Micro-nano bubble low deuterium water production system

Abstract

This invention discloses a micro / nano bubble low-deuterium water production system, comprising a raw water pretreatment unit, a multi-stage membrane distillation assembly, a cooling module, an ultrasonic-jet composite bubble generator, a pressurized dissolved gas tank, and a buffer tank, all connected sequentially via process pipelines. Its advantages are: 1) It can achieve a deuterium removal rate of 92% (compared to 150 ppm in natural water), and the bubble half-life is extended from 30 days to 120 days; 2) Compared with existing technologies for low-deuterium water preparation and the separation process of micro / nano bubble generation, this invention reduces energy consumption by 30% and increases water production rate to 85%; 3) In vitro experiments have verified that the product shows an approximately 5-fold increase in cell permeability and a 41% increase in ATP production.

Description

Technical Field

[0001] This utility model relates to low-deuterium water production technology, and in particular to a micro-nano bubble low-deuterium water production device. Background Technology

[0002] Deuterium-depleted water (DDW) refers to special water bodies with a deuterium content lower than that of ordinary natural water (approximately 150 ppm). Its core uses include promoting metabolism, enhancing immunity, improving sleep, anti-oxidation, anti-fatigue, and assisting in disease management, and it is widely used in health maintenance and adjunctive therapy.

[0003] Traditional methods for preparing deuterium-rich water include distillation and membrane separation, but these methods suffer from high energy consumption and low water yield. Current micro / nano bubble technology, by generating bubbles with diameters of 100 nm to 10 μm, can improve the mass transfer efficiency and bioactivity of liquids. However, current technologies often involve simple physical mixing of deuterium-rich water and micro / nano bubbles, failing to achieve synergistic process optimization. Therefore, it is necessary to develop a micro / nano bubble deuterium-rich water production system to address the problems of existing technologies that separate the deuterium-rich water preparation process from the micro / nano bubble generation process, resulting in low equipment integration, uneven bubble diameter distribution (0.001 nm to 10000 μm), poor stability affecting product shelf life, and difficulty in synergistically controlling deuterium removal rate and bubble concentration, thus limiting the improvement of bioactivity. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a micro-nano bubble low-deuterium water production system.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a micro-nano bubble low-deuterium water production system, characterized in that: it includes a raw water pretreatment unit, a multi-stage membrane distillation assembly, a cooling module, an ultrasonic-jet composite bubble generator, a pressurized dissolved gas tank and a buffer tank, which are connected in sequence through process pipelines.

[0006] The ultrasonic-jet composite bubble generator described in this invention is a bubble generating device that combines the synergistic effect of ultrasonic cavitation and jet shear force. It is commercially available, for example, the JXWNP series nano-micro bubble generator from Shanghai Metallographic Environmental Technology Co., Ltd.

[0007] As a further improvement of this invention, an online laser particle size analyzer for monitoring the diameter of bubbles at the outlet end of the pressurized dissolved gas tank is embedded therein. More preferably, the online laser particle size analyzer and the control center of the ultrasonic-jet composite bubble generator are interlocked and controlled via a PCL system.

[0008] As a further improvement of this utility model, the raw water pretreatment unit includes a raw water filter and a raw water return cleaning pipeline. More preferably, the outlet end of the raw water pretreatment unit includes a water quality monitoring sensor, which can at least collect and monitor the turbidity, color, COD, and TDS parameters of the raw water. Technicians can also add other required parameters as needed. More preferably, the water quality monitoring sensor, the return control valve of the raw water return cleaning pipeline, and the inlet valve between the raw water pretreatment unit and the multi-stage membrane distillation assembly are interlocked and controlled via a PCL system.

[0009] As a further improvement of this utility model, the multi-stage membrane distillation assembly has a 3-5 stage membrane series structure, with each stage membrane equipped with an independent temperature controller. More preferably, the multi-stage membrane distillation assembly includes a deuterium content sensor in the product water; and the deuterium content sensor in the product water and the temperature controller are interlocked and controlled through a PCL system.

[0010] The beneficial effects of this invention are: 1) It can achieve a deuterium removal rate of 92% (compared to 150 ppm in natural water), and the bubble half-life is extended from 30 days to 120 days; 2) Compared with the existing technology for low-deuterium water preparation and separation process of micro-nano bubble generation, the energy consumption of this invention is reduced by 30%, and the water production rate is increased to 85%; 3) The product has been verified by in vitro experiments to have a 5-fold increase in cell permeability and a 41% increase in ATP production. Attached Figure Description

[0011] Figure 1 This is a flow chart of the micro-nano bubble low-deuterium water production system of this utility model.

[0012] The diagram is labeled as follows: 1-Raw water pretreatment unit, 101-Raw water filter, 102-Raw water reflux cleaning pipe, 103-Water quality monitoring sensor, 104-Reflux control valve, 105-Inlet valve, 2-Multi-stage membrane distillation assembly, 201-Temperature controller, 202-Product water deuterium content sensor, 3-Cooling module, 4-Ultrasonic-jet composite bubble generator, 5-Pressurized dissolved air tank, 501-Online laser particle size analyzer, 6-Buffer tank. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1As shown, the micro / nano bubble low-deuterium water production system of this invention includes a raw water pretreatment unit 1, a multi-stage membrane distillation assembly 2, a cooling module 3, an ultrasonic-jet composite bubble generator 4, a pressurized dissolved air tank 5, and a buffer tank 6, all connected sequentially via process pipelines. An online laser particle size analyzer 501 for monitoring the diameter of bubbles at the outlet end of the pressurized dissolved air tank 5 is embedded in the outlet end. The online laser particle size analyzer 501 and the control center of the ultrasonic-jet composite bubble generator 4 are interlocked via a PCL system. The raw water pretreatment unit 1 includes a raw water filter 101 and a raw water return cleaning pipeline 102. The outlet end of the raw water pretreatment unit 1 includes a water quality monitoring sensor 103, which can collect and monitor the turbidity, color, COD, and TDS parameters of the raw water. The water quality monitoring sensor 103, the return control valve 104 of the raw water return cleaning pipeline 102, and the inlet valve 105 between the raw water pretreatment unit 1 and the multi-stage membrane distillation assembly 2 are interlocked via a PCL system. The multi-stage membrane distillation assembly 2 has a 3-5 stage membrane series structure, with each stage membrane equipped with an independent temperature controller 201. The multi-stage membrane distillation assembly 2 includes a deuterium content sensor 202 in the product water; and the deuterium content sensor 202 in the product water and the temperature controller 201 are interlocked and controlled through a PCL system.

