CN112185038A - Safe recovery power generation system - Google Patents
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- 238000010248 power generation Methods 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- 239000003245 coal Substances 0.000 claims abstract description 52
- 238000012545 processing Methods 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000002002 slurry Substances 0.000 claims abstract description 44
- 238000012544 monitoring process Methods 0.000 claims abstract description 32
- 238000013500 data storage Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000007405 data analysis Methods 0.000 claims abstract description 20
- 238000005381 potential energy Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 53
- 230000002159 abnormal effect Effects 0.000 claims description 37
- 238000004804 winding Methods 0.000 claims description 35
- 238000004364 calculation method Methods 0.000 claims description 16
- 238000013021 overheating Methods 0.000 claims description 13
- 238000004458 analytical method Methods 0.000 claims description 10
- 239000003250 coal slurry Substances 0.000 claims description 10
- 238000002372 labelling Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- G—PHYSICS
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- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
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- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
Abstract
The invention discloses a safety recovery power generation system, which comprises a data acquisition module, a data monitoring module, a data analysis module, a data processing module, a data storage module, an alarm module and a display module, wherein the data analysis module is arranged to calculate the instantaneous impact force and the power potential energy of coal water slurry so as to analyze the conversion power of a generator and the instantaneous impact torque of fan blades, so that a worker can analyze the data of the working condition of the power generation system in the actual working process and adjust the working state of the system, thereby improving the working efficiency of the system, increasing the scientific and numerical clothes-reporting strength, calculating the loss rate of a circuit of the generator and monitoring the temperature and moving targets in an equipment area by arranging the data processing module and the data monitoring module, and further enabling the system to independently find possible equipment and personnel safety problems, the safety of the system in the use process is improved.
Description
Technical Field
The invention relates to a recovery power generation system, in particular to a safe recovery power generation system.
Background
Coal water slurry is a new type, high efficiency, clean coal-based fuel, a new member of fuel families, and is a mixture made of 65% -70% of coal with different particle size distribution, 29-34% of water and about 1% of chemical additives. After a plurality of rigorous procedures, impurities such as incombustible components in coal are screened out, and only the carbon essence is reserved to become the essence of the coal water slurry. It has petroleum-like fluidity and a calorific value equivalent to half of that of oil, and is called a liquid coal product. The water-coal-slurry technology comprises key technologies of water-coal-slurry preparation, storage and transportation, combustion, additives and the like, is a system technology relating to multiple subjects, has the characteristics of high combustion efficiency, low pollutant emission and the like, can be used for oil replacement, gas replacement and coal replacement combustion of power station boilers, industrial boilers and industrial kilns, and can be used for heating and domestic hot water of various buildings such as hotels, houses, hotels, office buildings and the like, and is an important component of the current clean coal technology.
However, the coal water slurry is basically combusted aiming at the use of the coal water slurry, so that heat energy generated by combustion is utilized, a large amount of potential energy is still stored in the coal water slurry in the pipeline transportation process of the coal water slurry, and the coal water slurry potential energy is not utilized in the prior art, so that the energy is wasted. Therefore, a safe recovery power generation system aiming at water-coal potential energy is provided.
Disclosure of Invention
The invention aims to provide a safe recovery power generation system, which is characterized in that a data analysis module is arranged to calculate the instantaneous impact force and the power potential energy of coal water slurry, so that the converted power of a generator and the instantaneous impact torque of fan blades are analyzed, and workers can analyze the working condition of the power generation system and adjust the working details based on the analyzed data in the actual working process, so that the working efficiency of the system is improved, and the scientificity and the data service strength of the working adjustment of the system are increased; through setting up data processing module and data monitoring module, carry out accurate calculation to the rate of loss of generator circuit and monitor temperature and moving target in the equipment region to make the system can independently in time discover equipment safety problem and personnel's safety problem that probably appear, reduce staff's intensity of labour, improve the security of system in the use.
