Active multiphase feeding dynamic tubular reactor

Abstract

The invention discloses an active multiphase feeding dynamic tubular reactor which comprises a reactor body and a rotating shaft penetrating through the reactor body, the reactor body comprises a distribution section and a premixing section; the premixing section is used for feeding materials and premixing the materials with split and shunted materials. The premixing section is communicated with the interior of the rotating shaft for feeding; the distribution section and the pre-mixing section are sequentially and adjacently arranged, different reaction liquids enter through different paths of the distribution section and the pre-mixing section and then converge, and after being split and shunted in the distribution section, continuous-phase materials are mixed with dispersed-phase fed materials of the pre-mixing section in a small range. Meanwhile, reaction liquid is fully mixed in a rotary shearing state of the pre-mixing section, so that the contact area and the mixing effect of materials are improved, the reaction rate is greatly increased, and the processes of fluid control, mixing, reaction and the like are accurately controlled in a micro-scale; meanwhile, the distribution section and the premixing section are coaxially and adjacently arranged, so that the space required by arrangement is relatively small.

Description

Technical Field

[0001] The invention belongs to the technical field of tubular reactors, and in particular relates to an active multiphase feeding dynamic tubular reactor. Background Art

[0002] A dynamic tubular reactor is a continuous flow reaction device in which materials flow in the tube and undergo chemical reactions. By reasonably controlling the flow rate, temperature, pressure and other parameters of the material, the progress of the reaction can be precisely controlled. The flow state inside can be laminar or turbulent, and different flow states will affect the degree of mixing and mass transfer efficiency between the reactants. For example, in a laminar state, the material has a parabolic velocity distribution along the pipe wall, which may be applicable to some reactions that do not require particularly high mixing; while the turbulent state can greatly enhance the mixing between the reactants, making the reaction more uniform and rapid. However, in the reaction system of large flow and large flow ratio of the tubular reactor in the prior art, uneven mixing is prone to occur; at the same time, the structure of the dynamic mixer is relatively complex, and usually requires a large installation space; ordinary dynamic mixers are more suitable for processing materials with good fluidity, and for materials that are difficult to mix, such as high viscosity and high solid content, the mixing effect of the dynamic mixer may be affected. Therefore, it is necessary to develop an active multiphase feeding dynamic tubular reactor. Summary of the invention

[0003] The object of the present invention is to provide an active multiphase feeding dynamic tubular reactor to solve the above-mentioned technical problems, wherein a distribution section and a premixing section are arranged adjacent to each other in sequence, and different reaction liquids enter the distribution section and the premixing section through different paths respectively and then merge, and the continuous phase material is mixed with the dispersed phase feed of the premixing section in a small range after being split and diverted in the distribution section, and at the same time, the reaction liquid is fully mixed under the state of rotational shear of the premixing section, thereby increasing the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale; at the same time, the distribution section and the premixing section are coaxial and adjacently arranged, and the space required for the arrangement is small.

[0004] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is as follows:

[0005] An active multiphase feeding dynamic tubular reactor comprises a reactor body and a rotating shaft arranged through the reactor body; the reactor body comprises a distribution section arranged adjacent to each other for splitting and diverting materials, and a premixing section for feeding and premixing the split and diverted materials. The premixing section is connected to the inside of the rotating shaft for feeding; the distribution section and the premixing section are arranged adjacent to each other, and different reaction liquids enter through different paths of the distribution section and the premixing section respectively and then merge, and the continuous phase material is mixed with the dispersed phase feed of the premixing section in a small range after being split and diverted in the distribution section, and at the same time, the reaction liquid is fully mixed under the state of rotational shearing of the premixing section, thereby increasing the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale;

[0006] At the same time, the distribution section and the premixing section are coaxial and adjacently arranged, and the space required for the arrangement is small.

[0007] Preferably, the distribution section comprises a first cavity, a homogenizing rotor coaxially connected to the rotating shaft, and a flow dividing gear stator coaxially arranged on one side of the homogenizing rotor, and the homogenizing rotor and the flow dividing gear stator are both arranged in the first cavity;

[0008] The premixing section includes a second cavity, a multi-channel homogenizing rotor coaxially arranged on the side of the splitter gear stator away from the homogenizing rotor, the multi-channel homogenizing rotor is coaxially connected to the rotating shaft, and the multi-channel homogenizing rotor is coaxially arranged in the second cavity. The multi-channel homogenizing rotor is connected to the inside of the rotating shaft for feeding; the first cavity, the homogenizing rotor, the splitter gear stator, the second cavity, and the multi-channel homogenizing rotor are all coaxially arranged with the rotating shaft. Specifically, the diverter gear stator is arranged on the side of the homogenizing rotor in the positive direction of the material flow direction; the multi-channel homogenizing rotor is arranged on the side of the diverter gear stator in the positive direction of the material flow direction; wherein the inner surface of the first cavity cooperates with the outer edge of the homogenizing rotor; the inner surface of the second cavity cooperates with the outer edge of the multi-channel homogenizing rotor; in this technical scheme, the distribution section distributes and splits the feed of the continuous phase, and after the continuous phase enters the first cavity, the homogenizing rotor connected to the rotating shaft is in a rotating state. The homogenizing rotor in the rotating state cooperates with the diverter gear stator arranged on one side thereof to split and divert the material, and divides the continuous phase liquid into multiple uniform fine liquid fractions and then transports them to the rear end. During the transportation process, through the rotation of the homogenizing rotor, it can be ensured that the flow rate distributed to each flow channel of the diverter gear stator arranged between its teeth per unit time is consistent.

[0009] The continuous phase divided into multiple uniform fine liquid fractions is transported to the premixing section, wherein the premixing section is provided with a multi-channel homogenizing rotor, wherein the multi-channel homogenizing rotor is connected with the inside of the rotating shaft to feed the dispersed phase, and while the dispersed phase is fed, it meets the multiple fine liquid fractions transported from the distribution section, and under the action of the rotating shaft driving the multi-channel homogenizing rotor, mixing in a small range is achieved, and at the same time, the multi-channel homogenizing rotor is rotated and sheared to fully mix the reaction liquid, thereby increasing the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the processes of fluid control, mixing, and reaction at a microscale.

