JP3837177B2 - 24 hour bath water purification device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a 24-hour bathtub hot water purification apparatus that can maintain and raise the temperature of a bathtub hot water (bath water) by using hot hot bathtub water provided with a hot water storage tank and heated therein.
[0002]
[Prior art]
Conventional bathtub hot water purifiers keep the bath water warm and warm by an electric heater installed 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]
The present invention sterilizes and filters hot water with an input-side circulation pipe that pumps up bath water in a bathtub and an output-side circulation pipe that jets into the bathtub through a connection pipe, a sterilizer, and a filtration device. Bath hot water purifier that returns to the bathtub through the output-side circulation pipe, heating means for heating the heat storage medium stored in the tank, a tank provided with a heating pipe section heated by the heat storage medium, and the heating The other end of the input side heating pipe connected to one end of the pipe part is connected to the input side circulation pipe via a switching means, and one end of the output side heating pipe connected to the other end of the heating pipe part is the output The main body is connected to the side circulation pipe and the hot water inflow portion is formed in a T shape so that the hot water mixing rate is constant by connecting the hot water inflow portion to the input side. The bath water flowing in from the circulation pipe A bathtub that maintains a high temperature by a heat storage medium and sterilizes and filters the bath water by operating the switching means according to the temperature of the bath water detected by the temperature measuring means and circulating the bath water through the connecting pipe. The hot water purifying state, a part of the bath water is allowed to flow into the heating pipe part via the input side heating pipe, and the hot tub hot water of the heating pipe part is transferred from the output side heating pipe to the output side circulation pipe. Is connected and the hot water inflow portion is formed in a T shape, and the hot water inflow portion for mixing hot water is discharged to mix so that the mixing ratio of the circulating bath water and the heated bath water becomes constant. The problem can be solved by providing a 24-hour bathtub hot water purifying device characterized by comprising a control means for controlling the temperature of the bath water to flow out into the bathtub and increasing the temperature of the bath water. did it.
The present invention also sterilizes and filters hot water with an input-side circulation pipe that pumps bath water in the bathtub and an output-side circulation pipe that jets into the bathtub through a connection pipe, a sterilizer, and a filtration device. Bath hot water purifier that is returned to the bathtub through the output-side circulation pipe, a heating means for heating the heat storage medium stored in the tank, a tank provided with a heating pipe section heated by the heat storage medium, The other end of the input side heating pipe connected to one end of the heating pipe part is connected to the input side circulation pipe via a switching means, and one end of the output side heating pipe connected to the other end of the heating pipe part is It is connected to the hot water inflow portion of the hot water mixing ejector provided in the output side circulation piping, and the bath water flowing in from the input side circulation piping is held at a high temperature by the heat storage medium in the heating piping portion, and the temperature Measurement means detect The bath is purified by operating the switching means in response to the temperature of the bath water and circulating the bath water through the connecting pipe to sterilize and filter the bath water. The mixing ratio of the circulating bath water and the heating bath water is caused to flow into the heating piping portion through the heating piping and the heating bath water of the heating piping portion is discharged from the output side heating piping to the hot water mixing ejector. And a control means for controlling the temperature of the bath water to increase the temperature of the bath water by mixing it so that it becomes constant and flowing out into the bathtub, So we were able to solve the problem.
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 problem could be solved by using a 24-hour bathtub hot water purification device characterized by controlling the bath water temperature by operating the water supply valve.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the embodiment of the present invention will be described with reference to the drawings. In the present invention, a heating pipe section 40 is provided in the hot water storage tank 1 as shown in FIG. The heating pipe section 40 is formed in a coil shape, or is provided with a large number of fins on the outer periphery of the pipe so that heat exchange is possible. In particular, it is necessary to determine the length and thickness so that the temperature of hot water coming out of the heating pipe section 40 is the same as the temperature of hot water in the hot water storage tank 1. Generally, it is long and spirally stored in the hot water storage tank 1. Moreover, if the outer periphery of the heating pipe part 40 is formed in a bellows shape in order to increase the surface area, the pipe length can be shortened.
