JPH05309397A - Bathtub apparatus - Google Patents

Abstract

PURPOSE:To obtain a bathtub apparatus requiring no maintenance over a long period of time by providing a passage changeover means selectively connecting the flow passage of a purifier to the jet port of a bathtub or the drain port of a circulating piping system and providing an air diffusing pipe spraying air on the activated stone of the purifier. CONSTITUTION:A bathtub 1 provided with a suction port 11 and a jet port 12, the circulating piping system 3 communicating with the suction port 11 and the jet port 12, the circulating pump 21, heater 23 and purifier 24 connected to the circulating piping system 3, the filter 22 arranged on the upstream side of those machineries at the position communicating with the suction port 11 and a three-way valve 6 as a passage changeover means selectively connecting the passage on the downstream side of the purifier 24 to either one of the jet port 12 of the bathtub 1 or the discharge port 4 of the circulating piping system 3 are provided. The purifier 24 is packed with activated stones S and an air diffusing pipe 25 spraying the air from an air pump 26 on the activated stones S under predetermined pressure is arranged on the upstream side in the circulating direction of the purifier.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub device adopting a circulation heat insulation system.

[0002]

2. Description of the Related Art In a bathtub of a circulating heat insulation system such as a 24-hour bath, it is necessary to always maintain a bathable state and reduce the frequency of draining hot water from the bathtub to reduce the cost of using tap water. A purifying device is connected to the circulation heat-retaining system for the purpose of measuring.

As the purifying device, there is a purifying device having a filter such as a hair catcher and a purifier for removing organic substances such as dirt, such as dirt, which cannot be removed by the filter. Also, as a purifier, there is a structure in which activated stones are filled inside, and the structure that purifies the hot water passing therethrough by decomposing / removing organic substances etc. by bacteria grown in the gaps between the activated stones. ..

[0004]

By the way, according to the above purifier, when bacteria grow excessively between activated stones and become clogged, it is necessary to wash the activated stones each time. Become. Therefore, in the current 24-hour bath, etc., it is necessary to regularly perform maintenance on the purifier.

The present invention has been made in view of the above circumstances, and is intended to provide a bathtub device having a structure in which a cleaning function of a purifier connected to a circulation heat-retaining system is added and thus maintenance is unnecessary for a long period of time. Has the purpose of.

[0006]

A structure for achieving the above object will be described with reference to FIG. 1 corresponding to an embodiment. The present invention provides a suction port 11 and a jet port 1 for circulating hot water.
2, a circulation pipe system 3 having one end communicating with the suction port 11 of the bath 1 and the other end communicating with the ejection port,
The circulation pump 21, the heater 23, and the purifier 24 connected to the circulation piping system 3, and the filtration arranged at a position upstream of the devices in the hot water circulation direction and in communication with the suction port 11 of the bath. Flow path switching means for selectively connecting the flow path on the downstream side of the vessel 22 and the purifier 24 in the hot water circulation direction to either one of the jet port 12 of the bath or the drain port 4 of the circulation piping system 3 ( For example, a three-way valve V6) is provided. The purifier 24 has a structure in which the activated stones S ... S are filled, and the air from the air supply source 26 is directed toward the activated stones S. It is characterized by the provision of an air diffuser 25 for spraying with pressure.

[0007]

By switching the flow path on the downstream side of the purifier 24 and connecting the flow path to the drain port 4, the hot water sucked from the bath 1 is discharged to the outside after passing through the purifier 24. ..
At the same time when this drainage is started, air is supplied to the air diffuser 25,
When sprayed on the activated stones S ··· S in the purifier 24, the air pressure causes the inclusions between the activated stones S ··· S, that is, a part of bacteria, to be ejected to the downstream side and discharged together with the drainage. ..

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of an embodiment of the present invention, in which a piping system diagram and a block diagram of a control system are shown together.

A suction port 11 for circulating hot water is provided on the side of the bathtub 1.
And a spout 12 are provided. Further, nozzles 13a for discharging bubbles 13a are arranged at the bottom of the bathtub 1, and a bubble chamber 13 communicating with each nozzle 13a is arranged below the nozzles 13a.

