Emulsion equipment for generating liquid drops with uniform diameter
By using a combination of discharge tank, air injection pipe and air extraction pipe in the emulsion equipment, the stable transport and uniform droplet generation of corrosive materials are achieved, and the existing equipment has high cost of conveying and maintaining corrosive materials. question.
Patent Information
- Application Number
- CN202421007027.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing emulsion equipment is susceptible to corrosion when transporting corrosive materials, and mechanical drive components are complex and require regular maintenance, resulting in high cost of use and difficult to generate uniform diameter droplets.
An emulsion device is designed, including a discharge tank, a gas injection pipe, a gas extraction pipe and a flow control chip. Through the control of high-pressure gas and a negative pressure environment, it ensures the stable transport of the continuous and dispersed phases and uniform droplet generation.
It effectively avoids corrosion of corrosive materials on the equipment, reduces the pollution opportunities of mechanical drive components, reduces maintenance costs, and achieves the generation and stable delivery of uniform diameter droplets.
Smart Images
Figure CN222267014U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of emulsion preparation, in particular to an emulsion device for generating droplets with uniform diameters. Background Art
[0002] Emulsions are formed by the suspension of dispersed phases (such as particles, colloids or emulsions) in continuous phases (such as liquids), and appear as milky or turbid liquids. Emulsions are usually composed of milky liquids and suspended tiny particles or solid particles, and have high stability and long-term suspension capabilities.
[0003] When making emulsions into droplets of uniform diameter, it is necessary to select suitable dispersed phases and continuous phases to ensure that the composition of the emulsion meets the requirements of the target application, and prepare microfluidic chips or devices with suitable sizes and structures. It is also necessary to ensure that the channels are clean and dust-free. During output, the emulsion is evenly mixed in the microfluidic chip, and the flow rate and pressure of the emulsion are adjusted to control the speed and size of droplet generation.
[0004] In the spray for arthritis treatment, the dispersed phase is usually a therapeutic drug or its nanoparticle form. These drugs can include non-steroidal anti-inflammatory drugs (such as ibuprofen, indomethacin), glucocorticoids (such as hydrocortisone), anti-rheumatic drugs (such as methotrexate), etc. These ingredients can be used to reduce arthritis inflammation, relieve joint pain and other symptoms.
[0005] In the spray for arthritis treatment, the continuous phase is the main carrier or solvent in the turbid emulsion, which is used to carry and deliver the drug in the dispersed phase. In the spray for arthritis treatment, the continuous phase can be selected from solvents suitable for skin and joint applications, such as ethanol, propylene glycol, water and other suitable solvents. The selection of the continuous phase needs to take into account the ability to dissolve the drug, permeability, safety and spray performance.
[0006] When conveying the dispersed phase and the continuous phase, a conveying mechanism is required to control the conveying speed and conveying volume of the dispersed phase and the continuous phase. A common method is to convey the dispersed phase and the continuous phase through a syringe pump. However, the syringe pump is susceptible to corrosion when conveying corrosive materials, and is susceptible to wear during long-term use. In addition, the syringe pump is usually composed of complex mechanical drive components and requires regular maintenance and servicing, including cleaning, lubrication, replacement of parts, etc., which results in a high cost of use. Therefore, an emulsion device for producing droplets of uniform diameter is needed to solve the above problems. Summary of the invention
[0007] The object of the present invention is to provide an emulsion device for producing droplets of uniform diameter, which can effectively solve the problems in the background technology.
[0008] To achieve the above object, the present invention provides the following technical solution: an emulsion device for producing droplets of uniform diameter, comprising a first gas tank, an exhaust pipe, a discharge tank, a storage tank, a second gas tank and a fluidic chip body, wherein the top of the discharge tank is opened and connected with an air injection pipe, the bottom of the discharge tank is opened and connected with a second injection pipe, one side of the discharge tank is opened and connected with an exhaust pipe, and the rear end of the discharge tank is opened and connected with a first exhaust pipe;
[0009] The top of the gas injection pipe is connected and installed with the top of the exhaust pipe, the exhaust pipe adopts a three-way pipe structure design, and the two ends of the bottom of the exhaust pipe are connected and installed on the top of the first gas tank and the second gas tank respectively;
[0010] The second injection pipe is connected and installed with the fluidic chip body through the first injection pipe;
[0011] The end of the air extraction pipe away from the discharge tank is connected to a vacuum pump;
[0012] The bottom end of the first material extraction pipe is connected to a second material extraction pipe, and the second material extraction pipe is movably inserted in the material storage tank.
