JP2000317462A - Water purifying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To completely detoxify waste ozone to enable to release to the atmosphere. SOLUTION: The water 2 in a bath tub 1 is sucked by a filter pump 3 and the impurity in the water 2 is removed by a dust removing device 4 and a filter 5. The ozone generated at an ozone generator 8 is added to the water 2 after removing the impurity by an ejector 9 and mixed uniformly by a mixer 10. The mixture is conducted to an ozone reaction column 12, and the water 2 is purified by allowing the water 2 to react with the ozone. The purified water 2 is returned to the bath tub 1 by interposing a heat exchanger 7. The vapor waste ozone generated in the ozone reaction column 12 at the time of purifying the water is collected at a waste ozone reservoir 13. The waste ozone is conducted to a gas-water separator 15 to execute gas-water separation, and the waste ozone after the gas-water separation is conducted to a thermally decomposing device 16 to subject to heat treatment. The separator having the structure in which the gas-water separation is executed by colliding the vapor waste ozone to a gas-water separation plate is used as the gas-water separator 15 to completely remove the moisture in the waste ozone. In this way, the treating efficiency at the thermally decomposing device 16 is improved and the waste ozone is completely detoxified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifying apparatus for purifying hot water in a bathtub or water in a pool, and more particularly to a water purifying apparatus capable of completely processing ozone discharged by water purification.

[0002]

2. Description of the Related Art In general, as a method for purifying water or hot water (hereinafter simply referred to as water) stored in a water bath such as a bathtub or a pool, water discharged from the storage bath is removed by a dust remover or the like. There is known a method of removing impurities in water by guiding the same to a filtration device.

However, it is impossible to sterilize and deodorize water by itself, so that chlorine has been conventionally added to water from which impurities have been removed, thereby sterilizing and deodorizing the water.

[0004]

In the above-mentioned conventional water purification method, chlorine is used for disinfection and deodorization. Therefore, sufficient care must be taken in handling the chlorine, and chlorine is expected to have such a large disinfection and deodorization effect. Therefore, a large amount of chlorine must be used, and when a large amount of chlorine is used, there is a problem that chlorine odor remains in water.

[0005] In some cases, attempts have been made to sterilize and deodorize water using ozone, which has a sterilizing and deodorizing ability at least six times that of chlorine. For example, a bathtub is directly immersed in water in the bathtub. A water purification device to which ozone is added has been put to practical use.

However, this type of water purification apparatus employs a method in which ozone is directly added to water in a relatively shallow bathtub, so that the contact reaction time between ozone and water cannot be lengthened, There is a problem that the sterilizing and deodorizing effects of ozone cannot be fully utilized, and the exhausted ozone after the reaction is filled in the bathroom to increase the ozone concentration in the bathroom.
There is also a problem that it is not preferable for the human body.

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and it is possible to obtain a sufficient sterilizing and deodorizing effect by prolonging a contact reaction time between water and ozone, and completely eliminate ozone generated by water purification. It is an object of the present invention to provide a water purification device capable of preventing the adverse effect on a human body by treating the water purification device.

Another object of the present invention is to provide a water purifying apparatus capable of adjusting the temperature of the water accompanying the water purification and keeping the temperature of the water in the water storage tank constant.

Still another object of the present invention is to provide a water purifying apparatus capable of keeping the water level in a water storage tank constant and preventing deterioration of water quality due to water supply.

