Automatic passivation solution adding device

Abstract

The utility model discloses an automatic passivation solution adding device, which relates to the technical field of hot galvanizing square and rectangular pipes and comprises a passivation solution circulating barrel, supporting legs are arranged at the bottom of the passivation solution circulating barrel, and a filtering partition plate is arranged in the passivation solution circulating barrel. According to the automatic passivation solution adding device, the highest liquid level and the lowest liquid level in a liquid level detection pipe are monitored in real time through a high liquid level sensor and a low liquid level sensor, when the highest liquid level and the lowest liquid level reach the lowest point, a magnetic pump is controlled to automatically extract passivation solution and add the passivation solution into a passivation solution circulating barrel, and when the highest liquid level reaches the highest point, the magnetic pump is controlled to stop running; the PH value is monitored in real time through the PH value detection sensor, the PH value is displayed through the display screen, staff can read the numerical value regularly, the passivation solution does not need to be added manually, direct contact of the passivation solution is reduced, splashing during manual pouring is also reduced, the safety and environmental protection of the field environment are improved, the labor intensity of workers is also reduced, and the production efficiency is improved. The detection precision of the pH value is improved.

Description

Technical Field

[0001] This utility model relates to the field of hot-dip galvanized square and rectangular tube production technology, and in particular to an automatic passivation solution addition device. Background Technology

[0002] During the production of hot-dip galvanized square and rectangular tubes, a passivation solution is needed to passivate the zinc layer on the surface of the hot-dip galvanized tubes after production. This prevents the pure zinc layer on the surface of the steel tube from reacting directly with oxygen in the air, causing oxidation and corrosion, and slowing down its corrosion resistance.

[0003] The passivation process is then required. Currently, most companies manually add the passivation solution, and the pH value of the passivation solution is also a process control point. It is usually tested manually using filter paper. Manual addition is done many times a day, which is labor-intensive and unsafe as it involves direct contact with the passivation solution. It is impossible to automatically add the passivation solution or automatically measure the pH value of the passivation solution. Therefore, this utility model proposes an automatic passivation solution addition device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an automatic passivation solution addition device, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic passivation liquid adding device, including a passivation liquid circulation tank, a support leg provided at the bottom of the passivation liquid circulation tank, a filter baffle provided inside the passivation liquid circulation tank, a liquid outlet installed on the outside of the passivation liquid circulation tank, a pH value detection sensor and a connecting pipe installed on the outside of the passivation liquid circulation tank, a liquid level detection pipe provided at the upper end of the connecting pipe, a traction plate provided between the liquid level detection pipe and the passivation liquid circulation tank, and a high liquid level sensor and a low liquid level sensor installed on the outside of the liquid level detection pipe;

[0006] A magnetic pump and a control cabinet are installed on the outside of the passivation liquid circulation tank. The output end of the magnetic pump is connected to a drain pipe, and a display screen and a warning light are installed on the outside of the control cabinet.

[0007] As a further technical solution of this utility model, the passivation liquid circulation tank and the support leg are fixedly connected, the number of the support leg is four sets and they are arranged in an array, the upper end of the filter baffle is provided with several sets of through holes, and the filter baffle is a disc structure.

[0008] As a further technical solution of this utility model, the liquid outlet is connected to the passivation liquid circulation tank, a valve is installed at the upper end of the liquid outlet, and an installation hole adapted to the pH value detection sensor is opened on the outside of the passivation liquid circulation tank. The pH value detection sensor is sealed and waterproofed to the installation hole.

[0009] As a further technical solution of this utility model, the connecting pipe is connected to the liquid level detection pipe, a valve is installed at the end of the liquid level detection pipe, the traction plate is welded to the passivation liquid circulation tank, the traction plate is snapped to the liquid level detection pipe, the liquid level detection pipe is a hollow cylindrical structure, and the liquid level detection pipe is made of transparent material.

[0010] As a further technical solution of this utility model, the high liquid level sensor and the low liquid level sensor are both fixedly installed on the outside of the liquid level detection tube, the output end of the magnetic pump is connected to the drain pipe, and the end of the drain pipe is inserted into the inside of the passivation liquid circulation tank.

[0011] As a further technical solution of this utility model, the control cabinet is equipped with a PLC controller and a control switch. The magnetic pump is electrically connected to the PLC controller, the pH value detection sensor is electrically connected to the PLC controller, the display screen is electrically connected to the PLC controller, the warning light is electrically connected to the PLC controller, and the warning light is connected to the control cabinet by bolts.

