Waste gas classification treatment method and system, electronic equipment and storage medium

Abstract

The invention provides a waste gas classification treatment method and system, electronic equipment, a storage medium and a controller applied to the waste gas classification treatment system.The method comprises the steps that at least one to-be-purified target special gas at the current moment is determined according to the detection result of each special gas detected by a gas inlet gas analyzer at the current moment; determining a target two-way valve corresponding to the target special gas according to the corresponding relationship between the gas purification device and the two-way valve; and by controlling opening and closing of the target two-way valve, waste gas is sequentially conveyed into different target gas purification devices, so that each target special gas at the current moment is sequentially purified according to the position relation between the different target gas purification devices. By adopting the waste gas classification treatment method and system, the electronic equipment and the storage medium, the problems of incomplete waste gas treatment and low waste gas treatment efficiency in an existing waste gas treatment method are solved.

Description

Technical Field

[0001] The present application relates to the technical field of industrial waste gas treatment, and more specifically, to a waste gas classification treatment method, system, electronic equipment and storage medium. Background Art

[0002] Industrial waste gas refers to toxic and harmful gases discharged during industrial production. For example, in the integrated circuit manufacturing process, about 50 types of special gases are required for core process links such as silicon wafer manufacturing, oxidation, photolithography, vapor deposition, etching, and ion implantation. If untreated special gases are directly discharged into the atmosphere, it will cause great pollution to the environment.

[0003] At present, when treating industrial waste gas, one device is usually used to purify and treat multiple special gases. However, since the waste gas treatment equipment needs to be compatible with treating multiple special gases, the equipment cannot fully exert its waste gas treatment efficiency, resulting in the problem that the waste gas cannot be completely treated and the waste gas treatment efficiency is low. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a waste gas classification treatment method, system, electronic device and storage medium to solve the problems of incomplete waste gas treatment and low waste gas treatment efficiency in existing waste gas treatment methods.

[0005] In a first aspect, an embodiment of the present application provides a method for classifying and treating waste gas, which is applied to a controller of a waste gas classification treatment system. The waste gas classification treatment system includes an inlet gas analyzer, a waste gas pre-transmission channel, and multiple gas purification subsystems. Each gas purification subsystem includes a gas purification device and a two-way valve. Each gas purification device is used to purify a special gas in the waste gas. The method includes:

[0006] Determine at least one target special gas to be purified at the current moment according to the detection result of each special gas detected by the gas analyzer at the air inlet at the current moment;

[0007] According to the corresponding relationship between the gas purification device and the two-way valve, determine the target two-way valve corresponding to the target special gas;

[0008] By controlling the opening and closing of the target two-way valve, the exhaust gas is transported to different target gas purification devices in sequence, so that each target special gas at the current moment is purified in sequence according to the positional relationship between the different target gas purification devices.

[0009] Optionally, each gas purification device is connected to the exhaust gas pre-transmission channel through its own intake channel and exhaust channel, the target two-way valve includes a target pre-transmission channel two-way valve and a target intake channel two-way valve, the target pre-transmission channel two-way valve is arranged on the exhaust gas pre-transmission channel between the intake channel and the exhaust channel of the target gas purification device, the target intake channel two-way valve is arranged on the intake channel of the target gas purification device, and the exhaust gas is transported to different target gas purification devices in sequence by controlling the opening and closing of the target two-way valve, including: closing the target pre-transmission channel two-way valve and opening the target intake channel two-way valve to change the exhaust gas transport channel from the exhaust gas pre-transmission channel to the target gas purification channel, and the target gas purification channel is composed of the intake channel, exhaust channel and target gas purification device corresponding to the target special gas.

[0010] Optionally, after determining at least one target special gas to be purified at the current moment, it also includes: determining whether the target special gas at the current moment is exactly the same as the target special gas at the previous moment; if not exactly the same, then for the different target special gas at the previous moment, opening the target forward transmission channel two-way valve corresponding to the different target special gas, and closing the target air intake channel two-way valve corresponding to the different target special gas.

[0011] Optionally, at least one target special gas to be purified is determined based on the detection results of each special gas detected by the inlet gas analyzer at the current moment, including: taking the special gas that does not meet the gas emission standards in the detection results as the target special gas to be purified.

[0012] Optionally, the method further includes: controlling other gas purification devices except the target gas purification device to be in a non-operating mode to save energy consumption.

