JP2021094060A - Warm bath unit - Google Patents

Abstract

To provide a compact and space-saving warm bath unit equipped with a filter device in a lower part of a bathtub, whose maintenance is easy.SOLUTION: Since a warm bath unit 100 is equipped with a filter device 80 at a bottom of a bathtub 10, it is not necessary to provide a large-sized filter such as a sand filter or a machine room for installing the filter. Also, since a pipeline for connecting the bathtub 10 to the filter device is not necessary, it is possible to achieve space-saving, reduction in construction work, shortening of construction time, reduction in facility cost and construction cost, etc. Furthermore, by arranging pump means 12 and heating means 16 close to the bathtub 10, the warm bath unit 100 can be unitized. Also, maintenance of the filter device 80 is completed by replacing a filter material mat 30, the maintenance can be executed easily in extremely short time. The filter material mat 30 taken out for replacement can recover its filtration ability by being washed by an ordinary washing machine, its maintenance can be done extremely easily and inexpensively.SELECTED DRAWING: Figure 1

Description

The present invention relates to a hot bath facility provided with a filtration device at the bottom of the bathtub.

In large baths such as hot bath facilities and accommodation facilities, there are hot bath facilities that filter, circulate, and reuse the hot water stored in the bathtub. As a filtration device for such a hot bath facility, for example, as in the invention described in the following [Patent Document 1], a sand filter for filtering by passing hot water through a container filled with filtered sand is generally used. It is used.

Japanese Unexamined Patent Publication No. 2005-193214

However, the filtration device using this sand filter has a large scale, and in many cases, a large machine room is provided in a place away from the bathtub, and the filtration device is installed in this machine room. For this reason, there is a problem that equipment cost and installation space are required, the distance of the circulation pipe from the bathtub to the filtration device becomes long, and bacteria such as Legionella spp. Are likely to grow in the pipe. Further, there is a problem that the sand filter itself tends to be a hotbed for bacteria such as Legionella spp. Further, in the sand filter, installation of a hair catcher and daily cleaning may be obligatory by ordinances, etc., which causes a problem that the burden on the manager is heavy.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a space-saving, compact and easy-to-maintain hot bath facility provided with a filtration device at the bottom of the bathtub.

The present invention
(1) The bathtub 10, a circulation pipe 14 that takes in hot water in the bathtub 10 and discharges it into the bathtub 10, a filtration device 80 that filters the hot water in the bathtub 10, and the circulation pipe 14 are provided. In a hot bath facility having the pump means 12 and
The filtration device 80 includes a filter medium accommodating portion 20 which is connected to the water intake of the circulation pipe 14 and is provided in a concave shape at the bottom of the bathtub 10.
The above problem is solved by providing the hot bath facility 100 provided with the filter medium mat 30 which is accommodated in the filter medium accommodating portion 20 so as to be able to be taken in and out.
(2) The filter medium mat 30 is characterized in that it is composed of a fiber chip 32 in which synthetic resin fibers are agglomerated, and a bag-shaped net member 34 in which the fiber chip 32 is packed. The above problem is solved by providing the above-mentioned hot bath facility 100.
(3) Further having a heating means 16 for heating the hot water flowing down the circulation pipe 14.
The problem is solved by providing the hot bath facility 100 according to the above (1) or (2), wherein the pump means 12 and the heating means 16 are provided close to the bathtub 10. To do.
(4) The hot bath facility 100 according to (3) above, wherein the pump means 12 and the heating means 16 are arranged in a storage space A under the stepping portion 11 provided on the lower peripheral edge of the bathtub 10. By doing so, the above problem is solved.

