CN210441811U - Steam turbine set opening degree measuring system and linear displacement sensor self-detection system - Google Patents
Steam turbine set opening degree measuring system and linear displacement sensor self-detection system Download PDFInfo
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- CN210441811U CN210441811U CN201921360572.5U CN201921360572U CN210441811U CN 210441811 U CN210441811 U CN 210441811U CN 201921360572 U CN201921360572 U CN 201921360572U CN 210441811 U CN210441811 U CN 210441811U
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Abstract
The utility model discloses a steam turbine set opening degree measuring system and a linear displacement sensor self-detection system, which comprises a voltage measuring module used for respectively detecting the voltage values of a primary coil and a secondary coil of a linear displacement sensor; and the main control module is connected with the voltage measuring module and used for comparing the detected voltage value of the primary coil and the detected voltage value of the secondary coil with preset value intervals respectively and triggering the alarm device to alarm according to the comparison result. The system is applied, the voltage measuring module is used for detecting the voltage values of the primary coil and the secondary coil of the linear displacement sensor, the main control module is used for comparing the detected voltage values of the primary coil and the secondary coil with preset value intervals respectively, and the alarm devices are triggered to alarm respectively according to the comparison result, so that the voltage values of the primary coil and the secondary coil are monitored in real time, and the alarm is given timely when the linear displacement sensor is in an abnormal state, so that the occurrence of operation accidents is avoided.
Description
Technical Field
The utility model relates to a sensor technical field, more specifically say, relate to a linear displacement sensor self-detecting system, still relate to a turbine unit aperture measurement system including above-mentioned linear displacement sensor self-detecting system.
Background
Linear displacement sensor generally is applied to the high accuracy measurement field, like the aperture measurement of thermal power unit steam turbine admission governing valve, linear displacement sensor's output value is exported to DEH promptly on the steam turbine digital electro-hydraulic control system rack, the demodulation through the fastener and the opening value of rectification after output display, nevertheless can not in time discover linear displacement sensor's abnormal output, in case linear displacement sensor is unusual, can cause great influence to the security of unit.
SUMMERY OF THE UTILITY MODEL
In view of this, a first object of the present invention is to provide a linear displacement sensor self-detecting system to solve the problem that the current linear displacement sensor cannot find out the abnormal condition in time. A second object of the present invention is to provide a steam turbine set opening degree measuring system including the above-mentioned linear displacement sensor self-detecting system.
In order to achieve the first object, the present invention provides the following technical solutions:
a linear displacement sensor self-detection system, comprising:
the voltage measuring module is used for respectively detecting the voltage values of the primary coil and the secondary coil of the linear displacement sensor;
and the main control module is connected with the voltage measuring module and used for comparing the detected voltage value of the primary coil and the detected voltage value of the secondary coil with preset value intervals respectively and triggering the alarm device to alarm according to the comparison result.
Optionally, the voltage measurement module comprises:
a first voltage measuring unit for detecting a voltage value of a primary coil of the linear displacement sensor;
a second voltage measuring unit for detecting a voltage value of a secondary coil of the linear displacement sensor;
the first voltage measuring unit and the second voltage measuring unit are respectively connected with the main control module.
Optionally, the main control module includes:
the primary coil judging module is used for comparing the voltage value of the primary coil detected by the first voltage measuring unit with a first preset value interval and triggering the alarm device to alarm in a first preset mode when the voltage value of the primary coil is within the first preset value interval;
and the secondary coil judgment module is used for comparing the voltage value of the secondary coil detected by the second voltage measurement unit with a second preset value interval and triggering the alarm device to alarm in a second preset mode when the secondary selected voltage value is not in the second preset value interval.
Optionally, the display device further comprises a display module connected to the main control module to display the voltage values of the primary coil and the secondary coil respectively.
Optionally, the system further comprises a communication module connected with the main control module, and the main control module uploads the detection data and the comparison result to an upper computer connected with the main control module through the communication module.
Optionally, the alarm device is specifically an indicator light.
