Multi-point oscillation mixing equipment for chemical reagent production and production process of multi-point oscillation mixing equipment

Abstract

The present invention relates to the technical field of continuous flow reactions, and discloses a multi-point oscillation mixing apparatus for chemical reagent production and a production process thereof, the multi-point oscillation mixing apparatus comprises: a reaction tube for continuous passing and mixing of chemical reagents; the plurality of side pipes are arranged along the reaction pipe; the oscillator is arranged in the side pipe and is used for blocking the chemical reagent on the inner side of the side pipe; the side pipes are connected with the piston cylinder through transmission pipelines, and the transmission pipelines are filled with transmission fluid; the main piston reciprocates in the piston cylinder to enable the oscillators in the side pipes to oscillate through the transmission fluid; the driver drives the main piston to reciprocate; by utilizing the reciprocating motion of the main piston in the piston cylinder, the reciprocating motion can be transmitted to the plurality of oscillators through the transmission pipeline and the transmission liquid, so that the multi-point oscillation mixing of chemical reagents in the reaction tube is promoted; the oscillators directly act on chemical reagents in multiple positions of the reaction tube, so that the oscillation mixing effect of the chemical reagents is remarkably improved, and the mixing reaction quality is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of continuous flow reaction, in particular to a multi-point oscillation mixing device for chemical reagent production and a production process thereof. BACKGROUND

[0002] The continuous flow tubular reactor is a continuous operation reactor with a tubular structure as the core and a significant length-diameter ratio. The core is composed of a reaction pipeline and auxiliary systems. The pipeline diameter spans from several millimeters in the experimental level to several tens of centimeters in the industrial level. The connection methods include welding, flange connection, and threaded connection. Its working principle relies on the plug flow model. The material moves in the pipeline in a pushing manner. The reactant concentration continuously changes along the pipeline length. It can adapt to specific chemical reaction paths to improve the conversion rate and target product yield. The continuous flow tubular reactor has advantages such as continuous production, high efficiency, low cost, stable product quality, and small footprint. It is currently widely used in the fields of hydrocarbon cracking and reforming in petroleum and chemical industry, production of organic chemicals and pharmaceutical intermediates in fine chemical industry, and synthesis of high-performance polymers and nanomaterials in material science.

[0003] The continuous flow reactor mainly includes the following types according to structural characteristics: straight-tube reactor, which is composed of a smooth straight tube. The material flows in a plug flow along the tube length. The radial mixing relies on molecular diffusion and turbulent diffusion. The straight tube is often bent to make reasonable use of the three-dimensional space in combination with the site environment; coil reactor, which adopts a spiral coil; shell-and-tube reactor, which is composed of multiple parallel small tubes forming a tube bundle and integrated in a shell-side heat exchange mechanism. The reactant material flows in the tube, and the heat exchange medium flows outside the tube, combining large-scale processing capacity with high-efficiency heat exchange performance; micro-channel reactor, which adopts a micro-pipeline structure. The specific surface area is increased through extremely small channel size to strengthen heat transfer and achieve efficient mixing.

[0004] The mixing effect of the continuous flow tubular reactor directly determines the reaction performance, product quality, process safety, and economy of the reactor. The core advantages of the reactor, such as continuous operation, precise temperature control, and controllable residence time, completely depend on the uniform mixing of the material. Only when the reactant molecules are fully contacted can the reaction be carried out according to the designed reaction kinetics. Otherwise, significant efficiency loss will occur. For example, in rapid reactions, if the mixing rate is lower than the reaction rate, local reactions will occur before the material is uniformly mixed, resulting in a significant decrease in reactant conversion rate. In multiphase reactions, poor mixing will increase the mass transfer resistance at the phase interface, limiting the overall reaction rate by the mass transfer process. In series reactions, uneven mixing will cause local concentration abnormalities, leading to excessive reactions or incomplete reactions, ultimately reducing the selectivity of the target product. In some reactions, uneven mixing will promote the occurrence of side reactions, generating a large amount of by-products and impurities, increasing the difficulty and cost of subsequent separation and purification, and directly affecting the product purity and quality. Poor mixing may cause local reactant concentration to be too high, and reaction heat to accumulate, leading to a sharp rise in temperature 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: A multi-point oscillating mixing device for the production of chemical reagents, comprising: A reaction tube, used for the continuous passing and mixing of chemical reagents; Several side tubes are arranged along the reaction tube; A oscillator, containing chemical reagents disposed inside the side tube and sealed inside it; 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. The main piston reciprocates within the piston cylinder, causing the oscillators in each side tube to oscillate via the transmission fluid. The driver drives the main piston to reciprocate.

