A cooling water flow monitoring and alarm device

Abstract

This utility model provides a cooling water flow monitoring and alarm device, relating to the field of flow monitoring technology. It includes: a main control module, a flow detection module, an alarm module, and a display module connected to the main control module, displaying the cooling water flow and equipment operating status in real time; and an execution control module connected to the main control module, which sends a control signal based on the cooling water flow determined by the main control module to drive the actuator. The result of the actuator's action is then detected again by the flow detection module, forming a closed-loop regulation to ensure stable cooling water flow. This utility model constructs a closed-loop feedback mechanism for flow regulation. The flow detection module collects the adjusted cooling water flow in real time and feeds the flow signal back to the main control module, enabling the main control module to further optimize the command output to the execution control module based on the actual adjustment effect, achieving dynamic cyclic control of detection, adjustment, re-detection, and re-adjustment.

Description

Technical Field

[0001] This utility model relates to the field of flow monitoring technology, specifically to a cooling water flow monitoring and alarm device. Background Technology

[0002] In industrial production, cooling water systems are core auxiliary systems that ensure the stable operation of mechanical equipment (such as motors, hydraulic devices, and precision machining equipment). They continuously circulate cooling water to remove heat generated during equipment operation, preventing performance degradation, component damage, or production interruptions due to overheating. With the increasing level of industrial automation, the requirements for the monitoring accuracy and stability of cooling water systems are rising. However, existing cooling water flow monitoring technologies still have key technical deficiencies, particularly in the closed-loop control capability of flow regulation. Current technologies typically integrate a flow sensor and a unidirectional regulation module: the flow sensor detects the flow in real time and transmits it to the control unit; the control unit, upon determining an abnormal flow, directly drives the actuator (such as a solenoid valve or variable frequency pump) to regulate the flow. This results in flow regulation only achieving unidirectional triggering, unable to optimize in real time based on the regulation effect, and difficult to ensure long-term stability of the flow within the normal range. Therefore, this invention proposes a cooling water flow monitoring and alarm device to improve the above problems. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of existing cooling water flow monitoring and alarm devices, which lack a closed-loop feedback mechanism, cannot optimize in real time according to the adjustment effect, and are difficult to ensure that the flow rate is stable within the normal range for a long time. Thus, a cooling water flow monitoring and alarm device is provided.

[0004] To address the aforementioned problems, this utility model provides a cooling water flow monitoring and alarm device, comprising: Main control module; A flow detection module is provided, which detects the cooling water flow rate in real time and transmits the flow signal to the main control module. An alarm module is connected to the main control module, and the alarm module implements local alarm based on the judgment of the main control module; The display module is connected to the main control module and displays the cooling water flow rate and the working status of the equipment in real time. An execution control module is connected to the main control module. Based on the main control module's determination of the cooling water flow rate, it sends a control signal to drive the actuator to move. The result of the actuator's action will be detected again by the flow detection module to form a closed-loop regulation and ensure stable cooling water flow.

[0005] Preferably, it further includes: a Bluetooth module and a power module, wherein the Bluetooth module is connected to the main control module for bidirectional communication to realize remote data interaction; The power module is used to supply power to the main control module, Bluetooth module, execution control module, and alarm module.

[0006] Preferably, the main control module uses an STM32F103C8T6 microcontroller. The STM32F103C8T6 microcontroller receives the flow signal from the flow detection module through its PA0 pin, sends a control signal to the execution control module through its PA1 pin, sends an alarm trigger signal to the alarm module through its PA2 pin, communicates bidirectionally with the Bluetooth module through its PA9 and PA10 pins, and connects to the execution module through its PC13, PC14, and PC15 pins to receive local execution instructions.

[0007] Preferably, the power supply module outputs VDD5V0 and VDD3V3 voltages, where VDD5V0 supplies power to the relay coils in the Bluetooth module and the execution control module, and VDD3V3 supplies power to the LED and buzzer driver circuits in the main control module and the alarm module.

[0008] Preferably, the execution control module includes an HK4100F-DCSV-SHG type relay, an S8550 type transistor Q6, and a current-limiting resistor R15; One end of the relay coil is connected to VDD3V3, and the other end is connected to the collector of the transistor Q6. The emitter of the transistor Q6 is grounded, and the base of the transistor Q6 is connected to the PA1 pin of the main control module through the current limiting resistor R15. The execution control module also includes a freewheeling diode D4 and an indicator circuit. The freewheeling diode D4 is connected in parallel across the coil of the relay. The indicator circuit consists of a resistor R12 and a red LED D8 connected in series and is connected in parallel with the coil of the relay.

