JPH10452A - Floating type water purifying tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily replace a filter by introducing outside water into the upper part of a water tank by an intake passage to pass introduced water through the filter bed in the water tank to allow them to flow from above to below and arranging the filter to the upper part of the filter bed. SOLUTION: A water tank 2 is formed by integrally connecting the bottom wall received by a bottom plate 4 to the flexible film 5b constituting a peripheral wall 5 and the bottom plate 4 and the peripheral wall 5 are sealed in a watertight state. A filter 7 is arranged to the upper part of a filter bed 6 and attached to the water tank 2 in a freely detachable manner. In this water purifying tank 1, when the water in a junction pit 9 is pumped out by an underwater pump 10, the water level in the junction pit 9 lowers to generate a water stream restoring the water level and the water flowing into the water tank 2 passes through the filter 7 and the filter bed to be taken in the junction pit 9 and passes through a water supply pipe 8 to introduce outside water into the water tank 2. By this constitution, since the filter can be easily replaced, the filter can be replaced at a proper period and purifying capacity can be kept stable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to environmental water (river,
Tanks used to purify water from lakes, marshes, sea areas, etc.,
The present invention relates to a floating purification water tank that is used while floating on the water surface.

[0002]

2. Description of the Related Art Permanently installed purification water tanks using concrete-cast water tanks are not suitable for purifying a large number of small rivers and ponds because of their high equipment costs and relocation.

For this reason, the present applicant can mass-produce at a factory,
The inventor of the present invention has proposed a floating purifying water tank which is inexpensive and can be installed at any location, and is proposed in Japanese Patent Application No. 5-241194.

In the purification tank, a filtration layer is provided inside a water tank which is installed floating on the water surface by the buoyancy of a floating body, and external water flowing into the water tank from below the water tank is purified by passing through the filtration layer. Water is pumped out of the tank using a pump or the like.

[0005]

In the purifying water tank, it is desired to delay the clogging of the filter medium as much as possible in order to suppress a decrease in the purifying ability. In order to prevent clogging, a filter is disposed in front of a filter layer formed of a filter material, and the suspended suspended substance in water is removed by the filter in advance. The purifying water tank proposed in JP-A-2003-146131 has a structure in which the introduced water flows upward from below, so that it is necessary to mount the filter on the bottom of the water tank, and there has been a problem that it is difficult to periodically replace the filter.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the structure of a floating-type purified water tank to facilitate filter replacement.

[0007]

In order to solve the above-mentioned problems, according to the present invention, a filter and a filter layer are provided inside a water tank which is installed floating on the water surface by the buoyancy of a floating body, and an external water introduced into the water tank is provided. In the floating purification tank that discharges the water after passing through the filtration layer to the outside in the order of the filter and the filtration layer, a water intake channel for introducing external water to the upper part of the water tank is provided. The filter was arranged on the upper part of the filtration layer in a configuration of flowing from top to bottom through the filter.

[0008] As another structure, a filtration layer is provided inside a water tank which is installed floating on the water surface by the buoyancy of a floating body, and external water introduced into the water tank from the bottom opening of the water tank is passed through the filtration layer. In the floating purifying water tank that pumps out the water after passing outside, an outer frame is provided outside the water tank so as to be immersed in the water to create an intake channel between the tank and the upper end of the outer frame and the peripheral wall of the water tank. Between the bottom and the bottom of the water tank, a filter is attached to this inlet part, and external water is filtered by the filter and flows into the water intake passage, and a gap formed between the water tank and the bottom plate of the outer frame. It adopted the configuration that led to.

In these purification water tanks, a water separation tank for taking in water after passing through the filtration layer is added to the inside of the water tank, and the water flowing into the water separation tank is pumped out of the water tank by a pump. And desirable.

[0010]

The purified water tank according to the present invention has a structure in which external water is introduced into the upper part of the water tank through a water channel and flows from the top to the bottom in the water tank, and a filter is provided on the upper part of the filtration layer.

Another structure is as follows. Although the flow of water in the water tank is directed upward from the bottom as before, an intake channel for turning external water is provided, so that an inlet of an intake channel formed on the upper side of the water tank. A filter can be attached to the section.

Therefore, in both of the purifying water tanks of the structures, the filter is located on the upper part of the water tank, and there is no work restriction on the position, so that the filter can be easily replaced.

If there is a water separation tank, a pump can be installed in the water separation tank to make the purified water tank well-organized.

[0014]

1 and 2 show a first embodiment of a floating purified water tank according to the present invention.

The purified water tank 1 includes a water tank 2, a filter layer 6 and a filter 7 provided in the water tank, a water supply pipe 8 for allowing external water to flow into the water tank 2, and a water separation tank 9 installed at the center of the water tank. And a submersible pump 10 provided in the diversion tank 9
And a water flow valve 11 used for draining water from the water tank 2 and the like.

The water tank 2 is formed by arranging a bottom plate 4 made of vinyl chloride on an aluminum frame 3 and standing up a peripheral wall 5 on the outer periphery of the bottom plate 4. Further, the peripheral wall 5 is formed by wrapping a floating body 5a with a water-proof flexible film (rubber cloth or the like) 5b. The floating body 5a used here is a panel made of polystyrene foam, but may be a bag having an air chamber, a hollow or solid float, or the like. The presence or absence of the buoyancy adjusting function is not particularly limited, but it is preferable that the wrapping by the flexible membrane 5b be removable so as to facilitate transportation and transfer of the purified water tank.

The illustrated water tank 2 is configured such that the bottom wall received by the bottom plate 4 is integrally connected to the flexible film 5b constituting the peripheral wall 5 so that the space between the bottom plate 4 and the peripheral wall 5 is watertightly sealed. I have.

