CN203349960U - Temperature monitoring system used for explosion-proof motor - Google Patents
Temperature monitoring system used for explosion-proof motor Download PDFInfo
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- CN203349960U CN203349960U CN201320323162.XU CN201320323162U CN203349960U CN 203349960 U CN203349960 U CN 203349960U CN 201320323162 U CN201320323162 U CN 201320323162U CN 203349960 U CN203349960 U CN 203349960U
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- temperature
- flame
- signal
- electric motor
- proof electric
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Abstract
The utility model provides a temperature monitoring system used for an explosion-proof motor. The system comprises temperature acquisition elements, a signal transmission network module, a data processing module and an explosion-proof motor. At least one temperature acquisition element is buried in each phase stator winding of the explosion-proof motor. At least one temperature acquisition element is buried in a drive end of a bearing of the explosion-proof motor. At least one temperature acquisition element is buried in a non-drive end of the bearing of the explosion-proof motor. The temperature acquisition elements collect temperature analog signals of the explosion-proof motor. The signal transmission network module converts the collected temperature analog signals to digital signals and transmits the signals to the data processing module. The system directly measures temperature of the stator and the bearing of the explosion-proof motor, and achieves upload of the temperature data through a limited number of communication wires, so that hidden faults can be found in advance, accident expansion is prevented, and an aging speed of devices is reduced. The system saves great cable materials and assembly cost and improves automatic management level.
Description
Technical field
The utility model relates to device temperature monitoring system in a kind of oil refining, petrochemical field, relates in particular to a kind of temperature monitoring system for flame-proof electric motor.
Background technology
Oil refining, too high the abnormal of electric current on motor circuit that often can not cause of flame-proof electric motor operation temperature rise in petrochemical equipment, overload protection is failure to actuate; And motor is for a long time in temperature rise, too high state can cause the fault such as bearing breaking, seize of motor, even can breaking out of fire, blast, so the temperature protection of flame-proof electric motor is also just arisen at the historic moment.At present motor temperature protection also rests on the personnel of teams and groups the detect all motors every day one by one level of operation temperature rise with the far-infrared temperature measuring instrument mostly, or temperature display meter is installed on the spot.Although this day-to-day operation mode discovery accident in advance effectively occurs, workman's workload is quite large, with the oil refining that day by day improves automaticity, petroleum chemical enterprise's operation mode, does not conform to fully, lacks the motor cluster temperature is unified to monitoring management.
Existing temperature monitoring system is the point-to-point data transfer mode of simulating signal, and each simulating signal needs a control cables transmission, and the cable consumable quantity is large.
Therefore, be badly in need of in the art at present the temperature monitoring system of an anti-explosion electric group of planes, it possesses the functions such as many anti-explosion electric machine stators of real-time automatic monitoring and bearing temperature and remote measurement, remote signalling, warning, tripping operation.
The utility model content
The utility model manually reaches greatly without unified temperature monitoring system problem of management motor temperature collecting work amount on the spot for solving, and a kind of temperature monitoring system for flame-proof electric motor is provided.Can realize the centralized management such as direct remote measurement, communication, overtemperature alarm, tripping operation.
The technical solution of the utility model is as follows:
A kind of temperature monitoring system for flame-proof electric motor, comprise data acquisition module 1, signal transmission network module 2, data processing module 3 and motor to be measured; Described data acquisition module inputs to described data processing module 3 by signal by described signal transmission network module 2 after to motor temperature collection to be measured, and data are carried out to analyzing and processing;
Described motor is flame-proof electric motor 4; Described data acquisition module 1 comprises one group of temperature acquisition element; Described one group of temperature acquisition element is arranged in described flame-proof electric motor 4;
Described data acquisition module 1 also comprises signal input converter 1-2; Described one group of temperature acquisition element is inputted described signal input converter 1-2 by the temperature analog signal of collection, and described signal input converter 1-2 is the temperature analog signal audio digital signals that superposes, and signal is exported to described signal transmission network module 2.Described data transmission network module 2 comprises Network Physical Separator 2-2 and signal receiver 2-3; Between described signal input converter 1-2, Network Physical Separator 2-2 and signal receiver 2-3, by connection 2-1 signal, connect;
The input end of described Network Physical Separator 2-2 is connected with the output terminal of described signal input converter 1-2 by described connection 2-1; The output terminal of described Network Physical Separator 2-2 is connected with the input end of described signal receiver 2-3 by described connection 2-1, and the output terminal of described signal receiver 2-3 is connected with described data processing module 3 by connection 2-1.
