A multi-point oscillation mixing device for chemical reagent production and a production process thereof

Abstract

The present application relates to the technical field of continuous flow reaction, and discloses a multi-point oscillation mixing device for chemical reagent production and a production process thereof, comprising: a reaction tube for continuously passing through mixing of chemical reagents; a plurality of side tubes arranged along the reaction tube; an oscillator arranged in the side tube and blocking the chemical reagents inside; a piston cylinder, the side tubes are connected with the piston cylinder through transmission pipelines, the transmission pipelines are filled with transmission liquid; a main piston reciprocatingly moving in the piston cylinder to make the oscillator in each side tube oscillate through the transmission liquid; and a driver driving the main piston to reciprocate. The present application utilizes the reciprocating movement of the main piston in the piston cylinder to transmit the reciprocating action to the multiple oscillators through the transmission pipelines and the transmission liquid, promotes the multi-point oscillation mixing of the chemical reagents in the reaction tube, and significantly improves the oscillation mixing effect of the chemical reagents to ensure the mixing reaction quality.

Description

Technical Field

[0001] This invention relates to the field of continuous flow reaction technology, and more specifically to a multi-point oscillating mixing device and its production process for the production of chemical reagents. Background Technology

[0002] A continuous flow tubular reactor is a type of reactor with a significant length-to-diameter ratio and a core tubular structure. The core consists of reaction tubing and auxiliary systems, with pipe diameters ranging from a few millimeters in experimental applications to tens of centimeters in industrial applications. Connection methods include welding, flange connections, and threaded connections. Its working principle is based on a plug flow model, where materials move in a propulsive manner within the tubes. The reactant concentration varies continuously along the tube length, allowing it to be adapted to specific chemical reaction pathways to improve conversion rates and target product yields. Continuous flow tubular reactors offer advantages such as continuous production, high efficiency, low cost, stable product quality, and small footprint. They are currently widely used in petrochemical applications such as hydrocarbon cracking and reforming, fine chemical applications such as the production of organic chemicals and pharmaceutical intermediates, and materials science applications such as the synthesis of high-performance polymers and nanomaterials.

[0003] Continuous flow reactors, based on their structural characteristics, mainly include: straight-tube reactors, which consist of smooth straight tubes, with materials flowing horizontally along the length of the tubes. Radial mixing relies on molecular diffusion and turbulent diffusion. The straight tubes are often bent to make efficient use of the three-dimensional space, depending on the site environment; coiled-tube reactors, which use spiral coils; shell-and-tube reactors, which consist of multiple parallel small tubes integrated into a shell-side heat exchange mechanism, with reactants flowing inside the tubes and heat exchange media flowing outside, combining large-scale processing capacity with high-efficiency heat exchange performance; and microchannel reactors, which employ a micro-pipeline structure, increasing the specific surface area through extremely small channel dimensions to enhance heat transfer and achieve efficient mixing.

[0004] The mixing effect of a continuous flow tubular reactor directly determines its reaction performance, product quality, process safety, and economy. The reactor's core advantages, such as continuous operation, precise temperature control, and controllable residence time, rely entirely on uniform mixing of materials. Only when reactant molecules are in full contact can the reaction proceed according to the designed reaction kinetics; otherwise, significant efficiency losses will occur. For example, in fast reactions, when the mixing rate is lower than the reaction rate, local reactions occur before the materials are uniformly mixed, leading to a significant decrease in reactant conversion. In multiphase reactions, poor mixing increases the mass transfer resistance at the phase interface, limiting the overall reaction rate. In series reactions, uneven mixing can cause local concentration anomalies, leading to over-reaction or incomplete reaction, ultimately reducing the selectivity of the target product. In some reactions, uneven mixing can promote side reactions, generating a large number of byproducts and impurities, increasing the difficulty and cost of subsequent separation and purification, and directly affecting product purity and quality. Poor mixing can also cause excessively high local reactant concentrations and heat accumulation, leading to sudden temperature rises and secondary risks.

