Hydraulic support rapid liquid supply system and method based on double pressure sensors

Abstract

The invention discloses a hydraulic support rapid liquid supply system and method based on double pressure sensors. The system comprises an energy accumulator, a first pressure sensor, a second pressure sensor, a switch valve and a controller. Wherein the first pressure sensor is connected with the energy accumulator, the energy accumulator is further connected with the first end of the switch valve, the second end of the switch valve is connected with the second pressure sensor, and the second pressure sensor is connected with the liquid inlet pipe; the switch valve is used for controlling connection and disconnection between the energy accumulator and a liquid inlet pipe in the hydraulic system; the controller is connected with the pressure sensor and the switch valve and used for comparing the internal pressure of the energy accumulator, the pressure of the liquid inlet pipe and the ideal pressure of the hydraulic equipment and judging whether the switch valve is controlled to be opened or not according to the comparison result. According to the system, by controlling opening and closing of the liquid port of the energy accumulator, the pressure stabilizing and flow compensation effects of the energy accumulator can be achieved, and meanwhile liquid grabbing between the energy accumulator and the hydraulic support is effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic support fluid supply control, and in particular to a hydraulic support rapid fluid supply system and method based on dual pressure sensors. Background Art

[0002] Currently, automated tracking technology in intelligent mining requires prompt and rapid hydraulic support frame movement, necessitating a sufficient emulsion flow rate to the hydraulic supports. However, current hydraulic systems typically utilize a centralized fluid supply, which cannot meet the intermittent, high-flow requirements of hydraulic supports. Specifically, this method cannot meet the instantaneous flow requirements of multiple hydraulic supports operating simultaneously at certain times. This can cause significant pressure fluctuations on the working surface, slow frame movement, or even frame loss.

[0003] In related technologies, to prevent pressure fluctuations and insufficient flow in hydraulic systems, accumulators are typically added to the hydraulic system to store emulsion and use it to compensate for flow when the emulsion flow demand is high. However, in actual applications, after the high-pressure emulsion stored in the accumulator is exhausted, the accumulator needs to absorb high-pressure emulsion from the pump station. At the same time, the hydraulic support may also need to absorb high-pressure emulsion, resulting in a phenomenon where the accumulator and the hydraulic support simultaneously absorb emulsion from the pump station through the liquid inlet pipe, affecting the normal operation of the hydraulic support.

[0004] Therefore, how to avoid the phenomenon of fluid grabbing between the accumulator and the hydraulic support while giving full play to the function of the accumulator has become a problem that needs to be solved urgently. Summary of the Invention

[0005] The purpose of this application is to solve one of the above technical problems at least to a certain extent.

[0006] To this end, the first objective of this application is to provide a rapid fluid supply system for a hydraulic support based on dual pressure sensors. This system controls the opening and closing of the accumulator's fluid port by comparing the pressure of the emulsion in the accumulator and the emulsion in the inlet pipe. This system achieves accumulator pressure stabilization and flow compensation while effectively preventing fluid competition between the accumulator and the hydraulic support.

[0007] The second purpose of this application is to propose a method for quickly supplying fluid to a hydraulic support based on dual pressure sensors.

[0008] The third objective of this application is to provide an electronic device.

[0009] A fourth object of the present application is to provide a non-transitory computer-readable storage medium.

[0010] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a hydraulic support rapid fluid supply system based on dual pressure sensors, the system comprising: an accumulator, a first pressure sensor, a second pressure sensor, a switch valve and a controller; wherein,

[0011] The first pressure sensor is connected to the accumulator, and the first pressure sensor is used to monitor the internal pressure of the accumulator;

[0012] The accumulator is further connected to a first end of the switch valve, a second end of which is connected to the second pressure sensor. The accumulator is used to store emulsion to compensate for insufficient flow in the downhole hydraulic system. The switch valve is used to control the connection between the accumulator and the liquid inlet pipe in the hydraulic system.

[0013] The second pressure sensor is connected to the liquid inlet pipe, and the second pressure sensor is used to monitor the pressure of the liquid inlet pipe;

[0014] The controller is connected to the first pressure sensor, the second pressure sensor and the switch valve respectively. The controller is used to compare the internal pressure of the accumulator, the pressure of the liquid inlet pipe and the ideal pressure of the hydraulic equipment, and determine whether to control the switch valve to open based on the comparison result. When the switch valve is opened, the accumulator is connected to the liquid inlet pipe.

