CN103334800B - Monitoring protection device of steam turbine - Google Patents
Monitoring protection device of steam turbine Download PDFInfo
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- CN103334800B CN103334800B CN201310205755.0A CN201310205755A CN103334800B CN 103334800 B CN103334800 B CN 103334800B CN 201310205755 A CN201310205755 A CN 201310205755A CN 103334800 B CN103334800 B CN 103334800B
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Abstract
The invention discloses a monitoring protection device of a steam turbine, which comprises a power supply module, a plurality of channel modules connected with a power supply module, a main control communication module, a display screen and communication buses, wherein the display screen is connected with the main control communication module; the channel modules and the main communication module are connected with the communication buses respectively; and the main control communication module is connected with a plurality of interfaces. The channel modules are connected with the main control communication module by the communication buses; the main control communication module serves as a main station, the channel modules serve as slave stations, the main station can send a control instruction or data, and the slave stations execute corresponding movement after receiving the instruction, so that monitoring parameters can be transmitted mutually, and parameter setting can be subjected to centralized management.
Description
Technical field
The present invention relates to a kind of turbine monitoring protective device.
Background technology
Traditional turbine monitoring protective device, mainly contains some deficiency:
1, each functional module of instrument is separate, and monitoring parameter can not transmit mutually, and optimum configurations can not be managed concentratedly;
2, the zero-bit of instrument and full scale value potentiometer adjust, long-time use after, will data wander be there is, the phenomenon of the failure of saltus step;
3, adopt 3 or 4 LED numeral method, can only show main monitoring parameter, arranging menu can only replace by simple English or Chinese pinyin, and each producer to arrange menu different, there is menu and be difficult to understand, operate complicated shortcoming;
4, do not have communication function, monitoring parameter can only be uploaded by the analog signals of standard or on-off model;
5, each functional module of instrument can not the duty of monitoring sensor, and working sensor is abnormal alerting signal can not occur;
6, instrument does not have data storing function, does not have emergency review function maybe can not check history curve and trend map;
7, adopt traditional transformer to add the form of voltage of voltage regulation, the power supply scope of application is little, and power attenuation is large, and temperature is high.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, the turbine monitoring protective device of a kind of degree of precision and better stability is provided.
For achieving the above object, technical scheme of the present invention there is provided a kind of turbine monitoring protective device, comprise power module, the some channel modules be connected with described power module, master control communication module and display screen, described display screen and described master control communication module are connected, also comprise communication bus, some described channel modules, described main communication module is connected with described communication bus respectively, described master control communication module is connected with some interfaces, some described channel modules will detect that the parameter signal of steam turbine is transferred to described master control communication module by described communication bus and processes, described master control communication module processing signals feeds back to corresponding described channel module by described communication bus, processing signals is simultaneously exported by some described interfaces, microprocessor is provided with in described master control communication module, described channel module comprises the joining sensor detecting unit with described microprocessor, Sensor monitoring unit and sensor control unit, described microprocessor and described communication bus are connected, described sensor detecting unit comprises Sensor bias, sensor, signal conditioner, adjustable height bandpass filter, real effective turns device, 16 A/D converters, the output signal of described Sensor bias is successively by described sensor, described signal conditioner, described adjustable height bandpass filter, described real effective turns device, 16 described A/D converters are transferred to described microprocessor, the output signal of described microprocessor is transferred to described Sensor bias respectively, described signal conditioner, described adjustable height bandpass filter, described Sensor monitoring unit comprise for receiving sensor output signal sensor states monitor, for receive described sensor states monitor output signal follower, export for the BUF signal receiving the output signal of described follower, the output signal of described sensor states monitor is connected with described microprocessor, described sensor control unit comprises D/A converter, V/I converter, photoisolator, switching value output module, the output signal of described microprocessor is exported by described D/A converter, described V/I converter successively, and the output signal of described microprocessor is exported by described photoisolator, described switching value output module successively.
As preferably, be connected by the hot-swappable impact damper of bus between described communication bus and described microprocessor.
As preferably, described channel module comprises at least two two-channel vibrating functional modules, binary channels axial displacement module, binary channels thermal expansion module, binary channels rotating speed module, single channel rotating speed module, binary channels is swollen differential mode block, binary channels fuel level in tank module, the eccentric module of binary channels.
As preferably, some described interfaces comprise printer serial line interface, communication interface and Ethernet interface.
As preferably, described communication bus being connected with ESD electrostatic defending module, reducing the generation of electrostatic by arranging ESD electrostatic defending module, be beneficial to protection components and parts and be not damaged.
