CN211348313U - Maintenance tool for nuclear power plant rotation speed switch instrument - Google Patents
Maintenance tool for nuclear power plant rotation speed switch instrument Download PDFInfo
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- CN211348313U CN211348313U CN201922396302.6U CN201922396302U CN211348313U CN 211348313 U CN211348313 U CN 211348313U CN 201922396302 U CN201922396302 U CN 201922396302U CN 211348313 U CN211348313 U CN 211348313U
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Abstract
The utility model belongs to the technical field of the instrument overhauls, concretely relates to maintenance instrument of rotational speed switch instrument of nuclear power plant. The device comprises a speed regulating motor, a rotating speed controller, a control panel, a manual controller, an automatic controller and a power supply, wherein the speed regulating motor is connected with a rotating speed switch, the rotating speed switch is respectively connected with the power supply and the automatic controller, the automatic controller and the manual controller are both connected with the rotating speed controller, and the rotating speed controller is connected with the speed regulating motor; the control panel is respectively connected with the manual controller, the automatic controller, the rotating speed controller and the power supply. The speed regulating motor shaft is connected with the rotating speed switch through a connecting piece, so that the rotating speed switch rotating shaft and the speed regulating motor can synchronously rotate. The utility model is suitable for an installation, debugging and the maintenance of nuclear power plant's speed switch instrument.
Description
Technical Field
The utility model belongs to the technical field of the instrument overhauls, concretely relates to maintenance instrument of rotational speed switch instrument of nuclear power plant.
Background
At present, a rotating speed switch instrument is widely adopted in a nuclear power plant. During the overhaul or the mediation of the nuclear power unit, the instrument of the type can be subjected to functional inspection, the problem of the instrument is found in time and corrective maintenance is carried out, the instrument is ensured to meet the function of monitoring the rotation state of large-scale rotating equipment such as a circulating water pump, and therefore the unit is ensured to run safely and stably during the next nuclear fuel cycle. In the actual maintenance process, the instrument has the problems of lack of a method for guiding installation, immature debugging method, rigorous maintenance window, occupation of main line time of unit overhaul in the maintenance process and the like. If the overhaul quality is unqualified, the machine set is in a state of returning due to overhaul again, and the major overhaul time is greatly occupied.
Therefore, a nuclear power plant needs a set of tool capable of debugging a rotating speed switch in an off-line manner, the maintenance of the instrument is completed efficiently and in high quality, and faults are avoided in the starting and running processes of a nuclear power unit.
The utility model relates to a solve the above-mentioned problem that mechanical type rotational speed switch instrument exists in the aspect of maintaining. The utility model discloses a can effectively guide installation, the debugging of this type speed switch instrument. The utility model discloses a can make the method that the rotational speed switch instrument was maintained more ripe, the maintenance quality is more controllable, and maintenance efficiency promotes by a wide margin.
Disclosure of Invention
In the maintenance process of the rotating speed switch instrument, the problems of lack of a method for guiding installation, immature debugging method, harsh maintenance window, occupation of main line time of unit overhaul in the maintenance process and the like exist. In order to solve the problem, the utility model discloses an off-line maintenance instrument of one set of speed switch instrument. The utility model discloses a can effectively guide the installation, the debugging of rotational speed switch instrument. The utility model discloses a can make the method that the rotational speed switch instrument was maintained more ripe, the maintenance quality is more controllable, and maintenance efficiency promotes by a wide margin.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a maintenance tool for a nuclear power plant rotating speed switch instrument comprises a speed regulating motor, a rotating speed controller, a control panel, a manual controller, an automatic controller and a power supply, wherein the speed regulating motor is connected with the rotating speed switch, the rotating speed switch is respectively connected with the power supply and the automatic controller, both the automatic controller and the manual controller are connected with the rotating speed controller, and the rotating speed controller is connected with the speed regulating motor; the control panel is respectively connected with the manual controller, the automatic controller, the rotating speed controller and the power supply.
The speed regulating motor shaft is connected with the rotating speed switch through a connecting piece, so that the rotating speed switch rotating shaft and the speed regulating motor can synchronously rotate.