[0005] The patents CN221016084U (continuous flow reactor with oscillating mixing and multi-point oscillating mixing), CN220940651U (continuous flow reactor and multi-directional vibrating continuous flow reactor) all employ multiple vibration mechanisms at the upstream and downstream ends of the reactor to transmit vibrations to the internal liquid, thereby causing the liquid inside the reactor body to vibrate and promoting improved mixing. However, these prior art technologies have the following shortcomings: the multiple vibration mechanisms, each with a vibration element, are independently configured; vibrations are mainly provided from the reactor edge, and the vibrations are transmitted through the liquid to the reactor interior, resulting in a relatively small improvement in the mixing effect of the liquid inside the reactor. It is difficult to directly promote the vibration of the liquid inside the reactor, especially in reactors with long tube lengths, where the liquid in the middle section of the tube is almost unaffected. Specifically, in the tubular reactors and microchannel reactors mentioned above, the vibration-promoting mixing effect on the liquid inside the tubes is weak. Summary of the Invention

[0006] The purpose of this invention is to solve at least one of the problems in the prior art and to provide a multi-point oscillating mixing device and its production process for the production of chemical reagents.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A multi-point oscillating mixing device for the production of chemical reagents, comprising:

[0009] A reaction tube, used for the continuous passing and mixing of chemical reagents;

[0010] Several side tubes are arranged along the reaction tube;

[0011] A oscillator, containing chemical reagents disposed inside the side tube and sealed inside it;

[0012] The piston cylinder and the side tubes are all connected to the piston cylinder through transmission pipes, and the transmission pipes are filled with transmission fluid.

[0013] The main piston reciprocates within the piston cylinder, causing the oscillators in each side tube to oscillate via the transmission fluid.

[0014] The driver drives the main piston to reciprocate.

[0015] Furthermore, the side tube is connected to the corner of the reaction tube and is integrally connected with the reaction tube to form a T-shaped tube, and the side tube corresponds to the upstream section of the reaction tube.

[0016] Furthermore, a jacket is provided on the outside of the T-shaped tube, and a heat-conducting medium flows between the jacket and the T-shaped tube; an annular heat-insulating flange is provided on the outside of the side tube opening to block the heat-conducting medium; a partition is provided between the jacket and the T-shaped tube; the partition includes an arc-shaped plate and two straight plates that are perpendicularly connected to both ends of the arc-shaped plate; the arc-shaped plate is located on the outside of the upstream section of the reaction tube; the straight plates are symmetrical on both sides of the side tube; and there is a gap between the straight plates and the heat-insulating flange.

[0017] Furthermore, the transmission pipe is connected to the outside of the heat insulation flange and corresponds to the side pipe. A heat insulation piston is provided on the inside of the heat insulation flange, and transmission fluid is provided on both sides of the heat insulation piston. The heat insulation piston includes a heat insulation column and piston bodies connected to both ends of the heat insulation column. The piston bodies at both ends of the heat insulation column are slidably and sealingly connected to the side pipe and the transmission pipe, respectively.

[0018] Furthermore, the oscillator is a flexible diaphragm.

[0019] Furthermore, the oscillator includes a first welded bellows and an oscillating piston. The inner end and outer end of the first welded bellows are respectively connected to a first fixing ring and a first sealing plate. The first fixing ring is connected to the inner side of the inner end of the side tube. The inner side of the oscillating piston is connected to the outer side of the first sealing plate, and its outer side is in contact with the transmission fluid.

[0020] Furthermore, a second sealing plate is connected to the inner side of the first sealing plate, a second welded corrugated pipe is connected to the second sealing plate, a second fixing ring is connected to the second welding corrugated pipe, the second fixing ring is connected to the inner side of the upstream section of the reaction pipe, and the second welding corrugated pipe is located inside the corner of the reaction pipe; the side wall of the second welding corrugated pipe is provided with several perforations.

[0021] Furthermore, the first and second sealing plates reciprocate with the oscillating piston, impacting the chemical reagent; the first and second welded bellows extend and retract with the oscillating piston, and adjacent discs on the welded bellows squeeze and impact the chemical reagent.

[0022] Furthermore, a rotating drum is rotatably installed on the inner side of the upstream section of the reaction tube, and a stirring blade is connected to the first end of the rotating drum; a spiral rod is connected to the second sealing plate, and the spiral rod passes through the center of the second end of the rotating drum and meshes with the rotating drum.

