JP-7854757-B1 - Circulation system

Abstract

[Problem] To improve the reusability of water in a water circulation system that recirculates and reuses water for various purposes. [Solution] A circulation system Y is provided that uses water V for its intended purpose and also circulates and reuses the water V, comprising a use unit 1 for using the water V for its intended purpose and a circulation unit 2 for circulating and reusing the water V, wherein the water V is a buffer solution of bicarbonate ions and carbonate ions. [Selection Diagram] Figure 2

Inventors

• 鈴木 康夫

Assignees

• ファミリーレンタリース株式会社

Dates

Publication Date

20260507

Application Date

20250901

Priority Date

20250716

Claims (7)

1. A circulation system that uses water for its intended purpose and also recirculates and reuses the said water, The system comprises: an application unit for supplying the water for use; a circulation unit for circulating and reusing the water for use; and an adjustment unit for adjusting the composition of the water for use . The aforementioned application unit is a washing unit that supplies the aforementioned application water for washing, The aforementioned water for use is a buffer solution of bicarbonate ions and carbonate ions. At least one of the adjustment units is a carbonate ion source that supplies carbonate ions to the water for use, The carbonate ion source is a solid containing calcium carbonate . A circulating system.
2. A circulation system that uses water for its intended purpose and also recycles and reuses the said water, The system comprises: an application unit for supplying the water for use; a circulation unit for circulating and reusing the water for use; and an adjustment unit for adjusting the composition of the water for use . The aforementioned application section is a bathing section that supplies the aforementioned application water to the bathing area. The aforementioned water for use is a buffer solution of bicarbonate ions and carbonate ions. At least one of the adjustment units is a carbonate ion source that supplies carbonate ions to the water for use, The carbonate ion source is a solid containing calcium carbonate . A circulating system.
3. The aforementioned water for use is a mixture containing sodium bicarbonate and calcium carbonate. The circulation system according to claim 1 or 2 .
4. The aforementioned water for use does not contain surfactants. The circulation system according to claim 1 or 2 .
5. It includes a filtration unit for filtering the aforementioned water for use, The filtration unit uses the carbonate ion supply source as the filter material. The circulation system according to claim 1 or 2 .
6. It is equipped with a heating unit that heats the aforementioned water for use, The heating unit heats the water to be used to 40 to 55 degrees Celsius. The circulation system according to claim 1 or 2 .
7. The system comprises a measuring unit for measuring parameters indicating the quality of the water used, and a system control unit. The system control unit controls the adjustment unit based on the parameters measured by the measurement unit. The circulation system according to claim 1 or 2 .

Description

This invention relates to the circulation of water for use. A recycling system has been proposed that recirculates and reuses water for various purposes. Patent Document 1 discloses a washing system comprising a washing tub supplied with washing water, a rinsing water supplied to the washing tub, and a filtration means for filtering the washing water and rinsing water discharged from the washing tub, wherein the washing water circulates between the washing tub and the filtration means, and the rinsing water circulates between the washing tub and the filtration means. Japanese Patent Publication No. 2023-015666 This is an explanatory diagram of a circulation system according to an embodiment of the present invention.This is a schematic piping diagram of a circulation system according to one embodiment of the present invention.This is a schematic block diagram of a system control unit according to one embodiment of the present invention. This disclosure provides a circulation system Y as an embodiment. The circulation system Y is illustrative to illustrate the technical concept of the present invention and does not limit the scope of the technical concept of the present invention. Furthermore, the components of the circulation system Y, as well as their materials, shapes, dimensions, number, and arrangement, may be modified within the scope of the technical concept of the present invention. As shown in Figure 1, the circulation system Y is a system that uses the water V for its intended purpose and also recycles and reuses the water V. The circulation system Y includes an application section 1 that supplies the water V for its intended use. The application section 1 may be a laundry section that supplies the water V for washing, or a bathing section that supplies the water V for bathing facilities (swimming pools, baths, etc.). When the application unit 1 is a washing unit, that is, when the application water V is wash water, the application unit 1 receives the laundry so that it can be easily loaded and unloaded, and washes away dirt from the laundry using the application water V. The application unit 1 may perform various cleaning methods (e.g., ultrasonic cleaning, steam cleaning, ozone cleaning) and various drying methods (e.g., heater drying, heat pump drying) on the laundry. Generally, the application unit 1 is assumed to be a washing machine. The circulation system Y includes a circulation unit 2 that circulates and reuses the water used for application V. The circulation unit 2 recovers the water used for application V discharged from the application unit 1 and supplies this water used for application V back to the application unit 1. The circulation unit 2 is envisioned to have components such as a storage unit (e.g., a tank) for temporarily storing the water used for application V, a transfer path (e.g., piping) for transporting the stored water used for application V, and a drive unit (e.g., a pump) for driving the water used for application V within the transfer path. The circulation unit 2 forms a closed-loop circulation of the water used for application V by connecting these components to the application unit 1. As a result, the circulation system Y can provide an application environment without using water and sewage systems. Water for Use V is a buffer solution of bicarbonate ions ( HCO₃⁻ ) and carbonate ions ( CO₃²⁻ ). In particular, it is preferable that Water for Use V is a mixture containing sodium bicarbonate (baking soda, NaHCO₃⁻ ) and calcium carbonate ( CaCO₃⁻ ). Due to the buffering effect of bicarbonate ions (HCO₃⁻ ) and carbonate ions ( CO₃²⁻ ), Water for Use V is stably maintained at a weakly alkaline pH (pH 8-10 ) against fluctuations to alkaline or acidic. This pH stability delays the deterioration of Water for Use V, and as a result, the number of times Water for Use V can be reused can be increased. Furthermore, bicarbonate ions promote the emulsification of oils and fats, while carbonate ions ionize oils and proteins and disperse them in the water V used for this purpose. Therefore, water V used for this purpose has excellent cleaning power. This disclosure further provides an example of a circulating system Y. This example does not limit the scope of the technical concept of the circulating system Y. The circulation system Y is a laundry system that uses water V for washing and also circulates and reuses the water V. Water for use V is laundry water that eliminates the need for rinsing of the laundry, and in particular, leaves almost no surfactant residue on the laundry and produces little foam. For example, water for use V does not contain surfactants. This reduces rinsing time in laundry and allows water for use V to be disposed of in an environmentally friendly manner. The application unit 1 is a washing machine and is expected to include a washing tub, water inlet, drain outlet, washing control unit, etc. The application unit 1 is connected to the circulation unit 2 via t