[0010] Preferably, the homogenizing rotor comprises a first connecting end connected to the rotating shaft, a first gear tooth arranged on the first connecting end, and a first channel is arranged between the first gear teeth;

[0011] The diverter gear stator includes a second gear tooth connected to the first cavity, and a second channel is arranged between the second gear teeth. Since the first connection end is connected to the rotating shaft, the first connection end can be driven by the rotating shaft to rotate, thereby driving the first gear tooth. After the continuous phase enters through the first cavity, the material can be transported to the second gear tooth through the multiple first channels arranged between the first gear teeth. The material is split and distributed through the fixed second channel, so that the continuous phase liquid is divided into multiple uniform fine liquids and then transported to the rear end. Under the rotation of the first gear teeth, the consistency of the flow rate distributed to each second channel per unit time can be ensured; thereby providing a basis for subsequent small-scale mixing in the premixing section.

[0012] Preferably, along the projection of the material conveying direction, the radial outer edge projection range of the first gear tooth falls within the radial outer edge projection range of the second gear tooth. The radial outer edge projection range of the first channel falls within the radial outer edge projection range of the second channel; the radial inner edge projection range of the first channel falls within the radial inner edge projection range of the second channel; the first gear tooth and the second gear tooth correspond to each other in the axial direction, thereby improving the stability of the operation process of the first gear tooth cooperating with the second gear tooth to split and distribute the material. At the same time, this arrangement method is conducive to reducing the required assembly space and making the structure more compact.

[0013] Preferably, the number of teeth of the first gear teeth is not equal to the number of teeth of the second gear teeth. The number of teeth of the homogenizing rotor and the number of teeth of the diverter gear stator are different, ensuring that the flow channel will not be closed for a short time during the rotation of the homogenizing rotor due to the same number of teeth, and the internal pressure of the reactor will not increase instantly. It should be emphasized that the ratio of the number of teeth can be appropriately adjusted according to the actual flow demand during the production process, and no specific ratio of the number of teeth is limited here.

[0014] Preferably, the distribution section also includes a first liquid inlet cavity, which is connected to the first cavity. The first liquid inlet cavity is provided with a continuous phase feed port that is connected to the first cavity and the outside of the reactor body for feeding; wherein the end of the first liquid inlet cavity along the material flow direction is connected to the homogenizing rotor. wherein the rotating shaft passes through the first liquid inlet cavity and the first cavity. The first cavity is provided to provide a channel for continuous phase feeding, and at the same time separates the feed from the premixing section for independent feeding, so as to cooperate with the subsequent splitting of the continuous phase into multiple fine liquid fractions, and then mixes with the dispersed phase of the premixing section to achieve a mixing effect in a small range.

[0015] Preferably, the multi-channel homogenizing rotor includes a second connecting end connected to the rotating shaft, a third gear tooth arranged on the second connecting end, and a connecting channel that penetrates the second connecting end and the third gear tooth and connects to the outside of the multi-channel homogenizing rotor, and the connecting channel is connected to the inside of the rotating shaft. Specifically, the connecting channel is connected to the second channel, a third channel is arranged between the third gear teeth, and the third channel is connected to the second channel; a second connecting end connected to the rotating shaft is arranged so that the second connecting end can rotate under the drive of the rotating shaft, and a third gear tooth is arranged on the second connecting end so that the third gear tooth is in a state driven by the rotating shaft, thereby the connecting channel that penetrates the third gear tooth is used to transport the dispersed phase, so that the dispersed phase can be transported to the end of each tooth of the third gear tooth under the action of rotation, thereby continuously meeting with the multiple fine liquids split at the front end, thereby realizing a small-scale mixing of the continuous phase and the dispersed phase; at the same time, the reaction liquid is fully mixed under the state of the rotation shear of the third gear tooth, thereby increasing the contact area and mixing effect of the material, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale.

[0016] Preferably, the connecting channel includes a first flow passage penetrating through the second connecting end, a second flow passage connected to the first flow passage and connected to the outside of the multi-channel homogenizing rotor, the second flow passage penetrating through the third gear setting, and a third flow passage connected to the first flow passage being set inside the rotating shaft. The second flow passage is connected with the second channel; the material is fed through the third flow passage, and thus transported to the first flow passage and the second flow passage, so as to be output to the external second cavity for premixing with the material after being split and diverted by the diverter gear stator; the first flow passage and the third flow passage are arranged perpendicularly; the third flow passage is arranged on the rotating shaft, and the third flow passage is connected with the first flow passage, so that the dispersed phase can enter the third flow passage through one end of the rotating shaft, and thus transported to the first flow passage and the second flow passage, so that the dispersed phase is evenly transported to the ends of each tooth of the third gear tooth. The structure requires less space, and at the same time, the second flow passage is in a penetrating state at the end of the third gear tooth, so that the ends of each tooth of the third gear tooth are the discharging ends, so that the material output to the outside by the third gear tooth during the rotation process is more uniform, which is convenient for small-scale mixing with the continuous phase of uniform multiple fine liquid separations, so that the mixing state is more uniform.

[0017] Preferably, along the material transmission direction, the second flow passage is arranged through each third gear tooth in one or more directions of the forward direction, reverse direction, and radial direction. In this technical solution, the second flow passage is arranged through each third gear tooth in the forward direction, reverse direction, and radial direction; so that the end of the third gear tooth has multiple discharge ports, which is convenient for small-scale mixing of materials.

