JPH03146105A - Device for purifying water stored in water tank - Google Patents

Abstract

PURPOSE:To restart a pump without feeding water under such conditions that air has accumulated in the upper section of a filter tank and the level of the water stored therein has fallen by discharging the air having accumutated in the upper section of the filter tank by use of a negative pressure caused by a vortex generating member. CONSTITUTION:A filter tank 2 and a pump 3 are provided in a circulation water line interconnecting a suction port 5 open to a water tank 1 and a delivery port 9. The interior of the filter tank 2 is divided into a dirty room 17 and a clean room 18 by means of a filter 16. A first line 6 interconnects the dirty room 17 and the suction port 5 of the tank 1, while a second line 7 interconnects the clean room 18 and the pump 3. And a vortex flow generating member 19 is provided in the second line 7 to generate vortex flow therein, while an air vent pipe 20 is provided to connect the line 7 with the upper section of the tank 2. As a result, even when the level of the water in the filter tank 2 falls, the pump can be restarted without feeding water.

Description

[Detailed description of the invention] A6 Purpose of the invention (1) Industrial field of application The present invention is directed to a method of circulating water stored in a bathtub or other water tank using a pump, and then using a filter tank disposed in a circulation path to circulate the water. The present invention relates to a purification device for water stored in an aquarium that purifies water by passing it through the tank.

(2) Conventional technology In the past, water in a household bathtub was circulated by a pump and purified by passing through a tank containing a filter or a tank containing activated stones such as maifan stone, and the water was purified for a long time. A purifying device that can be used for a long period of time without being replaced is known.

In such a purification device, the filter tank, pump, and activated stone tank are interposed in series in the middle of a circulating water circuit that connects a water inlet and a water outlet that open in the bathtub, and the water that is forcibly circulated by the pump is interposed in series. It is constructed so that it is purified by passing it through a filter tank and an activated stone tank in sequence.

(3) Problems to be Solved by the Invention By the way, the filter tank of the above-mentioned conventional purification device has a sealed structure in which the inside is completely filled with water, and by suctioning the water inside with a pump, negative pressure is created. The water in the bathtub is taken in by causing the water to flow. However, since the top of the filter tank is generally set higher than the liquid level in the bathtub, if the pump is stopped for filter replacement, etc., a small amount of air may enter from the cap at the top of the filter tank, causing the problem to occur. The liquid level in the filter tank may gradually drop. Furthermore, when the pump sucks air together with water from the bathtub, air may accumulate in the upper part of the filter tank and the liquid level may drop. If you restart the pump in this condition, the pump will eventually suck in air and run idly, making water circulation impossible.Remove the cap each time and replenish water to the top of the filter tank to fill the air layer. I had to make sure it wasn't.

The present invention has been made in view of the above-mentioned circumstances, and provides a purification device for water stored in a water tank that can restart the pump without replenishing water when the liquid level in the filter tank drops. The purpose is to provide.

B9 Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention provides a filter tank and a pump that are interposed in a circulating water circuit that connects a water inlet and a water outlet opening into an aquarium. The filter tank is configured to sandwich the filter into a dirty chamber and a clean chamber, and the dirty chamber is connected to the water intake port of the water tank via a first pipe, and the clean chamber is connected to the water intake port of the water tank via a second pipe. In the apparatus for purifying water stored in an aquarium connected to the pump via the second
The first feature is that a vortex generating member that generates a vortex in the water flow in the pipe is provided, and the second pipe and the upper part of the filter tank are connected by an air vent pipe.

In addition to the first feature, the present invention also provides a first feature in which the filter tank is formed into a cylindrical shape, and an activated stone tank is disposed in the inner space of the filter tank to be interposed between the pump and the water outlet of the water tank. 2.

(2) Effect According to the first feature of the present invention described above, by driving the pump, the water in the water tank is sucked into the filter tank from the first pipe line, and the filter tank is provided between the dirty chamber and the clean chamber. When passing through a filter, the particles are removed and purified.