The technical problem solved by the invention is as follows:
(1) how to calculate the instantaneous impact force and the power potential energy of the coal water slurry by arranging a data analysis module so as to analyze the converted power of the generator and the instantaneous impact torque of fan blades, and solve the problems that the working condition of a power generation system is difficult to analyze in the actual working process and the working details are adjusted based on the analyzed data;
(2) how to accurately calculate the loss rate of the generator circuit and monitor the temperature and the moving target in the equipment area by arranging the data processing module and the data monitoring module solves the equipment safety problem and the personnel safety problem which possibly occur in the actual work.
The purpose of the invention can be realized by the following technical scheme: a safety recovery power generation system comprises a data acquisition module, a data monitoring module, a data analysis module, a data processing module, a data storage module, an alarm module and a display module;
the data acquisition module is used for acquiring fluid data of the coal water slurry in real time and transmitting the fluid data to the data analysis module, the fluid data comprises time point data, coal water slurry flow rate data, fluid impact angle data and coal water slurry density data, the time point data represents the acquisition time of the fluid data, the coal water slurry flow rate data represents the volume of the coal water slurry fluid passing through the outlet section of the pipeline in unit time in the conveying pipeline, and the data acquisition module is also used for acquiring instantaneous current data and instantaneous voltage data of a generator winding and transmitting the instantaneous current data and the instantaneous voltage data to the data processing module;
the data analysis module performs fluid impact analysis on fluid data of the coal water slurry, transmits the obtained power normal signal and power abnormal signal to the data processing module, transmits the obtained torque normal signal and torque abnormal signal to the alarm module, and transmits the obtained error log data to the data storage module for storage;
the data storage module stores generator specification data, the generator specification data comprise generator winding rated current, generator winding rated voltage and generator spindle maximum bearing torque, the data storage module also stores spindle torque data, the spindle torque data comprise maximum bearing torque and torque length, and the torque length represents the distance from the center of a fan blade to the axis of a spindle;
the data processing module receives the power normal signal, the power abnormal signal, the torque normal signal and the torque abnormal signal and then processes the signals, the obtained error report data is transmitted to the display module, and the obtained normal loss signal, the obtained excessive loss signal and the obtained loss rate of the generator are transmitted to the alarm module;
the data monitoring module is used for acquiring temperature data and image data in a generator equipment area, monitoring and analyzing the temperature data and the image data, and transmitting an obtained temperature safety signal, a temperature danger signal, a moving target signal and a fixed target signal to the alarm module;
the alarm module is used for identifying a torque normal signal, a torque abnormal signal, a normal loss signal, an excessive loss signal, a temperature safety signal, a temperature danger signal, a moving target signal and a fixed target signal, judging that the system operates normally when the torque normal signal, the normal loss signal, the temperature safety signal and the fixed target signal are identified at the same time, not performing any processing, generating an overhaul signal when the excessive loss signal or the torque abnormal signal is identified, generating a system overheat signal when the temperature danger signal is identified, turning on an alarm lamp, generating an intrusion signal when the moving target signal is identified, turning on a buzzer, automatically turning off the buzzer within thirty seconds after the buzzer is turned on, and transmitting the overhaul signal, the system overheat signal and the intrusion signal to the display module by the alarm module;
the display module identifies the overhaul signal, the system overheating signal and the intrusion signal, generates a caption of 'please overhaul the generator' when identifying the overhaul signal, generates a caption of 'the system overheating and please take cooling measures' when identifying the system overheating signal, generates a caption of 'intrusion with target and please stop for confirmation' when identifying the intrusion signal, and puts the generated caption on a display screen for continuous flashing.
