JPH03218759A - Bubble bath circulating device - Google Patents

Abstract

PURPOSE:To rationally execute the operation without causing useless power consumption by allowing the capacity of a circulating pump to conform in order to obtain the circulating water quantity conforming to each function. CONSTITUTION:When a switch 33 of a strong bubble bath of an operating panel 32 is depressed, a three-way changeover valve 8 is set so that circulating water of a second circulating line 7 joins a main circulating line 4 without passing through a bypass line 7. Subsequently, a first and a second circulating pumps 5, 6 are driven, circulating water of the maximum flow rate flows to a main circulating line 4, and from a jet nozzle 3, a strong bubble flow is injected into a bathtub. When a switch 34 of a weak bubble bath of the operating panel is depressed, a second circulating line 7 and a bypass line are connected to the three-way changeover valve 8, and only a first circulating pump 5 is driven. In such a state, it scarcely occurs that circulating water of the main circulating line 4 flows as a bypass flow by water passing resistance of a filter 9, etc., to a second circulating line 7 and a bypass line 10. Therefore, by a first circulating pump 5, the greater part of circulating water passes through the main circulating line 4, and from the jet nozzle 3, a weaker bubble flow than the time of a strong bubble bath is injected to the bathtub.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a bubble bath circulation device that circulates bath water and injects a jet stream containing bubbles into the bathtub. BACKGROUND OF THE INVENTION A conventional bubble bath circulation device was as shown in FIG. 2 or 3. To explain the example shown in FIG. 2, bath water is taken out from the bathtub l1 through the filter outlet 12, kinetic energy is applied to the bath water by the first circulation pump 15, and then the bath water is purified by the filter 19 and the main After circulating through the circulation path 14, from the jet nozzle 13 to the bathtub l1, the air pipe 13
It emits a jet of air mixed in as bubbles. Next, the three-way switching valves 18a and 18b are switched, and the second
When the circulation pump 16 is driven, the bathtub water flows through the circulation outlet 12.
It exits the main circulation path 14, enters the bypass path 17 via the three-way switching valve 18a, passes through the heat exchanger 20a heated by the heating burner 20b, and after being heated, the jet nozzle is transferred from the main circulation path 14 again via the three-way switching valve 18b. After returning to the bathtub 11 through the bathtub 13, the temperature of the bath water inside the bathtub 1L had been raised. In addition, in the second conventional example shown in FIG. It exits the bathtub 21, circulates through the main circulation path 24, and enters the jet nozzle 2.
The water is mixed with the air sucked in from the air pipe 23a and returns to the bathtub 21 as a jet stream with bubbles. At this time, when the flow control comb valve 28 is opened, part of the discharge amount of the first circulation pump flows to the control circuit 30, so that less circulation is sent to the main circulation path 24 than when the flow control valve 28 is closed. The jet flow from the jet nozzle 23 can be weakened. Also,
During the above-mentioned operation, when the second circulation pump 26 provided in the bypass path 27 is driven, a part of the circulating water in the main circulation path 24 is sucked into the second circulation pump 26 and enters the bypass path 27, and is passed through the filter. 29 and then the main circuit 24 again.
The bathtub water gradually became cleaner as it merged with the circulating water.

Problems to be Solved by the Invention As is clear from the above explanation, conventional methods have been used to circulate large amounts of circulating water for multiple purposes, such as filtering and cleaning bath water and creating a powerful jet bubble flow. A large-capacity circulation pump was operated either alone or in conjunction with a separate small-capacity circulation pump. However, this has the problem of flowing more circulating water than necessary for the filtration flow rate that is compatible with the filtration action of the filter, resulting in wasted power consumption. In addition, in order to adjust the strength of the jet bubble flow, a large-capacity circulation bomb is constantly driven to bypass a portion of the circulating water to a circuit built in parallel with the pump, and a jet nozzle (not shown) is used. There was a problem in that a weak air bubble flow was created by reducing the amount of air bubbles into the jet flow using an air volume control valve installed in the middle of the air pipe connected to the air pipe, which resulted in wasted power consumption.

