Coal gasification unit online calibration method and system

Abstract

The present invention relates to an online calibration method and system for a coal gasification device. A calibration model of a coal gasification device is constructed in advance, and calibration data required for calibrating the coal gasification device is obtained. Finally, the obtained calibration data is input into the calibration model of the coal gasification device to obtain a calibration result of the coal gasification device, and a calibration report for online processing is automatically generated, thereby reducing the time cost of manual calibration, improving the calibration efficiency and accuracy of the coal gasification device, and reducing the preparation and verification time of the calibration report of the coal gasification device.

Description

Technical Field

[0001] The present invention relates to the field of coal gasification devices, and in particular to an online calibration method and system for a coal gasification device. Background Art

[0002] The coal gasification unit is the leader of coal chemical plants. In order to test whether the various operating indicators of the coal gasification unit can meet the design conditions when it is in full load and normal production, or when it is necessary to assess the unit's capacity, it is usually necessary to conduct a comprehensive calibration of the coal gasification unit's production capacity, process and control indicators, environmental protection indicators, product quality, equipment performance, automatic control level, consumption quota and other indicators to see whether they can meet the design requirements. Based on the calibration results of the coal gasification unit, detailed basic data of the coal gasification unit under actual operating conditions can be obtained to understand the actual technical performance of the coal gasification unit.

[0003] At present, the calibration of coal gasification equipment mainly adopts manual calibration method, that is, calibration data is obtained manually from multiple data sources such as DCS system, MES system, LIMS system, etc., and filled into the relevant process parameter record table of coal gasification equipment, and then these calibration data are manually processed and analyzed to calculate various performance indicators of coal gasification equipment and obtain performance parameters such as material balance, heat balance and equipment efficiency, complete performance evaluation, and finally manually write and compile calibration report. This method has the problems of low calibration efficiency, high labor intensity of calibration work, difficulty in obtaining some data, large amount of data processing, and easy occurrence of human errors.

[0004] However, the existing manual calibration method for coal gasification equipment has shortcomings: as the calibration range of coal gasification equipment continues to increase, the workload of manual calibration work increases accordingly, and more manpower and time are required to complete the preparation of calibration reports, which greatly reduces the calibration efficiency of coal gasification equipment. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide an online calibration method for a coal gasification device which can complete the calibration intelligently and automatically in view of the above-mentioned prior art.

[0006] The second technical problem to be solved by the present invention is to provide an online calibration system for a coal gasification device for realizing the above-mentioned online calibration method for a coal gasification device.

[0007] The technical solution adopted by the present invention to solve the first technical problem is: an online calibration method for a coal gasification device, characterized in that it comprises the following steps:

[0008] Step 1, pre-constructing a calibration model of a coal gasification unit;

[0009] Step 2, obtaining calibration data required for calibrating the coal gasification device;

[0010] Step 3, inputting the obtained calibration data into the calibration model of the coal gasification device to obtain the calibration result of the coal gasification device;

[0011] Step 4: Based on the obtained calibration results of the coal gasification device, a calibration report of the coal gasification device for online processing is generated.

[0012] Further improved, in the coal gasification device online calibration method, the process of constructing the coal gasification device calibration model includes the following steps:

[0013] Step S1, collecting a set of performance parameters required for calibrating a coal gasification device; wherein the set of performance parameters includes production capacity, process parameters, product quality, equipment performance, energy consumption and material consumption of the coal gasification device;

[0014] Step S2, classifying the collected performance parameter sets based on data sources to form a measurable performance parameter set and a non-measurable performance parameter set;

[0015] Step S3, collecting data sources of performance parameters in the measurable performance parameter set to form a measurable performance parameter source mapping set;

[0016] Step S4, obtaining a measurable performance parameter calculation model based on the measurable performance parameter source mapping set and the corresponding performance indicator calculation formula;

[0017] Step S5, constructing a device mechanism model based on the device operation data, and obtaining performance parameters in the non-measurable performance parameter set;

[0018] Step S6, mapping the non-measurable performance parameters calculated using the mechanism model with the non-measurable performance parameters required by the calibration report to form a non-measurable performance parameter mapping set;

[0019] Step S7 encapsulates the measurable performance parameter source mapping set, the measurable performance parameter calculation model, the device mechanism model and the non-measurable performance parameter mapping set to obtain a coal gasification device calibration model.