Optionally, the first voltage measuring unit and the second voltage measuring unit are voltmeters respectively.
Optionally, the main control module further includes:
and the timer module is used for triggering the alarm device to alarm when the working time of the linear displacement sensor is more than or equal to the preset working time.
The utility model provides a linear displacement sensor self-detecting system, which comprises a voltage measuring module used for respectively detecting the voltage values of a primary coil and a secondary coil of a linear displacement sensor; and the main control module is connected with the voltage measuring module and used for comparing the detected voltage value of the primary coil and the detected voltage value of the secondary coil with preset value intervals respectively and triggering the alarm device to alarm according to the comparison result.
Use the utility model provides a linear displacement sensor is from detecting system, detect linear displacement sensor's primary coil and secondary coil's voltage value through voltage measurement module, and the voltage value of primary coil that will detect through host system, secondary coil's voltage value carries out the comparison with the default interval respectively, trigger alarm device respectively according to the comparative result and report to the police, set up from this, carry out real time monitoring with the voltage value to primary coil and secondary coil, in time report to the police when the abnormal condition appears in linear displacement sensor, in order to avoid the emergence of operation accident.
In order to achieve the second object, the utility model also provides a steam turbine set aperture measurement system, this system includes any kind of above-mentioned linear displacement sensor self-checking system, because foretell linear displacement sensor self-checking system has above-mentioned technological effect, the steam turbine set aperture measurement system who has this linear displacement sensor self-checking system also should have corresponding technological effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a self-detection system of a linear displacement sensor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a self-detecting system of a linear displacement sensor according to another embodiment of the present invention.
The drawings are numbered as follows:
the voltage measuring module 1, the first voltage measuring unit 11 and the second voltage measuring unit 12;
the main control module 2, the primary coil judging module 21 and the secondary coil judging module 22;
Detailed Description
The embodiment of the utility model discloses linear displacement sensor is from detecting system to can not in time discover the scheduling problem when solving current linear displacement sensor unusual.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, fig. 1 is a schematic structural diagram of a self-testing system of a linear displacement sensor according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a self-detecting system of a linear displacement sensor according to another embodiment of the present invention.
In a specific embodiment, the utility model provides a linear displacement sensor self-detecting system, include:
the voltage measuring module 1 is used for respectively detecting the voltage values of a primary coil and a secondary coil of the linear displacement sensor; the voltage measuring module 1 may be a voltmeter, and the voltmeter is respectively connected in parallel with the primary coil and the secondary coil to respectively detect the voltage values of the primary coil and the secondary coil.
And the main control module 2 is connected with the voltage measuring module 1 and is used for comparing the detected voltage value of the primary coil and the detected voltage value of the secondary coil with a preset value interval respectively and triggering the alarm device 5 to alarm according to the comparison result.
Comparing the detected voltage value of the primary coil with a preset value interval through the main control module 2, wherein the preset value interval is a preset interval corresponding to the voltage value of the primary coil, and triggering an alarm device 5 to alarm according to a comparison result; preferably, the alarm is performed in a first preset mode, similarly, the detected voltage value of the secondary coil is compared with a preset value interval, the preset value interval is a threshold range corresponding to the secondary coil, and the alarm device 5 is triggered to perform alarm in a second preset mode according to the comparison result, wherein the first preset mode is preferably that an indicator lamp is turned on, and the second preset mode is preferably in a buzzer buzzing mode and can be set according to actual needs. In one embodiment, the voltage value of the primary coil and the voltage value of the secondary coil may be compared with the same preset value interval, and the threshold range of the preset value interval may be set according to actual needs.
