JP3729897B2 - 24 hour bath water purification device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a 24-hour bathtub hot water purifier that can maintain and raise the temperature of hot water (hot water) using hot water (hot water) stored in the hot water storage tank.
[0002]
[Prior art]
Conventional bath water purifiers keep the bath water warm and warm by an electric heater provided in the pipe.
[0003]
[Problems to be solved by the invention]
However, the electric heater using electric power has a drawback that it takes an electricity bill and has a low heating rate due to a small unit calorific value.
[0004]
[Means for Solving the Problems]
For this reason, the present invention sterilizes bath water using a circulation pump, a sterilization device, and a filtration device that are connected to an input-side circulation pipe that pumps up bath water in the bathtub and an output-side circulation pipe that jets into the bathtub through a connection pipe. And a bathtub hot water purifier that is filtered and returned to the bathtub through the output side circulation pipe, a heating means for heating the bath water stored in the tank, and an input side hot water storage pipe connected to the lower end side of the tank The other end of the tank is connected to the input-side circulation pipe via a switching unit, and one end of the output-side storage hot water pipe connected to the upper end side of the tank is connected to the output-side circulation pipe. The hot water inflow part is connected to the hot water inflow part for hot water mixing formed in a T shape, and the bath water flowing in from the input side circulation pipe is kept at a high temperature in the tank, The switching corresponding to the temperature of the bath water detected by the measuring means Bath water purification state in which bath water is circulated through the connecting pipe by operating the stage to sterilize and filter the bath water, and a part of the bath water flows into the tank through the input side hot water storage pipe A hot water inflow portion for mixing hot water, in which a main body portion is connected from the output side hot water piping to the output side circulation piping, and a hot water inflow portion is formed in a T shape in the main body portion. And a control means for controlling to a state in which the mixing ratio of the circulating bath water and hot water is mixed so as to be constant and the temperature of the bath water is increased by increasing the temperature of the bath water. By using a hot water bath purifier, hot water can be stored using low-power electricity at low electricity costs, and the bath water can be kept warm and heated by the stored hot water. It is.
Further, in the present invention, the bath water is sterilized by the circulation pump, the sterilization device, and the filtration device connected to the input side circulation piping for pumping up the bath water in the bathtub and the output side circulation piping ejected into the bathtub through the connection pipe. A bath hot water purifier which is filtered and returned to the bathtub through the output side circulation pipe, a heating means for heating the bath water stored in the tank, and an input side hot water storage pipe connected to the lower end side of the tank The other end is connected to the input-side circulation pipe via a switching means, and one end of the output-side storage hot water pipe connected to the upper end side of the tank is connected to the hot-water mixing ejector provided in the output-side circulation pipe. Connected to the hot water inflow section, the bath water flowing in from the input side circulation pipe is kept at a high temperature in the tank, and the switching means is operated in accordance with the temperature of the bath water detected by the temperature measuring means. Circulate bath water through the connecting pipe Bath water purification state in which the bath water is sterilized and filtered, and a part of the bath water flows into the tank via the input-side storage hot water piping, and hot hot water is supplied from the output-side storage hot water piping to the heat. Control means for controlling to a state in which the temperature of the bath water is increased by flowing out to the water mixing ejector and mixing so that the mixing ratio of the circulating bath water and hot water is constant and flowing out to the bath The above-mentioned problems are solved by using a 24-hour bathtub hot water purifier.
Moreover, this invention solved the said subject by setting it as the 24-hour bathtub hot water purification apparatus which accommodated multiple heat storage materials in the said tank.
Further, according to the present invention, the control means is provided in a pipe line that operates in response to detection of a temperature change of the bath water when the temperature measuring means exceeds a predetermined temperature, and supplies water from an external water source to the bathtub. The above-mentioned problem is solved by providing a 24-hour bathtub hot water purifier that operates to operate the water supply valve to lower the bath water temperature.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the end of the input side hot water storage pipe 2 provided at the lower portion of the hot water storage tank 1 is connected to the bathtub hot water purifier B. It is connected to an intermediate position of the output side circulation pipe 16 as the main stream. The connecting portion is referred to as a branch portion T. Moreover, the heat | fever which the edge of the output side heat storage piping 3 provided in the upper location of the hot water storage tank 1 provided in the middle of the bathtub side rather than the said branch part T of the output side circulation piping 16 as the mainstream of the bathtub hot water purification apparatus B is provided. It is connected to the water mixing ejector A.
