Industrial waste gas energy recovery method and system

Abstract

The invention is suitable for the technical field of waste gas recovery, and particularly relates to an industrial waste gas energy recovery method and system.The industrial waste gas energy recovery method comprises the steps that under the condition that it is detected that the waste gas temperature exceeds a preset threshold value in the industrial production process, first equipment information of waste gas source equipment is obtained; inquiring a thermoelectric conversion device connected with the waste gas source equipment based on the first equipment information of the waste gas source equipment, and determining second equipment information of the thermoelectric conversion device; according to the first equipment information and the second equipment information, the operation mode of a thermoelectric conversion device connected with the waste gas source equipment is set, and dynamic adjustment and efficient conversion of waste gas energy are achieved; according to the operation mode of the thermoelectric conversion device connected with the waste gas source equipment, the energy recovery effect of the thermoelectric conversion device is determined, the energy utilization efficiency in industrial production is remarkably improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present application belongs to the field of waste gas recovery technology, and in particular, relates to an industrial waste gas energy recovery method and system. Background Art

[0002] Industrial energy waste gas recovery refers to the process of recovering the heat energy in the high-temperature waste gas generated during the industrial production process through technical means and converting it into useful energy, such as electricity, steam or hot water, for reuse. The application of these technologies can effectively improve energy utilization, reduce the operating costs of enterprises, and also meet the environmental protection requirements of sustainable development.

[0003] Existing industrial energy waste gas recovery often adopts a fixed operating mode. When faced with changes in operating conditions, manual adjustments are often required. There is a lack of intelligent control methods, and it is difficult to respond quickly according to changes in actual operating conditions, resulting in low energy recovery efficiency and high maintenance costs. Summary of the invention

[0004] The embodiments of the present application provide an industrial waste gas energy recovery method and system, which can solve the problems of low energy recovery efficiency and high maintenance cost due to the lack of intelligent control means in the waste gas energy recovery process.

[0005] In a first aspect, an embodiment of the present application provides a method for recovering energy from industrial waste gas, comprising:

[0006] When it is detected that the temperature of the exhaust gas in the industrial production process exceeds a preset threshold, first device information of the exhaust gas source device is obtained;

[0007] Based on the first device information of the exhaust gas source device, query the thermoelectric conversion device connected to the exhaust gas source device to determine the second device information of the thermoelectric conversion device;

[0008] According to the first device information and the second device information, setting the operation mode of the thermoelectric conversion device connected to the exhaust gas source device; wherein the operation mode is used to control the operation of the thermoelectric conversion device;

[0009] According to the operation mode of the thermoelectric conversion device connected to the exhaust gas source equipment, the energy recovery effect of the thermoelectric conversion device is determined.

[0010] The above technical solution provided by the embodiment of the present application has at least the following technical effects:

[0011] The industrial waste gas energy recovery method provided in the embodiment of the present application obtains the first device information of the waste gas source equipment when it is detected that the waste gas temperature exceeds a preset threshold during the industrial production process, so as to fully grasp the operating status of the waste gas source equipment and the waste gas characteristics that it may generate. Based on the first device information of the waste gas source equipment, the thermoelectric conversion device connected to the waste gas source equipment is queried to determine the second device information of the thermoelectric conversion device for more efficient processing and to avoid wasting too much heat resources. Based on the first device information and the second device information, the operating mode of the thermoelectric conversion device connected to the waste gas source equipment is set to achieve dynamic adjustment and efficient conversion of waste gas energy. According to the operating mode of the thermoelectric conversion device connected to the waste gas source equipment, the energy recovery effect of the thermoelectric conversion device is determined, which significantly improves the energy utilization efficiency in industrial production, reduces maintenance costs, and achieves the goal of sustainable development.

[0012] In a second aspect, an embodiment of the present application provides an industrial waste gas energy recovery system, comprising:

[0013] The first unit is used to obtain first device information of the exhaust gas source device when it is detected that the exhaust gas temperature in the industrial production process exceeds a preset threshold;

[0014] A second unit is used to query the thermoelectric conversion device connected to the exhaust gas source device based on the first device information of the exhaust gas source device, and determine the second device information of the thermoelectric conversion device;

[0015] An operation unit, used to set an operation mode of the thermoelectric conversion device connected to the exhaust gas source device according to the first device information and the second device information; wherein the operation mode is used to control the operation of the thermoelectric conversion device;

[0016] An evaluation unit is used to determine the energy recovery effect of the thermoelectric conversion device according to the operation mode of the thermoelectric conversion device connected to the exhaust gas source equipment.

[0017] In a third aspect, an embodiment of the present application provides an industrial waste gas energy recovery device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in any one of the first aspects above is implemented.

[0018] In a fourth aspect, an embodiment of the present application provides a computer program product. When the computer program product is run on an industrial waste gas energy recovery device, the industrial waste gas energy recovery device executes any one of the methods described in the first aspect above.

[0019] It can be understood that the beneficial effects of the second to fourth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a flow chart of an industrial waste gas energy recovery method provided by an embodiment of the present application;

[0022] Figure 2 It is a schematic diagram of the operation flow of the industrial waste gas energy recovery method provided in one embodiment of the present application;

[0023] Figure 3 It is a flow chart of step S3211 of the industrial waste gas energy recovery method provided in one embodiment of the present application;

[0024] Figure 4 is a flow chart of step S300 of the industrial waste gas energy recovery method provided in one embodiment of the present application;

[0025] Figure 5 It is a structural schematic diagram of an industrial waste gas energy recovery system provided by an embodiment of the present application;

[0026] Figure 6 It is a structural schematic diagram of an industrial waste gas energy recovery device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0027] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0028] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0029] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0030] As used in the specification of this application and the appended claims, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting" depending on the context. Similarly, the phrase "if it is determined" or "if the described condition or event is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce the described condition or event is detected" or "in response to detecting the described condition or event" depending on the context.

[0031] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0032] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0033] Existing industrial energy waste gas recovery often adopts a fixed operating mode. When faced with changes in operating conditions, manual adjustments are often required. There is a lack of intelligent control methods, and it is difficult to respond quickly according to changes in actual operating conditions, resulting in low energy recovery efficiency and high maintenance costs.

