CN216531093U - Silicon controlled on-line monitoring device for rectifying equipment - Google Patents
Silicon controlled on-line monitoring device for rectifying equipment Download PDFInfo
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- CN216531093U CN216531093U CN202122602006.4U CN202122602006U CN216531093U CN 216531093 U CN216531093 U CN 216531093U CN 202122602006 U CN202122602006 U CN 202122602006U CN 216531093 U CN216531093 U CN 216531093U
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- control microcomputer
- main control
- microcomputer board
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- thyristor
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Abstract
The utility model discloses a silicon controlled on-line monitoring device used in rectifying equipment, which comprises a main control microcomputer board; at least one thyristor; the two ends of the first isolation unit are respectively connected with the thyristor and the main control microcomputer board; and the power supply assembly is connected with the main control microcomputer board to supply power to the main control microcomputer board so that the main control microcomputer board monitors the state of the thyristor. The silicon controlled on-line monitoring device for the rectifying equipment can be used for monitoring the thyristor very quickly and effectively, and the monitoring efficiency is improved.
Description
Technical Field
The utility model relates to the field of rectifying equipment, in particular to a silicon controlled on-line monitoring device for rectifying equipment.
Background
In the industrial field, such as a speed regulating system of a rolling mill, variable frequency starting of a blast furnace blower, reactive power regulation of a phase control reactor, mining traction equipment and the like, the application of the silicon controlled rectifier is very wide. In a high voltage system, a plurality of thyristors are generally connected in series to work, and when the thyristors are in failure, the existing detection means is to use a multimeter or a thyristor detector for detection. The multimeter can only carry out preliminary detection to the silicon controlled rectifier, and the error is great. The special detector needs to disassemble the silicon controlled rectifier from the equipment for detection, has high detection precision, but has longer disassembly and detection period, and is not beneficial to fast recovery of production.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a silicon controlled online monitoring device for rectifying equipment, and aims to solve the technical problem.
In order to achieve the above object, the present invention provides an on-line monitoring device for a thyristor in a rectifier device, comprising:
a main control microcomputer board;
at least one thyristor;
the two ends of the first isolation unit are respectively connected with the thyristor and the main control microcomputer board;
and the power supply assembly is connected with the main control microcomputer board to supply power to the main control microcomputer board so that the main control microcomputer board monitors the state of the thyristor.
In an embodiment, the thyristor online monitoring device for the rectifying device further comprises a display control screen, the display control screen is simultaneously connected with the power supply assembly and the main control microcomputer board, and the main control microcomputer board can display the monitored state of the thyristor on the display control screen.
In an embodiment, the thyristor online monitoring device for the rectifying device further includes a signal amplification unit connected to the power supply assembly, and two ends of the signal amplification unit are respectively connected to the first isolation unit and the main control microcomputer board.
In an embodiment, the thyristor online monitoring device for the rectifying device further includes a second isolation unit connected to the power supply assembly, and two ends of the second isolation unit are respectively connected to the signal amplification unit and the main control microcomputer board.
In an embodiment, the first isolation unit is an electrical isolation transformer, and the second isolation unit is a photocoupler.
In an embodiment, the power supply assembly includes a 220V power supply and a voltage reduction unit connected to the power supply, the voltage reduction unit is configured to reduce the voltage of the power supply to 5V, and the voltage reduction unit is connected to the signal amplification unit, the second isolation unit, and the main control microcomputer board, respectively.
In one embodiment, the master control microcomputer board is provided with an alarm output interface used for being connected with a warning lamp and/or a warning horn so as to give an alarm through the warning lamp and/or the warning horn when the state of the silicon controlled rectifier is abnormal.
In one embodiment, the master control microcomputer board is provided with a 485 communication interface for connecting with a PLC.
In an embodiment, the main control microcomputer board is provided with an ethernet communication interface for connecting with an upper computer.
In an embodiment, the silicon controlled rectifier on-line monitoring device for the rectifying equipment further comprises an installation shell, wherein the installation shell comprises a bottom box and a cover plate arranged on the bottom box, the main control microcomputer board is arranged in the bottom box, an avoiding groove is formed in the bottom box and used for exposing an interface on the main control microcomputer board.
