A Fourier infrared gas spectroscopy online monitoring method and system

Abstract

The present invention discloses a Fourier infrared gas spectrum online monitoring method and system, the method comprising: collecting target gas, introducing the target gas into a Fourier infrared analyzer for gas sampling, and obtaining sampling results; obtaining the infrared spectrum of the target gas according to the sampling results, and determining the gas composition and concentration information in the target gas according to the preset gas mapping comparison spectrum; judging whether the target gas is safe based on the gas composition and concentration information in the target gas, and determining the warning level according to the judgment result; determining the subsequent processing method for the target gas according to the warning level, and adaptively processing the target gas according to the subsequent processing method. By using a Fourier infrared analyzer to perform gas sampling and component concentration analysis on the target gas, gas monitoring can be achieved through spectral monitoring, which improves the monitoring accuracy, scene applicability and practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of gas monitoring, and in particular to a Fourier infrared gas spectrum online monitoring method and system. Background Art

[0002] In recent years, although the problem of air pollution has been alleviated, as the requirements of environmental protection from all walks of life are getting higher and higher, air monitoring is still an industry that has attracted much attention. Real-time, rapid and accurate prediction of the leakage location, distribution range, chemical composition, concentration and other information of gaseous pollutants (gas clouds) plays a huge role in the effective prevention and control of pipeline leakage and air pollution. At present, the commonly used means of air monitoring is grid-based fixed-point monitoring, such as air monitoring stations and CEMS systems. Although some portable analyzers have appeared on the market, the detection range, detection area, and detection time efficiency in specific occasions cannot fully meet the monitoring needs, such as urban high-altitude pollution cloud monitoring, pipeline leakage monitoring that is invisible to the naked eye, high-risk pollution source emission monitoring, and long-term non-fixed point continuous monitoring of volatile organic compounds. With the development of spectroscopy and imaging technology, the combination of spectroscopy and imaging technology has made it possible to achieve long-term and large-scale monitoring of gaseous pollutant leakage and diffusion, but there is currently no stable method for gas monitoring through infrared spectroscopy. Summary of the invention

[0003] In response to the above-mentioned problems, the present invention provides a Fourier infrared gas spectroscopy online monitoring method and system to solve the problems mentioned in the background technology that some portable analyzers appearing on the market cannot fully meet the monitoring needs in terms of detection range, detection area, detection time, etc. in specific occasions, and there is currently no stable method for gas monitoring through infrared spectroscopy.

[0004] A Fourier infrared gas spectroscopy online monitoring method comprises the following steps:

[0005] Collecting target gas, introducing the target gas into a Fourier transform infrared analyzer for gas sampling, and obtaining a sampling result;

[0006] Obtain the infrared spectrum of the target gas according to the sampling result, and determine the gas composition and concentration information in the target gas according to the preset gas mapping comparison spectrum;

[0007] Determine whether the target gas is safe based on the gas composition and concentration information in the target gas, and determine the warning level based on the judgment result;

[0008] A subsequent processing method for the target gas is determined according to the warning level, and the target gas is adaptively processed according to the subsequent processing method.

[0009] Preferably, the collecting of the target gas, introducing the target gas into a Fourier transform infrared analyzer for gas sampling, and obtaining the sampling result, comprises:

[0010] collecting a target gas by a target collection method, determining an elemental composition of the target gas, and selecting a target gas introduction method based on the elemental composition;

[0011] The target gas is introduced into the airtight chamber of the Fourier transform infrared analyzer based on the target gas introduction method, the gaseous water molecules of the target gas are scanned at high frequency, and the humidity information of the target gas is determined according to the scanning result;

[0012] Setting the infrared signal sampling frequency of the Fourier infrared analyzer based on the humidity information;

[0013] The Fourier infrared analyzer is controlled to perform gas sampling on the target gas at a set infrared signal sampling frequency to obtain the sampling result.

[0014] Preferably, the step of acquiring the infrared spectrum of the target gas according to the sampling result and determining the gas composition and concentration information in the target gas according to the preset gas mapping reference spectrum includes:

[0015] Performing Fourier transform on the sampling result, and obtaining a sampling frequency domain signal of the target gas according to the transform result;

[0016] Generate an infrared spectrum of the target gas according to the sampling frequency domain signal, separate the infrared spectrum layer by layer, and obtain multiple spectrum layers;

[0017] Referencing the multiple spectrum layers according to a preset gas mapping reference spectrum, and determining the gas composition in the target gas according to the reference result;

[0018] The color depth of each spectral layer is determined, and the concentration information of each gas component in the target gas is determined based on the color depth.

