JPH028649A - Bath heater device - Google Patents

Abstract

PURPOSE:To enable a starting/stopping of a bubble bath operation to be carried out during feeding of hot water to a bath and further facilitate a feeding of a specified amount of h9t water by a method wherein an amount-of-water sensor is placed within a bath hot water feeding passage, air is sucked by an ejector, and an additional heating of a bath is carried out under an arrangement of a by-passing passage. CONSTITUTION:As an amont-of-water of hot water is set by a remote operating part 62 and a hot water feeding switch is turned on, a controller 61 may open valve V2 in a hot water feeding passage 52, hot water of predetermined temperature is fed from a heat exchanger 35 into a hopper 51, a valve V3 is opened with a signal of a water level sensor S3, hot water is fed to a bath tub 20 with a pump P. As an amount of feeding hot water accumulated by an amount-of-water sensor S1 reaches a predetermined amount, the feeding of hot water is terminated. In this case, if a bubble bath operating switch is ON, a valve V4 is opened, air is fed to an ejector 33 and then bubbles are injected within a bath tub 20. When an additional heating switch is turned ON, a valve V1 in the bypassing passage 34 is opened, the bath tub water is flowed through the circulation passage 32 under an operation of a pump P and heated by a heat exchanger 35 and then circulated. In this way, the bubble bath operation can be carried out during feeding of hot water, a feeding of predetermined amount of hot water can be performed and then a mild additional heating can be carried out.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a bath kettle device that can perform bath hot water supply operation, bubble bath operation, and reheating operation. Regarding a bath kettle device that can be used.

<Prior Art> FIG. 4 shows a configuration diagram of a conventional device disclosed in Japanese Unexamined Patent Publication No. 62-204747. 1 is a bathtub, 2 is a heat exchanger FIA device,
3 is a circulation pump, 4.5 is a passage opening/closing valve, and 6 is an air pump. When reheating, the valve 5 is opened and the pump 3 is driven to perform heating. Further, when operating the bubble bath, the valve 4 is opened, the pump 3 is driven, and air is sent from the air pump 6 to perform the bubble bath operation.

Fig. 5 shows the configuration of another conventional device. 1 is a bathtub, 2 is a heat exchanger, 3 is a circulation pump, 7 is a three-way valve, 8 is an ejector, and 9 is connected to the negative pressure forming part of the ejector 8. 10 is a short-circuit passage. When reheating, the three-way valve 7 is switched so that the water in the bathtub 1 is circulated to the heat exchanger 2. When operating a bubble bath, the three-way valve 7 is switched to the short-circuit passage 10 side to short-circuit the bath water. By opening the on-off valve 9 of the air introduction path and sucking air from the negative pressure forming part of the ejector 8, bubbles are discharged into the bathtub 1.

<Problems to be Solved by the Invention> However, the conventional device shown in FIG. Therefore, there was a drawback that the air pump 6 could not be housed in the same case as the bathtub.

Since the conventional device shown in FIG. 5 does not require the use of an air pump, it is very effective in terms of device integration. On the other hand, if a drop hopper 11 for bath water supply is provided in such a device as shown by the two-dot chain line to add a bath hot water supply function, when the circulation pump 3 is driven, its dynamic pressure causes the drop hopper 11 to be placed in the circulation passage. The problem remains that the water pressure sensing type water level sensor 12 cannot accurately detect the bathtub water level.

In particular, when the ejector 8 is used to perform bubble bath operation at the same time as bath water supply, the pressure increases before the ejector 8, so the water level sensor 12 placed in the circulation path cannot detect the bath water level very accurately. There was a drawback. For this reason, conventionally, hot water was not supplied to the bath while the bubble bath was in operation, and when the water level of the bathtub decreased, the bubble bath switch was turned off before hot water was supplied to the bath.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a bathtub device that can solve the above-mentioned drawbacks of the prior art and meet the demand for simultaneous bubble bath operation and bath hot water supply operation.

Means for Solving the Problems> The present invention is a bathtub device equipped with a bath hot water supply function, a bath reheating function, and a bubble bath function, in which water from the bathtub is guided to a circulation pump and water is removed from the circulation pump. a circulation passage that circulates discharged water to the bathtub via an ejector; and a bypass passage that branches from the circulation passage upstream of the circulation pump, passes through a heat exchanger, and joins the circulation passage upstream of the circulation pump again. and a reheating passage opening/closing valve provided in the bypass passage, and a drop opening/closing valve for the bypass passage or the circulation passage downstream of the passage opening/closing valve and the heat exchanger and upstream of the circulation pump. A dropping hopper connected via a valve, a bath hot water supply path for pouring hot water into the hopper, a bath hot water supply passage opening/closing valve and a water flow sensor provided in the bath hot water supply path, and a negative pressure forming part of the ejector. When supplying hot water to the bath, a set amount of water is supplied to the bathtub by detecting the amount of hot water supplied with a water flow sensor provided in the bath hot water supply path.

