Safe water replenishing device and safe water replenishing method

By designing independent replenishment and cleaning tubes, and combining them with level and temperature sensors, the safety issues caused by water vaporization during chemical etching are resolved, achieving safe and efficient water replenishment and cleaning.

CN121797186APending Publication Date: 2026-04-07SUZHOU KZONE EQUIP TECH
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Patent Information

Application Number
CN202512032843.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In existing technologies, during the chemical etching process, the high-temperature reaction solution water replenishment and rinsing share the same pipeline, which causes the water to vaporize instantly in the reaction tank, potentially leading to safety issues such as chemical vapor explosion.

Method used

It adopts independent replenishment and cleaning pipes. The diameter of the replenishment pipe is smaller than that of the cleaning pipe. The replenishment water and rinsing water are controlled separately. Combined with liquid level sensor and temperature sensor, the water volume is precisely controlled to avoid instantaneous vaporization.

Benefits of technology

It achieves precise control of water replenishment, avoids chemical explosions, improves safety and water replenishment efficiency, and ensures efficient cleaning inside the reaction tank.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of chemical solution etching, and discloses a safe water supplementing device and a safe water supplementing method.The safe water supplementing device comprises a reaction tank, a liquid supplementing pipe and a cleaning pipe; wherein a reaction solution is contained in the reaction tank; one end of the liquid supplementing pipe is communicated with an external reaction water source, the other end of the liquid supplementing pipe is communicated into the reaction tank, and the liquid supplementing pipe is used for quantitatively supplementing reaction water into the reaction solution in the reaction process; one end of the cleaning pipe is communicated with an external cleaning water source, the other end of the cleaning pipe is communicated into the reaction tank, the cleaning pipe is used for introducing cleaning water into the reaction tank after the reaction is finished and all the reaction solution in the reaction tank is emptied, and the diameter of the liquid supplementing pipe is smaller than that of the cleaning pipe. According to the safe water supplementing device, a water supplementing pipeline and a flushing pipeline can be separated, so that the water supplementing amount is accurately controlled, and the safety problem caused by instant gasification of water in the reaction tank is avoided.
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Description

Technical Field

[0001] This invention relates to the field of chemical solution etching technology, and in particular to a safe water replenishment device and a safe water replenishment method. Background Technology

[0002] As demand increases, people's expectations for mobile phone usage also rise. Therefore, to ensure a good user experience, the thickness of the cover plate is usually reduced. Current technology uses chemical etching to thin the cover plate, but this method requires a 72% concentration chemical solution at 170℃. During the reaction, water needs to be replenished periodically and in measured quantities due to evaporation. After the reaction, the solution in the tank is drained and the tank is rinsed. However, because the reaction solution temperature is high, and the replenishment and rinsing share a single pipe, excessive water replenishment during the reaction can cause the water to vaporize instantly within the reaction tank, potentially leading to safety issues such as chemical explosions.

[0003] Therefore, there is an urgent need for a safe water replenishment device and a safe water replenishment method to solve the above-mentioned technical problems. Summary of the Invention

[0004] One object of the present invention is to provide a safe water replenishment device that can separate the water replenishment pipeline from the flushing pipeline, thereby accurately controlling the water replenishment amount and avoiding safety problems caused by the instantaneous vaporization of water in the reaction tank.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A safe water replenishment device, comprising:

[0007] A reaction tank, containing a reaction solution;

[0008] The replenishment pipe has one end connected to an external reaction water source and the other end connected to the reaction tank. The replenishment pipe is used to quantitatively replenish reaction water to the reaction solution during the reaction process.

[0009] The cleaning pipe has one end connected to an external cleaning water source and the other end connected to the reaction tank. The cleaning pipe is used to introduce cleaning water into the reaction tank after the reaction is completed and all the reaction solution in the reaction tank is drained. The diameter of the replenishment pipe is smaller than the diameter of the cleaning pipe.

[0010] Preferably, the reaction tank includes an inner tank and an outer tank, the reaction solution is drawn into the inner tank from the outer tank and can overflow from the inner tank to the outer tank to complete the solution circulation; the replenishment pipe and the cleaning pipe are both connected to the outer tank.

[0011] Preferably, a water-retaining box is provided on the outer periphery of the end of the replenishment tube.

