Method and device for efficiently treating exhaust gas of inorganic gas in test box

Abstract

The invention discloses an efficient treatment method and device for exhaust of inorganic gas tail gas in a test box, and relates to the technical field related to tail gas treatment.The method comprises the steps that inorganic gas in the test box is collected to obtain to-be-treated tail gas, and the to-be-treated tail gas is sensed and monitored to obtain tail gas information before treatment; introducing a tail gas evaluation mechanism to evaluate and analyze the tail gas information before treatment to obtain a tail gas treatment index; judging whether the tail gas treatment index is at a preset limit value; and if yes, activating the physicochemical duplex processor to treat the tail gas to be treated to obtain the tail gas to be discharged. The technical problems that in the prior art, inorganic tail gas of a test box is difficult to cooperatively discharge and treat, treatment parameters cannot be adaptively adjusted according to the concentration change of the tail gas, the tail gas treatment efficiency is low, emission does not reach the standard, and the environmental protection performance is insufficient are solved. The technical effects of intelligent regulation and control of tail gas treatment and accurate up-to-standard emission are achieved, and the tail gas purification treatment efficiency and the environmental protection performance are improved.

Description

Technical Field

[0001] The present application relates to the technical field related to tail gas treatment, and specifically to a method and device for efficiently treating the discharge of inorganic gas tail gas from a test chamber. Background Art

[0002] Ammonia gas corrosion test chamber is widely used in the fields of electrical and electronic products, material testing, environmental simulation, chemical synthesis, photovoltaic components, etc. The test chamber simulates the corrosive environment containing ammonia salt to evaluate the corrosion resistance of materials. During operation, a large amount of inorganic gas exhaust will be generated, such as nitrogen oxides (NO x ), sulfur oxides (SO x ), hydrogen chloride (HCl), ammonia (NH3), etc. If these inorganic exhaust gases are directly discharged without effective treatment, they will not only corrode laboratory facilities but also cause serious pollution to the atmospheric environment. Currently, research on ammonia salt test chambers mainly focuses on hardware design such as temperature and humidity control and gas concentration accuracy improvement. There are obvious deficiencies in efficient and environmentally friendly exhaust treatment. Existing exhaust treatment methods such as physical adsorption, chemical absorption, and catalytic oxidation have low treatment efficiency, poor adaptability, and high operating costs. They also lack the ability to monitor and dynamically control exhaust composition and concentration in real time. They are unable to automatically adjust treatment strategies based on changes in exhaust concentration, making it difficult to achieve accurate and efficient exhaust treatment.

[0003] Therefore, in the current relevant technologies, there are technical problems such as difficulty in coordinating the exhaust treatment of inorganic gas from the test chamber and inability to adaptively adjust the treatment parameters according to changes in exhaust gas concentration, resulting in low exhaust gas treatment efficiency, substandard emissions, and insufficient environmental protection performance. Summary of the Invention

[0004] This application solves the technical problems in the prior art that inorganic gas exhaust in the test chamber is difficult to discharge and treat in a coordinated manner, and cannot adaptively adjust treatment parameters according to changes in exhaust gas concentration, resulting in low exhaust gas treatment efficiency, substandard emissions, and insufficient environmental protection performance, by providing an efficient method and device for treating inorganic gas exhaust in the test chamber. This application achieves the technical effect of realizing intelligent control of exhaust gas treatment, precise emission standards, and improving exhaust gas purification treatment efficiency and environmental protection performance.

[0005] The present application provides an efficient treatment method for the exhaust of inorganic gas in a test chamber, the method comprising: collecting inorganic gas in the test chamber to obtain exhaust gas to be treated, and sensing and monitoring the exhaust gas to be treated to obtain exhaust gas information before treatment; introducing an exhaust gas evaluation mechanism to evaluate and analyze the exhaust gas information before treatment to obtain an exhaust gas treatment index; judging whether the exhaust gas treatment index is within a predetermined limit; if so, activating a physical and chemical dual processor to process the exhaust gas to be treated to obtain exhaust gas to be discharged.

[0006] In a possible implementation, the efficient treatment method for exhaust of inorganic gas in the test chamber also performs the following treatments: monitoring the ammonia concentration of the exhaust gas to be treated by an exhaust gas monitoring sensor to obtain the ammonia concentration before treatment; monitoring the hydrochloric acid gas concentration of the exhaust gas to be treated by an exhaust gas monitoring sensor to obtain the hydrochloric acid gas concentration before treatment; the ammonia concentration before treatment and the hydrochloric acid gas concentration before treatment constitute the exhaust gas information before treatment.

[0007] In a possible implementation, the efficient treatment method for inorganic gas exhaust in the test chamber also performs the following processing: extracting the treatment weight distribution pre-stored in the exhaust gas evaluation mechanism; using the treatment weight distribution as a calculation coefficient, performing standardized calculation on the ammonia concentration before treatment and the hydrochloric acid gas concentration before treatment to obtain the exhaust gas treatment index; wherein the normalized value of the treatment weight distribution after normalization is less than 1.

