JP3797575B2 - Bath water purification device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bath water purifier.
[0002]
[Prior art]
2. Description of the Related Art Bath water purification devices are widely used in which bath water is sucked from a bathtub with a circulation pump and purified by a filtration tank or the like, and then the bath water is returned to the bathtub and circulated.
In such a bath water purification apparatus, the present applicant has already proposed a thermal cleaning function in which high temperature water of a predetermined temperature or higher is circulated inside the apparatus to sterilize or sterilize the inside of the apparatus. .
[0003]
[Problems to be solved by the invention]
However, it has been found that when such heat cleaning is performed, problems such as the thermal expansion of a gas such as air stored in a filtration tank or the like, causing the circulation pump to run idle. In particular, when ozone or the like is used for bath water sterilization, it is easy to store gas, and the necessity for removing such gas increases.
The present invention aims to remedy the drawbacks of the prior art described above.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a bath water purifying apparatus of the present invention is provided in a bathtub and is connected to a water inlet for absorbing the bath water from the bathtub, and the water inlet is connected to the water inlet via a water absorption pipe to suck the bath water. A circulation pump connected to the circulation pump by a water supply pipe, and a filtration tank for purifying the sent bath water, and a discharge tank connected to the filtration tank via a discharge pipe for discharging the bath water to the bathtub. A water outlet, a return pipe connecting the water supply pipe and the water discharge pipe, an air vent ejector provided in the return pipe, an air vent pipe connecting the air vent ejector and the upper part of the filtration tank, and a predetermined temperature And a heat cleaning means for sterilizing the apparatus by circulating the high temperature water, and before the high temperature water is circulated by the heat cleaning means, by flowing bath water from a circulation pump through the return pipe, the air vent ejector In To evacuate the gas accumulated in the upper portion of the filtration tank from the air vent pipe Te, characterized in that.
By flowing the bath water through the air vent ejector with the above configuration, the gas accumulated in the upper part of the filtration tank can be easily discharged.
Also linked to allow disconnection of the discharge pipe for discharging the hot water from the system to the water supply pipe side, to flow back bath water from the lower portion of the filtration tank to the top, into the outlet pipe gas accumulated in the upper portion of the filtration tank It is also possible to guide and discharge.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
First, the configuration of a bath water purifier with a thermal cleaning function will be described with reference to FIG.
The water inlet 2 provided inside the bathtub 1 is connected to the water absorption side of the circulation pump 3 by the water absorption pipe 10, and the water supply side of the circulation pump 3 is connected to the water supply pipe 11, via the heater 4 and the sterilizer 5. It connects with the water inlet 60 provided in the upper part of the filtration tank 6. FIG. The bath water enters the water inlet 60 and is filtered while being discharged from the outlet 61 provided at the bottom of the filtration tank 6.
A drain pipe 12 is connected to the outlet 61 of the filtration tank 6, and bath water is returned from the outlet 7 into the bathtub 1.
The outlet pipe 12 is provided with a switching L valve 8, and a thermal washing pipe 13 is connected to the switching L valve 8 so that the outlet pipe 12 and the water absorption pipe 10 can be directly connected.
At the time of thermal cleaning, the switching L valve 8 is switched to the thermal cleaning pipe 13 side, the connection between the outlet pipe 12 and the outlet 7 is cut off, and the outlet water 12 and the inlet pipe 10 are directly connected to circulate the bath water. It is like that. That is, the hot water in which the bath water is heated to a predetermined temperature by the heater 4 is used as the sterilizer 5, the filtration tank 6, the outlet pipe 12, the heat washing pipe 13, the water absorption pipe 10, the circulation pump 3, the water supply pipe 11, and the heater 4. The heat washing is performed by circulating in this order.
When cleaning is completed, the switching T valve 9 provided in the water supply pipe 11 is switched to connect the water supply side of the circulation pump 3 to the discharge pipe 14 to discharge hot water out of the system.
[0006]
In the above configuration, in the embodiment of the present invention, as shown in FIG. 1, a return pipe 22 capable of connecting the water supply pipe 11 on the water supply side of the circulation pump 3 and the water discharge pipe 12 on the discharge port 61 side of the filtration tank 6 is provided. It is. The return pipe 22 is connected to the water discharge pipe 12 via a switching T valve 23, and is connected to or disconnected from the water discharge pipe 12 by switching the switching T valve 23.
In addition, an air vent ejector 21 is provided in the return pipe 22, and an air vent pipe 20 is connected to the air vent ejector 21. The air vent pipe 20 is connected to the upper portion of the filtration tank 6 so that the gas accumulated in the upper portion of the filtration tank 6 can be discharged from the air vent ejector 21.
[0007]
In the above configuration, if the switching T valve 23 is switched and the return pipe 22 is connected to the outlet 7 side of the outlet pipe 12, the bath water from the circulation pump 3 is sent to the water supply pipe 11 side and at the same time the return pipe 22 side. Is also sent to the outlet pipe 12 and circulates from the outlet 7 into the bathtub 1. When bath water flows through the return pipe 22, the gas in the upper part of the filtration tank 6 is sucked from the air vent ejector 21 through the air vent pipe 20 and is discharged into the bathtub 1 from the drain pipe 12 together with the bath water.
With the above operation, the gas in the filtration tank 6 can be efficiently removed.
[0008]
FIG. 2 shows another embodiment.
In this embodiment, providing the return pipe 22 and the switching T valve 23 is the same as the embodiment of FIG. 1, but the air vent pipe 20 and the air vent ejector 21 are not provided.
Then, by switching the switching T valve 23 to disconnect the return pipe 22 and the water outlet, and simultaneously connecting to the filtration tank 6 side of the water outlet pipe 12, the bath water can flow backward from the outlet 61 side of the filtration tank 6. It is configured as follows.
In the above configuration, the switching T valve 23 is switched so that the return pipe 22 is connected to the outlet 61 side and not to the outlet 7 side. At the same time, the switching T valve 9 is switched to connect the water supply pipe 11 to the heat cleaning pipe 13.
If the circulation pump 3 is operated in this state, the bath water flows from the water suction port 2 to the circulation pump 3, the return pipe 22, the switching T valve 23, the switching L valve 8, and the discharge port 61, and flows back to the filtration tank 6. To do. Then, the backflow water is stored in the upper part of the filtration tank 6 and discharged together with the gas from the water inlet 60, flows through the sterilizer 5, the heater 4, and the switching T valve 9 and is discharged from the discharge pipe 14 to the outside of the system. It has become.
[0009]
FIG. 3 shows still another reference example .
In this embodiment, an air vent electromagnetic valve 30 is provided on the upper part of the filtration tank 6 so that air or the like can be extracted from the air vent electromagnetic valve 30 at any time.
[0010]
In the embodiment described above, the gas stored in the filtration tank 6 can be efficiently exhausted. Therefore, even if the heat cleaning is performed, the idling of the circulation pump 3 does not occur due to the thermal expansion of the gas. Moreover, there exists an effect of being able to suppress the raise of the internal pressure in an apparatus.
[0011]
【The invention's effect】
As described above, according to the bath water cleaning apparatus of the present invention, the gas stored in the apparatus can be appropriately exhausted, so that there is an effect that the smooth operation of the apparatus can be maintained.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing another embodiment of the present invention.
FIG. 3 is a block diagram showing another reference example .
FIG. 4 is a block diagram showing a configuration of a bath water cleaning apparatus having a thermal cleaning function.
[Explanation of symbols]
1: Bath, 2: Water inlet, 3: Circulation pump, 4: Heater, 5: Sterilizer, 6: Filtration tank, 7: Water outlet, 8: Switch L valve, 9: Switch T valve, 10: Water absorption pipe, 11: Water supply pipe, 12: Water discharge pipe, 13: Heat washing pipe, 14: Discharge pipe, 20: Air vent pipe, 21: Air vent ejector, 22: Return pipe, 23: Switch T valve, 30: Air vent Solenoid valve, 60: water inlet, 61: outlet.

