Intelligent hydraulic support liquid supply system and equipment

Abstract

The hydraulic support intelligent liquid supply system and equipment are disclosed, and relate to the technical field of mine equipment. The system comprises a hydraulic support group, a liquid supply pump and a control module. The liquid supply end of the liquid supply pump is connected to the liquid inlet end of the hydraulic support group, and the liquid return end of the liquid supply pump is connected to the liquid return end of the hydraulic support group. The hydraulic support group comprises a plurality of hydraulic supports, a plurality of pressure sensors and a plurality of flow sensors, which are used to collect pressure data and flow data. The control module is used to process the pressure data and flow data and generate control instructions, which are sent to the hydraulic support group and the liquid supply pump. The working state of the hydraulic support group and the liquid supply pump can be accurately determined, and the control instructions can be generated by the control module to adjust the hydraulic support group and the liquid supply pump, thereby improving the working efficiency of the hydraulic support liquid supply system, reducing the detection cost and management cost, and realizing the control closed loop.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of mine equipment, in particular to an intelligent liquid supply system for hydraulic supports and equipment. BACKGROUND

[0002] The working face pipeline pressure influences the action speed and action quality of the hydraulic support. The working face pipeline pressure monitoring can provide input for the intelligent liquid supply system, so that it controls the pressure and flow output according to the pipeline pressure change, and suppresses the pressure fluctuation from the upstream. The working face pipeline pressure monitoring can also provide input for the automatic machine following control system of the hydraulic support, so that it controls the number of action frames and the action type according to the pipeline pressure change, and suppresses the pressure fluctuation from the downstream.

[0003] DISCLOSURE

[0004] The present disclosure aims to at least partially solve one of the technical problems in the related art.

[0005] To this end, one purpose of the present disclosure is to propose an intelligent liquid supply system for hydraulic supports.

[0006] A second purpose of the present disclosure is to propose an intelligent liquid supply equipment for hydraulic supports.

[0007] To achieve the above purpose, the first aspect of the present disclosure proposes an intelligent liquid supply system for hydraulic supports, comprising: a hydraulic support group, a liquid supply pump and a control module; the liquid supply end of the liquid supply pump is connected to the liquid inlet end of the hydraulic support group, and the liquid return end of the liquid supply pump is connected to the liquid return end of the hydraulic support group; the hydraulic support group comprises a plurality of hydraulic supports, and each hydraulic support is connected with a clean water pipe, an emulsion inlet pipe and an emulsion return pipe which are not communicated with each other, and the clean water pipe, the emulsion inlet pipe and the emulsion return pipe are controlled and switched by a multi-way block; the hydraulic support group further comprises a plurality of pressure sensors, and the pressure sensors are arranged on the multi-way block; the hydraulic support group further comprises a plurality of flow sensors, and the flow sensors are arranged on the clean water pipe and / or the emulsion inlet pipe and / or the emulsion return pipe between adjacent two hydraulic supports; each hydraulic support comprises a hydraulic support electro-hydraulic control unit, and the hydraulic support electro-hydraulic control unit is used to receive the data collected by the pressure sensors and the flow sensors; the liquid supply pump further comprises an integrated liquid supply control unit, and the integrated liquid supply control unit is used to obtain the total liquid supply flow, the total return flow, the total liquid supply pressure and the total liquid return pressure; the control module is used to receive the data reported by the hydraulic support electro-hydraulic control unit, and generate a control instruction and issue it to the hydraulic support electro-hydraulic control unit.

[0008] According to one embodiment of the present disclosure, the intelligent liquid supply system for hydraulic supports further comprises: determining a target hydraulic support in the hydraulic support group; and arranging a pressure sensor on the target hydraulic support.

[0009] According to one embodiment of the present disclosure, the intelligent liquid supply system of the hydraulic support further comprises: taking each hydraulic support in the hydraulic support group as a target hydraulic support; or, obtaining a preset acquisition interval, and taking the hydraulic supports in adjacent preset intervals as target hydraulic supports; or, taking the hydraulic supports set in advance as target hydraulic supports.

