JP2573129B2 - Bath equipment - Google Patents

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 health promotion by carbon dioxide dissolved in bathing water.

[0002]

2. Description of the Related Art When bathing in a carbonated spring containing free carbonic acid, the carbonated component in the carbonated spring acts on capillaries under the skin to expand them, thereby improving the blood circulation of the bather and recovering from fatigue. And health promotion. A bath apparatus as shown in FIG. 2 has been proposed as a bath apparatus in which carbon dioxide gas is dissolved in bathing water in order to recover fatigue or the like.

A circulation pump (41) is provided in a circulation flow path (4) connecting the bathtub (3) and the gas discharge device (6), and a hot water supply is provided upstream of the circulation pump (41). The downstream end of a gas circuit (17) for sucking the combustion exhaust gas of the machine (1) is connected. When a carbonated spring switch (not shown) is turned on, the gas burner (26) of the water heater (1) burns, the circulating pump (41) and the gas exhaust device (6) operate, and the combustion exhaust gas of the water heater (1) sucks exhaust gas. The pipe (18) → the gas circuit (17) → the circulation channel (4) is sucked and supplied to the water flowing through the channel.

[0004] Then, the carbon dioxide gas in the combustion exhaust gas supplied into the water flow in the circulation flow path (4) is almost completely removed while being sent to the gas exhaust device (6) downstream of the flow path. Dissolve in. Excessive harmful components such as carbon dioxide and carbon monoxide which do not dissolve in the water flow in the circulation flow path (4) are separated at the gas discharge device (6) and released to the atmosphere. Afterwards
The water containing a predetermined amount of carbon dioxide gas is supplied into the bathtub (3) from the gas discharge device (6), and this is turned into a carbonated spring.

[0005] However, in the case of the above, there is a case where the bathroom is left as it is while being air-contaminated with carbon monoxide, and there is a problem that safety cannot be sufficiently secured.
The above problem will be described in more detail. Although the gas burner (26) is designed so that the gas can be completely burned, a slight amount of carbon monoxide may be contained in the combustion exhaust gas due to various factors. For example, immediately after burner ignition when the temperature of the gas combustion chamber is low, the flame temperature does not rise sufficiently, so that an incomplete combustion state occurs temporarily and carbon monoxide is generated.

Accordingly, the bath water in the bath tub (3) often contains a small amount of carbon monoxide in addition to the carbon dioxide gas, and the carbon monoxide escapes from the bath water and enters the bathroom. If it diffuses into the bathroom, the interior of the bathroom is contaminated with the carbon monoxide, and sufficient safety cannot be ensured. The present invention has been made in view of such a point, "dissolve the combustion exhaust of the gas burner (26) in bathing water bath (3)
In a bath apparatus in which the inside is in the state of a carbonated spring, it is an object of the present invention to prevent the inconvenience of leaving the bathroom in a state of being air-contaminated with carbon monoxide. [About the invention of claim 1]

[0007]

The technical means of the present invention for solving the above-mentioned problem is as follows: a concentration determining device for outputting an abnormal signal when the concentration of carbon monoxide in a bathroom exceeds a set value; A ventilating device is provided, and when the concentration determination device outputs the abnormal signal, the ventilating device is operated.

[0008]

The above technical means operates as follows. When the operation of increasing the carbon dioxide concentration in the bathing water is being performed, the concentration determination device constantly monitors the carbon monoxide concentration in the bathroom. The carbon monoxide dissolved in the bathing water escapes from the bathing water and diffuses into the bathroom, whereby when the concentration of carbon monoxide in the bathroom exceeds a set value, the concentration determination device determines this state and determines the state. An abnormal signal is output from the device. Then, the ventilation device is activated by the abnormal signal, whereby the contaminated air in the bathroom is discharged and fresh outside air is taken in. Therefore, according to the above technical means, the bathroom is not left in a state of being air-polluted with carbon monoxide.