Claims (2)

A water inlet provided in the bathtub for absorbing bath water from the bathtub;
A circulation pump connected to the water suction port via a water suction pipe and sucking bath water;
A filtration tank connected to the circulation pump by a water supply pipe and for purifying the sent bath water;
A water outlet that is connected to the filtration tank via a water outlet pipe and discharges bath water into the bathtub;
A return pipe connecting the water supply pipe and the water discharge pipe;
An air vent ejector provided in the return pipe;
An air vent pipe connecting the air vent ejector and the upper part of the filtration tank;
A thermal cleaning means for sterilizing the apparatus by circulating high-temperature water at a predetermined temperature;
Before circulating high-temperature water by the heat washing means, by flowing bath water from a circulation pump through the return pipe, the air accumulated in the upper part of the filtration tank from the air vent pipe in the air vent ejector is exhausted.
A bath water purifier characterized by that. A water inlet provided in the bathtub for absorbing bath water from the bathtub;
A circulation pump connected to the water suction port by a water suction pipe and sucking bath water;
A filtration tank connected to the circulation pump at its upper portion by a water supply pipe, purifying the sent bath water, and discharging it from a discharge port at the bottom;
A water outlet that is connected to the outlet of the filtration tank via a water outlet pipe and discharges bath water into the bathtub;
A pipe that connects the water supply pipe and the bottom of the filtration tank in a disconnectable manner;
Thermal cleaning means for sterilizing the apparatus by circulating high-temperature water at a predetermined temperature ;
A discharge pipe connected to the water supply pipe side so as to be disconnected, and discharging the high-temperature water out of the system ;
Before circulating the hot water by the heat washing means, by sending bath water from the circulation pump to the discharge port side of the filtration tank, the gas is led from the filtration tank to the discharge pipe and discharged out of the system.
A bath water purifier characterized by that.

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