[0015] In addition, the hydraulic support rapid fluid supply system based on dual pressure sensors according to the embodiment of the present application also has the following additional technical features:

[0016] Optionally, in some embodiments, the controller is specifically configured to control the switch valve to open when the internal pressure of the accumulator is greater than the pressure of the liquid inlet pipe.

[0017] Optionally, in some embodiments, the controller is specifically configured to control the switch valve to open when the pressure in the liquid inlet pipe is greater than the ideal pressure of the hydraulic equipment.

[0018] Optionally, in some embodiments, the hydraulic system further includes: a working surface control module, multiple hydraulic supports, a return liquid pipe, a pump station and a liquid tank; wherein the liquid inlet pipe is connected to the pump station, the liquid return pipe is connected to the liquid tank, and each of the hydraulic supports is respectively connected to the liquid inlet pipe and the liquid return pipe; the working surface control module is respectively connected to the multiple hydraulic supports, and the working surface control module is used to collect the working status parameters of the multiple hydraulic supports under the current working conditions and control the operation of the multiple hydraulic supports.

[0019] Optionally, in some embodiments, the working surface control module is specifically used to determine the ideal pressure of the hydraulic equipment under the current working condition according to the working state parameters, and send the ideal pressure of the hydraulic equipment under the current working condition to the controller.

[0020] To achieve the above-mentioned object, a second embodiment of the present invention provides a method for rapid fluid supply to a hydraulic support based on dual pressure sensors, which is applied to the rapid fluid supply system for a hydraulic support based on dual pressure sensors in the first embodiment. The method comprises:

[0021] Obtaining the internal pressure of the accumulator collected in real time by the first pressure sensor, obtaining the pressure of the liquid inlet pipe collected in real time by the second pressure sensor, and obtaining the ideal pressure of the hydraulic equipment under the current working condition;

[0022] The first condition is that the internal pressure of the accumulator is greater than the pressure of the liquid inlet pipe, and the second condition is that the pressure of the liquid inlet pipe is greater than the ideal pressure under the current working condition. When the first condition and / or the second condition are met, the switch valve is controlled to open to connect the accumulator and the liquid inlet pipe.

[0023] When it is determined according to real-time data that both the first condition and the second condition are not satisfied, the switch valve is controlled to be closed.

[0024] In addition, the rapid fluid supply method for a hydraulic support based on dual pressure sensors according to the embodiment of the present application also has the following additional technical features:

[0025] Optionally, in some embodiments, obtaining the ideal pressure of the hydraulic equipment under the current working conditions includes: collecting working state parameters of multiple hydraulic equipment under the current working conditions through the working surface control module; and determining the ideal pressure under the current working conditions based on the working state parameters.

[0026] Optionally, in some embodiments, controlling the switch valve to open includes: determining a hysteresis bandwidth according to an ideal pressure under the current operating condition; and opening the switch valve by hysteresis control in combination with the ideal pressure under the current operating condition and the hysteresis bandwidth.

[0027] To achieve the above objectives, a third embodiment of the present invention provides an electronic device, including:

[0028] processor;

[0029] a memory for storing instructions executable by the processor;

[0030] Wherein, the processor is configured to execute the instructions to implement the method for rapid fluid supply of a hydraulic support based on dual pressure sensors as described in any one of the embodiments of the second aspect above.

[0031] To achieve the above-mentioned purpose, the third aspect of the present invention proposes a non-temporary computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, it implements the method for rapid fluid supply of a hydraulic support based on dual pressure sensors as described in any one of the second aspect embodiments above.