[0010]

According to the present invention, there is provided an ozone adding section for adding ozone to water discharged from a water storage tank; a reaction between ozone water and pure water to obtain clean water; A water purification unit that removes later waste ozone and recovers clean water; and a waste ozone treatment unit that treats vapor-like waste ozone discharged from the water purification unit. The ozone treatment section is constituted by a steam-water separator that separates vapor-like waste ozone from steam and water, and a thermal decomposition device that heat-treats the waste ozone discharged from the steam-water separator. A vertically elongated container-shaped main body; a drain pipe provided in the main body in a double tubular shape, for allowing water after air-water separation to flow down from an upper end opening and discharging to the outside of the main body; To prevent the ozone discharged from the water / water separation from flowing into the drain pipe. A water-sealing body to be stopped; a water-water separator disposed inside the upper end of the main body to divide the inside of the main body into two parts; An inlet for air / water separation, provided at a position facing the inlet on the upper peripheral surface of the main body, and discharging the exhausted ozone separated from the air / water through the upper and lower spaces between the air / water separator and the water seal. And a discharge port. Since the water ozone treatment is performed in a water purifying section separate from the water storage tank, the contact reaction time between ozone and water is lengthened, and sufficient sterilization and deodorization effects can be obtained. . Further, the vapor-like exhaust ozone is subjected to a heat treatment in the thermal decomposition device after the removal of water by the steam separator, so that the treatment efficiency can be improved and the exhaust ozone can be completely rendered harmless. In addition, vapor-water separation is performed by causing vapor-like waste ozone to collide with the water-water separator, so that even if the amount of vapor-like waste ozone or the amount of moisture in the waste ozone fluctuates, stable steam-water is always maintained. A separation effect can be obtained. In addition, since the drain pipe for discharging the water after the air-water separation has a water sealing body, there is no possibility that the ozone discharged after the air-water separation flows into the drain pipe side, which is also safe from this point. .

The present invention is further characterized in that a heat exchanger for controlling the temperature of the clean water and returning it to the water storage tank is provided on the outlet side of the water purification section. And by this, even if the water temperature fluctuates during water purification, the temperature is controlled by the heat exchanger,
It becomes possible to keep the water temperature of the water storage tank constant.

[0012] The present invention further comprises:
A makeup water line having a temperature control mechanism is provided. This makes it possible to keep the water level in the water storage tank constant, and there is no possibility that the water quality of the water storage tank will be degraded due to water supply from the makeup water line.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a water circulation system in which a water purification device according to the present invention is incorporated. In the drawing, reference numeral 1 denotes a bathtub filled with high-temperature water (that is, hot water) 2. The water 2 is absorbed from the bathtub 1 by activation of the filtration pump 3, so that coarse impurities are removed in the dust remover 4 and fine impurities are removed in the filter 5. Then, the water 2 is guided to a water purification device 6 for sterilization and deodorization as shown in FIG. 1, and then heated to a predetermined temperature in a heat exchanger 7 and returned to the bathtub 1. .

As shown in FIG. 1, the water purification device 6
An ozone addition section 6a for adding ozone to the water 2, a water purification section 6b for reacting ozone and water to obtain clean water, removing waste ozone after the reaction and recovering clean water, and a water purification section 6b. An exhausted ozone processing unit 6c for processing the discharged vapor-like exhausted ozone.

As shown in FIG. 1, the ozone adding section 6a includes an ozone generator 8 for generating ozone by a discharge phenomenon.
The ozone generated by the ozone generator 8 is guided to an ejector 9 that obtains a suction force due to a pressure difference caused by the injection of the water 2, and is added to the water 2.
Then, as shown in FIG. 1, the water 2 and the ozone are guided to and mixed in a stationary mixer 10, and the mixing properties are made uniform.

As shown in FIG. 1, the water purifier 6b includes an ozone reaction tower 12 having a vertically long container shape, to which the water 2 and the ozone sent from the mixer 10 are supplied through a water introduction pipe 11. A drained ozone reservoir 13 is formed inside the upper end of the ozone reaction tower 12, and purified water 2 is supplied to the axial center of the ozone reaction tower 12.
A discharge pipe 14 for discharging to the outside is provided. Then, the water 2 and ozone guided into the ozone reaction tower 12 from the water introduction pipe 11 flow in the ozone reaction tower 12 as a spiral upward flow. Deodorization is performed, and the exhausted ozone after the contact reaction is guided from the exhausted ozone reservoir 13 to an exhausted ozone processing unit 6c described later, and the purified water 2 is subjected to heat exchange from the exhaust pipe 14. It is led to the vessel 7.

