JPH04190047A - Bath device and its operating method - Google Patents

Abstract

PURPOSE:To prevent too hot water of bath tub water from being discharged by a method wherein hot water fed from an additional boiling device and a circulating bath tub water are mixed to each other and discharged into a bath tub. CONSTITUTION:When a bubble switch and an additional boiling switch in a remote controller 14 are turned on, whether or not a water level adapted for driving a bubble pump is judged by a water level sensor 21, thereafter the bubble pump 25 and a circulating additional boiling pump 15 are driven. With such an arrangement, when a flow rate sensor in a circulating additional boiling pipe detects a flowing water, a circulating additional boiling burner 6 is ignited. Accordingly, water in the bath tub is sucked at a suction port 22 and discharged into a bath tub from a discharging port 24 and at the same time a part of the circulating water is heated by an additional boiling heat exchanger 5, and the heated hot water is mixed with the circulating bath tub water and discharged into the bath tub.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a household bath device including a bathtub water circulation device such as a bubble bath and a bathtub water circulation reheating device, and a method of operating the same. .

[Conventional technology]

Set the water level for filling the bathtub and the boiling water temperature on the remote control, and turn on the automatic operation switch.

Automatic bath equipment that fills water at a set water level and temperature is becoming popular.

FIG. 7 and FIG. 8 show an example, in which 1 is a device, 2 is a bathtub, and the device 1 includes a hot water supply heat exchanger 3 and its burner 4, and a heat exchanger for circulating and reheating the bathtub water. It is equipped with a vessel 5 and its burner 6.

The reheating heat exchanger 5 is connected to the circulation fitting 9 of the bathtub via the reheating return pipe 7 and the reheating outgoing pipe 8, and the hot water outlet pipe of the hot water supply heat exchanger 3 is connected to the hot water supply pipe 10 through the hot water supply pipe 10. It is connected to a hot water supply tap 11 disposed at any desired position, and is also connected to the circulation reheating pipe via a branch pipe having a hot water supply valve 12.

Although detailed illustrations and explanations are omitted, the appliance 1 is equipped with a microcomputer control unit 13, and when the automatic operation switch is turned on after setting the bathtub water level and boiling water temperature on the remote control 14, Hot water heated to a desired temperature by the vessel 3 is poured into the bathtub 2 via the hot water pouring valve 12 and the shield reheating conduit, and when the water level in the bathtub reaches the set water level, the hot water pouring valve 12 is heated to a desired temperature.
is closed, and if necessary, the pump 15 of the shield ring reheating device is driven to circulate the hot water in the bathtub, and the sensor 16 detects the temperature of the hot water in the bathtub at that time, and the hot water temperature reaches the set temperature of the bathtub. The structure is such that the burner 6 can be used to burn up to the point where it can be reheated. In addition, in FIG. 7 and FIG. 8, 17 is a flowing water sensor, 18 is a proportional control valve, 19 is a hot water temperature sensor, 2
0 is the bathtub water level sensor.

Although not shown, there is a combination of the automatic bath device shown in FIGS. 7 and 8 and a bubble bath device that sucks in air and squirts it into the bathtub while circulating bath water.

[Problem to be solved by the invention]

When reheating the bath, the bath apparatus described above drives the pump 15 and burns the burner 6 to circulate the bath water as shown by the arrows in FIG. 7 while heating the bath water using the heat exchanger 5. However, at that time, there is a risk of burns due to the high temperature of the water discharged from the circulation fitting 9 of the bathtub.
Conventionally, countermeasures have been taken, such as adjusting the discharge direction of the bathtub circulation fittings, or reducing the reheating capacity when the temperature approaches the boiling temperature.

Incidentally, an example of the discharge hot water temperature is as follows.

Circulating water amount 5Q/min input 12.0OOKcaQ/hour Heat exchange rate 80% Specific heat of water IKcaQ/kg'c rise in temperature
The electric current tl=32°C.

The bathing temperature varies depending on the person, but it is usually between 38℃ and 42℃.
Therefore, the discharge temperature reaches as high as 70°C to 74°C.

In addition, when the bathtub water temperature is high, pressing the lukewarm switch on the remote control opens the hot water pouring valve 12, and as shown in Figure 8, the water is supplied through the bathtub water shield ring reheating pipe without burning the burner. Then, the water is sent from the bathtub circulation fitting 9 to the bathtub for lukewarm operation. In this case, the discharge temperature of the water is N, which is the same as the supply water temperature, which gives the bather an unpleasant feeling of being quite cold.

The present invention improves the problems of the prior art as described above, and provides a bath device that does not make the bathtub water feel too hot when circulating and reheating it, and does not make it feel too cold when it is lukewarm. The purpose is to provide driving instructions.

