CN112185038B - 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 54
- 238000012545 processing Methods 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000002002 slurry Substances 0.000 claims abstract description 47
- 238000012544 monitoring process Methods 0.000 claims abstract description 28
- 238000013500 data storage Methods 0.000 claims abstract description 26
- 238000007405 data analysis Methods 0.000 claims abstract description 21
- 238000005381 potential energy Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 53
- 238000004804 winding Methods 0.000 claims description 38
- 230000002159 abnormal effect Effects 0.000 claims description 36
- 238000004364 calculation method Methods 0.000 claims description 19
- 238000004458 analytical method Methods 0.000 claims description 12
- 238000012790 confirmation Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000003250 coal slurry Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 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
- 239000000446 fuel 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
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- 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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- 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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- G—PHYSICS
- G08—SIGNALLING
- 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 safe 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 workers can analyze the working condition of the power generation system in the actual working process and adjust the working state of the system, the working efficiency of the system is improved, the scientificity and the data transmission strength are improved, the loss rate of a generator circuit is calculated and the temperature and the moving target in a device area are monitored through the data processing module and the data monitoring module, the system can autonomously and timely find possible equipment and personnel safety problems, and 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
The coal water slurry is a new, high-efficiency and clean coal-base fuel, and is a mixture made up by using 65% -70% of coal with different grain size distribution, 29% -34% of water and about 1% of chemical additive. Through a plurality of strict procedures, impurities such as unburned components in the coal are removed, and only the carbon essence is maintained to become essence of the coal water slurry. It has the same fluidity as petroleum and a calorific value equivalent to half of that of oil, called liquid coal product. The coal water slurry technology comprises key technologies such as coal water slurry preparation, storage and transportation, combustion, additives and the like, is a system technology related to multiple subjects, has the characteristics of high combustion efficiency, low pollutant emission and the like, can be used for replacing oil, gas and coal in power station boilers, industrial boilers and industrial kilns, and heating and living hot water in various buildings such as hotels, houses, hotels and office buildings, and is an important component of the current clean coal technology.
However, the coal water slurry is basically combusted, so that heat energy generated by combustion is utilized, and a large amount of potential energy is also stored in the coal water slurry in the pipeline transportation process, so that the utilization of the potential energy of the coal water slurry is lacking in the prior art, and the waste of energy is caused. Therefore, we propose a safe recovery power generation system for water-coal potential energy.
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 kinetic potential energy of coal water slurry, so that the conversion power of a generator and the instantaneous impact torque of fan blades are analyzed, and workers can perform data analysis on the working condition of the power generation system and perform work detail adjustment based on analysis data in the actual working process, thereby improving the working efficiency of the system, and increasing the scientificity and the data transmission degree of the system work adjustment; through setting up data processing module and data monitoring module, carry out accurate calculation and monitor the temperature and the moving target in the equipment region to generator circuit's loss rate to make the system can independently in time discover equipment safety problem and personnel's safety problem that probably appears, reduce staff's intensity of labour, improve the security of system in the use.
The technical problems solved by the invention are as follows:
(1) How to calculate the instantaneous impact force and the kinetic potential energy of the coal water slurry by arranging a data analysis module so as to analyze the conversion power of the generator and the instantaneous impact torque of the fan blades, thereby solving the problem that the data analysis on the working condition of the power generation system and the working detail adjustment based on the analysis data are difficult to carry out in the actual working process;
(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, so that the equipment safety problem and the personnel safety problem possibly occurring in the actual work are solved.
The aim of the invention can be achieved by the following technical scheme: the 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, wherein 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 acquisition time of the fluid data, the coal water slurry flow rate data represents the volume of the coal water slurry fluid passing through an outlet section of the pipeline in unit time in a 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, wherein the generator specification data comprises 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 comprises maximum bearing torque and torque length, and the torque length represents the distance from the center of the fan blade to the spindle axis;
the data processing module receives and processes the power normal signal, the power abnormal signal, the torque normal signal and the torque abnormal signal, transmits the obtained error report data to the display module, and 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 is used for acquiring temperature data and image data in the generator equipment area, monitoring and analyzing the temperature data and the image data, and transmitting the acquired temperature safety signals, temperature danger signals, moving target signals and fixed target signals 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 is normal in operation and does not perform any processing when the torque normal signal, the normal loss signal, the temperature safety signal and the fixed target signal are identified at the same time, 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, starting an alarm lamp, generating an intrusion signal when the moving target signal is identified, starting a buzzer, and automatically closing the buzzer within thirty seconds after the buzzer is started, wherein the alarm module transmits the overhaul signal, the system overheat signal and the intrusion signal to the display module;
the display module is used for identifying an overhaul signal, a system overheat signal and an intrusion signal, generating a caption of ' please overhaul the generator ' when the overhaul signal is identified, generating a caption of ' system overheat ' when the system overheat signal is identified, please take cooling measures ', generating a caption of ' target intrusion, please stop confirmation ' when the intrusion signal is identified, and putting the generated caption on a display screen to flicker uninterruptedly.
