Flue gas emission treatment system of thermal generator set

Abstract

The invention relates to the technical field of thermal generator sets, and discloses a thermal generator set flue gas emission processing system, which is characterized in that a data determination module obtains flue gas dust concentration data of a thermal generator set at multiple moments, and determines representative flue gas dust concentration data and non-representative flue gas dust concentration data; the factor calculation module analyzes the representative flue gas dust concentration data and the non-representative flue gas dust concentration data and calculates flue gas dust concentration fluctuation factors; the behavior analysis module collects historical flue gas dust concentration treatment behaviors and determines historical flue gas dust concentration treatment factors; the emission processing module optimizes the flue gas dust concentration fluctuation factor based on historical flue gas dust concentration processing factors to obtain an optimized flue gas dust concentration fluctuation factor, sets an emission processing strategy, realizes accurate monitoring and dynamic regulation and control of the dust concentration, ensures that emission meets the environmental protection standard, reduces manual intervention, reduces the operation and maintenance cost, and improves the environmental protection efficiency. Safe operation of the thermal generator set is guaranteed, and production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal power generation units, and in particular, to a flue gas emission treatment system for a thermal power generation unit. Background Art

[0002] With the increasingly serious emissions of air pollutants and the enhancement of people's environmental protection awareness, the monitoring and control of pollutants in the emission process have become increasingly important. Since the flue gas in thermal power generation units usually carries a large amount of flue gas dust, strict limits need to be imposed on the flue gas emissions of thermal power units in thermal power plants. Therefore, it is particularly important to process the flue gas dust concentration of the flue gas emissions of each thermal power generation unit.

[0003] In the prior art, the monitoring and treatment of flue gas dust concentration still mainly rely on traditional manual monitoring means, and this method has obvious technical limitations. First of all, manual monitoring usually adopts intermittent sampling, which cannot realize real-time continuous data collection, resulting in time lag in monitoring results. Secondly, the measurement accuracy of manual operation is greatly affected by environmental factors and human errors, and it is difficult to ensure the accuracy and reliability of data. More importantly, this passive monitoring mode lacks intelligent linkage with the treatment system and cannot establish a closed-loop control system, resulting in the inability of dust treatment equipment to dynamically adjust according to the concentration change, causing excessive pollutant emissions, resulting in energy waste and equipment loss of thermal power generation units. Summary of the Invention

[0004] An embodiment of the present invention provides a flue gas emission treatment system for a thermal power generation unit. The present invention can achieve accurate monitoring and dynamic regulation of dust concentration, ensure that emissions meet environmental protection standards, reduce manual intervention, improve operation efficiency and reduce operation and maintenance costs, ensure the safe operation of thermal power generation units, and improve production efficiency.

[0005] To achieve the above object, the present invention provides a flue gas emission treatment system for a thermal power generation unit, including: A data determination module, configured to obtain flue gas dust concentration data of the thermal power generation unit at multiple moments, and determine representative flue gas dust concentration data and non-representative flue gas dust concentration data of the thermal power generation unit according to all the flue gas dust concentration data; A factor calculation module, configured to analyze all the representative flue gas dust concentration data and non-representative flue gas dust concentration data, and calculate a flue gas dust concentration fluctuation factor of the thermal power generation unit based on the analysis result; A behavior analysis module, configured to collect historical flue gas dust concentration treatment behaviors of the thermal power generation unit, and analyze the historical flue gas dust concentration treatment behaviors to determine historical flue gas dust concentration treatment factors of the thermal power generation unit; An emission treatment module, configured to optimize the flue gas dust concentration fluctuation factor based on the historical flue gas dust concentration treatment factor, obtain an optimized flue gas dust concentration fluctuation factor, and set an emission treatment strategy for the flue gas dust concentration treatment device based on the optimized flue gas dust concentration fluctuation factor.

