JPH027610Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dust removal device suitable for a circulation purification device used in a bathtub, a swimming pool, or the like.

BACKGROUND ART In bathtubs, pools, and the like where many people take a bath, a circulation purification device is installed in order to constantly purify water or hot water that is contaminated with hair and other substances.

FIG. 1 shows the circulating purification device, which purifies the hot water in the bathtub A. The hot water in bathtub A near the surface (most of the hair and dirt is floating on the surface) is sucked by pipe _B1 , and the sucked hot water is sent to dust remover C.
The dust is removed by the pump P through the pipe _B2 , discharged into the pipe _B3 , and flows into the filter device D. The hot water is further filtered and purified while flowing downward through the filtration device D, and the hot water discharged from there flows back into the bathtub A via the pipe _B4 . E is an air bleed valve provided at the top of the filter device D.

Dust removal device C used in this circulation purification device
is constructed as shown in FIG. That is,
An inlet 1a is provided in the upper wall of the bottomed cylindrical container 1 to form a pipe connection part 2, an outlet 1b is provided in the lower wall to form a pipe connection part 3, and the inside is provided with a collar 1c. A bottomed cylindrical metal net 4 is suspended with the upper surface open, and the inlet 1 is connected to the metal net 4 by the metal net 4.
Hair, dirt, and other dust (hereinafter simply referred to as dust) flowing into the hot water bath are collected from the bath water, and the purified hot water is sucked out from the outlet port 1b. 5 is a lid for sealing the inside.

By the way, the hot water in the bathtub A contains a large amount of bubbles (air), and these bubbles also flow into the dust removal device C. In particular, when a heavily contaminated surface of hot water is sucked in as described above, the surface level fluctuates and a large amount of air is sucked in along with the hot water.

However, in the dust removal device C, since the air is light, it stays in the upper part and is difficult to flow out from the lower outlet port 1b. Therefore, when this air fills the dust remover C and there is no hot water, the pump P runs idle and its suction force is no longer able to suck the air, and the hot water in the bathtub A is also sucked. The problem is that it is no longer possible to do so.

Therefore, it is conceivable to communicate the air with the outside air in order to remove this air, but since the pump P is provided on the side of the outlet 1b and reduces the pressure inside the dust removing device, the air cannot be removed. In addition, since the hot water that has flowed into the inlet 1a goes straight to the outlet 1b, the dust from the hot water is concentrated in the metal net 4 near the outlet 1b, which tends to clog the metal net 4. It is necessary to perform cleaning etc. frequently.

The present invention was developed in view of the above, and its purpose is to make it possible to extract the air accumulated inside the air while mixing it with the liquid inside.
To provide a dust removal device which prevents a large amount of air from remaining inside and prevents intensive clogging from occurring in a metal net.

Examples of the present invention will be described below. Third
The figure shows a dust removal device F according to one embodiment, and parts corresponding to those in FIG. 2 are given the same reference numbers.

In this embodiment, the outlet 1 formed in the cylindrical container 1 is
b is formed on the side wall located well below the bottom of the metal net 4, and a suction pipe 7 is inserted and attached thereto. This suction pipe 7 has a length such that its tip reaches the end opposite to the outlet 1b of the metal net 4, and has a length from its tip 7a to its base end 7b (a length approximately corresponding to the width at the bottom of the metal net 4). ), the lower side is cut diagonally, and a hole 7c as an elliptical long opening is formed diagonally in the axial direction.

Then, an air venting pipe 8 having a diameter of about 1/5 of the diameter of the suction pipe 7 is placed so that the upper end 8a reaches the bottom of the lid 5 and the lower end 8b is inside the suction pipe 7 and faces the suction side. It is provided along the outside of the metal net 4. To attach it, a notch is formed in a part of the inner collar 1c of the cylindrical container 1, and the notch is attached thereto by welding or the like.

In this dust removal device F, the hot water above the cylindrical container 1 goes around to the bottom of the suction pipe 7 and then is sucked into the obliquely oval hole 7c. Therefore, vertical agitation (convection circulating in the vertical direction) occurs.

Moreover, in this suction pipe 7, the suction is performed from the base end 7b side, so in the lower hole 7c formed by cutting, the base end 7b part where the suction force is large is small and the suction resistance is large, and the suction Since the tip 7a where the force is small is large and the suction resistance is small, the suction force is approximately uniform in the axial direction, and the vertical stirring is approximately uniform in the axial direction.

Therefore, air in the liquid tends to rise and is easily collected in the upper part. Furthermore, the dust adhering to the bottom of the metal net 4 due to the suction force is also stirred upwards, and eventually the light dust gathers at approximately the center of the top and becomes round.

Therefore, the collected dust H can be removed by opening the lid 5 and scooping it with a net with a handle. Therefore, clogging is reduced, and the metal net 4 only needs to be cleaned when heavy dust accumulates on the bottom, eliminating the need to frequently remove the metal net 4. Also, there is no need to use a powerful suction pump.

In this way, in this dust removing device F, the internal dust is stirred, light particles float to the top, and air also tends to stay in the top. Further, since the hot water surface is brought under negative pressure by the pipe 8, air (including dissolved air) in the hot water is easily separated, further enhancing the above-mentioned collection effect.

The air stagnant in the upper part is sucked by the pipe 8 and is absorbed by the pump P together with the filtered hot water sucked from the pipe 7.

Therefore, the air remaining in the dust removal device F is successively sucked from the outlet 1b side, and a large amount of air does not stay inside.

Note that the air discharged from the dust removal device F in this manner is sent to the filter device D by the pump P, and then discharged to the outside by the air bleed valve E.

In addition, in the dust removal device F of the embodiment shown in FIG.
The pipe 8 can also be attached by directly connecting its lower end to the suction pipe 7. In this case, a hole large enough to fit the pipe 8 is formed in the pipe 7, and the pipe 8 is fixed so as to communicate with the hole.

As described above, according to the dust removal device of the present invention, the air collected in the upper part of the inside of the dust removal device is guided to the outlet through the thin air bleed pipe, where it mixes with liquid such as hot water. Since the liquid is sucked by the pump after the liquid has been removed, it is possible to prevent a large amount of air from staying inside, and also to prevent clogging of the metal net, eliminating problems such as being unable to suck the liquid. .

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a circulating purification device, FIG. 2 is a sectional view of a conventional dust removal device, and FIG. 3 is a sectional view of a dust removal device of the present invention. 1... Cylindrical container, 1a... Inlet, 1b... Outlet, 1c... Tsuba, 1d... Notch, 2, 3...
Pipe connection part, 4...Metal net, 5...Lid, 7
... Suction pipe, 8... Air bleeding pipe.

Claims (1)

[Scope of claim for utility model registration] A net with a bottom is loaded inside a sealed container,
In a dust removal device in which a liquid containing dust flows in from an inlet at the top of the container and is sucked by a pump from an outlet at the bottom, and dust is removed by the net, the upper end of the interior of the dust removal device and the outflow port are connected by a pipe having a diameter smaller than the diameter of the outflow port, and a suction pipe having a long mouth extending along the lower side of the net is provided at the outflow port. Characteristic dust removal equipment.