A biochemical cooling method and system for nitrification pool for sewage treatment

Abstract

The invention belongs to the technical field of sewage treatment. The invention provides a biochemical cooling method and system for a nitrification pool for sewage treatment, comprising: based on processing and analyzing cooling data, processing to obtain a cooling uniform value, and judging whether the cooling rate in the nitrification pool is uniform; real-time monitoring and recording the occurrence time of a cooling non-uniform signal and the cooling uniform value in the non-uniform period, and processing and analyzing to obtain an adjustment demand value, and determining whether cooling optimization adjustment is performed in the nitrification pool; obtaining the generation time of the adjustment signal, processing and analyzing to obtain the cooling adjustment rate of the non-uniform sub-area, and performing comparative analysis to obtain a priority adjustment area and a non-priority adjustment area, respectively obtaining a priority adjustment coefficient corresponding to the priority adjustment area and a priority adjustment coefficient corresponding to the non-priority adjustment area, generating a priority adjustment table and a non-priority adjustment table, and cooling and adjusting the nitrification pool according to the priority adjustment table and the non-priority adjustment table, which is beneficial to improving the treatment quality of sewage.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, in particular to a biochemical cooling method and system for a nitrification pool used for sewage treatment. Background Art

[0002] A large amount of heat will be generated during the nitrification reaction. In response to this, the cooling equipment in the nitrification pool will cool it down. However, the nitrification reaction in the nitrate pool is more sensitive to its temperature. The cooling in the nitrification pool will affect the quality of the nitrification reaction. Therefore, the cooling analysis in the nitrification pool is of great significance.

[0003] A Chinese patent application with publication number CN118388029A discloses a biochemical cooling method and system for a nitrification pool for sewage treatment, including: collecting the temperature of the nitrification pool in real time during operation within a monitoring period to obtain the real-time temperature of the nitrification pool; if the time duration during which the real-time temperature of the nitrification pool is greater than the temperature threshold of the nitrification pool is greater than a preset time duration, the nitrification pool temperature is abnormal and a nitrification pool temperature verification signal is obtained; based on the nitrification pool temperature verification signal, a base value of the nitrification pool temperature within the period is obtained, and based on the base value of the nitrification pool temperature within the period, a biochemical cooling state signal of the nitrification pool is evaluated; based on the biochemical cooling reverse signal of the nitrification pool, an aeration flow deviation value of a verification subunit and a target subunit within the monitoring period is obtained, a cooling adjustment signal is obtained based on the aeration flow deviation value, and the biochemical cooling of the nitrification pool is adjusted according to the cooling adjustment signal.

[0004] In the prior art, the uneven cooling of the nitrification reaction will affect the quality of the nitrification reaction, thereby affecting the quality of sewage treatment. For example, in the nitrification tank, the cooling rates of various regions are inconsistent, resulting in inconsistent nitrification reaction temperatures in various regions, thereby affecting the final sewage treatment quality. In addition, in the prior art, there is a lack of monitoring and analysis of the uneven cooling. It is possible that the uneven cooling phenomenon occurs for a short time and is less severe, thereby leading to misjudgment of the cooling adjustment and affecting the quality of sewage treatment. Secondly, during the cooling optimization adjustment, there is a lack of analysis of the cooling rate. It is possible that an excessively fast cooling adjustment rate reduces the activity of nitrifying bacteria, thereby affecting the quality of the nitrification reaction and ultimately affecting the quality of sewage treatment.

[0005] To this end, the present invention provides a biochemical cooling method and system for a nitrification pool for sewage treatment. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a biochemical cooling method for a nitrification pool for sewage treatment, comprising:

[0008] During the nitrification cycle, the cooling data of each sub-area in the nitrification pool during cooling operation is obtained in real time, wherein the cooling data includes the cooling rate, and based on the processing and analysis of the cooling data, the sub-areas are marked to obtain the non-uniform sub-areas;

[0009] By performing quantitative analysis on the non-uniform sub-regions and deviation analysis on the cooling rate in the non-uniform sub-regions, a cooling uniformity value is obtained, and whether the cooling rate in the nitrification tank is uniform is judged according to the cooling uniformity value. If it is not uniform, a non-uniform signal is generated;

[0010] Based on the non-uniform signal, during the nitrification reaction in the nitrification tank, the occurrence time of the non-uniform signal and the cooling uniformity value in the non-uniform period are monitored and recorded in real time, and the adjustment demand value is obtained by processing and analyzing;

