JPH10156369A - Bath water circulating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve ozone solubility in bath water and to increase sterilizing effect by providing a pump for sucking and discharging the bath water in a bath, a purifying cylinder for purifying the bath water and a heater for heating the bath water, providing an ozone generator at a preceding stage before the bath water reaches the pump and incorporating ozone bubbles in the bath water. SOLUTION: The bath water in the bath V is sucked from a suction port 1 of a unit A at first, and after being removed a solid matter with a top filter 2, saprophytes in the bath water are purified, for example, with an activated carbon, etc., in the unit B. Then the bath water is heated to a suitable temp. with the heater, moreover, pressurized with the pump 5 and discharged from a discharge port 6 of the unit C to an inside of the bath V. At this time, the ozone generator 10 is interposed between the heater 4 and the pump 5. In this way, this side of the pump 5 becomes negative pressure, and a sucked amount of an air containing the ozone is suppressed, but the sterilizing effect is sufficiently exhibited even if an amount of the air containing the ozone is low since the solubility in the bath water is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath water circulating apparatus capable of constantly taking a so-called 24-hour bath, and more particularly to a bath water circulating apparatus in which a sterilization system using ozone is effectively incorporated.

[0002]

2. Description of the Related Art In a bath water circulating apparatus in which bath water is circulated in a bath tub to perform various treatments, ozone sterilization techniques such as UV sterilization, heat sterilization, electric sterilization, ion sterilization, etc. are used for sterilizing bath water. Is considered to be an effective technique as a sterilization method. However, as the ozone gas concentration is set to 0.1 ppm or less as a safety standard for the working environment, it is said that when the concentration is high, there is a peculiar odor and it is harmful to the human body.

[0003] However, the conventional bath water circulation device has been downsized,
Some ozone generators are incorporated from the viewpoint of low cost. However, most of the structure of this type of hot water bath is of a type in which ozone is mixed in addition to air when the air is entrained by an air rate device. That is, at the outlet for returning the bath water treated from the bath water circulation device to the bathtub,
Air is mixed into the bath water by using an ejector, and the air is blown to the bather, and the bubble is blown to the bather by the impact force.
In most cases, ozone is mixed in addition to this air.However, the ozone blown out together with the air does not dissolve in the bath water as bubbles, but almost all It will diverge into the air. For this reason, it has become a threat to the health of the human body, and it has been necessary to operate the ozone generator of the hot water bath intermittently or to stop ozone generation during bathing.

[0004]

However, even if the ozone generator is operated intermittently, the ozone gas concentration around the bathtub may exceed the safety standard of 0.1 ppm. In addition, if the bather consciously stops the generation of ozone during bathing, an effective opportunity for sterilization may be missed. As described above, as a problem of the bath water circulation device including the conventional ozone generator, it is pointed out that the ozone gas concentration in the air is inevitably increased, resulting in ozone odor and harm to the human body. That is.

An object of the present invention is to increase the solubility of ozone in bath water by incorporating the ozone generator at a specific position in the system when the ozone generator is provided in various systems of the bath water circulation device. .

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and its gist is to provide a pump for sucking and discharging bath water in a bathtub, and a purification for purifying bath water. A bath water circulation device having a tube, and usually a heater for heating the bath water, wherein an ozone generator is provided before the bath water reaches a pump to mix ozone bubbles into the bath water. And a bath water circulation device.

[0007] Preferably, an ozone recovery device mainly composed of, for example, activated carbon is provided in the vicinity of the discharge port of the bath water circulation device. In order to ensure the safety of ozone to the human body, no ozone odor is sensed. The ozone gas concentration in the bathroom, which is a level, is set to 0.05 ppm or less.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is constituted as described above. In order to increase the solubility of ozone in bath water, bubbles containing ozone are mixed with the bath water at least before a pump in a bath water circulation system. In this case, the dissolution rate of ozone is increased, and the dissolution rate is improved as compared with a conventional type of bath water circulation device in which ozone bubbles are mixed at a discharge port.

[0009] By providing an ozone recovery device such as activated carbon near the discharge port of the bath water, the ozone used for sterilization of the bath water in the bath water circulation device is prevented from leaking out of the device. It is.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The bath water circulating apparatus of the present invention will be described in more detail with reference to embodiments. FIG. 1 is a conceptual diagram showing the flow of bath water in the bath water circulation device system of the present invention. In the figure, A and C are units disposed in bath water of bath tub V, and B is disposed outside bath tub V. Unit. The unit A has a built-in suction port 1 and a top filter-2. Unit B includes a purifier 3, a heater-4, and a pump 5.
Are sequentially connected. The unit C is provided with a discharge port 6, in which an ozone recovery device 20 is built. Now, just before the pump 5, an ozone generator 10 is connected into the system. Reference numeral 11 denotes a check valve, and reference numeral 12 denotes a solenoid valve, from which air is taken.

