JP3837211B2 - Bathtub cleaning equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bath apparatus, and in particular, while purifying the hot water in the bathtub, for example, filtering and sterilizing, and keeping the bath temperature at the same time, keeping the bath water constantly clean and suitable temperature, it can be used anytime for 24 hours. The present invention relates to a so-called 24-hour bath apparatus that can take a bath at the time of bathing.
[0002]
[Prior art]
Recently, bath hot water purifiers, that is, 24-hour bath devices, have been actively used, which keeps the hot water in the bath constantly clean and at a suitable temperature, can be comfortably bathed 24 hours a day, and also saves water. .
[0003]
One example of such a bath water purifier is as shown in FIG. 6, where 1 is a bathtub, 2 is hot water, 3 is a hot water pipe for pumping up hot water 2 in the bathtub 1, and 4 is a hot water pipe. The apparatus main body in which the cleaning processing equipment for purifying the hot water pumped up in 3 is collectively arranged, and the fountain pipe for respouting the hot water cleaned by the apparatus main body 4 into the bathtub 1 It is.
[0004]
The apparatus body 4 includes a circulation pump 5 for forcibly circulating hot water, a heater 6 as a heating device for keeping hot water at an appropriate temperature, an ultraviolet sterilizer 7 containing an ultraviolet lamp for ultraviolet sterilizing the hot water, In order to remove dirt, cleaning processing equipment such as a filtration tank 8 filled with various granular filter media such as activated stone, activated carbon, ceramic balls or the like directly or in a bucket or net bag is provided.
[0005]
10 is a prefilter for removing large dirt in advance before pumping up the apparatus main body 4, and 11 is an intake pipe provided with an electromagnetic valve for jetting hot water after cleaning into the bathtub 1 as a jet flow having a high flow velocity. When the solenoid valve of the intake pipe is opened, hot water mixed with air spouts out of the jet nozzle 11 into the bathtub 1 and becomes a bubble bath.
[0006]
A hot water temperature sensor 12 controls the operation of the heater 6 based on the hot water temperature detected by the hot water temperature sensor 12, and 13 is a differential pressure sensor, which is a suction port side and a discharge port of the circulation pump 5. Detects water filling from the pressure difference from the side to prevent idling.
[0007]
A recirculation bypass pipe 14 connects the hot water pipe 3 and the fountain pipe 9, and is connected to the fountain pipe 9 via a bypass valve 15 which is an L-type switching valve. The hot water flow of the fountain pipe 9 from the main body 4 is switched between the jet nozzle 11 direction and the recirculation bypass pipe 14 direction.
[0008]
Reference numeral 16 denotes a backwash valve which is a T-type switching valve, which is disposed downstream of the bypass valve 15 of the fountain pipe 9, and 18 is a drainage valve which is a T-type switching valve to which the drainage pipe 19 is connected. When the filter medium in the filtration tank 8 becomes dirty, the backwash valve 16 and the drain valve 18 are switched, and the hot water 2 in the bathtub 1 is moved in the reverse direction in the filter tank 8. The filter medium is washed to reversely wash and drain the drainage pipe 19 to form a reverse line.
[0009]
Further, the backwash valve 16 and the drain valve 18 are connected by a connecting pipe 20, an ejector 21 is provided in the middle of the connecting pipe 20, and the other end of the air vent pipe 22 connected at one end to the upper part of the filtration tank 8. Connected to the ejector 21, the air accumulated in the filtration tank 8 is drained when draining.
[0010]
The upper lid that seals the upper opening of the filtration tank 8 is provided with an air inlet 23 provided with a solenoid valve 24, and an ejector 25 is provided at the hot water inlet of the ultraviolet sterilizer 7. And the ejector 25 are connected by an intake pipe 26, and hot water mixed with air is sterilized by ultraviolet rays so that an ozone sterilizing effect can be obtained by the ozonization of the air mixed in the hot water by ultraviolet rays.
[0011]
Reference numeral 27 denotes a water-filled pipe, which connects the lower part of the filtration tank 8 and the discharge port side of the circulation pump 5 to form a water-filled pipe line to the circulation pump 5, and 28 drains a drain branched from the fountain pipe 9. It is a drain pipe for.
[0012]
In such a piping apparatus, in the cleaning operation mode, the bypass valve 15 and the backwash valve 16 are switched so as to open toward the jet nozzle 11 and the drain valve 18 opens toward the connecting pipe 17, respectively. As shown by the arrow, hot water 2 in the bathtub 1 is sucked from the hot water suction pipe 3 while removing large dirt in advance by the pre-filter 10 and enters the apparatus main body 4 by the operation of 5, and is heated to an appropriate temperature by the heater 6. UV sterilized by the ultraviolet sterilizer 7, filtered by the filtration tank 8, and jetted again as a jet flow from the jet nozzle 11 to the bathtub 1 through the fountain pipe 9.