The invention has further technical improvements that: the fluid impact analysis specifically comprises the following steps:
c1: marking the data of the time points as SJ i, wherein i is 1,2,3 … … n, marking the flow rate data of the coal water slurry obtained at the corresponding time points as Vi, marking the fluid impact angle obtained at the corresponding time points as alphai, and marking the density data of the coal water slurry obtained at the corresponding time points as rho i;
c2: extracting generator specification data and main shaft torque data from a data storage module, calibrating generator fan blade thickness data as B, marking generator winding rated current as I, marking generator winding rated voltage as U, marking maximum bearing torque as T and marking torque length as L;
c3: according to the calculation formula: the flow mass data is the coal water slurry flow velocity data and the coal water slurry density data, the flow mass data is obtained and marked as Mi, the flow mass data is substituted into a calculation formula, the power potential energy is the flow mass data and the square of the coal water slurry flow velocity data/2, the obtained power potential energy is marked as Eki, and the fluid impact angle and the power potential energy are substituted into the calculation formula:
wherein Ei represents the electric energy converted by the potential energy in unit time, namely the conversion power, lambda represents the energy loss coefficient, the value is 0.46932, the fluid density influence factor and the fluid velocity influence factor are represented, and e represents a natural constant in mathematics;
c4: according to the calculation formula: obtaining the rated power of the generator winding, marking the rated power of the generator winding as P, comparing the converted power with the rated power of the generator winding, generating a normal power signal if the rated power of the generator winding does not exceed the converted power, generating an abnormal power signal if the rated power of the generator winding is greater than the converted power, and meanwhile, according to a calculation formula: calculating the power difference value which is the converted power-the rated power of the generator winding to obtain the power difference value, and integrating the corresponding time point data and the power difference value into error log data;
c5: according to the momentum theorem, the instantaneous impact force of the fluid in unit time, namely flow mass data and coal water slurry flow speed data, is obtained, and the instantaneous impact force of the fluid is marked as F i, so that the method comprises the following steps: instantaneous impact torque, instant impact force torque length, is obtained and labeled T i;
c6: and comparing the instantaneous impact torque with the maximum bearing torque, if the instantaneous impact torque does not exceed the maximum bearing torque, generating a torque normal signal, and if the instantaneous impact torque is greater than the maximum bearing torque, generating a torque abnormal signal.
The invention has further technical improvements that: the data processing module comprises the following specific processing steps:
the method comprises the following steps: when the data processing module identifies the normal power signal, no processing is carried out;
step two: when the data processing module identifies the power abnormal signal, extracting error log data from the data storage module, recording the number of the error log data and marking the number as d, dividing twenty-four hours a day into six time periods, and counting time point data in the error log data according to the divided time periods to generate error frequency data in each time period;
step three: presetting a limited error frequency in a data processing module, comparing error frequency data with the limited error frequency, not performing any processing when the error frequency data is less than the limited error frequency, adding the power difference in the period when the error frequency data is more than or equal to the limited error frequency, dividing the power difference by the error frequency data, calculating the average power difference in the period, and integrating the average power difference with the error frequency data in the period to generate error report data;
step four: summing the power difference values in all error log data e, dividing the sum by the number of log strips to obtain the average power difference value in the whole time period, marking the average power difference value as delta P, and substituting the number of log strips d and the average power difference value delta P in the whole time period into a formula:
where SH represents the generator loss rate, SJm represents the first point-in-time in the error log data, SJn represents the last point-in-time in the error log data, a represents the power overload impact factor, b represents the overload time impact bias factor, c represents the overload number impact bias factor, and e represents a natural constant in mathematics;
step five: the method comprises the steps of presetting a generator normal loss limit value in a data processing module, comparing a generator loss rate with the generator normal loss limit value, generating a normal loss signal if the generator loss rate is smaller than the generator normal loss limit value, and generating an excessive loss signal if the generator loss rate is larger than or equal to the generator normal loss limit value.
The invention has further technical improvements that: the specific monitoring and analyzing steps of the data monitoring module are as follows:
k1: labeling acquired temperature data as Wdi, wherein i is 1,2,3 … … n, and labeling acquired image data as Yxj, wherein i is 1,2,3 … … n;
k2: a safe working temperature is preset in the data monitoring module, when the temperature data is less than or equal to the safe working temperature, a temperature safe signal is generated, and when the temperature data exceeds the safe working temperature, a temperature dangerous signal is generated;
k3: establishing a virtual space rectangular coordinate system in an equipment monitoring area, selecting any point in image data as an image characteristic point, generating characteristic point coordinates, comparing the characteristic point coordinates corresponding to different shooting time points, judging that the position of the image is changed when the characteristic point coordinates are changed, wherein the image is a moving image, generating a moving target signal, judging that the position of the image is not changed when the characteristic point coordinates are not changed, and the image is a fixed image, generating a fixed target signal.
