JP3159037B2 - Water purification device using circulation pump - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to rivers, lakes, ponds, and ponds.
Purifying water using a circulating pump that can reverse the water quality
The present invention relates to a quality purification device.

[0002]

2. Description of the Related Art Conventionally, a circulating pump used in a water purification device is provided with an automatic valve in a pipe on a suction side and a pipe on a discharge side, and a reversible circulating pump for switching a suction and discharge direction by switching this valve. There was. Further, as a purification device for pond water or the like, for example, as described in Japanese Utility Model Publication No. 5-15984, a fountain jetted from a fountain device provided at a central portion is supplied to a treatment tank provided at a peripheral portion thereof. There is also known an apparatus that allows water to pass therethrough for filtering raw water and decomposing organic substances.

[0003]

However, in the case of the conventional circulating pump, it is necessary to switch a large number of valves in order to rotate the pump forward and backward.
Further, in the above-mentioned conventional purification device, aeration of raw water by a fountain and purification of raw water in a treatment tank can be performed, but raw water supplied to the treatment tank is limited to water falling from the fountain. , Large-capacity processing was difficult. When clogging occurs in the filter medium, there is a possibility that even if the filter medium is washed with a drainage pump, the washing water is dispersed and clogging substances attached to the filter medium cannot be removed. This invention uses循<br/> ring pump suitable for water purification device, and an object thereof is to provide a water purification device purifying ability can be maintained.

[0004]

Means for Solving the Problems The configuration of the invention, the forward and reverse
A filtration tank is installed around the circulating pump,
Water purification by connecting the circulating pump with the treated water chamber at the bottom of the tank
In the apparatus, the discharge pipe of the circulation pump has a plurality of discharge ports.
And a suction port is provided in the pumping pipe below this discharge port, and the discharge port
Check valve that can be opened and closed outward on the outside, and can be opened and closed on the inside of the suction port
And a trough above the filtration tank.
And submerge the bottom of this trough to correct the circulation pump.
To discharge the treated water from the filtration tank into the trough,
Reverse the pump to suck raw water such as pond water flowing from the trough
And backwash the treated material in the filtration tank,
The improvement and the continuation of the purification function can be achieved.

A ballast tank is provided around the filtration tank.
And a water supply / drainage pump is arranged in this ballast tank.
Suspended matter in raw water adheres to treated material with the duration of purification
Or the water purification device sinks due to the infestation of microorganisms.
When possible, the sink depth of the filtration tank is fixed by a water supply / drain pump
And mounted on the ballast tank
-Supply air to the treatment material in the filtration tank from
Activating microorganisms to accelerate the decomposition of organic matter
It is.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A circulating pump used in a water purification apparatus of the present invention, when a built-in submersible motor is rotated forward,
The water that has flowed into the suction bell and transferred to the water pump presses the check valve of the discharge port outward, and gushes from the discharge port. And
When the submersible motor is reversed, the water in the pumping pipe is transferred to the suction bell, raw water such as pond water tries to flow into the pumping pipe of the circulation pump, and the check valve at the discharge port is pushed by the water flow and is closed,
At the same time, the check valve of the suction port is opened inward, so that water can flow into the pumping pipe from the suction port and flow back.