[0013] Preferably, a flange is provided on the top of the gas injection pipe, a connecting pipe is installed on the top of the gas injection pipe through the flange, one end of the connecting pipe away from the gas injection pipe is connected and installed with the top of the exhaust pipe, a fifth control valve is fixedly installed on the connecting pipe, and the fifth control valve has a built-in start interval control chip and can be programmed. By connecting the connecting pipe with the top of the exhaust pipe and fixing the fifth control valve on the connecting pipe, the amount of high-pressure gas injected into the discharge tank through the connecting pipe can be controlled by the opening and closing degree of the fifth control valve, so that an appropriate amount of high-pressure gas enters the discharge tank and pushes the continuous phase or dispersed phase in the discharge tank to perform a discharge operation.
[0014] Preferably, a flange is provided at one end of the second injection pipe away from the discharge tank, and a sixth control valve is fixedly installed on the second injection pipe. By fixing the sixth control valve on the second injection pipe, when the high-pressure gas is not injected into the discharge tank, the sixth control valve can be used to prevent the continuous phase or the dispersed phase from being discharged.
[0015] Preferably, a sealed valve is fixedly installed on the air extraction pipe, and the installation height of the top of the air extraction pipe matches the height of the top of the first material extraction pipe. By fixing the sealed valve on the air extraction pipe, after the air pump evacuates the inside of the discharge tank and the continuous phase or the dispersed phase enters the inside of the discharge tank through negative pressure, the air extraction pipe can be closed by the sealed valve, so that during the subsequent high-pressure gas injection, the high-pressure gas is prevented from leaking through the air extraction pipe, thereby making the inside of the discharge tank in a relatively high-pressure state.
[0016] Preferably, a one-way valve is fixedly installed on the first material extraction pipe, a connecting sleeve is fixedly installed on the bottom end of the first material extraction pipe, and an inner wall of the connecting sleeve is provided with equidistantly distributed annular protrusions. By fixing the one-way valve on the first material extraction pipe, the continuous phase or the dispersed phase can only flow in one direction in the first material extraction pipe, so that when the high-pressure gas is subsequently injected, the high-pressure gas is prevented from leaking through the first material extraction pipe, thereby making the inside of the discharge tank in a relatively high-pressure state.
[0017] Preferably, the third control valve and the fourth control valve are fixedly installed on the opposite sides of the exhaust pipe to the first gas tank and the second gas tank. By fixing the third control valve and the fourth control valve on the opposite sides of the exhaust pipe to the first gas tank and the second gas tank, the first gas tank and the second gas tank can be used alternately in actual use, thereby ensuring that the pressure of the high-pressure gas injected into the discharge tank is the same each time, and then the injection gas volume can be conveniently controlled without changing the injection time.
[0018] Preferably, the sizes of the first gas tank and the second gas tank match, a first mounting bracket is fixedly mounted on the first gas tank, a vacuum pump is fixedly mounted on the front end of the first mounting bracket, a second mounting bracket is fixedly mounted on the second gas tank, a placement bracket is slidably mounted on the front end of the second mounting bracket, the storage tank is movably placed in the placement bracket, and holes are opened below the front ends of the first gas tank and the second gas tank are connected and installed through an air inlet pipe.
[0019] Preferably, the air intake pipe adopts a three-way pipe structure design, and the first control valve and the second control valve are fixedly installed on the opposite sides of the first gas tank and the second gas tank at both ends of the air intake pipe, and the air pump body is connected and installed at the front end of the air intake pipe. By fixing the first control valve and the second control valve on the opposite sides of the first gas tank and the second gas tank at both ends of the air intake pipe, the first gas tank and the second gas tank can be alternately replaced during actual use, so that the first gas tank and the second gas tank always maintain appropriate air pressure.
[0020] Preferably, the fluidic chip body includes a feed channel, a mixing channel and a dispersion channel, the mixing channel is opened in the middle section of the feed channel, the dispersion channel is located below the feed channel and is connected to the mixing channel, the end of the dispersion channel away from the mixing channel passes through the fluidic chip body and is connected and installed with a discharge pipe, the end of the discharge pipe away from the fluidic chip body is installed with a micro-control valve, the upper end surface of the fluidic chip body is diagonally opened with a first injection port and a second injection port, the first injection port and the second injection port are both connected to the feed channel, and the end of the first injection tube away from the second injection tube is connected to the second injection port.