[0009] Preferably, the Bluetooth module is connected to the main control module via a header, the RX pin of the header is connected to the MCU_TX1 pin of the main control module, the TX pin is connected to the MCU_RX1 pin of the main control module, the GND pin is grounded with the main control module, and the VCC pin is connected to VDD5V0.

[0010] Preferably, the alarm module includes an HNB09A05 type buzzer BZ1, an S8550 type transistor Q2, a current-limiting resistor R35, a red LED D15, and a resistor R34. The positive terminal of the buzzer BZ1 is connected to VDD3V3, the negative terminal is connected to the collector of the transistor Q2, the emitter of the transistor Q2 is grounded, and the base of the transistor Q2 is connected to the PA2 pin of the main control module through the current limiting resistor R35. The red LED D15 is connected in series with the resistor R34, with one end connected to VDD3V3 and the other end connected to the negative terminal of the buzzer BZ1.

[0011] Preferably, the execution module includes three key buttons, one end of each button is grounded, and the other end is connected to the PC13, PC14, and PC15 pins of the main control module, respectively.

[0012] The cooling water flow monitoring and alarm device provided by this utility model has the following beneficial effects: 1. This utility model constructs a closed-loop feedback mechanism for flow regulation. The flow detection module collects the cooling water flow rate after adjustment by the actuator in real time and feeds the flow signal back to the main control module. This enables the main control module to optimize the instruction output to the execution control module based on the actual adjustment effect, thereby realizing dynamic cyclic control of detection, adjustment, re-detection, and re-adjustment. 2. This utility model also relies on a closed-loop feedback mechanism, which allows the main control module to continuously fine-tune the action of the actuator according to the real-time changes in flow rate, avoiding over-adjustment or under-adjustment, and ensuring that the cooling water flow rate remains stable within the preset normal range for a long time, providing a reliable guarantee for equipment cooling. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the device structure of this utility model; Figure 2 This is a schematic diagram of the main control module structure of this utility model; Figure 3 This is a schematic diagram of the alarm module structure of this utility model; Figure 4 This is a schematic diagram of the execution control module structure of this utility model; Figure 5 This is a schematic diagram of the flow detection module structure of this utility model; Figure 6 This is a schematic diagram of the Bluetooth module structure of this utility model; Figure 7 This is a schematic diagram of the actuator structure of this utility model.

[0014] The reference numerals in the attached figures are as follows: 1. Main control module; 2. Execution control module; 3. Actuator; 4. Display module; 5. Alarm module; 6. Flow detection module; 7. Bluetooth module; 8. Power supply module. Detailed Implementation

[0015] like Figure 1-7 As shown, this utility model provides a cooling water flow monitoring and alarm device, which includes: The system comprises: a main control module 1; a flow detection module 6, which monitors the cooling water flow rate in real time and transmits the flow signal to the main control module 1; an alarm module 5, connected to the main control module 1, which performs local alarms based on the judgment of the main control module 1; a display module 4, connected to the main control module 1, which displays the cooling water flow rate and the operating status of the equipment in real time; and an execution control module 2, connected to the main control module 1, which sends control signals based on the cooling water flow rate determined by the main control module 1 to drive the actuator 3 to operate. The result of the actuator 3's operation is then detected again by the flow detection module 6, forming a closed-loop regulation to ensure stable cooling water flow. Figure 1-7 As shown, the modules work together to achieve real-time detection of cooling water flow, abnormal alarm, automatic adjustment and remote interaction. The display module 4 is connected to the main control module 1 and displays the cooling water flow value and equipment working status in real time. The main control module 1 sends the processed flow and status data to the display module 4 and presents it intuitively on the screen (LCD / OLED, etc.).

[0016] This application constructs a closed-loop feedback mechanism for flow regulation. The flow detection module 6 collects the cooling water flow rate after adjustment by the actuator 3 in real time and feeds the flow signal back to the main control module 1. This enables the main control module 1 to further optimize the instruction output to the execution control module 2 based on the actual adjustment effect, thereby realizing dynamic cyclic control of detection, adjustment, re-detection, and re-adjustment.

