A method, apparatus and system for troubleshooting a pipe

Abstract

The application discloses a pipeline troubleshooting method, device and system, the pipeline troubleshooting method comprises the following steps: S1, speed reduction processing; S2, liquid discharge expansion; S3, pressure reduction unlocking; S4, recovery process, the pipeline troubleshooting device comprises a speed reduction device, an expansion device, an exclusion device and a recovery device, and the pipeline troubleshooting system comprises a controller, a liquid inlet pipeline, a centrifugal container, a liquid discharge pipeline and a pump for executing the pipeline troubleshooting method, through the technical scheme, pipeline faults can be accurately identified and excluded, the detection result is fed back rapidly, and the tolerance of continuous flow is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data processing, and in particular to a pipeline troubleshooting method, device and system. BACKGROUND

[0002] Cell therapy is currently an international medical frontier and a key development area. In recent years, the field of cell therapy has made new research achievements, and the research and evaluation of cell therapy products have been increasingly valued by domestic pharmaceutical companies and government departments. In view of the current rapid development trend of cell therapy product research, using cell harvesting automation equipment is the mainstream development direction.

[0003] In the current cell processing process, cells need to be sub-packaged into different specifications of preparations, and the failure of the preparation process will affect the cell viability state. When the operation is wrong or in the process of operation, the liquid transmission is easily affected by the extrusion transmission of the external device, which can easily cause gas to appear at the high point of the pipeline. This gas can cause liquid flow to be limited, and even cause blockage, which is called gas lock phenomenon. Continuing to run the preparation action under this phenomenon will cause idling, and the result is inaccurate. After the operator discovers it, manual processing is already too late, so it will seriously affect the accuracy of the cell preparation. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the present application provides a pipeline troubleshooting method, device and system. Through the technical scheme provided by the present application, the pipeline failure can be accurately identified and excluded, the detection result is fed back quickly, and the tolerance of continuous flow is improved.

[0005] The technical scheme adopted by the present application to solve its technical problems is:

[0006] A pipeline troubleshooting method, comprising:

[0007] After receiving the troubleshooting instruction, the current process is stopped, and the centrifugal speed of the centrifuge container connected with the liquid inlet pipeline is controlled to be adjusted from the initial speed to the troubleshooting speed, and maintained for a preset low speed time; the liquid inlet pipeline and the centrifuge container contain liquid;

[0008] The speed of the pump is controlled to a preset pump speed, so that the centrifuge container is subjected to liquid discharge expansion treatment; the pump drives the liquid in the liquid discharge pipeline to be discharged to a waste liquid container; the liquid discharge pipeline is connected with the centrifuge container;

[0009] After receiving the liquid discharge expansion treatment, the centrifugal speed of the centrifuge container is controlled to recover to the initial speed, so that the gas bubbles in the liquid inlet pipeline are drained to the centrifuge container;

[0010] After a preset recovery time, a recovery instruction of the current process is triggered to complete the troubleshooting of the liquid inlet pipeline.

[0011] Further, before the receiving the troubleshooting instruction, comprising:

[0012] Based on the liquid path data collected by the sensor, the pipeline state is determined;

[0013] When the pipeline state is the preparation state, continue to execute the current process preset pre-set time length, and switch to the running state after the preset pre-set time length;

[0014] When the pipeline state is the running state, the pipeline fault detection is started, and the fault detection result is obtained.

[0015] Further, after the pipeline state is the running state, the pipeline fault detection is started, and the fault detection result is obtained, comprising:

[0016] When the fault detection result is the gas lock fault, the troubleshooting instruction is triggered;

[0017] When the fault detection result is normal operation, continue to execute the pipeline fault detection.

[0018] Further, when the pipeline state is the running state, the pipeline fault detection is started, and the fault detection result is obtained, comprising:

[0019] Obtain initial data, historical weight and current weight; the initial data includes the initial weight of the liquid inlet bag and the concentration weight; the current weight is the weight of the liquid inlet bag collected after the historical weight is collected for a preset calculation time;

[0020] According to the historical weight and the current weight, the liquid bag weight difference is determined;

[0021] According to the initial data, the liquid bag weight difference and the pipeline fault detection formula, the fault detection result is determined.

