Device for automatically controlling water level of sewage

Abstract

The utility model relates to an automatic water level control device for sewage. The automatic water level control device comprises a tank body, a laser transmitter, a laser receiver unit and a lifting mechanism, the laser transmitter is mounted on one side of the tank body through the lifting mechanism, and the laser receiving unit is fixedly mounted on the other side of the tank body; the laser transmitter can be driven by a lifting mechanism to ascend and descend in the vertical direction, and an upper stop position and a lower stop position are formed at the two ends of the lifting stroke respectively. When the laser transmitter is located at the upper stop position or the lower stop position, the laser receiving unit can receive the laser transmitted by the laser transmitter. The utility model has the beneficial effects that the automatic induction of the water level is realized, the liquid can be automatically controlled to stop being input or added, the accuracy is high, and the safety, stability and economy of the sewage treatment process are ensured.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology in circuit board manufacturing, specifically to an automatic wastewater level control device. Background Technology

[0002] The printed circuit board (PCB) manufacturing process is complex, and its wastewater generates diverse pollutants, primarily including heavy metal ions such as copper and nickel, high-molecular-weight organic compounds, and complexing agents. The PCB wastewater is varied and complex in composition; without appropriate and effective treatment processes to ensure it consistently meets standards, it will cause serious environmental pollution. Therefore, considering the different characteristics of PCB production wastewater, it is essential to separate different types of wastewater and employ different treatment methods.

[0003] In various wastewater treatment methods, pools and tanks are ubiquitous. Some are used to provide chemicals, such as alkali or acid solutions; others are used for recycling and storage, such as storage tanks; and still others generate physical and chemical reactions to purify wastewater, such as PAM tanks. Although their functions differ, they all require a suitable water level so that the pool or tank is neither empty nor overflowing, thereby ensuring the safety, stability, and economy of the treatment process. However, existing water level control methods mostly use float level gauges and float valves. But float level gauges and float valves may be blocked or entangled by covers or other obstructions, leading to malfunction of level control and liquid overflow from the pool or tank, causing environmental pollution.

[0004] Therefore, an automatic sewage level control device is proposed, which can automatically sense and control the stopping or adding of liquid, and has high accuracy, which helps to ensure the safety, stability and economy of the sewage treatment process. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic sewage level control device that uses infrared laser to achieve automatic sensing and can automatically control the stopping or adding of liquid. It is highly accurate and helps to ensure the safety, stability and economy of the sewage treatment process.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] An automatic wastewater level control device includes a tank, a laser transmitter, a laser receiver unit, and a lifting mechanism. The laser transmitter is mounted on one side of the tank via the lifting mechanism, and the laser receiver unit is fixedly mounted on the other side of the tank. The laser transmitter can be driven to move vertically up and down by the lifting mechanism, forming an upper stop position and a lower stop position at the two ends of its lifting stroke. When the laser transmitter is at the upper stop position or the lower stop position, the laser receiver unit can receive the laser emitted by the laser transmitter. Thus, this solution can achieve automatic water level sensing through infrared laser lines.

[0008] In a preferred embodiment of this solution, the laser receiving unit includes a laser receiver one and a laser receiver two. When the laser emitter is in the upper stop position, laser receiver one can receive the laser emitted by the laser emitter; when the laser emitter is in the lower stop position, laser receiver two can receive the laser emitted by the laser emitter. Laser receiver one and laser receiver two can be used as sensing components for the upper and lower limits of the liquid level, respectively.

[0009] In a preferred embodiment of this solution, laser receiver one and laser receiver two are arranged in parallel, and a light-shielding plate is provided between laser receiver one and laser receiver two. The design of the light-shielding plate is more conducive to the accurate transmission of infrared laser rays.

[0010] In a preferred embodiment of this solution, the automatic sewage level control device further includes a controller; the tank is provided with an inlet pipe, and an inlet pump is provided on the inlet pipe; the lifting mechanism, the inlet pump, laser receiver one, and laser receiver two are respectively electrically connected to the controller.