[0011] Determine whether to perform cooling optimization adjustment in the nitrification tank according to the adjustment demand value, and if so, generate an adjustment signal;

[0012] Based on the adjustment signal, the generation time of the adjustment signal is obtained, and the cooling adjustment rate of the non-uniform sub-area is obtained through processing and analysis. Based on the comparative analysis of the cooling adjustment rate, the non-uniform sub-area is marked to obtain the priority adjustment area and the non-priority adjustment area. The priority adjustment coefficients corresponding to the priority adjustment area and the priority adjustment coefficients corresponding to the non-priority adjustment area are obtained respectively. The priority adjustment table and the non-priority adjustment table are generated according to the priority adjustment coefficients. The cooling optimization adjustment of the nitrification pool is performed according to the priority adjustment table and the non-priority adjustment table.

[0013] As a further technical solution of the present invention, the process of marking the sub-regions is as follows:

[0014] The cooling rates in each sub-region are summed and averaged to obtain the cooling rate mean, the cooling rate in the sub-region is subtracted from the cooling rate mean, and the absolute value of the difference is taken to obtain the cooling rate deviation in the sub-region, and the cooling rate deviations in all sub-regions are summed and averaged to obtain the cooling rate mean deviation;

[0015] The cooling rate deviation in the sub-region is compared with the cooling rate mean deviation, and the sub-region is marked according to the comparison result. The specific marking process is:

[0016] If the cooling rate deviation in a sub-region is greater than the cooling rate mean deviation, the sub-region is marked as a non-uniform sub-region;

[0017] If the cooling rate deviation in a sub-region is less than or equal to the cooling rate mean deviation, the sub-region is marked as a uniform sub-region.

[0018] As a further technical solution of the present invention, the cooling uniformity value is obtained by:

[0019] The non-uniform quantity values ​​are marked as SL;

[0020] The non-uniformity value is marked as CD;

[0021] By formula: The cooling uniform value JY is obtained, wherein s1 and s2 are both preset proportional coefficients.

[0022] As a further technical solution of the present invention, the non-uniform quantity value SL is obtained in the following manner:

[0023] Count the number of non-uniform sub-regions and perform a ratio process on it with the total number of sub-regions to obtain a non-uniform number value;

[0024] The non-uniformity value CD is obtained as follows:

[0025] The cooling rate deviation of the non-uniform sub-area is obtained, and the difference is processed between it and the mean deviation of the cooling rate to obtain the relative deviation of the cooling rate. The relative deviations of the cooling rates of all the non-uniform sub-areas are summed and averaged to obtain the relative mean deviation of the cooling rate. The relative mean deviation of the cooling rate is ratioed with the mean deviation of the cooling rate to obtain the non-uniformity value.

[0026] As a further technical solution of the present invention, the method for obtaining the adjustment demand value is:

[0027] The non-uniform duration ratio SC and the cooling deviation ratio PC are processed by the formula: The adjustment demand value TJ is obtained, wherein a1 and a2 are both preset proportional coefficients.

[0028] As a further technical solution of the present invention, the non-uniform duration ratio SC and the cooling deviation ratio PC are obtained in the following manner:

[0029] During the nitrification reaction, the time of each occurrence of the cooling non-uniform signal is monitored and recorded in real time, and the sum is calculated to obtain the non-uniform time. The non-uniform time is then ratioed with the nitrification cycle to obtain the non-uniform duration ratio, which is marked as SC.

[0030] The time period when the non-uniform signal appears is marked as the non-uniform period, and all cooling average values ​​in the non-uniform period are obtained. They are respectively subjected to difference processing with the cooling average threshold to obtain the cooling average difference, and all the obtained cooling average differences are summed and averaged to obtain the cooling average difference. The cooling average difference is ratioed with the cooling average threshold to obtain the cooling deviation ratio, which is marked as PC.