[0022] Further, according to the initial data, the liquid bag weight difference and the pipeline fault detection formula, the fault detection result is determined, comprising:

[0023] When the liquid bag weight difference meets the detection threshold requirement, it is judged by the pipeline fault detection formula whether it is the fault detection result of the gas lock fault;

[0024] When the liquid bag weight difference does not meet the detection threshold requirement, it is determined as the fault detection result of normal operation.

[0025] Further, when the liquid bag weight difference meets the detection threshold requirement, it is judged by the pipeline fault detection formula whether it is the fault detection result of the gas lock fault, comprising:

[0026] The judgment value is obtained by the pipeline fault detection formula;

[0027] When the judgment value is less than the preset ratio, the fault detection result is determined as a gas lock fault;

[0028] When the judgment value is greater than or equal to the preset ratio, the fault detection result is determined as normal operation.

[0029] Further, the pipeline fault detection formula is:

[0030] (B-C) / (A-θ)=Z

[0031] Wherein, Z is the judgment value;

[0032] B is the initial weight of the liquid inlet bag;

[0033] C is the current weight;

[0034] A is the concentrated weight;

[0035] θ is a preset tolerance.

[0036] Further, the control pump speed to the preset pump speed, make the centrifugal container do the liquid discharge expansion treatment, comprising:

[0037] Close the control valve in the liquid inlet pipeline close to the centrifugal container, control the pump to run at the preset pump speed for a preset expansion time, to complete the liquid discharge expansion treatment.

[0038] In addition, the present application also provides a pipeline fault elimination device, comprising:

[0039] The speed reduction device is used to receive the fault elimination instruction, stop the current process, control the centrifugal speed of the centrifugal container connected with the liquid inlet pipeline to be adjusted from the initial speed to the elimination speed, and maintain the preset low speed for a period of time; the liquid inlet pipeline and the centrifugal container contain liquid;

[0040] The expansion device is used to control the speed of the pump to the preset pump speed, so that the centrifugal container does the liquid discharge expansion treatment; the pump drives the liquid in the liquid discharge pipeline to be discharged to the waste liquid container; the liquid discharge pipeline is connected with the centrifugal container;

[0041] The elimination device is used to receive the elimination recovery instruction after the liquid discharge expansion treatment, control the centrifugal speed of the centrifugal container to recover to the initial speed, and make the gas bubble in the liquid inlet pipeline be drained to the centrifugal container;

[0042] The recovery device is used to trigger the recovery instruction of the current process after a preset recovery time, to complete the fault elimination of the liquid inlet pipeline.

[0043] In addition, the application further provides a pipeline troubleshooting system, comprising a liquid inlet pipeline, a centrifugal container, a liquid outlet pipeline, a pump and a controller, wherein the controller is configured to execute the pipeline troubleshooting method as described above.

[0044] The application has the following advantages:

[0045] The application provides a pipeline troubleshooting method, device and system, wherein the pipeline troubleshooting method is used to automatically troubleshoot the faults in the pipeline, the pipeline troubleshooting device comprises a speed reduction device, a capacity expansion device, a troubleshooting device and a recovery device, and the pipeline troubleshooting system comprises a controller configured to execute the pipeline troubleshooting method. BRIEF DESCRIPTION OF DRAWINGS

[0046] The application will be further described below in combination with the drawings and examples.

[0047] Figure 1 is a flow chart of a pipeline troubleshooting method in the application;

[0048] Figure 2 is a flow chart of a pipeline troubleshooting device in the application;

[0049] Figure 3 is a schematic diagram of a pipeline troubleshooting system in the application. DETAILED DESCRIPTION

[0050] The concept, specific structure and technical effects of the application will be described clearly and completely in combination with the examples and drawings, so as to fully understand the purpose, features and effects of the application. Obviously, the described examples are only some of the examples of the application, but not all the examples. Based on the examples of the application, other examples obtained by those skilled in the art without creative labor are within the protection scope of the application. In addition, all the coupling / connection relationships involved in the patent do not mean that the components are directly connected, but means that a better coupling structure can be formed by adding or reducing coupling accessories according to the specific implementation. The technical features in the application can be combined interactively without conflict.

[0051] In the process of cell harvesting, the concept of continuous flow is involved, which is explained as follows: under normal working conditions, the liquid flows into a centrifugal container from one outlet through a transmission device (for example, a peristaltic pump), and then flows out from another outlet after centrifugal treatment, and the liquid can be continuously treated in the centrifugal container.

