JPH03148563A - Circulation and filtration type hot water device - Google Patents

Abstract

PURPOSE:To reduce resistance to a hot water stream by allowing hot water to pass throughout the entire part of a filter comprising unit filter discs which are disposed on the hot water inflow side of the filter and made of fibers compressed coarsely, and unit filter discs which are disposed on the hot water outflow side and made of fibers compressed densely. CONSTITUTION:By allowing hot water supplied into a container 7 through a suction tube 3 to pass through unit filter mediums 21, dirt, such as hair, contained in the hot water is deposited on the filter mediums and removed by them. More particularly, large dirt contained in the hot water is removed by the unit filter mediums 21 provided at a lower part and made of fibers compressed coarsely. Small dirt is also removed by the unit filter mediums 21 provided at an upper part and made of fibers compressed densely.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is an improvement of a circulating filtration water heater that sucks hot water from a bathtub, filters the hot water, heats it, and supplies it again into the bathtub. Regarding.

(Prior art) In a normal circulating filtration water heater, hot water from the bathtub is sucked out by a suction pump, the dirty hot water is passed through a filter or a filter to remove dirt from the hot water, and hot water is supplied into the bathtub again. I have to. At this time, a heater is inserted inside the filter medium or the container containing the filter, and by heating the circulating hot water, the bathtub is always supplied with hot water at a temperature suitable for bathing. It is possible.

(Problems to be Solved by the Invention) - The problem with such circulating filtration water heaters is how to cleanly remove dirt from the hot water, and research and development for this purpose is progressing. Usually, a spool filter is used to remove hair and relatively large debris contained in hot water. This thread-wound filter is made by winding a large number of threads around a cylindrical member that allows water to pass through.

FIG. 3 is a sectional view showing such a thread-wound filter. In this figure, 31 is a cylindrical filter container, and a disk-shaped partition wall 32 is provided inside the container. At the center of the partition wall 32 is a cylindrical inner tube 33.
The upper part of this tube 33 passes through the partition wall 32 and a part thereof protrudes above the partition wall 32.

Further, this inner tube 33 has a large number of minute holes 34 bored therein.

A thin thread 35 is wound around the outside of the inner tube 33 many times. A hot water supply pipe 36 is attached to the lower part of the container 31.

In such a thread-wound filter, dirty hot water is supplied into the container 31 from the hot water supply pipe 36.

The hot water supplied to the inside of the container 31 passes through the gaps between the threads 35, so that the dirt contained therein adheres to the threads 35 and is removed, and then passes through the micro holes 34 made in the inner tube 32. and enters the inside of the inner tube 33. The hot water introduced into the inner pipe 33 is introduced from the upper part of the partition wall 32 to a filter stone section (not shown).

In such a configuration, even if hot water is supplied into the container 31 with a relatively large cross section outside the inner pipe 33, the hot water that has passed through the filter must pass inside the inner pipe 33 with a relatively small cross section. , the resistance to the flow of hot water becomes very large, and the capacity of the pump that circulates the hot water must be increased. Additionally, this filter has many drawbacks, such as large and small dirt that gets stuck between the threads in a short period of time, extremely impairing its ability to pass through water, and requiring frequent cleaning of the filter. -Furthermore, it is very difficult and tedious to remove large and small dirt adhering to this thread. Of course, if dirt adheres between the threads, the flow of water will become even worse, and the load on the bomb will be extremely large, which may cause damage to the pump.

The present invention has been made in view of these points, and its purpose is to provide a circulating filtration water heater that has extremely low water flow resistance, is equipped with a filter section that has a large filter effect, and is easy to clean. It is about realization.

(Means for Solving the Problems) A circulating filtration water heater based on the present invention includes a pump means for sucking hot water from a bathtub, and a filtration section consisting of a filter section and a filter stone section for filtering dirt from the hot water, In the circulating filtration water heater configured so that hot water that has passed through the filtration part is supplied to the bathtub again, the filter part is constructed by laminating a plurality of unit filter plates made of disk-shaped fibers,
The fibers of the unit filter plates disposed on the hot water inflow side of the filter section are loosely compacted, and the fibers of the unit filter plates on the hot water outflow side are densely compacted.

(Function) The filter section is constructed by laminating a plurality of unit filter plates made of disk-shaped fibers, and the fibers of the unit filter plates arranged on the hot water inflow side of the filter section are loosely compacted to prevent hot water from flowing out. The fibers of the side unit filter plate are compacted tightly.

