Method and equipment for determining working stages of multistage deodorization system and computer readable medium

Abstract

The invention discloses a method and equipment for determining the working stage number of a multi-stage deodorization system and a computer readable medium, and belongs to the technical field of environmental protection and gas separation.The determining method comprises the steps that S1, the maximum concentration value of specific pollutants in to-be-processed gas in historical data under a deodorization scene is obtained, and the maximum concentration value of the specific pollutants in the to-be-processed gas is calculated according to the maximum concentration value of the specific pollutants in the to-be-processed gas; and the maximum value Mmax of the stage number of the multi-stage deodorization system; s2, obtaining a first data set {}; s3, cutting the numerical interval (0,] into N continuously distributed concentration intervals; s4, classifying the data groups; s5, checking the minimum deodorization unit series corresponding to the concentration value which firstly reaches the emission standard in the corresponding concentrations treated by the deodorization units at all levels; S6, calculating the minimum deodorization unit series corresponding to each concentration interval; step S7, the remaining characteristic pollutants are traversed, and the steps S1 to S6 are repeated; and S8, obtaining the working stage number of the multi-stage deodorization system.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental protection and gas separation, and in particular relates to a method, a device and a computer-readable medium for determining the number of working stages of a multi-stage deodorization system. Background Art

[0002] With increasing environmental protection requirements, multi-stage deodorization systems are gaining widespread application in waste gas treatment. Prior art, such as Chinese Patent CN 119455650 A, discloses a single-tower, multi-stage biological deodorization tower with zoned spraying and a deodorization control method. This system employs an (N-1)-stage water-gas two-phase separation module between N stages of packing, combined with electric air valve adjustment. The system proposes a theoretical framework for calculating the number of biological spray stages based on inlet air volume and odor concentration. However, the patent does not specifically disclose how to quantitatively calculate the number of stages based on air volume and concentration parameters, and practical applications still rely on empirical methods.

[0003] In current routine operations, engineers typically use increasing residence times based on the concentration range of a single or two characteristic pollutants, from low to high. Different residence times correspond to different biological spray stages. For example, low concentration ranges correspond to 1-2 spray stages, while medium and high concentrations correspond to 3-4 spray stages. While this approach simplifies the design process, it has significant drawbacks: (1) Ignoring the complexity of working conditions: There are many types of pollutants in actual projects. Different projects may be dominated by pollutants with different characteristics (such as hydrogen sulfide, carbon disulfide, TVOCs, etc.), and their biodegradation kinetics are significantly different. The existing methods do not consider the correlation between the type of pollutants and the difficulty of degradation, resulting in inaccurate matching between residence time and order.

[0004] (2) Lack of correlation between odor threshold and concentration: The odor thresholds of different pollutants vary greatly. For example, the odor threshold of hydrogen sulfide is 0.5-1 ppb, while that of carbon disulfide is as high as 100-200 ppb. If Project A is mainly composed of hydrogen sulfide (5-10 ppm) and Project B is mainly composed of carbon disulfide (80-150 ppm), although the concentration of carbon disulfide in Project B is much higher than that of hydrogen sulfide in Project A, the odor concentrations of the two are similar because the odor threshold of carbon disulfide is much higher than that of hydrogen sulfide. Using the existing method to determine the working level only by odor concentration, the working levels of the two projects are the same, but the biodegradability of carbon disulfide is not as good as that of hydrogen sulfide. The residence time required for the degradation of carbon disulfide in the concentration range of 80-150 ppm to meet the emission standards is longer than the residence time required for the degradation of hydrogen sulfide in the concentration range of 5-10 ppm to meet the emission standards, resulting in Project B failing to meet the treatment standards or Project A being over-designed.

[0005] (3) Insufficient coupling of multiple factors: The existing empirical method does not integrate parameters such as pollutant concentration, odor threshold, degradation rate, and intake load, making it difficult to dynamically adapt to complex working conditions, which can easily lead to energy waste or excessive emissions.