[Means to solve the problem]

In order to achieve the above objects, the present invention includes a bathtub water circulation device that sucks bathwater out of the bathtub with a pump and then discharges it into the bathtub, and the bathtub water circulation device is connected to the suction side piping of the bathtub water circulation device. At the same time, connect the return piping of the bathtub water circulation device and the outgoing piping of the bathtub water circulation reheating device to the discharge side piping of the bathtub water circulation device, and operate the bathtub water circulation device and the bathtub water reheating device at the same time. It is characterized by mixing hot spring water and circulating bath water.

In addition, the present invention includes a bathtub water circulation device that sucks bathwater outside the bathtub with a pump and then discharges it into the bathtub, and connects the piping of the bathtub water circulation device and the piping of the bathtub water circulation reheating device to supply water. In this bath device, water is supplied into the bathtub via the piping of the bathtub water circulation reheating device to keep the bathtub water warm. It is characterized by mixing with water.

[Effect]

In the present invention, when reheating, the hot water from the reheating device and the circulating bath water are mixed and discharged into the bathtub as described above, so the hot water from the reheating device is warmed by the circulating bath water and the bath water is heated. Slightly higher discharge temperatures can be achieved.

By the way, when using a bubble bath device as a bathtub water circulation device, if you calculate it using the 4-point discharge type that is common for bubble baths, you will need a discharge rate of 20Q/min per bubble bath, so the discharge rate is Assuming that the temperature is 80Q/min and the temperature rise at the discharge port is t2°C.

80 x 60 x I x t2= 12.000
X O,8t2=2°C, resulting in a discharge temperature slightly higher than the bath water.

Similarly, when water is poured to make it lukewarm, the supplied water is mixed with circulating bath water and discharged into the bathtub, so the discharge temperature can be made slightly lower than the temperature of the bathtub water.

For example, if the bathtub water temperature is 42℃, the water supply temperature is 15℃, the bubble ring water amount is 80Q/min (of which the water injection amount is 15Q/min), and the discharge temperature is t3℃, then t3=36.9℃#37℃, and the bathtub Only 5% lower than the water temperature
℃ lower temperature.

〔Example〕

FIG. 4 shows an outline of a bath device to which the present invention is applied, and shows 1 to 1.
8.10 to 11.13 to 19 show the same parts as in FIG.

In the present invention, a bath device having a bathtub water circulation device such as a bubble bath device and a bathtub water circulation reheating device are combined.

That is, in a bubble bath, a suction fitting 22 having a bubble water level sensor 21 is arranged on the bathtub wall, and a bubble outlet 24 having an air suction pipe of an air valve 23 is placed at any desired position on the bathtub wall. The suction port 22 and the foam discharge port 24 are connected by a pipe having a pump 25, and the remote controller 1
When the bubble bath switch 4 is turned on, the pump 25 is driven and the air valve 23 is opened, so that the bathtub water sucked in through the suction port 22 is spouted out from the discharge port 24 together with air.

In the present invention, a check valve 26 that allows inflow in the bubble bath circulation direction is disposed in the middle of the bubble bath piping, and a suction side piping 27 on the upstream side of the check valve 26 and a shield ring reheating device are provided. The end of the return piping 7 for reheating is connected to the discharge side piping 28 on the downstream side of the check valve 26 and the outgoing piping 8 for reheating of the shield ring reheating device.
and the remote controller 14 is equipped with a hot water reheating switch, and when the switch is turned on, it drives the bathtub water shield ring reheating device and also activates the air valve 23 of the bubble bath device.
The pump 25 is configured to be driven while the is closed. In addition, in FIG. 4, 29 is a microcomputer control unit for the bubble bath as described above, and 30 is a flow rate sensor disposed in the bathtub water circulation reheating pipe.

Since the present invention is configured as described above, when the bubble boiling switch of the remote control 14 is turned on using the bath apparatus shown in FIG. 4, the water level sensor 21 determines the water level suitable for driving the bubble pump. After determining whether the foam pump 25
and the shield ring reheating pump 15 are driven, and when the flow rate sensor of the shield ring reheating conduit detects flowing water, the circulation reheating burner 6 is combusted. Therefore, bathtub water is sucked in from the suction port 22 and discharged into the bathtub from the discharge port 24, and a part of the circulating water is heated by the reheating heat exchanger 5, and the heated hot water is transferred to the circulating bathtub. It is mixed with water and discharged into the bathtub.

FIG. 5 shows another embodiment of the invention.

This embodiment is a combination of the conventional appliance shown in FIG. 7 and a bubble bath device.

That is, in Fig. 5, 1 to 8, 10 to 20 are the seventh
The same parts as those in the figures are given the same reference numerals and their explanations will be omitted.

Further, in FIG. 5, the same parts 21 to 30 as in FIG. 4 are given the same reference numerals, and the explanation thereof will be omitted. 31 is a bathtub temperature sensor, and 32 is a discharge temperature sensor.

