JPH0615800U - Circulation purification device for bathtub - Google Patents

Abstract

(57) [Abstract] [Objective] In a circulating purification apparatus for a bath for circulating and purifying hot water in a bath, when the biological filtration means is backwashed, the bubbling cleaning effect is enhanced to improve the regeneration of the microbial filter medium. [Structure] The hot water in the bathtub 1 is circulated and jetted by a first pump 6 through an electric valve 7, and the hot water in the bathtub 1 is filtered by a filter filtration means 9 connected in parallel to the first pump 6, and The hot water in the bathtub 1 is biologically filtered by the biological filtering means 16 connected in parallel to the motor-operated valve 7. The ejector 25 is disposed between the fourth electric three-way valve 21 that is switched when the biological filtration means 16 is subjected to reverse flow purification and the biological filtration means 16, and the conduit resistance of the drain pipe 30 is reduced to achieve a bubbling cleaning effect. Increase.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a circulation purification device for a bath, which circulates the hot water in the bath for filtration and sterilization.

[0002]

[Prior art]

 Conventionally, this kind of bathtub circulation purifying apparatus has been constructed as shown in FIG. The configuration will be described below.

As shown in the drawing, the hot water in the bathtub 1 is circulated to the suction port 2 and the jet port 3 provided on the side wall of the bathtub 1 through the suction side pipe 4 and the jet side pipe 5. A pump 6 and a motor-operated valve 7 for controlling the amount of circulation are connected in series. And these members form a jet flow path. The first pump 6 is provided with a filter filtering means 9 for filtering hot water in the bathtub 1 with a filter medium 8, a filtration inflow pipe 10, a first electric three-way valve 11, a second electric three-way valve 12, and a filtration outflow. A first cleaning branch pipe 14 that is connected in parallel via a pipe 13 and between which the hot water flows during backflow cleaning of the filter filtration means 9 is provided between the filtration inflow pipe 10 and the second electric three-way valve 12. Connected. Then, these members form a filter filtration line.

The motor-operated valve 7 is provided with a biological filtration means 16 for biologically filtering the hot water in the bathtub 1 with a microbial filter medium 15, and a sterilizing means 17 such as a sterilizing lamp for further sterilizing the hot water in the bathtub 1 by biological filtration. It is connected in parallel via a biological filtration inflow pipe 19 provided with a second pump 18 for circulating to the means 16, a third electric three-way valve 20, a fourth electric three-way valve 21 and a biological filtration outflow pipe 22. A drain pipe 23 is connected between the first electric three-way valve 11 and the third electric three-way valve 20. In addition, a second branch pipe 24 for washing, in which hot water flows when the biological filter 16 is backwashed, is connected between the third electric three-way valve 20 and the fourth electric three-way valve 21. An ejector 25 for supplying air to the biological filtration means 16 at the time of backwashing is disposed in the second washing branch pipe 24. Then, these members form a biological filtration conduit.

Reference numeral 26 is a heater disposed in the biological filtration pipe for heating the circulating hot water, and 27 is a temperature detector for detecting the temperature of the circulating hot water. The control unit 28 operates the first pump 6 and the second pump 18, and opens and closes the electrically operated valve 7 and the first, second, third and fourth electrically operated three-way valves 11, 12, 20, 21. Are controlled over time and the energization of the heater 26 is controlled by the operation unit 29.

In the above configuration, when the switch of the operation unit 29 is turned on, the electric valve 7 is fully opened by the signal from the control unit 28, and the flow of the arrow D from the suction port 2 of the bathtub 1 to the ejection port 3 is shown. A jet line is formed. On the other hand, the first electric three-way valve 11 and the second electric three-way valve 12 are opened on the A side, and the third electric three-way valve 20 and the fourth electric three-way valve 21 are opened on the B side. A filter filtration line indicated by the flow of arrow E from the pump 6 to the first pump 6 via the filter filtration means 9 is formed. In this state, when the first pump 6 is operated by the signal from the control unit 28, the capacity of the first pump 6, for example, 100

[0007]

[Outer 1]

[0008] About 70% of the hot water per minute / min is ejected from the ejection port 3 together with the bubbles, about 30% of the hot water is supplied to the filter filtering means 9, and the filtered hot water is mixed into the jet conduit D. The circulating filtration operation is performed for a predetermined time. As a result, the filter filtration means 9 filters and purifies the scale and dust in the hot water.