[0006] Therefore, there is an urgent need for a method, device and computer-readable medium for determining the working stages of a multi-stage deodorization system to solve the problems of poor adaptability and low efficiency caused by single indicator determination in the existing technology, thereby improving the accuracy and economy of the biological deodorization system. Summary of the Invention

[0007] The object of the present invention is to provide a method for determining the number of working stages of a multi-stage deodorization system to solve the problems in the above-mentioned background technology.

[0008] The present invention provides the following technical solutions.

[0009] A method for determining the number of working stages of a multi-stage deodorization system, the multi-stage deodorization system comprising a first-stage deodorization unit to an M-th-stage deodorization unit connected in series, the first-stage deodorization unit being connected to an air inlet pipe, the M-th-stage deodorization unit being connected to an air outlet pipe, and the air inlet pipes for introducing the gas to be treated and the air outlet pipes for discharging the treated gas between adjacent deodorization units both being in a connected and blocked state; the method for determining the number of working stages comprising: Step S1: Obtain the maximum concentration of characteristic pollutants in the gas to be treated in the historical data under the deodorization scenario , and the maximum number of stages M of the deodorization units of the multi-stage deodorization system that meet the historical deodorization requirements max , where M max ≤M, the type of the characteristic pollutant is at least one; During the startup and debugging period, the gas to be treated is introduced from the air inlet pipe, and the gas to be treated passes through the first-stage deodorization unit to the M-stage deodorization unit in sequence and is discharged from the air outlet pipe; Step S2: For any of the characteristic pollutants, after the multi-stage deodorization system is operating stably, measure the initial concentration of the characteristic pollutant in the intake pipe in a plurality of consecutive constant time intervals δt. And the corresponding concentration after treatment by various levels of deodorization units , get the first data set , i is the number of measurements, 1≤j≤M, i, j, M are positive integers; at the same time, the concentration value that first reaches the emission standard after the corresponding concentration of each level of deodorization unit treatment in the first data set is recorded ; Step S3: The maximum concentration of characteristic pollutants in the gas to be treated As the upper limit, the value interval (0, ] is cut into N continuously distributed concentration intervals , N≥M; Step S4: Classify the data set and calculate the initial concentration of characteristic pollutants in the intake pipe during each measurement. Clustering the first data sets in the same concentration range to form a second data set; repeating the clustering operation until all first data sets are traversed; Step S5: For any second data set formed by clustering, calculate the concentration value of all first data sets that have been processed by deodorization units at all levels and that first reaches the emission standard. Corresponding minimum deodorization unit level : Repeat the calculation operation until all second data sets are traversed; Step S6, calculating the minimum number of deodorizing units corresponding to each concentration interval, including: Step S61: for the concentration range The first data sets included in the corresponding second data set are based on the concentration value of each first data set that first reaches the emission standard. As well as the concentration values Corresponding minimum deodorization unit level , calculate the probability that any deodorization unit from the first to the Mth level is the minimum deodorization unit level ,in, The number and concentration range of the j-th deodorization unit as the minimum deodorization unit level a ratio of the total number of the first data set included in the corresponding second data set; Step S62: Calculate the concentration of the characteristic pollutant that the j-th level deodorization unit can reduce to the concentration range The probability that characteristic pollutants in the treated gas meet the emission standards ,in, ; Step S63: Filter out For all deodorization units whose values ​​are greater than the preset value, the level corresponding to the deodorization unit with the smallest level value is taken as the level of the characteristic pollutant whose concentration falls within the concentration range. The number of working stages of the multi-stage deodorization system; Step S64, traverse the remaining (N-1) concentration intervals and repeat steps S61 to S63; Step S7: traverse the remaining characteristic pollutants and repeat steps S1 to S6 to end the debugging period; Step S8, start the operation period, measure the initial concentration of all characteristic pollutants in the gas to be treated in the air inlet pipe at any time, find out the concentration range corresponding to the initial concentration of each characteristic pollutant and the corresponding working level of the multi-stage deodorization system, and use the maximum value of all the working levels of the multi-stage deodorization system as the final working level of the multi-stage deodorization system for treating the gas to be treated.