The invention further technically improves that: the fluid impact analysis specifically comprises the following steps:
c1: marking time point data as SJ i, wherein i=1, 2,3 … … n, marking the water-coal-slurry flow velocity data obtained at the corresponding time point as Vi, marking the fluid impact angle obtained at the corresponding time point as alpha i, 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 the thickness data of a generator blade as B, marking the rated current of a generator winding as I, marking the rated voltage of the generator winding as U, marking the maximum bearing torque as T, and marking the torque length as L;
and C3: according to the calculation formula: flow mass data = coal water slurry flow velocity data × coal water slurry density data, flow mass data is obtained and labeled Mi, and flow is obtainedThe quantity and mass data are substituted into a calculation formula that power potential energy= (square of flow mass data and 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 E i represents potential energy converted electric energy in unit time, namely converted power, lambda represents an energy loss coefficient, the value is 0.46932, delta represents a fluid density influence factor, epsilon represents a fluid speed influence factor, and e represents a natural constant in mathematics;
and C4: according to the calculation formula: the rated power of the generator winding=rated current of the generator winding, the rated power of the generator winding is obtained and marked as P, the converted power is compared with the rated power of the generator winding, if the rated power of the generator winding does not exceed the converted power, a power normal signal is generated, if the rated power of the generator winding is larger than the converted power, a power abnormal signal is generated, and meanwhile, according to a calculation formula: calculating the power difference value = conversion power-rated power of the generator winding to obtain the power difference value, and integrating corresponding time point data and the power difference value into error log data;
c5: according to the momentum theorem, fluid instantaneous impact force = flow mass data =coal water slurry flow velocity data in unit time is obtained, and the fluid instantaneous impact force is marked as F i, so that according to the calculation formula: instantaneous impact torque = instantaneous impact force x torque length, instantaneous impact torque is obtained and labeled T i;
c6: and comparing the instantaneous impact torque with the maximum bearing torque, generating a torque normal signal if the instantaneous impact torque does not exceed the maximum bearing torque, and generating a torque abnormal signal if the instantaneous impact torque is greater than the maximum bearing torque.
The invention further technically improves that: the specific processing steps of the data processing module are as follows:
step one: when the data processing module recognizes the normal power signal, no processing is performed;
step two: when the data processing module identifies a power abnormality signal, error log data are extracted from the data storage module, the log number of the error log data is recorded and marked as d, twenty-four hours a day is divided into six time periods, and time point data in the error log data are counted according to the divided time periods to generate error time data in each time period;
step three: the method comprises the steps that a limiting error frequency is preset in a data processing module, error frequency data are compared with the limiting error frequency, when the error frequency data are smaller than the limiting error frequency, no processing is carried out, when the error frequency data are larger than or equal to the limiting error frequency, the power difference value in a period is added and divided by the error frequency data, the average power difference value in the period is obtained, and the average power difference value and the error frequency data in the period are integrated to generate error report data;
step four: summing the power differences in all error log data e, dividing the power differences by the log number to obtain a full-period average power difference value, marking the full-period average power difference value as delta P, and substituting the log number d and the full-period average power difference value delta P into a formula:wherein SH represents the generator loss rate, SJm represents the first time point data in the error log data, SJn represents the last time point data in the error log data, a represents the power overload influence factor, b represents the overload time influence deviation factor, c represents the overload times influence deviation factor, and e represents a natural constant in mathematics;
step five: and a normal loss limit value of the generator is preset in the data processing module, the loss rate of the generator is compared with the normal loss limit value of the generator, if the loss rate of the generator is smaller than the normal loss limit value of the generator, a normal loss signal is generated, and if the loss rate of the generator is larger than or equal to the normal loss limit value of the generator, an excessive loss signal is generated.