[0011] When laser receiver 1 receives the laser emitted by the laser transmitter, the liquid level in the tank reaches the upper limit. Laser receiver 1 sends a signal to the controller, which then controls the liquid pump to shut down and drives the laser transmitter to move to the lower stop position. When laser receiver 2 receives the laser emitted by the laser transmitter, the liquid level in the tank reaches the lower limit. Laser receiver 2 sends a signal to the controller, which then controls the liquid pump to start. Thus, this solution can control the water level in the tank to always be between the upper and lower limits.

[0012] In a preferred embodiment of this solution, the bottom of the pool is also provided with a drain pipe and four support legs; the drain pipe is provided with a drain valve.

[0013] In a preferred embodiment of this solution, the automatic sewage level control device further includes an installation box; the right side of the installation box is provided with a strip-shaped interface, the right side of the strip-shaped interface is provided with a glass window, and the left side of the tank body is provided with a strip-shaped opening corresponding to the strip-shaped interface, the strip-shaped interface and the strip-shaped opening are sealed together; the lifting mechanism includes a lifting rod, and the laser emitter is installed in the installation box in a way that allows it to be lifted and lowered via the lifting rod.

[0014] In a preferred embodiment of this solution, a sealing gasket is also provided between the mounting box and the left side of the pool body to prevent liquid from entering the mounting box.

[0015] In a preferred embodiment of this solution, the lifting mechanism includes a motor; the motor is mounted on the left side wall of the mounting box, the output end of the motor is vertically upward, and the output end of the motor is connected to a screw, one end of which is threaded onto the screw, and the other end of the screw is fixedly connected to the top of the lifting rod; the top of the mounting box is provided with a cover, and a guide cylinder is fixedly provided in the middle of the cover, and the lifting rod is slidably fitted into the guide cylinder.

[0016] In a preferred embodiment of this solution, the lifting mechanism further includes a C-shaped plate. The bottom of the C-shaped plate is fixedly installed on the left side wall of the mounting box, the motor is installed on the bottom horizontal plate of the C-shaped plate, and the top of the screw is rotatably installed on the top plate of the C-shaped plate. The design of the C-shaped plate facilitates the installation of the screw and also provides some protection for the screw.

[0017] In a preferred embodiment of this solution, the lifting mechanism includes a lifting cylinder installed on the left side wall of the mounting box. The lifting cylinder has its extension and retraction ends vertically upward, and one end of a rod is connected to the extension and retraction end of the lifting cylinder. The other end of the rod is connected to the top of the lifting rod.

[0018] The beneficial effects of this utility model are:

[0019] This solution features a retractable laser emitter on the left side of the tank, and laser receivers 1 and 2 positioned vertically on the right side. Both receivers, along with the liquid pump that supplies liquid to the tank, are electrically connected to the controller. When laser receiver 1 receives the laser emitted by the emitter, the liquid level in the tank reaches the upper limit. Receiver 1 then sends a signal to the controller, which shuts off or reduces the liquid pump's position and lowers the laser emitter to its lower dwell position. When laser receiver 2 receives the laser emitted by the emitter, the liquid level in the tank reaches the lower limit. The controller then starts or increases the liquid pump's operation. This solution effectively maintains the water level in the tank between the upper and lower limits. Compared to existing float valves, this direct laser-sensing method has a lower probability of failure, better accuracy, and is more conducive to ensuring the safety, stability, and economy of the wastewater treatment process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the lifting mechanism of Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram illustrating the principle of this utility model;

[0023] Figure 4 This is a structural schematic diagram of Embodiment 2 of this utility model. Detailed Implementation

[0024] The technical solution of this utility model is described in further detail below with reference to the accompanying drawings, but the scope of protection of this utility model is not limited to the following description.