[0007] In the water purification apparatus of the present invention, when the circulation pump provided in the water purification apparatus is rotated forward , the treated water at the bottom of the filtration tank is suctioned by the circulation pump. is sucked into the bell, at the same time, the raw water flows into the filter tank, suspended solids in the raw water are captured by the treatment material, organic material flowing down the process material during while being decomposed by biological treatment. The treated water sucked by the circulation pump flows from the outlet of the pumping pipe to the trough.
It is injected and discharged through a trough into pond water and the like. Eventually, when clogging occurs in the treated material, if the circulation pump is reversed, the water flow will be opposite to the purification direction, and the raw water will be troughed.
And water is drawn into the circulation pump from the suction port of the water pipe.
It is. The water flow that is made to flow backward can wash away suspended matter trapped in the treatment material and microorganisms that have become enlarged and peeled off.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described in detail. In FIG.
The pump casing 2 of the circulating pump 1 has a suction bell 3 at a lower portion of the pump casing 2 and a pumping pipe 4 at an upper portion thereof.
And are connected. The pump casing 2 is provided with a submersible motor 5 that can be rotated forward and backward.
Is suspended to the suction bell 3.
A plurality of discharge ports 7 are provided on the side wall at the upper end of the pumping pipe 4, and the discharge ports 7 are provided with check valves 8 that can be opened outside the pumping pipe 4, respectively. Is rotated forward, the pumped water is discharged by the outlet 7
The check valve 8 is opened to blow out into raw water such as pond water. The pumping pipe 4 below the discharge port 7
Are provided with a plurality of suction ports 9, and each of the suction ports 9 is provided with a check valve 10 which can be opened inside the pumping pipe 4. And when the impeller 6 is reversed,
The water pressure of the pumping pipe 4 of the circulation pump 1 becomes negative pressure, raw water such as pond water is sucked, and the water flow causes the check valve 8 at the discharge port 7.
Is closed, and the check valve 10 of the suction port 9 is opened inward, so that the raw water flow can flow back. In addition, the suction port 9
May be increased and only one location may be provided.

Next, a water purification apparatus using the circulation pump 1 of the present invention will be described in detail with reference to FIG.
Is a filtration tank having concentric side walls, and the filtration tank 11
A treatment material 13 such as charcoal or zeolite is stored between support plates 12.12 having water holes. A raw water chamber 14 is provided at an upper part of the filtration tank 11, an inlet 15 of raw water such as pond water is provided at an outer peripheral wall of the raw water chamber 14, and a treated water chamber 16 is provided at a lower part of the filtration tank 11. is there. And filtration tank 1
The raw water flowing from the inlet 15 at the upper part of the
From the processing material 13, suspended matter is captured by the processing material 13, and organic matter is decomposed by microorganisms.
6 to flow down.

The cylindrical chamber 17 surrounded by the inner peripheral wall of the filtration tank 11
Is provided with the circulating pump 1 described above,
Is connected to the suction bell 3 of the circulation pump 1
8 are connected. The bottom plate 19 of the treated water chamber 16 is inclined from the outer peripheral wall of the filtration tank 11 toward the center,
Due to the suction force of the circulation pump 1, the water flow flows down the entire processing material 13, and the mud accumulated on the bottom plate 19 of the treatment water chamber 16 is easily discharged in the direction of the circulation pump 1. The discharge port 7 provided in the water pump 4 of the circulating pump 1 is disposed on the water surface, and the suction port 9 below the discharge port 7 is disposed toward the cylindrical chamber 17 below the water surface. The top of the filtration tank 11, as shown in FIGS. 2 and 3, it is immersed in the bottom under water double
A number of troughs 20 are provided radially so that raw water such as pond water flows into the cylindrical chamber 17. The treated water spouted from the discharge port 7 of the circulation pump 1 is received by the trough 20,
The water is discharged to the outside of the water purification device A. When the processing material 13 is clogged, if the submersible motor 5 is rotated in the reverse direction, the raw water or the processing water stored in the cylindrical chamber 17 is sucked into the circulation pump 1 from the suction port 9 of the water pump 4,
At the same time, raw water such as pond water is supplied to the cylindrical chamber 17 through the trough 20. Then, the raw water flow is opposite to the purification direction, and this water flow causes the processing material 13 from the processing water chamber 16 of the filtration tank 11 to flow.
Is supplied with washing water, so that clogging can be washed away by the upward flow.

