Coal gasification plant performance evaluation method and system

Abstract

The present application relates to a kind of coal gasification plant performance evaluation method and system, the coal gasification plant performance evaluation method is by collecting coal gasification plant operating data, and pre-processing is carried out, establishes standard database, and based on the data in this standard database, constantly process obtains the performance evaluation basic index, performance evaluation comprehensive index and value quantization index of the coal gasification plant, then again using these indexes to do multidimensional performance evaluation to the coal gasification plant, not only automatically realizes to the coal gasification plant real-time collection, and greatly reduces the time-consuming problem of the collection statistics for various operating data, adapts the digital construction requirement of coal chemical industry enterprise, to more low-cost way through multidimensional index realizes the performance real-time evaluation and management to the coal gasification plant, improves the device management efficiency.

Description

Technical Field

[0001] This invention relates to the field of coal gasification equipment, and more particularly to a method and system for evaluating the performance of coal gasification equipment. Background Technology

[0002] Coal gasification units are the leading components of coal chemical plants, accounting for the largest proportion of the total energy consumption of the entire plant. Performance evaluation and benchmarking management of these units are crucial for guiding energy and cost reduction. Currently, there are several methods for evaluating coal gasification units: One method uses technical indicators and parameters such as specific oxygen consumption and specific coal consumption. However, this method does not consider factors such as unit load, operating rate, and cost, and is significantly affected by coal quality, process, and target products, making long-term performance evaluation and benchmarking management difficult. Another method involves developing a mechanism model for the coal gasification unit to conduct process simulation analysis and evaluation. However, due to the complexity of the coal gasification mechanism, model development and calibration are time-consuming, and current mechanism models are based on steady-state data and numerous assumptions. These models suffer from large errors and poor robustness under conditions of significant fluctuations in coal quality and unit load.

[0003] Chinese invention patent application CN110441491A discloses a coal gasification evaluation device and method. The coal gasification evaluation device includes a feeding system, a gasification system, a washing and desulfurization system, a heating and induced draft system, a quench water system, and a slag water treatment system. The coal gasification evaluation method includes: (I) Gasifier preheating: Ignite the gasifier, shut off the washing and desulfurization system, and start the heating and induced draft system; after the preheating is completed, shut off the heating and induced draft system and start the washing and desulfurization system; (II) Feeding and gasification: Feed pulverized coal into the No. 1 pulverized coal feed silo and / or the No. 2 pulverized coal feed silo via the coal bunker, or feed it into the pulverized coal slurry system, and pressurize it to establish pulverized coal circulation or coal-water slurry circulation. The pulverized coal or coal-water slurry is measured by the flow detection system and transported to the gasifier for gasification; (III) Gasification index evaluation: After gasification in the gasifier, the gas produced passes through the washing tower and the desulfurization tower, and the gas composition after passing through the washing tower and the desulfurization tower is analyzed by the gas detection system. This scheme achieves the evaluation of coal gasification indexes in a low-cost manner, reducing the huge engineering risks caused by the selection of gasification technology.

[0004] However, the coal gasification evaluation scheme disclosed in the aforementioned invention patent application CN110441491A has shortcomings: the coal gasification evaluation scheme focuses on evaluating the gasification performance of coal through experimental devices, but due to the small processing capacity of the experimental devices, their flow field and temperature field are quite different from those of industrial devices. The coal gasification evaluation results obtained based on the experimental devices cannot be completely consistent with those of industrial devices, and the coal gasification evaluation scheme cannot evaluate and manage the long-term operating status of the coal gasification device. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a performance evaluation method for coal gasification devices in light of the above-mentioned prior art.

[0006] The second technical problem to be solved by the present invention is to provide a coal gasification device performance evaluation system that implements the above-mentioned coal gasification device performance evaluation method.

[0007] The technical solution adopted by this invention to solve the first technical problem is: a performance evaluation method for coal gasification equipment, characterized by comprising the following steps:

[0008] Step S1: Collect operating data of the coal gasification unit, preprocess the operating data, and establish a standard database; wherein, the standard database data includes process parameters obtained from the real-time database, key material analysis data obtained from the LIMS system, price data obtained from the ERP system, energy consumption data obtained from the energy management system, unit alarm information obtained from the alarm system, and indicator data obtained from the production management system.

