JP2682745B2 - Hot water circulation treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water circulation treatment device arranged in a bathroom for general household use.

[0002]

2. Description of the Related Art Conventionally, this kind of hot water circulation treatment device has been proposed as a device for maintaining a hot water temperature in a bathtub for home use at a predetermined temperature and for removing wastes and the like from the human body existing in the hot water. ing. Therefore, this type of device is equipped with a circulation pump for circulating hot water, a filtration tank for removing waste products, a heater tank for maintaining hot water at an appropriate temperature, and a sterilizing means for sterilizing E. coli. Then, there was one in which these tanks were connected in an appropriate order via a circulation path.

[0003]

[0004]

[SUMMARY OF THE INVENTION However, when said sucked air by reason of any hot water circulation apparatus during operation, air is circulated in each vessel, in particular the heater tank
When hot water is not <br/> for heater is provided in the (heating means), there is a problem that the boil-dry state. The present invention was made to solve the above problems, and its object is to provide a hot water circulation processing device capable of preventing the boil-dry arsenide Ta.

[0005]

In order to achieve the above object,
Therefore, the invention according to claim 1 is a circulation path through which hot water circulates.
For hot water circulation processing device with heating means of hot water interposed in the middle
A heater is vertically arranged in the heating means.
A heater compartment is provided, and upstream into the heater compartment
Upper end of the heater from the side circulation path through the hot water supply section
It can be configured to supply hot water to a position above
The hot water outlet in the heater housing part to the heater
The main point is that it is installed above the upper end of the
You.

The invention according to claim 2 is the above-mentioned claim.
In the invention described in 1, the warm water is stored in the heater housing.
Detects the temperature inside the heater housing below the outlet
The gist is that a temperature detector is provided.

[0007]

Therefore, in the invention described in claim 1, the hot water outlet is provided.
The water level of the hot water in the heater housing is lower than the height of
As a result, the heater was constantly submerged in warm water
To be in a state. In the invention according to claim 2, the contract
In addition to the function of the invention described in claim 1,
If the hot water in the
Detected by the degree detector.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a hot water circulation treatment device used in a domestic bathroom will be described with reference to the drawings. As shown in FIG. 2, the hot water circulation treatment device A is attached to a wall near the bathtub 2. An inlet 3 for sucking in hot water and an outlet 4 for discharging treated hot water are provided in the lower part of the right and left sides of the main body case 1 of the hot water circulation processing device A. In this embodiment, a suction pipe 5 is connected to a suction port 3 on the left side surface, a discharge pipe 6 is connected to a discharge port 4, and the lower ends of both pipes 5 and 6 are inside a bathtub located below the surface of the bathtub 2. Delivered to unit U. Further, the inlet 3 and the outlet 4 on the right side surface are sealed by a sealing plug 7 for preventing leakage of hot water. Further, an operation panel 8 for controlling various tanks in the main body is provided at the front of the hot water circulation processing device A. The operation panel 8 is provided with an on / off switch 27. The operation panel 8
In addition, a large number of switches and LEDs are provided, but the description thereof is omitted because it is not directly related to the gist of the present invention. Reference numeral 9 is a control box that accommodates a control circuit 60, which will be described later.

As shown in FIG. 1, a circulation pump 10, a filtration tank 11, a septic tank 12 and a heating / heating unit are provided in the main case 1.
A sterilization tank 13 and a flow rate sensor 14 are provided. The circulation pump 10 is connected to both suction ports 3 via a T-shaped joint 15 and outward pipes 16a to 16d. In addition, warm water can be inhaled from either of the inlets 3. The circulation pump 10 is a filter tank 11, and the filter tank 11 is a septic tank 12.
And the flow path pipes 17a and 17b which are a part of the circulation path, respectively. The septic tank 12 is the heating / sterilization tank 1
3 and bifurcated flow pipe 18 are connected. The heating / sterilization tank 13 is provided with a heater housing 20 for housing a heater 19 and a UV lamp housing 22 for housing a UV lamp 21. The flow passage pipe 17b is provided above the heater 19 in the upstream region of the heater 19, and the bifurcated flow passage pipe 18 is provided below the heater housing portion 20.
The heater 19 is always submerged in water by providing the two hot water supply units 31 connected through the above, and further forming the opening portions 46 communicating with each other in the storage units 20 and 22 above the upper end position of the heater 19. It is possible.

