Temperature control method, equipment, medium and system
By determining the temperature control mode in the chemisorption instrument based on the set temperature, sample temperature, and preset temperature threshold, and by utilizing the coordinated operation of the heating module, low-temperature module, and heat dissipation module, the problem of small temperature control range in the prior art is solved, and a wider range of temperature control is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING ADVANCED MEASUREMENT INSTRUMENTS CO LTD
- Filing Date
- 2026-03-05
- Publication Date
- 2026-04-21
AI Technical Summary
Existing chemisorption analyzers use a single method for sample temperature control, resulting in a small temperature control range that cannot reach the low or high temperatures set by the user.
By acquiring the set temperature, sample temperature, and preset temperature threshold, different temperature control modes are determined, and the heating module, low temperature module, and heat dissipation module work together to achieve temperature control of the sample in the chemisorption instrument.
The temperature control range of the chemisorption analyzer has been expanded, improving the stability and accuracy of temperature control.
Smart Images
Figure CN121900535A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of temperature control, specifically providing a temperature control method, device, medium, and system. Background Technology
[0002] Currently, chemisorption analyzers are widely used in fields such as chemistry and biology. They utilize methods such as temperature-programmed reduction, temperature-programmed oxidation, and temperature-programmed desorption to quantitatively analyze the active sites, metal dispersion, and adsorption capacity of catalysts and support materials. Therefore, accurate heating and cooling of chemisorption analyzers is essential.
[0003] In existing technologies, sample cooling is achieved by integrating a mechanical chiller inside the chemisorption apparatus, while sample heating is achieved by using a heating furnace. Specifically, when cooling is needed, the heating furnace is stopped and the chiller is started; when heating is needed, the chiller is stopped and the heating furnace is started. However, this single control method for sample temperature regulation results in the sample temperature failing to reach the user-set low or high temperature, leading to a limited temperature control range. Summary of the Invention
[0004] In order to overcome the above-mentioned defects, this application is made to provide a solution or at least a partial solution to the technical problem that existing chemisorption instruments, when using a single method to control the temperature of the samples inside, cannot reach the temperature set by the user, thus resulting in a small temperature control range.
[0005] In a first aspect, this application provides a temperature control method, comprising:
[0006] Obtain the set temperature, sample temperature, and preset temperature threshold;
[0007] The temperature control mode is determined based on the set temperature, the sample temperature, and the preset temperature threshold.
[0008] The temperature of the sample in the chemisorption instrument is controlled according to the temperature control mode.
[0009] In one technical solution of the above temperature control method, determining the temperature control mode based on the set temperature, the sample temperature, and the preset temperature threshold includes:
[0010] If it is determined that the set temperature is greater than the sample temperature, and the sample temperature is less than the preset temperature threshold, and the set temperature is greater than the preset temperature threshold, then the temperature control mode is a low temperature to high temperature mode.
[0011] If it is determined that the set temperature is greater than the sample temperature, and both the sample temperature and the set temperature are greater than the preset temperature threshold, then the temperature control mode is the ambient temperature range heating mode.
[0012] If it is determined that the set temperature is greater than the sample temperature, and both the sample temperature and the set temperature are less than the preset temperature threshold, then the temperature control mode is the low-temperature range heating mode.
[0013] If it is determined that the set temperature is less than the sample temperature, and both the sample temperature and the set temperature are greater than the preset temperature threshold, then the temperature control mode is a cooling mode within the normal temperature range.
[0014] If it is determined that the set temperature is less than the sample temperature, and both the sample temperature and the set temperature are less than the preset temperature threshold, then the temperature control mode is a cooling mode within the low-temperature range.
[0015] In one technical solution of the above temperature control method, the step of controlling the temperature of the sample in the chemisorption instrument according to the temperature control mode includes:
[0016] If the temperature control mode is determined to be the low-temperature to high-temperature mode or the low-temperature range to high-temperature mode, then the heating module and the low-temperature module are controlled to control the temperature of the sample respectively.
[0017] If the temperature control mode is determined to be the ambient temperature range heating mode, then the heating module is controlled to control the temperature of the sample.
[0018] If the temperature control mode is determined to be the cooling mode within the normal temperature range, then the heat dissipation module and the heating module are controlled to control the temperature of the sample.
