Liquid multi-material reaction system and control method and device thereof

Abstract

The invention relates to a liquid multi-material reaction system and a control method and device thereof, the control method is suitable for the liquid multi-material reaction system, and the liquid multi-material reaction system comprises a reaction tank, a heat exchanger and a stirring pipe arranged in the reaction tank; the control method comprises the steps that the reaction tank temperature in a reaction tank is obtained in real time, and the control temperature is determined based on the reaction tank temperature; on the basis of the control temperature, the liquid flow corresponding to the multiple kinds of liquid flowing into the heat exchanger is controlled; mixing a plurality of liquids based on a heat exchanger, and respectively inputting the mixed liquid into a thermal insulation layer of a reaction tank and a pipeline of a stirring pipe; compared with the prior art, the technical scheme provided by the invention can avoid out-of-control reaction caused by too high temperature or incomplete reaction caused by too low temperature, and the reaction safety and the reaction efficiency are improved.

Description

Technical Field

[0001] The present application relates to the technical field of automated control, and in particular to a liquid multi-material reaction system and a control method and device thereof. Background Art

[0002] Existing liquid multi-material reaction systems are widely used in industrial applications, especially in the fields of chemistry, pharmaceuticals, and food processing. During the actual operation of traditional liquid multi-material reaction systems, temperature control is crucial to the stability and efficiency of the reaction process.

[0003] In the prior art, liquid reaction systems often rely on simple preset temperature values for heating or cooling, making it difficult to dynamically adjust the temperature according to the actual needs of the reaction, resulting in temperature fluctuations and instability during the reaction, leading to uncontrolled or uneven temperature during the reaction; especially when the temperature is too high, the reaction may get out of control, resulting in side reactions or dangers; and when the temperature is too low, the reaction may be incomplete, resulting in low yield.

[0004] These technical defects mean that there is a large room for improvement in the reaction safety and reaction efficiency of existing liquid multi-material reaction systems; therefore, a more precise and intelligent reaction control method is urgently needed. Summary of the Invention

[0005] The present application provides a liquid multi-material reaction system and a control method and device thereof, which can avoid reaction runaway due to excessively high temperature or incomplete reaction due to excessively low temperature, thereby improving reaction safety and reaction efficiency.

[0006] In the first aspect, the present application provides a control method for a liquid multi-material reaction system, which is applicable to a liquid multi-material reaction system, wherein the liquid multi-material reaction system includes a reaction tank, a heat exchanger, and a stirring tube arranged in the reaction tank; the control method includes: obtaining the reaction tank temperature in the reaction tank, and determining the control temperature based on the reaction tank temperature; determining the liquid flow rate corresponding to each of the multiple liquids flowing into the heat exchanger based on the control temperature; mixing the multiple liquids based on the heat exchanger, and respectively inputting the mixed liquids into the insulation layer of the reaction tank and the pipeline of the stirring tube.

[0007] In one possible implementation, the liquid multi-material reaction system also includes a condenser, a condensing fan arranged in the condenser, and a recovery mechanism. After the mixed liquid is respectively input into the insulation layer of the reaction tank and the pipeline of the stirring tube, it also includes: obtaining the pressure value of the reaction tank, and determining the fan speed of the condensing fan based on the pressure value; controlling the condensing fan to rotate based on the fan speed to suck the water vapor in the reaction tank into the condenser, so that the condenser converts the water vapor into liquid, and based on the recovery mechanism, transporting the liquid back to the reaction tank.

[0008] In a possible implementation, after obtaining the pressure value of the reaction tank, the method further includes: determining a target feed rate of the reaction tank based on the reaction tank temperature and the pressure value; obtaining a current feed rate of the reaction tank, and adjusting the current feed rate based on the target feed rate.

[0009] In one possible implementation, the liquid multi-material reaction system also includes a cooling water tower. After determining the fan speed of the condensing fan, it also includes: when it is detected that the temperature of the reaction tank is greater than the upper limit of the preset temperature threshold, the fan speed of the condensing fan is the maximum preset speed, the current feed speed is 0, and the multi-liquid mixing temperature of the mixed liquid is the minimum preset mixing temperature, the drain outlet of the cooling water tower is controlled to open, and water is injected into the reaction tank through the drain outlet.

[0010] In one possible implementation, the reaction tank temperature in the reaction tank is obtained, and the control temperature is determined based on the reaction tank temperature, specifically including: obtaining the reaction tank temperature in the reaction tank, wherein the reaction tank temperature includes the material temperature; when the reaction tank temperature is the material temperature, obtaining a preset material temperature correspondence table, wherein the material temperature correspondence table includes multiple first preset material temperatures, and a first preset insulation layer temperature and a first preset pipeline temperature corresponding to each first preset material temperature; based on the material temperature, performing data matching processing on the material temperature correspondence table to obtain a target first preset material temperature in the material temperature correspondence table that matches the material temperature; using the target first preset insulation layer temperature corresponding to the target first preset material temperature as the insulation layer temperature of the reaction tank, and using the target first preset pipeline temperature corresponding to the target first preset material temperature as the pipeline temperature of the stirring tube; wherein the insulation layer temperature of the reaction tank and the pipeline temperature of the stirring tube constitute the control temperature.

[0011] In one possible implementation, the multiple liquids are mixed based on the heat exchanger, specifically including: wherein, a heat equalizing fin is provided in the heat exchanger; based on the control temperature, the multi-liquid mixing temperature of the mixed liquid is determined, and based on the multi-liquid mixing temperature, the fin speed of the heat equalizing fin is determined; the heat equalizing fin is controlled to rotate based on the fin speed to mix the multiple liquids flowing into the heat exchanger.

