Submersible pump health monitor

Abstract

The utility model relates to a submersible pump health monitor which comprises a monitor body, a lifting device, a guide rod and a submersible pump body. A hand winch is arranged on the right side of the hoisting device, a steel wire rope is arranged in the hand winch, the bottom of the steel wire rope and the top of the submersible pump body are hoisted, a fastening mechanism is arranged on the outer side of the steel wire rope, and an integrated vibration sensor is installed on the left side of the fastening mechanism in a threaded mode; the integrated vibration sensor is installed to monitor the vibration amplitude of the submersible pump body, the amplitude, current, water leakage and high temperature conditions of the submersible pump can be visually displayed on the monitor body, an operator can find the abnormal conditions of the submersible pump in time, and the fault monitoring accuracy of submersible pump operation is improved; the performance and the stability of the submersible pump are effectively evaluated, and a basis is provided for maintenance of the submersible pump, so that the service life of the submersible pump is greatly prolonged, the production efficiency is improved, and the enterprise cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pumps, in particular to a health monitor for submersible pumps. Background Art

[0002] As a common type of water pump, submersible pumps are widely used in various water environments. In sewage treatment plants, submersible pumps can pump sewage from sewers or ponds to treatment equipment for filtration and purification. Submersible pumps are installed through guide rods and lifting devices and operate below the water surface. Operators cannot observe the real-time state of submersible pumps. When the submersible pumps operate abnormally due to reasons such as foreign object entanglement or loose installation and fixation, they cannot be monitored, which will reduce the service life of submersible pumps and may damage the submersible pumps seriously in severe cases.

[0003] At present, most submersible pump protectors on the market only have leakage and high-temperature protection and cannot conduct timely and comprehensive operation monitoring on submersible pumps, which affects the performance and service life of submersible pumps. Therefore, it is of great significance to study an efficient health monitor for submersible pumps. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a health monitor for submersible pumps to overcome the above deficiencies in the prior art.

[0005] The technical solution of the utility model to solve the above technical problem is as follows: A health monitor for submersible pumps, characterized by comprising a monitor body, a lifting device, a guide rod and a submersible pump body; a hand winch is arranged on the right side of the lifting device, a steel wire rope is arranged inside the hand winch, the bottom of the steel wire rope is hoisted with the top of the submersible pump body, a fastening mechanism is arranged on the outer side of the steel wire rope, and an integrated vibration sensor is installed on the left side of the fastening mechanism by thread;

[0006] The monitor body includes an MCU chip, a liquid crystal display screen, wiring terminals and buttons. The number of the wiring terminals is two and they are symmetrically distributed up and down. The liquid crystal display screen and the buttons are both fixedly installed on the front side of the monitor body. The liquid crystal display screen and the wiring terminals are both electrically connected to the MCU chip;

[0007] The integrated vibration sensor is electrically connected to the upper wiring terminal to input vibration signals and make the monitor body display vibration values;

[0008] The current value of the submersible pump body is electrically connected to the upper wiring terminal to input current signals and make the monitor body display current values;

[0009] The high-temperature signal of the submersible pump body is electrically connected to the upper wiring terminal to input high-temperature signals and make the monitor body display high temperature;

[0010] The water leakage signal of the submersible pump body is electrically connected to the upper wiring terminal, and the water leakage signal is transmitted to make the monitor body display water leakage;

[0011] An alarm output driving circuit is arranged inside the MCU chip to detect the collected current, vibration, water leakage, and high-temperature signals;

[0012] The wiring terminal below is electrically connected to an RS485 communication circuit.

[0013] The beneficial effects of the present utility model are as follows: By installing an integrated vibration sensor to monitor the vibration amplitude of the submersible pump body, the amplitude, current, water leakage, and high-temperature conditions of the submersible pump will be intuitively displayed on the monitor body. The operation personnel can timely discover the abnormal conditions of the submersible pump, improve the accuracy of monitoring the operation faults of the submersible pump, effectively evaluate the performance and stability of the submersible pump, provide a basis for the maintenance and upkeep of the submersible pump, thereby greatly extending the service life of the submersible pump, improving production efficiency, and reducing enterprise costs.

[0014] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0015] Further, a bracket is fixedly installed on the right side of the guide rod, the left side of the submersible pump body is slidably connected to the outside of the guide rod, and the bottom of the submersible pump body is in contact with the top of the guide rod.

[0016] Further, the fastening mechanism includes a first clamp block, a second clamp block, and a fastening bolt. The first clamp block is rotatably connected to the second clamp block. Opposite sides of the first clamp block and the second clamp block are both provided with docking ports. The steel wire rope is located inside the docking ports, and the first clamp block and the second clamp block are fixedly connected by threaded transmission of the fastening bolt.

