A maintenance tool for Hall-type reversing switch instrument

Abstract

The present invention belongs to the technical field of nuclear power plant operation monitoring, and specifically relates to a maintenance tool for a Hall-type reversing switch instrument. The maintenance tool is designed in an integrated manner, including a magnetic pole detection sensor device, a control panel, a speed regulating motor, a magnet, a reversing switch, a relay, and an output indication; the control panel includes a speed controller, an automatic controller, an adjustable power supply, and a manual controller; in the control panel, the automatic controller can control the speed regulating motor by controlling the speed controller, and control the reversing switch by controlling the adjustable power supply; the manual controller can control the speed regulating motor by controlling the speed controller, and control the reversing switch by controlling the adjustable power supply. The magnetic pole detection sensor device integrated in the tool can identify, distinguish, and judge the polarity of the magnet of the instrument to judge the magnetic properties and polarity of the magnet of the instrument, so as to quickly locate the installation direction of the magnet, and prevent the magnet from being installed in the wrong direction on site, resulting in abnormal operation of the instrument.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear power plant operation monitoring, and in particular relates to a maintenance tool for a Hall type reversing switch instrument. Background Art

[0002] At present, nuclear power plants widely use Hall principle reversing switch instruments. During the overhaul or adjustment of nuclear power units, this type of instrument will be functionally checked to promptly identify problems with the instrument and perform corrective maintenance to ensure that the instrument meets the function of monitoring the rotation status of large rotating equipment such as circulating water pumps, thereby ensuring the safe and stable operation of the unit during the next nuclear fuel cycle.

[0003] In the actual maintenance process, the instrument has problems such as lack of guidance on installation, immature debugging methods, strict maintenance windows, and the maintenance process occupying the main line time of unit overhaul.

[0004] If the maintenance quality is not up to standard, another maintenance will cause the unit to deteriorate, which greatly consumes the main line time of the overhaul.

[0005] This patent invention is to solve the above-mentioned problems in the maintenance of Hall-type reversing switch instruments. The invention can effectively guide the installation and debugging of Hall-type reversing switch instruments.

[0006] This patented invention can make the maintenance method of Hall-type reversing switch instruments more mature, the maintenance quality more controllable, and the maintenance efficiency greatly improved.

[0007] Therefore, nuclear power plants need a set of tools that can debug the reversing switch offline to complete the maintenance of the instrument efficiently and with high quality to avoid failures during the startup and operation of the nuclear power units. Summary of the invention

[0008] The purpose of the present invention is to provide a maintenance tool for a Hall-type reversing switch instrument, which can effectively guide the installation and debugging of the Hall-type reversing switch instrument. This patent invention can make the maintenance method of the Hall-type reversing switch instrument more mature, the maintenance quality more controllable, and the maintenance efficiency greatly improved.

[0009] Summary of the invention of the present invention is as follows:

[0010] A maintenance tool for a Hall-type reversing switch instrument, the maintenance tool is designed in an integrated manner, including a magnetic pole detection sensor device, a control panel, a speed regulating motor, a magnetic steel, a reversing switch, a relay and an output indicator;

[0011] The control panel includes a speed controller, an automatic controller, an adjustable power supply, and a manual controller;

[0012] In the control panel, the automatic controller can control the speed controller to control the speed regulating motor, and control the reversing switch by controlling the adjustable power supply;

[0013] The manual controller can control the speed controller to control the speed motor, and control the reversing switch by controlling the adjustable power supply.

[0014] The speed regulating motor can control the magnet, which then transmits the signal to the reversing switch. The reversing switch outputs high and low levels. The level signal is connected to the relay to control the relay to be energized or de-energized, and finally outputs an indication.

[0015] A maintenance tool for a Hall-type reversing switch instrument, wherein the magnetic pole detection sensor outputs a control signal to a magnetic steel, thereby realizing magnetic pole recognition, identification and polarity judgment of the Hall-type reversing switch magnetic steel.

[0016] A maintenance tool for a Hall-type reversing switch instrument, wherein the speed regulating motor realizes the steering and speed control functions of the speed regulating motor by receiving a control signal from a speed controller.

[0017] The utility model relates to a maintenance tool for a Hall type reversing switch instrument. A magnetic steel mounting bracket is arranged on a speed regulating motor, and the magnetic steel is mounted on the speed regulating motor.

[0018] A maintenance tool for a Hall-type reversing switch instrument, wherein the control panel also includes a display light, an input button, an adjustment knob human-computer interaction device, and realizes control of a speed regulating motor, display of the rotation status of the speed regulating motor, and display of an instrument output signal.

[0019] A maintenance tool for a Hall-type reversing switch instrument. The automatic controller can be set with an automatic debugging function, automatically judge whether the instrument function is normal according to the output signal of the instrument, and display the speed regulation result.

[0020] A maintenance tool for a Hall-type reversing switch instrument, wherein the manual controller manually determines whether the function of the direction switch is normal or not according to the direction and speed of the speed regulating motor and the output indication of the speed switch. The output voltage of the adjustable power supply is manually adjusted, and the output state of the direction switch is observed to manually determine whether the voltage adaptation range of the speed switch is normal.

[0021] The beneficial effects of the present invention are as follows:

[0022] The magnetic pole detection sensor device integrated in the tool can identify, distinguish and judge the polarity of the instrument's magnet to determine the magnetic properties and polarity of the instrument's magnet, so as to quickly locate the installation direction of the magnet and prevent the wrong direction of the magnet from being installed on site, which may cause abnormal operation of the instrument.

[0023] This tool can simulate the forward and reverse rotation and speed of the monitored equipment and display them.