The main control module 2 can be specifically a PLC controller or a single chip microcomputer, and the main improvement point of the application lies in providing a self-detection system for detecting the coil voltage value of the linear displacement sensor and performing corresponding actions according to the comparison result of the main control module 2, namely the connection relation of the voltage measurement module, the main control module and the alarm device, wherein, the voltage measurement module 1 and the main control module 2 are both existing devices, and it is a mature prior art to how the main control module 2 compares the voltage value with the preset value interval, the main control module 2 comprises a voltage value receiving module for receiving the voltage values of the primary coil and the secondary coil sent by the voltage measurement module, the voltage value receiving module sends each voltage value to a voltage value judging module, the voltage value judging module respectively compares the voltage value of the primary coil and the voltage value of the secondary coil with the preset value interval, and respectively sending alarm signals to the alarm driving module according to the comparison result to trigger the alarm device to alarm, wherein the voltage value receiving module, the voltage value judging module and the alarm driving module are all existing devices, and are not described herein again.
Use the utility model provides a linear displacement sensor is from detecting system, detect linear displacement sensor's primary coil and secondary coil's voltage value through voltage measurement module 1, and the voltage value of primary coil that will detect through host system 2, secondary coil's voltage value respectively with the default interval carry out the comparison, trigger alarm device 5 according to the comparative result respectively and report to the police, set up from this, carry out real time monitoring with the voltage value to primary coil and secondary coil, in time report to the police when the abnormal condition appears in linear displacement sensor, in order to avoid the emergence of operation accident.
Specifically, the voltage measuring module 1 includes:
a first voltage measuring unit 11 for detecting a voltage value of a primary coil of the linear displacement sensor;
a second voltage measuring unit 12 for detecting a voltage value of a secondary coil of the linear displacement sensor;
the first voltage measuring unit 11 and the second voltage measuring unit 12 are respectively connected with the main control module 2. It can be understood that the first voltage measuring unit 11 and the second voltage measuring unit 12 are voltmeters, and the first voltage measuring unit 11 and the second voltage measuring unit 12 are connected to the main control module 2 through a communication device or a wire.
Further, the main control module 2 includes:
a primary coil judging module 21, configured to compare the voltage value of the primary coil detected by the first voltage measuring unit 11 with a first preset value interval, and trigger the alarm device 5 to alarm in a first preset manner when the voltage value of the primary coil is within the first preset value interval; the first preset value interval is 0V, when the voltage value of the primary coil is 0, it indicates that the primary coil is open-circuited or has a fault, and the primary coil determining module 21 triggers the alarm device 5 to alarm in a first preset mode.
And the secondary coil judging module 22 is used for comparing the voltage value of the secondary coil detected by the second voltage measuring unit 12 with a second preset value interval, and triggering the alarm device 5 to alarm in a second preset mode when the voltage value of the secondary coil is not in the second preset value interval. When the voltage value of the secondary coil is not within the second preset value interval, which indicates that the voltage value of the secondary coil is too large or too small, the secondary coil determining module 22 triggers the alarm device 5 to alarm in a second preset manner, wherein two endpoint values of the second preset value interval are set according to the maximum moving distance and the minimum moving distance of the linear displacement sensor, and certainly in other embodiments, the second preset value interval may also be set as needed.
Further, the device also comprises a display module 3 connected with the main control module 2 so as to respectively display the voltage values of the primary coil and the secondary coil. The display module 3 may be specifically a display, an electronic display screen, or the like, and the display module 3 displays the detected voltage values of the primary coil and the secondary coil in real time, so as to facilitate real-time monitoring by a worker.
Furthermore, the device also comprises a communication module connected with the main control module 2, and the main control module 2 uploads the detection data and the comparison result to an upper computer 4 connected with the main control module through the communication module. The communication module can be specifically a wireless communication device, such as a bluetooth module, a ZigBee module and the like, for wireless communication, and the main control module 2 uploads the voltage values detected by the first voltage measurement unit 11 and the second voltage measurement unit 12 to the upper computer 4 for data processing and storage.
In one embodiment, the warning device 5 is embodied as an indicator light. When the main control module 2 gives an alarm in a first preset mode, the primary coil goes wrong or is broken, the indicator lamp gives an alarm in red, and the primary warning and warning degree is high; when the main control module 2 gives an alarm in a second preset mode, the secondary coil goes wrong at the moment, the indicating lamp gives an alarm in yellow, and the secondary warning is low in warning degree. Here, it is only a preferred embodiment, and in other embodiments, the alarm device 5 may preferably be a buzzer.
