower is weakened, which makes the shower less useful. In addition, increasing the amount of water in order to not weaken the momentum of the water in the shower will result in wasted water in the shower that is used with the water flowing away,
It is economically unfavorable because the dechlorination performance of the filtering agent deteriorates quickly. The present invention is intended to address such a problem, and has achieved the object by completing the invention described below.

[0005]

According to the present invention, a granular or powdery reducing reactive filter agent that decomposes residual chlorine in tap water (hereinafter simply referred to as "filter agent") is solidified into a column or A columnar body is formed by forming a columnar body having an arbitrary shape such as a prism, and a hollow water passage that penetrates from the water inlet side to the water outlet side through which water can directly flow through the columnar body is provided. Or, two or more are provided, or a large number of water passages along the flow direction of water, through which water can directly flow, are provided on the peripheral surface of the columnar body formed by the filtering agent, or the columnar body formed by the filtering agent. Is provided with a large number of water flow grooves along the flow direction of water on the inner peripheral surface, and is inserted and removed in a cylindrical cartridge container adapted to the columnar body, Accordingly, the entire columnar body is made of water-permeable paper or non-woven fabric. In the film body is obtained so as to encapsulate.

Further, according to the present invention, the film bodies made of the above-mentioned water-permeable paper or non-woven fabric are overlapped with each other so that a gap is formed therebetween, and their three-sided edges are sealed to form a bag. A sheet-like body in which the hollow portion of the bag-like film body is filled with a granular or powdery filter agent, and a water passage that allows a part of water to directly flow without flowing through the sheet body. It is a columnar body that is loosely wound into a roll so as to be provided, and if necessary, divides the hollow part of the film body in parallel into a plurality of elongated strip-shaped void bodies so that the cross-section has a substantially corrugated shape. , Providing a plurality of water passages, providing a bypass pipe in the water passages,
The bypass pipe may be provided with a plurality of small holes,
It is also one in which columnar bodies made of sheet bodies wound in a roll shape are arranged in series so as to have a slight gap.

Further, according to the present invention, the columnar body formed of the filtering agent is provided on the water passage outlet side with a shielding portion on which the water flowing through the water passage or the water passage once hits, or wound in a roll shape. On the water outlet side of the columnar body composed of the above sheet body, a DC resistor having a shield part and a large number of water holes through which water flowing through the water passage once hits is provided, or a sheet body wound in a roll shape. A columnar body made of a material having a large number of water passage holes on the side of the water passage and one of which is detachably inserted into a cartridge container having the same shielding portion and water passage hole on the side of the water passage outlet. is there.

When the shielding member is integrally provided on the columnar body formed by hardening the filtering agent by using the filtering agent, water can flow between the filtering agents, so that a water passage hole is particularly provided. Although it is needless to say, it does not matter if the water passage hole is provided if necessary.

[0009]

When tap water is passed through the filter configured as described above, the tap water dissolves the filter agent by passing between the filter agents in the columnar body or the sheet body, and the residual chlorine in the tap water is removed by this filter agent. It will be decomposed and the water quality will be improved. At this time, some of the tap water does not flow between the filtering agents and flows directly through the water passage or water ditch, so residual chlorine is not decomposed while passing through the filter, but the water outlet of the filter By mixing the filter agent with tap water that is dissolved more than necessary through the filter agent, the excess filter agent decomposes residual chlorine to improve the quality of all tap water.

[0100] In addition, a part of the tap water is allowed to flow directly through the water passage, so that the tap water is not affected by the resistance of the filtering agent, and the water flow is improved without lowering the momentum. By reducing the amount of water passing between the agents, the amount of filtering agent dissolved is suppressed, the life of the filtering agent is extended, and the amount of dissolved filtering agent is an appropriate amount with respect to the total amount of water. The amount of treated water is improved without decreasing

Further, when a direct current resistor having a shielding portion or a shielding portion is provided on the water outlet side of the filter, the water flowing through the water passage once hits the shielding portion, and the flow velocity is temporarily weakened. Here it will be more reliably mixed with the tap water that has passed between the filtering agents,
Since the flowing water is suppressed, the water pressure becomes high and the water is vigorously ejected.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 as a first embodiment of the present invention, calcium sulfite, which is a reducing reactive filter agent (2) that decomposes residual chlorine in tap water, is formed into a columnar shape (4). ), The dechlorination filter (1) is provided by providing a plurality of hollow water passages (3) through which water can directly flow in the vertical direction of the columnar body (4). The entire filter (1) is wrapped with a water-permeable non-woven fabric laminated at an appropriate density to facilitate handling. At this time, in order to prevent the dechlorination filter (1) from being damaged by external pressure, the dechlorination filter (1) is covered with a non-woven fabric, and the peripheral portion except the upper and lower surfaces is molded with synthetic resin or the like. You may make it protect with a member.

