JPH06165808A - Air bubble generator - Google Patents

Abstract

PURPOSE:To provide an air bubble generator which can surely generate fine air bubbles in a liquid storage tank by preventing the clogging of a cavitation generating member provided in an ejection port. CONSTITUTION:The ejection port 3 is provided on the side wall of a bath tub 1 and a through-hole 12 communicating the inside and outside of the ejection port 3 is formed in the upper part of the ejection port 3 exposed between this side wall and a net filter 11 of the ejection port 3. Consequently, the excess air introducing into the ejection port 3 is discharged from this through-hole 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used, for example, when air in the atmosphere is melted under pressure in hot water in a bathtub and then the hot water is fed again to generate fine bubbles in the bathtub. The present invention relates to a bubble generating device.

[0002]

2. Description of the Related Art Conventionally, in this type of bubble generating device, hot water is sucked from a bathtub and air is sucked from the atmosphere by a pump, and air is melted under pressure in the pump. A dissolving tank is provided between the pump and the bath in order to separate the air that has not been dissolved in the pump from the hot water. After the excess air and the hot water are separated in the dissolution tank, the hot water containing the dissolved air is discharged into the bathtub from the jet port provided in the bathtub. Therefore, fine bubbles are generated in the bath, and the hot water becomes opalescent. On the other hand, the surplus air separated in the dissolution tank is discharged to the outside of the device.

[0003]

However, in the above-described bubble generating device, there is a case where the surplus air is not discharged in the melting tank and the surplus air is mixed in the hot water pumped from the melting tank to the bath side. there were. In this case, the excess air is not discharged into the tub from the cavitation-generating net filter provided at the ejection port, but remains in the net filter. That is, since the mesh of the net filter is fine, undissolved excess air having large particles cannot pass through the net filter. If excess air continues to stay in the net filter, the passage of the hot water deteriorates, so that it becomes difficult for fine air bubbles to be generated in the bathtub, and the opacification of the hot water also decreases.

In addition, the net filter may be clogged with foreign matter such as scale. In this case, since the passage of hot water is deteriorated as in the above case, it is difficult for fine bubbles to be generated in the bathtub.

The present invention has been made in order to solve the above problems, and its purpose is to prevent clogging of a cavitation generating member provided at a jet outlet, and to reliably assure fine air bubbles in a liquid storage tank. An object of the present invention is to provide a bubble generating device capable of generating air bubbles.

[0006]

In order to achieve the above object, in the present invention, a liquid storage tank for storing liquid and having a suction port and a jet port, and a liquid storage tank from the suction port of the liquid storage tank A pump for sucking the liquid inside, a gas suction port that is connected between the suction port of the liquid storage tank and the pump, and sucks gas from the outside by the suction force of the pump; In a bubble generation device comprising a dissolution tank for inflowing a liquid and separating an undissolved surplus gas from the liquid, and discharging the liquid in which the surplus gas is separated into the bath from the ejection port, Is provided on the side wall of the liquid storage tank, and a cavitation generating member is provided on the opening end face of the ejection port, and the ejection port is provided above the ejection port exposed between the cavitation generation member and the side wall of the liquid storage tank. That it has a through hole for communicating the outside and the gist thereof.

[0007]

According to the above construction, when the pump is driven, the liquid is sucked into the pump from the suction port of the liquid storage tank,
The gas is sucked from the gas suction port. And
These are pressurized in the pump and the gas is dissolved in the liquid. Then, the gas and the liquid that have been pressure-melted in the pump are pumped into the dissolution tank by the pump. In the dissolution tank, the excess gas and the liquid containing the dissolved gas are separated. The surplus gas separated from the hot water is discharged from the dissolution tank, and the liquid containing the dissolved gas is discharged from the ejection port to the liquid storage tank.

At this time, when the undissolved excess gas is mixed in the liquid, the excess gas floats to the upper part in the ejection port and is then discharged into the bath through the through hole formed in the upper part of the ejection port. It As a result, the cavitation generating member will not be clogged with excess gas.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a bubble generating device for a bathtub will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a schematic circuit diagram of the bubble generating apparatus in this embodiment. As shown in the figure, hot water W as a liquid is stored in the bathtub 1. A suction port 2 and a jet port 3 are vertically formed on the side wall of the bathtub 1.
A pump 5 is connected to the suction port 2 via a suction pipe line 4. Further, an air suction port 6 as a gas suction port for sucking air as a gas is connected to the suction port of the pump 5.