[0006] Further, the data determination module is configured to: The data determination module is configured to sort and combine all the flue gas dust concentration data based on the time sequence to obtain a flue gas dust concentration data group; The data determination module is configured to use any one of the flue gas dust concentration data in the flue gas dust concentration data group as the first flue gas dust concentration data; The data determination module is configured to preset a first quantity and a second quantity, and determine the first adjacent flue gas dust concentration data of the first flue gas dust concentration data based on the first quantity; The data determination module is configured to determine the second adjacent flue gas dust concentration data of the first flue gas dust concentration data based on the second quantity; The data determination module is configured to use the first flue gas dust concentration data, the first adjacent flue gas dust concentration data, and the second adjacent flue gas dust concentration data as the first flue gas dust concentration data group; The data determination module is configured to calculate a data representative value of the first flue gas dust concentration data based on the first flue gas dust concentration data group; The data determination module is configured to, when the data representative value is greater than or equal to a preset data representative value, use the first flue gas dust concentration data as the representative flue gas dust concentration data; The data determination module is configured to, when the data representative value is less than the preset data representative value, use the first flue gas dust concentration data as the non-representative flue gas dust concentration data.

[0007] Further, the data determination module is configured to: The data determination module is configured to calculate the data representative value of the first flue gas dust concentration data according to the following formula: ; where p is the data representative value of the first flue gas dust concentration data, u is the number of flue gas dust concentration data in the first flue gas dust concentration data group, y is the first flue gas dust concentration data, t i is the i-th flue gas dust concentration data in the first flue gas dust concentration data group except the first flue gas dust concentration data, is the mean value of the flue gas dust concentration data in the first flue gas dust concentration data group except the i-th flue gas dust concentration data, is the difference between the first flue gas dust concentration data and the mean value.

[0008] Further, the factor calculation module is used for: The factor calculation module is used to extract the same representative flue gas dust concentration data from all the representative flue gas dust concentration data; The factor calculation module is used to count the quantity of the same flue gas dust concentration data and the sum value of the same flue gas dust concentration data for all the same representative flue gas dust concentration data; The factor calculation module is used to extract the different representative flue gas dust concentration data from all the representative flue gas dust concentration data; The factor calculation module is used to count the quantity of the different flue gas dust concentration data and the sum value of the different flue gas dust concentration data for all the different representative flue gas dust concentration data; The factor calculation module is used to count the quantity of the representative flue gas dust concentration data for all the representative flue gas dust concentration data, and count the quantity of the non - representative flue gas dust concentration data for the non - representative flue gas dust concentration data; The factor calculation module is used to calculate the flue gas dust concentration fluctuation factor of the thermal power generating unit.

[0009] Further, the factor calculation module is used for: The factor calculation module is used to calculate the flue gas dust concentration fluctuation factor of the thermal power generating unit according to the following formula: ; where, w is the flue gas dust concentration fluctuation factor of the thermal power generating unit, q1 is the quantity of the same flue gas dust concentration data, q2 is the quantity of the different flue gas dust concentration data, a1 is the sum value of the same flue gas dust concentration data, a2 is the sum value of the different flue gas dust concentration data. When then s = 0.8. When then s = 1. When then s = 1.2.

[0010] Further, the behavior analysis module is used for: The behavior analysis module is used to analyze the historical flue gas dust concentration treatment behaviors, and determine the corresponding historical flue gas dust emission concentration for each historical flue gas dust concentration treatment behavior; When the historical flue gas dust emission concentration is less than the preset historical flue gas dust emission concentration, the behavior analysis module is used to regard the corresponding historical flue gas dust concentration treatment behavior as a compliant flue gas dust concentration treatment behavior; When the historical flue gas dust emission concentration is greater than or equal to the preset historical flue gas dust emission concentration, the behavior analysis module is used to regard the corresponding historical flue gas dust concentration treatment behavior as a non - compliant flue gas dust concentration treatment behavior; The behavior analysis module is used to extract the maximum historical flue gas dust emission concentration from the compliant flue gas dust concentration treatment behavior; The behavior analysis module is used to calculate the historical flue gas dust emission concentration deviation value between the historical flue gas dust emission concentration and the maximum historical flue gas dust emission concentration in the non-compliant flue gas dust concentration treatment behavior respectively; The behavior analysis module is used to determine the historical flue gas dust concentration treatment factor of the thermal power generating unit according to all the historical flue gas dust emission concentration deviation values.