As the reducing reaction filter (2),
Although calcium sulfite is used here, the present invention is not limited to this, and a reducing agent such as sodium sulfite or sodium ascorbate may be used.

As a second embodiment of the present invention, as shown in FIG. 2, water that can directly flow on the peripheral surface of the columnar body (14) formed of the filtering agent (12). The dechlorination filter (11) is provided by providing a large number of water passage grooves (15) along the flow direction. This dechlorination filter (11) may also be used by encapsulating the whole with a non-woven fabric or by protecting the peripheral side portion except the upper and lower surfaces with a hard member.

In the third and fourth embodiments of the present invention, as shown in FIG. 3, water directly flows to the water outlet side of the columnar body (24) formed of the filtering agent (22). A dechlorination filter (21) is provided by providing a shielding part (27) with which the water flowing through the hollow water passages (23 ... 23) once hits, or as shown in FIG. At the water outlet side of the columnar body (34) formed by 42), the water that has flowed through the water flow grooves (35 ... 35) along the water flow direction in which water can directly flow once The dechlorination filter (31) is provided by providing a shield part (37) that abuts.
These shield portions (27) or (37) are provided when the water passages (23 ... 23) or the water passage grooves (35 ... 35) provided in the columnar body are formed. It may be provided by stopping the notch so that (37) remains, or may be provided integrally when the columnar body is formed.

As a fifth embodiment of the present invention, as shown in FIG. 5, a columnar body (44) formed of a filtering agent (42) is passed through the inner peripheral surface along the flowing direction of water. Groove (4
A large number of 6) are provided, and water can directly flow by being removably inserted into a cylindrical hard cartridge container (45) having a shape conforming to the shape of the columnar body (44). A dechlorination filter (41) is provided by providing a plurality of hollow water passages (48). This dechlorination filter (41) may also be used by covering the upper and lower surfaces through which water flows with a non-woven fabric.

In the sixth embodiment of the present invention, as shown in FIGS. 6 to 8, two film bodies made of water-permeable non-woven fabric laminated at appropriate densities are formed with voids therebetween. And the three side edges are sealed to form a bag, and the hollow part (5
A sheet body (59) in which 7) is filled with calcium sulfite as a filter agent (52) and the opening is sealed, is wound in a roll shape so as to provide a water passage (53) through which water directly flows, to form a columnar body. By using (54), dechlorination filter (5
1).

The sheet body may be formed by simply stacking two flat film bodies and sealing the three side edges to form a bag having a hollow portion therebetween, but the hollow portion is filled. In consideration of the fact that the filtering agent is uniformly dispersed and the ease of subsequent winding into a roll, etc., as shown in FIG. 7, a film having a large number of parallel grooves having a substantially corrugated cross section ( 55a) and flat film (5
5b) are overlaid and two films (55
a, 55b) and the respective contact portions (56 ... 56) are attached to form a hollow portion (57) into a plurality of streaky void bodies (58 ... 5).
8), and the filtering agent (52) in the streak void body (58)
A sheet body (59) filled with is preferable.

In the water passage (53) through which water directly flows, it suffices that the water does not pass between the filtering agents in the sheet body (59) and can pass without any resistance. Although (59) may be loosely wound into a columnar body to form a cylindrical path at the center, the sheet body (59) is deformed by water pressure and the water passage (53) is closed. A dechlorination filter (61) provided with a bypass pipe (65) may be provided as shown in FIG. 9 as a seventh embodiment of the present invention in order to eliminate the risk of slipping. The bypass pipe (65) ensures the water passage (63).

Water passage (6) by bypass pipe (65)
9), only one is provided in the central portion in FIG. 9, but as an eighth embodiment of the present invention, FIG.
As shown in 0, a plurality of bypass pipes (65 '... 6
5 ') is wound so as to be sandwiched between sheet bodies (69') which are columnar bodies (64 '), and a plurality of water passages (6
3 '... 63') may be provided as the dechlorination filter (61 ').

