Method and device for detecting pipelines of hydraulic support group and electronic equipment

Abstract

The present disclosure provides a hydraulic support group pipeline detection method and device and electronic equipment, which belong to the technical field of mine equipment, and the specific implementation scheme is as follows: first pipeline data of a hydraulic support in a hydraulic support group and second pipeline data of a liquid supply pump for supplying liquid to the hydraulic support are acquired; based on the first pipeline data and the second pipeline data, a working state of the hydraulic support group is determined; based on the working state, a pipeline data acquisition mode of the hydraulic support group is determined, and the hydraulic support group is switched to the pipeline data acquisition mode. By determining the current working state of the hydraulic support group and selecting the appropriate pipeline data acquisition mode, compared with the traditional acquisition of pipeline data of all hydraulic supports of the hydraulic support group, the cost of data acquisition can be saved, the data processing amount of the automatic control unit is reduced, and the efficiency and practicality of the hydraulic support management detection are improved.

Description

Technical Field

[0001] This disclosure relates to the field of mining equipment technology, and in particular to a pipeline testing method, device and electronic equipment for hydraulic support assemblies. Background Technology

[0002] The pressure in the hydraulic support pipeline affects its operating speed and quality. Monitoring the pipeline pressure at the working face can provide input to the intelligent fluid supply system, enabling it to control pressure and flow output based on pipeline pressure changes, thus suppressing pressure fluctuations upstream. On the other hand, it can also provide input to the automatic follow-up control system of the hydraulic support, allowing it to control the number and type of supports to operate based on pipeline pressure changes, thus suppressing pressure fluctuations downstream.

[0003] Current technology acquires data through sensors mounted on hydraulic supports, then determines the current operating status of the hydraulic supports based on the acquired data. Since downhole operations may involve numerous hydraulic supports, it is necessary to acquire sensor data from each hydraulic support. This places high demands on the quality of data acquisition and the timeliness of data processing, and the large volume of data requiring real-time analysis increases the cost of analyzing the status of hydraulic supports.

[0004] Public content

[0005] This disclosure aims to at least partially address one of the technical problems in the related art.

[0006] Therefore, one objective of this disclosure is to provide a pipeline inspection method for hydraulic support assemblies.

[0007] The second objective of this disclosure is to provide a pipeline inspection device for hydraulic support assemblies.

[0008] The third objective of this disclosure is to propose an electronic device.

[0009] To achieve the above objectives, the first aspect of this disclosure provides a pipeline detection method for a hydraulic support assembly, comprising: acquiring first pipeline data of the hydraulic support in the hydraulic support assembly and second pipeline data of the supply pump that supplies fluid to the hydraulic support; determining the working state of the hydraulic support assembly based on the first pipeline data and the second pipeline data; determining the pipeline data acquisition mode of the hydraulic support assembly based on the working state, and switching the hydraulic support assembly to the pipeline data acquisition mode.

[0010] According to one embodiment of this disclosure, determining the pipeline data acquisition mode of the hydraulic support group based on the working state includes: switching the pipeline data acquisition mode to a first acquisition mode in response to the working state being normal; and switching the pipeline data acquisition mode to a second acquisition mode in response to the working state being abnormal.

[0011] According to one embodiment of this disclosure, determining the working state of a hydraulic support assembly includes: comparing first pipeline data and second pipeline data with a first pipeline data threshold and a second pipeline data threshold, respectively; determining an abnormal working state in response to the first pipeline data being greater than the first pipeline data threshold and / or the second pipeline data being greater than the second pipeline data threshold; and determining a normal working state in response to the first pipeline data being less than or equal to the first pipeline data threshold and the second pipeline data being less than or equal to the second pipeline data threshold.

[0012] According to one embodiment of this disclosure, acquiring pipeline data based on a first acquisition mode includes: determining a target hydraulic support from a hydraulic support group; and collecting pipeline data of the target hydraulic support.

[0013] According to one embodiment of this disclosure, determining a target hydraulic support from a hydraulic support group includes: obtaining a preset interval and using hydraulic supports with adjacent preset intervals as target hydraulic supports; or, using pre-set hydraulic supports as target hydraulic supports.

[0014] According to one embodiment of this disclosure, acquiring pipeline data based on a second acquisition mode includes: collecting pipeline data of all hydraulic supports in a hydraulic support group.

[0015] According to one embodiment of this disclosure, the method further includes: determining the cause of a failure in the hydraulic support group based on pipeline data acquired in a second acquisition mode; and generating a processing plan based on the cause of the failure.

[0016] According to one embodiment of this disclosure, the method further includes: generating alarm information in response to an abnormal operating state.