Since the hot bath equipment according to the present invention is provided with a filtration device at the bottom of the bathtub, there is no need for a machine room for installing the filter, and no piping for connecting the bathtub and the filtration device is required, which saves space and works for construction work. It is possible to reduce the amount of equipment, shorten the construction time, reduce the equipment cost, and reduce the construction cost. Further, by arranging the pump means and the heating means close to the bathtub, the hot bath equipment can be unitized.
Further, since the filter medium mat of the hot bath facility according to the present invention also serves as a hair catcher, it is not necessary to separately provide a hair catcher, and the maintenance of the filtration device is completed by replacing the filter medium mat, and is taken out by replacement. Since the filter media mat can be washed with a general washing machine, it can be maintained extremely easily and at low cost. In addition, since the filter medium mat can be easily replaced and washed, it is possible to prevent the growth of bacteria in the filtration device and improve the hygienic safety by performing this regularly.

It is a schematic block diagram of the hot bath facility which concerns on this invention. It is a figure which shows the filter medium mat of the hot bath facility which concerns on this invention.

The hot bath equipment according to the present invention will be described with reference to the drawings. Here, FIG. 1 is a schematic configuration diagram of the hot bath facility 100 according to the present invention. The hot bath facility 100 according to the present invention includes a bathtub 10, a circulation pipe 14 that takes in hot water in the bathtub 10 and discharges it into the bathtub 10, a filtration device 80 that filters the hot water in the bathtub 10, and a circulation pipe 14. It has a pump means 12 for pumping hot water from an intake port, which is provided in the water intake port. Further, the hot bath facility 100 may have a heating means 16 for heating the hot water flowing down the circulation pipe 14. The filtration device 80 of the hot bath facility 100 according to the present invention is provided in a concave shape at the bottom of the bathtub 10 and can be taken in and out of the filter medium accommodating portion 20 and the filter medium accommodating portion 20 to which the water intake of the circulation pipe 14 is connected. It includes a filter medium mat 30 to be housed.

Further, the bathtub 10 constituting the hot bath facility 100 is not particularly limited, and a well-known bathtub 10 can be used. Above all, it is particularly preferable to use a bathtub formwork 10a made of a material such as stainless steel or FRP (fiber reinforced plastic) with a bathtub inner wall 10b as an interior attached. The bathtub 10 using the bathtub formwork 10a has high waterproofness, and if a pre-manufactured one is installed on site, the construction work can be performed easily and in a short time. Further, in the configuration using the bathtub form 10a, the filter medium accommodating portion 20 having a desired size can be relatively easily provided by forming the bottom of the bathtub form 10a by partially denting it downward. it can. Further, it is common to provide an upward step on a part or the entire circumference of the bottom (lower) peripheral edge of the bathtub 10 and provide a stepping portion 11 to be used when the user enters the bathtub 10. Then, in the bathtub 10 using the bathtub formwork 10a, the stepping portion 11 can be formed relatively easily. In the configuration shown in FIG. 1A, which will be described later, the space below the stepping portion 11 is used as the storage space A for accommodating the pump means 12 and the heating means 16.

Further, the filter medium accommodating portion 20 accommodates the filter medium mat 30, and is provided in a concave shape on the bottom portion (bottom surface) of the bathtub 10 as described above. The bathtub 10 using the bathtub formwork 10a is generally raised and fixed by a bathtub foundation 5 or the like, and an underfloor space for arranging various pipes or the like is generally provided under the bathtub 10. Therefore, it is preferable that the filter medium accommodating portion 20 has a shape and dimensions that fit in the underfloor space. According to this configuration, it is not necessary to separately construct a space for accommodating the filter medium accommodating portion 20, and the bathtub 10 with the filter medium accommodating portion 20 can be easily installed. The formation position of the filter medium accommodating portion 20 is appropriately designed according to the position of the bathtub foundation 5, the drainage path, the piping path of the circulation pipe 14, and the like. However, from the viewpoint of filtration efficiency, it is preferable to provide the bathtub 10 as close to the center as possible. The shape of the filter medium accommodating portion 20 is not particularly limited, but it is basically preferably square, rectangular, or groove-shaped with a predetermined width and length. The filter medium mat 30 is accommodated in the filter medium accommodating portion 20, and a water-permeable lid member 22 such as punching metal or grating is detachably installed in the opening portion above the filter medium accommodating portion 20. Further, the filter medium accommodating portion 20 is connected to the water intake of the circulation pipe 14 described above and the drainage pipe 18 provided with the on-off valve 18a.