[0013]
In this case, as described above, when the solenoid valve of the intake pipe connected to the jet nozzle 11 is opened, a jet flow mixed with air is jetted into the bathtub 1 from the jet nozzle of the hot water suction unit 11 to form a bubble bath.
[0014]
As described above, the suction port 23 is provided in the upper lid of the filtration tank 6, and the upper portion of the filtration tank 8 and the ejector 25 at the hot water inlet of the ultraviolet sterilizer 7 are connected by the intake pipe 26. As shown in the figure, the ultraviolet sterilization apparatus 7 performs ultraviolet sterilization of hot water mixed with air, and the air mixed in the hot water at the time of ultraviolet sterilization is ozonized by ultraviolet rays. Can also be obtained.
[0015]
In the apparatus as described above, when the apparatus is installed, the circulation pump 5 must be filled with water prior to the start of operation.
[0016]
When the apparatus main body 4 is turned on, as shown in FIG. 7, the bypass valve 15 is connected to the jet nozzle 11, the backwash valve 16 is connected to the jet nozzle 11 and the connecting pipe 20, and the drain valve 18 is connected. Since it is automatically switched to open in the direction of the pipe 17, water is poured while the upper cover of the filtration tank 8 is opened in this state.
[0017]
Then, the water poured into the filtration tank 8 flows through a pipe line as shown by an arrow, and the circulation pump 5 is filled with water that has passed through the water filling pipe 27 from the pipe line on the discharge port side.
[0018]
[Problems to be solved]
However, when the bypass and backwash valves 15 and 16 are switched to the direction of opening toward the jet nozzle 11 as described above, the drainage from the filtration tank 8 is too good and the filtration tank is filled with water. A considerable amount of the water injected into the water 8 was discharged to the drain pipe 28 through the fountain pipe 9, and the circulation pump 5 was not able to fill the water easily because the amount of water entering through the water filling pipe 27 was small.
[0019]
Further, in order to improve the water filling of the circulation pump 5, the phases of the three valves 15, 16, 18 for bypass, backwash and drain are adjusted so that the drainage of the filtration tank 8 becomes poor. In this case, even if the operation of the apparatus is stopped and water is drained from the cleaning processing equipment such as the filtration tank 8 for maintenance, it cannot be improved.
[0020]
An object of the present invention is to solve the problem of the prior art that it is impossible to improve water filling to the circulation pump 5 as described above and draining water from the cleaning processing equipment such as the filtration tank 8.
[0021]
[Means for Solving the Problems]
The present invention pumps up the hot water in the bathtub from the hot water suction pipe by a circulation pump, circulates in the apparatus main body where various cleaning treatment equipment such as a filtration tank, an ultraviolet sterilizer, and a heater are connected by a pipe line, In the bathtub hot water purifying apparatus for re-spouting the hot water after the cleaning process from the apparatus main body into the bathtub from the fountain pipe disposed in the bathtub, one end of the hot water pipe is below the filtration tank of the apparatus main body. A bypass pipe for recirculation is provided that connects to a pipe line via a bypass valve that switches the pipe line, and the other end is connected to a pipe line between the hot water pipe and the circulation pump. By switching to a bypass pipe for recirculation and filling the circulation pump with water supplied from the opening above the filtration tank, the problem can be solved by using a bath water purifier. Theft could be.
Furthermore, the present invention provides a bath water cleaning apparatus characterized by automatically closing a recirculation bypass pipe when operation is stopped and forming a water drain line from a cleaning processing device such as a filtration tank. We were able to solve the problem.
[0022]
Further, the present invention solves the problem by switching the bypass valve to the fountain pipe side to be a normal operation pipeline when the operation is stopped.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to FIGS.
[0024]
First, when the power of the apparatus main body 4 is turned on, the three valves 15, 16, 18 for bypass, backwash, and drain are switched as shown in FIG. 1, and the bypass valve 15 is directed toward the recirculation bypass pipe 14. The backwash valve 16 is switched in the direction of the jet nozzle 11.
[0025]
When water is injected into the filtration tank 8 to fill the circulation pump 5 in such a valve switching state, all of the injected water flows out from the filtration tank 8 to the fountain pipe 9 as indicated by the arrow, and the bypass valve 15 and flows to the recirculation bypass pipe 14.