[0017] A second aspect of this disclosure provides a pipeline detection device for a hydraulic support group, comprising: an acquisition module for acquiring first pipeline data of the hydraulic supports in the hydraulic support group and second pipeline data of the supply pump that supplies fluid to the hydraulic supports; a determination module for determining the working state of the hydraulic support group based on the first pipeline data and the second pipeline data; and a switching module for determining the pipeline data acquisition mode of the hydraulic support group based on the working state and switching the hydraulic support group to the pipeline data acquisition mode.

[0018] According to a third aspect of this disclosure, an electronic device is provided, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the language model training method described in one aspect of the above-described embodiment.

[0019] By determining the current working status of the hydraulic support group and selecting the appropriate pipeline data acquisition mode, compared to the traditional method of acquiring pipeline data of all hydraulic supports in the hydraulic support group, the cost of data acquisition can be saved, the data processing load of the automated control unit can be reduced, and the efficiency and practicality of hydraulic support management and inspection can be improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a pipeline inspection method for a hydraulic support assembly according to one embodiment of the present disclosure;

[0021] Figure 2 This is a schematic diagram of another pipeline inspection method for a hydraulic support assembly according to one embodiment of this disclosure;

[0022] Figure 3 This disclosure presents a time-domain-based pipeline data curve for a hydraulic support assembly according to one embodiment.

[0023] Figure 4 This disclosure provides a spatial domain-based pipeline data curve for a hydraulic support assembly according to one embodiment.

[0024] Figure 5 This is a schematic diagram of the pipeline distribution of a hydraulic support assembly according to one embodiment of the present disclosure;

[0025] Figure 6 This is a schematic diagram of the pipeline distribution of another hydraulic support assembly according to one embodiment of this disclosure;

[0026] Figure 7 This is a schematic diagram of the structure of a data acquisition group of a hydraulic support assembly according to one embodiment of the present disclosure;

[0027] Figure 8 This is a schematic diagram of a pipeline testing device for a hydraulic support assembly according to one embodiment of the present disclosure;

[0028] Figure 9 This is a schematic diagram of an electronic device according to one embodiment of the present disclosure. Detailed Implementation

[0029] Embodiments of this disclosure are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0030] Current technology acquires data through sensors mounted on hydraulic supports, then determines the current operating status of the hydraulic supports based on the acquired data. Since downhole operations may involve numerous hydraulic supports, it is necessary to acquire sensor data from each hydraulic support and then analyze the acquired data. This places high demands on the quality of data acquisition and the timeliness of data processing, and the large volume of data requiring real-time analysis increases the cost of hydraulic support status analysis.

[0031] To address the aforementioned issues, this disclosure provides a method for pipeline inspection of hydraulic support assemblies.

[0032] like Figure 1 As shown, the pipeline inspection method for this hydraulic support assembly includes the following steps:

[0033] S101, acquire the first pipeline data of the hydraulic support in the hydraulic support group and the second pipeline data of the liquid supply pump that supplies liquid to the hydraulic support.

[0034] In this embodiment, the hydraulic support assembly includes several hydraulic supports arranged in parallel and a supply pump for supplying fluid to the hydraulic supports. A multi-port module is provided between the supply pump and the hydraulic supports. The multi-port module is a fluid collection device for the supply and return of fluid to the hydraulic supports, and includes three non-connected pipelines: an inlet channel, a return channel, and a clean water channel. The inlet channel provides a high-pressure emulsion source for the hydraulic supports, the return channel provides a drainage channel for the emulsion when the hydraulic supports are unloaded, and the clean water channel provides cleaning water for the hydraulic supports for functions such as dust suppression spraying.

[0035] The first pipeline data includes the inlet pipeline data, return pipeline data, and clean water pipeline data of the hydraulic support, which are the measurement data of the sensor in the multi-channel module.

[0036] The second pipeline data includes the main supply / return flow rate and pressure values ​​of the fluid supply pump. The main supply / return flow rate values ​​represent the total pressure and flow rate of the fluid supplied by the hydraulic pump to the hydraulic support assembly. It should be noted that the fluid supply pump includes an emulsion pump and a clean water pump. The emulsion pump provides a high-pressure emulsion source to the hydraulic support through its inlet channel, and its return channel provides a drainage channel for the emulsion when the hydraulic support is unloaded. The clean water pump provides clean water to the hydraulic support through its clean water channel. Therefore, the main supply / return flow rate and pressure values ​​are categorized as follows: one for the clean water pump and the other for the emulsion pump.

[0037] S102, based on the first pipeline data and the second pipeline data, determine the working status of the hydraulic support group.

[0038] In this embodiment of the disclosure, after obtaining the first pipeline data and the second pipeline data, the first pipeline data and the second pipeline data can be processed to determine the current working status.