[0017] Further, the RS485 communication circuit is connected to an automatic control system. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present utility model;

[0019] Figure 2 It is a three-dimensional structural diagram of the monitor body of the present utility model;

[0020] Figure 3 It is a three-dimensional structural diagram of the monitor body of the present utility model from another perspective;

[0021] Figure 4 It is a three-dimensional structural diagram of the fastening mechanism of the present utility model;

[0022] Figure 5 It is a three-dimensional structural diagram of the fastening mechanism of the present utility model from another perspective;

[0023] Figure 6 Schematic diagram of the connection between the first clamping block and the second clamping block of the present utility model;

[0024] Figure 7 One of the circuit schematic diagrams of the present utility model;

[0025] Figure 8 The second circuit schematic diagram of the present utility model;

[0026] Figure 9 Schematic diagram of the terminal block of the present utility model.

[0027] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Monitor body; 2. Lifting device; 3. Guide rod; 4. Submersible pump body; 5. Hand winch; 6. Steel wire rope; 7. Fastening mechanism; 701. First clamping block; 702. Second clamping block; 703. Fastening bolt; 704. Docking interface; 8. Integrated vibration sensor; 9. MCU chip; 10. Liquid crystal display screen; 11. Terminal block; 12. Button; 13. Bracket. Specific implementation mode

[0029] The principles and features of the present utility model are described below with reference to the attached drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0030] Example 1, as Figures 1 to 9 shown, the submersible pump health monitor includes a monitor body 1, a lifting device 2, a guide rod 3, and a submersible pump body 4; a hand winch 5 is arranged on the right side of the lifting device 2, a steel wire rope 6 is arranged inside the hand winch 5, the bottom of the steel wire rope 6 is hoisted with the top of the submersible pump body 4, an integrated vibration sensor 8 is arranged on the outer side of the steel wire rope 6, and a fastening mechanism 7 is threadedly installed on the left side of the fastening mechanism 7;

[0031] The monitor body 1 includes an MCU chip 9, a liquid crystal display screen 10, a terminal block 11, and a button 12. The number of terminal blocks 11 is two and they are symmetrically distributed up and down. The liquid crystal display screen 10 and the button 12 are both fixedly installed on the front side of the monitor body 1. The liquid crystal display screen 10 and the terminal block 11 are both electrically connected to the MCU chip 9;

[0032] The integrated vibration sensor 8 is electrically connected to the upper terminal block 11, inputs the vibration signal, and enables the monitor body 1 to display the vibration value;

[0033] The current value of the submersible pump body 4 is electrically connected to the upper terminal block 11, inputs the current signal, and enables the monitor body 1 to display the current value;

[0034] The high-temperature signal of the submersible pump body 4 is electrically connected to the upper terminal 11, and the high-temperature signal is input to make the monitor body 1 display high temperature;

[0035] The water leakage signal of the submersible pump body 4 is electrically connected to the upper terminal 11, and the water leakage signal is input to make the monitor body 1 display water leakage;

[0036] An alarm output driving circuit is provided inside the MCU chip 9 to detect the collected current, vibration, water leakage, and high-temperature signals;

[0037] The lower terminal 11 is electrically connected to an RS485 communication circuit.

[0038] Press the power on / off key to turn on the monitor body 1. The liquid crystal display screen 10 displays the real-time vibration amplitude, current value, vibration alarm value of the submersible pump body 4, as well as values such as temperature: normal / high temperature, water leakage: normal / water leakage, etc. Press the SET key to enter the setting mode, and press the "+" and "-" keys to set the vibration warning value, vibration alarm value, current warning value, and current alarm value, which is convenient for the MCU chip to judge when receiving the corresponding input value, so as to decide whether to give a warning and an alarm. Install the integrated vibration sensor 8 on the wire rope 6 through the fastening mechanism 7 to collect the vibration amplitude of the submersible pump body 4 under normal operation in real time. The current signal, vibration signal, water leakage signal, and high-temperature signal are connected to the monitor body 1 through the cable. The vibration amplitude and operating current are displayed on the liquid crystal display screen 10 of the monitor body 1. The monitor body 1 processes and analyzes the data through the preset alarm value and preset signal to monitor the operating state of the submersible pump body 4. When an abnormal situation occurs, the monitor body 1 outputs a warning and an alarm to achieve the purpose of protecting the submersible pump;

[0039] When the vibration amplitude of the submersible pump body 4 reaches the warning value and the alarm value, the monitor body 1 displays vibration warning and vibration alarm;

[0040] When the current value of the submersible pump body 4 reaches the warning value and the alarm value, the monitor body 1 displays current warning and current alarm;

[0041] When the winding of the submersible pump body 4 is at high temperature, the high-temperature signal of the submersible pump is input to the monitor body 1, and the monitor body 1 displays high temperature;

[0042] When the submersible pump body 4 leaks water, the water leakage signal of the submersible pump is input to the monitor body 1, and the monitor body 1 displays water leakage;

[0043] The model of the MCU chip is STM32F103C8T6, and the integrated vibration sensor 8 has a waterproof and dustproof function.