In the filter section, hot water flows over the entire surface of the filter section, and the resistance to the flow of hot water is extremely small. In addition, among the garbage 6 contained in the supplied hot water, large garbage is captured by the unit filter plate in which the fibers on the hot water inflow side are loosely compacted, and small garbage is captured by the unit filter plate in which the fibers on the hot water outflow side are compacted densely. captured by the unit filter.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings. The accompanying drawing shows a circulating filtration water heater according to the invention. Reference numeral 1 denotes a bathtub made of a suitable material, and hot water 2 is placed inside.

3 is a suction pipe connected to a suction pump 4.

The suction pipe 3 is connected to a container 7 in which a filter material 5 and a filtration section 6 are placed. Details of the filter material 5 will be described in detail later using FIG. 2.

This container 7 is made of vinyl chloride resin.

The container 7 is connected by a pipe 8 to the upper part of a cylindrical body 9 made of vinyl chloride resin.

Inside the cylinder 9, a germicidal lamp 10, a heater 11, a flow detector 12, and a temperature detector 13 are provided. Cylindrical body 9
The lower part of the bathtub 1 is connected to a tube 14, and the end of the tube 14 is inserted into the bathtub 1. flow detector 12
and the output signal of the temperature sensor 13 are supplied to the controller 15. The controller 15 is a power source 1 for the heater 11.
6. Power supply 17 for germicidal lamp 10 and power supply 1 for inhalation bomb 4
8.

The operation of the above-described configuration is as follows. Water is poured into the bathtub 1, and then the suction bomb 4 is operated. bathtub 1
The water inside passes through the suction pipe 3 and is introduced into the container 7. The water that has passed through the container 7 is introduced into the cylindrical body 9 through a pipe 8 and then returned into the bathtub 1 through a pipe 14. Here, heating current is supplied to the heater 11 from a power source 16 controlled by a controller 15. As a result, heater 1
1 is heated, and the cylindrical body 9 is heated by this heated heater.
The water passing through the bathtub 1 is heated and turned into hot water and guided into the bathtub 1.

The temperature of the hot water passing through the cylindrical body 9 is detected by a temperature detector 13. A detection signal from the temperature detector 13 is supplied to a controller 15.

The controller 15 compares the detected temperature of hot water with a predetermined reference temperature, and when the detected temperature is lower than the reference temperature, the heater 11 is supplied from the heater power source 16.
The temperature of the hot water passing through the cylindrical body 9 is increased by increasing the current supplied to the heater and increasing the heating temperature of the heater.

Conversely, when the detected temperature is high, the controller 15
The power source 16 is controlled to lower the heating current of the heater 11, thereby lowering the heating temperature by the heater 11. Note that the reference temperature set in the controller 15 is determined according to the temperature of the hot water in the bath WJl, and is set to, for example, a temperature such that the temperature of the hot water in the bathtub becomes 42° C., which is suitable for bathing.

As mentioned above, the hot water in the bathtub 1 is circulated by the suction bomb 4, but when it passes through the container 7, the filter material 5 removes relatively large dirt such as hair mixed into the hot water in the bathtub. be removed. Also, hot water is
By passing between the filter stones 6 in the container 7, ammonia, chlorine, etc. in the hot water are absorbed, and - the filter stones 6 remove minute dirt that could not be removed by the filter material. filtered. Further, the hot water that has passed through the container 7 is introduced into the cylindrical body 9, and bacteria in the hot water are sterilized by a germicidal lamp 10 provided in the cylindrical body 9. The sterilizing lamp power source 17 is controlled by the controller 15, and by this control, the sterilizing lamp is lit continuously or intermittently for about two hours a day.

In this way, dirt is removed and sterilized hot water is supplied into the bathtub 1, allowing the bather to take a clean, appropriate temperature bath at any time during the day. can. Here, since the container 7 with a large surface area is made of vinyl chloride resin, the heat retention of the container 7 is extremely excellent, and since the circulating hot water is not cooled significantly within the container 7, the heater 11 The energy required for heating can be reduced, and an extremely energy-saving circulating filtration water heater can be provided. Furthermore, in this example,
Since the cylindrical body 9 is also made of vinyl chloride resin, the heat retention of the circulating hot water can be further increased. Furthermore, if the flow of hot water were to stop due to a similar problem and the heater 11 was turned on at that time, the cylindrical body made of resin could be heated to high temperatures and melt. It will be done. Therefore, in this embodiment, a flow detector 12 is provided inside the cylinder 9, and if the flow of hot water stops, a controller 15
controls the heater power supply 16 to stop the supply of heating current from the power supply 11i16 to the heater 11.

