A laboratory uniform droplet array continuous generation device

Abstract

The present invention proposes a laboratory uniform droplet array continuous generation device, which belongs to the field of laboratory simulation equipment. The device is mainly composed of three parts: a liquid source supply module, a droplet generation module and a device support module. The liquid source supply module contains a liquid storage container, a micro peristaltic pump and a peristaltic pump control system to ensure a stable water supply; the droplet generation module is composed of a 3D-printed microchannel array after surface treatment, which can generate uniform droplets of different sizes; the device support module is composed of rigid materials and a 3D-printed support frame, which is used to fix all components. This device can produce highly uniform droplet arrays and can flexibly adjust key parameters such as droplet size, droplet array scale, droplet array flow rate, etc. It is suitable for experimental scenarios in multidisciplinary fields that require uniform droplets, and greatly improves the reliability and accuracy of related experimental operations.

Description

Technical Field

[0001] The present invention relates to the field of laboratory simulation equipment, and more specifically, to a special device that can continuously generate uniform droplet arrays in a laboratory environment. The device is mainly used in various experimental scenarios that require precise control of droplet size and quantity as well as continuous supply of droplet arrays, and is intended for testing experiments such as droplet triboelectric devices and droplet piezoelectric devices. Background Art

[0002] In many scientific research and experimental operations, it is often necessary to generate uniform droplets to meet specific experimental requirements. Traditional droplet generation methods often find it difficult to accurately control the uniformity of droplet size, and when continuously generating droplets, problems such as unstable flow, large fluctuations in droplet size, flow interruption, and difficulty in supplying liquid over a large area are prone to occur, which seriously affect the accuracy, repeatability, and reliability of subsequent experimental results of the experiment. Although some existing droplet generating devices can achieve droplet generation to a certain extent, there are still many deficiencies in the fine control of droplet uniformity and the continuous and stable generation of large-area droplet arrays, which cannot meet the increasingly complex and high-precision scientific research experimental needs. Therefore, it is particularly important to develop a device that can effectively overcome the above-mentioned defects and can stably and continuously generate uniform droplet arrays. Summary of the Invention

[0003] The purpose of the present invention is to provide a laboratory uniform droplet array continuous generation device to solve the technical problem that the generation of droplets in the existing technology is difficult to accurately control the uniformity of droplet size and cannot meet the increasingly complex and high-precision scientific research experimental needs.

[0004] To solve the above problems, the present invention proposes a laboratory uniform droplet array continuous generation device, including a liquid source supply module, a droplet generation module and a device support module:

[0005] The liquid source supply module includes a liquid storage container, a primary delivery pipeline, a micro peristaltic pump and a peristaltic pump control system; one end of the primary delivery pipeline is connected to the outlet of the liquid storage container, and the primary delivery pipeline is immersed below the liquid level of the liquid storage container; the other end of the primary delivery pipeline is connected to the micro peristaltic pump, and the connection is sealed; the micro peristaltic pump is connected to the peristaltic pump control system;

[0006] The droplet generation module includes a reducer, a secondary delivery pipe and a microfluidic array; the outlet end of the micro peristaltic pump is connected to one end of the reducer, the other end of the reducer is connected to one end of the secondary delivery pipe, and the other end of the secondary delivery pipe is connected to the microfluidic array;

[0007] The device support module includes a base, a frame structure, an installation site, a first support frame and a second support frame; the base is placed in a predetermined stable position, the frame structure is vertically installed on the base and fastened by connecting parts; the first support frame and the second support frame are fixed to the installation site of the frame structure by connecting parts, and the height of the first support frame is higher than that of the second support frame; the first support frame is used to place a micro peristaltic pump, and the second support frame is used to place a microchannel array.

[0008] Furthermore, the liquid storage container is made of a material with high transparency, and a drain port is provided at the bottom thereof. A valve is provided at the drain port for draining the liquid in the container.

[0009] Furthermore, the primary delivery pipeline and the secondary delivery pipeline are both made of corrosion-resistant materials, and the inner diameter sizes of the primary delivery pipeline and the secondary delivery pipeline are adapted and selected according to a preset liquid flow range to ensure the stability of the liquid flow in the pipeline.

