JP2005076947A - Water heater having re-heating function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce operating noise by reducing compression sound when oxygen is jetted out of a bath adaptor in oxygen mixing re-heating operation. <P>SOLUTION: A water heater comprises a re-heating circulation circuit 20 for circulating hot water in a bath 21 by a pump 18; a re-heating adaptor 22 provided in the bath 21; a mixing means 27 for mixing gas into the re-heating circulation circuit 20. Gas mixed into the re-heating circulation circuit 20 is jetted out of the re-heating adaptor 22, and the re-heating adaptor 22 is composed so that the passage area of the jet-out path is more than the passage area of a circulation circuit. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a hot water supply apparatus having a function of supplying a gas such as oxygen into bath water in a bath using a reheating pipe of a water heater having a recirculation circuit.

  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).

FIG. 9 shows an oxygen supply apparatus for a conventional bathtub described in the above-mentioned document. 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.
JP-A-4-2347

  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.

  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.

  In order to achieve the above object, a hot water supply device with a reheating function of the present invention is a recirculation circuit in which hot water in a bathtub is circulated by a pump, a reheating adapter provided in the bathtub, and gas is mixed into the recirculation circuit And a means for ejecting the gas mixed in the recirculation circuit from the retreat adapter so that the passage area of the ejection path does not become less than half of the passage area of the recirculation circuit. It is configured.

  According to the above invention, it is possible to easily obtain a higher concentration of oxygen or the like by adding an oxygen enrichment device or the like to the reheating device that is always used, and gas is mixed into the circulation circuit. Thus, the problem that annoying noise is generated due to the gas being compressed is also solved.

  As described above, according to the present invention, if the oxygen generator is mixed in the circulation flow path, the bathing person can use the hot water while sucking high-concentration oxygen to promote the bathing effect or to doze. It becomes possible to prevent. 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. And if it is this structure, since it will fit in the casing of a water heater, an extra space is unnecessary, and since it can produce at low cost, the installation to a general household is also possible. In addition, when gas is mixed into the circulation circuit and ejected, the problem that annoying noise is generated because the gas is compressed is also solved.

  The invention according to claim 1 forms a recirculation circuit that circulates bathtub water by a pump and heats it with a heat exchanger to retreat the bath, and forms a suction port and a discharge port of the recirculation circuit provided in the bathtub. A reheating adapter, an oxygen enricher that generates high-concentration oxygen, and a mixing means that is provided downstream of the heat exchanger and mixes gas generated in the oxygen enricher into the recirculation circuit, A hot water supply apparatus with a reheating function configured to eject the gas mixed in the recirculation circuit from the reheating adapter, wherein the reheating adapter has a passage area of an ejection path that is half of a passage area of the circulation circuit. The present invention is characterized in that it does not become the following.

  Then, a gas such as high-concentration oxygen from the oxygen enricher is mixed into the hot water or water in the additional piping by the mixing means, and the additional adapter in which the hot water or water mixed with oxygen is attached to the bathtub. When ejected from the water, a gas such as high-concentration oxygen forms bubbles 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, the effect of reducing the slime and odor by suppressing the generation of various germs by dissolving oxygen in the bath water can be expected.

  Furthermore, even if it is gas other than oxygen and air, a cleaning effect etc. are anticipated by the generation | occurrence | production of the ultrasonic wave etc. when a bubble bursts.

  And if it is this structure, since the reheating circuit which a water heater has is used, the gas mixing apparatus containing an oxygen enrichment apparatus can be stored in a casing, and an extra space is unnecessary and it manufactures cheaply. It can be installed in a general household.

  In addition, when gas is mixed into the circulation circuit, if the gas is compressed by being squeezed by the ejection nozzle portion of the reheating adapter, an unpleasant sound will be generated when it is released. Since the passage area of the ejection path is configured not to be less than half of the passage area of the circulation circuit, the compression of the gas is suppressed as much as possible so that no annoying sound is generated. In the confirmation result, when the passage area of the ejection path becomes less than half, the burst noise of the bubbles increases rapidly and the noise increases.

  The invention according to claim 2 is characterized in that the ejection passage of the chasing adapter is constituted by a pipe having substantially the same cross-sectional area, and the flow is rectified while passing through the pipe without generating noise. It is possible to obtain substantially the same effect as when a diaphragm is provided.

  The invention described in claim 3 is characterized in that it is constituted by a pipe in which the cross-sectional area of the ejection passage of the chasing adapter gradually decreases, and the flow rectifying effect is promoted and the flow including bubbles far away Can be ejected.

  The invention according to claim 4 is characterized in that the jet passage of the chasing adapter is provided with an inclination in a diagonally downward direction, and hot water ejected from the nozzle portion when chasing is going downward, Bubbles are ejected almost to the front due to the effect of buoyancy, so that the bubbles can be safely applied to the body.

  The invention described in claim 5 is characterized in that the ejection passage of the chasing adapter is made of a material having elasticity, and the elastic body can be used even when bubbles are compressed by closing the ejection port. It is possible to absorb the impact and prevent noise.

  The invention described in claim 6 is characterized in that the ejection passage is configured to be rotatable about an axis, and the ejection direction of the bubbles can be arbitrarily changed.

  FIG. 1 is an overall configuration diagram of an oxygen-enriched hot water supply apparatus according to an embodiment of the present invention. 9 is a hot water supply device body, 10 is a burner that heats the heat exchanger 12, 11 is a burner fan that sends combustion air to the burner 12, 13 is an exhaust port for the combustion air, 14 is a hot water supply circuit, and water entering from the hot water supply inlet 15 Is heated by the heat exchanger 12, exits from the hot water supply outlet 16, and is discharged from the currant 17 or the like. Reference numeral 18 denotes a bath pump provided in the recirculation circuit 20, and the circulating water discharged therefrom is heated by the heat exchanger 12 while passing through the pipe 19, and then oxygen-enriched air is mixed by the mixing means 27. 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, a large amount of air can be introduced by generating negative pressure in the flow and mixing oxygen-enriched air. Can be effective. In this case, not only oxygen-enriched air but also normal air is effective.

