CN102607007B - Control method and control device for primary fan system of coal-fired unit - Google Patents
Control method and control device for primary fan system of coal-fired unit Download PDFInfo
- Publication number
- CN102607007B CN102607007B CN 201210077667 CN201210077667A CN102607007B CN 102607007 B CN102607007 B CN 102607007B CN 201210077667 CN201210077667 CN 201210077667 CN 201210077667 A CN201210077667 A CN 201210077667A CN 102607007 B CN102607007 B CN 102607007B
- Authority
- CN
- China
- Prior art keywords
- coal
- primary air
- value
- air fan
- fan system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Disintegrating Or Milling (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention provides a control method for a primary fan system of a coal-fired unit, which includes the steps: gradually decreasing pressure of a primary fan main pipe from a current pressure value, and increasing openness of a baffle of an air inlet of each coal mill; when the pressure value of the primary fan main pipe is decreased every time, acquiring inlet air amount of each coal mill and outlet pressure of a sealing fan of the primary fan system; judging whether the inlet air amount of each coal mill is higher than an alarm value by a first preset value or not, and judging whether the outlet pressure of the sealing fan of the primary fan system is higher than an interlocking start threshold value by a second preset value or not; acquiring a pressure value of the primary fan main pipe at the time if the two judging results are affirmative; and providing air for the primary fan system according to the pressure value of the primary fan main pipe at the time. The invention further provides a control device for the primary fan system of the coal-fired unit, and the control device is capable of reducing energy consumption of the primary fan system and improving economic returns.
Description
Technical field
The present invention relates to the power equipment control field, particularly relate to control method and the device of coal-fired unit primary air fan system.
Background technology
Generation current is various informative, comprises wind-power electricity generation, hydroelectric generation, solar electrical energy generation, coal fired power generation; Wherein, coal fired power generation is still occupied an leading position; The primary air fan system is the coal fired power generation important component part, and its energy consumption is larger, and takies the equipment of the most of energy consumptions of primary air fan system, mainly is primary air fan; The generating energy consumption is large, is restricting the economic interests in power plant; But for how reducing the primary air fan system energy consumption, also there is not special technology to go to realize at present.
Summary of the invention
The object of the invention is to propose the control method of coal-fired unit primary air fan system, can reduce the energy consumption of primary air fan system, increases economic efficiency.
The control method of fire coal unit primary air fan system comprises step:
A wind main-piping pressure is reduced one by one from the current pressure value; Increase the aperture of each coal pulverizer air inlet baffle plate;
Wind main-piping pressure value of each reduction is then obtained each coal pulverizer inlet air quantity; And the outlet pressure that obtains the seal fan of primary air fan system;
Whether judge each coal pulverizer inlet air quantity than high the first predetermined value of alarming value, and whether the outlet pressure of seal fan of judging the primary air fan system is than high the second predetermined value of interlocked startup threshold values; If these 2 judged results all are yes, then obtain the force value of the female pipe of wind this moment;
Force value according to the female pipe of wind this moment provides wind to the primary air fan system.
The present invention progressively increases the baffle opening of each coal pulverizer air inlet simultaneously by progressively reducing the wind main-piping pressure one time; Behind wind main-piping pressure of each reduction, obtain each coal pulverizer inlet air quantity, and the outlet pressure of the seal fan of primary air fan system; Monitor each coal pulverizer inlet air quantity, make each coal pulverizer inlet air quantity maintain state than high the first predetermined value of alarming value; And the outlet pressure of monitoring seal fan, make the outlet pressure of seal fan maintain state than high the second predetermined value of seal fan interlocked startup threshold values; Can guarantee like this, the normal operation of coal-fired unit primary air fan system, and can reduce the energy consumption of primary air fan system so that the female pipe of an energy consumption wind in the highest flight operates in the state of lowest energy consumption, increase economic efficiency; After reducing the heat primary air main-piping pressure, the coal pulverizer inlet damper can be held greatly, to guarantee the normal operation of primary air fan system, can greatly reduce like this restriction loss and the component wear speed of baffle plate; Simultaneously, also make the operating point of fan operation more away from surge region, improved reliability and the security of fan operation.