[0052] The application provides a pipeline troubleshooting method for solving the air lock fault in the liquid pipeline, wherein the air lock fault refers to the air bubble at the high position of the liquid inlet pipeline, which can cause the liquid flow to be limited or completely stopped. In the continuous flow cell preparation process, if the air lock fault cannot be solved in time, the cell viability and the cell processing efficiency will be affected, and further the preparation accuracy will be affected.

[0053] As shown in Figure 1 The pipeline troubleshooting method provided by the application comprises the following steps:

[0054] Step S1, speed reduction processing: after receiving the troubleshooting instruction, the current process is stopped, and the centrifugal speed of the centrifuge connected with the liquid inlet pipeline is controlled to be adjusted from the initial speed to the troubleshooting speed, and maintained for a preset low speed time; the liquid inlet pipeline and the centrifuge contain liquid.

[0055] In the above step S1, the application provides an embodiment, in which the troubleshooting instruction is an instruction triggered after identifying the air lock fault, the centrifuge is a container space in which the liquid is subjected to centrifugal rotation processing, the centrifuge includes two outlets, one of which is connected with the liquid inlet pipeline, the liquid inlet pipeline is a pipeline through which the liquid flows from the sample bag into the centrifuge, and the pipeline path can pass through a peristaltic pump, the liquid in the liquid inlet pipeline is transmitted into the centrifuge by the peristaltic pump, the initial speed can be the speed of centrifugal rotation in the current process, the troubleshooting speed is the speed of centrifugal rotation for solving the air lock, the centrifugal speed is reduced from the initial speed to the troubleshooting speed, and maintained for a preset low speed time, the preset low speed time can be 1 min, and in actual application, it can be adjusted according to actual conditions;

[0056] In this embodiment, before step S1 is performed, the following step is performed to detect and determine the fault of the pipeline:

[0057] Based on the liquid path data collected by the sensor, the pipeline state is determined, the sensor can adopt a bubble sensor, a pressure sensor or a photoelectric sensor, etc. The sensor has a detection function; the liquid path data is a digital signal or an analog signal collected by the sensor, the collected signal is simulated, that is, the collected historical and current signals are judged, the pipeline state is judged, the pipeline state is the process flow state of the liquid in the pipeline, the pipeline state includes a preparation state and a running state, the preparation state is that the collected signal jumps from the historical signal without liquid flow to the current signal with liquid flow within a preset time period, and the running state is that the collected signal maintains the signal with liquid flow within a preset time period without jump processing.

[0058] When the pipeline state is in the preparation state, a preset pre-lead time is continued to be executed, and the running state is switched after the preset pre-lead time; the preset pre-lead time is the time required for the liquid in the liquid inlet pipeline to be filled, and after the preset pre-lead time, the liquid fills the liquid inlet pipeline, so that the centrifugal container can be centrifugally rotated, and it can be indicated that the centrifugal container is in the running state.

[0059] When the pipeline state is in the running state, the pipeline fault detection is started, and a fault detection result is obtained. The pipeline fault detection is a detection process for detecting whether the liquid inlet pipeline is in a gas lock fault, which can be a timed detection, and the fault detection result of the liquid inlet pipeline is outputted at a fixed time. The fault detection result represents the result of whether the liquid inlet pipeline appears a gas lock fault.

[0060] When the fault detection result is a gas lock fault, the fault elimination instruction is triggered.

[0061] When the fault detection result is normal operation, the pipeline fault detection is continued to be executed.

[0062] In the embodiment, the pipeline fault detection includes the following steps:

[0063] Initial data, historical weight and current weight are obtained; the initial data includes initial weight of the liquid inlet liquid bag and concentrated weight; the current weight is the weight of the liquid inlet liquid bag collected after a preset calculation time period after the historical weight is collected.

[0064] According to the historical weight and the current weight, a liquid bag weight difference value is determined, and it can be understood that the difference between the historical weight and the current weight is calculated to obtain the liquid bag weight difference value.

[0065] According to the initial data, the liquid bag weight difference value and the pipeline fault detection formula, the fault detection result is determined, specifically:

[0066] When the liquid bag weight difference value meets the detection threshold requirement, whether it is a gas lock fault detection result is judged by the pipeline fault detection formula, including:

[0067] A judgment value is obtained by the pipeline fault detection formula, and the judgment value is not more than 1.