As shown in FIGS. 1 to 3, the waste ozone treatment section 6c is provided with a steam-water separator 15 for separating steam-discharged ozone from water and water, and heat-treats the waste ozone after the gas-water separation. And a decomposing heat decomposer 16, and the exhausted ozone ozone detoxified by the heat decomposer 16 is released to the atmosphere.

As shown in FIGS. 2 and 3, the steam-water separator 15 has a vertically long container-shaped main body 17, and the upper end of the main body 17 has an axial center portion higher than the upper end portion of the main body 17. A drain pipe 18 opening at a slightly lower position is provided in a double tubular shape,
The water 19 after the air / water separation passes through the drain pipe 18 to the main body 17.
It is designed to be discharged outside.

As shown in FIG. 2, the drain pipe 18 has
A water sealing body 20 in the form of a cap having a canopy shape is crowned, and the water sealing body 20 allows the exhausted ozone 21 after the separation of steam and water.
Can be completely prevented from flowing into the drain pipe 18 side. This will be described later in detail.

On the other hand, as shown in FIGS. 2 and 3, the space above the drain pipe 18 in the main body 17 is divided into two by a steam-water separating plate 22 whose lower end is bent in a V shape.
An inlet 23 facing the steam separator 22 is provided at the upper end of one of the chambers, and an outlet 24 facing the steam separator 22 is provided at the upper end of the other chamber. I have.
The vapor-like exhausted ozone from the exhausted ozone reservoir 13 is guided into the main body 17 from the inlet 23 and collides with the steam-water separation plate 22 so that steam-water separation is performed.

As shown in FIG. 2, the water 19 after the water / water separation is stored in a lower portion of the main body 17 and then discharged out of the main body 17 through a drain pipe 18.
The waste ozone 21 after the gas / water separation is guided to the outlet 24 through the upper and lower spaces between the steam / water separation plate 22 and the water seal 20, and is sent from the outlet 24 to the thermal decomposition device 16. Has become.

As shown in FIGS. 2 and 3, the thermal decomposition device 16 has a cylindrical main body 25 and a rod-shaped electric heater 26 disposed in the main body 25. The waste ozone 21 is heated by the electric heater 26 while flowing down the inside of the main body 25, is converted into a harmless gas, and is released to the atmosphere.

On the other hand, the inlet side of the filtration pump 3
As shown in the figure, a downstream end of a makeup water pipe 27 having an on-off valve 28 is connected, and an upstream end of the makeup water pipe 27 is
A hot water supply pipe 30 and a water supply pipe 31 are connected to each other through an appropriate temperature water adjustment mixer 29. The makeup water from the makeup water pipe 27 is also sent to the bathtub 1 after being purified by the water purification device 6.

Next, the operation of the present embodiment will be described. When purifying the water 2 in the bathtub 1, the filtration pump 3
Is activated to suck the water 2 in the bathtub 1. Suctioned water 2
In the filter, coarse impurities are removed in the dust remover 4 and minute impurities are removed in the filter 5. After that, the water is sent to the water purification device 6 where it is sterilized and deodorized, and returned to the bathtub 1 via the heat exchanger 7. That is, the water 2 in the bathtub 1 is filtered, sterilized, and deodorized while circulating through the water circulation system shown in FIG. 1, so that the inside of the bathtub 1 is always kept clean.

Next, the operation of the water purification device 6 will be described. The water 2 sent out from the filter 5 first has an ejector 9
In the above, ozone generated by the ozone generator 8 is added, and then sent to the mixer 10 where the ozone is agitated to make the mixing properties uniform. Then, the mixture of the water 2 and ozone is sent to the ozone reaction tower 12 via the water introduction pipe 11.