[0023] This invention also provides the following technical solutions:

[0024] A manufacturing process for a multi-point oscillating mixing device for the production of chemical reagents includes the following steps: chemical reagents are continuously pressurized and passed through a reaction tube and mixed within the reaction tube; a driver drives a main piston to reciprocate; the main piston, through a transmission fluid, causes oscillators in several side tubes to reciprocate, thereby promoting multi-point oscillating mixing of chemical reagents within the reaction tube.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] This invention utilizes the reciprocating movement of the main piston within the piston cylinder to transmit the reciprocating motion to multiple oscillators via transmission pipes and transmission fluid, promoting multi-point oscillation and mixing of chemical reagents within the reaction tube; the oscillators directly act on the chemical reagents at multiple locations within the reaction tube, significantly improving the oscillation and mixing effect of the chemical reagents and ensuring the quality of the mixing reaction;

[0027] The present invention places the oscillator inside the side tube, which is connected to the corner of the reaction tube to form a T-shaped tube with the reaction tube; the reaction temperature of the reaction tube is controlled by the jacket and the heat transfer medium, and a unique partition structure is used to form a bent U-shaped channel on the outside of the side tube to heat the transmission fluid close to the reaction tube and the chemical reagents inside, so as to avoid the oscillator and its transmission mechanism from affecting the internal temperature of the reaction tube.

[0028] This invention utilizes a heat-insulating flange to seal the external port between the side pipe and the jacket, and uses a heat-insulating piston with a heat-insulating column and a double piston body to achieve separation and heat insulation of the transmission fluid. This not only does not affect the transmission of the transmission fluid, but also achieves temperature difference separation of the transmission fluid. The temperature of the transmission fluid near the reaction pipe side is the same as the temperature of the reaction pipe due to heat transfer from the jacket, while the temperature of the side away from the reaction pipe side is lower. Furthermore, it optimizes the sealing effect of the side pipe, and the heat-insulating column corresponds to the flange to avoid contact between the transmission fluid and the flange, thus preventing transmission fluid leakage.

[0029] This invention uses a flexible diaphragm to receive the vibration of the transmission fluid. The flexible diaphragm can elastically deform into a bowl shape, generating oscillations in all directions on the chemical reagents inside the reaction tube, promoting the full and thorough mixing and reaction of the chemical reagents.

[0030] In high-temperature environments, this invention uses a welded bellows with a sealing plate and a fixing ring at both ends to replace the flexible diaphragm as an oscillator, which makes up for the shortcomings of the flexible diaphragm in that it cannot withstand high temperatures and corrosive chemical reagents. The welded bellows can not only ensure the sealing effect, but also generate oscillation impact on the chemical reagents by the reciprocating movement of the sealing plate, thereby promoting and improving the mixing reaction effect of the chemical reagents.

[0031] This invention utilizes the spatial characteristics of setting a side tube and an oscillator at the corner of the reaction tube. A second welded corrugated tube is set inside the corner of the reaction tube, which expands and contracts with the first welded corrugated tube. The second welded corrugated tube has perforations, which play a role in distributing and changing the flow direction of chemical reagents. The double-sealed plate structure oscillates and impacts the chemical reagents on both sides of the corner of the reaction tube. During the expansion and contraction of the welded corrugated tube, adjacent welded discs can continuously squeeze, oscillate and impact the chemical reagents, and introduce chemical reagents, thereby enhancing the oscillation and mixing effect.

[0032] This invention utilizes a spiral rod that reciprocates along with a sealing plate and engages with a rotating drum. The reciprocating movement of the spiral rod causes the rotating drum, which has stirring blades, to rotate, and the stirring action of the stirring blades further enhances the mixing effect. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention.

[0034] Figure 2 This is a schematic diagram of the flexible diaphragm solution of the present invention.

[0035] Figure 3 This is a schematic diagram of the insulation of the reaction tube and side tube of the present invention.

[0036] Figure 4 This is a schematic diagram of the partition structure of the present invention.

[0037] Figure 5 This is a schematic diagram of the transmission fluid heat insulation of the present invention.

[0038] Figure 6 This is a schematic diagram of the heat-insulating piston of the present invention.

[0039] Figure 7 This is a schematic diagram of the external structure of the present invention.

[0040] Figure 8 This is a schematic cross-sectional view of the welded corrugated pipe scheme of the present invention.