[0009] Step S2: Based on the data in the standard database, calculate and obtain the set of basic performance evaluation indicators for the coal gasification unit; the set of basic performance evaluation indicators includes production plan execution rate, unit operation rate, pure hydrogen production, raw material consumption per unit product, comprehensive energy consumption per unit product, number of unplanned shutdowns, and long-cycle operation time.

[0010] Step S3: Based on the obtained set of basic performance evaluation indicators, a weighted comprehensive performance evaluation index for the coal gasification unit is calculated.

[0011] Step S4: Based on the data in the standard database, calculate the actual value of the comprehensive energy consumption per unit product and the actual value of the raw material consumption per unit product of the coal gasification unit.

[0012] Step S5: Based on the obtained unit product comprehensive energy consumption index value and unit product raw material consumption index value of the coal gasification unit, calculate the unit product comprehensive energy consumption benchmark difference value and unit product raw material consumption benchmark difference value of the coal gasification unit respectively.

[0013] Step S6: Based on the data in the standard database, calculate the actual pure hydrogen production, raw material consumption, standard oil price and raw material price of the coal gasification unit, and then calculate the value quantification index of the coal gasification unit based on the obtained unit product comprehensive energy consumption and unit product raw material consumption.

[0014] Step S7: The coal gasification unit performance evaluation management system performs a multi-dimensional performance evaluation of the coal gasification unit based on the obtained basic performance evaluation indicators, comprehensive performance evaluation indicators, and value quantification indicators.

[0015] Improvedly, in the performance evaluation method for the coal gasification unit, in step S2:

[0016] The production plan execution rate index = (actual output of coal gasification unit - planned output of unit) / planned output of unit * 100%;

[0017] The device operating rate index = (theoretical operating time - cumulative downtime) / theoretical operating time * 100%;

[0018] The pure hydrogen production = (∑B w ·γ w ), w = 1, 2, 3; where B w γ represents the output of the w-th product of the coal gasification unit per unit time. w The yield of the w-th product is expressed as the pure hydrogen coefficient, where the first product is hydrogen, the second product is carbon-based syngas, and the third product is carbon monoxide.

[0019] The raw material consumption per unit product index = (total coal raw material consumption + total coke raw material consumption) / pure hydrogen production;

[0020] The unit product comprehensive energy consumption index = (∑M i ·R i ) / Q; i = 1, 2, 3, 4; where M i R represents the physical quantity of the i-th type of object consumed by the coal gasification unit per unit time. i is the energy conversion factor corresponding to the i-th type of object, and Q is the pure hydrogen production rate of the output of hydrogen, carbonyl synthesis gas and carbon monoxide per unit time; the first type of object is raw material, the second type of object is fuel, the third type of object is utility, and the fourth type of object is power.

[0021] In a further improvement, in the performance evaluation method for the coal gasification unit, in step S3, the comprehensive performance evaluation index is labeled as P:

[0022]

[0023] Among them, Aj This refers to the actual score corresponding to the j-th target indicator within the preset target indicator set A. The preset target indicator set A includes six indicators: production plan execution rate, number of unplanned shutdowns, equipment operating rate, long cycle time, comprehensive energy consumption per unit product, and raw material consumption per unit product. ω j This represents the weight value corresponding to the j-th target indicator.

[0024] Improvedly, in the performance evaluation method for the coal gasification unit, in step S5, the benchmark difference of the comprehensive energy consumption per unit product = theoretical value of comprehensive energy consumption per unit product - actual value of comprehensive energy consumption per unit product; the benchmark difference of the raw material consumption per unit product = theoretical value of raw material consumption per unit product - actual value of raw material consumption per unit product.

[0025] Furthermore, in the performance evaluation method for the coal gasification unit, the value quantification index of the coal gasification unit is δ:

[0026]

[0027] Where M represents the total number of fluctuations in the benchmark crude oil price during the evaluation period, K represents the total number of fluctuations in the raw material price during the evaluation period, and N represents the total number of fluctuations in the raw material price during the evaluation period. m Let C be the benchmark difference in comprehensive energy consumption per unit of product corresponding to the m-th fluctuation in the standard oil price. m Φ represents the cumulative actual pure hydrogen production corresponding to the m-th fluctuation in the standard crude oil price. m Let R be the benchmark crude oil price corresponding to the m-th fluctuation in benchmark crude oil price. k Let E be the benchmark difference in raw material consumption per unit of product corresponding to the k-th raw material price fluctuation. k Let be the cumulative actual pure hydrogen production corresponding to the k-th raw material price fluctuation. Let be the raw material price corresponding to the k-th raw material price fluctuation.