[0032] The technical solutions provided by the embodiments of this application bring at least the following beneficial effects:

[0033] The present application controls the opening and closing of the accumulator's liquid port by comparing the pressure of the emulsion in the accumulator and the emulsion in the liquid inlet pipe, thereby achieving reasonable control of the liquid supply system. When the emulsion in the accumulator is sufficient and does not need to be supplied, the accumulator compensates the flow to the hydraulic system, and supplies liquid to the accumulator when the flow of the hydraulic system is sufficient. Therefore, the present application can, on the basis of giving full play to the pressure stabilization and agile liquid replenishment effects of the accumulator, avoid the phenomenon of liquid rushing caused by the accumulator and the bracket absorbing high-pressure emulsion from the pump station through the liquid inlet pipe at the same time after the emulsion in the accumulator is exhausted, causing the bracket to move too slowly. Therefore, the present application can quickly supply liquid to the hydraulic system through the accumulator, avoid pressure fluctuations and insufficient flow in the hydraulic system, and at the same time reduce the negative impact of the accumulator on the operation of the hydraulic bracket. The present application improves the agility, stability and reliability of liquid supply to the hydraulic bracket, which is conducive to ensuring the rapid and stable operation of the hydraulic bracket.

[0034] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0036] Figure 1 This is a schematic structural diagram of a rapid fluid supply system for a hydraulic support based on dual pressure sensors proposed in an embodiment of the present application;

[0037] Figure 2 A schematic diagram of a connection method between a rapid liquid supply system and a hydraulic system proposed in an embodiment of the present application;

[0038] Figure 3 This is a flow chart of a method for rapid fluid supply to a hydraulic support based on dual pressure sensors proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0039] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0040] The following describes a rapid fluid supply system and method for a hydraulic support based on dual pressure sensors according to an embodiment of the present application with reference to the accompanying drawings.

[0041] Figure 1 This is a structural diagram of a rapid fluid supply system for a hydraulic support based on dual pressure sensors proposed in an embodiment of the present application, as shown in FIG. Figure 1 As shown, the liquid supply system includes: an accumulator 10 , a first pressure sensor 20 , a second pressure sensor 30 , a switch valve 40 and a controller 50 .

[0042] The first pressure sensor 20 is connected to the accumulator 10 , and the first pressure sensor 20 is used to monitor the internal pressure of the accumulator 10 .

[0043] The accumulator 10 is also connected to the first end of an on-off valve 40, the second end of which is connected to a second pressure sensor 30. The accumulator 10 is used to store emulsion to compensate for insufficient flow in the downhole hydraulic system, thereby providing passive and agile fluid supply to each hydraulic support in the hydraulic system. The on-off valve 40 controls the connection between the accumulator 10 and the hydraulic system's fluid inlet pipe.

[0044] The second pressure sensor 30 is connected to the liquid inlet pipe and is used to monitor the pressure of the liquid inlet pipe.

[0045] The controller 50 is connected to the first pressure sensor 20, the second pressure sensor 30 and the switch valve 40 respectively. The controller 50 is used to compare the internal pressure of the accumulator, the pressure of the liquid inlet pipe and the ideal pressure of the hydraulic equipment, and determine whether to control the switch valve 40 to open based on the comparison result. When the switch valve 40 is opened, the accumulator 10 is connected to the liquid inlet pipe.

[0046] Specifically, the first pressure sensor 20 in this application is used to monitor the pressure of the emulsion within the accumulator 10, and the second pressure sensor 30 is used to monitor the pressure of the emulsion within the main inlet pipe of the hydraulic system (hereinafter referred to as the inlet pipe). The controller 50 is connected to the two pressure sensors via wireless or wired communication to obtain real-time pressure data collected by the first pressure sensor 20 and the second pressure sensor 30, respectively. The controller 50 then performs logical operations based on the real-time pressure data transmitted by the two pressure sensors to determine how to control the opening and closing of the switch valve 40 under the current conditions. The switch valve 40 then controls the connection between the accumulator 10 and the inlet pipe of the downhole hydraulic system.

[0047] As an example, the hydraulic system in this application can refer to the hydraulic system used in underground coal mining working faces in related technologies. For example, the hydraulic system includes an emulsion pump station, a filter station, a liquid inlet pipe, a liquid return pipe, and various hydraulic supports located at different positions on the working face to perform related functions.

[0048] The following describes in detail the logic by which the controller 50 controls the on-off valve 40 based on pressure data. In one embodiment of the present application, the controller is specifically configured to: control the on-off valve to open when the internal pressure of the accumulator is greater than the pressure in the inlet pipe; and control the on-off valve to open when the pressure in the inlet pipe is greater than the ideal pressure of the hydraulic equipment.