[0041] Figure 9 This is a three-dimensional cross-sectional view of the welded corrugated pipe solution of the present invention.

[0042] Figure 10 This is a schematic diagram illustrating the impact of disc compression on chemical reagents according to the present invention.

[0043] Figure 11 This is a first-view three-dimensional structural diagram of the welded corrugated pipe solution of the present invention.

[0044] Figure 12 This is a second-view internal three-dimensional structural diagram of the welded corrugated pipe solution of the present invention.

[0045] Figure 13 This is a schematic diagram of the external structure of the reaction tube and side tube of the present invention.

[0046] In the diagram: 1. Reaction tube; 2. Side tube; 3. Flexible diaphragm; 4. Transmission pipe; 5. Piston cylinder; 6. Main piston; 7. Actuator; 8. Jacket; 9. Insulated flange; 10. Baffle plate; 11. Insulated piston; 12. First welded bellows; 13. Oscillating piston; 14. First fixing ring; 15. First sealing plate; 16. External connecting rod; 17. Liquid guide hole; 18. Second welded bellows; 19. Second fixing ring; 20. Second sealing plate; 21. Internal connecting rod; 22. Perforation; 23. Spacer strip; 24. Support column; 25. Helical rod; 26. Rotary cylinder; 27. Stirring blade; 28. First cross; 29. ​​Prism; 30. Second cross; 101. Arc plate; 102. Straight plate; 111. Insulated column; 112. Piston body. Detailed Implementation

[0047] The present invention will now be described in further detail. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention; that is, the described embodiments are merely some, not all, of the embodiments of the present invention. Example 1

[0048] Please see Figure 1 and Figure 2 A multi-point oscillating mixing device for the production of chemical reagents, comprising a reaction tube 1, several side tubes 2, an oscillator, a transmission pipe 4, a piston cylinder 5, a main piston 6, and a driver 7.

[0049] The reaction tube 1 is used to continuously pass chemical reagents through for mixing; several side tubes 2 are arranged along the reaction tube 1, and the side tubes 2 are connected to the inside of the reaction tube 1.

[0050] The oscillator is placed inside the side tube 2 and the chemical reagent inside is sealed. In this embodiment, the oscillator is a flexible diaphragm 3.

[0051] The side tubes 2 are all connected to the piston cylinder 5 via transmission pipes 4, which are filled with transmission fluid. The main piston 6 reciprocates within the piston cylinder 5, causing the oscillators within each side tube 2 to oscillate via the transmission fluid. The actuator 7 drives the main piston 6 to reciprocate; the actuator 7 is a hydraulic cylinder and can drive the oscillators within multiple side tubes 2. It is understood that in some other embodiments, an electric cylinder can be used instead of a hydraulic cylinder.

[0052] The production process of a multi-point oscillation mixing device for chemical reagent production includes the following steps: chemical reagents are continuously pressurized and passed through reaction tube 1 and mixed in reaction tube 1; driver 7 drives main piston 6 to move back and forth; main piston 6 causes oscillators in several side tubes 2 to move back and forth through transmission fluid, thereby promoting multi-point oscillation mixing of chemical reagents in reaction tube 1.

[0053] The reciprocating movement of the main piston 6 causes the piston cylinder 5 to periodically draw in and squeeze the transmission fluid. The transmission fluid moves within the transmission pipe 4. When the transmission fluid moves towards the piston cylinder 5, the chemical reagents in the reaction tube 1 squeeze the flexible diaphragm 3, causing the center of the flexible diaphragm 3 to deform outwards towards the side pipe 2. When the transmission fluid exits the piston cylinder 5, it squeezes the flexible diaphragm 3 again, causing it to move inwards towards the chemical reagents and impact them, causing the chemical reagents to oscillate and promoting mixing. By increasing the reciprocating frequency of the main piston 6, the flexible diaphragm 3 undergoes high-frequency reciprocating deformation, which enhances the oscillation effect and distance of the chemical reagents. The flexible diaphragm 3 directly acts on the chemical reagents at multiple locations within the reaction tube 1, significantly improving the oscillation and mixing effect of the chemical reagents and ensuring the quality of the chemical reagent mixing reaction. Example 2

[0054] The mixing and reaction of chemical reagents in reaction tube 1 often requires specific temperature conditions to promote mixing efficiency and reaction effect. However, the direct contact between the external low-temperature transmission fluid and the flexible diaphragm 3 can cause the temperature of the chemical reagents near the side tube 2 to drop. To avoid the temperature drop of the chemical reagents and its impact on the mixing reaction when the chemical reagents are directly subjected to an oscillation effect in reaction tube 1, this embodiment refers to the appendix... Figure 3 and attached Figure 4 Side tube 2 is connected to the corner of reaction tube 1 and is integrally connected with reaction tube 1 to form a T-shaped tube. Side tube 2 corresponds to the upstream section of reaction tube 1.

