Constant-temperature bath system for enriching gas phase and liquid phase

Abstract

The invention relates to the technical field of constant-temperature heating, and discloses a gas and liquid phase enriched constant-temperature bath system which comprises a waste gas circulating device, a constant-temperature device and a control device, the waste gas circulating device introduces waste gas into the constant-temperature device for heavy metal enrichment, and the control device controls the heating mode of the constant-temperature device; the acquisition unit acquires the real-time temperature of the waste gas and the target temperature of the constant temperature device and determines a heating mode; when the temperature difference is large, the processing unit adopts high-power intermittent heating, a heat loss value is obtained, and the maximum power and intermittent duration of high-power intermittent heating are determined; real-time temperatures of a plurality of 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; the judging unit obtains the temperature change rate according to the average temperature at the intermittent end point moment and the target temperature and judges whether the intermittent duration is adjusted or not. The waste gas heavy metal enrichment efficiency and precision are improved, and manual intervention is reduced through intelligent temperature control and self-adaptive adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of constant temperature heating, in particular to a constant temperature bath system for enriching gas and liquid phases. Background Art

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

[0003] During the heavy metal enrichment process, a constant temperature bath diffuses and mixes the gas with the liquid, transferring heavy metals from the exhaust gas into the liquid phase. This increases the heavy metal concentration, improves the efficiency of heavy metal enrichment in the liquid phase, and enhances detection accuracy. However, current constant temperature systems are mostly manually operated. Manual control 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 based on detection requirements. Inhomogeneous mixing of gas and liquid can also reduce the enrichment effect.

[0004] Therefore, there is an urgent need for a constant temperature bath system for enriching gas and liquid phase 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, aiming 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, which in turn affects the enrichment stability.

[0006] The present invention proposes a constant temperature bath system for enriching gas and liquid phases, comprising: An exhaust gas circulation device, a constant temperature device, and a control device, wherein the exhaust gas circulation device is in communication with the constant temperature device, the exhaust gas circulation device is used to pass exhaust gas into the constant temperature device for heavy metal enrichment, the constant temperature device includes a constant temperature solution, and the constant temperature solution is used to react with the exhaust gas to enrich the heavy metals. The control device is electrically connected to the exhaust gas circulation device and the constant temperature device, and is used to control the heating mode of the constant temperature device. The control device includes a collection unit, a processing unit, and a judgment unit; The collecting 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 according to 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, obtain a heat loss value based on the real-time temperature and the target temperature, and determine the maximum power and intermittent duration of the high-power intermittent heating based on the heat loss value; The processing unit is further configured to collect real-time temperatures at several locations within the constant temperature solution, establish a temperature distribution model, and obtain an 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 judge whether to adjust the interval duration based on the temperature change rate; when it is determined that the interval duration is to be adjusted, run with the adjusted interval duration.

[0007] Furthermore, when the acquisition unit determines the heating mode according to the comparison result, it includes: The acquisition unit is further configured to obtain a temperature difference value based on the real-time temperature and the target temperature, the temperature difference value being the difference between the target temperature and the real-time temperature, compare the temperature difference value with a preset temperature difference threshold, and determine a heating mode based on the comparison result; When the temperature difference is greater than a 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.

[0008] Furthermore, the processing unit obtains a heat loss value according to the real-time temperature and the target temperature, and the heat loss value is calculated by the following formula:

[0009] Where QL represents the thermal loss value, Indicates the density of exhaust gas, represents the volume flow rate of exhaust gas, is the specific heat capacity of the exhaust gas, Tm represents the target temperature, Indicates the real-time temperature of exhaust gas.

[0010] Furthermore, when the processing unit determines the maximum power and intermittent duration of the high-power intermittent heating according to the heat loss value, the processing unit 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 according to the comparison results, 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 that the maximum power of the high-power intermittent heating is the first preset power and the intermittent duration is 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 that the maximum power of the high-power intermittent heating is the second preset power and the intermittent duration is 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 a third preset power and the intermittent duration is the third preset intermittent duration; Among them, 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 time is greater than the second preset intermittent time, and the second preset intermittent time is greater than the third preset intermittent time.

[0011] Furthermore, when the processing unit obtains the average temperature of the constant temperature solution according to the temperature distribution model, it includes: The processing unit is further configured to obtain temperature data at the center of the constant temperature solution according to the temperature distribution model, and obtain the average temperature according to the temperature data at the center of the constant temperature solution using the following formula:

[0012] 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.

