Glass cell tank peristaltic pump flow monitoring method and device

Abstract

The present invention relates to the field of flow monitoring technology, and in particular to a method and device for monitoring the flow of a peristaltic pump of a glass cell tank. Since the control system of the glass cell tank has particularity in controlling the peristaltic pump, the flow control of the peristaltic pump is controlled by time conversion, and since the liquid pumped in and out of the cell tank generally has a certain viscosity, the model of the pump connecting pipe has a great influence on the flow control of the peristaltic pump. Therefore, compared with the prior art, this embodiment is first classified according to the connecting pipe parameters, and then different peristaltic pump flow monitoring methods are adopted according to different connecting pipe parameters to improve the accuracy of peristaltic pump flow monitoring.

Description

Technical Field

[0001] The present invention relates to the technical field of flow monitoring, and in particular to a flow monitoring method and device for a peristaltic pump of a glass cell tank. Background Art

[0002] The function of the cell tank is to provide an optimized physical and chemical environment for cell metabolism, so that cells can grow faster and better and obtain more products. The use of glass tanks is easy to observe and judge the culture process, especially when used in laboratories, so that problems can be discovered and adjusted in time. A good glass cell tank should meet the following requirements: 1) The support frame is made of 304 stainless steel with a tight structure. The inner wall of the tank support surface should be smooth, firm, corrosion-resistant and easy to clean; 2) It has good gas-liquid-solid contact and mixing performance and efficient heat, mass and momentum transfer performance; 3) It reduces energy consumption while maintaining the requirements of biological culture; 4) It has good heat exchange performance to maintain the optimal temperature for biological culture; The reactor should provide a good physical environment for the cells. During the culture process, the temperature, pH, dissolved oxygen, stirring and appropriate mixing speed should be controlled to ensure the stable growth of the cells. The sterility of the tank should be ensured throughout the culture cycle. Reasonable peristaltic pumps, pipelines and interfaces should be configured to enable quantitative inoculation, feeding, alkali supplementation, sugar supplementation and other operations; The peristaltic pump can realize important functions such as flow control, volume control or feeding in the cell tank. The flow accuracy and flow attenuation characteristics of the peristaltic pump will directly affect the reliability of the cell experimental analysis process. Therefore, it is of great significance to monitor the flow transmission accuracy and flow attenuation characteristics of the peristaltic pump of the glass cell tank during cell experiments.

[0003] There are technical solutions for peristaltic pump flow monitoring in the prior art. For example, Chinese invention patent (CN105487561A) discloses a peristaltic pump flow control system based on LabVIEW fuzzy PID controller, including a drive circuit, a peristaltic pump, a flow sensor, a data acquisition card, an A / D conversion circuit, a fuzzy PID controller, a D / A conversion circuit, a single-chip microcomputer and a display screen. The output end of the drive circuit is electrically connected to the peristaltic pump, the output end of the peristaltic pump is connected to the input end of the flow sensor, the output end of the flow sensor is connected to the input end of the data acquisition card, the output end of the data acquisition card is connected to the input end of the A / D conversion circuit, the output end of the A / D conversion circuit is connected to the input end of the fuzzy PID controller, the output end of the fuzzy PID controller is connected to the input end of the D / A conversion circuit, the output end of the D / A conversion circuit is connected to the input end of the single-chip microcomputer, the output end of the single-chip microcomputer is connected to the drive circuit, the fuzzy PID controller is connected to the display screen through a line, and the fuzzy PID controller is embedded with a LabVIEW software system. The above scheme can realize flow monitoring and control of the peristaltic pump. However, the above scheme does not consider the influence of the connecting pipe on the flow monitoring when monitoring the flow of the peristaltic pump, which leads to low accuracy of flow monitoring. Summary of the invention

[0004] In view of this, the present invention proposes a method and device for monitoring the flow rate of a peristaltic pump of a glass cell tank, which are used to improve the accuracy of peristaltic pump flow rate monitoring.

