Pressure control method and control method of a drilling rig

Abstract

The application discloses a pressure control method and a control method of a drilling machine. The pressure control method is used for adjusting a pressure value of a pneumatic system. The pneumatic system comprises an air compressor, an air tank, an air inlet valve, an air outlet valve, a flow sensor, a pressure sensor, a control console and a controller. The pressure control method comprises the following steps: the controller acquires the pressure value collected by the pressure sensor; the controller judges whether the pressure value collected by the pressure sensor is greater than a set pressure threshold value, and if yes, sends a pressure reduction control instruction to at least one of the air compressor, the air inlet valve and the air outlet valve; and at least one of the air compressor, the air inlet valve and the air outlet valve performs a pressure reduction action according to the pressure reduction control instruction. The application has the beneficial effect of providing a pressure control method for improving the pressure value of a pneumatic system and a control method of a drilling machine.

Description

Technical Field

[0001] This invention relates to the field of automatic equipment control technology, and more specifically, to a pressure control method and a drilling rig control method. Background Technology

[0002] Air compressors are essential electrical equipment in industrial production, and their proper functioning plays a crucial role in ensuring safe industrial operations. With technological advancements, air compressors are also trending towards intelligent manufacturing.

[0003] In related technologies, operation is carried out through the control panel on the controller. Users adjust the pressure according to the pressure sensor on the gas tank, which requires manual adjustment and has a long response time. Summary of the Invention

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] Some embodiments of this application propose a pressure control method for adjusting the pressure value of a pneumatic system to solve the technical problems mentioned in the background section above.

[0006] As a first aspect of this application, some embodiments of this application provide a pressure control method for adjusting the pressure value of a pneumatic system, the pneumatic system including: an air compressor, an air tank, an inlet valve, an exhaust valve, a flow sensor, a pressure sensor, a control console, and a controller.

[0007] The air compressor is used to compress the gas medium, the air tank is used to store the gas medium, the inlet valve is used to adjust the amount of air entering the air compressor, the exhaust valve is used to adjust the amount of air discharged from the air tank, the flow sensor is used to detect the flow rate of the gas medium input to the air compressor, and the pressure sensor is used to detect the pressure of the gas medium in the air tank.

[0008] The control panel is used by the user to set the required air intake volume of the air compressor and the pressure value of the air tank. The controller is used to control at least one of the air compressor, the intake valve and the exhaust valve according to the air intake volume and the pressure value of the air tank set by the user through the control panel.

[0009] The pressure control method includes: the controller acquiring the pressure value collected by the pressure sensor; the controller determining whether the pressure value collected by the pressure sensor is greater than a set pressure threshold, and if so, sending a pressure reduction control command to at least one of the air compressor, intake valve, and exhaust valve; and at least one of the air compressor, intake valve, and exhaust valve performing a pressure reduction action according to the pressure reduction control command.

[0010] Furthermore, the pressure threshold is set as a dynamic pressure threshold, which is the pressure value set by the user through the console.

[0011] Furthermore, the pressure threshold is set to the maximum pressure threshold, which is a fixed pressure value that is greater than the maximum pressure value that can be set by the console.

[0012] Furthermore, the pressure reduction action includes: the intake valve reducing the amount of air entering the air compressor.

[0013] Furthermore, the pressure reduction action includes: increasing the amount of gas discharged from the gas storage tank through the exhaust valve.

[0014] Furthermore, the pressure control method also includes: when the controller determines whether the pressure value collected by the pressure sensor is less than or equal to the set pressure threshold, the controller sends a pressure boosting control command to at least one of the air compressor, the intake valve, and the exhaust valve; at least one of the air compressor, the intake valve, and the exhaust valve performs a pressure boosting action according to the pressure boosting control command.

[0015] Furthermore, the pressurization action includes: increasing the intake air volume into the air compressor via the intake valve.

[0016] Furthermore, the pressurization action includes: the exhaust valve reducing the amount of exhaust gas discharged from the gas storage tank.

[0017] Furthermore, the controller determines whether the intake volume of the current output control command is greater than the intake volume set by the user through the console. If so, the controller updates the intake volume of the control command to the intake volume set by the user through the console.

[0018] As a second aspect of this application, some embodiments of this application provide a control method for a drilling rig, the drilling rig including: a power head, an air tank, an air inlet valve, an air outlet valve, a flow sensor, a pressure sensor, a control console, and a controller.

[0019] The power head generates power under the action of the gas medium, the air compressor compresses the gas medium, the air tank stores the gas medium, the intake valve adjusts the intake volume of the air compressor, the exhaust valve adjusts the exhaust volume of the air tank, the flow sensor detects the flow rate of the gas medium input to the air compressor, and the pressure sensor detects the pressure of the gas medium in the air tank.

[0020] The control panel is used by the user to set the required air intake volume of the air compressor and the pressure value of the air tank. The controller is used to control at least one of the intake valve and exhaust valve according to the air intake volume and air tank pressure value set by the user through the control panel. The air tank is connected to the power head through a pipeline.