Further, as shown in FIG. 2, the filter medium mat 30 is composed of a fiber chip 32 in which synthetic resin fibers are lumped in a non-woven state, and a bag-shaped net member 34 in which the fiber chips 32 are packed. .. The fiber chip 32 is formed by entwining a predetermined synthetic resin fiber such as polyethylene terephthalate (PET) in a non-woven state to form a lump having an outer dimension of about 10 mm to 15 mm. The shape of the fiber chip 32 is not particularly limited, such as spherical, columnar, cubic, rectangular parallelepiped, polygonal columnar, and amorphous columnar, but it is preferable to use columnar, polygonal columnar, or amorphous columnar. Further, the net member 34 is not particularly limited, and a general open mesh member through which the fiber chip 32 does not pass can be used. Further, the net member 34 has a size such that a large gap does not occur between the net member 34 and the inner wall of the filter medium accommodating portion 20 when the net member 34 is accommodated in the filter medium accommodating portion 20. However, when the volume of the filter media accommodating portion 20 is large, a plurality of filter media mats 30 may be spread over the filter media mats 30. As a result, the hot water of the bathtub 10 sucked from the water intake of the circulation pipe 14 passes through the filter medium mat 30, and at this time, dust and the like in the hot water is collected by the fiber chips 32 and filtered into the hot water.

A well-known pump means 12 is connected to the circulation pipe 14, and the other end is connected to the bathtub 10 as a discharge port. Further, the circulation pipe 14 is provided with well-known heating means 16 such as a heater, a boiler, and a heat exchanger to heat the hot water flowing down the circulation pipe 14. Further, the circulation pipe 14 may be provided with a drug injection section (not shown) for sterilizing by injecting a drug into the flowing hot water. Although the pump means 12 and the heating means 16 are arranged in the vertical direction in the drawing, it is basically preferable that the pump means 12 and the heating means 16 are arranged side by side in the horizontal direction. Further, the circulation pipe 14 is provided with a well-known temperature measuring means 15 for acquiring the temperature of the flowing hot water, and the operation of the heating means 16 is controlled according to the temperature of the hot water acquired by the temperature measuring means 15. Further, a well-known water level sensor 17 may be provided in the bathtub 10 to control the supply of hot water according to the water level of the hot water acquired by the water level sensor 17.

Further, it is preferable that the pump means 12 and the heating means 16 are installed close to the bathtub 10. Since the hot bath equipment 100 according to the present invention is provided with a filtration device 80 under the bathtub 10, the hot bath equipment 100 can be unitized by arranging the pump means 12 and the heating means 16 close to the bathtub 10. it can. According to this configuration, the length of the circulation pipe 14 can be shortened, and the risk of bacterial growth in the pipe can be reduced. In addition, the pipe construction work becomes easy, and the burden of the construction work can be reduced, the construction time can be shortened, and the construction cost can be reduced. In particular, in the configuration shown in FIG. 1A, the storage space A is below the stepping portion 11 formed on the peripheral edge of the bottom of the bathtub 10, and the pump means 12 and the heating means 16 are arranged in this storage space A. In this configuration, it is not necessary to separately construct the installation location of the pump means 12 and the heating means 16, and the hot bath facility 100 can be further made compact. In addition, the installation work of the hot bath facility 100 can be performed more easily. Further, even when the pump means 12 and the heating means 16 are arranged outside the bathtub 10 as shown in FIG. 1B, the circulation pipe 14 can be formed shorter than the conventional sand filter, so that the construction work can be performed. It is possible to reduce and reduce the construction cost. It is preferable to provide a maintenance opening 24 at the installation location of the pump means 12 and the heating means 16 so that the manager can maintain and manage the equipment.

