Microfluidic synthesis reaction device

Abstract

The utility model relates to the technical field of gas-liquid synthesis reaction devices, and discloses a microfluidic synthesis reaction device which comprises a reaction box, a mixing channel assembly is arranged in a cavity of the reaction box, a first feeding pipe and a second feeding pipe fixedly penetrate through the left side of the reaction box, and a discharging pipe fixedly penetrates through the right side of the reaction box; the mixing channel assembly comprises a mixing pipe, a plurality of mixing tanks and a connecting pipeline; and the mixing unit comprises a central body and a stirring part. The mixing channel assembly is arranged in the cavity of the reaction box, gas-phase reactants and liquid-phase reactants are fed into the mixing pipe through the first feeding pipe and the second feeding pipe respectively, the gas-phase reactants and the liquid-phase reactants are mixed through the mixing tanks, the reactants can be rapidly and fully mixed, the contact area of the gas-phase reactants and the liquid-phase reactants can be greatly increased, the reaction efficiency is improved, and the reaction time is shortened. The mixing unit is arranged in the mixing tank cavity, and the gas-phase reactant rotates by driving the stirring part, so that the mixing efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas -liquid synthetic reaction device technical field especially relates to a micro -fluidic synthetic reaction device. BACKGROUND

[0002] The prior art gas -liquid synthetic reaction device has the following problems:

[0003] 1. Reaction efficiency is low, and the gas -liquid reaction usually needs several hours or even dozens of hours;

[0004] 2. Operation is complicated, and the reaction kettle needs to repeatedly enter and exit the glove box, and the operation is very inconvenient;

[0005] 3. There is a security risk, and the reaction kettle usually needs to be pressurized to several megapascals of high pressure, and the security risk is higher;

[0006] 4. It is not easy to realize automatic operation.

[0007] Therefore, the person skilled in the art provides a micro -fluidic synthetic reaction device to solve the problems in the above background. UTILITY MODEL CONTENTS

[0008] In view of the deficiencies of the prior art, the utility model provides a micro -fluidic synthetic reaction device, which solves the problems in the above background.

[0009] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0010] A micro -fluidic synthetic reaction device, comprising: a reaction box, the reaction box is a hollow rectangular body, a mixing channel assembly for synthesis reaction is arranged in the cavity of the reaction box, a first feed pipe and a second feed pipe are fixedly penetrated on the left side of the reaction box, and a discharge pipe is fixedly penetrated on the right side of the reaction box;The mixing channel assembly comprises a mixing pipe, a plurality of mixing tanks and a connecting pipeline, the plurality of mixing tanks are interconnected through the connecting pipeline, one end of the mixing pipe is connected with the mixing tank on one side, and the first feed pipe and the second feed pipe are connected with the mixing pipe;The mixing unit is arranged in the mixing tank cavity, the contact area of gas -liquid phase is increased, the mixing unit comprises a central body and a stirring part, the stirring part is arranged on one side of the central body, and the stirring part comprises a main shaft and a mixing blade.

[0011] According to the micro -fluidic synthetic reaction device, the first feed pipe is located above the second feed pipe, liquid enters the mixing pipe through the first feed pipe, and gas enters the mixing pipe through the second feed pipe.

[0012] According to the micro -fluidic synthetic reaction device, a plurality of the mixing tank and the connecting pipeline constitute a continuous "S" shape arrangement in the reaction box cavity, and the mixing tank at the terminal is connected with the discharge pipe.

[0013] According to the microfluidic synthesis reaction device, one side of the reaction box is further provided with a circulating device, the circulating device comprises a reversing valve and a delivery pump, the delivery pump is fixedly installed on the ground, a first delivery pipe is connected between an input end of the delivery pump and the reversing valve, a discharge pipe is connected with the reversing valve at an end away from the reaction box, and another outlet of the reversing valve is connected with a second delivery pipe.

[0014] According to the microfluidic synthesis reaction device, a circulating pipe is connected between the delivery pump and the mixing pipe in a penetrating mode, and an electromagnetic valve is arranged at one end of the circulating pipe close to the mixing pipe.

[0015] According to the microfluidic synthesis reaction device, the bottom end of the mixing tank is conical, the top end of the mixing tank is cup-shaped, and the mixing tank is hollow.

