CN103758584B - Car determination methods jumped by a kind of contactless no contact energy-saving turbine steam turbine - Google Patents
Car determination methods jumped by a kind of contactless no contact energy-saving turbine steam turbine Download PDFInfo
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- CN103758584B CN103758584B CN201310484809.1A CN201310484809A CN103758584B CN 103758584 B CN103758584 B CN 103758584B CN 201310484809 A CN201310484809 A CN 201310484809A CN 103758584 B CN103758584 B CN 103758584B
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Abstract
The invention discloses a kind of contactless no contact energy-saving turbine steam turbine and jump car determination methods, adopt current transformer, current transducer, transmit electric electromechanics flow data to long-range Distributed Control System DCS, judge whether turbine steam turbine jumps car fault according to motor current.Present invention achieves the judgement that car jumped by contactless contactless turbine steam turbine.
Description
Technical field
The present invention relates to turbine steam turbine field, be specially a kind of contactless no contact energy-saving turbine steam turbine and jump car determination methods.
Background technique
Energy-conservation turbine steam turbine is coaxially connected with motor with gas making blower fan, done work in turbine steam turbine by high temperature and high pressure steam, change low temperature and low pressure steam into, semi-water gas is manufactured for gas producing furnace as raw material vapour, driving electric machine and blower fan rotate simultaneously, reach energy-conservation object, kill two birds with one stone, very practical.Generally the controller of turbine steam turbine is arranged on scene, with Distributed Control System DCS in remote operation room apart from distant, turbine steam turbine once jump car, if operator can not Timeliness coverage, to have an impact to vapor pressure, will production technology be affected.
Summary of the invention
The object of this invention is to provide a kind of contactless no contact energy-saving turbine steam turbine and jump car determination methods, to solve the problem that prior art steam turbine jumping car is not easily found.
In order to achieve the above object, the technical solution adopted in the present invention is:
Car determination methods jumped by a kind of contactless no contact energy-saving turbine steam turbine, it is characterized in that: adopt current transformer, current transducer, in a wherein phase line of described current transformer access motor triple line, current transducer signal output terminal is connected with current transducer input end by signaling line, and current transducer output terminal is connected with long-range Distributed Control System DCS by long-range shielded signal line;
First actuating motor, motor drives turbine steam turbine and blower fan to rotate, now current transformer detects the ac small signal in the motor phase line of place, described ac small signal is linearly corresponding with motor triple line size of current, ac small signal changes the master meter signal linear corresponding with motor three phase circuit size into by current transducer again, described master meter signal is sent to long-range Distributed Control System DCS by long-range shielded signal line, and long-range Distributed Control System DCS obtains a motor current I1 according to master meter signal; Then main inlet throttle-stop valve is opened, high temperature and high pressure steam enters the acting of turbine steam turbine, promotes turbine steam turbine and rotates, simultaneously driving electric machine and blower fan running, long-range Distributed Control System DCS to be got back a motor current I2 by current transformer, current transducer, and I2 will be far smaller than I1; According to motor current I1 and I2, set the judgement electric current I 3=I2+ (I1-I2)/2 during a turbine steam turbine fault;
When turbine steam turbine works, motor operation, when the motor current I that long-range Distributed Control System DCS obtains is less than I3, long-range Distributed Control System DCS judges that turbine steam turbine normally does work, for working well, when the current value I of the motor that long-range Distributed Control System DCS obtains is greater than I3, illustrate that turbine steam turbine does not do work, cause motor to do work to increase, motor current I rises, and long-range Distributed Control System DCS judges that car fault jumped by turbine steam turbine.
Car determination methods jumped by described one contactless no contact energy-saving turbine steam turbine, it is characterized in that: described long-range Distributed Control System DCS has access to sound light alarming circuit, when long-range Distributed Control System DCS judges turbine steam turbine fault, long-range Distributed Control System DCS controls sound light alarming circuit and carries out acoustooptic alarm, eject warning dialog box, prompting operator simultaneously.