Therein among embodiment, before the described step that wind main-piping pressure is reduced one by one from the current pressure value, comprise step: the measurement mechanism to the coal pulverizer inlet air quantity carries out hot demarcation, obtains the new discharge coefficient of this measurement mechanism; Utilize this new discharge coefficient to adjust the certainty of measurement of measurement mechanism.Utilize high-precision measurement mechanism to go to implement the present invention program, can improve the control accuracy of coal-fired unit primary air fan system, further reduce the primary air fan system energy consumption.
Among embodiment, repeatedly hot demarcation is carried out in the measurement mechanism of coal pulverizer inlet air quantity therein, obtain a plurality of new discharge coefficients; Ask for the mean value of a plurality of new discharge coefficients; Utilize this mean value to adjust the precision of measurement mechanism.Measurement mechanism is carried out repeatedly hot demarcation, obtain a plurality of new discharge coefficients, then utilize the mean value of a plurality of new discharge coefficients to adjust the precision of measurement mechanism, can improve the control accuracy of coal-fired unit primary air fan system, further reduce the primary air fan system energy consumption.
Therein among embodiment, judge that described whether each coal pulverizer inlet air quantity is than high the first predetermined value of alarming value, and judge that the outlet pressure of seal fan of primary air fan system is whether in the step than high the second predetermined value of interlocked startup threshold values, if the result of these 2 judgements is not yes entirely, then further increase the aperture of each coal pulverizer air inlet baffle plate.Can prevent like this seal fan interlocked startup of primary air fan system, further improve reliability and the security of primary air fan system.
Therein in enforcement, if when a wind main-piping pressure dropped to scheduled pressure value from the current pressure value, then no longer reduce the wind main-piping pressure one time, to guarantee the normal operation of primary air fan system.In general, this scheduled pressure value can not be lower than 7.5kPa.
The object of the invention also is to propose the control device of coal-fired unit primary air fan system, can reduce the energy consumption of primary air fan system, increases economic efficiency.
The control device of fire coal unit primary air fan system comprises:
The first control module is used for a wind main-piping pressure is reduced one by one from the current pressure value;
Coal pulverizer air port baffle controling unit is for the aperture that increases each coal pulverizer air inlet baffle plate;
The first acquiring unit is used for obtaining each coal pulverizer inlet air quantity after wind main-piping pressure value of each reduction; And the outlet pressure that obtains the seal fan of primary air fan system;
Second acquisition unit is used for obtaining the at this moment force value of a female pipe of wind;
Judging unit is used for whether judging each coal pulverizer inlet air quantity than high the first predetermined value of alarming value, and whether the outlet pressure of seal fan of judging the primary air fan system is than high the second predetermined value of interlocked startup threshold values; If these 2 judged results all are yes, then notify second acquisition unit to carry out respective operations;
Described the second control module, being used for the control primary air fan provides wind to coal-fired unit primary air fan system according to the force value of the female pipe of wind this moment.
The present invention progressively increases the baffle opening of each coal pulverizer air inlet simultaneously by progressively reducing the wind main-piping pressure one time; Behind wind main-piping pressure of each reduction, obtain each coal pulverizer inlet air quantity, and the outlet pressure of the seal fan of primary air fan system; Monitor each coal pulverizer inlet air quantity, make each coal pulverizer inlet air quantity maintain state than high the first predetermined value of alarming value; And the outlet pressure of monitoring seal fan, make the outlet pressure of seal fan maintain state than high the second predetermined value of seal fan interlocked startup threshold values; Can guarantee like this, the normal operation of coal-fired unit primary air fan system, and can reduce the energy consumption of primary air fan system so that the female pipe of an energy consumption wind in the highest flight operates in the state of lowest energy consumption, increase economic efficiency; After reducing the heat primary air main-piping pressure, the coal pulverizer inlet damper can be held greatly, to guarantee the normal operation of primary air fan system, can greatly reduce like this restriction loss and the component wear speed of baffle plate; Simultaneously, also make the operating point of fan operation more away from surge region, improved reliability and the security of fan operation.