[0008] In a possible implementation, the efficient treatment method for exhaust of inorganic gas in the test chamber also performs the following processing: after determining whether the exhaust treatment index is within a predetermined limit, if it is not, activating the anti-backflow atomizing spray equipment in the physical and chemical dual processor, performing primary treatment on the exhaust gas to be treated, and obtaining the exhaust gas to be discharged.

[0009] In a possible implementation, the efficient treatment method for exhausting inorganic gas in the test chamber also performs the following treatments: activating the anti-backflow atomizing spray equipment in the physical and chemical dual processor to perform primary treatment on the exhaust gas to be treated to obtain primary exhaust gas; activating the ammonium sulfate mother liquor countercurrent spray crystallization equipment in the physical and chemical dual processor to perform secondary treatment on the primary exhaust gas to obtain secondary exhaust gas; and using the secondary exhaust gas as the exhaust gas to be discharged.

[0010] In a possible implementation, the method for efficiently treating the exhaust of inorganic gas in the test chamber further performs the following treatment: the spray liquid of the anti-backflow atomizing spray equipment is a predetermined acidic absorption liquid, and the pH value of the predetermined acidic absorption liquid ranges from 2.5 to 3.5; wherein, the preparation method of the predetermined acidic absorption liquid includes: diluting a predetermined industrial sulfuric acid to a concentration of 13% to obtain an absorption liquid stock solution; obtaining a predetermined surfactant, and the concentration range of the predetermined surfactant is 0.1% to 0.3%; under predetermined solution temperature conditions, adding the predetermined surfactant to the absorption liquid stock solution to obtain the predetermined acidic absorption liquid.

[0011] In a possible implementation, the method for efficiently treating the exhaust of inorganic gas in the test chamber further performs the following treatment: the spray liquid of the ammonium sulfate mother liquor countercurrent spray crystallization equipment is a predetermined ammonium sulfate solution, and the concentration range of the predetermined ammonium sulfate solution is 15% to 25%.

[0012] In a possible implementation, the method for efficiently treating the exhaust of inorganic gases in the test chamber also performs the following processing: activating an online detector to perform dynamic continuity detection on the treatment process of the exhaust gas to be treated to obtain an online detection time sequence; visualizing the online detection time sequence to obtain an online detection curve chart; judging whether the exhaust gas to be discharged meets the predetermined emission constraints based on the online detection curve chart; if so, performing emission treatment on the exhaust gas to be discharged; if not, activating a fiber demister to perform aerosol particle removal treatment on the exhaust gas to be discharged.

[0013] In a possible implementation, the method for efficiently treating the exhaust of inorganic gas in the test chamber further performs the following processing: extracting the ammonia concentration time series in the online detection time series; performing polynomial fitting on the scattered ammonia concentration time series to obtain an ammonia fitting curve; extracting the hydrochloric acid gas concentration time series in the online detection time series; performing polynomial fitting on the scattered hydrochloric acid gas concentration time series to obtain a hydrochloric acid gas fitting curve; the ammonia fitting curve and the hydrochloric acid gas fitting curve constitute the online detection curve graph.

[0014] The present application also provides an efficient treatment device for the exhaust of inorganic gas in a test chamber, and the device includes: a sensing and monitoring module, which is used to collect inorganic gas in the test chamber to obtain exhaust gas to be treated, and sense and monitor the exhaust gas to be treated to obtain exhaust gas information before treatment; an evaluation and analysis module, which is used to introduce an exhaust gas evaluation mechanism to evaluate and analyze the exhaust gas information before treatment to obtain an exhaust gas treatment index; an exhaust gas treatment index judgment module, which is used to judge whether the exhaust gas treatment index is within a predetermined limit; and an exhaust gas treatment module, which is used to activate a physical and chemical dual processor to process the exhaust gas to be treated if it is within a predetermined limit to obtain exhaust gas to be discharged.

[0015] The present application proposes an efficient method and device for treating the exhaust of inorganic gases in a test chamber, which collects the inorganic gases in the test chamber to obtain the exhaust gas to be treated, and senses and monitors the exhaust gas to obtain the exhaust gas information before treatment; introduces an exhaust gas evaluation mechanism to evaluate and analyze the exhaust gas information before treatment to obtain the exhaust gas treatment index; determines whether the exhaust gas treatment index is within a predetermined limit; if so, activates the physical and chemical dual processor to treat the exhaust gas to obtain the exhaust gas to be discharged. This solves the technical problems in the prior art of the difficulty in coordinating the exhaust treatment of inorganic gases in the test chamber and the inability to adaptively adjust the treatment parameters according to changes in exhaust gas concentration, resulting in low exhaust gas treatment efficiency, substandard emissions, and insufficient environmental performance. It achieves the technical effect of realizing intelligent control of exhaust gas treatment, precise emission standards, and improved exhaust gas purification efficiency and environmental performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the accompanying drawings of the embodiments of the present disclosure are briefly introduced below. Flowcharts are used in this application to illustrate the operations performed by the apparatus according to the embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in precise order. Instead, various steps may be processed in reverse order or simultaneously as needed. Furthermore, other operations may be added to these processes, or one or more operations may be removed from these processes.