[0019] Preferably, judging whether the target gas is safe based on the gas composition and concentration information in the target gas, and determining the warning level according to the judgment result, includes:

[0020] Judging whether there is toxic gas and corrosive gas in the target gas according to the gas composition and concentration information in the target gas, and obtaining the judgment result;

[0021] If the judgment result is that there are toxic gas and corrosive gas in the target gas and the sum of the amounts of the toxic gas and corrosive gas is greater than or equal to the first preset threshold, the warning level is determined to be a first-level warning;

[0022] If the sum of the amount of toxic gas and corrosive gas in the target gas is greater than or equal to the second preset threshold, the warning level is determined to be a level 2 warning;

[0023] If the sum of the amounts of toxic gas and corrosive gas in the target gas is greater than or equal to the third preset threshold, the warning level is determined to be a level three warning.

[0024] Preferably, determining a subsequent processing method for the target gas according to the warning level, and adaptively processing the target gas according to the subsequent processing method includes:

[0025] Determine the amount of harmful gas in the target gas according to the warning level, and determine the harmful gas composition in the target gas based on the gas composition in the target gas;

[0026] Obtaining diffusion characteristic parameters and hazard characteristic parameters of each harmful gas component, and determining a subsequent treatment method for the target gas according to the diffusion characteristic parameters and hazard characteristic parameters of each harmful gas component and the amount of harmful gas, wherein the subsequent treatment method includes: detoxification emission, direct emission and filtered emission;

[0027] Determine the processing steps according to the subsequent processing method, obtain multiple processing stages of the processing steps, configure the implementation equipment of each processing stage and set the working parameters of each implementation equipment;

[0028] According to the processing steps, the implementation equipment is controlled with the set working parameters to perform adaptive processing on the target gas.

[0029] A Fourier infrared gas spectroscopy online monitoring system, the system comprising:

[0030] A sampling module is used to collect target gas, introduce the target gas into a Fourier infrared analyzer for gas sampling, and obtain sampling results;

[0031] A determination module, used to obtain the infrared spectrum of the target gas according to the sampling result, and determine the gas composition and concentration information in the target gas according to the preset gas mapping comparison spectrum;

[0032] A judgment module, used to judge whether the target gas is safe based on the gas composition and concentration information in the target gas, and determine the warning level according to the judgment result;

[0033] The processing module is used to determine a subsequent processing method for the target gas according to the warning level, and adaptively process the target gas according to the subsequent processing method.

[0034] Preferably, the sampling module comprises:

[0035] A selection submodule, for collecting a target gas by a target collection method, determining an elemental composition of the target gas, and selecting a target gas introduction method based on the elemental composition;

[0036] A determination submodule, used to introduce the target gas into the airtight chamber of the Fourier transform infrared analyzer based on the target gas introduction method, perform a high frequency scan of gaseous water molecules on the target gas, and determine the humidity information of the target gas according to the scanning result;

[0037] A setting submodule, used for setting the infrared signal sampling frequency of the Fourier infrared analyzer based on the humidity information;

[0038] The sampling submodule is used to control the Fourier infrared analyzer to perform gas sampling on the target gas at a set infrared signal sampling frequency to obtain the sampling result.

[0039] Preferably, the determining module includes:

[0040] An acquisition submodule, used for performing Fourier transform on the sampling result, and acquiring a sampling frequency domain signal of the target gas according to the transformation result;

[0041] A generating submodule, used for generating an infrared spectrum of the target gas according to the sampling frequency domain signal, and separating the infrared spectrum layer by layer to obtain multiple spectrum layers;

[0042] A first determination submodule is used to refer the multiple spectrum layers according to a preset gas mapping reference spectrum, and determine the gas composition in the target gas according to the reference result;

[0043] The second determination submodule is used to determine the color depth of each spectral layer, and determine the concentration information of each gas component in the target gas according to the color depth.

[0044] Preferably, the judging module comprises:

[0045] The judgment submodule is used to judge whether there are toxic gases and corrosive gases in the target gas according to the gas composition and concentration information in the target gas, and obtain the judgment result;

[0046] A third determination submodule is used to determine the warning level as a first-level warning if the judgment result is that there are toxic gas and corrosive gas in the target gas and the sum of the amounts of the toxic gas and corrosive gas is greater than or equal to a first preset threshold;

[0047] A fourth determination submodule, configured to determine that the warning level is a level 2 warning if the sum of the amount of toxic gas and corrosive gas in the target gas is greater than or equal to a second preset threshold;

[0048] The fifth determination submodule is used to determine that the warning level is a third-level warning if the sum of the amounts of toxic gas and corrosive gas in the target gas is greater than or equal to a third preset threshold.