[0034] To solve the above problems, an embodiment of the present application provides an industrial waste gas energy recovery and system. In this method, by obtaining the first device information of the waste gas source equipment when it is detected that the waste gas temperature exceeds the preset threshold during the industrial production process, the operating status of the waste gas source equipment and the waste gas characteristics that it may generate are fully understood. Based on the first device information of the waste gas source equipment, the thermoelectric conversion device connected to the waste gas source equipment is queried to determine the second device information of the thermoelectric conversion device for more efficient processing and to avoid wasting too much heat resources. Based on the first device information and the second device information, the operating mode of the thermoelectric conversion device connected to the waste gas source equipment is set to achieve dynamic adjustment and efficient conversion of waste gas energy. According to the operating mode of the thermoelectric conversion device connected to the waste gas source equipment, the energy recovery effect of the thermoelectric conversion device is determined, which significantly improves the energy utilization efficiency in industrial production, reduces maintenance costs, and achieves the goal of sustainable development.

[0035] The industrial waste gas energy recovery method provided in the embodiment of the present application can be applied to a terminal device. In this case, the terminal device is the executor of the industrial waste gas energy recovery method provided in the embodiment of the present application. The embodiment of the present application does not impose any restrictions on the specific type of the terminal device.

[0036] For example, the terminal device can be a laptop computer, ultra-mobile personal computer (UMPC), netbook, desktop computer, smart screen, smart TV and other terminal devices, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, etc.

[0037] In order to better understand the industrial waste gas energy recovery method provided in the embodiment of the present application, the specific implementation process of the industrial waste gas energy recovery method provided in the embodiment of the present application is exemplarily introduced below.

[0038] Figure 1 A schematic flow chart of an industrial waste gas energy recovery method provided in an embodiment of the present application is shown, and the industrial waste gas energy recovery method includes:

[0039] S100, when it is detected that the temperature of the exhaust gas in the industrial production process exceeds a preset threshold, first device information of the exhaust gas source device is obtained.

[0040] It can be understood that in industrial production, the monitoring and detection of exhaust gas temperature can be achieved by obtaining data from a temperature sensor connected to the control system of the terminal device. The preset threshold value can be a critical temperature value defined in advance in the setting. Beyond this threshold value, the exhaust gas temperature can be considered sufficient for energy recovery. The exhaust gas channel can also monitor the exhaust gas pressure and exhaust gas flow rate through other sensors. The exhaust gas source equipment can be an industrial equipment that generates exhaust gas, such as a boiler, a furnace, or an exhaust system of a production line. The first device information can be specific data about the exhaust gas source equipment, such as identification information of the exhaust gas source equipment (such as ID), equipment model, manufacturer, equipment identification connected to the exhaust gas source equipment, etc., as well as sensor monitoring information related to exhaust gas treatment, such as current exhaust gas temperature, exhaust gas pressure and exhaust gas flow rate. Sensor data and first device information data can be stored in the database in advance to provide sufficient data support for subsequent steps.

[0041] Exemplarily, the first device information of the exhaust gas source device can be obtained by identifying the temperature sensor data, detecting the exhaust gas temperature, and when the critical temperature value of the exhaust gas temperature (preset threshold) is reached, the information of the exhaust gas source device is located according to the location of the sensor information or the connection device information, and various information of the exhaust gas source device is obtained from the database.

[0042] S200, based on the first device information of the exhaust gas source device, query the thermoelectric conversion device connected to the exhaust gas source device to determine the second device information of the thermoelectric conversion device.

[0043] It can be understood that in industrial production, equipment is interconnected, and the exhaust gas source equipment will be connected to a processing or conversion device, such as a thermoelectric conversion device. Based on the first device information, other equipment information directly connected to the device can be found, especially the device responsible for energy conversion. A thermoelectric conversion device is a device that converts thermal energy into electrical energy. The second device information includes detailed data about the thermoelectric conversion device, such as its model, identifier, device status, etc. The second device information can be extracted from the factory's database or equipment management system, and can be matched according to the device ID or identifier to find the thermoelectric conversion device associated with the exhaust gas source equipment and read the relevant data.

[0044] In a possible implementation, S200, based on the first device information of the exhaust gas source device, querying the thermoelectric conversion device connected to the exhaust gas source device to determine the second device information of the thermoelectric conversion device includes:

[0045] S210, querying a thermoelectric conversion device connected to the exhaust gas source device based on the first device information of the exhaust gas source device, and determining identification information of the thermoelectric conversion device.

[0046] It can be understood that in the first device information, the thermoelectric conversion device related to the device can be retrieved and the identification information of the thermoelectric conversion device can be read by identifying the device identification connected to the exhaust gas source device. This can be achieved through the device interconnection network or management database, which is conducive to controlling and adjusting the correct device.

[0047] S220: query and determine second device information of the thermoelectric conversion device according to the identification information of the thermoelectric conversion device.

[0048] It can be understood that after determining the identification information of the thermoelectric conversion device, more detailed information of the thermoelectric conversion device, that is, the second device information, can be further queried. The second device information may include technical specifications, working modes, operating status, historical data, etc. of the thermoelectric conversion device. The second device information is the basis for subsequent energy conversion and optimization calculations.

[0049] For example, the identification information can be used to query the device database and return all relevant data of the thermoelectric conversion device, ensuring that all operations and calculations are based on real and accurate device parameters.

[0050] S300, setting the operation mode of the thermoelectric conversion device connected to the exhaust gas source device according to the first device information and the second device information; wherein the operation mode is used to control the operation of the thermoelectric conversion device.

[0051] It is understood that the operating mode of the thermoelectric conversion device refers to the working state or configuration of the thermoelectric conversion device, which is used to optimize the operating efficiency of the device. Setting the operating mode may include adjusting the temperature, pressure, flow rate and other parameters of the thermoelectric conversion device so that the thermoelectric conversion device can optimally convert the heat energy in the exhaust gas into electrical energy. The first device information (temperature, pressure, flow rate of the exhaust gas) is combined with the second device information (parameters of the thermoelectric conversion device, such as heat exchange area, conversion efficiency, etc.) to set these operating parameters.