[0016] According to the microfluidic synthesis reaction device, the central body is a double cone, the tip of one end of the central body is flattened, a fixing rod is fixedly connected between an outer wall surface of the central body and an inner wall surface of the mixing tank, a main shaft is movably installed on the flattened tip of one end of the central body through a bearing, mixing blades are fixedly installed on an outer wall surface of the main shaft, the number of the mixing blades is multiple, the multiple mixing blades are arranged in a ring array on the outer wall surface of the main shaft, a rotating fan blade is fixedly penetrated through the main shaft, and the rotating fan blade is located between the mixing blades and the central body.

[0017] The microfluidic synthesis reaction device has the following beneficial effects:

[0018] (1) The mixing channel assembly is arranged in the cavity of the reaction box, the first feeding pipe and the second feeding pipe respectively send the gas phase and the liquid phase reactants into the mixing pipe, the gas-liquid phase is mixed through the multiple mixing tanks, the reactants can be quickly and fully mixed, the contact area of the gas-liquid phase can be greatly increased, the reaction efficiency is improved, the mixing unit is arranged in the mixing tank cavity, the gas phase reactant is rotated through the driven stirring part, the mixing efficiency is further improved, and the practicability of the device is improved through reasonable structural design.

[0019] (2) The circulating device is arranged on one side of the reaction box, when the gas-liquid phase reactants have not reached the reaction endpoint after passing through the multiple groups of mixing tanks once, the gas-liquid phase reactants are re-injected into the mixing pipe through the first delivery pipe and the circulating pipe by the reversing valve and the delivery pump, continue to react through the multiple groups of mixing tanks again, and the electromagnetic valve arranged on one side of the circulating pipe can prevent the gas-liquid phase in the mixing pipe from passing in the reverse direction.

[0020] (3) by setting the bottom end of the mixing tank is tapered, the top of the mixing tank is cup-shaped, the mixing tank is hollow, the center body is fixed in the mixing tank cavity through the fixed rod, the gas-liquid phase reactants enter the mixing tank and mix and react in the mixing tank cavity, by setting the one end of the center body is tapered and is flattened, the main shaft is movably installed in the flattened one end of the center body through the bearing, the mixing blades are fixedly installed on the outer wall surface of the main shaft, the main shaft is fixedly penetrated by the rotating fan blade, when the gas-liquid phase reactants pass through the rotating fan blade, the rotating fan blade, the main shaft and the mixing blades rotate as a whole, the mixing efficiency between the gas-liquid phase reactants is accelerated, and the reaction rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic view of the microfluidic synthesis reaction device of the utility model;

[0022] Figure 2 It is a reaction box inner structure schematic view of the microfluidic synthesis reaction device of the utility model;

[0023] Figure 3 It is a three-dimensional structure schematic view of the mixing tank of the microfluidic synthesis reaction device of the utility model;

[0024] Figure 4 It is a mixing tank cavity inner structure schematic view of the microfluidic synthesis reaction device of the utility model;

[0025] Figure 5 It is a three-dimensional structure schematic view of the mixing unit of the microfluidic synthesis reaction device of the utility model.

[0026] LEGEND:

[0027] 10, reaction box; 11, first feeding pipe; 12, second feeding pipe; 13, discharging pipe; 14, reversing valve; 15, second conveying pipe; 16, first conveying pipe; 17, conveying pump; 18, mixing pipe; 19, mixing tank; 20, circulating pipe; 21, electromagnetic valve; 22, center body; 23, fixed rod; 24, main shaft; 25, mixing blade; 26, rotating fan blade. DETAILED DESCRIPTION

[0028] As Figures 1-5As shown: a microfluidic synthesis reaction device, comprising: a reaction box 10, the reaction box 10 is a hollow rectangular body, a mixing channel assembly for synthesis reaction is arranged in the cavity of the reaction box 10, the first feeding pipe 11 and the second feeding pipe 12 are fixedly penetrated on the left side of the reaction box 10, and the discharge pipe 13 is fixedly penetrated on the right side of the reaction box 10; the mixing channel assembly comprises a mixing pipe 18, a plurality of mixing tanks 19 and connecting pipelines, the plurality of mixing tanks 19 are penetrated through by the connecting pipelines, one end of the mixing pipe 18 is connected with the mixing tank 19 on one side, and the first feeding pipe 11 and the second feeding pipe 12 are connected with the mixing pipe 18; a mixing unit, the mixing unit is arranged in the cavity of the mixing tank 19, the contact area of gas-liquid phase is increased, and the mixing unit comprises a central body 22 and a stirring part, the stirring part is arranged on one side of the central body 22, and the stirring part comprises a main shaft 24 and a mixing blade 25.

[0029] Specifically, by arranging the mixing channel assembly in the cavity of the reaction box 10, the first feeding pipe 11 and the second feeding pipe 12 respectively send the gas phase and liquid phase reactants into the mixing pipe 18, the gas-liquid phase is mixed through the plurality of mixing tanks 19, so that the reactants can be quickly and fully mixed, the contact area of the gas-liquid phase can be greatly increased, the reaction efficiency can be improved, the mixing unit is arranged in the cavity of the mixing tank 19, the gas phase reactant is driven to rotate through the stirring part, the mixing efficiency is further improved, and the practicability of the device is improved through reasonable structural design.

[0030] The first feeding pipe 11 is located above the second feeding pipe 12, the liquid enters the mixing pipe 18 through the first feeding pipe 11, and the gas enters the mixing pipe 18 through the second feeding pipe 12.

[0031] Specifically, by arranging the first feeding pipe 11 above the second feeding pipe 12, the gas phase reactant enters the mixing tank 19 after driving the liquid phase reactant entering from the first feeding pipe 11.

[0032] The plurality of mixing tanks 19 and the connecting pipelines constitute a continuous "S" shape arrangement in the cavity of the reaction box 10, and the mixing tank 19 at the terminal end is connected with the discharge pipe 13.

[0033] Specifically, by arranging the plurality of mixing tanks 19 and the connecting pipelines to constitute a continuous "S" shape arrangement in the cavity of the reaction box 10, the contact area of the gas-liquid phase can be greatly increased, and the reaction efficiency can be improved.

[0034] The side of the reaction box 10 is further provided with a circulating device, the circulating device comprises a reversing valve 14 and a delivery pump 17, the delivery pump 17 is fixedly installed on the ground, a first delivery pipe 16 is connected between the input end of the delivery pump 17 and the reversing valve 14, the discharge pipe 13 is connected with the reversing valve 14 at the end away from the reaction box 10, and another outlet of the reversing valve 14 is connected with a second delivery pipe 15. The circulating pipe 20 is connected through between the delivery pump 17 and the mixing pipe 18, and the end of the circulating pipe 20 close to the mixing pipe 18 is provided with an electromagnetic valve 21.

[0035] Specifically, the circulating device is arranged on one side of the reaction box 10, when the gas-liquid phase reactants have not reached the reaction endpoint after passing through the multiple groups of mixing tanks 19 once, the gas-liquid phase reactants are re-injected into the mixing pipe 18 through the first delivery pipe 16 and the circulating pipe 20 by the cooperation of the reversing valve 14 and the delivery pump 17, and continue to react by passing through the multiple groups of mixing tanks 19 again. The electromagnetic valve 21 arranged on one side of the circulating pipe 20 can prevent the gas-liquid phase in the mixing pipe 18 from flowing backward.

[0036] The bottom end of the mixing tank 19 is conical, the top end of the mixing tank 19 is cup-shaped, and the mixing tank 19 is hollow. The center body 22 is a double cone, the tip of one end of the center body 22 is flattened, the fixed rod 23 is fixedly connected between the outer wall surface of the center body 22 and the inner wall surface of the mixing tank 19, the main shaft 24 is movably installed on the flattened tip of one end of the center body 22 through a bearing, the mixing blades 25 are fixedly installed on the outer wall surface of the main shaft 24, the number of the mixing blades 25 is multiple, the multiple mixing blades 25 are arranged in a ring array on the outer wall surface of the main shaft 24, the rotating fan blade 26 is fixedly penetrated through the main shaft 24, and the rotating fan blade 26 is located between the mixing blades 25 and the center body 22.

[0037] Specifically, the bottom end of the mixing tank 19 is conical, the top end of the mixing tank 19 is cup-shaped, and the mixing tank 19 is hollow. The center body 22 is fixed in the cavity of the mixing tank 19 through the fixed rod 23, the gas-liquid phase reactants are mixed and reacted in the cavity of the mixing tank 19 after entering the mixing tank 19. The tip of one end of the center body 22 is flattened, the main shaft 24 is movably installed on the flattened tip of one end of the center body 22 through a bearing, the mixing blades 25 are fixedly installed on the outer wall surface of the main shaft 24, and the rotating fan blade 26 is fixedly penetrated through the main shaft 24. When the gas-liquid phase reactants pass through the rotating fan blade 26, the rotating fan blade 26, the main shaft 24 and the mixing blades 25 rotate as a whole, the mixing efficiency between the gas-liquid phase reactants is accelerated, and the reaction rate is improved.