[0010] According to one embodiment of the present disclosure, the intelligent liquid supply system of the hydraulic support further comprises: determining a target flow detection point in the hydraulic support group; and arranging the flow sensor at the target flow detection point.

[0011] According to one embodiment of the present disclosure, the intelligent liquid supply system of the hydraulic support further comprises: taking the clear water pipe and / or emulsion inlet pipe and / or emulsion return pipe between the adjacent two hydraulic supports in the hydraulic support group as the target flow detection point; or, obtaining a preset detection point interval, and dividing the hydraulic supports into a plurality of detection groups based on the detection point interval, and taking the clear water pipe and / or emulsion inlet pipe and / or emulsion return pipe between each detection group as the target flow detection point; or, taking the clear water pipe and / or emulsion inlet pipe and / or emulsion return pipe between the adjacent two hydraulic supports set in advance as the target flow detection point.

[0012] According to one embodiment of the present disclosure, the control module is configured to receive data reported by the hydraulic support electro-hydraulic control unit, and generate a control instruction, comprising: the control module determines the current operation data of the hydraulic support group and the liquid supply pump based on the received data reported by the hydraulic support electro-hydraulic control unit; compares the operation data with normal operation data to determine the current working state of the hydraulic support group and the liquid supply pump; and generates a control instruction based on the operation data in response to the working state being an abnormal working state.

[0013] According to one embodiment of the present disclosure, the hydraulic support electro-hydraulic control unit receives the control instruction and controls the hydraulic support group to change the state based on the control instruction; and the integrated liquid supply control unit receives the control instruction and controls the liquid supply pump to change the state based on the control instruction.

[0014] According to one embodiment of the present disclosure, the pressure sensor and the flow sensor are each provided with a wireless transmission device, and the hydraulic support electro-hydraulic control unit is provided with a receiving device that is docked with the wireless transmission device.

[0015] According to one embodiment of the present disclosure, the system further comprises: a liquid return filtering station and a high-pressure filtering station arranged between the hydraulic support group and the liquid supply pump, a sensor for detecting the total liquid supply flow and the total liquid supply pressure is arranged between the liquid return filtering station and the hydraulic support group / liquid supply pump, and a sensor for detecting the total liquid return flow and the total liquid return pressure is arranged between the high-pressure filtering station and the hydraulic support group / liquid supply pump.

[0016] To achieve the above object, the second aspect of the present disclosure provides a hydraulic support intelligent liquid supply device, comprising a hydraulic support intelligent liquid supply system as described in the first aspect.

[0017] In this way, the working states of the hydraulic support group and the liquid supply pump can be accurately determined, and control instructions can be generated by the control module to adjust the hydraulic support group and the liquid supply pump, thereby improving the working efficiency of the hydraulic support liquid supply system, reducing the detection cost and management cost, and realizing control closed loop. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of a hydraulic support intelligent liquid supply system according to an embodiment of the present disclosure;

[0019] Figure 2 is a schematic diagram of the connection structure of the hydraulic support group and the liquid supply pump according to an embodiment of the present disclosure;

[0020] Figure 3 is a schematic diagram of the connection structure of the clean water pipe, the emulsion inlet pipe and the emulsion return pipe according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0021] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present disclosure, and cannot be understood as a limitation of the present disclosure.

[0022] In order to solve the problem of automatic analysis of the current hydraulic support state, the present disclosure provides a hydraulic support intelligent liquid supply system.

[0023] As shown in Figure 1 , the hydraulic support intelligent liquid supply system comprises a hydraulic support group, a liquid supply pump and a control module.

[0024] As shown in Figure 2 , the liquid supply end of the liquid supply pump is connected to the liquid inlet end of the hydraulic support group, and the liquid return end of the liquid supply pump is connected to the liquid return end of the hydraulic support group. The liquid supply pump is used to provide washing liquid and high-pressure emulsion for the hydraulic support group.

[0025] The hydraulic support group comprises a plurality of hydraulic supports, as shown in Figure 3 , the hydraulic support is connected with a clean water pipe, an emulsion inlet pipe and an emulsion return pipe which are not communicated with each other, and the clean water pipe, the emulsion inlet pipe and the emulsion return pipe are controlled by a multi-way block.

[0026] It should be noted that the multi-pass block structure can be different for different types of pipeline pressure collected in different flights. For example, the pipeline pressure of n flights is collected. The multi-pass block only has a pressure collection interface connected to the liquid inlet pipe, and no pressure collection interface is connected to the liquid return pipe and the clean water pipe.

[0027] The hydraulic support group also includes a plurality of pressure sensors arranged on the multi-pass block to measure the pipeline pressure. It should be noted that the pressure sensor can measure the pressure of a single pipeline, for example, the pressure of the clean water pipe, the emulsion inlet pipe or the emulsion return pipe can be measured separately, or the pressure of all three pipelines can be measured, or the pressure of two pipelines can be measured. Here, no limitation is made.

[0028] A pressure sensor can be provided on the hydraulic support, or a plurality of sensors can be provided, and no limitation is made here. The specific needs are limited according to the actual measurement needs.

[0029] Each hydraulic support includes a hydraulic support electro-hydraulic control unit for receiving data collected by the pressure sensor and the flow sensor and uploading to the control module.

[0030] The liquid supply pump also includes an integrated liquid supply control unit for obtaining total liquid supply flow, total return flow, total liquid supply pressure and total return pressure and uploading to the control module.

[0031] It should be noted that in the embodiments of the present disclosure, the position of the pressure sensor is not fixed and can be changed according to the actual test needs.

[0032] In the embodiments of the present disclosure, the target hydraulic support in the hydraulic support group can be determined first, and then the pressure sensor is arranged on the target hydraulic support. It should be noted that the target hydraulic support is the support on which the pressure sensor needs to be installed and measured.

[0033] In the embodiments of the present disclosure, each hydraulic support in the hydraulic support group can be used as a target hydraulic support. In this mode, the hydraulic data of all hydraulic supports can be measured, and the hydraulic data of part of the hydraulic supports can also be measured selectively. This arrangement of the pressure sensor can measure more comprehensive data and can comprehensively analyze the pressure data of each hydraulic support, but the cost is higher and the wiring requirement is also higher.

[0034] Optionally, the adjacent preset interval hydraulic support can also be taken as the target hydraulic support by acquiring a preset acquisition interval. It should be noted that the acquisition interval can be set in advance and can be set according to actual test needs. For example, the acquisition interval can be 3, that is, every 3 hydraulic supports, the next hydraulic support is selected as the target hydraulic support, and the pressure sensor is installed on the target hydraulic support. Compared with the above method of arranging the pressure sensor on all the hydraulic supports, the method of arranging the pressure sensor at a fixed interval can greatly reduce the cost, reduce the amount of collected data, improve the data processing and transmission rate, and reduce the cost of data processing.

[0035] Optionally, the hydraulic support set in advance can also be taken as the target hydraulic support. It should be noted that the target hydraulic support is at least 2, and is arranged at least at the head and tail of the working face. The position and number of other target hydraulic supports are not limited and need to be manually set.

[0036] The hydraulic support group also includes a plurality of flow sensors. As shown in Figure 2 The flow sensor is arranged on the clear water pipe and / or emulsion inlet pipe and / or emulsion return pipe between the adjacent two hydraulic supports to measure the flow data between the adjacent hydraulic supports.

[0037] It should be noted that in the embodiment of the present disclosure, the position of the flow sensor is not fixed and can be changed according to actual test needs.

[0038] In the embodiment of the present disclosure, the target flow detection point in the hydraulic support group can be determined first, and then the flow sensor is arranged at the target flow detection point. It should be noted that at least two flow sensors need to be arranged at one target flow detection point, that is, at least the flow data of the emulsion inlet pipe and the emulsion return pipe are measured, and the flow data of the clear water pipe can also be included, which is not limited here.

[0039] Optionally, the clear water pipe and / or emulsion inlet pipe and / or emulsion return pipe between the adjacent two hydraulic supports in the hydraulic support group can be taken as the target flow detection point. This flow sensor arrangement method can detect the inter- support flow of all adjacent hydraulic supports, and the inter- support flow to be detected can also be determined according to the detection rule. However, this flow sensor arrangement method has a high cost and has a high requirement for wiring. If the flow data of all hydraulic supports is measured and analyzed, the amount of data is also large.