<Function> By installing a water flow sensor in the bath water supply path, a predetermined set amount of water is supplied to the bathtub regardless of whether the circulation pump is on or off, and regardless of whether the bubble bath is in operation or not. be able to.

That is, it is sufficient to set a predetermined amount of water according to the state of the water level in the bathtub and start supplying hot water. When a predetermined amount of water flows, the water flow sensor in the bath hot water supply path detects this, closes the passage opening/closing valve in the bath hot water supply path, and stops hot water supply. Of course, the amount of water may be determined in advance in several levels, and the user may select one and turn on the switch, so that the selected amount of water is supplied to the bath each time the switch is turned on.

<Embodiment> FIG. 1 is an overall configuration diagram showing an apparatus implementing the present invention, FIG. 2 is an explanatory diagram of a float switch of a hopper, and FIG. 3 is a control flowchart of operation operations by a controller.

20 is a bathtub, and 30 is a case for a bathtub. Case 3
Components necessary for bath hot water supply operation, reheating operation, and bubble bath operation are stored and arranged inside the bath. A circulation pump P is provided in the circulation passage 32, and bath water is circulated through the circulation passage 32 by driving the circulation pump P. An ejector 33 is provided at the end of the circulation passage 32, and the circulating water returns to the bathtub 20 through the ejector 33.

A bypass passage 34 is provided to branch off from the upstream side of the circulation pump P in the middle of the circulation passage 32, and the bypass passage 34 passes through a heat exchange coil 36 in a heat exchanger 35, and then returns to the circulation pump of the circulation passage 32. It is merged upstream from P. The bypass passage 34 includes a passage opening/closing valve V for reheating,
is provided.

The inside of the heat exchanger 35 is a hot water storage tank, and the water that enters the heat exchanger 35 is heated by a burner 39, and is discharged as necessary to supply hot water. The water passing through the heat exchange coil 36 is heated by hot water in the heat exchanger 35.

An air introduction path 40 is connected to the negative pressure forming portion 33a of the ejector 33, and the air introduction path 40 is provided with a jet air valve 4.

Reference numeral 50 denotes a dropping passage for supplying bath water, which is connected from the lower end of the dropping hopper 51 to the bypass passage 34 on the downstream side of the heat exchanger 35 and the reheating passage opening/closing valve 37. Of course, the drop passage 50 is connected to the heat exchanger 3.
5 and downstream of the passage opening/closing valve 37, the circulation pump P
It may be connected to the circulation passage 32 on the suction side. A bath hot water supply path 52 from the heat exchanger 35 faces the drop hopper 51, and the bath hot water supply path 52 is provided with a bath hot water supply opening/closing valve V2 and a water amount sensor Sz. The dropping passage 50 is provided with a dropping opening/closing valve V3.

S2 is a float switch, which is activated when the water level in the hopper 51 reaches three positions A, B, and C, as shown in FIG. That is, during hot water supply to the bathtub 20, the hopper 51
When the water inside drops to level A, valve 3 closes. Also B
When the water level rises, valve ■3 opens. Also, when the water rises to level C, valve 2 closes to prevent overflow.

Reference numeral 61 denotes a controller which receives commands from the remote device section 62 and controls predetermined regulations by inputting information from the bath temperature sensor S2, water flow sensor S, float switch S3, and others. 1'Il operation command is output to circulation pump P, valves V, , V, , 1, v4, burner 39, etc.

The remote control unit 62 is placed in a bathroom or the like, and is provided with a main operation switch, a bath water supply switch, a bubble bath switch, a reheating switch, a bath temperature control dial, etc., as well as a bath water supply amount setting dial. Instead of a bath water supply amount setting dial, you can set multiple types of predetermined hot water supply amounts, e.g.
A selection knob may be provided for selecting the amount of hot water to be supplied, such as lOl, 301.501.80β, and 1801.

Control by the controller will be explained. Now, with the main operation switch turned on, if you set a predetermined bath water supply amount or select a predetermined bath hot water supply amount and turn on the bath water supply switch (step (a)), the bubble bath operation switch will turn on. is off (step (b)), first, valve 2 of the bath hot water supply path 52 is opened, and hot water at a predetermined temperature starts to be poured from the heat exchanger 35 into the hopper 51. When the water level of the hopper 51 rises to position B, the valve V3 of the drop-in passage 50 opens and the pump P is turned on to start supplying hot water to the bathtub 20 (step (c)). If the water level in the hopper 51 drops to C during hot water supply, valve ■3
is closed and pump P is turned off. Then, the amount of hot water supplied to the bath is integrated by the water amount sensor S1 disposed in the bath hot water supply path 52,
When a predetermined amount of hot water is supplied (step (d)), valves ■2 and ■3 are closed via the controller 61, and the pump P
turns off and bath water supply ends (step (e)
).