Therein among embodiment, the control device of described coal-fired unit primary air fan system also comprises pre-configured unit and adjustment unit; Before described the first control module reduces a wind main-piping pressure one by one from the current pressure value; Described pre-configured unit carries out hot demarcation to the measurement mechanism of coal pulverizer inlet air quantity, obtains the new discharge coefficient of this measurement mechanism; Described adjustment unit utilizes this new discharge coefficient to adjust the certainty of measurement of measurement mechanism.By improving the precision of measurement mechanism, can improve the control accuracy of coal-fired unit primary air fan system, further reduce the primary air fan system energy consumption.
Among embodiment, described pre-configured unit repeatedly carries out hot demarcation to the measurement mechanism of coal pulverizer inlet air quantity, obtains a plurality of new discharge coefficients therein; And ask for the mean value of a plurality of new discharge coefficients; Described adjustment unit utilizes this mean value to adjust the precision of measurement mechanism.Measurement mechanism is carried out repeatedly hot demarcation, obtain a plurality of new discharge coefficients, then utilize the mean value of a plurality of new discharge coefficients to adjust the precision of measurement mechanism, can improve the control accuracy of coal-fired unit primary air fan system, further reduce the primary air fan system energy consumption.
Among embodiment, if the judged result of described judging unit is not yes entirely, then notify described the first control module further to increase the aperture of each coal pulverizer air inlet baffle plate therein.Can prevent like this seal fan interlocked startup of primary air fan system, further improve reliability and the security of primary air fan system.
Therein in enforcement, if when the first control module drops to scheduled pressure value with a wind main-piping pressure from the current pressure value, then no longer reduce the wind main-piping pressure one time, to guarantee the normal operation of primary air fan system.
Description of drawings
Fig. 1 is an embodiment flow chart of the inventive method;
Fig. 2 is a structural representation of apparatus of the present invention;
Fig. 3 is another structural representation of apparatus of the present invention.
The specific embodiment
For ease of understanding the present invention, set forth below in conjunction with accompanying drawing.
The present invention proposes the control method of coal-fired unit primary air fan system, please refer to Fig. 1, comprises step:
S101, progressively reduce a wind main-piping pressure from the current pressure value, increase simultaneously the aperture of each coal pulverizer air inlet baffle plate;
A wind main-piping pressure is reduced one by one from the current pressure value; Increase simultaneously the aperture of each coal pulverizer air inlet baffle plate.
S102, reduce wind main-piping pressure value one time at every turn, then obtain each coal pulverizer inlet air quantity; And the outlet pressure that obtains the seal fan of primary air fan system;
For example, can reduce 3% of currency at every turn.
S103, whether judge each coal pulverizer inlet air quantity than high the first predetermined value of alarming value, and whether the outlet pressure of seal fan of judging the primary air fan system is than high the second predetermined value of interlocked startup threshold values;
For example, this first predetermined value can be 1.2 times of alarming value; This second predetermined value can be 1.2 times of interlocked startup threshold values.
If these 2 judged results of S104 all are yes, then obtain the force value of the female pipe of wind this moment;
S105, provide wind to the primary air fan system according to the force value of the female pipe of wind this moment.
The present invention progressively increases the baffle opening of each coal pulverizer air inlet simultaneously by progressively reducing the wind main-piping pressure one time; Behind wind main-piping pressure of each reduction, obtain each coal pulverizer inlet air quantity, and the outlet pressure of the seal fan of primary air fan system; Monitor each coal pulverizer inlet air quantity, make each coal pulverizer inlet air quantity maintain state than high the first predetermined value of alarming value; And the outlet pressure of monitoring seal fan, make the outlet pressure of seal fan maintain state than high the second predetermined value of seal fan interlocked startup threshold values; Can guarantee like this, the normal operation of coal-fired unit primary air fan system, and can reduce the energy consumption of primary air fan system so that the female pipe of an energy consumption wind in the highest flight operates in the state of lowest energy consumption, increase economic efficiency; After reducing the heat primary air main-piping pressure, the coal pulverizer inlet damper can be held greatly, to guarantee the normal operation of primary air fan system, can greatly reduce like this restriction loss and the component wear speed of baffle plate; Simultaneously, also make the operating point of fan operation more away from surge region, improved reliability and the security of fan operation.