In addition, as a ninth embodiment of the present invention, as shown in FIG. 11, the columnar bodies (64a) (64b) formed by winding the sheet bodies (69a) (69b) respectively have a slight gap (60). If the dechlorination filters (61 ″) are arranged in series so as to have a sheet body (69a),
The dechlorinated water that has passed through the columnar body (64a) made of is mixed by the change of the water flow in the gap portion (60), and the mixed water is further mixed in the next sheet. By passing through the columnar body (64b) composed of the body (69b), the dechlorination treatment of residual chlorine can be performed more reliably.

Although the sheet bodies are arranged in two stages in FIG. 11, it is needless to say that the present invention is not limited to this and includes those arranged in series in three or more stages. In addition, the gap is not limited to the one that forms a hollow gap using a frame body or the like, and a gap is formed between the sheet bodies by interposing a material having water permeability such as a sponge body. Such a configuration is also included in the gap portion of the present invention.

Further, the bypass pipe (65) is a simple elongated tubular body in FIG. 9, but as shown in FIG. 12 as the tenth embodiment of the present invention, the circumference of the tubular body is shown. If the dechlorination filter (71) is a bypass pipe (75) provided with a plurality of small holes (76 ... 76) on its side, the dechlorination filter will pass through the columnar body (74) consisting of the sheet body (79). Water that has been dechlorinated by the agent (72) and undechlorinated water that passes through the water passage (73) through the bypass pipe (75) form small holes (76 ... 76) in the middle. Therefore, the residual chlorine can be dechlorinated more reliably.

Further, as an eleventh embodiment of the present invention, as shown in FIG. 13, the water flowing through the water passage is temporarily discharged to the water outlet side of the columnar body (84) made of the sheet body (89). The impinging shield (87) and many water holes (86)
86) and a dechlorination filter (81) provided with a DC resistor (85), or a columnar body composed of a sheet body (99) as shown in FIG. 14 as a twelfth embodiment of the present invention. A large number of water holes (98) on the water inlet side of (94)
... 98), and a cartridge container (9) having, on the water outlet side, a shield part (97) against which water flowing through the water passage once hits and a large number of water holes (96 ... 96).
A dechlorination filter (91) having a columnar body (94) inserted in 5). In this case, the number of shields corresponding to the water passage provided in the columnar body is provided to prevent the water flowing through the water passage from directly flowing out.

The direct current resistor (85) and the cartridge container (95) withstand the water pressure and are required because they can mix and increase the water pressure by suppressing and weakening the running water without letting water pass through the shield. It is integrally formed with synthetic resin so that water does not pass from other locations. In addition, the water passage is a square notch or a circular hole in the drawing,
The shape is not limited to this, and may be a mesh shape or a slit shape.

The cartridge container (95) may be formed integrally by inserting a columnar body (94) inside, but a lid and a sheet similar to the DC resistor (85) shown in FIG. It consists of a container body (not shown) for inserting the body,
It may be a cartridge type in which only the sheet body can be replaced.

The dechlorination filter having such a structure is used by arranging the dechlorination filter at any position on the water passage from the tap of the tap water to the faucet or the shower head, as in the case of a normal water purification filter. .

[0028]

[Effects] As described above, according to the present invention, not only the dechlorination treatment is performed, but also the passage of the tap water is provided so that the passage of tap water is not restricted and the water passage is enhanced. In addition to reducing the amount of water passing through the filter agent, there is no risk that the filter agent will elute more than necessary, and the processing capacity of the filter as a whole should be improved to make it economical. You can

Further, since the water pressure is further increased by the shielding portion provided on the water outlet side, it is possible to increase the water pressure without increasing the water amount in the shower in which the water is discharged and used. It can be said that it is an economical filter that saves water and is suitable for showers.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a dechlorination filter of the present invention.

FIG. 2 is a perspective view showing a second embodiment of the dechlorination filter of the present invention.

FIG. 3 is a partially cutaway perspective view showing a third embodiment of the dechlorination filter of the present invention.

FIG. 4 is a perspective view showing a fourth embodiment of the dechlorination filter of the present invention.

FIG. 5 is a perspective view showing a fifth embodiment of the dechlorination filter of the present invention.

FIG. 6 is an upper and lower edge cut perspective view showing a sixth embodiment of the dechlorination filter of the present invention.

FIG. 7 is an overall perspective view and a partially enlarged sectional view illustrating a sheet body used in a sixth embodiment of the dechlorination filter of the present invention.

FIG. 8 is a sectional view taken along line AA of the sixth embodiment of the dechlorination filter of the present invention shown in FIG.

FIG. 9 is a perspective view showing a seventh embodiment of the dechlorination filter of the present invention.

FIG. 10 is a perspective view showing an eighth embodiment of the dechlorination filter of the present invention.

