JP4374920B2 - Oxygen-enriched water heater - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot water supply apparatus having a function of supplying oxygen into bath water in a bathtub using a reheating pipe of a water heater having a recirculation circuit.
[0002]
[Prior art]
Conventionally, this type of oxygen supply device is equipped with a fine bubble generator or jet injection device, and supplies gas to a pipeline for circulating bath water such as a bubble bath or jet bath that circulates bath water through these devices. A supply unit is provided, and an oxygen enricher for supplying oxygen-enriched air to the supply unit is provided (see, for example, Patent Document 1).
[0003]
FIG. 4 shows an oxygen supply apparatus for a conventional bathtub described in the above publication. In the figure, 1 is a bathtub, 2 is a conduit, 3 is a supply section, 4 is a suction port, 5 is a discharge port, 7 is an oxygen enrichment device, and 8 is a pump.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 4-2347
[Problems to be solved by the invention]
However, in the conventional configuration described above, in a bath apparatus equipped with a fine bubble generator and a jet spray device, an oxygen supply unit is provided in the middle of the bubble bath pipe or jet bath pipe, and oxygen-enriched air is supplied to the supply unit. In order to supply oxygen to the bathtub, it is necessary to install a fine bubble generator and jet injection device and have a dedicated bath system, and it cannot be easily installed at home. It was. In addition, since the jet bath system has a large flow rate, it has been difficult to use for a long time in relation to electricity bills, noise, etc., and sufficient oxygen cannot be supplied.
[0006]
The present invention solves the above-described conventional problems, and uses a recirculation circuit of a water heater with a reheating function installed in most households to remove a gas such as high-concentration oxygen from an oxygen enricher. By mixing it and ejecting it from the reheating adapter that discharges the recirculating circulating water installed in the bathtub, it can be installed at low cost without adding a special route, and the circulation flow rate is also small and it is long time. An object of the present invention is to provide an apparatus capable of supplying a gas such as oxygen.
[0007]
[Means for Solving the Invention]
In order to achieve the above object, an oxygen-enriched hot water supply apparatus of the present invention includes a bathtub, a heat exchanger for heating the bathtub water, a bath pump for circulating the bathtub water, and circulating the bathtub water to follow the heat exchanger. and reheating circulation circuit performs fired, and a oxygen enrichment device for generating oxygen, and the bath pump, and the heat exchanger, and the oxygen enrichment device disposed in the water heater main body, said water heater The main body and the bathtub are connected by a pipe that constitutes the recirculation circuit, and oxygen generated by the oxygen enricher is mixed into the bathtub water on the downstream side of the heat exchanger in the water heater main body. Then, it is configured to be ejected to the bathtub.
[0008]
According to the above-described invention, using a reheating device that is a standard function in a hot water heater for baths, the oxygen enrichment device installed in the hot water heater and the mixing means provide a high concentration in the bath water of the reheating circulation circuit. Since gas such as oxygen is mixed, it is only necessary to add an oxygen enrichment device etc. without adding a special route, the structure can be simplified, and high concentration can be easily added to the bath water. Gases such as oxygen can be mixed, and the oxygen concentration in the bathroom can be secured at an appropriate value.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 is a bathtub, a heat exchanger that heats the bathtub water, a bath pump that circulates the bathtub water, and a recirculation circuit that circulates the bathtub water and reheats the heat exchanger. , and a oxygen enrichment device for generating oxygen, and the bath pump, and the heat exchanger, wherein the oxygen enrichment device disposed in the water heater main body, the chase and the water heater main body and the bath It is connected by a pipe that constitutes a circulating circuit, and on the downstream side of the heat exchanger in the water heater body, oxygen generated in the oxygen enricher is mixed into the bath water and jetted to the bath A feature of this is that high-concentration oxygen from the oxygen enricher is mixed into the hot water or water in the reheating pipe, and the hot water or water mixed with this oxygen is ejected from the reheating adapter attached to the bathtub. When the high concentration oxygen bubbles into the bath Passes through the water, then, it comes to fill the bathroom. As a result, the person taking a bath can use the hot water while sucking high-concentration oxygen, thereby promoting the warm bath effect and preventing a nap. In addition, it can be expected that oxygen dissolves in the bath water to suppress generation of germs and reduce sliminess and odor. And if it is this structure, in order to use the reheating circuit which a water heater has, the gas mixing apparatus containing an oxygen enrichment apparatus can be stored in a casing, and an extra space is unnecessary, and it is cheap. It can be manufactured and installed in a general household.
