JPH0682095A - Supplying apparatus for hot water containing carbonic acid - Google Patents

Abstract

(57) [Abstract] [Purpose] An air / water contact part for contacting water or hot water with the exhaust gas of the hot water supply burner is provided in the middle of the path for supplying water or hot water to the bathtub. A carbon dioxide hot water supply device is provided on the downstream side, which is provided with a water pool portion which seals the path when water having a water level equal to or higher than a predetermined value is stored, and which is provided with control means for controlling the supply of water or hot water to the path. In (1), the exhaust gas of the burner is not supplied as gas to the bathtub to reduce the possibility of causing discomfort to the user. A configuration is provided in which a sensor for detecting the water level in the water pool is provided, and the control means reaches the predetermined value in a non-combustion state of the hot water supply burner when the water level in the water pool is less than the predetermined value based on the sensor information. Water up to.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a steam contact portion for contacting water or hot water with exhaust gas of a hot water supply burner in the middle of a path for supplying water or hot water to a supplied portion. On the downstream side of the steam contact portion, a water pool portion is provided to seal a route portion from the steam contact portion to the supply target portion in the route when water having a water level equal to or higher than a predetermined value is accumulated, The present invention relates to a carbonated water heater provided with a control means for controlling the supply of water or hot water to the route.

[0002]

2. Description of the Related Art A bathtub can be used as the supplied portion. In the case of a bathtub, a carbonated bath is created by supplying water or hot water in which carbon dioxide gas is dissolved to the bathtub.
When water or hot water supplied to the bathtub is passed through the steam contact portion, carbon dioxide gas in the exhaust gas of the burner is dissolved in the water or hot water supplied to the bathtub. Incidentally, in the case of a general hot water tap, it is not usual to dissolve carbon dioxide gas, so it is common to supply hot water without passing through the steam contact part. Here, if the exhaust gas of the burner is supplied to the bath as a gas without being dissolved in water or hot water, the user may feel uncomfortable. Therefore, as shown in FIG. 4, a U-shaped water pool 35 is provided downstream of the steam contact chamber 1 to seal the path W1 with water, and the exhaust gas from the burner is supplied to the bath 2 as gas. There was something to prevent.

[0003]

If no water or hot water is supplied to the path and the water level in the water pool falls below the predetermined value, the function of sealing the path with water is lost. At this time, if the hot water supply burner is in a burning state, the exhaust gas of the burner may be supplied to the bathtub as gas. An object of the present invention is to solve the above-mentioned conventional drawbacks and to prevent the exhaust gas of the burner from being supplied to the bathtub in a gas state as it is, thereby obtaining a carbonated water heating apparatus which is less likely to cause discomfort to the user.

[0004]

In order to achieve this object, a first characteristic configuration of a carbonated water heater according to the present invention is provided with a detection means for detecting the water level in the water pool, and the control means Based on the information of the detection means, when the water level in the water pool is less than the predetermined value, water is supplied until the predetermined value is reached in the non-combustion state of the hot water supply burner.

In a second characteristic configuration, an opening / closing means for opening / closing the circulation of the path is provided on the downstream side of the steam / water contact portion of the path, and the opening / closing means is arranged so that the water level in the water reservoir is the predetermined value. If less than, it is configured to close the path.

[0006]

The operation of the first characteristic configuration is as follows. When the water level in the water pool is less than the predetermined value,
Since water is supplied until the predetermined value is reached in the non-combustion state of the hot water supply burner, the hot water supply burner will not be in the combustion state when the water level in the water pool is less than the predetermined value. Therefore, the exhaust gas from the hot water supply burner is not supplied to the bath as a gas.

The operation of the second characteristic configuration is as follows. Since the path is closed when the water level in the water pool is less than the predetermined value, the exhaust gas from the hot water supply burner is not supplied to the bath as gas regardless of whether or not the hot water supply burner is in a combustion state.

[0008]

In any of the first and second characteristic configurations, since the exhaust gas from the hot water supply burner is not supplied to the bathtub in the form of gas, a carbonated hot water supply device which is less likely to cause discomfort to the user can be obtained. be able to.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 3, a bathtub 2 as a supply target portion,
A hot water supply unit A that supplies hot and cold water to the bathtub 2, an additional heating unit B that heats the bathtub water, a control unit C, a remote controller R that gives a command to the control unit C, and a steam contact chamber 1
And a general hot-water tap 20. Steam contact chamber 1
Relays the supply of hot water from the hot water supply unit A to the bathtub 2. The hot water supply unit A has a hot water supply heat exchanger 3 and a hot water supply burner 4.
However, the additional heating section B is provided with a additional heating heat exchanger 5 and an additional heating burner 6, respectively.

