JPH09299264A - Purifier for bathtub hot water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a purifier for heating bathtub hot water by rapid and precise temperature control at a low cost. SOLUTION: A hot water suction pipe 3 for sucking hot water 2 from a bathtub 1 and a hot water jetting pipe for jetting the hot water for which a purification processing is ended again to the bathtub 1 are connected and a device main body 4 for which purification processors such as a filtering tank 5, a circulation pump 6 and an ultraviolet sterilization device 14, etc., are disposed altogether and a boiling water tank 16 for connecting a water suction pipe 20 equipped with a water suction pump 21 and a water discharge pipe 22, heating the hot water 2 inside the bathtub 1 by an inexpensive heat source such as late-night power, solar energy and kerosene, etc., and storing it as boiling water are provided together for the bathtub 1. Then, the water suction pump 21 is operated corresponding to a hot water temperature, the boiling water of the boiling water tank 16 is discharged to the bathtub 1 and the hot water 2 inside the bathtub 1 is heated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath apparatus, and more particularly to a bath apparatus, in which hot water in a bath tub is forcibly circulated, while filtering, sterilizing, and other cleaning treatments are performed, and at the same time, the bath temperature is maintained at a bath temperature. The present invention relates to a so-called 24-hour bath apparatus in which the user can take a bath at any time for 24 hours.

[0002]

2. Description of the Related Art Recently, a bathtub hot water purifying apparatus, that is, a 24-hour bath, which constantly keeps hot water in a bathtub clean and at an appropriate temperature, enables comfortable bathing for 24 hours, and saves water, has been actively used. It has become.

An example of such a bath water purifying apparatus is as shown in FIG. 4, in which 1 is a bath, 2 is hot water, 3 is a suction pipe for pumping hot water 2 in the bath 1, and 4 is a hot water pipe. An apparatus main body in which devices for cleaning the hot water pumped up by the hot water suction pipe 3 are collectively arranged, and 9 is a spout pipe for ejecting the hot water treated by the device main body 4 again into the bathtub 1. .

In order to remove dirt from the bath water, a filter tank 5 containing various types of granular filter media such as activated carbon, activated stones, and porous ceramic balls, and a fibrous filter is used. A circulation pump 6 for forcibly circulating hot water, an electric heater 7 for keeping the temperature of the hot water at an appropriate temperature, and an ozonizer 8 as an ozone sterilizer for the hot water.
Etc. are provided.

Numeral 10 is a prefilter attached to the tip of the hot water pipe 3 for removing large dirt in advance before it is pumped up to the apparatus main body 4, and 11 is hot water after cleaning treatment in the bathtub 1 as a jet flow having a high flow rate. Intake pipe 1 ejected to the
Reference numeral 2 is a jet nozzle connected to the ejector section.

A solenoid valve 13 for opening and closing a pipe is provided at the end of an intake pipe 12 connected to an ejector portion of the jet nozzle 11, and an ozonizer 8 is provided on the way. When the solenoid valve 13 is opened, the jet nozzle 11 is opened. Air is sucked in from the suction pipe 12 by the suction force of the air, this air is mixed into the hot water in the ejector section 24, and a jet flow is jetted out of the jet nozzle 11 into the bathtub 1 to form a bubble bath. The air sucked into 12 is ozonized and jetted into the bathtub 1 to sterilize the hot water 2 with ozone.

[0007]

However, in the apparatus configured as described above, since the hot water is heated by the electric heater, the running cost is increased, and the capacity of the electric heater is 800 W in relation to the wiring capacity. The heating capacity is insufficient to heat 200 liters of bath water, so that the heating speed becomes slow.

As a result, it is difficult to raise the temperature of the hot water during bathing, and it is difficult to increase the temperature when the hot water is replaced or when the operation of the apparatus has been stopped for a long time. Takes a very long time to heat the hot water to the bathing temperature.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bathtub hot water purifying apparatus which solves the above-mentioned drawbacks of the prior art, reduces heating costs, and can rapidly heat hot water to a bathing temperature. .