[0010]
The invention according to claim 2, oxygen enrichment device has a oxygen enrichment membrane and a vacuum pump, to increase the oxygen concentration is passed through the air to the oxygen enrichment membrane by said vacuum pump, said oxygen-enriched obtained by placing the vacuum pump to the downstream side of the membrane, oxygen thin film of enrichment device has the role of a filter, in which dust is clogged risk is eliminated to a vacuum pump.
[0011]
【Example】
An embodiment of the present invention will be described below with reference to the drawings.
[0012]
Example 1
FIG. 1 is an overall configuration diagram of an oxygen-enriched hot water supply apparatus according to Embodiment 1 of the present invention. 9 is a water heater main body. 10 is a burner for heating the heat exchanger 12, 11 is a burner fan for sending combustion air to the burner 12, 13 is an exhaust port for combustion gas, 14 is a hot water supply circuit, and water entered from the hot water inlet 15 is the heat exchanger 12. It is heated and discharged from the currant 17 or the like via the hot water supply outlet 16. 18 is a bath pump provided in the recirculation circuit 20, and the circulating water in the recirculation circuit 20 is heated by the heat exchanger 12 through the pipe 19 and then mixed in the recirculation circuit 20. At 27, oxygen-enriched air is mixed. In this case, by using a structure that pulls air by providing a throttle for circulating water, such as an ejector, as the mixing means 27, a large amount of air is introduced if a negative pressure is generated in the flow and oxygen-enriched air is mixed. Can be effective. In this case, not only oxygen-enriched air but also normal air is effective. Here, it is characterized in that oxygen-enriched air is mixed into the circulating water after being heated, and if mixed before being heated, abnormal noise occurs while passing through the heat exchanger 12, This is because corrosion of the heat exchanger 12 may be accelerated.
[0013]
Reference numeral 21 denotes a bathtub, and reference numeral 22 denotes a reheating adapter that discharges bathtub water circulated during a normal reheating operation. 23 is an oxygen-enriched membrane, 24 is a vacuum pump for depressurizing air and passing air between the oxygen-enriched membranes to obtain high oxygen concentration air, and 25 is for sending fresh air to the oxygen-enriched membrane It is a blower fan, and this oxygen-enriched film 23, vacuum pump 24, and blower fan 25 constitute an oxygen enrichment device 26. Then, a built-in the oxygen enrichment device 26 to a water heater main body 9, and constitute an oxygen-enriched water heater the mixing means 27 is also connected to a reheating circulation circuit 20 in the water heater main body 9. In addition, since the vacuum pump 24 is disposed downstream of the oxygen-enriched film 23, the thin film of the oxygen-enriching device 26 serves as a filter, and there is no risk of the vacuum pump 24 becoming clogged with dust. No filter is required.
[0014]
The operation and action of the oxygen-enriched hot water supply apparatus configured as described above will be described. The mixing means 27 mixes high-concentration oxygen from the oxygen enricher 26 into hot water or water in the reheating circuit 20, and the hot water or water mixed with oxygen from the reheating adapter 22 attached to the bathtub 21. When jetting, high-concentration oxygen becomes bubbles 28 and passes through the bath water, and then fills the bathroom. As a result, the person taking a bath can use the hot water while sucking high-concentration oxygen, thereby promoting the warm bath effect and preventing a nap. In addition, it can be expected that oxygen dissolves in the bath water to suppress generation of germs and reduce sliminess and odor. And if it is this structure, in order to utilize the reheating circuit which a water heater has, since the gas mixing apparatus containing the oxygen enrichment apparatus 26 is stored in the casing 9, an extra space is unnecessary and it makes it cheaply. Therefore, it can be installed in a general household.