A water supply passage W1 for supplying water to the steam contact chamber 1.
And a bathtub hot water supply passage W2 for supplying hot water from the hot water supply heat exchanger 3 to the steam contact chamber 1, and the hot and cold water joined in the steam contact chamber 1 is supplied to the bathtub 2. The water supply passage W1 branches off midway to supply water to the hot water supply heat exchanger 3. or,
A general-use hot water supply passage W3 branches from the bathtub hot water supply passage W2. In the figure, W4 is a circulation path W4 for circulating bath water between the bath 2 and the heat exchanger 5 for additional heating. In the water supply passage W1, a water amount sensor S1 that detects the amount of water supplied to the bathtub 2 and the heat exchanger 3 for hot water supply, a water temperature thermistor S2 that detects the water supply temperature, and a supply state and a non-supply state of water to the steam contact chamber 1. The solenoid valve for water 7 for switching the water temperature and the hot water supply temperature thermistor S6 for detecting the hot water supply temperature to the bathtub 2, and the hot water supply temperature thermistor S3 for detecting the hot water supply temperature of the hot water supply heat exchanger 3 and the steam water in the hot water supply passage W2 for the bathtub. The hot water solenoid valve 8 for switching between the hot water supply state and the non-hot water supply state to the contact chamber 1 is a general hot water supply passage W.
3, a water flow switch S4 for detecting the opening and closing of the general hot water tap 20, a circulation pump 9 and a bath temperature thermistor S7 for detecting the bath water temperature, and a water level sensor S8 for detecting the bath water level are respectively provided in the circulation path W4. It is equipped. Both burners 4 and 6 are provided with gas valves 41 and 61 for intermittently supplying and disconnecting gas, gas proportional valves 42 and 62 for adjusting the amount of gas supply, and fans 43 and 63 for blowing combustion air. There is.

The air / water contact chamber 1 will be further described. Figure 1
As also shown in FIG. 1, a spray nozzle 12 for spraying water and a packed bed 13 are mounted in the metal casing 11.
The spray nozzle 12 is connected to the water supply passage W1. The filling layer 13 is formed by braiding stainless wires in a three-dimensional lattice shape. An exhaust gas supply port 14 communicating with the exhaust gas passage of the hot water supply unit A is formed on the side of the filling layer 13. The high temperature exhaust gas supplied from the exhaust gas supply port 14 heats the packed bed 13 and is then discharged from the upper exhaust gas discharge port 15. That is, the sprayed water droplets come into contact with the exhaust gas in the upper space 1 a of the steam contact chamber 1 to dissolve the carbon dioxide gas in the exhaust gas and remove heat from the packed bed 13. That is, the upper space 1
“A” corresponds to a steam contact part for bringing water or hot water into contact with the exhaust gas of the hot water supply burner 4. Below the filling layer 13, the hot water supply passage W2
Hot water supply port 16 that communicates with the bathtub 2 and tap hole 17 that communicates with the bathtub 2
And a shielding plate 18 that shields the exhaust gas of the hot water supply burner 4 from entering the hot water outlet 17. The shielding plate 18 is
The hot water outlet 17 is formed so as to surround only the lower side, and the hot water outlet 17 is water-sealed when the water level above the lower end of the shielding plate 18 is accumulated in the steam contact chamber 1. That is, in the lower part of the water / water contact chamber 1, there is formed a water pool portion 1b that seals the water supply passage W1 when water having a water level equal to or higher than a predetermined value is stored. Further, a water level sensor S5 is provided as a detecting means for detecting the water level of the water pool portion 1b. The water level sensor S5 is installed above the lower end of the shield plate 18.

The remote controller R includes an operating switch 20, a hot water switch 21, a temperature setting switch 22 for setting a target temperature of bath water, a water level setting switch 23 for setting a target water level of the bath 2, and a target temperature of general hot water supply. Each of the temperature setting switches 24 for setting is set.

The control unit C includes a water amount sensor S1, a water temperature thermistor S2, a hot water temperature thermistor S3, and a water flow switch S.
4, water level sensors S5, S8, hot water supply temperature thermistor S6,
The bath temperature thermistor S7 and the remote controller R are connected to each other. Then, the control unit C, based on the preset and stored information and various input information, the solenoid valve 7 for water, the solenoid valve 8 for hot water, the gas valves 41 and 61, the gas proportional valve 4
The supply of water or hot water is controlled by operating 2, 62 and the like.
That is, the control unit 100 is configured using the control unit C.