[0049] Specifically, in this embodiment, the control logic of the controller 50 is to control the switch valve 40 to open when any one or both of the following two conditions are met, so as to connect the accumulator 10 with the liquid inlet pipe of the hydraulic system.

[0050] Among them, the first condition is that the internal pressure of the accumulator 10 (data monitored by the first pressure sensor 20) is greater than the main liquid inlet pipe pressure (data monitored by the second pressure sensor 20); the second condition is that the main liquid inlet pipe pressure (data monitored by the second pressure sensor 20) is greater than the ideal pressure P of the hydraulic equipment.

[0051] The ideal pressure P of the hydraulic equipment is the ideal pressure required for normal operation of each hydraulic device on the working surface. This ideal pressure P is greater than the rated minimum operating pressure K of the hydraulic system, with a certain margin. In other words, when the pressure of the emulsion supplied to the hydraulic equipment is at this ideal pressure P, even if the accumulator 10 is filled at this time, the normal operation of the hydraulic equipment will not be affected.

[0052] It is understood that when the first condition is met, it indicates that the emulsion pressure inside the accumulator 10 is high and the emulsion content is sufficient. At this point, there is no need to charge the accumulator 10, and the accumulator 10 can replenish the hydraulic system with fluid. This allows the accumulator 10 to maximize its pressure stabilization and rapid fluid replenishment effects, and the accumulator 10 will not compete with the hydraulic support for fluid.

[0053] When the second condition is met, it indicates that the emulsion pressure within the main inlet pipe is high, indicating that the emulsion provided by the main inlet pipe is sufficient to meet the operating requirements of the various hydraulic devices. At this point, the accumulator 10 can be charged after opening the on-off valve 40. Specifically, whether to charge the accumulator 10 can be determined based on the current internal pressure of the accumulator 10. As described above, because the pressure in the main inlet pipe is greater than the ideal pressure of the hydraulic device, even if the accumulator 10 is charged at this time, the hydraulic device can still operate normally, and there will be no fluid competition between the accumulator 10 and the hydraulic support.

[0054] Therefore, when all or any of the above conditions are met, the controller 50 controls the switch valve 40 to open, and the accumulator 10 is connected to the liquid inlet pipe, which can achieve the accumulator's pressure stabilization and flow compensation functions while ensuring that the accumulator does not compete with the hydraulic support for liquid.

[0055] It should be noted that, since the ideal pressure P of the hydraulic equipment may vary in actual applications, in order to ensure the accuracy of the ideal pressure P obtained in the above embodiment, in one embodiment of the present application, the ideal pressure P can be determined by the working surface control module. Figure 2 As shown, in this embodiment, the hydraulic system includes: a working surface control module 1, a plurality of hydraulic supports 2, a liquid inlet pipe 3, a liquid return pipe 4, a pump station 5 and a liquid tank 6.

[0056] The liquid inlet pipe 3 is connected to the pump station 5, the liquid return pipe 4 is connected to the liquid tank 6, and each hydraulic support 2 is connected to the liquid inlet pipe 3 and the liquid return pipe 4. The working surface control module 1 is connected to each of the hydraulic supports 2. The working surface control module 1 is used to collect the working status parameters of the multiple hydraulic supports 2 under the current working conditions and control the operation of the multiple hydraulic supports 2. Figure 2 The K in it represents the rated minimum operating pressure of the hydraulic system collected by the information detection equipment.

[0057] Specifically, in this embodiment, each hydraulic support 2 is selected as hydraulic equipment (other types of hydraulic equipment may also be used in actual applications). The reversing valve of each hydraulic support 2 is respectively connected to the liquid inlet pipe 3 and the liquid return pipe 4. The working face control module 1 is connected to each hydraulic support 2 via wireless or wired means. In addition to controlling the normal operation of each hydraulic support 2, it also obtains the operating status parameters of each hydraulic support 2. The obtained operating status parameters of each hydraulic support 2 include, but are not limited to, support parameters, operating resistance, rated operating pressure, and the inclination of the current coal seam.