Next, an example of the usage method and operation of the hot bath facility 100 according to the present invention will be described. These operations may be performed manually by an administrator or the like, or may be automatically performed by a control unit (not shown).

First, the manager or the like accommodates the filter medium mat 30 in the filter medium accommodating portion 20. Then, the lid member 22 is fitted into the upper opening of the filter medium accommodating portion 20. At this time, it is preferable that the upper surface of the lid member 22 and the bottom surface of the bathtub 10 are flush with each other without a step. Next, the water tap (hot water tap) to the bathtub 10 is opened with the on-off valve 18a closed. As a result, hot water is supplied into the bathtub 10. The hot water here is hot spring water, groundwater, tap water, hot water, and the like. At this time, the water level of the hot water in the bathtub 10 is acquired by the water level sensor 17 and output to the control unit. Then, when the water level of the hot water in the bathtub 10 reaches a preset water level, the control unit closes the water tap (hot water tap) and stops the supply of the hot water.

Next, the manager or the control unit operates the pump means 12. As a result, the hot water in the bathtub 10 passes through the lid member 22, enters the filter medium accommodating portion 20, passes through the filter medium mat 30, and is sucked from the water intake of the circulation pipe 14. Then, when passing through the filter medium mat 30, dust, hair, etc. in the hot water are collected by the fiber chips 32, and the hot water is filtered. When the hot bath facility 100 has a drug injection section, the drug is appropriately injected into the hot water flowing down the circulation pipe 14, and bacteria and the like are sterilized. Then, the hot water filtered by the filter medium mat 30 flows down in the circulation pipe 14, and the water temperature is measured by the temperature measuring means 15. The control unit or the manager controls the on / off and output (thermal power) of the heating means 16 according to the temperature of the hot water acquired by the temperature measuring means 15. Further, the pump means 12 is controlled to adjust the flow rate of hot water. As a result, the hot water flowing down the circulation pipe 14 is appropriately heated by the heating means 16 and then discharged into the bathtub 10. Then, the hot water in the bathtub 10 is maintained at a preset temperature. Further, when the water level in the bathtub 10 is used and the water level drops below a preset level, the control unit recognizes the drop in the water level via the water level sensor 17 and opens the water tap (hot water tap). To do. As a result, hot water is replenished in the bathtub 10, and the amount of hot water in the bathtub 10 is maintained at a preset water level. The pump means 12 is basically always in operation during the usage time, and the hot water in the bathtub 10 is constantly circulated and filtered by the filter medium mat 30. Since the filter medium mat 30 also serves as a hair catcher, it is not necessary to separately provide a hair catcher in the hot bath facility 100 according to the present invention.

Next, when cleaning the filter medium mat 30, the manager or the like first stops the heating means 16 and the pump means 12. As a result, the inflow and circulation of hot water into the filter medium accommodating portion 20 are stopped. Next, the on-off valve 18a of the drainage pipe 18 is opened to drain the hot water in the bathtub 10 from the drainage pipe 18 of the filter medium accommodating portion 20. Next, the lid member 22 is removed to expose the filter medium mat 30. Next, the filter medium mat 30 is taken out from the filter medium accommodating portion 20 and replaced with the cleaned filter medium mat 30. Next, the lid member 22 is fitted into the upper opening of the filter medium accommodating portion 20. Next, after closing the on-off valve 18a, the water tap (hot water tap) is opened to supply new hot water. At this time as well, the control unit acquires the water level of the hot water in the bathtub 10 via the water level sensor 17 and controls the opening and closing of the water heater (hot water tap), and sets the water level of the hot water to a preset value.

Next, the manager or the control unit operates the pump means 12 and the heating means 16. As a result, the hot water in the bathtub 10 flows down and circulates in the circulation pipe 14, and the hot water is filtered by the filter medium mat 30 after replacement and heated by the heating means 16.