[0011] Further, the behavior analysis module is used to: The behavior analysis module is used to calculate the historical flue gas dust concentration treatment factor of the thermal power generating unit according to the following formula: ; where f is the historical flue gas dust concentration treatment factor of the thermal power generating unit, g1 is the first calculation coefficient, g2 is the second calculation coefficient, g1 + g2 = 1, g2 > g1, h1 is the number of behaviors of the non-compliant flue gas dust concentration treatment behavior, h2 is the number of behaviors of the compliant flue gas dust concentration treatment behavior, k j is the historical flue gas dust emission concentration corresponding to the jth non-compliant flue gas dust concentration treatment behavior, k max is the maximum historical flue gas dust emission concentration corresponding to the non-compliant flue gas dust concentration treatment behavior.

[0012] Further, the emission treatment module is used to: The emission treatment module is used to preset the first preset historical flue gas dust concentration treatment factor and the second preset historical flue gas dust concentration treatment factor; The emission treatment module is used to preset the first preset optimization coefficient, the second preset optimization coefficient and the third preset optimization coefficient; The emission treatment module is used to optimize the flue gas dust concentration fluctuation factor based on the first preset optimization coefficient to obtain an optimized flue gas dust concentration fluctuation factor when the historical flue gas dust concentration treatment factor is less than the first preset historical flue gas dust concentration treatment factor; The emission treatment module is used to optimize the flue gas dust concentration fluctuation factor based on the second preset optimization coefficient to obtain an optimized flue gas dust concentration fluctuation factor when the historical flue gas dust concentration treatment factor is greater than or equal to the first preset historical flue gas dust concentration treatment factor and less than the second preset historical flue gas dust concentration treatment factor; The emission treatment module is configured to optimize the flue gas dust concentration fluctuation factor based on the third preset optimization coefficient when the historical flue gas dust concentration treatment factor is greater than or equal to the second preset historical flue gas dust concentration treatment factor, so as to obtain an optimized flue gas dust concentration fluctuation factor.

[0013] Further, the emission treatment module is configured to: The emission treatment module is configured to obtain a pre-set factor-strategy mapping table, traverse the optimized flue gas dust concentration fluctuation factor on the factor-strategy mapping table, and determine an emission treatment strategy corresponding to the optimized flue gas dust concentration fluctuation factor.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention discloses a flue gas emission treatment system for a thermal power generating unit. The data determination module obtains flue gas dust concentration data of the thermal power generating unit at multiple moments, and determines representative flue gas dust concentration data and non-representative flue gas dust concentration data; the factor calculation module analyzes the representative flue gas dust concentration data and the non-representative flue gas dust concentration data, and calculates the flue gas dust concentration fluctuation factor; the behavior analysis module collects historical flue gas dust concentration treatment behaviors, and determines the historical flue gas dust concentration treatment factor; the emission treatment module optimizes the flue gas dust concentration fluctuation factor based on the historical flue gas dust concentration treatment factor to obtain an optimized flue gas dust concentration fluctuation factor, sets an emission treatment strategy, realizes accurate monitoring and dynamic regulation of the dust concentration, ensures that the emissions meet the environmental protection standards, reduces manual intervention, reduces the operation and maintenance costs, ensures the safe operation of the thermal power generating unit, and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings: Figure 1 A schematic structural diagram of a flue gas emission treatment system for a thermal power generating unit in an embodiment of the present invention is shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will further describe in detail the specific embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0017] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0018] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0019] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0020] The following is a description of the preferred embodiments of the present invention in conjunction with the drawings.

[0021] As Figure 1 shown, an embodiment of the present invention discloses a flue gas emission treatment system for a thermal power generation unit, including: A data determination module, configured to obtain the flue gas dust concentration data of the thermal power generation unit at multiple moments, and determine the representative flue gas dust concentration data and non-representative flue gas dust concentration data of the thermal power generation unit according to all the flue gas dust concentration data; A factor calculation module, configured to analyze all the representative flue gas dust concentration data and non-representative flue gas dust concentration data, and calculate the flue gas dust concentration fluctuation factor of the thermal power generation unit based on the analysis result; A behavior analysis module, configured to collect the historical flue gas dust concentration treatment behaviors of the thermal power generation unit, and analyze the historical flue gas dust concentration treatment behaviors to determine the historical flue gas dust concentration treatment factor of the thermal power generation unit; An emission treatment module is used to optimize the flue gas dust concentration fluctuation factor based on the historical flue gas dust concentration treatment factor, obtain an optimized flue gas dust concentration fluctuation factor, and set an emission treatment strategy for the flue gas dust concentration treatment device based on the optimized flue gas dust concentration fluctuation factor.