When the operation of the first circulation path is completed, the electric valve 7 is fully closed by a signal from the control unit 28, and the A-side of the first electric 3-way valve 11 and the fourth electric 3-way valve 21 is opened. Then, the second electric three-way valve 12 and the third electric three-way valve 20 are opened on the B side, and from the suction port 2 of the bathtub 1 to the first pump 6, the biological filtration means 16 and the sterilization means 17, the bathtub. The biological filtration conduit shown by the flow of arrow F to the ejection port 3 of No. 1 is formed. In this state, when the second pump 18 is operated by the signal from the control unit 28, the capacity of the second pump 18, for example, 10 (outer 1) / min of hot water is supplied to the biological filtration means 16. Circulation filtration operation 2 is performed for a predetermined time. As a result, the scales and odors in the hot water are decomposed by the microorganisms of the biological filtration means 16 and further sterilized by the sterilization means 17 to be purified. Further, during the second circulation filtration operation, the hot water is heated to an appropriate temperature by the heater 26 and the hot water temperature detector 27 and jetted from the jet port 3.

By such first and second circulation filtration operations, the hot water in the bathtub 1 is always purified and always kept at an appropriate temperature, so that it is possible to take a bath all day in time without replacing the hot water.

The filter material 8 of the filter filtering means 9 becomes dirty as the hot water is filtered, and this dirt is regenerated by backwashing. The backwashing is performed at a predetermined cycle by a timer set in the control unit 28, and the electric valve 7 is fully opened by a signal from the control unit 28 so that the first electric 3-way valve 11 and the second electric 3-way valve 13 are opened. , The third electric three-way valve 20 and the fourth electric three-way valve 21 are each opened on the B side, and the suction port 2 of the bathtub 1 to the first pump 6, the filtration inflow pipe 10, and the first washing branch pipe 14. A first cleaning pipeline indicated by the flow of arrow G to the drain pipe 23 through the filter filtration means 9 is formed. In this state, when the first pump 6 is operated for a required time by a signal from the control unit 28, the filter medium 8 of the filter filtering means 9 is in a fluidized state, the scale and dust are separated, and the drainage together with the hot water is drained. It is discharged from the pipe 23. As a result, the filter medium 8 is regenerated.

Similarly, the microbial filter medium 15 of the biological filter 16 is also regenerated by backwashing. This backwashing is performed at a predetermined cycle by a timer set in the control unit 28, the electric valve 7 is fully opened by a signal from the control unit 28, and the third electric three-way valve 20 has the A side and the fourth electric three-way valve 20. The 3-way valve 21 is opened on the B side, the first electric 3-way valve 11 is opened on the A side, and the second electric 3-way valve 12 is opened on the B side. From the suction port 2 of the bath 1 to the second pump 18 A second washing pipe line indicated by the flow of arrow H is formed to reach the drain pipe 23 through the filtration inflow pipe 19, the second washing branch pipe 24, the ejector 25, and the biological filtration device 16. In this state, when the second pump 18 is operated for a required time by a signal from the control unit 28, the microorganisms 15 in the biological filtration unit 16 are filled with hot water mixed with air supplied from the ejector 25. The microbial filter medium 15 is subjected to bubbling cleaning, and the scale and dust are separated and discharged from the drain pipe 23 together with the hot water. Thereby, the microbial filter medium 15 is regenerated.

[0013]

[Problems to be solved by the device]

 In such a conventional bathtub circulation purifying apparatus, the jet flow through the jet line and the filter filtration through the filter line are performed at the same time during bathing, so that the bath time is short and the degree of contamination is high. , The cleaning time of the dirty hot water becomes short, and the filtration of the microorganisms proceeds to the biological filtration without being sufficiently performed, so that the contamination of the microbial filter medium 15 becomes remarkable, and the microbial filter medium 15 must be frequently regenerated. However, if the microbial filter medium 15 is significantly contaminated, a problem of insufficient regeneration due to an insufficient amount of air for bubbling cleaning and eventually shortening the life of the biological filtration means 16 occurs. there were.

The present invention solves the above-mentioned problems, and it is an object of the present invention to improve the regeneration of a microbial filter medium and to prolong the life of the biological filtration means.

[0015]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is connected between a third electric three-way valve connected to the inlet side and a fourth electric three-way valve connected to the outlet side of the biological filtration means. Of the second cleaning branch pipe forming the cleaning pipe, the ejector arranged in the second cleaning pipe, the first electric three-way valve and the third electric three-way valve. A drain pipe connected between the drain pipe and the ejector is disposed between the fourth electric three-way valve and the biological filtration backwashing means to reduce the line resistance of the drain pipe. It has been.

[0016]

[Action]

 According to the above-mentioned problem solving means, in the present invention, when the third and fourth electric three-way valves are switched by the signal from the control unit to perform backflow cleaning to the second cleaning conduit, the conduit resistance behind the ejector is reduced. The size can be made smaller, the air supplied from the ejector can be increased, the bubbling cleaning effect can be enhanced, and the regeneration of the microbial filter medium can be improved.

[0017]

【Example】

 Hereinafter, this embodiment will be described with reference to FIG. The same components as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the ejector 25 is disposed between the fourth electric three-way valve 21 and the biological filtration means 16 in the vicinity of the outlet of the biological filtration means 16 and has a conduit resistance of the drain pipe 30. Is small.