[0008] 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.

[0009] 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.

[0010] Further, the transmission pipeline is connected outside the heat insulation flange and corresponds to the side pipe, the heat insulation flange is internally provided with a heat insulation piston, and the heat insulation piston is provided with transmission liquid on both sides; the heat insulation piston comprises a heat insulation column and piston bodies connected to both ends of the heat insulation column, and the piston bodies at both ends of the heat insulation column are respectively in sliding sealing connection with the side pipe and the transmission pipeline.

[0011] Further, the oscillator is a flexible diaphragm.

[0012] Further, the oscillator comprises a first welded bellows and an oscillation piston, the inner end and the outer end of the first welded bellows are respectively connected with a first fixed ring and a first sealing plate, and the first fixed ring is connected to the inner side of the inner end of the side pipe; the inner side of the oscillation piston is connected to the outer side of the first sealing plate, and the outer side of the oscillation piston is in contact with the transmission liquid.

[0013] Further, the inner side of the first sealing plate is connected with a second sealing plate, the second sealing plate is connected with a second welded bellows, the second welded bellows is connected with a second fixed ring, the second fixed ring is connected to the inner side of the upstream section of the reaction pipe, and the second welded bellows is located inside the corner of the reaction pipe; the side wall of the second welded bellows is provided with a plurality of perforations.

[0014] Further, the first sealing plate and the second sealing plate impact the chemical reagent by reciprocating movement of the oscillation piston; the first welded bellows and the second welded bellows are stretched and contracted with the oscillation piston, and adjacent discs on the welded bellows extrude and impact the chemical reagent.

[0015] Further, a rotating drum is rotatably installed on the inner side of the upstream section of the reaction pipe, and the rotating drum is connected with stirring blades at the first end; the second sealing plate is connected with a screw rod, and the screw rod penetrates through the center of the second end of the rotating drum and is in meshing connection with the rotating drum.

[0016] The application also provides the following technical solutions: A production process of a multi-point oscillation mixing device for chemical reagent production, the production process comprising the following steps: continuously adding pressure to the chemical reagent to pass through the reaction pipe and mix in the reaction pipe; driving the main piston to reciprocate by a driver; and driving the oscillators in the plurality of side pipes to reciprocate by the main piston through the transmission liquid, so as to promote multi-point oscillation mixing of the chemical reagent in the reaction pipe.

