JPS62193608A - Filter - Google Patents

Abstract

PURPOSE:To excellently carry out liq.-solid separation and to keep the liq. in a liq. vessel clean by dropping a liq. mixed with solid matter while rotating the liq. on a conical filter. CONSTITUTION:A pump 13 is driven, the water collected on the bottom of a tank filter 2 is sucked up, a part of the water is sent to a water vessel 1 through a pipe 14, and a pat of the water is sent to a nozzle 15 provided on the cylindrical part of a water receiving plate 7 and injected in the direction tangential to the cylindrical pat from the nozzle 15. The water overflowing a partition plate 3 from the water vessel 1 is poured onto the flat surface 4 of the water receiving plate 7, and dropped from the clearance 12 between a feed control cylinder 11 and the cylindrical part 5. The dropped water is rotated along with water current rotated by centrifugal force, and flows on a conical filter 8. The water passes through the pore of the filter and is discharged to the outside of the filter. The solid matter is dropped into a discharge port 9, and is discharged to the outside of the filter through a discharge pipe 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a filtration device, and particularly to a filtration device comprising a liquid tank and a filter tank.

[Conventional technology and its problems]

A liquid tank and a system that separates solid matter, dirt, impurities, etc. mixed into the liquid in this liquid tank from the liquid, and circulates the filtered liquid back to the liquid tank to keep the liquid in the liquid tank clean at all times. In a conventional filtration device equipped with a filtration tank, for example, a liquid mixed with solids is poured into a stainless steel filter having a mesoche structure, and the solids are separated by this filter.

In such a filtration device, there is a problem in that filtered solids and the like accumulate in a portion of the filter over time and clog occurs in the mesh, impairing the flow of liquid.

[Purpose of the invention]

An object of the present invention is to provide a filtration device that solves the above-mentioned problems.

[Structure of the invention]

The present invention provides a filtration device comprising a liquid tank, a filtration tank, means for supplying liquid from the liquid tank to the filtration tank, and means for returning the filtered liquid to the liquid tank, wherein the filtration tank has at least a cylindrical shape. The liquid receiver is a plate, the liquid receiver is provided on the underside of the plate, and the liquid receiver is provided with a conical filter having a number of holes on the side and a discharge port at the bottom. and means for jetting liquid along the cylindrical part to form a rotating liquid stream.

〔Example〕

FIG. 1 is a diagram showing an embodiment of the filtration device of the present invention,
FIG. 1(a) is a front view, FIG. 1(b) is a plan view, and FIG. 1(C) is a sectional view taken along the line AA' in FIG. 1<a>.

This filtration device is a combination of an aquarium 1 and a filtration tank 2. Partition plate 3 between water tank 1 and filter tank 2
It is separated by. The upper part of this partition plate 3 is formed in a stepped shape, and water overflowing from the water tank 1 is poured into the filter tank 2 through the lower part.

The filter tank 2 includes a flat part 4 that receives the water poured from the water tank 1, and a cylindrical part 5 that rotates the water by receiving the water jet.
A plate 7 is provided as a water receiver consisting of a filter support part 6 that supports a filter, which will be described later. In this water receiver, a conical filter 8 is supported on a filter support part 6 of a plate 7, and an opening 9 is provided at the lower part of the conical filter, that is, at the tip of the cone, and a discharge pipe 10 is provided in this opening 9. connected.

The water receiver is on the top of the plate 7, and the water receiver is coaxial with the cylindrical part 5 of the plate.
Although not shown, a feed rate limiting cylinder 11 is fixed to the wall of the filter tank 2 by suitable means.

Since the radius of this cylinder 11 is smaller than the radius of the cylindrical part 5 of the plate 7, there is a gap 1 between the cylindrical part 5 and the cylinder 11.
2 is formed.

A pump 13 is provided at the bottom of the filtration tank, and a discharge pipe 14 of this pump is connected to an injection port 15 provided in the water tank 1 and the cylindrical portion 5.

FIG. 2 is a perspective view of the water receiver to help understand the structure of the plate 7 and the conical filter 8.

In the water receiver, the cylindrical portion 5 of the plate 7 is provided with an injection port 15 as described above, and this injection port opens toward the tangential direction of the cylindrical portion 5.

The conical filter 8 has a large number of holes 16 in a conical metal plate.
These filters are arranged in a row, and can separate solids from water. The structure of the filter is not limited to this, and may be mesh-like.

Next, the operation of this embodiment will be explained.

It is assumed that a water tank 1 is filled with water containing solid matter, dirt, impurities, etc., and water overflowing from the water tank 1 is collected at the bottom of the filter tank 2.