[0039] It should be noted that the working state can be multiple, including normal working state, abnormal working state, or the current operating state of the hydraulic support, such as lowering the column, moving the support, raising the column, and pushing the slide. No limitations are imposed here; the specific settings can be determined according to actual design requirements. It is understood that the first and second pipeline data can differ in different states; therefore, the current working state can be determined based on the first and second pipeline data.

[0040] Optionally, the first and second pipeline data can be compared with normal value ranges to determine whether they fall within the normal value range, thereby determining whether the current operating state is normal. It should be noted that the normal value ranges for different data can be different, and should be set according to actual design requirements; no limitations are imposed here.

[0041] Optionally, if the first pipeline data represents the pipeline data of all hydraulic supports in the hydraulic support group, the first pipeline data can be statistically summed and compared with the second pipeline data. If the difference between the first and second pipeline data is less than a comparison threshold, the current operating state can be considered normal. If the first pipeline data represents the pipeline data of only some hydraulic supports in the hydraulic support group, the pipeline data of all hydraulic supports can be calculated based on the first pipeline data and compared with the second pipeline data. If the difference between the first and second pipeline data is less than a comparison threshold, the current operating state can be considered normal. It should be noted that the comparison threshold can be preset and can be changed according to actual design needs.

[0042] S103, based on the working status, determine the pipeline data acquisition mode of the hydraulic support group and switch the hydraulic support group to the pipeline data acquisition mode.

[0043] In this embodiment, to overcome the problems of large data volume and high data processing cost in real-time analysis, different pipeline data acquisition modes can be determined for different states, instead of acquiring pipeline data of all hydraulic supports in the hydraulic support group under conventional conditions. It should be noted that different working states correspond to different pipeline data acquisition modes, which are not limited here, but should be determined according to actual design requirements.

[0044] In this embodiment, firstly, the first pipeline data of the hydraulic supports in the hydraulic support group and the second pipeline data of the supply pump supplying fluid to the hydraulic supports are acquired. Then, based on the first and second pipeline data, the working state of the hydraulic support group is determined. Finally, based on the working state, the pipeline data acquisition mode of the hydraulic support group is determined, and the hydraulic support group is switched to the pipeline data acquisition mode. Therefore, by determining the current working state and selecting an appropriate pipeline data acquisition mode, compared to the traditional method of acquiring pipeline data for all hydraulic supports in the hydraulic support group, data acquisition costs can be saved, the data processing load of the automated control unit can be reduced, and the efficiency and practicality of hydraulic support management and inspection can be improved.

[0045] In this embodiment of the disclosure, based on determining the working state of the hydraulic support assembly, the first pipeline data and the second pipeline data can be compared with a first pipeline data threshold and a second pipeline data threshold, respectively. If the first pipeline data is greater than the first pipeline data threshold and / or the second pipeline data is greater than the second pipeline data threshold, the working state is determined to be abnormal. If the first pipeline data is less than or equal to the first pipeline data threshold and the second pipeline data is less than or equal to the second pipeline data threshold, the working state is determined to be normal. It should be noted that the first pipeline data threshold and the second pipeline data threshold are preset and can be set according to actual design needs; no limitations are imposed here.

[0046] Based on the working status, the pipeline data acquisition mode of the hydraulic support group can be determined, and it can also be achieved through... Figure 2 To further explain, the method includes:

[0047] S201, in response to the normal working state, the hydraulic support assembly is switched to the first acquisition mode.

[0048] It should be noted that when the working status is determined to be normal, in order to save costs and reduce the amount of data processing, pipeline data can be obtained through sampling. First, the target hydraulic support can be identified from the hydraulic support group, and then the pipeline data of the target hydraulic support can be collected. By analyzing the pipeline data of the target hydraulic support, the current working status of the hydraulic support group can be determined.

[0049] Optionally, a preset interval can be obtained, and hydraulic supports adjacent to the preset interval can be used as target hydraulic supports. It should be noted that the preset interval is pre-set and can be changed according to actual design needs; no limitations are imposed here. For example, the preset interval can be 3, meaning that a target hydraulic support is determined every 3 hydraulic supports.

[0050] Optionally, pre-set hydraulic supports can be used as target hydraulic supports. For example, hydraulic supports in important locations can be used as target hydraulic supports, such as those at the head and tail of the machine face.

[0051] S202, in response to an abnormal working state, the hydraulic support assembly is switched to the second acquisition mode.

[0052] It should be noted that when the working state is determined to be abnormal, it is necessary to determine the fault point of the hydraulic support group. Therefore, it is necessary to analyze the full data of the hydraulic support, which requires collecting the pipeline data of all hydraulic supports in the hydraulic support group.

[0053] In this embodiment of the disclosure, in response to the normal working state, the hydraulic support group is switched to the first acquisition mode, and in response to the abnormal working state, the hydraulic support group is switched to the second acquisition mode. By setting the first acquisition mode and the second acquisition mode, the cost of acquiring hydraulic supports can be reduced. At the same time, in the abnormal state of the hydraulic support, it is also possible to switch to the second acquisition mode to identify and eliminate the fault point, which increases the practicality of this solution.