The circulation heat insulation / purification device 2 includes a circulation pump 21.
And a filter 22 located on the suction port side, a heater 23 and a purifier 24 located on the discharge port side, and the respective devices are connected by the circulation piping system 3. The hot water inflow pipe 31 of the circulation piping system 3 is connected to the suction port 11 of the bathtub 1, and the hot water outflow pipe 32 is connected to the ejection port 12.

The filter 22 is a filter made of woven cloth, paper,
It uses inorganic particles or organic particles such as glass beads, and has a structure similar to that used in a general bath apparatus.

The purifier 24 has a structure in which natural stones such as granite or activated stones such as ceramic balls are filled inside, and by decomposing and removing organic substances and the like by bacteria grown in the gaps between the activated stones. , With a structure that purifies the hot water that passes through here. A gas-liquid separator 27 is arranged above the purifier 24.

The circulation piping system 3 has three pipes around the filter 22.
Three three-way valves V1, V2, V3 are arranged, and three-way valves V are provided on each of the suction side and the discharge side of the circulation pump 21.
4 and V5 are arranged. Further, a three-way valve V6 is arranged downstream of the purifier 24.

In the above circulation piping system 3, each three-way valve V
The flow path formed by switching 1 ... V6 is the suction port 11 of the bathtub 1 → the three-way valve V during the normal operation described later.
1, V2 → filter 22 → three-way valve V3, V4 → circulation pump 21 → three-way valve V5 → heater 23, purifier 24 → three-way valve V
6 → The jet 12 is set, and when the filter 22 is backwashed, the suction port 11 of the bathtub 1 → three-way valve V1 → three-way valve V
4 → circulation pump 21 → three-way valve V5 → three-way valve V3 → filter 22 → three-way valve V2 → drain port 4. When cleaning the purifier 24, the suction port 11 of the bathtub 1 → three-way valve V1, V2 → filter 22 → three-way valve V3, V4 → circulation pump 21 → three-way valve V5 → heater 23, purifier 24 → three-way valve V6 → Set to drainage port 4.

On the other hand, an air diffuser 25 is arranged upstream of the purifier 24 and in the latter stage of the heater 23. Compressed air from an air pump 26 is supplied to the air diffuser 25.
The air pump 26 has a structure in which the air supply pressure can be changed, for example, in two stages. When set to a high pressure, air is blown from the diffuser pipe 25 toward the activated stones S. As a result, a pressure is applied that is large enough to blow off some of the bacteria that are present between the activated stones S. Further, when the pressure is set to a low pressure, the air diffuser 25 applies a pressure large enough to mix air into the circulating hot water. In addition, the air pump 26 and the air diffuser 25
The air piping between and is branched via a three-way valve V7,
The branch pipe 33 is connected to the bubble chamber 13 of the bathtub 1.

Then, the remote controller 5 commands the circulation heat retention purification device 2 to perform the above-mentioned "backwashing of the filter 22", "washing of the purifier 24", "switching the pressure of the air pump 26", and the like. .. In addition to the above command, the remote controller 5 is also configured to perform drive control of the heater 23 and the like in order to keep the temperature of the hot water in the bathtub 1 constant, as in a general circulating bath.

Next, the operation of each part and the operation of the embodiment of the present invention will be described. First, the circulation pump 21 is operated for 24 hours, and normally hot water in the bathtub 1 is sequentially circulated through the filter 22, the heater 23, and the purifier 24. By such circulation, the hot water in the bathtub 1 is purified and maintained at a constant temperature. Further, during the normal operation, the supply pressure of the air pump 26 is set to a low pressure and the supplied air is guided to the air diffuser pipe 25 through the three-way valve V7. Therefore, the hot water that circulates during normal operation contains a large amount of dissolved oxygen, which further improves the activation of aerobic bacteria that multiply in the activated stone S..S portion of the purifier 24. When the bath controller operates the mote controller 5 to instruct that bubbles are to be ejected, the three-way valve V7 connected to the air pump 26 is switched, and the supply air is guided to the bubble chamber 13 of the bath 1 and above it. Nozzle 1
Bubbles are ejected from 3a ... 13a.

Here, when the time reaches, for example, 18:00, the remote controller 5 commands the circulation heat retention purification device 2 to "reverse filter wash". By this command, each three-way valve V1
..V6 is switched and the hot water pumped from the bathtub 1 by the circulation pump 21 flows into the inside of the filter 22 from the outlet, passes through it, and then is discharged from the drainage port 4. The dust such as hair accumulated on the filter 22 is discharged to the outside. After that, when the backwashing with the predetermined amount of water is completed, the remote controller 5 gives an instruction for "normal operation".

