A smart dual-membrane direct drinking water dynamic mixing device

Abstract

This utility model discloses an intelligent dual-membrane direct drinking water dynamic mixing device, comprising: a water storage tank, a water quality monitoring module installed at the bottom of the water storage tank, a drain pipe connected to the bottom of the water storage tank, and a drain solenoid valve installed on the drain pipe; and a manifold mechanism connected to the top of the water storage tank. Ultrafiltration water and nanofiltration water are introduced through ultrafiltration inlet pipes and nanofiltration inlet pipes respectively. The manifold mechanism achieves initial mixing of the two water flows. The water quality monitoring module monitors the pH and TDS values ​​of the mixed water in the water storage tank in real time. The controller dynamically adjusts the opening ratio of inlet solenoid valve one and inlet solenoid valve two based on the monitoring data, thereby controlling the mixing ratio of ultrafiltration water and nanofiltration water. This ensures that the final product water retains the beneficial minerals from ultrafiltration technology while also possessing the advantages of nanofiltration technology in effectively reducing dissolved salts, ions, and heavy metals. It achieves intelligent blending of minerals and pure water, meeting users' dual needs for healthy drinking water taste and safety.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to an intelligent dual-membrane direct drinking water dynamic mixing device. Background Technology

[0002] Point-of-use (POU) water purifiers have become crucial for ensuring safe drinking water for families. Currently, the mainstream technologies are mainly divided into two categories: ultrafiltration and reverse osmosis / nanofiltration. Ultrafiltration effectively removes bacteria, viruses, colloids, and large organic molecules, but it cannot remove dissolved salt ions. While its water retains minerals, it suffers from poor taste and fails to effectively reduce health risks in areas with high hardness or high TDS (total dissolved solids). Reverse osmosis / nanofiltration can deeply remove almost all dissolved salts, ions, and heavy metals, producing extremely pure water. However, its water lacks beneficial minerals, is acidic, and has a bland taste. Therefore, it can only produce either pure water or mineralized water, failing to meet user needs. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the prior art and provide an intelligent dual-membrane direct drinking water dynamic mixing device to solve the problems mentioned in the background art.

[0004] A smart dual-membrane direct drinking water dynamic mixing device includes:

[0005] A water storage tank, with a water quality monitoring module installed at the bottom, and a drain pipe connected to the bottom of the water storage tank, with a drain solenoid valve installed on the drain pipe;

[0006] A manifold mechanism connected to the top of the water storage tank;

[0007] The ultrafiltration inlet pipe is connected to the upper side of the manifold;

[0008] And the nanofiltration inlet pipe connected to the other side of the upper end of the manifold.

[0009] Furthermore, the water quality monitoring module includes a sensor base, a pH sensor, and a TDS sensor. The sensor base is fixed to the outer wall of the water storage tank, and the pH sensor and TDS sensor are fixedly installed on the surface of the sensor base. The ends of the pH sensor and TDS sensor extend into the interior of the water storage tank.

[0010] Furthermore, the manifold mechanism includes a manifold pipe, a central column, and a spiral guide plate. The manifold pipe is connected to the upper end of the water storage tank. The upper end of the manifold pipe is a closed end, and the lower end is an open end. The central column is fixed to the upper end of the inner wall of the manifold pipe, and the spiral guide plate is fixed to the outside of the central column. The outer wall of the spiral guide plate is fixed to the inner wall of the manifold pipe.

[0011] Furthermore, the ultrafiltration water inlet pipeline includes an ultrafiltration water inlet pipe and a water inlet solenoid valve. The ultrafiltration water inlet pipe is connected to one side at the upper end, and the water inlet solenoid valve is installed on the ultrafiltration water inlet pipe.

[0012] Furthermore, the nanofiltration inlet pipeline includes a nanofiltration inlet pipe and an inlet solenoid valve 2. The nanofiltration inlet pipe is connected to the other side of the upper end, and the inlet solenoid valve 2 is installed on the nanofiltration inlet pipe.

[0013] Furthermore, the signal output terminals of the pH sensor and the TDS sensor are connected to a controller, which is respectively connected to the drain solenoid valve, the inlet solenoid valve one, and the inlet solenoid valve two.

[0014] Beneficial effects: Ultrafiltration and nanofiltration permeate water are introduced through ultrafiltration and nanofiltration inlet pipes respectively. The two water flows are initially mixed using a manifold mechanism. The pH and TDS values ​​of the mixed water in the storage tank are monitored in real time by a water quality monitoring module. The controller dynamically adjusts the opening and closing ratio of inlet solenoid valve one and inlet solenoid valve two based on the monitoring data, thereby controlling the mixing ratio of ultrafiltration and nanofiltration water. This ensures that the final product water retains the beneficial minerals brought by ultrafiltration technology while also possessing the advantages of nanofiltration technology in effectively reducing dissolved salts, ions, and heavy metals. It achieves intelligent blending of minerals and pure water, meeting users' dual needs for healthy drinking water taste and safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the merging mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the water quality monitoring module of this utility model.

