Gas low-pressure alarm device for aluminum processing and refining

Abstract

The utility model relates to a gas low pressure alarm device for aluminum processing refining, which comprises an argon pipeline, a flow meter and a pressure gauge are arranged on the argon pipeline and connected with a controller, the controller comprises an MCU chip and a driving circuit, the input end of the MCU chip is connected with the flow meter and the pressure gauge, and the output end of the MCU chip is connected with the driving circuit. The output end of the MCU chip is connected with the driving circuit, the driving circuit is electrically connected with an alarm module, and the alarm module is connected with a power supply through the driving circuit to form a loop; the MCU chip is provided with a communication module, and the MCU chip is connected with an upper computer through the communication module; the controller is provided with an electric box, the argon pipeline penetrates through the electric box, and the flow meter, the pressure gauge and the controller are arranged in the electric box. The flow meter and the pressure gauge are arranged on the argon pipeline to detect the flow and the pressure of argon, and the controller and the alarm module are combined, so that a hardware basis is provided for flow and low-pressure alarm.

Description

Technical Field

[0001] The utility model belongs to the field of aluminum processing, and particularly relates to a gas low-pressure alarm device for aluminum processing and refining. Background Technique

[0002] The refining of molten aluminum is one of the important steps in aluminum processing. Its purpose is to remove impurities in the molten aluminum, including gases, oxides, metal impurities, non-metal impurities, etc. Only through refining can the performance of aluminum materials be guaranteed, so as to meet the high-quality requirements of aluminum materials in industries, construction and other fields. At present, during the operation of powder injection refining personnel, problems such as low argon pressure and small flow rate caused by negligence will result in unqualified refining quality, and there are potential hidden dangers in product quality, which are extremely likely to cause quality accidents.

[0003] Therefore, it is necessary to detect the flow rate and pressure of argon through a detection device, and through an alarm means, the staff can adjust the flow rate and pressure of argon in time to make it suitable for the refining of molten aluminum. Summary of the Invention

[0004] The utility model provides a gas low-pressure alarm device for aluminum processing and refining to solve the problem that it is not easy for operators to detect when the argon pressure is low and the flow rate is small during the refining of molten aluminum. A flow meter and a pressure gauge are arranged on the argon gas pipeline to detect the flow rate and pressure of argon, and combined with a controller and an alarm module, it provides a hardware basis for flow rate and low-pressure alarm.

[0005] In order to achieve the above purpose, the utility model provides a gas low-pressure alarm device for aluminum processing and refining, including an argon gas pipeline, a flow meter and a pressure gauge are arranged on the argon gas pipeline, the flow meter and the pressure gauge are connected to a controller, the controller includes an MCU chip and a driving circuit, the input end of the MCU chip is connected to the flow meter and the pressure gauge, the output end of the MCU chip is connected to the driving circuit, the driving circuit is electrically connected to an alarm module, and the alarm module forms a loop through the driving circuit and is connected to a power supply;

[0006] The MCU chip is provided with a communication module, and the MCU chip is connected to a host computer through the communication module;

[0007] The controller is provided with an electric box, the argon gas pipeline passes through the electric box, and the flow meter, the pressure gauge and the controller are arranged inside the electric box.

[0008] Further, an AD converter is connected between the output ends of the flow meter and the pressure gauge and the input end of the MCU chip. The setting of the AD converter improves the accuracy of analog-to-digital conversion.

[0009] The communication module includes one or a combination of more than one of an RS232 module, an Ethernet module, a WiFi module, a LoRa module, and an RS484 module.

[0010] Furthermore, the driving circuit includes a MOS transistor driving circuit and an optocoupler driving circuit;

[0011] The alarm module includes a buzzer and an alarm light. The buzzer is electrically connected to the MOS transistor driving circuit, and the alarm light is electrically connected to the optocoupler driving circuit.

[0012] The MOS transistor driving circuit and the optocoupler driving circuit are provided to realize the on / off control of the buzzer and the alarm light. The G pole of the MOS transistor driving circuit is connected to the output end of the MCU chip, and the output end of the MCU chip is also connected to the input end of the optocoupler driving circuit. The buzzer and the alarm light are controlled by the MCU chip for on / off.

[0013] Furthermore, the electric box is a rectangular box structure with a hollow interior and an open side. A box door is hinged at the open position of the electric box, and a circular through hole is provided on one side of the electric box. The argon gas pipeline passes through the circular through hole.

[0014] The electric box is provided to protect the flowmeter, the pressure gauge and the controller.

[0015] By the above technical solutions, the beneficial effects of the present utility model are as follows:

[0016] The present utility model provides a hardware basis for realizing argon gas flow and low-pressure alarm. A flowmeter and a pressure gauge are provided. The flowmeter and the pressure gauge are connected to a controller, and the controller includes an MCU chip and a driving circuit. The driving circuit is electrically connected to an alarm module. During operation, the flowmeter and the pressure gauge detect the flow and pressure in the argon gas pipeline in real time. In combination with the MCU chip and the driving circuit, the MCU chip makes the alarm module work through the driving circuit. Thus, an alarm is given when the flow or pressure does not meet the production requirements, and the staff can make timely adjustments to avoid the problem of unqualified refining quality. In addition, the structure of this device is simple, and the circuit structure is simple by adopting an embedded system, which is convenient for configuration. Description of the Drawings

[0017] Figure 1 It is a circuit diagram of a gas low-pressure alarm device for aluminum processing and refining of the present utility model;

[0018] Figure 2 It is a structural diagram of a gas low-pressure alarm device for aluminum processing and refining of the present utility model.