[0012] This invention provides an automatic passivation solution addition device. Compared with the prior art, it has the following advantages:

[0013] This design incorporates an automatic passivation solution addition device. Utilizing a pH sensor, level detection tube, high-level sensor, low-level sensor, magnetic pump, and control cabinet, it works by establishing a communicating vessel between the connecting pipe and the level detection tube and the passivation solution circulation tank. The high-level and low-level sensors monitor the highest and lowest levels inside the level detection tube in real time. When the lowest level is reached, the magnetic pump automatically draws passivation solution and adds it to the circulation tank; when the highest level is reached, the magnetic pump stops. The pH sensor monitors the pH value in real time and displays it on a screen. Employees can simply record the values ​​periodically. This convenient, fast, and accurate device eliminates the need for manual addition of passivation solution, reducing direct contact with the solution and minimizing splashing during manual pouring. This improves the safety and environmental friendliness of the work environment, reduces labor intensity, and enhances the accuracy of pH detection. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of the automatic passivation solution addition device;

[0015] Figure 2 Front view of the automatic passivation fluid addition device;

[0016] Figure 3 A schematic diagram of the installation of the filter baffle in the automatic passivation solution addition device.

[0017] In the diagram: 1. Passivation solution circulation tank; 2. Support leg; 3. Filter baffle; 4. Liquid outlet; 5. pH value sensor; 6. Connecting pipe; 7. Liquid level detection pipe; 8. Traction plate; 9. High liquid level sensor; 10. Low liquid level sensor; 11. Magnetic pump; 12. Drain pipe; 13. Control cabinet; 14. Display screen; 15. Warning light. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution for an automatic passivation liquid addition device: the automatic passivation liquid addition device includes a passivation liquid circulation tank 1, a support leg 2 at the bottom of the passivation liquid circulation tank 1, a filter baffle 3 inside the passivation liquid circulation tank 1, an outlet 4 on the outside of the passivation liquid circulation tank 1, a pH value detection sensor 5 and a connecting pipe 6 on the outside of the passivation liquid circulation tank 1, a liquid level detection pipe 7 at the upper end of the connecting pipe 6, a traction plate 8 between the liquid level detection pipe 7 and the passivation liquid circulation tank 1, and a high liquid level sensor 9 and a low liquid level sensor 10 on the outside of the liquid level detection pipe 7;

[0020] The passivation liquid circulation tank 1 is equipped with a magnetic pump 11 and a control cabinet 13 on its outer side. The output end of the magnetic pump 11 is connected to a drain pipe 12. The control cabinet 13 is equipped with a display screen 14 and a warning light 15 on its outer side.

[0021] like Figure 1-3 As shown, the passivation liquid circulation tank 1 and the support legs 2 are fixedly connected. There are four sets of support legs 2 arranged in an array. The upper end of the filter baffle 3 is provided with several sets of through holes. The filter baffle 3 is a disc structure, which is conducive to supporting the passivation liquid circulation tank 1 and filtering impurities from the passivation liquid.

[0022] like Figure 1-3As shown, the outlet 4 is connected to the passivation liquid circulation tank 1. A valve is installed at the upper end of the outlet 4. An installation hole adapted to the pH value detection sensor 5 is opened on the outside of the passivation liquid circulation tank 1. The pH value detection sensor 5 is sealed and waterproofed to the installation hole. The connecting pipe 6 is connected to the liquid level detection pipe 7. A valve is installed at the end of the liquid level detection pipe 7. The traction plate 8 is welded to the passivation liquid circulation tank 1. The traction plate 8 is snapped to the liquid level detection pipe 7. The liquid level detection pipe 7 is a hollow cylindrical structure and is made of transparent material. The high liquid level sensor 9 and the low liquid level sensor 10 are both fixedly installed on the outside of the liquid level detection pipe 7. The output end of the magnetic pump 11 is connected to the drain pipe 12. The end of the drain pipe 12 is inserted into the inside of the passivation liquid circulation tank 1, which is conducive to the detection of the high and low liquid levels of the passivation liquid and allows for automatic addition of passivation liquid.