[0054] Furthermore, the pipeline data acquired in the second acquisition mode can be analyzed to determine the cause of the fault in the current hydraulic support group and generate a treatment plan based on the cause of the fault.

[0055] In this embodiment of the disclosure, determining the cause of failure in the hydraulic support assembly based on the reacquired first pipeline data and second pipeline data can include various analysis methods.

[0056] Optionally, the interface can output pressure change curves for one or more of the following at a specific sampling point: liquid inlet, liquid outlet, and clean water. The curves are time-domain variables, with time on the horizontal axis and pressure on the vertical axis. These curves are displayed on the software interface of the fully mechanized mining face automatic control center, reflecting the pressure status at that specific point in the working face in real time. There can be one or more specific points, which can be fixed or random; no restrictions are placed here. Figure 3The curve shown indicates that the real-time pipeline pressure display interface, in addition to the pressure status curve itself, can display the following data in real time: peak pressure of the inlet channel (Pmax), valley pressure of the inlet channel (Pmin), and average pressure of the inlet channel (Pa) within the time domain. Similarly, it can also display: peak pressure of the return channel (Rmax), valley pressure of the return channel (Rmin), and average pressure of the return channel (Ra) within the time domain; peak pressure of the clear water channel (Qmax), valley pressure of the clear water channel (Qmin), and average pressure of the clear water channel (Qa) within the time domain. Besides displaying the above three pressures, the interface can also display other working face time-domain monitoring data in real time, such as column pressure curves, coal mining machine speed curves, and pump station pressure curves.

[0057] Optionally, the interface can also output pressure scatter curves or pressure fitting curves for all collection points of one or more pipeline pressure types across the entire longwall mining face. For example, the interface could display pressure scatter points for all inlet channel collection points with the horizontal axis representing the number of support frames and the vertical axis representing pressure, or form a pressure curve for the entire longwall mining face through curve fitting. Figure 4 As shown, under this scheme, one or more pipeline pressure types can be displayed in the same view. For example, under the same coordinate, the pressure change values ​​of all points for both the inlet and return pipeline types can be displayed for comparison. The pressure of a single collection point displayed in the above scheme (i.e., the value of a scatter plot or a scatter plot before fitting) can be the pressure collected in real time, or it can be the average value over a certain time period to reduce the amplitude of change and facilitate display. The scheme can display pipeline pressure data within a coal mining cycle. It is used to determine the rationality of pipeline layout. For example, when the pressure valley of the inlet pipeline is lower than a certain value or the pressure peak of the outlet pipeline exceeds a certain value, a set of supply and return channels for the self-scraping conveyor pipeline should be added near the pipeline to improve the sufficiency of the supply and the timeliness of the return at that point. For example, the system can dynamically limit the action of hydraulic supports within a certain frame interval through analysis of historical pipeline pressure data. For example: when the minimum pressure of the inlet pipeline at pipeline pressure collection point n is less than the set minimum warning value of pipeline pressure within m cycles, i.e., Pxmi n < Pxs. If the sampling point is determined to be a weak fluid supply point, a more conservative fluid support tracking logic will be adopted when the hydraulic support operates automatically in this section, meaning that the overlapping actions of hydraulic supports with large fluid consumption will be minimized. Here, Pxs is the minimum warning value, which is pre-set and can be adjusted according to actual design needs; no limitations are imposed here. The automatic control center of the fully mechanized mining face records the pressure values ​​of all pipeline pressure sampling points of one or more pipeline types (inlet, return, and clean water) within a certain period or a mining cycle, and performs long-term characteristic pattern analysis. It can also be used in conjunction with other data from the working face for characteristic pattern analysis.

[0058] Optionally, the system can also monitor the overall status of the hydraulic system by collecting pressure and flow data, thereby enabling adjustments to the pipeline itself, identification and location of pipeline faults, interaction with the hydraulic support operation, and interaction with the operating status of the fluid supply pump station.

[0059] It should be noted that after determining that the hydraulic support assembly is in an abnormal working state, an alarm message can be generated to warn the operators, thus providing a timely response and improving the safety of underground operations.

[0060] To address the high cost of current hydraulic support condition analysis methods, this disclosure provides a pipeline inspection system for hydraulic support assemblies. The system includes a detection module connected to the hydraulic support assembly to collect and process pipeline data and determine the status information of the hydraulic supports.

[0061] The pipeline detection system of the hydraulic support assembly can analyze the data collected by sensors to determine the current working node of the hydraulic support. For example, the working node of the hydraulic support can be determined by acquiring the pipeline data of the hydraulic support. In the current technology, the working node can be one of the following states: column lowering, support moving, column raising, and slide pushing.