[0017] Compared with the prior art, the application has the following beneficial effects: The application promotes multi-point oscillation mixing of the chemical reagent in the reaction pipe by transmitting reciprocating action to the plurality of oscillators through the transmission pipeline and the transmission liquid by reciprocating movement of the main piston in the piston cylinder; the oscillators directly act on the chemical reagent inside a plurality of positions of the reaction pipe, which significantly improves the oscillation mixing effect of the chemical reagent and guarantees the mixing reaction quality; The present application sets the oscillator in the side pipe, which is connected with the reaction pipe to form a T-shaped pipe at the corner of the reaction pipe; the reaction temperature of the reaction pipe is controlled by the jacket and heat-conducting medium, and the unique baffle structure forms a bent U-shaped channel outside the side pipe to heat the transmission fluid close to the reaction pipe and the chemical reagent inside the reaction pipe, avoiding the influence of the oscillator and its transmission mechanism on the internal temperature of the reaction pipe; The present application uses the heat-insulating flange to block the outer port between the side pipe and the jacket, and uses the heat-insulating piston with heat-insulating columns and double piston bodies to realize the separation and heat insulation of the transmission fluid, which does not affect the transmission of the transmission fluid, realizes the temperature difference separation of the transmission fluid, and optimizes the sealing effect of the side pipe, avoids the contact between the transmission fluid and the flange, and avoids the leakage of the transmission fluid. The present application uses the flexible diaphragm to receive the vibration of the transmission fluid, which can be elastically deformed into a bowl shape to produce oscillation in all directions on the chemical reagent inside the reaction pipe, promoting the full mixing reaction of the chemical reagent. The present application uses the welded bellows connected with the sealing plate and the fixing ring at both ends to replace the flexible diaphragm as the oscillator in the high-temperature environment, which makes up for the deficiency of the flexible diaphragm in high-temperature and corrosive chemical reagents; the welded bellows can ensure the sealing effect and use the reciprocating movement of the sealing plate to produce oscillation impact on the chemical reagent, promoting the mixing reaction effect of the chemical reagent. The present application uses the space characteristics of the side pipe and the oscillator at the corner of the reaction pipe to set the second welded bellows which can stretch and contract with the first welded bellows at the corner of the reaction pipe, the second welded bellows has perforations to change the flow direction of the chemical reagent, the double sealing plate structure oscillates and impacts the chemical reagent on both sides of the corner of the reaction pipe, and in the stretching and contracting process of the welded bellows, the adjacent welded discs can continuously squeeze and oscillate the chemical reagent, which enhances the oscillation mixing effect. The present application uses the screw rod which reciprocates with the sealing plate and engages with the rotating drum, the reciprocating movement of the screw rod makes the rotating drum with stirring blades rotate, and the stirring effect of the stirring blades further improves the mixing effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure of the present application is shown in the figure.

[0019] Figure 2 The flexible diaphragm scheme of the present application is shown in the figure.

[0020] Figure 3 The heat preservation of the reaction pipe and the side pipe of the present application is shown in the figure.

[0021] Figure 4 The baffle structure of the present application is shown in the figure.

[0022] Figure 5 The schematic diagram of heat insulation of transmission fluid of the present application.

[0023] Figure 6 The schematic diagram of heat insulation piston of the present application.

[0024] Figure 7 The schematic diagram of external structure of the present application.

[0025] Figure 8 The schematic diagram of section of welded corrugated pipe scheme of the present application.

[0026] Figure 9 The schematic diagram of section of welded corrugated pipe scheme of the present application.

[0027] Figure 10 The schematic diagram of impact of chemical reagent on disc compression of the present application.

[0028] Figure 11 The schematic diagram of internal three-dimensional structure of welded corrugated pipe scheme of the present application from the first perspective.

[0029] Figure 12 The schematic diagram of internal three-dimensional structure of welded corrugated pipe scheme of the present application from the second perspective.

[0030] Figure 13 The schematic diagram of external structure of reaction tube and side tube of the present application.

[0031] In the figure: 1, reaction tube; 2, side tube; 3, flexible diaphragm; 4, transmission pipeline; 5, piston cylinder; 6, main piston; 7, driver; 8, jacket; 9, heat insulation flange; 10, partition; 11, heat insulation piston; 12, first welded corrugated pipe; 13, oscillating piston; 14, first fixed ring; 15, first sealing plate; 16, outer connecting rod; 17, liquid guide hole; 18, second welded corrugated pipe; 19, second fixed ring; 20, second sealing plate; 21, inner connecting rod; 22, perforation; 23, spacing strip; 24, support column; 25, screw rod; 26, rotating cylinder; 27, stirring blade; 28, first cross; 29, prism; 30, second cross; 101, arc plate; 102, straight plate; 111, heat insulation column; 112, piston body. DETAILED DESCRIPTION

[0032] The present application will be further described below. It should be understood that the specific examples described herein are intended to explain the present application and are not intended to limit the present application, i.e., the described examples are only a part of the embodiments of the present application, but not all the embodiments. Example 1

[0033] Please refer to Figure 1 and Figure 2A multi-point oscillation mixing device for chemical reagent production, comprising a reaction tube 1, a plurality of side tubes 2, an oscillator, a transmission pipeline 4, a piston cylinder 5, a main piston 6 and a driver 7.