[0021] The control method of the drilling rig includes: the controller acquiring the pressure value collected by the pressure sensor; the controller determining whether the pressure value collected by the pressure sensor is greater than the set pressure threshold, and if so, sending a pressure reduction control command to at least one of the air compressor, the intake valve, and the exhaust valve; and at least one of the air compressor, the intake valve, and the exhaust valve performing a pressure reduction action according to the pressure reduction control command.

[0022] The beneficial effects of this application are: it provides an adaptive pressure control method that assists users in adjusting the pressure of the pneumatic system to balance the air supply quality and energy consumption, as well as a drilling rig control method.

[0023] More specifically, some embodiments of this application may produce the following specific beneficial effects: When the controller determines that the pressure value collected by the pressure sensor is greater than the set pressure threshold, it sends a pressure reduction control command to at least one of the air compressor, intake valve, and exhaust valve; at least one of the air compressor, intake valve, and exhaust valve then performs a pressure reduction action according to the pressure reduction control command. By using the air compressor, intake valve, and exhaust valve to perform the pressure reduction action, pressure can be reduced quickly and effectively.

[0024] When the controller determines that the pressure value collected by the pressure sensor is less than or equal to the set pressure threshold, the controller sends a pressure boosting control command to at least one of the air compressor, intake valve, and exhaust valve; at least one of the air compressor, intake valve, and exhaust valve performs a pressure boosting action according to the pressure boosting control command. This maintains the air intake volume near the maximum value that fully utilizes the air compressor's performance, based on the intake volume set by the user via the control panel.

[0025] When the controller determines that the intake volume of the current output control command is greater than the intake volume set by the user via the console, the controller updates the intake volume of the control command to the intake volume set by the user via the console. By comparing the intake volume set by the controller with the intake volume set by the user via the console, the controller executes the corresponding command, reducing manual intervention in the pressure control process and ensuring a rapid system response. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0027] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0028] In the attached diagram: Figure 1 This is a schematic diagram of the overall architecture of the pneumatic system of a drilling rig according to an embodiment of this application; Figure 2 yes Figure 1 A schematic block diagram of the pneumatic system architecture of the drilling rig in the illustrated embodiment. Figure 3 yes Figure 1 A schematic block diagram of the control architecture of the pneumatic system in the illustrated embodiment; Figure 4 This is a schematic diagram of the main steps of a pressure control method according to an embodiment of this application; Figure 5 It is to achieve Figure 4 A flowchart illustrating the first implementation scheme of the pressure control method shown; Figure 6 It is to achieve Figure 4 The flowchart of the second implementation scheme of the pressure control method shown is illustrated.

[0029] Meaning of the reference numerals in the accompanying drawings of this instruction manual 100. Pneumatic system; 101. Air compressor; 102. Air tank; 103. Inlet valve; 104. Exhaust valve; 105. Flow sensor; 106. Pressure sensor; 107. Control console; 108. Controller; 109. Air filter; 110. Power head; 111. Drill bit; 112. Temperature sensor; 113. Speed ​​control valve. Detailed Implementation

[0030] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0031] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0032] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0033] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0034] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0035] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] like Figure 1 As shown, the drilling rig, as an embodiment of this application, mainly includes: The pressure control method of this application relies on a pneumatic system 100.

[0037] It mainly includes: air compressor 101, air tank 102, air inlet valve 103, air outlet valve 104, flow sensor 105, pressure sensor 106, control console 107, and controller 108.

[0038] Air compressor 101 is used to compress gaseous media; air tank 102 is used to store gaseous media; intake valve 103 is used to adjust the intake volume of air entering air compressor 101; exhaust valve 104 is used to adjust the exhaust volume of air discharged from air tank 102; flow sensor 105 is used to detect the flow rate of gaseous media input to air compressor 101; pressure sensor 106 is used to detect the pressure of gaseous media in air tank 102; control console 107 is used for user operation to set the intake volume of air compressor 101 and the pressure value of air tank 102 as required by the user; controller 108 is used to control at least one of air compressor 101, intake valve 103 and exhaust valve 104 according to the intake volume of air compressor 101 and the pressure value of air tank 102 set by the user through control console 107.

[0039] The drilling rig includes a power head 110, an air compressor 101, an air tank 102, an intake valve 103, an exhaust valve 104, a flow sensor 105, a pressure sensor 106, a control console 107, and a controller 108.

[0040] Among them, the power head 110 is used to generate power under the action of gas medium, the air compressor 101 is used to compress gas medium, the air tank 102 is used to store gas medium, the intake valve 103 is used to adjust the intake volume of air entering the air compressor 101, the exhaust valve 104 is used to adjust the exhaust volume of air discharged from the air tank 102, the flow sensor 105 is used to detect the flow rate of gas medium input to the air compressor 101, and the pressure sensor 106 is used to detect the pressure of gas medium in the air tank 102.