[0010] Furthermore, step S6 also includes S65, merging multiple concentration intervals with the same number of working stages of the multi-stage deodorization system in step S63, and updating the concentration interval distribution in step S3.

[0011] Furthermore, before executing step S4, valid first data sets and invalid first data sets are determined according to the validity determination principle, and invalid first data sets are eliminated.

[0012] Furthermore, the validity judgment principle is that in the first data set, if the concentration sequence If the first data set is arranged in descending order, the first data set is determined to be a valid first data set; otherwise, it is an invalid first data set.

[0013] Furthermore, when there is a zero-value element in the first data set, the following method is used to determine whether the first data set is valid or invalid: (1) =0, the first data set is deemed to be an invalid first data set; (2) >0, and When there is at least one 0-valued element in the first dataset, the elements of the first dataset on the left side of the first 0-valued element are arranged in descending order, and the elements of the first dataset on the right side of the first 0-valued element are all 0-valued, then the first dataset is deemed to be a valid first dataset, otherwise it is an invalid dataset.

[0014] Furthermore, before executing step S61, the initial concentrations of the first data sets are compared. and characteristic pollutant emissions reaching standard concentration values If the initial concentration Not exceeding the concentration value of characteristic pollutant emissions reaching the standard , do not enter step S61; if the initial concentration Exceeding the concentration value of characteristic pollutant emissions reaching the standard , then go to step S5.

[0015] Furthermore, in step S1, the characteristic pollutants are any two of hydrogen sulfide, ammonia, TVOCs or odor.

[0016] Furthermore, in step S2, the δt is the time required for the gas to be processed to pass through M max The time required for the deodorization unit, the number of the plurality of constant time intervals δt corresponding to the plurality of constant time intervals δt is at least 500×M max indivual.

[0017] A computer device includes a processor and a memory; the memory stores a computer program, and the processor is configured to run the computer program to execute the above-mentioned method for determining the working stages of a multi-stage deodorization system.

[0018] A computer-readable storage medium stores a computer program, which, when executed by a computer, implements the method for determining the number of working stages of a multi-stage deodorization system.

[0019] The present invention has the following beneficial effects: 1. The present invention provides a method for determining the working stages of a multi-stage deodorization system. It can use multiple characteristic pollutants as target detection objects, break through the traditional single odor concentration judgment logic, realize dynamic matching of stages with multi-parameter coupling, significantly improve the accuracy of stage control, avoid insufficient treatment or energy waste due to differences in pollutant types, and at the same time ensure the stable and standard operation of the multi-stage deodorization system under variable working conditions.

[0020] 2. The present invention provides a method for determining the working level of a multi-stage deodorization system. The method predefines concentration intervals and calculates the minimum deodorization unit level corresponding to each concentration interval. Multiple concentration intervals with the same minimum deodorization unit level are then reversely merged to obtain a one-to-one correspondence between the new concentration intervals and the minimum deodorization unit level. This facilitates rapid feedback and matching of the corresponding theoretical working level when the gas to be treated is introduced into the system for operation.

[0021] 3. The present invention provides a computer device and computer-readable medium capable of executing a method for determining the working stages of a multi-stage deodorization system, integrating data acquisition and stage decision logic into a computer program, and realizing unmanned automatic debugging and real-time regulation of the multi-stage deodorization system. The device can quickly respond to operating condition fluctuations, automatically switch stage configurations, reduce response delays or misjudgments caused by manual intervention, significantly improve operational stability and anti-interference capabilities, and provide core technical support for the intelligent upgrade of gas deodorization processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A flow chart of the steps of a method for determining the number of working stages of a multi-stage deodorization system according to the present invention; Figure 2 This is a flow chart of step S6 of a method for determining the number of working stages of a multi-stage deodorization system according to one embodiment of the present invention; Figure 3 This is a schematic structural diagram of a multi-stage deodorization system according to one embodiment of the present invention; Figure 4 The present invention is a block diagram of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Unless otherwise defined or indicated, all professional and scientific terms used herein have the same meaning as those familiar to users skilled in the art. In addition, any methods and materials similar or equivalent to those described herein can be applied to the methods of the present invention.

