CN114926024A - Online calibration method and system for coal gasification device - Google Patents

Abstract

The invention relates to an on-line calibration method and system for a coal gasification device. The coal gasification device calibration model is constructed in advance, the calibration data required for the calibration of the coal gasification device is obtained, and finally the obtained calibration data is input into the coal gasification device calibration. The model can obtain the calibration results of the coal gasification unit, and automatically generate a calibration report for online processing, which reduces the cost of manual calibration time, improves the calibration efficiency and accuracy of the coal gasification unit, and reduces the preparation and verification time of the coal gasification unit calibration report. .

Description

On-line calibration method and system for coal gasification plant

technical field

The invention relates to the field of coal gasification devices, in particular to an on-line calibration method and system for a coal gasification device.

Background technique

Coal gasification unit is the leader of coal chemical unit. In order to test whether the various operating indicators of the coal gasification plant can meet the design conditions during normal production at full load, or when the plant capacity needs to be assessed, the production capacity, process and control indicators, environmental protection indicators, product quality, and equipment of the coal gasification plant are usually checked. Whether the performance, automatic control level, consumption quota and other indicators can meet the design requirements can be fully calibrated, and then based on the calibration results of the coal gasification unit, the detailed basic data of the coal gasification unit in the actual operating state can be obtained to understand the actual operation of the coal gasification unit. technical performance.

At present, the calibration of coal gasification unit mainly adopts manual calibration method, that is, manually obtain calibration data from multiple data sources such as DCS system, MES system, LIMS system, etc., and fill in the relevant process parameter record table of coal gasification unit. Then, through manual processing and analysis of the obtained calibration data, various performance indicators of the coal gasification unit are calculated and performance parameters such as material balance, heat balance and equipment efficiency are obtained to complete the performance evaluation, and finally the calibration report is manually written. This method has problems such as low calibration efficiency, high labor intensity of calibration work, difficulty in obtaining some data, large data processing amount, and prone to human error.

However, the existing manual calibration methods for coal gasification plants have shortcomings: with the continuous increase of the calibration range of coal gasification plants, the workload of manual calibration work increases, and more manpower and time need to be invested to complete The preparation of the calibration report greatly reduces the calibration efficiency of the coal gasification unit.

SUMMARY OF THE INVENTION

The first technical problem to be solved by the present invention is to provide an on-line calibration method for a coal gasification device that intelligently and automatically completes the calibration for the above-mentioned prior art.

The second technical problem to be solved by the present invention is to provide an on-line calibration system for coal gasification plants that realizes the above-mentioned online calibration method for coal gasification plants.

The technical solution adopted by the present invention to solve the first technical problem is: an on-line calibration method for a coal gasification unit, which is characterized in that it includes the following steps:

Step 1, pre-build a calibration model of the coal gasification unit;

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

Step 3, input the acquired calibration data into the coal gasification unit calibration model to obtain the coal gasification unit calibration result;

Step 4, based on the obtained coal gasification unit calibration results, generate a coal gasification unit calibration report for on-line processing.

Further improvement, in the on-line calibration method of the coal gasification device, the construction process of the calibration model of the coal gasification device includes the following steps:

Step S1, collecting a set of performance parameters required for the calibration of the coal gasification unit; wherein, the performance parameter set includes the production capacity, process parameters, product quality, equipment performance, energy consumption and material consumption of the coal gasification unit;

Step S2, classifying the collected performance parameter set based on the data source 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, and forming a measurable performance parameter source mapping set;

Step S4, based on the measurable performance parameter source mapping set and the corresponding performance index calculation formula, obtain a measurable performance parameter calculation model;

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

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

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.

Further, in the on-line calibration method of the coal gasification device, the construction process of the device mechanism model includes the following steps:

Step a1, collecting the design data and operation data of the coal gasification unit, and preprocessing the operation data to form a sample database;

In step a2, the data in the sample database is clustered by operating conditions to form a data set of operating conditions;

In step a3, based on the working condition data set, a process simulation technology is used to construct device mechanism models corresponding to different working conditions respectively.

Further improvement, in the on-line calibration method of the coal gasification device, the corresponding performance calibration of the coal gasification device is made in the following way:

When the value of any performance parameter obtained is greater than the preset performance parameter threshold value corresponding to the performance parameter, the value of the performance parameter of the calibration coal gasification plant exceeds the standard; otherwise, the value of the performance parameter of the coal gasification device is calibrated. Not exceeded.

Optionally, in the method for on-line calibration of a coal gasification plant, the on-line processing is at least one of on-line browsing, editing, checking, exporting and saving.

The technical solution adopted by the present invention to solve the second technical problem is: an on-line calibration system for a coal gasification device, and realizes the on-line calibration method for the coal gasification device, and is characterized in that, the on-line calibration system for the coal gasification device includes:

The data acquisition module obtains the calibration data required for calibrating the coal gasification unit;

The calibration model of the coal gasification unit is based on the calibration data obtained by the data acquisition module, and the calibration result of the coal gasification unit is obtained.

Compared with the prior art, the advantage of the present invention is that: the on-line calibration method of the coal gasification device in the invention builds the calibration model of the coal gasification device in advance, and then obtains the calibration data required for the calibration of the coal gasification device, and finally uses the obtained calibration data. The calibration data is input into the calibration model of the coal gasification unit, the calibration results of the coal gasification unit are obtained, and the calibration report for online processing is automatically generated, which reduces the time cost of manual calibration, improves the calibration efficiency and accuracy of the coal gasification unit, and reduces the cost of coal gasification. Time for preparation and review of device calibration reports.