[0015]
Further, as shown in FIG. 2, as an air supply means, a louver 30 is provided separately from the louver 29 for sucking combustion air into the water heater body case 9, and the air sucked from the louver 30 is the oxygen-rich material. It is configured to be supplied to the chemical film 23, and air is sucked from the gallery 30 opened for the oxygen-enriched film 23 using the suction pressure of the combustion fan 11 of the hot water heater, and the air is enriched with oxygen. The membrane 23 is always supplied with fresh air with a certain strength . Accordingly, the oxygen enriching membrane dedicated fan is not required, Ri Do can be made more simple configuration, it is possible to stably obtain always a high concentration of oxygen.
[0016]
Moreover, by utilizing the suction pressure of the combustion fan water heaters, I was drawn to rattle or we air opening for oxygen enrichment membrane may be fresh air oxygen enrichment membrane in the air. This eliminates the need for a dedicated fan for the oxygen-enriched film and allows a simpler configuration.
[0017]
Further, as a configuration of the mixing means 27 for mixing a gas such as high-concentration oxygen into the recirculation circuit 20, high-concentration oxygen is mixed from the oxygen-enriched film 23 using the negative pressure generated by the restrictor of the ejector. By adopting the configuration, the amount of mixed air is reduced, but the vacuum pump 24 is not required and a movable part is not required, so that a very simple configuration can be achieved.
[0018]
FIG. 3 shows an example of the oxygen enriched film 23. A thin film 32 is attached to the surface of the frame 31, and fresh air 33 is taken out as air 34 with an increased oxygen concentration by passing between the thin films 32 by pressurization or decompression means. Stable performance can be obtained with a simple configuration. Reference numeral 35 denotes air remaining after the oxygen is taken out, which is released into the atmosphere.
[0019]
Further, when the oxygen enrichment device 26 is operated, a sequence for increasing the intake air amount of the combustion fan 11 is incorporated, thereby increasing the intake amount of the combustion air by the amount of oxygen reduced by the oxygen enrichment film 23. You can make up for it.
[0020]
【The invention's effect】
As described above, according to the present invention, by using the recirculation circuit of the water heater with a reheating function, gas such as high concentration oxygen from the oxygen enricher installed in the water heater body is mixed, and the bathtub It is possible to install it at a low cost without adding a special route, and it can be installed in the casing of the water heater, making it compact. In addition, it can be created at low cost, so it can be installed in ordinary households.
[0021]
In addition, it is possible for a person taking a bath to use hot water while sucking high-concentration oxygen, thereby promoting a warm bath effect or preventing a nap. Moreover, even if it is gas other than oxygen and air, the washing | cleaning effect etc. are anticipated by generation | occurrence | production of the ultrasonic wave etc. when a bubble bursts.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of an oxygen-enriched hot water supply apparatus according to an embodiment of the present invention. FIG. 2 is an external view of an oxygen-enriched hot water supply apparatus according to an embodiment of the present invention. Sectional view of the enriched membrane portion of the oxygen-enriched hot water supply device [Fig. 4] Overall configuration diagram of a conventional oxygen supply device [Explanation of symbols]
9 Water heater body 10 Burner (combustion section)
12 Heat Exchanger 18 Pump 20 Recirculation Circuit 21 Bath 22 Reheating Adapter 26 Oxygen Enrichment Device 27 Mixing Means

Claims (2)

A bathtub (21), a heat exchanger (12) for heating the bathtub water, a bath pump (18) for circulating the bathtub water, and a recirculation circuit for circulating the bathtub water and reheating with the heat exchanger and (20), and an oxygen enrichment device for generating oxygen (26), and the bath pump, and the heat exchanger, wherein the oxygen enrichment device disposed in the water heater main body (9) in the The water heater main body and the bathtub are connected by a pipe (19) constituting the recirculation circuit, and oxygen generated in the oxygen enrichment device is downstream of the heat exchanger in the water heater main body. An oxygen-enriched hot water supply apparatus, wherein water is mixed into bathtub water and ejected into the bathtub. The oxygen enrichment device (26) includes an oxygen enrichment film (23) and a vacuum pump (24), and air is passed through the oxygen enrichment film by the vacuum pump to increase the oxygen concentration and the oxygen enrichment. The oxygen-enriched hot water supply apparatus according to claim 1 , wherein the vacuum pump is disposed on the downstream side of the membrane .

Images