Extraction device for preparing gardenia seed oil

Abstract

The invention relates to the technical field of cape jasmine seed oil extraction devices, in particular to a cape jasmine seed oil extraction device which comprises a support, a spiral conveying auger, an extraction kettle, a separator, a carbon dioxide storage tank, a heat exchanger and a high-pressure pump. The spiral conveying auger is fixedly connected to the exterior of the rack, the input end of the spiral conveying auger is fixedly connected with the discharging end of the bottom of the crushing shell, the input end of the extraction kettle is fixedly connected with the output end of the spiral conveying auger, and the output end of the extraction kettle is fixedly connected with a conveying pipe; according to the invention, after the gardenia seeds are crushed by the crushing assembly, the structure and the property of the gardenia seeds are more beneficial to extraction, the extraction efficiency of the grease is further improved, and the supercritical carbon dioxide extraction process is carried out at low temperature, so that the damage of heat-sensitive components of the grease caused by high temperature in the traditional method is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of gardenia seed oil extraction equipment, in particular to an extraction device for preparing gardenia seed oil. Background Art

[0002] Gardenia jasminoides, a common plant, contains gardenia seed oil, which has rich nutritional value and broad application prospects. Gardenia seed oil is rich in unsaturated fatty acids, such as linoleic acid and oleic acid, which have numerous health benefits, such as lowering blood lipids and preventing cardiovascular disease. In industry, gardenia seed oil is also used in cosmetics, lubricants, and other products. However, traditional gardenia seed oil extraction methods and equipment have numerous shortcomings, limiting its efficient extraction and large-scale production.

[0003] In the existing art, pressing is a relatively common traditional extraction method. Its principle is to squeeze the oil from the gardenia seeds through mechanical pressure. In practice, screw presses or hydraulic presses are usually used. Screw presses use the rotation of the screw shaft to generate pressure, pushing the material toward the outlet, and in this process, the oil is squeezed out. Hydraulic presses use a hydraulic system to apply strong pressure, forcing the material to release oil under high pressure. However, the pressing process generates heat, which affects the quality of the oil. Summary of the Invention

[0004] Aiming at the technical problem that the extraction method of pressing adopted in the prior art affects the quality of oil, the present invention provides an extraction device for preparing gardenia seed oil.

[0005] The technical solution adopted by the present invention is: a device for preparing gardenia seed oil extraction, comprising: a bracket, a spiral conveying auger, an extraction kettle, a separator, a carbon dioxide storage tank, a heat exchanger and a high-pressure pump, wherein the bracket is fixedly connected to a crushing shell, a crushing assembly is provided in the crushing shell, the spiral conveying auger is fixedly connected to the outside of the frame, and the input end of the spiral conveying auger is fixedly connected to the discharge end at the bottom of the crushing shell, the input end of the extraction kettle is fixedly connected to the output end of the spiral conveying auger, the output end of the extraction kettle is fixedly connected to a delivery pipe, the delivery pipe is fixedly connected to the input end of the separator, and the high-pressure pump is used to transport the carbon dioxide in the carbon dioxide storage tank to the heat exchanger for heat exchange.

[0006] In one embodiment, the crushing assembly includes a rotating rod rotatably connected to the crushing shell and multiple groups of crushing knives fixedly connected to the outside of the rotating rod. The outside of the bracket is fixedly connected to a motor, and the output end of the motor and the outside of the rotating rod are fixedly connected to a pulley, and the outside of the pulley is provided with a belt.

[0007] In one embodiment, the input end of the high-pressure pump is fixedly connected to a first pipe, the first pipe is fixedly connected to the inside of the carbon dioxide storage tank, the output end of the high-pressure pump is fixedly connected to a second pipe, the second pipe is fixedly connected to the input end of the heat exchanger, the output end of the heat exchanger is fixedly connected to a third pipe, one end of the third pipe is fixedly connected to the inside of the extraction kettle.

[0008] In one embodiment, a driving machine is fixedly connected to the top of the extraction kettle, a stirring rod is rotatably connected inside the extraction kettle, and an output end of the driving machine is fixedly connected to the stirring rod.