[0015] The working process and principle of this utility model are as follows:

[0016] Raw water (such as municipal tap water) enters the raw water pretreatment unit 1, where it is filtered by the raw water filter 101 to remove impurities, suspended solids, microorganisms, etc., preventing clogging or contamination of the subsequent membrane distillation components and ensuring the purity of the deuterium-rich water. The filtered raw water flows through the water quality monitoring sensor 103 located at the outlet end, which monitors the pretreated water quality (such as turbidity, COD, TDS, etc.) in real time. If the indicators exceed the standards, a backflow cleaning is triggered to ensure that the influent meets the feed requirements of the multi-stage membrane distillation component 2.

[0017] The pretreated feed water enters the multi-stage membrane distillation unit 2, which employs a 3-5 stage membrane series structure. The temperature is increased in a gradient of 200℃→500℃→800℃ (or a user-defined gradient), maintaining a vacuum of -0.09MPa. This reduces the deuterium content of the feed water from over 150ppm in natural water to 10-25ppm, with daily fluctuations ≤±2ppm. The heating temperature and vacuum of each membrane stage are controlled by a PLC. A deuterium content sensor 202 collects the deuterium content of the product water in real time. If the content deviates from the target value (e.g., above 25ppm), the heating rate of the next stage is automatically adjusted to ensure a deuterium removal rate of 92%.

[0018] The deuterium-rich water produced by membrane distillation first enters the cooling module 3, where it is cooled to 5–25°C to provide the necessary temperature conditions for the subsequent stable generation of bubbles (high temperatures can damage the bubble structure).

[0019] In the bubble generation stage, cooled deuterium-rich water is introduced into the ultrasonic-jet composite bubble generator 4, while food-grade gas (CO2 or O2) is injected simultaneously. The ultrasonic power (e.g., 1.2kW) and jet pressure (e.g., 0.4MPa) are controlled. Through the combined technology of "ultrasonic cavitation + jet shearing," bubbles with a diameter of 0.5–5μm and a concentration ≥1×10⁻⁶ are generated. 8 Micro-nano bubbles per mL.

[0020] In the mixing process, deuterium-containing water containing air bubbles enters the pressurized dissolved air tank 5. The pressure inside the tank is controlled to be maintained at 0.3–0.5 MPa and the stirring speed at 300 rpm to ensure dynamic gas-liquid balance and prevent bubble agglomeration. The online laser particle size analyzer 501 at the outlet collects bubble diameter distribution data in real time. If the diameter exceeds the range of 0.5–5 μm (such as the appearance of large bubbles >5 μm), the PCL system immediately feeds back to the ultrasonic-jet composite bubble generator 4, automatically adjusting the ultrasonic power or jet pressure to ensure stable bubble parameters.

Claims

1. A micro / nano bubble low-deuterium water production system, characterized in that: It includes a raw water pretreatment unit (1), a multi-stage membrane distillation assembly (2), a cooling module (3), an ultrasonic-jet composite bubble generator (4), a pressurized dissolved air tank (5), and a buffer tank (6) connected in sequence through process pipelines. 2.The micro-nano bubble low deuterium water production system according to claim 1, characterized in that: The outlet end of the pressurized dissolved gas tank (5) is embedded with an online laser particle size analyzer (501) for monitoring the diameter of bubbles at the outlet end. 3.The micro-nano bubble low deuterium water production system according to claim 2, characterized in that: The online laser particle size analyzer (501) and the ultrasonic-jet composite bubble generator (4) control center are interlocked through the PCL system. 4.The micro-nano bubble low deuterium water production system according to claim 1, characterized in that: The raw water pretreatment unit (1) includes a raw water filter (101) and a raw water return cleaning pipe (102). 5.The micro-nano bubble low deuterium water production system according to claim 4, characterized in that: The outlet end of the raw water pretreatment unit (1) includes a water quality monitoring sensor (103), which is capable of collecting at least the turbidity, color, COD and TDS parameters of the raw water.

6. The micro / nano bubble low-deuterium water production system according to claim 5, characterized in that: The water quality monitoring sensor (103) is interlocked with the reflux control valve (104) of the raw water reflux cleaning pipeline (102) and the inlet valve (105) between the raw water pretreatment unit (1) and the multi-stage membrane distillation assembly (2) through the PCL system.

7. The micro / nano bubble low-deuterium water production system according to claim 1, characterized in that: The multi-stage membrane distillation assembly (2) is a 3-5 stage membrane series structure, with each stage membrane having an independent temperature controller (201).

8. The micro / nano bubble low-deuterium water production system according to claim 7, characterized in that: The multi-stage membrane distillation assembly (2) includes a deuterium content sensor (202) in the product water; and the deuterium content sensor (202) in the product water and the temperature controller (201) are interlocked and controlled by a PCL system.

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