CN210693426U - Protection system of resistance wire - Google Patents
Protection system of resistance wire Download PDFInfo
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- CN210693426U CN210693426U CN201921325792.4U CN201921325792U CN210693426U CN 210693426 U CN210693426 U CN 210693426U CN 201921325792 U CN201921325792 U CN 201921325792U CN 210693426 U CN210693426 U CN 210693426U
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- resistance wire
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- protection system
- detection data
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The utility model discloses a protection system of resistance wire, including moulded case circuit breaker, still include: the detection unit is arranged between the molded case circuit breaker and the resistance wire; the control switch is arranged between the detection unit and the resistance wire; the acquisition unit is connected with the detection unit, acquires detection data of the detection unit, processes the detection data and transmits the processed detection data to the control unit through the communication interface; the human-computer interface is in bidirectional communication connection with the control unit, acquires detection data of the resistance wire and sets protection parameters of the resistance wire; the control unit is electrically connected with the control switch and controls the control switch to be turned on or turned off according to the protection parameters. The protection value of the resistance wire is adjustable, and the adjusting range is wider; the detection data can be stored online and can be remotely checked; the occupied area is small, the space and the cost are saved, and the economical efficiency is improved; the remote fault diagnosis is realized, the workload of workers is reduced, and the working efficiency is improved.
Description
Technical Field
The utility model relates to an automatic control technical field, more specifically relates to a protection system of resistance wire.
Background
The oxidation resistance of the resistance wire is enhanced in the production process, but the resistance wire is influenced to a certain extent at high temperature due to various gases contained in the furnace, such as air, carbon atmosphere, sulfur atmosphere, hydrogen atmosphere, nitrogen atmosphere and the like, and although the various resistance wires are subjected to oxidation resistance treatment before leaving the factory, element damage can be caused to a certain extent in links of transportation, winding, installation and the like, so that overcurrent and short circuit are caused, the service life of the resistance wire is shortened, and the use of the boiler is endangered.
The protection system of current resistance wire generally all adopts moulded case circuit breaker to carry out overcurrent and short-circuit protection, as shown in fig. 1, moulded case circuit breaker 1 is connected with resistance wire 4 through control switch 3 (contactor), and its problem that exists includes: some molded case circuit breakers have single model functions and cannot have overcurrent protection and short circuit protection functions at the same time; the adjustable molded case circuit breaker has the advantages of small adjustment range, low precision, large volume, high cost and poor economy; information such as current cannot be directly read, recording cannot be stored, and remote data viewing is not facilitated.
Therefore, a resistance wire protection system is needed to be developed, the current protection value can be adjusted, data is convenient to store and can be remotely checked, centralized control is achieved, and the economy is improved; and the remote fault diagnosis saves human resources.
The information disclosed in this background section of the invention is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a protection system of resistance wire, it can realize that the current protection value is adjustable through human-computer interface and terminal processing unit's setting, is convenient for long-range look over and centralized control, improves the economic nature.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the protection system of the resistance wire comprises a molded case circuit breaker and further comprises:
the detection unit is arranged between the molded case circuit breaker and the resistance wire;
the control switch is arranged between the detection unit and the resistance wire;
the acquisition unit is connected with the detection unit, acquires the detection data of the detection unit, processes the detection data and transmits the processed detection data to the control unit through a communication interface;
the human-computer interface is in bidirectional communication connection with the control unit, acquires the detection data of the resistance wire and sets protection parameters of the resistance wire;
the control unit is electrically connected with the control switch and controls the control switch to be turned on or turned off according to the protection parameters.
Preferably, the protection system further comprises:
the cloud storage is connected with the control unit through GPRS (general packet radio service) to acquire the detection data in the control unit;
and the terminal processing unit is connected with the cloud storage through GPRS (general packet radio service), and is used for monitoring the detection data of the resistance wire in real time.
Preferably, the detection unit is a current transformer and/or a voltage transformer.