In the above configuration, the backflow cleaning of the biological filtration means 16 is performed at a predetermined cycle by the timer set in the control unit 28, and the electric valve 7 is fully closed by the signal from the control unit 28, so that the third electric motor 3 is operated. The one-way valve 20 is opened on the A side, the fourth electric three-way valve 21 is opened on the B side, the first electric three-way valve 11 is opened on the A side, and the second electric three-way valve 12 is opened on the B side. The second washing pipe indicated by the arrow H from the suction port 2 to the second pump 18, the biological filtration inflow pipe 19, the second washing branch pipe 24, the ejector 25, and the biological filtration means 16 to the drain pipe 23. A path is formed. In this state, when the second pump 18 is operated for a required time by a signal from the control unit 28, hot water mixed with air supplied from the ejector 25 is supplied to the microorganism filter medium 15 in the biological filtration unit 16. Then, the microbial filter material 15 is bubbled and washed.

FIG. 2 shows the relationship between the pipe line resistance (the resistance of the biological filtering device 16 and the drain pipe 30 behind the ejector 25) and the air inflow amount of the ejector 25 during bubbling. As shown in FIG. 2, the air inflow amount of the conventional example (black mark) is 1 N (outer 1) / min, whereas in this embodiment, the air inflow amount is set as shown by the white mark by using the above-described configuration. The amount increases to 5 N (1 outside) / min.

[0021]

[Effect of device]

 As is apparent from the above description of the embodiments, according to the present invention, the ejector is arranged between the fourth electric three-way valve and the biological filtration means to reduce the line resistance of the drain pipe, so that the reverse flow is prevented. When cleaning, the pipe resistance behind the ejector can be reduced, and the air supplied from the ejector increases, so the bubbling cleaning effect can be enhanced and the regeneration of the microbial filter medium can be improved. Therefore, the life of the biological filtration means can be extended.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a bathtub circulation purifying apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing a relationship between a line resistance and an air inflow amount of an ejector at the time of backflow cleaning of the circulation purification device for a bathtub.

FIG. 3 is a system configuration diagram of a conventional bathtub circulation purifying apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 4 Suction side pipe (jet flow pipe line) 5 Jetting side pipe (jet flow pipe line) 6 First pump 7 Motorized valve 9 Filter filtration means 10 Filtration inflow pipe (filter filtration pipe line) 11 First electric three-way valve (Electric 3-Way Valve) 12 Second Electric 3-Way Valve (Electric 3-Way Valve) 13 Filtration Outflow Pipe (Filter Filtration Pipeline) 14 First Washing Branch Pipe 16 Biological Filtration Means 17 Sterilization Means 18 Second Pump 19 Biological filtration inflow pipe (biological filtration line) 20 Third electric three-way valve (electrical three-way valve) 21 Fourth electric three-way valve (electrical three-way valve) 22 Biological filtration outflow pipe (biological filtration line) 24 Second Washing Branch Pipe 25 Ejector 28 Control Unit 30 Drain Pipe

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number in the agency FI technical display location C02F 1/32 3/06 F24H 9/00 W (72) Creator Makoto Sakai Kadoma City, Osaka Prefecture 1006 Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A jet flow line having a first pump for circulating and jetting hot water in a bath and an electric valve for controlling a circulating amount of hot water in the bath, and a jet line connected in parallel to the first pump. A filter filtration line having filter filtration means for filtering hot water in the bathtub, a biological filtration means connected in parallel to the motor-operated valve for biological filtration of hot water in the bathtub, and a sterilizing means for sterilization and the biological filtration. Means and the second filtration pump for circulating the hot water in the bath in the sterilization means, the electrically operated valve, the first pump, the second pump and the filter filtration conduit and the A control unit for controlling with time the electric three-way valves connected to each of the biological filtration lines, a first electric three-way valve connected to the inlet side of the filter filtration means, and a second connected to the outlet side of the filter filtration means.
First washing branch pipe connected to the electric three-way valve to form a first washing pipe line, and a third electric three-way valve and an outlet side connected to the inlet side of the biological filtration means. 4th connected to
Second washing branch pipe connected to the electric three-way valve to form a second washing pipe, an ejector arranged in the second washing pipe, and the first electric three-way A drain pipe connected between the valve and the third electric one-way valve, and switching the first and second electric three-way valves in response to a signal from the control unit to perform the first cleaning pipe. Backwash the filter filtration means by means of a passage, switch the third and fourth electric three-way valves to carry out backwash washing of the biological filtration means by means of the second washing pipe, and set the ejector to the fourth passage.
The circulating purifying apparatus for a bathtub, which is arranged between the electric three-way valve and the biological filtration means, and in which the conduit resistance of the drain pipe is reduced.