[0058] In this embodiment, the working surface control module 1 is specifically configured to determine the ideal pressure of the hydraulic equipment under the current working condition based on the working state parameters and transmit this ideal pressure to the controller. Specifically, the working surface control module 1 uses a relevant algorithm to calculate, based on the working state parameters of the hydraulic equipment under the current working condition, the ideal pressure value that satisfies the normal operation of each hydraulic device under the current working condition and also enables the accumulator 10 to be charged. This ideal pressure value under the current working condition is then transmitted to the controller 50 for logical analysis by the controller 50.

[0059] Thus, this embodiment rationally determines an ideal pressure value that meets the current operating conditions for the hydraulic equipment, thereby improving the real-time and accuracy of the obtained ideal pressure value. The controller 50 then makes logical decisions about controlling the on-off valve 40 based on the ideal pressure value, further improving the accuracy of opening the on-off valve 40.

[0060] In summary, the dual-pressure-sensor-based rapid fluid supply system for a hydraulic support in the present embodiment achieves rational control of the hydraulic system by comparing the emulsion pressure in the accumulator and the emulsion inlet pipe to control the opening and closing of the accumulator's fluid port. When the accumulator is sufficiently filled with emulsion and no further fluid supply is required, the accumulator provides flow compensation to the hydraulic system. When the hydraulic system has sufficient fluid flow, the accumulator supplies fluid to the accumulator. This system, while leveraging the accumulator's pressure-stabilizing and agile fluid replenishment capabilities, avoids the phenomenon of the accumulator and the support simultaneously absorbing high-pressure emulsion from the pump station through the inlet pipe after the accumulator is depleted, causing the support to operate too slowly due to a fluid rush. This system rapidly supplies fluid to the hydraulic system through the accumulator, avoiding pressure fluctuations and insufficient flow in the hydraulic system while also reducing the negative impact of the accumulator on the operation of the hydraulic support. This system improves the agility, stability, and reliability of fluid supply to the hydraulic support, thereby ensuring the rapid and stable operation of the hydraulic support.

[0061] In order to more clearly illustrate the specific implementation process of controlling the rapid fluid supply system of a hydraulic support based on a dual pressure sensor to quickly supply fluid to the hydraulic system, a method for rapid fluid supply of a hydraulic support based on a dual pressure sensor proposed in an embodiment of the present application is described in detail below. This method is applied to the rapid fluid supply system of a hydraulic support based on a dual pressure sensor in the above embodiment, that is, the fluid supply method of this embodiment is implemented by performing relevant control on the fluid supply system in the above embodiment. The various devices involved in this method are as described in the above embodiment and will not be repeated here. The execution body of the method for rapid fluid supply of a hydraulic support based on a dual pressure sensor in the embodiment of the present application can be the controller in the above system embodiment.

[0062] Figure 3 This is a flow chart of a method for rapid fluid supply of a hydraulic support based on dual pressure sensors proposed in an embodiment of the present application, as shown in FIG. Figure 3 As shown, the method includes the following steps:

[0063] Step S101: obtaining the internal pressure of the accumulator collected in real time by the first pressure sensor, obtaining the pressure of the liquid inlet pipe collected in real time by the second pressure sensor, and obtaining the ideal pressure of the hydraulic equipment under the current working condition.

[0064] Specifically, during the actual operation of the hydraulic system of the present application and the downhole working surface, the first and second pressure sensors are used to collect the internal pressure of the accumulator and the pressure of the liquid inlet pipe in real time. The ideal pressure of each hydraulic device on the working surface under the current working conditions is also obtained.

[0065] In one embodiment of the present application, obtaining the ideal pressure of the hydraulic equipment under the current working conditions includes: collecting working state parameters of multiple hydraulic equipment under the current working conditions through the working surface control module; and determining the ideal pressure under the current working conditions based on the working state parameters.

[0066] Specifically, in this embodiment, Figure 2 The working surface control module 1 calculates the real-time ideal pressure value based on the collected operating state parameters of each hydraulic device under the current working conditions. The specific implementation method of the sensor acquiring pressure data and calculating the ideal pressure value under the current working conditions can be referred to the relevant description of the above system embodiment and will not be repeated here.