[0021] Preferably, a cover body is threadedly mounted on the top of the storage tank, and two holes are opened on the upper end surface of the cover body, one of which is embedded with an air intake valve, and the first material extraction pipe passes through the other hole, and the connecting sleeve on the first material extraction pipe is located below the cover body, and at the same time, the cross-sectional size of the connecting sleeve is larger than the size of the opening on the cover body. By opening two holes on the upper end surface of the cover body, one of which is embedded with an air intake valve, the setting of the air intake valve can keep the relative pressure in the storage tank stable, and will not cause negative pressure in the storage tank due to extraction, thereby avoiding the situation where the continuous phase or the dispersed phase is automatically discharged from the storage tank.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] , the present invention provides a discharge tank, and provides an injection pipe on the discharge tank, and connects the injection pipe with the exhaust pipe through a connecting pipe, so that high-pressure gas can be injected into the discharge tank through the first gas tank or the second gas tank through the exhaust pipe and the injection pipe, and during the injection, the injection amount of the high-pressure gas can be controlled by the fifth control valve provided on the connecting pipe. The fifth control valve has the function of starting interval control, through which the opening and closing time of the high-pressure gas delivery can be controlled, so as to ensure the stability of the amount of high-pressure gas injected into the discharge tank each time. Specifically, the fifth control valve can accurately adjust the on-off time of the high-pressure gas, and before each injection of the high-pressure gas into the discharge tank, the starting interval time can be set in advance on the fifth control valve. The gas volume is controlled by the time interval between the opening time and the closing time of the fifth control valve. This function ensures that each time the high-pressure gas is injected into the discharge tank, the high-pressure gas can be stably injected, and the amount of high-pressure gas injected each time is the same. By adjusting the start interval time, the amount of high-pressure gas injected at a single time can be controlled according to specific needs. Under the premise of stable air pressure, the amount of high-pressure gas injected into the discharge tank at the same time is the same, thereby ensuring that the thrust generated by the high-pressure gas is the same each time the discharge tank is discharged, thereby achieving the purpose of controlling the discharge speed of the continuous phase or the dispersed phase, and achieving the effect of pushing the continuous phase or the dispersed phase by the high-pressure gas, thereby realizing the conveying of the continuous phase or the dispersed phase.
[0024] 2. The present invention provides a discharge tank, and installs an exhaust pipe on the discharge tank, and an exhaust pump is installed at one end of the exhaust pipe away from the discharge tank. The exhaust pump is provided to form a negative pressure in the discharge tank by exhausting air, and the continuous phase or dispersed phase stored in the storage tank can be sucked into the discharge tank through the first exhaust pipe and the second exhaust pipe under the negative pressure environment. In the process of the continuous phase or dispersed phase entering the discharge tank, the corrosion of the corrosive continuous phase or dispersed phase to the equipment is avoided, which is of great significance for the process of handling corrosive materials, and can protect the equipment and extend its service life. At the same time, the negative pressure feeding method prevents the continuous phase or dispersed phase from contacting with the mechanical driving components in the process of entering the discharge tank, reducing the chance of contamination, which is very important for processes requiring high purity or pollution-free, and can ensure the purity and quality of the material. In addition, by establishing a negative pressure environment, the risk of leakage of the continuous phase or dispersed phase during transportation is reduced, which helps to maintain the safety of the production environment and reduce the possibility of workers being exposed to harmful substances. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;
[0026] Figure 2 For the present invention Figure 1 The structural diagram of the enlarged part in the middle;
[0027] Figure 3 This is a schematic diagram of the installation structure of the first gas tank and the second gas tank of the present invention;
[0028] Figure 4 It is a schematic diagram of the connecting pipe installation structure of the present invention;
[0029] Figure 5 This is a schematic diagram of the installation structure of the discharge tank of the present invention;
[0030] Figure 6 A is a schematic cross-sectional structure diagram of the fluidic chip body of the present invention;
[0031] Figure 7 FIG. 1 is a schematic diagram B of the cross-sectional structure of the fluidic chip body of the present invention.