[0012] Preferably, the diameter of the replenishment tube is in the range of 9mm-10mm.

[0013] Preferably, the diameter of the cleaning tube is in the range of 19mm-20mm.

[0014] Preferably, a liquid level sensor is installed inside the outer tank, which is used to determine whether the reaction solution in the reaction tank has been drained.

[0015] Preferably, a temperature sensor is installed at the bottom of the reaction tank, which can detect the temperature at the bottom of the reaction tank to determine whether the reaction solution has been drained.

[0016] Preferably, the bottom of the reaction tank is provided with a drain valve, which is equipped with a switch monitoring system. The switch monitoring system is communicatively connected to the liquid level sensor and the temperature sensor. The drain valve is closed after the reaction solution is drained.

[0017] Another objective of this invention is to provide a safe water replenishment method that can improve water replenishment efficiency and ensure the high efficiency and safety of water replenishment and filling with flushing water.

[0018] To achieve this objective, the present invention adopts the following technical solution:

[0019] A safe water replenishment method, the safe water replenishment method being based on the safe water replenishment device, characterized in that the safe water replenishment method includes the following steps:

[0020] S100. When the amount of reaction water in the reaction solution decreases, reaction water is replenished into the reaction tank through the replenishment pipe.

[0021] S200. After the reaction is completed, the drain valve is opened to drain the reaction solution, and then rinsing water is filled into the reaction tank through the cleaning pipe.

[0022] Preferably, S200 further includes

[0023] S210. When the switch monitoring detects that the liquid level sensor has dropped to the lowest position and the temperature sensor detects that the temperature in the reaction tank has dropped, the reaction solution is drained and the drain valve is closed.

[0024] The beneficial effects of this invention are:

[0025] This invention discloses a safe water replenishment device, which includes a reaction tank, a replenishment pipe, and a cleaning pipe. The reaction tank contains a reaction solution. One end of the replenishment pipe is connected to an external reaction water source, and the other end is connected to the reaction tank. The replenishment pipe is used to quantitatively replenish reaction water to the reaction solution during the reaction process. One end of the cleaning pipe is connected to an external cleaning water source, and the other end is connected to the reaction tank. The cleaning pipe is used to introduce cleaning water into the reaction tank after the reaction is completed and all the reaction solution in the reaction tank is drained. The diameter of the replenishment pipe is smaller than the diameter of the cleaning pipe.

[0026] In this device, the replenishment pipe and the cleaning pipe are independent, allowing for separate control of water replenishment and cleaning water filling. Furthermore, the replenishment pipe has a smaller diameter than the cleaning pipe; this smaller diameter further improves the accuracy of water flow control and reduces the instantaneous water inflow, effectively preventing the replenishment water from instantly vaporizing in the reaction tank and causing a chemical explosion, thus improving safety. In addition, the cleaning pipe has a larger diameter, allowing for rapid filling with cleaning water after the reaction solution is emptied, thereby completing the cleaning process.

[0027] The present invention also discloses a safe water replenishment method, which is based on the above-mentioned safe water replenishment device and can improve water replenishment efficiency and ensure the safety of water replenishment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the safe water replenishment device described in an embodiment of the present invention.

[0029] In the picture:

[0030] 10. Reaction tank; 11. Inner tank; 12. Outer tank;

[0031] 20. Infusion tubing;

[0032] 30. Cleaning pipe;

[0033] 40. Liquid level sensor. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this invention, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used merely for distinction in description and have no special meaning.

[0038] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] like Figure 1 As shown, the present invention provides a safe water replenishment device, which includes a reaction tank 10, a replenishment pipe 20, and a cleaning pipe 30. The reaction tank 10 contains a reaction solution. One end of the replenishment pipe 20 is connected to an external reaction water source, and the other end is connected to the reaction tank 10. The replenishment pipe 20 is used to quantitatively replenish reaction water to the reaction solution during the reaction process. One end of the cleaning pipe 30 is connected to an external cleaning water source, and the other end is connected to the reaction tank 10. The cleaning pipe 30 is used to introduce cleaning water into the reaction tank 10 after the reaction is completed and all the reaction solution in the reaction tank 10 is drained. The diameter of the replenishment pipe 20 is smaller than the diameter of the cleaning pipe 30.