[0025] It will be understood that although the terms "first," "second," and the like may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Thus, a first element may be referred to as a second element without departing from the teachings of the present disclosure.

[0026] Unless otherwise specified or limited, the terms "connected," "connected," and "connected" in this application should be understood broadly. For example, they may refer to a fixed connection, a connection through an intermediary medium, internal communication between two components, or an interaction between two components. Users of ordinary skill in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0027] It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings. The terms "inner" and "outer" are used to refer to directions toward and away from, respectively, the geometric center of a particular component. It will be understood that these terms are used herein to describe the relationship of one element, layer, or region relative to another element, layer, or region as illustrated in the accompanying drawings. These terms are intended to encompass orientations of the device in addition to those depicted in the accompanying drawings.

[0028] In one embodiment, Figure 1-2 As shown, the present invention provides a method for determining the number of working stages of a multi-stage deodorization system, wherein the multi-stage deodorization system includes a first-stage deodorization unit to an M-th-stage deodorization unit connected in series, the first-stage deodorization unit is connected to an air inlet pipe, the M-th-stage deodorization unit is connected to an air outlet pipe, and the air inlet pipes for introducing the gas to be treated and the air outlet pipes for discharging the treated gas between adjacent deodorization units are both connected and blocked. The method for determining the number of working stages includes: Step S1: Obtain the maximum concentration of characteristic pollutants in the gas to be treated in the historical data under the deodorization scenario , and the maximum number of stages M of the deodorization units of the multi-stage deodorization system that meet the historical deodorization requirements max , where M max ≤M, the type of the characteristic pollutant is at least one; During the startup and debugging period, the gas to be treated is introduced from the air inlet pipe, and the gas to be treated passes through the first-stage deodorization unit to the M-stage deodorization unit in sequence and is discharged from the air outlet pipe; Step S2: For any of the characteristic pollutants, after the multi-stage deodorization system is operating stably, measure the initial concentration of the characteristic pollutant in the intake pipe in a plurality of consecutive constant time intervals δt. And the corresponding concentration after treatment by various levels of deodorization units , get the first data set , i is the number of measurements, 1≤j≤M, i, j, M are positive integers; at the same time, the concentration value that first reaches the emission standard after the corresponding concentration of each level of deodorization unit treatment in the first data set is recorded ; Step S3: The maximum concentration of characteristic pollutants in the gas to be treated As the upper limit, the value interval (0, ] is cut into N continuously distributed concentration intervals , N≥M; Step S4: Classify the data set and calculate the initial concentration of characteristic pollutants in the intake pipe during each measurement. Clustering the first data sets in the same concentration range to form a second data set; repeating the clustering operation until all first data sets are traversed; Step S5: For any second data set formed by clustering, calculate the concentration value of all first data sets that have been processed by deodorization units at all levels and that first reaches the emission standard. Corresponding minimum deodorization unit level : Repeat the calculation operation until all second data sets are traversed; Step S6, calculating the minimum number of deodorizing units corresponding to each concentration interval, including: Step S61: for the concentration range The first data sets included in the corresponding second data set are based on the concentration value of each first data set that first reaches the emission standard. As well as the concentration values Corresponding minimum deodorization unit level , calculate the probability that any deodorization unit from the first to the Mth level is the minimum deodorization unit level ,in, The number and concentration range of the j-th deodorization unit as the minimum deodorization unit level a ratio of the total number of the first data set included in the corresponding second data set; Step S62: Calculate the concentration of the characteristic pollutant that the j-th level deodorization unit can reduce to the concentration range The probability that characteristic pollutants in the treated gas meet the emission standards ,in, ; Step S63: Filter out For all deodorization units whose values ​​are greater than the preset value, the level corresponding to the deodorization unit with the smallest level value is taken as the level of the characteristic pollutant whose concentration falls within the concentration range. The number of working stages of the multi-stage deodorization system; Step S64, traverse the remaining (N-1) concentration intervals and repeat steps S61 to S63; Step S7: traverse the remaining characteristic pollutants and repeat steps S1 to S6 to end the debugging period; Step S8, start the operation period, measure the initial concentration of all characteristic pollutants in the gas to be treated in the air inlet pipe at any time, find out the concentration range corresponding to the initial concentration of each characteristic pollutant and the corresponding working level of the multi-stage deodorization system, and use the maximum value of all the working levels of the multi-stage deodorization system as the final working level of the multi-stage deodorization system for treating the gas to be treated.