The purified water further flows from the second pipe through the pump to the water tank outlet. When the pump is started with air trapped in the upper part of the filter tank and the liquid level lowered, the water remaining in the filter tank is first drawn into the pump through the second pipe, and at that time, water is generated in the vortex generating member. Negative pressure is generated inside the second pipe line due to the effect of the vortex flow. As a result, the air accumulated in the upper part of the filter tank is sucked through the air vent pipe connecting the second pipe line and the upper part of the filter tank, and this air is discharged together with water from the water outlet into the water tank. As a result, the liquid level in the filter tank quickly rises to the upper limit, and the water in the water tank is taken into the filter tank via the water intake port and the first pipe line.

According to the second feature of the present invention, the water that has passed through the filter tank further passes through the activated stone tank, making it possible to further improve the water quality. By disposing it inside the filter tank, the entire device can be made compact.

(3) Examples Hereinafter, the present invention will be described in detail based on the drawings.

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is an overall view of the purifying device, FIG. 2 is an enlarged view of the It is a sectional view taken along the line ■-■ in the figure.

As shown in FIG. 1, a purification device C for purifying the water stored in a bathtub 1 as a water tank is composed of a filter tank 2, a pump 3, and an activated stone tank 4. The provided water intake port 5 and the filter tank 2 are connected through the first pipe line 6, the filter tank 2 and the pump 3 are connected through the second pipe line 7, and the pump 3 and the activated stone tank 4 are connected through the third pipe line 8. The activated stone tank 4 and the water outlet 9 of the bathtub l are connected via a fourth pipe 10, and these first pipes 6 to
The fourth pipe line 10 constitutes a closed circulating water circuit.

The filter tank 2 includes a cylindrical container 11 with a bottom, the upper opening of which is sealed by a cap 12 which is detachable with a hinge. Inside the filter tank 2, an annular upper frame 13 that abuts the lower surface of the cap 12 and an annular lower frame 14 that abuts the bottom surface of the container 11 are held by a wire mesh 15 formed in a cylindrical shape. A filter 16 made of special fiber is disposed between the upper and lower frames 13 and 14. The filter 16 is connected to the container 11 and the wire mesh 1
It is formed into a cylindrical shape concentric with 5, and a dirty chamber 17 and a clean chamber 18 are defined on the outside and inside.

Water intake port 5 of bathtub 1 and dirty chamber 17 of filter tank 2
A first conduit 6 connecting the filter tank 2 tangentially communicates with the side wall of the container 11, and the water introduced into the filter tank 2 forms a water stream rotating clockwise when viewed from above. On the other hand, a vortex generating member 19 is attached to the upper end of the second conduit 7 extending from the center of the bottom wall of the filter tank 2 into the clean chamber 18 of the filter tank 2 . As is clear from FIGS. 2 and 3, the vortex generating member 19 is a short tubular member that fits into the upper end of the second pipe 7, and has four locations on its outer circumference that are connected to the first pipe 7. A slit 19a is provided which is inclined in the same direction as the water flow generated in the filter tank 2. As a result, combined with the effect of the rotating water flow generated in the filter tank 2 by the first pipe line 2, a strong vortex is generated inside the second pipe line 7, and negative pressure is generated. The lower end of an air vent pipe 20 is fitted into the upper part of the vortex generating member 19, and the air vent pipe 20 extends upward from the center of the filter tank 2 and opens into the upper space of the filter tank 2.

As shown in FIG. 1, the activated stone tank 4 includes a bottomed cylindrical container 22 whose upper end is sealed with a removable cap 21 with a hinge, and inside the container 22 is used to activate water quality. An inner cylinder 24 containing a large number of Maifan stones 23 is arranged concentrically. A third conduit 8 extending from the pump 3 is connected to a bottom chamber 25 of the container 22, and this bottom chamber 25 is filled with gold 1i.
It communicates with the inner cylinder 24 containing the Maifan stone 23 via 126. The upper opening of the inner cylinder 24 communicates with the fourth pipe line 10 connected to the water outlet 9 of the bathtub 1 via a side chamber 27 formed between the container 22 and the cylinder 240.