[0031] A biochemical cooling system for a nitrification pool for sewage treatment, comprising:

[0032] Cooling uniform marking module: During the nitrification cycle, the cooling data of each sub-area in the nitrification pool during cooling operation is obtained in real time, wherein the cooling data includes the cooling rate value. Based on the processing and analysis of the cooling data, the sub-areas are marked to obtain the non-uniform sub-areas;

[0033] Cooling uniformity identification module: Through quantitative analysis of non-uniform sub-areas and deviation analysis of cooling rates in non-uniform sub-areas, the cooling uniformity value is obtained. According to the cooling uniformity value, it is judged whether the cooling rate in the nitrification tank is uniform. If it is not uniform, a non-uniform signal is generated;

[0034] Cooling regulation analysis module: Based on the non-uniform signal, during the nitrification reaction in the nitrification tank, the occurrence time of the cooling non-uniform signal and the cooling uniform value during the non-uniform period are monitored and recorded in real time, and the adjustment demand value is obtained through processing and analysis;

[0035] Cooling adjustment identification module: determines whether cooling optimization adjustment is performed in the nitrification tank according to the adjustment demand value, and if so, generates an adjustment signal;

[0036] Cooling adjustment processing module: based on the adjustment signal, the generation time of the adjustment signal is obtained, the cooling adjustment rate of the non-uniform sub-area is obtained through processing and analysis, and based on the comparative analysis of the cooling adjustment rate, the non-uniform sub-area is marked to obtain the priority adjustment area and the non-priority adjustment area, and the priority adjustment coefficient corresponding to the priority adjustment area and the priority adjustment coefficient corresponding to the non-priority adjustment area are obtained respectively, and the priority adjustment table and the non-priority adjustment table are generated according to the priority adjustment coefficient, and the nitrification pool is cooled and adjusted according to the priority adjustment table and the non-priority adjustment table.

[0037] The beneficial effects of the present invention are as follows:

[0038] 1. Real-time acquisition of cooling data of each sub-region within the nitrification tank during cooling operation, wherein the cooling data includes a cooling rate, based on processing and analysis of the cooling data, marking the sub-regions to obtain non-uniform sub-regions, performing quantitative analysis on the non-uniform sub-regions and performing deviation analysis on the cooling rates within the non-uniform sub-regions, and processing to obtain a cooling uniform value, judging whether the cooling rate within the nitrification tank is uniform according to the cooling uniform value, and generating a non-uniform signal if it is not uniform. When the nitrification tank is cooling, the present invention performs a uniform analysis on the cooling rates of each region within the nitrification tank, timely identifies and judges whether the cooling within the nitrification tank is uniform, and prevents the non-uniform cooling rate from causing different degrees of nitrification reaction in each region, thereby affecting the final sewage treatment quality.

[0039] 2. Based on the cooling non-uniform signal, in the process of continuing the nitrification reaction in the nitrification tank, the occurrence time of the cooling non-uniform signal and the cooling uniform value in the non-uniform period are monitored and recorded in real time, and the adjustment demand value is processed and analyzed to obtain the adjustment demand value, and it is determined whether to perform cooling optimization adjustment in the nitrification tank according to the adjustment demand value. If so, an adjustment signal is generated. The present invention determines whether to perform cooling optimization adjustment on the nitrification tank by analyzing the occurrence time of the cooling non-uniformity in the nitrification tank and the severity of the non-uniformity exceeding the threshold value, thereby improving the accuracy of cooling adjustment judgment, preventing the nitrification tank from having a short time and a light degree of cooling non-uniformity, resulting in erroneous judgment of cooling adjustment, increasing the complexity of cooling in the nitrification tank, and thus affecting the treatment quality of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described below in conjunction with the accompanying drawings.

[0041] Figure 1 is a flow chart of the steps of a biochemical cooling method for a nitrification tank for sewage treatment according to an embodiment of the present invention;

[0042] Figure 2 It is a flowchart of a biochemical cooling system for a nitrification tank used for sewage treatment according to an embodiment of the present invention. DETAILED DESCRIPTION

[0043] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0044] Example 1

[0045] like Figure 1 As shown, a biochemical cooling method for a nitrification pool for sewage treatment according to an embodiment of the present invention comprises:

[0046] Step 1: During the nitrification cycle, the cooling data of each sub-area in the nitrification pool during cooling operation is obtained in real time, wherein the cooling data includes the cooling rate, and based on the processing and analysis of the cooling data, the sub-areas are marked to obtain non-uniform sub-areas;

[0047] It should be noted that the sub-areas inside the nitrification tank are determined according to the locations of several cooling devices inside the nitrification tank, and each cooling device is responsible for the corresponding sub-area;

[0048] In some embodiments, the cooling rates in each sub-region are summed and averaged to obtain a cooling rate mean, the cooling rate value in the sub-region is differenced from the cooling rate mean, and the difference is taken as an absolute value to obtain a cooling rate deviation in the sub-region, and the cooling rate deviations in all sub-regions are summed and averaged to obtain a cooling rate mean deviation;