[0029] The multi-stage deodorization system includes a first-stage deodorization unit to an M-stage deodorization unit connected in series, where M ≥ 2. For example, when M = 2, the deodorization units are the first-stage deodorization unit and the second-stage deodorization unit, respectively. Adjacent deodorization units are connected by connecting pipes. The first-stage deodorization unit is equipped with an air inlet pipe for receiving the gas to be processed during operation. All deodorization units are equipped with air outlet pipes and are connected to the outside air through the air outlet pipes. The gas processed by the deodorization unit is discharged into the outside air through the corresponding air outlet pipes. The air inlet pipe, air outlet pipe, and connecting pipes can all be selectively opened and closed, and the opening and closing operations can be achieved by valves installed on the air inlet pipe, air outlet pipe, and connecting pipe.

[0030] Among them, the value interval (0, ] is cut into N continuously distributed concentration intervals , N ≥ M, for example: when cut into 3 continuously distributed concentration intervals When the concentration range The left endpoint value and concentration interval The right endpoint values ​​are equal, and the concentration range The right endpoint value and concentration range The left endpoint value is equal to that of , and the same applies to other cutting situations. The purpose of limiting the number N of concentration intervals of the continuous distribution after cutting is to improve the cutting accuracy so that the operating result of the method for determining the working stage of the multi-stage deodorization system is more accurate.

[0031] Among them, the constant time interval δt is the time when the gas to be treated passes through M max The time required for the multi-stage deodorization unit is set. This setting will ensure that each measurement is carried out under the conditions of a complete working cycle of the multi-stage deodorization system, which can ensure the initial concentration of the characteristic pollutants in the intake pipe within δt And the corresponding concentration after treatment by various levels of deodorization units According to the actual working conditions, the constant time interval δt can vary from a few seconds to tens of seconds. In addition, the number of the plurality of constant time intervals δt is at least 500×M max This setting can ensure that the data sample size of the first data set meets the statistical requirements, making the final result obtained by the method for determining the working stages of the multi-stage deodorization system more accurate.

[0032] Among them, the value interval (0, ]Equally divided into N continuously distributed concentration intervals , so that the span of each group of concentration intervals in the N concentration intervals is the same.

[0033] Among them, the concentration value of the emission standard Obtained based on the national standards for the emission of various characteristic pollutants.

[0034] Among them, in step S63, the preset value is an empirical value, which is not less than 90%, and can be selected as 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% or 100%, or any value between the above adjacent numerical points.

[0035] like Figure 3As shown, an output pipe 15 is installed at the top of each deodorizing unit 11. A connecting pipe 12 is connected to the output pipe 15 at one end and to the bottom of the deodorizing unit 11 at the next level. A motorized damper is installed on the connecting pipe 12. An outlet pipe 14 is connected to the output pipe 15 at one end and to a chimney at the other end, through which the treated gas is discharged to the outside air. A motorized damper is installed on the outlet pipe 14. When the motorized damper on the connecting pipe 12 is closed and the motorized damper on the exhaust pipe 14 is opened, the gas flowing out of the previous deodorizing unit 11 is discharged into the chimney through the exhaust pipe 14. When the motorized damper on the connecting pipe 12 is opened and the motorized damper on the exhaust pipe 14 is closed, the gas flowing out of the previous deodorizing unit 11 flows through the connecting pipe 12 into the next deodorizing unit 11. An inlet pipe 13 is connected to the bottom of the first-level deodorizing unit and is equipped with a motorized damper to control the amount of gas to be treated during operation. By controlling the working status of each electric air valve, the air inlet pipe 13, the exhaust pipe 14 and the connecting pipe 12 can be selectively opened and closed, thereby controlling the flow path and deodorization time of the desired treatment gas in the multi-stage deodorization system.