[0013] Optionally, the exhaust gas classification and treatment system also includes a gas source, a pressure regulating valve and a flow meter for generating a purge gas, which are arranged on a purge gas delivery channel. The purge gas delivery channel is connected to the exhaust gas pre-delivery channel, the intake channel and the exhaust channel corresponding to each gas purification device. The method also includes: adjusting the flow rate and flow velocity of the purge gas entering the exhaust gas pre-delivery channel, the intake channel and the exhaust channel corresponding to each gas purification device through the purge gas delivery channel by controlling the pressure regulating valve and the flow meter.

[0014] Optionally, the target special gas includes at least one of the following items: strong acid corrosive special gas, flammable special gas, toxic special gas, dusty special gas, and hydrogen; the gas purification device corresponding to the strong acid corrosive special gas uses a water cleaning method to purify the strong acid corrosive special gas in the exhaust gas; the gas purification device corresponding to the flammable special gas uses a high-temperature purification method to purify the flammable special gas in the exhaust gas; the gas purification device corresponding to the toxic special gas uses an adsorbent adsorption method to purify the toxic special gas in the exhaust gas; the gas purification device corresponding to the dusty special gas uses an electrostatic adsorption method to purify the dusty special gas in the exhaust gas; the gas purification device corresponding to the hydrogen uses a hydrogen-oxygen reaction method to purify the hydrogen in the exhaust gas.

[0015] In a second aspect, an embodiment of the present application further provides an exhaust gas classification and treatment system, the system comprising a controller, an air inlet gas analyzer, an exhaust gas pre-transmission channel, and a plurality of gas purification subsystems, each gas purification subsystem comprising a gas purification device and a two-way valve;

[0016] A controller, used to execute the above-mentioned exhaust gas classification and treatment method;

[0017] An air inlet gas analyzer is used to detect the exhaust gas at the air inlet of the exhaust gas classification treatment system to obtain the detection results for each special gas and send the detection results to the controller;

[0018] An exhaust gas forwarding channel is used to transport the exhaust gas to each gas purification device;

[0019] Multiple gas purification devices, used to purify the corresponding special gases respectively;

[0020] The two-way valve corresponding to each gas purification device is used to change the channel for conveying the exhaust gas so as to convey the exhaust gas to the target gas purification device for purification treatment.

[0021] In a third aspect, an embodiment of the present application further provides an electronic device, comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the steps of the exhaust gas classification treatment method as described above are performed.

[0022] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the exhaust gas classification and treatment method as described above are executed.

[0023] The embodiments of the present application bring the following beneficial effects:

[0024] The embodiments of the present application provide a method, system, electronic device and storage medium for classifying and treating waste gas, which can perform separate purification treatment on each special gas in the waste gas through different gas purification devices, so that each special gas can be treated in the best purification environment, thereby improving the waste gas treatment efficiency, avoiding the problem of not being able to fully exert the waste gas treatment efficiency due to purifying multiple special gases on one waste gas treatment device at the same time, improving the waste gas treatment efficiency, and solving the problems of incomplete waste gas treatment and low waste gas treatment efficiency compared with the waste gas treatment method in the prior art.

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of the exhaust gas classification treatment system provided in an embodiment of the present application is shown;

[0028] Figure 2 A flow chart showing the exhaust gas classification treatment method provided in an embodiment of the present application is shown;

[0029] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0030] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, each other embodiment obtained by those skilled in the art without making creative work belongs to the scope of protection of the present application.

[0031] It is worth noting that before this application was filed, industrial waste gas refers to toxic and harmful gases discharged in industrial production. For example, in the integrated circuit manufacturing process, there are about 50 types of special gases required for core process links such as silicon wafer manufacturing, oxidation, photolithography, vapor deposition, etching, and ion implantation. If the untreated special gases are directly discharged into the atmosphere, it will cause great pollution to the environment. At present, when industrial waste gas is treated, one device is usually used to purify and treat multiple special gases. However, since the waste gas treatment equipment needs to be compatible with the treatment of multiple special gases, the equipment cannot fully exert its waste gas treatment efficiency, resulting in the problem that the waste gas cannot be completely treated and the waste gas treatment efficiency is low.

[0032] Based on this, an embodiment of the present application provides a waste gas classification and treatment system to improve the waste gas treatment efficiency.

[0033] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of an exhaust gas classification and treatment system provided in an embodiment of the present application. Figure 1 As shown in the figure, the waste gas classification and treatment system 10 includes: a controller (not shown in the figure), an air inlet gas analyzer 101, a first gas purification subsystem 110, a second gas purification subsystem 120, a third gas purification subsystem 130, a fourth gas purification subsystem 140, and a fifth gas purification subsystem 150.