[0025] Example 1

[0026] like Figure 1 , Figure 2 As shown, an automatic sewage level control device includes a tank body 1, a laser transmitter 2, a laser receiver unit, and a lifting mechanism that can adjust the vertical position of the laser transmitter 2. The laser transmitter 2 is located on the left side of the tank body 1, and the laser receiver unit is installed on the right side of the tank body 1. When the laser transmitter 2 is driven to the upper or lower stop position by the lifting mechanism, the laser receiver unit can receive the laser emitted by the laser transmitter 2. When the laser signal is detected at the upper or lower stop position, the laser receiver unit can send a signal to indicate that the liquid in the tank body has reached the upper or lower limit of the liquid level, thereby realizing automatic sensing and detection of the liquid level.

[0027] refer to Figure 3 As shown, in this embodiment, the laser receiving unit includes laser receiver 3 and laser receiver 4. The automatic sewage level control device also includes a controller and a lifting mechanism. Laser receiver 3, laser receiver 4, and the liquid pump on the inlet pipe are electrically connected to the controller. When laser receiver 3 receives the laser emitted by laser transmitter 2, the liquid level in the tank 1 reaches the upper limit. Laser receiver 3 sends a signal to the controller, which controls the liquid pump to shut down and drives laser transmitter 2 to move down to the lower stop position. When laser receiver 4 receives the laser emitted by laser transmitter 2, the liquid level in the tank 1 reaches the lower limit. Laser receiver 4 sends a signal to the controller, which controls the liquid pump to start and laser transmitter 2 to reset to the upper stop position. Thus, this solution can control the water level in the tank 1 to always be between the upper and lower limits.

[0028] Further, refer to Figure 2 As shown, in this scheme, laser receiver 3 and laser receiver 4 are arranged in parallel, and a light shield 18 is provided between laser receiver 3 and laser receiver 4 to further ensure the accuracy of sensing.

[0029] refer to Figure 1 , Figure 2 As shown, in this embodiment, the laser emitter 2 is mounted in the mounting box 5 in a height-adjustable manner via the lifting rod 6; the mounting box 5 is installed on the left side of the pool body 1, and a strip-shaped interface 501 is provided on the right side of the mounting box 5. A strip-shaped opening is provided on the left side of the pool body 1 corresponding to the strip-shaped interface 501. The strip-shaped interface 501 and the strip-shaped opening are sealed together, and a glass window 502 is provided on the right side of the strip-shaped interface 501.

[0030] refer to Figure 2 As shown, in this embodiment, the lifting mechanism includes a motor 7; the motor 7 is installed on the left side wall of the mounting box 5, and the output end of the motor 7 is connected to a screw 8. One end of a crossbar 9 is threaded onto the screw 8, and the other end of the crossbar 9 is fixedly connected to the top of the lifting rod 6; the top of the mounting box 5 is provided with a cover 503, and a guide cylinder 10 is fixedly provided in the middle of the cover 503. The lifting rod 6 is slidably fitted into the guide cylinder 10.

[0031] In this embodiment, the lifting mechanism also includes a C-shaped plate 15. The bottom of the C-shaped plate 15 is fixedly installed on the left side wall of the mounting box 5, the motor 7 is installed on the bottom horizontal plate of the C-shaped plate 15, and the top of the screw 8 is rotatably installed on the top plate of the C-shaped plate 15.

[0032] Furthermore, in this embodiment, a sealing gasket 13 is provided between the mounting box 5 and the left side of the pool body 1, and a drain pipe 16 and four support feet 17 are provided at the bottom of the pool body 1; a drain valve is provided on the drain pipe 16.

[0033] Example 2

[0034] The only difference between this embodiment and Embodiment 1 is the structure of the lifting mechanism. (Refer to...) Figure 4 As shown, in this embodiment, the lifting mechanism includes a lifting cylinder 11 installed on the left side wall of the mounting box 5. The lifting cylinder 11 is vertically upward, and one end of the lifting cylinder 11 is connected to the lifting rod 12. The other end of the lifting rod 12 is connected to the top of the lifting rod 6. Thus, the vertical position of the laser emitter 2 can be adjusted by the extension and retraction of the lifting cylinder 11.