[0013] Furthermore, when the processing unit obtains the average temperature of the constant temperature solution according to the temperature distribution model, it also includes: The weight wi of the measurement point is calculated by the following formula:

[0014]

[0015] Where wi represents the weight of the i-th measurement point, Wi represents the weighting factor of the i-th measurement point, and 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.

[0016] Furthermore, when the determination unit obtains the temperature change rate based on the average temperature at the intermittent end point and the target temperature, it includes: The temperature change rate is calculated by the following formula:

[0017] Where E represents the temperature change rate, Tm represents the target temperature, Tavg1 represents the average temperature at the end of the interval, and t represents the interval duration.

[0018] Furthermore, when the judgment unit judges whether to adjust the pause duration according to the temperature change rate, it includes: The judgment unit compares the temperature change rate with a preset temperature change rate threshold, and judges whether to adjust the pause duration according to the comparison result; When the temperature change rate is less than or equal to the temperature change rate threshold, the judgment unit determines not to adjust the pause duration; When the temperature change rate is greater than a temperature change rate threshold, the judgment unit determines to adjust the pause time.

[0019] Furthermore, when the judgment unit determines to adjust the pause duration, the method includes: A first preset temperature change rate is pre-set, 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 intermittent duration is adjusted according to the comparison result.

[0020] Furthermore, when the judgment unit adjusts the intermission duration according to 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 intermittent duration to obtain an adjusted intermittent duration; When the temperature change rate is greater than the first preset temperature change rate, determining a second adjustment coefficient to adjust the intermittent duration to obtain an adjusted intermittent duration; The first adjustment coefficient is greater than the second adjustment coefficient, and the value range of the first adjustment coefficient and the second adjustment coefficient is 0-1.

[0021] Compared with the prior art, the present invention has the following advantages: the acquisition unit collects temperature data from 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 the temperature difference, thereby avoiding temperature fluctuations caused by manual operation. This improves the efficiency of heavy metal enrichment and detection accuracy. 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. The target temperature is quickly reached in a short time, 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 unevenness problem caused by single-point temperature measurement, ensures the stability and uniformity of the solution temperature, and improves the temperature control accuracy. At the end of each heating interval, the judgment unit evaluates the average temperature change rate of the constant temperature solution and automatically adjusts the interval duration. This enables flexible adjustment of the heating strategy according to actual temperature changes, thereby improving the stability and efficiency of the enrichment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings: 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 DESCRIPTION

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, unless there is a conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0024] In some embodiments of the present application, see Figure 1 As shown, this embodiment provides a constant temperature bath system for enriching gas and liquid phase, including: an exhaust gas circulation device, a constant temperature device and a control device, wherein: The exhaust gas circulation device is connected to the constant temperature device, and the exhaust gas circulation device is used to pass exhaust gas into the constant temperature device for heavy metal enrichment. The constant temperature device includes a constant temperature solution, and the constant temperature solution is used to react with the exhaust gas to enrich the heavy metals. The control device is electrically connected to the exhaust gas circulation device and the constant temperature device, and is used to control the heating mode of the constant temperature device. The control device includes a collection unit, a processing unit, and a judgment unit. The collection 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 according to 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, obtain a heat loss value based on the real-time temperature and the target temperature, and determine the maximum power and intermittent duration of the high-power intermittent heating based on the heat loss value; The processing unit is further configured to collect real-time temperatures at several locations within the constant temperature solution, establish a temperature distribution model, and obtain an 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 judge whether to adjust the interval duration based on the temperature change rate; when it is determined that the interval duration is to be adjusted, it runs with the adjusted interval duration.

[0025] As can be understood, the exhaust gas recirculation unit is connected to a thermostat, responsible for directing exhaust gas containing heavy metals into the thermostat, where it reacts with a solution, transferring the heavy metals from the gas phase to the liquid phase, thereby enriching the heavy metals. The thermostat contains a thermostat solution for heavy metal enrichment. This solution comes into contact with the exhaust gas, capturing and dissolving the heavy metals in the exhaust gas. The temperature of the thermostat is dynamically adjusted by a control unit to ensure optimal reaction conditions. The control unit is electrically connected to the exhaust gas recirculation unit and the thermostat to control and adjust the thermostat's heating mode. The control unit comprises a data acquisition unit, a processing unit, and a determination unit. The data acquisition unit monitors the exhaust gas temperature and the thermostat's target temperature in real time. It compares the measured temperature with the set target temperature to determine whether the heating mode needs to be adjusted. If 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 thermostat's target temperature, the processing unit determines the required heating power and intermittent heating duration to optimize heating efficiency. Furthermore, the processing unit collects real-time temperature data from multiple locations within the thermostat solution to build a temperature distribution model. By analyzing the temperature distribution model, the processing unit calculates the average solution temperature to ensure system temperature uniformity and stability. At the end of each heating interval, the judgment unit evaluates the average temperature of the constant-temperature solution and compares it to the target temperature. Based on the rate of temperature change, the judgment unit determines whether the interval duration for the next cycle needs to be adjusted. If adjustment is necessary, the system will operate according to the new interval duration to maintain optimal heating control and temperature stability.

[0026] As can be seen, real-time temperature monitoring and regulation enable dynamic adjustment of heating strategies, ensuring the efficient transfer of heavy metals from exhaust gas into the constant-temperature solution. This system achieves high precision and stability in temperature control, overcoming the temperature fluctuations and low reaction efficiency associated with traditional manual operation. Multi-point temperature acquisition and intelligent judgment automatically optimize the heating cycle, maintaining solution temperature uniformity and stability, improving both the efficiency of the enrichment process and detection accuracy.

[0027] In some embodiments of the present 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, where 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; 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.

[0028] It is understandable that when the temperature difference is greater than the preset temperature difference threshold, it means that the actual temperature is significantly lower than the target temperature and the temperature needs to be raised quickly. A high-power intermittent heating mode is used to quickly narrow the temperature difference. This heating mode provides higher-power heating in a short period of time, and suspends heating during the intermittent period to allow the temperature to gradually balance. 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 time, switch to low-power continuous heating mode. Low-power continuous heating can stably maintain the temperature within the target range, prevent overheating, and reduce energy consumption. Through real-time monitoring and adjustment, the temperature can be precisely controlled under dynamic conditions to maintain temperature stability and uniformity.

[0029] In some embodiments of the present application, the processing unit obtains the heat loss value according to the real-time temperature and the target temperature, and the heat loss value is calculated by the following formula:

[0030] Where QL represents the thermal loss value, Indicates the density of exhaust gas, represents the volume flow rate of exhaust gas, is the specific heat capacity of the exhaust gas, Tm represents the target temperature, Indicates the real-time temperature of exhaust gas.

[0031] As you can see, calculating heat loss accurately adjusts the heating power based on the actual heat loss to compensate for the required heat. This ensures the constant temperature system can quickly reach and maintain the set target temperature. Because the processing unit continuously monitors and calculates heat loss, preventive adjustments can be made before temperature fluctuations occur, maintaining the temperature stability of the solution.

[0032] In some embodiments of the present application, when the processing unit determines the maximum power and intermittent duration of high-power intermittent heating according to the heat loss value, the processing unit 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 according to the comparison results, where the first preset heat loss value is less than the second preset heat loss value; Specifically, when the thermal loss value is less than or equal to the first preset thermal loss value, the processing unit determines that the maximum power of the high-power intermittent heating is the first preset power, and the intermittent duration is the first preset intermittent duration; when the thermal loss value is greater than the first preset thermal loss value and less than or equal to the second preset thermal loss value, the processing unit determines that the maximum power of the high-power intermittent heating is the second preset power, and the intermittent duration is the second preset intermittent duration; when the thermal loss value is greater than the second preset thermal 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 intermittent duration is greater than the second preset intermittent duration, and the second preset intermittent duration is greater than the third preset intermittent duration.

[0033] As you can see, the tiered heat loss process allows for flexible adjustment of heating power and intermittent duration based on actual heat demand, resulting in precise temperature control. This gives the system a high degree of flexibility and adaptability, enabling it to automatically optimize heating modes under varying operating environments and load conditions. This helps ensure a stable temperature environment while better coping with varying operating conditions. Furthermore, the dynamic adjustment mechanism avoids unnecessary energy waste.

[0034] In some embodiments of the present application, when the processing unit obtains the average temperature of the constant temperature solution according to the temperature distribution model, the processing unit is further configured to obtain temperature data at the center of the constant temperature solution according to the temperature distribution model, and obtain the average temperature according to the temperature data at the center of the constant temperature solution using the following formula:

[0035] 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.

[0036] In some embodiments of the present application, when the processing unit obtains the average temperature of the constant temperature solution according to the temperature distribution model, the processing unit further includes: the weight wi of the measurement point is calculated by the following formula:

[0037]

[0038] Where wi represents the weight of the i-th measurement point, Wi represents the weighting factor of the i-th measurement point, and 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.

[0039] In some embodiments of the present application, when the determination unit obtains the temperature change rate based on the average temperature at the end of the interval and the target temperature, the temperature change rate is calculated using the following formula:

[0040] Where E represents the temperature change rate, Tm represents the target temperature, Tavg1 represents the average temperature at the end of the interval, and t represents the interval duration.

[0041] It can be understood that the accuracy of the actual temperature of the constant temperature solution is improved by weighted averaging and analyzing the comprehensive factors of the temperature gradient between each measuring point and the center. The deviation caused by single-point measurement is avoided, and the accuracy of temperature control is improved. The temperature change rate calculation method is used to evaluate the temperature change trend in real time, and the interval duration is adjusted in time to ensure temperature stability under different heating requirements. The dynamic response capability helps to maintain the constant temperature solution in a stable state near the target temperature and optimize the heating process. When faced with different exhaust gas flow rates and temperature conditions, considering the relationship between the measurement point and the center temperature can automatically adapt and maintain the best operating state. The flexibility and adaptability of the system in different application scenarios are enhanced.

[0042] In some embodiments of the present application, when the determination unit determines whether to adjust the intermittent duration according to the temperature change rate, the determination unit includes: comparing the temperature change rate with a preset temperature change rate threshold, and determining whether to adjust the intermittent duration according to the comparison result; 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 pause duration; when the temperature change rate is greater than the temperature change rate threshold, the judgment unit determines to adjust the pause duration.

[0043] In some embodiments of the present application, when the judgment unit determines to adjust the interval duration, it includes: pre-setting a first preset temperature change rate, and the first preset temperature change rate is greater than the 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.

[0044] In some embodiments of the present application, when the judgment unit adjusts the intermittent 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 the first adjustment coefficient to adjust the intermittent duration to obtain the adjusted intermittent duration; when the temperature change rate is greater than the first preset temperature change rate, determining the second adjustment coefficient to adjust the intermittent duration to obtain the adjusted intermittent duration; wherein, the first adjustment coefficient is greater than the second adjustment coefficient, and the value range of the first adjustment coefficient and the second adjustment coefficient is 0-1.

[0045] As you can see, by adjusting the pause duration and heating power appropriately, not only does the constant temperature solution remain stable, but it also responds quickly to temperature changes when needed, thereby improving overall system stability and efficiency. This reduces unnecessary high-power heating when the temperature approaches the target value, lowering energy consumption. The use of multi-level temperature change rate assessment and different adjustment coefficients enables flexible adjustments based on varying temperature variations.

[0046] In the above embodiment, the acquisition unit collects the 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 the temperature difference, thereby avoiding temperature fluctuations caused by manual operation. This improves the efficiency of heavy metal enrichment and detection accuracy. 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. The target temperature is quickly reached in a short time, 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 problem of unevenness caused by single-point temperature measurement, ensures the stability and uniformity of the solution temperature, and improves the temperature control accuracy. At the end of each heating interval, the judgment unit evaluates the average temperature change rate of the constant temperature solution and automatically adjusts the interval duration. This enables flexible adjustment of the heating strategy according to actual temperature changes, thereby improving the stability and efficiency of the enrichment process.

[0047] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0048] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0049] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0050] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0051] 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, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A constant temperature bath system for enriching gas and liquid phases, characterized in that: include: An exhaust gas circulation device, a constant temperature device, and a control device, wherein the exhaust gas circulation device is in communication with the constant temperature device, the exhaust gas circulation device is used to pass exhaust gas into the constant temperature device for heavy metal enrichment, the constant temperature device includes a constant temperature solution, and the constant temperature solution is used to react with the exhaust gas to enrich the heavy metals. The control device is electrically connected to the exhaust gas circulation device and the constant temperature device, and is used to control the heating mode of the constant temperature device. The control device includes a collection unit, a processing unit, and a judgment unit; The collecting 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 according to 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, obtain a heat loss value based on the real-time temperature and the target temperature, and determine the maximum power and intermittent duration of the high-power intermittent heating based on the heat loss value; The processing unit is further configured to collect real-time temperatures at several locations within the constant temperature solution, establish a temperature distribution model, and obtain an 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 judge whether to adjust the interval duration based on the temperature change rate; when it is determined that the interval duration is to be adjusted, run with the adjusted interval duration.

