JPH06137670A - Bath device - Google Patents

Abstract

PURPOSE:To enable a concentration of carbonic acid gas within bath water within a bath tub to be sufficiently increased within a bath device in which carbonic acid gas resolved in bath water within the bath tub can contribute to a fatigue recovery or a promotion of health and further to perform an effective utilization of hot water boiled up with a hot water feeding machine in the case that carbonic acid gas is resolved in bath water within the bath tub. CONSTITUTION:A forced circulation circuit 4 for performing an enforced circulation of bath water within a bath tub 3 between the bath tub 3 and a gas discharging device 6 is formed and then a discharging gas feeding part 43 for supplying combustion discharging gas from the hot water feeding machine 1 is formed in an upstream side flow passage of the gas discharging device 6 in the forced circulation circuit 4. Hot water boiled up with the hot water feeding machine 1 is fed in an opposite direction to that of a filtering operation against a filter 5 inserted into an additional boiling circuit 32 so as to clean it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath apparatus, and more particularly to a bath apparatus which can contribute to recovery from fatigue and promotion of health by carbon dioxide gas dissolved in bath water in a bath.

[0002]

When bathing in a carbonated spring containing free carbonic acid, the carbonic acid component in the carbonated spring acts on capillaries under the skin to expand the capillaries, thereby improving the blood circulation of the bather. It is possible to recover fatigue and improve health of bathers.
As a bath device in which carbonic acid is dissolved in bathing water in order to recover from such fatigue, for example, Japanese Patent Laid-Open No. 4-20051
There is one described in Japanese Patent No. 2 publication.

As shown in FIG. 2, the combustion exhaust passage of the water heater (1)
(10) is a pump (P) and a carbon dioxide separator on the downstream side.
(2) is provided. In addition, the hot water supply circuit (13) that connects the hot water supply device (1) to the hot water tap (12) near the bathtub (3) is equipped with a dissolution chamber (15) for dissolving carbon dioxide in the hot water supplied. The carbon dioxide gas from the carbon dioxide gas separator (2) described above is supplied to the dissolution chamber (15) through the check valve (16).

In this case, when the hot water tap (12) is opened and hot water is supplied to the bathtub (3), the combustion exhaust gas generated by the gas burner (26) of the water heater (1) is sucked by the pump (P) to generate carbon dioxide. The carbon dioxide gas is supplied to the gas separation device (2), which produces concentrated carbon dioxide gas. Then, the carbon dioxide gas concentrated in the carbon dioxide gas separation device (2) is pressure-fed to the dissolution chamber (15) in the hot water supply circuit (13) through the check valve (16), and the dissolution chamber (15) is discharged.
Inside (15) it is exposed to hot water from the water heater (1). As a result, the carbon dioxide gas is dissolved in the warm water to generate carbonated water. Then, the carbonated water is discharged from the tap tap (12) in the open state and supplied into the bath (3).

However, in the above-mentioned prior art, it is practically impossible to sufficiently increase the carbonic acid concentration of the bathing water in the bathtub (3), and the effect of fatigue recovery due to bathing cannot be expected so much. was there. The above problems will be described in more detail. In the above-mentioned conventional one, the concentrated carbon dioxide gas generated in the carbon dioxide gas separation device (2) is brought into contact with the hot water in the dissolution chamber (15), so that the former concentrated carbon dioxide gas is naturally dissolved in the latter hot water. I have to. Therefore, in order to increase the carbonic acid concentration of the bathing water, by decreasing the flow rate of hot water discharged from the hot water tap (12), the contact time of the carbon dioxide gas and hot water in the dissolution chamber (15) is lengthened, It is desirable to fill the bathtub (3) with water for a sufficient amount of time.

However, because of the demand for shortening the time required for filling the water, the amount of hot water discharged from the tap (12) cannot be reduced so much that the time for filling the water is increased to increase the carbonate concentration of the bath water. Is limited. Therefore, in the above-mentioned conventional one, the carbonate concentration in the hot water taken out from the tap (12) becomes insufficient, and the carbonate concentration of the bathing water in the bathtub (3) cannot be sufficiently increased. is there.

The present invention has been made in view of the above points, and makes it possible to sufficiently increase the carbonic acid concentration of bathing water in the bathtub (3), thereby facilitating the effects such as fatigue recovery based on bathing. The task is to be able to do so.

[0008]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is to provide a “forced circulation circuit for forcibly circulating bathing water in a bath (3) between the bath (3) and a gas discharge device (6). (4) to form the gas discharge device (6) in the forced circulation circuit (4)
The exhaust gas injection part (43) for supplying the combustion exhaust gas from the water heater (1) is formed in the upstream flow path of the above.

[0009]

The above technical means operates as follows. Bathtub
(3) To improve the carbonic acid concentration of the bath water stored inside, the water heater (1) should be operated. Then, the water heater (1)
The combustion exhaust gas generated in the gas burner is supplied from the exhaust gas injection portion (43) into the circulating water in the forced circulation circuit (4), and the carbon dioxide gas contained in the combustion exhaust gas is dissolved in the circulating water.