The control of the water level in the water reservoir 1b will be described with reference to the flow chart shown in FIG. Note that the following control is activated even when hot water is not being supplied to the bathtub 2 or the general hot water tap 20 as long as the operation switch 20 is in the ON state. When the water level of the water reservoir 1b becomes lower than the installation position of the water level sensor S5 and the water level sensor S5 is turned off, the interrupt process is executed. First, if the general hot water tap 20 is in a hot water supply state, the combustion state of the hot water supply burner 4 is temporarily stopped. Next, the electromagnetic valve 7 for water is opened and water is supplied to the water reservoir 1b until the water level sensor S5 is turned on. It should be noted that the solenoid valve 7 for water is used for a predetermined time after the water level sensor S5 is turned on.
To close the interrupt process. That is, basically, the water supply operation in this water level control is performed by turning on the operation switch 20.
Immediately after the N state, it is performed to keep the water level in the water reservoir 1b at a predetermined value or higher. However, even in a hot water supply state or the like to the general hot water tap 20, the water supply operation is executed when the water level becomes low.

[Other Embodiments] In the above embodiment, the detection means S5 for detecting the water level in the water pool 1b is provided, and when the water level in the water pool 1b is less than the predetermined value, the predetermined value is set in the non-combustion state of the hot water supply burner 4. Although the water was supplied until reaching the water supply path W1, the opening / closing means K that opens and closes the flow of the water supply path W1 is provided on the downstream side of the water / water contact section 1a of the water supply path W1, and the water level in the water pool section 1b is the predetermined value. The water supply passage W1 may be closed when the amount is less than the above. As an example of the opening / closing means K, for example, in the configuration of FIG. 5, it is conceivable that an opening / closing lid 31 with a float for opening / closing the hot water outlet 17 is provided and the hot water outlet 17 is closed when the water level is below the lower end of the shielding plate 18. . In addition, the specific configuration of the opening / closing means K can be variously changed, such as configuring the opening / closing means K using an electromagnetic valve. In the above-mentioned embodiment, the case where the bathtub 2 is used as an example of the supplied portion is shown, but a shower may be used as the supplied portion.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 Schematic diagram of the steam contact chamber

FIG. 2 is a flowchart of control operation.

FIG. 3 is a block diagram of the overall configuration

FIG. 4 is a block diagram of a conventional overall configuration.

FIG. 5 is a configuration diagram of a steam contact chamber according to another embodiment.

[Explanation of symbols]

 1a Steam contact part 1b Water pool part 2 Supply target part 4 Hot water supply burner 100 Control means K Opening / closing means S5 Detection means W1 Path

Claims (2)

[Claims] 1. A steam contact unit (1a) for contacting water or hot water with exhaust gas of a hot water supply burner (4) is provided in the middle of a path (W1) for supplying water or hot water to a supply target unit (2). On the downstream side of the steam / water contact portion (1a) of the path (W1),
A water pool part (1) for water-sealing a route part from the steam-water contact part (1a) to the supplied part (2) in the route (W1) when water having a water level equal to or higher than a predetermined value is accumulated.
b) provided with a control means (100) for controlling the supply of water or hot water to the path (W1), which is a detection means for detecting the water level of the water pool (1b) (S
5) is provided, and the control means (100) controls the water pool (1) based on the information of the detection means (S5).
When the water level of b) is less than the predetermined value, the carbonated water heating apparatus is configured to supply water until the predetermined value is reached in the non-combustion state of the hot water supply burner (4). 2. A steam contact part (1a) for contacting water or hot water with the exhaust gas of the hot water supply burner (4) is provided in the middle of a path (W1) for supplying water or hot water to the supplied part (2). On the downstream side of the steam / water contact portion (1a) of the path (W1),
A water pool part (1) for water-sealing a route part from the steam-water contact part (1a) to the supplied part (2) in the route (W1) when water having a water level equal to or higher than a predetermined value is accumulated.
b) provided with a control means (100) for controlling the supply of water or hot water to the path (W1), wherein the steam water contact part (1a) of the path (W1) is provided. ) On the downstream side, an opening / closing means (K) for opening / closing the flow of the path (W1)
And the opening / closing means (K) is configured to close the path (W1) when the water level in the water pool (1b) is less than the predetermined value.