[0028] Furthermore, in the performance evaluation method for the coal gasification unit, when the value quantification index δ is positive, the performance of the coal gasification unit is evaluated as meeting the standards.

[0029] Furthermore, in the performance evaluation method for the coal gasification unit, after completing step S7, the method further includes:

[0030] Based on the obtained basic performance evaluation indicators, comprehensive performance evaluation indicators, and value quantification indicators of the coal gasification unit, the calibration report and performance evaluation report of the unit are automatically generated. The contents of either the calibration report or the performance evaluation report include the analysis of equipment (or units) with high or low efficiency parameters, the results and conclusions of the calibration and performance evaluation of the coal gasification unit.

[0031] The technical solution adopted by this invention to solve the second technical problem is: a coal gasification unit performance evaluation system, which implements the aforementioned coal gasification unit performance evaluation method, characterized in that it includes:

[0032] The data acquisition module collects operating data from the coal gasification unit. This operating data includes process parameters obtained from the real-time database, key material analysis data obtained from the LIMS system, price data obtained from the ERP system, energy consumption data obtained from the energy management system, unit alarm information obtained from the alarm system, and indicator data obtained from the production management system.

[0033] The data processing module preprocesses the runtime data collected by the data acquisition module.

[0034] The data storage module establishes a standard database based on the data preprocessed by the data processing module.

[0035] The performance evaluation module calculates a set of basic performance evaluation indicators for the coal gasification unit based on data from a standard database. It then calculates a comprehensive performance evaluation indicator for the unit using a weighted average of these basic indicators. Finally, it performs a multi-dimensional performance evaluation of the coal gasification unit based on these basic, comprehensive, and value-quantitative indicators. The basic performance evaluation indicator set includes indicators such as production plan execution rate, unit operating rate, pure hydrogen production, raw material consumption per unit product, comprehensive energy consumption per unit product, number of unplanned shutdowns, and long-cycle operating time.

[0036] The data processing module also calculates the actual value of the unit product comprehensive energy consumption and the actual value of the unit product raw material consumption of the coal gasification unit based on the data in the standard database; and, based on the obtained unit product comprehensive energy consumption index and unit product raw material consumption index of the coal gasification unit, calculates the unit product comprehensive energy consumption benchmark difference and the unit product raw material consumption benchmark difference of the coal gasification unit, and then calculates the value quantification index of the coal gasification unit based on the obtained unit product comprehensive energy consumption benchmark difference and unit product raw material consumption benchmark difference.

[0037] Compared with existing technologies, the advantages of this invention are as follows: The coal gasification unit performance evaluation method in this invention establishes a standard database based on pre-processed coal gasification unit operating data, and continuously processes the data in this standard database to obtain basic performance evaluation indicators, comprehensive performance evaluation indicators, and value quantification indicators for the coal gasification unit. Then, these indicators are used to conduct multi-dimensional performance evaluation of the coal gasification unit. This not only automatically realizes real-time data collection of the coal gasification unit, but also greatly reduces the time-consuming problem of collecting and statistically analyzing various types of operating data. It adapts to the digital construction requirements of coal chemical enterprises, and realizes real-time performance evaluation and management of coal gasification units through multi-dimensional indicators in a more cost-effective manner, thereby improving the efficiency of unit management.