As preferably, described display screen is 10.2 cun of very color touching liquid-crystal display screens, and resolution is up to 1024 ﹡ 600,10.7M colour band touch-screens, and brightness can 64 grades of adjustments.
As preferably, described power module is that AC/220V turns DC/24V dual power supply redundancy module, and the power supply scope of application is large, and power attenuation is little, and temperature is low.
As preferably, be provided with micro-chip processor in described microprocessor, in described A/D converter, be provided with A/D conversion chip, in described D/A converter, be provided with D/A conversion chip, all tuning parameters and calibrating parameters all can store with digital form, have emergency review function.
Advantage of the present invention and beneficial effect are:
1, each channel module, master control communication module are all connected by communication bus, by master control communication module as main website, channel module is as slave station, main website can sending controling instruction or data, corresponding action is performed after receiving instruction, monitoring parameter can be transmitted mutually, and optimum configurations can be managed concentratedly;
2, have employed the treatment circuit of total digitalization, cancel adjustable potentiometer, all tuning parameters and calibrating parameters all can store with digitized form;
3, adopt 10.2 cun of very color touching liquid-crystal display screens, resolution is up to 1024 ﹡ 600,10.7M colour band touch-screens, and brightness can 64 grades of adjustments.
Accompanying drawing explanation
Fig. 1 is system chart of the present invention;
Fig. 2 is the signal transacting block diagram of two-channel vibrating functional module.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of turbine monitoring protective device, comprise power module, the some channel modules be connected with power module, master control communication module and display screen, display screen and master control communication module are connected, also comprise communication bus, some channel modules, main communication module is connected with communication bus respectively, master control communication module is connected with printer serial line interface, communication interface and Ethernet interface, channel module comprises two two-channel vibrating functional modules, binary channels axial displacement module, binary channels thermal expansion module, binary channels rotating speed module, single channel rotating speed module, binary channels is swollen differential mode block, binary channels fuel level in tank module, the eccentric module of binary channels, each channel module, master control communication module is all connected by communication bus, by master control communication module as main website, channel module is as slave station, main website can sending controling instruction or data, corresponding action is performed after receiving instruction, monitoring parameter can be transmitted mutually, optimum configurations can be managed concentratedly, some described channel modules will detect that the parameter signal of steam turbine is transferred to described master control communication module by described communication bus and processes, described master control communication module processing signals feeds back to corresponding described channel module by described communication bus, processing signals is simultaneously exported by some described interfaces.
As shown in Figure 2, microprocessor is provided with in master control communication module, channel module comprises the joining sensor detecting unit with microprocessor, Sensor monitoring unit and sensor control unit, microprocessor and communication bus are connected, sensor detecting unit comprises Sensor bias, sensor, signal conditioner, adjustable height bandpass filter, real effective turns device, 16 A/D converters, the output signal of Sensor bias passes through sensor successively, signal conditioner, adjustable height bandpass filter, real effective turns device, 16 A/D converters are transferred to microprocessor, the output signal of microprocessor is transferred to Sensor bias respectively, signal conditioner, adjustable height bandpass filter, Sensor monitoring unit comprises the sensor states monitor for receiving sensor output signal, the follower for receiving sensor state monitor output signal, exports for the BUF signal receiving the output signal of follower, and the output signal of sensor states monitor is connected with microprocessor, sensor control unit comprises D/A converter, V/I converter, photoisolator, switching value output module, the output signal of microprocessor is exported by D/A converter, V/I converter successively, and the output signal of microprocessor is exported by photoisolator, switching value output module successively.
As shown in Figure 2, be connected by the hot-swappable impact damper of bus between communication bus with microprocessor.
As shown in Figure 1, communication bus being connected with ESD electrostatic defending module, reducing the generation of electrostatic by arranging ESD electrostatic defending module, be beneficial to protection components and parts and be not damaged.
As shown in Figure 1, display screen is 10.2 cun of very color touching liquid-crystal display screens, and resolution is up to 1024 ﹡ 600,10.7M colour band touch-screens, and brightness can 64 grades of adjustments.
As shown in Figure 1, power module is that AC/220V turns DC/24V dual power supply redundancy module, and the power supply scope of application is large, and power attenuation is little, and temperature is low.