[0035] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A sewage automatic water level control device, characterized by: It comprises a cell body (1), a laser transmitter (2), a laser receiver unit, and a lifting mechanism; The laser transmitter (2) is installed on one side of the tank body (1) via a lifting mechanism, and the laser receiving unit is fixedly installed on the other side of the tank body (1); The laser emitter (2) can be driven by a lifting mechanism to rise and fall in a vertical direction, and an upper stop position and a lower stop position are formed at the two ends of the lifting stroke respectively; When the laser transmitter (2) is located at the upper stop position or the lower stop position, the laser receiving unit can receive the laser emitted by the laser transmitter (2).

2. The sewage automatic water level control device according to claim 1 is characterized by: The laser receiving unit comprises a laser receiver 1 (3) and a laser receiver 2 (4); When the laser transmitter (2) is located at the upper stop position, the laser receiver 1 (3) can receive the laser emitted by the laser transmitter (2); when the laser transmitter (2) is located at the lower stop position, the laser receiver 2 (4) can receive the laser emitted by the laser transmitter (2).

3. The automatic sewage water level control device according to claim 2 is characterized by: The laser receiver one (3) and the laser receiver two (4) are arranged in parallel, and a light shielding plate (18) is arranged between the laser receiver one (3) and the laser receiver two (4).

4. The sewage automatic water level control device according to claim 2 is characterized by: The sewage automatic water level control device also includes a controller; The tank body (1) is provided with a liquid inlet pipe, and the liquid inlet pipe is provided with a liquid adding pump; The lifting mechanism, the liquid adding pump, the laser receiver 1 (3) and the laser receiver 2 (4) are respectively connected to the controller by telecommunication.

5. The sewage automatic water level control device according to claim 2 is characterized by: The bottom of the pool body (1) is also provided with a drainage pipe (16) and four supporting legs (17); The liquid discharge pipe (16) is provided with a liquid discharge valve.

6. A sewage automatic water level control device according to any one of claims 1 to 5, characterized in that: The sewage automatic water level control device also includes an installation box (5); The installation box (5) is provided with a strip-shaped docking port (501) on the right side, a glass window (502) is provided on the right side of the strip-shaped docking port (501), and a strip-shaped opening is provided on the left side of the cell body (1) corresponding to the strip-shaped docking port (501), and the strip-shaped docking port (501) is in sealing cooperation with the strip-shaped opening; The lifting mechanism comprises a lifting rod (6), and the laser emitter (2) is installed in the installation box (5) in a lifting manner via the lifting rod (6).

7. The automatic sewage water level control device according to claim 6, characterized in that: A sealing gasket (13) is also provided between the installation box (5) and the left side surface of the pool body (1).

8. The sewage automatic water level control device according to claim 6, characterized in that: The lifting mechanism comprises a motor (7); The motor (7) is installed on the left side wall of the installation box (5), the output end of the motor (7) is vertically upward, and the output end of the motor (7) is transmission-connected with a screw rod (8), one end of a cross rod (9) is threadedly matched on the screw rod (8), and the other end of the cross rod (9) is fixedly connected to the top of the lifting rod (6); The top of the installation box (5) is provided with a cover body (503), the middle of the cover body (503) is fixedly provided with a guide cylinder (10), and the lifting rod (6) is slidably mounted in the guide cylinder (10) up and down.

9. The sewage automatic water level control device according to claim 8, characterized in that: The lifting mechanism also includes a C-shaped plate (15), the bottom of the C-shaped plate (15) is fixedly mounted on the left side wall of the installation box (5), the motor (7) is mounted on the bottom horizontal plate of the C-shaped plate (15), and the top of the screw rod (8) is rotatably mounted on the top plate of the C-shaped plate (15).

10. The sewage automatic water level control device according to claim 6, characterized in that: The lifting mechanism comprises a lifting cylinder (11) installed on the left side wall of the installation box (5), the lifting end of the lifting cylinder (11) is arranged vertically upward, and the lifting end of the lifting cylinder (11) is connected to one end of a rod (12), and the other end of the rod (12) is connected to the top of the lifting rod (6).

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