[0038] Furthermore, the performance evaluation scheme for the coal gasification unit in this invention allows for flexible selection of the evaluation cycle. By acquiring real-time operating data and performing data preprocessing, various performance evaluation indicators of the coal gasification unit are calculated, and calibration and performance evaluation reports are automatically generated. The reports include analysis of equipment (or units) with high or low efficiency parameters, the results and conclusions of coal gasification unit calibration and performance evaluation, etc. Compared with existing manual calibration and performance evaluation, this significantly reduces the workload and saves time (including the time for acquiring operating data, processing data, calculating evaluation indicators, and compiling and reviewing reports), while ensuring the accuracy and objectivity of the evaluation reports. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the performance evaluation method for a coal gasification unit in an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the performance evaluation system for a coal gasification device in an embodiment of the present invention. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0042] This embodiment provides a method for evaluating the performance of a coal gasification unit. Specifically, see [link to relevant documentation]. Figure 1 As shown, the performance evaluation method for the coal gasification unit in this embodiment includes the following steps S1 to S7:

[0043] Step S1: Collect operating data of the coal gasification unit, preprocess the operating data, and establish a standard database; wherein, the standard database data includes process parameters obtained from the real-time database, key material analysis data obtained from the LIMS system, price data obtained from the ERP system, energy consumption data obtained from the energy management system, unit alarm information obtained from the alarm system, and indicator data obtained from the production management system.

[0044] Preprocessing of operational data includes measures such as material balance processing, deletion of invalid data, interpolation to fit and fill missing values, data smoothing to eliminate noise and outliers, and soft correction of key instrument data using models. Interpolation methods can be any of nearest neighbor interpolation, linear interpolation, or cubic spline interpolation. The smoothing method for raw data uses Fast Fourier Transform (FFT) smoothing technology to eliminate high-frequency noise and outliers. Soft correction of key instruments can be any of mathematical models, rigorous mechanistic models, or data-rigorous mechanistic dual-drive models.

[0045] Step S2: Based on the data in the standard database, calculate the set of basic performance evaluation indicators for the coal gasification unit; the set of basic performance evaluation indicators includes production plan execution rate, unit operation rate, pure hydrogen production, raw material consumption per unit product, comprehensive energy consumption per unit product, number of unplanned shutdowns, and long-cycle operation time.

[0046] Specifically, in this embodiment, the calculation methods for each relevant indicator are as follows:

[0047] Production plan execution rate index = (actual output of coal gasification unit - planned output of unit) / planned output of unit * 100%;

[0048] The unit operating rate index = (theoretical operating time - cumulative unit downtime) / theoretical operating time * 100%;

[0049] Pure hydrogen production = (∑B w ·γ w ), w = 1, 2, 3; where B w γ represents the output of the w-th product of the coal gasification unit per unit time. w The yield of the w-th product is expressed as the pure hydrogen coefficient, where the first product is hydrogen, the second product is carbon-based syngas, and the third product is carbon monoxide.

[0050] Unit product raw material consumption index = (total coal raw material consumption + total coke raw material consumption) / pure hydrogen production;

[0051] Unit product comprehensive energy consumption index = (∑M i ·R i ) / Q; i = 1, 2, 3, 4; where M i R represents the physical quantity of the i-th type of object consumed by the coal gasification unit per unit time. i is the energy conversion factor corresponding to the i-th type of object, and Q is the pure hydrogen production rate of the output of hydrogen, carbonyl synthesis gas and carbon monoxide per unit time; the first type of object is raw material, the second type of object is fuel, the third type of object is utility, and the fourth type of object is power.

[0052] Step S3: Based on the obtained set of basic performance evaluation indicators, a weighted comprehensive performance evaluation index for the coal gasification unit is calculated; wherein, in this embodiment, the comprehensive performance evaluation index is denoted as P:

[0053]

[0054] Among them, A j This refers to the actual score corresponding to the j-th target indicator within the preset target indicator set A. The preset target indicator set A includes six indicators: production plan execution rate, number of unplanned shutdowns, equipment operating rate, long cycle time, comprehensive energy consumption per unit product, and raw material consumption per unit product. ω j Let be the weight value corresponding to the j-th target indicator; where the magnitude of the weight value is positively correlated with the impact of the target indicator on the coal gasification unit.

[0055] For example, A1 is the actual score corresponding to the first target indicator in the preset target indicator set A - production execution rate, and ω1 is the weight value corresponding to this production execution rate; A2 is the actual score corresponding to the second target indicator in the preset target indicator set A - number of unplanned shutdowns, and ω2 is the weight value corresponding to this number of unplanned shutdowns; and so on for other preset target indicators.