[0040] Optionally, a preset detection point interval can also be obtained, the hydraulic supports are equally divided into multiple detection groups based on the detection point interval, the clear water pipes and / or emulsion inlet pipes and / or emulsion return pipes between each detection group are taken as target flow detection points, and the flow sensors are arranged at the target flow detection points. It should be noted that the detection point interval can be set in advance and can be set according to actual test needs, which is not limited here. For example, the detection point interval can be 5, that is, every 5 hydraulic supports, the pipeline between the next hydraulic support and its adjacent hydraulic support is determined as a target flow detection point.

[0041] Optionally, the clear water pipes and / or emulsion inlet pipes and / or emulsion return pipes between the adjacent two hydraulic supports set in advance can also be taken as target flow detection points. It should be noted that the target flow detection points are at least two, and are arranged at least at the head and tail of the working face. Each pipe group contains one to multiple pipelines, and the pipe group flow is the superposition of each pipeline, for example, in a hydraulic support group containing x hydraulic supports, the head liquid inlet passage group is the sum of the liquid inlet flows of the x hydraulic supports, Qja=Qja1+Qja2+…+Qjax, where Qjax is the xth hydraulic support in the hydraulic support group, and Qja is the sum of the liquid inlet flows.

[0042] The control module is used to receive the data reported by the hydraulic support pressure support electro-hydraulic control unit and generate control instructions, which are sent to the hydraulic support pressure support electro-hydraulic control unit. It should be noted that each hydraulic support includes a hydraulic support electro-hydraulic control unit, which is used to receive the data collected by the pressure sensor and the flow sensor and upload it to the control module. It should be noted that at the same time, the hydraulic support electro-hydraulic control unit can also control the hydraulic support and the pressure sensor and the flow sensor to operate based on the control instructions based on the control instructions to adjust the state of the hydraulic support, so as to realize closed-loop control of the hydraulic support. For example, based on the control instructions, the hydraulic support performs the operation of moving the support or stops the current action, etc.

[0043] Specifically, the control module determines the current working data of the hydraulic support group and the liquid supply pump based on the received data reported by the hydraulic support pressure support electro-hydraulic control unit, and then compares the working data with the normal working data to determine the current working state of the hydraulic support group and the liquid supply pump. For example, the working node of the hydraulic support can be determined by obtaining the pipeline data of the hydraulic support. In the current technology, the working node can be one of the states of descending column, moving support, ascending column and pushing.

[0044] Optionally, it can also be determined through analysis of the collected data whether the current working state of the hydraulic support is an abnormal working state. For example, when the pressure valley value of the inlet channel is lower than a certain value, the pressure peak value of the outlet pipe is higher than a certain value, or the current liquid supply point is a weak liquid supply point, etc., it can be considered that the current working state is an abnormal working state. When the current obtained sensor values are all within the normal range, it can be considered that the current working state is a normal working state.

[0045] The liquid supply pump further comprises an integrated liquid supply control unit, which is used to obtain the total liquid supply flow, the total backflow flow, the total liquid supply pressure and the total backflow pressure, and upload them to the control module. At the same time, the hydraulic support electro-hydraulic control unit can also control the liquid supply pump and the pressure sensor and flow sensor attached to the liquid supply pump to operate based on the control instruction sent by the control module, so as to realize closed-loop control of the liquid supply pump.

[0046] In the embodiments of the present disclosure, the flow sensor for collecting the main inlet flow is generally arranged before and after the high-pressure filtering station or at the junction of the gateway and the coal mining face, and the flow sensor for collecting the main backflow is generally arranged before and after the backflow filtering station or at the junction of the gateway and the coal mining face. In this way, the collected total liquid supply pressure and total backflow pressure are more accurate.

[0047] In the embodiments of the present disclosure, the control module can also calculate the liquid consumption of the hydraulic support action in the interval according to the data of different flow sections, in combination with the electro-hydraulic control program action instruction data. The data can be specific to the real-time liquid consumption of certain actions of certain supports. When the support only acts a single support single action in the interval, the liquid consumption of the action can be measured.