[0034] The inlet gas analyzer 101 is arranged at the inlet of the waste gas classification and treatment system 10 and is connected to the controller to detect the waste gas at the inlet of the waste gas classification and treatment system 10 to obtain the detection result for each special gas and send the detection result to the controller. The gas analyzer can detect the content information of each special gas in the waste gas, so that the controller can determine the target special gas to be treated in the waste gas according to the content information.

[0035] Each gas purification subsystem includes a gas purification device and a two-way valve, and the two-way valve includes a two-way valve for the front transmission channel and a two-way valve for the air intake channel. For example, the first gas purification subsystem 110 includes a first two-way valve for the front transmission channel 111, a first two-way valve for the air intake channel 112, and a first gas purification device 113; the second gas purification subsystem 120 includes a second two-way valve for the front transmission channel 121, a second two-way valve for the air intake channel 122, and a second gas purification device 123; the third gas purification subsystem 130 includes a third two-way valve for the front transmission channel 131, a third two-way valve for the air intake channel 132, and a third gas purification device 133; the fourth gas purification subsystem 140 includes a fourth two-way valve for the front transmission channel 141, a fourth two-way valve for the air intake channel 142, and a fourth gas purification device 143; the fifth gas purification subsystem 150 includes a fifth two-way valve for the front transmission channel 151, a fifth two-way valve for the air intake channel 152, and a fifth gas purification device 153. Each gas purification device is used to purify a special gas in the exhaust gas, and each gas purification device is connected to the exhaust gas forward transmission channel through its own intake channel and exhaust channel. The forward transmission two-way valve is arranged on the exhaust gas forward transmission channel between the intake channel and the exhaust channel of the gas purification device, and the forward transmission channel two-way valve is in a normally open state. The intake channel two-way valve is arranged on the intake channel of the gas purification device, and the intake channel two-way valve is in a normally closed state.

[0036] The waste gas includes dozens of gases to be treated, which can be divided into the following categories according to their properties: strong acid corrosive special gases, flammable special gases, toxic special gases, dusty special gases, and hydrogen.

[0037] The number of multiple gas purification subsystems is determined by the type of special gas. For example, if it is set that a maximum of five different special gases can be purified, the number of gas purification subsystems is five, and the number of corresponding gas purification devices is also five. In addition, multiple gas purification devices are used to purify the corresponding special gases respectively. The special gases that each gas purification device can process are pre-set, and only the specified special gases can be purified. Exemplarily, the multiple gas purification devices can be multiple machines for gas purification. The first gas purification device 113 is used for purifying strong acid corrosive special gases, the second gas purification device 123 is used for purifying flammable special gases, the third gas purification device 133 is used for purifying toxic special gases, the fourth gas purification device 143 is used for purifying dust-type special gases, and the fifth gas purification device 153 is used for purifying hydrogen. In addition, each gas purification device corresponds to an air intake channel and an exhaust channel, and the gas purification device is connected to the exhaust gas front transmission channel through the air intake channel and the exhaust channel. The position of each gas purification device is not necessarily fixed, and those skilled in the art may select the sequence between different gas purification devices according to actual conditions.

[0038] The exhaust gas forward delivery channel 161 is a channel connecting the air inlet and the exhaust port, and is used to deliver the exhaust gas to each gas purification device and to deliver the exhaust gas from the air inlet to the exhaust port.

[0039] The waste gas classification and treatment system 100 also includes a gas source 171, a pressure regulating valve 172 and a flow meter 173 for generating a purge gas. The gas source 171, the pressure regulating valve 172 and the flow meter 173 are all connected to the controller and are arranged on the purge gas delivery channel. The purge gas delivery channel is respectively connected to the waste gas pre-delivery channel, the intake channel and the exhaust channel in each gas purification subsystem to purge the residual gas in the waste gas pre-delivery channel, the intake channel and the exhaust channel in each gas purification subsystem. The gas source 171 is used to receive a control signal from the controller to generate a purge gas. For example, the purge gas can be nitrogen. The pressure regulating valve 172 is used to receive a pressure adjustment signal from the controller to adjust the air pressure in the purge gas delivery channel to provide power for delivering the purge gas. The flow meter 173 is used to measure the flow of the purge gas and send the measured flow to the controller.