[0032] In the figure: 1, air pump body; 2, first control valve; 3, first gas tank; 4, exhaust pipe; 5, connecting pipe; 6, discharge tank; 7, storage tank; 8, second gas tank; 9, second control valve; 10, air inlet pipe; 11, fluid control chip body; 12, first injection port; 13, discharge pipe; 14, first injection pipe; 15, cover; 16, first extraction pipe; 17, intake valve; 18, first mounting bracket; 19, air pump; 2 0. Placement rack; 21. Second mounting rack; 22. Third control valve; 23. Fourth control valve; 24. Fifth control valve; 25. Sealed valve; 26. Gas injection pipe; 27. One-way valve; 28. Connecting sleeve; 29. Second extraction pipe; 30. Flange; 31. Sixth control valve; 32. Second injection pipe; 33. Extraction pipe; 34. Second injection port; 35. Feed channel; 36. Mixing channel; 37. Dispersion channel. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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. Example
[0034] like Figure 1 and Figure 5 As shown, an embodiment of the present invention is: an emulsion device for producing droplets of uniform diameter, comprising a first gas tank 3, an exhaust pipe 4, a discharge tank 6, a storage tank 7, a second gas tank 8 and a fluidic chip body 11, the discharge tank 6 has a hole at the top and is connected to a gas injection pipe 26.
[0035] A flange 30 is provided at the top of the gas injection pipe 26, and a connecting pipe 5 is installed on the top of the gas injection pipe 26 through the flange 30. The end of the connecting pipe 5 away from the gas injection pipe 26 is connected and installed with the top of the exhaust pipe 4. The fifth control valve 24 is fixedly installed on the connecting pipe 5. The fifth control valve 24 has a built-in start interval control chip and can be programmed. By connecting the connecting pipe 5 and the top of the exhaust pipe 4, and fixing the fifth control valve 24 on the connecting pipe 5, the amount of high-pressure gas injected into the discharge tank 6 through the connecting pipe 5 can be controlled by the opening and closing degree of the fifth control valve 24, so that an appropriate amount of high-pressure gas enters the discharge tank 6, and pushes the continuous phase or dispersed phase in the discharge tank 6 to discharge.
[0036] The bottom end of the discharge tank 6 is opened and connected to a second injection pipe 32, and a flange 30 is provided at one end of the second injection pipe 32 away from the discharge tank 6, and a sixth control valve 31 is fixedly installed on the second injection pipe 32. By fixing the sixth control valve 31 on the second injection pipe 32, when the high-pressure gas is not injected into the discharge tank 6, the sixth control valve 31 can be used to prevent the continuous phase or the dispersed phase from being discharged.
[0037] The end of the exhaust pipe 33 away from the discharge tank 6 is connected to the exhaust pump 19. A closed valve 25 is fixedly installed on the exhaust pipe 33, and the installation height of the top of the exhaust pipe 33 matches the height of the top of the first extraction pipe 16. By fixing the closed valve 25 on the exhaust pipe 33, after the exhaust pump 19 exhausts the inside of the discharge tank 7 and the continuous phase or the dispersed phase enters the inside of the discharge tank 6 through negative pressure, the exhaust pipe 33 can be closed by the closed valve 25, so that when the high-pressure gas is subsequently injected, the high-pressure gas is prevented from leaking through the exhaust pipe 33, thereby making the inside of the discharge tank 6 in a relatively high-pressure state.
[0038] The bottom end of the first material extraction pipe 16 is connected to a second material extraction pipe 29, which is movably inserted in the material storage tank 7. A one-way valve 27 is fixedly installed on the first material extraction pipe 16, and a connecting sleeve 28 is fixedly installed on the bottom end of the first material extraction pipe 16. The inner wall of the connecting sleeve 28 is provided with equidistantly distributed annular protrusions. By fixing the one-way valve 27 on the first material extraction pipe 16, the continuous phase or the dispersed phase can only flow in one direction in the first material extraction pipe 16, so that when the high-pressure gas is subsequently injected, the high-pressure gas is prevented from leaking through the first material extraction pipe 16, and the inside of the discharge tank 6 is in a relatively high-pressure state. Example
[0039] like Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, another embodiment provided by the present invention is an emulsion device for producing droplets of uniform diameter, comprising a first gas tank 3, an exhaust pipe 4, a discharge tank 6, a storage tank 7, a second gas tank 8 and a fluidic chip body 11, the top of the discharge tank 6 is opened and connected with an injection pipe 26, the top of the injection pipe 26 is connected and installed with the top of the exhaust pipe 4, the exhaust pipe 4 adopts a three-way pipe structure design, the two ends of the bottom of the exhaust pipe 4 are connected and installed with the top of the first gas tank 3 and the second gas tank 8, respectively, and the third control valve 22 and the fourth control valve 23 are fixedly installed on the opposite side of the first gas tank 3 and the second gas tank 8 at both ends of the exhaust pipe 4. By fixing the third control valve 22 and the fourth control valve 23 on the opposite side of the first gas tank 3 and the second gas tank 8 at both ends of the exhaust pipe 4, the first gas tank 3 and the second gas tank 8 can be used alternately in actual use, so as to ensure that the pressure of the high-pressure gas injected into the discharge tank 6 is the same each time, and then the injection gas volume can be conveniently controlled without changing the injection time. The first gas tank 3 and the second gas tank 8 are matched in size, a first mounting frame 18 is fixedly installed on the first gas tank 3, an air pump 19 is fixedly installed at the front end of the first mounting frame 18, a second mounting frame 21 is fixedly installed on the second gas tank 8, a placement frame 20 is slidably installed at the front end of the second mounting frame 21, and the storage tank 7 is movably placed in the placement frame 20. The first gas tank 3 and the second gas tank 8 are both opened below the front end and connected and installed through the air intake pipe 10. The air intake pipe 10 adopts a three-way pipe structure design, and the first control valve 2 and the second control valve 9 are fixedly installed on both ends of the air intake pipe 10 on the opposite side of the first gas tank 3 and the second gas tank 8, respectively, and the air pump body 1 is connected and installed at the front end of the air intake pipe 10. By fixing the first control valve 2 and the second control valve 9 on the opposite side of the first gas tank 3 and the second gas tank 8 at both ends of the air intake pipe 10, the first gas tank 3 and the second gas tank 8 can be alternately replaced during actual use, so that the first gas tank 3 and the second gas tank 8 always maintain a suitable air pressure.
[0040] The bottom end of the discharge tank 6 is opened and connected to a second injection pipe 32, which is connected to the fluidic chip body 11 through the first injection pipe 14. The fluidic chip body 11 includes a feed channel 35, a mixing channel 36 and a dispersion channel 37. The mixing channel 36 is opened in the middle section of the feed channel 35, and the dispersion channel 37 is located below the feed channel 35 and is connected to the mixing channel 36. The end of the dispersion channel 37 away from the mixing channel 36 passes through the fluidic chip body 11 and is connected to the discharge pipe 13. The end of the discharge pipe 13 away from the fluidic chip body 11 is installed with a micro-control valve. The upper end surface of the fluidic chip body 11 is diagonally provided with a first injection port 12 and a second injection port 34, which are both connected to the feed channel 35, and the end of the first injection pipe 14 away from the second injection pipe 32 is connected to the second injection port 34.
[0041] A hole is opened on one side of the discharge tank 6 and connected with an air extraction pipe 33. The end of the air extraction pipe 33 facing away from the discharge tank 6 is connected with an air extraction pump 19. A hole is opened on the rear end of the discharge tank 6 and connected with a first extraction pipe 16. The bottom of the first extraction pipe 16 is connected with a second extraction pipe 29. The second extraction pipe 29 is movably inserted in the storage tank 7. A cover body 15 is threadedly installed on the top of the storage tank 7. Two holes are opened on the upper end surface of the cover body 15. An air intake valve 17 is embedded in one of the holes. The first extraction pipe 16 passes through the other hole. The connecting sleeve 28 on the first extraction pipe 16 is located below the cover body 15. At the same time, the cross-sectional size of the connecting sleeve 28 is larger than the size of the opening on the cover body 15. Two holes are opened on the upper end surface of the cover body 15, and an air intake valve 17 is embedded in one of the holes. Through the setting of the air intake valve 17, the pressure in the storage tank 7 can be kept relatively stable, and negative pressure will not be generated in the storage tank 7 due to material extraction, thereby avoiding the continuous phase or the dispersed phase from being automatically discharged from the storage tank 7.