[0022] In this embodiment, the number of moments can be set according to actual conditions, and it is preferably 20 here.

[0023] In this embodiment, the flue gas dust concentration data refers to the specific flue gas dust concentration.

[0024] The beneficial effects of the above technical solution are: The present invention realizes the accurate monitoring and dynamic regulation of the dust concentration, ensures that the emissions meet the environmental protection standards, reduces manual intervention, lowers the operation and maintenance costs, guarantees the safe operation of the thermal power generating unit, and improves the production efficiency.

[0025] In some embodiments of the present application, the data determination module is used for: The data determination module is used to sort and combine all the flue gas dust concentration data based on the time sequence to obtain a flue gas dust concentration data group; The data determination module is used to take any flue gas dust concentration data in the flue gas dust concentration data group as the first flue gas dust concentration data; The data determination module is used to preset a first quantity and a second quantity, and determine the first adjacent flue gas dust concentration data of the first flue gas dust concentration data based on the first quantity; The data determination module is used to determine the second adjacent flue gas dust concentration data of the first flue gas dust concentration data based on the second quantity; The data determination module is used to take the first flue gas dust concentration data, the first adjacent flue gas dust concentration data, and the second adjacent flue gas dust concentration data as the first flue gas dust concentration data group; The data determination module is used to calculate the data representative value of the first flue gas dust concentration data based on the first flue gas dust concentration data group; The data determination module is used to, when the data representative value is greater than or equal to the preset data representative value, take the first flue gas dust concentration data as the representative flue gas dust concentration data; The data determination module is used to, when the data representative value is less than the preset data representative value, take the first flue gas dust concentration data as the non-representative flue gas dust concentration data.

[0026] In this embodiment, the first quantity is preferably 8, and the second quantity is preferably 5, and can be specifically adjusted according to actual conditions.

[0027] In this embodiment, the first adjacent flue gas dust concentration data refers to the flue gas dust concentration data adjacent to the left of the first flue gas dust concentration data. If the actual quantity is less than 8, the actual quantity shall prevail.

[0028] In this embodiment, the first adjacent flue gas dust concentration data refers to the flue gas dust concentration data adjacent to the right of the first flue gas dust concentration data. If the actual quantity is less than 5, the actual quantity shall prevail.

[0029] In this embodiment, the preset data representative value is preferably 10, and can be specifically adjusted according to the actual situation.

[0030] The beneficial effects of the above technical solution are as follows: The present invention calculates the data representative value of the first flue gas dust concentration data based on the first flue gas dust concentration data group. The data representative value can reflect the importance degree of the flue gas dust concentration data in the first flue gas dust concentration data group. Then, according to the data representative value and the preset data representative value, representative flue gas dust concentration data and non-representative flue gas dust concentration data are selected. The representative flue gas dust concentration data and non-representative flue gas dust concentration data can reflect the flue gas concentration situation of the thermal power generating unit, thereby laying a foundation for reducing the flue gas concentration of the thermal power generating unit.

[0031] In some embodiments of the present application, the data determination module is used for: The data determination module is used to calculate the data representative value of the first flue gas dust concentration data according to the following formula: ; where p is the data representative value of the first flue gas dust concentration data, u is the number of flue gas dust concentration data in the first flue gas dust concentration data group, y is the first flue gas dust concentration data, and t i is the i-th flue gas dust concentration data in the first flue gas dust concentration data group except the first flue gas dust concentration data, is the mean value of the flue gas dust concentration data in the first flue gas dust concentration data group except the i-th flue gas dust concentration data, is the difference between the first flue gas dust concentration data and the mean value.

