JP2002035740A - Water cleaner and activated carbon for water cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water cleaner capable of obtaining cleaned water of substantially same quantity as that of feed water, keeping the effect of activated carbon for a long time, and lightening the weight of the activated carbon, and to provide activated carbon therefor. SOLUTION: A first Venturi part 22 of a small diameter, a second Venturi part 24 of a large diameter, and a space 34 of sufficiently wide cross section are installed from the upstream side to the downstream side in a cylindrical housing 10, and the space 34 is provided with a dome-shaped activated carbon 12. Through-holes 32 are formed in the top part and its vicinity part of the dome-shaped activated carbon 12 to allow water to pass through the holes. Water whose speed was increased at the Venturi parts 22, 24 is made to collide with the dome-shaped activated carbon, and chlorine, bleaching powder, etc., separated by the collision are adsorbed on the activated carbon 12. By making the activated carbon 12 have a dome shape, its weight is lightened. By making water pass through the through-hole 32, the resistance of water is decreased. As a result, the feed amount of water can be made to be nearly equal to the amount of the purified water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier for purifying water and activated carbon for the water purifier accommodated in the water purifier.

[0002]

2. Description of the Related Art Conventionally, various purifiers have been used to purify water such as tap water. For example, tap water is contaminated with chlorine and chalk to prevent the generation of bacteria, and when tap water is used for drinking and food, there is a drawback in that the smell of chlorine and chalk sticks to the nose. Was. For this reason, ordinary households have conventionally purified tap water with a purifier containing activated carbon, and used the purified water for eating and drinking. Activated carbon absorbs chlorine and chalky contained in tap water to convert tap water into water suitable for food and drink.

In order to make the activated carbon work efficiently, it is desirable to increase the surface area of the activated carbon which comes into contact with water.
For this reason, the size of the activated carbon contained in the water purifier has been set to the size of granules or pebbles.

[0004]

When water is passed through a water purifier containing granular or pebble-sized activated carbon, the flow of water is deteriorated in places where the granular or pebble-sized activated carbon is clogged, and the water purifier becomes poor. There was a drawback that the flow rate of the purified water was significantly reduced as compared with the supply flow rate of tap water. Further, there is a drawback that dust and scale contained in tap water adhere to activated carbon in which granules or pebbles are stacked, and the flow of water deteriorates with time, and the effect of activated carbon is reduced. Furthermore, since activated carbon is laminated in a granular or pebble size, the weight of activated carbon increases.

[0005] The present invention has been made in view of the above points, it is possible to obtain purified water of the same amount as the amount of feed water, to maintain the effect of activated carbon for a long time, and to reduce the weight of activated carbon It is an object of the present invention to provide a water purifier that can perform water purification. It is another object of the present invention to provide an activated carbon that can be made to have a dome shape, thereby reducing the weight and enabling the water to collide at a high speed so that a substance to be removed from the water can be easily separated from the water. Things.

[0006]

In order to achieve the above object, a water purifier according to the present invention has a cylindrical housing, and a venturi section for increasing the flow rate of water in the cylindrical inside of the housing, and a venturi section therefor. A space having a larger cross-sectional area than the venturi portion is formed on the downstream side, and a dome-shaped activated carbon is provided in the space, so that water passing through the venturi portion collides with the dome-shaped activated carbon.

In order to achieve the above object, the activated carbon of the present invention is housed in a water purifier, and has a dome shape, and has a through-hole at an apex and at a place other than near the apex. is there.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of the water purifier according to the present invention and activated carbon stored in the water purifier. The water purifier is
The housing 10 includes a cylindrical housing 10 and an activated carbon 12 formed of a single member provided inside the cylindrical shape of the housing 10. The cylindrical housing 10 includes a cylindrical upper housing 14 and a cylindrical lower housing 16 connected thereto.
Consisting of A water supply means 18 (dashed line) such as a water tap or a hose attached thereto is connected to an upper portion of the cylindrical upper housing 14.

The inner wall of the upper housing 14 is directed downward from the top in FIG.
A first venturi portion 22 having a smaller diameter, a second venturi portion 24 having a larger diameter than the first venturi portion 22, and a second inner wall 2 having a larger diameter than the first inner wall 20 and the second venturi portion 24.
6 is comprised. In the upper housing 14, an air introduction hole 28 communicating with the inside and outside is formed at the position of the second venturi portion 24.

The diameter of the inner wall of the lower housing 10 is set to be the same as the diameter of the second inner wall of the upper housing 14. A ring-shaped protrusion 30 protruding inward is formed on an inner wall of the lower housing 10 in the middle in the axial direction. The dome-shaped activated carbon 12 is placed on the protrusion 30. The dome-shaped activated carbon 12 has a large number of through holes 32 formed near the periphery along the periphery. However, the through-hole 32 is not formed at or near the apex of the dome-shaped activated carbon 12. That is, the second venturi portion 24 is located at the top or near the top of the activated carbon 12.
The water (a mixture of water and air) from The mixture of water and air that has bounced off due to the collision is set to flow downstream through the through-hole 32 of the activated carbon 12.