[0062] Optionally, the collected data can be analyzed to determine whether the current working state of the hydraulic support is abnormal. For example, if the pressure valley value of the inlet channel is lower than a certain value, the pressure peak value of the outlet pipe exceeds a certain value, or the current supply point is a weak supply point, then the current working state can be considered abnormal. If the sensor values ​​obtained are all within the normal range, then the current working state can be considered normal.

[0063] The hydraulic support assembly includes several hydraulic supports arranged in parallel and a fluid supply pump for supplying fluid to the hydraulic supports. A multi-port module connects the fluid supply pump to the hydraulic supports. The multi-port module is a fluid collection device for the fluid supply and return of the hydraulic supports. It includes three independent pipelines: an inlet channel, a return channel, and a clean water channel. The inlet channel provides a high-pressure emulsion source for the hydraulic supports; the return channel provides a drainage channel for the emulsion when the hydraulic supports are unloaded; and the clean water channel provides cleaning water for the hydraulic supports, used for functions such as dust suppression spraying.

[0064] It should be noted that the pressure types of the pipelines collected in different trips are different, and their multi-channel block structures can be different. For example, if n trips are collecting pressure in the inlet channel, then the multi-channel block of that trip only has a pressure acquisition interface connected to the inlet channel, while no pressure acquisition interface is configured in the return channel and the clean water channel.

[0065] The detection module includes a hydraulic support electro-hydraulic control unit, an integrated fluid supply control unit, an automation control unit, a first flow sensor and a first pressure sensor for collecting pipeline data of the hydraulic support, and a second flow sensor and a second pressure sensor for collecting pipeline data of the fluid supply pump. The first sensor is disposed on the multi-port module. In this embodiment, the position of the first flow sensor on the multi-port module may vary, and no limitation is made here.

[0066] It should be noted that the fluid supply pump includes an emulsion pump and a clean water pump. The emulsion pump provides a high-pressure emulsion source to the hydraulic support through the inlet channel, and the return channel provides a drainage channel for the emulsion when the hydraulic support is unloaded. The clean water pump provides clean water to the hydraulic support through the clean water channel.

[0067] The electro-hydraulic control unit of the hydraulic support is used to receive the pipeline pressure value of the hydraulic support collected by the first pressure sensor and the pipeline flow value of the hydraulic support collected by the first flow sensor.

[0068] An integrated liquid supply control unit is used to receive the pipeline pressure value at the inlet / outlet of the liquid supply pump collected by the second pressure sensor and the pipeline flow value at the inlet / outlet of the liquid supply pump collected by the second flow sensor.

[0069] It should be noted that the electro-hydraulic control unit of the hydraulic support corresponds one-to-one with the hydraulic supports in the hydraulic support group. Besides collecting the pipeline data of the hydraulic support reported by the first flow sensor and the first pressure sensor, it also needs to report the collected pipeline data to the automation control unit. Simultaneously, the electro-hydraulic control unit can also control the hydraulic support and the first pressure sensor and first flow sensor under the automation control unit to perform command-based operations based on instructions sent by the automation control unit, thereby adjusting the state of the hydraulic support and achieving closed-loop control of the hydraulic support.

[0070] The integrated fluid supply control unit, in addition to collecting the pipeline pressure values ​​at the inlet / outlet of the fluid supply pump reported by the second flow sensor and the second pressure sensor, and the pipeline flow values ​​at the inlet / outlet of the fluid supply pump collected by the second flow sensor, also needs to report the collected pipeline data to the automation control unit. Simultaneously, the electro-hydraulic control unit of the hydraulic support can also control the fluid supply pump and its associated second pressure and flow sensors to perform command-based operations based on instructions sent by the automation control unit, thereby achieving closed-loop control of the fluid supply pump.

[0071] It should be noted that the first flow sensor and the second flow sensor use different data acquisition methods. No restrictions are imposed here, and the specific settings can be made according to the actual downhole working environment and design requirements.

[0072] Among them, the solution for the second flow sensor, such as Figure 5As shown, this disclosed solution intends to collect flow rates from the main inlet and main return channels of the fluid supply system. Each main inlet and main return channel consists of two or more sub-pipe groups, such as the head inlet channel group and the tail inlet channel group. The flow rates of two or more pipe groups need to be measured simultaneously, and the monitored values ​​are summed to form the pipeline flow rate. That is, the total inlet flow rate is the sum of the inlet flow rates of all hydraulic supports, and the total return flow rate is the sum of the return flow rates of all hydraulic supports. Each pipe group contains one or more pipelines, and the flow rate of the pipe group is the sum of the flow rates of each pipeline. For example, in a hydraulic support group containing x hydraulic supports, the head inlet channel group is the sum of the inlet flow rates of x hydraulic supports, Qja=Qja1+Qja2+…+Qjax, where Qjax is the x-th hydraulic support in the hydraulic support group.