The ozone generator 8 discharges between a pair of electrodes, and supplies high-purity oxygen generated by a PSA (oxygen enrichment) oxygen generator to the discharge surface to generate ozone. It has a structure to make it. As a result, the generation of nitrogen oxides during the generation of ozone is almost eliminated, so that adverse effects of the nitrogen oxides on human bodies and equipment can be prevented.

The ozone reaction tower 12 through the water introduction pipe 11
The mixture of the water 2 and the ozone sent to the lower end of the O2 rises in the ozone reaction tower 12 as a spiral upward flow, during which the water 2 is sterilized and deodorized by the reaction with the ozone.

The mixture of water 2 and ozone which has risen to the upper end of the ozone reaction tower 12 is separated into steam and water in the waste ozone reservoir 13, and the waste ozone is stored in the waste ozone reservoir 13, and the purified water 2 is Is sent to the heat exchanger 7 via the discharge pipe 14 and returned to the bathtub 1 after temperature adjustment.

Since the water / water separation at the upper end of the ozone reaction tower 12 is a separation method utilizing only a specific gravity difference, the exhaust ozone stored in the exhaust ozone reservoir 13 is not a complete gas but a mist. So-called vapor-like exhaust ozone containing water. Therefore, when this waste ozone is directly introduced into the thermal decomposition device 16 to perform a heat treatment, the treatment efficiency in the superheat decomposition device 16 is extremely reduced, and harmful waste ozone may be released to the atmosphere as it is.

Therefore, in the present embodiment, the steam-water separator 15 is installed on the inlet side of the thermal decomposition device 16 to completely remove the water in the exhausted ozone, and the exhausted ozone 21 after the steam-water separation is heated. It is sent to the decomposer 16.

That is, the steam-water separator 15
The vapor-like exhausted ozone guided into the main body 17 of the 衝突 衝突 衝突 衝突 衝突 気 気 気 気 気 気.
9 is stored in the lower part of the main body 17, and the discharged ozone 21 after the air / water separation is guided to the outlet 24 through the vertical space between the water / water separation plate 22 and the water seal 20, and is heated. Heat treatment is performed in the decomposer 16. Note that the water 19 after the separation of steam and water stored in the lower portion of the main body 17 is discharged from the drain pipe 18 to the outside of the main body 17 after the amount of stored water reaches a certain value.

Since the steam-water separator 15 adopts a system in which steam-water is separated by colliding vapor-like waste ozone with the steam-water separator 22, the amount and discharge of vapor-like waste ozone are determined. Even if the amount of water in the ozone changes, the water in the exhausted ozone can be almost completely removed. For this reason, the processing efficiency in the thermal decomposition device 16 can be improved, and the exhausted ozone can be completely rendered harmless and released to the atmosphere. Further, since the cap-shaped water sealing body 20 is attached to the drain pipe 18 for discharging the water 19 after the separation of steam and water, even if the pressure inside the main body 17 fluctuates greatly, In addition, there is no problem that the discharged ozone 21 is discharged to the outside through the drain pipe 18, and this is extremely safe.

In the above embodiment, the water purification device 6 applied to the bathtub 1 has been described as an example.
The present invention can be similarly applied to other water storage tanks such as a pool, and the same effect can be obtained.

[0034]

