Quantitative receiving device for purified fractions

Abstract

The utility model provides a purified fraction quantitative receiving device and relates to the technical field of purification devices. The purified fraction quantitative receiving device comprises a control cabinet and a liquid separation bracket, the liquid separation support comprises a main pipeline, a weighing module and a plurality of liquid separation levels, each liquid separation level is provided with a liquid storage bag, a feeding pipe of each liquid storage bag is connected with the main pipeline in a sealed mode, a first control valve is installed between the feeding pipe and the main pipeline, and the weighing module is used for weighing the weight of the liquid storage bags; a second control valve is mounted at one end of the main pipeline and is communicated with a purification instrument; a third control valve is mounted at the other end of the main pipeline and is communicated with a waste liquid collecting device; the weighing module, the first control valve, the second control valve and the third control valve are all in signal connection with the control cabinet. According to the purified fraction quantitative receiving device provided by the utility model, the technical problems of low fraction receiving operation efficiency, low precision, many operators and easiness in pollution in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of purification devices, in particular to a purified fraction quantitative receiving device. Background Art

[0002] The purification process of small nucleic acid products usually involves retaining the crude product to be purified on the purification column, separating and eluting the product from impurities by changing the proportion of the mobile phase. The eluted fractions need to be collected into different containers according to volume or weight. Generally, more than 20 containers are required for each purification. Samples are then taken from these collection containers for in-process control testing and analysis. The analysis results are used to determine whether the purity, impurities and other indicators of the fractions meet the quality requirements, and then used to guide subsequent process steps.

[0003] In the purification production of preparative-grade small nucleic acid products, existing purification equipment is generally equipped with four fraction outlets, with a maximum of no more than eight. The number of fraction outlets is far less than the number required for fraction collection. Therefore, when the fraction is received, an operator is usually required to convert the time and flow rate into volume to determine whether the current container has completed collection, and then inform another operator to replace the fraction collection container at the fraction outlet to collect the next fraction.

[0004] During the small nucleic acid purification process, purification equipment operates continuously, while the time required to receive each fraction is very short, measured in minutes or even tens of seconds. Within this short timeframe, the removal, sealing, and placement of the previous fraction container and the installation and connection of the next fraction container must be completed, requiring at least three operators to operate continuously. Furthermore, the switching time between fraction containers is manually determined, which can be inaccurate. Furthermore, the commonly used fraction containers are plastic barrels, which remain open during the receiving process, making them susceptible to contamination and spillage. Utility Model Content

[0005] The purpose of the utility model is to provide a purified fraction quantitative receiving device to alleviate the technical problems of low fraction receiving operation efficiency, low precision, many operators and easy contamination in the prior art.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0007] The purified fraction quantitative receiving device provided by the utility model comprises a control cabinet and a liquid separation bracket;

[0008] The liquid separation bracket includes a main line, a weighing module and a plurality of liquid separation positions, each of which is equipped with a liquid storage bag, the feeding pipe of the liquid storage bag is sealedly connected to the main line, and a first control valve is installed between the two, and the weighing module is used to weigh the weight of the liquid storage bag;

[0009] A second control valve is installed at one end of the main line and is used to communicate with the purifier; a third control valve is installed at the other end of the main line and is used to communicate with the waste liquid collection device;

[0010] The weighing module, the first control valve, the second control valve and the third control valve are all signal-connected to the control cabinet.

[0011] Furthermore, the first control valve is installed on the main line.

[0012] Furthermore, the plurality of first control valves are all located on the same side of the liquid separation bracket.

[0013] Furthermore, the plurality of liquid sub-levels include two groups, the two groups of liquid sub-levels are respectively located on both sides of the main pipeline, and each group of liquid sub-levels includes a plurality of liquid sub-levels spaced apart along the axial direction of the main pipeline.

[0014] Furthermore, the distance between any one of the liquid distribution points in each group and the two adjacent liquid distribution points is equal.

[0015] Furthermore, a sliding wheel is installed at the bottom of the liquid separation bracket, and / or;

[0016] The bottom of the liquid separation bracket is movably provided with a foot.

[0017] Furthermore, the control cabinet is provided with a first communication connector, and the liquid separation bracket is provided with a second communication connector;

[0018] The first communication connector and the second communication connector are connected via a communication line.

[0019] Furthermore, the control cabinet is provided with a screen, an internet port, a mute button, an emergency stop switch, a power switch, a buzzer and an interface;

[0020] The network port, the mute button and the emergency stop switch are all arranged on the side wall of the control cabinet;

[0021] The power switch, the buzzer and the interface are all arranged on the top wall of the control cabinet;

[0022] The control cabinet is provided with an inclined surface, the inclined surface is connected to the top wall and is arranged inclinedly, and the screen is installed on the inclined surface.