Among embodiment, before the step of S101, comprise step: the measurement mechanism to the coal pulverizer inlet air quantity carries out hot demarcation therein; Obtain the new discharge coefficient of this measurement mechanism; Utilize this new discharge coefficient to adjust the certainty of measurement of measurement mechanism.Wherein carry out hot demarcation for coal pulverizer inlet dry wind measuring device, hot demarcation is to carry out under the about 260 ℃ state of Temperature of Working; Each measurement mechanism has a discharge coefficient, and staking-out work is exactly to utilize the higher instrument of precision that the discharge coefficient of this flow measurement device is demarcated; The new discharge coefficient that calibration process draws is revised the coefficient of flow measurement device to this new coefficient, can improve the precision of measurement mechanism.Utilize high-precision measurement mechanism to go to implement the present invention program, can improve the control accuracy of coal-fired unit primary air fan system, further reduce the primary air fan system energy consumption.Main-piping pressure whenever falls 1%, and it is about 1% that the primary air fan system energy consumption can reduce, the every reduction by 1% of 600MW grade unit main-piping pressure, and the primary air fan system energy consumption can reduce 8kW.
Among embodiment, before the step of S101, repeatedly hot demarcation is carried out in the measurement mechanism of coal pulverizer inlet air quantity therein, obtain a plurality of new discharge coefficients; Ask for the mean value of a plurality of new discharge coefficients; Utilize this mean value to adjust the precision of measurement mechanism.Measurement mechanism is carried out repeatedly hot demarcation, obtain a plurality of new discharge coefficients, then utilize the mean value of a plurality of new discharge coefficients to adjust the precision of measurement mechanism, can improve the control accuracy of coal-fired unit primary air fan system, further reduce the primary air fan system energy consumption.
Among embodiment, in the step of above-mentioned S103, if the result of these 2 judgements is not yes entirely, then further increase the aperture of each coal pulverizer air inlet baffle plate therein.Can prevent like this seal fan interlocked startup of primary air fan system, further improve reliability and the security of primary air fan system.
The heat primary air main-piping pressure that designing unit or equipment producer can provide generally all has the decline space of 2-3kPa.Therein in enforcement, if through step S101, when a wind main-piping pressure is dropped to scheduled pressure value from the current pressure value, then no longer reduce the wind main-piping pressure one time, to guarantee the normal operation of primary air fan system.
The present invention also proposes the control device of coal-fired unit primary air fan system, please refer to Fig. 2, comprising:
The first control module 201 is used for a wind main-piping pressure is reduced one by one from the current pressure value;
Coal pulverizer air port baffle controling unit 202 is for the aperture that increases each coal pulverizer air inlet baffle plate;
The first acquiring unit 203 is used for obtaining each coal pulverizer inlet air quantity after wind main-piping pressure value of each reduction; And the outlet pressure that obtains the seal fan of primary air fan system;
The second control module 206, being used for the control primary air fan provides wind to coal-fired unit primary air fan system according to the force value of the female pipe of wind this moment.
The present invention progressively increases the baffle opening of each coal pulverizer air inlet simultaneously by progressively reducing the wind main-piping pressure one time; Behind wind main-piping pressure of each reduction, obtain each coal pulverizer inlet air quantity, and the outlet pressure of the seal fan of primary air fan system; Monitor each coal pulverizer inlet air quantity, make each coal pulverizer inlet air quantity maintain state than high the first predetermined value of alarming value; And the outlet pressure of monitoring seal fan, make the outlet pressure of seal fan maintain state than high the second predetermined value of seal fan interlocked startup threshold values; Can guarantee like this, the normal operation of coal-fired unit primary air fan system, and can reduce the energy consumption of primary air fan system so that the female pipe of an energy consumption wind in the highest flight operates in the state of lowest energy consumption, increase economic efficiency; After reducing the heat primary air main-piping pressure, the coal pulverizer inlet damper can be held greatly, to guarantee the normal operation of primary air fan system, can greatly reduce like this restriction loss and the component wear speed of baffle plate; Simultaneously, also make the operating point of fan operation more away from surge region, improved reliability and the security of fan operation.