[0020] Furthermore, in the coal gasification device online calibration method, the process of constructing the device mechanism model includes the following steps:

[0021] Step a1, collecting design data and operation data of the coal gasification device, and preprocessing the operation data to form a sample database;

[0022] Step a2, clustering the data in the sample database into operating conditions to form an operating condition data set;

[0023] Step a3: Based on the operating condition data set, process simulation technology is used to construct device mechanism models corresponding to different operating conditions.

[0024] Further improvement, in the coal gasification device online calibration method, the corresponding performance calibration of the coal gasification device is performed in the following manner:

[0025] When any obtained performance parameter value is greater than the preset performance parameter threshold corresponding to the performance parameter, the performance parameter value of the calibrated coal gasification device is out of standard; otherwise, the performance parameter value of the calibrated coal gasification device is not out of standard.

[0026] Optionally, in the coal gasification device online calibration method, the online processing is at least one processing operation of online browsing, editing, checking, exporting and saving.

[0027] The technical solution adopted by the present invention to solve the second technical problem is: an online calibration system for a coal gasification device, which implements the online calibration method for a coal gasification device, and is characterized in that the online calibration system for a coal gasification device comprises:

[0028] Data acquisition module, to obtain the calibration data required for calibrating the coal gasification device;

[0029] The calibration model of the coal gasification device obtains the calibration result of the coal gasification device based on the calibration data obtained by the data acquisition module.

[0030] Compared with the prior art, the advantages of the present invention are: the online calibration method of the coal gasification device in the present invention pre-builds a calibration model of the coal gasification device, and then obtains the calibration data required for calibrating the coal gasification device, and finally inputs the obtained calibration data into the calibration model of the coal gasification device to obtain the calibration result of the coal gasification device, and automatically generates a calibration report for online processing, which reduces the time cost of manual calibration, improves the calibration efficiency and accuracy of the coal gasification device, and reduces the preparation and review time of the calibration report of the coal gasification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the process of online calibration method of coal gasification device in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the accompanying drawings.

[0033] This embodiment provides an online calibration method for a coal gasification device. Figure 1 As shown, the coal gasification device online calibration method of this embodiment includes the following steps:

[0034] Step 1: pre-build a calibration model of a coal gasification device; wherein, in this embodiment, the construction process of the calibration model of a coal gasification device includes the following steps S1 to S7:

[0035] Step S1, collecting a set of performance parameters required for calibrating a coal gasification device; wherein the set of performance parameters includes production capacity, process parameters, product quality, equipment performance, energy consumption and material consumption of the coal gasification device;

[0036] Step S2, classifying the collected performance parameter sets based on data sources to form a measurable performance parameter set and a non-measurable performance parameter set;

[0037] Step S3, collecting data sources of performance parameters in the measurable performance parameter set to form a measurable performance parameter source mapping set;

[0038] Step S4, obtaining a measurable performance parameter calculation model based on the measurable performance parameter source mapping set and the corresponding performance indicator calculation formula;

[0039] For example, for the performance indicator of the carbon conversion rate of the coal gasification unit, the performance indicator calculation formula is as follows:

[0040]

[0041] Step S5, constructing a device mechanism model based on the device operation data to obtain performance parameters in the non-measurable performance parameter set; wherein the process of constructing the device mechanism model includes the following steps a1 to a3:

[0042] Step a1, collecting design data and operation data of the coal gasification device, and preprocessing the operation data to form a sample database;

[0043] Step a2, clustering the data in the sample database into operating conditions to form an operating condition data set;

[0044] Step a3, based on the operating condition data set, using process simulation technology to respectively construct device mechanism models corresponding to different operating conditions; wherein, using process simulation technology to construct device mechanism models belongs to the prior art and will not be described in detail here;

[0045] Step S6, mapping the non-measurable performance parameters calculated using the mechanism model with the non-measurable performance parameters required by the calibration report to form a non-measurable performance parameter mapping set;

[0046] Step S7 encapsulates the measurable performance parameter source mapping set, the measurable performance parameter calculation model, the device mechanism model and the non-measurable performance parameter mapping set to obtain a coal gasification device calibration model.