In the present invention, what long-range Distributed Control System DCS and turbine Steam Turbine Field controller did not have a turbine steam turbine state inputs or outputs signal, the state signal of turbine steam turbine also need not enter long-range Distributed Control System DCS, the curent change of electric current before and after turbine steam turbine comes into operation of recycling motor body, achieves the judgement that car jumped by contactless contactless turbine steam turbine.
Accompanying drawing explanation
Fig. 1 is control principle drawing of the present invention.
Embodiment
As shown in Figure 1.During motor work, motor U, V, electric current will be had in W triple line to flow through, the electric current of a wherein phase is induced 0 ~ 5A ac small signal by D.C mutual-inductor 4, the size of this ac small signal is linearly corresponding with the size of current in motor triple line, 0 ~ 5A ac small signal changes the master meter signal of 4 ~ 20mA again into by current transducer 5, the size of this instrument signal is also linearly corresponding with the size of current in motor triple line, and teletransmission is to long-range Distributed Control System DCS data collecting card, therefore long-range Distributed Control System DCS is by the collection union to this instrument signal, obtain a motor average current value, electric current is larger, motor acting is more, power consumption is higher, otherwise electric current is less, motor acting is fewer, and power consumption is lower.
First actuating motor 2, motor 2 drives steam turbine 1 and blower fan 3 to rotate, and at this moment long-range Distributed Control System DCS obtains a motor current I1; Then main inlet throttle-stop valve 6 is opened, high temperature and high pressure steam enters turbine steam turbine 1 and does work, promote turbine steam turbine 1 to rotate, simultaneously driving electric machine 2 and the blower fan 3 long-range Distributed Control System DCS that operates gets back a motor current I2, because turbine steam turbine does work, driving electric machine rotates, and therefore I2 will be far smaller than I1.The judgement electric current I 3 during a turbine steam turbine fault can be set, make I2<I3<I1, and I3=I2+ (I1-I2)/2, when electric current I is when the motor is operated less than I3, just can think that turbine steam turbine normally does work, and works well; Current value I once motor is greater than I3, illustrate that turbine steam turbine does not do work, cause motor to do work to increase, motor current I rises, steam turbine fault can be judged as, at this moment the alarm system of long-range Distributed Control System DCS just can be utilized to carry out acoustooptic alarm, eject warning dialog box simultaneously, prompting operator.
For D600 blower fan, when turbine steam turbine runs well, the average current of motor is I2 is 35A, after car jumped by turbine steam turbine, the average current of motor is I1 is 60A, so breakdown judge electric current I 3=I2+ (I1-I2)/2)=35+ (60-35)/2=47.5A, but blower ventilation pipeline has certain resistance, and the fault current supposed is I3 is 52.5A.In order to overhaul the convenience of steam turbine, long-range Distributed Control System DCS doing a chain button, during overhaul of steam turbine, chain button can have been excised, more chain button being dropped into after having overhauled.Therefore utilize the curent change of the electric current of motor body before and after turbine steam turbine comes into operation, achieve the warning that car jumped by contactless contactless turbine steam turbine.