[0017] Figure 1 This is a flow chart of a method for efficiently treating the exhaust of inorganic gas from a test chamber provided in an embodiment of the present application.

[0018] Figure 2 This is a schematic diagram of the structure of an efficient treatment device for exhausting inorganic gas from a test chamber provided in an embodiment of the present application.

[0019] Explanation of the accompanying drawings: perception monitoring module 10 , evaluation and analysis module 20 , exhaust gas treatment index judgment module 30 , exhaust gas treatment module 40 . DETAILED DESCRIPTION

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0021] In order to make the purpose, technical solutions and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limiting this application. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict, and the terms “first\second” involved are merely to distinguish similar objects and do not represent a specific ordering of the objects. The terms “including” and “having” and any variations are intended to cover non-exclusive inclusions, for example, a process, method, device, product or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products or devices. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein are for the purpose of describing the embodiments of this application only.

[0023] The present invention provides an efficient method for treating the exhaust of inorganic gas in a test chamber. Figure 1 As shown, the method includes: In step S100 , inorganic gas in the test chamber is collected to obtain exhaust gas to be treated, and the exhaust gas to be treated is sensed and monitored to obtain exhaust gas information before treatment.

[0024] Preferably, inorganic gases generated by the ammonia salt gas corrosion test experiment in the test chamber are collected through a sealed exhaust device or a negative pressure suction device of the test chamber to obtain the exhaust gas to be treated, which mainly includes corrosive, toxic or harmful gases such as ammonia (NH3) and hydrogen chloride (HCl); then the exhaust gas to be treated is sensed and monitored, that is, multi-parameter real-time detection of the collected exhaust gas is performed using equipment such as electrochemical sensors, infrared spectrometers, temperature and humidity sensors, gas chromatographs, etc. to obtain key gas information, which may include gas composition, such as the specific types and mixing ratios of NH3 and HCl; concentration data of each gas component, such as the NH3 concentration ppm value and the HCl mg / m³ value; physical parameters such as temperature, humidity, pressure, flow rate, etc. of the exhaust gas to be treated, and finally a structured parameter set, i.e., the exhaust gas information before treatment, is obtained, and combined with a gas buffer device such as a gas cabinet or a temporary storage tank, the gas is introduced into the exhaust gas treatment unit for treatment.

[0025] Furthermore, step S100 also includes step S110, monitoring the ammonia concentration of the exhaust gas to be treated through an exhaust gas monitoring sensor to obtain the ammonia concentration before treatment; step S120, monitoring the hydrochloric acid gas concentration of the exhaust gas to be treated through an exhaust gas monitoring sensor to obtain the hydrochloric acid gas concentration before treatment; step S130, the ammonia concentration before treatment and the hydrochloric acid gas concentration before treatment constitute the exhaust gas information before treatment.

[0026] Preferably, the ammonia concentration and hydrochloric acid gas concentration in the exhaust gas to be treated are monitored in real time by an exhaust gas monitoring sensor to obtain key data. Specifically, a high-precision ammonia sensor, such as an electrochemical sensor, a semiconductor sensor or an infrared absorption sensor, is used to detect in real time the volume fraction or ppm-level concentration of ammonia generated by the ammonia salt corrosion test in the test chamber to obtain the ammonia concentration before treatment. If the sensor measures the ammonia concentration to be 800 ppm, the ammonia concentration before treatment is 0.08%; a hydrochloric acid gas sensor, such as an electrochemical sensor or a laser spectrometer, is used to detect in real time the volume fraction or ppm-level concentration of hydrogen chloride gas generated by hydrochloric acid mist or a chlorine-containing corrosive environment to obtain the hydrochloric acid gas concentration before treatment. If the sensor measures the HCl concentration to be 5 ppm, the hydrochloric acid gas concentration before treatment is 0.0005%; finally, the ammonia concentration before treatment and the hydrochloric acid gas concentration before treatment are combined to form the exhaust information before treatment to ensure that the data truly reflects the degree of exhaust pollution.

[0027] In step S200, an exhaust gas evaluation mechanism is introduced to evaluate and analyze the exhaust gas information before treatment to obtain an exhaust gas treatment index.

[0028] Step S200 further includes step S210, extracting the processing weight distribution pre-stored in the exhaust gas evaluation mechanism; step S220, using the processing weight distribution as a calculation coefficient, performing standardized calculation on the ammonia concentration before treatment and the hydrochloric acid gas concentration before treatment to obtain the exhaust gas treatment index; wherein the normalized value of the processing weight distribution after normalization is less than 1.