A thermistor 23, which is a temperature detector for detecting the temperature of hot water, is embedded and fixed to the lower part of the upper wall slope of the heating / sterilization tank 13 on the heater 19 side. The heating / sterilization tank 13 is connected to the flow rate sensor 14 at the outlet 24 provided in the lower portion of the UV lamp housing 22 via the flow path pipe 17c and the L-shaped joint 25a.
The flow rate sensor 14 includes the various tanks 10, 11, 12, 1
It is arranged below the heating / sterilization tank 13 so as to be positioned lower than 3, and is connected to both discharge ports 4 via the L-shaped joint 25b, the T-shaped joint 15 and the return pipes 26a and 26b.
Then, hot water can be discharged to either of the outlets 4.

As shown in FIG. 3, the flow sensor 14 is a terminal.
It is a bottle type, and when the impeller 29 is rotated by hot water flowing inside, it is converted into pulses per minute and a signal is sent to the control box 9. Next, details of the heating / sterilization tank 13 of the present embodiment will be described. As shown in FIG. 4, heating including a heater 19 and a UV lamp 21
The sterilization tank 13 is formed of synthetic resin by blow molding, and a heater housing portion 20 extending in the vertical direction and a UV lamp housing portion 22 similarly extending in the vertical direction are arranged in parallel in a bifurcated shape. Then, it is fixed to the main body case 1 of the hot water circulation device with bolts 30a and 30b. Heater and U
The upper end of the V lamp heating / sterilization tank 13 is positioned on the inner surface of the main body case 1 of the hot water circulation device via a bracket 33 engaged with the lid 32. And a pair of screws 3
The bracket 33 is fixed to the inner surface of the main body case 1 by 6. Also, the head of the bracket 33 is UV
A lamp insertion hole 37 is formed, and a concave serration 38 is formed on the entire inner surface of the UV lamp insertion hole 37.

The upper end opening 34 of the heating / sterilization tank 13 for inserting the UV lamp 21 has a male screw portion 39 formed on the outer peripheral surface thereof. A female screw portion 40 formed on the circumference is screwed. The lid 32 has a mounting hole 42 for mounting the UV lamp 21, and the lower surface of the lid 32 has a mounting portion 43 communicating with the mounting hole 42. A female screw portion 44 is formed on the inner peripheral surface. Further, the mounting hole 4 is provided on the upper surface of the lid 32.
A convex serration 45 is projectingly provided around the circumference of the bracket 2, and is engaged with the concave serration 38 of the bracket 33 so as not to rotate relative to the concave serration 38.

Of these, UV is stored in the UV lamp housing 22.
The lamp 21 is arranged in the up-down direction, and is detachably screwed and fixed to the mounting portion 43 of the upper end portion 22b thereof. on the other hand,
On the right side (the right side in FIG. 4) of the hot water supply section 31 of the heater housing section 20, a protrusion 47 that projects downward is formed. The first flow channel pipe 48 of the bifurcated flow channel pipe 18 is connected to the protrusion 47, and the cylindrical ceramic heater 19 is vertically arranged on the protrusion 47. On the other hand, the second channel pipe 49 of the bifurcated channel pipe 18 is connected to the left side of the hot water supply unit 31 of the heater housing unit 20 and communicates with the inside of the heating / sterilization tank 13. A draining member 52 is attached to the outer periphery of the protrusion 47,
Heating the electric wire connection to the ceramic heater 19
Water is prevented from flowing in through the sterilization tank 13.

Next, the electrical construction of the hot water circulation processing apparatus of this embodiment will be described with reference to FIG. The circulation pump 10 and the heater 19 are connected to the thermistor 23, which is the flow rate sensor 14 and the temperature sensor, via the control circuit 60.
It is connected to the. Then, the control circuit 60 controls the heater 19 and the circulation pump 10 based on the detection value of the flow rate sensor 14.
Is stopped, and the heater 19 is operated and stopped in order to adjust the temperature of the hot water based on the detection value of the thermistor 23.

The operation of this embodiment will now be described. When the on / off switch 27 is turned on during normal use, the circulation pump 10 is operated and the warm water sucked from the bathtub 2 through the suction pipe 5 is circulated. Be led to. The warm water discharged from the circulation pump 10 is filtered by the filter tank 11 and guided to the septic tank 12. When the hot water introduced into the septic tank 12 is passed through, waste products such as fat and organic substances are removed and introduced into the heating / sterilization tank 13 through the bifurcated flow path pipe 18. The warm water introduced into the heating / sterilization tank 13 is heated to a predetermined temperature (which can be set freely by the operation panel 8) by the heater 19, and further sterilized by the UV lamp 21. Next, the hot water passes through the flow rate sensor 14 and is discharged from the discharge pipe 6. In this way, the heating / sterilization tank 13 can efficiently heat the heater 19 without adhering organic substances or dust to it, and the heater 19 lasts longer. Further, in the UV lamp 21, it is sufficient to sterilize only bacteria such as Escherichia coli without degrading protein or fat, and the load is small, so that the UV lamp 21 operates effectively.