[0010] Furthermore, the micro peristaltic pump controls the flow rate evenly and accurately through a peristaltic pump control system, and micro peristaltic pumps of different models and sizes can be replaced and adjusted to adjust the lower limit and upper limit of the flow rate.

[0011] Furthermore, the reducer is prepared by 3D printing, including a concentric reducer, an eccentric reducer, and a special-shaped reducer.

[0012] Furthermore, the microfluidic channel array is prepared by 3D printing, and the microfluidic channel array has a multi-layer hierarchical diversion structure, which includes a main diversion channel and a secondary diversion channel. The secondary diversion channel branches out from the main diversion channel, and the outlet of the secondary diversion channel is connected to the nozzle structure.

[0013] Furthermore, the number of hierarchical layers and the number of branches of the sub-dividing channels of the microchannel array can be changed according to different requirements.

[0014] Furthermore, the outlet shape of the microchannel array is one of circular, square or elliptical, and its outlet size is customized according to the droplet size range to be generated, and the inner wall of the nozzle structure is covered with a superhydrophobic coating, which has superhydrophobicity to assist the liquid in forming a regular droplet shape at the outlet.

[0015] Furthermore, the outlet spacing of the microchannel array can be adjusted according to different requirements.

[0016] Furthermore, the first support frame and the second support frame are prepared by 3D printing, and the first support frame and the second support frame include a support surface, a back plate, a first fixing surface and a second fixing surface; the back plate and the support surface are connected and perpendicular to each other, the first fixing surface and the second fixing surface are parallel to each other, and the respective support surfaces and the back plate are connected and perpendicular to each other, so that the first support frame and the second support frame form a firm support structure;

[0017] The back plates of the first support frame and the second support frame are designed with threaded channels. During installation, the threaded channels are aligned with the installation positions on the frame structure. The first support frame and the second support frame are fixed by connecting parts. The second support frame is designed with reserved holes for installing the nozzle structure of the microchannel array.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] 1) Through high-precision flow control, advanced microfluidic structure, and precise droplet generation and regulation mechanism, the present invention can produce highly uniform droplets. The relative error of droplet size can be controlled within an extremely small range, which greatly improves the accuracy of droplet-related operations in the experiment, making the experimental results more accurate and reliable, and providing a strong guarantee for scientific research experiments that require precise control of droplet size.

[0020] 2) The present invention possesses the ability to continuously and stably generate droplet arrays: The device is capable of continuously generating droplet arrays, maintaining stable operation over extended periods, effectively avoiding the common issues of flow interruption and droplet instability associated with existing devices. Whether conducting short-term testing or long-term continuous experiments, it reliably supplies uniform droplets, meeting diverse experimental needs and improving experimental efficiency and repeatability.

[0021] 3) This device can produce highly uniform droplet arrays and flexibly adjust key parameters such as droplet size, droplet array scale, and droplet array flow rate. It is suitable for experimental scenarios in multidisciplinary fields that require uniform droplets, greatly improving the reliability and accuracy of related experimental operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a schematic diagram of the overall structure of the laboratory uniform droplet array continuous generation device of the present invention.

[0024] Figure 2This is a physical diagram of the overall structure of the laboratory uniform droplet array continuous generation device of the present invention.

[0025] Figure 3 This is a physical picture of the 3D printed reducer of the present invention.

[0026] Figure 4 These are design drawings of several 3D-printed microfluidic arrays of the present invention.

[0027] Figure 5 This is a design drawing of the 3D-printed support frame of the present invention.

[0028] Figure 6 This is a demonstration diagram of the effect of the laboratory uniform droplet array continuous generation device of the present invention.

[0029] Explanation of the marks in the figure: 1-liquid storage container; 2-primary delivery pipeline; 3-micro peristaltic pump; 4-peristaltic pump control system; 5-reducing joint; 6-secondary delivery pipeline; 7-microchannel array; 8-base; 9-frame structure; 10-installation site; 11-first support frame; 12-second support frame; 13-main diversion channel; 14-secondary diversion channel; 15-nozzle structure; 16-support surface; 17-back plate; 18 first fixing surface; 19-second fixing surface; 20-threaded channel; 21-reserved hole. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention.