Reference numeral 21 denotes a ballast tank provided on an outer peripheral portion of the filtration tank 11.
A water supply / drainage pump 22 is provided to keep the immersion depth of the water purification device A constant. In the filtration tank 11, the suspended matter in the raw water adheres to the treatment material 13 with the purification continuation time, or
When the water purification device A sinks due to the infestation of microorganisms, if the water in the ballast tank 21 is drained by the water supply / drain pump 22, the depth of the filtration tank 11 can be corrected.
An air diffuser 23 is provided in the treatment water chamber 16 of the filtration tank 11, and air is supplied from a compressor 24 mounted on the balance tank 21 to below the treatment material 13, and the treatment material 1
Activate the microorganisms that inhabit 3 and promote the decomposition of organic matter. In addition, a water quality detection device (not shown) for pond water or the like is provided, the retention time of raw water in the treatment tank that is optimal for water quality conditions is set, and the circulation pump 1 is used as a variable pump to control the rotation of the pump. Alternatively, the circulating water amount may be adjusted by changing the outflow area of the discharge port 7 of the circulation pump 1. An isolite layer 25 for planting is provided on the side of the drainage trough 20 provided above the circulation pump 1, and treated water jetted from the discharge port 7 of the circulation pump 1 is supplied from the drainage trough 20 to the isolite layer 25. This may be done.

[0012]

As described above, the circulating pump according to the present invention has the discharge port and the suction port 9 provided on the pumping pipe in the outside and inside.
A check valve that can be opened and closed
If the filter is turned forward, the treated water in the filter tank will turn from trough to pond water.
Water is discharged, and pond water is circulated and purified to purify water quality. Circulation
If the ring pump is reversed, the trough with the bottom submerged
Raw water such as pond water is sucked by the circulation pump and flows backward.
Floats trapped in the processing material and enlarged and peeled off due to
Improves the purification ability of the processing materials by washing out microorganisms and purifying equipment
Noh can be maintained. And the circulation pump
Water purification system using water supply and drain pump installed in filtration tank
It is provided with the ballast tanks, Tomo and purification duration
Even if the filter tank sinks, the immersion depth of the filter tank should be kept constant.
Can be. In addition, the compressor mounted on the ballast tank
Air is supplied to the filtration tank from
Activate microorganisms and accelerate the decomposition of organic matter.
it can.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a circulating pump capable of normal and reverse rotation according to the present invention.

FIG. 2 is a vertical sectional side view of a water purification apparatus using a forward / reverse circulating pump according to the present invention.

FIG. 3 is a plan view of the water purification apparatus according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Circulation pump 2 Pump casing 3 Suction bell 4 Pumping pipe 5 Submersible motor 7 Discharge port 8 Check valve 9 Suction port 10 Check valve 11 Filtration tank 13 Treatment material 16 Treatment water chamber 20 Trough 21 Ballast tank 22 Supply / drain pump 24 Compressor A Water purification device

Claims (2)

(57) [Claims] 1. Filtration on the periphery of a circulating pump 1 that can be rotated forward and backward
A tank 11 is provided, and a treated water chamber 16 below the filtration tank 11 is provided.
And the water purification device in which the circulation pump 1 is communicated,
The riser pipe 4 of the circulation pump 1 and a plurality of outlets 7 ..., the inlet 9 to the riser pipe 4 below the discharge port 7 provided, the discharge port
7 has a check valve 8 which can be opened and closed outward, and a suction valve 9 has an open inside.
A check valve 10 that can be closed is provided, and
The trough 20 is provided radially on the upper part of the
The bottom is submerged, the circulation pump 1 is rotated forward, and the filtration tank 11 is rotated.
Of treated water is discharged onto the trough 20, and the circulation pump 1 is reversed.
And sucks raw water such as pond water flowing from the trough 20
A water purification apparatus using a circulation pump, wherein the treatment material 13 in the filtration tank 11 is backwashed . 2. A ballast tank 21 is provided around the filtration tank 11.
And a water supply / drain pump 22 is attached to the ballast tank 21.
To maintain the immersion depth of the filtration tank 11
From the compressor 24 mounted on the tank 11 to the filtration tank 1
Air is supplied to the processing material 13 to accelerate the decomposition of organic substances.
Water purification apparatus using the circulation pump according to claim 1, wherein the cause.