The invention has further technical improvements that: the data monitoring module is internally provided with a temperature sensor and a camera, the temperature sensor is used for acquiring temperature data, and the camera is used for acquiring image data.
The invention has further technical improvements that: the display module is an intelligent display device and is in communication connection with the data storage module.
Compared with the prior art, the invention has the beneficial effects that:
1. when the water-coal-slurry impact analysis device is used, the data acquisition module acquires fluid data of the water-coal-slurry in real time and transmits the fluid data to the data analysis module, the data acquisition module also acquires instantaneous current data and instantaneous voltage data of a generator winding and transmits the instantaneous current data and the instantaneous voltage data to the data processing module, the data analysis module performs fluid impact analysis on the fluid data of the water-coal-slurry, transmits the obtained power normal signal and the obtained power abnormal signal to the data processing module, transmits the obtained torque normal signal and the obtained torque abnormal signal to the alarm module, transmits the obtained error log data to the data storage module for storage, and calculates instantaneous impact force and power potential energy of the water-coal-slurry by arranging the data analysis module, so that the converted power of the generator and the instantaneous impact torque of fan blades are analyzed, and workers can perform data analysis on the working condition of a power generation system in the actual working process and can perform data analysis on the working condition of the The data is analyzed to adjust the working details, so that the working efficiency of the system is improved, and the scientificity and data service strength of the working adjustment of the system are increased;
2. the data processing module receives the normal power signal, the abnormal power signal, the normal torque signal and the abnormal torque signal and processes the signals, the obtained error report data is transmitted to the display module, the obtained normal loss signal, the obtained excessive loss signal and the loss rate of the generator are transmitted to the alarm module, the data monitoring module obtains temperature data and image data in the area of the generator, the temperature data and the image data are monitored and analyzed, the obtained temperature safety signal, the temperature danger signal, the moving target signal and the fixed target signal are transmitted to the alarm module, the loss rate of the generator circuit is accurately calculated and the temperature and the moving target in the area of the generator are monitored by the data processing module and the data monitoring module, so that the system can independently and timely find possible equipment safety problems and personnel safety problems, the labor intensity of workers is reduced, and the safety of the system in the using process is improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a block diagram of the system of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a safe recovery power generation system (i.e., a water-coal potential energy recovery power generation system) includes a data acquisition module, a data monitoring module, a data analysis module, a data processing module, a data storage module, an alarm module, and a display module;
the data acquisition module is used for acquiring fluid data of the coal water slurry in real time and transmitting the fluid data to the data analysis module, the fluid data comprises time point data, coal water slurry flow rate data, fluid impact angle data and coal water slurry density data, the time point data represents the acquisition time of the fluid data, the coal water slurry flow rate data represents the volume of the coal water slurry fluid passing through the outlet section of the pipeline in unit time in the conveying pipeline, and the data acquisition module is also used for acquiring instantaneous current data and instantaneous voltage data of a generator winding and transmitting the instantaneous current data and the instantaneous voltage data to the data processing module;
the data analysis module performs fluid impact analysis on fluid data of the coal water slurry, transmits the obtained power normal signal and power abnormal signal to the data processing module, transmits the obtained torque normal signal and torque abnormal signal to the alarm module, and transmits the obtained error log data to the data storage module for storage;
the data storage module stores generator specification data, the generator specification data comprise generator winding rated current, generator winding rated voltage and generator spindle maximum bearing torque, the data storage module also stores spindle torque data, the spindle torque data comprise maximum bearing torque and torque length, and the torque length represents the distance from the center of a fan blade to the axis of a spindle;
the data processing module receives the power normal signal, the power abnormal signal, the torque normal signal and the torque abnormal signal and then processes the signals, the obtained error report data is transmitted to the display module, and the obtained normal loss signal, the obtained excessive loss signal and the obtained loss rate of the generator are transmitted to the alarm module;
the data monitoring module is used for acquiring temperature data and image data in a generator equipment area, monitoring and analyzing the temperature data and the image data, and transmitting an obtained temperature safety signal, a temperature danger signal, a moving target signal and a fixed target signal to the alarm module;
the alarm module is used for identifying a torque normal signal, a torque abnormal signal, a normal loss signal, an excessive loss signal, a temperature safety signal, a temperature danger signal, a moving target signal and a fixed target signal, judging that the system operates normally when the torque normal signal, the normal loss signal, the temperature safety signal and the fixed target signal are identified at the same time, not performing any processing, generating an overhaul signal when the excessive loss signal or the torque abnormal signal is identified, generating a system overheat signal when the temperature danger signal is identified, turning on an alarm lamp, generating an intrusion signal when the moving target signal is identified, turning on a buzzer, automatically turning off the buzzer within thirty seconds after the buzzer is turned on, and transmitting the overhaul signal, the system overheat signal and the intrusion signal to the display module by the alarm module;
the display module identifies the overhaul signal, the system overheating signal and the intrusion signal, generates a caption of 'please overhaul the generator' when identifying the overhaul signal, generates a caption of 'the system overheating and please take cooling measures' when identifying the system overheating signal, generates a caption of 'intrusion with target and please stop for confirmation' when identifying the intrusion signal, and puts the generated caption on a display screen for continuous flashing.