The invention further technically improves that: the specific monitoring and analyzing steps of the data monitoring module are as follows:
k1: the acquired temperature data is marked as Wd i, where i=1, 2,3 … … n, and the acquired image data is marked as Yxj, where j=1, 2,3 … … n;
k2: the data monitoring module is preset with a safe working temperature, when the temperature data is smaller than or equal to the safe working temperature, a temperature safety signal is generated, and when the temperature data exceeds the safe working temperature, a temperature danger signal is generated;
k3: and establishing a virtual space rectangular coordinate system in the equipment monitoring area, selecting any point in image data as an image characteristic point, producing characteristic point coordinates, comparing the characteristic point coordinates corresponding to different shooting time points, judging that the image position is changed when the characteristic point coordinates are changed, generating a moving target signal by using the image as a moving image, judging that the image position is not changed when the characteristic point coordinates are not changed, and generating a fixed target signal by using the image as a fixed image.
The invention further technically improves that: the temperature sensor is used for acquiring temperature data, and the camera is used for acquiring image data.
The invention further technically improves that: the display module is intelligent display equipment, and the display module is in communication connection with the data storage module.
Compared with the prior art, the invention has the beneficial effects that:
1. when the system is used, the data acquisition module acquires 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 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 carries out fluid impact analysis on the fluid data of the coal water slurry, transmits the obtained power normal signals and power abnormal signals to the data processing module, transmits the obtained torque normal signals and torque abnormal signals to the alarm module, transmits the obtained error log data to the data storage module for storage, and calculates the instantaneous impact force and the power potential energy of the coal water slurry by the data analysis module, so that the conversion power of the generator and the instantaneous impact torque of the fan blade can be analyzed, and workers can carry out data analysis on the working condition of the power generation system and work detail adjustment based on the analysis data in the actual working process, thereby improving the working efficiency of the system, and increasing the scientificity and the data of the system work adjustment;
2. the data processing module receives the power normal signal, the power abnormal signal, the torque normal signal and the torque abnormal signal, processes the power normal signal, the torque normal signal and the torque abnormal signal, 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, and the data monitoring module acquires the temperature data and the image data in the generator equipment area, monitors and analyzes the temperature data and the image data, and transmits the obtained temperature safety signal, the temperature danger signal, the moving target signal and the fixed target signal to the alarm module.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
Fig. 1 is a system block diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to FIG. 1, a safety recovery power generation system (i.e. water-coal potential energy 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, wherein 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 acquisition time of the fluid data, the coal water slurry flow rate data represents the volume of the coal water slurry fluid passing through an outlet section of the pipeline in unit time in a 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, wherein the generator specification data comprises 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 comprises maximum bearing torque and torque length, and the torque length represents the distance from the center of the fan blade to the spindle axis;
the data processing module receives and processes the power normal signal, the power abnormal signal, the torque normal signal and the torque abnormal signal, transmits the obtained error report data to the display module, and 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 is used for acquiring temperature data and image data in the generator equipment area, monitoring and analyzing the temperature data and the image data, and transmitting the acquired temperature safety signals, temperature danger signals, moving target signals and fixed target signals 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 is normal in operation and does not perform any processing when the torque normal signal, the normal loss signal, the temperature safety signal and the fixed target signal are identified at the same time, 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, starting an alarm lamp, generating an intrusion signal when the moving target signal is identified, starting a buzzer, and automatically closing the buzzer within thirty seconds after the buzzer is started, wherein the alarm module transmits the overhaul signal, the system overheat signal and the intrusion signal to the display module;
the display module is used for identifying an overhaul signal, a system overheat signal and an intrusion signal, generating a caption of ' please overhaul the generator ' when the overhaul signal is identified, generating a caption of ' system overheat ' when the system overheat signal is identified, please take cooling measures ', generating a caption of ' target intrusion, please stop confirmation ' when the intrusion signal is identified, and putting the generated caption on a display screen to flicker uninterruptedly.