Described data processing module 3 comprises display unit, signal comparing unit and storage unit; The digital signal collected is stored, show and carry out data relatively.
Described temperature acquisition element is wherein a kind of in Thermistor Temperature Measurement device 1-1 or thermocouple temperature measurement device.
The collection of temperature acquisition element be 4～20mA temperature analog signal, audio digital signals superposes on the temperature analog signal that signal input converter 1-2 collects described temperature acquisition element.
The utility model adopts the HART communications protocol, what the temperature acquisition element collected is the low frequency analog signals, the fabric width that superposes on the low frequency analog signals by input converter 1-2 is the 0.5mA audio digital signals, thereby and forms two-way data communication between signal receiver 2-3.
To the superpose analog signal conversion of audio digital signals of described signal receiver 2-3 is digital signal.Connection 2-1 between described signal input converter 1-2 and described Network Physical Separator 2-2 adopts the setting of two-way redundancy.
In order to realize that the Real-time Collection of flame-proof electric motor is measured, described one group of temperature acquisition element is arranged in described flame-proof electric motor 4: at least be embedded with a described temperature acquisition element in every phase stator winding of described flame-proof electric motor 4, at least be embedded with a described temperature acquisition element in the drive end of described flame-proof electric motor 4 bearings, at least be embedded with a described temperature acquisition element in the anti-drive end of described flame-proof electric motor 4 bearings;
One group of described temperature acquisition element is for gathering the temperature analog signal of described flame-proof electric motor 4, and described signal transmission network module 2 transfers to described data processing module 3 after the temperature analog signal of collection is converted to digital signal.
In order to realize the collection and monitor of many flame-proof electric motors, after can being gathered multiple motors, input to described signal input converter 1-2.Described temperature monitoring system comprises one group of described motor to be measured, and described signal input converter 1-2 receives the temperature signal of at least one motor to be measured of conversion;
The output terminal of one group of described temperature acquisition element of one group of described motor to be measured gathers the input end that is connected to described signal input converter 1-2, and the output terminal of described signal input converter 1-2 is connected with the input end of described signal transmission network module 2.
Similar, the utility model can be transmitted and be processed the digital signal of multichannel, and the quantity of described signal input converter 1-2 is one group; One group of described signal input converter 1-2 is arranged in parallel, the input end of each described signal input converter 1-2 is connected with one group of temperature acquisition element respectively, and described signal input converter 1-2 output terminal gathers the input end that is connected to described signal transmission network module 2.
In concrete enforcement, the output terminal of every two described signal input converter 1-2 is connected with the input end of described signal transmission network module 2 by sharing a described connection 2-1.
In order to work after the damage that prevents acquisition elements, described one group of temperature acquisition element comprises one group of standby acquisition elements,, in described every phase stator winding, is provided with described standby acquisition elements in the drive end of bearing and anti-drive end.Two described temperature acquisition elements, the using and the reserved have been arranged in parallel respectively in every phase stator winding of described flame-proof electric motor 4; Two described temperature acquisition elements have been arranged in parallel in the drive end of described flame-proof electric motor 4 bearings, the using and the reserved; Two described temperature acquisition elements have been arranged in parallel in the anti-drive end of described flame-proof electric motor 4 bearings, the using and the reserved.
Connection 2-1 between described signal input converter 1-2 and described Network Physical Separator 2-2 is the setting of two-way parallel redundancy; Connection 2-1 between described Network Physical Separator 2-2 and described signal receiver 2-3 is the setting of two-way parallel redundancy.
The wire laying mode of two-way data communication is to connect signal input converter 1-2 and signal receiver 2-3 with a connection 2-1.So-called two-way just referring between input converter 1-2 and signal receiver 2-3 has the exchanges data communication.The signal exchanged between them is neither pure simulating signal, neither serial digital signal, and be that the stack fabric width is the 0.5mA audio digital signals on the low frequency analog signals.
What described connection 2-1 transmitted is simulating signal.In the cable laying of oil refining, petrochemical equipment, with the transmission of digital amount, compare and have the advantages that antijamming capability is strong.
To the superpose analog signal conversion of audio digital signals of described signal receiver 2-3 is serial digital signal.
The effect of described Network Physical Separator 2-2 is the energy of restriction communication network, to promote security.
