A device and method for monitoring reaction temperature of di-tert-butyl diisopropylbenzene peroxide

Abstract

The present invention proposes a device and method for monitoring the reaction temperature of diisopropyl ditert-butyl peroxide, which relates to the field of temperature measurement technology, and includes an insulation reactor body, a working chamber is provided in the insulation reactor body, and an isolation plate is slidably installed in the working chamber, and the isolation plate can separate the working chamber into a pressure measuring chamber and a reaction chamber arranged up and down. The present invention proposes a device and method for monitoring the reaction temperature of diisopropyl ditert-butyl peroxide, which can adjust the isolation plate to perform corresponding lifting and lowering movements in the working chamber according to the temperature change in the reaction chamber through the insulation reactor body, isolation plate, detection tube, exhaust pipe, temperature sensing drive mechanism and temperature sensing sealing structure, thereby changing the space size in the reaction chamber, thereby changing the air pressure in the reaction chamber, so that the temperature and air pressure in the reaction chamber are always maintained in a suitable range, which can ensure the thoroughness of the reaction and the yield and purity of the product.

Description

Technical Field

[0001] The invention relates to the technical field of temperature measurement, and in particular to a device and method for monitoring the reaction temperature of di-tert-butyl diisopropyl peroxide. Background Art

[0002] Di(tert-butylperoxyisopropyl)benzene (BIBP) is an organic peroxide crosslinking agent with a chemical formula of C20H34O4 and a molecular weight of 338.49. Synthesis is usually used in the preparation of di(tert-butylperoxyisopropyl)benzene.

[0003] In the synthesis and preparation of di-tert-butyl diisopropylbenzene peroxide, the reaction temperature is usually 50°C, the reaction time is 30 minutes, the mass ratio of TBHP / acetic anhydride is 1 / 2, the molar ratio of TBHP / Diol is 2.2 / 1, the vacuum flash drying temperature is 50°C, the pressure is -0.095 MPa, and the time is 1 hour. During the reaction process, the reaction is usually carried out in a relatively closed reactor to ensure that the raw materials can react fully, the purity of the product, and the safety of the reaction; for example, when the reaction temperature is too low, the activity of the free radicals in the molecule is low, which will cause the reaction rate to slow down and may cause incomplete reaction, thereby affecting the purity and yield of the final product; when the temperature rises, the stability of the peroxide bond in BIBP becomes weaker and it is easy to decompose when heated, which will cause the product yield and purity to decrease. At high temperatures, the decomposition products produced by the thermal decomposition of BIBP may be mixed in the BIBP product, making the appearance color of the BIBP product slightly yellowish, affecting the quality of the product. Excessive temperature may also lead to an increase in side reactions, such as tert-butyl peroxide. The volatilization and loss of tert-butyl hydroperoxide (TBHP) will affect the yield and purity of BIBP. The decomposition temperature of tert-butyl hydroperoxide (TBHP) will start to decompose at about 50°C. As the temperature rises, the decomposition rate will become faster. If the temperature rises to above 70°C, the decomposition reaction will intensify, generating a large amount of gas and heat, which may lead to safety risks. Therefore, during the synthesis and preparation of diisopropylbenzene di-tert-butyl peroxide, its reaction temperature will be detected and processed. When the temperature changes, a temperature control device is usually installed to control the reaction temperature. However, after the temperature in the reactor is controlled by the temperature control device, the space in the reactor remains relatively unchanged, which will cause the gas pressure in the reactor to change. The change in gas pressure may affect the reaction efficiency, product yield, safety, etc. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a device and method for monitoring the reaction temperature of di-tert-butyl diisopropyl peroxide.

[0005] The present invention provides a reaction temperature monitoring device for di-tert-butyl diisopropylbenzene peroxide, comprising a heat-insulating reactor body, a working chamber is provided in the heat-insulating reactor body, an isolation plate is slidably installed in the working chamber, the isolation plate can separate the working chamber into a pressure measuring chamber and a reaction chamber arranged in an upper and lower manner, and an exhaust pipe connected to the pressure measuring chamber is installed on the heat-insulating reactor body; A detection tube is fixedly installed on the main body of the thermal insulation reactor, one end of which passes through the top of the main body of the thermal insulation reactor, the isolation plate and extends into the reaction chamber, the isolation plate can be slidably mounted on the detection tube, and a plurality of temperature sensing drive mechanisms are installed on the detection tube, and the temperature sensing drive mechanisms can drive the isolation plate to slide on the detection tube; A temperature-sensing sealing structure is installed in the detection tube, and the temperature-sensing sealing structure can divide the detection tube into a plurality of relatively independent temperature-sensing spaces, and a temperature-sensing driving mechanism is installed in each of the temperature-sensing spaces; When the temperature rises, the temperature-sensing sealing structure opens, the temperature-sensing driving mechanism is affected by the temperature, the temperature-sensing driving mechanism moves in the temperature-sensing space, and the moving temperature-sensing driving mechanism drives the isolation plate to slide on the detection tube.

[0006] Preferably, the temperature-sensing sealing structure includes a sealing plate, a temperature-sensing plate, a memory metal sheet and a strain gauge; the sealing plate is fixedly mounted on the inner wall of the detection tube, a vent hole is penetrated through the detection tube, the temperature-sensing plate is fixedly mounted in the vent hole, both ends of the memory metal sheet are slidably mounted on one side of the temperature-sensing plate, and the memory metal sheet can seal the vent hole, the strain gauge is bonded to one side of the memory metal sheet, and both ends of the strain gauge are connected to the circuit.

[0007] Preferably, the temperature sensing drive mechanism comprises a first gear, a second gear, a lifting assembly and a reset assembly; the inner wall of the isolation plate is provided with a plurality of linearly arranged teeth, the outer circumference of the detection tube is provided with a rotation groove, the first gear is rotatably installed in the rotation groove, the first gear is meshed with the teeth on the inner wall of the isolation plate, the second gear is rotatably installed in the detection tube, and the second gear is meshed with the first gear; The lifting assembly is used to drive the second gear to rotate in the detection tube; The reset assembly is used to drive the second gear to slide and reset in the detection tube.

[0008] Preferably, the lifting assembly comprises a lifting cylinder and a temperature-sensitive memory metal piece; the outer periphery of the lifting cylinder is meshed with the second gear, and the two ends of the temperature-sensitive memory metal piece are respectively fixedly connected to the lifting cylinder and the blocking plate.

[0009] Preferably, the reset assembly includes a constant force spring; a rotating groove is provided at the bottom of the lifting cylinder, the constant force spring is installed in the rotating groove, the inner ring end of the constant force spring is fixedly installed in the rotating groove, and the outer ring end of the constant force spring is fixedly connected to the sealing plate.

[0010] Preferably, a heat-conducting rod is fixedly installed in the detection tube, and the heat-conducting rod passes through a plurality of lifting cylinders and a plurality of temperature-sensing plates in sequence; A fixing plate is fixedly installed in the detection tube, a sealing plug is slidably mounted on the heat-conducting rod, a pressure relief port is opened on the fixing plate, and the sealing plug can seal the pressure relief port. An auxiliary frame is fixedly installed in the detection tube, and a pressure spring is mounted on the heat-conducting rod, and both ends of the pressure spring are respectively against the sealing plug and the auxiliary frame.

[0011] Preferably, a feed pipe communicating with the reaction chamber is provided on one side of the thermal insulation reactor body, a measuring pipe communicating with the reaction chamber is also installed on one side of the thermal insulation reactor body, and a discharge pipe communicating with the reaction chamber is installed at the bottom of the thermal insulation reactor body; A stirring blade is rotatably installed in the reaction chamber, and a stirring motor for driving the stirring blade to rotate is fixedly installed at the bottom of the thermal insulation reactor body.

[0012] A monitoring method for a reaction temperature monitoring device of di-tert-butyl diisopropylbenzene peroxide, the specific monitoring method is as follows: Step 1: Install No. 1 thermometer on the heat conducting rod, and install No. 2 thermometer and air pressure sensor in the measuring tube; Step 2: During the reaction process, record the values ​​of the No. 1 thermometer and the No. 2 thermometer, compare the values ​​of the No. 1 thermometer and the No. 2 thermometer, and simultaneously detect the current changes passing through each strain gauge, and determine the reaction temperature by the changes in each current; Step 3: According to the current passing through each strain gauge, the movement position of the isolation plate is determined, thereby determining the space in the reaction chamber, and then according to the value of the air pressure sensor and the measured temperature, calculating whether the above-mentioned measured temperature is accurate.

[0013] Preferably, when the memory metal sheet is affected by the temperature in the reaction chamber, the memory metal sheet is heated and deformed, and the memory metal sheet will deform synchronously with the strain gauge.

[0014] The device and method for monitoring the reaction temperature of di-tert-butyl diisopropyl peroxide proposed by the present invention have the following beneficial effects: through the provision of an insulating reactor body, an isolation plate, a detection tube, an exhaust pipe, a temperature-sensing drive mechanism and a temperature-sensing plugging structure, the isolation plate can be adjusted to perform corresponding lifting movements in the working chamber according to the temperature change in the reaction chamber, thereby changing the spatial conductor in the reaction chamber, thereby changing the air pressure in the reaction chamber, so that the temperature and air pressure in the reaction chamber are always maintained in an appropriate range, which can ensure that the reaction is thorough and the yield and purity of the product are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a reaction temperature monitoring device for di-tert-butyl diisopropylbenzene peroxide proposed by the present invention; Figure 2 A cross-sectional view of a reaction temperature monitoring device for di-tert-butyl diisopropyl peroxide proposed by the present invention; Figure 3 A cross-sectional view of the contact position between the isolation plate and the detection tube in a reaction temperature monitoring device for di-tert-butyl diisopropyl peroxide proposed by the present invention; Figure 4 A top view of a strain gauge on a temperature sensing plate in a device for monitoring reaction temperature of di-tert-butyl diisopropylbenzene peroxide proposed by the present invention; Figure 5 A partial cross-sectional view of a strain gauge on a temperature sensing plate in a device for monitoring the reaction temperature of di-tert-butyl diisopropylbenzene peroxide proposed by the present invention; Figure 6 A partial cross-sectional view of a detection tube in a device for monitoring reaction temperature of di-tert-butyl diisopropylbenzene peroxide proposed by the present invention; Figure 7 This is a schematic diagram of the structure of a memory metal sheet and a strain gauge in a reaction temperature monitoring device for di-tert-butyl diisopropylbenzene peroxide proposed by the present invention; Figure 8 A cross-sectional view of a constant force spring in a lifting cylinder in a reaction temperature monitoring device for di-tert-butyl diisopropylbenzene peroxide proposed by the present invention; Fig. 9 A reaction temperature monitoring device for di-tert-butyl peroxide diisopropylbenzene proposed by the present invention Figure 2 Enlarged view of point A in the middle.

[0016] In the figure: 1. Insulated reactor body; 2. Isolation plate; 3. Detection tube; 4. Exhaust pipe; 5. Sealing plate; 6. Temperature sensing plate; 7. Memory metal sheet; 8. Strain gauge; 9. Gear No. 1; 10. Gear No. 2; 11. Lifting cylinder; 12. Temperature-sensing memory metal piece; 13. Constant force spring; 14. Stirring motor; 15. Heat-conducting rod; 16. Fixed plate; 17. Sealing plug; 18. Auxiliary frame; 19. Pressure spring; 20. Feed pipe; 21. Measuring pipe; 22. Discharge pipe; 23. Stirring blade. DETAILED DESCRIPTION

[0017] Reference Figure 1-Figure 9 The present invention provides a reaction temperature monitoring device for di-tert-butyl peroxide diisopropylbenzene, comprising a heat-insulating reactor body 1, wherein a working chamber is provided in the heat-insulating reactor body 1, and the heat-insulating reactor body 1 can ensure that the temperature in the working chamber affects the temperature of the outside, and an isolation plate 2 is slidably installed in the I-shaped chamber, and the isolation plate 2 has a heat-insulating property, and the isolation plate 2 can separate the working chamber into a pressure measuring chamber and a reaction chamber arranged up and down, and di-tert-butyl peroxide diisopropylbenzene is reacted and synthesized in the reaction chamber, and an exhaust pipe 4 connected to the pressure measuring chamber is installed on the heat-insulating reactor body 1, and when the synthesis reaction of di-tert-butyl peroxide diisopropylbenzene is carried out, the exhaust pipe 4 in communication with the pressure measuring chamber is discharged from the reaction chamber. When the temperature in the reaction chamber changes, when the temperature rises, the air pressure in the reaction chamber becomes higher, and the isolation plate 2 can move upward, so that the space of the reaction chamber becomes larger, so that the atmospheric pressure reaches a suitable air pressure, and when the air pressure becomes smaller, the temperature in the reaction chamber will also decrease accordingly. Under the adiabatic condition, according to Charles' law P / T=C (constant), P is pressure, T is temperature, that is, pressure is proportional to absolute temperature. By changing the air pressure in the reaction chamber to change the temperature in the reaction chamber, the temperature in the reaction chamber can be accurately monitored, and the temperature and pressure in the reaction chamber can be adjusted according to actual conditions to ensure that the reaction conditions are within a suitable range.

[0018] like Figure 2As shown in the figure, a detection tube 3 is fixedly installed on the insulation reactor body 1, and one end of the detection tube 3 passes through the top of the insulation reactor body 1, the isolation plate 2 and extends into the reaction chamber in sequence. The isolation plate 2 can be slidably mounted on the detection tube 3, and a plurality of temperature-sensing driving mechanisms are installed on the detection tube 3, and the temperature-sensing driving mechanism can drive the isolation plate 2 to slide on the detection tube 3; a temperature-sensing plugging structure is installed in the detection tube 3, and the temperature-sensing plugging structure can divide the detection tube 3 into a plurality of relatively independent temperature-sensing spaces, and a temperature-sensing driving mechanism is installed in each temperature-sensing space; when the temperature rises, the temperature-sensing plugging structure opens, and the temperature-sensing driving mechanism is affected by the temperature, and the temperature-sensing driving mechanism moves in the temperature-sensing space. The moving temperature-sensing driving mechanism drives the isolation plate 2 to slide on the detection tube 3. In specific operation, the detection tube 3 is divided into a plurality of temperature-sensing spaces arranged at intervals. When the temperature in the reaction chamber changes, the temperature-sensing sealing structure opens or closes the opening of the temperature-sensing space at the corresponding position, and the gas in the reaction chamber enters the temperature-sensing space. The temperature-sensing driving mechanism performs a lifting movement in the temperature-sensing space according to the temperature. During the lifting movement, the isolation plate 2 can be driven to perform a lifting movement on the detection tube 3, thereby changing the pressure in the reaction chamber. When the pressure changes, the temperature in the reaction chamber will also decrease, which can ensure the reaction of diisopropyl di-tert-butyl peroxide.

[0019] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in the figure, the temperature-sensing plugging structure includes a plugging plate 5, a temperature-sensing plate 6, a memory metal sheet 7 and a strain gauge 8; the plugging plate 5 is fixedly installed on the inner wall of the detection tube 3, and a vent hole is opened on the detection tube 3. The temperature-sensing plate 6 is fixedly installed in the vent hole. Both ends of the memory metal sheet 7 are slidably installed on one side of the temperature-sensing plate 6, and the memory metal sheet 7 can plug the vent hole. The strain gauge 8 is bonded to one side of the memory metal sheet 7, and both ends of the strain gauge 8 are connected to the circuit. Assuming that the temperature in the reaction chamber is 50°C, when the temperature in the reaction chamber rises, the memory metal sheet 7 is affected by the temperature change and bends and deforms. When the memory metal sheet 7 is deformed, the vent is opened, and the high-temperature gas in the reaction chamber enters the corresponding temperature-sensing space. The entering high-temperature gas heats the temperature-sensing drive mechanism, so that the temperature-sensing drive mechanism drives the isolation plate 2 to move up and down. In actual situations, the temperature required for the memory metal sheet 7 at the bottom of each temperature-sensing space to deform due to heat gradually increases from bottom to top. When the strain gauge 8 is bent, its cross-section will change, and the current passing through it will also change. The temperature of the memory metal sheet 7 is calculated according to the deformation state of the strain gauge 8. The working principle of the strain gauge 8 is similar to that of a strain sensor.

[0020] like Figure 2 , Figure 3and Figure 6 As shown in the figure, the temperature sensing drive mechanism includes a No. 1 gear 9, a No. 2 gear 10, a lifting assembly and a reset assembly; the inner wall of the isolation plate 2 is provided with a plurality of linearly arranged teeth, the outer periphery of the detection tube 3 is provided with a rotating groove, and the contact position between the isolation plate 2 and the detection tube 3 is sealed to ensure the independence between the pressure measuring chamber and the reaction chamber. At the same time, the diameter of the No. 1 gear 9 is the same as the inner diameter of the rotating groove to ensure the sealing and reduce the flow of air through the gap. The No. 1 gear 9 is rotatably installed in the rotating groove, and the No. 1 gear 9 is meshed with the teeth of the inner wall of the isolation plate 2. The No. 2 gear 10 is rotatably installed in the detection tube 3, and the No. 2 gear 10 is meshed with the No. 1 gear. No. 1 gear 9 is meshed; in actual conditions, when the memory metal sheet 7 at the corresponding position is deformed, the gas in the reaction chamber enters the corresponding temperature-sensing space, and the lifting component is affected by the temperature and moves up and down in the temperature-sensing space. The lifting component is used to drive the No. 2 gear 10 to rotate in the detection tube 3. When the lifting component moves up and down, it will drive the No. 2 gear 10 and the No. 1 gear 9 to rotate, so that the isolation plate 2 moves up and down in the working chamber, thereby changing the spatial size of the reaction chamber, and the reset component is used to drive the No. 2 gear 10 to slide and reset in the detection tube 3; it should be noted that the isolation plate 2 is meshed with at least two No. 1 gears 9 at the same time.

[0021] like Figure 2 , Figure 3 and Figure 6 As shown in the figure, the lifting assembly includes a lifting cylinder 11 and a temperature-sensitive memory metal part 12; the outer periphery of the lifting cylinder 11 is meshed with the second gear 10, and the two ends of the temperature-sensitive memory metal part 12 are fixedly connected to the lifting cylinder 11 and the sealing plate 5 respectively. In the temperature sensing space of the gas, the temperature-sensitive memory metal part 12 is affected by the temperature. As the temperature changes, the deformation of the temperature-sensitive memory metal part 12 also changes with the temperature, driving the lifting cylinder 11 to follow the movement. When the lifting cylinder 11 is lifted and lowered, it can drive the second gear 10 to rotate, and then the second gear 10 drives the first gear 9 to rotate, and then the first gear 9 drives the isolation plate 2 to lift and lower.

[0022] like Figure 3 , Figure 6 and Figure 8 As shown in the figure, the reset component includes a constant force spring 13; a rotating groove is provided at the bottom of the lifting cylinder 11, and the constant force spring 13 is installed in the rotating groove, the inner ring end of the constant force spring 13 is fixedly installed in the rotating groove, and the outer ring end of the constant force spring 13 is fixedly connected to the blocking plate 5. In actual conditions, the constant force spring 13 works to pull the lifting cylinder 11 with a constant force. When the temperature-sensitive memory metal part 12 pulls the lifting cylinder 11 to rise, the reaction force always remains consistent. When the temperature of the temperature-sensitive memory metal part 12 decreases, the temperature-sensitive memory metal part 12 gradually returns to its original state. At the same time, under the pulling action of the constant force spring 13, the lifting cylinder 11 can be stably lowered.

[0023] like Figure 1 , Figure 2 and Fig. 9 As shown in the figure, a heat-conducting rod 15 is fixedly installed in the detection tube 3, and the heat-conducting rod 15 passes through multiple lifting cylinders 11 and multiple temperature-sensing plates 6 in sequence; a fixed plate 16 is fixedly installed in the detection tube 3, and a sealing plug 17 is slidably mounted on the heat-conducting rod 15, and a pressure relief port is opened on the fixed plate 16, and the sealing plug 17 can block the pressure relief port, and an auxiliary frame 18 is fixedly installed in the detection tube 3, and a pressure spring 19 is mounted on the heat-conducting rod 15, and the two ends of the pressure spring 19 are respectively against the sealing plug 17 and the auxiliary frame 18, and the heat-conducting rod 15 can directly contact the gas in the reaction chamber, and a temperature measuring instrument is installed at the top of the heat-conducting rod 15 to monitor the stability in the reaction chamber. In actual conditions, during the reaction, the temperature in the reaction chamber is As the temperature rises, the surface of the heat-conducting rod 15 may be oxidized and adhere to some substances, affecting the heat-sensing effect. Therefore, the heat-conducting rod 15 is arranged in sections in each temperature-sensing space. Every time the gas enters a temperature-sensing space, the surface of the heat-conducting rod 15 is in a state of not being oxidized or adhered, so that the actual temperature in the reaction chamber can be felt more directly, which can make the temperature monitoring more accurate. In addition, when the temperature and air pressure in the reaction chamber are too high, the air pressure will push the sealing plug 17 to move upward to open the pressure relief port on the fixed plate 16, and release the internal pressure. The top end of the detection tube 3 is connected to the pressure relief exhaust gas treatment device, which plays the role of pressure relief and exhaust gas treatment, making the temperature monitoring structure more accurate.

[0024] like Figure 1 and Figure 2 As shown in the figure, a feed pipe 20 connected to the reaction chamber is provided on one side of the insulated reactor body 1 for injecting raw materials into the reaction chamber. A measuring tube 21 connected to the reaction chamber is also installed on one side of the insulated reactor body 1 to facilitate the installation of an air pressure sensor and a No. 2 temperature meter. A discharge pipe 22 connected to the reaction chamber is installed at the bottom of the insulated reactor body 1 for discharging materials.

[0025] like Figure 2 As shown in the figure, a stirring blade 23 is rotatably installed in the reaction chamber, and a stirring motor 14 for driving the stirring blade 23 to rotate is fixedly installed at the bottom of the insulation reactor body 1. The stirring motor 14 drives the stirring blade 23 to rotate, so that the reaction raw materials can overlap, mix and react, making the reaction more thorough.

[0026] The specific detection methods are as follows: Step 1: Install a No. 1 thermometer on the heat conducting rod 15, and install a No. 2 thermometer and an air pressure sensor in the measuring tube 21; Step 2: During the reaction process, record the value of the first thermometer and the value of the second thermometer, compare the value of the first thermometer with the value of the second thermometer, and detect the current change through each strain gauge 8 at the same time, and judge the reaction temperature according to the change of each current; Step 3: According to the current passing through each strain gauge 8, the movement position of the isolation plate 2 is determined, thereby determining the space in the reaction chamber, and then according to the value of the air pressure sensor and the measured temperature, calculating whether the above-mentioned measured temperature is accurate.

[0027] When the memory metal sheet 7 is affected by the temperature in the reaction chamber, the memory metal sheet 7 is heated and deformed, and the memory metal sheet 7 will cause the strain gauge 8 to deform synchronously.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reaction temperature monitoring device for di-tert-butyl peroxide diisopropylbenzene, characterized in that: The invention comprises a heat-insulating reactor body (1), wherein a working chamber is provided in the heat-insulating reactor body (1), wherein an isolation plate (2) is slidably mounted in the working chamber, wherein the isolation plate (2) is capable of dividing the working chamber into a pressure measuring chamber and a reaction chamber arranged in an upper and lower manner, and wherein an exhaust pipe (4) connected to the pressure measuring chamber is mounted on the heat-insulating reactor body (1); A detection tube (3) is fixedly mounted on the thermal insulation reactor body (1); one end of the detection tube (3) sequentially passes through the top of the thermal insulation reactor body (1), the isolation plate (2) and extends into the reaction chamber; the isolation plate (2) can be slidably mounted on the detection tube (3); a plurality of temperature sensing drive mechanisms are mounted on the detection tube (3); the temperature sensing drive mechanisms can drive the isolation plate (2) to slide on the detection tube (3); A temperature-sensing sealing structure is installed in the detection tube (3), and the temperature-sensing sealing structure can divide the detection tube (3) into a plurality of relatively independent temperature-sensing spaces, and a temperature-sensing driving mechanism is installed in each of the temperature-sensing spaces; When the temperature rises, the temperature-sensing sealing structure opens, the temperature-sensing driving mechanism is affected by the temperature, the temperature-sensing driving mechanism moves in the temperature-sensing space, and the moving temperature-sensing driving mechanism drives the isolation plate (2) to slide on the detection tube (3).

2. A reaction temperature monitoring device for di-tert-butyl diisopropyl peroxide according to claim 1, characterized in that: The temperature-sensing sealing structure comprises a sealing plate (5), a temperature-sensing plate (6), a memory metal sheet (7) and a strain gauge (8); the sealing plate (5) is fixedly mounted on the inner wall of the detection tube (3); a vent hole is provided through the detection tube (3); the temperature-sensing plate (6) is fixedly mounted in the vent hole; both ends of the memory metal sheet (7) are slidably mounted on one side of the temperature-sensing plate (6); the memory metal sheet (7) is capable of sealing the vent hole; the strain gauge (8) is bonded to one side of the memory metal sheet (7); and both ends of the strain gauge (8) are connected to a circuit.

3. A reaction temperature monitoring device for di-tert-butyl diisopropyl peroxide according to claim 1, characterized in that: The temperature sensing drive mechanism comprises a first gear (9), a second gear (10), a lifting assembly and a reset assembly; the inner wall of the isolation plate (2) is provided with a plurality of linearly arranged teeth, the outer circumference of the detection tube (3) is provided with a rotation groove, the first gear (9) is rotatably mounted in the rotation groove, the first gear (9) meshes with the teeth on the inner wall of the isolation plate (2), the second gear (10) is rotatably mounted in the detection tube (3), and the second gear (10) meshes with the first gear (9); The lifting assembly is used to drive the second gear (10) to rotate in the detection tube (3); The reset assembly is used to drive the second gear (10) to slide and reset in the detection tube (3).

4. A reaction temperature monitoring device for di-tert-butyl diisopropyl peroxide according to claim 3, characterized in that: The lifting assembly comprises a lifting cylinder (11) and a temperature-sensitive memory metal part (12); the outer periphery of the lifting cylinder (11) is meshed with a second gear (10), and the two ends of the temperature-sensitive memory metal part (12) are respectively fixedly connected to the lifting cylinder (11) and the blocking plate (5).

5. A device and method for monitoring reaction temperature of di-tert-butyl diisopropyl peroxide according to claim 3, characterized in that: The reset assembly comprises a constant force spring (13); a rotation groove is provided at the bottom of the lifting cylinder (11), the constant force spring (13) is installed in the rotation groove, the inner ring end of the constant force spring (13) is fixedly installed in the rotation groove, and the outer ring end of the constant force spring (13) is fixedly connected to the blocking plate (5).

6. A reaction temperature monitoring device for di-tert-butyl diisopropyl peroxide according to claim 1, characterized in that: A heat-conducting rod (15) is fixedly installed in the detection tube (3), and the heat-conducting rod (15) passes through the plurality of lifting cylinders (11) and the plurality of temperature-sensing plates (6) in sequence; A fixing plate (16) is fixedly installed in the detection tube (3), a sealing plug (17) is slidably mounted on the heat-conducting rod (15), a pressure relief port is provided on the fixing plate (16), and the sealing plug (17) is capable of sealing the pressure relief port, an auxiliary frame (18) is fixedly installed in the detection tube (3), and a pressure spring (19) is mounted on the heat-conducting rod (15), and two ends of the pressure spring (19) are respectively in contact with the sealing plug (17) and the auxiliary frame (18).

7. A reaction temperature monitoring device for di-tert-butyl diisopropyl peroxide according to claim 1, characterized in that: A feed pipe (20) communicating with the reaction chamber is provided on one side of the thermal insulation reactor body (1); a measuring pipe (21) communicating with the reaction chamber is also installed on one side of the thermal insulation reactor body (1); and a discharge pipe (22) communicating with the reaction chamber is installed at the bottom of the thermal insulation reactor body (1); A stirring blade (23) is rotatably mounted in the reaction chamber, and a stirring motor (14) for driving the stirring blade (23) to rotate is fixedly mounted at the bottom of the heat-insulating reaction kettle body (1).

8. A monitoring method for a reaction temperature monitoring device for di-tert-butyl diisopropylbenzene peroxide, according to a reaction temperature monitoring device for di-tert-butyl diisopropylbenzene peroxide according to any one of claims 1 to 7, characterized in that: The specific detection methods are as follows: Step 1: Install a No. 1 thermometer on the heat conducting rod (15), and install a No. 2 thermometer and an air pressure sensor in the measuring tube (21); Step 2: During the reaction process, record the value of the first thermometer and the value of the second thermometer, compare the value of the first thermometer with the value of the second thermometer, and simultaneously detect the change of the current passing through each strain gauge (8), and determine the reaction temperature according to the change of each current; Step 3: According to the current passing through each strain gauge (8), the movement position of the isolation plate (2) is determined, thereby determining the space in the reaction chamber, and then according to the value of the air pressure sensor and the measured temperature, calculating whether the above-mentioned measured temperature is accurate.

9. The monitoring method of a reaction temperature monitoring device of di-tert-butyl diisopropyl peroxide according to claim 8, characterized in that: When the memory metal sheet (7) senses the influence of the temperature in the reaction chamber, the memory metal sheet (7) is heated and deformed, and the memory metal sheet (7) causes the strain gauge (8) to deform synchronously.

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