On the other hand, if only the bubble bath operation switch is turned on (
In step (G)), valves ■1, V2, and ■3 are closed, valve ■4 of the air introduction path 40 is opened, and pump P is turned on (step (g)). The bathtub water circulates through the circulation passage 32, and when passing through the ejector 33, air is sucked from the negative pressure forming part 33a of the ejector 33, and bubbles are ejected into the bathtub 20. When you turn off the bubble bath operation switch, operation will be stopped.

Furthermore, if bath hot water supply operation and bubble bath operation are performed at the same time, that is, if the bubble bath operation switch is further turned on while the bath hot water supply operation switch is in the on state, or vice versa, in this case, the valve ■1 is closed, valve ■2,
V3 and v4 are opened and pump P is turned on (step (H)). However, valve V3 opens when the hopper water level rises to position B, and closes when it falls to position A. Hot water is dropped from the hopper 51 while the bathtub water circulates through the circulation passage 32. Then, air is sucked from the negative pressure forming part of the ejector, and foamy water is ejected into the bathtub. When the amount of hot water passing through the bath hot water supply path 52 detects the set water amount (step (S)), the valves 2 and V3 for bath hot water supply are closed (step (nu)), and the bath hot water supply ends. The bubble bath operation continues until the bubble bath operation switch is turned off.

Although not shown in the flowchart of FIG. 3, when the bath reheating switch is turned on, the bypass passage 34
The valve ■ opens and the pump P turns on. The bathtub water circulates in the circulation passage 32, a part of which flows into the bypass passage 34, is heated in the heat exchanger 35, and then joins with the circulating water again,
Return to bathtub 20. When the bath temperature sensor S2 detects the bath set temperature, the valve ■ is closed and the pump P is turned off.
Reheating operation ends. In the reheating operation, the warm water heated by the heat exchanger 35 is diluted in temperature with the circulating water and returned to the bathtub, so that superheated water does not enter the bathtub 20 and mild reheating can be performed. Also, switching between reheating operation and bubble bath operation can be easily performed by opening and closing valves 1 and V4. Of course, you can also run a bubble bath at the same time while reheating. In this case, valve v4 is further opened. Also, if you turn on the reheating switch while operating a bubble bath, the valve v1
opens further, resulting in simultaneous operation.

Effect> The present invention has the above-described configuration, and a water flow sensor is provided in the bath hot water supply path to detect the bath hot water supply amount. Therefore, in the conventional device in which a water level sensor is placed in the circulation path, bath hot water supply and bubble bath cannot be performed. While it was difficult to drive at the same time,
It is possible to start a bubble bath operation while hot water is being supplied to a bath, or to perform the reverse operation satisfactorily.

Additionally, a water flow sensor installed in the bath water supply path makes it easy to dispense a fixed amount of water.

Furthermore, since air is sucked using an ejector, all functions can be compactly configured in one case without adding an air pump or other equipment for the bubble bath.

In addition, since it is configured to perform reheating by providing a bypass passage, the high temperature water from the heat exchanger is diluted in temperature before entering the bathtub, making it possible to realize mild reheating.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram showing an apparatus implementing the present invention, Fig. 2 is an explanatory diagram of a hopper float switch, Fig. 3 is a control flowchart of the operation operation by the controller, and Figs. 4 and 5 are respectively of the conventional apparatus. FIG. 20: Bathtub 32: Wi-ring communication path 3: Ejector 34: Bypass path 35: Heat exchanger 40: Air introduction path 50: Drop-in path 51: Drop-in hopper 52: Bath hot water supply path P: Circulation pump SI = Water amount sensor V,... V,, v3, ■4: Valve

Claims (1)

[Claims] A bathtub device equipped with a bath hot water supply function, a bath reheating function, and a bubble bath function, the circulation passageway guiding water from the bathtub to a circulation pump and circulating water discharged from the circulation pump to the bathtub via an ejector. a bypass passage that branches from the circulation passage upstream of the circulation pump, passes through a heat exchanger, and joins the circulation passage again upstream of the circulation pump; and a reheating passage provided in the bypass passage. an on-off valve, a drop-in hopper connected via a drop-in on-off valve to the bypass passage or the circulation passage downstream of the passage on-off valve and the heat exchanger and upstream of the circulation pump; The bath includes a bath water supply path for pouring hot water into the bath water supply path, a passage opening/closing valve and a water flow sensor for bath hot water supply provided in the bath water supply path, and an air introduction path connected to the negative pressure forming part of the ejector. A bathtub device characterized in that when hot water is supplied, a set amount of water is supplied to the bathtub by detecting the amount of hot water supplied by a water amount sensor provided in the bath hot water supply path.