[0018] Preferably, the first flow passage is arranged in the radial direction of the second connection end and is connected with the second flow passage;

[0019] The first flow passage includes a flow port connected to the third flow passage, a flow ring connected to the flow port, and flow branches connecting the flow ring and each second flow passage. The flow port is radially arranged in the second connection end, and 4 are arranged in the technical solution, which are evenly distributed around the axis of the rotating shaft; the flow port, the flow ring, and the flow branch are arranged so that the material from the third flow passage enters through the flow port and then passes through the flow ring, and the flow ring is connected with each flow branch, so that the dispersed phase is distributed to the end of each tooth of the third gear teeth.

[0020] Preferably, the premixing section also includes a first homogenizing stator disposed in the second cavity, and the first homogenizing stator is disposed on the side of the multi-channel homogenizing rotor away from the diverter gear stator. Projected along the axial direction of the rotating shaft, the radial outer edge projection surface of the third gear tooth falls into the radial outer edge projection surface of the first homogenizing stator gear tooth. The radial inner edge projection surface of the third gear tooth falls into the radial inner edge projection surface of the first homogenizing stator gear tooth. The first homogenizing stator is provided to fully mix the reaction liquid under the state of rotating shear of the third gear tooth, thereby increasing the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale.

[0021] Preferably, the rotating shaft is connected to a rotating joint for feeding, wherein the rotating joint is connected to the third flow passage. The rotating joint is provided with a dispersed phase feed port to provide a channel for dispersed phase feeding; the dispersed phase liquid is connected by the rotating joint, and the rotating joint ensures that the liquid can be smoothly transported when the rotating shaft rotates.

[0022] Preferably, the reactor body further comprises one or more mixing sections arranged on one side of the premixing section; the mixing section comprises a third cavity, a mixing homogenizing rotor, and a mixing homogenizing stator, and the mixing homogenizing rotor and the mixing homogenizing stator are coaxially arranged in the third cavity in sequence along the material conveying direction. The inner surface of the third cavity matches the outer edge of the mixing homogenizing rotor; the mixing homogenizing rotor is connected to the rotating shaft to perform a rotational mixing operation; the mixing section is arranged on one side of the premixing section along the material conveying direction. Projected along the material conveying direction, the radial outer edge projection surface of the gear teeth of the mixing homogenizing rotor falls within the range of the radial outer edge projection surface of the gear teeth of the mixing homogenizing stator. The radial inner edge projection surface of the gear teeth of the mixing homogenizing rotor falls within the range of the radial inner edge projection surface of the gear teeth of the mixing homogenizing stator. The mixing homogenizing rotor is coaxially connected to the rotating shaft, so that the mixing homogenizing rotor can be rotated by the driving action of the rotating shaft, thereby cooperating with the adjacently arranged mixing homogenizing stator. The shear between the fixed teeth and the rotating teeth makes the reaction liquid fully mixed, thereby increasing the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale.

[0023] Preferably, the reactor body further comprises one or more extended multiphase sections arranged on one side of the premixing section; the extended multiphase section comprises a fourth cavity, an extended homogenizing rotor, and an extended homogenizing stator, the extended homogenizing rotor and the extended homogenizing stator are coaxially arranged in the fourth cavity in the material conveying direction, and the extended homogenizing stator is provided with a fourth flow passage connecting the fourth cavity and the outside of the reactor body. The inner surface of the fourth cavity matches the outer edge of the extended homogenizing rotor; the extended homogenizing rotor is connected to the rotating shaft for rotational mixing; the fourth flow passage is transversely penetrated by the extended homogenizing stator and is connected to the outside of the reactor body. Specifically, the fourth cavity is provided with an extended multiphase feed port connected to the fourth flow passage; the extended multiphase section is arranged on one side of the premixing section along the material conveying direction. Projected along the material conveying direction, the radial outer edge projection surface of the gear teeth of the extended homogenizing rotor falls within the range of the radial outer edge projection surface of the gear teeth of the extended homogenizing stator. The radial inner edge projection surface of the gear teeth of the extended homogenizing rotor falls within the range of the radial inner edge projection surface of the gear teeth of the extended homogenizing stator. In the present technical solution, the distribution section, premixing section, mixing section, extended multiphase section, and multiple mixing sections are arranged in sequence. Each section is coaxially connected and a sealing ring is arranged between each section to improve the sealing degree; the extended multiphase section is arranged to facilitate the mixing reaction between multiple materials, and the device can accommodate a wider number of materials. At the same time, the extended multiphase section in the present technical solution is modularly arranged, and the number of corresponding arrangements can be adjusted according to the needs of different types of materials; the extended homogenizing stator is arranged with a fourth flow channel to facilitate the transportation of materials. After the material enters the extended homogenizing stator, it flows into the reactor through the fourth flow channel, and under the shear of the extended homogenizing rotor, the fluid is quickly and evenly cut into fine components, and then quickly and evenly mixed under the shear of the extended homogenizing rotor and the extended homogenizing stator, and the mixing homogenizing rotor and the mixing homogenizing stator. The multiphase material inlet and its related components can be added and replaced according to the actual reaction requirements, providing convenient conditions for the flexible use of the reactor; the multiphase material inlet and its related components can be added and replaced according to the actual reaction requirements, providing convenient conditions for the flexible use of the reactor.

[0024] Preferably, a discharge port is provided on a side of the reactor body away from the distribution section;

[0025] A first supporting block and a second supporting block are respectively arranged at both ends of the reactor body, the first liquid inlet cavity is arranged in the first supporting block, and the discharge port is arranged on the second supporting block, wherein the second supporting block is arranged on one side of the last mixing section and at the end of the reactor body.

[0026] The rotating shaft passes through the first bearing block and the second bearing block. The first bearing block and the second bearing block are both provided with a mechanical seal, a bearing and a retaining ring coaxially connected to the rotating shaft.

[0027] Preferably, one or more temperature control modules are arranged on the outer surface of the reactor body. In the technical scheme, multiple temperature control modules are arranged, wherein the temperature control modules can adopt two modes of electric heating and cooling liquid cooling, and the tubular reactor has heating and cooling functions through heat exchange; the temperature control module is fitted with the surface of the reactor body, and is arranged on one or more sections of the distribution section, premixing section, mixing section, and extended multiphase section according to actual needs.

