Method and device for judging boiler combustion parameters

Abstract

The present application discloses a method and device for judging boiler combustion parameters. The method for judging boiler combustion parameters includes: obtaining the combustion setting parameters of the boiler; inputting the combustion setting parameters into a target combustion model to obtain predicted energy consumption data corresponding to the combustion setting parameters; and judging whether to adjust the combustion setting parameters according to the predicted energy consumption data.

Description

Technical Field

[0001] This application relates to the field of boiler combustion, and in particular, to a method and device for judging boiler combustion parameters. Background Art

[0002] In recent years, with the continuous improvement of China's industrialization level, as well as the continuous rise of energy prices and energy consumption elasticity, energy conservation and consumption reduction have become an important issue in the country's industrial development.

[0003] In the related art, the energy consumption level of the power system in a thermal power plant is statistically calculated, evaluated, and even experimentally evaluated through cumulative reading manual meter reading. Only by doing so can the real level be grasped. Analyzing the energy consumption level through this technology takes a long time, and it is impossible to analyze the energy consumption data in a timely manner and give feedback. Summary of the Invention

[0004] This application discloses a method and device for judging boiler combustion parameters, which solves the problem that the energy consumption data cannot be analyzed and feedback given in a timely manner.

[0005] To solve the above problems, this application adopts the following technical solutions:

[0006] In a first aspect, an embodiment of this application discloses a method for judging boiler combustion parameters, including: obtaining the combustion setting parameters of the boiler; inputting the combustion setting parameters into a target combustion model to obtain predicted energy consumption data corresponding to the combustion setting parameters; and judging whether to adjust the combustion setting parameters according to the predicted energy consumption data.

[0007] In a second aspect, an embodiment of this application discloses a device for judging boiler combustion parameters, including: a first obtaining module for obtaining the combustion setting parameters of the boiler; a second obtaining module for inputting the combustion setting parameters into a target combustion model to obtain predicted energy consumption data corresponding to the combustion setting parameters; and a judging module for judging whether to adjust the combustion setting parameters according to the predicted energy consumption data.

[0008] The technical solutions adopted by this application can achieve the following beneficial effects:

[0009] An embodiment of this application provides a method for judging boiler combustion parameters, including: obtaining the combustion setting parameters of the boiler; inputting the combustion setting parameters into a target combustion model to obtain predicted energy consumption data corresponding to the combustion setting parameters; and judging whether to adjust the combustion setting parameters according to the predicted energy consumption data. By inputting the obtained combustion setting parameters into the target combustion model, this application predicts the predicted energy consumption data corresponding to the combustion setting parameters, and then judges whether to adjust the combustion setting parameters according to the predicted energy consumption data, thus solving the problem that the energy consumption data cannot be analyzed and feedback given in a timely manner. Description of the Drawings

[0010] Figure 1 It is a schematic flowchart of a method for judging boiler combustion parameters disclosed in an embodiment of the present application;

[0011] Figure 2 It is a schematic structural diagram of a device for judging boiler combustion parameters disclosed in an embodiment of the present application. Detailed Embodiments

[0012] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0013] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0014] Next, in conjunction with the accompanying drawings, the method and device for judging boiler combustion parameters provided in the embodiments of the present application will be described in detail through specific embodiments and their application scenarios.

[0015] Figure 1 It is a schematic flowchart of a method for judging boiler combustion parameters provided in an embodiment of the present application. This method can be executed by an electronic device, and the electronic device can include: a server and / or a terminal device. In other words, this method can be executed by software or hardware installed in the electronic device. The method includes the following steps:

[0016] S120. Obtain the combustion setting parameters of the boiler.

[0017] In this application, the obtained combustion setting parameters of the boiler can be the combustion setting parameters of one boiler or those of multiple boilers. The multiple boilers can be distributed in the same plant or in different plants. In this application, the combustion setting parameters of the boiler can be obtained through information systems such as a Distributed Control System (DCS) and a Plant Information System (PI). The combustion parameters of the boiler include coal feeding amount, limestone amount, primary fan frequency, secondary fan frequency, oxygen content in the tail gas, sulfur dioxide content, etc.

[0018] S140. Input the combustion setting parameters into the target combustion model to obtain predicted energy consumption data corresponding to the combustion setting parameters.

[0019] Specifically, the obtained combustion setting parameters can be input into the pre-established and trained target combustion model, and the predicted energy consumption data corresponding to the combustion setting parameters can be obtained through prediction by the target combustion model.

[0020] S160. Determine whether to adjust the combustion setting parameters according to the predicted energy consumption data.

[0021] Specifically, it can be determined whether to adjust the combustion setting parameters according to the predicted energy consumption data corresponding to the combustion setting parameters predicted by the target combustion model. For example, when the predicted energy consumption data is large, it can be determined to adjust the combustion setting parameters; when the predicted energy consumption data is small, it is determined not to adjust the combustion setting parameters.