The fluid impact analysis specifically comprises the following steps:
c1: marking the time point data as SJi, wherein i is 1,2,3 … … n, marking the water-coal-slurry flow rate data obtained at the corresponding time point as Vi, marking the fluid impact angle obtained at the corresponding time point as alphai, and marking the water-coal-slurry density data obtained at the corresponding time point as rho i;
c2: extracting generator specification data and main shaft torque data from a data storage module, calibrating generator fan blade thickness data as B, marking generator winding rated current as I, marking generator winding rated voltage as U, marking maximum bearing torque as T and marking torque length as L;
c3: according to the calculation formula: the flow mass data is the coal water slurry flow velocity data and the coal water slurry density data, the flow mass data is obtained and marked as Mi, the flow mass data is substituted into a calculation formula, the power potential energy is the flow mass data and the square of the coal water slurry flow velocity data/2, the obtained power potential energy is marked as Eki, and the fluid impact angle and the power potential energy are substituted into the calculation formula:
wherein Ei represents the electric energy converted by the potential energy in unit time, namely the conversion power, lambda represents the energy loss coefficient, the value is 0.46932, the fluid density influence factor and the fluid velocity influence factor are represented, and e represents a natural constant in mathematics;
c4: according to the calculation formula: obtaining the rated power of the generator winding, marking the rated power of the generator winding as P, comparing the converted power with the rated power of the generator winding, generating a normal power signal if the rated power of the generator winding does not exceed the converted power, generating an abnormal power signal if the rated power of the generator winding is greater than the converted power, and meanwhile, according to a calculation formula: calculating the power difference value which is the converted power-the rated power of the generator winding to obtain the power difference value, and integrating the corresponding time point data and the power difference value into error log data;
c5: according to the momentum theorem, the fluid instantaneous impact force in unit time, namely flow mass data, namely coal water slurry flow speed data, is obtained, and the fluid instantaneous impact force is marked as Fi, so that the method comprises the following steps of: obtaining the instantaneous impact torque and marking the instantaneous impact torque as Ti;
c6: and comparing the instantaneous impact torque with the maximum bearing torque, if the instantaneous impact torque does not exceed the maximum bearing torque, generating a torque normal signal, and if the instantaneous impact torque is greater than the maximum bearing torque, generating a torque abnormal signal.
The data processing module comprises the following specific processing steps:
the method comprises the following steps: when the data processing module identifies the normal power signal, no processing is carried out;
step two: when the data processing module identifies the power abnormal signal, extracting error log data from the data storage module, recording the number of the error log data and marking the number as d, dividing twenty-four hours a day into six time periods, and counting time point data in the error log data according to the divided time periods to generate error frequency data in each time period;
step three: presetting a limited error frequency in a data processing module, comparing error frequency data with the limited error frequency, not performing any processing when the error frequency data is less than the limited error frequency, adding the power difference in the period when the error frequency data is more than or equal to the limited error frequency, dividing the power difference by the error frequency data, calculating the average power difference in the period, and integrating the average power difference with the error frequency data in the period to generate error report data;
step four: for power in all error log data eSumming the difference values, dividing the sum by the number of the log strips to obtain a full-time-period average power difference value which is marked as delta P, and substituting the number d of the log strips and the full-time-period average power difference value delta P into a formula:
where SH represents the generator loss rate, SJm represents the first point-in-time in the error log data, SJn represents the last point-in-time in the error log data, a represents the power overload impact factor, b represents the overload time impact bias factor, c represents the overload number impact bias factor, and e represents a natural constant in mathematics;
step five: the method comprises the steps of presetting a generator normal loss limit value in a data processing module, comparing a generator loss rate with the generator normal loss limit value, generating a normal loss signal if the generator loss rate is smaller than the generator normal loss limit value, and generating an excessive loss signal if the generator loss rate is larger than or equal to the generator normal loss limit value.