[0006]
In the hot water mixing ejector A, the hot water inflow portion 6 is formed in a T shape in the main body portion 5. The main body 5 is formed with a throttle portion 5c in which the pipe diameter is narrowed at six locations of the hot water inflow portion of the tubular body, and the inflow side portion 5a of the tubular body is gradually narrowed from the maximum inner diameter, and the diameter of the narrowed portion 5c is increased. And the outflow side portion 5b of the tubular body is formed so as to gradually expand from the diameter of the throttle portion 5c and to have a maximum inner diameter. The inflow side part 5a and the outflow side part 5b of the main body part 5 of the ejector A for hot water mixing are respectively connected to cut portions in the middle of the output side circulation pipe 16, and the bath water is always in the inflow side of the main body part 5. It is provided so as to circulate from the part 5a to the outflow side part 5b. Further, the tip of the hot water inflow portion 6 is connected to the outlet end of the output side hot water storage pipe 3. An electromagnetic valve 4 is provided in the middle of the input side hot water storage pipe 2 connected to the hot water storage tank 1.
[0007]
As the hot water storage tank 1, an electric water heater using water as a heat storage medium is used. That is, the hot water storage tank 1 is composed of a tank 1a and a heater 1b using electric power provided in the tank 1a, and water is supplied from a water source such as a water supply from the lower side of the tank 1a and from the upper side. Hot water is supplied from the output side hot water storage pipe 3. As the principle of such an electric water heater, there are a convection method (natural convection, forced convection), a heat exchanger method, etc. Even if water enters the hot water, the upper side from the mixed layer (separation layer) is hot water. Can be used as a water heater. A temperature detector 1c is also provided and is controlled at a desired set temperature.
[0008]
When the late-night power is used for the hot water storage tank 1 (water heater), the power usage fee can be made relatively inexpensive. The late-night power includes midnight power A, B (electric power used for hot water from 11:00 pm to 7:00 am the next day), and second midnight power (for hot water from 1 am to 6:00 am) Etc.), and the discounted charges vary depending on each electric power company. As described above, the hot water in the hot water storage tank 1 is generally heated to 85-90 ° C. by the heater 1b using electric power at midnight. The hot water storage tank 1 is coated with a heat insulating material 1d such as glass wool on the outer periphery of the tank 1a in order to avoid the temperature drop during the daytime as much as possible, thereby improving the heat insulating property.
[0009]
As shown in FIG. 1, the bath water purifier B has a circulation pump 11 for circulating bath water, a sterilizer 12 for sterilizing bath water, and a filtration for filtering fine dust and dirt impurities from the bath water. The apparatus 13 is comprised. The circulation pump 11, the sterilizing device 12, and the filtering device 13 are configured such that bath water communicates with each other via a connecting pipe 14 in series. In the embodiment, the circulation pump 11, the sterilizer 12, and the filtration device 13 are in this order, but the order is not necessarily limited.
[0010]
The sterilizer 12 includes an ozone generator, ozone water injection means, ultraviolet sterilization means, and the like. The ozone generator includes an ozonizer section and an ozone mixing section that mixes ozone. The ozone water injection means is composed of an ozone water generating part and a tank part for injecting and storing ozone water in the sterilization pipeline. The ultraviolet sterilization means is configured such that an ultraviolet lamp is provided inside the case, and bath water passes through while being irradiated with the ultraviolet lamp.
[0011]
The type of filter used in the filtering device 13 is a precision filter or a normal filter, which is used as an adsorbent filter material filter material filled with activated stone or activated carbon, or made of woven or non-woven fabric. Some consist of: In any case, fine dust and dirt as impurities are removed.
[0012]
As described above, the input-side circulation pipe 15 that flows in the bath water from the bathtub 10 is connected to the input side of the bath water purifier B, and the bath 10 is bathed in the bathtub 10 on the output side of the bath water purifier B. The output-side circulation pipe 16 is provided so that water flows out. The suction side (input side) of the input side circulation pipe 15 is provided with a hot water inlet 17 provided with a prefilter capable of removing relatively coarse dust and the like. A hot water outlet 18 equipped with a device as required is provided.
[0013]
A temperature measuring means 21 (temperature sensor) connected to the central processing unit 20 is provided in the middle of the input side circulation pipe 15 as the bathtub hot water purification device B, and bath water in the bathtub hot water purification device B is provided. The solenoid valve 4 is appropriately switched by the operation of the valve control means 22 in accordance with the temperature, so that a predetermined temperature control is possible. The set temperature storage means 23 stores a desired temperature in advance. This set temperature is configured as a RAM so that it can be appropriately changed. The central processing unit 20 is also provided with a temperature comparison means 24 for comparing the measured temperature with the set temperature. Further, a water supply valve 25 from another water source is also provided so as to be controllable by the valve control means 22 in order to lower the temperature of the bath water.