In order to solve the above-mentioned conventional problems, the present invention provides a bubble bath circulation system in which bath water is used for multiple functions, in which the power consumption when weakening the bubble flow jetted from the jet nozzle is reduced commensurate with the amount of circulating water. The purpose is to drive a circulation pump that filters the bath water or optimizes the amount of circulating water that is heated and heated by forced circulation, so that each of the above functions is efficiently performed and unnecessary power consumption is prevented. Suppose that Means for Solving the Problems In order to achieve the above object, the means of the present invention provides a bathtub with a circulation outlet for drawing bathwater out of the bathtub and a jet nozzle for returning the bathwater to the bathtub, and further connects the circulation outlet and the jet nozzle to the bathtub. Connected to a main circulation path for circulating water, and connected in parallel with the first circulation bomb, a second circulation path including a first circulation pump and a second circulation pump in the middle of the main circulation path. In the second circulation path, a three-way switching valve is provided on the discharge side of the second circulation pump, a bypass path is drawn out from the third connection port of the three-way switching valve, and a filter or a forced filter is installed in the middle of the bypass path. A circulation bath water heater, etc. is provided, the other end of the bypass path is joined to the main circulation path behind the confluence of the main circulation path and the second circulation path, and the two circulation pumps, three-way switching valve, etc. It is equipped with a controller, and sends signals from an operation panel equipped with operation switches corresponding to various applications such as controlling the strength of the jet bubble flow, filtration, and heating and raising the temperature of bath water. By the means described above, when the strong bubble bath switch on the operation panel is pressed, the three-way switching valve is set so that the circulating water in the second circulation path merges into the main circulation path without going through the bypass path, and The second two circulation pumps are driven, and the maximum flow rate of circulating water in this device flows through the main circulation path, and a stream of bubbles stronger than the jet nozzle is injected into the bathtub. At this time, no circulating water flows through the bypass path. Next, when you press the weak bubble bath switch on the operation panel, the three-way switching valve connects the second circulation path and the bypass path, and only the first circulation pump is driven, and the second circulation path and bypass path are connected. Due to the large flow resistance of filters, etc., the circulating water in the main circulation path hardly flows as a bypass flow, and most of the circulating water generated by the first circulation pump passes through the main circulation path and flows into the jet. The nozzle sprays a stream of bubbles into the bathtub that is weaker than that used in the strong bubble bath. Also, when the filtration (or bath heating) switch is pressed, the three-way selector valve is set to the second position in the same way as during the weak bubble bath.
Only the second circulation pump is driven, and most of the bath water is
from the circulation path to the bypass path, where it is cleaned with a filter (
Alternatively, the water is heated by a forced circulation bathtub water heater), then passes through the main circulation path and returns to the bathtub via a jet nozzle, and the water in the bathtub gradually becomes clean (or its temperature rises) through filtration. Note that a very small amount of the circulating water passing through the second circulation path and the bypass path flows through a part of the main circulation including the first circulation pump as a bypass flow, while being subjected to water flow resistance from the first circulation pump. ．． EXAMPLE Below, an example will be described as shown in FIG. 1. A bathtub l is provided with a plurality of jet nozzles 3, each of which is connected to a water circuit 7a through an air pipe 3a, and the other end of the air pipe is open to the atmosphere. A circulation outlet 2 for drawing bath water from the bathtub l to the main circulation path 4 is attached to the bathtub 1, the water circuit 7a and the circulation outlet 2 are connected to the main circulation path 4, and a power output of 200 W is installed in the middle of the main circulation path 4. A first circulation pump 5 is provided. In addition, the main circulation path 4 includes a first
A branch part A and a confluence part B are provided at each location on the inlet side and the discharge side of the circulation pump 5, and a second WI ring pump 6 with an output of 200 W and a three-way switching valve 8 on the discharge side are provided in the middle. The circulation path 7 and the second circulation path 7 connect the second circulation pump 6 side to the branch part A and the other end to the confluence part B, respectively. Next, a merging part C is provided on the main circulation path 4 which is behind the merging part B when viewed from the flow direction of the circulating water, and the merging part C and the three-way switching valve 8 are connected by a bypass passage 10. A filter 9 (or forced circulation bathtub water heater (hereinafter referred to as bath heater)) is installed in the bathtub. A controller 31 is provided to control the operation of this device, and the two circulation pumps 5 and 6 and the three-way switching valve 8 (and bath heater) are electrically connected to the controller 31.

The controller 31 includes an operation panel 32 for operating the device in the bathroom.
are electrically connected, and the operation panel 32 has a switch 33 for a strong bubble bath that sprays a strong jet bubble, a switch 34 for a weak bubble bath that sprays a weak jet bubble, and a switch 34 that filters the bath water (or (heating) switch 35 etc. is provided. Then, when a user selects a desired use among the plurality of uses and presses a switch corresponding to the use, the controller 31 controls the device.