[0049] Preferably, the processing module comprises:

[0050] a sixth determination submodule, for determining the amount of harmful gas in the target gas according to the warning level, and determining the harmful gas composition in the target gas based on the gas composition in the target gas;

[0051] The seventh determination submodule is used to obtain the diffusion characteristic parameters and the hazard characteristic parameters of each harmful gas component, and determine the subsequent treatment method for the target gas according to the diffusion characteristic parameters and the hazard characteristic parameters of each harmful gas component and the amount of harmful gas, wherein the subsequent treatment method includes: detoxification emission, direct emission and filtered emission;

[0052] A configuration submodule is used to determine the processing steps according to the subsequent processing method, obtain multiple processing stages of the processing steps, configure the implementation equipment of each processing stage and set the working parameters of each implementation equipment;

[0053] The processing submodule is used to control the implementation equipment to perform adaptive processing on the target gas according to the processing steps and the set working parameters.

[0054] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0055] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0057] Figure 1 A flowchart of a Fourier infrared gas spectroscopy online monitoring method provided by the present invention;

[0058] Figure 2 Another working flow chart of the Fourier transform infrared gas spectroscopy online monitoring method provided by the present invention;

[0059] Figure 3 Another working flow chart of a Fourier transform infrared gas spectroscopy online monitoring method provided by the present invention;

[0060] Figure 4 A schematic diagram of the structure of a Fourier infrared gas spectroscopy online monitoring system provided by the present invention;

[0061] Figure 5 A schematic diagram of the structure of a sampling module in a Fourier transform infrared gas spectroscopy online monitoring system provided by the present invention;

[0062] Figure 6 This is a structural schematic diagram of a processing module in a Fourier transform infrared gas spectroscopy online monitoring system provided by the present invention. DETAILED DESCRIPTION

[0063] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0064] In recent years, although the problem of air pollution has been alleviated, as the requirements of all sectors of society for environmental protection are getting higher and higher, air monitoring is still an industry that attracts much attention. Real-time, fast and accurate prediction of the leakage location, distribution range, chemical composition, concentration and other information of gaseous pollutants (gas cloud) plays a huge role in the effective prevention and control of pipeline leakage and air pollution. At present, the commonly used means in air monitoring is grid fixed-point monitoring, such as air monitoring stations and CEMS systems. Although some portable analyzers have appeared on the market, the detection range, detection area, detection time efficiency, etc. in specific occasions cannot fully meet the monitoring needs, such as urban high-altitude pollution gas cloud monitoring, pipeline leakage monitoring invisible to the naked eye, high-risk pollution source emission monitoring, long-term non-fixed point continuous monitoring of volatile organic compounds, etc. With the development of spectroscopy and imaging technology, the technology of combining spectroscopy and imaging provides the possibility of long-term and large-scale monitoring of gaseous pollutant leakage and diffusion, but there is no stable method for gas monitoring by infrared spectroscopy. In order to solve the above problems, the present embodiment discloses a Fourier infrared gas spectroscopy online monitoring method.

[0065] A Fourier infrared gas spectroscopy online monitoring method, such as Figure 1 As shown, the following steps are included:

[0066] Step S101, collecting target gas, introducing the target gas into a Fourier transform infrared analyzer for gas sampling, and obtaining a sampling result;

[0067] Step S102, obtaining the infrared spectrum of the target gas according to the sampling result, and determining the gas composition and concentration information in the target gas according to the preset gas mapping comparison spectrum;

[0068] Step S103: judging whether the target gas is safe based on the gas composition and concentration information in the target gas, and determining the warning level according to the judgment result;

[0069] Step S104: determining a subsequent processing method for the target gas according to the warning level, and adaptively processing the target gas according to the subsequent processing method.

[0070] In this embodiment, the target gas is represented as the mixed gas to be analyzed;

[0071] In this embodiment, the infrared spectrum is represented by the infrared spectrum presented by the target gas after being analyzed by a Fourier infrared analyzer;

[0072] In this embodiment, the warning level indicates that if toxic gas exists in the target gas, the warning level is determined according to the toxicity level of the toxic gas.

[0073] The working principle of the above technical solution is: collect the target gas, introduce the target gas into the Fourier infrared analyzer for gas sampling, and obtain the sampling results; obtain the infrared spectrum of the target gas according to the sampling results, and determine the gas composition and concentration information in the target gas according to the preset gas mapping comparison spectrum; judge whether the target gas is safe based on the gas composition and concentration information in the target gas, and determine the warning level according to the judgment result; determine the subsequent processing method for the target gas according to the warning level, and adaptively process the target gas according to the subsequent processing method.

[0074] The beneficial effects of the above technical solution are: by using a Fourier infrared analyzer to perform gas sampling and component concentration analysis on the target gas, gas monitoring can be achieved through spectral monitoring, which improves the monitoring accuracy, scene applicability and practicality. Furthermore, by determining whether there are safety hazards in the target gas and then selectively dealing with it, the safe handling of the target gas can be guaranteed, leakage can be avoided, and safety can be improved. This solves the problem of some portable analyzers on the market mentioned in the prior art, whose detection range, detection area, detection time, etc. in specific occasions cannot fully meet the monitoring needs. At present, there is no stable gas monitoring through infrared spectroscopy.

