JPH0453567B2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention (1) Industrial application field The present invention circulates water stored in a bathtub or other water tank using a pump, and uses a filter tank arranged 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 Conventionally, 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 Maihan 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, the pump, and the activated stone tank are interposed in series in the middle of a circulating water circuit that connects a water inlet and a water outlet opening 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 in the above-mentioned conventional purification device has a sealed structure in which the inside is completely filled with water, and by sucking the water inside with a pump, negative pressure is created. It is designed to generate water in the bathtub and take in water from the bathtub. 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. As a result, the liquid level in the filter tank may gradually drop. Furthermore, when the pump sucks air together with water from the bathtub, the 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.
Each time, I had to remove the cap and replenish water to the top of the filter tank to make sure there was no air space.

Therefore, in order to avoid such inconvenience, air is vented from the inside of the filter tank, the inside of the connecting pipe between the pumps, and the upper part of the filter tank, as disclosed in Microfilm of Utility Model Application Publication No. 179010/1983. A system has already been proposed in which the air in the filter tank is forcibly discharged using only the suction force of the pump, without the need for special water replenishment into the filter tank by connecting them to each other via pipes. In the proposed method, in order to suction and discharge all the accumulated air in the filter tank without replenishing the tank with water when the pump is started, it is necessary to use a special pump with strong air suction force and low pump loss. Such special pumps are not only more expensive than pumps conventionally used in this type of purification equipment;
Although there are problems such as high operating noise and a relatively short service life, the above proposal has the problem that once the accumulated air in the filter tank is discharged by starting the pump (after that discharge, the conventional ordinary pump is used). Although there is no problem with water circulation even when used, there is an inconvenience that the special pump with the above problem must be continued to be used as is.

The present invention has been made in view of the above-mentioned circumstances, and allows the air accumulated in the upper part of the filter tank to be easily discharged without replenishing water into the tank using a conventional ordinary pump, so that the pump can be reused. It is an object of the present invention to provide a purifying device for water stored in a water tank that can be started accurately.

B. Structure of the invention (1) Means for achieving the object 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 a water tank. The filter tank is divided into a dirty chamber and a clean chamber with a filter in between, 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, the device is connected to the pump through the filter tank, and the second pipe line and the upper part of the filter tank are connected by an air vent pipe. A first feature of the present invention is that it includes a vortex generating member that generates a vortex in the water flow in the second duct upon activation of the pump, which can be sucked into the second duct through the air vent pipe.

In addition to the first feature, the present invention provides a second 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 from the first pipe line to the filter tank, and the filter tank provided between the dirty chamber and the clean chamber is When passing through a filter, dust is removed and purified. The purified water is further returned to the water tank outlet from the second pipe through the pump.

When the pump is operated with air accumulated in the upper part of the filter tank and the liquid level lowered, the water remaining in the filter tank is first sucked into the pump through the second pipe, and at that time the vortex generating member As a result, a negative pressure is generated inside the second pipe and the air vent pipe due to the vortex generated in the second pipe. As a result, the air accumulated in the upper part of the filter tank is sucked into the second conduit side through the air vent pipe, and this air is discharged together with water from the water outlet into the water tank. This results in
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) Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.

1 to 3 show a first embodiment of the present invention. FIG. 1 is an overall view of the purifying device, FIG. 2 is an enlarged view of a portion of FIG. 1, and FIG. FIG.

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. Water intake port 5 provided
and the filter tank 2 via the first pipe line 6, and the filter tank 2 and the pump 3 via the second pipe line 7.
The pump 3 and the activated stone tank 4 are connected via a third pipe 8, and the activated stone tank 4 and the water outlet 9 of the bathtub 1 are connected via a fourth pipe 10.
The pipe line 6 to the fourth pipe line 10 constitute 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 using a thumbscrew. Inside the filter tank 2, there is a wire mesh 1 formed in a cylindrical shape, including 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.
5, and the upper and lower frames 13,
A filter 16 made of special fiber is disposed between the filters 14 and 14 . The filter 16 is formed into a cylindrical shape concentric with the container 11 and the wire mesh 15, and has a dirty chamber 17 and a clean chamber 18 on the outside and inside.
is defined.