[0019] If the temperature control mode is determined to be the cooling mode within the low-temperature range, then the low-temperature module is controlled to control the temperature of the sample.
[0020] In one technical solution of the above temperature control method, controlling the temperature of the sample by controlling the heating module includes:
[0021] Acquire heating control signals and temperature adjustment values;
[0022] The heating power of the heating module is obtained based on the heating control signal.
[0023] After the heating furnace of the heating module is raised, the sample is heated according to the heating power.
[0024] The judgment conditions are obtained based on the set temperature, the sample temperature, and the temperature adjustment value;
[0025] If the judgment condition is met within a preset time, the sample is then kept warm according to the heating power.
[0026] If the judgment condition is not met within the preset time, the sample is subjected to heat treatment.
[0027] In one technical solution of the above temperature control method, controlling the temperature of the sample by the low-temperature module includes:
[0028] Obtain the cooling control signal;
[0029] Determine whether the coil of the low-temperature module is at the bottom;
[0030] If the coil is determined to be at the top, the cryogenic module is then purged.
[0031] Control the coil of the low-temperature module to move downwards;
[0032] The cooling capacity is obtained based on the cooling control signal.
[0033] The sample is cooled according to the cooling capacity.
[0034] In one technical solution of the above temperature control method, after determining whether the coil of the low-temperature module is at the bottom, the method further includes:
[0035] If the coil of the low-temperature module is located at the bottom, then it is determined whether the sample needs to be cooled.
[0036] If it is determined that the sample will not be cooled, the coil is moved upwards.
[0037] In one technical solution of the above temperature control method, after determining that the coil is at the top and performing a purging process on the low-temperature module, the method further includes:
[0038] Determine whether the sample needs to be cooled.
[0039] If it is determined that the sample will not be cooled, the low-temperature module will be shut down.
[0040] Secondly, this application provides a temperature control device, comprising: at least one processor and a memory; wherein,
[0041] The memory stores computer-executed instructions;
[0042] The at least one processor executes computer execution instructions stored in the memory, causing the at least one processor to perform the method described in any one of the first aspects.
[0043] Thirdly, this application provides a computer-readable storage medium storing a plurality of program codes adapted to be loaded and run by a processor to perform the method described in any one of the first aspects.
[0044] Fourthly, this application provides a temperature control system, including a chemisorption instrument, a low-temperature module, a computing device, a heating module and a heat dissipation module in the chemisorption instrument, wherein...
[0045] The chemical adsorption instrument is used to acquire a set temperature, a sample temperature, and a preset temperature threshold, and to send the set temperature, the sample temperature, and the preset temperature threshold to the computing device;
[0046] The computing device is used to determine a temperature control mode based on the set temperature, the sample temperature, and the preset temperature threshold, and to control the heating module, the low-temperature module, and the heat dissipation module based on the temperature control mode.
[0047] The computing device is also used to perform the method described in any one of the first aspects.
[0048] This application provides a temperature control method, device, medium, and system. The method specifically includes: acquiring a set temperature, a sample temperature, and a preset temperature threshold; determining a temperature control mode based on the set temperature, the sample temperature, and the preset temperature threshold; and controlling the temperature of the sample in the chemisorption analyzer according to the temperature control mode, thereby expanding the temperature control range of the chemisorption analyzer. Attached Figure Description
[0049] The disclosure of this application will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the drawings are used to denote similar components, wherein:
[0050] Figure 1 This is a schematic flowchart of a temperature control method according to an embodiment of this application.
[0051] Figure 2 This is a schematic flowchart of a second embodiment of a temperature control method provided in this application.
[0052] Figure 3 This is a schematic flowchart of a third embodiment of a temperature control method provided in this application;
[0053] Figure 4 This is a schematic flowchart of a fourth embodiment of a temperature control method provided in this application;
[0054] Figure 5 This is a flowchart illustrating a fifth embodiment of a temperature control method provided in this application.
[0055] Figure 6 This is a schematic flowchart of a sixth embodiment of a temperature control method provided in this application;
[0056] Figure 7 This is a schematic diagram of the structure of a temperature control device provided in an embodiment of this application;
[0057] Figure 8 This is a schematic diagram of the structure of a temperature control system provided in an embodiment of this application;
[0058] Figure 9 This is a schematic diagram of the process for obtaining temperature regulation values provided in an embodiment of this application.
[0059] List of reference numerals in the attached diagram:
[0060] 11: Processor; 12: Memory; 21: Chemisorption instrument; 22: Heating module; 23: Heat dissipation module; 24: Low temperature module; 25: Computing device. Detailed Implementation
[0061] Some embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application.
[0062] In the description of this application, "module" and "processor" can include hardware, software, or a combination of both. A module can include hardware circuitry, various suitable sensors, communication ports, memory, and can also include software components, such as program code, or a combination of software and hardware. A processor can be a central processing unit, microprocessor, image processor, digital signal processor, or any other suitable processor. The processor has data and / or signal processing capabilities. The processor can be implemented in software, in hardware, or a combination of both. Non-transitory computer-readable storage media includes any suitable medium capable of storing program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc. The term "A and / or B" means all possible combinations of A and B, such as only A, only B, or A and B. The terms "at least one A or B" or "at least one of A and B" have a similar meaning to "A and / or B" and can include only A, only B, or A and B. The singular terms "a" or "this" can also include plural forms.
[0063] In existing technologies, chemisorption analyzers can cover a temperature range from room temperature to high temperatures (e.g., from 25°C to 1200°C), but they cannot cover a temperature range from low temperatures to high temperatures (e.g., from -130°C to 1100°C). Furthermore, when using cryogenic devices for cooling, the consumption of liquid nitrogen and nitrogen gas is excessive, and the violent boiling and vaporization of liquid nitrogen leads to large temperature fluctuations. These factors contribute to the technical problem of the limited temperature control range of existing chemisorption analyzers.
[0064] Based on this, in order to solve the above-mentioned technical problems, the technical concept of this application is to provide a new temperature control method to expand the temperature control range of the chemisorption instrument.
[0065] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.
[0066] Figure 1 This is a schematic flowchart of a temperature control method according to an embodiment of this application. Figure 1 As shown, specifically, the method includes:
[0067] Step S101: Obtain the set temperature, sample temperature, and preset temperature threshold.
[0068] In this embodiment, the sample is placed in a sample tube, and a temperature sensor is installed in the bed. By acquiring the bed temperature, the sample temperature can be obtained. The set temperature is set by the operator of the chemisorption analyzer and can be set within the adjustable temperature range of the chemisorption analyzer.
[0069] Step S102: Determine the temperature control mode based on the set temperature, sample temperature, and preset temperature threshold.
[0070] In this embodiment, the set temperature is compared with a preset temperature threshold to obtain a first relationship; the sample temperature is compared with the preset temperature threshold to obtain a second relationship; and the temperature control mode is obtained based on the first and second relationships.
[0071] In this embodiment, the temperature control of the chemisorption instrument is divided into several temperature control scenarios through the first relationship and the second relationship. For different temperature control scenarios, there are corresponding temperature control modes.
[0072] In this embodiment, for example, the preset temperature threshold is 25 degrees Celsius.
[0073] Step S103: Control the temperature of the sample in the chemisorption instrument according to the temperature control mode.
[0074] In this embodiment, a temperature control strategy corresponding to the temperature control mode is obtained from the memory of the chemisorption instrument, and the temperature of the sample in the chemisorption instrument is controlled according to the temperature control strategy.
[0075] In this embodiment, compared to the prior art where the chemisorption instrument has a small temperature control range due to the use of a single temperature control mode when heating or cooling the sample, this application determines different temperature control modes based on the user's set temperature, sample temperature, and preset temperature threshold. Then, the sample temperature is controlled according to the temperature control mode, thereby dividing heating and cooling into different situations and using different temperature control modes in different situations, thus expanding the temperature control range of the chemisorption instrument.
[0076] Figure 2 This is a schematic flowchart of a second embodiment of a temperature control method provided in this application. Figure 2 As shown, the specific implementation of step S102 includes:
[0077] Step S201: If it is determined that the set temperature is greater than the sample temperature, the sample temperature is less than the preset temperature threshold, and the set temperature is greater than the preset temperature threshold, then the temperature control mode is low temperature rise mode.
[0078] In this embodiment, if the set temperature is greater than the sample temperature, it is determined that the sample temperature will be controlled to rise. Then, if the sample temperature is less than the preset temperature threshold and the set temperature is greater than the preset temperature threshold, it means that the temperature rise process needs to exceed the preset temperature threshold. In this case, the temperature control mode is determined to be the low temperature rise mode.
[0079] In this embodiment, the temperature of the sample in the chemisorption instrument is controlled by a heating module and a heat dissipation module installed inside the chemisorption instrument, and a cooling module installed independently outside the chemisorption instrument.
[0080] When the temperature control mode is low temperature to high temperature, the heating module needs to heat the sample. At the same time, in order to ensure a stable temperature rise and avoid excessive temperature fluctuations in a short period of time, the low temperature module needs to work in conjunction with the heating module to control the temperature of the sample.
[0081] Step S202: If it is determined that the set temperature is greater than the sample temperature, and both the sample temperature and the set temperature are greater than the preset temperature threshold, then the temperature control mode is the ambient temperature range heating mode.
[0082] In this embodiment, the temperature range greater than the preset temperature threshold is the normal temperature range.
[0083] If the set temperature is determined to be higher than the sample temperature, the sample needs to be heated. Then, if both the sample temperature and the set temperature are determined to be higher than the preset temperature threshold, that is, both the sample temperature and the set temperature are within the normal temperature range, the temperature control mode is the normal temperature range heating mode.
[0084] In this embodiment, both the sample temperature and the set temperature are within the normal temperature range, and only the heating module is needed to control the sample temperature.
[0085] Step S203: If it is determined that the set temperature is greater than the sample temperature, and both the sample temperature and the set temperature are less than the preset temperature threshold, then the temperature control mode is the low temperature range heating mode.
[0086] In this embodiment, the temperature range below the preset temperature threshold is the low temperature range.
[0087] If the set temperature is higher than the sample temperature, the sample needs to be heated. At this time, it is necessary to determine whether the sample temperature and the set temperature are in the low temperature range or the normal temperature range. If both the sample temperature and the set temperature are lower than the preset temperature threshold, that is, both the sample temperature and the set temperature are in the low temperature range, then the temperature control mode is determined to be the low temperature range heating mode.
[0088] In this embodiment, both the sample temperature and the set temperature are in the low-temperature range. When heating the sample using the low-temperature range heating mode, the heating furnace is first raised to the vicinity of the sample tube to keep the sample tube warm. Since the ambient temperature around the sample tube is higher than the sample tube temperature, heat exchange occurs between the outside and the sample tube, causing the sample tube temperature to rise. At this time, in order to stabilize the heating, the low-temperature module needs to be activated. By controlling the amount of cold air entering the low-temperature module, the sample tube is steadily heated. When the sample temperature rises to the preset temperature threshold, the heating module is activated. Then, the heating module and the low-temperature module jointly control the sample tube to stabilize the heating.
[0089] Step S204: If it is determined that the set temperature is lower than the sample temperature, and both the sample temperature and the set temperature are higher than the preset temperature threshold, then the temperature control mode is the cooling mode within the normal temperature range.
[0090] In this embodiment, if the set temperature is lower than the sample temperature, the sample needs to be cooled. If it is determined that both the sample temperature and the set temperature are greater than the preset temperature threshold, that is, both the sample temperature and the set temperature are in the normal temperature range, then the temperature control mode is the normal temperature range cooling mode.
[0091] In this embodiment, since both the sample temperature and the set temperature are greater than the preset temperature threshold, when the temperature control mode is the cooling mode within the normal temperature range, the heat dissipation module is first activated to reduce the sample temperature. After the set temperature is reached, the heat dissipation module is controlled to stop running. After the heating furnace rises, the heating module is activated to keep the sample tube warm.
[0092] Step S205: If it is determined that the set temperature is lower than the sample temperature, and both the sample temperature and the set temperature are lower than the preset temperature threshold, then the temperature control mode is the low temperature range cooling mode.
[0093] In this embodiment, if the set temperature is determined to be lower than the sample temperature, the sample needs to be cooled. Then, if both the sample temperature and the set temperature are determined to be lower than the preset temperature threshold, that is, both the sample temperature and the set temperature are in the low temperature range, the temperature control mode is the low temperature range cooling mode.
[0094] Both the sample temperature and the set temperature are in the low-temperature range, and only the low-temperature module controls the sample temperature.
[0095] In this embodiment, based on the set temperature and the sample temperature, it is determined whether to heat or cool the sample. Then, by comparing the set temperature and the sample temperature with preset temperature thresholds, the temperature control mode is determined based on the comparison results. Then, according to different temperature control modes, one or two of the heating module, low temperature module, and heat dissipation module are controlled to control the sample temperature, thereby improving the stability of sample heating or cooling in the chemisorption instrument.
[0096] Figure 3 This is a schematic flowchart of a third embodiment of a temperature control method provided in this application. Figure 3 As shown, specifically, the heating module controls the temperature of the sample, including:
[0097] Step S301: Obtain the heating control signal and temperature adjustment value.
[0098] In this embodiment, in order to avoid temperature overshoot, that is, to prevent the sample temperature from exceeding the set temperature during heating, a temperature adjustment value needs to be set. After the actual temperature of the sample reaches the sum of the set temperature and the temperature adjustment value, due to inertia, the sample temperature will continue to rise after the temperature adjustment is stopped, and eventually reach the set temperature.
[0099] In this embodiment, Figure 9 This is a schematic diagram of the process for obtaining temperature regulation values provided in an embodiment of this application. Figure 9 As shown. Specifically, obtaining the temperature adjustment value in step S301 includes:
[0100] Step S901: Obtain the initial value of the temperature regulation value, the heating rate, and the stable temperature value.
[0101] Step S902: Determine whether the sample temperature is greater than or equal to the sum of the initial values of the set temperature and the temperature adjustment value.
[0102] Step S903: If the sample temperature is determined to be greater than or equal to the sum of the initial value of the set temperature and the temperature adjustment value, then determine whether the set temperature is greater than the first temperature threshold and less than the second temperature threshold.
[0103] Step S904: If the set temperature is determined to be greater than the first temperature threshold and less than the second temperature threshold, then the preset first temperature is used as the temperature adjustment value.
[0104] Step S905: If the set temperature does not meet the condition of being greater than the first temperature threshold and less than the second temperature threshold, then the preset second temperature is used as the temperature adjustment value.
[0105] Step S906: Determine that the sample temperature does not meet the requirement of being greater than or equal to the sum of the initial values of the set temperature and the temperature adjustment value.
[0106] Step S907: If it is determined that the low temperature module is running, then the preset third temperature is used as the temperature adjustment value.
[0107] Step S908: Determine that the low-temperature module is not running. If the heating rate is greater than the stable temperature value, the stable temperature value is the temperature adjustment value. If the heating rate is less than or equal to the stable temperature value, the heating rate is the temperature adjustment value.
[0108] This method of obtaining temperature regulation values can improve the accuracy of temperature regulation values, and on this basis, can also improve the smoothness of temperature changes during the heating or cooling process.
[0109] In this embodiment, at fixed time intervals, the temperature adjustment value needs to be obtained according to the above-mentioned method for obtaining the temperature adjustment value.
[0110] For example, the initial temperature adjustment value is 2, the first temperature threshold is 25, the second temperature threshold is 30, the preset first temperature is 5, the preset second temperature is 2, and the preset third temperature is 50.
[0111] During temperature regulation, the system determines whether the sample temperature is greater than or equal to the sum of the set temperature and the initial temperature regulation value. If the condition is met, the temperature regulation value is reset according to the range of the set temperature. If the sample temperature is not greater than or equal to the sum of the set temperature and the initial temperature regulation value, the temperature regulation value is reset according to whether the low temperature module is enabled, thereby achieving stable heating or cooling of the sample.
[0112] In this embodiment, according to formula 1:
[0113] (1)
[0114] The heating control signal u(t) is obtained. Where K pK is the proportionality coefficient; e(t) is the error signal, i.e., the difference between the set temperature and the actual sample temperature; i The integral coefficient; The integral term represents the accumulation of historical errors; K d These are the differential coefficients; The differential term represents the trend of error change.
[0115] Step S302: Obtain the heating power of the heating module based on the heating control signal.
[0116] In this embodiment, the heating control signal is a percentage, and the product of the maximum heating power of the heating module and the heating control signal is the heating power of the heating module.
[0117] Step S303: After the heating furnace of the heating module rises, the sample is heated according to the heating power.
[0118] The heating module includes a heating furnace and a sample tube. The sample is located in the sample tube. The sample is heated by heating the sample tube and transferring the heat to the sample.
[0119] When heating the sample, the furnace rises, that is, the furnace surrounds the sample tube, and then the electric heating element in the furnace is activated according to the heating power to heat the sample.
[0120] Step S304: Based on the set temperature, sample temperature, and temperature adjustment value, obtain the judgment conditions.
[0121] The criterion is whether the sample temperature is greater than or equal to the sum of the set temperature and the temperature adjustment value.
[0122] Step S305: If the judgment condition is met within the preset time, then the sample is kept warm according to the heating power.
[0123] In this embodiment, the condition is checked multiple times within a preset time. If the condition is always met within the preset time, the sample temperature has reached the set temperature. At this time, the heating furnace maintains the current heating power to keep the sample in the sample tube warm.
[0124] Step S306: If the judgment condition is not met within the preset time, the sample is heated.
[0125] If it is determined that the judgment condition is not always met within the preset time, the heating furnace will continue to heat the sample according to the heating power.
[0126] In this embodiment, when the judgment condition changes from not being satisfied to being satisfied, or from being satisfied to not being satisfied, the integral term in Formula 1 needs to be set to zero.
[0127] In this embodiment, the heating power is obtained through proportional-derivative-integral control. Then, if the sample temperature is greater than or equal to the sum of the set temperature and the temperature adjustment value within a preset time, the sample is kept warm according to the heating power. Otherwise, the sample continues to be heated, thereby improving the stability of the heating rate during the heating process.
[0128] Figure 4 This is a schematic flowchart of a fourth embodiment of a temperature control method provided in this application. Figure 4 As shown, the specific operating mode of the cryogenic module includes:
[0129] Step S401: Obtain the cooling control signal.
[0130] In this embodiment, the heating furnace of the heating module rises to the vicinity of the sample tube, but the heating furnace does not need to heat the sample tube, so as to keep the sample tube warm.
[0131] In this embodiment, the cooling control signal is obtained through Formula 1, and the cooling control signal is a percentage.
[0132] Step S402: Determine whether the coil of the low-temperature module is at the bottom.
[0133] In this embodiment, the cryogenic module may include a liquid nitrogen Dewar flask, a coil, a purging device, and a pipe. After the coil of the cryogenic module is lowered, it is immersed in liquid nitrogen. Then, the liquid nitrogen cools the nitrogen gas flowing through the coil. The cryogenic nitrogen gas is then introduced into the cooling jacket around the sample tube through the pipe, thereby cooling the sample tube and thus cooling the sample.
[0134] Step S403: If the coil is located at the top, then the cryogenic module is purged.
[0135] In this embodiment, before the coil is lowered, it is necessary to purge the coil to prevent water droplets inside the coil from freezing and clogging it.
[0136] Step S404: Control the coil of the low-temperature module to move downwards.
[0137] Once the purging is complete, the coil of the cryogenic module moves downward and is immersed in liquid nitrogen, which cools the nitrogen gas flowing through the coil.
[0138] Step S405: Obtain the cooling capacity based on the cooling control signal.
[0139] In this embodiment, the product of the refrigeration control signal and the maximum valve opening is the valve opening, which is the refrigeration capacity.
[0140] Step S406: Cool the sample according to the cooling capacity.
[0141] Open the valve to the specified opening position, and then inject low-temperature nitrogen gas into the cooling jacket around the sample tube to cool the sample.
[0142] In this embodiment, after determining that the coil is at the top, the low-temperature module is purged. After confirming that the purging is complete, the coil of the low-temperature module is controlled to move downward. Then, according to the cooling control signal, the cooling capacity is obtained, and the sample is cooled according to the cooling capacity. By determining the start and stop of the cooling module, the safety of the cooling process and the accuracy of temperature regulation are improved.
[0143] Figure 5 This is a flowchart illustrating a fifth embodiment of a temperature control method provided in this application. Figure 5 As shown, specifically, after step S402, the method further includes:
[0144] Step S501: If the coil of the low-temperature module is located at the bottom, then determine whether to perform a cooling treatment on the sample.
[0145] In this embodiment, if it is determined that the coil of the low-temperature module is at the bottom, it is necessary to determine whether the sample needs to be cooled, that is, whether the low-temperature nitrogen in the coil needs to be introduced into the cooling jacket around the sample tube.
[0146] Step S502: If it is determined that the sample will not be cooled, the coil is moved upward.
[0147] In this embodiment, after determining that the sample will not be cooled, the coil needs to be moved upwards, meaning that the liquid nitrogen will not cool the nitrogen gas in the coil.
[0148] In this embodiment, if it is determined that the coil of the cryogenic module is at the bottom and it is determined that the sample will not be cooled, then the cryogenic module is no longer needed to cool the sample. Instead, the coil needs to be raised. That is, when the cryogenic module is not running, the coil in the cryogenic module is restored to the stopped state, thereby reducing the consumption of liquid nitrogen and nitrogen gas.
[0149] Figure 6 This is a schematic flowchart of a sixth embodiment of a temperature control method provided in this application. Figure 6 As shown, specifically, after step S403, the method further includes:
[0150] Step S601: Determine whether to cool the sample.
[0151] In this embodiment, during the purging process of the low-temperature module, the low-temperature module does not need to operate due to changes in the user-set temperature. At this time, after the purging is completed, it is necessary to determine again whether to perform cooling treatment on the sample.
[0152] Step S602: If it is determined that the sample will not be cooled, the low-temperature module will be shut down.
[0153] In this embodiment, after determining that the sample will not be cooled, the low-temperature module is shut down, that is, the coil of the low-temperature module is raised and the nitrogen gas is stopped being introduced into the coil.
[0154] In this embodiment, after purging the cryogenic module, it is necessary to reconfirm whether the sample needs to be cooled. If the sample does not need to be cooled, the cryogenic module is stopped to reduce nitrogen consumption.
[0155] It should be noted that although the steps in the above embodiments are described in a specific order, those skilled in the art will understand that in order to achieve the effect of this application, different steps do not necessarily have to be executed in such an order. They can be executed simultaneously (in parallel) or in other orders, and these variations are all within the scope of protection of this application.
[0156] Furthermore, this application also provides a temperature control device.
[0157] Figure 7 This is a schematic diagram of the structure of a temperature control device provided in an embodiment of this application. Figure 7 As shown, the temperature control device includes a processor 11 and a memory 12. The memory 12 can be configured to store a program for executing the temperature control method of the above-described method embodiments, and the processor 11 can be configured to execute the program stored in the memory, including but not limited to the program for executing the temperature control method of the above-described method embodiments. For ease of explanation, only the parts related to the embodiments of this application are shown; for specific technical details not disclosed, please refer to the method section of the embodiments of this application. The temperature control device can be a control device device comprising various electronic devices.
[0158] Furthermore, this application also provides a temperature control system.
[0159] Figure 8 This is a schematic diagram of a temperature control system provided in an embodiment of this application. Figure 8As shown, the temperature control system includes: a chemisorption analyzer 21, a cryogenic module 24, a computing device 25, a heating module 22 in the chemisorption analyzer 21, and a heat dissipation module 23. The chemisorption analyzer 21 can be configured to acquire a set temperature, a sample temperature, and a preset temperature threshold, and send these to the computing device 25. The computing device 25 can be configured to determine a temperature control mode based on the set temperature, sample temperature, and preset temperature threshold, and control the heating module 22, the cryogenic module 24, and the heat dissipation module 23 according to the temperature control mode. The computer 23 can also be configured to execute... Figures 1 to 6 The temperature control method shown is an example.
[0160] Those skilled in the art will understand that all or part of the processes in the method of the above-described embodiment can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable storage medium can include any entity or device capable of carrying the computer program code, a medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory, a random access memory, an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.
[0161] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.
Claims
1. A temperature control method, characterized in that, include: Obtain the set temperature, sample temperature, and preset temperature threshold; The temperature control mode is determined based on the set temperature, the sample temperature, and the preset temperature threshold. The temperature of the sample in the chemisorption instrument is controlled according to the temperature control mode.
2. The method according to claim 1, characterized in that, The step of determining the temperature control mode based on the set temperature, the sample temperature, and the preset temperature threshold includes: If it is determined that the set temperature is greater than the sample temperature, and the sample temperature is less than the preset temperature threshold, and the set temperature is greater than the preset temperature threshold, then the temperature control mode is a low temperature to high temperature mode. If it is determined that the set temperature is greater than the sample temperature, and both the sample temperature and the set temperature are greater than the preset temperature threshold, then the temperature control mode is the ambient temperature range heating mode. If it is determined that the set temperature is greater than the sample temperature, and both the sample temperature and the set temperature are less than the preset temperature threshold, then the temperature control mode is the low-temperature range heating mode. If it is determined that the set temperature is less than the sample temperature, and both the sample temperature and the set temperature are greater than the preset temperature threshold, then the temperature control mode is a cooling mode within the normal temperature range. If it is determined that the set temperature is less than the sample temperature, and both the sample temperature and the set temperature are less than the preset temperature threshold, then the temperature control mode is a cooling mode within the low-temperature range.
3. The method according to claim 2, characterized in that, The step of controlling the temperature of the sample in the chemisorption instrument according to the temperature control mode includes: If the temperature control mode is determined to be the low-temperature to high-temperature mode or the low-temperature range to high-temperature mode, then the heating module and the low-temperature module are controlled to control the temperature of the sample respectively. If the temperature control mode is determined to be the ambient temperature range heating mode, then the heating module is controlled to control the temperature of the sample. If the temperature control mode is determined to be the cooling mode within the normal temperature range, then the heat dissipation module and the heating module are controlled to control the temperature of the sample. If the temperature control mode is determined to be the cooling mode within the low-temperature range, then the low-temperature module is controlled to control the temperature of the sample.
4. The method according to claim 3, characterized in that, The control of the heating module to control the temperature of the sample includes: Acquire heating control signals and temperature adjustment values; The heating power of the heating module is obtained based on the heating control signal. After the heating furnace of the heating module is raised, the sample is heated according to the heating power. The judgment conditions are obtained based on the set temperature, the sample temperature, and the temperature adjustment value; If the judgment condition is met within a preset time, the sample is then kept warm according to the heating power. If the judgment condition is not met within the preset time, the sample is subjected to heat treatment.
5. The method according to claim 3, characterized in that, The control of the low-temperature module to control the temperature of the sample includes: Obtain the cooling control signal; Determine whether the coil of the low-temperature module is at the bottom; If the coil is determined to be at the top, the cryogenic module is then purged. Control the coil of the low-temperature module to move downwards; The cooling capacity is obtained based on the cooling control signal. The sample is cooled according to the cooling capacity.
6. The method according to claim 5, characterized in that, After determining whether the coil of the low-temperature module is at the bottom, the method further includes: If the coil of the low-temperature module is located at the bottom, then it is determined whether the sample needs to be cooled. If it is determined that the sample will not be cooled, the coil is moved upwards.
7. The method according to claim 5, characterized in that, After determining that the coil is at the top and performing a purging process on the cryogenic module, the method further includes: Determine whether the sample needs to be cooled. If it is determined that the sample will not be cooled, the low-temperature module will be shut down.
8. A temperature control device, characterized in that, include: At least one processor and memory; wherein, The memory stores computer-executed instructions; The at least one processor executes computer execution instructions stored in the memory, causing the at least one processor to perform the method of any one of claims 1 to 7.
9. A computer-readable storage medium storing a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by a processor to perform the method of any one of claims 1 to 7.
10. A temperature control system, characterized in that, It includes a chemisorption apparatus, a low-temperature module, a computing device, a heating module and a heat dissipation module in the chemisorption apparatus, wherein, The chemical adsorption instrument is used to acquire a set temperature, a sample temperature, and a preset temperature threshold, and to send the set temperature, the sample temperature, and the preset temperature threshold to the computing device; The computing device is used to determine a temperature control mode based on the set temperature, the sample temperature, and the preset temperature threshold, and to control the heating module, the low-temperature module, and the heat dissipation module based on the temperature control mode. The computing device is also used to perform the method according to any one of claims 1 to 7.