[0036] The exhaust pipe 14 of the deodorizing unit 11 at the previous level is connected to the exhaust pipe 14 of the deodorizing unit 11 at the next level via the output pipe 15 of the deodorizing unit 11 at the next level. This connects all exhaust pipes 14 into a single pipeline and connects them to the chimney through the same pipeline, optimizing the pipeline distribution. When the electric damper on the exhaust pipe 14 of one level of deodorizing unit 11 is opened and the electric damper on the connecting pipe 12 is closed, the electric dampers on the exhaust pipes 14 of all subsequent deodorizing units 11 are also opened, and the electric dampers on the connecting pipes 12 of all subsequent deodorizing units 11 are also closed, allowing gas to be discharged from the exhaust pipe 14 into the chimney without entering any subsequent deodorizing unit 11.

[0037] The deodorization unit 11 is internally provided with one or more of a microbial deodorization device, an activated carbon deodorization device or a deodorant spray module. The microbial deodorization device, the activated carbon deodorization device or the deodorant spray module can be configured using existing technology, so they will not be described here. The deodorization unit 11 can also work using other deodorization principles in the existing technology.

[0038] A monitoring instrument is installed on the air inlet pipe 13 to measure the concentration of the target object. By collecting the readings from the monitoring instrument on the air inlet pipe 13, the initial concentration of the corresponding target object can be obtained. A monitoring instrument is also installed on the connecting pipe 12 to measure the concentration of the target object. By collecting the readings from the monitoring instruments on each connecting pipe 12, the concentration of the corresponding first target object after treatment by each deodorization unit can be obtained. The monitoring instrument can be an online gas concentration meter commonly used in the art, capable of measuring the concentration of one or more characteristic pollutants.

[0039] Use Figure 3When using the multi-stage deodorization system shown in the figure, open the electric air valve of the air inlet pipe 13 of the first-stage deodorization unit, open the electric air valve of the exhaust pipe 14 of the M-stage deodorization unit and the electric air valves of all the connecting pipes 12, and close the electric air valves on the exhaust pipes 14 from the first-stage deodorization unit to the M-1-stage deodorization unit, so that the gas to be treated during debugging is discharged into the chimney after being treated by the first-stage deodorization unit to the M-stage deodorization unit.

[0040] Figure 3 A schematic diagram of a multi-stage deodorization system in one embodiment is shown. The multi-stage deodorization system may also adopt other forms of multi-stage deodorization systems in the prior art, as long as it includes multi-stage deodorization units that can be selectively activated.

[0041] As a preferred embodiment, step S6 further includes S65 , merging multiple concentration intervals with the same number of working stages of the multi-stage deodorization system in step S63 , and updating the concentration interval distribution in step S3 .

[0042] As a preferred embodiment, before executing step S4, valid first data sets and invalid first data sets are determined according to the validity judgment principle, and invalid first data sets are eliminated. Specifically, the number of valid first data sets in each concentration interval of N concentration intervals is the same or different. For example, in M max =5, take N=5, and ensure that the number of the first data set is not less than 500×M max = 2500, that is, the maximum number of valid first data sets in each concentration interval can be 500.

[0043] As a preferred embodiment, the validity judgment principle is that in the first data set, if the concentration sequence If the first data set is arranged in descending order, the first data set is determined to be a valid first data set; otherwise, it is an invalid first data set.