[0029] Preferably, the exhaust gas assessment mechanism is an intelligent exhaust gas pollution degree quantification strategy. Through multi-parameter weight allocation and standardized calculation, the exhaust gas information before treatment obtained by monitoring is converted into a quantifiable and comparable exhaust gas treatment index, which is used to decide whether deep exhaust gas treatment is needed. Specifically, the treatment weight allocation pre-stored in the exhaust gas assessment mechanism is extracted, that is, the contribution weights of ammonia and hydrochloric acid gases to environmental pollution pre-set based on scientific basis such as gas toxicity, corrosiveness, and environmental protection standard limits are extracted, wherein the normalized value of the treatment weight allocation after normalization is less than 1, and ammonia is easier to treat than hydrochloric acid gas, for example, the ammonia weight is 0.6 and the hydrochloric acid weight is 0.4; then, the standard limits of ammonia and hydrochloric acid gas are quoted, that is, the standard limit of ammonia is 0.05% and the standard limit of hydrochloric acid gas is 0.0003%, and then the treatment weight allocation is used as the calculation coefficient to perform standardized calculation on the ammonia concentration and hydrochloric acid gas concentration in the exhaust gas information before treatment. , to eliminate the unit differences between ammonia and hydrochloric acid gases, and map the concentration values ​​to a unified dimension, and then determine whether further exhaust treatment is needed based on the exhaust treatment index, to ensure the intelligence, precision and resource efficiency of exhaust treatment.

[0030] Step S300: determining whether the exhaust gas treatment index is within a predetermined limit.

[0031] Preferably, the calculated exhaust gas treatment index is compared with a preset predetermined limit to determine whether deep exhaust gas treatment is required, wherein the predetermined limit is a safety threshold that meets environmental protection standards, usually 1. When the exhaust gas treatment index = 1, it means that the exhaust gas concentration just reaches the environmental protection standard limit; if the exhaust gas treatment index is not at the predetermined limit, it is determined that the exhaust gas meets the standard; if the exhaust gas treatment index is at the predetermined limit, it is determined that the exhaust gas pollution exceeds the standard.

[0032] Furthermore, step S300 also includes, after determining whether the exhaust gas treatment index is within a predetermined limit, if not, activating the anti-backflow atomizing spray equipment in the physical and chemical dual processor to perform primary treatment on the exhaust gas to be treated to obtain the exhaust gas to be discharged.

[0033] Preferably, if the exhaust gas treatment index is not within the predetermined limit, the anti-backflow atomizing spray equipment in the physical and chemical dual processor is activated to perform basic purification treatment on the exhaust gas to be treated, that is, primary treatment, and through the synergistic effect of physical and chemical reactions, the low-concentration pollutants in the exhaust gas are efficiently removed to ensure that the emission meets the standards. Specifically, a one-way valve or a U-shaped liquid seal structure is used to prevent backflow to prevent the liquid in the exhaust gas pipeline, such as the spray liquid, from flowing back into the test box due to pressure fluctuations, thereby avoiding contamination of the equipment or samples; the high-pressure nozzle of the anti-backflow atomizing spray equipment breaks the liquid into 10-50μm droplets to increase the gas-liquid contact area, and a packing layer is set in the spray tower to enhance the mass transfer efficiency, wherein an absorption liquid is selected for different gases, for example, a dilute sulfuric acid solution is selected for ammonia gas, and an alkaline solution is selected for hydrochloric acid gas; the exhaust gas to be treated enters the spray tower and contacts with the atomized droplets in countercurrent, and the ammonia or hydrochloric acid gas in the gas is absorbed by the liquid and a chemical reaction occurs. The purified gas is dehydrated by the demister to become the exhaust gas to be discharged, so as to ensure that the low-concentration exhaust gas meets the emission standards.

[0034] Step S400: If it is, activate the physical-chemical dual processor to process the exhaust gas to be processed to obtain the exhaust gas to be discharged.

[0035] Step S400 further includes step S410, activating the anti-backflow atomizing spray equipment in the physical and chemical dual processor to perform primary treatment on the exhaust gas to be treated to obtain primary exhaust gas; step S420, activating the ammonium sulfate mother liquor countercurrent spray crystallization equipment in the physical and chemical dual processor to perform secondary treatment on the primary exhaust gas to obtain secondary exhaust gas; step S430, using the secondary exhaust gas as the exhaust gas to be discharged.