[0040] It should be noted that all gas purification devices, gas analyzers, and two-way valves are connected to the controller so that the controller can control these devices.

[0041] Based on the same inventive concept, an exhaust gas classification treatment method corresponding to the exhaust gas classification treatment system is also provided in the embodiment of the present application. Since the principle of solving the problem by the method in the embodiment of the present application is similar to the above-mentioned exhaust gas classification treatment method in the embodiment of the present application, the implementation of the system can refer to the implementation of the method, and the repeated parts will not be repeated.

[0042] See also Figure 2 , Figure 2 This is a flow chart of a waste gas classification treatment method provided in an embodiment of the present application. Figure 2 As shown, the exhaust gas classification treatment method provided in the embodiment of the present application is applied to the controller of the exhaust gas classification treatment system, and the method includes:

[0043] Step S201, determining at least one target special gas to be purified at the current moment according to the detection result of each special gas detected by the gas analyzer at the air inlet at the current moment;

[0044] Step S202, determining a target two-way valve corresponding to the target special gas according to the corresponding relationship between the gas purification device and the two-way valve;

[0045] Step S203, by controlling the opening and closing of the target two-way valve, the exhaust gas is sequentially transported to different target gas purification devices, so as to purify each target special gas at the current moment in turn according to the positional relationship between the different target gas purification devices.

[0046] Through the above-mentioned waste gas classification and treatment method, the present application can use different gas purification devices to separately purify each special gas in the waste gas, so that each special gas can be treated in the best purification environment, thereby improving the waste gas treatment efficiency and avoiding the problem of the waste gas treatment efficiency not being fully utilized due to the simultaneous purification of multiple special gases on one waste gas treatment equipment. The waste gas treatment efficiency is improved and the problems of incomplete waste gas treatment and low waste gas treatment efficiency are solved.

[0047] Below Figure 2 Each step is described in detail.

[0048] In step S201, at least one target special gas to be purified at the current moment is determined according to the detection result of each special gas detected by the inlet gas analyzer at the current moment.

[0049] In an embodiment of the present application, exhaust gas enters the exhaust gas classification and treatment system from the air inlet, and the air inlet gas analyzer detects the exhaust gas at the air inlet in real time, and sends the detection results of each special gas in the exhaust gas to the controller. The controller selects the special gas that does not meet the gas emission standard in the detection results as the target special gas to be purified based on the gas emission standard.

[0050] Among them, the test results of the inlet gas analyzer include but are not limited to: gas proportion and gas concentration. The gas proportion may refer to the proportion of the volume of the special gas in the exhaust gas, and the gas concentration may refer to the mass of the gas per unit volume. The controller compares the gas proportion, gas concentration and other test data of each special gas with the various emission indicators in the gas emission standard. If the emission indicators are not met, the special gas is used as the target special gas; if the emission indicators are met, the special gas is not used as the target special gas.

[0051] The target special gas selected according to the emission index can be one or more. The target special gas includes at least one of the following items: strong acid corrosive special gas, flammable special gas, toxic special gas, dusty special gas, and hydrogen.

[0052] After determining at least one target special gas to be purified at the current moment, it is necessary to determine whether the target special gas at the current moment is exactly the same as the target special gas at the previous moment. If not, for the different target special gas at the previous moment, the target forward transmission channel two-way valve corresponding to the different target special gas is opened, and the target intake channel two-way valve corresponding to the different target special gas is closed.

[0053] For example: the target special gas at the previous moment was strong acid corrosive special gas and hydrogen, and the target special gas at the current moment is hydrogen, then the strong acid corrosive special gas is a different target special gas from the previous moment, therefore, the first forward transmission channel two-way valve corresponding to the strong acid corrosive special gas is opened, and the first air intake channel two-way valve corresponding to the strong acid corrosive special gas is closed to prevent the exhaust gas from entering the first gas purification device through the first air intake channel two-way valve, and allow the exhaust gas to enter the subsequent gas purification device through the first forward transmission channel two-way valve.

[0054] In step S202, a target two-way valve corresponding to the target special gas is determined according to the corresponding relationship between the gas purification device and the two-way valve.

[0055] After determining the target special gas, it is necessary to turn on the target gas purification subsystem corresponding to the target special gas, and put other gas purification subsystems in standby or energy-saving mode.

[0056] In the embodiment of the present application, the target two-way valve corresponding to the target special gas can be determined first, and then the exhaust gas can be allowed to enter the target gas purification subsystem by controlling the target two-way valve, and the target gas purification device can be controlled to enter the working mode to purify the target special gas in the exhaust gas. At the same time, other gas purification devices except the target gas purification device are controlled to be in non-working mode, that is, to enter standby or energy-saving mode to save energy consumption.