[0044] As a preferred embodiment, when there is a zero-value element in the first data set, the following method is used to determine whether the first data set is valid or invalid: (1) =0, the first data set is deemed to be an invalid first data set; (2) >0, and When there is at least one 0-valued element in the first dataset, the elements of the first dataset on the left side of the first 0-valued element are arranged in descending order, and the elements of the first dataset on the right side of the first 0-valued element are all 0-valued, then the first dataset is deemed to be a valid first dataset, otherwise it is an invalid dataset.

[0045] As a preferred embodiment, before executing step S61, the initial concentrations of the first data sets are compared. and characteristic pollutant emissions reaching standard concentration values If the initial concentration Not exceeding the concentration value of characteristic pollutant emissions reaching the standard , do not enter step S61; if the initial concentration Exceeding the concentration value of characteristic pollutant emissions reaching the standard , then go to step S5.

[0046] As a preferred embodiment, in step S1, the characteristic pollutants are any two of hydrogen sulfide, ammonia, TVOCs or odor.

[0047] In one embodiment, the present application provides a computer device, which is used to implement the method for determining the working stages of the multi-stage deodorization system in the above embodiment, and will not be repeated here.

[0048] Figure 4 is a structural block diagram of a computer device according to this embodiment, such as Figure 4 As shown, the computer device 2 includes: a processor 21 and a memory 22, wherein the memory 22 stores a computer program, and the processor 21 is configured to run the computer program to execute the working steps in the above-mentioned method for determining the working stages of the multi-stage deodorization system.

[0049] In addition, the computer program in the memory 22 may be implemented in the form of a software functional unit, which may be stored in a computer-readable storage medium when sold or used as an independent product.

[0050] In one embodiment, the present application provides a computer-readable storage medium having a computer program stored thereon. The computer program includes program instructions. When the program instructions are executed by a computer, the method for determining the working level of the multi-stage deodorization system is implemented.

[0051] The technical solution of this embodiment can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, and other media that can store program code.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for determining the number of working stages of a multi-stage deodorization system, wherein the multi-stage deodorization system comprises a first-stage deodorization unit to an M-th-stage deodorization unit connected in series, wherein the first-stage deodorization unit is connected to an air inlet pipe, and the M-th-stage deodorization unit is connected to an air outlet pipe. The air inlet pipes for introducing the gas to be treated and the air outlet pipes for discharging the treated gas between adjacent deodorization units are both connected and blocked. The working level determination method includes: Step S1: Obtain the maximum concentration of characteristic pollutants in the gas to be treated in the historical data under the deodorization scenario , and the maximum number of stages M of the deodorization units of the multi-stage deodorization system that meet the historical deodorization requirements max , where M max ≤M, the type of the characteristic pollutant is at least one; During the startup and debugging period, the gas to be treated is introduced from the air inlet pipe, and the gas to be treated passes through the first-stage deodorization unit to the M-stage deodorization unit in sequence and is discharged from the air outlet pipe; Step S2: For any of the characteristic pollutants, after the multi-stage deodorization system is operating stably, measure the initial concentration of the characteristic pollutant in the intake pipe in a plurality of consecutive constant time intervals δt. And the corresponding concentration after treatment by various levels of deodorization units , get the first data set , i is the number of measurements, 1≤j≤M, i, j, M are positive integers; at the same time, the concentration value that first reaches the emission standard after the corresponding concentration of each level of deodorization unit in the first data set is recorded ; Step S3: The maximum concentration of characteristic pollutants in the gas to be treated As the upper limit, the value interval (0, ] is cut into N continuously distributed concentration intervals , N≥M; Step S4: Classify the data set and calculate the initial concentration of characteristic pollutants in the intake pipe during each measurement. Clustering the first data sets in the same concentration range to form a second data set; repeating the clustering operation until all first data sets are traversed; Step S5: For any second data set formed by clustering, calculate the concentration value of all first data sets that have been processed by deodorization units at all levels and that first reaches the emission standard. Corresponding minimum deodorization unit level : Repeat the calculation operation until all second data sets are traversed; Step S6, calculating the minimum number of deodorizing units corresponding to each concentration interval, including: Step S61: for the concentration range The first data sets included in the corresponding second data set are based on the concentration value of each first data set that first reaches the emission standard. As well as the concentration values Corresponding minimum deodorization unit level , calculate the probability that any deodorization unit from the first to the Mth level is the minimum deodorization unit level ,in, The number and concentration range of the j-th deodorization unit as the minimum deodorization unit level a ratio of the total number of the first data set included in the corresponding second data set; Step S62: Calculate the concentration of the characteristic pollutant that the j-th level deodorization unit can reduce to the concentration range The probability that characteristic pollutants in the treated gas meet the emission standards ,in, ; Step S63: Filter out For all deodorization units whose values ​​are greater than the preset value, the level corresponding to the deodorization unit with the smallest level value is taken as the level of the characteristic pollutant whose concentration falls within the concentration range. The number of working stages of the multi-stage deodorization system; Step S64, traverse the remaining (N-1) concentration intervals and repeat steps S61 to S63; Step S7: traverse the remaining characteristic pollutants and repeat steps S1 to S6 to end the debugging period; Step S8, start the operation period, measure the initial concentration of all characteristic pollutants in the gas to be treated in the air inlet pipe at any time, find out the concentration range corresponding to the initial concentration of each characteristic pollutant and the corresponding working level of the multi-stage deodorization system, and use the maximum value of all the working levels of the multi-stage deodorization system as the final working level of the multi-stage deodorization system for treating the gas to be treated.