[0031] The present invention proposes a laboratory uniform droplet array continuous generation device, such as Figure 1 、 Figure 2 As shown, the device includes a liquid source supply module, a droplet generation module and a device support module.

[0032] The liquid source supply module includes a liquid storage container 1 , a primary delivery pipeline 2 , a micro peristaltic pump 3 and a peristaltic pump control system 4 .

[0033] The liquid storage container 1 is made of a material with good chemical stability and high transparency (such as glass or a specific transparent plastic), allowing for intuitive observation of the internal liquid level. The liquid storage container 1 is used to store the liquid required for the experiment. A drain port is provided at the bottom of the container, with a valve installed at the drain port to facilitate emptying the liquid in the container after the experiment is completed or when the liquid needs to be replaced.

[0034] The primary delivery pipeline 2 is made of corrosion-resistant materials (such as polytetrafluoroethylene, etc.), and its inner diameter is carefully designed (generally 6-8mm) and is adapted and selected according to the preset liquid flow range to ensure that the liquid can flow stably in the pipeline.

[0035] The micro peristaltic pump 3 delivers liquid by squeezing a flexible tube, eliminating dead spots, making it easy to clean and less prone to residue. It is very suitable for applications requiring clean delivery. Each revolution of the pump delivers a fixed amount of fluid, resulting in very precise flow control, enabling accurate metered delivery through speed regulation and timing.

[0036] The peristaltic pump control system 4 changes the pump head speed of the micro-peristaltic pump 3 by varying the input voltage, achieving precise flow control. The micro-peristaltic pump 3 can precisely and evenly control its flow rate through the peristaltic pump control system 4, and can be replaced with micro-peristaltic pumps of different sizes to adjust the lower and upper flow limits.

[0037] One end of the primary delivery pipe 2 is connected to the outlet of the liquid storage container 1, and the primary delivery pipe 2 is submerged below the liquid level in the liquid storage container. The other end of the primary delivery pipe 2 is connected to a micro-peristaltic pump 3, and the connection is sealed to prevent leakage. The micro-peristaltic pump 3 is connected to a peristaltic pump control system 4.

[0038] The droplet generation module includes a reducing joint 5 , a secondary delivery pipe 6 and a microchannel array 7 .

[0039] The reducer 5 is prepared by 3D printing, such as Figure 3 As shown. When the fluid flows from a large-diameter pipe to a small-diameter pipe, according to the principles of fluid mechanics, the flow rate of the fluid will accelerate and the pressure will change accordingly. The reducer plays a role of transition regulation in this process, and reasonably controls the changes in fluid pressure and flow. In addition, since pipes of different diameters are prone to stress concentration, fluid impact and other problems at the connection part due to sudden changes in pipe diameter, the reducer can buffer the impact of the fluid on the pipe through its own reasonable structural design (such as a gradual pipe diameter transition section, etc.), disperse the stress at the connection part, play a certain protective role on the pipeline system, extend the service life of the pipe, and reduce the cost increase and production operation interruption caused by frequent maintenance and replacement of pipes. The reducer prepared by 3D printing can be integrated and, according to the actual fluid transmission needs, can be designed with complex shapes such as asymmetric diameter change and internal special flow guide structure, which can better optimize the flow state of the fluid and improve the transmission efficiency.

[0040] The reducer designed in the present invention includes a concentric reducer, an eccentric reducer and a special-shaped reducer.

[0041] The center lines of concentric reducers coincide, and the shape is manifested as circular openings at both ends, with different diameters of the circular openings at both ends, connected in the middle by a smoothly transitioning cone or cylinder. The centers of the circular openings at both ends of the eccentric reducer are not on the same straight line, and there is a certain eccentricity. When it is necessary to avoid certain structures while achieving a change in pipe diameter, the eccentric reducer can enable the pipe connection to change the pipe diameter and be flexibly arranged in space to prevent interference with other structures. In addition to simply changing the pipe diameter in conventional shapes such as circles and rectangles, special-shaped reducers may also present irregular shapes based on actual conditions such as flow channel interfaces and spatial layouts. For example, one end may have a circular interface and the other end may have an approximately trapezoidal interface, or may have irregular three-dimensional shapes such as bends and twists.