[0036] Preferably, if the tail gas treatment index is within a predetermined limit, the physical and chemical dual processor is activated to adopt a two-stage cascade treatment process to purify the tail gas step by step through the synergistic effect of physical and chemical reactions, including using an anti-backflow atomizing spray device to perform primary treatment on the tail gas to be treated for basic purification, and then using an ammonium sulfate mother liquor countercurrent spray crystallization device to perform secondary treatment on the first-stage tail gas for deep purification, and finally outputting a second-stage tail gas that meets the emission standards. Specifically, for low-concentration pollutants, the anti-backflow atomizing spray device is used for primary treatment to remove 80% to 90% of the easily soluble gases and output the first-stage tail gas; then, for the difficult-to-treat pollutants remaining after the primary treatment, such as trace ammonia and aerosols, the ammonium sulfate mother liquor countercurrent spray crystallization device is used for secondary treatment to achieve near-zero emissions and resource recovery, that is, saturated ammonium sulfate mother liquor is used as the spray liquid to spray from the top of the tower, and it contacts the rising tail gas in the opposite direction to prolong the contact time. The amount of sulfuric acid added is automatically adjusted by the pH sensor, and the ammonia and H in the mother liquor are reacted. + The reaction generates (NH4)2SO4 crystals, which are then separated by a centrifuge and used as fertilizer raw materials. Secondary exhaust gas is then output and used as exhaust gas to be discharged, ensuring that environmental protection standards are met while significantly improving economic benefits.

[0037] Furthermore, step S410 also includes that the spray liquid of the anti-backflow atomizing spray equipment is a predetermined acidic absorption liquid, and the pH value of the predetermined acidic absorption liquid ranges from 2.5 to 3.5; wherein, the preparation method of the predetermined acidic absorption liquid includes: step a, diluting a predetermined industrial sulfuric acid to a concentration of 13% to obtain an absorption liquid stock solution; step b, obtaining a predetermined surfactant, and the concentration range of the predetermined surfactant is from 0.1% to 0.3%; step c, adding the predetermined surfactant to the absorption liquid stock solution under a predetermined solution temperature condition to obtain the predetermined acidic absorption liquid.

[0038] Preferably, the spray liquid of the anti-backflow atomizing spray equipment is a predetermined acidic absorption liquid with a pH value ranging from 2.5 to 3.5 to ensure rapid neutralization of alkaline ammonia. Specifically, a predetermined industrial sulfuric acid with a concentration of 98% is used as a raw material, and cold water is slowly added to dilute it to a concentration of 13% to obtain an absorption liquid stock solution, and then a predetermined surfactant with a concentration range of 0.1% to 0.3% is obtained. The absorption liquid stock solution is added under a predetermined solution temperature condition of 25°C to 35°C to avoid high-temperature degradation, so as to enhance gas-liquid contact through the surfactant, for example, the surface tension of the solution is reduced from 72mN / m to 35mN / m, the particle size of the atomized droplets is reduced from 50μm to 20μm, the gas-liquid contact area is increased by 300%, and the absorption rate is increased by 2 times, and finally the predetermined acidic absorption liquid is obtained.

[0039] Furthermore, step S420 also includes that the spray liquid of the ammonium sulfate mother liquor countercurrent spray crystallization equipment is a predetermined ammonium sulfate solution, and the concentration range of the predetermined ammonium sulfate solution is 15% to 25%.

[0040] Preferably, the spray liquid of the ammonium sulfate mother liquor countercurrent spray crystallization equipment is a predetermined ammonium sulfate solution, which is used to deeply remove residual ammonia and simultaneously recover ammonium sulfate crystals. The concentration range of the predetermined ammonium sulfate solution is 15% to 25%, ensuring the ammonia absorption efficiency and crystallization yield, and the predetermined ammonium sulfate solution can be regenerated and used multiple times to reduce operating costs.

[0041] Furthermore, step S400 also includes step S440, activating the online detector to perform dynamic continuity detection on the treatment process of the exhaust gas to be treated to obtain an online detection timing; step S450, visualizing the online detection timing to obtain an online detection curve chart; step S460, judging whether the exhaust gas to be discharged meets the predetermined emission constraint based on the online detection curve chart; step S470, if so, performing emission treatment on the exhaust gas to be discharged; if not, activating the fiber demister to perform aerosol particle removal treatment on the exhaust gas to be discharged.

[0042] Preferably, the online detector is activated to perform dynamic continuity detection on the treatment process of the tail gas to be treated, wherein the online detector includes an infrared spectroscopy ammonia analyzer and an electrochemical hydrochloric acid gas analyzer. Specifically, the infrared spectroscopy ammonia analyzer is based on the absorption characteristics of ammonia molecules to a specific infrared band, and the measurement range is 0-50ppm; the electrochemical hydrochloric acid gas analyzer is based on the redox reaction of hydrochloric acid gas on the electrode surface to generate a current signal for detection, and the measurement range is 0-10ppm; and the data acquisition frequency is ≥1 times / minute to capture transient fluctuations in concentration; and then the ammonia concentration value and the hydrochloric acid gas concentration value are recorded in time series to obtain an online detection time series. Then the online detection time series is visualized, that is, the detection time is used as the horizontal axis and the gas concentration is used as the vertical axis to visualize the data of the online detection time series, determine the online detection curve chart, and mark the national standard limit red line in the chart. The online detection curve is then used to determine whether the exhaust gas to be discharged meets the predetermined emission constraints, where the predetermined emission constraints mean that the treated exhaust gas meets the emission standards of ammonia concentration ≤20mg / m³ and hydrochloric acid gas concentration ≤7.5mg / m³; if the exhaust gas to be discharged meets the predetermined emission constraints, the discharge valve is opened to discharge the exhaust gas directly; if the exhaust gas to be discharged does not meet the predetermined emission constraints, that is, the ammonia or hydrochloric acid gas concentration in the exhaust gas exceeds the standard, or there are inhalable particulate matter, such as ammonium sulfate aerosol, the fiber demister is activated to remove aerosol particles from the exhaust gas, including a pre-filtration layer to remove particles ≥5μm, and then a glass fiber layer to capture particles 0.3-5μm, and finally the PTFE coated surface is used to electrostatically adsorb ultrafine particles ≤0.3μm to ensure that the exhaust gas fully complies with the comprehensive emission standards for atmospheric pollutants.