[0052] In a possible implementation, the first device information includes exhaust gas temperature, exhaust gas pressure and exhaust gas flow rate; see Figure 4 S300, according to the first device information and the second device information, setting the operation mode of the thermoelectric conversion device connected to the exhaust gas source device, including:

[0053] S310, determining the amount of heat that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas according to the exhaust gas temperature, the exhaust gas pressure and the exhaust gas flow rate and the second device information.

[0054] It can be understood that when the thermoelectric converter is in operation, the heat energy that can be captured from the exhaust gas can be calculated based on the physical parameters of the exhaust gas (temperature, pressure, flow rate) and the characteristics of the device (heat exchange area, conversion efficiency). The captured heat information is the core data for calculating the usable energy in the exhaust gas.

[0055] Exemplarily, the algorithm calculation can be set by thermodynamic formulas, for example, the total amount of heat captured can be estimated by the formula Q=mcΔT (where Q is heat, m is the mass flow rate of exhaust gas, c is the specific heat capacity of exhaust gas, and ΔT is the temperature difference).

[0056] Optionally, S310, determining the amount of heat that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas according to the exhaust gas temperature, the exhaust gas pressure, the exhaust gas flow rate and the second device information, includes:

[0057] S311, determining a heat exchange area of ​​the thermoelectric conversion device according to the second device information.

[0058] It can be understood that the heat exchange area refers to the area of ​​the surface where the thermoelectric conversion device and the exhaust gas exchange heat. The heat exchange area of ​​the device can be determined by the second device information, that is, the design parameters of the thermoelectric conversion device itself. The heat exchange area directly affects the efficiency of the exhaust gas heat capture. The larger the heat exchange area, the more heat the exhaust gas can transfer. Therefore, the heat exchange area of ​​the device can be determined by identifying the design parameters of the thermoelectric conversion device recorded in the second device information, especially the structural information of the thermoelectric conversion device itself.

[0059] S312, calculating the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas based on the exhaust gas temperature, exhaust gas pressure, exhaust gas flow rate and heat exchange area.

[0060] It can be understood that the heat information that the thermoelectric conversion equipment can capture in the process of treating exhaust gas can be calculated based on the exhaust gas temperature, exhaust gas pressure, exhaust gas flow rate and heat exchange area. The density ρ of the exhaust gas can be determined by the ideal gas state equation or by looking up the table, PV=nRT. Where R is the gas constant and n is the number of moles. The mass flow rate m of the exhaust gas can be calculated using the following formula: m=ρ*Av, A is the heat exchange area, and v is the exhaust gas flow rate. Enthalpy H is a state function. For an ideal gas, the enthalpy change ΔH can be approximately considered to be equal to the internal energy change plus the volume work. However, in practical applications, we usually only focus on the enthalpy change caused by temperature changes. Specific heat capacity c p It represents the amount of heat required to raise the temperature of a unit mass of a substance by 1 degree. For most gases, the specific heat capacity can be assumed to be constant. Therefore, the enthalpy change ΔH can be calculated using the following formula: ΔH = c p *ΔT, where ΔT = T0-T, represents the exhaust gas outlet temperature minus the inlet temperature. The captured heat Q can be calculated using the following formula: Q = m*c p *ΔT.

[0061] S320, determining the waste gas energy conversion data converted by the thermoelectric conversion device according to the heat information that can be captured by the thermoelectric conversion device in the process of treating the waste gas and the second device information; wherein the waste gas energy conversion data is used to reflect the electric energy converted by the thermoelectric conversion device.

[0062] It can be understood that the exhaust gas energy conversion data is the energy data that can be converted under the actual state of the equipment. The energy data that the exhaust gas can convert can be further calculated by combining the calculated heat information with the performance data of the equipment. The exhaust gas energy conversion data reflects the electrical energy that can be converted by the thermoelectric conversion device under actual conditions. In the calculation process, the conversion efficiency of the equipment is crucial. Even if the equipment captures a large amount of heat, if the conversion efficiency is low, the part that can actually be converted into electrical energy is still limited.

[0063] Optionally, S320, determining the exhaust gas energy conversion data converted by the thermoelectric conversion device according to the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas and the second device information, includes:

[0064] S321, determining the displacement loss amount of the thermoelectric conversion device according to the heat information that the thermoelectric conversion device can capture in the process of treating the exhaust gas and the second device information; wherein the displacement loss amount is used to reflect the energy loss of the thermoelectric conversion of the thermoelectric conversion device.

[0065] It can be understood that the displacement loss refers to the energy loss caused by factors such as equipment efficiency loss and thermal resistance loss during the thermoelectric conversion process. It can be determined by analyzing the difference between the actual energy capture efficiency of the thermoelectric conversion device and the theoretical value. During the operation of the thermoelectric conversion device, some heat is not effectively converted into electrical energy, part of the energy is lost in the heat conduction process, or heat loss is caused by material limitations and equipment aging.

[0066] Exemplarily, S321, determining the displacement loss amount of the thermoelectric conversion device according to the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas and the second device information, includes:

[0067] S3211, determining the actual heat exchange area, standard thermal resistance, and unit heat exchange efficiency loss value corresponding to the unit thermal resistance of the thermoelectric conversion device in the process of treating exhaust gas based on the second device information.

[0068] It can be understood that the actual heat exchange area refers to the effective surface area for heat exchange between the exhaust gas and the thermoelectric converter. Due to the erosion or contamination of the exhaust gas during use, the actual heat exchange area may not be the same as the calibrated data. The size of the heat exchange area directly affects the heat transfer efficiency. A larger heat exchange area means a higher heat capture capacity. The actual heat exchange area can be determined by analyzing the data distribution in the historical processing of the thermoelectric converter to determine the actual heat exchange area of ​​the thermoelectric converter. The actual heat exchange area can be inferred by obtaining the data distribution in the historical processing. The standard thermal resistance refers to the resistance encountered when heat passes through the material. Its size is related to the thermal conductivity of the material and is a constant that has been determined when the thermoelectric converter leaves the factory. The standard thermal resistance is directly obtained through the technical data of the material structure in the second device information of the thermoelectric converter. In general, materials with lower thermal conductivity have larger thermal resistance, resulting in more energy loss. The unit heat exchange efficiency loss value corresponding to the unit thermal resistance is the heat exchange efficiency loss caused by the unit thermal resistance, which is also a constant that has been determined when the thermoelectric converter leaves the factory.

[0069] For example, see Figure 3 , S3211, determining the actual heat exchange area of ​​the thermoelectric conversion device in the process of treating the exhaust gas according to the second device information, including:

[0070] S32111, based on the second device information, determine multiple historical energy conversion data of the thermoelectric conversion device in the process of historically treating exhaust gas for the most recent preset number of times; wherein the historical energy conversion data is used to reflect the actual quantity conversion status of the thermoelectric conversion device in the process of historically treating exhaust gas.

[0071] It can be understood that based on the second device information, the historical energy conversion data of the thermoelectric conversion device in the most recent multiple historical exhaust gas treatment processes can be analyzed and extracted. The historical energy conversion data includes the actual energy capture and conversion of the thermoelectric conversion device when treating exhaust gas. Through the analysis of historical data, it can provide an important reference basis for the subsequent heat exchange efficiency calculation. Each time the thermoelectric conversion device treats exhaust gas, it will generate a set of energy conversion data, which can be monitored and recorded in real time. The historical energy conversion data can be regularly stored in the data center or cloud platform of the device, which can reflect the energy conversion performance of the device under different environmental conditions and exhaust gas treatment conditions, and provide reliable data support for subsequent steps.

[0072] S32112, determining multiple historical actual heat exchange areas of the thermoelectric conversion device during the most recent preset number of historical exhaust gas treatment processes based on multiple historical energy conversion data of the thermoelectric conversion device during the most recent preset number of historical exhaust gas treatment processes.

[0073] It can be understood that the actual heat exchange area can be inferred from the amount of heat energy captured by the thermoelectric conversion device under different exhaust gas treatment conditions. The heat exchange area is one of the key factors affecting energy conversion efficiency, and its change directly determines the effect of the device in capturing and utilizing heat energy.

[0074] S32113, determining the actual heat exchange area of ​​the thermoelectric conversion device in the process of treating the exhaust gas based on multiple historical actual heat exchange areas of the thermoelectric conversion device in the process of treating the exhaust gas for the most recent preset number of times.

[0075] It can be understood that the actual heat exchange area determines the energy conversion efficiency of the thermoelectric converter when treating exhaust gas. Based on the extracted historical heat exchange area data, the heat exchange area in the current exhaust gas treatment process can be derived through data fitting or prediction model.

[0076] Exemplarily, the derivation method may include linear regression, time series analysis or other statistical methods to predict the heat exchange area in current operation through historical trends, thereby forming a reasonableness and accuracy match between real-time data and historical trends.

[0077] S3212, obtaining, based on the actual heat exchange area of ​​the thermoelectric conversion device, an influencing factor of the heat exchange efficiency of the thermoelectric conversion device in the process of treating exhaust gas.

[0078] It can be understood that the influencing factor of heat exchange efficiency is determined by the difference between the actual heat exchange area and the initial heat exchange area (calibrated heat exchange area). The heat capture of the thermoelectric converter in the process of treating exhaust gas is proportional to the heat exchange area. Therefore, the proportional relationship between the actual heat exchange area and the initial heat exchange area can be regarded as the proportional relationship between the actual heat exchange area and the actual efficiency of the thermoelectric converter, that is, the proportional factor of the actual heat exchange area and the initial heat exchange area can determine the influencing factor of the heat exchange efficiency of the thermoelectric converter when other conditions except the heat exchange area remain unchanged.

[0079] Exemplarily, area ratio=actual heat exchange area / initial heat exchange area, and influencing factor=area ratio.

[0080] S3213, determining a first heat exchange efficiency of the thermoelectric conversion device in the process of treating exhaust gas according to the second device information and the influencing factor; wherein the first heat exchange efficiency is an ideal heat exchange efficiency of an actual heat exchange area of ​​the thermoelectric conversion device.

[0081] It can be understood that the ideal heat exchange efficiency of the thermoelectric conversion device in the exhaust gas treatment process can be calculated through the influencing factors and the second device information. The first heat exchange efficiency represents the maximum efficiency that the device can achieve under ideal conditions, that is, without additional energy loss or interference conditions.

[0082] For example, assuming that the thermoelectric conversion device is under optimal conditions, the heat exchange area is the actual heat exchange area, and there is no energy loss, its efficiency can be defined as the first heat exchange efficiency. At this time, the energy Q actually captured by the thermoelectric conversion device is Q=Q0*k, Q0 is the heat information that the thermoelectric conversion device can capture in the process of treating exhaust gas, k is the influencing factor, and the first heat exchange efficiency is η, η=Q / Q0, where η and k are the same under ideal conditions, but may not be the same in actual results.

[0083] S3214, determining the second heat exchange efficiency of the thermoelectric conversion device in the process of treating exhaust gas based on the first heat exchange efficiency of the thermoelectric conversion device in the process of treating exhaust gas, the standard thermal resistance, and the reduced unit heat exchange efficiency loss value corresponding to the unit thermal resistance; wherein the second heat exchange efficiency is the actual heat exchange efficiency of the actual heat exchange area of ​​the thermoelectric conversion device.

[0084] It can be understood that the difference between the actual heat exchange efficiency and the ideal heat exchange efficiency is that the actual energy loss due to thermal resistance is taken into account. The second heat exchange efficiency is the actual heat conversion efficiency of the thermoelectric conversion device, reflecting the actual performance of the thermoelectric conversion device in treating exhaust gas. The standard thermal resistance and the unit heat exchange efficiency loss value corresponding to the unit thermal resistance are constant information that has been obtained from the second device information.

[0085] For example, the second heat exchange efficiency can be obtained by subtracting the efficiency loss caused by thermal resistance from the first heat exchange efficiency to obtain the second heat exchange efficiency of the thermoelectric conversion device under actual operation. Efficiency loss = standard thermal resistance * unit heat exchange efficiency loss value corresponding to the reduction of unit thermal resistance. Second heat exchange efficiency = first heat exchange efficiency - efficiency loss, that is, η = η0-η 损 , where η is the second heat exchange efficiency, η 损 is the efficiency loss due to thermal resistance, and η0 is the first heat exchange efficiency.

[0086] S3215, determining the displacement loss amount of the thermoelectric conversion device according to the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas and the second heat exchange efficiency.

[0087] It can be understood that the displacement loss refers to the energy loss caused by factors such as thermal resistance loss during the thermoelectric conversion process. During the operation of the thermoelectric conversion device, some heat is not effectively converted into electrical energy, and part of the energy is lost during the heat conduction process due to the limitations of the material, resulting in heat loss. By combining the captured heat information and the second heat exchange efficiency, the energy loss caused by the low actual heat exchange efficiency of the equipment during the exhaust gas treatment process can be calculated, that is, the displacement loss of the thermoelectric conversion device.

[0088] Exemplarily, the displacement loss of the thermoelectric conversion device=(1-the second heat exchange efficiency)*the amount of heat information that the thermoelectric conversion device can capture during the process of treating the exhaust gas.

[0089] S322, determining the exhaust gas energy conversion data converted by the thermoelectric conversion device according to the heat information and displacement loss amount that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas.

[0090] It can be understood that the displacement loss amount and the heat information captured by the equipment can be combined to calculate and obtain the final data of exhaust gas conversion into electrical energy, that is, the exhaust gas energy conversion data, to understand the energy conversion efficiency of the thermoelectric conversion device in actual work.

[0091] Exemplarily, the exhaust gas energy conversion data can be calculated based on the following formula: E = (E0-E l ), where E represents the final energy conversion data, E0 represents the total energy captured during the exhaust process, and E l The actual amount of electrical energy conversion after exhaust gas treatment can be calculated through energy calculation, thereby further optimizing the energy management of the entire production line.

[0092] S330, setting the operation mode of the thermoelectric conversion device connected to the exhaust gas source equipment according to the exhaust gas energy conversion data converted by the thermoelectric conversion device.

[0093] It can be understood that the setting of the operating mode is directly related to the working efficiency of the device under different exhaust gas conditions. By setting the operating mode of the thermoelectric conversion device connected to the exhaust gas source device, it can be ensured that the device can be adaptively adjusted according to the different parameter conditions of the exhaust gas. By analyzing the current power conversion situation of the device, the operating parameters of the thermoelectric conversion device can be automatically adjusted, thereby improving the overall working efficiency of the thermoelectric conversion device.

[0094] Optionally, S330, according to the exhaust gas energy conversion data converted by the thermoelectric conversion device, setting the operation mode of the thermoelectric conversion device connected to the exhaust gas source device includes:

[0095] S331, determining a real-time conversion level of the exhaust gas energy conversion data according to the exhaust gas energy conversion data converted by the thermoelectric conversion device.

[0096] It can be understood that the real-time conversion level is a direct reflection of the current energy conversion capacity of the thermoelectric conversion device, and can be divided into multiple levels so that the device can automatically adjust its operating state according to the real-time conversion efficiency. It can be further quantified into a real-time conversion level based on the acquired energy conversion data. It can be based on the energy conversion rate, through the formula: η = E / E0, where E is the exhaust gas energy conversion data, and E0 is the total energy of the incoming exhaust gas, that is, the heat information that the thermoelectric conversion device can capture during the exhaust gas treatment process. The grading standard is determined by the energy conversion rate, and the real-time conversion level of the exhaust gas energy conversion data is determined.

[0097] Exemplarily, the real-time classification of energy conversion is evaluated based on a preset energy level standard, and the conversion level can comprehensively reflect the performance of the device. It can be mapped and determined according to the specific value of the energy conversion rate, including: for example, when the energy conversion rate is above 80% and the converted electricity reaches the preset value, it is determined as "high-efficiency conversion"; when the energy conversion rate is between 50% and 80%, it is determined as "medium conversion"; and when the energy conversion rate is less than 50%, it is "low-efficiency conversion".

[0098] S332, calculating the operating parameter set of the thermoelectric conversion device connected to the exhaust gas source device according to the real-time conversion level of the exhaust gas energy conversion data; wherein the operating parameter set is used to optimize the thermoelectric conversion efficiency of the thermoelectric conversion device.

[0099] It can be understood that in order to provide the thermoelectric conversion device with optimized operating conditions and thus improve the thermoelectric conversion efficiency of the device, the changes in the exhaust gas energy conversion data can be analyzed in detail, and the operating parameters of the device can be adjusted in real time based on these data. For example, when the thermoelectric conversion device is in a high-efficiency conversion state, some operating parameters can be appropriately reduced, such as reducing the exhaust gas flow rate, to save energy consumption. Medium conversion level: If the thermoelectric conversion device is in a medium conversion state, the flow rate and pressure can be appropriately increased to improve the heat exchange efficiency between the exhaust gas and the thermoelectric conversion device. Inefficient conversion level: When the thermoelectric conversion device is in an inefficient conversion state, it usually means that the exhaust gas conditions are poor or the parameters of the thermoelectric conversion device are unreasonable. The flow rate, temperature and pressure can be significantly increased to improve the conversion efficiency. The calculation of the operating parameter set is to calculate the optimal operating parameter set, and multiple simulation calculations can be performed based on historical data such as exhaust gas temperature, pressure, flow rate and real-time conversion level. The real-time exhaust gas energy conversion data can be compared with the historical operating data to calculate the optimal operating parameter set under the current conditions; the operating parameters of the thermoelectric conversion device can be automatically adjusted based on the optimization algorithm to maintain the efficient operation state of the device in a dynamically changing environment.

[0100] S333, setting the operation mode of the thermoelectric conversion device connected to the exhaust gas source device according to the operation parameter set of the thermoelectric conversion device connected to the exhaust gas source device.

[0101] It can be understood that the operating parameters of the thermoelectric conversion device connected to the exhaust gas source device can be set based on the previously determined operating parameter set, that is, the operating mode of the thermoelectric conversion device is set. The setting of the operating mode takes into account the current operating status of the equipment, the exhaust gas energy conversion data and the parameter adjustment of the thermoelectric conversion device, which is conducive to the device to achieve the best conversion efficiency under specific exhaust gas conditions. The appropriate operating mode can be automatically determined based on real-time data, so as to issue instructions to control the operation mode of the thermoelectric conversion device, such as adjusting the start and stop timing, operating frequency and load level of the equipment, so as to ensure that the thermoelectric conversion efficiency is optimized. The setting of the operating mode must not only meet the current exhaust gas treatment needs, but also adjust the operating status in real time through a continuous feedback mechanism. Ultimately, the set operating mode will guide the device to efficiently complete heat capture and electrical energy conversion under different exhaust gas treatment environments.

[0102] S400, determining the energy recovery effect of the thermoelectric conversion device according to the operation mode of the thermoelectric conversion device connected to the exhaust gas source equipment.

[0103] It can be understood that the energy recovery effect of the device can be evaluated by analyzing the operating mode of the thermoelectric conversion device connected to the exhaust gas source equipment and the corresponding energy recovery data under the operating mode, and comprehensively evaluating the energy recovery of the thermoelectric conversion device in the process of treating exhaust gas, mainly through comparative analysis of actual energy conversion and theoretical estimated energy. The energy recovery effect is not only a measure of the power conversion efficiency of the equipment, but also includes its effective capture and utilization of exhaust gas heat to ensure the energy-saving and environmental protection performance of the equipment during operation.

[0104] In a possible implementation, S400, according to the operation mode of the thermoelectric conversion device connected to the exhaust gas source device, determines the energy recovery effect of the thermoelectric conversion device, including:

[0105] S410, determining estimated energy conversion data of the thermoelectric conversion device under the operating mode according to the operating mode of the thermoelectric conversion device connected to the exhaust gas source equipment; wherein the estimated energy conversion data is used to reflect the ideal thermoelectric conversion capacity of the optimized thermoelectric conversion device.

[0106] It can be understood that the estimated energy conversion data of the thermoelectric conversion device can be calculated based on the data under the operating mode. The estimated energy conversion data here is an idealized energy conversion index. Through the set operating mode and the input exhaust gas parameters (such as temperature, flow rate and pressure), combined with the structural characteristics, material properties and other technical information of the device, the exhaust gas energy conversion data that can be achieved by the thermoelectric conversion device under the operating mode conditions is derived, that is, the estimated energy conversion data. The estimated energy conversion data is the basis of theoretical analysis. By recalculating all relevant parameters in the working process under the set operating mode, the ideal energy conversion efficiency that can be achieved under the optimized operating conditions is calculated, which is used for the subsequent actual operating effect evaluation to provide a benchmark value.

[0107] S420, obtaining actual energy conversion data of the thermoelectric conversion device in the operation mode.

[0108] It can be understood that the operation of energy recovery can be monitored in real time to capture the actual energy conversion data of the thermoelectric conversion device in the operating mode. The actual energy conversion data is the real energy data that has been generated during monitoring, reflecting the actual energy utilization of the thermoelectric conversion device in a specific environment. The actual energy conversion data can only infinitely approach the estimated energy conversion data, but cannot be equal to the estimated energy conversion data. The actual energy conversion data directly reflects the performance of the thermoelectric conversion device, and combined with the operating mode, the energy recovery level of the equipment under the current working conditions can be analyzed.

[0109] S430, determining the energy recovery effect of the thermoelectric conversion device based on the heat information that can be captured by the thermoelectric conversion device during the exhaust gas treatment process, the estimated energy conversion data and the actual energy conversion data.

[0110] It can be understood that the final energy recovery effect of the thermoelectric conversion device can be determined based on the calculated and obtained estimated energy conversion data and actual energy conversion data. By comparing the ideal estimated data and the actual energy conversion data, it can be seen whether the actual performance of the equipment is close to the theoretical maximum value. If there is a significant gap, it means that the current operating state of the equipment may not be within the optimal range, or further parameter adjustment is required. By comparing the heat information that the thermoelectric conversion device can capture during the treatment of exhaust gas and the actual energy conversion data, the actual energy conversion situation can be identified. The energy recovery effect of the equipment can be determined through data analysis in combination with energy efficiency optimization and actual energy conversion conditions to ensure maximum energy utilization.

[0111] Optionally, S430, based on the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas, the estimated energy conversion data and the actual energy conversion data, determining the energy recovery effect of the thermoelectric conversion device includes:

[0112] S431, determining the actual conversion effect of the thermoelectric conversion device based on the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas and the actual energy conversion data.

[0113] It can be understood that the heat information that the thermoelectric conversion device can capture during the exhaust gas treatment process is the heat information that the exhaust gas can generate, and the actual energy conversion data is the actual energy recovered. The heat information that the exhaust gas can generate and the actual energy recovered can be divided and compared to determine a mathematical result.

[0114] Exemplarily, actual conversion effect=actual energy conversion data / heat information.

[0115] S432: Determine the parameter optimization effect of the thermoelectric conversion device based on the estimated energy conversion data and the actual energy conversion data.

[0116] It is understandable that the estimated energy conversion data and the actual energy conversion data can be compared to evaluate the effect of equipment parameter optimization. If the actual energy conversion data is closer to the estimated data after parameter adjustment, it means that the equipment parameter optimization is effective and can improve the operating efficiency and energy recovery effect of the device. It proves the necessity of constantly adjusting the operating parameters to approach the optimal conversion state. Through continuous optimization, unnecessary energy loss can be reduced and the overall energy efficiency of the equipment can be improved.

[0117] Exemplarily, in order to determine the comprehensive results of the actual conversion effect and the parameter optimization effect on the same scale, a mathematical result can also be determined for the parameter optimization effect of the thermoelectric conversion device, parameter optimization effect = actual energy conversion data / estimated energy conversion data.

[0118] S433, determining the energy recovery effect of the thermoelectric conversion device according to the actual conversion effect and parameter optimization effect of the thermoelectric conversion device.

[0119] It is understandable that a comprehensive energy efficiency index can be established to reflect the overall performance and energy recovery capability of the equipment in treating exhaust gas. Based on the actual conversion effect and parameter optimization effect, the determination of the energy recovery effect can be calculated by comprehensively considering the heat capture information, estimated energy conversion data and actual energy conversion data to calculate a final energy recovery index. The energy recovery index shows the actual energy utilization efficiency of the equipment in the current state, which can clarify the energy loss of the equipment during operation, improve the energy recovery efficiency, and reduce the subsequent maintenance costs.

[0120] For example, the calculation can be simplified and the energy recovery effect can be obtained by mathematical methods. The energy recovery effect can be defined as the product of the actual energy conversion effect and the parameter optimization effect, that is: energy recovery effect = actual conversion effect × parameter optimization effect. By mathematical calculation, the comparison of the actual conversion effect and the parameter optimization effect can be unified on a comprehensive indicator. For example, if the actual conversion effect of the device is 0.85, it means that the actual energy conversion efficiency is 85%; and the parameter optimization effect is 0.9, which means that the device has been close to the ideal state by adjusting the parameters by 90%. Then the final energy recovery effect is: energy recovery effect = 0.85 × 0.9 = 0.765. The results show that after optimization, the energy index of the equipment reached 76.5%, that is, it can effectively use the captured heat information to convert it into recoverable energy. Although there is a certain loss, the overall efficiency is high, which improves the energy recovery efficiency and reduces the subsequent maintenance cost.

[0121] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0122] Corresponding to the industrial waste gas energy recovery method described in the above embodiment, the embodiment of the present application also provides an industrial waste gas energy recovery system, and each unit of the system can implement each step of the industrial waste gas energy recovery method. Figure 5 A structural block diagram of an industrial waste gas energy recovery system provided in an embodiment of the present application is shown. For ease of explanation, only the parts related to the embodiment of the present application are shown.

[0123] Reference Figure 5 , the industrial waste gas energy recovery system includes:

[0124] The first unit is used to obtain first device information of the exhaust gas source device when it is detected that the exhaust gas temperature in the industrial production process exceeds a preset threshold;

[0125] A second unit is used to query the thermoelectric conversion device connected to the exhaust gas source device based on the first device information of the exhaust gas source device, and determine the second device information of the thermoelectric conversion device;

[0126] An operation unit, used to set an operation mode of the thermoelectric conversion device connected to the exhaust gas source device according to the first device information and the second device information; wherein the operation mode is used to control the operation of the thermoelectric conversion device;

[0127] An evaluation unit is used to determine the energy recovery effect of the thermoelectric conversion device according to the operation mode of the thermoelectric conversion device connected to the exhaust gas source equipment.

[0128] It should be noted that the information interaction, execution process, etc. between the above-mentioned systems / units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0129] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the system can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit module can exist physically separately, or two or more unit modules can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0130] The present application also provides an industrial waste gas energy recovery device, Figure 6 This is a schematic diagram of the structure of an industrial waste gas energy recovery device provided in one embodiment of the present application. Figure 6 As shown, the industrial waste gas energy recovery device 6 of this embodiment includes: at least one processor 60 ( Figure 6Only one is shown), at least one memory 61 ( Figure 6 Only one is shown) and a computer program 62 stored in the at least one memory 61 and executable on the at least one processor 60. When the processor 60 executes the computer program 62, the industrial waste gas energy recovery equipment 6 implements the steps in any of the above-mentioned industrial waste gas energy recovery method embodiments, or the industrial waste gas energy recovery equipment 6 implements the functions of each unit in the above-mentioned system embodiments.

[0131] Exemplarily, the computer program 62 may be divided into one or more units, which are stored in the memory 61 and executed by the processor 60 to complete the present application. The one or more units may be a series of computer program instruction segments capable of completing specific functions, which are used to describe the execution process of the computer program 62 in the industrial waste gas energy recovery device 6.

[0132] The industrial waste gas energy recovery device 6 can be a computing device such as a desktop computer, a notebook, a PDA, and a cloud server. The industrial waste gas energy recovery device may include, but is not limited to, a processor 60 and a memory 61. Those skilled in the art can understand that Figure 6 It is only an example of the industrial waste gas energy recovery device 6 and does not constitute a limitation of the industrial waste gas energy recovery device 6. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, it may also include input and output devices, network access devices, buses, etc.

[0133] The processor 60 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0134] In some embodiments, the memory 61 may be an internal storage unit of the industrial waste gas energy recovery device 6, such as a hard disk or memory of the industrial waste gas energy recovery device 6. In other embodiments, the memory 61 may also be an external storage device of the industrial waste gas energy recovery device 6, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the industrial waste gas energy recovery device 6. Further, the memory 61 may also include both the internal storage unit of the industrial waste gas energy recovery device 6 and an external storage device. The memory 61 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program, etc. The memory 61 may also be used to temporarily store data that has been output or is to be output.

[0135] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0136] An embodiment of the present application provides a computer program product. When the computer program product is run on an industrial waste gas energy recovery device, the industrial waste gas energy recovery device implements the steps in any of the above-mentioned method embodiments.

[0137] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the industrial waste gas energy recovery equipment, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), electric carrier signal, telecommunication signal and software distribution medium. For example, U disk, mobile hard disk, disk or optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.

[0138] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0139] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0140] In the embodiments provided in the present application, it should be understood that the disclosed industrial waste gas energy recovery system / industrial waste gas energy recovery equipment and method can be implemented in other ways. For example, the industrial waste gas energy recovery system / industrial waste gas energy recovery equipment 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, such as 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 an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0141] 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.

[0142] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for recovering energy from industrial waste gas, characterized in that: include: When it is detected that the temperature of the exhaust gas in the industrial production process exceeds a preset threshold, first device information of the exhaust gas source device is obtained; Based on the first device information of the exhaust gas source device, query the thermoelectric conversion device connected to the exhaust gas source device to determine the second device information of the thermoelectric conversion device; According to the first device information and the second device information, setting the operation mode of the thermoelectric conversion device connected to the exhaust gas source device; wherein the operation mode is used to control the operation of the thermoelectric conversion device; According to the operation mode of the thermoelectric conversion device connected to the exhaust gas source equipment, the energy recovery effect of the thermoelectric conversion device is determined.

2. The industrial waste gas energy recovery method according to claim 1, characterized in that: The querying of the thermoelectric conversion device connected to the exhaust gas source device based on the first device information of the exhaust gas source device to determine the second device information of the thermoelectric conversion device includes: Based on the first device information of the exhaust gas source device, query the thermoelectric conversion device connected to the exhaust gas source device to determine the identification information of the thermoelectric conversion device; The second device information of the thermoelectric conversion device is queried and determined according to the identification information of the thermoelectric conversion device.

3. The industrial waste gas energy recovery method according to claim 1, characterized in that: The first device information includes exhaust gas temperature, exhaust gas pressure and exhaust gas flow rate; The step of setting the operation mode of the thermoelectric conversion device connected to the exhaust gas source device according to the first device information and the second device information includes: Determining the amount of heat that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas according to the exhaust gas temperature, the exhaust gas pressure, the exhaust gas flow rate and the second device information; According to the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas and the second device information, determine the exhaust gas energy conversion data converted by the thermoelectric conversion device; wherein the exhaust gas energy conversion data is used to reflect the electric energy converted by the thermoelectric conversion device; The operation mode of the thermoelectric conversion device connected to the exhaust gas source equipment is set according to the exhaust gas energy conversion data converted by the thermoelectric conversion device.

4. The industrial waste gas energy recovery method according to claim 3, characterized in that: The determining, based on the exhaust gas temperature, the exhaust gas pressure, the exhaust gas flow rate and the second device information, the heat information that can be captured by the thermoelectric conversion device during the exhaust gas treatment process includes: determining a heat exchange area of ​​the thermoelectric conversion device according to the second device information; The amount of heat that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas is calculated based on the exhaust gas temperature, the exhaust gas pressure, the exhaust gas flow rate and the heat exchange area.

5. The industrial waste gas energy recovery method according to claim 3, characterized in that: The step of determining the waste gas energy conversion data converted by the thermoelectric conversion device according to the heat information that can be captured by the thermoelectric conversion device in the process of treating the waste gas and the second device information includes: Determine the displacement loss amount of the thermoelectric conversion device according to the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas and the second device information; wherein the displacement loss amount is used to reflect the energy loss of thermoelectric conversion of the thermoelectric conversion device; The exhaust gas energy conversion data converted by the thermoelectric conversion device is determined according to the heat information and the displacement loss amount that can be captured by the thermoelectric conversion device during the exhaust gas treatment process.

6. The industrial waste gas energy recovery method according to claim 5, characterized in that: The step of determining the displacement loss of the thermoelectric conversion device according to the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas and the second device information includes: Determine, according to the second device information, an actual heat exchange area, a standard thermal resistance, and a unit heat exchange efficiency loss value corresponding to a reduction in the unit thermal resistance of the thermoelectric conversion device during the exhaust gas treatment process; According to the actual heat exchange area of ​​the thermoelectric conversion device, an influencing factor of the heat exchange efficiency of the thermoelectric conversion device in the process of treating exhaust gas is obtained; Determining a first heat exchange efficiency of the thermoelectric conversion device in the process of treating exhaust gas according to the second device information and the influencing factor; wherein the first heat exchange efficiency is an ideal heat exchange efficiency of an actual heat exchange area of ​​the thermoelectric conversion device; Determine the second heat exchange efficiency of the thermoelectric conversion device in the process of treating the exhaust gas based on the first heat exchange efficiency of the thermoelectric conversion device in the process of treating the exhaust gas, the standard thermal resistance, and the unit heat exchange efficiency loss value corresponding to the reduction of the unit thermal resistance; wherein the second heat exchange efficiency is the actual heat exchange efficiency of the actual heat exchange area of ​​the thermoelectric conversion device; The displacement loss amount of the thermoelectric conversion device is determined according to the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas and the second heat exchange efficiency.

7. The industrial waste gas energy recovery method according to claim 5, characterized in that: The step of setting the operation mode of the thermoelectric conversion device connected to the exhaust gas source device according to the exhaust gas energy conversion data converted by the thermoelectric conversion device comprises: determining a real-time conversion level of the exhaust gas energy conversion data according to the exhaust gas energy conversion data converted by the thermoelectric conversion device; Calculating an operating parameter set of a thermoelectric conversion device connected to the exhaust gas source device according to the real-time conversion level of the exhaust gas energy conversion data; wherein the operating parameter set is used to optimize the thermoelectric conversion efficiency of the thermoelectric conversion device; The operation mode of the thermoelectric conversion device connected to the exhaust gas source device is set according to the operation parameter set of the thermoelectric conversion device connected to the exhaust gas source device.

8. The industrial waste gas energy recovery method according to claim 3, characterized in that: The step of determining the energy recovery effect of the thermoelectric conversion device according to the operation mode of the thermoelectric conversion device connected to the exhaust gas source device comprises: Determine, according to the operation mode of the thermoelectric conversion device connected to the exhaust gas source device, estimated energy conversion data of the thermoelectric conversion device under the operation mode; wherein the estimated energy conversion data is used to reflect the ideal thermoelectric conversion capacity of the thermoelectric conversion device after optimization; Acquiring actual energy conversion data of the thermoelectric conversion device in the operating mode; The energy recovery effect of the thermoelectric conversion device is determined based on the heat information that can be captured by the thermoelectric conversion device during the exhaust gas treatment process, the estimated energy conversion data and the actual energy conversion data.

9. The industrial waste gas energy recovery method according to claim 8, characterized in that: The determining of the energy recovery effect of the thermoelectric conversion device based on the heat information that can be captured by the thermoelectric conversion device in the process of treating the exhaust gas, the estimated energy conversion data and the actual energy conversion data includes: Determining an actual conversion effect of the thermoelectric conversion device based on the heat information that can be captured by the thermoelectric conversion device during the exhaust gas treatment process and the actual energy conversion data; Determining a parameter optimization effect of the thermoelectric conversion device based on the estimated energy conversion data and the actual energy conversion data; The energy recovery effect of the thermoelectric conversion device is determined according to the actual conversion effect of the thermoelectric conversion device and the parameter optimization effect.

10. An industrial waste gas energy recovery system, characterized in that: include: The first unit is used to obtain first device information of the exhaust gas source device when it is detected that the exhaust gas temperature in the industrial production process exceeds a preset threshold; A second unit is used to query the thermoelectric conversion device connected to the exhaust gas source device based on the first device information of the exhaust gas source device, and determine the second device information of the thermoelectric conversion device; An operation unit, used to set an operation mode of the thermoelectric conversion device connected to the exhaust gas source device according to the first device information and the second device information; wherein the operation mode is used to control the operation of the thermoelectric conversion device; An evaluation unit is used to determine the energy recovery effect of the thermoelectric conversion device according to the operation mode of the thermoelectric conversion device connected to the exhaust gas source equipment.

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