[0042] The secondary delivery pipeline 6 is the same as the primary delivery pipeline 2 and is made of corrosion-resistant materials (such as polytetrafluoroethylene, etc.). Its inner diameter is carefully designed (generally 3-5mm) and is adapted and selected according to the preset liquid flow range to ensure that the liquid can flow stably in the pipeline.

[0043] The microchannel array 7 is prepared by 3D printing, as shown in FIG. Figure 4 As shown. Traditional manufacturing processes are often limited when making microfluidic arrays with complex structures, while 3D printing technology can easily create microfluidic structures of various shapes, sizes and complexities according to specific needs and design concepts, including curves, branches, multi-layer structures, etc., which provides more space for the design and optimization of microfluidics and can better meet the fluid control and processing requirements in different application scenarios. 3D printing technology can use a variety of materials to prepare microfluidic arrays, including various plastics, resins, ceramics, metals, etc. Different materials have different physical, chemical and biological properties, and suitable materials can be selected according to specific application requirements. The outlet size of the microfluidic array prepared by 3D printing is customized according to the droplet size range required to be generated (generally the inner diameter is 3-5mm), and the inner wall of the nozzle structure has been surface-treated with a specific hydrophilicity and hydrophobicity, which can assist the liquid in forming a regular droplet shape at the outlet.

[0044] The microchannel array 7 has a multi-layer hierarchical flow distribution structure, which includes a primary flow channel 13 and a secondary flow channel 14. The secondary flow channel 14 branches out from the primary flow channel 13, and the outlet of the secondary flow channel 14 is connected to the nozzle structure 15. The number of hierarchical layers and the number of secondary flow channel branches of the microchannel array 7 can be adjusted according to different needs. This multi-layer hierarchical flow distribution structure ensures that the liquid is gradually and evenly distributed within the microchannel.

[0045] The outlet shape of the microchannel array 7 is one of circular, square or elliptical, and its outlet size is customized according to the droplet size range required to be generated, and the inner wall of the nozzle structure 15 is covered with a super-hydrophobic coating with specific super-hydrophobicity to assist the liquid in forming a regular droplet shape at the outlet. The outlet spacing of the microchannel array 7 can be adjusted according to different needs to adapt to complex application scenarios and needs. The main diversion channel and the secondary diversion channel have specific geometric shapes with completely consistent bending angles and lengths in each diversion channel. The liquid uses the above-mentioned specific geometric shapes of the main diversion channel and the secondary diversion channel to achieve uniform diversion and stably flow through the main diversion channel 13 to the secondary diversion channel 14. The liquid further breaks in the nozzle structure 15 according to the set rules to form a uniform droplet array.

[0046] The outlet of the microperistaltic pump 3 is connected to one end of a reducer 5, the other end of which is connected to one end of a secondary delivery pipe 6, the other end of which is connected to a microchannel array 7. The secondary delivery pipe 6 is tightly and seamlessly connected to the top of the microchannel array 7, ensuring smooth flow of liquid from the microperistaltic pump 3 into the microchannel array 7. The liquid flowing out of the microperistaltic pump 3 forms uniform droplets in the microchannel array 7 and flows out from each flow channel nozzle structure. Using reducers 5 of different sizes in conjunction with secondary delivery pipes 6 of different diameters can further vary the liquid flow rate.

[0047] The device support module includes a base 8 , a frame structure 9 , a mounting site 10 , a first support frame 11 and a second support frame 12 .

[0048] The base 8 and frame structure 9 are constructed of rigid materials (such as aluminum alloy) and possess sufficient strength and stability to maintain a horizontal and stable position on surfaces of varying flatness. This effectively prevents problems such as tilting of components and uneven liquid flow caused by uneven placement, ensuring proper operation of the device. The frame structure is equipped with multiple mounting points 10, the location and size of which can be flexibly adjusted based on the installation requirements of the liquid supply module and droplet generation module, facilitating the secure installation of each component and subsequent maintenance and repair.

[0049] The first support frame 11 and the second support frame 12 are prepared by 3D printing, and the length, width and height of the first support frame 11 and the second support frame 12 are tailored according to the size of the supported object. Figure 5 As shown, the first support frame 11 and the second support frame 12 include a support surface 16, a back plate 17, a first fixing surface 18, and a second fixing surface 19. The back plate 17 is connected to the support surface 16 and is perpendicular to each other. The first fixing surface 18 and the second fixing surface 19 are parallel to each other and are connected to the support surface 16 and the back plate 17 and are perpendicular to each other, ensuring that the support frame as a whole has a strong and stable mechanical structure.