The phenomenon that the carbon dioxide gas is dissolved in the circulating water in the forced circulation circuit (4) is caused by the gas exhausting device (6) in which the circulating water is disposed downstream of the exhaust injection part (43). ) Progresses further. Also, excess carbon dioxide and other harmful components that do not dissolve in the circulating water in the forced circulation circuit (4)
It is discharged into the atmosphere at the gas discharge device (6) part,
As a result, the bath water containing carbon dioxide is forced into the circulation circuit.
It is supplied to the bathtub (3) from the discharge port of (4). Then, if the circulation operation by the forced circulation circuit (4) is continued,
The above operation of dissolving carbon dioxide gas in the limited bathing water in the bathtub (3) is repeated, thereby cumulatively increasing the carbonic acid concentration of the bathing water in the bathtub (3). Therefore, the carbonate concentration of the bathing water in the bathtub (3) can be made sufficiently high.

[0011]

[Effect] The present invention has the following unique effects. Since the carbonate concentration of the bathing water in the bathtub (3) can be made sufficiently high, it is possible to promote the effects such as fatigue recovery based on the bathing as compared with the above-mentioned conventional one.

[0012]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. In the forced circulation circuit (4) connecting the bathtub (3) and the circulation pump (41), a gas discharge device (6) is arranged downstream of the circulation pump (41), and the gas discharge device (6) is arranged. apparatus
(6) is a gas-liquid separator (61) that recovers the combustion exhaust that is not dissolved in the circulating water in the forced circulation circuit (4) described later, and exhaust that forcibly discharges the recovered combustion exhaust to the atmosphere. It is composed of a device (62). Further, on the upstream side of the circulation pump (41), a joint (44) corresponding to the exhaust injection part (43) described in the above-mentioned technical means section is arranged, and the joint (44) is provided. Is
A downstream end of a gas circuit (17) for taking out combustion exhaust from the combustion exhaust passage (10) of the water heater (1) is connected. And, in the vicinity of the connecting portion of the joint (44) in the gas circuit (17),
An exhaust gas valve (21) is provided.

Further, an exhaust gas suction pipe (18) having a large number of through holes on the outer periphery is provided at the upstream end of the gas circuit (17), and the exhaust gas suction pipe (18) is the above-mentioned water heater. It is arranged in the combustion exhaust passage (10) of (1). Next, in the reheating circuit (32) that circulates the side wall of the bathtub (3) and the reheating heat exchanger (31), it is located on the upstream side of the reheating heat exchanger (31) and filtered. Bowl (5)
The additional heating pump (33) is sequentially arranged in this order toward the upstream side. The filter (5) is filled with a filter material (54) for adsorbing and removing dust in the water passing through the filter (5), and further, the filter in the reheating circuit (32).
A cleaning drain valve (52) and a cleaning water supply valve (51) are arranged near the upstream side and the downstream side of (5).

The washing and draining valve (52) is designed so as to perform switching operation so that the inlet side of the filter (5) is selectively connected to the reheating pump (33) and the drainage circuit (56). There is. On the other hand, a washing hot water supply pipe (57) is connected to the washing water supply valve (51), and the upstream end of the washing hot water supply pipe (57) is branched from the hot water supply circuit (11) of the water heater (1). Hot water circuit (14)
It is connected to the. The washing water supply valve (51) is a heat exchanger for additional heating of the additional heating circuit (32) on the outlet side of the filter (5).
The operation for selectively switching between the (31) side and the cleaning hot water supply pipe (57) side is performed.

The hot water filling circuit (14) branched from the hot water supply circuit (11) is connected near the downstream end of the reheating circuit (32), and hot water is supplied to the hot water supply circuit (14). A valve (19) and a water filling valve (190) downstream thereof are provided. Next, the actual operation of the bath apparatus of the above embodiment will be described. When a water filling switch (not shown) is turned on, the gas burner (26) burns and hot water is supplied from the water heater (1), and the hot water supply valve (19) and the water filling valve (190) open and the bath (3 ) The inside water filling operation proceeds. When the water level in the bathtub (3) reaches the set water level, a water level sensor (not shown) detects this and the hot water supply valve (19) and the water filling valve (190) are closed to stop the water filling operation. .

When the temperature in the bathtub (3) decreases, a temperature sensor (not shown) detects this and the reheating pump (33) operates and the reheating burner (36) for the reheating heat exchanger (31). ) Burns. As a result, the bathing water in the bathtub (3) will be pumped by the reheating pump.
(33) → Filter (5) → Heat exchanger for reheating (31) → Bath (3) is circulated and heated to reheat the bath (3) to the set temperature.
In addition, at the time of this reheating, the washing drain valve (52) should be in a position to connect the reheating pump (33) and the filter (5), and the washing water supply valve (51).
Maintains the posture in which they connect the filter (5) and the heat exchanger (31) for reheating.