[0055] A jacket 8 is provided on the outside of the T-shaped tube, and a heat-conducting medium flows between the jacket 8 and the T-shaped tube; an annular heat-insulating flange 9 is provided on the outside of the side tube 2 to seal the heat-conducting medium; a partition 10 is provided between the jacket 8 and the T-shaped tube; the partition 10 includes an arc plate 101 and two straight plates 102 that are perpendicularly connected to both ends of the arc plate 101 respectively; the arc plate 101 is located on the outside of the upstream section of the reaction tube 1; the straight plates 102 are symmetrical on both sides of the side tube 2; and there is a gap between the straight plates 102 and the heat-insulating flange 9.

[0056] like Figure 3 The heat transfer medium within the jacket 8 originates from the outer side of the upstream section of the reaction tube 1. Due to the obstruction of the arc plate 101 and the straight plate 102, the heat transfer medium needs to pass through the outer side of the side tube 2 to heat the side tube 2 and its internal fluid. The heat transfer medium first passes through the lower part of the outer side of the side tube 2, i.e., the lower side of the straight plate 102, and then bends upward in a U-shape through the gap between the straight plate 102 and the heat insulation flange 9. The heat transfer medium then passes through the upper part of the outer side of the side tube 2, i.e., the upper side of the straight plate 102, and then enters the outer side of the downstream section of the reaction tube 1. It can be understood that the flow direction of the heat transfer medium can be the reverse of the above-mentioned flow direction.

[0057] The reaction temperature of the reaction tube 1 is controlled by the jacket 8 and the heat transfer medium, and a unique baffle 10 is used to form a bent U-shaped channel on the outside of the side tube 2 to heat the transmission fluid close to the reaction tube 1 and the chemical reagents inside, so as to prevent the oscillator, side tube 2 and transmission fluid from lowering the internal temperature of the reaction tube 1. Example 3

[0058] Although heating the side tube 2 and the transmission fluid inside it can reduce the influence of the external low temperature environment on the temperature of the reaction tube 1 and chemical reagents, the transmission fluid in the side tube 2 will exchange heat with the transmission fluid in the transmission pipe 4 after the temperature rises, continuously reducing the temperature of the side tube 2 and the transmission fluid inside it, increasing the circulation speed of the heat transfer medium, and increasing the heat preservation energy consumption.

[0059] Please see Figures 5-7 In this embodiment, the transmission pipe 4 is connected to the outside of the heat insulation flange 9 and corresponds to the side pipe 2. The heat insulation flange 9 is provided with a heat insulation piston 11, and the heat insulation piston 11 has transmission fluid on both sides. The heat insulation piston 11 includes a heat insulation column 111 and a piston body 112 connected to both ends of the heat insulation column 111. The piston bodies 112 at both ends of the heat insulation column 111 are slidably and sealingly connected to the side pipe 2 and the transmission pipe 4, respectively.

[0060] Specifically, the transmission pipe 4 port is equipped with a flange, the outer port of the side pipe 2 is equipped with a flange corresponding to the flange of the transmission pipe 4 port, the heat insulation flange 9 is made of heat insulation material, the inner edge of the annular heat insulation flange 9 is equipped with circumferentially distributed through holes for bolt engagement, the transmission pipe 4 port flange is equipped with corresponding circumferentially distributed through holes, and in order to facilitate the connection of the three-layer flange, the side pipe 2 port flange is equipped with corresponding circumferentially distributed notches.