[0057] Assume that the target special gas at the current moment is a strong acid corrosive special gas. Since the subsystem for processing the strong acid corrosive special gas is the first gas purification subsystem, the first front transmission channel two-way valve and the first air intake channel two-way valve are determined as the target two-way valves.

[0058] In step S203, by controlling the opening and closing of the target two-way valve, the exhaust gas is sequentially transported to different target gas purification devices, so that each target special gas at the current moment is sequentially purified according to the positional relationship between the different target gas purification devices.

[0059] Here, the two-way valve of the target forward transmission channel can be closed to cut off the channel for the exhaust gas to enter other subsequent gas purification subsystems through the exhaust gas forward transmission channel. At the same time, the two-way valve of the target intake channel is opened to open the channel for the exhaust gas to enter the target gas purification device, thereby changing the exhaust gas transportation channel from the exhaust gas forward transmission channel to the target gas purification channel. Among them, the target gas purification channel is composed of the intake channel, exhaust channel and target gas purification device corresponding to the target special gas. The exhaust gas first enters the intake channel of the first gas purification subsystem, and then enters the first gas purification device through the intake channel. After being purified by the first gas purification device, the exhaust channel of the first gas purification device enters the exhaust gas forward transmission channel. The path through which the exhaust gas flows is the target gas purification channel.

[0060] In addition, if the target special gas is a strong acid corrosive special gas, the first gas purification device corresponding to the strong acid corrosive special gas will use a water cleaning method to purify the strong acid corrosive special gas in the exhaust gas.

[0061] If the target special gas is a flammable special gas, the second gas purification device corresponding to the flammable special gas will use a high-temperature purification method to purify the flammable special gas in the exhaust gas.

[0062] If the target special gas is a toxic special gas, the third gas purification device corresponding to the toxic special gas will use an adsorbent adsorption method to purify the toxic special gas in the exhaust gas.

[0063] If the target special gas is a dusty special gas, the fourth gas purification device corresponding to the dusty special gas will use an electrostatic adsorption method to purify the dusty special gas in the exhaust gas.

[0064] If the target special gas is hydrogen, the fifth gas purification device corresponding to hydrogen will use a hydrogen-oxygen reaction method to purify the hydrogen in the exhaust gas.

[0065] After the exhaust gas is purified, it is transported through the exhaust gas forward channel to the exhaust port and discharged into the atmosphere.

[0066] In one example, before the exhaust gas purification treatment is performed, the residual gas in the channel needs to be purged. At this time, the controller controls the pressure regulating valve and the flow meter to adjust the flow rate and flow velocity of the purge gas entering the exhaust gas pre-transmission channel, the intake channel and the exhaust channel corresponding to each gas purification device through the purge gas transmission channel to remove the residual gas in the above channels. The purge gas can be nitrogen, and no purification treatment is required for nitrogen.

[0067] See also Figure 3 , Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 3 As shown in , the electronic device 300 includes a processor 310 , a memory 320 and a bus 330 .

[0068] The memory 320 stores machine-readable instructions executable by the processor 310. When the electronic device 300 is running, the processor 310 communicates with the memory 320 via the bus 330. When the machine-readable instructions are executed by the processor 310, the above-mentioned Figure 2 The specific implementation of the steps of the waste gas classification treatment method in the method embodiment shown can be found in the method embodiment, which will not be repeated here.

[0069] The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the computer program can execute the above-mentioned Figure 2 The specific implementation methods of the steps of the waste gas classification treatment method in the method embodiment shown can be found in the method embodiment, which will not be repeated here.

[0070] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0071] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0072] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0073] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0074] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application can essentially be embodied in the form of a software product, or in other words, the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0075] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for classifying and treating waste gas, characterized in that: A controller applied to an exhaust gas classification treatment system, wherein the exhaust gas classification treatment system comprises an air inlet gas analyzer, an exhaust gas pre-transmission channel, and a plurality of gas purification subsystems, each of which comprises a gas purification device and a two-way valve, and each gas purification device is used to purify a special gas in the exhaust gas, and the method comprises: Determine at least one target special gas to be purified at the current moment according to the detection result of each special gas detected by the inlet gas analyzer at the current moment; Determining a target two-way valve corresponding to the target special gas according to a corresponding relationship between a gas purification device and a two-way valve; By controlling the opening and closing of the target two-way valve, the exhaust gas is sequentially transported to different target gas purification devices, so that each target special gas at the current moment is sequentially purified according to the positional relationship between the different target gas purification devices.