  Here, the oxygen-enriched air is mixed after being heated before it is heated, which may cause abnormal noise during passage through the heat exchanger or promote corrosion of the heat exchanger. Because there is. 21 is a bathtub and 22 is a chasing adapter. 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 the oxygen enrichment device 26 is constituted by these 23, 24, and 25. Since this vacuum pump 24 is disposed downstream of the oxygen-enriched membrane, the thin membrane of the oxygen-enriching device serves as a filter, and there is no risk of clogging the vacuum pump, so a vacuum pump filter is not required. is there.

  The operation and action of the hot water supply device with a reheating function configured as described above will be described below.

  High-concentration oxygen from the oxygen enricher 26 is mixed into the hot water or water in the reheating circuit 20 by the mixing means 27, and this hot water or water mixed with oxygen is supplied 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, since it fits in the casing 9 of a water heater, an extra space is unnecessary, and since it can also be produced at low cost, it can be installed in a general home.

  Further, as shown in FIG. 2, a hot water supply body case 9 is provided with a louver 30 (29 is a louver for sucking in combustion air) as air supply means, and the air sucked from the louver 30 is enriched in the oxygen. It is configured to be supplied to the membrane 23, and air is sucked from the gallery 30 opened for the oxygen-enriched membrane 23 using the suction pressure of the combustion fan 11 of the water heater, and the oxygen-enriched membrane is used by the air. 23 fresh air.

  This eliminates the need for a dedicated fan for the oxygen-enriched film and allows a simpler configuration.

  Further, by using the negative pressure generated by the throttle portion of the ejector to mix high concentration oxygen from the oxygen enriched film 23, the amount of mixed air is reduced, but the vacuum pump 24 is not necessary. Since a movable part is unnecessary, a very simple configuration can be achieved.

  FIG. 3 shows an example of the oxygen-enriched film. 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.

  FIG. 4 shows an embodiment of the tracking adapter 22. The ejection path 36 and the nozzle 37 are configured such that the passage area A does not become less than half of the passage area of the circulation circuit 39 (blowing side). Reference numeral 38 denotes a guide for supporting the ejection path, and reference numeral 40 denotes a suction side circulation circuit. With this structure, the flow mixed with bubbles from the circulation circuit 39 hardly compresses the gas, so that no annoying sound is generated.

  FIG. 5 shows another embodiment of the tracking adapter 22. In this case, the ejection path 41 is constituted by a pipe whose cross-sectional area gradually decreases, and the flow rectifying effect is promoted to eject a flow including bubbles far away.

  FIG. 6 is a view in which the ejection passage 42 is directed obliquely downward. As shown in the figure, the hot water ejected from the nozzle portion goes downward, and the bubbles are ejected almost to the front due to the effect of buoyancy. It will be possible to safely apply air bubbles to the body.

  FIG. 7 shows a structure in which the ejection passage 43 is made of an elastic material, and the elastic body absorbs the impact and does not generate noise even when the ejection port is blocked and the bubbles are compressed. Is possible.

  In FIG. 8, the ejection passage 44 is made rotatable about an axis, and the ejection direction of bubbles can be arbitrarily changed.

1 is an overall configuration diagram of an oxygen-enriched hot water supply apparatus according to an embodiment of the present invention. External view of the oxygen-enriched water heater Sectional view of the enriched membrane part of the oxygen-enriched hot water supply system Cross section of reheating adapter of the oxygen-enriched water heater Sectional view of another reheating adapter of the oxygen-enriched hot water supply system Sectional view of another reheating adapter of the oxygen-enriched hot water supply system Sectional view of another reheating adapter of the oxygen-enriched hot water supply system Front view of another reheating adapter of the oxygen-enriched water heater Overall configuration diagram of a conventional oxygen supply device

Explanation of symbols

18 Pump 20 Recirculation circuit 21 Bath 22 Reheating adapter 26 Oxygen enricher 27 Mixing means 36 Ejection path

Claims (6)

A recirculation circuit that circulates bathtub water by a pump and heats it by a heat exchanger to retreat the bath, a reheating adapter that is provided in the bathtub and forms a suction port and a discharge port of the recirculation circuit, and a high concentration An oxygen enricher that generates oxygen; and a mixing unit that is provided on the downstream side of the heat exchanger and mixes the gas generated in the oxygen enricher into the recirculation circuit, and is mixed into the recirculation circuit A hot water supply device with a tracking function configured to eject gas from the tracking adapter, wherein the tracking adapter is configured such that the passage area of the ejection path is not less than half of the passage area of the circulation circuit. Hot water heater with function. The hot water supply device with a reheating function according to claim 1, wherein the ejection passage of the reheating adapter is constituted by a pipe having substantially the same cross-sectional area. The hot water supply device with a reheating function according to claim 1, wherein the hot water supply device is constituted by a pipe whose cross-sectional area of the ejection passage of the reheating adapter gradually decreases. The hot water supply device with a reheating function according to claim 2 or 3, wherein the ejection passage of the reheating adapter is inclined obliquely downward. The hot water supply apparatus with a reheating function according to claim 2 or 3, wherein the ejection passage of the reheating adapter is made of an elastic material. The hot water supply device with a reheating function according to claim 4, wherein the ejection passage is rotatable about an axis.

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