[0023] Furthermore, casters are installed on the bottom of the control cabinet.

[0024] Furthermore, the liquid storage bag includes a liquid storage bag body and a feeding pipe, one end of the feeding pipe is connected to the liquid storage bag body, and the other end is connected to the main pipeline.

[0025] Based on the above technical solutions, the technical effects that can be achieved by this utility model are analyzed as follows:

[0026] The purified fraction quantitative receiving device provided by the utility model includes a control cabinet and a liquid separation bracket; the liquid separation bracket includes a main line, a weighing module and multiple liquid separation positions, each liquid separation position is installed with a liquid storage bag, the feed pipe of the liquid storage bag is sealed and connected to the main line, and a first control valve is installed between the two, and the weighing module is used to weigh the weight of the liquid storage bag; a second control valve is installed at one end of the main line and is used to communicate with the purifier; a third control valve is installed at the other end of the main line and is used to communicate with the waste liquid collection device; the weighing module, the first control valve, the second control valve and the third control valve are all connected to the control cabinet signal. The purified fraction quantitative receiving device includes two parts: a control cabinet and a liquid separation bracket. The control cabinet is used to control the operation of the main line and weighing module in the liquid separation bracket. The number of liquid separation levels can be configured according to actual production needs, and the number of liquid separation levels used at a time can also be configured according to actual production needs. The first control valve between the liquid storage bag and the main line on the liquid separation level to be used is opened for use, and closed for non-use. In addition, the number of liquid separation brackets in the purified fraction quantitative receiving device is also configured according to actual production needs, and the main lines in multiple liquid separation brackets can be used in series. When using the purified fraction quantitative receiving device, according to the purification production process, edit the recipe in the control cabinet, select the open liquid separation level, and set the weight parameters for each fraction received. After the fraction reception begins, run the recipe, and the fraction will be collected into the corresponding liquid storage bag as required. When the weight of the fraction in the liquid storage bag reaches the set value, it will automatically switch to the next liquid storage bag for packaging until the fraction collection is completed.

[0027] This device for quantitatively collecting purified fractions enables the collection of multiple batches of fractions during the small nucleic acid purification production process. The fraction collection process is controlled by a control cabinet, automating the collection process and reducing the impact and errors caused by human judgment. This also reduces the number of operators required and improves efficiency. The weight of each fraction collected is controlled jointly by a weighing module and a control cabinet, ensuring accurate quantitative collection of each fraction. The liquid storage belt is sealed with the main pipeline, preventing exposure of the fraction, reducing potential contamination risks, and avoiding the risk of tipping over in plastic barrels used to collect the fractions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1A schematic diagram of the structure of a liquid separation bracket in a purified fraction quantitative receiving device provided in an embodiment of the present utility model;

[0030] Figure 2 A front view of a liquid separation bracket in a quantitative receiving device for purified fractions provided in an embodiment of the present utility model;

[0031] Figure 3 A side view of a liquid separation bracket in a purified fraction quantitative receiving device provided in an embodiment of the present utility model;

[0032] Figure 4 A top view of a liquid separation bracket in a device for quantitatively receiving purified fractions provided in an embodiment of the present utility model;

[0033] Figure 5 A schematic diagram of the structure of a control cabinet in a purified fraction quantitative receiving device provided in an embodiment of the present utility model;

[0034] Figure 6 A front view of a control cabinet in a purified fraction quantitative receiving device provided in an embodiment of the present utility model;

[0035] Figure 7 A side view of a control cabinet in a purified fraction quantitative receiving device provided in an embodiment of the present invention;

[0036] Figure 8 A top view of a control cabinet in a purified fraction quantitative receiving device provided in an embodiment of the present utility model;

[0037] Figure 9 A schematic diagram of the method of using the purified fraction quantitative receiving device provided in an embodiment of the present utility model.

[0038] icon:

[0039] 100 - control cabinet; 110 - first communication connector; 120 - screen; 130 - network port; 140 - mute button; 150 - emergency stop switch; 160 - power switch; 170 - buzzer; 180 - interface; 190 - casters; 191 - rollers; 192 - brake;

[0040] 200-liquid separation bracket; 210-liquid separation level; 220-first control valve; 230-second control valve; 240-sliding wheel; 250-ground foot; 260-second communication connector; 270-handle. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0046] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0048] The existing technology has the technical problems of low efficiency and precision in fraction receiving operation, large number of operators and easy pollution.