Next, the operation of the first embodiment of the present invention having the above-described configuration will be explained.

Under normal operating conditions, the inside of the filter tank 2 is completely filled with water, and the water introduced from the water intake port 5 of the bathtub l through the first pipe line 6 into the dirty chamber 17 on the outside passes through the filter 16. It flows into the inner clean chamber 18 with dust removed. The water in the clean chamber 18 is drained from the upper end of the air vent pipe 20 and from the vortex generating member 19) 19
a flows into the second pipe line 7, from where it is introduced into the activated stone tank 4 via the pump 3 and the third pipe line 8.

The water activated by contacting the maifan stone 3 while passing through the inner cylinder 24 of the activated stone tank 4 overflows from the upper end of the inner cylinder 24 and then flows through the fourth pipe to the water outlet 9 of the bathtub 1. Reflux to.

Now, as shown in FIG. 1, when the pump 3 is started with the liquid level in the filter tank 2 falling and air being accumulated at the top, an inflow flows from the first pipe 6 tangentially connected to the filter tank 2. A rotating water flow is generated in the filter tank 2 by the water generated.

Further, when the water in the filter tank 2 passes through the vortex generating member 9 and is sucked into the second pipe line 7, a strong vortex is generated by the action of the slit 19a inclined in the same direction as the water flow, and the second The inside of the pipe line 7 tends to have a negative pressure. As a result, the air accumulated in the upper part of the filter tank 2 is removed from the air vent pipe 20.
The liquid is sucked into the second pipe line 7 from the upper end of the filter tank 2, and the liquid level in the filter tank 2 quickly rises. In this way, the filter tank 2 is completely filled with water, after which water is introduced into the second conduit 7 from both the vortex generating member 19 and the air vent pipe 20.

At this time, water is supplied to the activated stone tank 4 from the lower end,
Moreover, since the fourth pipe line lO connected to the bathtub 1 is open at the upper end, even if the liquid level drops, the pump 3
The liquid level can be raised automatically at the same time as the start-up.

4 and 5 show a second embodiment of the present invention, FIG. 4 is an overall view of the purifying device, and FIG. 5 is a cross-sectional view taken along the line 1--v in FIG. 4. In this example, filter tank 2
This embodiment is characterized in that an activated stone tank 4 is disposed inside the embodiment, and in the figure, the same members as in the previous embodiment are given the same reference numerals.

As shown in FIG. 4, the inside of a bottomed cylindrical container 29 whose upper opening is sealed with a cap 28 is such that the lower end is closed to the container 29.
The upper end contacts the container 2 through the lid member 30.
The filter tank 9 is partitioned into an outer filter tank 2 and an inner activated stone tank 4 by a cylindrical partition wall 31 that abuts the upper inner periphery of the filter tank 9 . As in the previous embodiment, the filter tank 2 is divided into a dirty chamber 17 and a clean chamber 18 via a filter 16, and the outer dirty chamber 17 is connected to the water intake port 5 of the bathtub l via a first pipe line 6. In addition, the inner clean chamber 18 is connected to the pump 3 via the second pipe line 7. The upper end of the filter tank 2 and the middle of the second pipe line 7 are connected by an air vent pipe 20 disposed outside the filter tank 2 . As is clear from FIG. 5, the vortex generating member 33 provided inside the joint 32 that connects the second conduit 7 and the air vent pipe 20 is made by curving a plate material into a cylindrical shape and having a slit 33a between the opposing parts. It is configured to generate a strong vortex in the water flowing from the horizontal part 7a of the second pipe line 7 through the slit 33a and into the vertical part 7b.