[0073] In the embodiments disclosed herein, such as Figure 5 As shown, the second flow sensor used to collect the main inflow is generally installed before or after the high-pressure filter station or at the junction of the roadway and the coal mining face. The second flow sensor used to collect the main return flow is generally installed before or after the return liquid filter station or at the junction of the roadway and the coal mining face.

[0074] Optionally, the data acquisition scheme for the first flow sensor, such as... Figure 6 As shown. The flow rate is monitored at one or more monitoring points, which can be evenly distributed. The flow sensor can be installed on the hydraulic support body, i.e., the inlet / outlet multi-port block, or between two adjacent supports. The flow sensor within the support group has the characteristic of measuring both bidirectional flow. The flow sensor can be integrated into the multi-port block, support filter, or main valve. Based on data from different flow cross-sections, the fluid consumption for hydraulic support movement within a range can be calculated. Combined with the electro-hydraulic control program's action command data, the real-time fluid consumption for certain supports and certain actions can be specified. When a single support moves within a range, its fluid consumption can be measured. A second flow sensor can be integrated into the multi-port block, support filter, or main valve. Based on data from different flow cross-sections, the fluid consumption for hydraulic support movement within a range can be calculated. Combined with the electro-hydraulic control program's action command data, the real-time fluid consumption for certain supports and certain actions can be specified. When a single support moves within a range, its fluid consumption can be measured.

[0075] Optionally, the first flow sensor acquisition scheme also includes single-frame acquisition, where the first flow sensor is installed inside the hydraulic support at the working face, specifically between the multi-way module and the electro-hydraulic directional valve, to monitor the supply and return fluid flow rates when the support is in operation. Combined with the action command data from the electro-hydraulic control program, the fluid consumption for a specific action or several actions of the support can be determined.

[0076] The automated control unit controls the sensors, the electro-hydraulic control unit of the hydraulic support, and the integrated fluid supply control unit, and receives pipeline pressure and flow values ​​from the electro-hydraulic control unit of the hydraulic support and the integrated fluid supply control unit. It should be noted that the automated control unit has a communication connection with the electro-hydraulic control unit of the hydraulic support and the integrated fluid supply control unit; this communication connection can be wired or wireless, and no limitation is made here.

[0077] Optionally, the sensor has a communication connection with the electro-hydraulic control unit of the hydraulic support and the integrated fluid supply control unit. Optionally, the pressure sensor and flow meter transmit the data wirelessly to a relay point in the longwall mining face network, and then transmit the pressure signal to the electro-hydraulic control unit of the hydraulic support and the integrated fluid supply control unit for processing via the longwall mining face network bus or wireless base station.

[0078] Optionally, the pressure sensor and flow sensor can have a built-in wireless transmission module or an external wireless transmission module. The hydraulic support electro-hydraulic control unit and integrated fluid supply control unit are equipped with a receiving module that interfaces with the wireless transmission module or external wireless transmission module to achieve wireless communication with the pressure sensor and flow sensor. This wireless data transmission method reduces reliance on wired transmission during downhole operations, making it suitable for environments without wired transmission capabilities and improving data transmission efficiency.

[0079] In this embodiment, if the inlet, return, and clean water channels are not collected simultaneously, i.e., only one or two are collected, different types of pipeline pressure data can be collected through one or two controller interfaces. The data can then be calibrated and differentiated by the controller or the automated control center of the fully mechanized mining face, and then aggregated and converted. Differentiation can be based on the calibration method for pipeline pressure collection point types. When the emulsion pump starts, the hydraulic support of the working face is not in motion. At this time, the collection point with pressure value P ≥ kp * Pt is the inlet pressure collection point, where kp is a proportional coefficient (which can be 0.6-0.95), and Pt is the set pressure of the emulsion pump station unloading valve. Clear water channel: When the clear water pump starts, there is no hydraulic action of clear water supply to the hydraulic support of the working face (such as spraying). At this time, the sampling point where the pressure value Q≥kq*Qt is the inlet pressure sampling point, where kq is the proportional coefficient, which is taken as 0.6-0.95, and Q is the set pressure of the overflow valve of the spray pump station; Return liquid channel: After shutting down all emulsion pump stations and clear water pump stations, operate several hydraulic supports. The fluctuation of the pressure sampling reading is the return liquid pressure sampling point.