[0026]
Water flowing through the recirculation bypass pipe 14 and passing through the hot water suction pipe 3 enters the circulation pump 5 from the suction port side, exits from the discharge port side, passes through the connecting pipe 20, passes through the backwash valve 16, and is taken from the jet nozzle 11. Flows out to 1.
[0027]
Since the water injected into the filtration tank 5 in this way flows very smoothly through the pipeline that flows out to the bathtub 1 through the circulation pump 5, the water filling of the circulation pump 5 can be very good.
[0028]
Therefore, the water filling of the circulation pump 5 can be improved without providing the water filling pipe 27 that connects the lower end of the filtration tank 8 and the discharge port side of the circulation pump 5.
[0029]
Next, when the operation of the apparatus is stopped for maintenance, as shown in FIG. 2, the bypass valve 15 is in the direction of the jet nozzle 11, and the backwash valve 16 is in the direction of the jet nozzle 11 and the direction of the connecting pipe 20. The drain valve 18 is automatically switched to open in the direction of the connecting pipe 17.
When the water is drained in this state, the water in the filtration tank 8 flows into the fountain pipe 9 as indicated by the arrow, and the bypass valve 15 and the backwash valve 16 are opened in the direction of the jet nozzle 11. It flows out to the bathtub 1 through 28 and the jet nozzle 11, and can drain well.
[0031]
As described above, since hot water is sterilized in the ultraviolet sterilizer 7 in a state where air is mixed in, air is accumulated in the upper part of the filtration tank 8. As a result, the intake air is generated in the ejector 21 and the accumulated air is drained through the air vent pipe 22 while being discharged.
[0032]
In addition, even if water is drained from the cleaning processing equipment such as the filtration tank 5 and the ultraviolet sterilizer 7, the water stretched on the circulating pump 5 does not escape, so the cleaning pump 5 is operated as soon as maintenance of the cleaning processing equipment is finished. Then, the device can be operated again.
[0033]
FIG. 3 shows a control block diagram of the apparatus. Reference numeral 29 denotes a control apparatus for overall control of the apparatus. The control apparatus 29 stores a CPU 30 as a central processing unit, control data and a control program. The microcomputer includes a ROM 31 as a storage device and a RAM 32 as a temporary storage device for data for arithmetic processing. Of course, the ROM 32 also stores a control program for filling and draining water.
[0034]
Reference numeral 33 denotes a power supply device that supplies power to the apparatus main body 4, and 34 denotes a key input device. The key input device 34 has an operation / stop key for operating or stopping the device, and hot water for setting a hot water temperature. Various keys for setting the operating conditions of the apparatus, such as a temperature setting key, a jet key for a bubble bath, and a heat sterilization key for thermal sterilization operation, are provided.
[0035]
A hot water temperature sensor 12 detects the temperature of hot water flowing through the pipe and controls the bathing temperature during normal operation and the heat sterilization temperature during heat sterilization heat operation set with the heat sterilization operation key. .
[0036]
Reference numeral 13 denotes a differential pressure sensor, which detects the idling state from the pressure difference between the suction side and the discharge side of the circulation pump 5, and naturally detects the idling state with insufficient water filling.
[0037]
A drive circuit 35 drives the circulation pump 5, the heater 6, the ultraviolet sterilizer 7, the display device 36, etc. under the control of the control device 29, and bypasses and backwashes according to the operation mode set by the key input device 34 The three valves 15, 16, 18 for drainage are also opened and closed.
[0038]
That is, when the power source 33 is turned on, the control device 29 automatically switches the three valves 15, 16, and 18 for bypass, backwash, and drain as shown in FIG.
[0039]
As a result, a pipe line is formed so that the water filling of the circulation pump 5 can be performed through the recirculation bypass pipe 14 as described above. Therefore, after the apparatus is installed, the circulation pump 5 can be easily filled with water prior to the start of operation. become.
[0040]
When the operation of the device is stopped by operating the operation / stop key of the key input device 34, the control device 29 automatically sets the three valves 15, 16, 18 for bypass, backwash and drain as shown in FIG. Switch to.
[0041]
This forms a conduit that can drain water from the filtration tank 8 through the fountain pipe 9, so that the filter medium of the filtration tank 8 or the ultraviolet lamp of the ultraviolet sterilizer 7 can be replaced. Water can be easily drained during maintenance.
[0042]
As described above, the control device 29 bypasses, backwashes, and forms a water-filled pipeline when the power supply 33 is turned on and a drainage pipeline when the operation is stopped by the operation / stop key of the key input device 34. The three valves 15, 16, 18 for drainage are automatically switched.