In the technical scheme of the utility model, the silicon controlled on-line monitoring device used in the rectifying equipment comprises a main control microcomputer board; at least one thyristor; the two ends of the first isolation unit are respectively connected with the thyristor and the main control microcomputer board; in the technical scheme, when the thyristor operates, the thyristor can be isolated from current and voltage signals input by the thyristor through the first isolation unit and input into the main control microcomputer board, so that the main control microcomputer board can judge the operating state of the thyristor according to the received current and voltage signals and comprehensively judge the operating state of the thyristor, the thyristor can be monitored very quickly and effectively, and the monitoring efficiency is improved.
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 the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a thyristor online monitoring device used in a rectifying device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mounting housing of a thyristor online monitoring device for a rectifying device according to an embodiment of the utility model.
The reference numbers illustrate: 10. a main control microcomputer board; 11. an alarm output interface; 12. 485 communication interface; 13. an Ethernet communication interface; 20. a first isolation unit; 30. a voltage reduction unit; 40. displaying a control screen; 50. a signal amplification unit; 60. a second isolation unit; 70. a bottom case; 71. an avoidance groove; 80. and (7) a cover plate.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Moreover, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The utility model provides a silicon controlled on-line monitoring device for rectifying equipment.
As shown in fig. 1, an on-line monitoring apparatus for a thyristor in a rectifying device according to an embodiment of the present invention includes:
a main control microcomputer board 10;
at least one thyristor;
the two ends of the first isolation unit 20 are respectively connected with the thyristor and the main control microcomputer board 10;
a power supply component connected to the main control microcomputer board 10 to supply power to the main control microcomputer board 10 so that the main control microcomputer board 10 monitors the state of the thyristor.
In this embodiment, when the thyristor operates, the current and voltage signals input to the thyristor can be isolated and input to the main control microcomputer board 10 through the first isolation unit 20, so that the main control microcomputer board 10 can judge the running state of the thyristor according to the received current and voltage signals and perform comprehensive judgment, thereby being capable of monitoring the thyristor very fast and effectively, and improving the monitoring efficiency.
Further, the thyristor on-line monitoring device for the rectifying equipment further comprises a display control screen 40, the display control screen 40 is connected with the power supply assembly and the main control microcomputer board 10, and the main control microcomputer board 10 can display the monitored state of the thyristor on the display control screen 40. In this embodiment, by setting the display and control screen 40, the state monitored by the thyristor in use can be displayed on the display and control screen 40 in real time, so that the thyristor can be conveniently checked by a user at any time.
In addition, the thyristor online monitoring device for the rectifying equipment further comprises a signal amplification unit 50 connected with the power supply assembly, and two ends of the signal amplification unit 50 are respectively connected with the first isolation unit 20 and the main control microcomputer board 10. The silicon controlled on-line monitoring device for the rectifying equipment further comprises a second isolation unit 60 connected with the power supply assembly, two ends of the second isolation unit 60 are respectively connected with the signal amplification unit 50 and the main control microcomputer board 10, the first isolation unit 20 is an electrical isolation transformer, and the second isolation unit 60 is a photoelectric coupler. In this embodiment, the input current and voltage signals can be electrically isolated, amplified, and then photoelectrically isolated and then input to the main control microcomputer board 10, and then the main control microcomputer board 10 comprehensively judges the acquired signals and then displays the current, voltage waveform, the states of the thyristors and whether the thyristors have faults on the display control screen 40.
Further, the power supply assembly comprises a power supply with a voltage of 220V and a voltage reduction unit 30 connected with the power supply, the voltage reduction unit 30 is used for reducing the voltage of the power supply to 5V, and the voltage reduction unit 30 is respectively connected with the signal amplification unit 50, the second isolation unit 60 and the main control microcomputer board 10. In this embodiment, the voltage of 220V is reduced to 5V by the voltage reducing unit 30, so that the power supply voltage does not exceed the rated voltage of the main control microcomputer board 10.
In an embodiment, an alarm output interface 11 for connecting with a warning lamp and/or a warning horn is disposed on the main control microcomputer board 10 to alarm through the warning lamp and/or the warning horn when the state of the thyristor is abnormal. In this embodiment, when the main control microcomputer board 10 monitors that the thyristor has a fault, the warning lamp or the warning horn connected to the alarm output interface 11 may be used to prompt the user that the thyristor has a fault, so that the thyristor can be repaired in time.
