JPH06217892A - Bath device with cleaning promoting device by circulating hot water - Google Patents

Abstract

PURPOSE:To provide the cleaning promoting device by circulating hot water on the conventional bathtub and to combine it with a hot water supply device with a cleaning function. CONSTITUTION:A cleaning promoting device 11 for circulating hot water is provided on a hot water suction section 6 on the inner wall of a bathtub 2. The device 11 is provided with a floating element 13 floating and ascending in a box 12. The device 11 can be made attachable and detachable. In a hot water supply device 3, a filter 15 is provided on the route from a circulating pump 14 to a heat exchange device 18 for additional heating. With a cleaning promoting device 10 by circulating hot water, the flow of hot water is promoted. With the filter 15 of the hot water supply device 3, the dust and scale in the hot water can be effectively filtered. Thus, the comfortable bathing can be available by promoting the flow of hot water to be cleaned even when the existent bathtub 2 is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath apparatus provided with a hot water reflux purification accelerator for a bath.

[0002]

2. Description of the Related Art Recently, there has been an increasing number of bath apparatuses that automatically supply water from a water heater to a bathtub by remote control. Even in such a bath apparatus, the hot water in the bathtub is gradually polluted by the bathing, so it is desirable to replace the hot water with fresh hot water after each bathing in order to have a comfortable bathing. However, in reality, from the economical point of view, the current situation is that hot water is repeatedly used several times. for that reason,
Various measures have been taken to suppress the contamination of hot water in the bathtub. As an example of such means, there may be mentioned a means for providing a hot water supply device with a filtering means and for circulating hot water in the bathtub to the hot water supply device to filter the hot water. At that time, a so-called overflow bathtub with an auxiliary bathtub (mini tank) is applied, and hot water in the bathtub is made to flow, constantly overflowing into the mini tank and flowing back to the water heater, and then introduced into the filter provided in the water heater. There has already been proposed a bath device that removes dust and the like in the warm water and returns the purified warm water to the bathtub. According to such a bath device, it is possible to take a comfortable bath with purified warm water.

[0003]

As described above, the water heater provided with the filtering means and the overflow bath tub in which the hot water is constantly flowed and returned to the water heater are used to suppress the contamination of the hot water in the bath. Therefore, in order to bring about such a function, it is necessary to discard and replace the existing bath device as a whole, which results in an increase in construction cost including installation work of the bath tub and installation cost. It is an object of the present invention to provide a bath apparatus including a hot water recirculation purification accelerator that can divert an existing bath and has a bath hot water purification function from such a background.

[0004]

In order to solve the above-mentioned problems, the present invention connects a bathtub and a water heater by a hot water circulation pipe, and the bathtub has a hot water spouting part and a hot water suction part. Then, the hot water recirculation purification is provided with a housing with an open upper surface, which is provided around the hot water suction portion, and a float that floats up and down depending on the level of the hot water flowing in the housing. The hot water supply device is provided with a promoter, and hot water filtering means is provided in the water heater. In the above structure, the water heater can be provided with a sterilizing means for hot water. Further, the warm water reflux purification accelerator can be configured to be removable.

[0005]

[Function] Hot water is poured from the water heater through the hot water circulation pipe into the bathtub from the hot water jetting part, and when the water level reaches the housing and rises above the housing, the hot water flows into the housing. Go.
Then, the float rises as hot water accumulates in the housing. Here, when the hot water in the housing is sucked from the hot water suction part by the circulation pump in the water heater, the water level in the housing is lowered, and the float is lowered. Then, the position of the top of the float becomes lower due to the water level in the bathtub, so that hot water again flows into the housing. At this time, since there is a slight gap between the float and the housing, the hot water flows in so as to be sucked. Therefore, a flow toward the float is generated on the surface of the hot water of the bathtub, and the removal of dust, hot water, etc. floating on the water surface is promoted from the inside of the hot water of the bathtub. If the warm water recirculation purification accelerator as described above is configured to be removable, the user himself / herself can attach it to the bathtub as necessary. The hot water introduced into the water heater passes through the filter to remove dust, hot water, etc., and is again supplied to the bathtub through the hot water circulation pipe. In addition, if not only filtration but also sterilization is performed in the water heater, purification of hot water is further promoted.