[0068] When the judgment value is less than a preset ratio value, it is determined that the fault detection result is a gas lock fault; the preset ratio value can be obtained according to historical experience statistics, such as a preset ratio value of 0.85 or 0.9.

[0069] When the judgment value is greater than or equal to the preset ratio value, it is determined that the fault detection result is normal operation.

[0070] The pipeline fault detection formula is:

[0071] (B-C) / (A-θ)=Z

[0072] Wherein, Z is the judgment value; B is the initial weight of the liquid inlet bag; C is the current weight; A is the concentrated weight; θ is a preset tolerance amount.

[0073] When the liquid bag weight difference value does not meet the detection threshold requirement, a fault detection result of normal operation is determined.

[0074] Step S2, liquid discharge expansion: control the rotating speed of the pump to a preset pump speed, so that the centrifugal container is subjected to liquid discharge expansion treatment; the pump drives the liquid in the liquid discharge pipeline to be discharged to the waste liquid container; the liquid discharge pipeline is connected with the centrifugal container, the control valve in the liquid inlet pipeline close to the centrifugal container is closed, and the pump is controlled to operate at the preset pump speed for a preset expansion time length, so as to complete the liquid discharge expansion treatment; the control valve is opened and closed by controlling the on-off valve, so that the liquid in the liquid inlet pipeline flows into and stops flowing into the centrifugal container; after the liquid in the centrifugal container is discharged to the waste liquid container, the air space in the centrifugal container will be expanded, which is a process of liquid discharge expansion, and the pump is arranged on the liquid discharge pipeline and rotates to discharge the liquid in the centrifugal container to the waste liquid bag.

[0075] In the above step S2, the present application provides an embodiment, in which the preset pump speed is controlled to control the flow rate of liquid discharge to be 100 mL / min, and the preset expansion time length is set to 2 min, which can be adjusted adaptively according to actual conditions in actual application.

[0076] Step S3, pressure reduction unlocking: receiving the exclusion recovery instruction after the liquid discharge expansion treatment, controlling the centrifugal rotating speed of the centrifugal container to recover to the initial rotating speed, and leading the bubbles in the liquid inlet pipeline to flow into the centrifugal container. Understandably, the air pressure in the centrifugal container will gradually decrease under the driving of the pump, and the liquid in the liquid inlet pipeline will be extracted to extract the liquid and gas in the liquid inlet pipeline, so that the gas or bubbles at a high position are extracted into the centrifugal container.

[0077] In the above step S3, the present application provides an embodiment, in which the preset acceleration is set to 200 RPM / S, RPM is the abbreviation of Revolutions Per Minute, that is, revolutions per minute, which represents the number of revolutions of the device per minute, and RPM / S is the change of rotating speed per second, which can be adjusted adaptively according to actual conditions in actual application.

[0078] Step S4, recovery procedure: after a preset recovery duration, a recovery instruction of the current procedure is triggered to complete troubleshooting of the liquid inlet pipeline.

[0079] Further, the present application also provides a pipeline troubleshooting device, as shown in the drawings, which comprises a speed reduction device, a capacity expansion device, a troubleshooting device and a recovery device. Figure 2

[0080] The speed reduction device is used to, after receiving a troubleshooting instruction, stop the current procedure, control the centrifugal speed of a centrifugal container connected with the liquid inlet pipeline to be adjusted from an initial speed to a troubleshooting speed, and maintain the low speed for a preset duration; the liquid inlet pipeline and the centrifugal container contain liquid;

[0081] The capacity expansion device is used to control the speed of a pump to a preset pump speed, so that the centrifugal container is subjected to liquid discharge capacity expansion treatment; the pump drives the liquid in the liquid discharge pipeline to be discharged to a waste liquid container; the liquid discharge pipeline is connected with the centrifugal container;

[0082] The troubleshooting device is used to, after receiving a troubleshooting recovery instruction after the liquid discharge capacity expansion treatment, control the centrifugal speed of the centrifugal container to be restored to the initial speed, so that the gas bubbles in the liquid inlet pipeline are drained to the centrifugal container;

[0083] The recovery device is used to, after a preset recovery duration, trigger a recovery instruction of the current procedure to complete troubleshooting of the liquid inlet pipeline.