[0024] This tool can debug the Hall-type reversing switch and quickly and accurately locate the fault point of the instrument, saving maintenance time and greatly improving work efficiency.

[0025] The tool uses a speed-controlled motor to simulate the rotation of on-site equipment, reducing the risk of human error caused by traditional manual rotation methods.

[0026] The tool has an automatic detection function, which automatically compares the instrument output signal with the preset signal in the controller software and displays the instrument performance status. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The system diagram of the Hall-type reversing switch instrument maintenance tool of the present invention is shown in FIG. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0029] A maintenance tool for a Hall type reversing switch instrument is designed in an integrated manner and mainly comprises the following components: a magnetic pole detection sensor device, a control panel, a speed regulating motor, a magnetic steel, a reversing switch, a relay and an output indication.

[0030] The control panel includes a speed controller, an automatic controller, an adjustable power supply, and a manual controller.

[0031] In the control panel, the automatic controller can control the speed controller to control the speed regulating motor, and control the reversing switch by controlling the adjustable power supply;

[0032] The manual controller can control the speed controller to control the speed motor, and control the reversing switch by controlling the adjustable power supply.

[0033] The speed regulating motor can control the magnet, which then transmits the signal to the reversing switch. The reversing switch outputs high and low levels. The level signal is connected to the relay to control the relay to be energized or de-energized, and finally outputs an indication.

[0034] Among them, the magnetic pole detection sensor outputs a control signal to the magnet to realize magnetic pole recognition, identification and polarity judgment of the Hall-type reversing switch magnet.

[0035] The speed regulating motor realizes the steering and speed control functions of the speed regulating motor by receiving the control signal of the speed controller.

[0036] A magnetic steel mounting bracket is arranged on the speed regulating motor, and the magnetic steel is mounted on the speed regulating motor.

[0037] The control panel also includes display lights, input buttons, and adjustment knobs as human-computer interaction devices to achieve control of the speed regulating motor, display of the speed regulating motor rotation status, and display of instrument output signals.

[0038] The automatic controller can be set with an automatic debugging function, automatically judging whether the instrument function is normal according to the instrument output signal, and displaying the speed regulation result.

[0039] This tool has two testing modes: manual and automatic:

[0040] Manual method: Install the reverse switch on the bracket, connect the reverse switch power cable, manually adjust the direction of the speed controller and the speed control knob, observe the output indicator status, and manually determine whether the direction switch functions normally according to the direction and speed of the speed regulating motor and the output indication of the speed switch. Manually adjust the output voltage of the adjustable power supply, observe the output status of the direction switch, and manually determine whether the voltage adaptation range of the speed switch is normal.

[0041] Automatic mode: Install the reversing switch on the bracket, connect the reversing switch power cable, and start the automatic controller. The automatic controller will automatically adjust the output voltage of the speed controller and the adjustable power supply according to the preset plan, and collect the relay output signal of the speed switch. At the same time, the signal is automatically compared with the expected signal preset in the automatic controller software, and it is determined whether the steering switch function is normal. If the function is normal, the "Instrument Normal" indicator light on the control panel will light up. If the function is abnormal, the "Instrument Fault" indicator light on the control panel will light up.

[0042] The tool has the following features:

[0043] 1) The magnetic pole detection sensor device integrated in the tool can identify, distinguish and judge the magnetic pole of the magnetic steel to determine the performance and polarity of the instrument magnetic steel.

[0044] 2) Offline simulation of the monitored equipment.

[0045] 3) Steering switch output status indicator light display.

[0046] 4) Offline test of steering switch voltage adaptability range.

[0047] 5) Automatically test the performance status of the steering switch.

Claims

1. A maintenance tool for a Hall-type reversing switch instrument, which is designed in an integrated manner and includes a magnetic pole detection sensor device, a control panel, a speed regulating motor, a magnetic steel, a reversing switch, a relay and an output indicator; Features: The control panel includes a speed controller, an automatic controller, an adjustable power supply, and a manual controller; In the control panel, the automatic controller controls the speed controller to control the speed regulating motor, and controls the reversing switch by controlling the adjustable power supply; The manual controller controls the speed controller to control the speed regulating motor, and controls the reversing switch by controlling the adjustable power supply; The speed regulating motor controls the magnet, which then transmits the signal to the reversing switch. The reversing switch outputs high and low levels. The level signal is connected to the relay to control the relay to be energized or de-energized, and finally outputs the indication. The magnetic pole detection sensor outputs a control signal to the magnetic steel to realize magnetic pole recognition, identification and polarity judgment of the magnetic steel; The speed regulating motor realizes the steering and speed control functions of the speed regulating motor by receiving the control signal of the speed controller; A magnetic steel mounting bracket is arranged on the speed regulating motor, and the magnetic steel is mounted on the speed regulating motor; The control panel also includes a display light, an input button, and an adjustment knob human-computer interaction device to realize the control of the speed regulating motor, the display of the rotation status of the speed regulating motor, and the display of the instrument output signal.

2. A maintenance tool for a Hall type reversing switch instrument as claimed in claim 1, characterized in that: The automatic controller is provided with an automatic debugging function, which automatically determines whether the instrument function is normal according to the output signal of the instrument, and displays the speed regulation result.

3. A maintenance tool for a Hall type reversing switch instrument as claimed in claim 1, characterized in that: The manual controller manually determines whether the function of the direction switch is normal or not according to the direction and speed of the speed regulating motor and the output indication of the speed switch, manually adjusts the output voltage of the adjustable power supply, observes the output state of the direction switch, and manually determines whether the voltage adaptation range of the speed switch is normal.

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