JPH0810308A - Hot water circulation filter with ozone sterilizing means for bathtub - Google Patents

Abstract

PURPOSE:To provide a hot water circulation filter, in which water in a bathtub can be sterilized and purified enough by using ozone. CONSTITUTION:A filter main body 13 of a hot water circulation filter comprises a filtration case 23, a filtration case cover 22 having an air vent device 21 formed on the upper part thereof, and filtering material storing cylinders 24, 26 which are disposed in the filtration case 23 and filled with filtering materials 28, 29. A pipe 33 is extended downward from the lower side of the air vent device 21 to such a position not to touch the small particle filtering material in the upper filtering material storing cylinder 24. Accordingly, the contact area between ozone air and water in the bathtub can be increased so as to use ozone effectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water circulating filtration device for circulating and filtering hot water in a bath to keep it clear.

[0002]

2. Description of the Related Art As a conventional example technically closest to the present invention, there is a patent application filed as Japanese Patent Application No. 6-121985.

That is, an ozone generator is attached to the suction side of a hot water circulation filter provided outside the room, and the sucked bath water and ozone air are agitated by an impeller of a circulation pump to promote the dissolution of ozone into the bath water. After that, the bath water is clarified by ozone dissolved in the bath water, and the ozone air separated from the bath water is discharged by an air venting device provided on the upper part of the filter body on the downstream side of the pump.

[0004]

However, in such a conventional example, even if the bath water and the ozone air are sufficiently agitated by the circulation pump, as soon as they enter the inside of the filter through the circuit pipe. Since ozone air is exhausted to the outside by the air vent device, the bath water and ozone air come into contact with each other only in the circuit pipe from the circulation pump to the filter, and the ozone air exhausted to the outside still remains. Despite the concentration having sufficient sterilizing ability, there was a waste of being discharged.

[0005]

SUMMARY OF THE INVENTION The present invention has been made by paying attention to such conventional problems, and an upper filter material in a filter is provided below an air venting device provided in the upper part of the filter. The purpose is to solve the above problems by lowering the pipe to a position where it does not touch the small particle filter material of the container.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of the present invention. First, the configuration will be described with reference to FIG. 2. Reference numeral 1 is a bathtub, a circulation port 2 is provided in the bathtub 1, and a filter 3 is provided in the circulation port 2 to prevent large dust such as hair from flowing out to the hot water circulation filtration device 4. .

The filter 3 is removable so that it can be easily cleaned. Two pipes are connected to the circulation port 2, one is a forward pipe 5 and the other is a return pipe 6.
The return pipe 6 is connected to the circulation pump 7, and an ozone generator 10, an orifice 8, and a suction port 9 are connected to a part of the return pipe 6 on the suction side 7A of the circulation pump 7 via a solenoid valve 11. There is.

The discharge side 7B of the circulation pump 7 is connected to the connection port 12C of the first three-way valve 12, the connection port 12A of the filter body 13 and the other connection port 12B of the second three-way valve 14. It is connected to the connection port 14A.

The filter body 13 has at least three pipe connection ports, one is an inlet 15 connected to the connection port 12A of the first three-way valve 12 described above, and one is a connection of the second three-way valve 14. The outlet 16 connected to the port 14C, and the remaining one is an outlet 17 for discarding water during backwashing, which is connected to the two-way valve 18, and the outlet side of the two-way valve 18 is guided to the drain groove.

The connection port 14B of the second three-way valve 14 is connected to the heater 19, and the hot water temperature detecting element 20 is provided on the way. The outlet side of the heater 19 is connected to the forward pipe 5 described above,
The circulation circuit is completed.

Reference numeral 35 is a remote controller provided with a filtration operation switch and a backwash operation switch (not shown). Reference numeral 34 denotes a control device, which is controlled by the remote controller 35, the hot water temperature detecting element 20,
The circulation pump 7, the ozone generator 10, the solenoid valve 11, and the heater 19 are controlled.

Next, the filter body 13 will be described in detail with reference to FIG. 1. Reference numeral 13 is a filter body, and the filter body 13
Is composed of a filter case lid 22 provided with an air venting device 21 on the upper part, and two types of filter material container tubes 24, 26 provided inside the filter case 23.

The air venting device 21 is automatic, and a pipe 33 is connected to the lower side of the air venting device 21, and the pipe 33 does not touch the filter material 28 of the upper filter media container 24 in the filter case 23. It has been lowered to the position.

The filter medium container cylinders 24 and 26 have different diameters, the upper filter medium container cylinder 24 has a small diameter and the lower filter medium container cylinder 26 has a large diameter. A mesh 27 is attached to the bottom of the. Further, the insides of the filtration material container cylinders 24 and 26 are occupied by a small particle filtration material 28 and a large particle filtration material 29 having different particle sizes. As the small particle filter medium 28, a filter medium having a diameter of about 3 mm or less is used.

Reference numeral 30 is a packing that seals the inside of the filtration case 23, the lower part of the upper filter material container 24, and the upper part of the lower filter material container 26. In addition, the lower filter material container 2
6 is placed on the inner tube support 31 placed on the bottom of the filtration case 23. 32 is a packing that seals between the filtration case lid 22 and the filtration case 23.

[0016]

Next, the operation will be described. The control device 3 is operated by operating a filtration operation switch (not shown) provided on the remote controller 35.
When the circulation pump 7 starts operating according to the instruction of 4, the hot water in the bathtub 1 is sucked from the circulation port 2 and sucked into the circulation circuit.

At this time, when the solenoid valve 11 of the ozone generator 10 provided in the middle of the return pipe 6 is opened according to the instruction of the controller 34, the suction force of the circulation pump 7 sucks air from the suction port 9. To be done.