[0040] In this device, the replenishment pipe 20 and the cleaning pipe 30 are independently separated, allowing for independent control of water replenishment and cleaning water filling. Furthermore, the diameter of the replenishment pipe 20 is smaller than that of the cleaning pipe 30. This smaller diameter further improves the accuracy of water flow control and reduces the instantaneous water inflow, effectively preventing the replenishment water from instantly vaporizing in the reaction tank and causing a chemical explosion, thus improving operational safety. In addition, the larger diameter of the cleaning pipe 30 allows for rapid filling with cleaning water after the reaction solution is emptied, thereby completing the cleaning process.

[0041] like Figure 1 As shown, the reaction tank 10 includes an inner tank 11 and an outer tank 12. The reaction solution is drawn into the inner tank 11 from the outer tank 12 and can overflow from the inner tank 11 to the outer tank 12 to complete the solution circulation. The replenishment pipe 20 and the cleaning pipe 30 are both connected to the outer tank 12. In this structure, the working cycle of the reaction solution being drawn into the inner tank 11 from the outer tank 12 and then overflowing from the inner tank 11 to the outer tank 12 can improve the completeness of the reaction. Therefore, the replenishment pipe 20 replenishes a small amount of water from the edge of the outer tank 12, which can minimize the impact of water replenishment on the reaction solution, thereby improving operational safety.

[0042] Furthermore, in this embodiment, a water-retaining box is provided on the outer periphery of the end of the replenishment pipe 20. The water-retaining box can prevent the replenishment water from splashing, thereby avoiding water droplets from splashing to other locations and instantly vaporizing, ensuring the safety of the operation.

[0043] Furthermore, the diameter of the replenishment tube 20 ranges from 9mm to 10mm. This diameter reduces the instantaneous water replenishment volume, effectively preventing excessive low-temperature water from entering the high-temperature reaction solution and causing vaporization, while also allowing for precise control of the replenishment volume. In this embodiment, the replenishment tube 20 is a 3 / 8 inch PFA tube, meaning the outer diameter of the tube is 3 / 8 inch (9.53 mm). PFA indicates that the replenishment tube 20 is made of a high-performance perfluoroalkoxyalkane plastic. This material is not only heat-resistant but also has excellent chemical corrosion resistance and good flexibility, making it easy to install and use, and it will not be corroded by the reaction solution.

[0044] Correspondingly, the diameter of the cleaning pipe 30 ranges from 19mm to 20mm. This pipe diameter ensures sufficient water intake, allowing the reaction tank 10 to be quickly filled with cleaning water after the reaction solution in the reaction tank 10 is drained, thus improving cleaning efficiency. In this embodiment, the cleaning pipe 30 is selected with a diameter of 20mm, and the material used is high-temperature resistant, corrosion-resistant, and easily bendable. If necessary, different colors can be used to distinguish the cleaning pipe 30 from the replenishment pipe 20 to ensure easy identification.

[0045] like Figure 1As shown, a liquid level sensor 40 is installed inside the outer tank 12. The liquid level sensor 40 is used to determine whether the reaction solution in the reaction tank 10 has been drained. If a large amount of cleaning water is introduced rashly before the reaction solution has been drained, the water will vaporize instantly, and the container may injure the personnel. By installing the liquid level sensor 40, it is possible to determine whether there is still reaction solution in the reaction tank 10 by checking whether its top height has reached the lowest point, thereby avoiding the accidental addition of cleaning water.

[0046] Furthermore, in this embodiment, a temperature sensor is installed at the bottom of the reaction tank 10. The temperature sensor can detect the temperature at the bottom of the reaction tank 10 to determine whether the reaction solution has been drained. Since the reaction solution is a high-temperature liquid, when the reaction solution is completely drained, the temperature sensor is exposed to the air, and the detected temperature will decrease. Therefore, the temperature sensor can be used to determine whether the reaction solution in the reaction tank 10 has been completely drained. Combined with the liquid level sensor 40, the accuracy of the determination can be ensured, improving the efficiency and safety of subsequent rinsing.