[0044] Example 2, as Figures 1 to 9As shown, this embodiment is a further improvement based on the embodiment 1, which is specifically as follows: a bracket 13 is fixedly installed on the right side of the guide rod 3, the left side of the submersible pump body 4 is slidably connected to the outside of the guide rod 3, and the bottom of the submersible pump body 4 is in contact with the top of the guide rod 3.

[0045] When the submersible pump body 4 is lowered, the guide rod 3 provides a guiding function, and the bracket 13 limits the position below the submersible pump body 4.

[0046] Embodiment 3, as Figures 4 to 6 As shown, this embodiment is a further improvement on the basis of embodiment 1, which is specifically as follows: the fastening mechanism 7 includes a first clamp block 701, a second clamp block 702 and a fastening bolt 703, the first clamp block 701 is rotatably connected with the second clamp block 702, and docking ports 704 are provided on opposite sides of the first clamp block 701 and the second clamp block 702, the wire rope 6 is located inside the docking port 704, and the first clamp block 701 and the second clamp block 702 are fixed by threaded transmission connection through the fastening bolt 703.

[0047] The second clamping block 702 is rotated so that the two docking ports 704 cover the wire rope 6, thereby fixing the first clamping block 701 and the second clamping block 702 by tightening bolts 703, and the integrated vibration sensor 8 is connected to the left side of the first clamping block 701 through threaded transmission.

[0048] Embodiment 4, as Figures 1 to 9 As shown, this embodiment is a further improvement based on the embodiment 1, and its details are as follows: the RS485 communication circuit is connected to the automatic control system.

[0049] The RS485 communication circuit is connected to the automatic control system to display the monitoring information of the submersible pump body 4 on the central control computer.

[0050] like Figures 7 to 8 As shown, the digital signal interface of the monitor body 1 collects the high temperature and water leakage signals of the submersible pump body 4; at the same time, the three-phase operating current and vibration amplitude (standard 4-20mA signal) of the equipment are collected to the single-chip microcomputer (MCU chip 9) in the monitor body 1 through the analog signal acquisition circuit. Since the high temperature and water leakage signals are switch quantities, when a high temperature or water leakage fault occurs, the system will directly output an alarm signal; the three-phase operating current and vibration amplitude are analog signals, and when the signal is greater than the set value, the corresponding warning value or alarm value will be output.

[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. Submersible pump health monitor, characterized in that, It includes a monitor body (1), a hoisting device (2), a guide rod (3) and a submersible pump body (4); a hand winch (5) is arranged on the right side of the hoisting device (2), a steel wire rope (6) is arranged inside the hand winch (5), the bottom of the steel wire rope (6) is hoisted with the top of the submersible pump body (4), a fastening mechanism (7) is arranged on the outer side of the steel wire rope (6), and an integrated vibration sensor (8) is installed on the left side of the fastening mechanism (7) by threading. The monitor body (1) includes an MCU chip (9), a liquid crystal display screen (10), a terminal block (11) and a key (12). The number of the terminal blocks (11) is two and they are symmetrically distributed up and down. The liquid crystal display screen (10) and the key (12) are both fixedly installed on the front side of the monitor body (1). The liquid crystal display screen (10) and the terminal block (11) are both electrically connected to the MCU chip (9). The integrated vibration sensor (8) is electrically connected to the upper terminal block (11) to input the vibration signal, so that the monitor body (1) displays the vibration value. The current value of the submersible pump body (4) is electrically connected to the upper terminal block (11) to input the current signal, so that the monitor body (1) displays the current value. The high-temperature signal of the submersible pump body (4) is electrically connected to the upper terminal block (11) to input the high-temperature signal, so that the monitor body (1) displays high temperature. The water leakage signal of the submersible pump body (4) is electrically connected to the upper terminal block (11) to input the water leakage signal, so that the monitor body (1) displays water leakage. An alarm output driving circuit is arranged inside the MCU chip (9) to detect the collected current, vibration, water leakage and high-temperature signals. The lower terminal block (11) is electrically connected to an RS485 communication circuit.

2. The submersible pump health monitor according to claim 1, characterized in that, A bracket (13) is fixedly installed on the right side of the guide rod (3). The left side of the submersible pump body (4) is slidably connected to the outer side of the guide rod (3), and the bottom of the submersible pump body (4) is attached to the top of the guide rod (3).

3. The submersible pump health monitor according to claim 1, characterized in that, The fastening mechanism (7) includes a first clamping block (701), a second clamping block (702) and a fastening bolt (703). The first clamping block (701) is rotatably connected to the second clamping block (702). Opposite sides of the first clamping block (701) and the second clamping block (702) are both provided with docking ports (704). The steel wire rope (6) is located inside the docking ports (704). The first clamping block (701) and the second clamping block (702) are fixedly connected by threaded transmission of the fastening bolt (703).

4. The submersible pump health monitor according to claim 1, characterized in that The RS485 communication circuit is connected to an automatic control system.

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