2. The method according to claim 1, characterized in that Each gas purification device is connected to the exhaust gas pre-transmission channel through its own intake channel and exhaust channel, the target two-way valve includes a target pre-transmission channel two-way valve and a target intake channel two-way valve, the target pre-transmission channel two-way valve is arranged on the exhaust gas pre-transmission channel between the intake channel and the exhaust channel of the target gas purification device, the target intake channel two-way valve is arranged on the intake channel of the target gas purification device, and the exhaust gas is sequentially transported to different target gas purification devices by controlling the opening and closing of the target two-way valve, including: The two-way valve of the target pre-transmission channel is closed, and the two-way valve of the target air intake channel is opened to change the exhaust gas delivery channel from the exhaust gas pre-transmission channel to the target gas purification channel, and the target gas purification channel is composed of the air intake channel, exhaust channel and the target gas purification device corresponding to the target special gas.

3. The method according to claim 2, characterized in that After determining at least one target special gas to be purified at the current moment, the method further includes: Determine whether the target special gas at the current moment is exactly the same as the target special gas at the previous moment; If they are not exactly the same, for the different target special gas at the previous moment, the target forward transmission channel two-way valve corresponding to the different target special gas is opened, and the target air intake channel two-way valve corresponding to the different target special gas is closed.

4. The method according to claim 1, characterized in that: The step of determining at least one target special gas to be purified according to the detection result of each special gas currently detected by the inlet gas analyzer comprises: The special gases in the detection results that do not meet the gas emission standards are used as target special gases to be purified.

5. The method according to claim 1, characterized in that The method further comprises: Control other gas purification devices except the target gas purification device to be in a non-operating mode to save energy consumption.

6. The method according to claim 1, characterized in that The exhaust gas classification and treatment system further includes a gas source, a pressure regulating valve and a flow meter for generating a purge gas, which are arranged on a purge gas delivery channel, wherein the purge gas delivery channel is connected to the exhaust gas pre-delivery channel, an intake channel and an exhaust channel corresponding to each gas purification device, and the method further includes: By controlling the pressure regulating valve and the flow meter, the flow rate and flow velocity of the sweep gas entering the exhaust gas pre-transmission channel, the intake channel and the exhaust channel corresponding to each gas purification device through the sweep gas delivery channel are adjusted.

7. The method according to claim 1, characterized in that The target special gas includes at least one of the following: Strong acid corrosive special gases, flammable special gases, toxic special gases, dusty special gases, hydrogen; The gas purification device corresponding to the strong acid corrosive special gas purifies the strong acid corrosive special gas in the exhaust gas by a water cleaning method; The gas purification device corresponding to the flammable special gas purifies the flammable special gas in the exhaust gas by using a high-temperature purification method; The gas purification device corresponding to the toxic special gas purifies the toxic special gas in the exhaust gas by using an adsorbent adsorption method; The gas purification device corresponding to the dusty special gas purifies the dusty special gas in the exhaust gas by using an electrostatic adsorption method; The gas purification device corresponding to the hydrogen utilizes a hydrogen-oxygen reaction method to purify the hydrogen in the exhaust gas.

8. A waste gas classification treatment system, characterized in that: It includes a controller, an air inlet gas analyzer, an exhaust gas pre-transmission channel, and multiple gas purification subsystems, each of which includes a gas purification device and a two-way valve; The controller is used to perform the exhaust gas classification treatment method according to any one of claims 1 to 7; The air inlet gas analyzer is used to detect the exhaust gas at the air inlet of the exhaust gas classification treatment system to obtain the detection result for each special gas and send the detection result to the controller; The exhaust gas forward transmission channel is used to transmit the exhaust gas to each gas purification device; Multiple gas purification devices, used to purify the corresponding special gases respectively; The two-way valve corresponding to each gas purification device is used to change the channel for conveying the exhaust gas so as to convey the exhaust gas to the target gas purification device for purification treatment.

9. An electronic device, characterized in that: include: A processor, a storage medium and a bus, wherein the storage medium stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the storage medium communicate through the bus, and the processor executes the machine-readable instructions to perform the steps of the exhaust gas classification treatment method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the exhaust gas classification treatment method according to any one of claims 1 to 7 are executed.

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