[0005] In order to achieve the above object, a method for monitoring the flow rate of a peristaltic pump of a glass cell tank is provided, the method comprising the following steps:

[0006] S1: The control system of the cell tank controls the start and stop of the peristaltic pump to perform exhaust operations of the peristaltic pump and the connecting pipe;

[0007] S2: Get the model of the connecting pipe. If it is a No. 16 pipe, go to S3; if it is a No. 25 pipe, go to S4;

[0008] S3: using a first flow monitoring method to monitor the flow of the peristaltic pump of the glass cell tank;

[0009] Wherein, the S3 is specifically:

[0010] S3.1; Connecting the connecting pipe to an ultrasonic flow meter;

[0011] S3.2: Start the peristaltic pump, and enter S3.3 after the peristaltic pump enters the stable working range;

[0012] S3.3: Acquire flow data of the peristaltic pump according to the ultrasonic flow meter;

[0013] S3.4: Calculate the average value of the peristaltic pump flow data and compare it with the theoretical data of the control system of the glass cell tank. If the error is less than the preset value, proceed to the next step. Otherwise, it is prompted that the peristaltic pump flow monitoring is unqualified.

[0014] S3.5: Calculate the coefficient of variation of the peristaltic pump flow data; if the coefficient of variation is less than the preset coefficient of variation, output that the peristaltic pump flow monitoring is qualified; otherwise, prompt that the peristaltic pump flow monitoring is unqualified;

[0015] S4: using a second flow monitoring method to monitor the flow of the peristaltic pump of the glass cell tank;

[0016] The second flow monitoring method is specifically as follows:

[0017] S4.1: Start the peristaltic pump, and enter S4.2 after the peristaltic pump enters the stable working range;

[0018] S4.2; introducing the pumped liquid of the peristaltic pump into an electronic balance, and recording the weight increase of the pumped liquid at preset time intervals;

[0019] S4.3: Processing the weight increase data of the pumped liquid recorded in S4.2 to obtain peristaltic pump flow data;

[0020] S4.4: Calculate the average value of the peristaltic pump flow data and compare it with the theoretical data of the control system of the glass cell tank. If the error is less than the preset value, proceed to the next step. Otherwise, it is prompted that the peristaltic pump flow monitoring is unqualified.

[0021] S4.5: Calculate the coefficient of variation of the peristaltic pump flow data; if the coefficient of variation is less than the preset coefficient of variation, output that the peristaltic pump flow monitoring is qualified; otherwise, output that the peristaltic pump flow monitoring is unqualified;

[0022] S5: Output the peristaltic pump monitoring result.

[0023] Preferably, in S2, the model of the connecting pipe is manually input during flow monitoring.

[0024] Preferably, in S2, the parameters of the No. 16 tube are: silicone material, tube diameter is 3.2 mm, and length is 6.4 mm; the parameters of the No. 25 tube are: silicone material, tube diameter is 4.8 mm, and length is 8 mm;

[0025] Preferably, in S3.1, the ultrasonic flow meter consists of a transmitter and a receiver.

[0026] Preferably, in S3.4, the theoretical data of the control system of the glass cell tank is a rated flow rate at a rated speed of the peristaltic pump.

[0027] Preferably, in S3.4, the preset value is 5%.

[0028] Preferably, in S3.5, the preset coefficient of variation is 0.05.

[0029] Preferably, in S4.2, the graduation value of the electronic balance is 10 mg; and the preset time is set to 5 s.

[0030] Preferably, in S4.3, the data processing includes removing abnormal data and data conversion.

[0031] According to another aspect of the present invention, a glass cell tank peristaltic pump flow monitoring device is provided, the device adopts the above-mentioned glass cell tank peristaltic pump flow monitoring method, and the glass cell tank peristaltic pump flow monitoring device comprises:

[0032] A cell tank control system, wherein the cell tank control system controls the start and stop of the peristaltic pump to perform exhaust operations of the peristaltic pump and the connecting pipe;

[0033] Connection pipe model determination module: used to obtain the model of the connection pipe. If it is a No. 16 pipe, it enters the first flow monitoring module; if it is a No. 25 pipe, it enters the second flow monitoring module;

[0034] A first flow monitoring module, used to monitor the flow of the peristaltic pump of the glass cell tank using a first flow monitoring method;

[0035] A second flow monitoring module, used to monitor the flow of the peristaltic pump of the glass cell tank using a second flow monitoring method;

[0036] The peristaltic pump monitoring result output module is used to output the peristaltic pump monitoring result.