[0014]
Within an appropriate desired set temperature range (about 40 to 42 ° C.), the solenoid valve 4 is closed, and the bath water is configured to pass through the bath water purifier B and the output-side circulation pipe 16. When the temperature measuring means 21 in the bathtub hot water purifier B detects that the temperature of the hot water has dropped, the valve control means 22 issues a signal for opening the electromagnetic valve 4, and the electromagnetic valve 4 is opened. Then, since the throttle portion 5c of the hot water mixing ejector A is smaller than the inner diameter of the other output-side circulation pipe 16, the flow velocity is high, and the pressure is higher than that of the branch portion T in the middle of the output-side circulation pipe 16. A part of the bath water (tub hot water) circulating through the output side circulation pipe 16 flows to the hot water storage tank 1 side. In FIG. 4 of the Bernoulli theorem and the Venturi tube principle, this is a configuration in which a negative pressure having a virtual height difference h is generated at six hot water inflow portions. The amount of hot water in the hot water storage tank 1 into which the bath water has flowed out flows out of the output side hot water storage pipe 3 and flows through the constricted portion 5c of the hot water mixing ejector A to the main flow of the output side circulation pipe 16 of the bath water purifier B. The temperature of the hot water in the bathtub 10 is increased by mixing with the bath water.
[0015]
Next, a description will be given with reference to the flowchart shown in FIG. First, the operation of the apparatus of the present invention is started. Then, it is measured by the temperature measuring means 21 to determine whether or not it is within the set temperature range (see S1). If it is within the set temperature range, the valve control means 22 closes the solenoid valve 4, It is comprised so that bath water may pass only the main stream of the output side circulation piping 16 from the bathtub hot water purification apparatus B (refer S2). That is, at the start of the circulation pump 11 in the bathtub hot water purification apparatus B, bath water circulates through the bathtub 10, the input side circulation pipe 15, the bathtub hot water purification apparatus B, and the output side circulation pipe 16 to perform sterilization and the like. In such a circulating state, the process returns to the position before step S1. Further, the temperature is measured by the temperature measuring means 21 to determine whether the temperature is lower than the set temperature (see S3). If the temperature is higher than the set temperature range, the valve control means 22 controls the valve. Then, the water supply valve 25 is opened to lower the bath water temperature (see S4). With this lowered, the process returns to the position before step S1.
[0016]
Further, when the temperature is lower than the set temperature range, the valve control means 22 controls the valve, the electromagnetic valve 4 is opened, and a part of the bath water is generated by the venturi action of the hot water mixing ejector A. Flows into the hot water storage tank 1 side, and hot water in the hot water storage tank 1 flows in from the output side hot water storage pipe 3 through the amount of bath water flowing into the hot water mixing ejector A from the restricting portion 5c of the hot water mixing device B. The hot water in the bathtub 10 is mixed with the main-stream bath water in the output-side circulation pipe 16 (see S5). While the temperature of the bath water is rising, the process returns to S1 and repeats. In this way, when the desired set temperature is reached, it is the same as described above, and the set temperature of the bath water is always maintained.
[0017]
As described above, in the embodiment of the present invention, the hot water in the hot water storage tank 1 is heated by midnight power, thereby reducing the electricity bill, enabling rapid temperature rise of the bath water that is impossible with the electric heater, and heat. There is no need for the water mixing section to have a complicated structure such as a mixing plug, and since it is very simple, there are few failures, and there is no danger of hot water coming out from the tap 18 and it is safe. Hot water is a shower that can be used.
[0018]
As another embodiment of the hot water storage tank 1, the heat storage material 30 may be inserted into water. The material of the heat storage material 30 having a latent heat of fusion at 50 to 90 ° C. includes inorganic and organic materials, and examples of the inorganic heat storage material include NaCH ₃ COO · 3H ₂ O, NaOH · 10H ₂ O, and Al (NO ₃ ) ₂ · 9H ₂ O, Ba (OH) ₂ · 8H ₂ O, Mg (NO ₃ ) ₂ · 6H ₂ O, KAl (SO ₄ ) ₂ · 12H ₂ O, NH ₄ Al (SO ₄ ) ₂ · 12H ₂ Examples of the organic heat storage material include polyethylene glycol (having a molecular weight of about 5000 to 9000), fatty acids such as palmitic acid and stearic acid, and the like.