[0056] Step S4: Based on the data in the standard database, calculate the actual value of the comprehensive energy consumption per unit product and the actual value of the raw material consumption per unit product of the coal gasification unit. Here, the actual value of the comprehensive energy consumption per unit product and the actual value of the raw material consumption per unit product of the coal gasification unit can be obtained by conventional technical means in this field, and will not be elaborated here.

[0057] Step S5: Based on the obtained unit product comprehensive energy consumption index and unit product raw material consumption index of the coal gasification unit, calculate the benchmark difference of unit product comprehensive energy consumption and the benchmark difference of unit product raw material consumption of the coal gasification unit respectively; wherein, in this embodiment, the benchmark difference of unit product comprehensive energy consumption = unit product comprehensive energy consumption index value - unit product comprehensive energy consumption actual value; the benchmark difference of unit product raw material consumption = unit product raw material consumption index value - unit product raw material consumption actual value.

[0058] Step S6: Based on the data in the standard database, calculate the actual pure hydrogen production, raw material consumption, standard oil price, and raw material price of the coal gasification unit. Then, based on the benchmark difference of the comprehensive energy consumption per unit product and the benchmark difference of the raw material consumption per unit product, calculate the value quantification index of the coal gasification unit. Specifically, in this embodiment, the value quantification index of the coal gasification unit is denoted as δ, and the calculation method of the value quantification index δ is as follows:

[0059]

[0060] Where M represents the total number of fluctuations in the benchmark crude oil price during the evaluation period, K represents the total number of fluctuations in the raw material price during the evaluation period, and N represents the total number of fluctuations in the raw material price during the evaluation period. m Let C be the benchmark difference in comprehensive energy consumption per unit of product corresponding to the m-th fluctuation in the standard oil price. m Φ represents the cumulative actual pure hydrogen production corresponding to the m-th fluctuation in the standard crude oil price. m Let R be the benchmark crude oil price corresponding to the m-th fluctuation in benchmark crude oil price. k E represents the benchmark difference in raw material consumption per unit of product corresponding to the k-th raw material price fluctuation. k Let be the cumulative actual pure hydrogen production corresponding to the k-th raw material price fluctuation. Let be the raw material price corresponding to the k-th raw material price fluctuation;

[0061] For example, assuming that during an evaluation period for a coal gasification unit, the standard crude oil price fluctuates a total of 5 times (M=5) and the feedstock price fluctuates a total of 7 times (N=7), then N1 is the benchmark difference in unit product comprehensive energy consumption corresponding to the first standard crude oil price fluctuation, C1 is the cumulative actual pure hydrogen production corresponding to the first standard crude oil price fluctuation, Φ1 is the standard crude oil price corresponding to the first standard crude oil price fluctuation, R1 is the benchmark difference in unit product feedstock consumption corresponding to the first feedstock price fluctuation, and E1 is the cumulative actual pure hydrogen production corresponding to the first feedstock price fluctuation. This refers to the raw material price corresponding to the first raw material price fluctuation; the others follow the same pattern, which will not be elaborated here.

[0062] Step S7: The gasification unit performance evaluation management system performs a multi-dimensional performance evaluation of the gasification unit based on the obtained basic performance evaluation indicators, comprehensive performance evaluation indicators, and value quantification indicators. For example, if the gasification unit performance evaluation management system determines that the obtained value quantification index δ of the gasification unit is positive, then the performance of the gasification unit is evaluated as meeting the standards. Of course, the gasification unit performance evaluation management system can not only evaluate the corresponding indicators based on the obtained basic performance evaluation indicators, comprehensive performance evaluation indicators, and value quantification indicators of the gasification unit separately, but also use a weighted summation method to evaluate the overall performance of the gasification unit.

[0063] In addition, this embodiment also provides a coal gasification unit performance evaluation system. This coal gasification unit performance evaluation system can implement the aforementioned coal gasification unit performance evaluation method. Specifically, see... Figure 2 As shown, the performance evaluation system for the coal gasification unit in this embodiment includes:

[0064] Data acquisition module 1 collects operating data of the coal gasification unit; the operating data of the coal gasification unit includes process parameters obtained from the real-time database, key material analysis data obtained from the LIMS system, price data obtained from the ERP system, energy consumption data obtained from the energy management system, unit alarm information obtained from the alarm system, and indicator data obtained from the production management system.