[0006]

EXAMPLES Next, a bath apparatus equipped with a hot water reflux purification accelerator according to the present invention will be described in detail below with reference to an example. FIG. 1 shows a bath apparatus 1. The bath apparatus 1 is configured by connecting a bathtub 2 and a water heater 3 to each other by a hot water circulation pipe 4. That is, the hot water spouting portion 5 and the hot water suction portion 6 formed on the inner wall of the bath 2 are connected with the outflow pipe 7 and the return pipe 8 constituting the hot water circulation pipe 4. Further, a water level detection pipe 9 for detecting the water level of the hot water in the bathtub is connected to the hot water suction part 6 so that the hot water is introduced into a water level sensor 10 provided in the water heater 3.

In such a bath apparatus 1, a hot water recirculation purification accelerator 11 is provided in the hot water suction section 6 on the inner wall of the bathtub 2. The warm water recirculation purification promoter 11 is a housing 12 that is mounted so as to surround the hot water suction portion 6 and has an open upper surface, and a float 13 that floats up and down depending on the water level of inflowing hot water in the housing 12. And (see FIG. 2). A synthetic resin plate (for example, an acrylic plate) is applied to the housing 12, and an attaching means is, for example, an adhesive or screws, and other means may be used as long as the attaching means is simple. A material having a large buoyancy is applied to the float 13. Further, the float 13 has slight gaps G ₁ and G ₂ with the inner wall of the housing 12, as shown in FIG. Further, there is a gap G ₃ between the inner wall of the bathtub 2 (see FIG. 3).
reference).

The water heater 3 is a fully-automatic type having a known structure, has a function of starting operation and switching operation modes by remote control operation, and includes pouring operation, supplemental hot water, additional heating operation, and hot water circulation. It is something that can be driven. That is,
The water heater 3 has a circulation pump 14 for circulating hot water therein, and a filter 15 for purifying hot water from the bathtub 2.
Built in. In addition, here, the components associated with the additional heating circulation operation path and the backwash path of the filter 15 are mainly illustrated. In addition to this, the water heater 3 is provided with a heat exchanger for hot water supply that constitutes a hot water supply system (not shown), a thermomixing valve that mixes hot water and cold water supplied to obtain predetermined hot water, a hopper, and the like.

The additional heating circulation path includes a return pipe 8, a flow path switching valve 16, a circulation pump 14, a flow path switching valve 17, and a filter 1.
5, the heat exchanger 18 for reheating, and the bathtub 2 through the going pipe 7
It is a route to the hot water jetting part 5. A flow passage opening / closing valve 19 is interposed in a passage extending from the flow passage switching valve 17 to the filter 15, and the circulation pump 14 is opened by switching the flow passage of the flow passage switching valve 16 and opening the flow passage of the flow passage opening / closing valve 19. , Flow path switching valve 17, downstream of filter 15, filter 15, flow path opening / closing valve 1
9. It has a backwash route to the outside.

The bath apparatus 1 provided with the hot water reflux purification accelerator according to the present invention is constructed as described above,
Next, the operation will be described. Hot water is poured into the bathtub 2 from the hot water supply unit 3 through the hot water circulation pipe 4 and the hot water jetting unit 5.
When the water level reaches the housing 12 and rises above the housing 12, the hot water flows into the housing 12. Then float 1
3 rises as hot water accumulates in the housing 12.
Here, when the hot water in the housing 12 is sucked from the hot water suction part 6 by the circulation pump 14 in the water heater 3, the housing 1
Since the water level in 2 falls, the float 13 descends. Then,
Since the position of the top of the float 13 becomes lower due to the water level in the bathtub 2, hot water again flows into the housing 12. At this time, a slight gap G is formed between the float 13 and the housing 12.
Since there are ₁ , G ₂ and G ₃ , hot water flows in so as to be sucked. For this reason, a flow toward the float 13 is generated on the water surface of the hot water of the bathtub 2, and removal of dust, hot water, and the like floating on the water surface is promoted from the inside of the hot water of the bathtub 2.