[0042] Combine the following Figure 1-6, the working principle of the present invention is described. First, the continuous phase or the dispersed phase is injected into the current storage tank 7. The storage tank 7 can accommodate a certain amount of the continuous phase or the dispersed phase, and the cover body 15 is installed to ensure that the storage tank 7 is relatively sealed. The devices including the air pump body 1, the air pump 19 and the corresponding control valve are started to ensure that all components work normally. The air extraction pipe 33 is installed on the discharge tank 6, and the air extraction pump 19 is connected and installed at the end of the air extraction pipe 33 away from the discharge tank 6. The setting of the air extraction pump 19 allows a negative pressure to be formed in the discharge tank 6 by exhausting air, and under the negative pressure environment, the continuous phase or the dispersed phase stored in the storage tank 7 can be discharged through the first extraction pipe 16 and the second extraction pipe 29. The dispersed phase is sucked into the discharge tank 6, and in the process of the continuous phase or the dispersed phase entering the discharge tank 6, the corrosion of the equipment by the corrosive continuous phase or the dispersed phase is avoided. This is of great significance for the process of handling corrosive materials, and can protect the equipment and extend its service life. At the same time, the negative pressure feeding method prevents the continuous phase or the dispersed phase from contacting with the mechanical drive components in the process of entering the discharge tank 6, reducing the chance of contamination. This is very important for processes requiring high purity or pollution-free, and can ensure the purity and quality of the materials. In addition, by establishing a negative pressure environment, the risk of leakage of the continuous phase or the dispersed phase during the transportation process is reduced, which helps to maintain the safety of the production environment and reduce the possibility of workers being exposed to harmful substances.By arranging an air injection pipe 26 on the discharge tank 6, and connecting the air injection pipe 26 with the exhaust pipe 4 through the connecting pipe 5, high-pressure gas can be injected into the discharge tank 6 through the first gas tank 3 or the second gas tank 8 through the exhaust pipe 4 and the air injection pipe 26, and during the injection, the injection amount of the high-pressure gas can be controlled by the fifth control valve 24 arranged on the connecting pipe 5. The fifth control valve 24 has the function of starting interval control, through which the opening and closing time of the high-pressure gas can be controlled, so as to ensure the stability of the amount of high-pressure gas injected into the discharge tank 6 each time. Specifically, the fifth control valve 24 can accurately adjust the on-off time of the high-pressure gas. Before each injection of the high-pressure gas into the discharge tank 6, the gas volume can be controlled by setting the starting interval time on the fifth control valve 24 in advance, that is, the time interval between the opening time and the closing time of the fifth control valve 24. This function ensures that each time the high-pressure gas is injected into the discharge tank 6, the high-pressure gas can be stably injected, and the amount of high-pressure gas injected each time is the same, and the By adjusting the start-up interval time, the amount of high-pressure gas injected in a single time can be controlled according to specific needs, so that under the premise of stable air pressure, the amount of high-pressure gas injected into the discharge tank 6 in the same time is the same, thereby ensuring that the thrust generated by the high-pressure gas is the same each time the discharge tank 6 is discharged, thereby achieving the purpose of controlling the discharge speed of the continuous phase or the dispersed phase. The continuous phase or the dispersed phase is introduced into the fluidic chip body 11 through the first injection pipe 14. The fluidic chip body 11 includes a feed channel 35, a mixing channel 36 and a dispersion channel 37. The design and arrangement of these channels can achieve the generation of droplets of uniform diameter. When used specifically, the above-mentioned device for conveying the continuous phase or the dispersed phase should be configured with two sets, so that the continuous phase or the dispersed phase can be conveyed synchronously in the same way, and the above-mentioned two sets of devices should respectively inject the continuous phase or the dispersed phase into the fluidic chip body 11 from the first injection port 12 or the second injection port 34, so that the emulsion of droplets of uniform diameter generated at the same time is generated and produced from the fluidic chip body 11.
Claims
1. An emulsion device for producing droplets of uniform diameter, comprising a first gas tank (3), an exhaust pipe (4), a discharge tank (6), a storage tank (7), a second gas tank (8) and a fluidic chip body (11), characterized in that: The top of the discharge tank (6) is opened and connected to an air injection pipe (26), the bottom of the discharge tank (6) is opened and connected to a second injection pipe (32), one side of the discharge tank (6) is opened and connected to an air extraction pipe (33), and the rear end of the discharge tank (6) is opened and connected to a first extraction pipe (16). The top of the gas injection pipe (26) is connected and installed with the top of the exhaust pipe (4), the exhaust pipe (4) adopts a three-way pipe structure design, and the two ends of the bottom of the exhaust pipe (4) are connected and installed on the top of the first gas tank (3) and the second gas tank (8) respectively; The second injection pipe (32) is connected and installed with the fluidic chip body (11) through the first injection pipe (14); An end of the air extraction pipe (33) facing away from the discharge tank (6) is connected to a suction pump (19). The bottom end of the first material extraction pipe (16) is connected to a second material extraction pipe (29) installed therein, and the second material extraction pipe (29) is movably inserted into the material storage tank (7).