[0019]
The heat storage material 30 is filled in a spherical case 31 (see FIG. 10A). As the material of the case 31, high-density polyethylene or polypropylene is preferable in view of durability, workability, cost, and the like. An appropriate size of the case 31 is about 10 mm to about 100 mm in diameter. In addition, the case 31 may be formed in a plate shape or a cylindrical shape, and is not limited to the embodiment.
[0020]
Further, the heat storage material 30 may be filled in a sealed bag body 32 as shown in FIG. If the hot water storage tank 1 has the same volume, it is possible to store more energy by using the heat storage material 30 in combination than water alone.
[0021]
11, the hot water is put into the hot water storage tank 1, a partition plate 33 is provided below, and the heat storage material 30 filled in the spherical case 31 in the hot water storage tank 1 and on the partition plate 33 is also shown. Is filled with a large number. Rather than directly heating the heat storage material 30, the method of heating the heat storage material 30 contained in the case 31 evenly and slowly from the periphery of the case 31 is preferable from the viewpoint of durability and efficiency of the heat storage material 30.
[0022]
Moreover, as shown in FIG. 7, the input-side hot water storage piping 2 end may be connected to 14 connecting pipes of the bathtub hot water purification device B including the circulation pump 11, the sterilization device 12, and the filtration device 13. In a cold district or the like, a heating means 19 such as a sheathed heater may be provided as a constituent member of the bath water purification device B.
[0023]
【Example】
The graph shown in FIG. 8 shows the relationship between the total flow rate and the hot water flow rate. In other words, the horizontal axis indicates the total flow rate (bath water amount + hot water flow rate) in liters per minute, and the vertical axis indicates the flow rate of hot water flowing in from the throttle portion 5c of the hot water mixing ejector A in liters per minute. It is shown. When the hot water flow rate through the throttle portion 5c of the hot water mixing ejector A increases, the total flow rate also increases. As a result, the ratio of the hot water flow rate to the total flow rate (this rate is also referred to as “hot water mixing rate”). ) Is about 8.5 to about 9%. In this way, since the ratio of the hot water flow rate to the main flow rate of the output side circulation pipe 16 of the bathtub hot water purification apparatus B is always constant, if the temperature of the hot water stored in the hot water storage tank 1 is constant, the bathtub hot water purification is performed. Even if the apparatus B is clogged or the like and the flow rate is changed, the temperature difference between the hot water coming out from the hot water outlet 18 and the bath water is not changed. In other words, the temperature of the hot water coming out from the hot water outlet 18 does not change even when the flow rate is reduced due to clogging of the filter medium, or even when the hot water inlet 17 and the hot water outlet 18 are blocked by mischief and the flow rate suddenly drops. Further, when the flow rate of the circulation pump 11 of the bathtub hot water purification apparatus B can be changed, if the hot water is circulated at a high speed, the hot water temperature at the hot water outlet 18 will not change, but the temperature rise rate will increase.
[0024]
FIG. 9 shows a graph of the relationship between the mixing ratio and the outlet temperature. In the apparatus of the present invention, the hot water flow rate of 85 ° C. in the hot water storage tank 1 is set at the hot water mixing ejector A location. The temperature which comes out from the tap 18 at the time of mixing in the ratio of 5, 10, 15, 20, 25, 30% with respect to the flow rate (bath water amount + hot water flow rate) is shown. For example, when bath water is bathing at 42 ° C., it is heated (when the installation temperature is 43 ° C. or higher and the device judges that the temperature of the bath water is low and the solenoid valve 4 is opened and hot water is mixed). The temperature of hot water coming out from the gate 18 is about 44 ° C. when the hot water mixing ratio is 5%, and about 55 ° C. when 30%. When the temperature of the hot water coming out from the hot water outlet 18 exceeds 50 ° C., it feels very hot. Therefore, it is preferable to design the hot water mixing rate to be 15% or less. Considering that hot water is spouted from the hot water outlet 18 and hits the human body, it is important not to get too hot.
[0025]
【The invention's effect】
According to the first aspect of the present invention, there is an advantage that the running cost of the bathtub hot water purifier can be reduced and the temperature can be rapidly raised, and the temperature of the hot water coming out of the hot water outlet can be supplied to the human body at a safe temperature. In particular, the hot water in the bathtub can be indirectly heated by the hot water stored in the hot water storage tank 1, and the safety factor for the human body can be increased. Furthermore, the hot water in the hot water storage tank 1 can be used in the same manner as an electric water heater, and can be used for a shower or the like.
[0026]
In the invention of claim 2, when the temperature of the bath water is lowered, the solenoid valve 4 is opened and the hot water mixing ejector A is automatically mixed into the bath water at a predetermined ratio by opening the solenoid valve 4. Therefore, rapid temperature rise and heat retention can be achieved. Other effects are the same as those of the first aspect.