When the pump 13 is driven, the pump 13 sucks up the water accumulated at the bottom of the filtration tank 2 and returns it to the water tank 1 via the pipe 14. At the same time, a portion of the water is also transferred to the plate 7 via the pipe 14.
to the injection port 15 provided in the cylindrical portion 5'' of the injection port 1.
5, spray vigorously in the tangential direction of the cylindrical part. Water rotates vigorously along the cylindrical portion 5 due to centrifugal force.

On the other hand, water that overflows the partition plate 3 from the water tank 1 is poured into the flat part 4 of the water receiving plate 7. The poured water falls from the gap 12 between the supply amount limiting cylinder 11 and the cylindrical part 5. In this way, water falls through the gap 12, so even if a large amount of water is poured into the filter tank 2 from the water tank 1 at once, the water will flow through the flat part 4 of the plate 7, the cylinder 11, and the filter. There is no risk that a large amount of water will collect in the space surrounded by the outer wall of the tank and be sent to the conical filter 8 at once.

This allows the filter to perform stable filtration as described later. It will be appreciated that the cylinder 11 thus serves to limit the amount of water supplied to the filter.

As described above, the water flow that rotates due to centrifugal force is formed in the cylindrical portion 5, so the water that falls from above is dragged along by the water flow and rotates together with the water flow.

Thereafter, the water flows down the conical filter 8 while rotating. At this time, water passes through the holes 16 of the filter and is discharged to the outside of the filter. In this case, since centrifugal force is applied to the water, draining the water using the filter is much better than simply pouring water over the filter.

On the other hand, solids and the like that are larger than the holes 16 of the filter flow down on the filter together with the rotating water. As mentioned above, since the water is drained by the filter 8, when it gets close to the outlet 9, it becomes almost only solid matter, etc., and falls into the outlet 9. The filtered solids and the like are taken out of the filtration device through the outlet 10.

The water filtered by the conical filter 8 accumulates at the bottom of the filtration tank 2, is sucked up by the pump 13, and is returned to the water tank 1.
A part of the water is returned to the filter tank 2 and is injected through the injection port 15 of the filtration tank 2.

As is clear from the above examples, the water overflowing from the aquarium 1 is purified by removing solids etc. in the filtration tank 2, and then
Since the water is returned to the aquarium 1, the water in the aquarium 1 is always kept clean.

In the above embodiment, the aquarium 1 and the filter tank are integrated, but they do not need to be integrated and may be provided separately.

In this case, if the aquarium and filtration tank are at the same height, the aquarium and filtration tank can be connected by a pipe that sends water overflowing from the aquarium to the filtration tank, and a pipe that returns filtered water to the aquarium. It is necessary to connect the

If the water tank is located higher than the filter tank, the head can be used to forcefully spray water from the injection port 15 of the filter tank. In this case, the pump 13 will be used only to return purified water to the aquarium.

Further, in this case, it goes without saying that the supply amount limiting cylinder 11 does not need to be provided above the slope 7.

Various types of filtration devices as described above can be applied. For example, in combination with a heat exchanger, you can use it as a live fish tank.
Alternatively, it can be used as a cold salt water treatment machine for preserving the freshness of foods and thawing frozen foods.

In addition, although the above-mentioned example explained the separation of water and solid matter, etc., it goes without saying that the present invention can be applied to the separation of liquid and solid matter, etc. in general.

〔Effect of the invention〕

As explained above, according to the filtration device of the present invention, the liquid mixed with solids, etc. is dropped while rotating on the conical filter in which many holes are formed, so that the liquid and the solids, etc. are separated. It has the excellent effect of being able to perform the separation extremely well and keeping the liquid in the liquid tank extremely clean.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a perspective view of a water tray and a conical filter. 1... Water tank 2... Filtration tank 3... Partition plate 7... The water receiver is plate 8... Conical Filter 10...Discharge pipe 11...Cylinder for supply limit 13...Pump 15...Injection port

Claims (1)

[Claims] (1) A filtration device comprising a liquid tank, a filtration tank, a means for supplying liquid from the liquid tank to the filtration tank, and a means for returning the filtered liquid to the liquid tank, wherein the filtration tank has at least a cylindrical portion. A liquid receiving plate having a cylindrical portion, a conical filter provided on the underside of the liquid receiving plate and having a number of holes on the side and a discharge port at the bottom, and a liquid flow rotating along the cylindrical portion of the liquid receiving plate. and means for injecting a liquid along a cylindrical portion to form a filtration device.