JPH0376196B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method and apparatus for purifying warm bath water, and more particularly to an improvement in technology for injecting and mixing ozone into circulating hot water in a bathtub. .

[Prior art] As is well known, as lifestyles become more sophisticated and diversified, a wide variety of improvements have been made to bathing, including purifying hot water in bathtubs, deodorizing odors in hot water, and There are methods in practical use to sterilize and eliminate fungi that are unsuitable for maintaining physical health inside the body. That is, it is usually called a means for purifying hot bath water or a means for deodorizing and sterilizing hot water, and this device includes at least a filtration means and a final stage of the filtration means. A hot water inflow pipe system for causing hot water in the bathtub to flow into the filtration device, a hot water outflow pipe system for circulating hot water from the filtration device into the bathtub, and a circulation pump, and the above hot water circulation system It has an ozone mixer for injecting and mixing ozone generated by an ozone generator. In the above, the filtration means may be singular, or may be arranged in multiple stages such as primary and secondary. There are various types such as those using activated stones such as
For example, there are some that are kept warm at around 42 degrees Celsius.

By the way, if we look at the specific conventional technology of this hot water circulation purification device, we will see that in the past, an ozone mixer for injecting and mixing ozone generated in an ozone generator was extended from the secondary side of the filtration device. It is disposed in an outflow pipe system connected to the outflow end of the bathtub, particularly in an outflow pipe system located close to the outflow end of the bathtub.

[Problems to be Solved by the Invention] When focusing on the filtration function of the single or plural filtration devices themselves, the above-mentioned prior art is capable of removing dirt, oil, etc. that get mixed into hot water in a bathtub, and producing hot water. When filters, activated stones, ceramics, etc. are used as cleaning and filtration media, they exhibit several excellent advantages such as their filtration function and mineralization of water quality. When considering the injection and mixing of ozone, several problems are found. That is, there are several and multifaceted reasons for injecting and mixing ozone into hot bath water, but some of them are as follows. 1 is that it deodorizes odors in hot water. More specifically, ozone odor may be used to mask odor, but in particular, it oxidizes and removes dissolved malodorous components. Furthermore, the filter medium in the filtration device, more preferably activated carbon or the like, promotes the reaction between ozone and malodorous components to oxidize and remove the odor.

The second is the sterilization and sterilization of harmful bacteria in warm water due to the bactericidal action of ozone itself. Part 3 is injecting ozone into hot water and mixing it to activate the action of microorganisms in the warm water.More specifically, it activates the action of aerobic microorganisms through the use of nitrogen components, and more specifically, filtration. Activates the microorganisms that grow in the device,
These include decomposing and removing organic matter. However, in the past, an ozone mixer was placed at the outflow end of the bathtub, and the ozone mixer was placed at the outflow end of the bathtub, and the ozone mixer was used to circulate mostly the hot water in the bathtub, that is, the hot water coming out of the filtration device, rather than the hot water that was going to be circulated into the filtration device. Ozone itself has the functions of deodorizing, sterilizing, and decomposing organic matter, but it flows out in the form of bubbles from the hot water surface of the bathtub before being circulated to the filtration device, so it is difficult to deodorize. In other words, the deodorizing effect accompanying the promotion of the reaction between the filter medium and ozone in the filtration device is rarely utilized, resulting in low deodorizing efficiency. In addition, aerobic microorganisms breed in large numbers in the filtration device, but for the same reason, activation of these aerobic microorganisms by ozone is hardly expected, and the efficiency of organic matter decomposition is low. That is, there is no correlation between ozone injection and the function of the filtration device.

In particular, the following points are a major problem.

That is, although ozone itself is effective, it is also toxic to the human body. If the dissolved amount is not appropriate, that is, if it is in excess, it may cause irritation, remain toxic to the human body, and sometimes lead to death. Therefore, it is necessary to inject and mix ozone into warm water at a predetermined appropriate concentration that is not harmful to the human body and allows ozone to perform its effective functions as described above, but in reality, it is extremely difficult to set this. . Therefore, if the ozone is injected and mixed at the outflow end of the bathtub as in the prior art, excess ozone may come into direct contact with the human body, which is unfavorable for health.