Therein among embodiment, the control device of coal-fired unit primary air fan system also comprises pre-configured unit 207 and adjustment unit 208; Before the first control module 201 reduces a wind main-piping pressure one by one from the current pressure value; The measurement mechanism of the 207 pairs of coal pulverizer inlet air quantity in pre-configured unit carries out hot demarcation, obtains the new discharge coefficient of this measurement mechanism; Adjustment unit 208 utilizes this new discharge coefficient to adjust the certainty of measurement of measurement mechanism.By improving the precision of measurement mechanism, can improve the control accuracy of coal-fired unit primary air fan system, further reduce the primary air fan system energy consumption.
Among embodiment, more than 207 measurement mechanism to the coal pulverizer inlet air quantity in pre-configured unit carries out hot demarcation, obtains a plurality of new discharge coefficients therein; And ask for the mean value of a plurality of new discharge coefficients; Adjustment unit 208 utilizes this mean value to adjust the precision of measurement mechanism.Measurement mechanism is carried out repeatedly hot demarcation, obtain a plurality of new discharge coefficients, then utilize the mean value of a plurality of new discharge coefficients to adjust the precision of measurement mechanism, can improve the control accuracy of coal-fired unit primary air fan system, further reduce the primary air fan system energy consumption.
Among embodiment, if the judged result of judging unit 205 is not yes entirely, then notify the first control module 201 further to increase the apertures of each coal pulverizer air inlet baffle plates therein.Can prevent like this seal fan interlocked startup of primary air fan system, further improve reliability and the security of primary air fan system.
Therein in enforcement, if when the first control module 201 drops to scheduled pressure value with a wind main-piping pressure from the current pressure value, then no longer reduce the wind main-piping pressure one time, to guarantee the normal operation of primary air fan system.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the control method of coal-fired unit primary air fan system is characterized in that, comprises step:
A wind main-piping pressure is reduced one by one from the current pressure value; Increase simultaneously the aperture of each coal pulverizer air inlet baffle plate;
Wind main-piping pressure value of each reduction is then obtained each coal pulverizer inlet air quantity; And the outlet pressure that obtains the seal fan of primary air fan system;
Whether judge each coal pulverizer inlet air quantity than high the first predetermined value of alarming value, and whether the outlet pressure of seal fan of judging the primary air fan system is than high the second predetermined value of interlocked startup threshold values; If these 2 judged results all are yes, then obtain the force value of the female pipe of wind this moment;
Force value according to the female pipe of wind this moment provides wind to the primary air fan system.
2. the control method of coal-fired unit primary air fan according to claim 1 system is characterized in that,
Before the described step that wind main-piping pressure is reduced one by one from the current pressure value, comprise step:
Measurement mechanism to the coal pulverizer inlet air quantity carries out hot demarcation, obtains the new discharge coefficient of this measurement mechanism; Utilize this new discharge coefficient to adjust the certainty of measurement of measurement mechanism.
3. the control method of coal-fired unit primary air fan according to claim 2 system is characterized in that,
Repeatedly hot demarcation is carried out in the measurement mechanism of coal pulverizer inlet air quantity, obtain a plurality of new discharge coefficients; Ask for the mean value of a plurality of new discharge coefficients; Utilize this mean value to adjust the precision of measurement mechanism.
4. the control method of coal-fired unit primary air fan according to claim 1 system is characterized in that,
Judge that described whether each coal pulverizer inlet air quantity is than high the first predetermined value of alarming value, and judge that the outlet pressure of seal fan of primary air fan system is whether in the step than high the second predetermined value of interlocked startup threshold values, if the result of these 2 judgements is not yes entirely, then further increase the aperture of each coal pulverizer air inlet baffle plate.
5. according to claim 1 to the control method of 4 each described coal-fired unit primary air fan systems, it is characterized in that,
If when a wind main-piping pressure is dropped to scheduled pressure value from the current pressure value, then no longer reduce the wind main-piping pressure one time, to guarantee the normal operation of primary air fan system.