[0049] In view of this, see Figures 1 to 9 The purified fraction quantitative receiving device provided by the embodiment of the present invention includes a control cabinet 100 and a liquid separation bracket 200; the liquid separation bracket 200 includes a main line, a weighing module and multiple liquid separation levels 210, each liquid separation level 210 is installed with a liquid storage bag, the feed pipe of the liquid storage bag is sealed and connected to the main line, and a first control valve 220 is installed between the two, and the weighing module is used to weigh the weight of the liquid storage bag; a second control valve 230 is installed at one end of the main line and is used to communicate with the purifier; a third control valve is installed at the other end of the main line and is used to communicate with the waste liquid collection device; the weighing module, the first control valve 220, the second control valve 230 and the third control valve are all connected to the control cabinet 100 signal.

[0050] Specifically, in this embodiment, see Figures 1 to 4 There are twenty liquid sub-levels 210 to meet the basic needs of the purification production process.

[0051] The device for quantitatively receiving purified fractions comprises a control cabinet 100 and a liquid separation bracket 200. The control cabinet 100 is used to control the operation of the main pipeline and weighing module in the liquid separation bracket 200. The number of liquid separation levels 210 can be configured according to actual production needs, and the number of liquid separation levels 210 used at a time can also be configured according to actual production needs. Opening the first control valve 220 between the liquid storage bag and the main pipeline on the liquid separation level 210 to be used indicates use; closing it indicates non-use. Furthermore, the number of liquid separation brackets 200 in the device for quantitatively receiving purified fractions can also be configured according to actual production needs. The main pipelines in multiple liquid separation brackets 200 can be used in series. When using the device for quantitatively receiving purified fractions, the recipe is edited in the control cabinet 100 according to the purification production process, the liquid separation level 210 to be opened is selected, and the weight parameters for each fraction received are set. After the fraction reception begins, the formula is run, and the fractions will be collected into the corresponding liquid storage bag as required. When the weight of the fraction in the liquid storage bag reaches the set value, it will automatically switch to the next liquid storage bag for packaging until the fraction collection is completed. The purified fraction quantitative receiving device realizes the multi-batch collection of fractions in the small nucleic acid purification production process. The control cabinet 100 controls the switching during the fraction collection process, realizes the automation of fraction collection, reduces the impact and errors that may be caused by human judgment, and also reduces the number of operators required, improving efficiency. The weight of each fraction collected is jointly controlled by the weighing module and the control cabinet 100, achieving the accuracy of the quantitative collection of each fraction. The liquid storage belt is sealed and connected to the main pipeline to avoid exposure of the fraction, reduce potential contamination risks, and avoid the risk of tipping over of plastic barrels when using plastic barrels to receive fractions.

[0052] The structure of the purified fraction quantitative receiving device is described in detail below:

[0053] In an optional solution of the embodiment of the present invention, the first control valve 220 is installed in the main line.

[0054] Specifically, the first control valve 220 is configured as a solenoid valve, and the solenoid valve is electrically connected to the control cabinet 100 , so that the control cabinet 100 controls the opening and closing of the solenoid valve.

[0055] The first control valve 220 is installed on the main line, so that the main line can be closed when the liquid storage bag is replaced, and there is no need to configure the first control valve 220 for each liquid storage bag, thereby reducing costs.

[0056] In an optional solution of the embodiment of the present utility model, the multiple first control valves 220 are all located on the same side of the liquid separation bracket 200 .

[0057] Specifically, the liquid separation bracket 200 is configured to be square, and the plurality of first control valves 220 are all located on the side wall of the liquid separation bracket 200 facing the user.

[0058] The plurality of first control valves 220 are all located on the same side of the liquid separation bracket 200 , which makes it convenient for users to install, disassemble or observe the first control valves 220 .

[0059] In an optional solution of the embodiment of the present invention, the multiple sub-liquid levels 210 include two groups, the two groups of liquid levels 210 are respectively located on both sides of the main line, and each group of liquid levels 210 includes multiple sub-liquid levels 210 arranged at intervals along the axial direction of the main line.

[0060] Specifically, in this embodiment, a total of twenty sub-liquid levels 210 are provided, and the twenty sub-liquid levels 210 are divided into two groups, and each group of liquid levels 210 includes ten sub-liquid levels 210 .

[0061] The two groups of liquid levels 210 are located on both sides of the main line, which reduces the height of the liquid separation bracket 200, makes it easier for users to install the liquid storage bag, and avoids the problem that the liquid separation bracket 200 is too high and the user cannot install the liquid storage bag to the highest liquid separation level 210.

[0062] In an optional solution of the embodiment of the present utility model, the distance between any liquid sub-level 210 and the two adjacent liquid sub-levels 210 in each group is equal.