[0043] Furthermore, step S450 also includes step S451, extracting the ammonia concentration time series in the online detection time series; step S452, performing polynomial fitting on the scattered ammonia concentration time series to obtain an ammonia fitting curve; step S453, extracting the hydrochloric acid gas concentration time series in the online detection time series; step S454, performing polynomial fitting on the scattered hydrochloric acid gas concentration time series to obtain a hydrochloric acid gas fitting curve; step S455, the ammonia fitting curve and the hydrochloric acid gas fitting curve constitute the online detection curve graph.

[0044] Preferably, all ammonia concentration values ​​are separated and extracted from the online detection time series data to form a time-ammonia concentration scatter sequence, i.e., an ammonia concentration time series. Similarly, all hydrochloric acid gas concentration values ​​are separated and extracted to form a time-hydrochloric acid gas concentration scatter sequence, i.e., a hydrochloric acid gas concentration time series. Then, polynomial fitting is performed on the scattered ammonia concentration time series and the hydrochloric acid gas concentration time series respectively to minimize the overall deviation of the curve from all scatter points, and two best fitting curves are determined, i.e., an ammonia fitting curve and a hydrochloric acid gas fitting curve, wherein the ammonia fitting curve is a smooth trend line generated for the ammonia concentration scatter sequence, and the hydrochloric acid gas fitting curve is an independent trend line generated for the hydrochloric acid gas scatter sequence. Finally, the ammonia fitting curve and the hydrochloric acid gas fitting curve are superimposed on the same coordinate system to form an online detection curve graph, wherein the horizontal axis of the coordinate is the detection time, the vertical axis of the coordinate is the gas concentration, and the ammonia fitting curve and the hydrochloric acid gas fitting curve are distinguished by different colors. This ensures the realization of intelligent control of exhaust gas treatment and accurate emission standards, and improves exhaust gas purification treatment efficiency and environmental protection performance.

[0045] In the above, refer to Figure 1 The present invention describes in detail the efficient treatment method of inorganic gas exhaust in the test box according to the embodiment of the present invention. Figure 2 The invention describes an efficient device for treating inorganic gas tail gas in a test chamber according to an embodiment of the invention.

[0046] The highly efficient treatment device for inorganic gas exhaust in a test chamber according to an embodiment of the present invention is used to solve the technical problems in the prior art that inorganic gas exhaust in the test chamber is difficult to exhaust in a coordinated manner and cannot be adaptively adjusted according to changes in exhaust concentration, resulting in low exhaust treatment efficiency, substandard emissions, and insufficient environmental performance. It achieves the technical effect of realizing intelligent control of exhaust treatment and precise emission standards, and improving exhaust purification efficiency and environmental performance. Figure 2 As shown, the efficient treatment device for inorganic gas exhaust in the test box includes: a sensing and monitoring module 10, an evaluation and analysis module 20, an exhaust treatment index judgment module 30, and an exhaust treatment module 40.

[0047] The sensing and monitoring module 10 is used to collect inorganic gases in the test chamber to obtain exhaust gas to be treated, and to sense and monitor the exhaust gas to be treated to obtain exhaust gas information before treatment; the evaluation and analysis module 20 is used to introduce an exhaust gas evaluation mechanism to evaluate and analyze the exhaust gas information before treatment to obtain an exhaust gas treatment index; the exhaust gas treatment index judgment module 30 is used to judge whether the exhaust gas treatment index is within a predetermined limit; the exhaust gas treatment module 40 is used to activate the physical and chemical dual processor to process the exhaust gas to be treated if it is within a predetermined limit to obtain exhaust gas to be discharged.

[0048] The specific configuration of the perception monitoring module 10 will be described in detail below. The perception monitoring module 10 further comprises: monitoring the ammonia concentration of the to-be-processed tail gas by a tail gas monitoring sensor to obtain the pre-processing ammonia concentration; monitoring the hydrochloric acid gas concentration of the to-be-processed tail gas by a tail gas monitoring sensor to obtain the pre-processing hydrochloric acid gas concentration; and the pre-processing ammonia concentration and the pre-processing hydrochloric acid gas concentration constitute the pre-processing tail gas information.