[0032] In some embodiments of the present application, the factor calculation module is used for: The factor calculation module is used to extract the same representative flue gas dust concentration data from all the representative flue gas dust concentration data; The factor calculation module is used to count the number of the same flue gas dust concentration data and the sum value of the same flue gas dust concentration data of all the same representative flue gas dust concentration data; The factor calculation module is used to extract the different representative flue gas dust concentration data from all the representative flue gas dust concentration data; The factor calculation module is used to count the number of different flue gas dust concentration data representing the flue gas dust concentration data and the sum value of the different flue gas dust concentration data; The factor calculation module is used to count the number of representative flue gas dust concentration data representing all flue gas dust concentration data, and count the number of non-representative flue gas dust concentration data of the non-representative flue gas dust concentration data; The factor calculation module is used to calculate the flue gas dust concentration fluctuation factor of the thermal power generating unit.

[0033] The beneficial effects of the above technical solution are: The present invention calculates the flue gas dust concentration fluctuation factor of the thermal power generating unit according to the number of identical flue gas dust concentration data, the sum value of the identical flue gas dust concentration data, the number of different flue gas dust concentration data and the sum value of the different flue gas dust concentration data, which ensures the calculation accuracy and calculation efficiency of the flue gas dust concentration fluctuation factor, further provides data support for the flue gas emission treatment of the thermal power generating unit, and ensures the accuracy of the flue gas concentration emission treatment.

[0034] In some embodiments of the present application, the factor calculation module is used for: The factor calculation module is used to calculate the flue gas dust concentration fluctuation factor of the thermal power generating unit according to the following formula: ; Wherein, w is the flue gas dust concentration fluctuation factor of the thermal power generating unit, q1 is the number of identical flue gas dust concentration data, q2 is the number of different flue gas dust concentration data, a1 is the sum value of the identical flue gas dust concentration data, a2 is the sum value of the different flue gas dust concentration data, when When, then s = 0.8, when When, then s = 1, when When, then s = 1.2.

[0035] In some embodiments of the present application, the behavior analysis module is used for: The behavior analysis module is used to analyze the historical flue gas dust concentration treatment behavior to determine the historical flue gas dust emission concentration corresponding to each historical flue gas dust concentration treatment behavior; The behavior analysis module is used to, when the historical flue gas dust emission concentration is less than the preset historical flue gas dust emission concentration, regard the corresponding historical flue gas dust concentration treatment behavior as a compliant flue gas dust concentration treatment behavior; The behavior analysis module is used to, when the historical flue gas dust emission concentration is greater than or equal to the preset historical flue gas dust emission concentration, regard the corresponding historical flue gas dust concentration treatment behavior as a non-compliant flue gas dust concentration treatment behavior; The behavior analysis module is used to extract the maximum historical flue gas dust emission concentration from the compliant flue gas dust concentration treatment behavior; The behavior analysis module is used to calculate the historical flue gas dust emission concentration deviation value between the historical flue gas dust emission concentration and the maximum historical flue gas dust emission concentration in the non-compliant flue gas dust concentration treatment behavior respectively; The behavior analysis module is used to determine the historical flue gas dust concentration treatment factor of the thermal power generating unit according to all the historical flue gas dust emission concentration deviation values.

[0036] In this embodiment, the historical flue gas dust emission concentration refers to the historical actual flue gas dust emission concentration corresponding to the historical flue gas dust concentration treatment behavior.

[0037] In this embodiment, the preset historical flue gas dust emission concentration is preset and corresponds to the thermal power generating unit.

[0038] In this embodiment, the maximum historical flue gas dust emission concentration is also the concentration closest to the preset historical flue gas dust emission concentration.

[0039] The beneficial effect of the above technical solution is that the present invention determines the historical flue gas dust concentration treatment factor of the thermal power generating unit according to all the historical flue gas dust emission concentration deviation values. The historical flue gas dust concentration treatment factor can reflect the overall historical dust removal difficulty of the thermal power generating unit, thereby providing data support for the real-time dust removal of the thermal power generating unit and further ensuring the real-time dust removal accuracy.

[0040] In some embodiments of the present application, the behavior analysis module is used for: The behavior analysis module is used to calculate the historical flue gas dust concentration treatment factor of the thermal power generating unit according to the following formula: ; where f is the historical flue gas dust concentration treatment factor of the thermal power generating unit, g1 is the first calculation coefficient, g2 is the second calculation coefficient, g1 + g2 = 1, g2 > g1, h1 is the number of behaviors of the non-compliant flue gas dust concentration treatment behavior, h2 is the number of behaviors of the compliant flue gas dust concentration treatment behavior, k j is the historical flue gas dust emission concentration corresponding to the jth non-compliant flue gas dust concentration treatment behavior, k max is the maximum historical flue gas dust emission concentration corresponding to the non-compliant flue gas dust concentration treatment behavior.