The specific monitoring and analyzing steps of the data monitoring module are as follows:
k1: labeling acquired temperature data as Wdi, wherein i is 1,2,3 … … n, and labeling acquired image data as Yxj, wherein i is 1,2,3 … … n;
k2: a safe working temperature is preset in the data monitoring module, when the temperature data is less than or equal to the safe working temperature, a temperature safe signal is generated, and when the temperature data exceeds the safe working temperature, a temperature dangerous signal is generated;
k3: establishing a virtual space rectangular coordinate system in an equipment monitoring area, selecting any point in image data as an image characteristic point, generating characteristic point coordinates, comparing the characteristic point coordinates corresponding to different shooting time points, judging that the position of the image is changed when the characteristic point coordinates are changed, wherein the image is a moving image, generating a moving target signal, judging that the position of the image is not changed when the characteristic point coordinates are not changed, and the image is a fixed image, generating a fixed target signal.
The data monitoring module is internally provided with a temperature sensor and a camera, the temperature sensor is used for acquiring temperature data, and the camera is used for acquiring image data.
The display module is an intelligent display device and is in communication connection with the data storage module.
The working principle is as follows: when the invention is used, the data acquisition module acquires the fluid data of the coal water slurry in real time and transmits the fluid data to the data analysis module, the data acquisition module also acquires the instantaneous current data and the instantaneous voltage data of the generator winding and transmits the instantaneous current data and the instantaneous voltage data to the data processing module,
the data analysis module performs fluid impact analysis on fluid data of the coal water slurry, transmits the obtained power normal signal and power abnormal signal to the data processing module, transmits the obtained torque normal signal and torque abnormal signal to the alarm module, transmits the obtained error log data to the data storage module for storage, the data storage module stores generator specification data, the data storage module also stores spindle torque data, the data processing module receives the power normal signal, the power abnormal signal, the torque normal signal and the torque abnormal signal and processes the signals, transmits the obtained error report data to the display module, transmits the obtained normal loss signal, the obtained excessive loss signal and the obtained generator loss rate to the alarm module, the data monitoring module acquires temperature data and image data in a generator equipment area and monitors and analyzes the temperature data and the image data, and transmitting the obtained temperature safety signal, temperature danger signal, moving target signal and fixed target signal to an alarm module, wherein the alarm module identifies a torque normal signal, a torque abnormal signal, a normal loss signal, an excessive loss signal, a temperature safety signal, a temperature danger signal, a moving target signal and a fixed target signal, when the torque normal signal, the normal loss signal, the temperature safety signal and the fixed target signal are identified at the same time, the system is judged to be normally operated without any processing, when the excessive loss signal or the torque abnormal signal is identified, an overhaul signal is generated, when the temperature danger signal is identified, a system overheating signal is generated, an alarm lamp is turned on, when the moving target signal is identified, an intrusion signal is generated, a buzzer is turned on, the buzzer is automatically turned off within thirty seconds after being turned on, the alarm module transmits the overhaul signal, the temperature danger signal and the fixed target signal, The system overheating signal and the intrusion signal are transmitted to the display module, the display module identifies the overhaul signal, the system overheating signal and the intrusion signal, when the overhaul signal is identified, a caption of 'please overhaul the generator' is generated, when the system overheating signal is identified, a caption of 'please overheat the system and please take cooling measures' is generated, when the intrusion signal is identified, a caption of 'intrusion with target, please stop to confirm' is generated, and the generated caption is thrown on a display screen to continuously flash.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A safety recovery power generation system, characterized by: the system comprises a data acquisition module, a data monitoring module, a data analysis module, a data processing module, a data storage module, an alarm module and a display module;