[0049] The specific configuration of the evaluation analysis module 20 will be described in detail below. The evaluation analysis module 20 further comprises: extracting the pre-stored processing weight distribution in the tail gas evaluation mechanism; and performing a standardization calculation on the pre-processing ammonia concentration and the pre-processing hydrochloric acid gas concentration by taking the processing weight distribution as a calculation coefficient to obtain the tail gas processing index; wherein the normalized value of the normalized processing weight distribution is less than 1.

[0050] The specific configuration of the tail gas processing index judgment module 30 will be described in detail below. The tail gas processing index judgment module 30 further comprises: after judging whether the tail gas processing index is within a predetermined limit value, if not, activating the anti-back-suction atomization spraying equipment in the physical-chemical dual processor to perform primary processing on the to-be-processed tail gas to obtain the to-be-discharged tail gas.

[0051] The specific configuration of the tail gas processing module 40 will be described in detail below. The tail gas processing module 40 further comprises: activating the anti-back-suction atomization spraying equipment in the physical-chemical dual processor to perform primary processing on the to-be-processed tail gas to obtain primary tail gas; activating the ammonium sulfate mother liquor countercurrent spraying crystallization equipment in the physical-chemical dual processor to perform secondary processing on the primary tail gas to obtain secondary tail gas; and taking the secondary tail gas as the to-be-discharged tail gas.

[0052] The specific configuration of the tail gas processing module 40 will be described in detail below. The tail gas processing module 40 further comprises: the spraying liquid of the anti-back-suction atomization spraying equipment is a predetermined acidic absorption liquid, and the pH value of the predetermined acidic absorption liquid ranges from 2.5 to 3.5; wherein the preparation method of the predetermined acidic absorption liquid comprises: diluting a predetermined industrial sulfuric acid to a concentration of 13% to obtain an absorption liquid stock solution; obtaining a predetermined surfactant, and the concentration of the predetermined surfactant ranges from 0.1% to 0.3%; and adding the predetermined surfactant to the absorption liquid stock solution under predetermined solution temperature conditions to obtain the predetermined acidic absorption liquid.

[0053] The specific configuration of the tail gas processing module 40 will be described in detail below. The tail gas processing module 40 further comprises: the spraying liquid of the ammonium sulfate mother liquor countercurrent spraying crystallization equipment is a predetermined ammonium sulfate solution, and the concentration of the predetermined ammonium sulfate solution ranges from 15% to 25%.

[0054] Next, the specific configuration of the tail gas treatment module 40 will be described in detail. The tail gas treatment module 40 further comprises: activating an online detector to dynamically and continuously detect the processing process of the tail gas to be treated, obtaining an online detection time sequence; visualizing the online detection time sequence, obtaining an online detection graph; judging whether the tail gas to be discharged reaches a predetermined discharge constraint based on the online detection graph; if yes, discharging the tail gas to be discharged, if no, activating a fiber mist eliminator to remove aerosol particles from the tail gas to be discharged.

[0055] Next, the specific configuration of the tail gas treatment module 40 will be described in detail. The tail gas treatment module 40 further comprises: extracting the ammonia concentration time sequence in the online detection time sequence; performing polynomial fitting on the scattered ammonia concentration time sequence, obtaining an ammonia fitting curve; extracting the hydrochloric acid gas concentration time sequence in the online detection time sequence; performing polynomial fitting on the scattered hydrochloric acid gas concentration time sequence, obtaining a hydrochloric acid gas fitting curve; the ammonia fitting curve and the hydrochloric acid gas fitting curve constitute the online detection graph.

[0056] The test box inorganic gas tail gas discharge efficient treatment device provided by the embodiment of the application can execute the test box inorganic gas tail gas discharge efficient treatment method provided by any embodiment of the application, has the function modules and beneficial effects corresponding to the execution method.

[0057] Although the present application makes various references to certain modules in the device according to the embodiments of the present application, however, any number of different modules can be used and run on the user terminal and / or server, the various units and modules included are only divided according to the functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, the specific name of each functional unit is only for easy mutual differentiation, and does not limit the protection scope of the present application.

[0058] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent replacement and improvement made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An efficient method for treating inorganic gas tail gas in a test chamber, characterized in that: include: Collecting inorganic gas in the test chamber to obtain exhaust gas to be treated, and sensing and monitoring the exhaust gas to be treated to obtain exhaust gas information before treatment; Introducing an exhaust gas evaluation mechanism to evaluate and analyze the exhaust gas information before treatment to obtain an exhaust gas treatment index; determining whether the exhaust gas treatment index is within a predetermined limit; If it is, activate the physical and chemical dual processor to process the exhaust gas to be processed to obtain the exhaust gas to be discharged.

2. The method for efficiently treating inorganic gas tail gas in a test chamber according to claim 1, characterized in that: Collect the inorganic gas in the test chamber to obtain the tail gas to be treated, and perform sensing and monitoring on the tail gas to be treated to obtain the tail gas information before treatment, including: Monitoring the ammonia concentration of the tail gas to be treated by a tail gas monitoring sensor to obtain the ammonia concentration before treatment; Monitoring the hydrochloric acid gas concentration of the tail gas to be treated by an exhaust gas monitoring sensor to obtain the hydrochloric acid gas concentration before treatment; The ammonia concentration before treatment and the hydrochloric acid gas concentration before treatment constitute the exhaust gas information before treatment.