The fluid impact analysis specifically comprises the following steps:
c1: marking time point data as SJ i, wherein i=1, 2,3 … … n, marking the water-coal-slurry flow velocity data obtained at the corresponding time point as Vi, marking the fluid impact angle obtained at the corresponding time point as alpha i, 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 the thickness data of a generator blade as B, marking the rated current of a generator winding as I, marking the rated voltage of the generator winding as U, marking the maximum bearing torque as T, and marking the torque length as L;
and C3: according to the calculation formula: flow mass data = coal water slurry flow velocity data x coal water slurry density data, flow mass data is obtained and marked as Mi, the flow mass data is substituted into a calculation formula: kinetic potential energy= (square of flow mass data x coal water slurry flow velocity data)/2, the obtained kinetic potential energy is marked as eki, and the fluid impact angle and the kinetic potential energy are substituted into the calculation formula:wherein Ei represents potential energy converted electric energy in unit time, namely converted power, lambda represents an energy loss coefficient, the value is 0.46932, delta represents a fluid density influence factor, epsilon represents a fluid speed influence factor, and e represents a natural constant in mathematics;
and C4: according to the calculation formula: the rated power of the generator winding=rated current of the generator winding, the rated power of the generator winding is obtained and marked as P, the converted power is compared with the rated power of the generator winding, if the rated power of the generator winding does not exceed the converted power, a power normal signal is generated, if the rated power of the generator winding is larger than the converted power, a power abnormal signal is generated, and meanwhile, according to a calculation formula: calculating the power difference value = conversion power-rated power of the generator winding to obtain the power difference value, and integrating corresponding time point data and the power difference value into error log data;
c5: according to the momentum theorem, fluid instantaneous impact force = flow mass data =coal water slurry flow velocity data in unit time is obtained, and the fluid instantaneous impact force is marked as F i, so that according to the calculation formula: instantaneous impact torque = instantaneous impact force x torque length, instantaneous impact torque is obtained and labeled T i;
c6: and comparing the instantaneous impact torque with the maximum bearing torque, generating a torque normal signal if the instantaneous impact torque does not exceed the maximum bearing torque, and generating a torque abnormal signal if the instantaneous impact torque is greater than the maximum bearing torque.
The specific processing steps of the data processing module are as follows:
step one: when the data processing module recognizes the normal power signal, no processing is performed;
step two: when the data processing module identifies a power abnormality signal, error log data are extracted from the data storage module, the log number of the error log data is recorded and marked as d, twenty-four hours a day is divided into six time periods, and time point data in the error log data are counted according to the divided time periods to generate error time data in each time period;
step three: the method comprises the steps that a limiting error frequency is preset in a data processing module, error frequency data are compared with the limiting error frequency, when the error frequency data are smaller than the limiting error frequency, no processing is carried out, when the error frequency data are larger than or equal to the limiting error frequency, the power difference value in a period is added and divided by the error frequency data, the average power difference value in the period is obtained, and the average power difference value and the error frequency data in the period are integrated to generate error report data;
step four: summing the power differences in all error log data e, dividing the power differences by the log number to obtain a full-period average power difference value, marking the full-period average power difference value as delta P, and substituting the log number d and the full-period average power difference value delta P into a formula:wherein SH represents the generator loss rate, SJm represents the first time point data in the error log data, SJn represents the last time point data in the error log data, a represents the power overload influence factor, b represents the overload time influence deviation factor, c represents the overload times influence deviation factor, and e represents a natural constant in mathematics;
step five: and a normal loss limit value of the generator is preset in the data processing module, the loss rate of the generator is compared with the normal loss limit value of the generator, if the loss rate of the generator is smaller than the normal loss limit value of the generator, a normal loss signal is generated, and if the loss rate of the generator is larger than or equal to the normal loss limit value of the generator, an excessive loss signal is generated.
The specific monitoring and analyzing steps of the data monitoring module are as follows:
k1: the acquired temperature data is marked as Wd i, where i=1, 2,3 … … n, and the acquired image data is marked as Yxj, where j=1, 2,3 … … n;
k2: the data monitoring module is preset with a safe working temperature, when the temperature data is smaller than or equal to the safe working temperature, a temperature safety signal is generated, and when the temperature data exceeds the safe working temperature, a temperature danger signal is generated;
k3: and establishing a virtual space rectangular coordinate system in the equipment monitoring area, selecting any point in image data as an image characteristic point, producing characteristic point coordinates, comparing the characteristic point coordinates corresponding to different shooting time points, judging that the image position is changed when the characteristic point coordinates are changed, generating a moving target signal by using the image as a moving image, judging that the image position is not changed when the characteristic point coordinates are not changed, and generating a fixed target signal by using the image as a fixed image.
The temperature sensor is used for acquiring temperature data, and the camera is used for acquiring image data.
The display module is intelligent display equipment, and the display module is in communication connection with the data storage module.