the data acquisition module is used for acquiring fluid data of the coal water slurry in real time and transmitting the fluid data to the data analysis module, the fluid data comprises time point data, coal water slurry flow rate data, fluid impact angle data and coal water slurry density data, the time point data represents the acquisition time of the fluid data, the coal water slurry flow rate data represents the volume of the coal water slurry fluid passing through the outlet section of the pipeline in unit time in the conveying pipeline, and the data acquisition module is also used for acquiring instantaneous current data and instantaneous voltage data of a generator winding and transmitting the instantaneous current data and the instantaneous voltage data to the data processing module;
the data analysis module performs fluid impact analysis on fluid data of the coal water slurry, transmits the obtained power normal signal and power abnormal signal to the data processing module, transmits the obtained torque normal signal and torque abnormal signal to the alarm module, and transmits the obtained error log data to the data storage module for storage;
the data storage module stores generator specification data, the generator specification data comprise generator winding rated current, generator winding rated voltage and generator spindle maximum bearing torque, the data storage module also stores spindle torque data, the spindle torque data comprise maximum bearing torque and torque length, and the torque length represents the distance from the center of a fan blade to the axis of a spindle;
the data processing module receives the power normal signal, the power abnormal signal, the torque normal signal and the torque abnormal signal and then processes the signals, the obtained error report data is transmitted to the display module, and the obtained normal loss signal, the obtained excessive loss signal and the obtained loss rate of the generator are transmitted to the alarm module;
the data monitoring module is used for acquiring temperature data and image data in a generator equipment area, monitoring and analyzing the temperature data and the image data, and transmitting an obtained temperature safety signal, a temperature danger signal, a moving target signal and a fixed target signal to the alarm module;
the alarm module is used for identifying a torque normal signal, a torque abnormal signal, a normal loss signal, an excessive loss signal, a temperature safety signal, a temperature danger signal, a moving target signal and a fixed target signal, judging that the system operates normally when the torque normal signal, the normal loss signal, the temperature safety signal and the fixed target signal are identified at the same time, not performing any processing, generating an overhaul signal when the excessive loss signal or the torque abnormal signal is identified, generating a system overheat signal when the temperature danger signal is identified, turning on an alarm lamp, generating an intrusion signal when the moving target signal is identified, turning on a buzzer, automatically turning off the buzzer within thirty seconds after the buzzer is turned on, and transmitting the overhaul signal, the system overheat signal and the intrusion signal to the display module by the alarm module;
the display module identifies the overhaul signal, the system overheating signal and the intrusion signal, generates a caption of 'please overhaul the generator' when identifying the overhaul signal, generates a caption of 'the system overheating and please take cooling measures' when identifying the system overheating signal, generates a caption of 'intrusion with target and please stop for confirmation' when identifying the intrusion signal, and puts the generated caption on a display screen for continuous flashing.
