JPH0323355Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a bath water circulation purification device.

(Conventional Device) A device for circulating and purifying hot water in a bathtub is usually configured by connecting a circulation pump, a filter tank, a septic tank, an auxiliary heater, and a sterilizing ozone suction device in series.

The disadvantage of this conventional device is that the device is large because each device is connected in series. Furthermore, since the effective period of the filter tank, that is, the time to replace it and the time to clean the purifying agent (activated stone) are different, it is inconvenient that work must be done for each device.

Furthermore, since the passage area of the bath water in the filter is not uniform, the clogged portions are unevenly distributed, making it impossible to utilize the filter effectively.In addition, there is a drawback that the passage resistance of the hot water is relatively large, and the amount of hot water delivered is small relative to the pump capacity.

Furthermore, there is a drawback that residual ozone tends to remain in the bathtub because ozone is not sufficiently decomposed within the equipment or the pipes.

(Objective) The present invention provides a bath water circulation purification device that improves these drawbacks.

(Structure) The proposed device has a cylindrical upper tank having an opening at the bottom and an upper lid placed on the upper part of the lower tank to which the discharge pipe is connected, and the perforated bottom is located at the center of the upper tank. A cylindrical filter layer consisting of a primary filter and a secondary filter is arranged concentrically on the outer periphery of the accommodating cylinder, and a cylindrical filter layer consisting of a primary filter and a secondary filter is disposed concentrically on the outer periphery of the accommodating cylinder. A swirling flow space is formed between the layer and the tank wall, a filtrate rising space is formed between the filter layer and the housing cylinder, and an inlet pipe from the circulation pump is connected to the tangential direction of the outer wall of the upper tank. Furthermore, an auxiliary heater and a temperature sensor for controlling the heater are installed in the discharge pipe, and the discharge pipe is connected to the ozone injection diffusion tower equipped with an aeration means.

(Effects) In the present device, since the purification activated stone storage cylinder and the filter layer are arranged concentrically in the same tank, both can be easily taken out of the tank by removing the top cover.

In addition, the bath water from the inlet pipe passes through the filter layer while flowing in a swirling flow between the inner circumferential surface of the tank outer wall and the outer circumferential surface of the filter layer, so the entire surface of the filter becomes a hot water flow area, and therefore there is no resistance to passage. becomes smaller.

The decomposition rate of the ozone injected into the ozone tower is quickly stopped by forced diffusion, resulting in a sharp reduction in the amount of residual ozone, which is sanitary and safe.

(Example) In the figure, 1 is a suction pipe that sucks bath water from the bathtub, 2 is a self-priming circulation pump, 3 is an introduction pipe, 4 is a cylindrical upper tank, and the introduction pipe 3 is the outer wall of the tank. It is attached in the tangential direction of 5.

Reference numeral 6 indicates a removable upper lid, and 7 indicates an opening at the bottom, which communicates with the inside of the lower tank 8. 29 is a draining pot.

9 is a discharge pipe, 10 is a temperature sensor, 11 is an auxiliary heater, 12 is an ozone injection diffusion column, and 13 is a discharge pipe.

In the upper tank 4, 14 is a cylindrical storage tower for storing activated stones such as maifan stone, which is made of synthetic resin or stainless steel and has an upper opening 15;
It has a bottom perforation 16.

A cylindrical filter 17 is composed of a primary filter 18 made of felt, a secondary filter 19 made of bellows-shaped filter paper, and a porous filter core material 20.

The cylindrical filter 17 has annular packings 21 and 22 disposed at its upper end 17a and lower end 17b, respectively, and an annular filtrate space 23 between it and the housing cylinder 14.
are placed concentrically so that they are formed.

24 is a ring member for holding in place, and 25 is a gasket for sealing.

In the above device, hot water supplied from the introduction pipe 3 is discharged into the upper tank 4 as a centrifugal flow, and the swirling flow space 26 between the inner surface of the tank wall and the filter 17
While flowing through the filter layer 17, the liquid passes through the entire circumference of the filter layer 17, rises in the filtrate rising space 23, and enters the containing tower 14 through the opening 15.

The hot water containing activated ions passing through the activated stone gaps passes through the perforation 16 and the bottom opening 7 of the upper tank, accumulates in the lower tank 8, and is discharged to the discharge pipe 9.

When the hot water temperature is lower than the set temperature, the auxiliary heater 11 is activated.

Inside the ozone tower 12, ozone from an ozone generator 27, which is known per se, is forced into the ceramic foam cylinder 28, which is a diffuser, and is diffused to act as a disinfectant, and then decomposed within the tower. Bath water with an extremely low residual ozone concentration is supplied to the discharge pipe.

Note that in order to improve the diffusivity of ozone, the discharge pipe connected to the ozone tower may be directed downward to form a countercurrent type, or diffuser plates may be provided in multiple stages.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of the present device, FIG. 2 is a cross-sectional plan view of the main part, and FIG. 3 is a cross-sectional side view of the main part. 4... Upper tank, 7... Bottom opening, 8... Lower tank, 12... Ozone injection diffusion column, 14...
Activated stone storage tower, 17...filter layer, 23...filtrate rising space, 26...swirling flow space, 28...aeration means.

Claims (1)

[Scope of utility model registration request] In a bath water circulation purification system equipped with an environmental pump, a filter, an activated stone storage tower, and an ozone sterilization tower, an inlet pipe connected to the pump is connected tangentially to a cylindrical upper tank, and an upper opening is provided in the upper tank. An activated stone storage cylinder having a perforated bottom and a cylindrical filter layer are placed concentrically through annular packings, so that there is a rotating structure between the inner surface of the upper tank and the filter layer. A flow space is formed, and a filtrate rising space is formed between the cylindrical filter layer and the housing cylinder, and the upper tank is placed therein, and the upper tank is placed therein, and communicates with an opening provided at the bottom of the upper tank. A bath water circulation purification device comprising a lower tank and a discharge pipe connected to the lower tank, which is connected to the discharge pipe via an ozone injection diffusion tower equipped with an aeration means.