Manual mode: the speed regulating motor is characterized in that a speed regulating switch is installed on a rotating shaft of a speed regulating motor, after an output instruction is connected with a speed regulating switch power supply cable, a fixed value and a high-low alarm mode of an instrument are input on an automatic controller, a manual controller is used for manually adjusting a speed control knob of a speed controller, so that the rotating speed is uniformly changed, the state of an output indicator lamp is observed, when a rotating speed switch signal is turned over, the rotating speed of the speed regulating motor is read, and the function and the performance of the speed regulating switch are judged according to the fixed value of the speed regulating motor.
The automatic mode is as follows: installing a rotating speed switch on a rotating shaft of a speed regulating motor, starting an automatic controller after the rotating speed switch is connected with a rotating speed switch power supply cable, automatically adjusting the rotating speed controller according to a preset scheme by the automatic controller, and collecting an output signal of the rotating speed switch; and meanwhile, automatically comparing the signal with an expected signal preset by the automatic controller, judging whether the function of the rotating speed switch is normal or not, if the function is normal, lighting a normal indicator lamp of an instrument on the control panel, and if the function is abnormal, lighting a fault indicator lamp of the instrument on the control panel.
The utility model discloses the beneficial effect who gains does:
the utility model is suitable for an installation, debugging and maintenance of nuclear power plant's rotational speed switch instrument provides an installation and debugging maintenance tool and method of similar function instrument of nuclear power plant. The utility model relates to a set of instrument. In a pressurized water reactor nuclear power plant, a large rotating device widely adopts a rotating speed instrument to monitor the rotating speed of the device. During the outage of the unit overhaul equipment, the rotating speed instrument needs to be disassembled and inspected and maintained through the tool, the problems of instrument performance reduction and the like are found in time and are corrected, and then the instrument is installed after the instrument is successfully debugged. The maintenance efficiency of the instrument can be greatly improved by the aid of the tool, the mainline overhaul time of the nuclear power unit is saved, and the economic benefit of a nuclear power plant is improved.
The PID rotating speed control system integrated in the tool can realize accurate and efficient control of the rotating speed of the motor. The tool can simulate the forward rotation, reverse rotation and outage state information of monitored equipment and the measurement and display of the rotating speed. The tool can debug the speed switch instrument, and can quickly and accurately locate the fault point of the instrument, thereby saving the maintenance time and greatly improving the working efficiency. This instrument adopts the adjustable speed motor simulation field device to rotate, reduces the human error risk and the rotational instability that traditional manual rotation mode brought. The tool has an automatic test function, automatically compares an output signal of the instrument with a preset signal in controller software, and gives an analysis result of the performance state of the instrument.
Drawings
FIG. 1 is a diagram of a maintenance tool for a nuclear power plant speed switch instrument.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the maintenance tool of the nuclear power plant speed switch instrument of the present invention comprises a speed regulating motor, a speed controller, a control panel, a manual controller, an automatic controller and a power supply, wherein the speed regulating motor is connected with the speed switch, the speed switch is respectively connected with the power supply and the automatic controller, the automatic controller and the manual controller are both connected with the speed controller, and the speed controller is connected with the speed regulating motor; the control panel is respectively connected with the manual controller, the automatic controller, the rotating speed controller and the power supply.
A speed regulating motor is arranged, and a shaft of the speed regulating motor is connected with a rotating speed switch through a connecting piece, so that the synchronous rotation of the instrument rotating shaft and the speed regulating motor is ensured. A rotation speed controller is arranged and can receive signals of a manual and automatic speed regulation controller so as to realize the regulation of the rotation speed of the motor. A control panel is arranged to realize the rotation speed control of the speed regulating motor, the rotation speed signal display of the speed regulating motor and the display of the output signal of the instrument. And arranging an automatic debugging control system, automatically judging whether the instrument functions normally or not according to the output signal and the set value of the instrument, and displaying a speed regulation result.
