A batch filtration device

Abstract

This utility model discloses a batch filtration device, comprising: filter ports, installed parallel to a support frame, for filtering samples flowing out of crucibles; multiple sets of filter ports connected at their bottoms to a vacuum pump via the support frame, with a solenoid valve installed in the middle of each set of filter ports. This utility model, with multiple sets of filter ports installed parallel to the support frame and connected at their bottoms to a vacuum pump, enables batch processing of crucible pre-filtration experiments; each set of filter ports has a solenoid valve in its middle, allowing for independent filtration of samples from multiple sets of crucibles using a single vacuum pump, effectively improving experimental efficiency while preventing cross-contamination between samples.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically to a batch filtration device. Background Technology

[0002] Negative pressure filtration of solution crucibles of different sizes in the laboratory is a conventional technique that uses negative pressure sources such as vacuum pumps to generate pressure differences to achieve solid-liquid or gas-liquid separation. It is widely used in sample pretreatment, solvent purification, microbial culture and other scenarios.

[0003] Current laboratory pretreatment devices for crucible filtration, adaptable to different sizes and diameters, primarily rely on the physical tightness of the glass frosted interface to form a basic seal. Metal clamps are then used to mechanically fasten the connecting glass components to enhance the seal. However, the clamping force of the metal clamps depends entirely on the operator's experience; excessive force can cause uneven stress on the glass components, leading to cracks, while insufficient force can result in air and liquid leaks. Furthermore, the assembly and disassembly process is cumbersome. When processing multiple samples from the same batch, multiple cycles of assembling the device, connecting the vacuum pump, performing negative pressure filtration, and disassembly and cleaning are required. This significantly slows down the experimental pace and can easily lead to cross-contamination between different samples due to residual samples in the tubing or incomplete cleaning of the equipment, affecting the accuracy and repeatability of the experimental results. Utility Model Content

[0004] The purpose of this invention is to provide a batch filtration device to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including: The filter port is installed parallel to the support frame and is used to filter the sample flowing out of the crucible; The bottom of each set of filter ports is connected to a vacuum pump via a support frame, and a solenoid valve is provided in the middle of each set of filter ports.

[0006] As a further description of the above technical solution, a negative pressure flow channel is provided inside the support frame, and the bottom of the filter port is inserted into the top of the negative pressure flow channel.

[0007] As a further description of the above technical solution, a pump interface is led out from one side of the support frame, and the negative pressure flow channel is connected to the vacuum pump through the pump interface.

[0008] As a further description of the above technical solution, the crucible is inserted at the top of the filter port, and the crucible and the filter port are sealed together by plugs arranged in opposite directions.

[0009] As a further description of the above technical solution, the two sets of plugs are arranged coaxially.

[0010] As a further description of the above technical solution, a filter layer is provided on one and / or both sides of the plug head.

[0011] As a further description of the above technical solution, a fixing frame is provided through the middle of the multiple sets of filter ports, and the fixing frame is arranged parallel to the support frame.

[0012] As a further description of the above technical solution, a line frame is installed on one side of the support frame.

[0013] As a further description of the above technical solution, a control board is installed on the top of the line frame.

[0014] As a further description of the above technical solution, the control board is electrically connected to the solenoid valve.

[0015] The beneficial effects of this utility model are as follows: This invention features multiple sets of filter ports installed in parallel on a support frame. The bottom of each filter port is connected to a vacuum pump via the support frame, enabling batch processing of crucible filtration pretreatment experiments. Each set of filter ports is equipped with a set of solenoid valves in the middle. A single vacuum pump enables independent filtration of samples in multiple crucibles, effectively improving experimental efficiency while avoiding cross-contamination between samples.

[0016] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure label: 1. Filter port; 2. Support frame; 21. Negative pressure flow channel; 22. Pump interface; 3. Crucible; 4. Vacuum pump; 5. Solenoid valve; 6. Plug; 7. Fixing frame; 8. Circuit board; 9. Control board. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, in one embodiment, a batch filtration device includes: a filter port 1 installed parallel to the support frame 2 for filtering liquid samples flowing out of the crucible 3 to prevent the samples from spilling, splashing, or coming into contact with the external environment during the transfer process, thus preventing contamination. Among them, the bottom of multiple filter ports 1 is connected to the vacuum pump 4 through the support frame 2 to ensure that the negative pressure can be efficiently transmitted to each filter port 1; and a set of solenoid valves 5 are correspondingly set in the middle of each filter port 1, which can precisely control the opening and closing of the negative pressure passage and the magnitude of the negative pressure of the corresponding filter port 1.

[0021] For example, the support frame 2 has a negative pressure flow channel 21 inside to ensure that the negative pressure is stable and uniform when multiple filter ports 1 work at the same time; the bottom of the filter port 1 is inserted into the top of the negative pressure flow channel 21 to ensure that the connection is firm and not easy to fall off. Correspondingly, a pump interface 22 is led out from one side of the support frame 2. The negative pressure flow channel 21 is connected to the vacuum pump 4 through the pump interface 22. A commonly used laboratory vacuum interface or pagoda connector can be selected to facilitate quick connection with the connection pipeline of the vacuum pump 4.

[0022] Furthermore, the crucible 3 is inserted into the top of the filter port 1, and the crucible 3 and the filter port 1 are sealed together by opposing plugs 6. Quick docking is achieved by adapting crucibles 3 to different specifications.

[0023] For example, the two sets of stoppers 6 are arranged coaxially, that is, the two stoppers 6 are symmetrically distributed along the same central axis, ensuring that the sample always flows along the central axis during the transfer process, and avoiding liquid adhering to the inner wall of the stopper 6 or the side wall of the guide tube due to the eccentricity of the stopper 6, thus forming residue.

[0024] It should be noted that the stopper 6 has a filter layer on one and / or both sides. When the filter layer is only on one side of the stopper 6, the device is suitable for unidirectional filtration scenarios. When the filter layers are on both sides of the stopper 6, the device can support bidirectional purification functions. It is suitable for routine filtration needs such as removing solid impurities and aseptic filtration of culture media in sample pretreatment.

[0025] For example, the filter layer can be activated carbon or the like, which can be used to filter the sample during sample filtration using its porous adsorption structure to remove impurities from the sample.

[0026] Furthermore, a fixing frame 7 is provided in the middle of multiple filter ports 1. The fixing frame 7 can be a strip metal frame or a high-strength engineering plastic frame. The fixing frame 7 is set parallel to the support frame 2 and the filter ports 1 are fixed by tightening nuts or snap-fitting to prevent the filter ports 1 from shaking in the vertical direction.

[0027] Specifically, a wiring frame 8 is installed on one side of the support frame 2. The wiring frame 8 adopts an L-shaped metal bracket structure and is firmly fixed to the side of the support frame 2 with screws. Correspondingly, an integrated control board 9 is installed on the top of the wiring frame 8. The control board 9 and each group of solenoid valves 5 are electrically connected through heat-resistant and oil-resistant insulated wires, thereby realizing individual control of each group of solenoid valves 5.

[0028] Working principle: Multiple sets of filter ports 1 are installed in parallel on the support frame 2. Their bottoms are connected to the same vacuum pump 4 through the negative pressure flow channel 21 inside the support frame 2. Before the experiment, multiple sets of crucibles 3 are simply connected and sealed with the corresponding filter ports 1. After the vacuum pump 4 is turned on, the negative pressure can be synchronously transmitted to all filter ports 1 through the flow channel, so that the samples in multiple sets of crucibles 3 can be filtered and separated synchronously. This allows for efficient batch processing of crucible 3 pre-filtration experimental operations, effectively shortening the processing time of batch samples. At the same time, each set of filter ports 1 is independently equipped with a set of solenoid valves 5 in the middle. The experimenter can independently control each set of solenoid valves 5 through the control board 9. This can significantly improve experimental efficiency through batch operation, ensure that the filtration process of each set of samples is completely independent, and avoid cross-contamination problems that may occur between multiple sets of samples.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A batch filtration device, characterized in that, include: The filter port (1) is installed parallel to the support frame (2) and is used to filter the sample flowing out of the crucible (3); The bottom of the multiple sets of filter ports (1) is connected to the vacuum pump (4) through the support frame (2), and a solenoid valve (5) is provided in the middle of each set of filter ports (1).

2. The batch filtration device according to claim 1, characterized in that, The support frame (2) has a negative pressure flow channel (21) inside, and the bottom of the filter port (1) is inserted into the top of the negative pressure flow channel (21).

3. The batch filtration device according to claim 2, characterized in that, A pump interface (22) is led out from one side of the support frame (2), and the negative pressure flow channel (21) is connected to the vacuum pump (4) through the pump interface (22).

4. The batch filtration device according to claim 1, characterized in that, The crucible (3) is inserted at the top of the filter port (1), and the crucible (3) and the filter port (1) are sealed together by plugs (6) arranged in opposite directions.

5. The batch filtration device according to claim 4, characterized in that, The two sets of plugs (6) are arranged coaxially.

6. The batch filtration device according to claim 4, characterized in that, The plug (6) has a filter layer on one and / or both sides.

7. The batch filtration device according to claim 1, characterized in that, A fixing frame (7) is provided in the middle of the multiple sets of filter ports (1), and the fixing frame (7) is arranged parallel to the support frame (2).

8. The batch filtration device according to claim 7, characterized in that, A line frame (8) is installed on one side of the support frame (2).

9. The batch filtration device according to claim 8, characterized in that, A control board (9) is installed on the top of the line frame (8).

10. The batch filtration device according to claim 9, characterized in that, The control board (9) is electrically connected to the solenoid valve (5).

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