[0049] The cooling rate deviation in the sub-region is compared with the cooling rate mean deviation, and the sub-region is marked according to the comparison result. The specific marking process is:

[0050] If the cooling rate deviation in a sub-region is greater than the cooling rate mean deviation, the sub-region is marked as a non-uniform sub-region;

[0051] If the cooling rate deviation in a sub-region is less than or equal to the cooling rate mean deviation, the sub-region is marked as a uniform sub-region;

[0052] Step 2: By performing quantitative analysis on the non-uniform sub-areas and deviation analysis on the cooling rate in the non-uniform sub-areas, a cooling uniform value is obtained, and whether the cooling rate in the nitrification tank is uniform is judged according to the cooling uniform value. If it is not uniform, a non-uniform signal is generated;

[0053] Specifically, the number of non-uniform sub-regions is counted, and the ratio is processed with the total number of sub-regions to obtain a non-uniform number value;

[0054] The cooling rate deviation of the non-uniform sub-region is obtained, and the difference is processed between the difference and the cooling rate mean deviation to obtain the cooling rate relative deviation, and the cooling rate relative deviations of all the non-uniform sub-regions are summed up and averaged to obtain the cooling rate relative mean deviation, and the cooling rate relative mean deviation is ratioed with the cooling rate mean deviation to obtain the non-uniformity value;

[0055] The non-uniform quantity values ​​are marked as SL;

[0056] The non-uniformity value is marked as CD;

[0057] By formula: The cooling uniformity value JY is obtained, wherein s1 and s2 are both preset proportional coefficients;

[0058] It should be noted that the meaning of the cooling uniformity value JY and the purpose of obtaining it are: the cooling uniformity value JY is calculated by combining the non-uniformity value and the non-uniformity degree value, wherein the non-uniformity value reflects the number of sub-regions in the sub-region that have a large deviation from the cooling rate of the overall sub-region. The more sub-regions with large deviations, the more regions with uneven cooling rates in the nitrification pool, which means the cooling rate inside the nitrification pool is more uneven. Secondly, the non-uniformity degree value reflects the degree of deviation of the cooling rate of all sub-regions with large deviations in the sub-region compared with the cooling rate of the overall sub-region. The larger the non-uniformity degree value, the greater the deviation of the cooling rate, which means the cooling rate inside the nitrification pool is more uneven.

[0059] In some embodiments, the cooling uniformity value JY is compared with the cooling uniformity threshold, and the specific comparison process is as follows:

[0060] If the cooling uniformity value JY is greater than or equal to the cooling uniformity threshold, it means that the cooling rate in the nitrification tank is uneven, and a non-uniform signal is generated;

[0061] If the cooling uniformity value JY is less than the cooling uniformity threshold, it means that the cooling in the nitrification tank is uniform, and a uniformity signal is generated;

[0062] The technical solution of the embodiment of the present invention is: obtaining cooling data of each sub-region inside the nitrification tank in real time when the nitrification tank is cooling, wherein the cooling data includes a cooling rate, and based on processing and analyzing the cooling data, marking the sub-regions to obtain non-uniform sub-regions, and performing quantitative analysis on the non-uniform sub-regions and deviation analysis on the cooling rates in the non-uniform sub-regions to obtain cooling uniform values, and judging whether the cooling rate in the nitrification tank is uniform according to the cooling uniform value, if not, generating a non-uniform signal. When the nitrification tank is cooling, the present invention performs uniform analysis on the cooling rates of each region inside the nitrification tank, and timely identifies and judges whether the cooling in the nitrification tank is uniform, so as to prevent the uneven cooling rate from causing different degrees of nitrification reaction in each region, thereby affecting the final sewage treatment quality.

[0063] Example 2

[0064] like Figure 1 As shown, based on Example 1, a biochemical cooling method for a nitrification pool for sewage treatment according to an embodiment of the present invention comprises:

[0065] Step 3: Based on the non-uniform signal, during the nitrification reaction in the nitrification tank, the occurrence time of the cooling non-uniform signal and the cooling uniform value in the non-uniform period are monitored and recorded in real time, and the adjustment demand value is obtained by processing and analyzing;

[0066] Specifically, during the nitrification reaction, the time of each occurrence of the cooling non-uniform signal is monitored and recorded in real time, and the non-uniform time is summed to obtain the non-uniform time, and the non-uniform time is ratioed with the nitrification cycle to obtain the non-uniform duration ratio, which is marked as SC.