6. the control device of coal-fired unit primary air fan system is characterized in that, comprising:
The first control module is used for a wind main-piping pressure is reduced one by one from the current pressure value;
Coal pulverizer air port baffle controling unit is for the aperture that increases each coal pulverizer air inlet baffle plate;
The first acquiring unit is used for obtaining each coal pulverizer inlet air quantity after wind main-piping pressure value of each reduction; And the outlet pressure that obtains the seal fan of primary air fan system;
Second acquisition unit is used for obtaining the at this moment force value of a female pipe of wind;
Judging unit is used for whether judging each coal pulverizer inlet air quantity than high the first predetermined value of alarming value, and whether the outlet pressure of seal fan of judging the primary air fan system is than high the second predetermined value of interlocked startup threshold values; If these 2 judged results all are yes, then notify second acquisition unit to carry out respective operations;
Described the second control module, being used for the control primary air fan provides wind to coal-fired unit primary air fan system according to the force value of the female pipe of wind this moment.
7. the control device of coal-fired unit primary air fan according to claim 6 system is characterized in that,
The control device of described coal-fired unit primary air fan system also comprises pre-configured unit and adjustment unit; Before described the first control module reduces a wind main-piping pressure one by one from the current pressure value;
Described pre-configured unit carries out hot demarcation to the measurement mechanism of coal pulverizer inlet air quantity, obtains the new discharge coefficient of this measurement mechanism;
Described adjustment unit utilizes this new discharge coefficient to adjust the certainty of measurement of measurement mechanism.
8. the control device of coal-fired unit primary air fan according to claim 7 system is characterized in that,
Described pre-configured unit repeatedly carries out hot demarcation to the measurement mechanism of coal pulverizer inlet air quantity, obtains a plurality of new discharge coefficients; And ask for the mean value of a plurality of new discharge coefficients;
Described adjustment unit utilizes this mean value to adjust the precision of measurement mechanism.
9. the control device of coal-fired unit primary air fan according to claim 6 system is characterized in that,
If the judged result of described judging unit is not yes entirely, then notify described the first control module further to increase the aperture of each coal pulverizer air inlet baffle plate.
10. according to claim 6 to the control device of 9 each described coal-fired unit primary air fan systems, it is characterized in that,
When described the first control module is reduced to scheduled pressure value with the pressure of the female pipe of wind from the current pressure value, then no longer reduce the pressure of a female pipe of wind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210077667 CN102607007B (en) | 2012-03-21 | 2012-03-21 | Control method and control device for primary fan system of coal-fired unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210077667 CN102607007B (en) | 2012-03-21 | 2012-03-21 | Control method and control device for primary fan system of coal-fired unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102607007A CN102607007A (en) | 2012-07-25 |
| CN102607007B true CN102607007B (en) | 2013-10-30 |
Family
ID=46524635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210077667 Active CN102607007B (en) | 2012-03-21 | 2012-03-21 | Control method and control device for primary fan system of coal-fired unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102607007B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836639B (en) * | 2013-12-31 | 2016-02-24 | 广东电网公司电力科学研究院 | A kind of primary air fan control method based on First air burner hearth differential pressure and device |
| CN105571653B (en) * | 2015-12-17 | 2019-02-15 | 广东电网有限责任公司电力科学研究院 | Coal pulverizer air measuring method and system |
| CN107062303B (en) * | 2016-12-30 | 2019-04-19 | 上海外高桥第二发电有限责任公司 | A kind of 900MW station boiler heat primary air pressure optimizes and revises method |
| CN107255268B (en) * | 2017-05-31 | 2019-04-19 | 上海明华电力技术工程有限公司 | A kind of primary air fan RB control method based on primary air fan system state monitoring |