[0006]
The end of the input side heating pipe 2 communicated with the lower part of the heating pipe section 40 is connected to an intermediate position of the output side circulation pipe 16 as the main flow of the bath water purifier B. The connecting portion is referred to as a branch portion T. Moreover, the heat | fever which the end of the output side heating piping 3 connected to the upper part of the heating piping part 40 provided in the middle part 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.
[0007]
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 heating pipe 3. A solenoid valve 4 is provided in the middle of the input side heating pipe 2 connected to the hot water storage tank 1.
[0008]
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 heating 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.
[0009]
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.
[0010]
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.
[0011]
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.
[0012]
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.
[0013]
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.
[0014]
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.
[0015]
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 heated bathtub water flowing into the heating pipe section 40 in the hot water storage tank 1 flows out of the output side heating pipe 3 and flows from the throttle section 5c of the hot water mixing ejector A to the output side circulation pipe 16 of the bathtub water purifier B. The hot water in the bathtub 10 is heated by mixing with the mainstream bathtub water.
[0016]
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, The bath water is configured so that the bath water passes only through the main stream of the output side circulation pipe 16 from the bath water purifier B (see S2). That is, at the start of the circulation pump 11 in the bathtub hot water purification apparatus B, the hot 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.
[0017]
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 obtained by the venturi action of the hot water mixing ejector A. Flows into the hot water storage tank 1 side, the heated bathtub water heated in the heating pipe section 40 flows out of the output side heating pipe 3, and flows from the throttle section 5c of the hot water mixing ejector A to the output side circulation of the bathtub water purification device B. The hot water in the bathtub 10 is mixed with the main bath water of the pipe 16 to raise the temperature (see S5). While the bath water is warming up, 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.
[0018]
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.
[0019]
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.
[0020]
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.
[0021]
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.
[0022]
In FIG. 11, hot water is put into a hot water storage tank 1, a partition plate 33 is provided below, and a heat storage material 30 filled in a spherical case 31 is provided in the hot water storage tank 1 and on the partition plate 33. Many are filled. 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. Also in this case, the heating pipe section 40 is accommodated in the hot water storage tank 1.
[0023]
Moreover, as shown in FIG. 7, the input side heating piping 2 end may be connected to 14 connecting pipes of the bathtub hot water purification apparatus B including the circulation pump 11, the sterilization apparatus 12, and the filtration apparatus 13. On the ground or the like, a heating means 19 such as a sheathed heater may be provided as a constituent member of the bath water purifier B.
[0024]
【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%. Thus, 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 hot water coming out of the heating pipe part 40 in the hot water storage tank 1 is constant, If the flow rate flowing to the hot water storage tank 1 side is determined by the temperature of the hot water coming out of the heating pipe section 40 in the hot water storage tank 1 and the diameter of the throttle part 5c of the hot water mixing ejector A, the temperature of the hot water coming out of the hot water outlet 18 is determined. And the temperature difference between the bath and hot water. Even if the bath water purification device B is clogged or the like and the flow rate changes, the temperature difference between the hot water coming out of the hot water outlet 18 and the bath water does not change. That is, the temperature of the hot water coming out from the hot water outlet 18 does not change even when the flow rate decreases due to clogging of the filter medium or 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.
[0025]
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 the 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.
[0026]
【Example】
The heating pipe section 40 is spirally formed with a stainless steel pipe of 4.5 m (surface area 2000 cm ³ ) having a diameter of 10 mm and a thickness of 0.3 mm, and is stored in the hot water storage tank 1. When the bath water (35 ° C hot water) is flowed from the inlet of the pipe at 1.5 liters / minute, the temperature of the hot water in the hot water storage tank 1 is completely transferred to the hot water in the pipe, and 85 ° C hot water is supplied from the pipe outlet. Can be taken out as.