[0061] The outer edge of the heat-insulating flange 9 has circumferentially distributed through holes, and the outer side of the end of the jacket 8 has through holes corresponding to the through holes on the outer edge of the heat-insulating flange 9. The heat-insulating flange 9 connects the side pipe 2 and the transmission pipe 4, reducing heat transfer between the transmission pipe 4 and the side pipe 2, reducing temperature loss from the side pipe 2, and reducing the influence of the external transmission pipe 4 on the temperature of the side pipe 2. At the same time, the side pipe 2 is sealed to block the heat-conducting medium.

[0062] The heat-insulating piston 11, with its heat-insulating column 111 and double piston bodies 112, achieves separation and heat insulation of the transmission fluid. The heat-insulating piston 11 is still a piston as a whole, so it does not affect the transmission of the transmission fluid. The heat-insulating column 111 uses heat-insulating material to reduce heat transfer between the two piston bodies 112 and also achieves temperature difference separation of the transmission fluid. The temperature of the transmission fluid on the side closer to the reaction tube 1 is the same as that of the reaction tube 1 due to heat transfer from the jacket 8, while the temperature on the side farther from the reaction tube 1 is lower. The two piston bodies 112 ensure that there is no transmission fluid outside the heat-insulating column 111, which optimizes the sealing effect of the side pipe 2. The heat-insulating column 111 corresponds to the flange to avoid contact between the transmission fluid and the flange and to prevent transmission fluid leakage.

[0063] The transmission fluid is divided into two parts by the heat-insulating piston 11. The transmission fluid in the side pipe 2 is almost unaffected by the temperature of the transmission fluid in the transmission pipe 4, which reduces the circulation speed of the heat transfer medium and the heating energy consumption of the heat transfer system. Example 4

[0064] Using a flexible diaphragm 3 as an oscillator is suitable for low-temperature mixing reactions where the chemical reagents are non-corrosive. However, the flexible diaphragm 3 is not suitable for high-temperature reactions or reactions involving corrosive chemical reagents.

[0065] Please see Figures 8-13 In this embodiment, the oscillator does not use a flexible diaphragm 3, but instead includes a first welded bellows 12 and an oscillating piston 13. The inner and outer ends of the first welded bellows 12 are respectively connected to a first fixing ring 14 and a first sealing plate 15. The first fixing ring 14 is connected to the inner side of the inner end of the side tube 2. The first sealing plate 15 seals the outer end of the first welded bellows 12. The center of the inner side of the oscillating piston 13 is connected to the outer side of the center of the first sealing plate 15 through an outer connecting rod 16, and the outer side of the oscillating piston 13 is in contact with the transmission fluid.

[0066] The oscillating piston 13 contacts the transmission fluid, and the oscillating piston 13 moves back and forth in the side pipe 2 with the transmission fluid to achieve oscillation drive, which in turn drives the first sealing plate 15 to move back and forth, causing the first welded bellows 12 to extend and retract. The reciprocating movement of the first sealing plate 15 directly oscillates the chemical reagents, achieving thorough mixing of the chemical reagents.

[0067] There is a gap between the outer side of the first welded bellows 12 and the side tube 2. To ensure the normal movement of the oscillating piston 13 and the temperature rise on the outer side of the first welded bellows 12, liquid guiding holes 17 are provided on the upper and lower walls of the outer side of the inner end of the side tube 2. Part of the heat-conducting medium passes through the liquid guiding holes 17 and then through the gap between the outer side of the first welded bellows 12 and the side tube 2, achieving a comprehensive heat preservation effect and ensuring that the chemical reagents have a constant mixing reaction temperature. At the same time, the heat-conducting medium passing through the liquid guiding holes 17 compensates for the volume change on the outer side of the first welded bellows 12, avoiding excessive resistance to the reciprocating movement of the oscillating piston 13. Example 5

[0068] The welded bellows is made of several annular discs welded together. During compression, the adjacent discs come close together and can squeeze the chemical reagents and impact the chemical reagents on the sides. The welded bellows, as a sealing element and part of a high-temperature oscillator, also achieves an unexpected oscillation and mixing effect by using the squeezing and impact of the discs on the chemical reagents.