[0028] Preferably, the reactor body is connected to a frame, a motor is arranged on the frame, and the motor is connected to the rotating shaft by transmission. Specifically, the frame is connected to the first bearing block and the second bearing block; the motor is connected to the rotating shaft by a transmission belt.

[0029] This application has achieved beneficial technical effects:

[0030] The present invention has a distribution section and a premixing section arranged adjacent to each other in sequence, and different reaction liquids enter the distribution section and the premixing section through different paths respectively and then merge. After the continuous phase material is split and diverted in the distribution section, it is mixed with the dispersed phase feed of the premixing section in a small range. At the same time, the reaction liquid is fully mixed under the state of rotational shearing of the premixing section, thereby increasing the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale. At the same time, the distribution section and the premixing section are coaxial and adjacently arranged, and the space required for the arrangement is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Shown is a schematic structural diagram of the present invention;

[0032] Figure 2 The figure shows a schematic diagram of the structure of the present invention in which the temperature control module is omitted;

[0033] Figure 3 Shown is another structural schematic diagram of the present invention in which the temperature control module is omitted;

[0034] Figure 4 Shown is a schematic structural diagram of the reactor body;

[0035] Figure 5 Shown is a schematic diagram of the three-dimensional structure of the reactor body;

[0036] Figure 6 Shown is a schematic diagram of the side structure of the reactor body;

[0037] Figure 7 Shown Figure 6 AA section structural diagram;

[0038] Figure 8 Shown Figure 6 BB-direction cross-sectional structural diagram;

[0039] Fig. 9 Shown Figure 8 Schematic diagram of the local structure;

[0040] Fig.10 Shown Figure 6 Schematic diagram of the CC-section structure;

[0041] Fig.11 Shown is a schematic diagram of the explosion structure of the reactor body;

[0042] Fig.12 Another exploded structure schematic diagram of the reactor body is shown;

[0043] Fig.13 The figure shows a schematic diagram of the connection state between the rotating shaft and the multi-channel homogenizing rotor;

[0044] Fig.14 Shown Fig.13 DD-direction cross-sectional structural diagram;

[0045] Fig.15 Another schematic diagram showing the connection state between the rotating shaft and the multi-channel homogenizing rotor;

[0046] Fig.16 Shown Fig.15 EE section structure schematic diagram. DETAILED DESCRIPTION

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0048] The technical solution of the present invention is described in detail below with specific embodiments.

[0049] Reference Figures 1 to 16As shown, an active multiphase feeding dynamic tubular reactor comprises a reactor body 1, a rotating shaft 2 arranged through the reactor body 1; the reactor body 1 comprises a distribution section 3 arranged adjacent to each other for splitting and diverting materials, and a premixing section 4 for feeding and premixing the split and diverted materials. The rotating shaft 2 penetrates the reactor body 1 and rotates inside; the premixing section 4 is connected to the inside of the rotating shaft 2 for feeding; the distribution section 3 and the premixing section 4 are arranged adjacent to each other, and different reaction liquids enter through different paths of the distribution section 4 and the premixing section 4 respectively and then merge, and the continuous phase material is mixed with the dispersed phase feed of the premixing section 5 in a small range after being split and diverted in the distribution section 3, and at the same time, the reaction liquid is fully mixed under the state of rotation and shearing of the premixing section 4, so as to increase the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale;

[0050] At the same time, the distribution section 3 is coaxial with the premixing section and is arranged adjacent to it, so the space required for its arrangement is small.

[0051] The distribution section 3 includes a first cavity 31, a homogenizing rotor 32 coaxially connected to the rotating shaft 1, and a flow dividing gear stator 33 coaxially arranged on one side of the homogenizing rotor 32. The homogenizing rotor 32 and the flow dividing gear stator 33 are both arranged in the first cavity 31.

[0052] The premixing section 4 includes a second cavity 41, a multi-channel homogenizing rotor 42 coaxially arranged on the side of the splitter gear stator 33 away from the homogenizing rotor 32, the multi-channel homogenizing rotor 42 is coaxially connected to the rotating shaft 2, and the multi-channel homogenizing rotor 42 is coaxially arranged in the second cavity 41. The multi-channel homogenizing rotor 42 is connected to the inside of the rotating shaft 2 for feeding; the first cavity 31, the homogenizing rotor 32, the splitter gear stator 33, the second cavity 41, and the multi-channel homogenizing rotor 42 are all coaxially arranged with the rotating shaft 2. Specifically, the diverter gear stator 33 is arranged on the side of the homogenizing rotor 32 in the positive direction of the material flow direction; the multi-channel homogenizing rotor 42 is arranged on the side of the diverter gear stator 33 in the positive direction of the material flow direction; wherein the inner surface of the first cavity 31 cooperates with the outer edge of the homogenizing rotor 32; the inner surface of the second cavity 41 cooperates with the outer edge of the multi-channel homogenizing rotor 42; in the present technical scheme, the distribution section 3 distributes, splits and diverts the feed of the continuous phase. After the continuous phase enters the first cavity 41, the homogenizing rotor 32 connected to the rotating shaft 2 is in a rotating state. The homogenizing rotor 32 in the rotating state cooperates with the diverter gear stator 33 arranged on one side thereof to split and divert the material, and divides the continuous phase liquid into multiple uniform fine liquid fractions and then transports them to the rear end. During the transportation process, through the rotation of the homogenizing rotor 32, it can be ensured that the flow rate distributed to each flow channel arranged between the gear teeth of the diverter gear stator 33 per unit time is consistent.

[0053] The continuous phase divided into multiple uniform fine liquid fractions is transported to the premixing section 4, wherein the premixing section 4 is provided with a multi-channel homogenizing rotor 42, wherein the multi-channel homogenizing rotor 42 is connected to the inside of the rotating shaft 2 to feed the dispersed phase, and while the dispersed phase is fed, it meets the multiple fine liquid fractions transported from the distribution section 3, and under the action of the rotating shaft 2 driving the multi-channel homogenizing rotor 42, mixing in a small range is achieved, and at the same time, the multi-channel homogenizing rotor 42 is rotated and sheared to fully mix the reaction liquid, increase the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale.

[0054] The homogenizing rotor 32 includes a first connecting end 321 connected to the rotating shaft 2, and first gear teeth 322 disposed on the first connecting end 321, and a first channel 323 is disposed between the first gear teeth 322;

[0055] The splitter gear stator 33 includes a second gear tooth 331 connected to the first cavity 31, and a second channel 332 is arranged between the second gear teeth 331. Since the first connecting end 321 is connected to the rotating shaft 2, the first connecting end 321 can be driven by the rotating shaft 2 to rotate, thereby driving the first gear tooth 322. After the continuous phase enters through the first cavity 31, the material can be transported to the second gear tooth 331 through the multiple first channels 323 arranged between the first gear teeth 322. The material is split and distributed through the fixed second channel 332, so that the continuous phase liquid is divided into multiple uniform fine liquids and then transported to the rear end. Under the rotation of the first gear teeth 322, the flow rate distributed to each second channel 332 per unit time can be ensured to be consistent; thereby providing a basis for subsequent small-scale mixing in the premixing section 4.

[0056] In the projection along the material conveying direction, the radial outer edge projection range of the first gear tooth 322 falls within the radial outer edge projection range of the second gear tooth 331. The radial outer edge projection range of the first channel 323 falls within the radial outer edge projection range of the second channel 332; the radial inner edge projection range of the first channel 323 falls within the radial inner edge projection range of the second channel 332; the first gear tooth 322 corresponds to the second gear tooth 331 in the axial direction, thereby improving the stability of the operation process of the first gear tooth 322 cooperating with the second gear tooth 331 to split and distribute the material. At the same time, this arrangement method is conducive to reducing the required assembly space and making the structure more compact.

[0057] The number of teeth set on the first gear teeth 322 is not equal to the number of teeth set on the second gear teeth 331. The number of teeth of the homogenizing rotor 32 and the number of teeth of the diverter gear stator 33 are different, ensuring that the flow channel will not be closed for a short time due to the same number of teeth during the rotation of the homogenizing rotor 32, and the internal pressure of the reactor will not increase instantly. It should be emphasized that the ratio of the number of teeth can be appropriately adjusted according to the actual flow demand during the production process, and no specific ratio of the number of teeth is limited here.

[0058] The distribution section 3 also includes a first liquid inlet cavity 34, which is connected to the first cavity 31. The first liquid inlet cavity 34 is provided with a continuous phase feed port 341 that is connected to the first cavity and the outside of the reactor body 1 for feeding; wherein the end of the first liquid inlet cavity 34 along the material flow direction is connected to the homogenizing rotor 32. The rotating shaft 2 passes through the first liquid inlet cavity 34 and the first cavity 31. The first cavity 31 is provided to provide a channel for continuous phase feeding, and at the same time separates the feed from the premixing section 4 for independent feeding, so as to cooperate with the subsequent splitting of the continuous phase into multiple fine liquid fractions, and then mix with the dispersed phase of the premixing section 4 to achieve a mixing effect in a small range. The continuous phase feed port is the continuous phase material inlet, which is composed of a liquid delivery chamber, a homogenizing rotor, and a diverter gear stator. After the continuous phase liquid is delivered into the reactor from the interface, it first passes through the first liquid inlet chamber, then passes through the homogenizing rotor, and then flows through the diverter gear stator, and the continuous liquid is divided into multiple uniform fine liquid fractions and then transported to the rear end. The homogenizing rotor is connected to the rotating shaft. During the transportation process, the rotation of the homogenizing rotor can ensure that the flow rate distributed to each flow channel of the gear stator per unit time is consistent.

[0059] The multi-channel homogenizing rotor 42 includes a second connecting end 421 connected to the rotating shaft 2, a third gear tooth 422 arranged on the second connecting end 421, and a connecting channel 423 that passes through the second connecting end 421 and the third gear tooth 422 and connects to the outside of the multi-channel homogenizing rotor 42, and the connecting channel 423 is connected to the inside of the rotating shaft 2. Specifically, the connecting channel 423 is connected to the second channel 332, and the third channel 424 is arranged between the third gear teeth 422, and the third channel 424 is connected to the second channel 332; a second connecting end 421 connected to the rotating shaft 2 is arranged, so that the second connecting end 421 can rotate under the drive of the rotating shaft 2, and at the same time, the third gear teeth 422 are arranged on the second connecting end 421, so that the third gear teeth 422 are in a state driven by the rotating shaft 2, thereby the connecting channel 423 passing through the third gear teeth 422 is used to transport the dispersed phase, so that the dispersed phase can be transported to the ends of each tooth of the third gear teeth 422 under the action of rotation, so as to continuously meet with the multiple fine liquids split at the front end, so as to achieve small-scale mixing of the continuous phase and the dispersed phase; at the same time, the reaction liquid is fully mixed under the state of rotation shearing of the third gear teeth 422, so as to increase the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale.