Working principle: 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, the obtained power normal signal and power abnormal signal are transmitted to the data processing module, the obtained torque normal signal and torque abnormal signal are transmitted to the alarm module, the obtained error log data are transmitted to the data storage module for storage, the data storage module stores generator specification data, spindle torque data are also stored in the data storage module, the data processing module receives and processes the power normal signal, the power abnormal signal, the torque normal signal and the torque abnormal signal, the obtained error report data are transmitted to the display module, the obtained normal loss signal, the excessive loss signal and the generator loss rate are transmitted to the alarm module, the data monitoring module obtains temperature data and image data in a generator equipment area, the obtained temperature safety signal, the obtained temperature dangerous signal, the moving target signal and the fixed target signal are monitored and analyzed, the alarm module recognizes the torque normal signal, the torque abnormal signal, the torque normal signal, the normal loss signal, the excessive loss signal, the temperature safety signal, the temperature dangerous signal, the moving target signal and the fixed target signal, when the torque normal signal, the power abnormal signal, the excessive loss signal, the temperature safety signal and the temperature dangerous signal are recognized, the system is recognized, when the torque normal signal is recognized, the temperature safety signal is recognized, the alarm signal is generated, the alarm signal is turned on, the alarm signal is turned off when the alarm signal is automatically, the alarm signal is generated, the alarm signal is turned off, the alarm signal is turned on, when the alarm signal is generated, and the alarm signal is turned on, and the alarm signal is turned off when the abnormal signal is generated, and the alarm signal is automatically is turned on, the alarm module transmits an overhaul signal, a system overheat signal and an intrusion signal to the display module, the display module identifies the overhaul signal, the system overheat signal and the intrusion signal, when the overhaul signal is identified, the caption of the ' overhaul generator ' is generated, when the system overheat signal is identified, the caption of the ' system overheat ' is generated, the ' cooling measure ' is adopted, when the intrusion signal is identified, the caption of the ' target intrusion, the ' stop confirmation ' is generated, and the generated caption is put on the display screen to flicker continuously.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form 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 understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. A safety recovery power generation system, characterized in that: 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, wherein 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 acquisition time of the fluid data, the coal water slurry flow rate data represents the volume of the coal water slurry fluid passing through an outlet section of the pipeline in unit time in a 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, wherein the generator specification data comprises 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 comprises maximum bearing torque and torque length, and the torque length represents the distance from the center of the fan blade to the spindle axis;
the data processing module receives and processes the power normal signal, the power abnormal signal, the torque normal signal and the torque abnormal signal, and transmits the obtained error report data to the display module, and the data processing module generates a normal loss signal, an excessive loss signal and a generator loss rate; transmitting the obtained normal loss signal, excessive loss signal and generator loss rate to an alarm module;
the data monitoring module is used for acquiring temperature data and image data in the generator equipment area, monitoring and analyzing the temperature data and the image data, and transmitting the acquired temperature safety signals, temperature danger signals, moving target signals and fixed target signals 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 is normal in operation and does not perform any processing when the torque normal signal, the normal loss signal, the temperature safety signal and the fixed target signal are identified at the same time, 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, starting an alarm lamp, generating an intrusion signal when the moving target signal is identified, starting a buzzer, and automatically closing the buzzer within thirty seconds after the buzzer is started, wherein the alarm module transmits the overhaul signal, the system overheat signal and the intrusion signal to the display module;
the display module is used for identifying an overhaul signal, a system overheat signal and an intrusion signal, generating a caption of ' please overhaul the generator ' when the overhaul signal is identified, generating a caption of ' system overheat ' when the system overheat signal is identified, please take cooling measures ', generating a caption of ' target intrusion, please stop confirmation ' when the intrusion signal is identified, and putting the generated caption on a display screen to flicker uninterruptedly.