[0009]

The invention of claim 1 has the following unique effects. Since the bathroom is not left in a state of being polluted with carbon monoxide, safety during bathing can be ensured. [About the invention of claim 2]

[0010]

The technical means according to the second aspect of the present invention includes a concentration judging device for outputting an abnormal signal when the concentration of carbon monoxide in a bathroom exceeds a set value, and an alarm device provided in the bathroom. And the alarm device is activated when the abnormal signal is output from the concentration determination device. "

[0011]

According to the above technical means, when the air in the bathroom is contaminated with carbon monoxide, an abnormal signal is output from the concentration judging device in the same manner as in the first aspect of the present invention. Then, when the abnormal signal is output, the alarm device in the bathroom is driven by the signal, whereby the bather is informed of the necessity of ventilation and the like, so that safety can be ensured.

[0012]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. A circulation flow path (4) is formed between the bathtub (3) and the circulation pump (41) in the same manner as in the prior art described above, and the circulation pump (41) includes a discharge water pressure in this embodiment. A pressure dissolution pump capable of adjusting the pressure to 6 kgf / cm ² is used.

A gas discharge device (6) is provided downstream of the circulation pump (41). The gas discharge device (6) dissolves in the circulating water in the circulation flow path (4). It has a function of collecting unburned combustion exhaust and releasing it to the atmosphere. A downstream end of a gas circuit (17) drawn from a combustion exhaust passage (10) of a water heater (1) is connected to a three-way joint (44) disposed upstream of the circulation pump (41). And the gas circuit (1
At the upstream end of (7), an exhaust gas suction pipe (18) having a large number of through holes on the side wall is provided, and the exhaust gas suction pipe (18) is connected to the combustion exhaust path (10) of the above-described water heater (1). ).

The gas suction pipe in the gas circuit (17)
Downstream of (18), an electric heater (7) for drying the combustion exhaust gas in the gas circuit (17) is provided. The electric heater (7) is provided so that the combustion exhaust gas passing through the gas circuit (17) is heated and dried, and thereby the exhaust gas valve (21) on the downstream side thereof is provided.
This is to prevent the deterioration of the valve body and the rubber for sealing (weak against the water generated by combustion in the combustion exhaust gas).

A remote control device (88) is provided on the wall surface of the bathroom (A) for operating the bathtub (3) in a carbonated spring state or performing a hot water filling operation. (8
8) is provided with a carbonated spring switch (85) in addition to a hot water switch and a reheating switch (not shown). Also, the remote control device (88) has a CO for detecting the concentration of carbon monoxide.
A sensor (8) is incorporated. Further, a ventilation device (72) and an alarm device (73) are provided on the wall surface of the bathroom (A), and these are electrically connected as shown in FIG.

The output of the CO sensor (8) is supplied to a reference value setting device (81).
Is applied to a comparator (82). The output of the reference value setting device (81) is set to the same value as the output value that the CO sensor (8) outputs when the concentration of carbon monoxide in the bathroom exceeds the allowable value. In this embodiment,
The combination of the CO sensor (8), the reference value setting device (81) and the comparator (82) corresponds to the concentration determination device described in the section of the technical means. Then, the ventilation device (72) and the alarm device (73) are driven by the output of the comparator (82).

Next, the output of the carbonated spring switch (85) is TFF
(83) is applied to the clock input section, and the TFF (83)
The output of the gas valve (261) inserted in the gas circuit (260) to the gas burner (26) and the exhaust gas valve (2) in the gas circuit (17)
1) is opened and closed. In addition, the TFF (8
The output of (3) causes the electric heater (7) arranged in the gas circuit (17) to generate heat and to drive the circulation pump (41) inserted in the circulation flow path (4).