[Objective] Therefore, an object of the present invention is to provide a bathtub hot water circulation method and its apparatus that can correlate ozone injection with the function of a filtration device.
Specifically, by injecting and mixing ozone at the upstream side of the final stage of filtration, we utilize the function of promoting the reaction between ozone and malodorous components by the filter media of the filtration means.
By increasing the deodorizing efficiency, by absorbing and removing excess ozone using a filter medium, or by promoting the activation of aerobic microorganisms that breed in large numbers in the filter medium, it is possible to further decompose and remove organic matter. There is something to do.

In addition, the objective is to eliminate as much as possible the negative effects on the human body without injecting or mixing ozone excessively. Moreover, it is an object of the present invention to provide a means for preventing the air lock phenomenon in the hot water circulation process.

[Means for Solving the Problems] In order to achieve the above object, the present invention has the following technical means. That is, to explain this using the reference numerals in the accompanying drawings corresponding to the embodiments, the method of the present invention sucks hot water from a bathtub, then filters it, or filters and activates the hot water and heats it to keep it warm, and then drains the bathtub side. In a bathtub hot water purification method, the hot water is purified or purified, activated and temperature-controlled by flowing out into the hot water, and ozone is injected into the hot water during the hot water circulation process; The ozone is injected into the circulating warm water at a position upstream of the position where the final stage filtration action is applied, and air generated in the hot water is separated at a position downstream of the ozone injection position before being circulated. This is a method for purifying hot water in a bathtub 1, characterized in that the invention includes at least a filtration means and a filtration device 3 for carrying out a final stage filtration action of the above-mentioned filtration means. It has a hot water circulation system consisting of a hot water inflow pipe system 6 for injecting W, a hot water outflow pipe system 12 for flowing hot water W from the filtration device 3 into the bathtub 1, and a circulation pump 9, and an ozone generator. In a bathtub hot water purification and circulation system having an ozone mixer for injecting the ozone generated in step 14 into the hot water circulation system; an ozone mixer 16 connected to the ozone generator 14 via an ozone injection pipe 15, Based on the position of the final stage filtration device 3, a gas-liquid separator 17 is disposed in the hot water inflow pipe system 6 corresponding to the primary side thereof, and a gas-liquid separator 17 is located downstream of the ozone mixer 16.
This is a bathtub hot water purifying circulation device that is characterized by being equipped with.

[Function] With the above configuration, hot water in the bathtub 1 is supplied to the circulation pump 9.
The hot water flows into the filtration device 3 via the hot water inflow pipe 6. It is filtered there. In this case, just dirt,
In addition to separating oil, it is also filtered using functions depending on the type of filter media. Moreover, the deodorizing effect is also carried out by the filter medium itself. The hot water then flows out through the hot water outflow pipe 12 into the bathtub. That is, the hot water is purified by circulation.

During this circulation process, ozone is injected and mixed from the ozone mixer 16. Deodorization is achieved by masking or oxidation by the dissolved ozone itself, and harmful bacteria in the warm water are sterilized by the bactericidal action. In addition, the growth of aerobic microorganisms is activated, and organic matter is decomposed and removed. etc.

However, the characteristic effects of the present invention are as follows.

Ozone is injected before the final stage filtration device 3.

Therefore, the function of promoting the reaction between ozone and malodorous components by the filter medium of the filter device 3 is likely to be promoted. In addition, aerobic microorganisms breed near the filter medium, making it easy to activate these aerobic microorganisms and efficiently decomposing and removing organic matter.

In particular, even if the amount of ozone injected from the ozone mixer 16 is slightly excessive, the excess that is not dissolved in the liquid separator 17 is released into the atmosphere before going into the bathtub 1 where the human body is located.

Therefore, it becomes easy to set the optimum ozone injection amount.

[Embodiments] Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the figure, 1 indicates a bathtub, and 2 indicates a hot water purifying circulation device.

A filtration means is disposed within the hot water purifying circulation device 2. In this example, it is shown as filtration device 3, which is located at the final stage. In this example, the filtration device 3 is provided with a heater 3A, for example, a far-infrared ceramic heater, on the downstream side, and a filter stone 3B on the upstream side.