Claims (2)
1. car determination methods jumped by a contactless no contact energy-saving turbine steam turbine, it is characterized in that: adopt current transformer, current transducer, in a wherein phase line of described current transformer access motor triple line, current transducer signal output terminal is connected with current transducer input end by signaling line, and current transducer output terminal is connected with long-range Distributed Control System DCS by long-range shielded signal line;
First actuating motor, motor drives turbine steam turbine and blower fan to rotate, now current transformer detects the ac small signal in the motor phase line of place, described ac small signal is linearly corresponding with motor triple line size of current, ac small signal changes the master meter signal linear corresponding with motor three phase circuit size into by current transducer again, described master meter signal is sent to long-range Distributed Control System DCS by long-range shielded signal line, and long-range Distributed Control System DCS obtains a motor current I1 according to master meter signal; Then main inlet throttle-stop valve is opened, high temperature and high pressure steam enters the acting of turbine steam turbine, promotes turbine steam turbine and rotates, simultaneously driving electric machine and blower fan running, long-range Distributed Control System DCS to be got back a motor current I2 by current transformer, current transducer, and I2 will be far smaller than I1; According to motor current I1 and I2, set the judgement electric current I 3=I2+ (I1-I2)/2 during a turbine steam turbine fault;
When turbine steam turbine works, motor operation, when the motor current I that long-range Distributed Control System DCS obtains is less than I3, long-range Distributed Control System DCS judges that turbine steam turbine normally does work, for working well, when the current value I of the motor that long-range Distributed Control System DCS obtains is greater than I3, illustrate that turbine steam turbine does not do work, cause motor to do work to increase, motor current I rises, and long-range Distributed Control System DCS judges that car fault jumped by turbine steam turbine.
2. car determination methods jumped by one according to claim 1 contactless no contact energy-saving turbine steam turbine, it is characterized in that: described long-range Distributed Control System DCS has access to sound light alarming circuit, when long-range Distributed Control System DCS judges turbine steam turbine fault, long-range Distributed Control System DCS controls sound light alarming circuit and carries out acoustooptic alarm, eject warning dialog box, prompting operator simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310484809.1A CN103758584B (en) | 2013-10-16 | 2013-10-16 | Car determination methods jumped by a kind of contactless no contact energy-saving turbine steam turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310484809.1A CN103758584B (en) | 2013-10-16 | 2013-10-16 | Car determination methods jumped by a kind of contactless no contact energy-saving turbine steam turbine |
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| Publication Number | Publication Date |
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| CN103758584A CN103758584A (en) | 2014-04-30 |
| CN103758584B true CN103758584B (en) | 2015-11-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101123A (en) * | 1985-04-01 | 1987-01-24 | 西屋电器公司 | The system and method for diagnosis |
| CN101349737A (en) * | 2008-09-12 | 2009-01-21 | 南京因泰莱电器股份有限公司 | Method for detecting electric motor state and discriminating start-up course |
| CN102484445A (en) * | 2009-08-12 | 2012-05-30 | 瓦锡兰芬兰有限公司 | A Protection Arrangement Of An Electric Power System |
| CN102536346A (en) * | 2011-12-30 | 2012-07-04 | 内蒙古包钢钢联股份有限公司 | Application of constant power control to operation of TRT (blast furnace gas top pressure recovery turbine unit) |
| CN202586765U (en) * | 2012-05-24 | 2012-12-05 | 周登荣 | Inverting filtration control device of power generation system of comprehensive energy steam turbine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100639558B1 (en) * | 2004-10-20 | 2006-10-30 | 한국전력공사 | A method for anticipating and controlling overspeed of a steam turbine according to load alteration of generator |
-
2013
- 2013-10-16 CN CN201310484809.1A patent/CN103758584B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101123A (en) * | 1985-04-01 | 1987-01-24 | 西屋电器公司 | The system and method for diagnosis |
| CN101349737A (en) * | 2008-09-12 | 2009-01-21 | 南京因泰莱电器股份有限公司 | Method for detecting electric motor state and discriminating start-up course |
| CN102484445A (en) * | 2009-08-12 | 2012-05-30 | 瓦锡兰芬兰有限公司 | A Protection Arrangement Of An Electric Power System |
| CN102536346A (en) * | 2011-12-30 | 2012-07-04 | 内蒙古包钢钢联股份有限公司 | Application of constant power control to operation of TRT (blast furnace gas top pressure recovery turbine unit) |
| CN202586765U (en) * | 2012-05-24 | 2012-12-05 | 周登荣 | Inverting filtration control device of power generation system of comprehensive energy steam turbine |
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| CN103758584A (en) | 2014-04-30 |
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