[0037] The advantages and beneficial effects of the present invention are:

[0038] Since the control system of the glass cell tank has the particularity of controlling the peristaltic pump, the flow control of the peristaltic pump is controlled by time conversion, and since the liquid pumped in and out of the cell tank generally has a certain viscosity, the model of the pump connecting pipe has a great influence on the flow control of the peristaltic pump. Therefore, compared with the prior art, this embodiment is first classified according to the connecting pipe parameters, and then different peristaltic pump flow monitoring methods are adopted according to different connecting pipe parameters to improve the accuracy of peristaltic pump flow monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the description of the present invention or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A flow chart of a method for monitoring flow of a peristaltic pump of a glass cell tank provided by an embodiment of the present invention;

[0041] Figure 2 A flow chart of using the first flow monitoring method to monitor the flow of the peristaltic pump of the glass cell tank provided in an embodiment of the present invention;

[0042] Figure 3 A measurement schematic diagram of an ultrasonic flowmeter provided in an embodiment of the present invention;

[0043] Figure 4 A flow chart of using the second flow monitoring method to monitor the flow of the peristaltic pump of the glass cell tank provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0045] Before using a peristaltic pump for flow control, volume control or as a feeding tool, the flow of the peristaltic pump needs to be monitored. The same model of peristaltic pump uses different connecting pipe diameters, and the pumped liquid is affected differently by the viscosity of the pipe wall. In addition, the peristaltic pump relies on rollers to squeeze the connecting pipe for liquid transmission. The flow accuracy and long-term operation stability are affected by the elastic changes of the connecting pipe. The flow rate per unit time is different, resulting in large fluctuations in the accuracy of the peristaltic pump monitoring method. For example, the standard configuration in the glass cell tank control cabinet is Watson-Marlow The model 114 flow pump generally uses a tube with a diameter of 16 or 25, among which the size parameters of the 16 tube are: (16#: 3.2×6.4), and the size parameters of the 25 tube are (25#: 4.8×8). For equipment such as cell tanks that require precise parameters, different types of tubes may cause fluctuations in the pump flow of the peristaltic pump, which will affect the flow transmission accuracy and flow attenuation characteristics of the peristaltic pump. Therefore, in order to improve the flow monitoring accuracy of precision instruments such as peristaltic pumps such as glass cell tanks, this embodiment designs the technical solution of the following embodiments.

[0046] Embodiment 1: This embodiment includes a method for monitoring the flow rate of a peristaltic pump in a glass cell tank, as shown in the attached Figure 1 As shown, the method includes:

[0047] S1: The control system of the cell tank controls the start and stop of the peristaltic pump to perform exhaust operations of the peristaltic pump and the connecting pipe;

[0048] The peristaltic pump of the cell tank is a standard pump of Senmaro model 114;

[0049] Specifically, the standard configuration in the control cabinet is a Watson-Marlow model 114 pump, and the control system of the cell tank is used to control the start and stop of the peristaltic pump according to the peristaltic pump number and start and stop time input in the operation interface, so as to perform the exhaust operation of the peristaltic pump and the connecting pipe; through this step, the air in the peristaltic pump and the connecting pipe can be emptied to reduce the influence of air on the subsequent peristaltic pump flow monitoring;

[0050] S2: Get the model of the connecting pipe. If it is a No. 16 pipe, go to S3; if it is a No. 25 pipe, go to S4;

[0051] In the peristaltic pump connection pipe of the cell tank, the commonly used connecting pipe is No. 16 pipe or No. 25 pipe. In addition, since the peristaltic pump model is generally 114 pump, the No. 19 pipe is too thin and the peristaltic pump head cannot press the No. 19 pipe wall tightly, so the No. 19 pipe is generally not used on the 114 pump;

[0052] Specifically, the model of the connecting pipe is manually input during flow monitoring;

[0053] Furthermore, the parameters of the No. 16 tube are: silicone material, tube diameter 3.2mm, length 6.4mm; the parameters of the No. 25 tube are: silicone material, tube diameter 4.8mm, length 8mm;

[0054] In this step, since the control system of the glass cell tank has the particularity of controlling the peristaltic pump, its flow control of the peristaltic pump is controlled by time conversion, and since the liquid pumped in and out of the cell tank generally has a certain viscosity, and the peristaltic pump relies on rollers to squeeze the connecting tube for liquid transmission, its flow accuracy and long-term operation stability are affected by the elastic changes of the connecting tube, and the flow rate per unit time is different. Therefore, the model of the pump connecting tube has a greater impact on the flow control of the peristaltic pump. Therefore, compared with the prior art, this embodiment is first classified according to the connecting tube parameters, and then different peristaltic pump flow monitoring methods are adopted according to different connecting tube parameters to improve the accuracy of peristaltic pump flow monitoring.