[0075] In one embodiment, Figure 2 As shown, the target gas is collected, the target gas is introduced into a Fourier infrared analyzer for gas sampling, and a sampling result is obtained, including:

[0076] Step S201, collecting target gas by a target collection method, determining the element composition of the target gas, and selecting a target gas introduction method based on the element composition;

[0077] Step S202, introducing the target gas into the airtight chamber of the Fourier transform infrared analyzer based on the target gas introduction method, performing a high frequency scan of gaseous water molecules on the target gas, and determining humidity information of the target gas according to the scanning result;

[0078] Step S203, setting the infrared signal sampling frequency of the Fourier infrared analyzer based on the humidity information;

[0079] Step S204: Control the Fourier infrared analyzer to perform gas sampling on the target gas at the set infrared signal sampling frequency to obtain the sampling result.

[0080] In this embodiment, the target collection method refers to the collection method for the target gas, which can be test tube collection, extraction collection, etc.;

[0081] In this embodiment, the elemental composition is represented by the chemical element composition of the target gas;

[0082] In this embodiment, the target gas introduction method is represented by an introduction method of introducing the target gas into the airtight chamber of the Fourier transform infrared analyzer;

[0083] In this embodiment, the high-frequency scanning of gaseous water molecules means scanning of gaseous water molecules at a high frequency during the process of introducing the target gas into the airtight chamber of the Fourier transform infrared analyzer;

[0084] In this embodiment, the humidity information is represented by pre-gaseous humidity detection information of the target gas.

[0085] The beneficial effects of the above technical solution are: by determining the target gas introduction method, it can be ensured that the target gas is completely transported to the airtight chamber of the Fourier infrared analyzer, thereby improving stability and reliability. Furthermore, by setting the sampling signal frequency according to the humidity information of the target gas, the influence of water molecules on infrared signal sampling can be overcome, thereby ensuring the precision and accuracy of the sampling data, laying the foundation for subsequent component analysis, and further improving practicality.

[0086] In this embodiment, the target gas introduction method is selected based on the element composition, including:

[0087] Determine the gas items that may exist in the target gas based on the element composition, and obtain the type and diffusion information of each gas item;

[0088] A non-constant diffusion model for each gas entry is constructed according to the type information and diffusion information of each gas entry;

[0089] Determine the diffusion distribution parameters of each gas entry at different ratios based on a non-constant diffusion model for the gas entry;

[0090] Determine the leakage hazard index of each gas item according to the diffusion distribution parameters of each gas item at different proportions and the density information of the gas item;

[0091] Determine the sealing introduction level for each gas item according to the leakage hazard index of the gas item;

[0092] Determine the leakage inducing factors and introduction interference factors of each gas according to the sealing introduction level for each gas item;

[0093] Detect the molecular motion of the target gas and determine the cross-sensitivity index of the target gas based on the molecular motion;

[0094] A gas introduction model for the gas entry is constructed according to the cross-sensitivity index of the target gas and the leakage inducing factors and introduction interference factors of each gas;

[0095] Input the parameter information of the target gas into the gas import model of each gas entry to obtain the model output result;

[0096] determining an introduction condition parameter for each gas entry according to a model output result of a gas introduction model for each gas entry;

[0097] Integrate the import condition parameters of all gas items, and determine the comprehensive import conditions based on the integration results;

[0098] According to the comprehensive introduction conditions, an appropriate target gas introduction method is selected from multiple preset gas introduction methods.

[0099] In this embodiment, the gas entry is represented by the gas name entry composed of various elements, such as carbon dioxide, nitric oxide, etc.;

[0100] In this embodiment, the category information is represented by the category to which each gas item belongs, for example: colorless and odorless gas, colored and odorless gas, etc.;

[0101] In this embodiment, the diffusion information is represented by the diffusion characteristic information of each gas item in the air environment;

[0102] In this embodiment, the non-constant diffusion model is represented as a diffusion model under non-constant limiting conditions for each gas entry;

[0103] In this embodiment, the diffusion distribution parameter is expressed as the diffusion area distribution parameter of each gas item at different proportions in air;

[0104] In this embodiment, the leakage hazard index represents the hazard index of the gas corresponding to each gas entry leaking into the air environment;

[0105] In this embodiment, the leakage inducing factors are represented by the operation of each gas item during the introduction process and the external leakage inducing factors;

[0106] In this embodiment, the import interference factor represents the interference factor that affects the import efficiency and quality of each gas item during the import process;

[0107] In this embodiment, the cross-sensitivity index is expressed as a gas sensitivity instability index when multiple mixed gases exist in the target gas;

[0108] In this embodiment, the import condition parameters are represented by the limiting condition description parameters of each gas item corresponding to the gas when it is introduced into the airtight chamber.

