Essence thermal reaction on-line monitoring device

Abstract

The utility model belongs to the technical field of essence production, particularly relates to an essence thermal reaction on-line monitoring device, and aims to solve the problems of low efficiency and incapability of reflecting dynamic changes in real time due to the fact that solution concentration and H value detection depends on manual regular sampling in conventional essence thermal reaction monitoring. The temperature and air pressure key parameters in the reaction tank are obtained in real time through the monitoring assembly, it is ensured that the reaction is carried out under the optimal condition, the optical sensor and the pH sensor monitor the solution concentration on line, the monitoring timeliness and accuracy are improved, the operation is simple, and the cost is low. An infrared liquid level sensor is matched with an electric flow regulating valve to intelligently control the backflow speed of a solution in the detection cylinder and a solution circulation structure to continuously sample and detect, so that the concentration is comprehensively and timely monitored, and an operator can master the dynamic state of the solution in real time.

Description

Technical Field

[0001] This utility model relates to the field of fragrance production technology, and in particular to an online monitoring device for fragrance thermal reaction. Background Technology

[0002] Thermally reacted flavorings refer to flavorings produced by heating two or more flavor precursors (such as reducing sugars, amino acids, etc.) under certain conditions. During the thermal reaction, the flavor precursors such as reducing sugars and amino acids undergo a series of complex reactions such as rearrangement and degradation, ultimately producing hundreds or thousands of low-molecular-weight organic compounds. These compounds work together to give the flavorings a specific aroma, such as meaty aroma. In the thermal reaction production of flavorings, accurate monitoring of the reaction process is crucial.

[0003] In traditional fragrance thermal reaction monitoring, the detection of solution concentration and pH value often relies on manual periodic sampling. This method is not only inefficient, but also cannot reflect the dynamic changes in the reaction process in real time. Since the thermal reaction process is extremely sensitive to parameters such as temperature, pressure, and solution concentration, even small fluctuations in these parameters can have a significant impact on the quality of the fragrance. Therefore, we propose an online monitoring device for fragrance thermal reactions to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies in the monitoring of thermal reactions of fragrances, where the detection of solution concentration and pH value relies on manual periodic sampling, which is not only inefficient but also unable to reflect dynamic changes in real time. Therefore, this invention proposes an online monitoring device for thermal reactions of fragrances.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An online monitoring device for the thermal reaction of flavorings includes a reaction vessel. A sealing cover is fixedly installed at the top of the reaction vessel at its opening. An inlet pipe and an exhaust pipe, which are connected to the interior of the reaction vessel, are respectively fixedly installed through the sealing cover. An outlet pipe is fixedly connected to the bottom of the reaction vessel. A jacket is fixedly fitted on the outer wall of the reaction vessel. A heating tube is circumferentially wound around the inner wall of the jacket and contacts the outer wall of the reaction vessel. A detection cylinder is fixedly installed through the top of the sealing cover and is connected to the interior of the reaction vessel. The device also includes:

[0007] The monitoring components are installed on the reaction vessel and the sealing cover to monitor changes in temperature, pressure, and solution concentration inside the reaction vessel.

[0008] The solution circulation structure is located on the sealed cover and is used in conjunction with the monitoring components to monitor the solution concentration.

[0009] In one possible design, the monitoring component includes multiple temperature sensors arranged vertically and fixedly on the outer wall of the reaction vessel, with the detection ends of each temperature sensor extending into the interior of the reaction vessel. An electronic pressure gauge is fixedly connected to the top of the exhaust pipe, and an outlet pipe is fixedly connected to the exhaust pipe, with an electric valve installed on the outlet pipe. The pressure and temperature inside the reaction vessel can be monitored in real time using the electronic pressure gauge and multiple temperature sensors.

[0010] In one possible design, the monitoring component further includes an optical sensor and a pH sensor, both of which are fixedly mounted on the detection cylinder. The detection ends of both the optical sensor and the pH sensor extend into the interior of the detection cylinder, with the pH sensor positioned above the optical sensor. An infrared liquid level sensor is fixedly mounted on the top of the detection cylinder, and an electric flow regulating valve is fixedly mounted on the detection cylinder below the optical sensor. The concentration and pH value of the solution entering the detection cylinder can be monitored through the optical sensor and the pH sensor. Simultaneously, the infrared liquid level sensor, in conjunction with the electric flow regulating valve, controls the rate at which the solution inside the detection cylinder flows back into the reaction vessel.