[0080] In this embodiment of the disclosure, to improve the quality and speed of data acquisition and reduce the amount of data requiring real-time analysis, the system proposes two acquisition modes for the automated control unit, including a first acquisition mode and a second acquisition mode. In the first acquisition mode, three adjacent hydraulic supports in a hydraulic support group are sequentially grouped into one acquisition group, and the sensor states of the first pressure sensors and first flow sensors on several acquisition groups are controlled to switch to data acquisition state. In the second acquisition mode, the sensor states of all first pressure sensors and first flow sensors are controlled to switch to data acquisition state. For example, as... Figure 7 As shown, the device has one pipeline pressure acquisition interface, which can be arranged as follows: n frames to acquire the pressure of the inlet channel, n-1 frames to acquire the pressure of the return channel, and n+1 frames to acquire the pressure of the clean water channel. Since the three frames are relatively close, they can be regarded as three pressure acquisition items of the n points of the hydraulic support.

[0081] The automated control unit determines the current operating status of the hydraulic support assembly based on the pipeline pressure and / or flow values ​​received from the electro-hydraulic control unit and integrated fluid supply control unit of the hydraulic support. The automated control unit performs real-time status analysis and adjusts the data acquisition mode and operating parameters of the hydraulic support assembly based on the current status. This allows for timely intervention in case of equipment or data anomalies, improving the efficiency and safety of the hydraulic support assembly.

[0082] The system is in normal operating condition, and the automation control unit switches to the first acquisition mode. Data is collected by selecting several acquisition groups, and then the collected data is reported to the hydraulic support electro-hydraulic control unit and the integrated fluid supply control unit, and finally reported to the automation control unit. It should be noted that several acquisition groups can be randomly selected as target acquisition groups, or a certain interval can be set to select several acquisition groups as target acquisition groups; no limitations are imposed here.

[0083] Furthermore, the number of data collection groups selected is not fixed and can be set according to actual operational needs.

[0084] Furthermore, the data collected by each acquisition group can be staggered between adjacent supports. Specifically, the three hydraulic supports in one acquisition group can each acquire data from the hydraulic inlet pipe, return pipe, and clean water pipe, respectively. These data are then used as the pipe pressure values ​​for the acquisition group. This method allows for near-field acquisition, ensuring complete coverage of the working face pressure. Each support can acquire pressure from one or more of the inlet, return, and clean water pipes simultaneously. Compared to existing technologies that acquire data from all hydraulic sensors, this sampling method for acquiring hydraulic support pipe data saves on data acquisition costs, reduces the data processing load on the automated control unit, and improves the efficiency and practicality of hydraulic support management and monitoring.

[0085] If the operating state is abnormal, it is necessary to determine the status of each hydraulic support in the hydraulic support group. At this time, the automatic control unit needs to switch to the second acquisition mode. The system will continue to switch back to the first acquisition mode until the operating state returns to normal.

[0086] It should be noted that the switching cycle of the state of this automated control unit can be based on the hydraulic support operation cycle or it can be switched instantly; no limitation is made here.

[0087] Corresponding to the two acquisition modes of the automated control unit in this disclosure, the sensor has two operating states: a data acquisition state and a standby state by default. This allows data acquisition to be performed only through the automated control unit.

[0088] Corresponding to the pipeline testing methods for hydraulic support assemblies provided in the above embodiments, one embodiment of this disclosure also provides a pipeline testing device for hydraulic support assemblies. Since the pipeline testing device for hydraulic support assemblies provided in this disclosure corresponds to the pipeline testing methods for hydraulic support assemblies provided in the above embodiments, the implementation methods for the pipeline testing methods for hydraulic support assemblies described above are also applicable to the pipeline testing device for hydraulic support assemblies provided in this disclosure, and will not be described in detail in the following embodiments.

[0089] like Figure 8 As shown, the pipeline detection device 800 of the hydraulic support group includes: an acquisition module 810, a determination module 820, and a switching module 830.

[0090] The acquisition module 810 is used to acquire the first pipeline data of the hydraulic support in the hydraulic support group and the second pipeline data of the liquid supply pump that supplies liquid to the hydraulic support.

[0091] The determination module 820 is used to determine the working status of the hydraulic support group based on the first pipeline data and the second pipeline data.

[0092] The switching module 830 is used to determine the pipeline data acquisition mode of the hydraulic support group based on the working status, and switch the hydraulic support group to the pipeline data acquisition mode to acquire pipeline data.

[0093] In one embodiment of this disclosure, the switching module 830 is further configured to: switch the hydraulic support group to a first acquisition mode in response to the working state being normal; and switch the hydraulic support group to a second acquisition mode in response to the working state being abnormal.

[0094] In one embodiment of this disclosure, the determining module 820 is further configured to: compare the first pipeline data and the second pipeline data with the first pipeline data threshold and the second pipeline data threshold, respectively; determine the working state as an abnormal state in response to the first pipeline data being greater than the first pipeline data threshold and / or the second pipeline data being greater than the second pipeline data threshold; and determine the working state as a normal state in response to the first pipeline data being less than or equal to the first pipeline data threshold and the second pipeline data being less than or equal to the second pipeline data threshold.

[0095] In one embodiment of this disclosure, the switching module 830 is further configured to: determine the target hydraulic support from the hydraulic support group; and collect pipeline data of the target hydraulic support.

[0096] In one embodiment of this disclosure, the switching module 830 is further configured to: obtain a preset acquisition interval, and use the hydraulic support with an adjacent preset interval as the target hydraulic support; or, use the hydraulic support that has been set in advance as the target hydraulic support.

[0097] In one embodiment of this disclosure, the switching module 830 is further configured to: collect pipeline data of all hydraulic supports in the hydraulic support group.

[0098] In one embodiment of this disclosure, the switching module 830 is further configured to: determine the cause of the fault in the hydraulic support group based on the pipeline data acquired in the second acquisition mode; and generate a processing plan based on the cause of the fault.

[0099] In one embodiment of this disclosure, the switching module 830 is further configured to: generate alarm information in response to an abnormal working state.

[0100] To implement the above embodiments, this disclosure also proposes an electronic device 900, such as... Figure 9As shown, the electronic device 900 includes a processor 901 and a memory 902 communicatively connected to the processor. The memory 902 stores instructions that can be executed by at least one processor. The instructions are executed by at least one processor 901 to implement the pipeline detection method of the hydraulic support assembly as described in the first aspect embodiment of this disclosure.

[0101] To implement the above embodiments, this disclosure also proposes a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a computer to implement the pipeline detection method for a hydraulic support assembly as described in the first aspect of this disclosure.

[0102] To implement the above embodiments, this disclosure also proposes a computer program product, including a computer program that, when executed by a processor, implements the pipeline detection method for a hydraulic support assembly as described in the first aspect of this disclosure.

[0103] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0104] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise expressly specified.

[0105] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0106] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A method for pipeline inspection of a hydraulic support assembly, characterized in that, include: Obtain the first pipeline data of the hydraulic support in the hydraulic support group and the second pipeline data of the liquid supply pump that supplies liquid to the hydraulic support; Based on the first pipeline data and the second pipeline data, the working status of the hydraulic support group is determined; Based on the working state, determine the pipeline data acquisition mode of the hydraulic support group, and switch the hydraulic support group to the pipeline data acquisition mode; The step of determining the pipeline data acquisition mode of the hydraulic support group based on the working state includes: In response to the operating state being normal, the hydraulic support assembly is switched to the first acquisition mode; In response to the abnormal working state, the hydraulic support assembly is switched to the second acquisition mode; The acquisition of pipeline data based on the first acquisition mode includes: Identify the target hydraulic support from the hydraulic support assembly; Collect pipeline data of the target hydraulic support; Among them, acquiring pipeline data based on the second acquisition mode includes: Collect pipeline data for all hydraulic supports in the hydraulic support group.

2. The method according to claim 1, characterized in that, Determining the working state of the hydraulic support assembly includes: The first pipeline data and the second pipeline data are compared with the first pipeline data threshold and the second pipeline data threshold, respectively; In response to the first pipeline data being greater than the first pipeline data threshold, and / or the second pipeline data being greater than the second pipeline data threshold, the operating state is determined to be an abnormal state; In response to the first pipeline data being less than or equal to the first pipeline data threshold, and the second pipeline data being less than or equal to the second pipeline data threshold, the operating state is determined to be a normal state.

3. The method according to claim 1, characterized in that, The step of determining the target hydraulic support from the hydraulic support group includes: Obtain a preset interval, and use the hydraulic supports adjacent to the preset interval as the target hydraulic supports; or, The pre-set hydraulic support is used as the target hydraulic support.

4. The method according to claim 1, characterized in that, The method further includes: Based on the pipeline data acquired in the second acquisition mode, the cause of the failure in the hydraulic support group is determined; A solution is generated based on the cause of the fault.

5. The method according to claim 4, characterized in that, The method further includes: An alarm message is generated in response to the abnormal operating state.

6. A pipeline inspection device for a hydraulic support assembly, characterized in that, The method applied to any one of claims 1-5 includes: The acquisition module is used to acquire the first pipeline data of the hydraulic support in the hydraulic support group and the second pipeline data of the liquid supply pump that supplies liquid to the hydraulic support; The determination module is used to determine the working status of the hydraulic support group based on the first pipeline data and the second pipeline data; The switching module is used to determine the pipeline data acquisition mode of the hydraulic support group based on the working state, and switch the hydraulic support group to the pipeline data acquisition mode.

7. An electronic device, characterized in that, Including memory and processor; The processor reads executable program code stored in the memory to run a program corresponding to the executable program code, so as to implement the method as described in any one of claims 1-5.

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