[0022] The embodiment of this application provides a method for judging boiler combustion parameters, including: obtaining the combustion setting parameters of the boiler; inputting the combustion setting parameters into the target combustion model to obtain predicted energy consumption data corresponding to the combustion setting parameters; and determining whether to adjust the combustion setting parameters according to the predicted energy consumption data. By inputting the obtained combustion setting parameters into the target combustion model in this application, predicting the predicted energy consumption data corresponding to the combustion setting parameters, and then determining whether to adjust the combustion setting parameters according to the predicted energy consumption data, the problem of not being able to analyze and give feedback on energy consumption data in a timely manner is solved.

[0023] In the embodiments of the present application, determining whether to adjust the combustion setting parameters according to the predicted energy consumption data may include: when the predicted energy consumption data is greater than a first threshold, determining to adjust the combustion setting parameters. That is, when the predicted energy consumption data obtained by predicting according to the target combustion model is greater than the first threshold, it is determined that the combustion setting parameters need to be adjusted. Among them, the magnitude of the first threshold can be adjusted according to actual requirements, and the present application does not make specific limitations on this.

[0024] In one implementation, after determining to adjust the combustion setting parameters, it may further include: displaying the adjustment amount corresponding to the combustion setting parameters. That is, after determining that the predicted energy consumption data obtained by predicting according to the target combustion model is greater than the first threshold and determining to adjust the combustion setting parameters, the adjustment amount corresponding to the combustion setting parameters may also be displayed, and relevant technicians adjust the combustion setting parameters according to the displayed adjustment amount corresponding to the combustion setting parameters. For example, when it is predicted that the predicted energy consumption data is greater than the first threshold due to excessive coal feeding amount, relevant technicians can adjust the coal feeding amount according to the displayed adjustment amount.

[0025] In an alternative manner, after displaying the adjustment amount corresponding to the combustion setting parameters, it may further include: adjusting the combustion setting parameters according to the adjustment amount. That is, after determining the adjustment amount, the device can directly adjust the combustion setting parameters according to the adjustment amount. For example, when it is predicted that the predicted energy consumption data is greater than the first threshold due to excessive coal feeding amount, the device can directly adjust the coal feeding amount according to the adjustment amount. The device directly adjusting the combustion setting parameters according to the adjustment amount can reduce human operation, reduce adjustment errors, and improve adjustment accuracy.

[0026] In the embodiments of the present application, determining whether to adjust the combustion setting parameters according to the predicted energy consumption data may include: when the predicted energy consumption data is less than a second threshold, prohibiting adjustment of the combustion setting parameters. That is, when the predicted energy consumption data obtained by predicting according to the target combustion model is less than the second threshold, adjustment of the combustion setting parameters is prohibited. Among them, the second threshold may be equal to the first threshold, and the second threshold may also be less than the first threshold. The magnitude of the second threshold can be adjusted according to actual requirements, and the present application does not make specific limitations on this.

[0027] In a further technical solution, after the adjustment of the combustion setting parameters is prohibited, the following steps may further be included: obtaining the actual energy consumption data of the boiler under the combustion setting parameters; and adjusting the target combustion model according to the combustion setting parameters when the actual energy consumption data is less than the predicted energy consumption data. That is to say, after the adjustment of the combustion setting parameters is prohibited when the predicted energy consumption data is less than the second threshold, the actual energy consumption data of the boiler corresponding to the combustion setting parameters can be obtained. When the actual energy consumption data is less than the predicted energy consumption data, the target combustion model can be adjusted according to the combustion setting parameters, that is, the target combustion model can be adjusted according to the combustion setting parameters with smaller corresponding energy consumption data. After the target combustion model is adjusted, the subsequent obtained combustion setting parameters are input into the adjusted target combustion model to obtain the predicted energy consumption data corresponding to the combustion setting parameters.

[0028] In the embodiment of the present application, before obtaining the combustion setting parameters of the boiler, the following steps may further be included: establishing and training a target combustion model according to historical data of multiple boilers, where the historical data includes historical combustion setting parameters and corresponding historical energy consumption data. Specifically, a target combustion model can be established according to the historical data of a group of boilers, and then the target combustion model can be trained according to the historical data of multiple boilers to obtain a target combustion model matching the specific equipment.

[0029] Since the advanced process control (APC) control technology is mostly applied to application scenarios with many parameter couplings, strong non-linear expressions, and large time delays, the core model predictive control (MPC) algorithm of the APC technology can predict the future dynamic and static characteristics of the controlled object within a certain time step by using a given system prediction model, and construct a cost function through the system input / output prediction trajectory and the ideal input / output trajectory. The boiler of the unit is such a complex system. Therefore, the target combustion model in the present application can be established according to the model predictive control algorithm.

[0030] It should be noted that for the method for judging boiler combustion parameters provided in the embodiment of the present application, the execution subject may be a device for judging boiler combustion parameters, or a control module in the device for judging boiler combustion parameters that executes the method for judging boiler combustion parameters. In the embodiment of the present application, the method for judging boiler combustion parameters executed by the device for judging boiler combustion parameters is taken as an example to illustrate the device for judging boiler combustion parameters provided in the embodiment of the present application.