[0034] The reaction tube 1 is used for continuous mixing of the chemical reagent; the side tubes 2 are arranged along the reaction tube 1 and are in communication with the inside of the reaction tube 1.

[0035] The oscillator is arranged in the side tube 2 and blocks the chemical reagent inside; in this embodiment, the oscillator is a flexible diaphragm 3.

[0036] The side tubes 2 are connected to the piston cylinder 5 through the transmission pipeline 4, which is filled with transmission liquid; the main piston 6 reciprocates in the piston cylinder 5 to make the oscillators in the side tubes 2 oscillate through the transmission liquid; the driver 7 drives the main piston 6 to reciprocate, and the driver 7 is a hydraulic cylinder that can drive the oscillators in the plurality of side tubes 2. It can be understood that in other embodiments, an electric cylinder can be used to replace the hydraulic cylinder.

[0037] The production process of the multi-point oscillation mixing device for chemical reagent production, comprising the following steps: the chemical reagent is continuously mixed in the reaction tube 1 under pressure; the driver 7 drives the main piston 6 to reciprocate; the main piston 6 makes the oscillators in the plurality of side tubes 2 reciprocate through the transmission liquid, promoting the multi-point oscillation mixing of the chemical reagent in the reaction tube 1.

[0038] The reciprocation of the main piston 6 makes the piston cylinder 5 periodically suck and squeeze the transmission liquid, and the transmission liquid moves in the transmission pipeline 4; when the transmission liquid moves to the piston cylinder 5, the chemical reagent in the reaction tube 1 squeezes the flexible diaphragm 3, making the flexible diaphragm 3 move outwardly and deform; when the transmission liquid is discharged from the piston cylinder 5, the transmission liquid squeezes the flexible diaphragm 3, making the flexible diaphragm 3 move into the chemical reagent and impact the chemical reagent, making the chemical reagent oscillate, promoting the oscillation mixing of the chemical reagent; by increasing the reciprocation frequency of the main piston 6, the flexible diaphragm 3 can be deformed at a high frequency, which can improve the oscillation effect and distance of the chemical reagent. The flexible diaphragm 3 directly acts on the chemical reagent inside multiple positions in the reaction tube 1, significantly improving the oscillation mixing effect of the chemical reagent and ensuring the mixing reaction quality of the chemical reagent. Embodiment 2

[0039] The chemical reagent in the reaction tube 1 needs to be mixed and reacted at a specific temperature to promote the mixing efficiency and reaction effect. The transmission liquid in the external low-temperature environment directly contacts the flexible diaphragm 3, which can cause the temperature of the chemical reagent near the side tube 2 to drop. In order to avoid the temperature of the chemical reagent in the reaction tube 1 from dropping and affecting the mixing reaction of the chemical reagent when directly applying the oscillation effect to the chemical reagent, in this embodiment, please refer to the attached Figure 3 and the attached Figure 4The side pipe 2 is connected to the corner of the reaction pipe 1 and is integrally connected with the reaction pipe 1 to form a T-shaped pipe, and the side pipe 2 corresponds to the upstream section of the reaction pipe 1.

[0040] A jacket 8 is arranged outside the T-shaped pipe, and a heat-conducting medium flows between the jacket 8 and the T-shaped pipe; an annular heat-insulating flange 9 for blocking the heat-conducting medium is arranged outside the pipe opening of the side pipe 2, and a partition plate 10 is arranged between the jacket 8 and the T-shaped pipe, the partition plate 10 comprises an arc-shaped plate 101 and two straight plates 102 which are respectively connected to the two ends of the arc-shaped plate 101 perpendicularly, the arc-shaped plate 101 is arranged outside the upstream section of the reaction pipe 1, the straight plates 102 are symmetrically arranged on the two sides of the side pipe 2, and a gap is formed between the straight plates 102 and the heat-insulating flange 9.