A space 34 having a large inner diameter is formed between the position exiting the second venturi section 24 and the activated carbon 12, and the space 34 accommodates a mixture of water and air which has bounced off the collision with the activated carbon 12. It is set to be large enough. A lid 36 is attached to the lower end of the lower housing 10, and a number of holes 38 are formed in the lid 36.
The mixture of water and air that has passed through the through hole 32 of the activated carbon 12 is discharged to the outside through a hole 38 of the lid 36. The lid 36 is for uniformly discharging purified water, but the lid 36 may not be provided.

In the present invention constructed as described above, water is supplied from the water supply means 18 such as a water tap to the upper housing 14.
, The flow rate of water is increased by the first venturi section 22. Thereafter, air is mixed with water from the outside at the position of the second venturi section 24. By mixing the air with the water, the water is mixed with the air, and the flow rate of the mixture of water and air is further increased. Water (a mixture of water and air) collides with the dome-shaped activated carbon 12 at a further increased flow velocity in the second venturi section 24. By vigorously colliding the water with the activated carbon 12 at a high speed, the separation of chlorine and chlorine contained in tap water from the water is promoted as compared with the conventional case where the activated carbon simply passes through the water. Water that has collided with the dome-shaped activated carbon 12 passes through the surface of the dome-shaped activated carbon 12 and a large number of through-holes 36 formed in a dome shape.
Is adsorbed.

By forming the activated carbon 12 in a dome shape,
The strength of the dome-shaped activated carbon is increased, so that even if water collides with the apex portion, the strength can withstand the strength. Further, by forming the activated carbon 12 in a dome shape, the weight of the activated carbon 12 can be reduced as compared with a conventional one. Furthermore,
By forming the activated carbon 12 in a dome shape, the number of the through holes 36 can be increased as compared with a planar shape, and the total cross-sectional area of the through holes 36 can be increased to supply the water from the water supply means 18. And the amount of water passing through the activated carbon 12 can be made substantially the same. As a result, the amount of purified water from the water purifier can be made substantially equal to the amount of water supplied by the water supply means 18. This can eliminate the possibility that water passing through the activated carbon 12 flows backward.

In the above description, the first venturi portion 22 having a smaller diameter and the second venturi portion 24 having a larger diameter are used.
It has been described that the air introduction hole 28 communicating with the inside and outside is formed at the position of the second venturi portion 24. However, instead of this, one venturi portion may be formed and an air introduction hole may be formed in the venturi portion.
Although the activated carbon 12 has been described for the purpose of removing chlorine and calcium from tap water, the present invention is applicable to water purifiers and activated carbon for removing various substances from water, It can also be used for activated carbon to produce water and the like.

[0015]

As described above, according to the water purifier according to the present invention, high-speed water collides with dome-shaped activated carbon to separate substances such as chlorine and calcium contained in the water from the water. This can be used to remove various substances from water. In addition, one activated carbon
By making the shape of the dome, water can flow more smoothly than the conventional activated carbon in which small particles are stacked, and a purified water amount substantially equal to the amount of water supplied to the water purifier can be obtained. Furthermore, by making the activated carbon into a dome shape, the weight of the activated carbon can be reduced as compared with the conventional activated carbon laminate. By passing the water through the venturi before colliding with the activated carbon, the speed of the water can be increased, and the speed of the water can be further increased by mixing the air with the water. Thus, by increasing the speed of the water colliding with the activated carbon, it becomes easier to separate substances contained in the water from the water.

According to the activated carbon according to the present invention, the dome-shaped activated carbon can obtain strength enough to withstand water collision, and the collision of water can promote the separation of substances contained in water. Further, by making the activated carbon into a dome shape, the weight of the activated carbon can be reduced. Furthermore, by making the activated carbon into a dome shape and increasing the cross-sectional area of the through-hole through which the water formed in the activated carbon is passed, the resistance of the activated carbon passing through the activated carbon is reduced, and the amount of supplied water and the amount of purified water are reduced. Can be almost the same.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a water purifier according to the present invention and activated carbon stored in the water purifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Housing 12 Activated carbon 14 Upper housing 16 Lower housing 22 First venturi part 24 Second venturi part 28 Air introduction hole 32 Through hole 34 Space

Claims (5)

[Claims] 1. A housing having a cylindrical housing, a venturi portion for increasing the flow rate of water is formed inside the cylindrical portion of the housing, and a space having a larger cross-sectional area than the venturi portion is formed downstream of the venturi portion. A water purifier comprising a dome-shaped activated carbon, and colliding water passing through a venturi section with the dome-shaped activated carbon. 2. The water purifier according to claim 1, wherein an air introduction hole is provided in the housing so as to pass through the venturi portion and the outside. 3. The method according to claim 1, wherein the venturi portion comprises a first venturi portion having a small diameter on the upstream side and a second venturi portion on the downstream side, and the second venturi portion and the outside are connected by the air introduction hole. The water purifier according to claim 2, characterized in that: 4. The water purifier according to claim 1, wherein a through-hole is provided in the dome-shaped activated carbon at a position other than a vertex and near the vertex, and water passes through the through-hole. 5. An activated carbon for a water purifier, wherein the activated carbon is housed in a water purifier and has a dome shape, and a through-hole is provided at a position other than a vertex and near the vertex.