Next, we will explain the operation to obtain a strong massage effect using a strong jet bubble flow. First, when the strong bubble bath switch 33 on the operation panel 32 is pressed, the three-way switching valve 8 is set so that the circulating water in the second circulation path 7 flows into the main circulation path 4 without passing through the bypass path 7. , the first and second two circulation pumps 5 and 6 are driven, and the bathtub water is circulated through the circulation outlet 2.
It enters the main circulation path 4 from the branch part A, and the main circulation path 4 and the second
The air is separated into the circulation path 7, pressurized by the two circulation pumps, merges at the confluence section B, circulates through the main circulation path 4 again, passes through the gent nozzle 3, and air bubbles containing the air taken in from the air pipe 3a. Spray the water into the bathtub 1. The two circulation pumps each have the same performance with an output of 200 W, and in this application, the discharge pressure is 1.2 kg/cj and the discharge amount is 40 I! /min, and the merging in the main circulation path 4 has a discharge pressure of 1.2 kg/d and a flow rate of 801 kg/d.
It is 7 minutes. At this time, the bypass path lO is connected to the main circulation path 4 at the confluence a, but the other end is closed by the three-way switching valve 8, so no circulating water flows. Next, we will explain the operation to obtain a weak massage effect using a weak jet bubble flow. When the weak bubble bath switch 34 on the a-making board 32 is pressed, the three-way switching valve 8 connects the second circulation path 7 and the bypass path 10, only the first circulation pump 5 is driven, and the bath water flows through the circulation outlet. 2, passes through the main circulation path 4, and is discharged from the jet nozzle 3 at a pressure of 1.2 kg/cj.
As will be described later, the amount of circulating water is a little less than 40 IlZ, and the amount of water is smaller than that of jet nozzle 3 compared to the case of a strong air bubble bath.
Therefore, due to the reduction of the ejector effect generated in the jet nozzle 3, a weak stream of bubbles with a reduced amount of bubbles is injected into the bathtub 1. In contrast to the flow in the main circulation path 4, a bypass flow is generated in the bypass path 10, which is communicated with the second circulation path 7 through the switching valve 8, from the merging section C toward the branching section A. Since the filter 9 with large water resistance is located in the middle, the flow rate as a bypass flow is so small that it can be ignored. Next, an explanation will be given of the operation for cleaning (or heating and heating) the bath water using the filter 9 (or the bath heater). When the filtration (or bath heating) switch 35 on the operation panel 32 is pressed, the three-way switching valve 8 is set in the same way as in the case of weak bubbles, only the second circulation pump 6 is driven, and the bath water is diverted to the circulation outlet 2. It exits the main circulation path 4, enters the second circulation path 7 from the branch A, is pressurized by the second circulation pump 6, enters the bypass path IO through the three-way switching valve 8, and enters the filter 9 ( Alternatively, the water is cleaned (or heated and heated) through a bath heater), then returns to the main circulation path 4 again through the confluence section C, and after circulating through the main circulation path 4, returns to the bathtub 1 through the jet nozzle 3. At this time, approximately 101/min of the circulating water flows into the bypass flow from the merging section C of the main circulation path 4 toward the branching section A while being subjected to the water flow resistance of the first circulation pump 5. The net circulation flow rate for filtration (or bath heating) is reduced to approximately 30 l/min. still,
In order to stop this bypass flow, a new three-way switching valve can be installed in the confluence section C, but this is not preferable because it reduces the amount of circulating water when using a jet bubble bath, which is frequently used. The capacities of the first and second two circulation pumps 5 and 6 are set to 250W and 150W, respectively, and the circulation flow rate is switched to three stages of 400W, 250W, and 150W from the combination of these two pumps, and the jet It is also possible to classify the jet strength of a bubble bath into three strengths: strong, medium, and weak. Next, we will organize the circulation pump capacity, which is directly connected to the power consumption for each application, according to this embodiment, and compare it with the conventional example.
It will look like a table. As shown in 2, in this example, for circulation with multiple purposes, the capacity of the circulation pump suitable for each purpose can be selectively used. There is no possibility of excessive power consumption that is inappropriate for the application. Effects of the Invention As is clear from the above explanation, the present invention provides a device with multiple circulation functions, such as changing the intensity of the jet bubble flow, filtering bath water, or heating and heating bath water. In order to obtain the appropriate amount of circulating water, the capacity of the circulation pump can be adjusted to achieve a rational and efficient operation.

[Brief explanation of drawings]

It is a block diagram showing a bubble bath circulation device. 4...Main circulation path, 5...First circulation pump, 6...Second circulation bomb, 7...
・Second circulation path, 8... Three-way switching valve, 9...
...Filter (or bath heating machine), 31...
-Controller, 32...Operation panel.

Claims (1)

[Claims] A circulation outlet for discharging bathtub water from the bathtub to the outside; a main circulation path connected to the circulation outlet and equipped with a first circulation pump midway through which the bathtub water is circulated; a jet nozzle for returning the water to the bathtub; a second circulation path connected to the main circulation path in parallel with the first circulation pump and having a second circulation pump in the middle; 2
One end is connected to the three-way switching valve provided on the discharge side of the circulation pump and the third connection port of the three-way switching valve, and a filter or forced circulation bath water heater, etc. is installed in the middle, and the other end is connected to the third connection port of the three-way switching valve. It is equipped with a bypass path connected to the main circulation path behind the confluence of the main circulation path and the second circulation path, and a controller that controls the two circulation pumps, three-way switching valves, etc., and is further provided with switches for each purpose. A bubble bath circulation device configured to send signals from a control panel to the controller.