[0067] Step S102: The internal pressure of the accumulator is greater than the pressure of the liquid inlet pipe as a first condition, and the pressure of the liquid inlet pipe is greater than the ideal pressure under the current working condition as a second condition. When the first condition and / or the second condition are met, the switch valve is controlled to open to connect the accumulator and the liquid inlet pipe.

[0068] Specifically, the system monitors the aforementioned parameters in real time during operation. When either or both of the following two conditions are met, the on-off valve is controlled to open, connecting the accumulator to the hydraulic system's inlet pipe. The first condition is that the accumulator's internal pressure (as monitored by the first pressure sensor) exceeds the main inlet pipe pressure (as monitored by the second pressure sensor); the second condition is that the main inlet pipe pressure (as monitored by the second pressure sensor) exceeds the ideal pressure P of the hydraulic equipment.

[0069] Step S103: When it is determined according to the real-time data that both the first condition and the second condition are not satisfied, the switch valve is controlled to close.

[0070] Specifically, after the switch valve is opened, the above parameters are continuously monitored. When it is determined that both the first and second conditions are not met based on the real-time data after the internal pressure of the accumulator, the pressure of the liquid inlet pipe and the ideal pressure under the current working conditions, the switch valve is closed to avoid the accumulator and the hydraulic support from competing for liquid.

[0071] In one embodiment of the present application, controlling the opening of the switch valve includes: determining the hysteresis bandwidth according to the ideal pressure under the current working conditions; and opening the switch valve by hysteresis control in combination with the ideal pressure and hysteresis bandwidth under the current working conditions.

[0072] Specifically, in this embodiment, hysteresis control is employed to control the opening and closing of the on-off valve according to the second condition. Hysteresis control compares input signals by setting two thresholds based on the characteristics of a hysteresis comparator. The difference between these two thresholds is the hysteresis bandwidth, which determines the allowable error fluctuation range.

[0073] For example, two thresholds can be set as P+0.1 and P-0.1, and the switch valve is controlled to open when the pressure in the liquid inlet pipe is greater than P+0.1. When controlling the switch valve to close, the switch valve is controlled to close when the pressure in the liquid inlet pipe is less than P-0.1. Among them, the hysteresis bandwidth (-0.1 to +0.1) in this example can be adjusted according to actual needs in other scenarios. For example, the hysteresis bandwidth for the current hysteresis comparison can be determined in combination with the ideal pressure P under the current working conditions, and the hysteresis bandwidth can also be determined in combination with the current working parameters of the liquid supply system and the hydraulic system. This application does not impose any restrictions on this.

[0074] Therefore, this embodiment solves the problem of frequent opening and closing of the switch valve through hysteresis control logic, and can avoid frequent opening and closing of the development valve caused by severe pressure fluctuations when the switch valve is opened and closed.

[0075] In summary, the dual-pressure-sensor-based rapid fluid supply method for a hydraulic support implemented in this application achieves reasonable control of the hydraulic system by comparing the pressure of the emulsion in the accumulator and the inlet pipe, controlling the opening and closing of the accumulator's fluid port. This allows the accumulator to maintain pressure and provide agile fluid replenishment, while avoiding the phenomenon of the accumulator and the support simultaneously absorbing high-pressure emulsion from the pump station through the inlet pipe after the emulsion in the accumulator is exhausted, causing the support to move too slowly due to fluid rushing. As a result, this method can quickly supply fluid to the hydraulic system through the accumulator, avoiding pressure fluctuations and insufficient flow in the hydraulic system, while also reducing the negative impact of the accumulator on the operation of the hydraulic support. This method improves the agility, stability, and reliability of fluid supply to the hydraulic support, and is conducive to ensuring the rapid and stable operation of the hydraulic support.

[0076] To implement the above-mentioned embodiments, this application further provides an electronic device comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the method for rapid fluid supply to a hydraulic support using dual pressure sensors, as described in any one of the embodiments of the second aspect. For example, the electronic device may be a control device integrated with the aforementioned rapid fluid supply system for a hydraulic support downhole.