Preferably, the collecting unit is a current collecting plate and/or a voltage collecting plate.
Preferably, the control switch is a contactor.
Preferably, the communication interface adopts RS485 or RS 232.
Preferably, the control unit is a PLC or a single chip microcomputer.
Preferably, the number of the control switches corresponds to the number of the groups of the resistance wires.
The utility model has the advantages that:
1) the protection value of the resistance wire is adjustable through the arrangement of the human-computer interface, and the adjustment range is wider;
2) the detection data can be stored on line and can be remotely checked through the arrangement of the cloud storage;
3) the resistance wires are controlled in a centralized manner through the control unit, so that the occupied area is small, the space and the cost are saved, and the economical efficiency is improved;
4) through the setting of terminal processing unit, realize remote fault diagnosis, reduce staff's work load, improve work efficiency.
The protection system of the present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention with reference to the attached drawings, in which like reference numerals generally represent like parts in exemplary embodiments of the present invention.
Fig. 1 shows a schematic view of a protection device for a resistance wire of the prior art.
Fig. 2 shows a schematic view of a protection system for a resistance wire of an exemplary embodiment of the present invention.
Description of reference numerals:
1. a molded case circuit breaker; 2. a detection unit; 3. a control switch; 4. a resistance wire; 5. a collection unit; 6. a control unit; 7. a human-machine interface; 8. GPRS (general packet radio service); 9. a cloud storage; 10. and a terminal processing unit.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 2 shows a schematic view of a protection system for a resistance wire of an exemplary embodiment of the present invention.
As shown in fig. 2, the utility model provides a protection system of resistance wire, including moulded case circuit breaker 1, still include:
the detection unit 2 is arranged between the molded case circuit breaker 1 and the resistance wire 4;
the control switch 3 is arranged between the detection unit 2 and the resistance wire 4;
the acquisition unit 5 is connected with the detection unit 2, acquires the detection data of the detection unit 2, processes the detection data and transmits the processed detection data to the control unit 6 through a communication interface;
the human-computer interface 7 is in bidirectional communication connection with the control unit 6, acquires detection data of the resistance wire 4, and sets protection parameters of the resistance wire 4;
the control unit 6 is electrically connected with the control switch 3, and controls the control switch 3 to be turned on and off according to the protection parameters.
Further, the detecting unit 2 is a current transformer and/or a voltage transformer, and may preferably be a current transformer; the collecting unit 5 is a current collecting plate and/or a voltage collecting plate, and may preferably be a current collecting plate.
Wherein, the control switch 3 is a contactor, and the communication interface adopts RS 485.
Preferably, the control unit 6 is a PLC or a single chip microcomputer, and more preferably, a PLC.
The number of the control switches 3 corresponds to the number of the groups of the resistance wires 4, and the control signals sent by the PLC correspond to the number of the groups of the resistance wires 4 and the number of the contactors one by one.
Current transformer detects the electric current of resistance wire 4, give the current acquisition board with current signal transmission, the current acquisition board is handled through the transformation ratio, send current data for PLC through the RS485 interface in unison, through PLC and human-computer interface 7, the user can the each phase current of resistance wire 4 of visual observation, in addition, through 7 convenience of customers of human-computer interface adjustment electric current each protection parameter, through the protection parameter comparison processing of reading the current value in real time and user side settlement, PLC exportable control signal control contactor opens or closes, and then whether control resistance wire 4 switches on.
The current transformer selects a proper mutual inductance proportion according to the current of relevant equipment, and the number of the current collecting plates corresponds to the number of the groups of the resistance wires 4.
The protection value of the resistance wire 4 is adjustable through the arrangement of the human-computer interface 7, and the adjustment range is wider; the resistance wire 4 is controlled in a centralized manner through the control unit 6, the occupied area is small, the space and the cost are saved, and the economical efficiency is improved.