In concrete enforcement,
Described flame-proof electric motor 4 is threephase motor.
Maximum 62 the signal input converter 1-2 of access that allow in data acquisition module 1, maximum 16 the temperature acquisition elements of access that allow of the input end of every signal input converter 1-2;
Every maximum 2 signal input converter 1-2 of access that allow of signal receiver 2-3;
Maximum 31 the signal receiver 2-3 of access that allow of data processing module 3.
Principle of work of the present utility model is:
The stator of flame-proof electric motor and bearing temperature signal are by data acquisition module 1 collecting temperature signal, be transferred to data processing module 3 by data transmission network module 2 and carry out data judging and Treatment Analysis, finally on existing Computerized monitor system, carry out information demonstration and storage;
Every flame-proof electric motor 4 generally has 5 points for measuring temperature; A terminal box is arranged on the shell of flame-proof electric motor 4, the stator of flame-proof electric motor 4 and bearing temperature signal are drawn from flame-proof electric motor 4.
Data transmission network module 2 adopts the HART communications protocol, with a described connection 2-1, data is inputted from data acquisition module 1, through described Network Physical Separator 2-2, transfers to described data sink 2-3.Data acquisition module 1 does not need to provide power supply, so, without power lead, network structure is simple.
Presentation Function: in existing Computerized monitor system, display screen arranges changeable picture, shows temperature value or the history curve of the Real-Time Monitoring of each temperature acquisition element.
Memory function: preserve Monitoring Data and backup.
Remove function: remove the warning list, remove accumulation numerical value.
The communications parameter function is set: set the parameter relevant with communication, as the setting data input channel is the parameter of data sink 2-3, output printer parameter etc.
The alarm parameters function is set: can be to alarming value of each temperature acquisition components set.When real-time measurement numerical value surpasses alarming value, existing Computerized monitor system will send sound and light alarm; Can give trip value of each temperature acquisition components set.When real-time measurement numerical value surpasses trip value, existing Computerized monitor system will send trip signal to current supply circuit, the motor shutdown of cutting off the power supply; Thereby realize the purpose of monitoring, early warning and motor overheating trip protection, realize the unified monitoring management of many anti-explosion electric machine stators of long-range real-time automatic monitoring and bearing temperature.
Temperature monitoring system of the present utility model can be used for the equipment such as oil refining, the compressor in petrochemical equipment, blower fan, pump.
Compared with prior art, the utlity model has following advantage:
1) the utility model is stator and the bearing temperature of directly measuring motor cluster; reacting its internal temperature than the measurement motor current changes more direct; expanded traditional overload protection function; can find in advance potential faults by the monitoring motor temperature; trouble-saving extension, reduce ageing equipment speed.
2) the utility model data transmission network, first on the simulating signal gathered, the stack audio digital signals carries out data transmission, temperature data is realized uploading by a connection, with the point-to-point transmission mode of traditional simulating signal, compare, saved a large amount of cable materials, its corresponding construction and installation workload and engineering cost also reduce thereupon.After will the superpose analog signal conversion of audio digital signals be digital signal, transfer to data handling system, well with existing electric Computerized monitor system, be combined, without increasing too much equipment.
3) in the utility model, the data transmission between data transmission network and electric Computerized monitor system only need configure an address card be complementary with communications protocol, has greatly saved the data input port of supervisory system and the quantity of delivery outlet.
4) the utility model has been set up a temperature and has been unified management system for monitoring, can many anti-explosion electric machine stators of long-range real-time automatic monitoring and bearing temperature, saved human load, and improved automatic management level.
The accompanying drawing explanation
The structural representation that Fig. 1 is a kind of temperature monitoring system for flame-proof electric motor of the present utility model;
Fig. 2 is Thermistor Temperature Measurement element wiring diagram;
The drawing reference numeral explanation:
The 1-data acquisition module; 2-data transmission network module; The 3-data processing module;
The 4-flame-proof electric motor;
1-1 Thermistor Temperature Measurement device; 1-2 signal input converter;
The 2-1 connection; The 2-2 Network Physical Separator; The 2-3 signal receiver;
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail, protection domain of the present utility model is not limited to following embodiment.