The tool has the following functions: the automatic controller adopts PID control to realize the high-efficiency and accurate control of the rotating speed. The manual and automatic control of the speed regulation motor can be realized through the speed regulation controller. The rotating speed switch outputs a signal and the status indicator lamp displays. The automatic controller can automatically judge whether the function of the instrument is normal or not and whether the fixed value is within the error range or not according to the output signal of the instrument, the set value and the accuracy grade of the instrument.
The utility model provides an overhaul instrument of speed switch instrument installation and debugging of nuclear power plant. This maintenance instrument adopts the mode design that integrates, mainly contains following part: the system comprises human-computer interaction equipment such as an automatic controller, a manual controller, a speed regulation motor, an output indicator lamp, an input button and the like.
The main component functions and the connection relationship among the components are as follows: the speed regulating motor receives the control signal of the rotating speed controller to realize the functions of controlling the rotating direction and the rotating speed of the speed regulating motor. And the connecting piece is used for realizing the connection and installation of the rotating speed switch and the speed regulating motor. A control panel mainly comprises man-machine interaction equipment such as a display lamp, an input button and an adjusting knob, and realizes control over a speed regulating motor, state display of rotation of the speed regulating motor and display of instrument output signals. And setting an automatic debugging function, automatically judging whether the instrument functions are normal or not according to the output signal of the instrument, and displaying a speed regulation result.
The tool has two testing modes of manual and automatic:
manual mode: the rotating speed switch is installed on a rotating shaft of the speed regulating motor through a connecting piece, and after an output instruction is connected with a rotating speed switch power supply cable, a fixed value and a high-low alarm mode of the instrument are input on the automatic controller. The rotating speed control knob of the rotating speed controller is manually adjusted through the manual controller, so that the rotating speed is uniformly changed, the state of the output indicator lamp is observed, when the signal of the rotating speed switch instrument overturns, the rotating speed of the speed regulating motor is read, and the function and the performance of the rotating speed switch are judged according to the fixed value of the rotating speed switch instrument.
The automatic mode is as follows: the rotating speed switch instrument is installed on the maintenance tool through the connecting piece, after the rotating speed switch instrument is connected with the rotating speed switch power supply cable, the automatic controller is started, the automatic controller automatically adjusts the rotating speed controller according to a preset scheme, and an output signal of the rotating speed switch is collected. And meanwhile, automatically comparing the signal with an expected signal preset by the automatic controller, judging whether the function of the rotating speed switch is normal or not, if the function is normal, lighting an indicator lamp indicating that the instrument is normal on the control panel, and if the function is abnormal, lighting an indicator lamp indicating that the instrument is failed on the control panel.
Claims (2)
1. The utility model provides a maintenance instrument of rotational speed switch instrument of nuclear power plant which characterized in that: the device comprises a speed regulating motor, a rotating speed controller, a control panel, a manual controller, an automatic controller and a power supply, wherein the speed regulating motor is connected with a rotating speed switch, the rotating speed switch is respectively connected with the power supply and the automatic controller, the automatic controller and the manual controller are both connected with the rotating speed controller, and the rotating speed controller is connected with the speed regulating motor; the control panel is respectively connected with the manual controller, the automatic controller, the rotating speed controller and the power supply.
2. The overhaul tool for a nuclear power plant speed switch instrument according to claim 1, wherein: the speed regulating motor shaft is connected with the rotating speed switch through a connecting piece, so that the rotating speed switch rotating shaft and the speed regulating motor can synchronously rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922396302.6U CN211348313U (en) | 2019-12-27 | 2019-12-27 | Maintenance tool for nuclear power plant rotation speed switch instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922396302.6U CN211348313U (en) | 2019-12-27 | 2019-12-27 | Maintenance tool for nuclear power plant rotation speed switch instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211348313U true CN211348313U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922396302.6U Active CN211348313U (en) | 2019-12-27 | 2019-12-27 | Maintenance tool for nuclear power plant rotation speed switch instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211348313U (en) |
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2019
- 2019-12-27 CN CN201922396302.6U patent/CN211348313U/en active Active
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