2. A safety recovery power generation system according to claim 1, wherein the fluid impact analysis comprises in particular the steps of:
c1: marking the time point data as SJi, wherein i is 1,2,3 … … n, marking the water-coal-slurry flow rate data obtained at the corresponding time point as Vi, marking the fluid impact angle obtained at the corresponding time point as alphai, and marking the water-coal-slurry density data obtained at the corresponding time point as rho i;
c2: extracting generator specification data and main shaft torque data from a data storage module, calibrating generator fan blade thickness data as B, marking generator winding rated current as I, marking generator winding rated voltage as U, marking maximum bearing torque as T and marking torque length as L;
c3: according to the calculation formula: the flow mass data is the coal water slurry flow velocity data and the coal water slurry density data, the flow mass data is obtained and marked as Mi, the flow mass data is substituted into a calculation formula, the power potential energy is the flow mass data and the square of the coal water slurry flow velocity data/2, the obtained power potential energy is marked as Eki, and the fluid impact angle and the power potential energy are substituted into the calculation formula:
where Ei represents the electrical energy converted from potential energy per unit time, i.e., the conversion power, and λ represents the energy loss coefficientThe value is 0.46932, which represents the fluid density influence factor and the fluid velocity influence factor, and e represents a natural constant in mathematics;
c4: according to the calculation formula: obtaining the rated power of the generator winding, marking the rated power of the generator winding as P, comparing the converted power with the rated power of the generator winding, generating a normal power signal if the rated power of the generator winding does not exceed the converted power, generating an abnormal power signal if the rated power of the generator winding is greater than the converted power, and meanwhile, according to a calculation formula: calculating the power difference value which is the converted power-the rated power of the generator winding to obtain the power difference value, and integrating the corresponding time point data and the power difference value into error log data;
c5: according to the momentum theorem, the fluid instantaneous impact force in unit time, namely flow mass data, namely coal water slurry flow speed data, is obtained, and the fluid instantaneous impact force is marked as Fi, so that the method comprises the following steps of: obtaining the instantaneous impact torque and marking the instantaneous impact torque as Ti;
c6: and comparing the instantaneous impact torque with the maximum bearing torque, if the instantaneous impact torque does not exceed the maximum bearing torque, generating a torque normal signal, and if the instantaneous impact torque is greater than the maximum bearing torque, generating a torque abnormal signal.
3. The safety recovery power generation system of claim 1, wherein the data processing module comprises the following specific processing steps:
the method comprises the following steps: when the data processing module identifies the normal power signal, no processing is carried out;
step two: when the data processing module identifies the power abnormal signal, extracting error log data from the data storage module, recording the number of the error log data and marking the number as d, dividing twenty-four hours a day into six time periods, and counting time point data in the error log data according to the divided time periods to generate error frequency data in each time period;
step three: presetting a limited error frequency in a data processing module, comparing error frequency data with the limited error frequency, not performing any processing when the error frequency data is less than the limited error frequency, adding the power difference in the period when the error frequency data is more than or equal to the limited error frequency, dividing the power difference by the error frequency data, calculating the average power difference in the period, and integrating the average power difference with the error frequency data in the period to generate error report data;
step four: summing the power difference values in all error log data e, dividing the sum by the number of log strips to obtain the average power difference value in the whole time period, marking the average power difference value as delta P, and substituting the number of log strips d and the average power difference value delta P in the whole time period into a formula:
where SH represents the generator loss rate, SJm represents the first point-in-time in the error log data, SJn represents the last point-in-time in the error log data, a represents the power overload impact factor, b represents the overload time impact bias factor, c represents the overload number impact bias factor, and e represents a natural constant in mathematics;
step five: the method comprises the steps of presetting a generator normal loss limit value in a data processing module, comparing a generator loss rate with the generator normal loss limit value, generating a normal loss signal if the generator loss rate is smaller than the generator normal loss limit value, and generating an excessive loss signal if the generator loss rate is larger than or equal to the generator normal loss limit value.
4. The safety recovery power generation system of claim 1, wherein the specific monitoring and analysis steps of the data monitoring module are as follows:
k1: labeling acquired temperature data as Wdi, wherein i is 1,2,3 … … n, and labeling acquired image data as Yxj, wherein i is 1,2,3 … … n;
k2: a safe working temperature is preset in the data monitoring module, when the temperature data is less than or equal to the safe working temperature, a temperature safe signal is generated, and when the temperature data exceeds the safe working temperature, a temperature dangerous signal is generated;
k3: establishing a virtual space rectangular coordinate system in an equipment monitoring area, selecting any point in image data as an image characteristic point, generating characteristic point coordinates, comparing the characteristic point coordinates corresponding to different shooting time points, judging that the position of the image is changed when the characteristic point coordinates are changed, wherein the image is a moving image, generating a moving target signal, judging that the position of the image is not changed when the characteristic point coordinates are not changed, and the image is a fixed image, generating a fixed target signal.
5. The safety recovery power generation system of claim 1, wherein a temperature sensor and a camera are disposed in the data monitoring module, the temperature sensor is used for acquiring temperature data, and the camera is used for acquiring image data.
6. A safety recovery power generation system according to claim 1, wherein the display module is an intelligent display device, the display module being communicatively coupled to the data storage module.
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