2. The safety-recovery power generation system of claim 1, wherein the fluid impact analysis specifically comprises the steps of:
c1: the time point data are marked as SJi, wherein i=1, 2,3 … … n, the coal water slurry flow velocity data acquired at the corresponding time point are marked as Vi, the fluid impact angle acquired at the corresponding time point is marked as αi, and the coal water slurry density data acquired at the corresponding time point are marked as ρi;
c2: extracting generator specification data and main shaft torque data from a data storage module, calibrating the thickness data of a generator blade as B, marking the rated current of a generator winding as I, marking the rated voltage of the generator winding as U, marking the maximum bearing torque as T, and marking the torque length as L;
and C3: according to the calculation formula: flow mass data = coal water slurry flow velocity data x coal water slurry density data, flow mass data is obtained and marked as Mi, the flow mass data is substituted into a calculation formula: kinetic potential energy= (square of flow mass data x coal water slurry flow velocity data)/2, the obtained kinetic potential energy is marked as Eki, and the fluid impact angle and the kinetic potential energy are substituted into the calculation formula:wherein Ei represents potential energy converted electric energy in unit time, namely converted power, lambda represents an energy loss coefficient, the value is 0.46932, delta represents a fluid density influence factor, epsilon represents a fluid speed influence factor, and e represents a natural constant in mathematics;
and C4: according to the calculation formula: the rated power of the generator winding=rated current of the generator winding, the rated power of the generator winding is obtained and marked as P, the converted power is compared with the rated power of the generator winding, if the rated power of the generator winding does not exceed the converted power, a power normal signal is generated, if the rated power of the generator winding is larger than the converted power, a power abnormal signal is generated, and meanwhile, according to a calculation formula: calculating the power difference value = conversion power-rated power of the generator winding to obtain the power difference value, and integrating corresponding time point data and the power difference value into error log data;
c5: according to the momentum theorem, fluid instantaneous impact force=flow mass data in unit time are obtained, coal water slurry flow velocity data are obtained, and the fluid instantaneous impact force is marked as Fi, so that according to the calculation formula: instantaneous impact torque = instantaneous impact force x torque length, the instantaneous impact torque is obtained and marked as Ti;
c6: and comparing the instantaneous impact torque with the maximum bearing torque, generating a torque normal signal if the instantaneous impact torque does not exceed the maximum bearing torque, and generating a torque abnormal signal if the instantaneous impact torque is greater than the maximum bearing torque.
3. The safety-recovery power generation system of claim 1, wherein the data processing module comprises the following specific processing steps:
step one: when the data processing module recognizes the normal power signal, no processing is performed;
step two: when the data processing module identifies a power abnormality signal, error log data are extracted from the data storage module, the log number of the error log data is recorded and marked as d, twenty-four hours a day is divided into six time periods, and time point data in the error log data are counted according to the divided time periods to generate error time data in each time period;
step three: the method comprises the steps that a limiting error frequency is preset in a data processing module, error frequency data are compared with the limiting error frequency, when the error frequency data are smaller than the limiting error frequency, no processing is carried out, when the error frequency data are larger than or equal to the limiting error frequency, the power difference value in a period is added and divided by the error frequency data, the average power difference value in the period is obtained, and the average power difference value and the error frequency data in the period are integrated to generate error report data;
step four: summing the power differences in all error log data e, dividing the power differences by the log number to obtain a full-period average power difference value, marking the full-period average power difference value as delta P, and substituting the log number d and the full-period average power difference value delta P into a formula:wherein SH represents the generator loss rate, SJm represents the first time point data in the error log data, SJn represents the last time point data in the error log data, a represents the power overload influence factor, b represents the overload time influence deviation factor, c represents the overload times influence deviation factor, and e represents a natural constant in mathematics;
step five: and a normal loss limit value of the generator is preset in the data processing module, the loss rate of the generator is compared with the normal loss limit value of the generator, if the loss rate of the generator is smaller than the normal loss limit value of the generator, a normal loss signal is generated, and if the loss rate of the generator is larger than or equal to the normal loss limit value of the generator, an excessive loss signal is generated.
4. The safety-recovery power generation system of claim 1, wherein the data monitoring module comprises the following specific monitoring analysis steps:
k1: the acquired temperature data is marked as Wdi, where i=1, 2,3 … … n, and the acquired image data is marked as Yxj, where j=1, 2,3 … … n;
k2: the data monitoring module is preset with a safe working temperature, when the temperature data is smaller than or equal to the safe working temperature, a temperature safety signal is generated, and when the temperature data exceeds the safe working temperature, a temperature danger signal is generated;
k3: and establishing a virtual space rectangular coordinate system in the equipment monitoring area, selecting any point in image data as an image characteristic point, producing characteristic point coordinates, comparing the characteristic point coordinates corresponding to different shooting time points, judging that the image position is changed when the characteristic point coordinates are changed, generating a moving target signal by using the image as a moving image, judging that the image position is not changed when the characteristic point coordinates are not changed, and generating a fixed target signal by using the image as a fixed image.
5. The safety recovery power generation system according to claim 1, wherein a temperature sensor and a camera are arranged in the data monitoring module, the temperature sensor is used for acquiring temperature data, and the camera is used for acquiring image data.
6. The safety-recovery power generation system of claim 1, wherein the display module is an intelligent display device, and wherein the display module is communicatively coupled to the data storage module.
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