[0109] The beneficial effects of the above technical solution are: by predicting all possible gases based on the elemental composition of the target gas and then selecting the final method of introducing the target gas, the complete introduction of the target gas into the airtight chamber can be maximized, thereby improving the introduction stability and reliability. Furthermore, by determining the introduction conditions of each gas item and then comprehensively determining the introduction conditions of the target gas, the safe and complete introduction of all gas components in the target gas can be further achieved, thereby further improving stability, reliability and practicality.

[0110] In one embodiment, the step of acquiring the infrared spectrum of the target gas according to the sampling result and determining the gas composition and concentration information in the target gas according to the preset gas mapping reference spectrum includes:

[0111] Performing Fourier transform on the sampling result, and obtaining a sampling frequency domain signal of the target gas according to the transform result;

[0112] Generate an infrared spectrum of the target gas according to the sampling frequency domain signal, separate the infrared spectrum layer by layer, and obtain multiple spectrum layers;

[0113] Referencing the multiple spectrum layers according to a preset gas mapping reference spectrum, and determining the gas composition in the target gas according to the reference result;

[0114] The color depth of each spectral layer is determined, and the concentration information of each gas component in the target gas is determined based on the color depth.

[0115] The beneficial effects of the above technical solution are as follows: by utilizing a reference comparison method, the gas components in the target gas can be quickly and accurately evaluated based on the spectral display parameters, thereby improving the evaluation efficiency and accuracy; further, by determining the concentration information of each gas component based on the color depth of the spectral layer, the concentration of each gas component can be quickly and accurately determined by the absorption characteristics of the infrared sampling signal for the gas component, thereby further improving work efficiency.

[0116] In one embodiment, judging whether the target gas is safe based on the gas composition and concentration information in the target gas, and determining the warning level according to the judgment result, includes:

[0117] Judging whether there is toxic gas and corrosive gas in the target gas according to the gas composition and concentration information in the target gas, and obtaining the judgment result;

[0118] If the judgment result is that there are toxic gas and corrosive gas in the target gas and the sum of the amounts of the toxic gas and corrosive gas is greater than or equal to the first preset threshold, the warning level is determined to be a first-level warning;

[0119] If the sum of the amount of toxic gas and corrosive gas in the target gas is greater than or equal to the second preset threshold, the warning level is determined to be a level 2 warning;

[0120] If the sum of the amounts of toxic gas and corrosive gas in the target gas is greater than or equal to the third preset threshold, the warning level is determined to be a level three warning.

[0121] The beneficial effects of the above technical solution are: by determining the amount of toxic gas and corrosive gas based on the judgment result and then performing different levels of early warning work, it is possible to quickly warn of harmful gases in the target gas and subsequently take different levels of response measures, thereby further improving safety. At the same time, it also effectively evaluates the hazards of the target gas and improves practicality.

[0122] In one embodiment, Figure 3 As shown, a subsequent processing method for the target gas is determined according to the warning level, and the target gas is adaptively processed according to the subsequent processing method, including:

[0123] Step S301, determining the amount of harmful gas in the target gas according to the warning level, and determining the harmful gas composition in the target gas based on the gas composition in the target gas;

[0124] Step S302, obtaining diffusion characteristic parameters and hazard characteristic parameters of each harmful gas component, and determining a subsequent treatment method for the target gas according to the diffusion characteristic parameters and hazard characteristic parameters of each harmful gas component and the amount of harmful gas, wherein the subsequent treatment method includes: detoxification emission, direct emission and filtered emission;

[0125] Step S303, determining the processing steps according to the subsequent processing method, obtaining multiple processing stages of the processing steps, configuring the implementation equipment of each processing stage and setting the working parameters of each implementation equipment;

[0126] Step S304: According to the processing steps, the implementation equipment is controlled to perform adaptive processing on the target gas with the set working parameters.

[0127] In this embodiment, the amount of harmful gas is expressed as the number of types of harmful gas in the target gas;

[0128] In this embodiment, the diffusion characteristic parameters are expressed as descriptive parameters of the diffusion range and diffusion frequency characteristics of each harmful gas component in the atmosphere;

[0129] In this embodiment, the hazard characteristic parameter is represented by a unified description parameter of the hazard index of each harmful gas in the atmosphere to the environment and personnel;

[0130] In this embodiment, the processing stage is represented by dividing the processing steps into multiple processing stages according to the operation sequence and the operation index.

[0131] The beneficial effects of the above technical solution are: by determining the subsequent treatment method for the target gas based on the diffusion characteristic parameters, hazard characteristic parameters and the amount of harmful gas of each harmful gas component, the treatment measures can be guaranteed to be more rigorous and practical, further improving safety. Furthermore, by configuring the implementation equipment of the treatment stage, the target gas can be treated more strictly to avoid leakage, further improving safety and stability.