Next, the side wall of the bathtub (3) and the additional heat exchanger (3)
In the reheating circuit (32) circulating 1), the reheating heat exchanger (31)
And the recirculation pump (3)
3) are sequentially arranged in this order toward the upstream. The filter (5) is filled with a filter medium (54) for adsorbing and removing dust in the water passing through the filter (5), and is further filled with a filter (5) in the reheating circuit (32). Washing drain valve (52) and washing water supply valve (51)
Are arranged.

The washing / drain valve (52) performs an operation of switching the inlet side of the filter (5) so as to be alternatively connected to a reheating circulation pump (33) and a drain circuit (56). ing.
On the other hand, a cleaning hot water supply pipe (57) is connected to the cleaning water supply valve (51), and an upstream end of the cleaning hot water supply pipe (57) is
The hot water supply circuit (1) branched from the hot water supply circuit (11) of the water heater (1)
4) Connected to. And the washing water supply valve (51)
An operation of selectively switching the outlet side of the filter (5) to the reheating heat exchanger (31) of the reheating circuit (32) and the cleaning hot water supply pipe (57) is performed. I have.

A hot water supply circuit (14) branched from the hot water supply circuit (11) is connected near the downstream end of the additional heating circuit (32), and is supplied to the hot water supply circuit (14). A valve (19) and a hot water filling valve (190) are provided. Next, the actual operation of the bath apparatus of the above embodiment will be described. When a hot water switch (not shown) provided on the remote control device (88) is turned on, the gas burner (26) burns and hot water is supplied from the water heater (1), and the hot water valve (19) and the hot water valve (190) are turned on. ) Is opened and the filling operation in the bathtub (3) proceeds. And the bathtub
(3) When the internal water level reaches the set water level, a water level sensor (not shown) detects this and the hot water supply valve (19) and the hot water filling valve (190) are closed, and the hot water filling operation stops.

Next, when the temperature inside the bathtub (3) drops naturally, a temperature sensor (not shown) detects this, and the reheating circulation pump (33) operates and the reheating heat exchanger (31) is used. The reburner (36) burns. As a result, the bath water in the bathtub (3) is circulated and heated by the reheating circulation pump (33) → the filter (5) → the reheating heat exchanger (31) → the bathtub (3) and the bathtub (3). The inside is reheated to the set temperature. In addition, at the time of this reheating, the washing drain valve (52) is in the position connecting the reheating circulation pump (33) and the filter (5), and the cleaning water supply valve (51) is connected to the filter (5). The posture of connecting the additional heat exchanger (31) is maintained.

Next, the operation for increasing the carbon dioxide concentration of the bath water in the bathtub (3) will be described. When the carbonated spring switch (85) arranged on the remote control device (88) is turned on, the gas valve (261) is opened by the output of the TFF (83), and the ignition device (not shown) is activated to activate the gas burner (26). Is maintained. The output of the TFF (83) allows the gas circuit (1
The electric heater (7) in (7) is heated, and the exhaust gas valve (21) in the gas circuit (17) is opened.
The circulation pump (41) in the circulation flow path (4) is driven.

Then, the bath water in the bathtub (3) starts to circulate in the circulation flow path (4) in the same manner as the prior art, and the ejector effect based on the flow of the circulating water causes the water heater (1) to operate. Combustion exhaust path
The combustion exhaust gas generated in (10) is mixed with the bath water circulating in the circulation flow path (4). That is, the combustion exhaust gas is supplied to an exhaust gas suction pipe (18) provided in a combustion exhaust passage (10) of a water heater (1) → a gas circuit (17) → an exhaust gas valve (21) → a three-way joint.
The water is mixed with the bathing water flowing in the circulation channel (4) through the route of (44) → circulation channel (4). Thereafter, as in the prior art described above, the water in the circulation flow path (4) containing the combustion exhaust gas is:
By the action of the circulation pump (41), the gas is sent to the gas exhaust device (6), and most of the carbon dioxide in the combustion exhaust gas reaches the gas exhaust device (6) before reaching the gas exhaust device (6). ) Dissolve in water. When dissolving the carbon dioxide gas, the dissolution of the carbon dioxide gas is promoted by the pressing force of the circulation pump (41) (in this embodiment, the pressurized dissolution pump is employed as described above). When the excess carbon dioxide and carbon monoxide that do not dissolve in the water in the circulation flow path (4) reach the gas discharge device (6), they are separated by this and released into the atmosphere.