[0041] As Figure 3 described above, the heat-conducting medium in the jacket 8 comes from outside the upstream section of the reaction pipe 1, and due to the blocking effect of the arc-shaped plate 101 and the straight plates 102, the heat-conducting medium needs to pass outside the side pipe 2 to heat the transmission liquid inside the side pipe 2, the heat-conducting medium first passes the lower part of the side pipe 2, i.e. the lower side of the straight plates 102, then bends and turns in a U shape upwards through the gap between the straight plates 102 and the heat-insulating flange 9, and finally enters outside the downstream section of the reaction pipe 1 through the upper part of the side pipe 2, i.e. the upper side of the straight plates 102. It can be understood that the flow direction of the heat-conducting medium can be the reverse of the above-mentioned flow direction.

[0042] The jacket 8 and the heat-conducting medium are used to control the reaction temperature of the reaction pipe 1, and the unique partition plate 10 is used to form a bent U-shaped channel outside the side pipe 2 to heat the transmission liquid close to the reaction pipe 1 and the chemical reagent inside the reaction pipe 1, thereby avoiding the decrease of the internal temperature of the reaction pipe 1 caused by the shaker, the side pipe 2 and the transmission liquid. Embodiment 3

[0043] Although heating the side pipe 2 and the transmission liquid inside the side pipe 2 can reduce the temperature influence of the external low-temperature environment on the reaction pipe 1 and the chemical reagent, the transmission liquid inside the side pipe 2 will exchange heat with the transmission liquid inside the transmission pipe 4 after being heated, thereby continuously reducing the temperature of the transmission liquid inside the side pipe 2, increasing the circulation speed of the heat-conducting medium, and increasing the heat preservation energy consumption.

[0044] Please refer to Figures 5-7 In this embodiment, the transmission pipe 4 is connected outside the heat-insulating flange 9 and corresponds to the side pipe 2, a heat-insulating piston 11 is arranged inside the heat-insulating flange 9, and the heat-insulating piston 11 has transmission liquid on both sides; the heat-insulating piston 11 comprises a heat-insulating column 111 and piston bodies 112 connected to both ends of the heat-insulating column 111, and the piston bodies 112 on both ends of the heat-insulating column 111 are respectively connected to the side pipe 2 and the transmission pipe 4 in a sliding sealing manner.

[0045] Specifically, the transmission pipeline 4 port is provided with a flange, the side pipe 2 outer port is provided with a flange corresponding to the transmission pipeline 4 port flange, the heat insulation flange 9 is made of heat insulation material, the annular heat insulation flange 9 inner edge is provided with a circumferentially distributed through hole matched with the bolt, the transmission pipeline 4 port flange is provided with a corresponding circumferentially distributed through hole, in order to facilitate the three-layer flange connection, the side pipe 2 port flange is provided with a corresponding circumferentially distributed notch.

[0046] The heat insulation flange 9 outer edge is provided with a circumferentially distributed through hole, and the outer side of the jacket 8 end portion is provided with a through hole corresponding to the heat insulation flange 9 outer edge through hole. The heat insulation flange 9 is connected between the side pipe 2 and the transmission pipeline 4, reducing the heat transfer between the transmission pipeline 4 and the side pipe 2, reducing the temperature loss of the side pipe 2, and reducing the influence of the external transmission pipeline 4 on the temperature of the side pipe 2. At the same time, the side pipe 2 blocks the heat conducting medium.

[0047] The heat insulation piston 11 with the heat insulation column 111 and the double piston body 112 realizes the transmission liquid separation and heat insulation, the heat insulation piston 11 as a whole is still a piston, so it does not affect the transmission of the transmission liquid; the heat insulation column 111 is made of heat insulation material, reducing the heat transfer between the two piston bodies 112, also realizing the temperature difference separation of the transmission liquid, the transmission liquid temperature on the side close to the reaction tube 1 is the same as the heat transfer of the jacket 8 and the reaction tube 1 temperature, and the temperature on the side far away from the reaction tube 1 is lower; the two piston bodies 112 make the outside of the heat insulation column 111 have no transmission liquid, optimizing the sealing effect of the side pipe 2, avoiding the contact between the transmission liquid and the flange, and avoiding the leakage of the transmission liquid.