As the filter stone 3B, an appropriate filter medium such as activated carbon, activated stone such as biosituine, ceramics, etc. is selected. Then, a hot water inflow pipe 6 is connected between the lower part 4 of the bathtub 1 and the inflow end 5 of the filtration device 3;
In the middle of the hot water inflow pipe 6, a valve 7, a hair cap 8 as a primary cleaning means (filtration device), and a hot water circulation pump 9 are disposed in order from upstream.

On the other hand, a hot water outflow pipe 12 is connected between the upper part 10 of the bathtub 1 and the outflow end 11 of the filtration device 3, and a valve 13 is attached to the middle of this hot water outflow pipe 12.

The above is an example of a conventional general hot water purifying circulation device, but the present invention is made as follows in order to achieve the above-mentioned object.

First, when focusing on the filtration device 3 located at the final stage among the above-mentioned filtration means, an ozone mixer 16 is disposed at the hot water inflow pipe 6 located on the primary side thereof. The ozone mixer 16 can be of several types, such as an orifice type or a counterflow discharge type. An example of the orifice type is shown in FIG. 2, and an example of the opposing discharge type is shown in FIG. 4, and the effects of these will be briefly explained in the operation section below.

A known ozone generator 14 is used as means for sending ozone to the ozone mixer 16.
A and an air pump 14B for feeding, and an ozone injection pipe 15 connects the ozone generation source 14B and the ozone mixer 16.

The second improvement is to install a gas-liquid separator 17 downstream of the ozone mixer 16, and in this example, it is installed at the top of the filtration device 3. . The gas-liquid separator 17 may be of the float type shown in FIG. 3 or may be of a solenoid valve type with timer control or sensor detection control.

The operation will be explained based on the above configuration.

The hot water W in the bathtub 1 is driven by the circulation pump 9.
The water flows in through the hot water inflow pipe 6, and the hair etc. are removed by the hair catcher 8. Next, it enters the filtration device 3 and is heated by the heater 3A. Heater 3A operates at a predetermined constant temperature, e.g. 42°C or higher.
It is set to turn off, and turn on when the temperature is lower than that, keeping the hot water warm. The hot water enters the filter medium 3B,
There, dirt and oil are separated or adsorbed, or the pH is adjusted. Then, the hot water W returns to the bathtub 1 via the hot water outflow pipe 12 again.

In this way, it is cleaned by the filtration means.

In the above process, hot water W is supplied from the ozone mixer 16.
Ozone is injected and mixed inside.

Therefore, ozone's masking action masks the malodorous components of hot water, and its oxidizing action decomposes the malodorous components. Alternatively, it is sterilized or sterilized by the bactericidal action of ozone.

In addition, dissolved ozone activates aerobic microorganisms and separates and removes organic matter.

By the way, ozone is injected and mixed before the filtration device 3. Therefore, the user directly benefits from the promotion of the reaction between malodorous components and ozone by the filter medium in the filtration device 3, and can achieve better deodorization.

In addition, since there are many aerobic microorganisms present in the filter media, activation by dissolved ozone is further promoted, and the decomposition of organic matter is further promoted.

In particular, when injecting and mixing ozone, it is difficult to set the optimum concentration, but even if excess ozone is injected, it will be converted into gas by the gas-liquid separator 17 at the top of the filtration device 3 into the atmosphere. Since excess ozone can be separated by water, it is possible to prevent excess ozone from flowing back into the bathtub and causing toxicity to the human body.

In addition, air lock due to excess ozone is also prevented. The gas-liquid separation operation in this example is performed by lowering the float 25 and causing the nozzle pin 28 to open the air outlet 27, as shown in FIG.

In addition, 23 is a casing, and 24 is a float sliding support.

Furthermore, the orifice type ozone mixer 16 of this example
To briefly explain the operation, an orifice 20 is formed between the inflow side 18 and the outflow side 19, and an ozone injection pipe end 22 is connected to the expansion part 21. When water is fed from 18 directions on the inlet side of diameter D _2- with pressure Po, the diameter
The pressure loss P _2- due to the orifice part 20 of d _2- , the negative pressure Pi generated in the expansion part 21 of diameter D ² , and the diameter Di
The pressure P ² at the outlet side 19 of is expressed by the following equation.