[0069] Please see Figures 8-13The inner side of the center of the first sealing plate 15 is connected to the second sealing plate 20 via the inner connecting rod 21. The second sealing plate 20 is connected to the second welded bellows 18. The second welded bellows 18 is connected to the second fixing ring 19. The second fixing ring 19 is connected to the inner side of the upstream section of the reaction tube 1. The second welded bellows 18 is located inside the corner of the reaction tube 1. Because the second fixing ring 19 allows chemical reagents to enter only the interior of the second welded bellows 18, and the second sealing plate 20 blocks the outer end of the second welded bellows 18, the side wall of the second welded bellows 18 is provided with several perforations 22, so that the chemical reagents in the upstream section of the reaction tube 1 can enter the interior of the second welded bellows 18 and pass through the perforations 22 before entering the downstream section of the reaction tube 1.

[0070] The perforation 22 is a strip-shaped through hole that extends axially along the second welded bellows 18. There are three perforations 22, none of which are directly facing the downstream section of the reaction tube 1. The second sealing plate 20 has three radially arranged spacers 23 on the side facing the second welded bellows 18. The spacers 23 pass through the perforations 22 and have a certain limiting function.

[0071] The first sealing plate 15 and the second sealing plate 20 reciprocate with the oscillating piston 13, impacting the chemical reagent; the first welded bellows 12 and the second welded bellows 18 extend and retract with the oscillating piston 13, and the adjacent discs on the welded bellows squeeze and impact the chemical reagent.

[0072] The outer diameter of the second sealing plate 20 and the second welded bellows 18 is smaller than the inner diameter of the first fixing ring 14. When the second welded bellows 18 is extended to its longest state, the second sealing plate 20 can pass through the first fixing ring 14 and move into the first welded bellows 12. When the second welded bellows 18 is extended to a medium or short length, there is a gap between the second sealing plate 20 and the first fixing ring 14.

[0073] Taking advantage of the space provided by the side pipe 2 and the oscillator at the corner of the reaction tube 1, a second welded corrugated pipe 18 is installed at the corner of the reaction tube 1, which expands and contracts with the first welded corrugated pipe 12. The second welded corrugated pipe 18 has perforations 22, which serve to distribute and change the flow direction of the chemical reagents. The double-sealing plate structure oscillates and impacts the chemical reagents on both sides of the corner of the reaction tube 1. During the compression of the welded corrugated pipe, the second sealing plate 20 directly oscillates and impacts the chemical reagents upstream of the reaction tube 1, while the first sealing plate 15 oscillates and impacts the chemical reagents downstream of the reaction tube 1. Furthermore, during the expansion and contraction of the welded corrugated pipe, if... Figure 10 As shown, adjacent welding discs can continuously squeeze and oscillate the chemical reagents, introducing more oscillation and impact directions and capabilities, thus enhancing the oscillation and mixing effect. Example 6

[0074] Please see Figures 8-13A first cross 28 is provided on the inner side of the upstream section of the reaction tube 1. A rotating cylinder 26 is rotatably installed through the center of the first cross 28. A stirring blade 27 is connected to the first end of the rotating cylinder 26, i.e., the outer side near the upstream section of the reaction tube 1. A support column 24 is connected to the center of the second sealing plate 20 facing the upstream section of the reaction tube 1. A screw rod 25 is connected to the outer side of the support column 24. The screw rod 25 passes through the center of the second end of the rotating cylinder 26 and engages with the rotating cylinder 26. The inner side of the first end of the rotating cylinder 26 has an opening for the screw rod 25 to pass through, and the second end of the rotating cylinder 26 is closed and has a spiral through hole that engages with the screw rod 25 and allows the screw rod 25 to pass through.

[0075] The screw rod 25 moves axially back and forth with the second sealing plate 20, and the rotating drum 26 and the stirring blade 27 rotate back and forth through the helical meshing structure. The rotation of the stirring blade 27 achieves the stirring and mixing of chemical reagents.

[0076] The rotation of the rotating drum 26 exerts a reaction force on the screw rod 25. Although the welded bellows can suppress and resist this reaction force, prolonged use leads to deformation of the welded bellows, affecting its telescopic function and the squeezing and oscillating effect of the disc on the chemical reagents. In this embodiment, a prism 29 is connected to the outside of the oscillating piston 13. The prism 29 has a hexagonal cross section, and a second cross 30 is provided inside the side tube 2. The second cross 30 has a hexagonal through hole at its center. The prism 29 slides through the second cross 30. The cooperation between the prism 29 and the second cross 30 resists the reaction force of the rotating drum 26 on the screw rod 25, ensuring that the welded bellows can expand and contract stably without deformation.