The pump 3 communicates via a third pipe line 8 with an inner cylinder 24 of an activated stone tank 4 that stores Maihan stone 23 inside, and a side chamber 27 formed between the inner cylinder 24 and a partition wall 31. The lower end is connected to the water outlet 9 of the bathtub 1 via a fourth pipe 10. A heater 34 is installed at the lower part of the side chamber 27 to heat the water that has passed through the filter tank 2 and the activated stone tank 4 and whose temperature has decreased.

In this second embodiment, under normal operating conditions, as in the previous embodiment, the water sucked from the water intake port 5 of the bathtub l is
Water is returned to the outlet 9 of the bathtub 1 via the pipe line 6, filter tank 2, second pipe line 7, pump 3, third pipe line 8, activated stone tank 4, and fourth pipe line 10, during which the filter 16 and Maifan stone 23 purify and activate water.

As shown in FIG. 4, when the pump 3 is started with the liquid level in the filter tank 2 being lowered, the water in the filter tank 2 is first transferred to the vortex generating member 3 interposed in the second pipe line 7.
The air accumulated in the upper part of the filter tank 2 is sucked into the second pipe line 7 from the air vent pipe 20 by the negative pressure caused by the eddy flow generated at that time. As a result, the liquid level in the filter tank 2 quickly rises, and the inside of the filter tank 2 is eventually completely filled with water.

According to the second embodiment, since the activated stone tank 4 is disposed inside the filter tank 2, the purification device C can be made compact.

Although the embodiments of the present invention have been described above in detail, the present invention is not limited to the embodiments described above, and various small design changes may be made without departing from the scope of the invention described in the claims. It is possible to do so.

For example, this purification device C is not limited to purifying water in bathtub l;
It can also be used to purify water stored in other aquariums, and in that case, the activated stone tank 4 can be omitted if necessary.

C0 Effects of the Invention As described above, according to the first feature of the present invention, even if the pump is started with air accumulated in the upper part of the filter tank and the liquid level lowered, the negative pressure generated by the vortex generating member is maintained. Due to this action, the air accumulated in the upper part of the filter tank is discharged through the air bleed pipe.

As a result, even when water is replenished, the pump is reliably prevented from idling, so that the water in the aquarium can be reliably taken into the filter tank.

According to the second feature of the present invention, the water that has passed through the filter tank further passes through the activated stone tank, making it possible to further improve the water quality. By disposing it inside the filter tank, the entire device can be made compact.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is an overall view of the purifying device, FIG. 2 is an enlarged view of the The sectional view taken along the line ■--■, FIGS. 4 and 5 show the second embodiment of the present invention, and FIG. 4 is an overall view of the purifying device, and FIG. It is a sectional view taken along the V line. 1... Bathtub (water tank) 2... Filter tank, 3...
・Pump, 4...Activated stone tank, 5...Water intake, 6
... first pipe line, 7... second pipe line, 9... water outlet,
16...filter, 17...dirty chamber, 18...
・Clean room, 19... Eddy current generating member, 20... Air vent pipe, 33... Eddy current generating member Patent applicant Suisaku Co., Ltd. % formula %

Claims (2)

[Claims] (1) Water inlet (5) and water outlet (9) opening into the water tank (1)
) is installed in the circulating water circuit that connects the filter tank (
2) and a pump (3), the filter tank (2)
) is divided into a dirty chamber (17) and a clean chamber (18) with a filter (16) in between, and the dirty chamber (17) is connected to the water tank (1) through a first pipe (6). The clean room (18) is connected to the water intake port (5) and the second pipe (7)
In the purification device for water stored in a water tank connected to the pump (3) via a vortex generating member (19, 33) that generates a vortex in the water flow in the second pipe line (7), 2 pipe line (7) and the upper part of the filter tank (2) are connected to an air vent pipe (20
) A water purification device for water stored in an aquarium. (2) The filter tank (2) is formed into a cylindrical shape, and the pump (3) and the water tank (1) have water outlets (
9) The apparatus for purifying water stored in a water tank according to claim 1, further comprising an activated stone tank (4) interposed between the tanks.