Be provided with micro-chip processor in microprocessor, be provided with A/D conversion chip in A/D converter, be provided with D/A conversion chip in D/A converter, all tuning parameters and calibrating parameters all can store with digital form, have emergency review function.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a turbine monitoring protective device, comprise power module, the some channel modules be connected with described power module, master control communication module and display screen, described display screen and described master control communication module are connected, it is characterized in that: also comprise communication bus, some described channel modules, described main communication module is connected with described communication bus respectively, described master control communication module is connected with some interfaces, some described channel modules will detect that the parameter signal of steam turbine is transferred to described master control communication module by described communication bus and processes, described master control communication module processing signals feeds back to corresponding described channel module by described communication bus, processing signals is simultaneously exported by some described interfaces, microprocessor is provided with in described master control communication module, described channel module comprises the joining sensor detecting unit with described microprocessor, Sensor monitoring unit and sensor control unit, described microprocessor and described communication bus are connected, described sensor detecting unit comprises Sensor bias, sensor, signal conditioner, adjustable height bandpass filter, real effective turns device, 16 A/D converters, the output signal of described Sensor bias is successively by described sensor, described signal conditioner, described adjustable height bandpass filter, described real effective turns device, 16 described A/D converters are transferred to described microprocessor, the output signal of described microprocessor is transferred to described Sensor bias respectively, described signal conditioner, described adjustable height bandpass filter, described Sensor monitoring unit comprise for receiving sensor output signal sensor states monitor, for receive described sensor states monitor output signal follower, export for the BUF signal receiving the output signal of described follower, the output signal of described sensor states monitor is connected with described microprocessor, described sensor control unit comprises D/A converter, V/I converter, photoisolator, switching value output module, the output signal of described microprocessor is exported by described D/A converter, described V/I converter successively, and the output signal of described microprocessor is exported by described photoisolator, described switching value output module successively.
2. turbine monitoring protective device as claimed in claim 1, be is characterized in that: be connected by the hot-swappable impact damper of bus between described communication bus and described microprocessor.
3. turbine monitoring protective device as claimed in claim 1, is characterized in that: described channel module comprises at least two two-channel vibrating functional modules, binary channels axial displacement module, binary channels thermal expansion module, binary channels rotating speed module, single channel rotating speed module, binary channels is swollen differential mode block, binary channels fuel level in tank module, the eccentric module of binary channels.
4. turbine monitoring protective device as claimed in claim 1, is characterized in that: some described interfaces comprise printer serial line interface, communication interface and Ethernet interface.
5. turbine monitoring protective device as claimed in claim 1, is characterized in that: described communication bus is connected with ESD electrostatic defending module.
6. turbine monitoring protective device as claimed in claim 1, is characterized in that: described display screen is 10.2 cun of very color touching liquid-crystal display screens.
7. turbine monitoring protective device as claimed in claim 1, is characterized in that: described power module is that AC/220V turns DC/24V dual power supply redundancy module.
8. turbine monitoring protective device as claimed in claim 1, is characterized in that: be provided with micro-chip processor in described microprocessor, is provided with A/D conversion chip in described A/D converter, be provided with D/A conversion chip in described D/A converter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310205755.0A CN103334800B (en) | 2013-05-28 | 2013-05-28 | Monitoring protection device of steam turbine |
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| CN201310205755.0A CN103334800B (en) | 2013-05-28 | 2013-05-28 | Monitoring protection device of steam turbine |
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| CN103334800B true CN103334800B (en) | 2015-04-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105136282A (en) * | 2015-05-29 | 2015-12-09 | 江阴市华恒仪表有限公司 | Vibration monitoring protection instrument |
| US20210123835A1 (en) * | 2019-10-28 | 2021-04-29 | Everactive, Inc. | Machine health monitoring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007147617A1 (en) * | 2006-06-23 | 2007-12-27 | Ab Skf | Vibration and condition monitoring system and the parts thereof |
| CN201142011Y (en) * | 2007-10-13 | 2008-10-29 | 德阳瑞能电力科技有限公司 | Rotating machinery safety monitoring device |
| US8328514B2 (en) * | 2009-09-11 | 2012-12-11 | General Electric Company | System and methods for determining a monitor set point limit for a wind turbine |
| CN101956578B (en) * | 2010-09-25 | 2013-08-14 | 浙江大学 | Vibration data collection and fault analysis system of networking portable type steam turbine set |
| CN201852636U (en) * | 2010-11-11 | 2011-06-01 | 夏惠兴 | Two-channel vibration monitoring protection instrument |
| CN202350906U (en) * | 2011-10-21 | 2012-07-25 | 无锡市厚德自动化仪表有限公司 | Combined rotating machinery monitoring protection system |
| CN203347851U (en) * | 2013-05-28 | 2013-12-18 | 江阴市华恒仪表有限公司 | Monitoring and protecting apparatus for steam turbine |
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