[0067] The time period when the non-uniform signal appears is marked as the non-uniform period, all cooling average values ​​in the non-uniform period are obtained, and the difference between them and the cooling average threshold is performed to obtain the cooling average difference, all the obtained cooling average differences are summed and averaged to obtain the cooling average difference, and the cooling average difference is ratioed with the cooling average threshold to obtain the cooling deviation ratio, which is marked as PC;

[0068] The obtained non-uniform duration ratio SC and cooling deviation ratio PC are processed by the formula: The adjustment demand value TJ is obtained, wherein a1 and a2 are both preset proportional coefficients;

[0069] It should be noted that the meaning of the adjustment demand value TJ and the purpose of obtaining it are: the adjustment demand value TJ is obtained based on the non-uniform time ratio SC and the cooling deviation ratio PC. The non-uniform time ratio SC reflects the duration of the non-uniform cooling in the nitrification pool. If the non-uniform time ratio SC is larger, it means that the non-uniform cooling in the nitrification pool is longer, and the more cooling optimization adjustment is needed. The cooling deviation ratio PC reflects the degree to which the overall non-uniformity exceeds the threshold during the period of non-uniform cooling in the nitrification pool, that is, it reflects the severity of non-uniform cooling in the nitrification pool. The larger the cooling deviation ratio PC is, the more severe the non-uniform cooling in the nitrification pool is, and the more cooling optimization adjustment is needed;

[0070] Step 4: Determine whether to perform cooling optimization adjustment in the nitrification tank according to the adjustment demand value, and if so, generate an adjustment signal;

[0071] Specifically, the adjustment requirement value TJ is compared with the adjustment requirement threshold, and the specific comparison process is as follows:

[0072] If the adjustment demand value TJ is greater than or equal to the adjustment demand threshold, it means that the nitrification pool needs to be adjusted for cooling optimization, and an adjustment signal is generated;

[0073] If the adjustment demand value TJ is less than the adjustment demand threshold, it means that the nitrification pool does not need cooling optimization adjustment, so monitoring should continue;

[0074] The technical solution of the embodiment of the present invention is: based on the non-uniform signal, in the process of continuing the nitrification reaction in the nitrification tank, the appearance time of the cooling non-uniform signal and the cooling uniform value in the non-uniform period are monitored and recorded in real time, and the adjustment demand value is processed and analyzed to obtain the adjustment demand value, and it is determined whether to perform cooling optimization adjustment in the nitrification tank according to the adjustment demand value. If so, an adjustment signal is generated. The present invention determines whether to perform cooling optimization adjustment on the nitrification tank by analyzing the appearance time of the cooling non-uniformity in the nitrification tank and the severity of the non-uniformity exceeding the threshold value, thereby improving the accuracy of the cooling adjustment judgment, preventing the nitrification tank from having a short time and a light degree of cooling non-uniformity, resulting in an erroneous judgment of the cooling adjustment, increasing the complexity of the cooling of the nitrification tank, and thus affecting the treatment quality of the sewage.

[0075] Example 3

[0076] like Figure 2 As shown, a nitrification pool biochemical cooling system for sewage treatment according to an embodiment of the present invention comprises:

[0077] Cooling uniform marking module: During the nitrification cycle, the cooling data of each sub-area in the nitrification pool during cooling operation is obtained in real time, wherein the cooling data includes the cooling rate value. Based on the processing and analysis of the cooling data, the sub-areas are marked to obtain the non-uniform sub-areas;

[0078] Cooling uniformity identification module: Through quantitative analysis of non-uniform sub-areas and deviation analysis of cooling rates in non-uniform sub-areas, the cooling uniformity value is obtained. According to the cooling uniformity value, it is judged whether the cooling rate in the nitrification tank is uniform. If it is not uniform, a non-uniform signal is generated;

[0079] Cooling regulation analysis module: Based on the non-uniform signal, during the nitrification reaction in the nitrification tank, the occurrence time of the cooling non-uniform signal and the cooling uniform value during the non-uniform period are monitored and recorded in real time, and the adjustment demand value is obtained through processing and analysis;

[0080] Cooling adjustment identification module: determines whether cooling optimization adjustment is performed in the nitrification tank according to the adjustment demand value, and if so, generates an adjustment signal;

[0081] Cooling adjustment processing module: based on the adjustment signal, the generation time of the adjustment signal is obtained, the cooling adjustment rate of the non-uniform sub-area is obtained through processing and analysis, and based on the comparative analysis of the cooling adjustment rate, the non-uniform sub-area is marked to obtain the priority adjustment area and the non-priority adjustment area, and the priority adjustment coefficient corresponding to the priority adjustment area and the priority adjustment coefficient corresponding to the non-priority adjustment area are obtained respectively, and the priority adjustment table and the non-priority adjustment table are generated according to the priority adjustment coefficient, and the nitrification pool is cooled and adjusted according to the priority adjustment table and the non-priority adjustment table.