[0084] Referring to Figure 3 The present application also provides a pipeline troubleshooting system, which comprises a liquid inlet pipeline, a centrifugal container 6, a liquid discharge pipeline, a pump 5 and a controller, and the controller is used to execute the pipeline troubleshooting method as described above.

[0085] The centrifugal container 6 is provided with a first interface 61 and a second interface 62 communicating with the inner cavity thereof, the liquid inlet ends of three liquid inlet pipelines are connected with liquid bags, the liquid outlet ends of the three liquid inlet pipelines are respectively provided with a first electromagnetic pinch valve 1, a second electromagnetic pinch valve 2 and a third electromagnetic pinch valve 3, the three liquid inlet pipelines are collected into one pipeline through the three electromagnetic pinch valves, the pipeline is connected to the first interface 61 of the centrifugal container 6, and the pipeline and the first interface 61 of the centrifugal container 6 are sequentially provided with a first gas bubble sensor 21, a fourth electromagnetic pinch valve 8 and a second gas bubble sensor 22.

[0086] ​Further, the second interface 62 of the centrifugal container 6 is connected to a pump 5, which is specifically selected as a peristaltic pump in the embodiment. The second interface 62 of the centrifugal container 6 and the inlet of the peristaltic pump 5 are sequentially connected with a first three-way pipe 610, a fifth electromagnetic pinch valve 14, a third bubble sensor 25 (the bubble sensor is used to detect whether liquid flows through the pipeline passing through the bubble sensor, which is a non-contact sensor) and a second pressure sensor 24 (the pressure sensor is used to detect the pressure in the pipeline passing through the pressure sensor, Figure 1 the pressure sensor is used to detect the pressure in the pipeline before and / or after the pump, which is a non-contact sensor, and indirectly detects the pressure in the centrifugal container, and can measure the pressure in the negative pressure state). The outlet of the peristaltic pump 5 is connected with a liquid discharge container 40, and the outlet of the peristaltic pump 5 and the liquid discharge container 40 are sequentially connected with a first pressure sensor 23 and a sixth electromagnetic pinch valve 11.

[0087] In the above embodiment, the pipeline of the outlet of the second interface 62 of the centrifugal unit 6 is provided with a first three-way pipe, and one outlet of the first three-way pipe is connected with the fifth electromagnetic pinch valve 14, and the other outlet is connected with a seventh electromagnetic pinch valve 13, and the outlet of the seventh electromagnetic pinch valve 13 is connected with an air filter 30. The seventh electromagnetic pinch valve 13 can be opened in the recovery process of step S4 to eliminate negative pressure and faster recover to normal operation state. In addition, three liquid discharge containers 40 are provided in the embodiment, and the outlet of the sixth electromagnetic pinch valve 11 is connected with the three liquid discharge containers 40 through a four-way joint 110.

[0088] The modules in the controller can be realized by software, hardware and a combination thereof in whole or in part. The controller comprises a processor, a memory, a network interface and a database connected by a system bus. The modules of the controller can be embedded in the processor in hardware form or independent of the processor, or stored in the memory in software form to be called and executed by the processor to perform the operations corresponding to the modules. The processor is used to provide computing and control capabilities. The memory comprises a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium. The database is used to store the data used in the culture medium replacement method in the above embodiment. The controller is connected with the pump and controls the pump, and controls the centrifugal rotation of the centrifugal container.

[0089] By the pipeline fault elimination method, device and system provided by the application, the pipeline fault can be accurately identified and eliminated without manual real-time monitoring, the air lock fault is automatically eliminated, and the tolerance of process continuous flow of equipment operation is improved.