Description of drawings

FIG. 1 is a schematic flowchart of an on-line calibration method for a coal gasification unit in an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

This embodiment provides an online calibration method for a coal gasification device. Specifically, as shown in FIG. 1 , the on-line calibration method for a coal gasification plant of this embodiment includes the following steps:

Step 1, constructing a calibration model of the coal gasification unit in advance; wherein, in this embodiment, the construction process of the calibration model of the coal gasification unit includes the following steps S1-S7:

Step S1, collecting a set of performance parameters required for the calibration of the coal gasification unit; wherein, the performance parameter set includes the production capacity, process parameters, product quality, equipment performance, energy consumption and material consumption of the coal gasification unit;

Step S2, classifying the collected performance parameter set based on the data source 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, and forming a measurable performance parameter source mapping set;

Step S4, based on the measurable performance parameter source mapping set and the corresponding performance index calculation formula, obtain a measurable performance parameter calculation model;

For example, for the performance index of carbon conversion rate of a coal gasification unit, the calculation formula of the performance index is as follows:

In step S5, a device mechanism model is constructed based on the device operation data, and performance parameters in the non-measurable performance parameter set are obtained; wherein, the construction process of the device mechanism model includes the following steps a1-a3:

Step a1, collecting the design data and operation data of the coal gasification unit, and preprocessing the operation data to form a sample database;

In step a2, the data in the sample database is clustered by operating conditions to form a data set of operating conditions;

Step a3, based on the working condition data set, using process simulation technology to respectively construct device mechanism models corresponding to different working conditions; wherein, using the process simulation technology to construct device mechanism models belongs to the prior art, and will not be repeated here;

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

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.

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

Step 3, input the acquired calibration data into the coal gasification device calibration model, and obtain the coal gasification device calibration result; wherein, in this step 3, make the corresponding performance calibration for the coal gasification device in the following way: when any of the obtained When the performance parameter value is greater than the preset performance parameter threshold corresponding to the performance parameter, the performance parameter value of the calibration coal gasification device exceeds the standard; otherwise, the performance parameter value of the calibration coal gasification device does not exceed the standard.

Step 4, based on the obtained coal gasification unit calibration results, generate a coal gasification unit calibration report for on-line processing. Wherein, the online processing here is at least one processing operation of online browsing, editing, checking, exporting and saving. As required, the generated coal gasification plant calibration report can be exported or saved in a required file format such as pdf format or word format.

This embodiment also provides an on-line calibration system for a coal gasification device that realizes the above-mentioned method for on-line calibration of a coal gasification device. Specifically, the on-line calibration system of the coal gasification plant of this embodiment includes:

The data acquisition module obtains the calibration data required for calibrating the coal gasification unit;

The calibration model of the coal gasification unit is based on the calibration data obtained by the data acquisition module, and the calibration result of the coal gasification unit is obtained.

Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations of the present invention will occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. The coal gasification device online calibration method is characterized by comprising the following steps:

step 1, a coal gasification device calibration model is constructed in advance;

step 2, obtaining calibration data required by calibrating the coal gasification device;

step 3, inputting the obtained calibration data into a coal gasification device calibration model to obtain a coal gasification device calibration result;

and 4, generating a coal gasification device calibration report for online processing based on the obtained coal gasification device calibration result.

2. The coal gasification device online calibration method according to claim 1, wherein the coal gasification device calibration model is constructed by the following steps:

step S1, collecting a performance parameter set required by the calibration coal gasification device; wherein the set of performance parameters comprises the 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 the data source sources to form a measurable performance parameter set and a non-measurable performance parameter set;

step S3, collecting the data source of the performance parameter 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 index calculation formula;

step S5, constructing a device mechanism model based on the device operation data, and acquiring the performance parameters in the non-measurable performance parameter set;

step S6, mapping the non-measurable performance parameters calculated by the mechanism model and the non-measurable performance parameters correspondingly needed by the calibration report to form a non-measurable performance parameter mapping set;

and step S7, packaging 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 the coal gasification device calibration model.

3. The coal gasification device on-line calibration method according to claim 2, wherein the device mechanism model construction process comprises the following steps:

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

step a2, performing working condition clustering on the data in the sample database to form a working condition data set;

step a3, based on the working condition data set, respectively constructing device mechanism models corresponding to different working conditions by adopting a flow simulation technology.

4. The coal gasification device online calibration method according to claim 1, wherein the coal gasification device is calibrated according to the following modes:

when any one obtained performance parameter value is larger than a preset performance parameter threshold value corresponding to any one performance parameter, calibrating that any one performance parameter value of the coal gasification device exceeds the standard; otherwise, any performance parameter value of the calibrated coal gasification device does not exceed the standard.

5. The coal gasification apparatus online calibration method according to claim 1, wherein the online processing is at least one processing operation of online browsing, editing, checking, exporting, and storing.

6. An online calibration system for a coal gasification apparatus, which implements the online calibration method for a coal gasification apparatus according to claim 1, is characterized by comprising:

the data acquisition module is used for acquiring calibration data required by the calibration coal gasification device;

and the coal gasification device calibration model is used for obtaining a coal gasification device calibration result based on the calibration data obtained by the data acquisition module.

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