[0055] S3: using a first flow monitoring method to monitor the flow of the peristaltic pump of the glass cell tank;

[0056] Among them, as attached Figure 2 As shown, the S3 is specifically:

[0057] S3.1; Connecting the connecting pipe to an ultrasonic flow meter;

[0058] Ultrasonic flowmeter refers to a flowmeter developed based on the principle that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in a stationary medium. It is mainly composed of a transmitter and a receiver; Figure 3 shows a measurement schematic diagram of an ultrasonic flow meter;

[0059] As attached Figure 3 As shown, P1 and P2 are the installation positions of the transmitter and receiver of the ultrasonic flowmeter, L is the installation distance between the transmitter and the receiver, θ is the sound channel angle of the ultrasonic flowmeter, and D is the diameter of the connecting pipe;

[0060] S3.2: Start the peristaltic pump, and enter S3.3 after the peristaltic pump enters the stable working range;

[0061] After the peristaltic pump is started, it takes a while for the speed to increase, so it needs to enter the stable working range after a period of time. In the stable working range, the speed of the peristaltic pump is a constant value, and the shaft power is a constant value;

[0062] S3.3: Acquire flow data of the peristaltic pump according to the ultrasonic flow meter;

[0063] Among them, since the diameter of No. 16 pipe is relatively thin, the flow rate of the fluid is relatively fast at the rated speed of the peristaltic pump. The ordinary weighing method with higher collection accuracy is affected by the response time of the balance, and the accuracy of the data will be affected. Therefore, this step adopts an ultrasonic flowmeter with more sensitive collection to realize the collection of flow data, which can greatly improve the accuracy of flow data collection;

[0064] S3.4: Calculate the average value of the peristaltic pump flow data and compare it with the theoretical data of the control system of the glass cell tank. If the error is less than the preset value, proceed to the next step. Otherwise, it is prompted that the peristaltic pump flow monitoring is unqualified.

[0065] Wherein, the theoretical data of the control system of the glass cell tank is the rated flow rate at the rated speed of the peristaltic pump;

[0066] Specifically, the preset value is 5%;

[0067] S3.5: Calculate the coefficient of variation of the peristaltic pump flow data; if the coefficient of variation is less than the preset coefficient of variation, output that the peristaltic pump flow monitoring is qualified; otherwise, prompt that the peristaltic pump flow monitoring is unqualified;

[0068] Wherein, the coefficient of variation is the ratio of the standard deviation of the flow data to the mean value;

[0069] The coefficient of variation can be used to evaluate the discreteness of the monitoring data and thus the stability of the peristaltic pump's outflow data.

[0070] Wherein, the preset coefficient of variation is 0.05.

[0071] S4: using a second flow monitoring method to monitor the flow of the peristaltic pump of the glass cell tank;

[0072] Among them, as attached Figure 4 As shown, the second flow monitoring method is specifically:

[0073] S4.1: Start the peristaltic pump, and enter S4.2 after the peristaltic pump enters the stable working range;

[0074] After the peristaltic pump is started, it takes a while for the speed to increase, so it needs to enter the stable working range after a period of time. In the stable working range, the speed of the peristaltic pump is a constant value, and the shaft power is a constant value;

[0075] S4.2; introducing the pumped liquid of the peristaltic pump into an electronic balance, and recording the weight increase of the pumped liquid at preset time intervals;

[0076] Wherein, the graduation value of the electronic balance is 10 mg;

[0077] Specifically, the preset time is set to 5s. If the preset time is set to a larger value, relatively fewer data points are collected, which affects the flow calculation accuracy of the peristaltic pump. If the preset time is set to a smaller value, it takes a certain amount of time for a precision weighing instrument such as an electronic balance to display an accurate value. Therefore, too large a collection frequency may cause the collected data to be distorted, which is not conducive to the flow calculation accuracy of the peristaltic pump. Therefore, the preset time set in this embodiment is 5s;