Embodiment
As shown in Figure 1, a kind of temperature monitoring system of an anti-explosion electric group of planes, comprise data acquisition module 1, signal transmission network module 2, data processing module 3 and flame-proof electric motor 4; Described acquisition module 1, signal transmission network module 2 and data processing module 3 connect successively;
Described data acquisition module 1 comprises Thermistor Temperature Measurement device 1-1 and signal input converter 1-2;
Described data transmission network module 2 comprises connection 2-1, Network Physical Separator 2-2 and signal receiver 2-3;
Wherein, the quantity of signal receiver 2-3 is 31, and the output terminal of 31 signal receiver 2-3 gathers and is connected to data processing module 3, and the input end of each signal receiver 2-3 is connected with Network Physical Separator 2-2 by connection 2-1 respectively.
The quantity of signal input converter 1-2 is 62, and the output terminal of every two signal input converter 1-2 is connected with the input end of described Network Physical Separator 2-2 by a connection 2-1 who shares;
The distolateral Thermistor Temperature Measurement device 1-1 that is arranged in parallel respectively 16 flame-proof electric motors 4 of the input of each signal input converter 1-2.
Adopted omissive representation in Fig. 1, i.e. distolateral of the input of each signal input converter 1-2 has drawn 2 flame-proof electric motors 4, and all the other mean with suspension points; Signal input converter 1-2 has only drawn 4, and all the other mean with suspension points; Signal receiver 2-3 has only drawn 2, and all the other mean with suspension points.
In Fig. 1, two arrows of signal input converter 1-2 output terminal, mean that the connection 2-1 between signal input converter 1-2 and described Network Physical Separator 2-2 is the setting of two-way parallel redundancy; Connection 2-1 between Network Physical Separator 2-2 and signal receiver 2-3 is the setting of two-way parallel redundancy.
Change an arrow into through signal receiver 2-3, the connection 2-1 between representation signal receiver 2-3 and data processing module 3 only has a road.
Flame-proof electric motor 4 is threephase motor, buries respectively 2 Thermistor Temperature Measurement device 1-1 in every phase stator winding of flame-proof electric motor 4 underground, and 2 Thermistor Temperature Measurement device 1-1 are arranged in parallel, the using and the reserved.
Be embedded with respectively 1 Thermistor Temperature Measurement device 1-1 in the drive end of the bearing of flame-proof electric motor 4 and the anti-drive end of bearing;
The output terminal of Thermistor Temperature Measurement device 1-1 in each flame-proof electric motor 4 gathers the input end that is connected to described signal input converter 1-2.
As shown in Figure 2, on the shell of flame-proof electric motor 4, terminal box is set, the stator of flame-proof electric motor 4 and bearing temperature signal are drawn from flame-proof electric motor 4.
The rectangle of the upper part of Fig. 2 is Thermistor Temperature Measurement device 1-1, and the cone-shaped body at middle part is three lines of Thermistor Temperature Measurement device 1-1 three-wire system wiring, and the Wiring port of bottom is the connection terminal in flame-proof electric motor 4 terminal boxes.
Technique scheme is a kind of embodiment of the present utility model, for those skilled in the art, on the basis that the utility model discloses application process and principle, be easy to make various types of improvement or distortion, and be not limited only to the described structure of the above-mentioned embodiment of the utility model, therefore previously described mode is preferably, and does not have restrictive meaning.
Claims (9)
1. the temperature monitoring system for flame-proof electric motor, is characterized in that: comprise data acquisition module (1), signal transmission network module (2), data processing module (3) and motor to be measured; Described data acquisition module inputs to described data processing module (3) by signal by described signal transmission network module (2) after motor temperature to be measured is gathered, and data are carried out to analyzing and processing;
Described motor is flame-proof electric motor (4); Described data acquisition module (1) comprises one group of temperature acquisition element; Described one group of temperature acquisition element is arranged in described flame-proof electric motor (4);
Described data acquisition module (1) also comprises signal input converter (1-2); Described one group of temperature acquisition element is inputted described signal input converter (1-2) by the temperature analog signal of collection, described signal input converter (1-2) is the temperature analog signal audio digital signals that superposes, and signal is exported to described signal transmission network module (2).
2. a kind of temperature monitoring system for flame-proof electric motor according to claim 1 is characterized in that:
Described one group of temperature acquisition element is arranged in described flame-proof electric motor (4): at least be embedded with a described temperature acquisition element in every phase stator winding of described flame-proof electric motor (4), at least be embedded with a described temperature acquisition element in the drive end of described flame-proof electric motor (4) bearing, at least be embedded with a described temperature acquisition element in the anti-drive end of described flame-proof electric motor (4) bearing;
One group of described temperature acquisition element is for gathering the temperature analog signal of described flame-proof electric motor (4), and described signal transmission network module (2) transfers to described data processing module (3) after the temperature analog signal of collection is converted to digital signal.