[0065] Data processing module 2 preprocesses the runtime data collected by the data acquisition module;

[0066] Data storage module 3 establishes a standard database based on the data preprocessed by the data processing module;

[0067] Performance evaluation module 4 calculates a set of basic performance evaluation indicators for the coal gasification unit based on data in the standard database, calculates a comprehensive performance evaluation indicator for the coal gasification unit based on the weighted calculation of the obtained basic performance evaluation indicator set, and conducts a multi-dimensional performance evaluation of the coal gasification unit based on the obtained basic performance evaluation indicator, comprehensive performance evaluation indicator and value quantification indicator.

[0068] The data processing module 2 also calculates the actual value of the unit product comprehensive energy consumption and the actual value of the unit product raw material consumption of the coal gasification unit based on the data in the standard database; and, based on the obtained unit product comprehensive energy consumption index value and unit product raw material consumption index value of the coal gasification unit, calculates the unit product comprehensive energy consumption benchmark difference value and the unit product raw material consumption benchmark difference value of the coal gasification unit, and then calculates the value quantification index of the coal gasification unit based on the obtained unit product comprehensive energy consumption benchmark difference value and unit product raw material consumption benchmark difference value.

[0069] Although preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for evaluating the performance of a coal gasification plant, characterized by, Comprise the following steps: Step S1, collect coal gasification device operation data, and pretreat operation data, establish standard database; wherein, standard database data include real-time database obtained process parameters, LIMS system obtained key material analysis data, ERP system obtained price data, energy management system obtained energy consumption data, alarm system obtained device alarm information and production management system obtained index data; and, the pretreatment of operation data includes material balance processing, deleting invalid data, using interpolation method to interpolate missing value fitting, using data smoothing method to eliminate noise signal and abnormal value and using model to soft correct key instrument data; Step S2, based on the data in the standard database, calculate the performance evaluation basic index set for the coal gasification device; wherein, the performance evaluation basic index set includes production plan execution rate index, device operation rate index, net hydrogen production index, unit product raw material consumption index, unit product comprehensive energy consumption index, non-planned shutdown times and long-period operation time index; Step S3, based on the obtained performance evaluation basic index set, weighted calculation obtains the performance evaluation comprehensive index of the coal gasification device; wherein, the performance evaluation comprehensive index is marked as P: wherein A j is the actual score corresponding to the jth target indicator in the preset target indicator set A, the indicators in the preset target indicator set A include six indicators, i.e., production plan execution rate, unplanned shutdown times, device operation rate, long-period operation time, unit product comprehensive energy consumption, and unit product raw material consumption, ω j is the weight value corresponding to the jth target indicator. Step S4, based on the data in the standard database data, respectively calculate the actual value of unit product comprehensive energy consumption and unit product raw material consumption of the coal gasification device; Step S5, according to the obtained unit product comprehensive energy consumption index value and unit product raw material consumption index value of the coal gasification device, respectively calculate the unit product comprehensive energy consumption target difference and unit product raw material consumption target difference of the coal gasification device; Step S6, based on the data in the standard database data, respectively calculate the actual net hydrogen production, raw material consumption, standard oil price and raw material price data of the coal gasification device, and based on the obtained unit product comprehensive energy consumption target difference and unit product raw material consumption target difference, calculate the value quantization index of the coal gasification device; wherein, the value quantization index of the coal gasification device is marked as δ: Wherein, M is the total number of marker oil price fluctuations in the evaluation period, K is the total number of raw material price fluctuations in the evaluation period, N m is the unit product comprehensive energy consumption corresponding to the mth marker oil price fluctuation, C m is the cumulative actual net hydrogen production corresponding to the mth marker oil price fluctuation, Φ m is the marker oil price corresponding to the mth marker oil price fluctuation, R k is the unit product raw material consumption corresponding to the kth raw material price fluctuation, E k is the cumulative actual net hydrogen production corresponding to the kth raw material price fluctuation, is the raw material price corresponding to the kth raw material price fluctuation; Step S7, the coal gasification device performance evaluation management system based on the obtained performance evaluation basic index, performance evaluation comprehensive index and value quantization index of the coal gasification device, multi-dimensional performance evaluation is made to the coal gasification device; And, after executing step S7, it still comprises: Based on the obtained performance evaluation basic index, performance evaluation comprehensive index and value quantization index of the coal gasification device, automatically generate device calibration report and performance evaluation report; wherein, any report content of calibration report and performance evaluation report includes analysis of equipment unit with high or low efficiency parameter, results and conclusions of coal gasification device calibration and performance evaluation.