2. The method for determining the number of working stages of a multi-stage deodorization system according to claim 1, characterized in that: Step S6 further includes S65 , merging the multiple concentration intervals with the same number of working stages of the multi-stage deodorization system in step S63 , and updating the concentration interval distribution in step S3 .

3. The method for determining the number of working stages of a multi-stage deodorization system according to claim 1, characterized in that: Before executing step S4, valid first data sets and invalid first data sets are determined according to the validity determination principle, and invalid first data sets are eliminated.

4. The method for determining the number of working stages of a multi-stage deodorization system according to claim 3, characterized in that: The validity judgment principle is that in the first data set, if the concentration sequence If the first data set is arranged in descending order, the first data set is determined to be a valid first data set; otherwise, it is an invalid first data set.

5. The method for determining the number of working stages of a multi-stage deodorization system according to claim 4, characterized in that: When there is a zero-value element in the first data set, the following method is used to determine whether the first data set is valid or invalid: (1) =0, the first data set is deemed to be an invalid first data set; (2) >0, and When there is at least one 0-valued element in the first dataset, the elements of the first dataset on the left side of the first 0-valued element are arranged in descending order, and the elements of the first dataset on the right side of the first 0-valued element are all 0-valued, then the first dataset is deemed to be a valid first dataset, otherwise it is an invalid dataset.

6. The method for determining the number of working stages of a multi-stage deodorization system according to claim 1, characterized in that: Before executing step S61, compare the initial concentrations of each first data set and characteristic pollutant emissions reaching standard concentration values If the initial concentration Not exceeding the concentration value of characteristic pollutant emissions reaching the standard , do not enter step S61; if the initial concentration Exceeding the concentration value of characteristic pollutant emissions reaching the standard , then go to step S5.

7. The method for determining the number of working stages of a multi-stage deodorization system according to claim 1, characterized in that: In step S1, the characteristic pollutants are any two of hydrogen sulfide, ammonia, TVOCs or odor.

8. The method for determining the number of working stages of a multi-stage deodorization system according to claim 1, characterized in that: In step S2, the δt is the time required for the gas to be processed to pass through M max The time required for the deodorization unit, the number of the plurality of constant time intervals δt corresponding to the plurality of constant time intervals δt is at least 500×M max indivual.

9. A computer device, characterized in that: It comprises a processor and a memory; the memory stores a computer program, and the processor is configured to run the computer program to execute the method for determining the working number of the multi-stage deodorization system according to any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the method for determining the number of working stages of a multi-stage deodorization system according to any one of claims 1 to 8 is implemented.

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