[0031] Figure 2 This is a schematic structural diagram of a device for judging boiler combustion parameters disclosed in the embodiment of the present application. As Figure 2As shown in the figure, the judging device 200 for boiler combustion parameters includes a first obtaining module 210, a second obtaining module 220, and a judging module 230.

[0032] In this application, the first obtaining module 210 is configured to obtain the combustion setting parameters of the boiler; the second obtaining module 220 is configured to input the combustion setting parameters into a target combustion model to obtain predicted energy consumption data corresponding to the combustion setting parameters; the judging module 230 is configured to judge whether to adjust the combustion setting parameters according to the predicted energy consumption data.

[0033] In one implementation, the judging module 230 judges whether to adjust the combustion setting parameters according to the predicted energy consumption data, including: determining to adjust the combustion setting parameters when the predicted energy consumption data is greater than a first threshold.

[0034] In one implementation, the judging module 230 is further configured to: after determining to adjust the combustion setting parameters, display the adjustment amount corresponding to the combustion setting parameters.

[0035] In one implementation, the judging module 230 is further configured to: after displaying the adjustment amount corresponding to the combustion setting parameters, adjust the combustion setting parameters according to the adjustment amount.

[0036] In one implementation, the judging module 230 judges whether to adjust the combustion setting parameters according to the predicted energy consumption data, including: prohibiting the adjustment of the combustion setting parameters when the predicted energy consumption data is less than a second threshold.

[0037] In one implementation, the judging module 230 is further configured to: after prohibiting the adjustment of the combustion setting parameters, obtain the actual energy consumption data of the boiler under the combustion setting parameters; when the actual energy consumption data is less than the predicted energy consumption data, adjust the target combustion model according to the combustion setting parameters.

[0038] In one implementation, the first obtaining module 210 is further configured to: before obtaining the combustion setting parameters of the boiler, establish and train a target combustion model according to historical data of multiple boilers, where the historical data includes: historical combustion setting parameters and corresponding historical energy consumption data.

[0039] In one implementation, the target combustion model is established according to a model predictive control algorithm.

[0040] In the above embodiments of the present application, the differences between the various embodiments are mainly described. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity in writing, they will not be elaborated here.

[0041] The above description is only for the embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A method for judging boiler combustion parameters, characterized in that, it includes: Obtain the combustion setting parameters of the boiler; Input the combustion setting parameters into the target combustion model to obtain predicted energy consumption data corresponding to the combustion setting parameters; Judge whether to adjust the combustion setting parameters according to the predicted energy consumption data; The judging whether to adjust the combustion setting parameters according to the predicted energy consumption data includes: When the predicted energy consumption data is less than the second threshold, prohibit adjusting the combustion setting parameters; After prohibiting the adjustment of the combustion setting parameters, it further includes: Obtain the actual energy consumption data of the boiler under the combustion setting parameters; When the actual energy consumption data is less than the predicted energy consumption data, adjust the target combustion model according to the combustion setting parameters.

2. The judging method according to claim 1, characterized in that, The judging whether to adjust the combustion setting parameters according to the predicted energy consumption data includes: When the predicted energy consumption data is greater than the first threshold, determine to adjust the combustion setting parameters.

3. The judging method according to claim 2, characterized in that, After determining to adjust the combustion setting parameters, it further includes: Display the adjustment amount corresponding to the combustion setting parameters.

4. The judging method according to claim 3, characterized in that, After displaying the adjustment amount corresponding to the combustion setting parameters, it further includes: Adjust the combustion setting parameters according to the adjustment amount.

5. The judging method according to claim 1, characterized in that, Before obtaining the combustion setting parameters of the boiler, it further includes: Establish and train the target combustion model according to multiple groups of historical data of the boiler, where the historical data includes: historical combustion setting parameters and corresponding historical energy consumption data.

6. The judging method according to claim 5, characterized in that, The target combustion model is established according to the model predictive control algorithm.

7. A device for judging boiler combustion parameters, characterized in that, it includes: The first acquisition module is used to acquire the combustion setting parameters of the boiler; The second acquisition module is used to input the combustion setting parameters into the target combustion model to obtain predicted energy consumption data corresponding to the combustion setting parameters; The judging module is used to judge whether to adjust the combustion setting parameters according to the predicted energy consumption data; In the judging module, judging whether to adjust the combustion setting parameters according to the predicted energy consumption data includes: When the predicted energy consumption data is less than the second threshold, prohibit adjusting the combustion setting parameters; The judging module is further used to, after prohibiting the adjustment of the combustion setting parameters, acquire the actual energy consumption data of the boiler under the combustion setting parameters; When the actual energy consumption data is less than the predicted energy consumption data, adjust the target combustion model according to the combustion setting parameters.

8. The judging device according to claim 7, characterized in that, The judgment module determines whether to adjust the combustion setting parameters according to the predicted energy consumption data, including: When the predicted energy consumption data is greater than the first threshold, it is determined to adjust the combustion setting parameters.

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