Now, FIG. 2 shows details of the filter material 5.

The filter material 5 includes a large number of unit filter materials 21a to 2
It is composed of 1n. Each unit filter material is formed into a thin disk shape, and each unit is formed by hardening chemical fibers.

The diameter of each unit filter material is approximately 25an, and the thickness is 1
It is about 2 an. Furthermore, among the unit filter materials 21, the fibers of the unit filter materials 21a and the like disposed at the lower part of the container 7 on the side closer to the suction pipe 3 are loosely compacted, and conversely, the fibers are loosely consolidated and are closer to the filter stone part of the container 71 part. The unit filter material 21n arranged on the side is made of densely packed fibers.

It is preferable that the arrangement is such that the lowermost one 21a is the sparsest and the uppermost one 21n is the densest. Note that in this figure, each unit filter material is shown separated for convenience of explanation, but in reality, each filter material is overlapped.

In such a configuration, the hot water supplied from the suction pipe 3 into the container 7 passes through the unit filter material.
The hair and other debris contained therein adheres to the filter material and is removed. That is, large particles contained in the hot water are removed by the unit filter material in which the fibers are loosely compacted at the bottom, and small particles are removed by the unit filter material in the upper section where the fibers are densely compacted.

In this manner, in this embodiment, the hot water flows over the entire interior of the container 7, so the flow of the hot water is very smooth, and the suction pump 4 can be made smaller.

In addition, large debris is removed by a unit filter material close to the hot water supply section, and small debris is removed by a subsequent unit filter material, so compared to a method that removes large and small debris with a single filter material, the filter Clogging of the material can be significantly reduced.

Furthermore, when cleaning the filter material, by washing each unit of filter material with water, it is possible to easily remove large and small particles adhering to the filter material.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment. For example, although the container 7 is formed into a cylindrical shape, the cross section of the container may be rectangular. Moreover, although the dirty hot water is allowed to flow from the bottom to the top of the container, it may be made to flow from the top to the bottom.

(Effects of the Invention) As explained above, in the present invention, the filter section is configured by laminating a plurality of unit filter plates made of disk-shaped fibers, and the unit is arranged on the hot water inflow side of the filter section. The fibers of the filter plate are loosely compacted, and the fibers of the unit filter plate on the hot water outflow side are compacted densely.
In the filter section, hot water can flow over the entire surface of the filter section, and the resistance to the flow of hot water can be made extremely small. Therefore, the pump for circulating hot water can be made small, and the device can be manufactured in a small size and at low cost. Also, among the garbage contained in the supplied hot water, large garbage is captured by the unit filter plate, where the fibers on the hot water inflow side are loosely compacted, and small garbage are captured by the unit filter plate, where the fibers on the hot water outflow side are densely compacted. Since the particles are captured by a solid unit filter plate, the clogging of the filter material can be significantly reduced compared to the case where large and small particles are captured by a single filter material. Furthermore, since cleaning of the filter material can be carried out by separating the thin filter materials, it is possible to easily remove dust attached to the filter materials.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the entire system of a circulating filtration water heater which is an embodiment of the present invention, Fig. 2 is a diagram showing details of the filter material, and Fig. 3 is a diagram showing a conventional thread-wound filter. It is. - 1-・One bathtub 2・・・Hot water 3・・Suction pipe 4・・Suction pump 5・・Filter material 6・・・・Filter stone 7・・・Container 8
...One tube 9...Cylinder body 10...Bactericidal lamp 1
1... Heater 12... Flow detector 13
... Temperature detector 14 ... One tube 15 ... Controller 16 ... Heater power supply 17 ... Germicidal lamp power supply 18 ... Pump power supply 21 ... Unit filter material 31 ... Container 32 ...・Bulkhead 33...
Inner tube 34-microhole 35... one system

Claims (1)

[Claims] A circulation system comprising a pump means for sucking hot water from a bathtub, and a filtration section consisting of a filter section and a filter stone section for filtering dirt from the hot water, and configured so that the hot water that has passed through the filtration section is supplied to the bathtub again. In the filtration water heater, the filter section is configured by laminating a plurality of unit filter plates in which fibers are compacted into a disk shape, and the fibers of the unit filter plates disposed on the hot water inflow side of the filter section are loosely compacted. , a circulating filtration water heater characterized in that the fibers of the unit filter plate on the hot water outflow side are tightly compacted.