[0077] In order to implement the above embodiments, the present application also proposes a non-temporary computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements a method for rapid fluid supply of a hydraulic support based on dual pressure sensors as described in any one of the above second aspect embodiments of the present application.

[0078] It should be noted that it should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0079] In addition, in the description of this application, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0080] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0081] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0083] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A rapid fluid supply system for a hydraulic support based on dual pressure sensors, characterized in that: include: An accumulator, a first pressure sensor, a second pressure sensor, a switch valve and a controller; wherein, The first pressure sensor is connected to the accumulator, and the first pressure sensor is used to monitor the internal pressure of the accumulator; The accumulator is further connected to a first end of the switch valve, a second end of which is connected to the second pressure sensor. The accumulator is used to store emulsion to compensate for insufficient flow in the downhole hydraulic system. The switch valve is used to control the connection between the accumulator and the liquid inlet pipe in the hydraulic system. The second pressure sensor is connected to the liquid inlet pipe, and the second pressure sensor is used to monitor the pressure of the liquid inlet pipe; The controller is connected to the first pressure sensor, the second pressure sensor and the switch valve respectively. The controller is used to compare the internal pressure of the accumulator, the pressure of the liquid inlet pipe and the ideal pressure of the hydraulic equipment, and determine whether to control the switch valve to open based on the comparison result. When the switch valve is opened, the accumulator is connected to the liquid inlet pipe.

2. The system according to claim 1, wherein: The controller is specifically used for: When the internal pressure of the accumulator is greater than the pressure of the liquid inlet pipe, the switch valve is controlled to open.

3. The system according to claim 1, wherein: The controller is specifically used for: When the pressure in the liquid inlet pipe is greater than the ideal pressure of the hydraulic equipment, the switch valve is controlled to open.

4. The system according to claim 1, wherein: The hydraulic system also includes: a working surface control module, multiple hydraulic supports, a return pipe, a pump station and a liquid tank; wherein, The liquid inlet pipe is connected to the pump station, the liquid return pipe is connected to the liquid tank, and each of the hydraulic supports is connected to the liquid inlet pipe and the liquid return pipe respectively; The working surface control modules are respectively connected to the multiple hydraulic supports, and are used to collect working state parameters of the multiple hydraulic supports under current working conditions and control the operation of the multiple hydraulic supports.

5. The system according to claim 4, characterized in that The working surface control module is specifically used to: An ideal pressure of the hydraulic equipment under a current working condition is determined according to the working state parameter, and the ideal pressure of the hydraulic equipment under the current working condition is sent to the controller.

6. A method for rapid fluid supply of a hydraulic support based on dual pressure sensors, characterized in that: The method applied to the rapid fluid supply system of a hydraulic support based on a dual pressure sensor according to any one of claims 1 to 5 comprises the following steps: Obtaining the internal pressure of the accumulator collected in real time by the first pressure sensor, obtaining the pressure of the liquid inlet pipe collected in real time by the second pressure sensor, and obtaining the ideal pressure of the hydraulic equipment under the current working condition; The first condition is that the internal pressure of the accumulator is greater than the pressure of the liquid inlet pipe, and the second condition is that the pressure of the liquid inlet pipe is greater than the ideal pressure under the current working condition. When the first condition and / or the second condition are met, the switch valve is controlled to open to connect the accumulator and the liquid inlet pipe. When it is determined according to real-time data that both the first condition and the second condition are not satisfied, the switch valve is controlled to be closed.

7. The method according to claim 6, characterized in that The step of obtaining the ideal pressure of the hydraulic equipment under the current working condition includes: Collect working state parameters of multiple hydraulic equipment under current working conditions through the working surface control module; The ideal pressure under the current working condition is determined according to the working state parameter.

8. The method according to claim 7, characterized in that The controlling the switch valve to open comprises: determining a hysteresis band width according to an ideal pressure under the current working condition; The switch valve is opened by hysteresis control in combination with the ideal pressure under the current working condition and the hysteresis bandwidth.

9. An electronic device comprising: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the method for rapid fluid supply of a hydraulic support based on dual pressure sensors as described in any one of claims 6 to 8.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for rapid fluid supply of a hydraulic support based on dual pressure sensors as described in any one of claims 6 to 8 is implemented.

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