The filter medium mat 30 taken out by replacement can be washed by a general well-known washing machine. As a result, the dust and the like collected by the filter medium mat 30 are washed away, and the filtration capacity of the filter medium mat 30 is restored. Then, it is used again as a replacement filter medium mat 30.

As described above, since the hot bath facility 100 according to the present invention is provided with the filtration device 80 at the bottom of the bathtub 10, there is no need for a large filter such as a sand filter or a machine room in which these are installed. Since the piping connecting the bathtub 10 and the filtration device is unnecessary, space saving and equipment cost can be reduced. In addition, the growth of bacteria in the pipe can be suppressed. Further, by arranging the pump means 12 and the heating means 16 close to the bathtub 10, the hot bath facility 100 can be unitized. As a result, the route of the pipe (circulation pipe 14) is simplified, the construction work and the like are facilitated, the burden of the construction work can be reduced, the construction time can be shortened, the construction cost can be reduced, and the like. In addition, the length of the circulation pipe 14 can be shortened, and the growth of bacteria in the pipe can be suppressed. In particular, the hot bath facility 100 having a storage space A under the stepping portion 11 of the bathtub 10 and the pump means 12 and the heating means 16 arranged in the storage space A minimizes the circulation pipe 14 and makes the hot bath facility 100 extremely compact. It becomes possible to unitize into. Further, it is not necessary to separately construct the installation place of the pump means 12 and the heating means 16, and the installation work of the hot bath facility 100 can be performed more easily.

Further, since the filter medium mat 30 of the hot bath facility 100 according to the present invention also serves as a hair catcher, it is not necessary to separately provide a hair catcher, and the burden on the administrator can be reduced. Further, since the maintenance of the filtration device 80 is completed by replacing the filter medium mat 30, it can be easily performed in an extremely short time. Further, since the filter medium mat 30 taken out by replacement is washed with a general washing machine to recover the filtration capacity, it can be maintained extremely easily and at low cost. As described above, the filtration device 80 of the hot bath facility 100 according to the present invention has an extremely small burden on the administrator and the like for cleaning the filter medium (filter medium mat 30) as compared with the conventional sand filter. It can be replaced and washed frequently, and the growth of bacteria in the filtration device can be prevented and the hygienic safety can be improved.

The configuration, mechanism, shape, dimensions, operation, piping path, etc. of each part of the hot bath facility 100 and the filtration device 80 shown in this example, and the shape, dimensions, etc. of the fiber chip 32 are examples. The present invention is not limited, and the present invention can be modified and implemented without departing from the gist of the present invention.

10 bathtub
11 Stepping part
12 Pump means
14 Circulation piping
16 Heating means
20 Filter media housing
30 Filter material mat
32 fiber chips
34 Net member
80 filtration device
100 hot bath facilities
A storage space

Claims (4)

A bathtub, a circulation pipe that takes in hot water in the bathtub and discharges it into the bathtub,
A filtration device that filters the hot water in the bathtub,
In a hot bath facility having a pump means provided in the circulation pipe.
The filtration device includes a filter medium accommodating portion which is connected to the intake port of the circulation pipe and is provided in a concave shape at the bottom of the bathtub.
A hot bath facility including a filter medium mat that can be taken in and out of the filter medium accommodating portion. The hot bath facility according to claim 1, wherein the filter medium mat is composed of fiber chips in which synthetic resin fibers are lumped and a bag-shaped net member in which the fiber chips are packed. Further having a heating means for heating the hot water flowing down the circulation pipe,
The hot bath facility according to claim 1 or 2, wherein the pump means and the heating means are provided close to the bathtub. The hot bath facility according to claim 3, wherein the pump means and the heating means are arranged in a storage space under a stepping portion provided on the lower peripheral edge of the bathtub.

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