[0048] The transmission liquid is divided into two parts by the heat insulation piston 11, and the transmission liquid in the side pipe 2 is almost not affected by the temperature of the transmission liquid in the transmission pipeline 4, reducing the circulating speed of the heat conducting medium and the heating energy consumption of the heat conducting system. Embodiment 4

[0049] The flexible diaphragm 3 with elasticity is adopted as the oscillator, which is suitable for low temperature and chemical reagent non-corrosive mixing reaction occasions. However, in the occasion of higher temperature and chemical reagent corrosion, the flexible diaphragm 3 is not suitable.

[0050] Please refer to Figures 8-13 In the embodiment, the oscillator does not adopt the flexible diaphragm 3, but the oscillator includes a first welded bellows 12 and an oscillation piston 13, the inner end and the outer end of the first welded bellows 12 are respectively connected with a first fixed ring 14 and a first sealing plate 15, and the first fixed ring 14 is connected to the inner side of the inner end of the side pipe 2; the first sealing plate 15 realizes the sealing of the outer end of the first welded bellows 12, and the inner side center of the oscillation piston 13 is connected to the outer side center of the first sealing plate 15 through an outer connecting rod 16, and the outer side of the oscillation piston 13 is in contact with the transmission liquid.

[0051] The oscillating piston 13 is in contact with the transmission liquid, and the oscillating piston 13 reciprocates in the side pipe 2 to achieve oscillation driving, and drives the first sealing plate 15 to reciprocate to make the first welded bellows 12 stretch and shrink. The first sealing plate 15 reciprocates to directly oscillate the chemical reagent, so that the chemical reagent is fully mixed.

[0052] There is a gap between the outside of the first welded bellows 12 and the side pipe 2. In order to ensure the normal movement of the oscillating piston 13 and the temperature rise of the outside of the first welded bellows 12, the outer side of the upper wall and the lower wall of the inner end of the side pipe 2 are provided with liquid guide holes 17, and part of the heat conducting medium passes through the liquid guide holes 17 and then passes through the first welded bellows 12 and the side pipe 2 to achieve comprehensive heat preservation effect, so as to ensure that the chemical reagent has a constant mixing reaction temperature. At the same time, the heat conducting medium passing through the liquid guide hole 17 makes up for the volume change of the outside of the first welded bellows 12, so as to avoid that the reciprocating resistance of the oscillating piston 13 is too large. Embodiment 5

[0053] The welded bellows is welded by a plurality of annular discs. In the compression process, the adjacent discs can extrude and impact the chemical reagent, and the welded bellows serves as a sealing member and a part of the high-temperature oscillator, so that the extrusion and impact of the discs on the chemical reagent also achieve an unexpected oscillation mixing effect.

[0054] Please refer to Figures 8-13 The center inside of the first sealing plate 15 is connected with the second sealing plate 20 through the inner connecting rod 21, the second sealing plate 20 is connected with the second welded bellows 18, the second welded bellows 18 is connected with the second fixed ring 19, the second fixed ring 19 is connected to the inner side of the upstream section of the reaction pipe 1, and the second welded bellows 18 is located at the inner side of the corner of the reaction pipe 1. Since the second fixed ring 19 allows the chemical reagent to only enter the inside 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 a plurality of perforations 22, so that the chemical reagent in the upstream section of the reaction pipe 1 enters the inside of the second welded bellows 18, and can only enter the downstream section of the reaction pipe 1 after passing through the perforations 22.

[0055] The perforations 22 are strip-shaped through holes and extend axially along the second welded bellows 18. The number of the perforations 22 is three, and the three perforations 22 are not directly towards the downstream section of the reaction pipe 1. The second sealing plate 20 is provided with three radial spacing strips 23 on the side towards the second welded bellows 18, the spacing strips 23 pass through the perforations 22 and have a certain limiting effect.

[0056] The first sealing plate 15 and the second sealing plate 20 impact the chemical reagent with the reciprocating movement of the oscillating piston 13; the first welded bellows 12 and the second welded bellows 18 stretch and shrink with the oscillating piston 13, and the adjacent discs on the welded bellows extrude and impact the chemical reagent.

[0057] The outer diameter of the second sealing plate 20 and the second welded bellows 18 is smaller than the inner diameter of the first fixed ring 14. When the second welded bellows 18 is elongated to the longest state, the second sealing plate 20 can move through the first fixed ring 14 into the first welded bellows 12, and when the second welded bellows 18 is retracted to a medium or short length, there is a gap between the second sealing plate 20 and the first fixed ring 14.