3. a kind of temperature monitoring system for flame-proof electric motor according to claim 1 is characterized in that:
Described temperature monitoring system comprises one group of described motor to be measured, and described signal input converter (1-2) receives the temperature signal of at least one motor to be measured of conversion;
The output terminal of one group of described temperature acquisition element of one group of described motor to be measured gathers the input end that is connected to described signal input converter (1-2), and the output terminal of described signal input converter (1-2) is connected with the input end of described signal transmission network module (2).
4. according to the described a kind of temperature monitoring system for flame-proof electric motor of claim 1 or 3, it is characterized in that:
The quantity of described signal input converter (1-2) is one group; One group of described signal input converter (1-2) is arranged in parallel, the input end of each described signal input converter (1-2) is connected with one group of temperature acquisition element respectively, and described signal input converter (1-2) output terminal gathers the input end that is connected to described signal transmission network module (2).
5. a kind of temperature monitoring system for flame-proof electric motor according to claim 1 and 2 is characterized in that:
Described one group of temperature acquisition element comprises one group of standby acquisition elements,, in described every phase stator winding, is provided with described standby acquisition elements in the drive end of bearing and anti-drive end.
6. a kind of temperature monitoring system for flame-proof electric motor according to claim 1 is characterized in that:
Described data transmission network module (2) comprises Network Physical Separator (2-2) and signal receiver (2-3); Between described signal input converter (1-2), Network Physical Separator (2-2) and signal receiver (2-3), by connection (2-1) signal, connect;
The input end of described Network Physical Separator (2-2) is connected with the output terminal of described signal input converter (1-2) by described connection (2-1); The output terminal of described Network Physical Separator (2-2) is connected with the input end of described signal receiver (2-3) by described connection (2-1), and the output terminal of described signal receiver (2-3) is connected with described data processing module (3) by connection (2-1).
7. a kind of temperature monitoring system for flame-proof electric motor according to claim 6 is characterized in that:
Connection (2-1) between described signal input converter (1-2) and described Network Physical Separator (2-2) arranges for the two-way parallel redundancy;
Connection (2-1) between described Network Physical Separator (2-2) and described signal receiver (2-3) arranges for the two-way parallel redundancy.
8. a kind of temperature monitoring system for flame-proof electric motor according to claim 1 is characterized in that:
Described data processing module (3) comprises display unit, signal comparing unit and storage unit; The digital signal collected is stored, show and carry out data relatively.
9. a kind of temperature monitoring system for flame-proof electric motor according to claim 1 and 2 is characterized in that:
Described temperature acquisition element is wherein a kind of in Thermistor Temperature Measurement device (1-1) or thermocouple temperature measurement device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320323162.XU CN203349960U (en) | 2013-06-05 | 2013-06-05 | Temperature monitoring system used for explosion-proof motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320323162.XU CN203349960U (en) | 2013-06-05 | 2013-06-05 | Temperature monitoring system used for explosion-proof motor |
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| Publication Number | Publication Date |
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| CN203349960U true CN203349960U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320323162.XU Expired - Lifetime CN203349960U (en) | 2013-06-05 | 2013-06-05 | Temperature monitoring system used for explosion-proof motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166412A (en) * | 2014-08-12 | 2014-11-26 | 广西防城港核电有限公司 | Nuclear power station main pump stator temperature monitoring system and monitoring method thereof |
| CN108334048A (en) * | 2018-05-07 | 2018-07-27 | 珠海格力电器股份有限公司 | Data acquisition system |
| CN114113920A (en) * | 2020-08-26 | 2022-03-01 | 西门子股份公司 | Explosion-proof motor monitoring device |
-
2013
- 2013-06-05 CN CN201320323162.XU patent/CN203349960U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166412A (en) * | 2014-08-12 | 2014-11-26 | 广西防城港核电有限公司 | Nuclear power station main pump stator temperature monitoring system and monitoring method thereof |
| CN108334048A (en) * | 2018-05-07 | 2018-07-27 | 珠海格力电器股份有限公司 | Data acquisition system |
| CN114113920A (en) * | 2020-08-26 | 2022-03-01 | 西门子股份公司 | Explosion-proof motor monitoring device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |