Modular chemical reactor

Abstract

The invention relates to the technical field of chemical reactors, in particular to a modular chemical reactor. Comprising a middle shell and conical shells fixedly connected with the two ends of the middle shell. The end part of the conical shell is fixedly connected with a flange; the inner walls of the left and right ends of the middle shell are connected with baffle plates; a reaction tube and a central column penetrate through the space between the two baffle plates; the left baffle disc is fixedly connected with the reaction tube and the central column, and the right baffle disc is movably and hermetically connected with the outer wall of the reaction tube, the outer wall of the central column and the inner wall of the middle shell; a left groove is formed in the left portion in the middle shell. A movable groove communicated with the left groove is formed in the right position of the inner wall of the middle shell; the length of the shell pass is changed by adjusting the distance between the two baffle plates, so that the chemical reactor can meet the reaction requirements of different products, and the application range is wide.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical reactors, and specifically to a modular chemical reactor. Background Art

[0002] Chemical reactors are the core equipment used to realize material chemical reactions in chemical production. By regulating process parameters such as temperature, pressure, material flow rate, and catalyst, raw materials are converted into target products. There are various types, including batch reactors suitable for intermittent or small-batch reactions, tubular reactors suitable for continuous and efficient production, fixed-bed reactors for gas-solid reactions, and fluidized-bed reactors that improve mass transfer efficiency through catalyst fluidization. Their design and operation directly affect production efficiency, product quality, energy consumption level, and production safety, and are the core components of chemical process technology.

[0003] The principle of a chemical reactor is that multiple fluid materials enter the tube side of the reactor after mixing, and the shell side enters a heat source or a cold source according to requirements to meet the reaction environment inside the tube side. The length of the tube side directly affects the reaction time of the reactants. The specific length setting is processed according to the reaction requirements. However, after the length of the tube side is processed, the reaction time of the tube side is fixed, making it difficult to meet the reaction requirements of different products and resulting in poor applicability.

[0004] In addition, existing chemical reactors are relatively single, do not support expansion and assembly, and have poor reaction efficiency and temperature control, resulting in poor product consistency after the reaction. Summary of the Invention

[0005] To make up for the deficiencies of the prior art, the present invention proposes a modular chemical reactor. By adjusting the distance between two baffle plates, the length of the shell side is changed, so that the chemical reactor can be applicable to the reaction requirements of different products and has a wide range of applications.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A modular chemical reactor of the present invention includes a middle shell and conical shells fixedly connected to both ends of the middle shell; a flange is fixedly connected to the end of the conical shell; baffles are connected to the inner walls of the left and right ends of the middle shell; a reaction tube and a central column pass through between the two baffles; the left baffle is fixedly connected to the reaction tube and the central column, and the right baffle is movably and sealingly connected to the outer wall of the reaction tube, the outer wall of the central column and the inner wall of the middle shell; a left groove is arranged on the left side inside the middle shell; an activity groove communicating with the left groove is arranged at the right position on the inner wall of the middle shell; an L-shaped tube is slidably and sealingly connected in the activity groove along the axial direction of the middle shell; the L-shaped tube is fixedly connected to the right baffle; a first joint communicating with the inner wall of the middle shell is arranged at the upper left position on the outer wall of the middle shell, and a second joint is arranged at the lower right position on the outer wall of the middle shell; the second joint communicates with the left groove through a second connection hole; a plurality of baffle plates are elastically slidably connected between the two baffles; the notches of adjacent baffle plates are arranged staggeredly.

[0007] Preferably, the central column is composed of a left column and a threaded column; the left hole at the right end of the left column is movably connected to the left end of the threaded column; the left column is fixedly connected to the left baffle, and the threaded column is in threaded transmission and sealing connection with the right baffle; a face gear is fixedly connected to the right end of the threaded column; the face gear meshes with a cylindrical gear; a rotating rod is movably and sealingly connected to the inner and outer walls of the right conical shell; the inner end of the rotating rod is connected to the cylindrical gear, and the outer end is connected to a handle.

[0008] Preferably, the number of the cylindrical gears is two; the rotating rod passes through the two cylindrical gears at the same time and is fixedly connected to the cylindrical gears; the two cylindrical gears are arranged close to the inner edge of the face gear at the same time; a rotating ring is rotatably connected to the end face of the upper cylindrical gear; a second spring is connected between the inner wall of the conical shell and the rotating ring; the second spring is sleeved on the outer wall of the corresponding rotating rod.

[0009] Preferably, the middle shell is composed of a left shell on the left and a right shell on the right; an annular left groove is arranged at the right end of the left shell; the first joint is connected to the left shell; the activity groove is arranged on the inner wall of the right shell; the left end of the right shell is movably and sealingly connected in the left groove; a first bolt penetrates outward through the inner wall of the left groove close to the opening; the reaction tube is formed by movably and sealingly connecting a left reaction tube on the left and a right reaction tube on the right; the left end of the left reaction tube is fixedly connected to the left baffle, and the right end of the right reaction tube is fixedly connected to the right baffle; wherein, the diameter of the reaction tube is 4-10 mm, and the material, wall thickness, quantity and length of a single tube of the reaction tube are designed according to different process systems.

[0010] Preferably, the outer diameter of the right reverse tube is smaller than that of the left reverse tube; the baffle plate is in movable sealing contact with the outer wall of the threaded column, the outer wall of the right reverse tube, and the inner wall of the right shell through an elastic sealing ring; the left end of the threaded column is rotatably connected to a rotating block; a third spring is connected between the left end of the left hole and the rotating block.

[0011] Preferably, a driving column fixedly connected to the central column is provided inside the left cone shell; an annular groove is provided at a position on the outer wall of the driving column close to the central column; a driven groove is provided on the outer wall of the annular groove away from the central column; a driven block is slidably and sealingly connected in the driven groove; a shielding plate fixedly connected to the driven block is slidably connected in the annular groove; a tension spring is connected between the driven block and the bottom of the driven groove; a driving groove is provided inside the driving column; a driving plate is slidably and sealingly connected in the driving groove; the driving plate is rotatably connected to an upward second bolt; the second bolt passes through the cone shell and is in movable sealing connection with the cone shell; the thread of the second bolt is provided in the lower half section; a liquid hole communicates between the lower inner wall of the driving groove and the left groove wall of the driven groove; the pulling forces of the plurality of tension springs are different.

[0012] Preferably, the shielding plate is fan-shaped; a plurality of the shielding plates enclose to form an annular structure; the outer edges of the plurality of shielding plates can be in contact with the inner wall of the cone shell after moving leftward.

[0013] Preferably, the similar pulling forces among the plurality of tension springs are arranged away from each other.

[0014] Preferably, the chemical reactors are connected and communicated through connectors; the leftmost chemical reactor is connected to a mixing device through a photoinitiating device, and after the fluid raw materials enter the mixing device and are mixed, they enter the chemical reactor along the photoinitiating device for reaction.

[0015] Preferably, the connector is a straight pipe or a bent pipe, and an instrument is connected in series on the connector.

[0016] The beneficial effects of the present invention are as follows: 1. By adjusting the distance between the two baffle plates, the length of the shell side is changed, so that the chemical reactor can be suitable for the reaction requirements of different products, and the application range is wide.

[0017] 2. When the threaded column rotates, the right baffle plate will move leftward or rightward, so that the length inside the shell side can be adjusted. There is no need to adjust through the flange and the cone shell, and the adjustment is more convenient and fast; after the adjustment of the shell side is completed, the handle is released, and the second spring will drive the two cylindrical gears to drive the rotating rod to move axially along the rotating rod, so that the two cylindrical gears are re-engaged with the face gear, realizing the locking of the face gear, and also locking the position of the right baffle plate, so that the spatial dimension of the shell side is more stable after locking.

[0018] 3. The present invention can change the shell-side length by moving the right shell along the left groove on the left shell, or by driving the leftward movement of the right baffle plate by rotating the rotating rod, so as to meet the adjustment requirements in different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 is a perspective view of the chemical reactor of the present invention; Figure 2 is Figure 1 an axial sectional view; Figure 3 is Figure 2 an enlarged view of part A in Figure 4 is Figure 2 an enlarged view of part B in Figure 5 is Figure 2 an enlarged view of part C in Figure 6 is Figure 2 an enlarged view of part D in Figure 7 is Figure 2 an enlarged view of part E in Figure 8 is Figure 1 a radial sectional view; Figure 9 is a perspective view of the baffle plate in the present invention; Figure 10 is Figure 9 a perspective view from another angle; Figure 11 is Figure 10 an enlarged view of part F in Figure 12 is a perspective view of the right shell in the present invention; Figure 13 is a reaction flow diagram of the chemical reactor, the photoinitiator device and the mixing device; Figure 14 is a schematic diagram of the straight pipe shape of the connecting piece in the present invention; Figure 15 is a schematic diagram of the bent pipe shape of the connecting piece in the present invention; Figure 16 is a schematic diagram of the photoinitiator device in the present invention.

[0021] In the figure: middle shell 1, left groove 11, first bolt 111, movable groove 12, L-shaped pipe 13, first joint 14, second joint 15, second connection hole 16, left shell 17, right shell 18, conical shell 2, flange 21, rotating rod 22, handle 23, connecting piece 24, retaining disc 3, reaction tube 4, left reaction tube 41, right reaction tube 42, central column 5, left column 51, threaded column 52, rotating block 521, third spring 522, left hole 53, face gear 54, cylindrical gear 55, rotating ring 56, second spring 57, baffle plate 6, notch 61, elastic sealing ring 62, driving column 7, annular groove 71, driven groove 72, driven block 73, shielding plate 74, tension spring 75, driving groove 76, driving plate 77, second bolt 78, liquid hole 79, photoinitiator device 8, mixing device 9. Detailed implementation manners

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0023] As Figures 1 to 16 shown, the present invention includes the following embodiments: Embodiment 1: A modular chemical reactor includes a middle shell 1 and a conical shell 2 fixedly connected to both ends of the middle shell 1; a flange 21 is fixedly connected to the end of the conical shell 2; retaining discs 3 are connected to the inner walls of the left and right ends of the middle shell 1; a reaction tube 4 and a central column 5 pass between the two retaining discs 3; the left retaining disc 3 is fixedly connected to the reaction tube 4 and the central column 5, and the right retaining disc 3 is movably and sealingly connected to the outer wall of the reaction tube 4, the outer wall of the central column 5 and the inner wall of the middle shell 1; a left groove 11 is provided on the left side inside the middle shell 1; an activity groove 12 communicating with the left groove 11 is provided at the right position of the inner wall of the middle shell 1; an L-shaped pipe 13 is slidably and sealingly connected in the activity groove 12 along the axial direction of the middle shell 1; the L-shaped pipe 13 is fixedly connected to the right retaining disc 3; a first joint 14 communicating with the inner wall of the middle shell 1 is provided at the upper left position of the outer wall of the middle shell 1, and a second joint 15 is provided at the lower right position of the outer wall of the middle shell 1; the second joint 15 communicates with the left groove 11 through a second connection hole 16; a plurality of baffle plates 6 are elastically slidably connected between the two retaining discs 3; the notches 61 of adjacent baffle plates 6 are arranged staggeredly.

[0024] Before putting the chemical reactor into use, first enter the inside of the conical shell 2 through one of the flanges 21, and then push or pull the right-side baffle 3 to move on the inner wall of the middle shell 1. Taking the leftward movement of the right-side baffle 3 as an example, during the leftward movement of the right-side baffle 3, the L-shaped pipe 13 will be driven to move leftward along the movable groove 12. During the leftward movement of the L-shaped pipe 13, it will be inserted into the left groove 11 for avoidance. The left end of the L-shaped pipe 13 is always connected to the left groove 11, and the right end of the L-shaped pipe 13 is connected to the position on the right side near the inner side of the middle shell 1. The left groove 11 is connected to the second joint 15 through the second connection hole 16. The second joint 15 is responsible for introducing the cold and heat source, and the first joint 14 is responsible for discharging the cold and heat source. The cold and heat source is divided into a heat source and a cold source, and is specifically selectively used according to the reaction requirements. During the leftward movement of the right-side baffle 3, it will also move relative to the reaction tube 4 and the right end of the central column 5. The right-side baffle is movably and sealingly connected to the central column 5 and the reaction tube 4. Therefore, after the right-side baffle 3 moves leftward, the space between the two baffles 3 can be guaranteed to be sealed. The space between the two baffles 3 is the shell side, and the space where the fluid flows in the reaction tube 4 is the tube side. First springs are arranged between the left end of the shell side and the baffle plate 6, between adjacent baffle plates 6, and between the rear end of the shell side and the baffle plate 6. In this way, during the leftward movement of the right-side baffle 3, multiple baffle plates 6 will approach each other and fold leftward. After the two baffles 3 approach each other, the length of the shell side will be shortened; conversely, if the baffle 3 on the right side is controlled to move rightward, the right-side baffle 3 will drive the L-shaped pipe 13 to move rightward along the movable groove 12. The right-side baffle 3 moves relative to the central column 5 and the reaction tube 4, and the distance between the two baffles 3 increases, and multiple baffle plates 6 move away from each other and unfold; after adjusting the length of the shell side, the chemical reactor can be adapted to the reaction requirements of different products, and the applicable range is wider; then the chemical reactor is put into use. During the process of the mixed fluid raw material flowing from left to right, the mixed fluid raw material will flow in from the flange 21 and the conical shell 2 at the left position. The raw material will flow into the tube side along the left end of the reaction tube 4. The cold and heat source will flow in along the second joint 15, and the second joint 15 will flow into the left groove 11 along the second connection hole 16. The cold and heat source in the left groove 11 will flow into the right position of the shell side along the L-shaped pipe 13. Since multiple baffle plates 6 are arranged in the shell side and the notches 61 on adjacent baffle plates 6 are staggered, the cold and heat source at the right position of the shell side will pass through the outer wall of the reaction tube 4 back and forth and cross multiple baffle plates 6, so that the cold and heat source will flow from right to left under disturbance and finally flow out along the first joint 14. The cold and heat source will transfer cold or heat to the raw material in the reaction tube 4, so that the raw material can react at the corresponding temperature, meeting the reaction requirements of the raw material in the reaction tube 4. After the raw material in the reaction tube 4 reacts, it will flow into the conical shell 2 on the right along the right end of the reaction tube 4 and finally flow out along the flange 21 at the right position; by adjusting the distance between the two baffles 3, the length of the shell side is changed, and thus the chemical reactor can be adapted to the reaction requirements of different products, and the applicable range is wide.

[0025] Embodiment 2: The central column 5 is composed of a left column 51 and a threaded column 52; a left hole 53 at the right end of the left column 51 is movably connected to the left end of the threaded column 52; the left column 51 is fixedly connected to the left-leaning baffle 3, and the threaded column 52 is in threaded driving and sealing connection with the right-leaning baffle 3; an end face gear 54 is fixedly connected to the right end of the threaded column 52; the end face gear 54 meshes with a cylindrical gear 55; a rotating rod 22 is movably and sealingly connected to the inner and outer walls of the right-leaning conical shell 2; the inner end of the rotating rod 22 is connected to the cylindrical gear 55, and the outer end is connected to a handle 23.

[0026] In this embodiment, the number of the cylindrical gears 55 is two; the rotating rod 22 passes through the two cylindrical gears 55 at the same time and is fixedly connected to the cylindrical gears 55; the two cylindrical gears 55 are arranged close to the inner edge of the end face gear 54 at the same time; a rotating ring 56 is rotatably connected to the end face of the upper cylindrical gear 55; a second spring 57 is connected between the inner wall of the conical shell 2 and the rotating ring 56; the second spring 57 is sleeved on the outer wall of the corresponding rotating rod 22.

[0027] After the connections of the two flanges 21 at the ends of the chemical reactor are completed, when it is necessary to adjust the length of the shell side again, there is no need to adjust the right-side retaining disc 3 through the flange 21 and the inside of the conical shell 2. Just press or pull the handle 23. In the initial state, since the end face gear 54 meshes with the two cylindrical gears 55 at the same time, and the two cylindrical gears 55 are connected together by the rotating rod 22, the two cylindrical gears cannot be meshed and driven by the end face gear 54 at the same time. Thus, the end face gear 54 belongs to a locked rotation. As the handle 23 is pressed or pulled, the handle 23 will drive the rotating rod 22 to move downward. During the downward movement of the rotating rod 22, it will drive the two cylindrical gears 55 to move downward. During the downward movement of the upper cylindrical gear 55, it will drive the rotating ring 56 to move downward. During the downward movement of the rotating ring 56, it will overcome the pulling force of the second spring 57. After the upper cylindrical gear 55 moves downward, it will move away from the meshing position on the end face gear 54. After the lower cylindrical gear 55 moves downward, it does not disengage from the meshing with the end face gear 54. In this way, the meshing state of the double cylindrical gears 55 and the end face gear 54 is switched to the meshing state of a single cylindrical gear 55 and the end face gear 54, realizing the unlocking of the end face gear 54. When the handle 23 is pulled to drive the rotating rod 22 to move upward, during the upward movement of the rotating rod 22, it will drive the two cylindrical gears 55 to move upward. During the upward movement of the upper cylindrical gear 55, it will drive the rotating ring 56 to move upward and overcome the elastic force of the second spring 57. After the lower cylindrical gear 55 moves upward, it will disengage from the meshing with the end face gear 54. After the upper cylindrical gear 55 moves upward, it will maintain the meshing with the end face gear 54. In this way, the unlocking of the end face gear 54 is realized. Therefore, the two cylindrical gears 55 in the initial state can lock the end face gear 54, and the cylindrical gear 55 in the enabled state can unlock the end face gear 54. In the state where one of the cylindrical gears 55 meshes with the end face gear 54, rotating the handle 23 drives the rotating rod 22 to rotate. The rotating ring 56 is rotatably connected to the upper cylindrical gear 55, so it does not affect the rotation of the upper cylindrical gear 55. During the rotation of the rotating rod 22, it will rotate through one of the cylindrical gears 55 and the end face gear 54. During the rotation of the end face gear 54, it will drive the threaded column 52 to rotate. The threaded column 52 is in threaded transmission and sealed connection with the right-side retaining disc 3. Specifically, a spiral first spiral groove can be provided on the threaded column 52, and a first square block (not shown in the figure) is movably and sealedly connected along the spiral direction on the first spiral groove. The square block is fixedly connected to the retaining disc 3 to achieve threaded transmission while being able to seal. When the threaded column 52 rotates, it will cause the right-side retaining disc 3 to move left or right, so that the length inside the shell side is adjusted, without the need to adjust through the flange 21 and the conical shell 2, and the adjustment is more convenient and fast;After the adjustment of the shell side is completed, release the handle 23, and the second spring 57 will drive the two cylindrical gears 55 to drive the rotating rod 22 to move axially along the rotating rod 22, so that the two cylindrical gears 55 are re-engaged with the end face gear 54, realizing the locking of the end face gear 54, and also locking the position of the right-side baffle 3, thereby making the shell side space size more stable after locking.;

[0028] Embodiment 3: The middle shell 1 is composed of a left shell 17 on the left and a right shell 18 on the right; an annular left groove 11 is provided at the right end of the left shell 17; the first joint 14 is connected to the left shell 17; the movable groove 12 is provided on the inner wall of the right shell 18; the left end of the right shell 18 is movably and sealingly connected in the left groove 11; a first bolt 111 is provided on the outer wall of the left groove 11 near the opening and penetrates outwards; the reaction tube 4 is composed of a left reaction tube 41 on the left and a right reaction tube 42 on the right which are movably and sealingly connected to each other; the left end of the left reaction tube 41 is fixedly connected to the left baffle 3, and the right end of the right reaction tube 42 is fixedly connected to the right baffle 3.

[0029] In this embodiment, the outer diameter of the right reaction tube 42 is smaller than the outer diameter of the left reaction tube 41; the baffle plate 6 is in movable and sealing contact with the outer wall of the threaded column 52, the outer wall of the right reaction tube 42, and the inner wall of the right shell 18 through an elastic sealing ring 62; the left end of the threaded column 52 is rotatably connected to a rotating block 521; a third spring 522 is connected between the left end of the left hole 53 and the rotating block 521.

[0030] In the case where the shell side length needs to be adjusted, the method of adjusting the shell side length inside while keeping the outer dimensions unchanged can be adopted, so as to be applicable to the adjustment of multiple chemical reactors that have been connected in series; or the method of changing the outer dimensions while adjusting the shell side length inside can be adopted. The change in the outer dimensions causes changes in parameters such as the installation length, and specific adjustments are made according to the usage requirements. Taking the adjustment of the outer length as an example, loosen the first bolt 111 so that the first bolt 111 disengages from the contact with the outer wall of the right shell 18, unlocking the right shell 18 from the left shell 17. After the right shell 18 is unlocked, control the left or right movement of the right shell 18. During the leftward movement of the right shell 18, the rotating rod 22 and the cylindrical gear 55 will be driven to move leftward. The cylindrical gear 55 will push the end face gear 54 to move leftward. During the leftward movement of the end face gear 54, the threaded column 52 will be driven to move leftward. During the leftward movement of the threaded column 52, the rotating block 521 will move leftward along the left hole 53 against the elastic force of the third spring 522. During the leftward movement of the threaded column 52, the right-side baffle 3 will be driven to move leftward. During the leftward movement of the right-side baffle 3, the right return pipe 42 will be driven to move leftward. The left end of the right return pipe 42 can move inside the right end of the left return pipe 41. Therefore, the entire reaction pipe 4 will also be shortened. During the leftward movement of the right shell 18, it will slide along the left groove 11, making the length of the entire chemical reactor shorter; while during the rightward movement of the right shell 18, it will move rightward along the left groove 11, making the length of the entire chemical reactor longer. The right shell 18 will drive the rotating rod 22 to move rightward. The rotating rod 22 will drive the cylindrical gear 55 to move rightward. The third spring 522 will push the rotating block 521 and the threaded column 52 to move rightward. The right-side baffle 3 will move rightward, and the reaction pipe 4 will also expand. After the adjustment of the outer length of the chemical reactor is completed, tighten the first bolt 111. The first bolt 111 abuts against the outer wall of the right shell 18, locking the right shell 18 and the left shell 17; when the right shell 18 and the left shell 17 are locked, rotating the rotating rod 22 can change the length of the shell side while keeping the outer shape of the chemical reactor unchanged; in this embodiment, during the left and right movement of the right-side baffle 3, the baffle plate 6 between the two baffles 3 will move accordingly. The baffle plate 6 is in contact and sealed with the outer walls of the threaded column 52, the right return pipe 42, and the left return pipe 41 through the elastic sealing ring 62. In this way, it can not only meet the movement of the baffle plate 6 but also separate the internal space of the shell side to the greatest extent to extend the flow path of the cold and heat sources inside the shell side; this embodiment can change the shell side length by the movement of the right shell 18 along the left groove 11 on the left shell 17, and can also change the shell side length by driving the right-side baffle 3 to move leftward by rotating the rotating rod 22, so as to meet the adjustment requirements in different situations.

[0031] Embodiment 4: A driving column 7 fixedly connected to the central column 5 is provided inside the left conical shell 2; an annular groove 71 is provided on the outer wall of the driving column 7 near the central column 5; a driven groove 72 is provided on the outer wall of the annular groove 71 away from the central column 5; a driven block 73 is slidably and sealingly connected in the driven groove 72; a shielding plate 74 fixedly connected to the driven block 73 is slidably connected in the annular groove 71; the driven block 73 is connected to the bottom of the driven groove 72 by a tension spring 75; a driving groove 76 is provided inside the driving column 7; a driving plate 77 is slidably and sealingly connected in the driving groove 76; the driving plate 77 is rotatably connected upward to a second bolt 78; the second bolt 78 passes through the conical shell 2 and is movably and sealingly connected to the conical shell 2; the thread of the second bolt 78 is provided in the lower half; a liquid hole 79 communicates between the lower inner wall of the driving groove 76 and the left groove wall 11 of the driven groove 72; the pulling forces of the plurality of tension springs 75 are different.

[0032] In this embodiment, the shielding plate 74 is fan-shaped; a plurality of the shielding plates 74 enclose to form an annular structure; after the outer edges of the plurality of shielding plates 74 are shifted leftward, they can contact the inner wall of the conical shell 2.

[0033] In the case where the number of reaction tubes 4 needs to be changed, the second bolt 78 is turned. The upper half of the second bolt 78 is movably and sealingly connected to the conical shell 2, and the lower half of the second bolt 78 is provided with a thread. Therefore, when the second bolt 78 rotates, it will drive the driving plate 77 to slide in the driving groove 76. The driving plate 77 divides the driving groove 76 into an upper cavity and a lower cavity. The upper cavity is communicated with the inner space of the conical shell 2, and the lower cavity is communicated with the driven groove 72 through the liquid hole 79. Therefore, when the driving plate 77 moves downward, it will squeeze the liquid medium in the lower cavity. The liquid medium in the lower cavity is pressed and flows into the driven groove 72 along the liquid hole 79, thereby pushing the liquid in the driven groove 72 to squeeze the driven block 73. In this way, the driven block 73 overcomes the pulling force of the tension spring 75 and moves away from the bottom of the driven groove 72. The driven block 73 will drive the shielding plate 74 to contact the left baffle 3. The pulling forces of the plurality of tension springs 75 are different. Therefore, in the case where the pulling force of the tension spring 75 is small, the corresponding driven block 73 will drive the shielding plate 74 to be closer to the baffle 3. In the case where the pulling force of the tension spring 75 is large, the corresponding driven block 73 will drive the shielding plate 74 to be farther away from the baffle 3. In this way, the plurality of shielding plates 74 are staggered in the left-right direction, and the plurality of shielding plates 74 will successively approach the baffle 3. As the second bolt 78 is continuously turned, the plurality of shielding plates 74 will successively contact the baffle 3, realizing the successive shielding of the left end of the reaction tube 4 on the baffle 3. In the case where the space in the lower cavity is smaller, the more the number of reaction tubes 4 on the baffle 3 is blocked. In the case where the space in the lower cavity is larger, the smaller the number of reaction tubes 4 on the baffle 3 is blocked. In the case where the space in the lower cavity is the largest, all the driven blocks 73 will retract to the deepest position of the driven groove 72, and all the shielding plates 74 will move to the left limit position. All the shielding plates 74 will form an annular structure, and the outer edge of the shielding plate 74 can shield the inner wall of the corresponding conical shell 2 to realize the termination of the reaction in the chemical reactor; in this embodiment, by turning the second bolt 78 to drive the driving plate 77 to move up and down in the driving groove 76, the number of shielding of the left end of the reaction tube 4 on the baffle 3 by the shielding plate 74 is changed, so that the number of enabled reaction tubes 4 in the chemical reactor is adjusted, and the applicable range of the chemical reactor is improved; in this embodiment, the plurality of shielding plates 74 are staggered in the left-right direction, and the raw material can flow over the plurality of shielding plates 74.

[0034] Embodiment 5: The similar pulling forces among the plurality of tension springs 75 are arranged away from each other.

[0035] Since the similar pulling forces among the plurality of tension springs 75 are arranged away from each other, after the driven blocks 73 with similar pulling forces drive the shielding plates 74 to contact the baffle 3, the plurality of reaction tubes 4 can be scattered and blocked, so that the enabled reaction tubes 4 in the shell side are more dispersed, thus improving the energy transfer effect of the cold and heat sources in the shell side on the raw materials in the reaction tubes 4 and improving the reaction efficiency.

[0036] Example 6: The chemical reactors are connected and communicated through the connecting piece 24; the leftmost chemical reactor is connected to the mixing device 9 through the photoinitiating device 8. After the fluid raw materials enter the mixing device 9 for mixing, they enter the chemical reactor along the photoinitiating device 8 for reaction.

[0037] In this embodiment, the connecting piece 24 is a straight pipe or a bent pipe, and instruments (not shown in the figure) are connected in series on the connecting piece 24.

[0038] Taking three chemical reactors as an example, the raw materials, namely medium 1, medium 2, medium 3, and medium 4, are pumped into the mixing device 9 under the action of a pump for mixing. The specific amount of raw materials can be increased or decreased according to requirements. The raw materials in the mixing device 9 will enter the photoinitiating device 8. The photoinitiating device 8 mainly consists of a pipe fitting made of crystal material and reinforced by a steel sleeve. The wavelength of the light fluctuates between 380 nm and 450 nm, depending on the material situation. The light irradiation points can also be along the direction of the pipeline, with two or four initiating points arranged on both sides; the raw materials passing through the photoinitiating device 8 will enter the first chemical reactor. In the first chemical reactor, mainly in the initial stage of the reaction, temperature increase operation may be required in the initial stage of the reaction. Steam or hot water enters the shell side of the first chemical reactor. After the raw materials are photoinitiated, the reaction of the materials starts, and the reaction rate of the materials is controlled by the flow rate of the heat source. The raw materials will enter the second chemical reactor after reacting in the first chemical reactor. This is the stable stage of the reaction, and steam or hot water is used to control the reaction temperature. The operation of the second chemical reactor is similar to that of the first chemical reactor, aiming to improve the reaction yield. Then it enters the third chemical reactor. In order to further improve the reaction rate, the material is cooled by a refrigerant. Finally, qualified products are obtained; at the end of the reaction, an on-line detection device may be used. If the detection is unqualified, the material will not enter the subsequent process of the qualified product and will return to before the first chemical reactor or the second chemical reactor. Specifically, according to the detection results, it is selected to enter the first chemical reactor or the second chemical reactor and react again; the connecting piece 24 between multiple chemical reactors can be a straight pipe or a bent pipe, and the direction of the material can be adjusted arbitrarily according to space requirements. In addition, some instruments such as temperature, pressure, and flow rate can be added to the connecting piece 24; the number of chemical reactors can be customized according to requirements; and the specific installation can be horizontal or vertical, specifically according to the specific gravity of the material and the on-site space requirements, generally horizontal installation is selected; if it is vertically installed and the material density is relatively light, it is necessary to consider that the material inlet may be at the top and the outlet at the bottom; the positions, sizes, and numbers of the heat source inlets and outlets of the reactor, including the cold source inlets and outlets, need to be specifically arranged after calculating the heat balance of the material reaction; the connecting piece 24 is connected with a safety valve or a rupture disk port and a detection port; After the processing of each component of the chemical reactor, they are spliced together. The conical shell 2 is in the shape of a tapered sleeve with a variable diameter. The diameter of the reaction tube 4 is 4 - 10 mm. Of course, other specifications of diameters can also be selected, which are specifically set according to the reaction requirements. As for the material, wall thickness, quantity, and the length of a single tube, they can be designed according to different process systems. For example, the wall thickness of the reaction tube 4 needs to be calculated comprehensively based on the reaction pressure and corrosiveness. The quantity of the reaction tubes 4 * the cross-sectional area of a single tube ≥ 3 * the cross-sectional area of the inlet and outlet tubes of the reactor. The selection of the tube diameter mainly depends on the pressure during the reaction. When the pressure is high, thick-walled and large-diameter tubes are selected; when the pressure is low, thin-walled and small-diameter tubes are selected. Currently, the wall thickness mainly fluctuates in the range of 0.3 mm - 2 mm and is custom-designed. In addition, the wall thickness and tube diameter are also related to the viscosity, thermal conductivity, and production capacity per unit time of the product. The main materials of the reaction tube 4 include 304, 316L, 32168, titanium, Hastelloy C276, etc. For the middle shell 1 and the conical shell 2, only the design pressure of the refrigerant or heat medium and the medium conditions need to be considered. Generally, carbon steel is selected as the material, and the wall thickness and pressure-bearing grade are based on the design pressure of the refrigerant or heat medium. The setting of the baffle plate 6 improves the heat exchange uniformity of the reaction tubes 4. The reaction tubes 4 can be calculated based on the heat balance and an external fin structure can be added. The fin pitch and height are specifically calculated according to the heat dissipation amount. The design of the fins cannot affect the movement of the baffle plate 6. The fin materials can be selected from aluminum, 304, and 316L. The reaction rate optimization method is based on the online spectral analysis data, and the unqualified materials are returned through the flow control valve. This embodiment supports rapid expansion through modular design to adapt to diverse production requirements. The small tube diameter + micro-fin structure improves the reaction efficiency. The dynamic baffle plate 6 design improves the heat exchange effect. The closed-loop feedback system reduces raw material waste and improves the product consistency. The connection method between chemical reactors can arbitrarily adjust the material direction, and in combination with the sensor data, the flow direction is adjusted in real time to optimize the reaction path, which is relatively novel in the prior art.