The first pipe line 6 connecting the water inlet 5 of the bathtub 1 and the dirty chamber 17 of the filter tank 2 communicates tangentially with the side wall of the container 11, and the water introduced into the filter tank 2 flows clockwise when viewed from above. Forms a rotating water stream. 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 line 7,
There is a slot 19 inclined in the same direction as the water flow generated in the filter tank 2 by the first pipe line 6.
It is equipped with a. As a result, in conjunction with the action 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 bleed pipe 20 is fitted into the upper part of the vortex generating member 19, and this air bleed 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 is equipped with a bottomed cylindrical container 22 whose upper end is sealed with a cap 21 that can be attached or removed with a thumbscrew, and the inside of the container 22 has a cylindrical container 22 that activates the water quality. A large number of Maifan stones 23 for
An inner cylinder 24 containing the following is arranged concentrically. A third conduit 8 extending from the pump 3 connects to the bottom chamber 2 of the container 22.
5, and this bottom chamber 25 communicates with the inner cylinder 24 containing the Maifan stone 23 via a wire mesh 26. The upper opening of the inner cylinder 24 is connected to the container 22.
It communicates with a fourth pipe line 10 connected to the water outlet 9 of the bathtub 1 via a side chamber 27 formed between the inner cylinder 24 and the inner cylinder 24 .

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 1 into the outer dirty chamber 17 via the first pipe line 6 passes through the filter 16. It flows into the inner clean chamber 18 with dust removed. Water in the clean chamber 18 flows into the second pipe line 7 through the upper end of the air vent pipe 20 and the slit 19a of the vortex generating member 19, and from there flows into the second pipe line 7.
The activated stone is introduced into the activated stone tank 4 via the pipe line 8. When passing through the inner cylinder 24 of the activated stone tank 4, the Maifan stone 3
The activated water overflows from the upper end of the inner cylinder 24 and further flows back to the water outlet 9 of the bathtub 1 via the fourth pipe.

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 in the upper part, the first pipe line 6 connected tangentially to the filter tank 2 A rotating water flow is generated in the filter tank 2 by the inflowing water.
Furthermore, the water in the filter tank 2 flows into the vortex generating member 1.
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 inside of the second 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 upper end of the air vent pipe 20.
The liquid is sucked into the pipe line 7, 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 bleed pipe 20.

At this time, water is supplied to the activated stone tank 4 from the lower end, and the fourth pipe line 10 connected to the bathtub 1 is opened at the upper end, so even if the liquid level drops, the pump 3 The liquid level can be raised automatically at the same time as startup.

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

As shown in FIG. 4, the upper opening is the cap 28.
The inside of the cylindrical container 29 with a bottom is sealed with a cylindrical partition wall whose lower end contacts the lower inner periphery of the container 29 and whose upper end contacts the upper inner periphery of the container 29 via the lid member 30. 31 into an outer filter tank 2 and an inner activated stone tank 4. The filter tank 2 is the same as the filter 1 in the previous embodiment.
The outer dirty chamber 17 is divided into a dirty chamber 17 and a clean chamber 18 via the first pipe 6.
While connecting to the water intake port 5 of the bathtub 1 via
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 pipe line 7 and the air vent pipe 20 is made by curving a plate material into a cylindrical shape and forming a slit 33a between the opposing parts. from the horizontal part 7a of the second pipe line 7 to the slit 3.
3a and is configured to generate a strong vortex in the water flowing into the vertical portion 7b.