Further, the remote controller 5 periodically (for example, every month) instructs the circulation heat retention purification device 2 to the effect of "cleaning device". By this command, the three-way valve V6 is switched to the normal operation state, and the hot water pumped out of the bath 1 flows into the purifier 24 after passing through the filter 22 and drains after passing through this. Emitted from mouth 4. At the same time, the supply pressure of the air pump 26 is switched to a high pressure, and the air is forcibly blown onto the activated stones S ... S of the purifier 22. By this operation, the bacteria that grew excessively between the activated stones S ・ ・ S were blown off to the downstream side by the operation for about 1 month so far, and the amount of bacteria in the activated stone S ・ ・ S portions was thereby increased. It is always maintained in an appropriate amount.

In addition to the structure described above, the filter 22 may be, for example, a hair catcher detachably attachable to the suction port 11 of the bathtub 1. Further, in the above embodiment, the function of mixing air into the circulating hot water from the air diffuser 25 and the function of ejecting bubbles into the hot water in the bathtub 1 are provided, but either of these two functions is provided. The intended purpose of the present invention can be achieved by omitting either one or both.

[0021]

As described above, according to the present invention,
The activated stone inside the purifier connected to the circulation piping system was provided with an air diffuser for injecting air from the upstream side, and the hot water that passed through the purifier could be discharged to the outside by switching the flow path of the circulation piping system. Therefore, it becomes possible to automatically clean the purifier, and thereby, for example, it is possible to realize a maintenance-free 24-hour bath for a long period of time.

Further, by providing an air diffuser in the circulation piping system, it becomes possible to increase the amount of dissolved oxygen contained in the hot water in the bathtub, whereby aerobic bacteria propagated in the activated stone part inside the purifier can be eliminated. It can be activated and protect its survival.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention, showing a block diagram of a piping system and a control system together.

[Explanation of symbols]

 1 ... Bathtub 11 ... Suction port 12 ... Spout 13a ... 13a ... Nozzle (for jetting bubbles) 2 ... Circulating heat insulation purifying device 21 ... Circulation pump 22 ・ ・ ・ ・ Filtration device 23 ・ ・ ・ ・ Heater 24 ・ ・ ・ ・ Purifier 25 ・ ・ ・ ・ Diffuser pipe 26 ・ ・ ・ ・ Air pump 3 ・ ・ ・ ・ ・ ・ Circulating piping system V1 ・ ・ V6 ・ ・ ・ ・ Three-way Valve V7 ・ ・ ・ ・ Three-way valve (for air) 4 ・ ・ ・ ・ Drainage port 5 ・ ・ ・ ・ Remote controller

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B01D 35/027 35/06 C02F 3/06 3/10 A 3/20 C F24H 9/00 W

Claims (3)

[Claims] 1. A bathtub provided with a suction port and a jet port for circulating hot water, a circulation piping system having one end communicating with the suction port of the bathtub and the other end communicating with the jet port, and this circulation piping system. A circulation pump, a heater and a purifier connected to the device, a filter disposed upstream of these devices in the hot water circulation direction and in a position communicating with the suction port of the bath, and the purifier. The downstream side flow path in the hot water circulation direction is provided with flow path switching means for selectively connecting to either one of the jet port of the bath or the drainage port of the circulation piping system, and the purifier is With a structure filled with activated stone, and
A bath apparatus in which an air diffuser for ejecting air from an air supply source toward the activated stones at a predetermined pressure is disposed on the upstream side in the hot water circulation direction. 2. The air supply source has a structure in which the supply air pressure can be changed, and at least the pressure at which the air is forcibly ejected from the air diffuser toward the activated stone or the air is circulated from the air diffuser. The bathtub device according to claim 1, wherein the bathtub device is configured so that one of pressures that can be mixed therein can be selected. 3. A nozzle for ejecting bubbles is arranged in the bathtub, and an air flow path switching means for selectively introducing air from the air supply source to either the nozzle or the diffuser pipe. The bathtub device according to claim 1 or 2, further comprising: