Rapid Mixing Reactor

Abstract

A rapid mixing reaction device comprises a multi-stage micro-controlled reaction chamber; a spiral mixing reaction section arranged in each stage of the micro-controlled reaction chamber, wherein the spiral mixing reaction sections in each stage of the micro-controlled reaction chamber are sequentially connected to form a spiral mixing reaction chamber; a light source arranged inside the spiral tubular structure of the spiral mixing reaction section; and a control unit connected to the micro-controlled reaction chamber to control the automatic operation of each micro-controlled reaction chamber. The rapid mixing reaction device of the present invention can achieve rapid and uniform mixing and high-efficiency reaction conversion of reactants to be mixed, meet the needs of real-time monitoring of actual environmental pollutants and online calibration of monitoring equipment, etc., can achieve rapid mixing and efficient reaction conversion of environmental pollutants or rapid mixing and stable synthesis of standard substances, and provide important technical support for online environmental monitoring quality assurance.

Description

Technical Field

[0001] The invention relates to the technical field of photochemistry and analytical chemistry, in particular to a rapid mixing reaction device. Background Art

[0002] Online environmental monitoring has always been an important research method in environmental chemistry research. The online analysis and calibration of many monitoring equipment need to be completed through on-site mixing reactions. Existing mixing reaction equipment is usually a T-shaped structure, a cylindrical structure, and a cabin structure. Since the material transmission process in this type of mixing reaction device is usually in the form of laminar or turbulent flow, the mixing rate is slow and the mixing uniformity is relatively poor, which ultimately leads to large differences in the mixing reaction results. Usually, the volume of the reaction device is increased to extend the mixing time to reduce the impact of uncertainty. Since the actual real-time fluctuation range of environmental pollutant concentrations is relatively wide, and the reaction activity of some pollutants is relatively large, the longer reaction conversion time can easily lead to large deviations in monitoring results. At the same time, the larger reaction volume can easily lead to serious pollutant residue problems, resulting in mass discrimination problems in the mixed reaction device, which makes the measurement results more uncertain.

[0003] In addition, some mixed reaction conditions usually require multiple steps of reaction to complete, and the reaction conditions of each step are also different. The existing mixed reaction equipment is usually set in the same box, and it is impossible to achieve the synchronous and coordinated adjustment of multiple reaction conditions, which will make the reaction conversion efficiency relatively low, and thus affect the accuracy of the monitoring results. In view of the many shortcomings of the existing mixed reaction devices, the present invention can achieve rapid and uniform mixing of the reactants to be mixed and high-efficiency reaction conversion, meeting the needs of real-time online monitoring of actual environment and online calibration and calibration of monitoring equipment. Summary of the invention

[0004] In view of this, one of the main objectives of the present invention is to provide a rapid mixing reaction device, in order to at least partially solve at least one of the above-mentioned technical problems.

[0005] In order to achieve the above object, the present invention provides a rapid mixing reaction device, comprising:

[0006] Multi-stage micro-controlled reaction chamber;

[0007] The spiral mixing reaction section is arranged in each level of micro-controlled reaction chamber, and the spiral mixing reaction sections in each level of micro-controlled reaction chamber are connected in sequence to form a spiral mixing reaction chamber;

[0008] a light source, disposed inside the spiral tubular structure of the spiral mixing reaction section; and

[0009] The control unit is connected to the micro-controlled reaction chamber to control the automatic operation of each micro-controlled reaction chamber.

[0010] Based on the above technical solution, it can be seen that the rapid mixing reaction device of the present invention has at least one or part of the following advantages over the prior art:

[0011] 1. Since the concentration of actual environmental pollutants fluctuates in a wide range in real time, and some pollutants have relatively high reactivity, the mixing reaction devices currently used have problems such as slow mixing speed, uneven mixing, and low reaction efficiency, which easily lead to large deviations in monitoring results. The rapid mixing reaction device of the present invention can achieve rapid and uniform mixing and high-efficiency reaction conversion of the reactants to be mixed, meet the needs of real-time monitoring of actual environmental pollutants and online calibration of monitoring equipment, and can achieve rapid mixing and efficient reaction conversion of environmental pollutants or rapid mixing and stable synthesis of standard substances, providing important technical support for online environmental monitoring quality assurance.

[0012] 2. The spiral structure can achieve rapid and uniform mixing of the reactants to be mixed;

[0013] 3. The programmatic introduction of multiple reactants to be mixed can realize multi-step mixing reactions in an integrated manner;

[0014] 4. The combination of multi-stage micro-control reaction chambers realizes the coordinated control of multi-stage mixed reaction conditions, which can ensure high-efficiency reaction conversion;

[0015] 5. The system runs stably and is easy to operate. It can not only meet the monitoring needs of the online environment, but also can be used for online calibration of instruments and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of a rapid mixing device provided in an embodiment of the present invention.

[0018] Description of reference numerals:

[0019] 11-spiral mixing reaction chamber; 101-first feed port; 102-second feed port; 103-third feed port; 104-fourth feed port; 105-fifth feed port; 111-discharge port; 21-outer box; 201-first-stage micro-controlled reaction chamber; 202-second-stage micro-controlled reaction chamber; 203-third-stage micro-controlled reaction chamber; 204-fourth-stage micro-controlled reaction chamber; 31-light source. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The invention discloses a rapid mixing reaction device, comprising:

[0024] Multi-stage micro-controlled reaction chamber;

[0025] The spiral mixing reaction section is arranged in each level of micro-controlled reaction chamber, and the spiral mixing reaction sections in each level of micro-controlled reaction chamber are connected in sequence to form a spiral mixing reaction chamber;

[0026] a light source, disposed inside the spiral tubular structure of the spiral mixing reaction section; and

[0027] The control unit is connected to the micro-controlled reaction chamber to control the automatic operation of each micro-controlled reaction chamber.

[0028] In some embodiments of the present invention, a feed port is provided in the spiral mixing reaction section in each micro-controlled reaction chamber.

[0029] In some embodiments of the present invention, the spiral mixing reaction chamber is an integrated structure.

[0030] In some embodiments of the present invention, a spiral mixing reaction chamber feed port is provided at the starting end of the spiral mixing reaction chamber.

[0031] In some embodiments of the present invention, a spiral mixing reaction chamber discharge port is provided at the end of the spiral mixing reaction chamber.

[0032] In some embodiments of the present invention, the spiral mixing reaction chamber is a coaxial spiral structure.

[0033] In some embodiments of the present invention, the light source is disposed at the axial center of the spiral mixing reaction chamber.

[0034] In some embodiments of the present invention, the rapid mixing reaction device further comprises a peripheral box, and the peripheral box is arranged outside the multi-stage micro-controlled reaction chamber.

[0035] In some embodiments of the present invention, a thermal insulation layer is provided between the peripheral box and the multi-stage micro-controlled reaction chamber.

[0036] In some embodiments of the present invention, a fixed base is provided between the peripheral box and the multi-stage micro-controlled reaction chamber, and the multi-stage micro-controlled reaction chamber is fixed on the fixed base.

[0037] The technical solution of the present invention is further described below by means of specific embodiments in combination with the accompanying drawings. It should be noted that the following specific embodiments are only used as examples, and the protection scope of the present invention is not limited thereto.

[0038] like Figure 1 As shown, the rapid mixing reaction device provided by the embodiment of the present invention comprises: a reaction chamber composed of a multi-stage micro-control reaction chamber, a spiral mixing reaction chamber 11, an outer box 21, a light source 31 and a control unit. The spiral mixing reaction chamber 11 is used for mixed reaction conversion of environmental pollutants and standard substances, the outer box 21 is used for fixing the spiral mixing reaction chamber 11 and controlling the mixed reaction conditions, and the control unit is used to realize and control the automatic operation of the rapid mixing reaction device.

[0039] The spiral mixing reaction chamber 11 is arranged inside the reaction chamber and fixed on the side wall of the multi-stage micro-controlled reaction chamber. The spiral mixing reaction chamber 11 runs through all the micro-controlled reaction chambers in the horizontal direction. The spiral mixing reaction chamber 11 is divided into a plurality of spiral mixing reaction sections by the multi-stage micro-controlled reaction chambers in the axial direction of the mixing reaction chamber, so that each micro-controlled reaction chamber includes a spiral mixing reaction section. Each micro-controlled reaction chamber has independent reaction conditions, and the specific conditions are set according to actual needs. The multi-stage setting of the spiral mixing reaction chamber 11 is conducive to the coordinated control of the multi-stage conditions of the mixed reaction.

[0040] The spiral mixing reaction chamber 11 is a reaction chamber body of a coaxial spiral structure, the feed inlet is directly connected to the spiral mixing reaction chamber 11 body, and the discharge port is located at the end of the spiral mixing reaction chamber 11.

[0041] The specifications of the micro-controlled reaction chamber are determined according to the conditions required for the mixed reaction; the micro-controlled reaction chamber is also equipped with a temperature control part and a light source control part, which can be controlled separately or have program control functions. The temperature control part adopts a cooling and heating coordinated temperature control mode or a liquid bath mode to achieve a wide range of temperature control.

[0042] The spiral mixing reaction chamber 11 also includes specification parameters, including the material of the spiral mixing reaction chamber 11, the inner diameter of the spiral mixing reaction chamber 11, the spiral diameter of the spiral mixing reaction chamber 11, the spiral pitch of the spiral mixing reaction chamber 11, the length of the spiral mixing reaction chamber 11, and the number of feed ports. The setting of these specification parameters can be set according to the conditions required for each mixing reaction. The material of the reaction chamber can be selected from quartz material that can transmit ultraviolet light, or other materials such as Teflon, PEEK and stainless steel, which is specifically determined according to the conditions required for the mixing reaction and is not specifically limited here.

[0043] The number of the multi-stage micro-control reaction chambers can be set as required, for example, 2, 3, 4, 5, 6, 7, etc. Figure 1 As shown, in this embodiment, there are four levels of micro-controlled reaction chambers, namely, the first-level micro-controlled reaction chamber 201, the second-level micro-controlled reaction chamber 202, the third-level micro-controlled reaction chamber 203, and the fourth-level micro-controlled reaction chamber 204. A first feed inlet (i.e., a spiral mixing reaction chamber feed inlet) 101 is provided at the starting end of the spiral mixing reaction section in the first-level micro-controlled reaction chamber 201, and the first feed inlet can be arranged in the first-level micro-controlled reaction chamber 201 or outside the first-level micro-controlled reaction chamber 201; a second feed inlet 102 is also provided on the spiral mixing reaction section in the first-level micro-controlled reaction chamber 201; the first reactant to be mixed enters the spiral mixing reaction chamber 11 from the first feed inlet 101, and the first reactant to be mixed is mixed with the spiral mixing reaction section in the first-level micro-controlled reaction chamber 201 and then mixed with the feed from the second feed inlet 102. The introduced second reactant to be mixed is mixed and then enters the second-stage micro-controlled reaction chamber 202; the second reactant to be mixed introduced from the third feed port 103 is mixed in the second-stage micro-controlled reaction chamber 202 and then enters the third-stage micro-controlled reaction chamber 203; the third reactant to be mixed introduced from the fourth feed port 104 is mixed in the third-stage micro-controlled reaction chamber 203 and then enters the first-stage micro-controlled reaction chamber 204; the fifth reactant to be mixed introduced from the fifth feed port 105 is mixed in the fourth-stage micro-controlled reaction chamber 204 and then discharged from the discharge port (i.e., the discharge port of the spiral mixing reaction chamber) 111. The reaction conditions of each stage of the micro-controlled reaction chamber are set as required.

[0044] The outer wall of the multi-stage micro-control reaction chamber is made of hard and light material, which completely wraps the spiral mixing reaction chamber 11 and the micro-control reaction chamber, and only the inlet and outlet ports and the control pipeline passing holes are reserved.

[0045] The outer box 21 is the outer box of the spiral mixing reaction chamber 11 and plays a role in protecting the spiral mixing reaction chamber 11 .

[0046] The heat-insulating layer is located between the outer box body 21 and the multi-stage micro-controlled reaction chamber, and is used to keep the entire set of multi-stage micro-controlled reaction chambers warm.

[0047] The fixed base is located on the bottom plate of the outer box body 21 to fix the multi-stage micro-controlled reaction chamber.

[0048] The light source 31 is installed in the axial position of the spiral mixing reaction chamber 11. Different wavelength light sources are selected according to the experimental conditions, and the light source intensity is adjusted to ensure the conversion efficiency of the mixing reaction. The light source of each reaction chamber can be controlled independently.

[0049] The control unit is arranged inside the outer box 21, and the control unit is used to control the reaction conditions of the spiral mixing reaction chamber 11 to realize and control the automatic operation of the rapid mixing reaction device. Micro-control reaction chamber. The control unit includes the control of reaction conditions and the control of reactant feeding and discharging. The control of the reaction conditions includes: reaction temperature control, reaction pressure control, reaction light source control, etc.; the control of feeding and discharging includes the switch of the feeding and discharging channels of the reactants to be mixed and the synthesis, as well as the feeding and discharging rate, etc.

[0050] The target object output by the control unit at the discharge port can be directly connected to the monitoring instrument and equipment, thereby realizing real-time monitoring of environmental pollutants or calibration of the monitoring equipment.

[0051] The following is combined with Figure 1 The working process of the rapid mixing reaction device provided in the embodiment of the present invention is described in detail.

[0052] Step 1: Preparation of the rapid mixing reaction device. The first feed port 101, the second feed port 102, the third feed port 103, the fourth feed port 104 and the fifth feed port 105 are respectively connected to the corresponding reactants to be mixed, and the corresponding feed rates are preset by the control unit; the first-level micro-controlled reaction chamber 201, the second-level micro-controlled reaction chamber 202, the third-level micro-controlled reaction chamber 203 and the fourth-level micro-controlled reaction chamber 204 are all preset with corresponding temperature and light conditions by the control unit; the discharge port 111 is connected to the electrical control part and the corresponding rate is preset.

[0053] In the second step, the first premixed reactant enters the main body of the spiral mixing reaction chamber 11 through the first feed port 101, and is then transmitted in the chamber. Then, the second premixed reactant enters the main body of the mixing reaction chamber through the second feed port 102 and is quickly mixed and reacted with the first premixed reactant. After being evenly mixed, it reaches the next mixing reaction stage, and then is quickly mixed and reacted with the third premixed reactant entering from the third feed port 103, and is successively quickly mixed and reacted with the fourth premixed reactant and the fifth premixed reactant entering from the fourth inlet and the fifth feed port, and a final mixed product is formed and output through the discharge port 111.

[0054] In the third step, the target compound output from the discharge port can be directly connected to the monitoring instrument and equipment, thereby realizing real-time monitoring of environmental pollutants or calibration of monitoring equipment.

[0055] The present invention can solve the problems of slow mixing speed, uneven mixing and low reaction efficiency of the existing mixing reaction device used for online environmental monitoring. The reactants to be mixed enter the spiral mixing reaction chamber in sequence through different feed ports of the spiral tube, and the reactants undergo rapid turbulent mixing reaction in the spiral chamber. The mixing reaction conditions at different stages are controlled according to the reaction process, and the desired target is obtained at the outlet at the end of the mixing chamber. The present invention can achieve rapid and uniform mixing of the reactants to be mixed and high-efficiency reaction conversion.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid mixing reaction device, characterized in that: include: The multi-stage micro-controlled reaction chamber is configured to introduce multiple reactants to be mixed in a programmed manner to achieve multi-stage conditions for coordinated control of the mixed reaction, wherein each stage of the micro-controlled reaction chamber has independent reaction conditions; The spiral mixing reaction section is arranged in each micro-controlled reaction chamber, and the spiral mixing reaction sections in each micro-controlled reaction chamber are connected in sequence to form a spiral mixing reaction chamber, which is used for mixed reaction conversion of environmental pollutants and standard substances; wherein, The spiral mixing reaction chamber is an integrated structure and a coaxial spiral structure, and is divided into a plurality of spiral mixing reaction sections by the multi-stage micro-control reaction chamber in the axial direction of the mixing reaction chamber; The spiral mixing reaction chamber is provided with a spiral mixing reaction chamber feed port at the starting end, and a spiral mixing reaction chamber discharge port suitable for obtaining the desired target object is provided at the end. Each level of the spiral mixing reaction section is provided with a feed port, and the reactants to be mixed enter the spiral mixing reaction chamber in sequence through different feed ports of each level of the spiral mixing reaction section. The mixing reaction conditions at different stages are controlled according to the reaction process and a multi-step mixing reaction is achieved, so that the reactants to be mixed undergo a rapid turbulent mixing reaction in the spiral cavity, and the desired target object is obtained at the spiral mixing reaction chamber discharge port. The target object is directly connected to the monitoring instrument and equipment to achieve real-time monitoring of environmental pollutants or calibration of the monitoring equipment; The specification parameters of the spiral mixing reaction chamber include spiral diameter, spiral pitch, length and number of feed ports; A light source is arranged inside the spiral tubular structure of the spiral mixing reaction section. The light source is arranged at the axis center of the spiral mixing reaction chamber. Light sources of different wavelengths are selected according to experimental conditions, and the intensity of the light source is adjusted to ensure the conversion efficiency of the mixing reaction. The light source in each micro-control reaction chamber is independently controlled; and A control unit is connected to the micro-controlled reaction chamber to control the automatic operation of each micro-controlled reaction chamber. The control unit includes control of reaction conditions and control of reactant inlet and outlet. The control of reaction conditions includes control of reaction temperature, reaction pressure and reaction light source. The control of inlet and outlet includes switching of inlet and outlet channels of reactants to be mixed and synthetic materials and control of inlet and outlet rates.

2. The rapid mixing reaction device according to claim 1, characterized in that: The rapid mixing reaction device also includes an outer box, which is arranged outside the multi-stage micro-controlled reaction chamber.

3. The rapid mixing reaction device according to claim 2, characterized in that: A heat preservation layer is arranged between the peripheral box and the multi-stage micro-controlled reaction chamber.

4. The rapid mixing reaction device according to claim 2, characterized in that: A fixed base is arranged between the peripheral box body and the multi-stage micro-controlled reaction chamber, and the multi-stage micro-controlled reaction chamber is fixed on the fixed base.

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