[0038] The working principle of the micro-fluidic synthesis reaction device is as follows: a mixing channel assembly is arranged in the cavity of the reaction box 10, the first feeding pipe 11 and the second feeding pipe 12 respectively send gas-phase and liquid-phase reactants into the mixing pipe 18, the gas-liquid phases are mixed in the plurality of mixing tanks 19, the reactants can be quickly and fully mixed, the contact area of the gas-liquid phases can be greatly increased, the reaction efficiency is improved, the mixing unit is arranged in the cavity of the mixing tank 19, when the gas-liquid phase reactants pass through the rotating fan blade 26, the rotating fan blade 26, the main shaft 24 and the mixing blade 25 are driven to rotate as a whole, the mixing efficiency between the gas-liquid phase reactants is accelerated, and the reaction rate is improved.

[0039] The circuit and electronic components and modules are all prior art, and those skilled in the art can realize them without further description, and the content protected by the utility model does not involve improvement of software and methods.

[0040] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model.

Claims

1. A microfluidic synthesis reaction device, characterized by, The utility model relates to a kind of reaction box and its circulating device, including: Reaction box (10), the reaction box (10) is hollow rectangular body, and the cavity of reaction box (10) is provided with mixing channel assembly for synthesis reaction, and the left side of reaction box (10) is fixed and penetrates first feed pipe (11) and second feed pipe (12), and the right side of reaction box (10) is fixed and penetrates discharge pipe (13); The mixing channel assembly includes mixing pipe (18), multiple mixing tanks (19) and connecting pipeline, multiple mixing tanks (19) are connected through connecting pipeline, one end of mixing pipe (18) is connected with mixing tank (19) on one side, and first feed pipe (11) and second feed pipe (12) are connected with mixing pipe (18); Mixing unit, the mixing unit is arranged in mixing tank (19) cavity, and the contact area of gas-liquid phase is increased, and mixing unit includes center body (22) and stirring part, and stirring part is arranged on one side of center body (22), and stirring part includes main shaft (24) and mixing blade (25).

2. The microfluidic synthetic reaction apparatus of claim 1, wherein: The first feed pipe (11) is located above the second feed pipe (12), and liquid enters mixing pipe (18) through first feed pipe (11), and gas enters mixing pipe (18) through second feed pipe (12).

3. The microfluidic synthetic reaction apparatus of claim 1, wherein: Multiple mixing tanks (19) and connecting pipeline constitute continuous "S" shape arrangement in the cavity of reaction box (10), and the mixing tank (19) at the end is connected with discharge pipe (13).

4. The microfluidic synthetic reaction apparatus of claim 1, wherein: One side of the reaction box (10) is also provided with a circulating device, the circulating device includes a reversing valve (14) and a delivery pump (17), the delivery pump (17) is fixedly installed on the ground, a first delivery pipe (16) is connected between the input end of the delivery pump (17) and the reversing valve (14), one end of the discharge pipe (13) away from the reaction box (10) is connected with the reversing valve (14), and the other outlet of the reversing valve (14) is connected with a second delivery pipe (15).

5. The microfluidic synthetic reaction apparatus of claim 4, wherein: The circulating pipe (20) is connected between the delivery pump (17) and the mixing pipe (18), and the electromagnetic valve (21) is arranged at one end of the circulating pipe (20) close to the mixing pipe (18).

6. The microfluidic synthetic reaction apparatus of claim 1, wherein: The bottom end of the mixing tank (19) is conical, the top end of the mixing tank (19) is cup-shaped, and the mixing tank (19) is hollow.

7. The microfluidic synthetic reaction apparatus of claim 1, wherein: The center body (22) is double-cone, one end of the center body (22) is truncated, the fixed rod (23) is fixedly connected between the outer wall surface of the center body (22) and the inner wall surface of the mixing tank (19), the main shaft (24) is movably installed at the truncated one end of the center body (22) through bearing, the mixing blade (25) is fixedly installed on the outer wall surface of the main shaft (24), the number of the mixing blade (25) is multiple, the multiple mixing blades (25) are arranged in annular array on the outer wall surface of the main shaft (24), the rotating fan blade (26) is fixedly penetrated through the main shaft (24), and the rotating fan blade (26) is located between the mixing blade (25) and the center body (22).

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