[0082] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A biochemical cooling method for a nitrification pool for sewage treatment, characterized in that: include: During the nitrification cycle, the cooling data of each sub-area in the nitrification pool during cooling operation is obtained in real time, wherein the cooling data includes the cooling rate, and based on the processing and analysis of the cooling data, the sub-areas are marked to obtain the non-uniform sub-areas; By performing quantitative analysis on the non-uniform sub-regions and deviation analysis on the cooling rate in the non-uniform sub-regions, a cooling uniformity value is obtained, and whether the cooling rate in the nitrification tank is uniform is judged according to the cooling uniformity value. If it is not uniform, a non-uniform signal is generated; Based on the non-uniform signal, during the nitrification reaction in the nitrification tank, the occurrence time of the non-uniform signal and the cooling uniformity value in the non-uniform period are monitored and recorded in real time, and the adjustment demand value is obtained by processing and analyzing; Determine whether to perform cooling optimization adjustment in the nitrification tank according to the adjustment demand value, and if so, generate an adjustment signal; The adjustment signal is determined by the following method: The adjustment demand value TJ is compared with the adjustment demand threshold. The specific comparison process is as follows: If the adjustment demand value TJ is greater than or equal to the adjustment demand threshold, it means that the nitrification pool needs to be adjusted for cooling optimization, and an adjustment signal is generated; If the adjustment demand value TJ is less than the adjustment demand threshold, it means that the nitrification pool does not need cooling optimization adjustment, so monitoring should continue; The process of marking its sub-regions is as follows: The cooling rates in each sub-region are summed and averaged to obtain the cooling rate mean, the cooling rate in the sub-region is subtracted from the cooling rate mean, and the absolute value of the difference is taken to obtain the cooling rate deviation in the sub-region, and the cooling rate deviations in all sub-regions are summed and averaged to obtain the cooling rate mean deviation; The cooling rate deviation in the sub-region is compared with the cooling rate mean deviation, and the sub-region is marked according to the comparison result. The specific marking process is: If the cooling rate deviation in a sub-region is greater than the cooling rate mean deviation, the sub-region is marked as a non-uniform sub-region; If the cooling rate deviation in a sub-region is less than or equal to the cooling rate mean deviation, the sub-region is marked as a uniform sub-region; The cooling uniformity value is obtained as follows: The non-uniform quantity values ​​are marked as SL; The non-uniformity value is marked as CD; By formula: The cooling uniformity value JY is obtained, wherein s1 and s2 are both preset proportional coefficients; The non-uniform quantity value SL is obtained as follows: Count the number of non-uniform sub-regions and perform a ratio process on the number of non-uniform sub-regions to obtain a non-uniform number value; The non-uniformity value CD is obtained as follows: The cooling rate deviation of the non-uniform sub-region is obtained, and the difference is processed between the difference and the cooling rate mean deviation to obtain the cooling rate relative deviation, and the cooling rate relative deviations of all the non-uniform sub-regions are summed up and averaged to obtain the cooling rate relative mean deviation, and the cooling rate relative mean deviation is ratioed with the cooling rate mean deviation to obtain the non-uniformity value; The method for obtaining the adjustment demand value is as follows: The non-uniform duration ratio SC and the cooling deviation ratio PC are processed by the formula: The adjustment demand value TJ is obtained, wherein a1 and a2 are both preset proportional coefficients; The non-uniform duration ratio SC and the cooling deviation ratio PC are obtained as follows: During the nitrification reaction, the time of each occurrence of the cooling non-uniform signal is monitored and recorded in real time, and the sum is calculated to obtain the non-uniform time. The non-uniform time is then ratioed with the nitrification cycle to obtain the non-uniform duration ratio, which is marked as SC. The time period when the non-uniform signal appears is marked as the non-uniform period, and all cooling average values ​​in the non-uniform period are obtained. They are respectively subjected to difference processing with the cooling average threshold to obtain the cooling average difference, and all the obtained cooling average differences are summed and averaged to obtain the cooling average difference. The cooling average difference is ratioed with the cooling average threshold to obtain the cooling deviation ratio, which is marked as PC.

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