[0048] Optionally, the control module can also calculate the liquid consumption of the hydraulic support action in the interval according to the data of different flow sections, in combination with the electro-hydraulic control program action instruction data. Through analysis, it can be specific to the real-time liquid consumption of certain actions of certain supports. When the support only acts a single support single action in the interval, the liquid consumption of the action can be measured.

[0049] It should be noted that the control module and the hydraulic support electro-hydraulic control unit are in communication connection. The communication connection can be wired connection or wireless connection, which is not limited here.

[0050] It should be noted that the pressure sensor and the flow sensor are in communication connection with the hydraulic support electro-hydraulic control unit.

[0051] Optionally, the pressure sensor and the flow sensor are transmitted to the fully mechanized coal mining face network relay point wirelessly, and the pressure signal is transmitted to the hydraulic support electro-hydraulic control unit for processing through the fully mechanized coal mining face network bus or wireless base station.

[0052] Optionally, the pressure sensor and flow sensor can have a built-in wireless transmission module or an external wireless transmission module. The electro-hydraulic control unit of the hydraulic support is equipped with a receiver 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.

[0053] In this embodiment, if the inlet channel, return channel, and clean water channel 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 has no movement. 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 taken as 0.6-0.95, and Pt is the set pressure of the emulsion pump station unloading valve. Clean water channel: When the clean water pump starts, the hydraulic support of the working face has no hydraulic action for clean water supply, such as spraying. At this time, the sampling point where the pressure value Q≥kq*Qt is the inlet pressure sampling point, kq is the proportional coefficient, which is 0.6-0.95, and Q is the set pressure of the overflow valve of the spray pump station; return liquid channel: shut down all emulsion pump stations and clean water pump stations, operate several hydraulic supports, and the pressure sampling reading fluctuates, which is the return liquid pressure sampling point.

[0054] To improve the quality and speed of data acquisition and reduce the amount of data that needs to be analyzed in real time, the control module may include multiple working modes, including a first acquisition mode and a second acquisition mode.

[0055] Optionally, in the first acquisition mode, adjacent hydraulic supports at a preset interval in the hydraulic support group can be sequentially used as a data acquisition group, and the sensor states of the pressure sensors and flow sensors on several data acquisition groups can be controlled to switch to data acquisition state.

[0056] Optionally, in the second acquisition mode, the sensor states of all first pressure sensors and first flow sensors are switched to data acquisition state.

[0057] The control module 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 the fluid supply control unit of the hydraulic support. The control module performs real-time status analysis and adjusts the data acquisition mode and the 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 and the fluid supply pump.

[0058] Optionally, when the hydraulic support and the liquid supply pump are in a normal state, the control module switches to the first acquisition mode. Through selecting a plurality of acquisition groups, data acquisition is performed, and then the collected data is reported to the hydraulic support electro-hydraulic control unit and ultimately to the control module. It should be noted that a plurality of acquisition groups can be randomly selected as target acquisition groups, and a certain interval can also be set to select a plurality of acquisition groups as target acquisition groups, which is not limited here.

[0059] Corresponding to the hydraulic support intelligent liquid supply method provided in the above several embodiments, one embodiment of the present disclosure also provides a hydraulic support intelligent liquid supply device, which includes the hydraulic support intelligent liquid supply system in the above embodiments, so the implementation manner of the above hydraulic support intelligent liquid supply method is also applicable to the hydraulic support intelligent liquid supply device provided in the embodiment of the present disclosure, which will not be described in detail in the following embodiments.

[0060] In order to realize the above-mentioned embodiments, an electronic device is also proposed in the embodiments of the present disclosure, which includes the hydraulic support intelligent liquid supply system in the above-mentioned embodiments.

[0061] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0062] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise specifically limited.