[0060] The communication channel 423 includes a first flow passage 425 penetrating the second connection end 421, and a second flow passage 426 communicating with the first flow passage 425 and communicating with the outside of the multi-channel homogenizing rotor 42. The second flow passage 426 is arranged through the third gear 422, and a third flow passage 21 communicating with the first flow passage 425 is arranged inside the rotating shaft 2. The second flow passage 426 is connected to the second channel 332; the feed is carried out through the third flow passage 21, so as to be transported to the first flow passage 425 and the second flow passage 426, so as to be output to the external second cavity 41 for premixing with the material after being split and diverted by the diverting gear stator 33; the first flow passage 425 is arranged perpendicular to the third flow passage 21; the rotating shaft is provided with the third flow passage 21, and the third flow passage 21 is communicated with the first flow passage 425, so that the dispersed phase can pass through the rotating shaft 2 One end enters the third flow passage 21, and is then transported to the first flow passage 425 and the second flow passage 426, so that the dispersed phase is evenly transported to the ends of each tooth of the third gear tooth 422. The structure requires less space, and at the same time, the second flow passage 426 is in a penetrating state at the end of the third gear tooth 422, so that the ends of each tooth of the third gear tooth 422 are the discharge ends, so that the material output to the outside by the third gear tooth 422 during the rotation process is more uniform, which is convenient for small-scale mixing with the continuous phase of uniform multiple fine liquid separations, so that the mixing state is more uniform.

[0061] Along the material transmission direction, the second flow passage 426 is arranged to penetrate each third gear tooth 422 in one or more directions of the forward direction, the reverse direction, and the radial direction. In the present technical solution, the second flow passage 426 is arranged to penetrate each third gear tooth 422 in the forward direction, the reverse direction, and the radial direction; so that the end of the third gear tooth 422 is provided with multiple discharge ports, which is convenient for small-scale mixing of materials;

[0062] The first flow passage 425 is disposed in the radial direction of the second connection end 421 and is in communication with the second flow passage 426;

[0063] The first flow passage 425 includes a flow port 4251 communicating with the third flow passage 21 , a flow ring 4252 communicating with the flow port 4251 , and flow branches 4253 communicating with the flow ring 4252 and each of the second flow passages 426 . The flow port 4251 is radially arranged in the second connecting end 421, and 4 are arranged in the technical solution, which are evenly distributed in the circumferential direction with the axis of the rotating shaft 2 as the center; the flow port 4251, the flow ring 4252, and the flow branch 4253 are arranged so that the material from the third flow channel 21 enters through the flow port 4251 and then passes through the flow ring 4252, and the flow ring 4252 is connected with each flow branch 4253, so as to facilitate the distribution of the dispersed phase to each tooth end of the third gear tooth; the dispersed phase feed port is a dispersed phase material feed port, which is composed of a rotary joint, a rotating shaft, and a dispersed phase multi-channel homogenizing rotor to form a flow channel for conveying dispersed phase liquid, and the dispersed phase liquid is connected by the rotary joint, and the rotary joint ensures that the liquid can be smoothly conveyed when the rotating shaft rotates; the rotating shaft is a semi-hollow structure, and a small hole is opened at the end to deliver the liquid to the inner groove of the dispersed phase multi-channel homogenizing rotor, and each tooth of the dispersed phase multi-channel homogenizing rotor is provided with a small hole connected to the groove, so that the liquid can be evenly delivered to the end of each tooth.

[0064] The premixing section 4 also includes a first homogenizing stator 43 disposed in the second cavity 41, and the first homogenizing stator 43 is disposed on the side of the multi-channel homogenizing rotor 42 away from the diverter gear stator 33. Projected along the axial direction of the rotating shaft 2, the radial outer edge projection surface of the third gear teeth 422 falls into the radial outer edge projection surface of the first homogenizing stator 43 gear teeth. The radial inner edge projection surface of the third gear teeth 422 falls into the radial inner edge projection surface of the first homogenizing stator 43 gear teeth. The first homogenizing stator 43 is arranged to fully mix the reaction liquid under the state of rotating shear of the third gear teeth 422, thereby increasing the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale.

[0065] The rotating shaft 2 is connected to a rotating joint 22 for feeding, wherein the rotating joint 22 is connected to the third flow channel 21. The rotating joint 22 is provided with a dispersed phase feed port to provide a channel for dispersed phase feeding; the dispersed phase liquid is connected to the rotating joint 22, and the rotating joint 22 ensures that the liquid can be smoothly transported when the rotating shaft 21 rotates.

[0066] The reactor body 1 further includes one or more mixing sections 5 arranged on one side of the premixing section 4; the mixing section 5 includes a third cavity 51, a mixing homogenizing rotor 52, and a mixing homogenizing stator 53, wherein the mixing homogenizing rotor 52 and the mixing homogenizing stator 53 are coaxially arranged in the third cavity 51 in sequence along the material conveying direction. The inner surface of the third cavity 51 matches the outer edge of the mixing homogenizing rotor 52; the mixing homogenizing rotor 52 is connected to the rotating shaft 2 for rotating mixing operation; the mixing section 5 is arranged on one side of the premixing section 4 along the material conveying direction. When projected along the material conveying direction, the radial outer edge projection surface of the gear teeth of the mixing homogenizing rotor 52 falls within the range of the radial outer edge projection surface of the gear teeth of the mixing homogenizing stator 53. The radial inner edge projection surface of the gear teeth of the mixing homogenizing rotor 52 falls within the range of the radial inner edge projection surface of the gear teeth of the mixing homogenizing stator 53. The mixing homogenizing rotor 52 is connected to the rotating shaft 2 on the same axis, so that the mixing homogenizing rotor 52 can be rotated by the driving action of the rotating shaft, thereby cooperating with the adjacently arranged mixing homogenizing stator 53, and the shear between the fixed teeth and the rotating teeth makes the reaction liquid fully mixed, and increases the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale. At the same time, the length of the dynamic tubular reactor can also be increased or decreased according to actual needs, as long as the corresponding number of stators and rotors is adjusted, such as adjusting the number of mixing sections 5, and then realized, and its operation freedom is relatively high.

[0067] The reactor body 1 also includes one or more extended multiphase sections 6 arranged on one side of the premixing section 4; the extended multiphase section 6 includes a fourth cavity 61, an extended homogenizing rotor 62, and an extended homogenizing stator 63, wherein the extended homogenizing rotor 62 and the extended homogenizing stator 63 are coaxially arranged in the fourth cavity 61 in sequence along the material conveying direction, and the extended homogenizing stator 62 is provided with a fourth flow passage 631 connecting the fourth cavity 61 and the outside of the reactor body 1. The inner surface of the fourth cavity 61 matches the outer edge of the extended homogenizing rotor 62; the extended homogenizing rotor 62 is connected to the rotating shaft 2 for rotational mixing; the fourth flow passage 631 is transversely penetrated through the extended homogenizing stator 63 and is connected to the outside of the reactor body 1. Specifically, the fourth cavity 61 is provided with an extended multiphase feed port 611 connected to the fourth flow passage 631; the extended multiphase section 6 is arranged on one side of the premixing section 4 along the material conveying direction. When projected in the material conveying direction, the radial outer edge projection surface of the gear teeth of the extended homogenizing rotor 62 falls within the radial outer edge projection surface of the gear teeth of the extended homogenizing stator 63. The radial inner edge projection surface of the gear teeth of the extended homogenizing rotor 62 falls within the radial inner edge projection surface of the gear teeth of the extended homogenizing stator 63. In the technical solution, the distribution section 3, the premixing section 4, the mixing section 5, the extended multiphase section 6, and the plurality of mixing sections 5 are arranged in sequence. Each section is coaxially connected and a sealing ring 10 is provided between each section to improve the sealing degree; an extended multiphase section is provided to facilitate the mixing reaction between multiple materials, and the device can accommodate a wider number of materials. At the same time, the extended multiphase section in the technical solution is modularly provided, and the number of corresponding settings can be adjusted according to the needs of different types of materials; the extended homogenizing stator 63 is provided with a fourth flow passage 631 to facilitate the transportation of materials. After the material enters the extended homogenizing stator 63, it flows into the reactor through the fourth flow passage 631, and under the shear of the extended homogenizing rotor 62, the fluid is quickly and evenly cut into fine components, and then quickly mixed and evenly under the shear of the extended homogenizing rotor 62 and the extended homogenizing stator 63, and the mixing homogenizing rotor 52 and the mixing homogenizing stator 53. The multiphase material inlet 611 and its related components can be added and replaced according to the actual reaction requirements, providing convenient conditions for the flexible use of the reactor; the multiphase material inlet and its related components can be added and replaced according to the actual reaction requirements, providing convenient conditions for the flexible use of the reactor. The extended multiphase feed port is an extended multiphase material feed port, which is composed of a joint, an extended homogenizing stator and an extended homogenizing rotor. The extended homogenizing stator is provided with a flow channel and a small hole. After the material enters the extended homogenizing stator from the joint, it flows into the reactor through the small hole, and under the shear of the extended homogenizing rotor, the fluid is quickly and evenly cut into fine components, and then quickly mixed and evenly under the shear of the extended homogenizing stator and the extended homogenizing rotor. The multiphase material inlet and its related components can be added and replaced according to the actual reaction requirements, providing convenient conditions for the flexible use of the reactor.

[0068] The extended multiphase section 6 is set to a corresponding number according to the actual number of reaction phases, based on the setting of the distribution section 3 and the premixing section 4. If it is a two-phase reaction, the extended multiphase section 6 is set to 0; if it is a three-phase reaction, the extended multiphase section 6 is set to 1; if it is a four-phase feed reaction, the extended multiphase section 6 is set to 2; and so on, the corresponding number is set accordingly.

[0069] A discharge port 7 is provided on a side of the reactor body 1 away from the distribution section 3;

[0070] A first supporting block 11 and a second supporting block 12 are respectively arranged at both ends of the reactor body 1, the first liquid inlet cavity 34 is arranged in the first supporting block 11, and the discharge port 7 is arranged on the second supporting block 12, wherein the second supporting block 12 is arranged on one side of the last mixing section 5 and at the end of the reactor body 1.

[0071] The rotating shaft 2 passes through the first bearing block 11 and the second bearing block 12 , and a mechanical seal, a bearing, and a retaining ring coaxially connected to the rotating shaft are disposed inside the first bearing block 11 and the second bearing block 12 .

[0072] One or more temperature control modules 8 are arranged on the outer surface of the reactor body 1. In the technical solution, multiple temperature control modules 8 are arranged, wherein the temperature control modules can adopt two modes of electric heating and cooling liquid cooling, and the tubular reactor has heating and cooling functions through heat exchange; the temperature control module 8 is in contact with the surface of the reactor body 1, and is arranged on one or more sections of the distribution section 3, the premixing section 4, the mixing section, and the extended multiphase section according to actual needs.

[0073] The reactor body 1 is connected to a frame 13, on which a motor 131 is disposed, and the motor 131 is connected to the rotating shaft 2. Specifically, the frame 13 is connected to the first bearing block 11 and the second bearing block 12; the motor 131 is connected to the rotating shaft 2 via a transmission belt 132.

[0074] The main body of the dynamic reactor consists of left and right end covers, namely the first load-bearing block, the second load-bearing block, bearings, mechanical seals, a rotating shaft, and multiple sets of stators and rotors. The rotor rotates driven by the motor and shears and stirs the liquid with each set of stators, so that the reaction liquid reacts in micro-sized droplets, thereby enhancing mass transfer.

[0075] The dynamic reactor of the present technical solution is provided with an independent temperature control module. The temperature control module can adopt electric heating, and can independently control the temperature of each position of the reactor in sections, and can perform gradient temperature control on the reactor according to experimental requirements.

[0076] In the technical solution, the number of teeth between each rotor and the adjacent stator is different, a channel for liquid transmission is set between the two teeth, and the differential teeth are set to ensure that there is no pressure build-up in the dynamic tubular reactor. There is a gap for liquid to flow in the reactor at any time. If the number of teeth is the same, there will be a time when it is completely closed.

[0077] This technical solution focuses on the research and development of the uneven mixing problem existing in the current dynamic tubular reactor. It adopts an innovative structural design and uses diversion technology to make different reaction liquids separate and achieve small-scale mixing first; then use the shear between the fixed teeth and the rotating teeth to fully mix the reaction liquids, increase the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale; it can realize multi-phase feeding, and the modular design can flexibly adjust the number of feed phases according to actual needs; the reactor adopts segmented temperature control, which can achieve the temperature control requirements of different mixing stages and realize gradient temperature control.

[0078] The small unit uniform feeding of the continuous phase and the dispersed phase is realized so that the materials can be mixed in smaller units first and then fully mixed with the shear reaction liquid, thereby increasing the contact area and mixing effect of the materials, thereby greatly improving the reaction rate, and accurately controlling the control, mixing, reaction and other processes of the fluid at a microscale; multiphase feeding can be realized, and the number of feeding phases can be flexibly adjusted according to actual needs by adopting a modular design; the reactor adopts segmented temperature control, which can realize the temperature control requirements of different mixing stages and realize gradient temperature control. The implementation of the present invention will provide a dynamic tubular reactor with more complete reactions and more comprehensive functionality for related reactions.

[0079] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0081] The above is a detailed description of an embodiment of an active multiphase feed dynamic tubular reactor provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention, and the description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An active multiphase feeding dynamic tubular reactor, characterized in that: The invention comprises a reactor body (1) and a rotating shaft (2) arranged through the reactor body (1); the reactor body (1) comprises a distribution section (3) arranged adjacent to each other in sequence for splitting and diverting materials, and a premixing section (4) for feeding materials and premixing the split and diverted materials.

2. The active multiphase feeding dynamic tubular reactor according to claim 1, characterized in that: The distribution section (3) comprises a first cavity (31), a homogenizing rotor (32) coaxially connected to the rotating shaft (1), and a flow dividing gear stator (33) coaxially arranged on one side of the homogenizing rotor (32); the homogenizing rotor (32) and the flow dividing gear stator (33) are both arranged in the first cavity (31); The premixing section (4) comprises a second cavity (41), and a multi-channel homogenizing rotor (42) coaxially arranged on a side of the splitter gear stator (33) away from the homogenizing rotor (32), the multi-channel homogenizing rotor (42) being coaxially connected to the rotating shaft (2), and the multi-channel homogenizing rotor (42) being coaxially arranged in the second cavity (41).

3. The active multiphase feeding dynamic tubular reactor according to claim 2, characterized in that: The homogenizing rotor (32) comprises a first connecting end (321) connected to the rotating shaft (2), and first gear teeth (322) arranged on the first connecting end (321), and a first channel (323) is arranged between the first gear teeth (322); The splitter gear stator (33) comprises second gear teeth (331) connected to the first cavity (31), and a second channel (332) is provided between the second gear teeth (331).

4. The active multiphase feeding dynamic tubular reactor according to claim 2, characterized in that: The distribution section (3) further comprises a first liquid inlet cavity (34), wherein the first liquid inlet cavity (34) is in communication with the first cavity (31).

5. The active multiphase feeding dynamic tubular reactor according to any one of claims 2 to 4, characterized in that: The multi-channel homogenizing rotor (42) comprises a second connecting end (421) connected to the rotating shaft (2), a third gear tooth (422) arranged on the second connecting end (421), and a connecting channel (423) penetrating the second connecting end (421) and the third gear tooth (422) and connected to the outside of the multi-channel homogenizing rotor (42), wherein the connecting channel (423) is connected to the inside of the rotating shaft (2).

6. The active multiphase feeding dynamic tubular reactor according to claim 5, characterized in that: The connecting passage (423) comprises a first flow passage (425) penetrating the second connecting end (421), a second flow passage (426) communicating with the first flow passage (425) and communicating with the outside of the multi-channel homogenizing rotor (42), the second flow passage (426) penetrating the third gear teeth (422), and a third flow passage (21) communicating with the first flow passage (425) being arranged inside the rotating shaft (2).

7. The active multiphase feeding dynamic tubular reactor according to claim 5, characterized in that: The premixing section (4) further comprises a first homogenizing stator (43) arranged in the second cavity (41), wherein the first homogenizing stator (43) is arranged on a side of the multi-channel homogenizing rotor (42) away from the splitter gear stator (33).

8. The active multiphase feeding dynamic tubular reactor according to claim 2, characterized in that: The reactor body (1) further comprises one or more mixing sections (5) arranged on one side of the premixing section (4); the mixing section (5) comprises a third cavity (51), a mixing homogenizing rotor (52), and a mixing homogenizing stator (53); the mixing homogenizing rotor (52) and the mixing homogenizing stator (53) are coaxially arranged in the third cavity (51) in sequence along the material conveying direction.

9. The active multiphase feeding dynamic tubular reactor according to claim 8, characterized in that: The reactor body (1) further comprises one or more extended multiphase sections (6) arranged on one side of the premixing section (4); the extended multiphase section (6) comprises a fourth cavity (61), an extended homogenizing rotor (62), and an extended homogenizing stator (63); the extended homogenizing rotor (62) and the extended homogenizing stator (63) are coaxially arranged in the fourth cavity (61) in sequence along the material conveying direction; the extended homogenizing stator (62) is provided with a fourth flow passage (631) connecting the fourth cavity (61) and the outside of the reactor body (1).

10. The active multiphase feeding dynamic tubular reactor according to claim 1, characterized in that: A discharge port (7) is arranged on a side of the reactor body (1) away from the distribution section (3); A first bearing block (11) and a second bearing block (12) are respectively arranged at two ends of the reactor body (1), the first liquid inlet cavity (34) is arranged in the first bearing block (11), and the discharge port (7) is arranged on the second bearing block (12), wherein the second bearing block (12) is arranged on one side of the last mixing section (5) and is located at the end of the reactor body (1); One or more temperature control modules (8) are arranged on the outer surface of the reactor body (1); The reactor body (1) is connected to a frame (13), a motor (131) is arranged on the frame (13), and the motor (131) is drivingly connected to a rotating shaft (2).

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