[0132] In one embodiment, this embodiment also discloses a Fourier infrared gas spectroscopy online monitoring system, such as Figure 4 As shown, the system includes:

[0133] The sampling module 401 is used to collect the target gas, introduce the target gas into the Fourier infrared analyzer for gas sampling, and obtain the sampling result;

[0134] A determination module 402 is used to obtain an infrared spectrum of the target gas according to the sampling result, and determine the gas composition and concentration information in the target gas according to a preset gas mapping reference spectrum;

[0135] A judgment module 403 is used to judge whether the target gas is safe based on the gas composition and concentration information in the target gas, and determine the warning level according to the judgment result;

[0136] The processing module 404 is used to determine a subsequent processing method for the target gas according to the warning level, and perform adaptive processing on the target gas according to the subsequent processing method.

[0137] The working principle of the above technical solution is: first, the target gas is collected by using the sampling module, and the target gas is introduced into the Fourier infrared analyzer for gas sampling to obtain the sampling results; secondly, the infrared spectrum of the target gas is obtained according to the sampling results through the determination module, and the gas composition and concentration information in the target gas is determined according to the preset gas mapping reference spectrum; then, the judgment module is used to judge whether the target gas is safe based on the gas composition and concentration information in the target gas, and the warning level is determined according to the judgment result; finally, the processing module is used to determine the subsequent processing method for the target gas according to the warning level, and the target gas is adaptively processed according to the subsequent processing method.

[0138] The beneficial effects of the above technical solution are as follows: by utilizing a Fourier transform infrared analyzer to perform gas sampling and component concentration analysis on the target gas, gas monitoring can be achieved through spectral monitoring, thereby improving monitoring accuracy, scenario applicability and practicality. Furthermore, by determining whether there are safety hazards in the target gas and then selectively handling it, the safe handling of the target gas can be guaranteed, leakage can be avoided, and safety can be improved.

[0139] In one embodiment, Figure 5 As shown, the sampling module 401 includes:

[0140] A selection submodule 4011 is used to collect the target gas through a target collection method, determine the element composition of the target gas, and select a target gas introduction method based on the element composition;

[0141] The determination submodule 4012 is used to introduce the target gas into the airtight chamber of the Fourier transform infrared analyzer based on the target gas introduction method, perform high-frequency scanning of gaseous water molecules on the target gas, and determine the humidity information of the target gas according to the scanning result;

[0142] A setting submodule 4013 is used to set the infrared signal sampling frequency of the Fourier infrared analyzer based on the humidity information;

[0143] The sampling submodule 4014 is used to control the Fourier infrared analyzer to perform gas sampling on the target gas at a set infrared signal sampling frequency to obtain the sampling result.

[0144] The beneficial effects of the above technical solution are: by determining the target gas introduction method, it can be ensured that the target gas is completely transported to the airtight chamber of the Fourier infrared analyzer, thereby improving stability and reliability. Furthermore, by setting the sampling signal frequency according to the humidity information of the target gas, the influence of water molecules on infrared signal sampling can be overcome, thereby ensuring the precision and accuracy of the sampling data, laying the foundation for subsequent component analysis, and further improving practicality.

[0145] In one embodiment, the determining module includes:

[0146] An acquisition submodule, used for performing Fourier transform on the sampling result, and acquiring a sampling frequency domain signal of the target gas according to the transformation result;

[0147] A generating submodule, used for generating an infrared spectrum of the target gas according to the sampling frequency domain signal, and separating the infrared spectrum layer by layer to obtain multiple spectrum layers;

[0148] A first determination submodule is used to refer the multiple spectrum layers according to a preset gas mapping reference spectrum, and determine the gas composition in the target gas according to the reference result;

[0149] The second determination submodule is used to determine the color depth of each spectral layer, and determine the concentration information of each gas component in the target gas according to the color depth.

[0150] The beneficial effects of the above technical solution are as follows: by utilizing a reference comparison method, the gas components in the target gas can be quickly and accurately evaluated based on the spectral display parameters, thereby improving the evaluation efficiency and accuracy; further, by determining the concentration information of each gas component based on the color depth of the spectral layer, the concentration of each gas component can be quickly and accurately determined by the absorption characteristics of the infrared sampling signal for the gas component, thereby further improving work efficiency.

[0151] In one embodiment, the determination module includes:

[0152] The judgment submodule is used to judge whether there are toxic gases and corrosive gases in the target gas according to the gas composition and concentration information in the target gas, and obtain the judgment result;

[0153] A third determination submodule is used to determine the warning level as a first-level warning if the judgment result is that there are toxic gas and corrosive gas in the target gas and the sum of the amounts of the toxic gas and corrosive gas is greater than or equal to a first preset threshold;

[0154] A fourth determination submodule, configured to determine that the warning level is a level 2 warning if the sum of the amount of toxic gas and corrosive gas in the target gas is greater than or equal to a second preset threshold;

[0155] The fifth determination submodule is used to determine that the warning level is a third-level warning if the sum of the amounts of toxic gas and corrosive gas in the target gas is greater than or equal to a third preset threshold.