[0063] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0064] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present disclosure, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A hydraulic support intelligent liquid supply system, characterized in that, The system comprises: a hydraulic support group, a liquid supply pump and a control module; a liquid supply end of the liquid supply pump is connected to a liquid inlet end of the hydraulic support group, and a liquid return end of the liquid supply pump is connected to a liquid return end of the hydraulic support group; the hydraulic support group comprises a plurality of hydraulic supports, and the hydraulic supports are connected to be provided with a clean water pipe, an emulsion inlet pipe and an emulsion return pipe which are not communicated with each other, and the clean water pipe, the emulsion inlet pipe and the emulsion return pipe are controlled and switched by a multi-way block; the hydraulic support group further comprises a plurality of pressure sensors, and the pressure sensors are arranged on the multi-way block; the hydraulic support group further comprises a plurality of flow sensors, and the flow sensors are arranged on the clean water pipe and / or the emulsion inlet pipe and / or the emulsion return pipe between adjacent two hydraulic supports; each of the hydraulic supports comprises a hydraulic support electro-hydraulic control unit, and the hydraulic support electro-hydraulic control unit is used to receive data collected by the pressure sensors and the flow sensors; the liquid supply pump further comprises an integrated liquid supply control unit, and the integrated liquid supply control unit is used to obtain total liquid supply flow, total return flow, total liquid supply pressure and total liquid return pressure; the control module is used to receive data reported by the hydraulic support electro-hydraulic control unit and the integrated liquid supply control unit, and generate control instructions and issue the control instructions to the hydraulic support electro-hydraulic control unit and the integrated liquid supply control unit; the system further comprises: taking the clean water pipe and / or the emulsion inlet pipe and / or the emulsion return pipe between adjacent two hydraulic supports in the hydraulic support group as a target flow detection point; or obtaining a preset detection point interval, equally dividing the hydraulic supports into a plurality of detection groups based on the detection point interval, and taking the clean water pipe and / or the emulsion inlet pipe and / or the emulsion return pipe between each of the detection groups as a target flow detection point; or determining the clean water pipe and / or the emulsion inlet pipe and / or the emulsion return pipe between adjacent two hydraulic supports as the target flow detection point in advance; arranging the flow sensors on the target flow detection point.

2. The system of claim 1, wherein, The system further comprises: determining a target hydraulic support in the hydraulic support group; arranging the pressure sensors on the target hydraulic support.

3. The system of claim 2, wherein, The determination of the target hydraulic support in the hydraulic support group comprises: taking each of the hydraulic supports in the hydraulic support group as the target hydraulic support; or obtaining a preset acquisition interval, and taking adjacent hydraulic supports in the preset interval as the target hydraulic support; or taking a hydraulic support determined in advance as the target hydraulic support.

4. The system of claim 1, wherein, The control module is used to receive data reported by the hydraulic support electro-hydraulic control unit and the integrated liquid supply control unit, and generate control instructions, comprising: the control module determines current operation data of the hydraulic support group and the liquid supply pump based on the received data reported by the hydraulic support electro-hydraulic control unit and the integrated liquid supply control unit; comparing the operation data with normal operation data to determine a current working state of the hydraulic support group and the liquid supply pump; In response to the working state being an abnormal working state, the control instruction is generated based on the job data.

5. The system of claim 4, wherein, The system further comprises: The hydraulic support electro-hydraulic control unit receives the control instruction and controls the hydraulic support group to change state based on the control instruction; and The integrated liquid supply control unit receives the control instruction and controls the liquid supply pump to change state based on the control instruction.

6. The system of claim 1, wherein, The pressure sensor and the flow sensor are each provided with a wireless transmission device, and the hydraulic support electro-hydraulic control unit is provided with a receiving device that interfaces with the wireless transmission device.

7. The system of claim 1, wherein, The system further comprises: The hydraulic support group and the liquid supply pump are provided with a liquid return filtering station and a high-pressure filtering station, the liquid return filtering station and the hydraulic support group / the liquid supply pump are provided with sensors for detecting the total liquid supply flow and the total liquid supply pressure, and the high-pressure filtering station and the hydraulic support group / the liquid supply pump are provided with sensors for detecting the total liquid return flow and the total liquid return pressure.

8. A hydraulic support intelligent liquid supply device, characterized in that, The system as claimed in any one of claims 1-7.

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