[0043]
Therefore, if it is necessary to fill the circulation pump 5 after the operation is stopped, if the water is filled as it is, the pipe is a drainage pipe, so that the water cannot be filled as in the conventional case. If it is put in, a water-filled pipeline is formed, so there is no problem.
[0044]
As described above, when the power supply 33 is turned on, the control device 29 sets the water-filled pipeline for the circulation pump 5 as shown in FIG. 1 and sets the operation with the operation / stop key with the key input device 34 as shown in FIG. When the operation is stopped with the key input device 34 by the operation / stop key, the three valves 15 for bypass, backwashing and drainage are formed so as to form a water drainage conduit as shown in FIG. Open and close 16 and 18.
[0045]
When the heat sterilization operation is set with the heat sterilization key of the key input device 33, the bypass valve 15 is opened toward the recirculation bypass pipe 14 as shown in FIG. A heat sterilization conduit directly connected through the bypass tube 15 is formed.
[0046]
Then, the cleaned hot water circulated through the apparatus main body 4 and discharged to the fountain pipe 9 returns from the hot water pipe 3 to the apparatus main body 4 without being jetted from the jet nozzle 11 to the bathtub 1 as indicated by an arrow. When heated again by the heater 6 and repeated heating by the heater 6 by this recirculation, the hot water temperature rises to about 70 ° C. and is thermally sterilized.
[0047]
Utilizing the recirculation bypass pipe 14 in this way is extremely advantageous because it can be easily heat sterilized without providing a special heat sterilizer and increasing the size of the device or increasing the electric capacity.
[0048]
Next, when the operation of backwashing is set, as shown in FIG. 5, the backwashing valve 16 and the drainage valve 18 are switched in a direction to form a backwashing conduit.
[0049]
As indicated by the arrow, the hot water 2 pumped from the bathtub 1 through the hot water suction pipe 3 passes through the circulation pump 5 and then goes to the hot water pipe 9 through the backwash valve 16 without going to the heater 6 direction. After passing through the bypass valve 15, it goes to the filtration tank 8.
[0050]
Hot water enters the filtration tank 8 from the bottom outlet to the upper inlet and flows back in the opposite direction to normal, and the filter medium is backwashed, passed through the ultraviolet sterilizer 7 and the heater 6 and through the drain valve 18 to the drain pipe. It flows to 19.
[0051]
【The invention's effect】
The present invention is configured as described above, and the control device 29 not only automatically forms a pipeline according to each operation mode set by the key input device 33, but also supplies power when the device is installed. When water is turned on, a water-filled pipeline is automatically formed so that the water can be filled with the circulation pump 5 prior to operation, and when the operation of the device is stopped, water is drained so that water can be drained for maintenance. The three valves 15, 16, and 18 for bypass, backwash and drain are controlled to automatically form the pipe line.
[0052]
Thus, a bath water cleaning device is provided that can immediately start operation after filling the circulating pump 5 if the device is installed, and can immediately perform maintenance after draining the water if the operation is stopped.
[Brief description of the drawings]
[Fig. 1] Water-filled piping diagram,
[Fig.2] Drainage piping diagram,
FIG. 3 is a control block diagram;
[Fig. 4] Thermal sterilization piping diagram,
[Figure 5] Backwashing piping diagram,
[Fig.6] Piping diagram of the clean state
FIG. 7 is a conventional water-filled piping diagram.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bath 2 Hot water 3 Suction pipe 4 Apparatus body 5 Heater 6 Circulation pump 7 Ultraviolet sterilizer 8 Filtration tank 9 Fountain pipe 14 Recirculation bypass pipe 15 Bypass valve 16 Backwash valve 18 Drain valve 29 Controller 33 Power supply 34 Key input apparatus

Claims (2)

Hot water in the bathtub is pumped up from the hot water suction pipe by a circulation pump, and various cleaning equipment such as filtration tanks, UV sterilizers, heaters, etc. are connected by pipes and circulated in the main body of the equipment. In the bathtub hot water purifier, the finished hot water is ejected from the apparatus main body into the bathtub from the fountain pipe disposed in the bathtub.
One end is connected to a pipe line in the lower part of the filtration tank of the apparatus main body of the fountain pipe via a bypass valve, and the other end is connected to a pipe line between the hot water pipe and the circulation pump. The bath water is provided with a bypass pipe for recirculation, and when the power is turned on, the bypass valve is switched to the bypass pipe for recirculation, and the circulation pump is filled with water supplied from the opening above the filtration tank. Cleaning equipment. 2. The bathtub hot water purifier according to claim 1, wherein when the operation is stopped, the recirculation bypass pipe is automatically closed to form a water drain pipe from a cleaning processing apparatus such as a filtration tank .

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