2. The coal gasification plant performance evaluation method according to claim 1, characterized by, In step S2: The production plan execution rate index=(coal gasification device actual output-device production plan output) / device production plan output*100%; The device operation rate index=(theoretical operation time-device cumulative shutdown time) / theoretical operation time*100%; The purified hydrogen production = (∑B w · γ w ), w = 1, 2, 3; wherein, B w is the wth product production of the coal gasification device per unit time, γ w is the production coefficient of the purified hydrogen corresponding to the wth product, the 1st product is hydrogen, the 2nd product is carbon-based synthesis gas, and the 3rd product is carbon monoxide; The unit product raw material consumption index=(coal raw material consumption total amount+coke raw material consumption total amount) / net hydrogen production; The unit product comprehensive energy consumption index = (∑M i ·R i ) / Q; i = 1, 2, 3, 4; wherein, M i is the physical quantity of the i-th object consumed by the coal gasification device per unit time, R i is the energy conversion coefficient corresponding to the i-th object, and Q is the pure hydrogen production yield per unit time; the first object is raw material, the second object is fuel, the third object is utility, and the fourth object is power.

3. The coal gasification plant performance evaluation method according to claim 1, characterized by, In step S5, the unit product comprehensive energy consumption to standard deviation value = unit product comprehensive energy consumption index value - unit product comprehensive energy consumption actual value; the unit product raw material consumption to standard deviation value = unit product raw material consumption index value - unit product raw material consumption actual value.

4. The coal gasification plant performance assessment method according to claim 1, characterized by, When the value quantification index is a positive number, it is determined that the performance of the coal gasification device meets the standard.

5. A coal gasification plant performance evaluation system which realizes the coal gasification plant performance evaluation method according to any one of claims 1 to 4, characterized by The method comprises the following steps: The data acquisition module acquires the operation data of the coal gasification device; wherein, the operation data of the coal gasification device comprises process parameters obtained from a real-time database, key material analysis data obtained from a LIMS system, price data obtained from an ERP system, energy consumption data obtained from an energy management system, device alarm information obtained from an alarm system, and index data obtained from a production management system; The data processing module pre-processes the operation data acquired by the data acquisition module; The data storage module establishes a standard database based on the pre-processed data of the data processing module; The performance evaluation module calculates a basic index set of performance evaluation for the coal gasification device based on the data in the standard database, calculates a comprehensive index of performance evaluation for the coal gasification device based on the obtained basic index set of performance evaluation, and performs multi-dimensional performance evaluation on the coal gasification device based on the basic index of performance evaluation, the comprehensive index of performance evaluation, and the value quantification index of the coal gasification device; wherein, the basic index set of performance evaluation comprises a production plan execution rate index, a device operation rate index, a net hydrogen yield index, a unit product raw material consumption index, a unit product comprehensive energy consumption index, a number of unplanned shutdowns, and a long-period operation time index. The data processing module further calculates the actual value of the unit product comprehensive energy consumption and the actual value of the unit product raw material consumption of the coal gasification device based on the data in the standard database; and calculates the unit product comprehensive energy consumption to standard deviation value and the unit product raw material consumption to standard deviation value of the coal gasification device based on the obtained unit product comprehensive energy consumption index and unit product raw material consumption index of the coal gasification device, and further calculates the value quantification index of the coal gasification device based on the obtained unit product comprehensive energy consumption to standard deviation value and unit product raw material consumption to standard deviation value.

6. The coal gasification plant performance assessment system according to claim 5, wherein The performance evaluation module automatically generates a calibration report and a performance evaluation report of the device based on the basic index of performance evaluation, the comprehensive index of performance evaluation, and the value quantification index of the coal gasification device; wherein, any report content of the calibration report and the performance evaluation report comprises an analysis of equipment units with high or low efficiency parameters, results and conclusions of the calibration and performance evaluation of the coal gasification device.

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