2. An emulsion device for producing droplets of uniform diameter according to claim 1, characterized in that: A flange (30) is provided at the top of the gas injection pipe (26), and a connecting pipe (5) is installed on the top of the gas injection pipe (26) through the flange (30). One end of the connecting pipe (5) facing away from the gas injection pipe (26) is installed in communication with the top of the exhaust pipe (4). A fifth control valve (24) is fixedly installed on the connecting pipe (5), and the fifth control valve (24) has a built-in start interval control chip and can be programmed.
3. An emulsion device for producing droplets of uniform diameter according to claim 1, characterized in that: A flange (30) is provided at one end of the second injection pipe (32) that faces away from the discharge tank (6), and a sixth control valve (31) is fixedly mounted on the second injection pipe (32).
4. The emulsion device for producing droplets of uniform diameter according to claim 1, characterized in that: A sealed valve (25) is fixedly mounted on the air extraction pipe (33), and the installation height of the top of the air extraction pipe (33) matches the height of the top of the first material extraction pipe (16).
5. The emulsion device for producing droplets of uniform diameter according to claim 1, characterized in that: A one-way valve (27) is fixedly mounted on the first material extraction pipe (16), a connecting sleeve (28) is fixedly mounted on the bottom end of the first material extraction pipe (16), and an inner wall of the connecting sleeve (28) is provided with equidistantly distributed annular protrusions.
6. The emulsion device for producing droplets of uniform diameter according to claim 1, characterized in that: A third control valve (22) and a fourth control valve (23) are respectively fixedly mounted on the two ends of the exhaust pipe (4) on the side opposite to the first gas tank (3) and the second gas tank (8).
7. The emulsion device for producing droplets of uniform diameter according to claim 1, characterized in that: The first gas tank (3) and the second gas tank (8) have matching sizes. A first mounting frame (18) is fixedly mounted on the first gas tank (3). The vacuum pump (19) is fixedly mounted on the front end of the first mounting frame (18). A second mounting frame (21) is fixedly mounted on the second gas tank (8). A placement frame (20) is slidably mounted on the front end of the second mounting frame (21). The storage tank (7) is movably placed in the placement frame (20). Holes are opened at the bottom of the front ends of the first gas tank (3) and the second gas tank (8) and are connected and mounted via an air inlet pipe (10).
8. An emulsion device for producing droplets of uniform diameter according to claim 7, characterized in that: The air intake pipe (10) adopts a three-way pipe structure design, and the first control valve (2) and the second control valve (9) are respectively fixedly installed on the two ends of the air intake pipe (10) on the side opposite to the first air tank (3) and the second air tank (8), and the front end of the air intake pipe (10) is connected to the air pump body (1).
9. The emulsion device for producing droplets of uniform diameter according to claim 1, characterized in that: The fluidic chip body (11) comprises a feed channel (35), a mixing channel (36) and a dispersion channel (37); the mixing channel (36) is arranged in the middle section of the feed channel (35); the dispersion channel (37) is arranged below the feed channel (35) and is connected to the mixing channel (36); one end of the dispersion channel (37) away from the mixing channel (36) passes through the fluidic chip body (11) and is connected to a discharge pipe (13); one end of the discharge pipe (13) away from the fluidic chip body (11) is installed with a micro-control valve; a first injection port (12) and a second injection port (34) are diagonally arranged on the upper end surface of the fluidic chip body (11); the first injection port (12) and the second injection port (34) are both connected to the feed channel (35); and one end of the first injection pipe (14) away from the second injection pipe (32) is connected to the second injection port (34).
10. The emulsion device for producing droplets of uniform diameter according to claim 1, characterized in that: The top of the material storage tank (7) is threadedly mounted with a cover body (15), and the upper end surface of the cover body (15) is provided with two holes, one of which is embedded with an air intake valve (17), and the first material extraction pipe (16) passes through the other hole, and the connecting sleeve (28) on the first material extraction pipe (16) is located below the cover body (15), and at the same time, the cross-sectional size of the connecting sleeve (28) is larger than the size of the opening on the cover body (15).