The pump 3 has Maifan stone 2 inside it via the third pipe line 8.
The lower end of the side chamber 27 formed between the inner cylinder 24 and the partition wall 31 is connected to the water outlet of the bathtub 1 via the fourth pipe line 10. Connected to 9. In addition, the side chamber 2
A heater 34 is installed at the bottom of the tank 7 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, water sucked from the water intake port 5 of the bathtub 1 flows through the first pipe line 6, the filter tank 2, and the second pipe, as in the previous embodiment.
The water is returned to the water outlet 9 of the bathtub 1 via the pipe 7, the pump 3, the third pipe 8, the activated stone tank 4, and the fourth pipe 10, and the filter 16 and the barley stone 23 are
This purifies and revitalizes water.

Then, as shown in Fig. 4, the filter tank 2
When pump 3 is started when the liquid level of
First, the water in the filter tank 2 passes through the vortex generating member 33 installed in the second pipe line 7, and the air accumulated in the upper part of the filter tank 2 is removed by the negative pressure caused by the vortex generated at that time. and is sucked into the second pipe line 7. As a result, the liquid level in the filter tank 2 quickly rises, and the inside of the filter tank 2 is soon completely filled with water.

According to this second embodiment, since the activated stone tank 4 is disposed inside the filter tank 2,
It becomes possible to form the purification device C compactly.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and may be modified without departing from the scope of the invention described in the claims. It is possible to do this.

For example, this purification device C can be used not only for purifying the water in the bathtub 1, but also for purifying the water stored in other aquariums.
can be omitted.

C. Effects of the Invention As described above, according to the first feature of the present invention, even if the pump is started in a state where air has accumulated in the upper part of the filter tank and the liquid level has decreased, the vortex generating member will cause the second pipe to With the suction effect of the eddy current generated in the passage,
Since the accumulated air in the upper part of the filter tank can be actively sucked and discharged to the second pipe side through the air vent pipe, there is no need to specially replenish water into the filter tank as in the conventional method, or Even without using a special pump with strong air suction power and low pump loss, you can easily and reliably discharge the air accumulated in the filter tank when the pump is started, preventing the pump from idling, and ensuring that the water in the aquarium is pumped through the filter. It can be installed inside the tank.

Moreover, there is no need to use the special pump for discharging the accumulated air; in other words, a conventional pump can be used, which contributes to cost savings, reduction of pump operation noise, and extension of pump life. I can do it.

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. FIG. 1 is an overall view of the purifying device, FIG. 2 is an enlarged view of a portion of FIG. 1, and FIG. 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 sectional view taken along the line - of FIG. 4. be. 1... Bathtub (water tank), 2... Filter tank,
3... Pump, 4... Activated stone tank, 5... Water inlet, 6... First pipe, 7... Second pipe, 9... Water outlet, 16... Filter, 17... Dirty room ,
18... Clean room, 19... Eddy current generating member, 2
0... Air vent pipe, 33... Eddy current generating member.

Claims (1)

[Scope of Claims] 1 A filter tank 2 and a pump 3 are installed in a circulating water circuit connecting a water inlet 5 and a water outlet 9 that are open to a water tank 1, and the filter tank 2 is provided with a filter 16 in between. Dirty room 17 and clean room 18
This dirty chamber 17 is the first
A clean chamber 18 is connected to the water inlet 5 of the water tank 1 via a pipe line 6, and a clean chamber 18 is connected to the pump 3 via a second pipe line 7, and the second pipe line 7 and the upper part of the filter tank 2 are connected to the air. In the purification device for water stored in an aquarium, which is connected by a vent pipe 20, the air remaining in the upper part of the filter tank 2 is removed from the air vent pipe 2.
Purification of water stored in an aquarium, characterized by comprising vortex generating members 19 and 33 that generate a vortex in the water flow in the second pipe 7 when the pump 3 is started, which can be sucked into the second pipe 7 through 0. Device. 2. The filter tank 2 according to claim 1, wherein the filter tank 2 is formed into a cylindrical shape, and an activated stone tank 4 interposed between the pump 3 and the water outlet 9 of the water tank 1 is disposed in the inner space of the filter tank 2. A purification device for water stored in an aquarium.