[0017] Based on a closed-loop feedback mechanism, the main control module 1 can continuously fine-tune the action of the actuator 3 according to the real-time changes in flow rate, avoiding over-adjustment or under-adjustment, and ensuring that the cooling water flow rate remains stable within the preset normal range for a long time, providing a reliable guarantee for equipment cooling.

[0018] This application's closed-loop control reduces the risk of abnormal equipment cooling caused by inaccurate flow regulation, effectively avoids problems such as equipment overheating and water waste caused by flow fluctuations, and improves the reliability of the cooling water system and even related production equipment.

[0019] In some implementations, such as Figure 1-7As shown, it also includes: a Bluetooth module 7 and a power module 8. The Bluetooth module 7 is connected to the main control module 1 for bidirectional communication to achieve remote data interaction; the Bluetooth module 7 enables remote interaction with external devices (mobile phones, computers), and is connected to the main control via a 2.54-1*4P header P2. The header RX is connected to the main control MCU_TX1, TX is connected to the main control MCU_RX1, GND is the common ground, and VCC is connected to VDD5V0; it communicates bidirectionally via the UART protocol—sending real-time flow and alarm status to external devices; and receiving control commands from external devices (…). (e.g., modifying the flow threshold) and forwarding it to the main controller; the power module 8 is used to power the main controller module 1, Bluetooth module 7, execution control module 2, and alarm module 5. The power module 8 powers each module and outputs VDD5V0 (5V) and VDD3V3 (3.3V). VDD5V0 powers the relay coils of Bluetooth module 7 and execution control module 2, etc.; VDD3V3 powers the LED / buzzer drive circuits of main controller module 1 and alarm module 5, etc. At the same time, ripple is filtered out through capacitor (C7) to ensure stable power supply.

[0020] In some implementations, such as Figure 1-7 As shown, the main control module 1 uses an STM32F103C8T6 microcontroller. The STM32F103C8T6 microcontroller receives the flow signal from the flow detection module 6 through its PA0 pin, sends a control signal to the execution control module 2 through its PA1 pin, sends an alarm trigger signal to the alarm module 5 through its PA2 pin, communicates bidirectionally with the Bluetooth module 7 through its PA9 and PA10 pins to achieve remote data interaction, and connects to the execution module through its PC13, PC14, and PC15 pins to receive local execution instructions, such as flow threshold adjustment.

[0021] In some implementations, such as Figure 1-7 As shown, the power module 8 outputs VDD5V0 and VDD3V3 voltages. VDD5V0 supplies power to the relay coils in the Bluetooth module 7 and the execution control module 2, and VDD3V3 supplies power to the LED and buzzer drive circuits in the main control module 1 and the alarm module 5.

[0022] In some implementations, such as Figure 1-7As shown, the execution control module 2 includes an HK4100F-DCSV-SHG type relay, an S8550 type transistor Q6, and a current-limiting resistor R15. One end of the relay coil is connected to VDD3V3, and the other end is connected to the collector of the transistor Q6. The emitter of the transistor Q6 is grounded, and the base of the transistor Q6 is connected to the PA1 pin of the main control module 1 through the current-limiting resistor R15. The execution control module 2 also includes a freewheeling diode D4 and an indicator circuit. The freewheeling diode D4 is connected in parallel across the coil of the relay. The indicator circuit consists of a resistor R12 and a red LED D8 connected in series and is connected in parallel with the coil of the relay. When the flow rate needs to be adjusted, PA1 outputs a high level, which turns on Q6. After Q6 turns on, the relay coil is energized, forming a contact action that drives the execution mechanism 3. After the flow rate is normal, PA1 outputs a low level, which stops the execution mechanism 3.

[0023] In some implementations, such as Figure 1-7 As shown, the Bluetooth module 7 is connected to the main control module 1 via a busbar. The RX pin of the busbar is connected to the MCU_TX1 pin of the main control module 1, the TX pin is connected to the MCU_RX1 pin of the main control module 1, the GND pin is grounded with the main control module 1, and the VCC pin is connected to VDD5V0.