[0027]
【The invention's effect】
According to the first aspect of the present invention, there is an advantage that the running cost of the bath water purifier can be reduced and the temperature can be rapidly raised, and the temperature of hot water coming out from the hot water outlet 18 at the time of temperature rise can be supplied to the human body at a safe temperature. In particular, the hot water in the bathtub water can be indirectly heated by the hot water from the heating pipe section 40 built 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 and the hot tub hot water in the heating pipe section 40 are independent, and 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, a kitchen, and the like.
[0028]
In the invention of claim 2, when the temperature of the bath water is lowered, the solenoid valve 4 is opened and the hot bath water in the heating pipe section 40 built in the hot water storage tank 1 is automatically turned on via the hot water mixing ejector A. In particular, rapid temperature rise and heat retention can be achieved by mixing in the bath water at a predetermined ratio. Other effects are the same as those of the first aspect.
[0029]
In the invention of claim 3, the temperature can be rapidly raised and kept warm by automatically mixing the hot water mixing ejector A in the bath water at a predetermined ratio according to 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 put in a hot water storage tank.
A ... Hot water mixing ejector 1 ... Hot water storage tank 2 ... Input side heating pipe 3 ... Output side heating pipe 4 ... Solenoid valve 5 ... Main body part 5c ... Throttle part B ... Bath water purifier 11 ... Circulation pump 12 ... Sterilizer 13 ... Filtration device 10 ... Bathtub 40 ... Heating piping part

Claims (3)

The output side circulation is performed by sterilizing and filtering hot water with 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 ejected into the bathtub through a connecting pipe. Bath water purification apparatus that returns to the bathtub through the piping, a heating means for heating the heat storage medium stored in the tank, a tank provided with a heating pipe section heated by the heat storage medium, and one end of the heating pipe section The other end of the input side heating pipe connected to the input side circulation pipe is connected to the input side circulation pipe via a switching means, and one end of the output side heating pipe connected to the other end of the heating pipe portion is connected to the output side circulation pipe. Connected to the hot water inflow part for hot water mixing, in which the main body part is connected and the hot water inflow part is formed in a T shape, and flows in from the input side circulation pipe The heat storage medium in the heated piping section Bath hot water purification that maintains the temperature higher and operates the switching means in response to the temperature of the bath water detected by the temperature measuring means to circulate the bath water through the connecting pipe to sterilize and filter the bath water. The body part is connected to the output side circulation pipe from the output side heating pipe by flowing the state and a part of the bath water into the heating pipe part via the input side heating pipe. The hot water inflow portion is formed in a T-shape and flows out into the hot water inflow portion for hot water mixing, and is mixed so that the mixing ratio of the circulating bath water and hot bath water is constant. And a control means for controlling the temperature of the bath water to increase the temperature of the bath water, and a 24-hour bathtub hot water purifier. The output side circulation is performed by sterilizing and filtering hot water with 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 ejected into the bathtub through a connecting pipe. Bath water purification apparatus that is returned to the bathtub through the piping, heating means for heating the heat storage medium stored in the tank, a tank provided with a heating pipe section heated by the heat storage medium, and one end of the heating pipe section The other end of the input side heating pipe connected to the input side circulation pipe is connected to the input side circulation pipe via a switching means, and one end of the output side heating pipe connected to the other end of the heating pipe portion is connected to the output side circulation pipe. Connected to the hot water inflow portion of the provided hot water mixing ejector, the bath water flowing in from the input side circulation pipe is held at a high temperature by the heat storage medium in the heating pipe portion, and the temperature measuring means detects Bath water temperature Correspondingly, the switching means is operated to circulate bath water through the connecting pipe to sterilize and filter the bath water, and a bath water purification state in which the bath water is sterilized and filtered. So that the hot tub hot water in the heating pipe portion flows out from the output side heating pipe to the hot water mixing ejector, and the mixing ratio of the circulating bath water and the hot tub hot water becomes constant. And a control means for controlling the temperature of the bath water to be mixed and discharged to the bath to increase the temperature of the bath water. The control means according to claim 1 or 2, wherein the control means operates in response to detection of a temperature change 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.

Images