[0041] In some embodiments of the present application, the emission treatment module is used for: The emission treatment module is used to preset the first preset historical flue gas dust concentration treatment factor and the second preset historical flue gas dust concentration treatment factor; The emission treatment module is used to preset a first preset optimization coefficient, a second preset optimization coefficient, and a third preset optimization coefficient; When the historical flue gas dust concentration treatment factor is less than the first preset historical flue gas dust concentration treatment factor, the emission treatment module is used to optimize the flue gas dust concentration fluctuation factor based on the first preset optimization coefficient to obtain an optimized flue gas dust concentration fluctuation factor; When the historical flue gas dust concentration treatment factor is greater than or equal to the first preset historical flue gas dust concentration treatment factor and less than the second preset historical flue gas dust concentration treatment factor, the emission treatment module is used to optimize the flue gas dust concentration fluctuation factor based on the second preset optimization coefficient to obtain an optimized flue gas dust concentration fluctuation factor; When the historical flue gas dust concentration treatment factor is greater than or equal to the second preset historical flue gas dust concentration treatment factor, the emission treatment module is used to optimize the flue gas dust concentration fluctuation factor based on the third preset optimization coefficient to obtain an optimized flue gas dust concentration fluctuation factor.

[0042] In this embodiment, the first preset historical flue gas dust concentration treatment factor is less than the second preset historical flue gas dust concentration treatment factor. The first preset historical flue gas dust concentration treatment factor is preferably 8, and the second preset historical flue gas dust concentration treatment factor is preferably 14. Specifically, it can also be adjusted according to the actual situation.

[0043] In this embodiment, the first preset optimization coefficient is less than the second preset optimization coefficient is less than the third preset optimization coefficient. The first preset optimization coefficient is preferably 0.9, the second preset optimization coefficient is preferably 1.1, and the second preset optimization coefficient is preferably 1.2. Specifically, it can also be adjusted according to the actual situation.

[0044] In this embodiment, the product value of the preset optimization coefficient and the flue gas dust concentration fluctuation factor is calculated to obtain an optimized flue gas dust concentration fluctuation factor.

[0045] The beneficial effects of the above technical solutions are as follows: According to the relationship between the historical flue gas dust concentration treatment factor, the first preset historical flue gas dust concentration treatment factor, and the second preset historical flue gas dust concentration treatment factor, the present invention selects a preset optimization coefficient to optimize the flue gas dust concentration fluctuation factor, and obtains an optimized flue gas dust concentration fluctuation factor, realizing the dynamic adjustment of the optimized flue gas dust concentration fluctuation factor, comprehensively considering the actual cleaning of the flue gas emission treatment concentration and the historical dust removal concentration, and further ensuring the accuracy and efficiency of the flue gas emission treatment of the thermal power generating unit.

[0046] In some embodiments of the present application, the emission treatment module is used for: The emission treatment module is used to obtain a preset factor-strategy mapping table, traverse the optimized flue gas dust concentration fluctuation factor on the factor-strategy mapping table, and determine an emission treatment strategy corresponding to the optimized flue gas dust concentration fluctuation factor.

[0047] In this embodiment, the factor-strategy mapping table is preset, and each factor corresponds to a strategy.

[0048] In this embodiment, the flue gas dust concentration treatment device is a spray tower, and the emission treatment strategy includes the time and flow rate of spraying water mist.

[0049] The beneficial effects of the above technical solution are as follows: The present invention sets an emission treatment strategy to achieve precise monitoring and dynamic regulation of the dust concentration, ensure that the emissions meet the environmental protection standards, reduce manual intervention, lower the operation and maintenance costs, ensure the safe operation of the thermal power generating unit, and improve the production efficiency.

[0050] In the description of the above embodiments, the specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0051] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention can be combined with each other in any way. The situations of these combinations are not all described in this specification only for the consideration of saving space and resources.