[0047] Step 2, obtaining calibration data required for calibrating the coal gasification device;

[0048] Step 3, inputting the obtained calibration data into the calibration model of the coal gasification device to obtain the calibration result of the coal gasification device; wherein, in this step 3, the corresponding performance calibration of the coal gasification device is performed in the following manner: when any performance parameter value obtained is greater than a preset efficiency parameter threshold value corresponding to the any performance parameter, the calibrated coal gasification device has exceeded the standard for any performance parameter value; otherwise, the calibrated coal gasification device has not exceeded the standard for any performance parameter value.

[0049] Step 4: Generate a calibration report of the gasification device for online processing based on the obtained calibration result of the gasification device. The online processing here refers to at least one processing operation of online browsing, editing, checking, exporting and saving. As needed, the generated calibration report of the gasification device can be exported or saved in a required file format such as PDF format or Word format.

[0050] This embodiment also provides a coal gasification device online calibration system for implementing the above-mentioned coal gasification device online calibration method. Specifically, the coal gasification device online calibration system of this embodiment includes:

[0051] Data acquisition module, to obtain the calibration data required for calibrating the coal gasification device;

[0052] The calibration model of the coal gasification device obtains the calibration result of the coal gasification device based on the calibration data obtained by the data acquisition module.

[0053] Although the preferred embodiments of the present invention are described in detail above, it should be clearly understood that various modifications and variations are possible for those skilled in the art. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for online calibration of a coal gasification device, characterized in that: The steps include: Step 1, pre-constructing a calibration model of a coal gasification unit; Step 2, obtaining calibration data required for calibrating the coal gasification device; Step 3, inputting the obtained calibration data into the calibration model of the coal gasification device to obtain the calibration result of the coal gasification device; Step 4: Based on the obtained calibration results of the coal gasification device, a calibration report of the coal gasification device for online processing is generated; wherein: The construction process of the coal gasification unit calibration model includes the following steps: Step S1, collecting a set of performance parameters required for calibrating a coal gasification device; wherein the set of performance parameters includes production capacity, process parameters, product quality, equipment performance, energy consumption and material consumption of the coal gasification device; Step S2, classifying the collected performance parameter sets based on data sources to form a measurable performance parameter set and a non-measurable performance parameter set; Step S3, collecting data sources of performance parameters in the measurable performance parameter set to form a measurable performance parameter source mapping set; Step S4, obtaining a measurable performance parameter calculation model based on the measurable performance parameter source mapping set and the corresponding performance indicator calculation formula; Step S5, constructing a device mechanism model based on the device operation data, and obtaining performance parameters in the non-measurable performance parameter set; Step S6, mapping the non-measurable performance parameters calculated using the mechanism model with the non-measurable performance parameters required by the calibration report to form a non-measurable performance parameter mapping set; Step S7: encapsulating the measurable performance parameter source mapping set, the measurable performance parameter calculation model, the device mechanism model and the non-measurable performance parameter mapping set to obtain a coal gasification device calibration model; The construction process of the device mechanism model includes the following steps: Step a1, collecting design data and operation data of the coal gasification device, and preprocessing the operation data to form a sample database; Step a2, clustering the data in the sample database into operating conditions to form an operating condition data set; Step a3: Based on the operating condition data set, process simulation technology is used to construct device mechanism models corresponding to different operating conditions.

2. The method for online calibration of a coal gasification device according to claim 1, characterized in that: The performance of the coal gasification unit is calibrated as follows: When any performance parameter value obtained is greater than a preset performance parameter threshold corresponding to the performance parameter, the performance parameter value of the coal gasification device is calibrated to be out of standard; Otherwise, any performance parameter value of the calibrated coal gasification unit does not exceed the standard.

3. The method for online calibration of a coal gasification device according to claim 1, characterized in that: The online processing is at least one processing operation of online browsing, editing, checking, exporting and saving.

4. A coal gasification device online calibration system, which implements the coal gasification device online calibration method according to claim 1, characterized in that: The coal gasification unit online calibration system includes: Data acquisition module, to obtain calibration data required for calibrating the coal gasification device; The calibration model of the coal gasification device obtains the calibration result of the coal gasification device based on the calibration data obtained by the data acquisition module.

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