[0078] S4.3: Processing the weight increase data of the pumped liquid recorded in S4.2 to obtain peristaltic pump flow data;

[0079] Wherein, the data processing includes removing abnormal data and data conversion;

[0080] The abnormal data refers to data that is obviously beyond the normal range;

[0081] The data collected through the above steps is weight data, but in this embodiment, flow data needs to be obtained, so data conversion is required, wherein the data conversion is specifically: obtaining the density ρ of the pumped liquid at the operating temperature of the peristaltic pump, and then obtaining the peristaltic pump flow data according to the ratio of the weight increase data to the density ρ;

[0082] S4.4: Calculate the average value of the peristaltic pump flow data and compare it with the theoretical data of the control system of the glass cell tank. If the error is less than the preset value, proceed to the next step. Otherwise, it is prompted that the peristaltic pump flow monitoring is unqualified.

[0083] Wherein, the theoretical data of the control system of the glass cell tank is the rated flow rate at the rated speed of the peristaltic pump;

[0084] Specifically, the preset value is 5%;

[0085] S4.5: Calculate the coefficient of variation of the peristaltic pump flow data; if the coefficient of variation is less than the preset coefficient of variation, output that the peristaltic pump flow monitoring is qualified; otherwise, output that the peristaltic pump flow monitoring is unqualified;

[0086] Wherein, the coefficient of variation is the ratio of the standard deviation of the flow data to the mean value;

[0087] The coefficient of variation can be used to evaluate the discreteness of the monitoring data and thus the stability of the peristaltic pump's outflow data.

[0088] Wherein, the preset coefficient of variation is 0.05;

[0089] Since the peristaltic pump has a slow liquid flow rate in the connecting pipe at rated speed when connected to the No. 25 pipe, the weighing method can be used to collect flow data. In this step, compared with the ultrasonic flow detection method, the method in this step is less affected by environmental interference;

[0090] This embodiment provides flow monitoring methods based on different principles according to different flow rates, which can effectively improve the accuracy of peristaltic pump flow monitoring.

[0091] S5: Outputting the peristaltic pump monitoring result;

[0092] Specifically, the peristaltic pump monitoring result is displayed and output through the control system of the violent cell tank.

[0093] Embodiment 2: This embodiment includes a glass cell tank peristaltic pump flow monitoring device, which adopts a glass cell tank peristaltic pump flow monitoring method of embodiment 1. The glass cell tank peristaltic pump flow monitoring device includes:

[0094] A cell tank control system, wherein the cell tank control system controls the start and stop of the peristaltic pump to perform exhaust operations of the peristaltic pump and the connecting pipe;

[0095] Connection pipe model determination module: used to obtain the model of the connection pipe. If it is a No. 16 pipe, it enters the first flow monitoring module; if it is a No. 25 pipe, it enters the second flow monitoring module;

[0096] A first flow monitoring module, used to monitor the flow of the peristaltic pump of the glass cell tank using a first flow monitoring method;

[0097] A second flow monitoring module, used to monitor the flow of the peristaltic pump of the glass cell tank using a second flow monitoring method;

[0098] The peristaltic pump monitoring result output module is used to output the peristaltic pump monitoring result.

[0099] Embodiment 3: This embodiment includes a computer-readable storage medium on which a data processing program is stored. The data processing program is executed by a processor to perform various steps of a glass cell tank peristaltic pump flow monitoring method of embodiment 1.

