Flow meter flow automatic control device

Abstract

This utility model discloses an automatic flow control device for a flow meter, characterized by comprising a flow meter, a flow meter rotor, a water inlet pipe, a through-beam photoelectric switch assembly, an electric valve, and a main controller; the flow meter rotor is installed inside the flow meter; the water inlet pipe is installed at the bottom of the flow meter; the through-beam photoelectric switch assembly consists of two sets, an upper through-beam photoelectric switch assembly and a lower through-beam photoelectric switch assembly; the electric valve is installed on the water inlet pipe; and the main controller is connected to the upper through-beam photoelectric switch assembly, the lower through-beam photoelectric switch assembly, and the electric valve. Through this utility model, when the water pressure is unstable during the electrode foil production process, this device can automatically control the pure water flow rate of the flow meter within the process control range, preventing the conductivity of the bath solution from exceeding the process control requirements and ensuring the stability of production safety.

Description

Technical Field

[0001] This utility model belongs to the field of electrode foil manufacturing, and specifically relates to an automatic flow control device for flow meters. Background Technology

[0002] In the electrode foil production process, controlling the stable conductivity of the bath solution is one of the key factors in producing high-quality products. During production, the evaporation of the bath solution and the consumption of chemical raw materials need to be replenished in a timely manner to meet the production requirements for stable conductivity control. Currently, the conductivity of the bath solution is controlled by adding chemical raw materials at regular intervals, while simultaneously adding pure water using a flow meter to keep the conductivity within the process requirements range. However, the stable addition of pure water has a significant impact on the conductivity of the bath solution. Pure water is added using a rotor flow meter. When the water pressure is low, the rotor of the pure water flow meter will drop, resulting in insufficient pure water addition and causing the conductivity of the bath solution to exceed the process standard control range. Conversely, when the water pressure is high, the rotor of the pure water flow meter will rise, resulting in excessive pure water addition and causing the conductivity of the bath solution to fall below the process standard control range. Therefore, simply using a pure water flow meter to control the amount of pure water added is not a reliable method for consistently controlling the conductivity of the bath solution within the process standard requirements. Utility Model Content

[0003] To address the shortcomings of existing technologies that use pure water flow meters to control the addition of pure water, which make it difficult to stably control the conductivity of the bath solution within the process standard control range, this utility model provides an automatic flow meter flow control device that can automatically control the pure water flow rate of the flow meter within the process control range and prevent the conductivity of the bath solution from exceeding the process standard control requirements.

[0004] This utility model is achieved through the following technical solution:

[0005] An automatic flow control device for a flow meter includes a flow meter, a flow meter rotor, an inlet pipe, a through-beam photoelectric switch assembly, an electric valve, and a main controller. The flow meter rotor is installed inside the flow meter. The inlet pipe is installed at the bottom of the flow meter. There are two through-beam photoelectric switch assemblies: an upper through-beam photoelectric switch assembly installed at the top of the flow meter and a lower through-beam photoelectric switch assembly installed at the bottom of the flow meter. The electric valve is installed on the inlet pipe. The main controller is connected to the upper through-beam photoelectric switch assembly, the lower through-beam photoelectric switch assembly, and the electric valve.

[0006] Furthermore, the bottom of the flow meter also includes a water inlet pipe II; the water inlet pipe II is equipped with an electric valve II connected to the main controller.

[0007] The through-beam photoelectric switch assembly consists of a laser emitter and a receiver. The laser emitter emits a laser beam, while the laser receiver receives the laser beam. When the laser beam is blocked or interrupted, the receiver cannot receive the laser signal, thus triggering an alarm. The upper through-beam photoelectric switch assembly is installed on both sides of the flowmeter, aligning the laser beam with the upper range position required by the process standard control of the flowmeter rotor. The lower through-beam photoelectric switch assembly is installed on both sides of the flowmeter, aligning the laser beam with the lower range position required by the process standard control of the flowmeter rotor. The overall control is a single-chip microcomputer control circuit, integrating the controllers for the electric valve and the through-beam photoelectric switches, and is powered by an external power supply.

[0008] According to the process standard control requirements, the pure water flow meter is set with a minimum and maximum range for pure water addition. When the water pressure is low during production, and the flow meter rotor descends to the minimum range position, the laser beam of the lower through-beam photoelectric switch group is blocked. The main controller receives the signal that the lower through-beam photoelectric switch group is blocked and controls the electric valve to increase the valve opening, thereby increasing the pure water flow of the flow meter and causing the flow meter rotor to rise back to the range controlled by the process standard.