[0024] In some implementations, such as Figure 1-7 As shown, the alarm module 5 includes an HNB09A05 buzzer BZ1, an S8550 transistor Q2, a current-limiting resistor R35, a red LED D15, and a resistor R34. The positive terminal of the buzzer BZ1 is connected to VDD3V3, and the negative terminal is connected to the collector of the transistor Q2. The emitter of the transistor Q2 is grounded, and the base of the transistor Q2 is connected to the PA2 pin of the main control module 1 through the current-limiting resistor R35. The red LED D15 is connected in series with the resistor R34, with one end connected to VDD3V3 and the other end connected to the negative terminal of the buzzer BZ1. When the flow rate is abnormal, PA2 outputs a high level to Q2, which turns on the buzzer, causing it to sound and the LED to light up. When the flow rate is normal, PA2 outputs a low level, and the alarm stops.

[0025] In some implementations, such as Figure 1-7As shown, the execution module includes three key buttons, one end of which is grounded, and the other end is connected to the PC13, PC14, and PC15 pins of the main control module 1, respectively. The execution mechanism 3 (such as a cooling water valve or water pump) is driven by the execution control module 2 to directly adjust the cooling water flow. The result of its action is detected again by the flow detection module 6, forming a closed-loop regulation of flow detection, main control judgment, execution control, execution mechanism 3 action, and flow re-detection, ensuring flow stability. The user can locally set parameters such as flow threshold and alarm mode through multiple buttons, and the main control responds and executes accordingly.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A cooling water flow monitoring alarm device, characterized by, include: Main control module; A flow detection module is provided, which detects the cooling water flow rate in real time and transmits the flow signal to the main control module. An alarm module is connected to the main control module, and the alarm module implements local alarm based on the judgment of the main control module; The display module is connected to the main control module and displays the cooling water flow rate and the working status of the equipment in real time. An execution control module is connected to the main control module. Based on the main control module's determination of the cooling water flow rate, it sends a control signal to drive the actuator to move. The result of the actuator's action will be detected again by the flow detection module to form a closed-loop regulation and ensure stable cooling water flow. It also includes: a Bluetooth module and a power module, wherein the Bluetooth module is connected to the main control module for bidirectional communication to realize remote data interaction; The power module is used to supply power to the main control module, Bluetooth module, execution control module, and alarm module; The main control module uses an STM32F103C8T6 microcontroller. The STM32F103C8T6 microcontroller receives the flow signal from the flow detection module through its PA0 pin, sends a control signal to the execution control module through its PA1 pin, sends an alarm trigger signal to the alarm module through its PA2 pin, communicates bidirectionally with the Bluetooth module through its PA9 and PA10 pins, and connects to the execution module through its PC13, PC14, and PC15 pins to receive local execution instructions. The power module outputs VDD5V0 and VDD3V3 voltages. VDD5V0 supplies power to the relay coils in the Bluetooth module and the execution control module, while VDD3V3 supplies power to the LED and buzzer driver circuits in the main control module and the alarm module. The execution control module includes an HK4100F-DCSV-SHG type relay, an S8550 type transistor Q6, and a current-limiting resistor R15; One end of the relay coil is connected to VDD3V3, and the other end is connected to the collector of the transistor Q6. The emitter of the transistor Q6 is grounded, and the base of the transistor Q6 is connected to the PA1 pin of the main control module through the current limiting resistor R15. The execution control module also includes a freewheeling diode D4 and an indicator circuit. The freewheeling diode D4 is connected in parallel across the coil of the relay. The indicator circuit consists of a resistor R12 and a red LED D8 connected in series and is connected in parallel with the coil of the relay. The execution module includes three key buttons, one end of each button is grounded, and the other end is connected to the PC13, PC14, and PC15 pins of the main control module, respectively.

2. The cooling water flow monitoring and alarm device according to claim 1, characterized in that: The Bluetooth module is connected to the main control module via a header. The RX pin of the header is connected to the MCU_TX1 pin of the main control module, the TX pin is connected to the MCU_RX1 pin of the main control module, the GND pin is grounded with the main control module, and the VCC pin is connected to VDD5V0.

3. The cooling water flow monitoring and alarm device according to claim 2, characterized in that: The alarm module includes an HNB09A05 type buzzer BZ1, an S8550 type transistor Q2, a current-limiting resistor R35, a red LED D15, and a resistor R34. The positive terminal of the buzzer BZ1 is connected to VDD3V3, the negative terminal is connected to the collector of the transistor Q2, the emitter of the transistor Q2 is grounded, and the base of the transistor Q2 is connected to the PA2 pin of the main control module through the current limiting resistor R35. The red LED D15 is connected in series with the resistor R34, with one end connected to VDD3V3 and the other end connected to the negative terminal of the buzzer BZ1.

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