FIG. 11 is a perspective view showing a ninth embodiment of the dechlorination filter of the present invention.

FIG. 12 is a perspective view showing a tenth embodiment of the dechlorination filter of the present invention.

FIG. 13 is a perspective view showing an eleventh embodiment of the dechlorination filter of the present invention.

FIG. 14 is a perspective view showing a twelfth embodiment of the dechlorination filter of the present invention.

FIG. 15 is a cross-sectional view illustrating a conventional dechlorination filter.

[Explanation of symbols]

 1 ・ ・ Dechlorination filter 2 ・ ・ Filtration agent 3 ・ ・ Water passage 4 ・ ・ Columnar body 15, 26 ・ ・ ・ ・ ・ ・ Water passage 25 ・ ・ Cartridge container 37, 47 ・ ・ ・ ・ ・ ・ Shielding part 51 ・ ・ ・ ・ ・ ・ Dechlorination filter 52 ・ ・ ・ ・ ・ ・ Filtration agent 53 ・ ・ ・ ・ ・ ・ Water passage 54・ ・ ・ Columnars 55a, 55b ・ ・ ・ Film body 57 ・ ・ ・ ・ ・ ・ Hollow part 58 ・ ・ ・ ・ ・ ・ Striped void body 59 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Sheet body 60 ・ ・··· Gap 65 ··· Bypass pipe 76 ··· Small hole 85 ··· DC resistor 86, 96, 98 ··· Water passage 87, 97 ·・ ・ ・ ・ ・ Shielding part 95 ・ ・ ・ ・ ・ ・ Cartridge container

Claims (14)

[Claims] 1. A columnar body formed by columnarizing a reducing and reactive filter agent for decomposing residual chlorine in tap water is provided with one or more hollow water passages through which water can directly flow. Dechlorination filter characterized by 2. A water passage along the flow direction of water, through which water can directly flow, on the peripheral surface of a columnar body formed in a columnar shape with a reducing reactive filter agent that decomposes residual chlorine in tap water. Dechlorination filter characterized by being provided with 3. The dechlorination according to claim 1, wherein the columnar body is provided with a shielding portion on the water outlet side of the column body against which water flowing through the water passage or the water groove once hits. filter 4. The decoupling device according to claim 3, wherein the shielding portion is integrally provided by forming a water passage or a water groove near the water outlet in the columnar body. Chlorine filter 5. A cylindrical body having a columnar body of a reducing and reactive filter agent for decomposing residual chlorine in tap water, the columnar body having a water passage groove formed on the inner peripheral surface along the water flow direction. A dechlorination filter characterized by being inserted and removed freely in a cartridge container. 6. A water-permeable film body is superposed so that a void is formed between the film bodies, and its three-sided edges are sealed to form a bag. A dechlorination filter comprising a sheet body filled with a reducing reactive filter agent, which is rolled into a columnar shape so as to provide a water passage through which water can directly flow. 7. A water-permeable film body is superposed so that a void is formed between the film bodies, and its three-sided edges are sealed to form a bag. Further, a plurality of long and narrow strip-like voids are provided in parallel to each other, and a sheet body in which the hollow space of the strip-like voids is filled with a reducing reactive filter is treated with water along the strip-like voids. A dechlorination filter characterized in that it is rolled into a columnar shape so as to provide a water passage that can be directly distributed. 8. The reducing reactive filter agent is any one of granular or powdery calcium sulfite, sodium sulfite, or sodium ascorbate, according to claim 1. The dechlorination filter described in any one. 9. The dechlorination filter according to claim 1, wherein a bypass pipe is provided in a water passage through which water directly flows. 10. The dechlorination filter according to claim 6 or 7, wherein a plurality of bypass pipes, which are water passages, are provided. 11. The dechlorination filter according to claim 6, wherein the columnar body made of a sheet body wound in a roll shape is arranged in series with a slight clearance. 12. The dechlorination filter according to claim 9, wherein the bypass pipe, which is a water passage, is provided with a plurality of small holes. 13. A DC resistor having a columnar body made of a sheet wound in a roll shape, having a shield part against which water flowing through a water passage once hits and a large number of water passage holes on the water outlet side. It is provided, It is characterized by the above-mentioned.
Dechlorination filter described in. 14. A shield part having a columnar body made of a sheet wound in a roll shape, having a large number of water passage holes on the water passage inlet side, and against which water flowing through the water passage has hit the water passage outlet side once. The dechlorination filter according to claim 6 or 7, wherein the dechlorination filter is inserted and removed in a cartridge container having a large number of water passage holes.