3. The method for efficiently treating inorganic gas tail gas in a test chamber according to claim 2, characterized in that: An exhaust gas evaluation mechanism is introduced to evaluate and analyze the exhaust gas information before treatment to obtain an exhaust gas treatment index, including: extracting a pre-stored processing weight distribution in the exhaust gas evaluation mechanism; Using the treatment weight distribution as a calculation coefficient, the ammonia concentration before treatment and the hydrochloric acid gas concentration before treatment are standardized and calculated to obtain the tail gas treatment index; The normalized value of the processing weight distribution after normalization is less than 1.

4. The method for efficiently treating inorganic gas tail gas in a test chamber according to claim 1, characterized in that: After determining whether the exhaust gas treatment index is within a predetermined limit, if not, activating the anti-backflow atomizing spray equipment in the physical and chemical dual processor to perform primary treatment on the exhaust gas to be treated to obtain the exhaust gas to be discharged.

5. The method for efficiently treating inorganic gas tail gas in a test chamber according to claim 1, characterized in that: If it is, activating the physical-chemical dual processor to process the exhaust gas to be processed to obtain the exhaust gas to be discharged, including: activating the anti-backflow atomizing spray device in the physical-chemical dual processor to perform primary treatment on the tail gas to be treated to obtain primary tail gas; activating the ammonium sulfate mother liquor countercurrent spray crystallization device in the physical-chemical dual processor to perform secondary treatment on the primary tail gas to obtain secondary tail gas; The secondary tail gas is used as the tail gas to be discharged.

6. The method for efficiently treating inorganic gas tail gas in a test chamber according to claim 5, characterized in that: The spray liquid of the anti-backflow atomizing spray device is a predetermined acidic absorption liquid, and the pH value of the predetermined acidic absorption liquid ranges from 2.5 to 3.5; Wherein, the preparation method of the predetermined acidic absorption liquid includes: Dilute the predetermined industrial sulfuric acid to a concentration of 13% to obtain the absorption liquid stock solution; Obtaining a predetermined surfactant, wherein the concentration of the predetermined surfactant ranges from 0.1% to 0.3%; Under a predetermined solution temperature condition, the predetermined surfactant is added to the absorption liquid stock solution to obtain the predetermined acidic absorption liquid.

7. The method for efficiently treating inorganic gas tail gas in a test chamber according to claim 5, characterized in that: The spray liquid of the ammonium sulfate mother liquor countercurrent spray crystallization equipment is a predetermined ammonium sulfate solution, and the concentration range of the predetermined ammonium sulfate solution is 15% to 25%.

8. The method for efficiently treating inorganic gas tail gas in a test chamber according to claim 1, characterized in that: Also includes: activating an online detector to perform dynamic continuity detection on the treatment process of the exhaust gas to be treated, and obtaining an online detection time sequence; Visualizing the online detection time sequence to obtain an online detection curve graph; determining whether the exhaust gas to be discharged meets a predetermined emission constraint based on the online detection curve graph; If the condition is met, the exhaust gas to be discharged is subjected to discharge treatment; if the condition is not met, the fiber demister is activated to remove aerosol particles from the exhaust gas to be discharged.

9. The method for efficiently treating inorganic gas tail gas in a test chamber according to claim 8, characterized in that: The online detection timing is visualized to obtain an online detection curve diagram, including: Extracting the ammonia concentration time series from the online detection time series; Performing polynomial fitting on the scattered ammonia concentration time series to obtain an ammonia fitting curve; Extracting a hydrochloric acid gas concentration time series from the online detection time series; Performing polynomial fitting on the scattered hydrochloric acid gas concentration time series to obtain a hydrochloric acid gas fitting curve; The ammonia gas fitting curve and the hydrochloric acid gas fitting curve constitute the online detection curve graph.

10. The high-efficiency treatment device for inorganic gas exhaust in the test chamber is characterized by: The device is used to implement the efficient treatment method for exhausting inorganic gas in a test chamber according to any one of claims 1 to 9, and the device comprises: The sensing and monitoring module is used to collect inorganic gas in the test chamber to obtain exhaust gas to be treated, and to sense and monitor the exhaust gas to be treated to obtain exhaust gas information before treatment; An evaluation and analysis module, configured to introduce an exhaust gas evaluation mechanism to evaluate and analyze the exhaust gas information before treatment to obtain an exhaust gas treatment index; An exhaust gas treatment index determination module, configured to determine whether the exhaust gas treatment index is within a predetermined limit; The exhaust gas treatment module is used to activate the physical and chemical dual processor to process the exhaust gas to be treated if it is in the state, so as to obtain the exhaust gas to be discharged.

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