The hot water introduced from the bathtub 2 through the return pipe 8 as described above is supplied to the flow path switching valve 16 and the circulation pump 1.
4, reaching the filter 15 via the flow path switching valve 17, and in the filter 15, dust, hot water, etc. in the hot water is filtered, and then passes through the heat exchanger 18 for reheating through the outflow pipe 7 and again to the bathtub. Two
It is supplied to the hot water spouting part 5 as clear hot water. As described above, since the structure has only the hot water recirculation purification promoter 11, it is not necessary to newly provide the bathtub 2 and the water heater 3, and the initial purpose can be achieved. Moreover, since the mounting work of the housing 12 of the hot water recirculation purification accelerator 11 is easy, the construction cost can be reduced.

By the way, if the filter 15 is filtered several times, dust, hot water, etc. in warm water will be deposited on the filter material and the filtering function will be deteriorated.
The backwashing path is formed to backwash the filter 15. By switching the flow path of the flow path switching valve 17 and opening the flow path of the flow path opening / closing valve 19, hot water is introduced into the filter 15 from the downstream side of the filter 15, and the filter medium is backwashed to the outside of the flow path opening / closing valve 19. To discharge. Since the filtering function of the filter 15 can be maintained by such backwashing operation, contamination of warm water can be suppressed.

Although the bath apparatus 1 equipped with the hot water reflux purifying accelerator according to the present invention has been described above with reference to an embodiment, when the water heater 3 is used not only for filtration but also for sterilization, It is possible to keep the warm water clear. In this case, a sterilizer can be provided in the additional heating circulation path in the path from the downstream side of the filter 15 to the additional heating heat exchanger 18. The sterilizer is, for example, a structure in which an ultraviolet lamp is enclosed inside an outer tube, and the circulating water is exposed to the ultraviolet light by circulating the circulating water inside the outer tube while the ultraviolet lamp is turned on, and is circulated by the ultraviolet light. It is designed to kill bacteria in water. Moreover, what used ozone as a sterilization means can also be applied to the said sterilizer.

Further, if the hot water recirculation purification accelerator 11 is configured to be detachable, the user himself or herself can attach it to the bathtub 2 as needed.

[0015]

As described above, according to the present invention, since it is possible to carry out the present invention only by mounting the hot water recirculation purification promoter on the existing bathtub, it is not necessary to newly install a special bathtub and the facility cost can be reduced. Also, the construction cost can be suppressed. Also,
When the warm water reflux purification accelerator is configured to be detachable, the user himself / herself can attach it to the bathtub as necessary.
Further, the hot water in the bathtub can be suppressed from being polluted by the filter. Furthermore, if a sterilizing means is provided in addition to the filter, it is possible to suppress the pollution of the hot water more effectively and it is comfortable. You can take a bath.

[0016]

[Brief description of drawings]

FIG. 1 is a schematic overall system diagram of a bath apparatus including a hot water reflux purification accelerator according to the present invention.

FIG. 2 is a schematic perspective explanatory view of the warm water reflux purification accelerator shown in FIG.

FIG. 3 is a cross-sectional explanatory view of the warm water reflux purification accelerator shown in FIG.

[Explanation of Codes] 1 Bath device 2 Bathtub 3 Hot water supply device 4 Hot water circulation pipe 5 Hot water jetting part 6 Hot water suction part 7 Outgoing pipe 8 Return pipe 9 Water level detecting pipe 10 Water level sensor 11 Hot water reflux purifier 12 Housing 13 Float 14 Circulation pump 15 Filter 16, 17 Flow path switching valve 18 Heat exchanger for additional heating 19 Flow path opening / closing valve G _{1 to} G ₃ gap

Claims (3)

[Claims] 1. A bathtub and a water heater are connected and connected by a hot water circulation pipe, and the bathtub has a hot water spouting part and a hot water suction part, and the hot water suction part is provided so as to surround the hot water suction part. In addition, the hot water recirculation purification accelerator is provided with a housing whose upper surface is in an open state, and a float that floats up and down depending on the water level of the inflowing hot water in the housing.
A bath device equipped with a hot water recirculation purification promoter, characterized in that hot water filtering means is provided. 2. A bath apparatus provided with a hot water recirculation purification accelerator, characterized in that the water heater according to claim 1 is provided with sterilizing means for hot water. 3. A bath apparatus comprising a hot water recirculation purification promoter, wherein the hot water recirculation purification promoter according to claim 1 is detachably attached.