| CN113578508B (en) * | 2021-07-14 | 2022-11-01 | 河北西柏坡发电有限责任公司 | Logic optimization method, device and system for protecting air volume at inlet of coal mill |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6589306B2 (en) * | 2001-07-18 | 2003-07-08 | Ronning Engineering Co., Inc. | Centrifugal separator apparatus for removing particulate material from an air stream |
| CN101604148A (en) * | 2009-07-06 | 2009-12-16 | 广东电网公司电力科学研究院 | A kind of thermal power generation unit control method for coordinating and coordinated control system |
| CN101650021A (en) * | 2009-08-25 | 2010-02-17 | 广州粤能电力科技开发有限公司 | Primary air fan tripping set run back control method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0410584A (en) * | 1990-04-27 | 1992-01-14 | Victor Co Of Japan Ltd | Hall element and manufacture thereof |
-
2012
- 2012-03-21 CN CN 201210077667 patent/CN102607007B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6589306B2 (en) * | 2001-07-18 | 2003-07-08 | Ronning Engineering Co., Inc. | Centrifugal separator apparatus for removing particulate material from an air stream |
| CN101604148A (en) * | 2009-07-06 | 2009-12-16 | 广东电网公司电力科学研究院 | A kind of thermal power generation unit control method for coordinating and coordinated control system |
| CN101650021A (en) * | 2009-08-25 | 2010-02-17 | 广州粤能电力科技开发有限公司 | Primary air fan tripping set run back control method and system |
Non-Patent Citations (2)
| Title |
|---|
| 于洋.降低锅炉一次风系统电耗的优化调节.《华北电力技术》.2009, * |
| 俞震华.百万千瓦机组一次风机变频改造.《DCS控制技术》.2012, * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102607007A (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102607007B (en) | Control method and control device for primary fan system of coal-fired unit | |
| EP3289656B1 (en) | Failsafe power profile for a distributed generation management system | |
| KR101973881B1 (en) | Method, device and system for compensating the output power of a wind turbine generator set | |
| CN104300583B (en) | A kind of meter and the microgrid control method for frequency of equipment governing response characteristic | |
| Liu et al. | Recent advancement on technical requirements for grid integration of wind power | |
| CN102493915B (en) | Fan utilizing method and fan utilizing system for wind power station | |
| WO2011022390A3 (en) | Energy storage systems and associated methods | |
| WO2011072689A3 (en) | Wind power plant controller for avoiding common cause shutdown | |
| Altin et al. | Methodology for assessment of inertial response from wind power plants | |
| CN107905858B (en) | Final stage safety flow monitoring and controlling system and method | |
| CN104300587A (en) | Power grid frequency modulation control system and method based on wind power generation and thermal power generation | |
| JP2013219941A (en) | Control method and control device of power generation system using renewable energy | |
| CN112240267B (en) | Fan monitoring method based on wind speed correlation and wind power curve | |
| CN102916449A (en) | Active and reactive coordination control method for cluster wind power plant based on power balance theory | |
| CN106340967B (en) | Power station low voltage generator intelligent operation device and intelligent operation method | |
| CN104348162A (en) | Voltage control method of 330kV wind farm collection substation | |
| CN104242270B (en) | Passive anti-island protection maloperation preventing method | |
| CN105334846A (en) | Water power station diversion system dynamic characteristic parameter prototype test method | |
| CN103186818A (en) | Optimal matching method for wind turbine generator systems and wind resource conditions | |
| KR20170018647A (en) | A frequency control system and method for power grid using an energy storage device | |
| KR20170025784A (en) | System and method for controlling charging or discharging of energy storage system | |
| CN205377320U (en) | Many group batteries protection device | |
| CN105978034B (en) | distributed power grid distribution system | |
| Li | Wind turbine power curve drawing based on method of grid | |
| CN102790402A (en) | Fan selecting method for grid connection point voltage of wind power farm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171124 Address after: 510655, No. fifth, No. 146-150, Whampoa Avenue, Tianhe District, Guangdong, Guangzhou Patentee after: GUANGDONG DIANKEYUAN ENERGY TECHNOLOGY Co.,Ltd. Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: Room 501-503, annex building, Huaye building, No.1-3 Chuimao new street, Xihua Road, Yuexiu District, Guangzhou City, Guangdong Province 510000 Patentee after: China Southern Power Grid Power Technology Co.,Ltd. Address before: 510655 5th floor, no.146-150, Huangpu Avenue Middle Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG DIANKEYUAN ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |