CN113466429A - Precision detection method and system for coal instrument - Google Patents
Precision detection method and system for coal instrument Download PDFInfo
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- CN113466429A CN113466429A CN202110832804.8A CN202110832804A CN113466429A CN 113466429 A CN113466429 A CN 113466429A CN 202110832804 A CN202110832804 A CN 202110832804A CN 113466429 A CN113466429 A CN 113466429A
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- 239000003245 coal Substances 0.000 title claims abstract description 135
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- 239000011593 sulfur Substances 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 abstract description 21
- 238000002156 mixing Methods 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 description 9
- 238000007726 management method Methods 0.000 description 6
- 238000003908 quality control method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/222—Solid fuels, e.g. coal
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- General Health & Medical Sciences (AREA)
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Abstract
The invention provides a method and a system for detecting the precision of a coal instrument, which comprise a data acquisition unit and a control unit, wherein the control unit and the data acquisition unit compare real-time parameters acquired by the data acquisition unit with preset parameter thresholds, and the precision of the coal instrument is determined according to the comparison result. The accuracy of the analysis instrument is determined each time by the control unit. The tester can conveniently find the reason and then measure the reason again until the reason is qualified, and the tester can test the coal sample to ensure the accuracy of the tester. The accuracy of the produced coal sample result is known by tracking and controlling the precision of the instrument through the control unit, and the control on the coal quality detection result is realized from the aspect of instrument stability. The transparency of the acceptance link and the reliability of the acceptance result are increased, and accurate data are provided for coal acceptance settlement and blending and burning of coal as fired. The accuracy of the acceptance link is effectively improved, the coal consumption is indirectly reduced through the blending means, and the utilization rate and the safety of the unit are improved.
Description
Technical Field
The invention relates to the technical field of instrument detection, in particular to a method and a system for detecting precision of a coal instrument.
Background
At present, coal is used as an essential important raw material in the production of a thermal power plant, and the purchase cost of the coal always occupies the main cost of a thermal power generation enterprise. In order to reduce fuel purchasing cost, increase enterprise benefits and improve enterprise competitiveness, the utilization rate of a unit needs to be improved, the quality acceptance management of coal is enhanced, the coal acceptance is refined, opened and transparent, and meanwhile, the working efficiency is improved.
The accuracy and the stability of the coal analysis equipment are main factors influencing the coal analysis result, the management of the coal marking entity is realized on the aspects of the coal marking quality of a coal marking laboratory, such as the delivery value, the delivery standard value, the uncertainty, the inventory, the validity period, the use warehouse-in and warehouse-out, the destruction and the like of the marked coal, the coal marking result of each coal analysis instrument is automatically collected in the application aspect, the standard coal quality control curve of each coal analysis instrument is automatically compared and analyzed with the standard value, and the stability of the instrument precision is visually displayed. The accuracy of the coal sample production result is known by tracking and controlling the instrument quality control curve diagram, and the coal quality detection result is controlled from the aspect of instrument stability. The transparency of the acceptance link and the reliability of the acceptance result are increased, and accurate data are provided for coal acceptance settlement and blending and burning of coal as fired. The accuracy of the acceptance link is effectively improved, the coal consumption is indirectly reduced through the blending means, and the utilization rate and the safety of the unit are improved.
At present, the existing quality control realizes the precision check of an instrument by periodically calibrating the instrument. For example: the calorimeter is calibrated for heat capacity by benzoic acid. And determining the credibility of the coal sample production result by comparing the coal sample analysis and sampling inspection coal sample analysis.
Because the calorimeter is calibrated regularly (once every three months), the stability of the precision of the instrument cannot be accurately reflected.
Meanwhile, the coal sample comparison and sampling analysis can only determine the range of the difference of the results of the coal sample comparison and sampling analysis, and cannot reflect the precision stability of the equipment.
Disclosure of Invention
The invention provides an instrument detection system, which improves the stability of instrument precision, effectively improves the accuracy of an acceptance link, indirectly reduces coal consumption by a blending means, and improves the utilization rate and safety of a unit.
The embodiment of the invention provides a method for detecting the precision of a coal instrument, which comprises the following steps:
s1, the data acquisition unit acquires real-time parameters of the coal instrument during working and transmits the real-time parameters to the control unit;
and S2, comparing the real-time parameter with a preset standard parameter threshold value by the control unit to obtain the precision of the coal instrument.
Further, the method further comprises:
and S3, controlling the working state of the early warning unit according to the precision degree in the S2 by the control unit.
Further, the control unit in S2 compares the real-time parameter with a preset standard parameter threshold to obtain the precision of the coal instrument, which specifically includes:
when the real-time parameter is within the standard parameter threshold range, the precision of the coal instrument meets the requirement; otherwise, the precision of the coal instrument can not meet the requirement.
Further, the control unit in S3 controls the working state of the early warning unit according to the precision in S2, specifically:
when the precision of the coal instrument meets the requirement, the early warning unit does not work;
and when the precision of the coal instrument does not meet the requirement, the early warning unit works.
Further, the data acquisition unit in S1 acquires real-time parameters of the coal instrument during operation, and transmits the real-time parameters to the control unit, specifically:
after the coal instrument works for a first fixed time, at least two real-time parameters are continuously acquired at intervals of a second fixed time, the average value or the weighted average value of the at least two real-time parameters is taken, and the average value or the weighted average value is transmitted to the control unit.
Further, the quasi-parameter threshold range is 0.75t standard and is not more than t threshold and is not more than 1.25t standard.
The embodiment of the invention provides a precision detection system for a coal instrument, which comprises a data acquisition unit and a control unit, wherein the control unit is connected with the data acquisition unit and is used for comparing real-time parameters acquired by the data acquisition unit with preset parameter thresholds, and the precision of the coal instrument is determined according to a comparison result.
Furthermore, the precision detection system further comprises an early warning unit, the early warning unit is connected with the control unit, and the control unit controls the working state of the early warning unit according to the precision of the coal instrument.
Further, the coal instrument is a calorimeter, an industrial analyzer, a sulfur determinator or an element analyzer. The calorimeter detects the calorific value of the coal; the industrial analyzer is used for detecting the contents of analyzed water, ash and volatile components in coal; the sulfur determinator is used for detecting the sulfur content in coal; the element analyzer is used for detecting the contents of carbon and hydrogen in the coal. The instrument is connected to the control unit through a network cable, standard coal parameters are recorded into the control unit, the instrument measures the standard coal, the measurement result is automatically uploaded to the control unit, the control unit automatically analyzes and compares the standard coal, and whether the instrument is qualified or not is automatically judged according to national standard GB/T213 calorific value repeated limitation regulation, repeated limitation regulation of the measurement result of moisture, ash and volatile in GB/T212 coal industrial analysis method, GB/T214 Coulomb titration method determination regulation of total sulfur precision in the coal, GB/T476 hydrocarbon determination precision regulation and the like. The control unit automatically saves the accuracy of the analysis instrument for each measurement result. After comparison, the early warning unit automatically alarms the laboratory staff to find the reason and then measures the reason again until the reason is qualified, and the instrument can test the coal sample to ensure the accuracy of the instrument.
Further, the early warning unit is a display, a warning light or a buzzer.
The invention provides a precision detection method for a coal instrument, which specifically comprises the following steps:
s1, the data acquisition unit acquires real-time parameters of the coal instrument during working and transmits the real-time parameters to the control unit;
and S2, comparing the real-time parameter with a preset standard parameter threshold value by the control unit to obtain the precision of the coal instrument.
Further, the method further comprises:
and S3, controlling the working state of the early warning unit according to the precision degree in the S2 by the control unit.
The invention provides a precision detection system for a coal instrument, which comprises a data acquisition unit and a control unit, wherein the control unit and the data acquisition unit compare real-time parameters acquired by the data acquisition unit with preset parameter thresholds, and determine the precision of the coal instrument according to a comparison result. The accuracy of the analysis instrument is determined each time by the control unit. The tester can conveniently find the reason and then measure the reason again until the reason is qualified, and the tester can test the coal sample to ensure the accuracy of the tester. The quality control level of the coal-fired analysis instrument can be effectively improved, the labor intensity can be reduced, the working efficiency can be improved, the standard coal management can be standardized, the stability of analysis equipment can be accurately mastered, the reliability of analysis results can be improved, and the overall management level of a laboratory can be improved. The accuracy of the produced coal sample result is known by tracking and controlling the precision of the instrument through the control unit, and the control on the coal quality detection result is realized from the aspect of instrument stability. The transparency of the acceptance link and the reliability of the acceptance result are increased, and accurate data are provided for coal acceptance settlement and blending and burning of coal as fired. The accuracy of the acceptance link is effectively improved, the coal consumption is indirectly reduced through the blending means, and the utilization rate and the safety of the unit are improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a flow chart of a method for detecting precision of a coal instrument according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a precision detection system for a coal instrument according to an embodiment of the present invention.
Reference numerals:
1. the system comprises a data acquisition unit, a 2 control unit and a 3 early warning unit.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The embodiment of the invention provides a method for detecting the precision of a coal instrument, which specifically comprises the following steps as shown in figure 1:
and S1, the data acquisition unit 1 acquires real-time parameters of the coal instrument during working and transmits the real-time parameters to the control unit 2.
And S2, comparing the real-time parameter with a preset standard parameter threshold value by the control unit 2 to obtain the precision of the coal instrument. The control unit may include: a receiver, a memory, an operator, a controller, a transmitter, etc., such as a computer, etc.
Wherein, the method also comprises:
and S3, the control unit 2 controls the working state of the early warning unit 3 according to the precision degree in the S2.
Wherein, control unit 2 in S2 compares the real-time parameter with a preset standard parameter threshold to obtain the precision of the coal instrument, which specifically is:
when the real-time parameter is within the standard parameter threshold range, the precision of the coal instrument meets the requirement; otherwise, the precision of the coal instrument can not meet the requirement.
Wherein, the control unit 2 in S3 controls the working state of the early warning unit 3 according to the precision in S2, specifically:
when the precision of the coal instrument meets the requirement, the early warning unit 3 does not work.
And when the precision of the coal instrument does not meet the requirement, the early warning unit 3 works.
Wherein, data acquisition unit 1 gathers the real-time parameter of coal instrument during operation in S1, and will the real-time parameter transmits to control unit 2, specifically is:
after the coal instrument works for a first fixed time, at least two real-time parameters are continuously acquired at intervals of a second fixed time, the average value or the weighted average value of the at least two real-time parameters is taken, and the average value or the weighted average value is transmitted to the control unit 2.
It should be noted that, after the first fixed time of the coal instrument operation is the time of starting the different end of the instrument operation, the operations in all aspects reach stable time, and the data of the coal instrument just started is unstable and cannot really feed back the performance of the instrument, so the data acquired stably in all aspects have higher authenticity.
Wherein the quasi-parameter threshold range is 0.75t standard and is not more than t threshold and is not more than 1.25t standard.
The specific range of the quasi-parameter threshold range can be adjusted correspondingly according to actual requirements to meet different actual requirements.
The embodiment of the invention provides a precision detection system for a coal instrument, which comprises a data acquisition unit 1 and a control unit 2, wherein the control unit 2 is connected with the data acquisition unit 1 and is used for comparing real-time parameters acquired by the data acquisition unit 1 with preset parameter thresholds, and the precision of the coal instrument is determined according to a comparison result.
The precision detection system further comprises an early warning unit 3, the early warning unit 3 is connected with the control unit 2, and the control unit 2 controls the working state of the early warning unit 3 according to the precision of a coal instrument.
Wherein the coal instrument is a calorimeter, an industrial analyzer, a sulfur determinator or an element analyzer. The calorimeter detects the calorific value of the coal; the industrial analyzer is used for detecting the contents of analyzed water, ash and volatile components in coal; the sulfur determinator is used for detecting the sulfur content in coal; the element analyzer is used for detecting the contents of carbon and hydrogen in the coal. The instrument is connected to the control unit 2 through a network cable, standard coal parameters are recorded into the control unit 2, the instrument measures the standard coal, the measurement result is automatically uploaded to the control unit 2, the control unit 2 automatically analyzes and compares the standard coal, and whether the instrument is qualified or not is automatically judged according to the national standard GB/T213 calorific value repeated limitation regulation, the repeated limitation regulation of the measurement result of moisture, ash and volatile in the GB/T212 coal industrial analysis method, the total sulfur precision measurement regulation in the GB/T214 Coulomb titration method measurement coal, the GB/T476 hydrocarbon measurement precision regulation and the like. The control unit 2 automatically saves the accuracy of the analysis instrument for each measurement result. After comparison, the early warning unit 3 automatically alarms the laboratory staff to find the reason and then measures the reason again until the reason is qualified, and the instrument can test the coal sample to ensure the accuracy of the instrument.
Wherein, the early warning unit 3 is a display, a warning light or a buzzer.
The display can also control the quality control curve graph of the display instrument in a period of continuous time through the control of the control unit 2 to achieve the understanding of the accuracy of the coal sample production result, and control of the coal quality detection result is achieved from the aspect of instrument stability.
The early warning unit 3 can remind people through a plurality of different modes for a display, a warning lamp or a buzzer.
In summary, the invention provides a method for detecting precision of a coal instrument, which specifically comprises the following steps:
s1, the data acquisition unit acquires real-time parameters of the coal instrument during working and transmits the real-time parameters to the control unit;
and S2, comparing the real-time parameter with a preset standard parameter threshold value by the control unit to obtain the precision of the coal instrument.
Further, the method further comprises:
and S3, controlling the working state of the early warning unit according to the precision degree in the S2 by the control unit.
The invention provides a precision detection system for a coal instrument, which comprises a data acquisition unit and a control unit, wherein the control unit and the data acquisition unit compare real-time parameters acquired by the data acquisition unit with preset parameter thresholds, and determine the precision of the coal instrument according to a comparison result. The accuracy of the analysis instrument is determined each time by the control unit. The tester can conveniently find the reason and then measure the reason again until the reason is qualified, and the tester can test the coal sample to ensure the accuracy of the tester. The quality control level of the coal-fired analysis instrument can be effectively improved, the labor intensity can be reduced, the working efficiency can be improved, the standard coal management can be standardized, the stability of analysis equipment can be accurately mastered, the reliability of analysis results can be improved, and the overall management level of a laboratory can be improved. The accuracy of the produced coal sample result is known by tracking and controlling the precision of the instrument through the control unit, and the control on the coal quality detection result is realized from the aspect of instrument stability. The transparency of the acceptance link and the reliability of the acceptance result are increased, and accurate data are provided for coal acceptance settlement and blending and burning of coal as fired. The accuracy of the acceptance link is effectively improved, the coal consumption is indirectly reduced through the blending means, and the utilization rate and the safety of the unit are improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The precision detection method for the coal instrument is characterized by comprising the following steps:
s1, the data acquisition unit (1) acquires real-time parameters of the coal instrument during working and transmits the real-time parameters to the control unit (2);
and S2, comparing the real-time parameter with a preset standard parameter threshold value by the control unit (2) to obtain the precision of the coal instrument.
2. The method for detecting precision of a coal instrument according to claim 1, wherein the method further comprises:
s3, the control unit (2) controls the working state of the early warning unit (3) according to the precision degree in the S2.
3. The method for detecting precision of a coal instrument according to claim 2, wherein the control unit (2) in S2 compares the real-time parameter with a preset standard parameter threshold to obtain the precision of the coal instrument, specifically:
when the real-time parameter is within the standard parameter threshold range, the precision of the coal instrument meets the requirement; otherwise, the precision of the coal instrument can not meet the requirement.
4. The precision detection method for coal instruments according to claim 3, characterized in that the control unit (2) in S3 controls the working state of the early warning unit (3) according to the precision in S2, specifically:
when the precision of the coal instrument meets the requirement, the early warning unit (3) does not work;
and when the precision of the coal instrument does not meet the requirement, the early warning unit (3) works.
5. The precision detection method for a coal instrument according to claim 1, wherein the data acquisition unit (1) in S1 acquires real-time parameters of the coal instrument during operation and transmits the real-time parameters to the control unit (2), specifically:
after the coal instrument works for a first fixed time, at least two real-time parameters are continuously acquired at intervals of a second fixed time, the average value or the weighted average value of the at least two real-time parameters is taken, and the average value or the weighted average value is transmitted to the control unit (2).
6. The method as claimed in claim 3, wherein the threshold value of the quasi-parameter is 0.75tStandard of merit≤tThreshold value≤1.25tStandard of merit。
7. The precision detection system for the coal instrument is characterized by comprising a data acquisition unit (1) and a control unit (2), wherein the control unit (2) is connected with the data acquisition unit (1) and used for comparing real-time parameters acquired by the data acquisition unit (1) with preset parameter thresholds, and the precision of the coal instrument is determined according to a comparison result.
8. The precision detection system for the coal instrument is characterized by further comprising an early warning unit (3), wherein the early warning unit (3) is connected with the control unit (2), and the control unit (2) controls the working state of the early warning unit (3) according to the precision of the coal instrument.
9. The system for detecting the precision of a coal instrument according to claim 7 or 8, wherein the coal instrument is a calorimeter, an industrial analyzer, a sulfur analyzer, or an elemental analyzer.
10. The precision detection system for the coal instrument is characterized in that the early warning unit (3) is a display, a warning light or a buzzer.
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2021
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