As described above, the present invention relates to an ozone adding section for adding ozone to water discharged from a water storage tank; a reaction between ozone water to obtain clean water, and an ozone discharged after the reaction. A water purification unit for removing water and recovering clean water;
A waste water ozone treatment unit for treating vapor-like waste ozone discharged from the water purification unit, wherein the waste water ozone treatment unit is configured to perform vapor-water separation of vapor-like waste ozone. A steam decomposer configured to heat-treat the exhausted ozone discharged from the steam-water separator, wherein the steam-water separator is provided in a vertically long container-shaped main body; A drain pipe for draining the water after the water / water separation from the upper end opening and discharging it to the outside of the main body; a cap attached to the drain pipe to prevent the ozone discharged from the water / water separation from flowing into the drain pipe side A water-sealed body; a steam-water separator disposed inside the upper end of the main body to divide the inside of the main body into two parts; An inlet for separating water and water; provided at a position facing the inlet on the upper peripheral surface of the main body And a discharge port for discharging the discharged ozone separated from the water and water through the upper and lower spaces between the water and water separation plate and the water sealing body. Since it is performed, the contact reaction time between ozone and water can be prolonged, and a sufficient sterilizing and deodorizing effect can be obtained. Further, the vapor-like exhausted ozone is subjected to heat treatment in the thermal decomposition device after removing water in the steam separator, so that the treatment efficiency can be improved and the exhausted ozone can be completely rendered harmless. In addition, vapor-water separation is performed by causing vapor-like waste ozone to collide with the water-water separator, so that even if the amount of vapor-like waste ozone or the amount of moisture in the waste ozone fluctuates, stable steam-water is always maintained. A separation effect can be obtained. In addition, since the drain pipe for discharging the water after the air-water separation has a water sealing body, there is no possibility that the ozone discharged after the air-water separation flows into the drain pipe side, which is also safe from this point. .

In the present invention, a heat exchanger for controlling the temperature of the clean water and returning it to the water storage tank is provided on the outlet side of the water purification section. Also,
By controlling the temperature in the heat exchanger, the water temperature in the water storage tank can be kept constant.

The present invention further provides an ozone addition section with an inlet,
Since the makeup water line having the temperature control mechanism is provided, the water level in the water storage tank can be made constant, and the water quality of the water storage tank does not deteriorate due to the water supply from the makeup water line.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing a water purification device according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view illustrating details of a steam separator and a thermal decomposition device in FIG.

FIG. 3 is a plan view of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 2,19 Water 3 Filtration pump 4 Dust remover 5 Filter 6 Water purification device 6a Ozone addition part 6b Water purification part 6c Discharge ozone treatment part 7 Heat exchanger 8 Ozone generator 9 Ejector 10 Mixer 12 Ozone reaction tower 13 Discharge Ozone reservoir 15 Gas-water separator 16 Heat decomposition unit 17, 25 Main body 18 Drain pipe 20 Water seal 21 Exhaust ozone 22 Gas-water separator 23 Inlet 24 Outlet 26 Electric heater 27 Refill water pipe 29 Appropriate temperature water adjustment mixer 30 Hot water supply Pipe 31 Water supply pipe

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A47K 3/00 A47K 3/00 H B01D 19/00 B01D 19/00 Z

Claims (3)

[Claims] An ozone adding section for adding ozone to water discharged from a water storage tank; a reaction between ozone and water to obtain clean water, and a removal of ozone after the reaction to remove clean water. In a water purification apparatus comprising: a water purification section to be collected; and an exhaust ozone treatment section to treat vapor-like exhaust ozone discharged from the water purification section, the exhaust ozone treatment section includes a gaseous exhaust ozone gas. A steam-water separator for separating water; and a pyrolyzer for heating the ozone discharged from the steam-water separator. The steam-water separator has a vertically long container-shaped main body; A drain pipe which is provided in a double tubular shape and which allows the water after air-water separation to flow down from the upper end opening and discharges it to the outside of the main body; A water seal to prevent the water from flowing into the body; A water / water separator plate that divides the inside of the main body into two parts; an inlet port provided on the upper peripheral surface of the main body to cause vapor-like exhausted ozone to collide with the water / water separator plate to separate water and water; And a discharge port which is provided at a position opposed to the inlet of the liquid crystal, and discharges ozone separated by water and water through a vertical space between the water and water separation plate and the water sealing body. Water purification device. 2. The water purifier according to claim 1, wherein the water purifier has a heat exchanger on its outlet side for controlling the temperature of the clean water and returning it to the water storage tank. 3. The water purifier according to claim 1, wherein the ozone addition unit includes a makeup water line having a temperature control mechanism on an inlet side thereof.