[0052] Those of ordinary skill in the art can understand that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, 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 flue gas emission treatment system for a thermal power generating unit, characterized in that, Including: A data determination module, configured to obtain the flue gas dust concentration data of a thermal power generating unit at multiple moments, and determine the representative flue gas dust concentration data and non-representative flue gas dust concentration data of the thermal power generating unit according to all the flue gas dust concentration data; A factor calculation module, configured to analyze all the representative flue gas dust concentration data and non-representative flue gas dust concentration data, and calculate the flue gas dust concentration fluctuation factor of the thermal power generating unit based on the analysis result; A behavior analysis module, configured to collect the historical flue gas dust concentration treatment behaviors of the thermal power generating unit, and analyze the historical flue gas dust concentration treatment behaviors to determine the historical flue gas dust concentration treatment factor of the thermal power generating unit; An emission treatment module, configured to optimize the flue gas dust concentration fluctuation factor based on the historical flue gas dust concentration treatment factor to obtain an optimized flue gas dust concentration fluctuation factor, and set an emission treatment strategy for the flue gas dust concentration treatment equipment based on the optimized flue gas dust concentration fluctuation factor.

2. The flue gas emission treatment system for a thermal power generating unit according to claim 1, wherein, The data determination module is configured to: The data determination module is configured to sort and combine all the flue gas dust concentration data based on the time sequence to obtain a flue gas dust concentration data group; The data determination module is configured to use any one of the flue gas dust concentration data in the flue gas dust concentration data group as the first flue gas dust concentration data; The data determination module is configured to preset a first quantity and a second quantity, and determine the first adjacent flue gas dust concentration data of the first flue gas dust concentration data based on the first quantity; The data determination module is configured to determine the second adjacent flue gas dust concentration data of the first flue gas dust concentration data based on the second quantity; The data determination module is configured to use the first flue gas dust concentration data, the first adjacent flue gas dust concentration data, and the second adjacent flue gas dust concentration data as a first flue gas dust concentration data group; The data determination module is configured to calculate the data representative value of the first flue gas dust concentration data based on the first flue gas dust concentration data group; When the data representative value is greater than or equal to a preset data representative value, the data determination module is configured to use the first flue gas dust concentration data as the representative flue gas dust concentration data; When the data representative value is less than the preset data representative value, the data determination module is configured to use the first flue gas dust concentration data as the non-representative flue gas dust concentration data.

3. The flue gas emission treatment system for a thermal power generating unit according to claim 2, wherein, The data determination module is configured to: The data determination module is configured to calculate the data representative value of the first flue gas dust concentration data according to the following formula: ； Among them, p is the data representative value of the first flue gas dust concentration data, u is the number of flue gas dust concentration data in the first flue gas dust concentration data group, y is the first flue gas dust concentration data, and t i is the i-th flue gas dust concentration data other than the first flue gas dust concentration data in the first flue gas dust concentration data group, is the mean value of the flue gas dust concentration data other than the i-th flue gas dust concentration data in the first flue gas dust concentration data group, is the difference between the first flue gas dust concentration data and the mean value.

4. The flue gas emission treatment system of a thermal power generating unit according to claim 1, characterized in that The factor calculation module is configured to: The factor calculation module is configured to extract the same representative flue gas dust concentration data from all the representative flue gas dust concentration data; The factor calculation module is configured to count the number of the same flue gas dust concentration data and the sum of the same flue gas dust concentration data of all the same representative flue gas dust concentration data; The factor calculation module is configured to extract the different representative flue gas dust concentration data from all the representative flue gas dust concentration data; The factor calculation module is used to count the number of different flue gas dust concentration data representing the flue gas dust concentration data and the sum value of the different flue gas dust concentration data; The factor calculation module is used to count the number of representative flue gas dust concentration data representing all flue gas dust concentration data, and count the number of non-representative flue gas dust concentration data of the non-representative flue gas dust concentration data; The factor calculation module is used to calculate the flue gas dust concentration fluctuation factor of the thermal power generating unit.