[0100] It should be understood by those skilled in the art that the embodiments of this article can be provided as methods, devices (equipment), or computer program products. Therefore, this article can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Including but not limited to RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, tape, disk storage or other magnetic storage device, or any other medium that can be used to store desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media generally contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0101] This document is described with reference to flowcharts and / or block diagrams of methods, apparatuses (devices), and computer program products according to the embodiments of this document. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0102] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0103] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods of the technology of the present invention, and are not intended to impose any formal restrictions on the implementation methods of the technology of the present invention. Any person skilled in the art may make some changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as the technology or embodiments that are essentially the same as the present invention. Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here, and that various obvious changes, readjustments and substitutions can be made to those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for monitoring the flow rate of a peristaltic pump in a glass cell tank, characterized in that: The method comprises the following steps: S1: The control system of the cell tank controls the start and stop of the peristaltic pump to perform exhaust operations of the peristaltic pump and the connecting pipe; S2: Get the model of the connecting pipe. If it is a No. 16 pipe, go to S3; if it is a No. 25 pipe, go to S4; S3: using a first flow monitoring method to monitor the flow of the peristaltic pump; Wherein, the S3 is specifically: S3.1: Connecting the connecting pipe to an ultrasonic flow meter; S3.2: Start the peristaltic pump, and enter S3.3 after the peristaltic pump enters the stable working range; S3.3: Acquire flow data of the peristaltic pump according to the ultrasonic flow meter; S3.4: Calculate the average value of the peristaltic pump flow data and compare it with the theoretical data of the control system of the cell tank. If the error is less than the preset value, proceed to the next step. Otherwise, it indicates that the peristaltic pump flow monitoring is unqualified. S3.5: Calculate the coefficient of variation of the peristaltic pump flow data; if the coefficient of variation is less than the preset coefficient of variation, output that the peristaltic pump flow monitoring is qualified; otherwise, prompt that the peristaltic pump flow monitoring is unqualified; S4: using a second flow monitoring method to monitor the flow of the peristaltic pump; The second flow monitoring method is specifically as follows: S4.1: Start the peristaltic pump, and enter S4.2 after the peristaltic pump enters the stable working range; S4.2: introducing the pumped liquid of the peristaltic pump into an electronic balance, and recording the weight increase of the pumped liquid at preset time intervals; S4.3: Processing the weight increase data of the pumped liquid recorded in S4.2 to obtain peristaltic pump flow data; S4.4: Calculate the average value of the peristaltic pump flow data and compare it with the theoretical data of the control system of the cell tank. If the error is less than the preset value, proceed to the next step. Otherwise, it is prompted that the peristaltic pump flow monitoring is unqualified. S4.5: Calculate the coefficient of variation of the peristaltic pump flow data; if the coefficient of variation is less than the preset coefficient of variation, output that the peristaltic pump flow monitoring is qualified; otherwise, output that the peristaltic pump flow monitoring is unqualified; S5: Output the peristaltic pump monitoring result.

2. A method for monitoring flow of a peristaltic pump in a glass cell tank according to claim 1, characterized in that: In S2, the model of the connecting pipe is manually input during flow monitoring.

3. A method for monitoring flow of a peristaltic pump in a glass cell tank according to claim 1, characterized in that: In S3.1, the ultrasonic flow meter consists of a transmitter and a receiver.

4. A method for monitoring flow of a peristaltic pump of a glass cell tank according to claim 3, characterized in that: In S3.4, the theoretical data of the control system of the cell tank is the rated flow rate at the rated speed of the peristaltic pump.

5. A method for monitoring flow of a peristaltic pump of a glass cell tank according to claim 3, characterized in that: In S3.4, the preset value is 5%.

6. A method for monitoring flow of a peristaltic pump of a glass cell tank according to claim 3, characterized in that: In S3.5, the preset coefficient of variation is 0.

05.

7. A method for monitoring flow of a peristaltic pump in a glass cell tank according to claim 1, characterized in that: In S4.2, the graduation value of the electronic balance is 10 mg; and the preset time is set to 5 s.

8. A method for monitoring flow of a peristaltic pump in a glass cell tank according to claim 1, characterized in that: In S4.3, the data processing includes removing abnormal data and data conversion.

9. A glass cell tank peristaltic pump flow monitoring device, the device adopts a glass cell tank peristaltic pump flow monitoring method according to any one of claims 1 to 8, characterized in that: The peristaltic pump flow monitoring device comprises: A cell tank control system, wherein the cell tank control system controls the start and stop of the peristaltic pump to perform exhaust operations of the peristaltic pump and the connecting pipe; A connecting pipe model determination module is used to obtain the model of the connecting pipe. If it is a No. 16 pipe, the first flow monitoring module is entered; if it is a No. 25 pipe, the second flow monitoring module is entered; A first flow monitoring module, used for monitoring the flow of the peristaltic pump using a first flow monitoring method; A second flow monitoring module, used for monitoring the flow of the peristaltic pump using a second flow monitoring method; The peristaltic pump monitoring result output module is used to output the peristaltic pump monitoring result.

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