[0047] Furthermore, in this embodiment, a drain valve is provided at the bottom of the reaction tank 10. The drain valve is equipped with a switch monitoring system, which is communicatively connected to the liquid level sensor 40 and the temperature sensor. The drain valve closes after the reaction solution is drained. When the switch monitoring system detects that the liquid level sensor 40 has dropped to its lowest point and the temperature sensor detects a decrease in temperature, it indicates that the solution has been drained. At this time, the drain valve will automatically close, thereby ensuring that the cleaning water introduced into the cleaning pipe 30 can remain in the reaction tank 10, thus completing the cleaning work.

[0048] This embodiment also provides a safe water replenishment method, which is based on the above-mentioned safe water replenishment device and includes the following steps:

[0049] S100. When the amount of reaction water in the reaction solution decreases, reaction water is replenished into the reaction tank 10 through the replenishment pipe 20.

[0050] S200. After the reaction is complete, the drain valve is opened to drain the reaction solution. Then, rinsing water is filled into the reaction tank 10 through the cleaning pipe 30.

[0051] Based on the aforementioned safe water replenishment device, this method improves the safety and efficiency of water replenishment during the reaction process.

[0052] In addition, step S200 also includes step S210, when the switch monitoring detects that the liquid level sensor 40 has dropped to the lowest position and the temperature sensor detects that the temperature in the reaction tank 10 has dropped, the reaction solution is drained and the drain valve is closed. At this time, the cleaning pipe 30 introduces a large amount of cleaning water into the reaction tank 10.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A safe water replenishment device, characterized in that, include: The reaction tank (10) contains a reaction solution. The replenishment pipe (20) is connected at one end to an external reaction water source and at the other end to the reaction tank (10). The replenishment pipe (20) is used to quantitatively replenish reaction water to the reaction solution during the reaction process. The cleaning pipe (30) is connected at one end to an external cleaning water source and at the other end to the reaction tank (10). The cleaning pipe (30) is used to introduce cleaning water into the reaction tank (10) after the reaction is completed and all the reaction solution in the reaction tank (10) is drained. The diameter of the replenishment pipe (20) is smaller than the diameter of the cleaning pipe (30).

2. The safe water replenishment device according to claim 1, characterized in that, The reaction tank (10) includes an inner tank (11) and an outer tank (12). The reaction solution is drawn into the inner tank (11) from the outer tank (12) and can overflow from the inner tank (11) to the outer tank (12) to complete the solution circulation. The replenishment pipe (20) and the cleaning pipe (30) are both connected to the outer tank (12).

3. The safe water replenishment device according to claim 2, characterized in that, A water-blocking box is provided on the outer periphery of the end of the replenishment tube (20).

4. The safe water replenishment device according to claim 3, characterized in that, The diameter of the replenishment tube (20) is 9mm-10mm.

5. The safe water replenishment device according to claim 4, characterized in that, The diameter of the cleaning tube (30) ranges from 19mm to 20mm.

6. The safe water replenishment device according to claim 2, characterized in that, A liquid level sensor (40) is installed inside the outer tank (12). The liquid level sensor (40) is used to determine whether the reaction solution in the reaction tank (10) has been drained.

7. The safe water replenishment device according to claim 6, characterized in that, A temperature sensor is provided at the bottom of the reaction tank (10). The temperature sensor can detect the temperature at the bottom of the reaction tank (10) to determine whether the reaction solution has been drained.

8. The safe water replenishment device according to claim 7, characterized in that, The bottom of the reaction tank (10) is provided with a drain valve, which is equipped with a switch monitoring system. The switch monitoring system is connected in communication with the liquid level sensor (40) and the temperature sensor. The drain valve is closed after the reaction solution is drained.

9. A safe water replenishment method, said safe water replenishment method being based on the safe water replenishment device of claim 8, characterized in that, The safe hydration method includes the following steps: S100. When the amount of reaction water in the reaction solution decreases, reaction water is added to the reaction tank (10) through the replenishment pipe (20). S200. After the reaction is completed, the drain valve is opened to drain the reaction solution and then the rinsing water is filled into the reaction tank (10) through the cleaning pipe (30).

10. The safe water replenishment method according to claim 9, characterized in that, The S200 also includes S210 When the switch monitoring detects that the liquid level sensor (40) has dropped to the lowest position and the temperature sensor detects that the temperature in the reaction tank (10) has dropped, the reaction solution is drained and the drain valve is closed.