[0009] When the water pressure is too high during production, and the flow meter rotor rises to the highest range position, the laser beam of the upper through-beam photoelectric switch group is blocked. The main controller receives the signal that the upper liquid level laser group is blocked and controls the electric valve to reduce the valve opening, so that the pure water flow of the flow meter decreases and the flow meter rotor descends to the range of the process standard control.

[0010] The beneficial effects of this utility model are:

[0011] When the water pressure is unstable during production, the main controller controls the opening of the electric valve by receiving signals from the through-beam photoelectric switch group. This achieves the purpose of automatically controlling the pure water flow rate of the flow meter within the process control range, preventing the conductivity of the tank liquid from exceeding the process control requirements. Simultaneously, it can reduce manpower, save resources, and improve production efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0014] In the diagram: Flow meter 1, Flow meter rotor 2, Inlet pipe 3, Inlet pipe II 31, Upper through-beam photoelectric switch group 41, Lower through-beam photoelectric switch group 42, Electric valve 5, Electric valve II 51, Main controller 6. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings. Example

[0016] like Figure 1 As shown, an automatic flow control device for a flow meter includes a flow meter 1, a flow meter rotor 2, an inlet pipe 3, a through-beam photoelectric switch group 4, an electric valve 5, and a main controller 6. The flow meter rotor 2 is installed inside the flow meter 1. The inlet pipe 3 is installed at the bottom of the flow meter 1. The through-beam photoelectric switch group 4 has two sets: an upper through-beam photoelectric switch group 41 installed at the top of the flow meter 1 and a lower through-beam photoelectric switch group 42 installed at the bottom of the flow meter 1. The electric valve 5 is installed on the inlet pipe 3. The main controller 6 is connected to the upper through-beam photoelectric switch group 41, the lower through-beam photoelectric switch group 42, and the electric valve 5.

[0017] According to the process standard control requirements, the pure water flow meter 1 is set with a minimum and maximum range for pure water addition. When the water pressure is low during production, and the flow meter rotor 2 descends to the minimum range position, the laser beam of the lower through-beam photoelectric switch group 42 is blocked. The main controller 6 receives the signal that the lower through-beam photoelectric switch group 42 is blocked and controls the electric valve 5 to increase the valve opening, thereby increasing the pure water flow of the flow meter 1 and causing the flow meter rotor 2 to rise to the range within the process standard control range.

[0018] When the water pressure is too high during the production process, and the flow meter rotor 2 rises to the highest range position, the laser beam of the upper through-beam photoelectric switch group 41 is blocked. The main controller 6 receives the signal that the upper through-beam photoelectric switch group 41 is blocked and controls the electric valve 5 to reduce the valve opening, so that the pure water flow of the flow meter 1 is reduced and the flow meter rotor 2 falls to the range of the process standard control range. Example

[0019] The difference between this embodiment and Embodiment 1 is that the bottom of the flow meter 1 further includes a water inlet pipe II31; the water inlet pipe II31 is equipped with an electric valve II51 connected to the main controller 6. By setting up dual channels for pure water flow control, production efficiency is improved.

Claims

1. An automatic flow control device for a flow meter, characterized in that: The system includes a flow meter (1), a flow meter rotor (2), an inlet pipe (3), a through-beam photoelectric switch group (4), an electric valve (5), and a main controller (6). The flow meter rotor (2) is installed inside the flow meter (1). The inlet pipe (3) is installed at the bottom of the flow meter (1). The through-beam photoelectric switch group (4) has two sets, namely an upper through-beam photoelectric switch group (41) installed at the top of the flow meter (1) and a lower through-beam photoelectric switch group (42) installed at the bottom of the flow meter (1). The electric valve (5) is installed on the inlet pipe (3). The main controller (6) is connected to the upper through-beam photoelectric switch group (41), the lower through-beam photoelectric switch group (42), and the electric valve (5).

2. The automatic flow control device for a flow meter according to claim 1, characterized in that: The flow meter (1) also includes an inlet pipe II (31) at the bottom; the inlet pipe II (31) is equipped with an electric valve II (51) connected to the main controller (6).

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