[0090] The above is a specific description of the preferred embodiment of the application, but the application is not limited to the described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A method of troubleshooting a pipe, characterized by, Comprising: After receiving the troubleshooting instruction, the current process is suspended, and the centrifugal speed of the centrifugal container connected with the liquid inlet pipeline is controlled to be adjusted from the initial speed to the troubleshooting speed, and maintained for a preset low speed time; The liquid inlet pipeline and the centrifugal container contain liquid; The speed of the pump is controlled to a preset pump speed, and the centrifugal container is subjected to liquid discharge expansion treatment; the pump drives the liquid in the liquid discharge pipeline to be discharged to a waste liquid container; the liquid discharge pipeline is connected with the centrifugal container; After receiving the liquid discharge expansion treatment, the centrifugal speed of the centrifugal container is controlled to recover to the initial speed, so that the gas bubbles in the liquid inlet pipeline are drained to the centrifugal container; After a preset recovery time, a recovery instruction of the current process is triggered to complete the troubleshooting of the liquid inlet pipeline; Before receiving the troubleshooting instruction, comprising: Determine the pipeline state based on the liquid path data collected by the sensor; When the pipeline state is a pre-preparation state, continue to execute the current process for a preset pre-preparation time, and switch to a running state after the preset pre-preparation time; When the pipeline state is a running state, start pipeline fault detection to obtain a fault detection result; When the pipeline state is a running state, start pipeline fault detection to obtain a fault detection result, comprising: Obtain initial data, historical weight and current weight; the initial data includes initial weight of the liquid inlet liquid bag and concentration weight; the current weight is the weight of the liquid inlet liquid bag collected after a preset calculation time after the historical weight is collected; Determine the liquid bag weight difference value according to the historical weight and the current weight; Determine the fault detection result according to the initial data, the liquid bag weight difference value and the pipeline fault detection formula; Determine the fault detection result according to the initial data, the liquid bag weight difference value and the pipeline fault detection formula, comprising: When the liquid bag weight difference value meets the detection threshold requirement, determine whether it is a gas lock fault through the pipeline fault detection formula to obtain the fault detection result; When the liquid bag weight difference value does not meet the detection threshold requirement, determine the fault detection result as normal operation; When the liquid bag weight difference value meets the detection threshold requirement, determine whether it is a gas lock fault through the pipeline fault detection formula to obtain the fault detection result, comprising: Obtain a judgment value through the pipeline fault detection formula; When the judgment value is less than a preset ratio, determine the fault detection result as a gas lock fault; When the judgment value is greater than or equal to the preset ratio, determine the fault detection result as normal operation; The pipeline fault detection formula is: (B-C) / (A-θ)=Z Wherein, Z is the judgment value; B is the initial weight of the liquid inlet liquid bag; C is the current weight; A is the concentration weight; θ is a preset tolerance.

2. The plumbing troubleshooting method according to claim 1, wherein, After the pipeline state is in a running state, the pipeline fault detection is started to obtain a fault detection result, comprising: When the fault detection result is a gas lock fault, trigger the troubleshooting instruction; When the fault detection result is normal operation, continue to execute pipeline fault detection.

3. The plumbing troubleshooting method of claim 1, wherein, The speed of the pump is controlled to a preset pump speed, and the centrifugal container is subjected to liquid discharge expansion treatment, comprising: Close the control valve in the liquid inlet pipeline close to the centrifugal container, control the pump to run at the preset pump speed for a preset expansion duration to complete the liquid discharge expansion treatment.

4. A pipe troubleshooting device for implementing the pipe troubleshooting method according to any one of claims 1 to 3, characterized by, The method comprises the following steps: The speed reduction device is used to receive the troubleshooting instruction, stop the current process, control the centrifugal speed of the centrifugal container connected with the liquid inlet pipeline to be adjusted from the initial speed to the troubleshooting speed, and maintain the preset low speed for a duration; The liquid inlet pipeline and the centrifugal container contain liquid; The expansion device is used to control the speed of the pump to the preset pump speed, so that the centrifugal container is subjected to liquid discharge expansion treatment; the pump drives the liquid in the liquid discharge pipeline to be discharged to the waste liquid container; the liquid discharge pipeline is connected with the centrifugal container; The troubleshooting device is used to receive the recovery instruction after the liquid discharge expansion treatment, control the centrifugal speed of the centrifugal container to be recovered to the initial speed, and make the bubbles in the liquid inlet pipeline be drained to the centrifugal container; The recovery device is used to trigger the recovery instruction of the current process after a preset recovery duration to complete the troubleshooting of the liquid inlet pipeline.

5. A plumbing troubleshooting system, characterized by, The method comprises the following steps: a liquid inlet pipeline, a centrifugal container, a liquid discharge pipeline, a pump, and a controller, wherein the controller is used to execute the pipeline troubleshooting method according to any one of claims 1 to 3.

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