At this time, similarly, when the ozone generator 10 starts to operate according to an instruction from the controller 34, ozone is generated in the ozone generator 10 and the ozone is sucked into the circulation circuit in which the bath water flows. Be sucked.

The sucked bath water and ozone air are strongly stirred by an impeller (not shown) of the circulation pump 7 to make sufficient contact between the bath water and ozone to sterilize bacteria and general bacteria in the bath water. I do. After that, ozone in the bath water gradually separates, together with the bath water, from the connection port 12C of the first three-way valve 12 through the connection port 12A,
It enters into the filtration case 23 of the filter body 13 from the inlet 15.

An air venting device 21 is provided above the filtration case lid 22, and ozone air separated from the bath water is discharged from the air venting device 21 to the outside.

However, since a pipe 33 having a length that does not touch the small particle filter 28 in the upper filter container 24 is connected to the lower part of the air venting device 21, the bath water in the filter case 23 is The water level of is up to the upper part of the upper filter medium container 24 outside the upper filter medium container 24 and to the tip of the pipe 33 inside the upper filter medium container 24.

As a result, when bath water enters the inside of the upper filter medium container 24, a water wall 40 is formed on the inner surface of the upper filter medium container 24 as shown in FIG. At the place where it falls into the container 24, ozone air and bath water are agitated in the same manner as when water falls into the waterhole, and ozone air and bath water can also come into contact with each other within the filter body 13.

Therefore, before the ozone air separated from the bath water is discharged to the outside from the air venting device 21, the ozone is further dissolved in the bath water, so that the bath water can be clarified more than before, and the air venting device 21 Therefore, the concentration of ozone air discharged can be reduced.

[0024]

As described above, according to the present invention, the position below the air venting device provided at the upper part of the filter is such that it does not come into contact with the small particle filter in the upper filter cartridge inside the filter. By lowering the pipe up to, the contact area of ozone air and bath water can be widened, and since the head of the water inside the filter is provided with a drop, it will be agitated even in the falling part, more than before, The bath water can be sufficiently sterilized and clarified, and the concentration of ozone air discharged to the outside can be reduced, so that it can be effectively used.

Further, since ozone dissolved in the bath water exerts an aggregating effect on the dirt in the bath water, the dirt in the bath water is agglomerated and the agglomerated dirt is easily caught by the filter medium, so that the bath water is sufficiently absorbed. I was able to clarify.

[0026]

[Other Embodiments] In the present invention, the method of discharging ozone air by the automatic air bleeding device has been described, but as shown in FIG. can get.

In this case, two electrode rods 3 having different lengths are used.
6 and 37 are attached so as to enter the upper filtering material container 24, and the earth 38 and the solenoid valve 39 are attached to the upper surface of the filtration case lid 22. The solenoid valve 39 is controlled by the control device 34.

When ozone air flows into the filter body 13 through the inlet 15, the water level of the bath water in the filter case 23 is pushed down by the ozone air and goes down.

When ozone air continues to increase in the filtration case 23 and the water level of the bath water separates from the tip of the long electrode rod 36,
The solenoid valve 39 is opened to discharge ozone air to the outside,
When the bath water level rises and reaches the tip of the short electrode rod 37, the solenoid valve 39 is controlled to be closed.

In this case, the water wall 40 on the inner surface of the upper filter medium container 24 fluctuates between 40 and 40 ', but the same effect as when the automatic air venting device and the pipe therebelow are provided. was gotten.

[Brief description of drawings]

FIG. 1 is a sectional view of a filter showing an embodiment of the present invention.

FIG. 2 is a system diagram of a hot water circulation filtration device equipped with a filter according to an embodiment of the present invention.

FIG. 3 is a sectional view of a filter showing an embodiment of the present invention,
The contact surface between the bath water and ozone air is indicated by a broken line.

FIG. 4 is a cross-sectional view of a filter showing another embodiment of the present invention.

[Explanation of symbols]

 1 Bathtub 2 Circulation Port 3 Filter 4 Hot Water Circulation Filtration Device 5 Outgoing Pipe 6 Return Pipe 7 Circulation Pump 7A Suction Side 7B Discharge Side 8 Orifice 9 Suction Port 10 Ozone Generator 11 Solenoid Valve 12 First Three-Way Valve 12A Connection Port A 12B Connection port B 12C Connection port C 13 Filter body 14 Second three-way valve 14A Connection port A 14B Connection port B 14C Connection port C 15 Inlet 16 Outlet 17 Discharge port 18 Two-way valve 19 Heater 20 Hot water temperature detection element 21 Air vent Device 22 Filtration case lid 23 Filtration case 24 Upper filtration material storage tube 25 Upper filtration material storage tube holding metal fitting 26 Lower filtration material storage tube 27 Mesh 28 Small particle filtration material 29 Large particle filtration material 30 Packing 31 Inner cylinder support 32 Packing 33 Pipe 34 Control device 35 Remote control 36 Long electrode rod 37 Short electrode rod 38 Earth 39 Electromagnetic 40, 40 'water wall

Claims (3)

[Claims] 1. A circulation pump, an ozone generator, a filter,
In a hot water circulation filtration device for a bathtub equipped with a heater, etc., the water surface position inside the filter is
Ozone sterilizing means characterized in that above the upper end of the upper filter medium container, inside the upper filter medium container, below the upper end of the upper filter medium container and above the small particle filter medium. Hot water circulation filtration device for bathtub. 2. The water level control means has a structure in which a pipe is provided below the air venting device.
A hot water circulation filtration device for a bathtub, which is provided with the ozone sterilization means described above. 3. The water surface control means is an electromagnetic valve, an electrode rod provided inside the filter, and a control board.
A hot water circulation filtration device for a bathtub, comprising the ozone sterilization means according to claim 1.