Speaking mainly of the bath water in the bath water circulating apparatus, the bath water is first sucked through the suction port 1 of the unit A, the solid content is removed by the top filter-2, and the unit B is removed.
For example, various bacteria in the bath water are purified by, for example, barley stone, activated carbon or the like in the purification column 3 inside the bath. Then, the bath water is heated to an appropriate temperature by a heater-4, and furthermore, by a pump 5. The water is pressurized and discharged from the discharge port 6 of the unit C into the bath tub, and the bath water is thus constantly circulated in the bath water circulation device.

In the bath water circulation device of the present invention,
An ozone generator 10 is provided in the unit B, and the ozone generator 10 is provided between the heater 4 and the pump 5.
Are connected. However, a negative pressure occurs before the pump 5 and the amount of ozone-containing air sucked is limited. However, by improving the solubility in the bath water, the sterilization effect is sufficient even if the amount of ozone-containing air is small. Can demonstrate. That is, after the ozone generated by the ozone generator 10 is mixed into the bath water, the ozone is stirred by the impeller (not shown) of the pump 5 and sufficiently dissolved in the bath water. Note that reference numeral 1
Reference numeral 1 denotes a check valve, and reference numeral 12 denotes a solenoid valve. Air is supplied by opening and closing the solenoid valve 12, and ozone is mixed into the air. In this embodiment, the solubility of ozone in the bath water was improved about three times as compared with that of the conventional method, and conversely, the amount of air containing ozone was also reduced to about three times that of the conventional method. It is possible to reduce it to 1/3.

The unit C has a built-in ozone recovery device 20 mainly composed of activated carbon, and the remaining ozone obtained by sufficiently sterilizing the bath water through the route to the discharge port 6 is decomposed by oxidation-reduction reaction with activated carbon. It is to let. The ozone adsorbent in the ozone recovery apparatus 20 is not particularly limited, and may be, for example, a honeycomb structure or a pellet filled with iron-manganese or copper-manganese in addition to the above. Good. It is needless to say that this ozone recovery device may be provided at an arbitrary position between the suction port and the front of the purifying cylinder so as not to kill the purifying bacteria growing in the purifying cylinder.

The position of the ozone generator 10 in the system can be arbitrarily selected. However, if ozone exerts a bactericidal action on the purified bacteria in the purification column 3 as well,
Needless to say, it is desirable to consider a path in the apparatus so that ozone is mixed into the bath water after passing through the purification column 3.

[0016]

According to the embodiment, the solubility of ozone in the bath water can be improved as compared with that of the conventional method, and conversely, the amount of air containing ozone is reduced as compared with the conventional method. It is now possible. As a result, the ozone gas concentration around the bathtub becomes low, so that the adjustment by the intermittent operation of the ozone gas concentration becomes easy and reliable, and the ozone concentration can be adjusted without exceeding the set value. Confirm that there is a sufficient sterilizing effect even if the ozone generator is operated intermittently so that
Furthermore, it can be sterilized even during bathing, and the sterilizing effect can be improved.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a flow of bath water in a bath water circulation device system of the present invention.

[Explanation of symbols]

 A, B, C bath water circulation unit, V bathtub, 1 inlet, 2 top filter, 3 purifier, 4 heater, 5 pump, 6 ‥‥ Discharge port, 10 ‥‥ Ozone generator, 11 ‥‥ Check valve, 12 ‥‥ Solenoid valve, 20 ‥‥ Ozone recovery device.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/50 510 C02F 1/50 520L 520 531R 531 540A 540 550C 550 B01D 53/34 120B

Claims (4)

[Claims] 1. A bath water circulation device provided with at least a pump for sucking and discharging bath water in a bathtub and a purifying cylinder for purifying the bath water, comprising an ozone generator before the bath water reaches the pump. A bath water circulation device characterized by mixing ozone bubbles into bath water. 2. The bath water circulation device according to claim 1, further comprising an ozone recovery device near the discharge port. 3. The bath water circulation device according to claim 2, which is an ozone recovery device mainly composed of activated carbon. 4. An ozone gas concentration of 0.05 pp in a bathroom.
The bath water circulation device according to claim 1, wherein the length is not more than m.