Po=P _2- + (-Pi) + P ² This negative pressure Pi in the expansion part 21 is
^This is caused _by the Karman vortex that accompanies _the increase in flow velocity due to
2 becomes a value lower than atmospheric pressure.

That is, when a jet is generated by the orifice part 20 and a negative pressure is generated in the expansion part 21, and ozone is inhaled from the ozone injection pipe 22, ozone and hot water are mixed in the path leading to the outflow side 19, and the apparent specific gravity is reduced. It becomes lighter. Therefore, the flow path loss at the expansion part 21 and the outflow side 19 is reduced, the negative pressure in the expansion part 21 is further increased, and a larger amount of ozone is sucked.

Furthermore, when using the counterflow discharge type shown in Fig. 4,
A small-diameter branch pipe 28 is branched from the hot water inflow pipe 6, and a pump 29 is arranged in the middle, and the injection chamber 3
0 is formed and the nozzles 31 are opposed to each other. The ozone injection pipe 15 is connected to the chamber 30. According to this, ozone is discharged from the nozzle 31 facing the hot water and mixed with the hot water.

Of course, the present invention is not limited to these examples of ozone mixer 16.

[Effects of the Invention] As detailed above, according to the present invention, since ozone is injected into hot water and mixed on the primary side of the final stage filtration device, it has the function of promoting the reaction between ozone and malodorous components. The function of the filter media can be further promoted, and deodorization can be better achieved.Since many aerobic microorganisms exist in the filtration device, aerobic microorganisms near the filter media can be further activated, and organic matter can be further decomposed and removed. can. Ozone injection and filtration function can be organically correlated.

In particular, it is difficult to inject ozone into hot water and properly set the mixing concentration, but even if you inadvertently inject too much ozone, it will separate before it reaches the downstream side of the ozone mixer 16, that is, before it reaches the bathtub 1. Therefore, facultative effects on the human body can be eliminated as much as possible. In addition, it has various practical advantages, such as preventing air locks and not interfering with hot water circulation. More specifically,
Ozone is not directly injected into the bathtub hot water, but is forcibly mixed directly before the final filtration means, so the sterilization and purification effect of ozone can be used more effectively and safely for the human body. It is possible.

[Brief explanation of drawings]

The accompanying drawings show embodiments of the present invention, and FIG. 1 is a longitudinal sectional view showing the whole, FIG. 2 is an example of an orifice type ozone mixer, FIG. 3 is an example of a gas-liquid separator, and FIG. The figure shows an example of a counterflow discharge type ozone mixer. It is a liquid separator.

Claims (1)

[Scope of Claims] 1. Inhale hot water from a bathtub, then filter it, or filter and activate the hot water and keep it heated, and then let it flow out to the bathtub side to purify or purify, activate and purify the hot water. In a bathtub hot water purification method in which the temperature is kept constant and ozone is injected into the hot water during the hot water circulation process; A method for circulating hot water in a bathtub, characterized in that air generated in the warm water is separated at a position downstream from the ozone injection position and then circulated. . 2 At least, a filtration means, a hot water inflow pipe system 6 for injecting the hot water W in the bathtub 1 into the filtration device 3 for carrying out the final stage filtration action of the filtration means, and a hot water inflow pipe system 6 for injecting the hot water W from the filtration device 3 It has a hot water circulation system consisting of a hot water outflow pipe system 12 and a circulation pump 9 for discharging W into the bathtub 1, and an ozone mixer for injecting ozone generated in the ozone generator 14 into the hot water circulation system. In a bathtub hot water normal circulation system having: The ozone mixer 16 connected to the ozone generator 14 via the ozone injection pipe 15 corresponds to the primary side with respect to the position of the final stage filtration device 3. A gas-liquid separator 17 is disposed in the hot water inflow pipe system 6 and is located downstream of the ozone mixer 16.
A bathtub warm water purifying circulation device characterized by being equipped with. 3. The bathtub warm water purification and circulation system according to claim 2, wherein the gas-liquid separator 17 is disposed above the final stage filtration device 3.