5. The flue gas emission treatment system of a thermal power generating unit according to claim 4, characterized in that, The factor calculation module is used for: The factor calculation module is used to calculate the flue gas dust concentration fluctuation factor of the thermal power generating unit according to the following formula: ； Where, w is the flue gas dust concentration fluctuation factor of the thermal power generating unit, q1 is the number of data with the same flue gas dust concentration, q2 is the number of data with different flue gas dust concentrations, a1 is the sum value of the data with the same flue gas dust concentration, a2 is the sum value of the data with different flue gas dust concentrations. When holds, then s = 0.

8. When holds, then s = 1. When holds, then s = 1.

2.

6. The flue gas emission treatment system for a thermal power generating unit according to claim 1, wherein The behavior analysis module is used for: The behavior analysis module is used to analyze the historical flue gas dust concentration treatment behavior to determine the corresponding historical flue gas dust emission concentration of each historical flue gas dust concentration treatment behavior; When the historical flue gas dust emission concentration is less than the preset historical flue gas dust emission concentration, the behavior analysis module is used to regard the corresponding historical flue gas dust concentration treatment behavior as a compliant flue gas dust concentration treatment behavior; When the historical flue gas dust emission concentration is greater than or equal to the preset historical flue gas dust emission concentration, the behavior analysis module is used to regard the corresponding historical flue gas dust concentration treatment behavior as a non-compliant flue gas dust concentration treatment behavior; The behavior analysis module is used to extract the maximum historical flue gas dust emission concentration from the compliant flue gas dust concentration treatment behaviors; The behavior analysis module is used to calculate the historical flue gas dust emission concentration deviation value between the historical flue gas dust emission concentration in the non-compliant flue gas dust concentration treatment behavior and the maximum historical flue gas dust emission concentration; The behavior analysis module is used to determine the historical flue gas dust concentration treatment factor of the thermal power generating unit according to all the historical flue gas dust emission concentration deviation values.

7. The flue gas emission treatment system for a thermal power generating unit according to claim 6, characterized in that, The behavior analysis module is used for: The behavior analysis module is used to calculate the historical flue gas dust concentration treatment factor of the thermal power generating unit according to the following formula: ； Wherein, f is the historical flue gas dust concentration treatment factor of the thermal power generation unit, g1 is the first calculation coefficient, g2 is the second calculation coefficient, g1 + g2 = 1, g2 > g1, h1 is the number of acts of non-compliant flue gas dust concentration treatment behavior, h2 is the number of acts of compliant flue gas dust concentration treatment behavior, k j is the historical flue gas dust emission concentration corresponding to the j-th non-compliant flue gas dust concentration treatment behavior, k max is the maximum historical flue gas dust emission concentration corresponding to the non-compliant flue gas dust concentration treatment behavior.

8. The flue gas emission treatment system of a thermal power generation unit according to claim 1, wherein, The emission treatment module is used for: The emission treatment module is used to preset a first preset historical flue gas dust concentration treatment factor and a second preset historical flue gas dust concentration treatment factor; The emission treatment module is used to preset a first preset optimization coefficient, a second preset optimization coefficient and a third preset optimization coefficient; When the historical flue gas dust concentration treatment factor is less than the first preset historical flue gas dust concentration treatment factor, the emission treatment module is used to optimize the flue gas dust concentration fluctuation factor based on the first preset optimization coefficient to obtain an optimized flue gas dust concentration fluctuation factor; When the historical flue gas dust concentration treatment factor is greater than or equal to the first preset historical flue gas dust concentration treatment factor and less than the second preset historical flue gas dust concentration treatment factor, the emission treatment module is used to optimize the flue gas dust concentration fluctuation factor based on the second preset optimization coefficient to obtain an optimized flue gas dust concentration fluctuation factor; The emission treatment module is configured to optimize the flue gas dust concentration fluctuation factor based on the third preset optimization coefficient when the historical flue gas dust concentration treatment factor is greater than or equal to the second preset historical flue gas dust concentration treatment factor, so as to obtain an optimized flue gas dust concentration fluctuation factor.

9. The flue gas emission treatment system of a thermal power generating unit according to claim 1, characterized in that, The emission treatment module is configured to: The emission treatment module is configured to obtain a pre-set factor-strategy mapping table, traverse the optimized flue gas dust concentration fluctuation factor on the factor-strategy mapping table, and determine an emission treatment strategy corresponding to the optimized flue gas dust concentration fluctuation factor.

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