A melting tank 7 is arranged on the downstream side of the pump 5, and the pump 5 and the melting tank 7 are connected by an inflow pipe line 8. Further, the dissolution tank 7 and the jet port 3 of the bath 1 are connected by a discharge pipe line 9. Further, the dissolution tank 7 and the suction pipeline 4 on the upstream side of the air suction port 6 are connected by a reduction pipeline 10.

As shown in FIG. 2, the jet outlet 3 is provided with a net filter 11 as a cavitation generating member. Although not shown, the suction port 2 is also provided with a net filter coarser than the net filter 11 covered by the jet port 3. Further, a through hole 12 having a diameter of 2 mm to 3 mm is formed between the net filter 11 and the wall surface of the bathtub 1 to which the ejection port 3 is attached. Further, at the upstream portion of the ejection port 3, the porous member 13 that depressurizes the hot water W that is pressure-fed from the melting tank 7.
Is provided.

Next, the operation of the bubble generator having the above structure will be described. First, when the pump 5 is driven, hot water W in the bathtub 1 is sucked into the pump 5 from the suction port 2 and air is sucked into the pump 5 from the air suction port 6 through the suction pipe line 4 by the suction force of the pump 5. The air is melted under pressure in the hot water W in the pump 5. Then, the hot water W containing the melted air is pressure-fed into the melting tank 7 through the inflow conduit 8. Then, in the dissolution tank 7, the air that has not been pressurized and melted by the pump 5 is reduced as excess air from the reduction conduit 10 to the suction conduit 4. Further, the hot water W from which the excess air is separated passes through the discharge conduit 9 and the porous member 13
After being decompressed by, the gas is discharged from the ejection port 3 into the bathtub 1.

At this time, even if the undissolved excess air that has not been separated from the hot water W in the dissolution tank 7 is pressure-fed to the ejection port 3 via the discharge pipe line 9, the excess air remains in the ejection port 3. After ascending to the upper portion, it is discharged into the bathtub 1 from the through hole 12. As a result, the net filter 11 will not be clogged with excess air, so that the hot water W will be absorbed by the net filter 1.
When passing 1, the cavitation is surely generated, and fine bubbles are generated in the bath 1.

As described above, according to this embodiment, the ejection port 3
Is provided on the side wall of the bathtub 1, and the through hole 12 is formed in the upper portion of the jet port 3 exposed between the side wall and the net filter 11 of the jet port 3, whereby clogging of the excess air into the net filter 11 is achieved. Can be prevented. As a result, it is possible to reliably generate fine bubbles in the bathtub 1.

The present invention is not limited to the above embodiment, but may be configured as follows, for example, within the scope of the invention. (1) In the above embodiment, the bath 1 is embodied as the liquid storage tank, but it is embodied as a water tank or the like, or water or a liquid containing various components is used instead of the hot water W as the liquid. It may be embodied as a bubble device. Further, air may be embodied as a gas in a bubble device using oxygen, carbon dioxide, or the like.

(2) In the above embodiment, the suction port 2 and the jet port 3 are provided on the side wall of the bathtub 1. However, the suction port 2 is provided on the bottom surface of the bathtub 1 or on the wall surface facing the jet port 3. You may.

[0018]

As described in detail above, according to the present invention,
It is possible to prevent clogging of the cavitation generating member provided at the ejection port and reliably generate fine bubbles in the liquid storage tank.

[Brief description of drawings]

FIG. 1 is a schematic circuit diagram of a bubble generating device embodying the present invention.

FIG. 2 is a side sectional view of an ejection port and a bath.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Bathtub as a liquid storage tank, 2 ... Suction port, 3 ... Jet port, 5 ... Pump, 6 ... Air suction port as a gas suction port,
7 ... Melting tank, 11 ... Net filter as cavitation generating member, 12 ... Through hole, W ... Hot water as liquid

Claims (1)

[Claims] 1. A liquid storage tank for storing liquid, the liquid storage tank having a suction port and a jet port, a pump for sucking the liquid in the liquid storage tank from the suction port of the liquid storage tank, and a suction port of the liquid storage tank. A gas suction port connected to the pump for sucking gas from the outside by a suction force of the pump, and a gas and a liquid pressurized and dissolved in the pump,
After separating the undissolved surplus gas from the liquid, the liquid from which the surplus gas has been separated, in a bubble generation device comprising a dissolution tank for discharging into the bath from the jet outlet, the jet outlet of the liquid storage tank A cavitation generating member is provided on the side wall, and a cavitation generating member is provided on the opening end surface of the ejection port, and a through hole that communicates the inside and outside of the ejection port with the upper portion of the ejection port exposed between the cavitation generating member and the side wall of the liquid storage tank. An air bubble generating device characterized in that.