Specifically, the main control module 2 further includes:
and the timer module is used for triggering the alarm device 5 to alarm when the working time of the linear displacement sensor is more than or equal to the preset working time. Therefore, the linear displacement sensor is set to prompt maintenance staff to regularly maintain the linear displacement sensor, and the preset working time can be set according to environmental factors, working intensity and the like.
Based on linear displacement sensor self-detecting system that provides in the above-mentioned embodiment, the utility model also provides a steam turbine opening measurement system, this steam turbine opening measurement system include arbitrary linear displacement sensor self-detecting system in the above-mentioned embodiment, can understand that, the opening measurement of steam turbine opening measurement system's the air admission governing valve detects through linear displacement sensor, because this steam turbine opening measurement system has adopted the linear displacement sensor self-detecting system in the above-mentioned embodiment, so this steam turbine opening measurement system's beneficial effect please refer to above-mentioned embodiment.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A linear displacement sensor self-detection system, comprising:
the voltage measuring module is used for respectively detecting the voltage values of the primary coil and the secondary coil of the linear displacement sensor;
and the main control module is connected with the voltage measuring module and used for comparing the detected voltage value of the primary coil and the detected voltage value of the secondary coil with preset value intervals respectively and triggering the alarm device to alarm according to the comparison result.
2. The linear displacement sensor self-detection system of claim 1, wherein the voltage measurement module comprises:
a first voltage measuring unit for detecting a voltage value of a primary coil of the linear displacement sensor;
a second voltage measuring unit for detecting a voltage value of a secondary coil of the linear displacement sensor;
the first voltage measuring unit and the second voltage measuring unit are respectively connected with the main control module.
3. The linear displacement sensor self-detection system of claim 2, wherein the master control module comprises:
the primary coil judging module is used for comparing the voltage value of the primary coil detected by the first voltage measuring unit with a first preset value interval and triggering the alarm device to alarm in a first preset mode when the voltage value of the primary coil is within the first preset value interval;
and the secondary coil judging module is used for comparing the voltage value of the secondary coil detected by the second voltage measuring unit with a second preset value interval and triggering the alarm device to alarm in a second preset mode when the voltage value of the secondary coil is not in the second preset value interval.
4. The self-detection system of claim 3, further comprising a display module connected to the main control module for displaying the voltage values of the primary coil and the secondary coil respectively.
5. The self-detection system of claim 4, further comprising a communication module connected to the main control module, wherein the main control module uploads the detection data and the comparison result to an upper computer connected to the main control module through the communication module.
6. Linear displacement sensor self-detection system according to claim 5, characterized in that the alarm device is in particular an indicator light.
7. The linear displacement sensor self-detection system of claim 3, wherein the first voltage measurement unit and the second voltage measurement unit are each a voltmeter.
8. The linear displacement sensor self-detection system of claim 1, wherein the master control module further comprises:
and the timer module is used for triggering the alarm device to alarm when the working time of the linear displacement sensor is more than or equal to the preset working time.
9. A steam turbine set opening degree measuring system, characterized by comprising a linear displacement sensor self-detection system according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921360572.5U CN210441811U (en) | 2019-08-20 | 2019-08-20 | Steam turbine set opening degree measuring system and linear displacement sensor self-detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921360572.5U CN210441811U (en) | 2019-08-20 | 2019-08-20 | Steam turbine set opening degree measuring system and linear displacement sensor self-detection system |
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| Publication Number | Publication Date |
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| CN210441811U true CN210441811U (en) | 2020-05-01 |
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| CN201921360572.5U Active CN210441811U (en) | 2019-08-20 | 2019-08-20 | Steam turbine set opening degree measuring system and linear displacement sensor self-detection system |
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| CN (1) | CN210441811U (en) |
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