Next, the operation for increasing the carbonate concentration of the bathing water in the bath (3) will be described. When a carbonated spring switch (not shown) is turned on, the gas burner (26) of the water heater (1) begins to burn and the exhaust gas valve (21) arranged in the gas circuit (17)
Opens. Further, the circulation pump (41) and the exhaust device (62) are driven. Then, by circulating the circulation pump (41),
The bath water in (3) is circulated in the forced circulation circuit (4), and the ejector effect based on the flow of this circulating water causes the water heater.
Combustion exhaust gas generated in the combustion exhaust passage (10) of (1) is mixed with the bath water circulating in the forced circulation circuit (4). That is, the combustion exhaust is the combustion exhaust passage (10) of the water heater (1).
Exhaust gas suction pipe (18) arranged inside → Gas circuit (17) → Exhaust gas valve (21) → Joint (44) → Bath flowing in the forced circulation circuit (4) through the route of forced circulation circuit (4) It is mixed with water.

Then, the water in the forced circulation circuit (4) containing the combustion exhaust gas is separated by the action of the circulation pump (41).
Most of the carbon dioxide gas in the combustion exhaust gas is dissolved in the water in the forced circulation circuit (4) while being sent to the (61) portion and reaching the gas-liquid separator (61). Excess carbon dioxide gas and carbon monoxide that are not dissolved in water in the forced circulation circuit (4) are separated by the exhaust gas (62) when they reach the gas-liquid separator (61). Released inside.

As a result, the water flowing out of the gas-liquid separator (61) contains a predetermined amount of carbon dioxide gas, and the water containing the carbon dioxide gas is supplied into the bathtub (3) to bathe water. The concentration of carbonic acid is increased, so that the inside of the bath (3) is in a state of carbonated spring. On the other hand, when performing the above operation to improve the carbonic acid concentration of bathing water in the bathtub (3), the water heater (1)
The hot water generated by heating in (1) flows backward through the filter (5) arranged in the reheating circuit (32) to wash it.

That is, during the above operation, the hot water supply valve (19) is opened, and the cleaning drainage valve (52) and the cleaning water supply valve (51) disposed in the upper and lower flow passages of the filter (5) are The drainage circuit (56) and the washing hot water supply pipe (57) are connected to each other, so that the hot water supplied from the water heater (1) is
4) → Washing hot water supply pipe (57) → Washing water supply valve (51) → Filter (5)
→ Flow through the flush drain valve (52) → drain circuit (56). As a result, the hot water supplied from the water heater (1) is supplied to the reheating circuit (32).
When the hot water passes through the inside of the filter (5) in the direction opposite to the direction through which the hot water passes through the filter (5) during reheating, and the hot water passes through in the opposite direction, the filter (5 ) Discharge dirt such as scales adhering to the filter medium (54) inside from the drainage circuit (56) to the outside.

As described above, the inside of the filter (5) is backwashed with the hot water supplied from the water heater (1).
Compared to the case where the hot water generated by heating in (1) is simply discharged, there is an advantage that the hot water can be effectively used. Further, since the inside of the filter (5) is washed with warm water, oil and the like can be removed more easily and a higher washing effect can be obtained as compared with the case of washing with cold water.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 (1) ・ ・ ・ Water heater (3) ・ ・ ・ Bathtub (4) ・ ・ ・ Forced circulation circuit (5) ・ ・ ・ Filter (6) ・ ・ ・ Gas discharge device (32) ・ ・ ・ Reheating circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masayoshi Eguchi, 2-26, Fukuzumi-cho, Nakagawa-ku, Nagoya City, Rinnai Co., Ltd. (72) In-house, Junji Otsuka 2-26, Fukuzumi-cho, Nakagawa-ku, Nagoya City, Rinnai Corporation ( 72) Inventor Masaya Hamamoto 2-26, Fukuzumicho, Nakagawa-ku, Nagoya-shi Rinnai Co., Ltd. (72) Hiroaki Kumazawa 2-26, Fukuzumicho, Nakagawa-ku, Nagoya-shi Rinnai Co., Ltd. (72) Masayuki Okuyama, Nagoya-shi Toho Gas Co., Ltd. 19-18 Sakurada-cho, Atsuta-ku (72) Inventor Akira Okamoto 507-2 Shintakaracho, Tokai-shi, Aichi Toho Gas Co., Ltd.

Claims (2)

[Claims] 1. A forced circulation circuit (4) for forcibly circulating the bathing water in the bathtub (3) between the bathtub (3) and the gas discharge device (6) is formed in the forced circulation circuit (4). The above gas discharge device
A bath apparatus in which an exhaust injection part (43) for supplying combustion exhaust gas from the water heater (1) is formed in the upstream flow path of (6). 2. A reheating circuit (32) circulating between the bath (3) and the heat exchanger (31) for reheating, and a reheating pump (33) arranged in the reheating circuit (32). A filter (5) for water, and further the filter
Provide a drainage circuit (56) branched from near the upstream side of (5),
When hot water is generated by the water heater (1) when the operation to raise the carbonic acid concentration of the bath water in the bathtub (3) is performed, the hot water flows in the reverse direction from the time when the hot water is added to the filter (5). 2. The bath apparatus according to claim 1, wherein water is passed through to the outside of the machine from the drain circuit (56).