[0027]
In the invention of claim 3, rapid temperature rise and heat retention can be achieved by automatically mixing the hot water mixing ejector A in the bath water at a predetermined ratio by the venturi tube principle. Other effects are the same as those of the second aspect.
[Brief description of the drawings]
FIG. 1 is a schematic view of the present invention. FIG. 2 is a perspective view of a main member of the present invention. FIG. 3 is a sectional view of an ejector portion for mixing hot water. 5 is a block diagram of the present invention. FIG. 6 is a flowchart of the present invention. FIG. 7 is a schematic diagram of another embodiment of the present invention. FIG. 8 is a graph showing the relationship between the total flow rate and the hot water flow rate. Fig. 10 (A) is a partially cut perspective view of a spherical case filled with a heat storage material. (B) is a partial cut of a bag filled with a heat storage material. Fig. 11 is a cross-sectional view of an embodiment in which a large number of heat storage materials are placed in a hot water storage tank.
A ... Hot water mixing ejector 1 ... Hot water storage tank 2 ... Input side hot water storage piping 3 ... Output side hot water storage piping 4 ... Solenoid valve 5 ... Main body 5c ... Throttle part B ... Bath water purification apparatus 10 ... Bath 11 ... Circulation pump 12 ... Sterilizer 13 ... Filtration device

Claims (4)

The output side of the bath water is sterilized and filtered by a circulation pump, a sterilization device and a filtration device connected to an input side circulation piping for pumping bath water in the bathtub and an output side circulation piping for jetting into the bathtub through a connecting pipe. A bath hot water purifier that is returned to the bathtub through the circulation pipe, and a heating means for heating the bath water stored in the tank,
The other end of the input side hot water storage pipe connected to the lower end side of the tank is connected to the input side circulation pipe via a switching means, and one end of the output side hot water storage pipe connected to the upper end side of the tank is connected to the end of the tank. The main body is connected to the output side circulation pipe, and the hot water inflow part is connected to the hot water inflow part for mixing hot water formed in a T shape in the main body part, and the bath flows from the input side circulation pipe. The water is kept at a high temperature in the tank, and the switching means is operated according to the temperature of the bath water detected by the temperature measuring means to circulate the bath water through the connecting pipe to sterilize the bath water. The main body portion of the bathtub hot water purifying state to be filtered and a part of the bath water is allowed to flow into the tank via the input side hot water piping, and hot hot water is supplied from the output side hot water piping to the output side circulation piping. heat of the hot water for mixing the connected heat water inflow to the body portion is formed in a T-shape Drained to the inlet portion, and a state where the mixing ratio of the bath water and hot water circulating raises the temperature of the bath water was drained to the bath and mixed so as to be constant,
A 24-hour bathtub hot water purifier, comprising: a control means for controlling the hot water. The output side of the bath water is sterilized and filtered by a circulation pump, a sterilization device and a filtration device connected to an input side circulation piping for pumping bath water in the bathtub and an output side circulation piping for jetting into the bathtub through a connecting pipe. A bath hot water purifier that is returned to the bathtub through the circulation pipe, and a heating means for heating the bath water stored in the tank,
The other end of the input side hot water storage pipe connected to the lower end side of the tank is connected to the input side circulation pipe via a switching means, and one end of the output side hot water storage pipe connected to the upper end side of the tank is connected to the end of the tank. Connected to the hot water inflow section of the hot water mixing ejector provided in the output side circulation pipe, the bath water flowing in from the input side circulation pipe is kept at a high temperature in the tank, and the temperature measuring means detects it. In response to the temperature of the bath water, the switching means is operated to circulate the bath water through the connecting pipe to sterilize and filter the bath water. The hot water of high temperature is caused to flow into the tank through the hot water storage pipe and the hot water is discharged from the output side hot water piping to the hot water mixing ejector so that the mixing ratio of the circulating bath water and hot water becomes constant. And the temperature of the bath water is raised by flowing into the bathtub
A 24-hour bathtub hot water purifier, comprising: a control means for controlling the hot water.   3. The 24-hour bathtub hot water purifier according to claim 1 or 2, wherein a plurality of heat storage materials are stored in the tank.   The control means according to claim 1 or 2, wherein the control means operates in response to detection of a change in temperature of the bath water when the temperature measuring means exceeds a predetermined temperature, and is connected to a pipe for supplying water from an external water source to the bathtub. A 24-hour bathtub hot water purification apparatus, wherein the water supply valve provided is controlled to lower the bath water temperature.

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