When air is sucked into the circulation path of the hot water circulation processing device A for some reason, the air passes through each tank and is discharged from the heater 19 of the heating / sterilization tank 13. The discharged air passes through the opening 46 and the outlet 24. In this state, the warm water in the heating / sterilization tank 13 remains only below the opening 46 of the heater housing 20. As a result, the heater 19 is always submerged in the warm water, so that it is possible to prevent emptying.

If the hot water in the heater housing 20 in the heating / sterilization tank 13 decreases for some reason, the thermistor 23 detects overheating of the heater 19. Further, when the flow rate sensor 14 detects an insufficient flow rate, the control circuit 60 in the control box 9 shuts off the power supply circuits of the heater 19 and the circulation pump 10 to stop the entire apparatus. In this way, not only emptying of the heater 19 but also overheating can be prevented.

The control circuit 60 operates in the same manner as above when the circulation sensor 10 or the filtration tank 11 and the like in the upstream of the flow rate sensor 14 have a flow rate lower than the normal flow rate of hot water due to the inclusion of foreign matter. Stop the entire device. As described above, in the hot water circulation treatment apparatus A of the present embodiment, by providing the heating / sterilization tank 13 at the end of each treatment tank, it is sufficient to heat and sterilize the purified hot water that has been filtered and purified. Both devices are not affected by the fact that the organic substances and dusts of the filter adhere to the heater 19 to reduce the heating ability of the heater 19 or the ability of proteins and fats to be decomposed by the UV lamp 21 to kill bacteria such as Escherichia coli. The accurate operating condition of can be maintained.

Further, in the upstream region of the heater 19, the heater 1
9 the channel tube 17b provided at an upper position than the bottom of the heater accommodating portion 20 provided hot water supply unit 31, further, an opening 46 of the heater retract and section 20 above the upper end position of the heater 19 By doing so, even if air is sucked in, warm water remains below the opening 46 and the heater 19 is always kept submerged, so that emptying can be prevented.

Further, even if the warm water in the heater housing 20 is reduced for some reason and the heater 19 becomes empty, the thermistor 23 quickly detects the overheated state of the heater 19, and the flow rate sensor 14 determines the flow rate. Since the shortage is detected, the control circuit 60 operates and the heater 19
And the operation of the pump 10 can be stopped. Further, since the filtration tank 11 and the septic tank 12 are arranged on the left and right with the circulation pump 10 having a relatively heavy weight as the center, the entire warm water circulation treatment device A can be balanced and each tank can be reasonably arranged. Therefore, the respective tanks are connected to each other in the shortest distance, and the size and weight of the entire hot water circulation processing device A can be reduced. The present invention is not limited to the above embodiment, and the order of joining the tanks may be changed upstream of the heating / sterilization tank 13.

[0021]

As described above in detail, according to claim 1,
According to the invention, the heater is always submerged in warm water.
Since the prevention of the boil-dry of the heater due to inhalation of air
I can . According to the invention of claim 2,
In addition to the effects of the invention described in Item 1,
Promptly respond to water overheating and heater overheating
Can be

[Brief description of the drawings]

FIG. 1 is a sectional view showing the inside of a hot water circulation treatment device.

FIG. 2 is a perspective view showing an installation state of the hot water circulation processing device.

FIG. 3 is a schematic diagram showing an operation state of a flow sensor.

FIG. 4 is a cross-sectional view showing a heater and a UV lamp storage case.

FIG. 5 is a block diagram showing an electrical configuration of a hot water circulation treatment device according to an embodiment.

[Explanation of symbols]

2 bathtubs, 10 circulation pumps, 11 filtration tanks, 12 septic tanks, 13 heating / sterilization tanks as heating means , 17a
Flow tube, 19 heater, 20 heater housing, 21
UV lamp, 23 thermistor as temperature detector ,
31 hot water supply part, 46 opening as hot water outlet , A
Hot water circulation treatment device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-242115 (JP, A) Actual flat 3-67858 (JP, U) Actual flat 1-117336 (JP, U)

Claims (2)

(57) [Claims] 1. A hot water supply is provided in the middle of a circulation path through which the hot water circulates.
In a hot water circulation treatment device with a heating means interposed,
Heater storage with a heater arranged vertically in the heating means
A part is provided, and from the circulation path on the upstream side into the heater storage part
Position above the upper end of the heater via the hot water supply
The heater can be configured to supply hot water up to
Place the hot water outlet in the storage section above the upper end of the heater.
A hot water circulation treatment device, which is provided at one position. 2. The heater housing has a hot water outlet rather than a hot water outlet.
Temperature detection to detect the temperature inside the heater housing at the lower position
The hot water circulation treatment device according to claim 1, wherein a device is provided.
Place.