[0058] By using the spatial features of the side tube 2 and the oscillator arranged at the corner of the reaction tube 1, the second welded bellows 18 is arranged inside the corner of the reaction tube 1 and retracts with the first welded bellows 12, and the second welded bellows 18 has a perforation 22, which plays a role in distributing the flow direction of the chemical reagent. The double-sealing plate structure respectively oscillates and impacts the chemical reagent on both sides of the corner of the reaction tube 1. During the compression of the welded bellows, the second sealing plate 20 directly oscillates and impacts the chemical reagent on the upstream section of the reaction tube 1, and the first sealing plate 15 oscillates and impacts the chemical reagent on the downstream section of the reaction tube 1. Moreover, during the expansion and contraction of the welded bellows, as shown in Figure 10 , adjacent welded discs can continuously squeeze and oscillate the chemical reagent, introduce the chemical reagent, bring more oscillation impact directions and capabilities, and enhance the oscillation mixing effect. Embodiment 6

[0059] Please refer to Figures 8-13 , a first cross 28 is arranged inside the upstream section of the reaction tube 1, a rotating drum 26 is rotatably arranged in the middle of the first cross 28, and a stirring blade 27 is connected to the first end of the rotating drum 26, i.e., close to the outside of the upstream section of the reaction tube 1. A support 24 is connected to the center of the side of the second sealing plate 20 facing the upstream section of the reaction tube 1, a helical rod 25 is connected to the outside of the support 24, and the helical rod 25 passes through the center of the second end of the rotating drum 26 and engages with the rotating drum 26. The first end of the rotating drum 26 has an opening inside, through which the helical rod 25 passes, and the second end of the rotating drum 26 is closed and has a helical hole through which the helical rod 25 passes.

[0060] The helical rod 25 reciprocally moves axially with the second sealing plate 20, and the rotating drum 26 and the stirring blade 27 reciprocally rotate through the helical engagement structure. The rotation of the stirring blade 27 realizes the stirring and mixing effect on the chemical reagent.

[0061] The rotation of the rotating drum 26 has a reaction force on the helical rod 25, although the welded bellows can resist the reaction force, but after long-term use, the welded bellows will deform, affecting its expansion and contraction function and the squeezing and oscillation effect of the discs on the chemical reagent. In this embodiment, a prism 29 is connected to the outside of the oscillation piston 13, the cross section of the prism 29 is hexagonal, a second cross 30 is arranged inside the side tube 2, the center of the second cross 30 is provided with a hexagonal hole, the prism 29 slides through the second cross 30, and the cooperation of the prism 29 and the second cross 30 resists the reaction force of the rotating drum 26 on the helical rod 25, ensuring that the welded bellows stably expand and contract without deformation.

[0062] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications can be made to the technical solutions described in the foregoing embodiments without paying creative labor, or some technical features thereof can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

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); A 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.

2. The multi-point oscillating mixing device for chemical reagent production according to claim 1, characterized in that, 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).

3. The multi-point oscillating mixing device for chemical reagent production according to claim 2, 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).

4. The multi-point oscillating mixing device for chemical reagent production according to claim 3, 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.

5. The multi-point oscillating mixing device for chemical reagent production according to claim 1, characterized in that, The oscillator is a flexible diaphragm (3).

6. The multi-point oscillating mixing device for chemical reagent production according to claim 2, characterized in that, 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.

7. The multi-point oscillating mixing device for chemical reagent production according to claim 6, characterized in that, 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 corrugated pipe (18), the second welded corrugated pipe (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 pipe (1), and the second welded corrugated pipe (18) is located inside the corner of the reaction pipe (1); the side wall of the second welded corrugated pipe (18) is provided with several perforations (22).

8. The multi-point oscillating mixing device for chemical reagent production according to claim 7, 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.

9. The multi-point oscillating mixing device for chemical reagent production according to claim 7, characterized in that, 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).

10. The production process of the multi-point oscillating mixing equipment for chemical reagent production according to any one of claims 1-9, 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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