The filter layer 6 is constructed by laying a filter material. It is preferable that the filter layer 6 has a finer mesh of the filter material toward the outlet side.

The filter 7 is provided above the filtration layer 6. The filter 7 is detachably attached to the water tank 2 so that it can be replaced regularly. Although the mounting structure is not shown, a well-known structure may be used, and a special structure is not required.

A total of four water supply panels 8 are provided so as to penetrate the bottom plate 4, the filtration layer 6, and the filter 7, and the pipes 8 serve as water intake channels to introduce external water into the upper part of the water tank 2.
The water supply pipe 8 may penetrate the peripheral wall 5, and it is not essential that the water supply pipe 8 be arranged vertically. The number can be freely increased or decreased.

The water separation tank 9 has a large number of minute holes on the outer periphery of the lower part, and the filtered water flows into the inside from the holes.

The purified water tank 1 shown in FIG.
When the water in the water separation tank 9 is pumped out (the tank in the figure discharges the pumped water as a fountain from the nozzle 12), the water level in the water separation tank 9 is lowered, and a water flow for restoring the water level is generated. Water flowing into the inside is taken into the water separation tank 9 through the filter 7 and the filtration layer 6. Further, since the water level in the water tank 2 is lowered by this, external water is introduced into the water tank 2 through the water supply pipe 8, and purification of the pond or the like is performed by repeating this operation.

In the purified water tank 1 shown in FIG. 1, external water is sucked up by a pump, introduced into the upper part of the water tank 2, and the filtered water is opened in the bottom of the water tank 2 and discharged out of the water tank. With this configuration, the water separation tank 9 can be omitted.

FIGS. 3 and 4 show a second embodiment.
The purified water tank 1 has a structure in which a bottom plate 4 is omitted and a filter 13 is supported by a net 13 to form an opening 14 at the bottom of the water tank 2. Also, a bottomed cylindrical outer frame 15 is attached to the outside of the water tank 2 to form a water intake passage 18 between the peripheral wall 16 of the outer frame and the peripheral wall 5 of the water tank 2, and the water intake passage 18 near the water surface is formed. A filter 7 is detachably attached to the inlet.

The external water filtered by the filter 7 and flowing into the water intake passage 18 reaches the bottom of the water tank 2 through a gap formed between the water tank 2 and the bottom plate 17 of the outer frame 15 and passes through the opening 14 to the water tank. 2 and flows from bottom to top in the bed, during which it is purified by the filtration layer 6. In this case, the purified water is supplied to the tank 2
Since the water is collected in the upper part of the tank, the water separation tank 9 is provided with a hole in the upper part, from which the purified water is taken in. Since the purified water tank can also directly pump purified water by a pump, the water separation tank 9 is not an essential element.

The other structure is the same as that of the first embodiment. Therefore, the same reference numerals are given to the drawings, and the description will not be repeated.

The purifying water tank of the present invention is preferably one that can be disassembled and reassembled in order to facilitate transportation and relocation. However, the present invention is also effective for a structure that cannot be disassembled and reassembled. is there.

[0028]

As described above, in the floating purifying water tank of the present invention, the filter placed in front of the filter layer is arranged above the water tank by devising the intake channel, so that the purifying water tank can be lifted in the air, The filter can be replaced without the operator entering the water. If the filter replacement is facilitated in this way, the filter can be replaced at an appropriate time, and the purification performance can be stably maintained.

[Brief description of the drawings]

FIG. 1A is a simplified cross-sectional view of a floating purified water tank according to a first embodiment. FIG. 1B is a plan view of the water tank.

FIG. 2A is a simplified cross-sectional view of the second embodiment. FIG. 2B is a plan view of the same water tank with a filter material removed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Purification water tank 2 Water tank 3 Aluminum base 4 Bottom plate 5 Peripheral wall 5a Floating body 5b Flexible membrane 6 Filtration layer 7 Filter 8 Water supply pipe 9 Water distribution tank 10 Underwater pipe 11 Water flow valve 12 Nozzle 13 Net 14 Bottom opening 15 Outer frame 16 Perimeter wall 17 Bottom plate 18 Intake channel

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B01D 29/08 530D 540A

Claims (3)

[Claims] 1. A filter and a filter layer are provided inside a water tank which is set up floating on the water surface by the buoyancy of a floating body, external water introduced into the water tank is passed through the filter and the filter layer in this order, and water after passing through the filter layer is removed. In the floating purifying water tank that discharges to the outside, an intake channel for introducing external water into the upper part of the water tank is provided, and the filter is configured such that the introduced water flows from top to bottom through the filter layer in the water tank. A floating purification tank that is arranged at the top. 2. A filter layer is provided inside a water tank which is set up floating on the water surface by the buoyancy of the floating body, external water introduced into the water tank from the bottom opening of the water tank is passed through the filter layer, and water after passing through the filter layer is discharged to the outside. In the floating type purified water tank that pumps water, an outer frame is provided outside the water tank so as to be immersed in water to create an intake channel between the tank and the water tank, and the intake channel is provided between the upper end of the outer frame and the peripheral wall of the water tank. A filter is attached to this inlet portion as an inlet of the tank, and external water is filtered by the filter, flows into the intake channel, and reaches a bottom of the water tank from a gap created between the bottom of the water tank and the outer frame. A floating purifying water tank characterized by the following. 3. A water separation tank for taking in water after passing through the filtration layer is added to the inside of the water tank, and the water flowing into the water separation tank is pumped out of the water tank by a pump. The floating purification tank described.