As a result, the water flowing out of the gas discharge device (6) contains a predetermined amount of carbon dioxide gas, and the water containing the carbon dioxide gas is supplied into the bathtub (3), and the water contained in the bath tub (3) is carbonated. The concentration is increased, whereby the inside of the bathtub (3) is turned into a carbonated spring. On the other hand, during the above operation, the concentration of carbon monoxide in the bathroom (A) is constantly monitored by the CO sensor (8) and the comparator (82) for judging its output. And the bathroom
(A) The inside of the CO sensor is air-contaminated with carbon monoxide.
When the output of (8) exceeds the set value of the reference value setting device (81),
An abnormal signal is output from the comparator (82), and the alarm device (73) is activated by the abnormal signal. That is, the alarm device (73) issues an alarm sound or blinks a lamp to notify the bather of an abnormal state. The output of the comparator (82) drives the ventilator (72) to ventilate the bathroom (A).
The inside air is replaced by the fresh air outside and the safety condition can be ensured.

In the above embodiment, the ventilator (72) is operated only when the concentration of carbon monoxide in the bathroom (A) exceeds the set value. However, not only in this case, but also in the bathtub (3). The ventilator (27) may be operated for a fixed time after the operation of setting the inside of the inside to the carbonated spring state is completed, or after a predetermined time has elapsed. During the above operation for increasing the carbonic acid concentration of the bathing water, the hot water generated by heating in the water heater (1) is supplied to the filter (5) disposed in the reheating circuit (32).
It is designed to backwash and wash it.

That is, in 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 hot water supplied from the water heater (1) is connected to the drain circuit (56) and the cleaning hot water supply pipe (57), respectively.
4) → Washing hot water supply pipe (57) → Washing water supply valve (51) → Filter (5)
→ It flows from the washing drain valve (52) to the 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 filter (5) in a direction opposite to the direction in which the water passes through the filter (5) at the time of additional heating, and the hot water passes in the opposite direction, the filter (5) The dirt such as descaling adhered to the filter medium (54) inside is discharged to the outside from the drain circuit (56).

In this apparatus, the inside of the filter (5) is backwashed with the hot water supplied from the water heater (1).
There is an advantage that the hot water can be effectively used as compared with a case where the hot water generated by heating in the water heater (1) is simply drained.

[Brief description of the drawings]

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

FIG. 2 is an explanatory view of a prior art.

[Explanation of symbols]

 (1) ・ ・ ・ Hot water heater (3) ・ ・ ・ Bath tub (4) ・ ・ ・ Forced circulation channel (17) ・ ・ ・ Gas circuit (21) ・ ・ ・ Exhaust gas valve (26) ・ ・ ・ Gas burner

Claims (2)

(57) [Claims] In a bath apparatus in which the combustion exhaust gas of a gas burner (26) is dissolved in bathing water to make the inside of a bathtub (3) a carbonated spring, the concentration of carbon monoxide in the bathroom becomes higher than a set value. A bath apparatus provided with a concentration judging device that outputs an abnormal signal when the concentration is judged, and a ventilator for a bathroom, wherein the ventilating device is operated when the abnormal signal is output from the concentration judging device. 2. A bath apparatus in which combustion exhaust gas from a gas burner (26) is dissolved in bathing water so that the inside of a bathtub (3) is in a state of carbonated spring. A bath apparatus provided with a concentration judging device for outputting an abnormal signal when the concentration is judged, and an alarm device arranged in a bathroom, wherein the alarm device is activated when the abnormal signal is output from the concentration judging device.