[0039] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the attached Figure 1 orientation or positional relationship shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0040] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A modular chemical reactor, comprising a middle shell and conical shells fixedly connected to both ends of the middle shell; a flange is fixedly connected to the end of the conical shell; a baffle plate is connected to the inner walls of the left and right ends of the middle shell; a reaction tube and a central column pass through between the two baffle plates; and it is characterized in that: The left baffle is fixedly connected to the reaction tube and the central column, and the right baffle is movably and sealingly connected to the outer wall of the reaction tube, the outer wall of the central column and the inner wall of the middle shell; a left groove is arranged on the left side inside the middle shell; an activity groove communicating with the left groove is arranged at the right position on the inner wall of the middle shell; an L-shaped tube is slidably and sealingly connected in the activity groove in the axial direction of the middle shell; the L-shaped tube is fixedly connected to the right baffle; a first joint communicating with the inner wall of the middle shell is arranged at the upper left position on the outer wall of the middle shell, and a second joint is arranged at the lower right position on the outer wall of the middle shell; the second joint communicates with the left groove through a second connection hole; a plurality of baffle plates are elastically and slidably connected between the two baffles; the notches of adjacent baffle plates are arranged staggeredly.

2. The modular chemical reactor according to claim 1, wherein: The central column is composed of a left column and a threaded column; the left hole at the right end of the left column is movably connected to the left end of the threaded column; the left column is fixedly connected to the left baffle, and the threaded column is in threaded transmission and sealing connection with the right baffle; a face gear is fixedly connected to the right end of the threaded column; the face gear meshes with a cylindrical gear; a rotating rod is movably and sealingly connected to the inner and outer walls of the right cone shell; the inner end of the rotating rod is connected to the cylindrical gear, and the outer end is connected to a handle.

3. A modular chemical reactor according to claim 2, characterized in that: The number of the cylindrical gears is two; the rotating rod passes through the two cylindrical gears at the same time and is fixedly connected to the cylindrical gears; the two cylindrical gears are arranged close to the inner edge of the face gear at the same time; a rotating ring is rotatably connected to the end face of the upper cylindrical gear; a second spring is connected between the inner wall of the cone shell and the rotating ring; the second spring is sleeved on the outer wall of the corresponding rotating rod.

4. A modular chemical reactor according to claim 2, characterized in that: The middle shell is composed of a left shell on the left and a right shell on the right; an annular left groove is arranged at the right end of the left shell; the first joint is connected to the left shell; the activity groove is arranged on the inner wall of the right shell; the left end of the right shell is movably and sealingly connected in the left groove; a first bolt is arranged on the inner wall of the left groove close to the opening and penetrates outwards; the reaction tube is composed of a left reaction tube on the left and a right reaction tube on the right which are movably and sealingly connected to each other; the left end of the left reaction tube is fixedly connected to the left baffle, and the right end of the right reaction tube is fixedly connected to the right baffle; wherein, the diameter of the reaction tube is 4-10 mm, and the material, wall thickness, quantity and single-tube length of the reaction tube are designed according to different process systems.

5. A modular chemical reactor according to claim 4, characterized in that: The outer diameter of the right reaction tube is smaller than that of the left reaction tube; the baffle plate is in movable and sealing contact with the outer wall of the threaded column, the outer wall of the right reaction tube and the inner wall of the right shell through an elastic sealing ring; a rotating block is rotatably connected to the left end of the threaded column; a third spring is connected between the left end of the left hole and the rotating block.

6. A modular chemical reactor according to claim 1, characterized in that: On the inner side of the left conical shell, there is a driving column fixedly connected to the central column; an annular groove is arranged at a position on the outer wall of the driving column close to the central column; a driven groove is arranged on the outer wall of the annular groove away from the central column; a driven block is slidably and sealingly connected in the driven groove; a shielding plate fixedly connected to the driven block is slidably connected in the annular groove; the driven block is connected to the bottom of the driven groove through a tension spring; a driving groove is arranged inside the driving column; a driving plate is slidably and sealingly connected in the driving groove; the driving plate is rotatably connected upward to a second bolt; the second bolt passes through the conical shell and is movably and sealingly connected to the conical shell; the thread of the second bolt is arranged in the lower half; the lower inner wall of the driving groove is communicated with the left groove wall of the driven groove through a liquid hole; the pulling forces of the plurality of tension springs are different.

7. The modular chemical reactor according to claim 6, characterized in that: The shielding plate is fan-shaped; a plurality of the shielding plates enclose to form an annular structure; after the plurality of shielding plates move leftward, they can contact the inner wall of the conical shell.

8. The modular chemical reactor according to claim 6, characterized in that: The similar pulling forces among the plurality of tension springs are arranged away from each other.

9. The modular chemical reactor according to claim 1, wherein: The chemical reactors are connected and communicated through connecting pieces; the leftmost chemical reactor is connected to a mixing device through a photoinitiating device, and after the fluid raw materials enter the mixing device for mixing, they enter the chemical reactor along the photoinitiating device for reaction.

10. A modular chemical reactor according to claim 9, characterized in that: The connecting piece is a straight pipe or a bent pipe, and an instrument is connected in series on the connecting piece.

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