In addition, be provided with the 485 communication interface 12 that is used for being connected with PLC on the main control microcomputer board 10, be provided with the ethernet communication interface 13 that is used for being connected with the host computer on the main control microcomputer board 10, in this embodiment, accessible 485 communication interface 12 and ethernet communication interface 13 carry out data communication.
Further, please refer to fig. 2, the thyristor on-line monitoring device for the rectifying device further includes an installation housing, the installation housing includes a bottom box 70 and a cover plate 80 disposed on the bottom box 70, the main control microcomputer board 10 is disposed in the bottom box 70, an avoiding groove 71 is disposed on the bottom box 70, and the avoiding groove 71 is used for exposing an interface on the main control microcomputer board 10. In this embodiment, the main control microcomputer board 10 can be placed in the bottom case 70 by providing the mounting housing, and the avoiding groove 71 is formed to expose the ports (485 communication interface 12, ethernet communication interface 13, etc.) on the main control microcomputer board 10 for connection, so that the board body of the main control microcomputer board 10 can be effectively protected.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The on-line monitoring device for the controlled silicon in the rectifying equipment is characterized by comprising the following components:
a main control microcomputer board;
at least one thyristor;
the two ends of the first isolation unit are respectively connected with the thyristor and the main control microcomputer board;
and the power supply assembly is connected with the main control microcomputer board to supply power to the main control microcomputer board so that the main control microcomputer board monitors the state of the thyristor.
2. The on-line monitoring device for the thyristor in the rectifying equipment as claimed in claim 1, further comprising a display and control screen, wherein the display and control screen is simultaneously connected with the power supply assembly and the main control microcomputer board, and the main control microcomputer board can display the monitored state of the thyristor on the display and control screen.
3. The on-line monitoring device for the controlled silicon in the rectifying equipment as claimed in claim 1, further comprising a signal amplifying unit connected to the power supply assembly, wherein two ends of the signal amplifying unit are respectively connected to the first isolating unit and the main control microcomputer board.
4. The on-line monitoring device for the controlled silicon in the rectifying equipment as claimed in claim 3, further comprising a second isolation unit connected to the power supply assembly, wherein two ends of the second isolation unit are respectively connected to the signal amplification unit and the main control microcomputer board.
5. The silicon controlled online monitoring device for the rectifying equipment as claimed in claim 4, wherein the first isolation unit is an electrical isolation transformer, and the second isolation unit is a photocoupler.
6. The silicon controlled on-line monitoring device for the rectifying equipment as claimed in claim 5, wherein the power supply assembly comprises a 220V power supply and a voltage reduction unit connected with the power supply, the voltage reduction unit is used for reducing the voltage of the power supply to 5V, and the voltage reduction unit is respectively connected with the signal amplification unit, the second isolation unit and the main control microcomputer board.
7. The silicon controlled online monitoring device for the rectifying equipment as claimed in claim 1, wherein the master control microcomputer board is provided with an alarm output interface for connecting with a warning lamp and/or a warning horn so as to alarm through the warning lamp and/or the warning horn when the state of the silicon controlled is abnormal.
8. The silicon controlled online monitoring device for the rectifying equipment as claimed in claim 1, wherein the master control microcomputer board is provided with a 485 communication interface for connecting with a PLC.
9. The silicon controlled online monitoring device for the rectifying equipment as claimed in claim 1, wherein the main control microcomputer board is provided with an ethernet communication interface for connecting with an upper computer.
10. The on-line monitoring device for the controlled silicon in the rectifying equipment as claimed in claim 1, further comprising an installation housing, wherein the installation housing comprises a bottom case and a cover plate covering the bottom case, the main control microcomputer board is disposed in the bottom case, an avoiding groove is disposed on the bottom case, and the avoiding groove is used for exposing the interface on the main control microcomputer board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122602006.4U CN216531093U (en) | 2021-10-28 | 2021-10-28 | Silicon controlled on-line monitoring device for rectifying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122602006.4U CN216531093U (en) | 2021-10-28 | 2021-10-28 | Silicon controlled on-line monitoring device for rectifying equipment |
Publications (1)
| Publication Number | Publication Date |
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| CN216531093U true CN216531093U (en) | 2022-05-13 |
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| CN202122602006.4U Active CN216531093U (en) | 2021-10-28 | 2021-10-28 | Silicon controlled on-line monitoring device for rectifying equipment |
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| CN (1) | CN216531093U (en) |
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2021
- 2021-10-28 CN CN202122602006.4U patent/CN216531093U/en active Active
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