[0010]

[Means for Solving the Problems] That is, the present invention is directed to a filtration tank for purifying bath water from a hot water pipe by means of a circulation pump for cleaning and removing contaminants ejected from the hot water pipe to the bath again, ozone, ultraviolet rays or the like. The main body of the equipment equipped with cleaning equipment such as a sterilizer for sterilizing with, and the bath water is sucked in from the water absorption pipe by the water absorption pump and stored as hot water. A hot water tank and a hot water tank were installed side by side, and the hot water was heated by a cheap heat source such as midnight power, solar heat, kerosene, and the like, and was mixed so that the hot water in the bathtub could be heated cheaply and rapidly.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described based on the piping diagram of the embodiment shown in FIG. 1. The same components as those of the conventional example are designated by the same reference numerals.

In this embodiment, the apparatus body 4 is provided with the ultraviolet sterilizer 14 as a sterilizer, so that the intake pipe 12 is not shown unlike the conventional example, but of course, the tip of the spout tube 9 is similar to the conventional example. The jet nozzle 11 connected to the intake pipe 12 is attached so that the user can enjoy the bubble bath.

Reference numeral 15 is a hot water temperature sensor provided in the apparatus main body 4, the hot water temperature sensor 15 constantly detects the temperature of the hot water in the bathtub, and the controller takes a bath based on the hot water temperature detected by the hot water temperature sensor 15. The person controls to maintain the set hot water temperature.

Reference numeral 16 is a hot water tank for storing the bath water 2 as hot water. The hot water tank 16 has a water inlet 17 for sucking the bath water 2 on the lower surface and a water outlet 18 for discharging the hot water on the upper surface. Each of them is equipped with one hot water tank
Since 6 is of an electric heating type, a heater 19 as a heat source for heating the stored hot water is provided in the lower portion.

The hot water in the hot water tank 16 can be heated by a solar heating type, a kerosene heating type, or a combination heating type thereof in addition to the electric heating type heated by the heater 19 as described above. In order to use electricity, late night electricity with low electricity cost should be used as much as possible.

Reference numeral 20 denotes a water absorption pipe for sucking the bath water 2 into the hot water tank 16. The water absorption pipe 20 is provided with a water absorption pump 21 in the middle thereof, one end of which is connected to the water intake port 17 of the hot water tank 16 and the other end of which is connected. Is connected to bathtub 1.

Reference numeral 22 is a water outlet pipe for flowing out the hot water stored in the hot water tank 16. This water outlet pipe 22 has one end connected to the water outlet 18 of the hot water tank 16 and the other end connected to the bathtub 1. are doing.

Therefore, the circulating pump 6 is operated to clean the hot water 2 in the bathtub 1 in the apparatus body 4, and the hot water pump 21 is operated to discharge hot water stored in the hot water tank 16. The heating of the hot water 2 in the bathtub 1 can be performed independently.

That is, in the apparatus constructed as described above, when only the circulation pump 6 operates, the hot water 2 in the bathtub 1
Is sucked from the hot water pipe 3, is subjected to a cleaning process such as filtration and sterilization in the apparatus body 4, and is jetted again into the bathtub 1 through the hot water pipe 9.

Next, the circulation pump 6 and the water absorption pump 21 at the same time.
When the hot water is activated, the hot water 2 in the bathtub 1 is sucked from the hot water suction pipe 3 and flows into the apparatus main body 4, and at the same time, is also sucked from the water suction pipe 20 and flows into the hot water tank 16 through the water suction port 17.

Bathtub 1 flowing into the apparatus body 4 from the hot water pipe 3
The hot water 2 in the inside is of course cleaned and flows out to the spout pipe 9, but when the hot water 2 in the bathtub 1 flows into the hot water tank 16, for example, the hot water stored at about 80 ° C. is discharged through the outlet 18. The same amount of hot water that has flowed into the water pipe 22 is pushed out from the water outlet 18.

As a result, the hot water pushed out of the hot water tank 16 is discharged to the bathtub 1 through the water discharge pipe 22, so that the hot water 2 in the bathtub 1 is heated by mixing the hot water.

Therefore, the hot water 2 in the bath tub 1 is stored in the apparatus main body 4
At the same time, the hot water stored in the hot water tank 16 is immediately mixed and heated according to the hot water temperature to be kept at the set temperature.

