Micro-reaction device and micro-reaction system

Abstract

The utility model discloses a micro-reaction device and a micro-reaction system, relates to the technical field of micro-reaction industrial production, and aims to solve the problems that a micro-reactor is only suitable for one reaction, low in universality and high in production cost. The micro-reaction device comprises a raw material conveying unit, a first reaction liquid switch, a second reaction liquid switch, a raw material reaction unit and a product collecting unit, an outlet of the raw material conveying unit is connected with an inlet of the raw material reaction unit through a first reaction liquid switch; an outlet of the raw material reaction unit is connected with an inlet of the product collecting unit through a second reaction liquid switch; wherein the raw material reaction unit comprises a plurality of raw material sub-reaction units, and every two adjacent raw material sub-reaction units are connected in series. The micro-reaction system comprises the micro-reaction device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of micro-reaction industrial production, and in particular to a micro-reaction device and a micro-reaction system. BACKGROUND

[0002] A micro-reactor is a reactor with a feature size of 10 microns to 1000 microns manufactured by using precision machining technology. The "micro" of the micro-reactor means that the channel of the process fluid is in the micron level. Compared with the traditional reactor, the micro-reactor can control the reaction conditions more accurately and control the product quality more outstandingly.

[0003] At present, the micro-reactor is often only suitable for one reaction, and has low universality, which is not conducive to reducing production cost. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a micro-reaction device and a micro-reaction system, so as to be suitable for multiple reactions, improve the universality of the micro-reaction device, and reduce the production cost.

[0005] In a first aspect, the present application provides a micro-reaction device, comprising:

[0006] A raw material conveying unit, a first reaction liquid switch, a second reaction liquid switch, a raw material reaction unit, and a product collecting unit; the outlet of the raw material conveying unit is connected with the inlet of the raw material reaction unit through the first reaction liquid switch, and the outlet of the raw material reaction unit is connected with the inlet of the product collecting unit through the second reaction liquid switch.

[0007] The raw material reaction unit comprises a plurality of raw material sub-reaction units, and adjacent two raw material sub-reaction units are connected in series.

[0008] Compared with the prior art, the micro-reaction device provided by the present application comprises a raw material conveying unit, a first reaction liquid switch, a second reaction liquid switch, a raw material reaction unit, and a product collecting unit, wherein the outlet of the raw material conveying unit is connected with the inlet of the raw material reaction unit through the first reaction liquid switch, and the outlet of the raw material reaction unit is connected with the inlet of the product collecting unit through the second reaction liquid switch. Therefore, the raw material can enter the inlet of the raw material reaction unit through the first reaction liquid switch from the outlet of the raw material conveying unit for mixing and sufficient reaction, and the product generated after the reaction ends enters the inlet of the product collecting unit from the outlet of the raw material reaction unit for collection.

[0009] On this basis, the raw material reaction unit provided in the application comprises a plurality of raw material sub-reaction units, and two adjacent raw material sub-reaction units are connected in series, so that, after the raw material can enter the inlet of the raw material reaction unit from the outlet of the raw material conveying unit through the first reaction liquid switch, a plurality of continuous reactions can be sequentially performed in each raw material sub-reaction unit, thereby improving the universality of the micro-reaction device and reducing the production cost.

[0010] In a second aspect, the application provides a micro-reaction system comprising the micro-reaction device described above.

[0011] Compared with the prior art, the micro-reaction system provided in the application has the same beneficial effects as the micro-reaction device provided in the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings described herein are used to provide further understanding of the application, constitute a part of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0013] Figure 1 The structure schematic diagram of the micro-reaction device provided in the embodiments of the application is shown;

[0014] Figure 2 The schematic diagram of the micro-reaction system provided in the embodiments of the application is shown.

[0015] Reference signs:

[0016] 100-raw material conveying unit; 101-raw material sub-conveying unit; 1011-first raw material storage part; G-temperature pre-treatment pipeline; 200-raw material reaction unit; 201-raw material sub-reaction unit; 2011-reaction tube with a first pipe diameter; 2012-reaction tube with a second pipe diameter; 300-product collection unit; 400-first raw material supplement assembly; 401-second raw material storage part; 500-second raw material supplement assembly; 600-first alarm; 700-tail gas treatment unit; 800-second alarm; F1-first reaction liquid switch; F2-second reaction liquid switch; D-feeding switch; F3-third reaction liquid switch; F4-fourth reaction liquid switch; J-supplement feeding switch; S-product collection switch; B1-first pressure switch; B2-second pressure switch; B3-third pressure switch; P1-first feeding parameter detection assembly; P11-pressure sensor; P12-flow meter; P2-second feeding parameter detection assembly; H-discharge parameter detection assembly; I-total feeding switch; E1-first reaction liquid detection assembly; E2-second reaction liquid detection assembly; C-product detection assembly and W-tail gas detection assembly. DETAILED DESCRIPTION

[0017] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, further detailed description will be given below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, and not to limit the present application.

[0018] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0019] In addition, the terms "first", "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited. The meaning of "several" is one or more, unless otherwise explicitly and specifically limited.

[0020] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] In order to solve the problem that the micro-reactor is only suitable for one reaction and has low universality and high production cost, the present application provides a micro-reaction device suitable for multiple reactions, improves the universality of the micro-reaction device, and reduces the production cost. Figure 1 The structure of the micro-reaction device provided by the embodiment of the present application is shown. As shown in Figure 1 The micro-reaction device includes a raw material conveying unit 100, a first reaction liquid switch F1, a second reaction liquid switch F2, a raw material reaction unit 200, and a product collection unit 300. The outlet of the raw material conveying unit 100 is connected to the inlet of the raw material reaction unit through the first reaction liquid switch F1, and the outlet of the raw material reaction unit 200 is connected to the inlet of the product collection unit 300 through the second reaction liquid switch F2. The raw material reaction unit 200 includes a plurality of raw material sub-reaction units 201, and adjacent two raw material sub-reaction units 201 are connected in series.

[0022] In the embodiment, the raw materials can be mixed and fully reacted in the inlet of the raw material reaction unit 200 from the outlet of the raw material conveying unit 100 through the first reaction liquid switch F1, and the products generated after the reaction end can be collected in the inlet of the product collection unit 300 from the outlet of the raw material reaction unit 200 through the second reaction liquid switch F2. On this basis, since the raw material reaction unit includes a plurality of raw material sub-reaction units, and two adjacent raw material sub-reaction units are connected in series, after the raw materials can enter the inlet of the raw material reaction unit from the outlet of the raw material conveying unit 100 through the first reaction liquid switch F1, a plurality of continuous reactions can be sequentially performed in each raw material sub-reaction unit 201, thereby being applicable to a variety of reactions, improving the universality of the micro-reaction device, and reducing the production cost.

[0023] In an alternative way, as shown in Figure 1 The raw material conveying unit 100 in the application includes a plurality of raw material sub-conveying units 101, and each raw material sub-conveying unit 101 is connected in parallel. Each raw material sub-conveying unit 101 includes a first raw material storage part 1011, a first feed parameter detection assembly P1, a feed switch D, and a temperature pretreatment pipeline G. The first feed parameter detection assembly P1 and the feed switch D are connected in series between the outlet of the first raw material storage part 1011 and the inlet of the temperature pretreatment pipeline G, and the outlet of the temperature pretreatment pipeline G is connected with the inlet of the first reaction liquid switch F1. Therefore, each raw material can be mixed and fully reacted in the inlet of the raw material reaction unit 200 from the outlet of the corresponding raw material sub-conveying unit 101 through the inlet of the first reaction liquid switch F1, so as to generate a reaction liquid meeting the expected standard. In addition, the temperature pretreatment pipeline G in the application can preheat or precool the raw materials after adjusting the feed parameters, so as to meet the reaction conditions of the raw materials.

[0024] In the embodiment, the raw materials can be mixed and fully reacted in the inlet of the raw material reaction unit 200 from the outlet of the raw material conveying unit 100 through the first reaction liquid switch F1, and the products generated after the reaction end can be collected in the inlet of the product collection unit 300 from the outlet of the raw material reaction unit 200 through the second reaction liquid switch F2. On this basis, since the raw material reaction unit includes a plurality of raw material sub-reaction units, and two adjacent raw material sub-reaction units are connected in series, after the raw materials can enter the inlet of the raw material reaction unit from the outlet of the raw material conveying unit 100 through the first reaction liquid switch F1, a plurality of continuous reactions can be sequentially performed in each raw material sub-reaction unit 201, thereby being applicable to a variety of reactions, improving the universality of the micro-reaction device, and reducing the production cost.

[0025] It can be understood that the micro reaction device in the application further comprises a total feed switch I, which is arranged between the outlet of the raw material conveying unit 100 and the inlet of the first reaction liquid switch F1. Specifically, the total feed switch I is arranged at the outlet convergence of each raw material sub-conveying unit 101. At the beginning of the reaction, the raw material can flow from the outlet of the raw material conveying unit 100 to the inlet of the first reaction liquid switch F1 by turning on the total feed switch I, and the raw material can pass through the total feed switch I.

[0026] It should be noted that if there is a solid component in the reaction, a feed assembly of the solid component can be further added in the micro reaction device, which can be adjusted according to the actual situation, and is not limited here.

[0027] For example, as shown in Figure 1 The first feed parameter detection assembly P1 in the application comprises a pressure sensor P11 and a flow meter P12, wherein the pressure sensor P11 and the flow meter P12 are arranged between the outlet of the first raw material storage part 1011 and the inlet of the feed switch D in sequence. When the pressure and flow of the corresponding raw material detected by the pressure sensor P11 and the flow meter P12 do not meet the reaction condition, the opening degree of the feed switch D can be adjusted to achieve the purpose of controlling the reaction condition.

[0028] For example, when the pressure sensor P11 detects that the feed pressure of the corresponding raw material is too large, the opening degree of the feed switch D can be increased to achieve the purpose of reducing the feed pressure; when the pressure sensor P11 detects that the feed pressure of the corresponding raw material is too small, the opening degree of the feed switch D can be reduced to achieve the purpose of increasing the feed pressure.

[0029] For another example, when the flow meter P12 detects that the flow of the corresponding raw material is too large, the opening degree of the feed switch D can be reduced to achieve the purpose of reducing the feed flow; when the flow meter P12 detects that the flow of the corresponding raw material is too small, the opening degree of the feed switch D can be increased to achieve the purpose of increasing the feed flow.

[0030] In an alternative way, as shown in Figure 1As shown, each raw material sub-reaction unit 201 in the present application comprises a first-diameter reaction tube 2011 and a second-diameter reaction tube 2012 connected in parallel with the first-diameter reaction tube 2011, wherein the first-diameter reaction tube 2011 and the second-diameter reaction tube 2012 have converging inlets and outlets, and the raw material reaction unit 200 further comprises a plurality of third reaction liquid switches F3, two adjacent raw material sub-reaction units are connected through the third reaction liquid switch F3, two adjacent third reaction liquid switches F3 are connected in parallel, and the third reaction liquid switch F3 is connected in parallel with the second reaction liquid switch F2. It can be understood that, in order to converge the inlets and outlets of the first-diameter reaction tube 2011 and the second-diameter reaction tube 2012, a fourth reaction liquid switch F4 can be arranged at the converging position of the reaction tubes.

[0031] In a specific embodiment, the raw material can be introduced into the first-diameter reaction tube 2011 and the second-diameter reaction tube 2012 through the first reaction liquid switch F1 respectively, and the ratio of the diameters of the reaction tubes can be taken as a variable to compare the reaction of the raw material under different diameters. Meanwhile, the first-diameter reaction tube 2011 and the second-diameter reaction tube 2012 have converging inlets and outlets, the raw material reaction unit 200 further comprises a plurality of third reaction liquid switches F3, and two adjacent raw material sub-reaction units are connected through the third reaction liquid switch F3. Therefore, when each third reaction liquid switch F3 is turned on, the reaction liquid can continuously react in a plurality of raw material sub-reaction units, which not only can determine the factor that has the greatest impact on the reaction and the optimal reaction condition, but also can be used for verification of the reaction mechanism.

[0032] In another specific embodiment, the first-diameter reaction tube 2011 and the second-diameter reaction tube 2012 have converging outlets, the raw material reaction unit 200 further comprises a plurality of third reaction liquid switches F3, and two adjacent raw material sub-reaction units are connected through the third reaction liquid switch F3. Therefore, the first reaction liquid switch F1 can be used to make the raw material only pass into the first-diameter reaction tube 2011, and then the plurality of third reaction liquid switches F3 are opened to make the raw material continuously react in a plurality of first-diameter reaction tubes 2011. Since two adjacent third reaction liquid switches F3 are connected in parallel, the reaction under the condition of taking the length of the reaction tube as a variable can be explored by controlling the opening and closing of the corresponding third reaction liquid switch F3, which not only can determine the factor that has the greatest impact on the reaction and the optimal reaction condition, but also can be used for verification of the reaction mechanism.

[0033] In practical application, for the reaction A(g)+B(l)→C(l), if the influence of which reaction factor (for example, reaction pressure, reaction tube length and reaction tube diameter) most influences the test result reaction temperature under certain reaction ratio is to be investigated, each reaction factor can be set as 3 variables, and the experiment is executed after the test mode is selected. Through comprehensive analysis of the results, the reaction factor which most influences the reaction can be determined, and the optimal reaction condition can be determined.

[0034] Similarly, for the 3-step reaction A(l)+B(l)→C(l), C(l)+D(l)→E(l), E(l)+F(l)→G(l), if the influence of which reaction factor (for example, reaction pressure, reaction tube length and reaction tube diameter) most influences the test result reaction temperature under certain reaction ratio is to be investigated, each reaction factor can be set as 3 variables, the experiment is executed after the test mode is selected, and the optimal reaction condition of each step reaction is determined in turn, so that the optimal reaction condition of the target product generated in the continuous reaction is determined.

[0035] The micro-reaction device in the application further comprises a plurality of first pressure switches B1, each first pressure switch B1 is arranged between the outlet of the raw material sub-reaction unit 201 and the inlet of the third reaction liquid switch F3, so as to control the pressure of the raw material sub-reaction unit 201. When the pressure of the reaction liquid is greater than the preset value, the pressure of the reaction liquid can be reduced by increasing the opening degree of the first pressure switch B1; when the pressure of the reaction liquid is less than the preset value, the pressure of the reaction liquid can be increased by reducing the opening degree of the first pressure switch B1. It can be seen that the application can flexibly adjust the reaction factors (for example, reaction temperature and reaction pressure) for different reactions in multi-step reaction, and is suitable for multi-step reaction and expands the applicable reaction range.

[0036] For example, the micro-reaction device in the application further comprises a second pressure switch B2, which is arranged between the outlet of the raw material reaction unit 200 and the inlet of the second reaction liquid switch F2, and is also used to adjust the pressure of the reaction liquid.

[0037] In an alternative way, as Figure 1As shown, the micro-reactor in the present application further comprises a first raw material supplementing assembly 400, which is arranged between the outlet of the second reaction liquid switch F2 and the inlet of the product collecting unit 300. The first raw material supplementing assembly 400 comprises a second raw material storage part 401, a second feed parameter detecting assembly P2 and a feed supplementing switch J, the outlet of the second raw material storage part 401 is connected with the outlet of the second reaction liquid switch F2 through the feed supplementing switch J, and the second feed parameter detecting assembly P2 is arranged between the outlet of the second raw material storage part 401 and the inlet of the feed supplementing switch J. It can be seen that the catalyst, the auxiliary agent and the quenching agent can be added to the reaction system flexibly to realize the accurate control of the reaction.

[0038] In specific implementation, the auxiliary agent required by the reaction can be poured into the outlet of the second reaction liquid switch F2 from the outlet of the second raw material storage part 401 through the feed supplementing switch J, so as to fully react with the reaction liquid flowing out from the outlet of the raw material reaction unit 200, thereby realizing the accurate control of the reaction and ensuring that the product meeting the expected effect can be prepared. Similarly, in order to accurately control the reaction condition, the second feed parameter detecting assembly P2 is arranged between the outlet of the second raw material storage part 401 and the inlet of the feed supplementing switch J, and the opening degree of the feed supplementing switch J can be adjusted according to the feed parameter detected by the second feed parameter detecting assembly P2.

[0039] For example, the micro-reactor in the present application further comprises a discharge parameter detecting assembly H, which is arranged between the outlet of the first raw material supplementing assembly 400 and the inlet of the product collecting unit 300, so as to detect the parameters of the reaction liquid. When the discharge parameter detecting assembly H comprises a pressure sensor and a flow meter, it is helpful to adjust and monitor the flow and pressure in the whole reaction system. If the detected flow and pressure do not meet the expectation, the flow and pressure of the reaction liquid can be adjusted by adjusting the switch (for example, the first pressure switch B1 and the second pressure switch B2).

[0040] For example, as shown, Figure 1 The micro-reactor in the present application further comprises a first reaction liquid detecting assembly E1, which is arranged between the outlet of the second reaction liquid switch F2 and the outlet of the first raw material supplementing assembly 400. Therefore, the first reaction liquid detecting assembly E1 can be used to detect the reaction liquid, and the supplementing amount of the raw material can be adjusted according to the detection result, which is helpful to realize the accurate control of the reaction. The first reaction liquid detecting assembly E1 in the present application can comprise an infrared viscometer, a solid content detecting meter and a temperature sensor, and can further comprise other assemblies capable of detecting the performance of the reaction liquid, which can be adjusted according to the actual situation and is not limited herein.

[0041] In actual application, when the reaction liquid flows out of the outlet of the raw material reaction unit, the viscosity of the reaction liquid can be detected by the infrared viscometer, and the reaction conditions of the reaction system can be adjusted and controlled according to the detection result, so as to prepare the product meeting the expected effect.

[0042] For example, when the reaction liquid flows out of the outlet of the raw material reaction unit, if the infrared viscometer detects that the viscosity of the reaction liquid is lower than the preset value, the viscosity of the reaction liquid can be increased by reducing the temperature; if the infrared viscometer detects that the viscosity of the reaction liquid is higher than the preset value, the viscosity of the reaction liquid can be reduced by increasing the temperature.

[0043] For another example, when the reaction liquid flows out of the outlet of the raw material reaction unit, if the infrared viscometer detects that the viscosity of the reaction liquid is higher than the preset value, the raw material (for example, the reaction solvent) can be added to the reaction liquid by the first raw material supplementing assembly to reduce the viscosity of the reaction liquid.

[0044] For example, as shown in Figure 1 The micro-reaction device in the present application further comprises a second raw material supplementing assembly 500, which is arranged between the outlet of the third reaction liquid switch F3 and the inlet of each raw material sub-reaction unit 201, so that the step-by-step control of the multi-step reaction can be realized by adding the auxiliary agent to the reaction system.

[0045] For example, as shown in Figure 1 The micro-reaction device in the present application further comprises a second reaction liquid detecting assembly E2, which is arranged between the outlet of the third reaction liquid switch F3 and the outlet of the second raw material supplementing assembly 500, so that the reaction liquid can be adjusted according to the detection result of the second reaction liquid detecting assembly E2 to realize the step-by-step control of the multi-step reaction and expand the applicable reaction range.

[0046] For example, for the reaction A(l)+B(l)→C(l) which gradually increases in viscosity without control, taking the raw material reaction unit comprising three raw material sub-reaction units as an example: if the viscosity detected by the second reaction liquid detecting assembly E2 at the outlet of the first raw material sub-reaction unit is higher than the expected value, the solvent can be appropriately added to the reaction liquid by the second raw material supplementing assembly 500 to reduce the viscosity value. Thereafter, if the viscosity detected by the second reaction liquid detecting assembly E2 at the outlet of the second raw material sub-reaction unit is still higher than the expected value, the solvent can be continuously added to the reaction liquid by the second raw material supplementing assembly 500 to reduce the viscosity value. Finally, the viscosity of the reaction liquid at the outlet of the third raw material sub-reaction unit is detected by the first reaction liquid detecting assembly E1, and if the viscosity meets the expectation, the reaction liquid is not adjusted; if the viscosity does not meet the expectation, the reaction liquid is continuously adjusted.

[0047] It can be understood that the reaction temperature can be controlled in multiple stages, or set to the same temperature. Different requirements for reaction temperature in multi-step reactions can be met, energy consumption in refrigeration or heating in the reaction can be saved, different requirements for temperature in different reaction stages of the same reaction can be met, and the reaction can be applied to reactions with different reaction temperatures and sample collection temperatures. While improving reaction yield and selectivity, energy utilization can also be improved.

[0048] For example, when the viscosity of the reaction liquid of each raw material sub-reaction unit gradually increases, the temperature of the first raw material sub-reaction unit to the temperature of the third raw material sub-reaction unit can be gradually increased according to actual needs, so that the micro-reaction device can be applied to reaction systems with a certain viscosity.

[0049] In an alternative way, as shown in Figure 1 The micro-reaction device in the present application further comprises a first alarm 600, which is arranged at the first reaction liquid detection assembly E1; and / or, the first alarm 600 is arranged at the outlet of the second reaction liquid detection assembly E2. When the first reaction liquid detection assembly E1 detects that a certain value of the reaction liquid is in an abnormal state, the first alarm 600 can remind the staff to check; when the second reaction liquid detection assembly E2 detects that a certain value of the reaction liquid is in an abnormal state, the first alarm 600 can warn of danger, so as to facilitate quick analysis and determination of the position of the reaction abnormality, and thus quickly solve the problem.

[0050] Taking an example of a raw material reaction unit comprising three raw material sub-reaction units: when the second reaction liquid detection assembly E2 detects that the solid content in the reaction liquid at the outlets of the first raw material sub-reaction unit and the second raw material sub-reaction unit meets the preset value, but the solid content in the reaction liquid detected by the first reaction liquid detection assembly E1 is higher than the set value, it is judged that the solid components in the reaction liquid may have agglomerated abnormally, at which time the first alarm can warn of danger.

[0051] In an alternative way, as shown in Figure 1 The micro-reaction device in the present application further comprises a product detection assembly C, a product collection switch S, a tail gas treatment unit 700, a tail gas detection assembly W, and a second alarm 800, wherein the product collection switch S and the product detection assembly C are arranged in sequence at the product outlet of the product collection unit 300, the inlet of the tail gas treatment unit 700 is connected with the tail gas outlet of the product collection unit 300, the tail gas detection assembly W and the second alarm 800 are arranged in sequence at the inlet of the tail gas treatment unit 700, which are used to determine the position of the reaction abnormality, so as to quickly solve the problem.

[0052] In the embodiment, when the reaction liquid flows from the outlet of the raw material reaction unit 200 to the inlet of the product collection unit 300, the tail gas is introduced into the tail gas treatment unit 700 from the tail gas outlet of the product collection unit 300. If the tail gas detection component W arranged at the inlet of the tail gas treatment unit 700 detects that the product exceeding the preset value remains in the tail gas, the second alarm 800 needs to be used for warning, and the temperature is reduced to make the product sufficiently condensed and then collected. If the tail gas detection component W arranged at the inlet of the tail gas treatment unit 700 detects that the product not higher than the preset value remains in the tail gas, the tail gas can be treated in the tail gas treatment unit 700 and discharged from the outlet of the tail gas treatment unit 700. Similarly, the product can be discharged from the product outlet of the product collection unit 300 through the product collection switch S, and the performance of the product is detected by the product detection component C.

[0053] It can be understood that, in order to control the pressure of the tail gas overflowing from the outlet of the tail gas treatment unit 700, the third pressure switch B3 can be arranged at the outlet of the tail gas treatment unit 700. When the opening degree of the third pressure switch B3 increases, the pressure of the tail gas decreases; when the opening degree of the third pressure switch B3 decreases, the pressure of the tail gas increases.

[0054] The application further provides a micro-reaction system comprising the micro-reaction device. Figure 2 A schematic diagram of the micro-reaction system provided by the embodiment of the application is shown. As shown in Figure 1 and Figure 2As shown, the micro-reaction system further comprises a controller T, and the first feed parameter detection component P1, the second feed parameter detection component P2, the first reaction liquid detection component E1, the second reaction liquid detection component E2, the tail gas detection component W, the first alarm 600, the second alarm 800, the first reaction liquid switch F1 to the fourth reaction liquid switch F4, the feed switch D, the feed supplement switch J, the total feed switch I, the product collection switch S, and the first pressure switch B1 to the third pressure switch B3 included in the micro-reaction device are electrically connected with the controller. Therefore, the controller can adjust the opening degree of the first reaction liquid switch F1, the second reaction liquid switch F2, the third reaction liquid switch F3, the fourth reaction liquid switch F4, the total feed switch I, the product collection switch S, and the first pressure switch B1 to the third pressure switch B3 according to the actual needs. In addition, when the first feed parameter detection component P1 transmits the acquired signal to the controller T, if the signal received by the controller T is greater than or lower than the preset value, the controller T will control the opening degree of the feed switch D of the raw material sub-conveying unit 101 to adjust the feed parameter, so as to realize the accurate control of the reaction; when the second feed parameter detection component P2 transmits the acquired signal to the controller T, if the signal received by the controller T is greater than or lower than the preset value, the controller T will control the opening degree of the feed supplement switch J of the first raw material supplement component 400 to adjust the feed parameter, so as to realize the accurate control of the reaction; when the reaction liquid parameter detection component H transmits the acquired signal to the controller T, if the signal received by the controller T is greater than or lower than the preset value, the controller T will control the opening degree of the pressure switch (for example: the first pressure switch B1 to the third pressure switch B3) to adjust the feed parameter, so as to realize the accurate control of the reaction; when the first reaction liquid detection component E1 transmits the acquired signal to the controller T, if the signal received by the controller T is greater than or lower than the preset value, the controller T will control the opening degree of the feed supplement switch J of the first raw material supplement component 400 to adjust the feed parameter, and control the first alarm to alarm, so as to realize the accurate control of the reaction. When the second reaction liquid detection component E2 transmits the acquired signal to the controller T, if the signal received by the controller T is greater than or lower than the preset value, the controller T will control the opening degree of the feed supplement switch J of the second raw material supplement component 500 to adjust the feed parameter, and control the first alarm 600 to alarm, so as to realize the accurate control of the reaction. When the tail gas detection component W transmits the acquired signal to the controller T, if the signal received by the controller T is greater than the preset value, the controller T will control the second alarm 800 to alarm, so as to realize the accurate control of the reaction.

[0055] The embodiments of the application have been described above. However, these embodiments are merely meant to be illustrative of the application and are not meant to limit the scope of the application. The scope of the application is defined by the appended claims and their equivalents. Various alternatives and modifications can be made to the embodiments of the application without departing from the scope of the application, and it is intended that all such alternatives and modifications be included within the scope of the application.

Claims

1. A micro-reactor, characterized in that: include: A raw material delivery unit, a first reaction liquid switch, a second reaction liquid switch, a raw material reaction unit, and a product collection unit; the outlet of the raw material delivery unit is connected to the inlet of the raw material reaction unit through the first reaction liquid switch, and the outlet of the raw material reaction unit is connected to the inlet of the product collection unit through the second reaction liquid switch; The raw material reaction unit includes a plurality of raw material sub-reaction units, and two adjacent raw material sub-reaction units are connected in series.

2. The micro-reactor according to claim 1, characterized in that: The raw material conveying unit includes multiple raw material sub-conveying units, each of which is connected in parallel; each of the raw material sub-conveying units includes a first raw material storage part, a first feed parameter detection component, a feed switch and a temperature pretreatment pipeline, the first feed parameter detection component and the feed switch are connected in series between the outlet of the first raw material storage part and the inlet of the temperature pretreatment pipeline, and the outlet of the temperature pretreatment pipeline is connected to the inlet of the first reaction liquid switch.

3. The micro-reactor according to claim 1, characterized in that: Each of the raw material sub-reaction units includes a reaction tube of a first diameter and a reaction tube of a second diameter connected in parallel with the reaction tube of the first diameter, the reaction tube of the first diameter and the reaction tube of the second diameter having a merged inlet and a merged outlet, and the raw material reaction unit also includes a plurality of third reaction liquid switches, and two adjacent raw material sub-reaction units are connected via the third reaction liquid switches.

4. The micro-reactor according to claim 3, characterized in that: The micro-reaction device further includes a plurality of first pressure switches, each of which is arranged between the outlet of the raw material sub-reaction unit and the inlet of the third reaction liquid switch.

5. The micro-reactor according to claim 4, characterized in that: Two adjacent third reaction liquid switches are connected in parallel, and the third reaction liquid switch is connected in parallel with the second reaction liquid switch.

6. The micro-reactor according to claim 3, characterized in that: The micro-reactor device also includes a first raw material replenishment component, which is arranged between the outlet of the second reaction liquid switch and the inlet of the product collection unit; the first raw material replenishment component includes a second raw material storage part, a second feeding parameter detection component and a first feeding switch, the outlet of the second raw material storage part is connected to the outlet of the second reaction liquid switch through the first feeding switch, and the second feeding parameter detection component is arranged between the outlet of the second raw material storage part and the inlet of the feeding switch.

7. The micro-reactor according to claim 6, characterized in that: The micro-reaction device further includes a first reaction liquid detection component, which is arranged between the outlet of the second reaction liquid switch and the outlet of the first raw material replenishing component.

8. The micro-reactor according to claim 7, characterized in that: The micro-reaction device further includes a second raw material replenishing component, which is arranged between the outlet of the third reaction liquid switch and the inlet of each raw material sub-reaction unit.

9. The micro-reactor according to claim 8, characterized in that: The micro-reaction device further includes a second reaction liquid detection component, which is arranged between the outlet of the third reaction liquid switch and the outlet of the second raw material replenishing component.

10. The micro-reactor according to claim 9, characterized in that: The micro-reaction device further comprises a first alarm, which is arranged at the outlet of the first reaction liquid detection component; and / or the first alarm is arranged at the outlet of the second reaction liquid detection component.

11. The micro-reactor according to claim 6, characterized in that: The micro-reactor further includes a discharge parameter detection component, which is disposed between the outlet of the first raw material replenishment component and the inlet of the product collection unit.

12. The micro-reactor according to claim 1, characterized in that: The micro-reaction device further includes a second pressure switch, which is arranged between the outlet of the raw material reaction unit and the inlet of the second reaction liquid switch.

13. The micro-reactor according to claim 1, characterized in that: The micro-reactor device also includes a product detection component, a product collection switch, an exhaust gas treatment unit, an exhaust gas detection component and a second alarm. The product collection switch and the product detection component are sequentially arranged at the product outlet of the product collection unit, the inlet of the exhaust gas treatment unit is connected to the exhaust gas outlet of the product collection unit, and the exhaust gas detection component and the second alarm are sequentially arranged at the inlet of the exhaust gas treatment unit.

14. The micro-reactor according to claim 13, characterized in that: The micro-reaction device further includes a third pressure switch, which is arranged at the outlet of the tail gas treatment unit.

15. A micro-reaction system, characterized in that: include: The micro-reactor according to any one of claims 1 to 14.

16. The micro-reaction system according to claim 15, characterized in that: The micro-reaction system also includes a controller, and the first feeding parameter detection component, the second feeding parameter detection component, the first reaction liquid detection component, the second reaction liquid detection component, the discharge parameter detection component, the exhaust gas detection component, the first alarm, the second alarm, the first reaction liquid switch, the second reaction liquid switch, the feeding switch, the third reaction liquid switch, the feeding switch, the first pressure switch, the second pressure switch, the third pressure switch and the product collection switch included in the micro-reaction device are electrically connected to the controller respectively.

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