[0023] like Figure 1 As shown, the control cabinet 13 is equipped with a PLC controller and control switches. The magnetic pump 11 is electrically connected to the PLC controller, the pH value detection sensor 5 is electrically connected to the PLC controller, the display screen 14 is electrically connected to the PLC controller, and the warning light 15 is electrically connected to the PLC controller. The warning light 15 is connected to the control cabinet 13 by bolts, which facilitates the control of the addition of passivation liquid in the passivation liquid circulation tank 1 and the detection of the pH value of the passivation liquid.

[0024] The working principle of this utility model is as follows: During the use of the device, the communication pipe 6 and the liquid level detection pipe 7 form a communicating vessel with the passivation liquid circulation tank 1. The high liquid level sensor 9 and the low liquid level sensor 10 monitor the highest and lowest liquid levels inside the liquid level detection pipe 7 in real time. When the lowest point is reached, the feedback is sent to the PLC controller, which then controls the magnetic pump 11 to automatically draw the passivation liquid and add it to the passivation liquid circulation tank 1 through the drain pipe 12. When the highest point is reached, the feedback is sent to the PLC controller, which controls the magnetic pump 11 to stop running, thereby stopping the addition of passivation liquid. During the addition of passivation liquid, the pH value is monitored in real time by the pH value detection sensor 5 and fed back to the PLC controller. The pH value is displayed on the display screen 14, and employees can record the value at regular intervals. This is convenient, fast, and accurate, eliminating the need for manual addition of passivation liquid. It reduces direct contact with the passivation liquid and also reduces splashing during manual pouring, improving the safety and environmental protection of the site environment, reducing the labor intensity of manual labor, and improving the detection accuracy of pH value.

[0025] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. An automatic passivation solution addition device, comprising a passivation solution circulation tank (1), characterized in that, The bottom of the passivation liquid circulation tank (1) is provided with a support leg (2), the inside of the passivation liquid circulation tank (1) is provided with a filter baffle (3), the outside of the passivation liquid circulation tank (1) is provided with a liquid outlet (4), the outside of the passivation liquid circulation tank (1) is provided with a pH value detection sensor (5) and a connecting pipe (6), the upper end of the connecting pipe (6) is provided with a liquid level detection pipe (7), a traction plate (8) is provided between the liquid level detection pipe (7) and the passivation liquid circulation tank (1), and a high liquid level sensor (9) and a low liquid level sensor (10) are installed on the outside of the liquid level detection pipe (7). A magnetic pump (11) and a control cabinet (13) are provided on the outside of the passivation liquid circulation tank (1). The output end of the magnetic pump (11) is connected to a drain pipe (12). A display screen (14) and a warning light (15) are provided on the outside of the control cabinet (13).

2. The automatic passivation solution addition device according to claim 1, characterized in that, The passivation liquid circulation tank (1) is fixedly connected to the support leg (2). The support leg (2) consists of four sets arranged in an array. The upper end of the filter baffle (3) has several sets of through holes. The filter baffle (3) has a disc structure.

3. The automatic passivation solution addition device according to claim 1, characterized in that, The outlet (4) is connected to the passivation liquid circulation tank (1). A valve is installed at the upper end of the outlet (4). An installation hole adapted to the pH value detection sensor (5) is opened on the outside of the passivation liquid circulation tank (1). The pH value detection sensor (5) is sealed and waterproofed to the installation hole.

4. The automatic passivation solution addition device according to claim 1, characterized in that, The connecting pipe (6) is connected to the liquid level detection pipe (7). A valve is installed at the end of the liquid level detection pipe (7). The traction plate (8) is welded to the passivation liquid circulation tank (1). The traction plate (8) is snapped to the liquid level detection pipe (7). The liquid level detection pipe (7) is a hollow cylindrical structure and is made of transparent material.

5. The automatic passivation solution addition device according to claim 1, characterized in that, The high liquid level sensor (9) and the low liquid level sensor (10) are both fixedly installed on the outside of the liquid level detection tube (7). The output end of the magnetic pump (11) is connected to the drain pipe (12). The end of the drain pipe (12) is inserted into the inside of the passivation liquid circulation tank (1).

6. The automatic passivation solution addition device according to claim 1, characterized in that, The control cabinet (13) is equipped with a PLC controller and a control switch. The magnetic pump (11) is electrically connected to the PLC controller. The pH value detection sensor (5) is electrically connected to the PLC controller. The display screen (14) is electrically connected to the PLC controller. The warning light (15) is electrically connected to the PLC controller. The warning light (15) is connected to the control cabinet (13) by bolts.

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