[0050] The back panels 17 of the first and second support frames 11, 12 are designed with threaded channels 20. During installation, these channels 20 align with the mounting points 10 on the frame structure 9. Bolts and other fasteners secure the first and second support frames 11, 12. The second support frame 12 is designed with pre-set holes 21 for mounting the nozzle structure 15 of the microfluidic array 7. The first support frame 11 is used to house the micro-peristaltic pump 3, while the second support frame 12 is used to house the microfluidic array 7. The nozzle structure 15 of the microfluidic array 7 is connected to the pre-set holes in the second support frame 12, allowing droplets to flow smoothly through the pre-set holes. Depending on the number of microfluidic arrays 7, a second support frame with different pre-set holes is appropriately designed and selected.

[0051] The base 8 is placed in a predetermined stable position and checked using a level to ensure that the base 8 is level. The frame structure 9 is vertically mounted on the base 8 and fastened with bolts and other connectors to ensure a secure and reliable connection. The first support frame 11 and the second support frame 12 are fixed to the mounting point 10 of the frame structure 9 using bolts and other connectors. The mounting positions of the first support frame 11 and the second support frame 12 can be appropriately set as needed. However, the height of the first support frame 11 must be higher than that of the second support frame 12 to allow the droplets to flow downward under gravity without blocking the flow path.

[0052] When operating the laboratory uniform droplet array continuous generation device proposed in the present invention, first check whether the various modules of the device are correctly connected. Then start the device: adjust the peristaltic pump control system and start the entire device. At this time, the liquid storage container of the liquid source supply module stores the experimental liquid. The micro peristaltic pump and the peristaltic pump control system control the liquid to flow at a preset flow rate through the primary delivery pipe, the micro peristaltic pump, the secondary delivery pipe, and the microchannel array, and the droplet array begins to be generated. Figure 6 shown.

[0053] During the operation of the device, the operator needs to closely observe the droplet generation situation. If the droplet size is found to be uneven, it is determined whether it is uneven liquid flow in the microchannel or an abnormality in the microfluidic channel of the droplet generation module. If there are many bubbles in the primary or secondary delivery pipeline, the liquid flow in the microchannel is uneven; if one or several nozzles do not discharge water, it is an abnormality in the microfluidic channel of the droplet generation module. If the problem is uneven liquid flow in the microchannel, the peristaltic pump control system can be fine-tuned; if the problem is an abnormality in the microfluidic channel of the droplet generation module, the 3D-printed microfluidic channel array can be adjusted or replaced. This ensures that the device can continuously and stably produce a uniform droplet array to meet experimental needs.

[0054] Through high-precision flow control, advanced microfluidic structure and precise droplet generation and regulation mechanism, the present invention can produce highly uniform droplets. The relative error of droplet size can be controlled within an extremely small range, which greatly improves the accuracy of droplet-related operations in the experiment, making the experimental results more accurate and reliable, and providing strong support for scientific research experiments that require precise control of droplet size.

[0055] Furthermore, the present invention boasts the ability to continuously and stably generate droplet arrays: The device is capable of continuously generating droplet arrays, maintaining stable operation over extended periods, effectively avoiding common issues such as flow interruptions and droplet instability associated with existing devices. Whether conducting short-term testing or long-term continuous experiments, it reliably supplies uniform droplets, meeting diverse experimental needs and improving experimental efficiency and repeatability.