The control of the apparatus configured as described above will be described below with reference to the control block diagram of FIG. 2 and the flowchart of FIG.

Reference numeral 23 denotes a key input device. The key input device 23 is provided with various keys for setting operating conditions of the device, including a start / stop key for operating or stopping the device. A hot water temperature setting key 24 for setting the hot water temperature is also provided.

Reference numeral 15 is a hot water temperature sensor provided to detect the temperature of the hot water for controlling the hot water temperature, and in order to ensure the safety of the apparatus, the circulation pump 6 detects that water has come out of the pipeline. A differential pressure sensor 25 for detecting the pressure difference between the water absorption side and the discharge side, and a fall sensor 2 for detecting the fall of the device.
6 are also deployed.

Reference numeral 27 is a control device for controlling the entire apparatus. The control device 27 is a CPU 28 as a central processing unit, a ROM 29 as a storage device for storing various control data including a control program, The microcomputer comprises a RAM 30 as a temporary storage device for data for arithmetic processing.

Reference numeral 31 is a circulation pump drive circuit for driving the circulation pump 6, and 32 is a hot water tank heater drive circuit for supplying electric power to the hot water tank heater 19 when the hot water tank 16 is electrically heated.

Reference numeral 33 is a water absorption pump drive circuit for driving the water absorption pump 21, and 34 is a display device drive circuit.
It is a circuit for displaying the operating states of various devices including the hot water temperature on the display device 35.

In the device thus constructed, the control device 27 firstly performs the key input device 2 in the first step S1.
It is determined whether or not the operation is started by No. 3, and when it is determined that the operation is started, the operation of the circulation pump 6 is started in the second step S2, and the hot water temperature sensor 15 detects it in the third step S3. It is determined whether the hot water temperature is lower than the hot water temperature set by the hot water temperature setting key 24.

When it is determined that the hot water temperature is lower than the set hot water temperature, the operation of the water absorption pump 21 is started in the fourth step S4 to allow the hot water tank 2 to flow into the hot water tank 16 and at the same time supply the same amount of hot water. It is discharged into the bathtub 1 to heat the bathtub hot water 2.

When it is determined in the third step S3 that the hot water temperature is equal to or higher than the set temperature, the operation of the water suction pump 21 is stopped in the fifth step S6, and the hot water tank 16 of the bath water 2 is heated.
To stop the flow of water into the bathtub 1 to discharge hot water into the bathtub 2
Stop heating.

In this way, by controlling the operation of the water absorption pump 21 according to the hot water temperature detected by the hot water temperature sensor 15 by the control device 23, the hot water 2 in the bathtub 1 is cleaned by the device body 4 and at the same time. An appropriate amount of hot water stored in the hot water tank 16 is mixed and heated to maintain the set temperature.

[0034]

The present invention is configured as described above, and it becomes possible to discharge hot water into a bathtub to rapidly heat the hot water to a set temperature, and at the same time, use cheap night power, solar heat, kerosene, etc. as a heating source. As a result, heating costs will be lower.

[Brief description of drawings]

FIG. 1 is an example piping diagram,

FIG. 2 is a control block diagram,

FIG. 3 is a flowchart,

FIG. 4 is a conventional piping diagram.

[Explanation of symbols]

 1 Bathtub 2 Hot water 3 Hot water pipe 4 Device body 5 Filtration tank 6 Circulation pump 9 Fountain pipe 14 UV sterilizer 15 Hot water temperature sensor 16 Hot water tank 20 Water absorption pipe 21 Water absorption pump 22 Water discharge pipe

Claims (1)

[Claims] 1. A filter tank for purifying bathtub hot water from a hot water pipe by a circulation pump for cleaning and removing contaminants ejected from the hot water pipe to the bathtub again, and a sterilizer for sterilizing with ozone or ultraviolet rays. The main body of the equipment equipped with the treatment equipment and the hot water tank that sucks in the hot water from the water absorption pipe by the water absorption pump and stores it as hot water and discharges the hot water from the water discharge pipe to the bathtub according to the temperature of the hot water to heat the hot water A bath water purifying device characterized in that