[0019] Reference numerals in the drawings: 1 is an argon gas pipeline, 2 is a flowmeter, 3 is a pressure gauge, 5 is an MCU chip, 6 is a driving circuit, 7 is an alarm module, 8 is a communication module, 9 is an electric box, and 10 is an AD converter. Detailed Embodiments

[0020] The present utility model will be further described below in conjunction with the drawings and the detailed embodiments:

[0021] Example 1

[0022] As Figures 1-2 shown, a gas low-pressure alarm device for aluminum processing and refining includes an argon gas pipeline 1, a flow meter 2 and a pressure gauge 3 are arranged on the argon gas pipeline 1, the flow meter 2 and the pressure gauge 3 are connected to a controller, the controller includes an MCU chip 5 and a drive circuit 6, the input end of the MCU chip 5 is connected to the flow meter 2 and the pressure gauge 3, the output end of the MCU chip 5 is connected to the drive circuit 6, the drive circuit 6 is electrically connected to an alarm module 7, and the alarm module 7 forms a loop through the drive circuit 6 and is connected to a power supply;

[0023] The MCU chip 5 is provided with a communication module 8, and the MCU chip 5 is connected to a host computer through the communication module 8;

[0024] The controller is provided with an electric box 9, the argon gas pipeline 1 passes through the electric box 9, and the flow meter 2, the pressure gauge 3 and the controller are arranged inside the electric box 9.

[0025] An AD converter 10 is connected between the output ends of the flow meter 2 and the pressure gauge 3 and the input end of the MCU chip 5.

[0026] The communication module 8 includes one or a combination of an RS232 module, an Ethernet module, a WiFi module, a LoRa module, and an RS484 module.

[0027] The drive circuit 6 includes a MOS tube drive circuit and an optocoupler drive circuit;

[0028] The alarm module 7 includes a buzzer and an alarm lamp, the buzzer is electrically connected to the MOS tube drive circuit, the alarm lamp is electrically connected to the optocoupler drive circuit, and the electric box 9 is a rectangular box structure with a hollow interior and an open side, a box door is hinged at the open position of the electric box 9, and a circular through hole is opened on one side of the electric box 9, and the argon gas pipeline 1 passes through the circular through hole.

[0029] In this embodiment, the MCU chip 5 is selected as an STM32 type single-chip microcomputer, the flow meter 2 is an electromagnetic flow meter connected to the argon gas pipeline 1 through a flange, and the pressure gauge 3 is connected to the argon gas pipeline 1 through a flange. The AD converter 10 is an ADC0808 chip, the communication module 8 is an RS484 module, and the host computer is a PLC controller.

[0030] In order to achieve accurate judgment, a pressure threshold and a flow threshold of the argon gas pipeline 1 are set in this embodiment.

[0031] During operation, the flowmeter 2 and the pressure gauge 3 detect the flow value and the pressure value of the argon gas pipeline 1 in real time. The flowmeter 2 and the pressure gauge 3 transmit the detection signals to the AD converter 10. After analog-to-digital conversion, the digital signals are received by the MCU chip 5. The MCU chip 5 compares the detected values with the pressure threshold and the flow threshold. When the detected values are less than the pressure threshold and the flow threshold, the MCU chip 5 controls the MOS transistor drive circuit and the optocoupler drive circuit to conduct. The buzzer is powered on through the MOS transistor drive circuit to emit an audible alarm, and the warning light is powered on through the optocoupler drive circuit to emit a lamp alarm. The warning light and the buzzer are arranged outside the electrical box 9. The staff can quickly reach the scene according to the alarm.

[0032] At the same time, the MCU chip 5 transmits the judgment result structure to the PLC controller through the RS484 module, providing a working signal for the PLC controller to control the aluminum liquid refining.

[0033] The above-described embodiments are only the preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present invention patent shall be included within the scope of the present invention's patent application.

Claims

1. A low-pressure alarm device for aluminum processing and refining gas, comprising an argon gas pipeline (1), characterized in that: The argon gas pipeline (1) is provided with a flow meter (2) and a pressure gauge (3), the flow meter (2) and the pressure gauge (3) are connected to a controller (4), the controller (4) comprises an MCU chip (5) and a drive circuit (6), the input end of the MCU chip (5) is connected to the flow meter (2) and the pressure gauge (3), the output end of the MCU chip (5) is connected to the drive circuit (6), the drive circuit (6) is electrically connected to an alarm module (7), and the alarm module (7) is connected to a power supply through the drive circuit (6) to form a loop; The MCU chip (5) is provided with a communication module (8), and the MCU chip (5) is connected to a host computer via the communication module (8); The controller (4) is provided with an electrical box (9), the argon gas pipeline (1) passes through the electrical box (9), and the flow meter (2), the pressure gauge (3) and the controller (4) are arranged inside the electrical box (9).

2. A low-pressure alarm device for aluminum processing and refining gas according to claim 1, characterized in that: An AD converter (10) is connected between the output ends of the flow meter (2) and the pressure gauge (3) and the input end of the MCU chip (5).

3. A low-pressure alarm device for aluminum processing and refining gas according to claim 1, characterized in that: The communication module (8) comprises one or more combinations of an RS232 module, an Ethernet module, a WiFi module, a LoRa module, and an RS484 module.

4. A low-pressure alarm device for aluminum processing and refining gas according to claim 1, characterized in that: The driving circuit (6) comprises a MOS tube driving circuit and an optocoupler driving circuit; The alarm module (7) comprises a buzzer and an alarm light, the buzzer is electrically connected to the MOS tube drive circuit, and the alarm light is electrically connected to the optocoupler drive circuit.

5. A low-pressure alarm device for aluminum processing and refining gas according to claim 1, characterized in that: The electric box (9) is a rectangular box structure with a hollow interior and an open side. A box door is hingedly connected to the open position of the electric box (9). A circular through hole is opened on one side of the electric box (9), and the argon gas pipeline (1) passes through the circular through hole.

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