[0056] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A laboratory uniform droplet array continuous generation device, characterized in that: It includes a liquid source supply module, a droplet generation module and a device support module: the liquid source supply module includes a liquid storage container (1), a primary delivery pipeline (2), a micro peristaltic pump (3) and a peristaltic pump control system (4); one end of the primary delivery pipeline (2) is connected to the outlet of the liquid storage container (1), and the primary delivery pipeline (2) is immersed below the liquid level of the liquid storage container; the other end of the primary delivery pipeline (2) is connected to the micro peristaltic pump (3), and the connected part is sealed; the micro peristaltic pump (3) is connected to the peristaltic pump control system (4); the droplet generation module includes a reducing joint (5), a secondary delivery pipeline (6) and a microchannel array (7); the outlet end of the micro peristaltic pump (3) is connected to one end of the reducing joint (5), the other end of the reducing joint (5) is connected to one end of the secondary delivery pipeline (6), and the other end of the secondary delivery pipeline (6) is connected to the microchannel array (7); The device support module comprises a base (8), a frame structure (9), a mounting site (10), a first support frame (11) and a second support frame (12); the base (8) is placed in a predetermined stable position, the frame structure (9) is vertically mounted on the base (8) and fastened by a connector; the first support frame (11) and the second support frame (12) are fixed to the mounting site (10) of the frame structure (9) by a connector, and the height of the first support frame (11) is higher than the height of the second support frame (12); the first support frame (11) is used to place a micro peristaltic pump (3), and the second support frame (12) is used to place a microchannel array (7).

2. The laboratory uniform droplet array continuous generation device according to claim 1, characterized in that: The liquid storage container (1) is made of a material with high transparency, and a liquid discharge port is provided at the bottom thereof. A valve is provided at the liquid discharge port for draining the liquid in the container.

3. The laboratory uniform droplet array continuous generation device according to claim 1, characterized in that: The primary delivery pipeline (2) and the secondary delivery pipeline (6) are both made of corrosion-resistant materials, and the inner diameters of the primary delivery pipeline (2) and the secondary delivery pipeline (6) are adapted and selected according to a preset liquid flow range to ensure the stability of the liquid flow in the pipeline.

4. The laboratory uniform droplet array continuous generation device according to claim 1, characterized in that: The micro-peristaltic pump (3) controls the flow rate evenly and accurately through the peristaltic pump control system (4), and micro-peristaltic pumps of different models and sizes can be replaced to adjust the lower limit value and upper limit value of the flow rate.

5. The laboratory uniform droplet array continuous generation device according to claim 1, characterized in that: The reducer (5) is prepared by 3D printing and includes a concentric reducer, an eccentric reducer, and a special-shaped reducer.

6. The laboratory uniform droplet array continuous generation device according to claim 1, characterized in that: The microchannel array (7) is prepared by 3D printing, and has a multi-layer hierarchical shunt structure, wherein the multi-layer hierarchical shunt structure includes a main shunt channel (13) and a secondary shunt channel (14), wherein the secondary shunt channel (14) branches out from the main shunt channel (13), and the outlet of the secondary shunt channel (14) is connected to a nozzle structure (15).

7. The laboratory uniform droplet array continuous generation device according to claim 6, characterized in that: The microchannel array (7) can change the number of hierarchical layers and the number of branches of the secondary flow channels according to different needs.

8. The laboratory uniform droplet array continuous generation device according to claim 6, characterized in that: The outlet shape of the microchannel array (7) is one of circular, square or elliptical, and its outlet size is customized according to the droplet size range to be generated, and the inner wall of the nozzle structure (15) is covered with a super-hydrophobic coating, which has super-hydrophobicity to assist the liquid in forming a regular droplet shape at the outlet.

9. The laboratory uniform droplet array continuous generation device according to claim 6, characterized in that: The outlet spacing of the microchannel array (7) can be adjusted according to different requirements.

10. The laboratory uniform droplet array continuous generation device according to claim 1, characterized in that: The first support frame (11) and the second support frame (12) are prepared by 3D printing, and the first support frame (11) and the second support frame (12) include a support surface (16), a back plate (17), a first fixing surface (18) and a second fixing surface (19); the back plate (17) and the support surface (16) are connected and perpendicular to each other, the first fixing surface (18) and the second fixing surface (19) are parallel to each other, and the support surface (16) and the back plate (17) are connected and perpendicular to each other, so that the first support frame (11) and the second support frame (12) form a firm support structure; The back plates (17) of the first support frame (11) and the second support frame (12) are designed with threaded channels (20). When installed, the threaded channels (20) are aligned with the installation sites (10) on the frame structure (9). The first support frame (11) and the second support frame (12) are fixed by connecting members. The second support frame (12) is designed with a reserved hole (21) for installing a nozzle structure (15) of the microchannel array (7).

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