2. The constant temperature bath system for enriching gas and liquid phase according to claim 1, characterized in that: When the acquisition unit determines the heating mode according to the comparison result, it includes: The acquisition unit is further configured to obtain a temperature difference value based on the real-time temperature and the target temperature, the temperature difference value being the difference between the target temperature and the real-time temperature, compare the temperature difference value with a preset temperature difference threshold, and determine a heating mode based on the comparison result; When the temperature difference is greater than a 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 constant temperature bath system for enriching gas and liquid phase according to claim 1, characterized in that: The processing unit obtains the heat loss value according to the real-time temperature and the target temperature, and the heat loss value is calculated by the following formula: ； Where QL represents the thermal loss value, Indicates the density of exhaust gas, represents the volume flow rate of exhaust gas, is the specific heat capacity of the exhaust gas, Tm represents the target temperature, Indicates the real-time temperature of exhaust gas.

4. The constant temperature bath system for enriching gas and liquid phase according to claim 3, characterized in that: When the processing unit determines the maximum power and intermittent duration of the high-power intermittent heating according to the heat 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 according to the comparison results, 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 that the maximum power of the high-power intermittent heating is the first preset power and the intermittent duration is 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 that the maximum power of the high-power intermittent heating is the second preset power and the intermittent duration is 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 a third preset power and the intermittent duration is the third preset intermittent duration; Among them, 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 time is greater than the second preset intermittent time, and the second preset intermittent time is greater than the third preset intermittent time.

5. The constant temperature bath system for enriching gas and liquid phase according to claim 1, characterized in that: When the processing unit obtains the average temperature of the constant temperature solution according to the temperature distribution model, it includes: The processing unit is further configured to obtain temperature data at the center of the constant temperature solution according to the temperature distribution model, and obtain the average temperature according to the temperature data at the center of the constant temperature 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.

6. The constant temperature bath system for enriching gas and liquid phase according to claim 5, characterized in that: When the processing unit obtains the average temperature of the constant temperature solution according to the temperature distribution model, the processing unit further includes: The weight wi of the measurement point is calculated by 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, and 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.

7. The constant temperature bath system for enriching gas and liquid phase according to claim 6, characterized in that: When the determination unit obtains the temperature change rate according to the average temperature at the intermittent end point and the target temperature, the determination unit includes: The temperature change rate is calculated by the following formula: ； Where E represents the temperature change rate, Tm represents the target temperature, Tavg1 represents the average temperature at the end of the interval, and t represents the interval duration.

8. The constant temperature bath system for enriching gas and liquid phase according to claim 7, characterized in that: When the judging unit judges whether to adjust the pause duration according to the temperature change rate, the method includes: The judgment unit compares the temperature change rate with a preset temperature change rate threshold, and judges whether to adjust the pause duration according to the comparison result; When the temperature change rate is less than or equal to the temperature change rate threshold, the judgment unit determines not to adjust the pause duration; When the temperature change rate is greater than a temperature change rate threshold, the judgment unit determines to adjust the pause time.

9. The constant temperature bath system for enriching gas and liquid phase according to claim 8, characterized in that: When the determination unit determines to adjust the pause duration, the method includes: A first preset temperature change rate is pre-set, 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 intermittent duration is adjusted according to the comparison result.

10. The constant temperature bath system for enriching gas and liquid phase according to claim 9, characterized in that: When the judgment unit adjusts the pause duration according to 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 intermittent duration to obtain an adjusted intermittent duration; When the temperature change rate is greater than the first preset temperature change rate, determining a second adjustment coefficient to adjust the intermittent duration to obtain an adjusted intermittent duration; The first adjustment coefficient is greater than the second adjustment coefficient, and the value range of the first adjustment coefficient and the second adjustment coefficient is 0-1.

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