[0077] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-point oscillating mixing device for the production of chemical reagents, characterized in that, include: The reaction tube (1) is used for the continuous passing of chemical reagents for mixing; Several side tubes (2) are arranged along the reaction tube (1); The oscillator is placed inside the side tube (2) and the chemical reagent inside is sealed. The piston cylinder (5) and the side tube (2) are connected to the piston cylinder (5) through the transmission pipe (4), and the transmission pipe (4) is filled with transmission fluid; The main piston (6) moves back and forth in the piston cylinder (5), causing the oscillators in each side pipe (2) to oscillate through the transmission fluid; The driver (7) drives the main piston (6) to reciprocate; The side tube (2) is connected to the corner of the reaction tube (1) and is integrally connected with the reaction tube (1) to form a T-shaped tube. The side tube (2) corresponds to the upstream section of the reaction tube (1). The oscillator includes a first welded bellows (12) and an oscillating piston (13). The inner and outer ends of the first welded bellows (12) are respectively connected to a first fixing ring (14) and a first sealing plate (15). The first fixing ring (14) is connected to the inner side of the inner end of the side tube (2). The inner side of the oscillating piston (13) is connected to the outer side of the first sealing plate (15), and its outer side is in contact with the transmission fluid. The first sealing plate (15) is connected to the inner side of the second sealing plate (20), the second sealing plate (20) is connected to the second welded bellows (18), the second welded bellows (18) is connected to the second fixing ring (19), the second fixing ring (19) is connected to the inner side of the upstream section of the reaction tube (1), and the second welded bellows (18) is located inside the corner of the reaction tube (1); the side wall of the second welded bellows (18) is provided with several perforations (22); A rotating drum (26) is rotatably installed on the inner side of the upstream section of the reaction tube (1). A stirring blade (27) is connected to the first end of the rotating drum (26). A screw rod (25) is connected to the second sealing plate (20). The screw rod (25) passes through the center of the second end of the rotating drum (26) and meshes with the rotating drum (26).

2. The multi-point oscillating mixing device for chemical reagent production according to claim 1, characterized in that, The T-shaped tube is provided with a jacket (8) on the outside, and a heat-conducting medium flows between the jacket (8) and the T-shaped tube; the side tube (2) is provided with an annular heat-insulating flange (9) on the outside of the pipe opening, and a partition (10) is provided between the jacket (8) and the T-shaped tube. The partition (10) includes an arc plate (101) and two straight plates (102) that are perpendicularly connected to both ends of the arc plate (101). The arc plate (101) is located on the outside of the upstream section of the reaction tube (1), and the straight plates (102) are symmetrical on both sides of the side tube (2). There is a gap between the straight plates (102) and the heat-insulating flange (9).

3. The multi-point oscillating mixing device for chemical reagent production according to claim 2, characterized in that, The transmission pipe (4) is connected to the outside of the heat insulation flange (9) and corresponds to the side pipe (2). The heat insulation flange (9) is provided with a heat insulation piston (11) on the inside. The heat insulation piston (11) has transmission fluid on both sides. The heat insulation piston (11) includes a heat insulation column (111) and piston bodies (112) connected to both ends of the heat insulation column (111). The piston bodies (112) at both ends of the heat insulation column (111) are slidably sealed to the side pipe (2) and the transmission pipe (4) respectively.

4. The multi-point oscillating mixing device for chemical reagent production according to claim 1, characterized in that, The first sealing plate (15) and the second sealing plate (20) reciprocate with the oscillating piston (13) to impact the chemical reagent; the first welded bellows (12) and the second welded bellows (18) extend and retract with the oscillating piston (13), and the adjacent discs on the welded bellows squeeze and impact the chemical reagent.

5. The production process of the multi-point oscillating mixing equipment for chemical reagent production according to any one of claims 1-4, characterized in that, The production process includes the following steps: chemical reagents are continuously pressurized and passed through the reaction tube (1) and mixed in the reaction tube (1); the driver (7) drives the main piston (6) to move back and forth; the main piston (6) causes the oscillators in several side tubes (2) to move back and forth through the transmission fluid, so that the chemical reagents in the reaction tube (1) are oscillated and mixed at multiple points.

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