[0156] The beneficial effects of the above technical solution are: by determining the amount of toxic gas and corrosive gas based on the judgment result and then performing different levels of early warning work, it is possible to quickly warn of harmful gases in the target gas and subsequently take different levels of response measures, thereby further improving safety. At the same time, it also effectively evaluates the hazards of the target gas and improves practicality.

[0157] In one embodiment, Figure 6 As shown, the processing module 404 includes:

[0158] The sixth determination submodule 4041 is used to determine the amount of harmful gas in the target gas according to the warning level, and determine the harmful gas composition in the target gas based on the gas composition in the target gas;

[0159] The seventh determination submodule 4042 is used to obtain the diffusion characteristic parameters and the hazard characteristic parameters of each harmful gas component, and determine the subsequent treatment method for the target gas according to the diffusion characteristic parameters and the hazard characteristic parameters of each harmful gas component and the amount of harmful gas, wherein the subsequent treatment method includes: detoxification emission, direct emission and filtered emission;

[0160] Configuration submodule 4043, used to determine the processing steps according to the subsequent processing mode, obtain multiple processing stages of the processing steps, configure the implementation equipment of each processing stage and set the working parameters of each implementation equipment;

[0161] The processing submodule 4044 is used to control the implementation equipment to perform adaptive processing on the target gas according to the processing steps and the set working parameters.

[0162] The beneficial effects of the above technical solution are: by determining the subsequent treatment method for the target gas based on the diffusion characteristic parameters, hazard characteristic parameters and the amount of harmful gas of each harmful gas component, the treatment measures can be guaranteed to be more rigorous and practical, further improving safety. Furthermore, by configuring the implementation equipment of the treatment stage, the target gas can be treated more strictly to avoid leakage, further improving safety and stability.

[0163] Those skilled in the art should understand that the first and second in the present invention merely refer to different application stages.

[0164] Other embodiments of the present disclosure will be readily apparent to those skilled in the art after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0165] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A Fourier infrared gas spectroscopy online monitoring method, characterized in that: The following steps are involved: Collecting target gas, introducing the target gas into a Fourier transform infrared analyzer for gas sampling, and obtaining a sampling result; Obtain the infrared spectrum of the target gas according to the sampling result, and determine the gas composition and concentration information in the target gas according to the preset gas mapping comparison spectrum; Determine whether the target gas is safe based on the gas composition and concentration information in the target gas, and determine the warning level based on the judgment result; Determine the subsequent processing method for the target gas according to the warning level, and perform adaptive processing on the target gas according to the subsequent processing method; including: Determine the amount of harmful gas in the target gas according to the warning level, and determine the harmful gas composition in the target gas based on the gas composition in the target gas; Obtaining diffusion characteristic parameters and hazard characteristic parameters of each harmful gas component, and determining a subsequent treatment method for the target gas according to the diffusion characteristic parameters and hazard characteristic parameters of each harmful gas component and the amount of harmful gas, wherein the subsequent treatment method includes: detoxification emission, direct emission and filtered emission; Determine the processing steps according to the subsequent processing method, obtain multiple processing stages of the processing steps, configure the implementation equipment of each processing stage and set the working parameters of each implementation equipment; According to the processing steps, the implementation equipment is controlled with the set working parameters to perform adaptive processing on the target gas.

2. The Fourier transform infrared gas spectroscopy online monitoring method according to claim 1, characterized in that: The collecting of the target gas, introducing the target gas into a Fourier transform infrared analyzer for gas sampling, and obtaining a sampling result, comprises: collecting a target gas by a target collection method, determining an elemental composition of the target gas, and selecting a target gas introduction method based on the elemental composition; The target gas is introduced into the airtight chamber of the Fourier transform infrared analyzer based on the target gas introduction method, the gaseous water molecules of the target gas are scanned at high frequency, and the humidity information of the target gas is determined according to the scanning result; Setting the infrared signal sampling frequency of the Fourier infrared analyzer based on the humidity information; The Fourier infrared analyzer is controlled to perform gas sampling on the target gas at a set infrared signal sampling frequency to obtain the sampling result.

3. The Fourier transform infrared gas spectroscopy online monitoring method according to claim 1, characterized in that: The step of obtaining the infrared spectrum of the target gas according to the sampling result and determining the gas composition and concentration information in the target gas according to the preset gas mapping comparison spectrum includes: Performing Fourier transform on the sampling result, and obtaining a sampling frequency domain signal of the target gas according to the transform result; Generate an infrared spectrum of the target gas according to the sampling frequency domain signal, separate the infrared spectrum layer by layer, and obtain multiple spectrum layers; Referencing the multiple spectrum layers according to a preset gas mapping reference spectrum, and determining the gas composition in the target gas according to the reference result; The color depth of each spectral layer is determined, and the concentration information of each gas component in the target gas is determined based on the color depth.