[0063] Specifically, the ten liquid dispensing positions 210 in each group are evenly arranged, so that the distances between two adjacent liquid dispensing positions 210 are equal to match the volume of the liquid storage bag; and the aesthetics of the liquid dispensing bracket 200 is enhanced.

[0064] In an optional solution of the embodiment of the present utility model, a sliding wheel 240 is installed at the bottom of the liquid separation bracket 200, and / or a foot 250 is movably installed at the bottom of the liquid separation bracket 200.

[0065] Specifically, the bottom of the liquid-dispensing bracket 200 is equipped with a sliding wheel 240 to facilitate the movement of the liquid-dispensing bracket 200; alternatively, the bottom of the liquid-dispensing bracket 200 is movably equipped with a foot 250 to facilitate leveling the liquid-dispensing bracket 200 and fix the position of the liquid-dispensing bracket 200; alternatively, the bottom of the liquid-dispensing bracket 200 is equipped with movable wheels and the foot 250 is movably installed. When the liquid-dispensing bracket 200 is moved, the foot 250 is raised so that the movable wheel contacts the ground, thereby moving the liquid-dispensing bracket 200 via the movable wheel; when the liquid-dispensing bracket 200 is moved to the corresponding position, the foot 250 is lowered so that the foot 250 contacts the ground, thereby fixing the position of the liquid-dispensing bracket 200; and multiple foot 250 are provided, and the multiple foot 250 are arranged in a matrix. The liquid-dispensing bracket 200 can be leveled by adjusting the height of the multiple foot 250. Preferably, the foot 250 is threadedly connected to the bottom of the liquid-dispensing bracket 200. Furthermore, a handle 270 is installed on the side wall of the liquid dispensing bracket 200 .

[0066] The liquid separation bracket 200 can be conveniently moved by the movable wheels; the liquid separation bracket 200 can be conveniently fixed by the feet 250.

[0067] In an optional solution of the embodiment of the present utility model, the control cabinet 100 is provided with a first communication connector 110, and the liquid dispensing bracket 200 is provided with a second communication connector 260; the first communication connector 110 and the second communication connector 260 are connected via a communication line.

[0068] Specifically, all control signals are sent by the control system of the control cabinet 100 , and the power supply, gas source and network cable are all distributed from the control cabinet 100 to the liquid separation bracket 200 to ensure accurate control.

[0069] The first communication connector 110 and the second communication connector 260 are connected via a communication line, so that the control signal of the control cabinet 100 can be transmitted to the liquid dispensing bracket 200 , and the feedback signal of the liquid dispensing bracket 200 can be transmitted to the control cabinet 100 .

[0070] In the optional solution of the embodiment of the present utility model, see Figures 5 to 8 The control cabinet 100 is provided with a screen 120, an Internet port 130, a mute button 140, an emergency stop switch 150, a power switch 160, a buzzer 170 and an interface 180; the Internet port 130, the mute button 140 and the emergency stop switch 150 are all arranged on the side wall of the control cabinet 100; the power switch 160, the buzzer 170 and the interface 180 are all arranged on the top wall of the control cabinet 100; the control cabinet 100 is provided with an inclined surface, which is connected to the top wall and is arranged at an angle, and the screen 120 is installed on the inclined surface.

[0071] Specifically, the control cabinet 100 is configured in a square shape. The power switch 160 is located between the buzzer 170 and the interface 180, which is configured as a USB interface. The mute button 140 is located between the network port 130 and the emergency stop switch 150, and the mute button 140, the network port 130, and the emergency stop switch 150 are located on the same straight line. In this embodiment, the screen 120 is configured as an HMI to enable human-computer interaction.

[0072] The screen 120 is installed with an inclined surface to facilitate users to view and operate the screen 120.

[0073] In an optional solution of the embodiment of the present invention, casters 190 are installed at the bottom of the control cabinet 100.

[0074] Specifically, the caster 190 includes a roller 191 and a brake 192 , and the brake 192 is used to control whether the roller 191 can rotate.

[0075] Casters 190 are installed at the bottom of the control cabinet 100 to facilitate the movement and fixation of the control cabinet 100.

[0076] In an optional solution of the embodiment of the present invention, the liquid storage bag includes a liquid storage bag body and a feed pipe, one end of the feed pipe is connected to the liquid storage bag body, and the other end is connected to the main line; the liquid storage bag body and the feed pipe are integrally formed.

[0077] Specifically, the liquid storage bag body is used to hold the distillate, and the feed pipe is sealed and connected to the main pipeline. Furthermore, the liquid storage bag can be set as a soft bag, and the liquid storage bag with the liquid storage bag body and the feed pipe is realized by heating and stretching.

[0078] The liquid storage bag body and the feeding tube are integrally formed, which enhances the connection strength between the two and enhances the sealing effect between the two.

[0079] As another embodiment, the feed tube is plugged into the liquid storage bag body.

[0080] The following is an example of how to use the purified fraction quantitative receiving device:

[0081] See also Figure 9 For example, to collect 40 fractions, each weighing 7 kg, two dispensing racks 200 are used in series, each equipped with 20 10L liquid storage bags. In control cabinet 100, edit the fraction quantitative collection recipe and set the collection parameter to 7 kg. Connect the purifier to the dispensing racks 200 and open valves AV101, AV102, AV103, and AV104 on the main line in sequence.

[0082] After purification begins, the purified fraction fills the main line and enters the waste collection device. When the fraction reaches the collection standard, the quantitative fraction collection formula is initiated in control cabinet 100, including opening valve AV319 and closing valve AV104. The target fraction begins to be collected in liquid storage bag E1. When the fraction weight reaches the set value of 7 kg, valve AV320 is opened, valve AV319 is closed, and the second fraction collection begins. This process continues until all 20 fraction positions of the 2# fractionation rack 200 are completed. Then, the 1# fractionation rack 200 continues to be filled until the fraction collection is complete. Valve AV201 is closed, and valves AV102, AV103, and AV104 are opened. The fractions that are no longer needed for collection are then re-entered into the waste collection device until the purification method is complete.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A purified fraction quantitative receiving device, characterized in that: include: Control cabinet (100) and liquid dispensing bracket (200); The liquid separation bracket (200) comprises a main line, a weighing module and a plurality of liquid separation positions (210), each of the liquid separation positions (210) being equipped with a liquid storage bag, a feed pipe of the liquid storage bag being sealedly connected to the main line, and a first control valve (220) being installed between the two, and the weighing module being used to weigh the weight of the liquid storage bag; A second control valve (230) is installed at one end of the main line and is used to communicate with the purifier; a third control valve is installed at the other end of the main line and is used to communicate with the waste liquid collection device; The weighing module, the first control valve (220), the second control valve (230), and the third control valve are all connected to the control cabinet (100) via signals.

2. The purified fraction quantitative receiving device according to claim 1, characterized in that: The first control valve (220) is installed on the main line.

3. The purified fraction quantitative receiving device according to claim 2, characterized in that: The plurality of first control valves (220) are all located on the same side of the liquid separation bracket (200).

4. The purified fraction quantitative receiving device according to claim 3, characterized in that: The plurality of liquid sub-levels (210) include two groups, the two groups of liquid sub-levels (210) are respectively located on both sides of the main pipeline, and each group of liquid sub-levels (210) includes a plurality of liquid sub-levels (210) arranged at intervals along the axial direction of the main pipeline.

5. The purified fraction quantitative receiving device according to claim 4, characterized in that: The distance between any one of the liquid distribution points (210) in each group and the two adjacent liquid distribution points (210) is equal.

6. The purified fraction quantitative receiving device according to claim 1, characterized in that: A sliding wheel (240) is installed at the bottom of the liquid separation bracket (200), and / or; A foot (250) is movably mounted on the bottom of the liquid separation bracket (200).

7. The purified fraction quantitative receiving device according to claim 1, characterized in that: The control cabinet (100) is provided with a first communication connector (110), and the liquid separation bracket (200) is provided with a second communication connector (260); The first communication connector (110) and the second communication connector (260) are connected via a communication line.

8. The purified fraction quantitative receiving device according to claim 7, characterized in that: The control cabinet (100) is provided with a screen (120), a network port (130), a mute button (140), an emergency stop switch (150), a power switch (160), a buzzer (170) and an interface (180); The network port (130), the mute button (140) and the emergency stop switch (150) are all arranged on a side wall of the control cabinet (100); The power switch (160), the buzzer (170) and the interface (180) are all arranged on the top wall of the control cabinet (100); The control cabinet (100) is provided with an inclined surface, the inclined surface is connected to the top wall and is arranged at an inclination, and the screen (120) is installed on the inclined surface.

9. The purified fraction quantitative receiving device according to claim 8, characterized in that: Casters (190) are installed at the bottom of the control cabinet (100).

10. The purified fraction quantitative receiving device according to any one of claims 1 to 9, characterized in that: The liquid storage bag comprises a liquid storage bag body and a feeding pipe, one end of the feeding pipe is connected to the liquid storage bag body, and the other end is connected to the main line; The liquid storage bag body and the feeding pipe are integrally formed.

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