[0018] In the diagram: 1-Water storage tank, 11-Water quality monitoring module, 111-Sensor base, 112-PH sensor, 113-TDS sensor, 12-Drain pipe, 13-Drain solenoid valve, 2-Manifold mechanism, 21-Manifold pipe, 22-Central column, 23-Spiral guide plate, 3-Ultrafiltration inlet pipe, 31-Ultrafiltration inlet pipe, 32-Inlet solenoid valve one, 4-Nanofiltration inlet pipe, 41-Nanofiltration inlet pipe, 42-Inlet solenoid valve two. Detailed Implementation

[0019] Please see Figures 1-3A smart dual-membrane direct drinking water dynamic mixing device includes a water storage tank 1, a manifold mechanism 2 connected to the upper end of the water storage tank 1, an ultrafiltration inlet pipe 3 connected to one side of the upper end of the manifold mechanism 2, and a nanofiltration inlet pipe 4 connected to the other side of the upper end of the manifold mechanism 2. A water quality monitoring module 11 is installed at the lower part of the water storage tank 1, and a drain pipe 12 is connected to the lower part of the water storage tank 1. A drain solenoid valve 13 is installed on the drain pipe 12. The water storage tank 1 serves as a storage container for mixed water. The water quality monitoring module 11 at the lower part of the tank is used to detect key parameters of the water in the tank in real time. The drain pipe 12 and the drain solenoid valve 13 are used to automatically drain water when the controller determines that the water quality is qualified. The ultrafiltration inlet pipe 3 and the nanofiltration inlet pipe 4 introduce two types of water with different qualities produced by the ultrafiltration membrane and the nanofiltration membrane into the manifold mechanism 2, respectively. Through dynamic mixing and adjustment, the limitations of water production by a single membrane technology are overcome, and a balance between mineral retention and deep purification is achieved.

[0020] The water quality monitoring module 11 includes a sensor base 111, a pH sensor 112, and a TDS sensor 113. The sensor base 111 is fixed to the outer wall of the water storage tank 1. The pH sensor 112 and the TDS sensor 113 are fixedly installed on the surface of the sensor base 111. The ends of the pH sensor 112 and the TDS sensor 113 extend into the interior of the water storage tank 1, and the pH sensor 112 and the TDS sensor 113 are in direct contact with the water in the water storage tank 1. The pH sensor 112 monitors the acidity and alkalinity of the water in real time, and the TDS sensor 113 detects the total dissolved solids content. These data are transmitted to the controller through a signal line. The controller performs real-time analysis according to the preset pH and TDS target range (e.g., pH neutral and TDS in the suitable drinking range), providing a basis for adjusting the mixing ratio and ensuring that the produced water will not affect the taste and health due to excessive acidity or excessive / low mineral content.

[0021] The manifold mechanism 2 includes a manifold 21, a central column 22, and a spiral guide plate 23. The manifold 21 is connected to the upper end of the water storage tank 1. The upper end of the manifold 21 is closed, and the lower end is open. The central column 22 is fixed to the upper end of the inner wall of the manifold 21. The spiral guide plate 23 is fixed to the outside of the central column 22. The outer wall of the spiral guide plate 23 is fixed to the inner wall of the manifold 21. After the ultrafiltration water and nanofiltration water enter from both sides of the upper end of the manifold 21, they flow downward along the spiral path under the guidance of the spiral guide plate 23. The central column 22 plays the role of fixing the spiral guide plate 23. This spiral flow mode increases the contact time and area of ​​the two water flows, promotes the full mixing of minerals in the ultrafiltration water and low-ion water in the nanofiltration water, and avoids direct flow into the water storage tank 1, which would cause stratification. This ensures the uniformity of mixing and improves the consistency of water quality.

[0022] The ultrafiltration water inlet pipe 3 includes an ultrafiltration water inlet pipe 31 and an inlet solenoid valve 32. The ultrafiltration water inlet pipe 31 is connected to the upper side, and the inlet solenoid valve 32 is installed on the ultrafiltration water inlet pipe 31. The ultrafiltration water inlet pipe 31 is connected to the water production end of the external ultrafiltration system to provide water containing minerals but possibly with high TDS. The inlet solenoid valve 32 is controlled by the controller and adjusts its opening degree according to the feedback signal from the water quality monitoring module 11. For example, when the TDS sensor 113 detects that the TDS value in the water storage tank 1 is too high, the controller may reduce the opening degree of the inlet solenoid valve 32 to reduce the proportion of ultrafiltration water, and vice versa, to dynamically maintain the mineral content in the mixed water and ensure a rich taste and safety.