[0011] In one possible design, the solution circulation structure includes an outlet cylinder, which is fixedly installed through the top of the sealing cap. The outlet cylinder is connected to the detection cylinder via a connecting pipe. The bottom of the outlet cylinder extends to the bottom of the sealing cap and is fixedly connected to an outlet pipe. The bottom of the outlet pipe extends into the interior of the reaction vessel and is fixedly connected to a filter box. A one-way valve is fixedly installed at the bottom of the outlet cylinder. A piston is slidably and sealingly connected to the inner wall of the outlet cylinder. A sliding rod is fixedly connected to the end of the piston. The sliding rod slidably and sealingly extends through the top of the outlet cylinder and extends above the outlet cylinder. A moving block is fixedly connected to the top of the sliding rod. The solution in the reaction vessel is drawn out and enters the detection cylinder for detection by the up-and-down movement of the piston.

[0012] In one possible design, a bracket is fixedly mounted on the top of the sealing cap, and a stirring rod is rotatably connected to the bracket. The stirring rod extends into the interior of the reaction vessel and is fixedly connected to a straight-bladed disc turbine. A gearbox is fixedly mounted on the top of the bracket, and the output end of the gearbox is fixedly connected to the stirring rod. A motor is fixedly mounted on the top of the gearbox, and the output end of the motor is fixedly connected to the input end of the gearbox. Through the stirring rod and the straight-bladed disc turbine, the solution can be fully mixed.

[0013] In one possible design, a transmission rod is rotatably connected to one side of the support, an eccentric wheel is fixedly fitted at one end of the transmission rod, and an eccentric shaft is fixedly connected to one side of the eccentric wheel. A clearance groove is provided on the moving block, and the eccentric shaft is inserted into the clearance groove and contacts the inner wall of the clearance groove. Bevel gears are fixedly fitted on the outer walls of the transmission rod and the stirring rod inside the support. The two bevel gears mesh with each other. During the stirring process, the two bevel gears drive the eccentric wheel to rotate, thereby driving the slide bar to move up and down, continuously extracting the solution for testing.

[0014] In this application, firstly, the materials and solutions to be reacted enter the reaction vessel through the feed inlet. Then, the heating wire in the heating tube heats the reaction vessel. The motor starts and drives the stirring rod to rotate through the gearbox. The flat-bladed disc turbine on the stirring rod stirs the solution in the reaction vessel. During the stirring process, the flat-bladed disc turbine pushes the solution to make circular and axial motion, so that the solution is mixed evenly.

[0015] During the process, the detection ends of multiple temperature sensors installed on the outer wall of the reaction vessel extend into the interior of the reaction vessel. Since the temperature may vary at different locations inside the reaction vessel, multiple temperature sensors can simultaneously collect temperature data at different heights. An electronic pressure gauge is installed at the top of the exhaust pipe. The gas pressure inside the reaction vessel is transmitted to the electronic pressure gauge through the exhaust pipe. The electronic pressure gauge converts the gas pressure signal into an electrical signal and displays it. When it is necessary to release gas to regulate the gas pressure, simply open the electric valve on the exhaust pipe.

[0016] Simultaneously with the stirring rod, the stirring rod drives the transmission rod to rotate via a bevel gear. The eccentric wheel on the transmission rod rotates accordingly, and the eccentric shaft of the eccentric wheel moves within the clearance groove of the moving block, causing the sliding rod to move up and down. The sliding rod then drives the piston to move up and down within the outlet cylinder. When the piston moves upward, the solution in the reaction vessel, under the action of pressure difference, passes through the filter box, outlet pipe, and one-way valve into the outlet cylinder. When the piston moves downward, the solution in the outlet cylinder enters the detection cylinder through the connecting pipe and flows back into the reaction vessel from below the detection cylinder. The concentration and pH value of the solution entering the detection cylinder are monitored by an optical sensor and a pH sensor. The optical sensor emits light of a specific wavelength and detects the change in light intensity after passing through the solution, converting the light signal into an electrical signal. After calculation and analysis, the concentration value of the solution can be obtained. The pH sensor monitors the pH value of the solution entering the detection cylinder based on the principle of ion-selective electrode.

[0017] An infrared liquid level sensor at the top of the detection cylinder monitors the liquid level in the cylinder in real time. The infrared liquid level sensor emits infrared rays, which are reflected back from the solution surface. The liquid level is calculated based on the time difference between the emission and reception of the infrared rays. When the liquid level reaches a certain height, the infrared liquid level sensor transmits a signal to the control system. The control system then controls the electric flow regulating valve to open to a certain extent, allowing the solution in the detection cylinder to flow back into the reaction tank at a set speed, thus achieving intelligent control of the solution reflux rate.

[0018] Beneficial effects: In this utility model, the online monitoring device for the thermal reaction of fragrances obtains key parameters of temperature and pressure in the reaction vessel in real time through temperature sensors and electronic pressure gauges in the monitoring components, ensuring that the reaction process is carried out under optimal conditions. Optical sensors and pH sensors monitor the concentration of the solution entering the detection cylinder in real time online, improving the timeliness and accuracy of concentration and pH value monitoring.

[0019] In this utility model, the online monitoring device for the thermal reaction of fragrances, through the cooperation of an infrared liquid level sensor at the top of the detection cylinder and an electric flow regulating valve below, can intelligently control the speed at which the solution flows back into the reaction tank according to the liquid level of the solution in the detection cylinder, ensuring the continuity and stability of the detection process, while avoiding problems such as solution overflow or poor backflow.

[0020] In this utility model, the online monitoring device for thermal reaction of fragrances uses a solution circulation structure to extract the solution in the reaction vessel and send it into the detection cylinder for detection. This design can continuously obtain solution samples in the reaction vessel, ensuring the comprehensiveness and timeliness of solution concentration monitoring, and enabling operators to understand the dynamic changes in the solution concentration in the reaction vessel in real time.

[0021] This invention uses a monitoring component to acquire key parameters such as temperature and pressure inside the reaction vessel in real time, ensuring that the reaction proceeds under optimal conditions. Optical and pH sensors monitor the solution concentration online, improving the timeliness and accuracy of monitoring. An infrared liquid level sensor works in conjunction with an electric flow regulating valve to intelligently control the reflux rate of the solution in the detection cylinder. The solution circulation structure continuously samples and detects to ensure comprehensive and timely concentration monitoring, allowing operators to keep abreast of the solution dynamics. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of an online monitoring device for the thermal reaction of fragrances proposed in this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of a localized explosion of an online monitoring device for the thermal reaction of fragrances proposed in this utility model;

[0024] Figure 3This is a three-dimensional structural diagram of the sealing cover of an online monitoring device for the thermal reaction of fragrances proposed in this utility model;

[0025] Figure 4 This is a partial three-dimensional structural diagram of an online monitoring device for the thermal reaction of fragrances proposed in this utility model;

[0026] Figure 5 A partial cross-sectional three-dimensional structural diagram of the liquid outlet cylinder of an online monitoring device for the thermal reaction of fragrances proposed in this utility model.

[0027] In the diagram: 1. Reaction vessel; 2. Sealing cap; 3. Feed pipe; 4. Exhaust pipe; 401. Electronic pressure gauge; 402. Electric valve; 5. Discharge pipe; 6. Jacket; 7. Heating tube; 8. Temperature sensor; 9. Support; 10. Stirring rod; 11. Straight-blade disc turbine; 12. Detection cylinder; 13. Optical sensor; 14. pH sensor; 15. Infrared liquid level sensor; 16. Electric flow control valve; 17. Discharge cylinder; 18. Discharge pipe; 19. Filter box; 20. Check valve; 21. Slide rod; 22. Piston; 23. Moving block; 24. Transmission rod; 25. Bevel gear; 26. Eccentric wheel; 27. Gearbox; 28. Motor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1: Refer to Figure 1-5 A line monitoring device includes a reaction vessel 1, with a sealing cover 2 fixedly installed at its top opening to provide a closed environment for the reaction. A feed pipe 3 and an exhaust pipe 4 are fixedly installed through the sealing cover 2, both communicating with the interior of the reaction vessel 1. The feed pipe 3 is used to transport the reaction raw materials into the reaction vessel 1, while the exhaust pipe 4 is responsible for discharging the gases generated during the reaction. A discharge pipe 5 is fixedly connected to the bottom of the reaction vessel 1, through which the product can be discharged after the reaction is complete.

[0030] A jacket 6 is fixedly fitted onto the outer wall of the reaction vessel 1. A heating tube 7 is wound around the inner wall of the jacket 6 in a ring, and the heating tube 7 is in close contact with the outer wall of the reaction vessel 1. In actual operation, the heating tube 7 is energized and generates heat, which is evenly transferred to the reaction vessel 1 through the jacket 6, thereby providing the required temperature conditions for the reaction.

[0031] The monitoring component is a key part of realizing reaction monitoring. It includes multiple temperature sensors 8, arranged vertically and fixed to the outer wall of the reaction vessel 1, with their sensing ends extending into the interior of the reaction vessel 1. These sensors can monitor the temperature at different heights within the reaction vessel 1 in real time, providing a comprehensive understanding of the reaction temperature distribution. An electronic pressure gauge 401 is fixedly connected to the top of the exhaust pipe 4 to display the pressure value inside the reaction vessel 1 in real time. An outlet pipe is also fixedly connected to the exhaust pipe 4, and an electric valve 402 is installed on the outlet pipe. Based on the monitoring data from the electronic pressure gauge 401, the pressure inside the reaction vessel 1 can be adjusted by controlling the opening and closing of the electric valve 402, ensuring the reaction proceeds within a safe pressure range.

[0032] In addition, the monitoring assembly includes an optical sensor 13 and a pH sensor 14, both fixedly mounted on the detection cylinder 12 with their detection ends extending into the cylinder. The pH sensor 14 is positioned above the optical sensor 13. The optical sensor 13 emits light of a specific wavelength and detects changes in light intensity after passing through the solution, converting the light signal into an electrical signal. After calculation and analysis, the concentration value of the solution can be determined. The pH sensor 14 monitors the pH value of the solution entering the detection cylinder based on the principle of ion-selective electrode. Simultaneously, an infrared liquid level sensor 15 is installed at the top of the detection cylinder 12 to monitor the solution level within the cylinder. An electric flow regulating valve 16 is installed on the detection cylinder 12 below the optical sensor 13. By controlling the opening of this valve, the flow rate of the solution within the detection cylinder 12 can be adjusted, ensuring the accuracy of the monitoring data.

[0033] Temperature sensor 8 can be Anritsu A-231K-01-1-TC1-ASP; optical sensor 13 can be Keysight 81633B; pH sensor 14 can be Bsens130; infrared liquid level sensor 15 can be LZH-2 / TRH-3; electronic barometer 401 can be FYP-1 digital precision barometer.

[0034] The solution circulation structure works in conjunction with the monitoring components. The outlet cylinder 17 is fixedly attached to the top of the sealing cap 2 and connected to the detection cylinder 12 via a connecting pipe. The bottom of the outlet cylinder 17 extends below the sealing cap 2 and is fixedly connected to the outlet pipe 18. The bottom of the outlet pipe 18 extends into the interior of the reaction vessel 1 and its end is fixedly connected to the filter box 19. The filter box 19 is used to filter impurities in the solution, ensuring the cleanliness of the solution entering the detection cylinder 12. A one-way valve 20 is installed at the bottom of the outlet cylinder 17 to ensure that the solution can only flow in one direction. A piston 22 is slidably connected to the inner wall of the outlet cylinder 17. A sliding rod 21 is fixedly connected to the end of the piston 22. The sliding rod 21 slidably extends through the top of the outlet cylinder 17 and is fixedly connected to the moving block 23.

[0035] This application can be used in the field of flavor production technology, or in other fields applicable to this application.

[0036] Example 2: Reference Figure 3-5 An improvement upon Example 1: An online monitoring device for the thermal reaction of flavorings, applied in the field of flavoring production technology. During device operation, a stirring rod 10 is rotatably connected to a bracket 9 fixed to the top of the sealing cover 2. The stirring rod 10 extends into the reaction tank 1 and is fixedly connected to a straight-blade disc turbine 11. A gearbox 27 fixed to the top of the bracket 9 has its output end fixedly connected to the stirring rod 10, and the output end of a motor 28 is connected to the input end of the gearbox 27. After the motor 28 starts, power is transmitted to the stirring rod 10 via the gearbox 27, driving the straight-blade disc turbine 11 to rotate, stirring the solution in the reaction tank 1, making the reaction more complete and uniform.

[0037] Meanwhile, a transmission rod 24 is rotatably connected to one side of the support 9. An eccentric wheel 26 is fixedly sleeved at one end of the transmission rod 24, and an eccentric shaft is fixedly connected to one side of the eccentric wheel 26. A clearance groove is opened on the moving block 23, and the eccentric shaft is inserted into the clearance groove and contacts the inner wall of the groove. Both the transmission rod 24 and the outer wall of the stirring rod 10 are fixedly sleeved with bevel gears 25 inside the support 9, and the two bevel gears 25 mesh with each other. When the stirring rod 10 rotates, it drives the transmission rod 24 to rotate through the bevel gears 25, which in turn causes the eccentric wheel 26 to rotate. The eccentric shaft of the eccentric wheel 26 moves in the clearance groove of the moving block 23, pushing the moving block 23 to drive the slide rod 21 and the piston 22 to reciprocate in the liquid outlet cylinder 17, realizing the circulation of the solution from the reaction tank 1 through the liquid outlet pipe 18, the filter box 19, the liquid outlet cylinder 17, and the connecting pipe into the detection cylinder 12, so that the monitoring component can monitor parameters such as solution concentration in real time.

[0038] However, as is well known to those skilled in the art, the working principle and wiring method of motor 28 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0039] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for monitoring the thermal reaction of essence online, comprising a reaction tank (1), a sealing cover (2) is fixedly arranged at the top of the reaction tank (1) and is located at an opening, characterized in that, The sealing cover (2) is respectively provided with a feed pipe (3) and an exhaust pipe (4) that are connected to the inside of the reaction tank (1). The bottom of the reaction tank (1) is fixedly connected with an outlet pipe (5). The outer wall of the reaction tank (1) is fixedly fitted with a jacket (6). The inner wall of the jacket (6) is circumferentially wrapped with a heating pipe (7). The heating pipe (7) is in contact with the outer wall of the reaction tank (1). The top of the sealing cover (2) is provided with a detection cylinder (12) that is connected to the inside of the reaction tank (1). The sealing cover (2) also includes: The monitoring components are installed on the reaction vessel (1) and the sealing cover (2) to monitor the temperature, pressure and solution concentration changes inside the reaction vessel; The solution circulation structure is set on the sealing cover (2) and is used to cooperate with the monitoring component to realize solution concentration monitoring.

2. The device according to claim 1, wherein the device is characterized by, The monitoring component includes multiple temperature sensors (8), which are arranged vertically and fixedly mounted on the outer wall of the reaction vessel (1). The detection ends of the multiple temperature sensors (8) extend into the interior of the reaction vessel (1). An electronic pressure gauge (401) is fixedly connected to the top of the exhaust pipe (4). An outlet pipe is fixedly connected to the exhaust pipe (4), and an electric valve (402) is installed on the outlet pipe.

3. The device according to claim 2, wherein the device is characterized by, The monitoring assembly also includes an optical sensor (13) and a pH sensor (14). The optical sensor (13) and the pH sensor (14) are both fixedly mounted on the detection cylinder (12). The detection ends of the optical sensor (13) and the pH sensor (14) extend into the interior of the detection cylinder (12). The pH sensor (14) is located above the optical sensor (13). An infrared liquid level sensor (15) is fixedly mounted on the top of the detection cylinder (12). An electric flow regulating valve (16) is fixedly mounted on the detection cylinder (12) below the optical sensor (13).

4. The device according to claim 1, wherein the device is characterized by, The solution circulation structure includes an outlet cylinder (17), which is fixedly installed on the top of the sealing cover (2). The outlet cylinder (17) is connected to the detection cylinder (12) through a connecting pipe. The bottom of the outlet cylinder (17) extends to the bottom of the sealing cover (2) and is fixedly connected to an outlet pipe (18). The bottom of the outlet pipe (18) extends into the interior of the reaction tank (1) and is fixedly connected to a filter box (19). A one-way valve (20) is fixedly installed at the bottom of the outlet cylinder (17). A piston (22) is slidably connected to the inner wall of the outlet cylinder (17). A slide rod (21) is fixedly connected to the end of the piston (22). The slide rod (21) slidably passes through the top of the outlet cylinder (17) and extends to the top of the outlet cylinder (17). A moving block (23) is fixedly connected to the top of the slide rod (21).

5. The device according to claim 4, wherein the device is characterized by A bracket (9) is fixedly installed on the top of the sealing cover (2). A stirring rod (10) is rotatably connected to the bracket (9). The stirring rod (10) extends into the interior of the reaction vessel (1) and is fixedly connected to a straight-bladed disc turbine (11). A gearbox (27) is fixedly installed on the top of the bracket (9). The output end of the gearbox (27) is fixedly connected to the stirring rod (10). A motor (28) is fixedly installed on the top of the gearbox (27). The output end of the motor (28) is fixedly connected to the input end of the gearbox (27).

6. A device for monitoring the thermal reaction of a fragrance according to claim 5, characterized in that, A transmission rod (24) is rotatably connected to one side of the support (9). An eccentric wheel (26) is fixedly sleeved on one end of the transmission rod (24). An eccentric shaft is fixedly connected to one side of the eccentric wheel (26). A clearance groove is provided on the moving block (23). The eccentric shaft is inserted into the clearance groove and contacts the inner wall of the clearance groove. Both the outer walls of the transmission rod (24) and the stirring rod (10) are fixedly sleeved with bevel gears (25) inside the support (9). The two bevel gears (25) mesh with each other.

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