4. The Fourier transform infrared gas spectroscopy online monitoring method according to claim 1, characterized in that: The step of judging whether the target gas is safe based on the gas composition and concentration information in the target gas and determining the warning level according to the judgment result includes: Judging whether there is toxic gas and corrosive gas in the target gas according to the gas composition and concentration information in the target gas, and obtaining the judgment result; If the judgment result is that there are toxic gas and corrosive gas in the target gas and the sum of the amounts of the toxic gas and corrosive gas is greater than or equal to the first preset threshold, the warning level is determined to be a first-level warning; If the sum of the amount of toxic gas and corrosive gas in the target gas is greater than or equal to the second preset threshold, the warning level is determined to be a level 2 warning; If the sum of the amounts of toxic gas and corrosive gas in the target gas is greater than or equal to the third preset threshold, the warning level is determined to be a level three warning.

5. A Fourier infrared gas spectroscopy online monitoring system, characterized in that: The system includes: A sampling module is used to collect target gas, introduce the target gas into a Fourier transform infrared analyzer for gas sampling, and obtain sampling results; A determination module, used to obtain the infrared spectrum of the target gas according to the sampling result, and determine the gas composition and concentration information in the target gas according to the preset gas mapping comparison spectrum; A judgment module, used to judge whether the target gas is safe based on the gas composition and concentration information in the target gas, and determine the warning level according to the judgment result; A processing module is used to determine a subsequent processing method for the target gas according to the warning level, and adaptively process the target gas according to the subsequent processing method; the processing module includes: a sixth determination submodule, for determining the amount of harmful gas in the target gas according to the warning level, and determining the harmful gas composition in the target gas based on the gas composition in the target gas; The seventh determination submodule is used to obtain the diffusion characteristic parameters and the hazard characteristic parameters of each harmful gas component, and determine the subsequent treatment method for the target gas according to the diffusion characteristic parameters and the hazard characteristic parameters of each harmful gas component and the amount of harmful gas, wherein the subsequent treatment method includes: detoxification emission, direct emission and filtered emission; A configuration submodule is used to determine the processing steps according to the subsequent processing method, obtain multiple processing stages of the processing steps, configure the implementation equipment of each processing stage and set the working parameters of each implementation equipment; The processing submodule is used to control the implementation equipment to perform adaptive processing on the target gas according to the processing steps and the set working parameters.

6. The Fourier transform infrared gas spectroscopy online monitoring system according to claim 5, characterized in that: The sampling module comprises: A selection submodule, for collecting a target gas by a target collection method, determining an elemental composition of the target gas, and selecting a target gas introduction method based on the elemental composition; A determination submodule, used to introduce the target gas into the airtight chamber of the Fourier transform infrared analyzer based on the target gas introduction method, perform a high frequency scan of gaseous water molecules on the target gas, and determine the humidity information of the target gas according to the scanning result; A setting submodule, used to set the infrared signal sampling frequency of the Fourier infrared analyzer based on the humidity information; The sampling submodule is used to control the Fourier infrared analyzer to perform gas sampling on the target gas at a set infrared signal sampling frequency to obtain the sampling result.

7. The Fourier transform infrared gas spectroscopy online monitoring system according to claim 5, characterized in that: The determining module comprises: An acquisition submodule, used for performing Fourier transform on the sampling result, and acquiring a sampling frequency domain signal of the target gas according to the transform result; A generating submodule, used for generating an infrared spectrum of the target gas according to the sampling frequency domain signal, and separating the infrared spectrum layer by layer to obtain multiple spectrum layers; A first determination submodule is used to refer the multiple spectrum layers according to a preset gas mapping reference spectrum, and determine the gas composition in the target gas according to the reference result; The second determination submodule is used to determine the color depth of each spectral layer, and determine the concentration information of each gas component in the target gas according to the color depth.

8. The Fourier transform infrared gas spectroscopy online monitoring system according to claim 5, characterized in that: The judging module comprises: The judgment submodule is used to judge whether there are toxic gases and corrosive gases in the target gas according to the gas composition and concentration information in the target gas, and obtain the judgment result; A third determination submodule is used to determine the warning level as a first-level warning if the judgment result is that there are toxic gas and corrosive gas in the target gas and the sum of the amounts of the toxic gas and corrosive gas is greater than or equal to a first preset threshold; A fourth determination submodule, configured to determine that the warning level is a level 2 warning if the sum of the amount of toxic gas and corrosive gas in the target gas is greater than or equal to a second preset threshold; The fifth determination submodule is used to determine that the warning level is a third-level warning if the sum of the amounts of toxic gas and corrosive gas in the target gas is greater than or equal to a third preset threshold.

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