[0009] In one embodiment, the method further comprises a control and management unit, which includes an extraction process control system and a data management and analysis system.

[0010] In one embodiment, the extraction process control system includes: a temperature control module, a pressure control module and a flow control module.

[0011] In one embodiment, the temperature control module uses a PID control algorithm to adjust the flow rate of the cooling medium of the heat exchanger to control the temperature of the supercritical carbon dioxide fluid. The PID control formula is:

[0012]

[0013] Where u(t) is the controller output, i.e. the cooling medium flow rate adjustment; K p is the proportional coefficient, T i is the integration time constant, T d is the differential time constant; e(t) is the current temperature setting value (T set ) and the actual measured value (T meas ) error, that is, e(t)=T set -T meas .

[0014] In one embodiment, the pressure control module adjusts the carbon dioxide pressure by using a frequency converter of a high-pressure pump, using a PID control algorithm;

[0015] Among them, the error of pressure control e p (t) = P set -P meas , P set is the set pressure value, P meas is the actual measured pressure value; the controller output u p (t) Used to adjust the frequency of the inverter and set the upper limit of pressure P max , when P meas ≥P max When the pressure control system automatically starts the safety protection program.

[0016] In one embodiment, the flow control module controls the carbon dioxide flow by adjusting the opening of the flow control valve in the high-pressure pump, using a flow closed-loop control method, and the flow control error e q (t) = Q set -Q meas , Q set is the set flow value, Q meas is the actual measured flow value; the regulating valve opening adjustment u is calculated based on the error q (t), its control algorithm adopts the method based on model predictive control (MPC);

[0017] MPC establishes a system prediction model to predict the flow rate change trend at future moments. Combining the set value and constraints, it performs rolling optimization calculation of the control quantity to make the flow rate track the set value. The prediction model is established based on the material balance and energy balance equations:

[0018]

[0019] Where V is the volume of the fluid in the extraction kettle, Qin is the inlet flow rate, and Qout is the outlet flow rate.

[0020] In one embodiment, the data management and analysis system includes process performance analysis;

[0021] Among them, process performance analysis: using data analysis tools to conduct statistical analysis on collected data and calculate key performance indicators (KPIs), including oil yield, oil purity, and energy consumption;

[0022] The oil yield calculation formula is:

[0023]

[0024] By analyzing the production data of different batches, we draw a trend chart of oil yield over time to evaluate the long-term operation stability and extraction effect of the device. At the same time, we analyze the correlation between operating parameters such as temperature, pressure, and flow rate and oil yield, and establish a multiple linear regression model:

[0025] Oil yield = β0 + β1T + β2P + β3Q + ∈

[0026] Among them, β0 is a constant term, β1, β2, and β3 are regression coefficients, T, P, and Q are temperature, pressure, and flow rate, respectively, and ∈ is an error term. The influence of each parameter on the oil yield is determined through regression analysis.

[0027] The beneficial effects of the present invention are:

[0028] 1. Compared with the existing technology, in the present invention, after the gardenia seeds are crushed by a crushing component, the structure and properties of the gardenia seeds are more conducive to extraction, further improving the extraction efficiency of the oil. The supercritical carbon dioxide extraction process is then carried out at a low temperature, avoiding the destruction of heat-sensitive components of the oil caused by high temperature in the traditional method, retaining the nutrients and flavor substances in the gardenia seed oil to the greatest extent, and improving the quality of the oil.

[0029] 2. Compared with the prior art, the present invention can effectively improve the extraction efficiency and product quality of gardenia seed oil, reduce energy consumption and production costs, and enhance the operation stability and reliability of the device through the setting of the control management unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of area A in the middle;

[0032] Figure 3 It is a side structural schematic diagram of the present invention;

[0033] Figure 4 It is a schematic diagram of the top structure of the present invention;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing seat in the present invention.

[0035] The following are marked in the figure:

[0036] 100, bracket; 1001, crushing shell; 1002, screw conveyor; 103, motor; 104, pulley; 105, rotating rod; 106, crushing knife; 107, filter plate;

[0037] 200, extraction kettle; 2001, delivery pipe;

[0038] 300, separator;

[0039] 400, high-pressure pump; 4001, first pipeline; 4002, second pipeline;

[0040] 500. Carbon dioxide storage tank;

[0041] 600. Heat exchanger; 6001. Third pipeline. DETAILED DESCRIPTION

[0042] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] The following is combined with Figure 1-5 The present invention is further described.

[0045] In order to solve the problems existing in the background technology, the present application proposes the following technical solutions: A device for preparing gardenia seed oil extraction, comprising: a bracket 100, a spiral conveying auger 1002, an extraction kettle 200, a separator 300, a carbon dioxide storage tank 500, a heat exchanger 600 and a high-pressure pump 400, a crushing shell 1001 is fixedly connected to the bracket 100, a filter plate 107 is fixedly connected to the bottom of the crushing shell 1001, a crushing assembly is provided in the crushing shell 1001, and the crushing assembly is located above the filter plate 107.

[0046] In the specific design, the crushing assembly includes a rotating rod 105 rotatably connected to the crushing shell 1001 and multiple groups of crushing knives 106 fixedly connected to the outside of the rotating rod 105. The outside of the bracket 100 is fixedly connected to the motor 103, and the output end of the motor 103 and the outside of the rotating rod 105 are fixedly connected to the pulley 104. The outside of the pulley 104 is provided with a belt. The motor 103 drives the rotating rod 105 to rotate through the cooperation of the pulley 104 and the belt, and the rotating rod 105 drives the crushing knives 106 to rotate, thereby crushing the gardenia seeds into particles of uniform size.

[0047] In this embodiment, the spiral conveying auger 1002 is fixedly connected to the outside of the frame, and the input end of the spiral conveying auger 1002 is fixedly connected to the discharge end at the bottom of the crushing shell 1001, the input end of the extraction kettle 200 is fixedly connected to the output end of the spiral conveying auger (a sealing valve is installed between the two), the output end of the extraction kettle 200 is fixedly connected to the delivery pipe 2001, the delivery pipe 2001 is fixedly connected to the input end of the separator 300, and the high-pressure pump 400 is used to transport the carbon dioxide in the carbon dioxide storage tank 500 to the heat exchanger 600 for heat exchange.

[0048] Among them, the input end of the high-pressure pump 400 is fixedly connected to the first pipe 4001, the first pipe 4001 is fixedly connected to the carbon dioxide storage tank 500, the output end of the high-pressure pump 400 is fixedly connected to the second pipe 4002, the second pipe 4002 is fixedly connected to the input end of the heat exchanger 600, the output end of the heat exchanger 600 is fixedly connected to the third pipe 6001, one end of the third pipe 6001 is fixedly connected to the extraction kettle 200, and the high-pressure pump 400 pressurizes the carbon dioxide in the carbon dioxide storage tank 500 through the first pipe 4001, and then transports it to the heat exchanger 600 through the second pipe 4002 for heat exchange. The pressurized carbon dioxide enters the heat exchanger 600 and is cooled to below the critical temperature to form a supercritical carbon dioxide fluid, which is finally transported to the extraction kettle 200. The supercritical carbon dioxide fluid has good solubility and diffusivity, and can quickly penetrate into the interior of the gardenia seed particles to dissolve the oil.

[0049] As another embodiment, a driving machine is fixedly connected to the top of the extraction kettle 200, a stirring rod is rotatably connected inside the extraction kettle 200, and the output end of the driving machine is fixedly connected to the stirring rod. The driving machine drives the stirring rod to rotate, which can accelerate the reaction of the extraction kettle 200.

[0050] The above technical solution is explained as follows:

[0051] First, the gardenia seeds are poured into the crushing shell 1001, and then the motor 103 is started to work, which drives the crushing blade 106 to rotate, thereby crushing the gardenia seeds into particles of uniform size. Subsequently, the spiral conveying auger 1002 transports the crushed gardenia seeds to the extraction kettle 200;

[0052] The high-pressure pump 400 pressurizes the carbon dioxide in the carbon dioxide storage tank 500 through the first pipe 4001, and then transports it to the heat exchanger 600 through the second pipe 4002 for heat exchange. The pressurized carbon dioxide enters the heat exchanger 600 and is cooled to below the critical temperature to form a supercritical carbon dioxide fluid, which is finally transported to the extraction kettle 200. The supercritical carbon dioxide fluid has good solubility and diffusivity, and can quickly penetrate into the gardenia seed particles, dissolving the oil, and finally filtering and separating it through the separator 300.

[0053] The separator 300 utilizes the difference in solubility of supercritical carbon dioxide fluid for oil and impurities at different pressures to separate oil from the supercritical carbon dioxide fluid by reducing pressure. The filter adopts high-precision membrane filtration technology to further remove tiny impurities in the oil and improve the purity of the oil.

[0054] In a further design, this embodiment also includes a control management unit, which includes an extraction process control system and a data management and analysis system.

[0055] The extraction process control system includes: a temperature control module, a pressure control module and a flow control module.

[0056] The temperature control module uses the PID control algorithm to adjust the flow of the cooling medium in the heat exchanger and control the temperature of the supercritical carbon dioxide fluid. The PID control formula is:

[0057]

[0058] Where u(t) is the controller output, i.e. the cooling medium flow rate adjustment; K p is the proportional coefficient, which determines the response strength of the controller to the error; T i is the integration time constant, used to eliminate the system steady-state error; T d is the differential time constant, which can improve the system response speed and stability; e(t) is the current temperature setting value (T set ) and the actual measured value (T meas ) error, that is, e(t)=T set -T meas .

[0059] In practical applications, K is determined by experiments or model-based parameter tuning methods according to the system dynamic characteristics and response requirements. p 、T i 、T d The optimal value ensures that the extraction temperature is stable in the optimal range (such as 35-40℃).

[0060] The above technical solution is explained as follows: The PID algorithm can accurately adjust the cooling medium flow rate, quickly respond to temperature changes, effectively eliminate steady-state errors, improve system response speed and stability, and ensure that the supercritical carbon dioxide fluid temperature is stable within an appropriate range, thereby ensuring that the gardenia seed oil extraction process is efficient and stable, and improving product quality.

[0061] The pressure control module adjusts the carbon dioxide pressure by using the frequency converter of the high-pressure pump and adopts a PID control algorithm;

[0062] Among them, the error of pressure control e p (t) = P set -P meas , P set is the set pressure value, P meas is the actual measured pressure value; the controller output u p(t) is used to adjust the frequency of the inverter, thereby changing the speed of the high-pressure pump motor and the output pressure of carbon dioxide. At the same time, in order to prevent safety accidents caused by excessive pressure, a pressure upper limit value P is set. max , when P meas ≥P max When the pressure reaches 0.05°C, the pressure control system automatically starts the safety protection program, such as stopping the high-pressure pump and opening the pressure relief valve.

[0063] The flow control module controls the carbon dioxide flow by adjusting the opening of the flow control valve in the high-pressure pump, adopting a flow closed-loop control method, and the flow control error e q (t) = Q set -Q meas , Q set is the set flow value, Q meas is the actual measured flow value; the regulating valve opening adjustment u is calculated based on the error q (t), its control algorithm adopts the method based on model predictive control (MPC);

[0064] The above technical solution is explained as follows: Based on the PID algorithm, the pressure is adjusted according to the error between the set pressure value and the actual measured value, and an upper pressure limit is set to activate the safety protection program. The flow control module controls the flow by adjusting the opening of the high-pressure pump flow control valve. It uses closed-loop flow control and a model predictive control (MPC)-based method to calculate the valve opening adjustment amount based on the error between the set flow value and the actual measured value. The beneficial effect is to accurately control the pressure and flow, ensure the stability of the extraction process, improve the extraction efficiency and product quality, while ensuring system safety and avoiding accidents caused by excessive pressure. Model predictive control can also respond to flow changes in advance, enhancing the stability and adaptability of the system.

[0065] In the further design, MPC establishes a system prediction model to predict the flow rate change trend at future moments. Combining the set value and the constraint conditions, it optimizes the calculation of the control quantity in a rolling manner to make the flow rate track the set value while avoiding the adverse effects of excessive flow fluctuations on the extraction process. The prediction model can be established based on the material balance and energy balance equations:

[0066]

[0067] Where V is the volume of the fluid in the extraction kettle, Qin is the inlet flow rate, and Qout is the outlet flow rate. By discretizing the model and performing parameter identification based on actual measurement data, an accurate prediction model is obtained for flow control.

[0068] The data management and analysis system includes process performance analysis;

[0069] Among them, process performance analysis: using data analysis tools to conduct statistical analysis on collected data and calculate key performance indicators (KPIs), including oil yield, oil purity, and energy consumption;

[0070] The oil yield calculation formula is:

[0071]

[0072] By analyzing the production data of different batches, we draw a trend chart of oil yield over time to evaluate the long-term operation stability and extraction effect of the device. At the same time, we analyze the correlation between operating parameters such as temperature, pressure, and flow rate and oil yield, and establish a multiple linear regression model:

[0073] Oil yield = β0 + β1T + β2P + β3Q + ∈

[0074] Among them, β0 is a constant term, β1, β2, and β3 are regression coefficients, T, P, and Q are temperature, pressure, and flow rate, respectively, and ∈ is an error term. The influence of each parameter on the oil yield is determined through regression analysis.

[0075] The technical solution is explained as follows: A predictive model based on material and energy balances is used to predict flow rate fluctuations, and precise flow rate control is achieved through discretization and parameter identification. The data management and analysis system focuses on process performance analysis, using tools to statistically calculate key performance indicators, such as oil yield. Data analysis creates trend charts and establishes multivariate linear regression models to explore the relationship between operating parameters and oil yield. This results in precise and stable flow rate control, improving extraction stability. Data analysis and mining evaluate device performance and clarify parameter impacts, providing a basis for process optimization, improving oil yield, and ensuring long-term stable device operation.

[0076] Quality traceability and optimization: Product quality traceability is achieved by combining oil quality test data (such as fatty acid composition, peroxide value, etc.) with production process data. Data mining techniques, such as association rule mining, are used to analyze the potential relationship between production process parameters and oil quality, identifying key factors affecting oil quality. For example, by mining frequent item sets using the Apriori algorithm, it was found that when the extraction temperature is 37-38°C and the pressure is 20-22MPa, the unsaturated fatty acid content in the produced oil is higher and the peroxide value is lower. This provides guidance for optimizing the production process and improving product quality consistency and stability.

[0077] In summary, in the present invention, by controlling the setting of the management unit, the extraction efficiency and product quality of gardenia seed oil can be effectively improved, energy consumption and production costs can be reduced, the operation stability and reliability of the device can be enhanced, and at the same time, comprehensive production management support can be provided for the enterprise, thereby improving the enterprise's economic benefits and market competitiveness.

[0078] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0079] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for preparing gardenia seed oil extraction, characterized in that, include: A bracket (100), a crushing shell (1001) is fixedly connected to the bracket (100), and a crushing assembly is provided in the crushing shell (1001); A spiral conveying auger (1002), wherein the spiral conveying auger (1002) is fixedly connected to the outside of the frame, and the input end of the spiral conveying auger (1002) is fixedly connected to the discharge end at the bottom of the crushing shell (1001); An extraction kettle (200), wherein the input end of the extraction kettle (200) is fixedly connected to the output end of the spiral conveying auger; The separator (300) is fixedly connected to the output end of the extraction kettle (200) with a delivery pipe (2001), and the delivery pipe (2001) is fixedly connected to the input end of the separator (300); Carbon dioxide storage tank (500); heat exchanger (600); and a high-pressure pump (400), wherein the high-pressure pump (400) is used to transport the carbon dioxide in the carbon dioxide storage tank (500) to the heat exchanger (600) for heat exchange.

2. The device for preparing gardenia seed oil according to claim 1, characterized in that: The crushing assembly comprises a rotating rod (105) rotatably connected to a crushing shell (1001) and a plurality of groups of crushing knives (106) fixedly connected to the outside of the rotating rod (105); the outside of the bracket (100) is fixedly connected to a motor (103); the output end of the motor (103) and the outside of the rotating rod (105) are fixedly connected to a pulley (104); and the outside of the pulley (104) is provided with a belt.

3. The device for preparing gardenia seed oil according to claim 2, characterized in that: The input end of the high-pressure pump (400) is fixedly connected to a first pipe (4001), and the first pipe (4001) is fixedly connected to the inside of the carbon dioxide storage tank (500). The output end of the high-pressure pump (400) is fixedly connected to a second pipe (4002), and the second pipe (4002) is fixedly connected to the input end of the heat exchanger (600). The output end of the heat exchanger (600) is fixedly connected to a third pipe (6001), and one end of the third pipe (6001) is fixedly connected to the inside of the extraction kettle (200).

4. The device for preparing gardenia seed oil according to claim 3, characterized in that: A driving machine is fixedly connected to the top of the extraction kettle (200), a stirring rod is rotatably connected inside the extraction kettle (200), and an output end of the driving machine is fixedly connected to the stirring rod.

5. The device for preparing gardenia seed oil according to claim 1, characterized in that: It also includes a control and management unit, which includes an extraction process control system and a data management and analysis system.

6. The device for extracting gardenia seed oil according to claim 5, characterized in that: The extraction process control system includes: a temperature control module, a pressure control module and a flow control module.

7. The device for preparing gardenia seed oil according to claim 6, characterized in that: The temperature control module uses a PID control algorithm to adjust the flow rate of the heat exchanger cooling medium and control the temperature of the supercritical carbon dioxide fluid. The PID control formula is: Where u(t) is the controller output, i.e. the cooling medium flow rate adjustment; K p is the proportional coefficient, T i is the integration time constant, T d is the differential time constant; e(t) is the current temperature setting value (T set ) and the actual measured value (T meas ) error, that is, e(t)=T set -T meas .

8. The device for preparing gardenia seed oil according to claim 7, characterized in that: The pressure control module adjusts the carbon dioxide pressure by using the frequency converter of the high-pressure pump and adopts a PID control algorithm; Among them, the error of pressure control e p (t) = P set -P meas , P set is the set pressure value, P meas is the actual measured pressure value; the controller output u p (t) Used to adjust the frequency of the inverter and set the upper limit of pressure P max , when P meas ≥P max When the pressure control system automatically starts the safety protection program.

9. The device for extracting gardenia seed oil according to claim 8, characterized in that: The flow control module controls the carbon dioxide flow by adjusting the opening of the flow control valve in the high-pressure pump, adopting a flow closed-loop control method, and the flow control error e q (t) = Q set -Q meas , Q set is the set flow value, Q meas is the actual measured flow value; the regulating valve opening adjustment u is calculated based on the error q (t), its control algorithm adopts the method based on model predictive control (MPC); MPC establishes a system prediction model to predict the flow rate change trend at future moments. Combining the set value and constraints, it performs rolling optimization calculation of the control quantity to make the flow rate track the set value. The prediction model is established based on the material balance and energy balance equations: Where V is the volume of the fluid in the extraction kettle, Qin is the inlet flow rate, and Qout is the outlet flow rate.

10. The device for extracting gardenia seed oil according to claim 5, characterized in that: The data management and analysis system includes process performance analysis; Among them, process performance analysis: using data analysis tools to conduct statistical analysis on collected data and calculate key performance indicators (KPIs), including oil yield, oil purity, and energy consumption; The oil yield calculation formula is: By analyzing the production data of different batches, we draw a trend chart of oil yield over time to evaluate the long-term operation stability and extraction effect of the device. At the same time, we analyze the correlation between operating parameters such as temperature, pressure, and flow rate and oil yield, and establish a multiple linear regression model: Oil yield = β0 + β1T + β2P + β3Q + ∈ Among them, β0 is a constant term, β1, β2, and β3 are regression coefficients, T, P, and Q are temperature, pressure, and flow rate, respectively, and ∈ is an error term. The influence of each parameter on the oil yield is determined through regression analysis.

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