Since the bath device shown in FIG. 5 is constructed as described above, it is possible to discharge hot water into the bathtub when reheating the bathtub water in the same way as the device shown in FIG.
Therefore, hot water that is not too hot can be discharged even during the heat retention operation, and a lukewarm operation that is not too cold can be performed.

In other words, a bath device with a heat retention function operates at certain intervals (for example, every 30 minutes) once the bathtub water temperature reaches the set temperature.
However, in the present invention, the pump of the bubble bath device is driven at the same time as the heat retention operation.

Figure 2 is a flowchart showing an example of this.When the automatic switch is turned on, hot water is filled in the bathtub 2 according to the usual method, and the temperature is raised to the set temperature.Then, the keep-warm timer is turned on, and the bath water is heated every set time. is detected, and when it is at a temperature that requires heat retention operation, the foam layer pump 25 and the reheating pump 15 are driven, and when the flow rate sensor 30 detects running water, the burner 6 is burned, and as a result, the bathtub water temperature is increased. When the set temperature is reached, the pump 25.15 is stopped and the burner 6 is turned off.
to stop combustion.

In addition, Figure 3 shows a flowchart for lukewarm operation when the bathtub water temperature is too high.When the lukewarm switch is turned on, the water level in the bathtub is compared with the water level sensor 21, and the level is determined to be suitable for foam layer pump operation. In this case, the bath pump 25 is driven and the hot water pouring valve 12 is opened to circulate the bath water and mix the circulating water with the supplied water to perform lukewarm operation until the set temperature is reached.

FIG. 6 is a block diagram showing a specific example of the microcomputer control section and remote control of the bath apparatus shown in FIG.

Although the above embodiments have been described using a bubble bath device as a bathtub water circulation device, the present invention is not limited to bubble baths, and is applicable to devices that circulate bathtub water, such as bathtub water purification devices. It can be applied as long as it is equipped.

〔Effect of the invention〕

As described above, according to the present invention, too hot water is not discharged during circulating reheating of bathtub water, so comfortable circulating reheating can be performed even while taking a bath, and even during lukewarm operation. This has the effect of allowing comfortable lukewarm driving without being too cold.

[Brief explanation of drawings]

FIG. 1 is a flowchart of the reheating operation according to the present invention, FIG. 2 is a flowchart of the heat retention operation, and FIG. 3 is a flowchart of the lukewarm operation. FIG. 4 is a block diagram showing an example of the implementation of the bath apparatus of the present invention, FIG. 5 is a block diagram showing another embodiment, and FIG. 6 is a block diagram of the microcomputer control section of the embodiment shown in FIG. be. Fig. 7 and Fig. 8 are explanatory diagrams showing the conventional example, in which Fig. 7 shows the state of reheating operation, and Fig. 8 shows the state of reheating operation.
The figure shows the state of lukewarm operation. 1... Appliance, 2... Bathtub, 3... Heat exchanger for hot water supply, 4... Same burner, 5... Heat exchanger for reheating, 6...
・Same burner, 7... Reheating return piping, 8... Reheating forward piping, 10... Hot water supply pipe. 12...Pouring valve, 13...Microcomputer control unit for appliances,
14...Remote control, 15.25...Pump, 21.
- Bathtub water level sensor, 22... Suction port, 24... Discharge port, 27... Suction side piping, 28... Discharge side piping, 2
9... Foam layer microcomputer control section. Figure 1 Figure 2 Dohi 9 Saki View L1 Yosaki

Claims (1)

[Claims] 1. Equipped with a bathtub water circulation device that sucks bathwater outside the bathtub with a pump and then discharges it into the bathtub, and the return piping of the bathtub water circulation reheating device is connected to the suction side piping of the bathtub water circulation device. The bath device is characterized in that the outgoing piping of the bathtub water circulation reheating device is connected to the discharge side piping of the bathtub water circulation device, and the bathtub water circulation device and the bathtub water circulation reheating device are driven simultaneously. 2. Equipped with a bathtub water circulation device that sucks bathwater outside the bathtub with a pump and then discharges it into the bathtub, and connects the return piping of the bathtub water circulation reheating device to the suction side piping of the bathtub water circulation device, and also connects the return piping of the bathtub water circulation reheating device. Connecting the outgoing pipe of the bathtub water circulation reheating device to the discharge side piping of the device, and operating the bathtub water circulation device and the bathtub water circulation reheating device simultaneously to mix hot water from the reheating device and circulating bath water. A method for reheating a bath device characterized by: 3. Equipped with a bathtub water circulation device that sucks bathwater outside the bathtub with a pump and then discharges it into the bathtub.The piping of the bathtub water circulation device is connected to the piping of the bathtub water circulation reheating device, and the supplied water is transferred to the bathtub water circulation and reheating device. In a bath device that supplies hot water into the bathtub via piping of a heating device to keep the bathtub warm, the bathtub water circulation device is operated while water is supplied to the bathtub, and the water supply and the circulating bathwater are mixed. A lukewarm operating method for a bath device characterized by: