A constant temperature bath system enriched with gas and liquid phase

Abstract

The present application relates to the technical fields of constant temperature heating, and discloses a constant temperature bath system for enriching gas and liquid phase, which comprises a waste gas circulating device, a constant temperature device and a control device, the waste gas circulating device is used for circulating waste gas into the constant temperature device to enrich heavy metals, and the control device is used for controlling the heating mode of the constant temperature device; a collection unit is used for collecting the real-time temperature of the waste gas and the target temperature of the constant temperature device to determine the heating mode; when the temperature difference is large, a processing unit is used for intermittent heating with high power, and the maximum power and the intermittent duration of the intermittent heating with high power are determined according to the heat loss; the real-time temperatures of several positions in the constant temperature solution are collected in real time, a temperature distribution model is established, and the average temperature of the constant temperature solution is obtained; and a judging unit is used for obtaining the temperature change rate according to the average temperature at the intermittent end time and the target temperature, and determining whether to adjust the intermittent duration. The present application improves the efficiency and precision of the enrichment of heavy metals in waste gas, and reduces manual intervention through intelligent temperature control and self-adaptive adjustment.

Description

Technical Field

[0001] This invention relates to the field of constant temperature heating technology, and more specifically, to a constant temperature bath system for enriching gas and liquid phases. Background Technology

[0002] In environmental science and industrial pollution control, the detection of heavy metals in waste gas is a crucial task. Heavy metals, such as lead (Pb), mercury (Hg), cadmium (Cd), and arsenic (As), pose significant threats to ecosystems and human health. Therefore, accurate and reliable detection of heavy metal content in waste gas is essential for environmental protection and health safety. Heavy metal detection in waste gas requires collecting gas samples and enriching and extracting the heavy metals for subsequent analysis and measurement. Commonly used detection methods include inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectrometry (AAS), which require heavy metal enrichment and pretreatment.

[0003] In the heavy metal enrichment process, a constant-temperature bath is used to diffuse and mix the gas with the liquid, thereby transferring heavy metals from the waste gas into the liquid phase, increasing the heavy metal concentration, improving the enrichment efficiency in the liquid phase, and enhancing detection accuracy. However, current constant-temperature systems are mostly manually operated, which can easily lead to temperature fluctuations, affecting the stability of the enrichment process. They also lack automation and real-time adjustment capabilities, making it impossible to dynamically optimize operating conditions according to detection requirements. Furthermore, the non-uniformity of gas-liquid mixing may reduce the enrichment effect.

[0004] Therefore, there is an urgent need for a constant temperature bath system for enriching gas and liquid phases to solve the problems existing in the current technology. Summary of the Invention

[0005] In view of this, the present invention proposes a constant temperature bath system for enriching gas and liquid phases, which aims to solve the problem of lack of automation and real-time adjustment functions in the current constant temperature enrichment of heavy metals in waste gas, thus affecting the enrichment stability.

[0006] This invention proposes a constant-temperature bath system for enriching gas and liquid phases, comprising:

[0007] The system includes an exhaust gas recirculation device, a constant temperature device, and a control device. The exhaust gas recirculation device is connected to the constant temperature device. The exhaust gas recirculation device is used to introduce exhaust gas into the constant temperature device for heavy metal enrichment. The constant temperature device includes a constant temperature solution for reacting with the exhaust gas to enrich heavy metals. The control device is electrically connected to the exhaust gas recirculation device and the constant temperature device and is used to control the heating mode of the constant temperature device. The control device includes a data acquisition unit, a processing unit, and a judgment unit.

[0008] The acquisition unit is configured to acquire the real-time temperature of the exhaust gas and the target temperature of the constant temperature device, compare the real-time temperature with the target temperature, and determine the heating mode based on the comparison result.

[0009] The processing unit is configured to use high-power intermittent heating when the temperature difference is greater than a preset temperature difference threshold, and to obtain the heat loss value based on the real-time temperature and the target temperature, and to determine the maximum power and intermittent duration of the high-power intermittent heating based on the heat loss value.

[0010] The processing unit is also configured to collect the real-time temperature at several points within the constant-temperature solution, establish a temperature distribution model, and obtain the average temperature of the constant-temperature solution based on the temperature distribution model.

[0011] The judgment unit is configured to collect the average temperature of the constant temperature solution at the end of the interval, obtain the temperature change rate based on the average temperature at the end of the interval and the target temperature, and determine whether to adjust the interval duration based on the temperature change rate; when it is determined that the interval duration should be adjusted, the unit operates with the adjusted interval duration.

[0012] Furthermore, when the acquisition unit determines the heating mode based on the comparison results, it includes:

[0013] The acquisition unit is also configured to obtain a temperature difference value based on the real-time temperature and the target temperature, wherein the temperature difference value is the difference between the target temperature and the real-time temperature, compare the temperature difference value with a preset temperature difference threshold, and determine the heating mode based on the comparison result.

[0014] When the temperature difference is greater than the preset temperature difference threshold, the acquisition unit determines that the heating mode of the constant temperature device is high-power intermittent heating;

[0015] When the temperature difference is less than or equal to a preset temperature difference threshold, the acquisition unit determines that the heating mode of the constant temperature device is low-power continuous heating.

[0016] Furthermore, the processing unit obtains the heat loss value based on the real-time temperature and the target temperature, and the heat loss value is calculated using the following formula:

[0017]

[0018] in, Indicates thermal loss. This indicates the density of the exhaust gas. This indicates the volumetric velocity of the exhaust gas. The specific heat capacity of the exhaust gas. Indicates the target temperature. This indicates the real-time temperature of the exhaust gas.

[0019] Furthermore, when the processing unit determines the maximum power and intermittent duration of the high-power intermittent heating based on the thermal loss value, it includes:

[0020] The processing unit is further configured to compare the heat loss value with a first preset heat loss value and a second preset heat loss value, respectively, and determine the maximum power and intermittent duration of the high-power intermittent heating based on the comparison result, wherein the first preset heat loss value is less than the second preset heat loss value.

[0021] When the heat loss value is less than or equal to the first preset heat loss value, the processing unit determines the maximum power of the high-power intermittent heating to be the first preset power and the intermittent duration to be the first preset intermittent duration;

[0022] When the heat loss value is greater than the first preset heat loss value and less than or equal to the second preset heat loss value, the processing unit determines the maximum power of the high-power intermittent heating to be the second preset power and the intermittent duration to be the second preset intermittent duration.

[0023] When the heat loss value is greater than the second preset heat loss value, the processing unit determines that the maximum power of the high-power intermittent heating is the third preset power and the intermittent duration is the third preset intermittent duration;

[0024] Wherein, the first preset power is less than the second preset power, the second preset power is less than the third preset power, the first preset interval duration is greater than the second preset interval duration, and the second preset interval duration is greater than the third preset interval duration.

[0025] Furthermore, when the processing unit obtains the average temperature of the isothermal solution based on the temperature distribution model, it includes:

[0026] The processing unit is further configured to obtain temperature data at the center of the isothermal solution based on the temperature distribution model, and to obtain the average temperature based on the temperature data at the center of the isothermal solution using the following formula:

[0027]

[0028] Where wi represents the weight of the i-th measurement point, Ti represents the temperature of the i-th measurement point, n represents the total number of measurement points, and Tavg represents the average temperature.

[0029] Furthermore, when the processing unit obtains the average temperature of the isothermal solution based on the temperature distribution model, it further includes:

[0030] The weight wi of the measurement point is calculated using the following formula:

[0031]

[0032]

[0033] Where wi represents the weight of the i-th measurement point, Wi represents the weighting factor of the i-th measurement point, Wj represents the sum of the weighting factors of all measurement points; di represents the distance between the i-th measurement point and the center, ΔTi represents the temperature gradient between the i-th measurement point and the center, and ΔTj represents the temperature gradient between the j-th measurement point and the center.

[0034] Furthermore, when the determination unit obtains the temperature change rate based on the average temperature at the end of the intermittent period and the target temperature, it includes:

[0035] The rate of temperature change is calculated using the following formula:

[0036]

[0037] Where E represents the rate of temperature change, Tm represents the target temperature, Tavg1 represents the average temperature at the end of the interval, and t represents the interval duration.

[0038] Furthermore, when the determination unit determines whether to adjust the interval duration based on the temperature change rate, it includes:

[0039] The judgment unit compares the temperature change rate with a preset temperature change rate threshold, and determines whether to adjust the interval duration based on the comparison result;

[0040] When the temperature change rate is less than or equal to the temperature change rate threshold, the judgment unit determines that the interval duration should not be adjusted.

[0041] When the temperature change rate is greater than the temperature change rate threshold, the judgment unit determines to adjust the interval duration.

[0042] Furthermore, when the determination unit determines to adjust the interval duration, it includes:

[0043] A first preset temperature change rate is set in advance, and the first preset temperature change rate is greater than the temperature change rate threshold. The temperature change rate is compared with the first preset temperature change rate and the temperature change rate threshold respectively, and the interval duration is adjusted according to the comparison result.

[0044] Furthermore, when the judgment unit adjusts the interval duration based on the comparison result, it includes:

[0045] When the temperature change rate is greater than the temperature change rate threshold and less than or equal to the first preset temperature change rate, a first adjustment coefficient is determined to adjust the interval duration to obtain the adjusted interval duration.

[0046] When the temperature change rate is greater than the first preset temperature change rate, a second adjustment coefficient is determined to adjust the interval duration to obtain the adjusted interval duration;

[0047] Wherein, the first adjustment coefficient is greater than the second adjustment coefficient, and the values ​​of the first adjustment coefficient and the second adjustment coefficient are in the range of 0-1.

[0048] Compared with existing technologies, the advantages of this invention are as follows: The acquisition unit collects temperature data of the exhaust gas and the constant temperature device in real time and compares it with the target temperature, ensuring that the heating mode can be dynamically adjusted according to temperature differences, thereby avoiding temperature fluctuations caused by manual operation. This improves the efficiency and detection accuracy of heavy metal enrichment. When the temperature difference is large, the processing unit adopts a high-power intermittent heating strategy, and calculates the required heating power and intermittent duration based on the difference between the real-time temperature and the target temperature. This rapidly reaches the target temperature, reducing unnecessary energy consumption. The processing unit establishes a temperature distribution model of the constant temperature solution through multi-point temperature acquisition and calculates the average temperature. This overcomes the non-uniformity problem caused by single-point temperature measurement, ensuring the stability and uniformity of the solution temperature and improving temperature control accuracy. At the end of each heating intermittent, the judgment unit evaluates the average temperature change rate of the constant temperature solution and automatically adjusts the intermittent duration. This enables flexible adjustment of the heating strategy according to actual temperature changes, thereby improving the stability and efficiency of the enrichment process. Attached Figure Description

[0049] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0050] Figure 1 This is a structural block diagram of a constant temperature bath system for enriching gas and liquid phases provided in an embodiment of the present invention. Detailed Implementation

[0051] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0052] In some embodiments of this application, see Figure 1As shown, this embodiment provides a constant-temperature bath system for enriching gas and liquid phases, including: a waste gas recirculation device, a constant-temperature device, and a control device, wherein...

[0053] The exhaust gas recirculation device is connected to the constant temperature device. The exhaust gas recirculation device is used to introduce exhaust gas into the constant temperature device for heavy metal enrichment. The constant temperature device includes a constant temperature solution, which is used to react with the exhaust gas to enrich heavy metals. The control device is electrically connected to the exhaust gas recirculation device and the constant temperature device and is used to control the heating mode of the constant temperature device. The control device includes a data acquisition unit, a processing unit and a judgment unit.

[0054] The acquisition unit is configured to collect the real-time temperature of the exhaust gas and the target temperature of the thermostat, compare the real-time temperature with the target temperature, and determine the heating mode based on the comparison result.

[0055] The processing unit is configured to use high-power intermittent heating when the temperature difference is greater than a preset temperature difference threshold, and to obtain the heat loss value based on the real-time temperature and the target temperature, and to determine the maximum power and intermittent duration of the high-power intermittent heating based on the heat loss value;

[0056] The processing unit is also configured to collect the real-time temperature at several points in the constant-temperature solution, establish a temperature distribution model, and obtain the average temperature of the constant-temperature solution based on the temperature distribution model.

[0057] The judgment unit is configured to collect the average temperature of the constant temperature solution at the end of the interval, obtain the temperature change rate based on the average temperature at the end of the interval and the target temperature, and determine whether to adjust the interval duration based on the temperature change rate; when it is determined that the interval duration should be adjusted, the unit will run with the adjusted interval duration.

[0058] Understandably, the exhaust gas recirculation device is connected to the constant temperature device, responsible for introducing exhaust gas containing heavy metals into the constant temperature device, where it reacts with the solution, transferring the heavy metals from the gas phase to the liquid phase, thus achieving heavy metal enrichment. The constant temperature device contains a constant temperature solution for heavy metal enrichment. This solution contacts the exhaust gas, capturing and dissolving the heavy metals in the exhaust gas. The temperature of the constant temperature device is dynamically adjusted by a control device to ensure optimal reaction conditions. The control device is electrically connected to both the exhaust gas recirculation device and the constant temperature device, used to control and adjust the heating mode of the constant temperature device. The control device includes a data acquisition unit, a processing unit, and a judgment unit. The data acquisition unit is responsible for real-time monitoring of the exhaust gas temperature and the target temperature of the constant temperature device. It compares the actual measured temperature with the set target temperature to determine whether the heating mode needs adjustment. When the data acquisition unit detects a temperature difference greater than a preset threshold, the processing unit activates a high-power intermittent heating mode. By calculating the heat loss between the exhaust gas temperature and the target temperature of the constant temperature device, the processing unit can determine the required heating power and intermittent duration, optimizing heating efficiency. Furthermore, the processing unit also collects temperature data from multiple locations within the constant temperature solution in real time to establish a temperature distribution model. By analyzing the temperature distribution model, the processing unit can calculate the average temperature of the solution to ensure the uniformity and stability of the system temperature. At the end of each heating interval, the decision unit evaluates the average temperature of the isothermal solution and compares it to the target temperature. Based on the rate of temperature change, the decision unit determines whether the interval duration for the next cycle needs to be adjusted. If adjustment is required, the system will operate according to the new interval duration to maintain optimal heating control and temperature stability.

[0059] Understandably, this system enables real-time temperature monitoring and adjustment, dynamically modifying the heating strategy to ensure the effective transfer of heavy metals from the waste gas to the constant-temperature solution. High precision and stability in temperature control are achieved, overcoming the problems of temperature fluctuations and low reaction efficiency caused by traditional manual operation. Through multi-point temperature acquisition and intelligent judgment, the heating cycle can be automatically optimized to maintain the uniformity and stability of the solution temperature, thereby improving the efficiency and detection accuracy of the enrichment process.

[0060] In some embodiments of this application, when the acquisition unit determines the heating mode based on the comparison result, the acquisition unit is further configured to obtain a temperature difference value based on the real-time temperature and the target temperature, wherein the temperature difference value is the difference between the target temperature and the real-time temperature, compare the temperature difference value with a preset temperature difference threshold, and determine the heating mode based on the comparison result.

[0061] Specifically, when the temperature difference is greater than the preset temperature difference threshold, the acquisition unit determines that the heating mode of the constant temperature device is high-power intermittent heating; when the temperature difference is less than or equal to the preset temperature difference threshold, the acquisition unit determines that the heating mode of the constant temperature device is low-power continuous heating.

[0062] Understandably, when the temperature difference exceeds the preset temperature difference threshold, it means the actual temperature is significantly lower than the target temperature, requiring a rapid increase in temperature. A high-power intermittent heating mode is employed to quickly reduce the temperature difference. This mode provides high-power heating for short periods, pausing heating during intervals to allow the temperature to gradually equalize. When the temperature difference is less than or equal to the preset temperature difference threshold, it indicates that the actual temperature has approached or reached the target temperature. At this point, the system switches to a low-power continuous heating mode. Low-power continuous heating stably maintains the temperature within the target range, preventing overheating and reducing energy consumption. Through real-time monitoring and adjustment, the temperature is precisely controlled under dynamic conditions, maintaining temperature stability and uniformity.

[0063] In some embodiments of this application, the processing unit obtains the thermal loss value based on the real-time temperature and the target temperature, and the thermal loss value is calculated using the following formula:

[0064]

[0065] in, Indicates thermal loss. This indicates the density of the exhaust gas. This indicates the volumetric velocity of the exhaust gas. The specific heat capacity of the exhaust gas. Indicates the target temperature. This indicates the real-time temperature of the exhaust gas.

[0066] Understandably, by calculating the heat loss value and accurately adjusting the heating power based on the actual heat loss, the required heat is compensated. This ensures that the constant temperature system can quickly reach and maintain the set target temperature. Because the processing unit can continuously monitor and calculate the heat loss value, it can make preventative adjustments before temperature fluctuations occur, maintaining the temperature stability of the solution.

[0067] In some embodiments of this application, when the processing unit determines the maximum power and intermittent duration of high-power intermittent heating based on the thermal loss value, the processing unit is further configured to compare the thermal loss value with a first preset thermal loss value and a second preset thermal loss value respectively, and determine the maximum power and intermittent duration of high-power intermittent heating based on the comparison result, wherein the first preset thermal loss value is less than the second preset thermal loss value.

[0068] Specifically, when the thermal loss is less than or equal to the first preset thermal loss, the processing unit determines the maximum power of the high-power intermittent heating as the first preset power and the intermittent duration as the first preset intermittent duration; when the thermal loss is greater than the first preset thermal loss and less than or equal to the second preset thermal loss, the processing unit determines the maximum power of the high-power intermittent heating as the second preset power and the intermittent duration as the second preset intermittent duration; when the thermal loss is greater than the second preset thermal loss, the processing unit determines the maximum power of the high-power intermittent heating as the third preset power and the intermittent duration as the third preset intermittent duration; wherein, the first preset power is less than the second preset power, the second preset power is less than the third preset power, the first preset intermittent duration is greater than the second preset intermittent duration, and the second preset intermittent duration is greater than the third preset intermittent duration.

[0069] Understandably, classifying heat loss values ​​allows for flexible adjustment of heating power and intermittent duration based on actual heat demand, thereby precisely controlling temperature. This gives the system high flexibility and adaptability, enabling it to automatically optimize the heating mode under different operating environments and load conditions. This helps to better cope with different operating conditions, ensure a stable temperature environment, and the dynamic adjustment mechanism avoids unnecessary energy waste.

[0070] In some embodiments of this application, when the processing unit obtains the average temperature of the isothermal solution according to the temperature distribution model, the processing unit is further configured to obtain temperature data at the center of the isothermal solution according to the temperature distribution model, and obtain the average temperature according to the temperature data at the center of the isothermal solution using the following formula:

[0071]

[0072] Where wi represents the weight of the i-th measurement point, Ti represents the temperature of the i-th measurement point, n represents the total number of measurement points, and Tavg represents the average temperature.

[0073] In some embodiments of this application, when the processing unit obtains the average temperature of the isothermal solution according to the temperature distribution model, it further includes: the weight wi of the measurement point is calculated by the following formula:

[0074]

[0075]

[0076] Where wi represents the weight of the i-th measurement point, Wi represents the weighting factor of the i-th measurement point, Wj represents the sum of the weighting factors of all measurement points; di represents the distance between the i-th measurement point and the center, ΔTi represents the temperature gradient between the i-th measurement point and the center, and ΔTj represents the temperature gradient between the j-th measurement point and the center.

[0077] In some embodiments of this application, when the determining unit obtains the temperature change rate based on the average temperature at the end of the intermittent period and the target temperature, it includes: calculating the temperature change rate using the following formula:

[0078]

[0079] Where E represents the rate of temperature change, Tm represents the target temperature, Tavg1 represents the average temperature at the end of the interval, and t represents the interval duration.

[0080] Understandably, by using weighted averaging and analyzing the comprehensive factors of each measurement point and the central temperature gradient, the accuracy of the actual temperature of the isothermal solution is improved. This avoids the deviation caused by single-point measurements and improves the accuracy of temperature control. Using a temperature change rate calculation method, the temperature change trend is assessed in real time, and the intermittent duration is adjusted promptly to ensure temperature stability under different heating requirements. Dynamic response capability helps maintain the stable state of the isothermal solution near the target temperature and optimizes the heating process. When facing different waste gas flow rates and temperature conditions, considering the relationship between the measurement point and the central temperature allows for automatic adaptation, maintaining optimal operating conditions. This enhances the system's flexibility and adaptability in different application scenarios.

[0081] In some embodiments of this application, when the determination unit determines whether to adjust the interval duration based on the temperature change rate, the determination unit compares the temperature change rate with a preset temperature change rate threshold and determines whether to adjust the interval duration based on the comparison result.

[0082] Specifically, when the temperature change rate is less than or equal to the temperature change rate threshold, the judgment unit determines not to adjust the interval duration; when the temperature change rate is greater than the temperature change rate threshold, the judgment unit determines to adjust the interval duration.

[0083] In some embodiments of this application, when the determination unit determines that the interval duration should be adjusted, the method includes: presetting a first preset temperature change rate, wherein the first preset temperature change rate is greater than a temperature change rate threshold, comparing the temperature change rate with the first preset temperature change rate and the temperature change rate threshold respectively, and adjusting the interval duration according to the comparison result.

[0084] In some embodiments of this application, when the judgment unit adjusts the interval duration based on the comparison result, it includes: when the temperature change rate is greater than the temperature change rate threshold and less than or equal to the first preset temperature change rate, determining a first adjustment coefficient to adjust the interval duration to obtain the adjusted interval duration; when the temperature change rate is greater than the first preset temperature change rate, determining a second adjustment coefficient to adjust the interval duration to obtain the adjusted interval duration; wherein, the first adjustment coefficient is greater than the second adjustment coefficient, and the values ​​of the first adjustment coefficient and the second adjustment coefficient are in the range of 0-1.

[0085] Understandably, by adjusting the intermittent duration and heating power in a timely manner, not only is the temperature of the isothermal solution maintained stable, but it can also respond quickly to temperature changes when needed, thereby improving the overall system stability and efficiency. Unnecessary high-power heating is reduced when the temperature approaches the target value, lowering energy consumption. Employing multi-level temperature change rate assessment and different adjustment coefficients allows for flexible adjustments based on various temperature variations.

[0086] In the above embodiments, the acquisition unit collects temperature data of the exhaust gas and the constant temperature device in real time and compares it with the target temperature to ensure that the heating mode can be dynamically adjusted according to temperature differences, thereby avoiding temperature fluctuations caused by manual operation. This improves the efficiency and detection accuracy of heavy metal enrichment. When the temperature difference is large, the processing unit adopts a high-power intermittent heating strategy and calculates the required heating power and intermittent duration based on the difference between the real-time temperature and the target temperature. This rapidly reaches the target temperature and reduces unnecessary energy consumption. The processing unit establishes a temperature distribution model of the constant temperature solution through multi-point temperature acquisition and calculates the average temperature. This overcomes the non-uniformity problem caused by single-point temperature measurement, ensures the stability and uniformity of the solution temperature, and improves temperature control accuracy. At the end of each heating intermittent, the judgment unit evaluates the average temperature change rate of the constant temperature solution and automatically adjusts the intermittent duration. This enables flexible adjustment of the heating strategy according to actual temperature changes, thereby improving the stability and efficiency of the enrichment process.

[0087] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program goods. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program goods embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0088] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program goods according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0089] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0090] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the functions specified in one or more boxes. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A constant-temperature bath system for enriching gas and liquid phases, characterized in that, include: The system includes an exhaust gas recirculation device, a constant temperature device, and a control device. The exhaust gas recirculation device is connected to the constant temperature device. The exhaust gas recirculation device is used to introduce exhaust gas into the constant temperature device for heavy metal enrichment. The constant temperature device includes a constant temperature solution for reacting with the exhaust gas to enrich heavy metals. The control device is electrically connected to the exhaust gas recirculation device and the constant temperature device and is used to control the heating mode of the constant temperature device. The control device includes a data acquisition unit, a processing unit, and a judgment unit. The acquisition unit is configured to acquire the real-time temperature of the exhaust gas and the target temperature of the constant temperature device, compare the real-time temperature with the target temperature, and determine the heating mode based on the comparison result. The processing unit is configured to use high-power intermittent heating when the temperature difference is greater than a preset temperature difference threshold, and to obtain the heat loss value based on the real-time temperature and the target temperature, and to determine the maximum power and intermittent duration of the high-power intermittent heating based on the heat loss value. The processing unit is also configured to collect the real-time temperature at several points within the constant-temperature solution, establish a temperature distribution model, and obtain the average temperature of the constant-temperature solution based on the temperature distribution model. The judgment unit is configured to collect the average temperature of the constant temperature solution at the end of the interval, obtain the temperature change rate based on the average temperature at the end of the interval and the target temperature, and determine whether to adjust the interval duration based on the temperature change rate; when it is determined that the interval duration should be adjusted, the unit operates with the adjusted interval duration. When the processing unit obtains the average temperature of the isothermal solution according to the temperature distribution model, it includes: The processing unit is further configured to obtain temperature data at the center of the isothermal solution based on the temperature distribution model, and to obtain the average temperature based on the temperature data at the center of the isothermal solution using the following formula: ； Where wi represents the weight of the i-th measurement point, Ti represents the temperature of the i-th measurement point, n represents the total number of measurement points, and Tavg represents the average temperature; When the processing unit obtains the average temperature of the isothermal solution according to the temperature distribution model, it further includes: The weight wi of the measurement point is calculated using the following formula: ； ； Where wi represents the weight of the i-th measurement point, Wi represents the weighting factor of the i-th measurement point, Wj represents the sum of the weighting factors of all measurement points; di represents the distance between the i-th measurement point and the center, ΔTi represents the temperature gradient between the i-th measurement point and the center, and ΔTj represents the temperature gradient between the j-th measurement point and the center.

2. The isothermal bath system for enriching gas and liquid phases according to claim 1, characterized in that, When the acquisition unit determines the heating mode based on the comparison results, it includes: The acquisition unit is also configured to obtain a temperature difference value based on the real-time temperature and the target temperature, wherein the temperature difference value is the difference between the target temperature and the real-time temperature, compare the temperature difference value with a preset temperature difference threshold, and determine the heating mode based on the comparison result. When the temperature difference is greater than the preset temperature difference threshold, the acquisition unit determines that the heating mode of the constant temperature device is high-power intermittent heating; When the temperature difference is less than or equal to a preset temperature difference threshold, the acquisition unit determines that the heating mode of the constant temperature device is low-power continuous heating.

3. The isothermal bath system for enriching gas and liquid phases according to claim 1, characterized in that, The processing unit obtains the thermal loss value based on the real-time temperature and the target temperature, and the thermal loss value is calculated using the following formula: ； in, Indicates thermal loss. This indicates the density of the exhaust gas. This indicates the volumetric velocity of the exhaust gas. The specific heat capacity of the exhaust gas. Indicates the target temperature. This indicates the real-time temperature of the exhaust gas.

4. The isothermal bath system for enriching gas and liquid phases according to claim 3, characterized in that, When the processing unit determines the maximum power and intermittent duration of the high-power intermittent heating based on the thermal loss value, it includes: The processing unit is further configured to compare the heat loss value with a first preset heat loss value and a second preset heat loss value, respectively, and determine the maximum power and intermittent duration of the high-power intermittent heating based on the comparison result, wherein the first preset heat loss value is less than the second preset heat loss value. When the heat loss value is less than or equal to the first preset heat loss value, the processing unit determines the maximum power of the high-power intermittent heating to be the first preset power and the intermittent duration to be the first preset intermittent duration; When the heat loss value is greater than the first preset heat loss value and less than or equal to the second preset heat loss value, the processing unit determines the maximum power of the high-power intermittent heating to be the second preset power and the intermittent duration to be the second preset intermittent duration. When the heat loss value is greater than the second preset heat loss value, the processing unit determines that the maximum power of the high-power intermittent heating is the third preset power and the intermittent duration is the third preset intermittent duration; Wherein, the first preset power is less than the second preset power, the second preset power is less than the third preset power, the first preset interval duration is greater than the second preset interval duration, and the second preset interval duration is greater than the third preset interval duration.

5. The isothermal bath system for enriching gas and liquid phases according to claim 1, characterized in that, When the judgment unit obtains the temperature change rate based on the average temperature at the end of the intermittent period and the target temperature, it includes: The rate of temperature change is calculated using the following formula: ； Where E represents the rate of temperature change, Tm represents the target temperature, Tavg1 represents the average temperature at the end of the interval, and t represents the interval duration.

6. The isothermal bath system for enriching gas and liquid phases according to claim 5, characterized in that, When the judgment unit determines whether to adjust the interval duration based on the temperature change rate, it includes: The judgment unit compares the temperature change rate with a preset temperature change rate threshold, and determines whether to adjust the interval duration based on the comparison result; When the temperature change rate is less than or equal to the temperature change rate threshold, the judgment unit determines that the interval duration should not be adjusted. When the temperature change rate is greater than the temperature change rate threshold, the judgment unit determines to adjust the interval duration.

7. The isothermal bath system for enriching gas and liquid phases according to claim 6, characterized in that, When the determination unit determines that the interval duration should be adjusted, it includes: A first preset temperature change rate is set in advance, and the first preset temperature change rate is greater than the temperature change rate threshold. The temperature change rate is compared with the first preset temperature change rate and the temperature change rate threshold respectively, and the interval duration is adjusted according to the comparison result.

8. The isothermal bath system for enriching gas and liquid phases according to claim 7, characterized in that, When the judgment unit adjusts the interval duration based on the comparison result, it includes: When the temperature change rate is greater than the temperature change rate threshold and less than or equal to the first preset temperature change rate, a first adjustment coefficient is determined to adjust the interval duration to obtain the adjusted interval duration. When the temperature change rate is greater than the first preset temperature change rate, a second adjustment coefficient is determined to adjust the interval duration to obtain the adjusted interval duration; wherein, the first adjustment coefficient is greater than the second adjustment coefficient, and the values ​​of the first adjustment coefficient and the second adjustment coefficient are in the range of 0-1.

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