[0012] In one possible implementation, based on the control temperature, the liquid flow rates corresponding to the multiple liquids flowing into the heat exchanger are determined, specifically including: obtaining a preset multi-liquid mixed temperature correspondence table, wherein the multi-liquid mixed temperature correspondence table includes multiple first preset multi-liquid temperatures, and preset liquid flow rates of multiple liquids corresponding to the multiple first preset multi-liquid temperatures; based on the control temperature, performing data matching processing on the multi-liquid mixed temperature correspondence table to obtain a matching target first preset multi-liquid mixed temperature in the multi-liquid mixed temperature correspondence table; based on the multi-liquid mixed temperature correspondence table, determining the target preset liquid flow rates of the multiple liquids corresponding to the target first preset multi-liquid mixed temperature; based on the target preset liquid flow rates of the multiple liquids, respectively determining the liquid flow rates of the multiple liquids flowing into the heat exchanger.

[0013] In one possible implementation, the pressure value of the reaction tank is obtained, and based on the pressure value, the fan speed of the condensing fan is determined, specifically including: obtaining a preset pressure correspondence table, wherein the pressure correspondence table includes multiple preset pressure values and a preset fan speed corresponding to each preset pressure value; based on the pressure value, performing data matching processing on the pressure correspondence table to obtain a target preset pressure value in the pressure correspondence table that matches the pressure value; using the target preset fan speed corresponding to the target preset pressure value as the fan speed of the condensing fan to control the rotation of the condensing fan.

[0014] In the second aspect, the present application provides a control device for a liquid multi-material reaction system, comprising: a reaction tank temperature determination module, a liquid mixing temperature determination module and a multi-liquid mixing module; wherein the reaction tank temperature determination module is used to obtain the reaction tank temperature in the reaction tank, and determine the control temperature based on the reaction tank temperature; the liquid mixing temperature determination module is used to determine the liquid flow rates corresponding to the multiple liquids flowing into the heat exchanger based on the control temperature; the multi-liquid mixing module is used to mix the multiple liquids based on the heat exchanger, and respectively input the mixed liquids into the insulation layer of the reaction tank and the pipeline of the stirring tube.

[0015] In the third aspect, an embodiment of the present application also provides a liquid multi-material reaction system, comprising: a reaction tank, a heat exchanger, a stirring tube, a condenser, a condensing fan, a recovery mechanism, a cooling water tower and a control device for the liquid multi-material reaction system as described above; wherein the reaction tank, the heat exchanger, the stirring tube, the condenser, the condensing fan, the recovery mechanism and the cooling water tower are respectively connected to the control device of the liquid multi-material reaction system; the control device is used to execute the control method of the liquid multi-material reaction system as described in any one of the above.

[0016] In a fourth aspect, an embodiment of the present application further provides a computer device, which includes a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the above method when executing the computer program.

[0017] In a fifth aspect, an embodiment of the present application further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program can implement the above method when executed by a processor.

[0018] The present invention provides a liquid multi-material reaction system and a control method and device thereof, which have the following advantages over the prior art:

[0019] The control method obtains the reaction tank temperature in the reaction tank, determines the control temperature based on the reaction tank temperature, and determines the multi-liquid mixing temperature based on the control temperature, so as to dynamically control the liquid flow rates corresponding to the multiple liquids flowing into the heat exchanger; the heat exchange efficiency of the heat exchanger can be ensured, the utilization of thermal energy can be optimized, and excessive energy waste can be avoided; finally, the mixed liquid obtained based on the mixing in the heat exchanger is respectively input into the insulation layer of the reaction tank and the pipeline of the stirring tube, which can significantly increase the contact area between the material and the heat exchange medium, realize rapid temperature control of the material, make the material in the reaction tank react within a suitable temperature range, avoid incomplete or unsafe reaction due to excessively high or low temperature, and improve reaction efficiency and reaction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0023] Figure 1 This is a flow chart of an embodiment of a control method for a liquid multi-material system provided by the present application;

[0024] Figure 2 This is a schematic structural diagram of an embodiment of a control device for a liquid multi-material system provided by the present application;

[0025] Figure 3 This is a structural schematic diagram of another embodiment of a control device for a liquid multi-material system provided by the present application;

[0026] Figure 4 This is a structural diagram of an embodiment of a liquid multi-material system provided by the present application;

[0027] Figure 5 This is a structural diagram of an electronic device provided by this application. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0030] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0031] It should also be understood that the terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0032] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0033] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0034] Example 1, see Figure 1 , Figure 1 This is a flow chart of an embodiment of a control method for a liquid multi-material system provided by the present application. Figure 1 As shown, it is applicable to a liquid multi-material reaction system, wherein the liquid multi-material reaction system includes a reaction tank, a heat exchanger, and a stirring tube arranged in the reaction tank; the control method includes steps 101 to 103, which are specifically as follows:

[0035] Step 101: Acquire the reaction tank temperature in the reaction tank, and determine the control temperature based on the reaction tank temperature.

[0036] In one embodiment, the reaction tank temperature in the reaction tank includes but is not limited to the material temperature.

[0037] In one embodiment, when the temperature of the reaction tank is the material temperature, the material temperature in the reaction tank is acquired in real time based on a temperature sensor, wherein the temperature sensor includes but is not limited to a thermocouple and a resistance temperature detector.

[0038] Specifically, the temperature sensor is usually installed at different positions of the reaction tank, such as the bottom, top or side of the tank body, to monitor the temperature of the material in the reaction tank in real time.

[0039] In one embodiment, a preset material temperature correspondence table is obtained, wherein the material temperature correspondence table includes a plurality of first preset material temperatures, and a first preset insulation layer temperature and a first preset pipeline temperature corresponding to each first preset material temperature.

[0040] Specifically, the material temperature correspondence table is generated based on a large amount of experimental data or historical production experience. By measuring the material temperature, insulation layer temperature, and pipeline temperature under different production conditions, the relationship between the three is established. For example, under different material temperatures, the temperature of the insulation layer and pipeline is adjusted to observe the impact on the reaction or production efficiency, thereby obtaining the optimal temperature configuration.

[0041] Preferably, the material temperature correspondence table can also be generated by numerical simulation, thermodynamic model or prediction method based on machine learning; these methods can combine the thermodynamic properties, reaction rate and other factors of different materials to accurately predict the insulation layer and pipeline temperature required at a specific material temperature.

[0042] In one embodiment, based on the material temperature, data matching processing is performed on the material temperature correspondence table to obtain a target first preset material temperature in the material temperature correspondence table that matches the material temperature.

[0043] Specifically, based on the material temperature, all first preset material temperatures in the material temperature correspondence table are traversed, and when a first preset material temperature that is the same as the material temperature is traversed, it is used as the target first preset material temperature that matches the material temperature in the material temperature correspondence table.

[0044] Preferably, when the first preset material temperature that is the same as the material temperature is not traversed, the temperature differences between the material temperature and all the first preset material temperatures are calculated respectively, and the first preset material temperature corresponding to the minimum value of the temperature difference is used as the target first preset material temperature that matches the material temperature in the material temperature correspondence table.

[0045] In one embodiment, the target first preset insulation layer temperature corresponding to the target first preset material temperature is used as the insulation layer temperature of the reaction tank, and the target first preset pipe temperature corresponding to the target first preset material temperature is used as the pipe temperature of the stirring pipe.

[0046] In one embodiment, the controlled temperature includes but is not limited to the temperature of the insulation layer of the reaction tank and the pipe temperature of the stirring tube.

[0047] Step 102: Based on the control temperature, determine the liquid flow rates corresponding to the plurality of liquids flowing into the heat exchanger.

[0048] In one embodiment, a multi-liquid mixing temperature of the plurality of liquids flowing into the heat exchanger for mixing is determined based on the control temperature, and a liquid flow rate corresponding to each of the plurality of liquids flowing into the heat exchanger is determined based on the multi-liquid mixing temperature.

[0049] In one embodiment, a preset multi-liquid mixing temperature correspondence table is obtained, wherein the multi-liquid mixing temperature correspondence table includes a plurality of first preset multi-liquid temperatures and preset liquid flow rates of a plurality of liquids corresponding to each of the plurality of first preset multi-liquid temperatures.

[0050] Specifically, since the controlled temperature includes the insulation layer temperature of the reaction tank and the pipe temperature of the stirring tube, in addition to setting multiple first preset multi-liquid temperatures in the multi-liquid mixing temperature correspondence table and setting the preset liquid flow rates of multiple liquids corresponding to the multiple first preset multi-liquid temperatures, the multiple first preset multi-liquid temperatures are also set with corresponding second preset insulation layer temperatures and second preset pipe temperatures.

[0051] Specifically, the preset multi-liquid mixed temperature correspondence table includes a liquid temperature correspondence table and a liquid flow comparison table; wherein, the liquid temperature comparison table includes multiple first preset multi-liquid temperatures, and the second preset insulation layer temperature and the second preset pipeline temperature corresponding to each of the multiple first preset multi-liquid temperatures; the liquid flow comparison table includes multiple first preset multi-liquid temperatures, and the preset liquid flow rates corresponding to each of the multiple liquids corresponding to each of the multiple first preset multi-liquid temperatures.

[0052] Specifically, the liquid temperature comparison table and the liquid flow comparison table are connected based on the same multiple first preset multi-liquid temperatures to form a multi-liquid mixed temperature.

[0053] Specifically, the liquid temperature comparison table is generated based on a large amount of experimental data or historical production experience; by measuring the insulation layer temperature and the pipe temperature of the mixed liquid at different multi-liquid mixing temperatures when it flows through the insulation layer, as well as the pipe of the stirring tube, the relationship between the three is established.

[0054] Preferably, the material temperature correspondence table can also be generated by numerical simulation, thermodynamic model or prediction method based on machine learning; these methods can combine factors such as specific heat capacity, density, fluidity and other parameters of different liquids to accurately predict the insulation layer and pipeline temperature required at a specific material temperature.

[0055] Specifically, the liquid flow comparison table is generated based on a large amount of experimental data or historical production experience. By measuring multiple liquids at different temperatures for heat exchange and mixing, the required mixing ratio of the multiple liquids at the first preset multi-liquid temperature is obtained, that is, the relationship between the liquid flow rates corresponding to the multiple liquids; and the relationship between the two is established; for example, at the same first preset multi-liquid temperature, the preset liquid flow rates corresponding to the multiple liquids are adjusted respectively, based on the heat exchange speed, etc., to obtain the optimal temperature configuration.

[0056] In one embodiment, based on the control temperature, data matching processing is performed on the multi-liquid mixing temperature correspondence table to obtain a matching target first preset multi-liquid mixing temperature in the multi-liquid mixing temperature correspondence table.

[0057] Specifically, since the control temperature includes the insulation layer temperature and the pipeline temperature, the insulation layer temperature and the pipeline temperature are associated with each other to obtain a first associated binary group, and the second preset insulation layer temperature and the second preset pipeline temperature corresponding to each first preset multi-liquid temperature in the multi-liquid mixing temperature correspondence table are associated with each other to obtain a second associated binary group corresponding to each first preset multi-liquid temperature; the similarity between the first associated binary group and the second associated binary group corresponding to each first preset multi-liquid temperature is calculated respectively, and the first preset multi-liquid temperature corresponding to the maximum similarity value is used as the target first preset multi-liquid mixing temperature that matches in the multi-liquid mixing temperature correspondence table.

[0058] In one embodiment, based on the multi-liquid mixing temperature correspondence table, target preset liquid flow rates of the plurality of liquids corresponding to the target first preset multi-liquid mixing temperature are determined.

[0059] Specifically, based on the target first preset multi-liquid mixing temperature, all first preset multi-liquid mixing temperatures in the multi-liquid mixing temperature correspondence table are traversed, and when a first preset multi-liquid mixing temperature that is the same as the target first preset multi-liquid mixing temperature is traversed, the target preset liquid flow rates corresponding to the corresponding multiple liquids are used as the target preset liquid flow rates of the multiple liquids corresponding to the target first preset multi-liquid mixing temperature.

[0060] Preferably, when the first preset multi-liquid mixing temperature that is the same as the target first preset multi-liquid mixing temperature is not traversed, the mixing temperature differences between the target first preset multi-liquid mixing temperature and all the first preset multi-liquid mixing temperatures are calculated respectively, and the target preset liquid flow rates corresponding to the multiple liquids corresponding to the first preset multi-liquid mixing temperature corresponding to the minimum value of the mixing temperature difference are used as the target preset liquid flow rates of the multiple liquids corresponding to the target first preset multi-liquid mixing temperature.

[0061] In one embodiment, since the temperature inside the reaction tank will change dynamically as the reaction proceeds during the reaction process, by using data matching, the appropriate target first preset multi-liquid mixing temperature can be quickly found from the multi-liquid mixing temperature correspondence table in real time according to the change in control temperature, and then the target preset liquid flow rate of multiple liquids can be determined, thereby quickly realizing the subsequent dynamic and precise control of the reaction temperature.

[0062] In one embodiment, the liquid flow rates of the multiple liquids flowing into the heat exchanger are respectively determined based on target preset liquid flow rates of the multiple liquids.

[0063] Specifically, the multiple liquids include but are not limited to high-temperature liquid, low-temperature liquid, and waste heat liquid circulated out from the insulation layer of the reaction tank and the pipeline of the stirring tube.

[0064] Preferably, the liquid flow rates of the multiple liquids flowing into the heat exchanger are the liquid flow rates of the multiple liquids flowing into the heat exchanger at the same time.

[0065] Specifically, a flow sensor is installed on the pipe through which each liquid flows into the heat exchanger to monitor the flow of the liquid flowing into the heat exchanger in real time; wherein the flow sensor can be a mass flow meter, a volume flow meter or an electromagnetic flow meter.

[0066] Preferably, an adjustable flow control valve, such as an electric valve or a pneumatic valve, can be installed on the pipeline through which each liquid flows into the heat exchanger; the flow control valve is used to adjust the liquid flow through the pipeline to meet the preset target flow.

[0067] Step 103: The plurality of liquids are mixed using the heat exchanger, and the mixed liquids are respectively input into the insulation layer of the reaction tank and the pipe of the stirring tube.

[0068] In one embodiment, the heat exchanger is provided with heat-dissipating fins.

[0069] Specifically, if the temperature difference between the two liquids is large during the mixing process of high and low temperature liquids, the heat exchange rate will be slow and multiple liquids cannot be quickly merged; and since the efficiency of heat exchange is closely related to the heat exchange area; therefore, in order to improve the heat exchange efficiency of the heat exchanger, in this embodiment, heat equalizing fins are provided in the heat exchanger to increase the effective heat exchange area.

[0070] Specifically, the heat equalizing fins are evenly distributed inside the heat exchanger, and they can increase the heat exchange area between the mixed liquid and the heat exchanger surface; by increasing the heat exchange area, heat can be more efficiently transferred from the high-temperature liquid to the low-temperature liquid, thereby improving the heat exchange efficiency.

[0071] In one embodiment, after determining the multi-liquid mixing temperature of the mixed liquid based on the control temperature, the fin speed of the heat equalizing fin is determined based on the multi-liquid mixing temperature, and the heat equalizing fin is controlled to rotate based on the fin speed to mix the multiple liquids flowing into the heat exchanger.

[0072] Specifically, in a heat exchanger, in addition to increasing the heat exchange area, the rotation speed of the heat equalizing fins can also be used to increase the turbulence of the mixed liquid in the heat exchanger, thereby improving the efficiency of heat exchange between the mixed liquids and affecting the final mixing temperature.

[0073] Specifically, the multiple liquids are mixed by adjusting the fin speed of the equalizing fin when determining the final multi-liquid mixing temperature, and based on the heat exchange efficiency, the optimal fin speed of the equalizing fin at different multi-liquid mixing temperatures is obtained; and based on this, a fin speed correspondence table is constructed, wherein the fin speed correspondence table includes multiple multi-liquid mixing temperatures and the fin speeds of the equalizing fin corresponding to each of the multiple multi-liquid mixing temperatures.

[0074] Specifically, based on the multi-liquid mixing temperature, data matching processing is performed on the fin speed correspondence table to obtain a target multi-liquid mixing temperature in the fin speed correspondence table that matches the multi-liquid mixing temperature, and the target fin speed corresponding to the target multi-liquid mixing temperature is used as the determined fin speed of the heat equalizing fin.

[0075] Preferably, the multi-liquid mixing temperature is inversely proportional to the fin rotation speed of the corresponding heat-equalizing fin; when the multi-liquid mixing temperature is lower, the fin rotation speed of the heat-equalizing fin is faster, and vice versa.

[0076] In one embodiment, the output end of the heat exchanger is respectively connected to the input end of the insulation layer of the reaction tank and the pipeline input end of the stirring tube, so that the mixed liquid at the multi-liquid mixing temperature is respectively input into the insulation layer of the reaction tank and the pipeline of the stirring tube, which can effectively adjust the temperature in the reaction tank to an appropriate range.

[0077] Preferably, this is because when the multi-liquid mixing temperature is lower, it means that the material temperature in the reaction tank is higher, resulting in higher insulation layer temperature of the reaction tank and pipe temperature of the stirring tube. When the material temperature is too high, it is necessary to quickly rotate the heat-equalizing fins in the heat exchanger to quickly and evenly mix multiple liquids to obtain a mixed liquid with a low multi-liquid mixing temperature, and input it into the insulation layer of the reaction tank and the pipe of the stirring tube to achieve cooling treatment of the material based on the insulation layer of the reaction tank and the pipe of the stirring tube.

[0078] Specifically, because the insulation layer of the reaction tank covers the tank wall of the reaction tank, and the stirring tube is directly inserted into the material for stirring, during the actual reaction process, the outside of the material is directly in contact with the tank wall of the reaction tank, and the inside of the material is directly in contact with the stirring tube, which can greatly increase the contact area between the heat exchange medium and the material, realize a dual heat exchange mechanism, and improve the heat exchange efficiency.

[0079] In one embodiment, the liquid multi-material reaction system further includes a condenser, a condensing fan disposed in the condenser, and a recovery mechanism.

[0080] In one embodiment, when the material temperature of the material in the reaction tank increases, the moisture in the reaction tank may evaporate into water vapor; if the reaction tank is sealed, the water vapor cannot escape at this time, and as the water vapor accumulates, the pressure in the reaction tank will increase. Once the pressure in the reaction tank is too high, it will not only further increase the material temperature in the reaction tank, but may also cause equipment damage or safety hazards; therefore, in this embodiment, an exhaust port is provided for the reaction tank, and a condensing fan is provided at the exhaust port to discharge the water vapor in the reaction tank through the exhaust port, thereby reducing the temperature of the material in the reaction tank by reducing the pressure.

[0081] In one embodiment, a pressure value of the reaction tank is obtained, and based on the pressure value, a fan speed of the condensing fan is determined.

[0082] Specifically, a preset pressure correspondence table is obtained, wherein the pressure correspondence table includes multiple preset pressure values and a preset fan speed corresponding to each preset pressure value; based on the pressure value, data matching processing is performed on the pressure correspondence table to obtain a target preset pressure value in the pressure correspondence table that matches the pressure value; the target preset fan speed corresponding to the target preset pressure value is used as the fan speed of the condensing fan; and based on the fan speed, the rotation of the condensing fan is controlled.

[0083] Specifically, the fan speed of the condensing fan is related to the amount of water vapor inhaled. The higher the fan speed of the condensing fan, the higher the amount of water vapor inhaled; and the lower the fan speed of the condensing fan, the lower the amount of water vapor inhaled.

[0084] In one embodiment, the condensing fan is controlled to rotate based on the fan speed to draw the water vapor in the reaction tank into the condenser so that the condenser converts the water vapor into liquid, and based on the recovery mechanism, the liquid is transported back to the reaction tank.

[0085] Specifically, the condensation fan is used to draw water vapor from the reaction tank into the condenser. The purpose of this process is to bring the water vapor to the condenser. The condenser is provided with multiple condensation pipes, and each condensation pipe is provided with condensate so that the water vapor entering the condenser can be distributed in each condensation pipe. The water vapor is cooled and liquefied based on the condensate in the condensation pipes, and the liquid obtained after liquefaction is deposited in the condensation pipes. The recovery mechanism then transports the liquid back to the reaction tank. This allows the water balance in the reaction tank to be maintained during the process of reducing the pressure and temperature of the reaction tank, avoiding excessive evaporation of water, and ensuring that the material and water ratio remains stable during the reaction process.

[0086] In one embodiment, under certain special circumstances, the mixed liquid at the multi-liquid mixing temperature is respectively input into the insulation layer of the reaction tank and the pipeline of the stirring tube through a heat exchanger to achieve cooling of the material, and after the pressure reduction of the reaction tank is performed based on a condensing fan, the temperature of the material in the reaction tank may still be maintained at a high level. On this basis, the present application further adjusts the material temperature of the material in the reaction tank by controlling the feed rate of the material in the reaction tank.

[0087] In one embodiment, a target feed rate of the material into the reaction tank is determined based on the temperature of the reaction tank and the pressure value.

[0088] Specifically, a preset feed speed correspondence table is obtained, wherein the feed speed correspondence table includes multiple preset feed speeds, and a preset reaction tank temperature and a preset pressure value corresponding to each preset feed speed; based on the reaction tank temperature and the pressure value, data matching processing is performed on the feed speed correspondence table to obtain a matching target preset feed speed in the feed speed correspondence table; and the target preset feed speed is used as the target feed speed for the material to enter the reaction tank.

[0089] Specifically, the reaction tank temperature and the pressure value are associated with each other to obtain a third associated binary group, and the preset reaction tank temperature and the preset pressure value corresponding to each preset feed speed in the feed speed correspondence table are associated with each other to obtain a fourth associated binary group corresponding to each preset feed speed; the similarity between the third associated binary group and the fourth associated binary group corresponding to each preset feed speed is calculated respectively, and the preset feed speed corresponding to the maximum similarity value is used as the target preset feed speed matched in the feed speed correspondence table.

[0090] In one embodiment, a current feed rate of the material into the reaction tank is obtained, and the current feed rate is adjusted based on the target feed rate.

[0091] Specifically, when the material temperature and the pressure value gradually increase, the current feed rate is reduced based on the target feed rate obtained based on the reaction tank temperature and the pressure value; when the reaction tank temperature and the pressure value gradually decrease, the current feed rate is increased based on the target feed rate obtained based on the reaction tank temperature and the pressure value.

[0092] Specifically, the quantity of the material can be one or more; when the material entering the reaction tank is multiple materials, the current feeding speed of the multiple materials entering the reaction tank is obtained respectively, and the current feeding speed of each material is adjusted based on the target feeding speed.

[0093] In one embodiment, due to certain extreme cases, the mixed liquid at the multi-liquid mixing temperature is respectively input into the insulation layer of the reaction tank and the pipe of the stirring tube through a heat exchanger to achieve cooling of the material; the reaction tank is depressurized by a condensing fan; and after adjusting the feed rate, the reaction tank temperature in the reaction tank may still be maintained at a high level, even exceeding the preset upper limit of the reaction tank temperature threshold, which poses a greater safety hazard to the reaction tank; based on this, the present application also discharges cold water into the reaction tank through a cooling water tower to achieve rapid cooling of the reaction tank to ensure safety during the production process.

[0094] In one embodiment, the liquid multi-material reaction system further includes a cooling water tower.

[0095] In one embodiment, when it is detected that the material temperature is greater than the upper limit of a preset temperature threshold, the fan speed of the condensing fan is the maximum preset speed, the current feed speed is 0, and the multi-liquid mixing temperature of the mixed liquid is the minimum preset mixing temperature, the drain outlet of the cooling water tower is controlled to open, and water is injected into the reaction tank through the drain outlet.

[0096] Specifically, the preset temperature threshold upper limit is the upper limit of the maximum material temperature that the reaction tank can withstand, which is preset by the user.

[0097] Specifically, if the material temperature is greater than the upper limit of the preset temperature threshold, it means that the material temperature has reached or exceeded the safety range, and measures need to be taken to prevent damage to the equipment or reaction tank; the condensing fan is a means of cooling and reducing pressure. When the fan speed of the condensing fan is the maximum preset speed, it means that it has been running at the maximum speed and still cannot meet the material cooling demand; and when the multi-liquid mixed temperature is the minimum preset mixed temperature, it indicates that by inputting the low-temperature mixed liquid into the insulation layer and stirring pipe of the reaction tank, the material cooling demand cannot be met; and when the material feeding has been stopped and there is no new material to participate in the next material reaction, and the material temperature cannot be lowered, the drain outlet of the cooling tower is controlled to open, and cold water is injected into the reaction tank through the drain outlet to cool it down. The purpose of injecting cold water is to quickly reduce the temperature of the reaction tank by cooling the outer wall of the reaction tank or directly contacting with the reactants to prevent the temperature from rising further and causing safety problems.

[0098] Example 2, see Figure 2 , Figure 2 is a schematic structural diagram of an embodiment of a control device for a liquid multi-material system provided by the present application. Corresponding to the above-described control method for a liquid multi-material reaction system, the present application also provides a control device for a liquid multi-material reaction system. The control device for a liquid multi-material reaction system includes a module for executing the above-described control method for a liquid multi-material reaction system. The control device for a liquid multi-material reaction system can be configured in a desktop computer, tablet computer, laptop computer, or other terminal. Specifically, the control device for a liquid multi-material reaction system includes a reaction tank temperature determination module 201, a liquid mixing temperature determination module 202, and a multi-liquid mixing module 203.

[0099] The reaction tank temperature determination module 201 is used to obtain the reaction tank temperature in the reaction tank and determine the control temperature based on the reaction tank temperature.

[0100] The liquid mixing temperature determination module 202 is configured to determine the liquid flow rates corresponding to the plurality of liquids flowing into the heat exchanger based on the control temperature.

[0101] The multi-liquid mixing module 203 is used to mix the multiple liquids based on the heat exchanger, and input the mixed liquids into the insulation layer of the reaction tank and the pipeline of the stirring tube respectively.

[0102] The control device for a liquid multi-material reaction system provided in an embodiment of the present application further includes: a pressure regulating module 204 .

[0103] In one embodiment, the pressure regulating module 204 is used to obtain the pressure value of the reaction tank and determine the fan speed of the condensing fan based on the pressure value; control the condensing fan to rotate based on the fan speed, and suck the water vapor in the reaction tank into the condenser so that the condenser converts the water vapor into liquid, and transports the liquid back to the reaction tank based on the recovery mechanism.

[0104] The control device for a liquid multi-material reaction system provided in an embodiment of the present application further includes: a material feed rate adjustment module 205 .

[0105] In one embodiment, the material feed rate adjustment module 205 is used to determine the target feed rate of the reaction tank based on the reaction tank temperature and the pressure value; obtain the current feed rate of the reaction tank, and adjust the current feed rate based on the target feed rate.

[0106] The control device of a liquid multi-material reaction system provided in an embodiment of the present application further includes: a reaction tank water injection module 206; Figure 3 This is a structural schematic diagram of another embodiment of a control device for a liquid multi-material system provided by the present application.

[0107] In one embodiment, the reaction tank water injection module 206 is used to control the drain outlet of the cooling tower to open and inject water into the reaction tank through the drain outlet when it is detected that the temperature of the reaction tank is greater than the upper limit of a preset temperature threshold, the fan speed of the condensing fan is the maximum preset speed, the current feed speed is 0, and the multi-liquid mixing temperature of the mixed liquid is the minimum preset mixing temperature.

[0108] In one embodiment, the reactor temperature determination module 201 is used to obtain the reactor temperature in the reactor, and determine the control temperature based on the reactor temperature, specifically including: obtaining the reactor temperature in the reactor, wherein the reactor temperature includes the material temperature; when the reactor temperature is the material temperature, obtaining a preset material temperature correspondence table, wherein the material temperature correspondence table includes multiple first preset material temperatures, and a first preset insulation layer temperature and a first preset pipeline temperature corresponding to each first preset material temperature; based on the material temperature, performing data matching processing on the material temperature correspondence table to obtain a target first preset material temperature in the material temperature correspondence table that matches the material temperature; using the target first preset insulation layer temperature corresponding to the target first preset material temperature as the insulation layer temperature of the reactor, and using the target first preset pipeline temperature corresponding to the target first preset material temperature as the pipeline temperature of the stirring tube; wherein the insulation layer temperature of the reactor and the pipeline temperature of the stirring tube constitute the control temperature.

[0109] In one embodiment, the multi-liquid mixing module 203 is used to mix the multiple liquids based on the heat exchanger, specifically including: wherein, a heat equalizing fin is provided in the heat exchanger; based on the control temperature, the multi-liquid mixing temperature of the mixed liquid is determined, and based on the multi-liquid mixing temperature, the fin speed of the heat equalizing fin is determined; the heat equalizing fin is controlled to rotate based on the fin speed to mix the multiple liquids flowing into the heat exchanger.

[0110] In one embodiment, the liquid mixing temperature determination module 202 is used to determine the liquid flow rate corresponding to each of the multiple liquids flowing into the heat exchanger based on the control temperature, specifically including: obtaining a preset multi-liquid mixing temperature correspondence table, wherein the multi-liquid mixing temperature correspondence table includes multiple first preset multi-liquid temperatures and preset liquid flow rates of multiple liquids corresponding to each of the multiple first preset multi-liquid temperatures; based on the control temperature, performing data matching processing on the multi-liquid mixing temperature correspondence table to obtain a matching target first preset multi-liquid mixing temperature in the multi-liquid mixing temperature correspondence table; based on the multi-liquid mixing temperature correspondence table, determining the target preset liquid flow rates of the multiple liquids corresponding to the target first preset multi-liquid mixing temperature; based on the target preset liquid flow rates of the multiple liquids, respectively determining the liquid flow rates of the multiple liquids flowing into the heat exchanger.

[0111] In one embodiment, the material feed speed adjustment module 205 is used to obtain the pressure value of the reaction tank and determine the fan speed of the condensing fan based on the pressure value, specifically including: obtaining a preset pressure correspondence table, wherein the pressure correspondence table includes multiple preset pressure values and a preset fan speed corresponding to each preset pressure value; based on the pressure value, performing data matching processing on the pressure correspondence table to obtain a target preset pressure value in the pressure correspondence table that matches the pressure value; using the target preset fan speed corresponding to the target preset pressure value as the fan speed of the condensing fan to control the rotation of the condensing fan.

[0112] The control device of the liquid multi-material system can implement the control method of the liquid multi-material system of the above method embodiment. The options in the above method embodiment are also applicable to this embodiment and will not be described in detail here.

[0113] Example 4, see Figure 4 , Figure 4 This is a structural diagram of an embodiment of a liquid multi-material system provided by the present application. Figure 4As shown, the liquid multi-material system includes a reaction tank 401, a heat exchanger 402, a stirring tube 403, a condenser 404, a condensing fan 405, a recovery mechanism 406, a cooling tower 407 and the control device 408 of the liquid multi-material reaction system described above.

[0114] In one embodiment, the reaction tank 401, the heat exchanger 402, the stirring tube 403, the condenser 404, the condensing fan 405, the recovery mechanism 406 and the cooling tower 407 are respectively connected to the control device 408 of the liquid multi-material reaction system;

[0115] In one embodiment, the control device 408 is used to execute the control method of the liquid multi-material reaction system as described above.

[0116] The above-mentioned liquid multi-material system can implement the control method of the liquid multi-material system of the above-mentioned method embodiment. The optional options in the above-mentioned method embodiment are also applicable to this embodiment and will not be described in detail here.

[0117] like Figure 5 As shown, Figure 5 This is a structural diagram of an electronic device provided by the present application; it includes a processor 111, a communication interface 112, a memory 113 and a communication bus 114, wherein the processor 111, the communication interface 112, and the memory 113 communicate with each other through the communication bus 114, and the memory 113 is used to store computer programs.

[0118] In one embodiment of the present application, the processor 111 is configured to implement the control method for a liquid multi-material system provided by any one of the aforementioned method embodiments when executing a program stored in the memory 113 .

[0119] Those skilled in the art will appreciate that all or part of the steps in the method of the above-described embodiment can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the steps in the method of the above-described embodiment.

[0120] Therefore, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the control method for a liquid multi-material system provided in any of the aforementioned method embodiments.

[0121] The storage medium is a physical, non-transient storage medium, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a magnetic disk, or an optical disk, etc. Any physical storage medium capable of storing program code can be non-volatile or volatile.

[0122] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0123] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and other division methods may be used in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not implemented.

[0124] The steps in the method of the embodiment of the present application can be adjusted in order, combined, and deleted according to actual needs. The units in the device of the embodiment of the present application can be combined, divided, and deleted according to actual needs. In addition, the functional units in the various embodiments of the present application can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0125] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, terminal, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.

[0126] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0127] Obviously, those skilled in the art may make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, as long as these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

[0128] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A control method for a liquid multi-material reaction system, characterized in that: Applicable to a liquid multi-material reaction system, wherein the liquid multi-material reaction system includes a reaction tank, a heat exchanger, and a stirring tube arranged in the reaction tank; the control method includes: Acquiring a reaction tank temperature in the reaction tank, and determining a control temperature based on the reaction tank temperature; determining liquid flow rates corresponding to respective ones of the plurality of liquids flowing into the heat exchanger based on the control temperature; The plurality of liquids are mixed based on the heat exchanger, and the mixed liquids are respectively input into the insulation layer of the reaction tank and the pipeline of the stirring tube.

2. A control method for a liquid multi-material reaction system according to claim 1, characterized in that: The liquid multi-material reaction system further includes a condenser, a condensing fan provided in the condenser, and a recovery mechanism. After the mixed liquid is respectively input into the insulation layer of the reaction tank and the pipeline of the stirring tube, the system further includes: Obtaining a pressure value of the reaction tank, and determining a fan speed of the condensing fan based on the pressure value; The condensing fan is controlled to rotate based on the fan speed, and the water vapor in the reaction tank is sucked into the condenser, so that the condenser converts the water vapor into liquid, and based on the recovery mechanism, the liquid is transported back to the reaction tank.

3. A control method for a liquid multi-material reaction system according to claim 2, characterized in that: After obtaining the pressure value of the reaction tank, the method further includes: determining a target feed rate for the reaction tank based on the reaction tank temperature and the pressure value; A current feed rate of the reaction tank is obtained, and the current feed rate is adjusted based on the target feed rate.

4. A control method for a liquid multi-material reaction system according to claim 3, characterized in that: The liquid multi-material reaction system further includes a cooling tower, and after determining the fan speed of the condensing fan, further includes: When it is detected that the temperature of the reaction tank is greater than the preset temperature threshold upper limit, the fan speed of the condensing fan is the preset maximum speed, the current feed speed is 0, and the multi-liquid mixing temperature of the mixed liquid is the preset minimum mixing temperature, the drain outlet of the cooling water tower is controlled to open, and water is injected into the reaction tank through the drain outlet.

5. The control method for a liquid multi-material reaction system according to claim 1, wherein obtaining the reaction tank temperature in the reaction tank and determining the control temperature based on the reaction tank temperature specifically comprises: Acquiring the reaction tank temperature in the reaction tank, wherein the reaction tank temperature includes the material temperature; When the temperature of the reaction tank is the material temperature, obtaining a preset material temperature correspondence table, wherein the material temperature correspondence table includes a plurality of first preset material temperatures, and a first preset insulation layer temperature and a first preset pipeline temperature corresponding to each first preset material temperature; Based on the material temperature, performing data matching processing on the material temperature correspondence table to obtain a target first preset material temperature that matches the material temperature in the material temperature correspondence table; The target first preset insulation layer temperature corresponding to the target first preset material temperature is used as the insulation layer temperature of the reaction tank, and the target first preset pipeline temperature corresponding to the target first preset material temperature is used as the pipeline temperature of the stirring tube; wherein, the insulation layer temperature of the reaction tank and the pipeline temperature of the stirring tube constitute the control temperature.

6. A control method for a liquid multi-material reaction system according to claim 1, characterized in that: The heat exchanger is used to mix the multiple liquids. include: Wherein, the heat exchanger is provided with heat-equalizing fins; determining a multi-liquid mixed temperature of the mixed liquid based on the control temperature, and determining a fin rotation speed of the heat-saturating fin based on the multi-liquid mixed temperature; The heat equalizing fin is controlled to rotate based on the fin rotation speed to mix the plurality of liquids flowing into the heat exchanger.

7. A control method for a liquid multi-material reaction system according to claim 1, characterized in that: Determining liquid flow rates corresponding to each of the plurality of liquids flowing into the heat exchanger based on the controlled temperature specifically includes: Obtaining a preset multi-liquid mixing temperature correspondence table, wherein the multi-liquid mixing temperature correspondence table includes a plurality of first preset multi-liquid temperatures and preset liquid flow rates of a plurality of liquids corresponding to each of the plurality of first preset multi-liquid temperatures; Based on the control temperature, performing data matching processing on the multi-liquid mixing temperature correspondence table to obtain a target first preset multi-liquid mixing temperature that matches the multi-liquid mixing temperature correspondence table; determining target preset liquid flow rates of the plurality of liquids corresponding to the target first preset multi-liquid mixing temperature based on the multi-liquid mixing temperature correspondence table; Liquid flow rates of the plurality of liquids flowing into the heat exchanger are respectively determined based on target preset liquid flow rates of the plurality of liquids.

8. The control method for a liquid multi-material reaction system according to claim 2, characterized in that: Obtaining a pressure value of the reaction tank and determining a fan speed of the condensing fan based on the pressure value specifically includes: Obtaining a preset pressure correspondence table, wherein the pressure correspondence table includes a plurality of preset pressure values and a preset fan speed corresponding to each preset pressure value; Based on the pressure value, performing data matching processing on the pressure correspondence table to obtain a target preset pressure value in the pressure correspondence table that matches the pressure value; The target preset fan speed corresponding to the target preset pressure value is used as the fan speed of the condensing fan to control the rotation of the condensing fan.

9. A control device for a liquid multi-material reaction system, characterized in that: include: Reaction tank temperature determination module, liquid mixing temperature determination module and multi-liquid mixing module; The reactor temperature determination module is configured to obtain the reactor temperature in the reactor and determine the control temperature based on the reactor temperature. The liquid mixing temperature determination module is configured to determine the liquid flow rates corresponding to the plurality of liquids flowing into the heat exchanger based on the control temperature; The multi-liquid mixing module is used to mix the multiple liquids based on the heat exchanger, and input the mixed liquids into the insulation layer of the reaction tank and the pipeline of the stirring tube respectively.

10. A liquid multi-material reaction system, characterized in that: include: A reaction tank, a heat exchanger, a stirring tube, a condenser, a condensing fan, a recovery mechanism, a cooling tower, and a control device for a liquid multi-material reaction system according to claim 9; The reaction tank, the heat exchanger, the stirring tube, the condenser, the condensing fan, the recovery mechanism and the cooling water tower are respectively connected to the control device of the liquid multi-material reaction system; The control device is used to execute the control method of the liquid multi-material reaction system according to any one of claims 1 to 8.

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