[0023] The nanofiltration inlet water pipeline 4 includes a nanofiltration inlet water pipe 41 and an inlet solenoid valve 42. The nanofiltration inlet water pipe 41 is connected to the other side of the upper end. The inlet solenoid valve 42 is installed on the nanofiltration inlet water pipe 41. The nanofiltration inlet water pipe 41 is connected to the product water end of an external nanofiltration or reverse osmosis system to provide water with low TDS but lacking minerals after deep purification. The inlet solenoid valve 42 is driven by a controller and works in conjunction with the inlet solenoid valve 32. When the pH sensor 112 detects that the water is too acidic or the TDS is too low, the controller may increase the opening of the inlet solenoid valve 42 to increase the proportion of nanofiltration water, so as to neutralize the acidity and alkalinity and reduce the overall TDS, thereby achieving precise water quality control and meeting the drinking water needs under different water source conditions.

[0024] The signal output terminals of pH sensor 112 and TDS sensor 113 are connected to a controller. The controller is connected to the drain solenoid valve 13, the inlet solenoid valve 32, and the inlet solenoid valve 42, respectively. As the core of intelligent control, the controller continuously receives real-time data from pH sensor 112 and TDS sensor 113 and compares it with the standard water quality parameters stored internally. If the water quality deviates from the preset range (such as excessively high TDS or abnormal pH), the controller will calculate the optimal mixing ratio and output a signal to adjust the opening of inlet solenoid valve 32 and inlet solenoid valve 42, changing the flow ratio of ultrafiltration water and nanofiltration water. At the same time, if the water quality is qualified, the drain solenoid valve 13 can be activated to discharge the stored water for the user, ensuring the safety and palatability of the direct drinking water.

Claims

1. A smart dual-membrane direct drinking water dynamic mixing device, characterized in that, include: A water storage tank (1) is provided, a water quality monitoring module (11) is installed at the bottom of the water storage tank (1), a drain pipe (12) is connected to the bottom of the water storage tank (1), and a drain solenoid valve (13) is installed on the drain pipe (12); The manifold (2) is connected to the upper end of the water storage tank (1); The ultrafiltration inlet pipe (3) is connected to the upper side of the manifold (2); And the nanofiltration inlet pipe (4) connected to the other side of the upper end of the manifold (2).

2. The intelligent dual-membrane direct drinking water dynamic mixing device according to claim 1, characterized in that, The water quality monitoring module (11) includes a sensor base (111), a pH sensor (112), and a TDS sensor (113). The sensor base (111) is fixed to the outer wall of the water storage tank (1). The pH sensor (112) and the TDS sensor (113) are fixedly installed on the surface of the sensor base (111). The ends of the pH sensor (112) and the TDS sensor (113) extend into the interior of the water storage tank (1).

3. The intelligent dual-membrane direct drinking water dynamic mixing device according to claim 2, characterized in that, The manifold mechanism (2) includes a manifold (21), a central column (22), and a spiral guide plate (23). The manifold (21) is connected to the upper end of the water storage tank (1). The upper end of the manifold (21) is closed, and the lower end is open. The central column (22) is fixed to the upper end of the inner wall of the manifold (21). The spiral guide plate (23) is fixed to the outside of the central column (22). The outer wall of the spiral guide plate (23) is fixed to the inner wall of the manifold (21).

4. The intelligent dual-membrane direct drinking water dynamic mixing device according to claim 3, characterized in that, The ultrafiltration water inlet pipeline (3) includes an ultrafiltration water inlet pipe (31) and a water inlet solenoid valve (32). The ultrafiltration water inlet pipe (31) is connected to the upper side, and the water inlet solenoid valve (32) is installed on the ultrafiltration water inlet pipe (31).

5. The intelligent dual-membrane direct drinking water dynamic mixing device according to claim 4, characterized in that, The nanofiltration inlet pipe (4) includes a nanofiltration inlet pipe (41) and an inlet solenoid valve (42). The nanofiltration inlet pipe (41) is connected to the other side of the upper end, and the inlet solenoid valve (42) is installed on the nanofiltration inlet pipe (41).

6. The intelligent dual-membrane direct drinking water dynamic mixing device according to claim 5, characterized in that, The signal output terminals of the PH sensor (112) and TDS sensor (113) are connected to a controller, which is connected to the drain solenoid valve (13), the inlet solenoid valve one (32) and the inlet solenoid valve two (42) respectively.

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