Preferably, the protection system further comprises:
the cloud storage 9 is connected with the control unit 6 through the GPRS8 to acquire detection data in the control unit 6;
and the terminal processing unit 10 is connected with the cloud storage 9 through the GPRS8 and used for monitoring the detection data of the resistance wire 4 in real time.
Further, the functions of the terminal processing unit 10 include:
the alarm device comprises a safety threshold function and an alarm function, wherein the detection data are compared with the safety threshold, and when the detection data exceed the safety threshold, the alarm module gives an alarm, and the alarm can be buzzing, vibrating and/or flashing.
The terminal processing unit 10 is a mobile phone and/or a computer, the PLC is connected with the GPRS8 through an RS485 interface, and the GPRS8 is connected with the cloud storage 9 through the Internet of things.
The PLC transmits the real-time operation data (current data) of the site to the cloud storage 9 through the GPRS8 for storage, a user and an equipment manager can monitor the real-time operation condition of the site through a mobile phone and/or a computer, a safety threshold value is set, and when the operation data is not within the safety threshold value, alarm inquiry can be carried out.
The detection data can be stored on line and can be remotely checked through the arrangement of the cloud storage 9; through the setting of terminal processing unit 10, realize remote fault diagnosis, reduce staff's work load, improve work efficiency.
Furthermore, when the acquisition unit selects the voltage acquisition board and the detection unit selects the voltage transformer, the principle is the same as that of current acquisition, and the description is omitted here.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (7)
1. The utility model provides a protection system of resistance wire, includes moulded case circuit breaker, its characterized in that, protection system still includes:
the detection unit is arranged between the molded case circuit breaker and the resistance wire;
the control switch is arranged between the detection unit and the resistance wire;
the acquisition unit is connected with the detection unit, acquires the detection data of the detection unit, processes the detection data and transmits the processed detection data to the control unit through a communication interface;
the human-computer interface is in bidirectional communication connection with the control unit, acquires the detection data of the resistance wire and sets protection parameters of the resistance wire;
the control unit is electrically connected with the control switch and controls the control switch to be turned on or turned off according to the protection parameters;
the protection system further comprises:
the cloud storage is connected with the control unit through GPRS (general packet radio service) to acquire the detection data in the control unit;
and the terminal processing unit is connected with the cloud storage through GPRS (general packet radio service), and is used for monitoring the detection data of the resistance wire in real time.
2. The protection system of the resistance wire according to claim 1, characterized in that said detection unit is a current transformer and/or a voltage transformer.
3. The protection system for the resistance wire according to claim 1, characterized in that said acquisition unit is a current acquisition plate and/or a voltage acquisition plate.
4. The protection system of the resistance wire according to claim 1, characterized in that said control switch is a contactor.
5. A protection system for a resistance wire as defined in claim 1, wherein said communication interface is RS485 or RS 232.
6. A protection system for a resistance wire as in claim 1, wherein the control unit is a PLC or a single chip microcomputer.
7. A protection system for resistance wires as in claim 1, wherein the number of control switches corresponds to the number of groups of resistance wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921325792.4U CN210693426U (en) | 2019-08-15 | 2019-08-15 | Protection system of resistance wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921325792.4U CN210693426U (en) | 2019-08-15 | 2019-08-15 | Protection system of resistance wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210693426U true CN210693426U (en) | 2020-06-05 |
Family
ID=70888241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921325792.4U Active CN210693426U (en) | 2019-08-15 | 2019-08-15 | Protection system of resistance wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210693426U (en) |
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2019
- 2019-08-15 CN CN201921325792.4U patent/CN210693426U/en active Active
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200615 Address after: 110 000 No. 20, No. 4 Street, Shenyang Economic and Technological Development Zone, Shenyang, Liaoning Province Patentee after: SHENYANG HENGJIU ANTAI ENVIRONMENTAL PROTECTION AND ENERGY SAVING TECHNOLOGY Co.,Ltd. Address before: 214000 20-6, Jinhui Road, wind power park, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: Wuxi Evergreen Antai New Energy Equipment Technology Co.,Ltd. |