[0041] The gas storage tank 102 is connected to the power head 110 via a pipeline.

[0042] Air passes through air filter 109, then through air intake valve 103, air compressor 101, and air tank 102, finally reaching power head 110. Power head 110 drives drill bit 111 to rotate, achieving the purpose of drilling.

[0043] The gas storage tank 102 is connected to the exhaust valve 104.

[0044] like Figure 3 As shown, the pneumatic system 100 also includes a temperature sensor 112 and a speed control valve 113.

[0045] Among them, temperature sensor 112 is used to detect the temperature of the fan of pneumatic system 100; speed control valve 113 is used to adjust the speed of fan of pneumatic system 100, thereby controlling the temperature at various parts of pneumatic system 100.

[0046] As a specific implementation, the fan operates at a low speed when the engine starts. During normal operation, the controller 108 monitors the temperature of the air compressor 101, hydraulic oil, engine intake, and engine fluid via the temperature sensor 112. Based on the temperature requirements for normal operation of each component, the controller 108 maintains the fan at the minimum fan speed. If any temperature exceeds a set value, the controller controls the speed control valve 113 to adjust the fan speed, thereby improving heat dissipation.

[0047] The control panel 107 is equipped with flow and pressure knobs for user operation to set the desired air intake volume of the air compressor 101 and the pressure value of the air tank 102. Other adjustable modules, such as control panels, are also applicable to this application.

[0048] This system can perform the following fault diagnosis: electrical faults in flow sensor 105, pressure sensor 106, flow knob, pressure knob, power supply voltage faults in electronic controller 108, excessively high or low voltage supply to pressure sensor 106, maximum pressure knob and compressor switch, and excessively high or low power supply voltage to flow sensor 105 and flow knob.

[0049] like Figure 4 As shown, the main steps of the pressure control method of this application are as follows: S201: The controller acquires the pressure value collected by the pressure sensor.

[0050] S202: The controller determines whether the pressure value collected by the pressure sensor is greater than the set pressure threshold. If so, it sends a pressure reduction control command to at least one of the air compressor, intake valve and exhaust valve.

[0051] S203: At least one of the air compressor, intake valve and exhaust valve performs a pressure reduction action according to the pressure reduction control command.

[0052] like Figure 5 As shown, in one embodiment of this application, the set pressure threshold is a dynamic pressure threshold, which is the pressure value set by the user through the console.

[0053] As a specific solution, the pressure reduction action includes: reducing the amount of air entering the air compressor via the intake valve.

[0054] The pressure control method also includes: when the controller determines whether the pressure value collected by the pressure sensor is less than or equal to the set pressure threshold, the controller sends a pressure boosting control command to at least one of the air compressor, the intake valve, and the exhaust valve; at least one of the air compressor, the intake valve, and the exhaust valve performs a pressure boosting action according to the pressure boosting control command.

[0055] As a specific solution, the pressurization action includes: increasing the intake air volume into the air compressor via the intake valve.

[0056] The controller determines whether the air intake volume of the current output control command is greater than the air intake volume set by the user through the console. If so, the controller updates the air intake volume of the control command to the air intake volume set by the user through the console.

[0057] The main steps of the pressure control method in this embodiment are as follows: S401: Determine if the air compressor is turned on. If not, proceed to S402; if yes, proceed to S403.

[0058] S402: The intake valve opens with the minimum flow required to prevent damage to the air compressor.

[0059] S403: The controller determines whether the pressure value P1 collected by the pressure sensor is greater than the air intake volume P2 of the air compressor set by the user through the control panel. If not, proceed to S404; if yes, proceed to S405.

[0060] S404: The controller controls the intake valve according to the air intake volume of the air compressor set by the user through the control panel.

[0061] S405: The controller sends a pressure reduction command signal to the intake valve to reduce the pressure in the air tank.

[0062] S406: The controller determines whether the pressure value P1 collected by the pressure sensor is greater than the air intake volume P2 of the air compressor set by the user through the control panel; if yes, execute S407; if no, execute S408.

[0063] S407: The controller controls the intake valve to reduce the amount of air entering the air compressor.

[0064] S408: The controller controls the intake valve to increase the amount of air entering the air compressor.

[0065] S409: After the controller executes S407 or S408, the controller determines whether the intake volume P3 of the currently output control command is greater than the intake volume P2 set by the user via the console. If not, return to execute S406; if yes, execute S410.

[0066] S410: The intake air volume of the control command is updated to the intake air volume P2 of the air compressor set by the user through the console.

[0067] like Figure 6 As shown, in another embodiment of this application, the set pressure threshold is a maximum pressure threshold, which is a fixed pressure value that is greater than the maximum pressure value that the console can set.

[0068] As a specific approach, the maximum pressure threshold is equal to the fixed pressure value of the maximum pressure that the console can set, plus 20 pounds per square inch.

[0069] As a specific solution, the pressure reduction action includes: increasing the amount of gas discharged from the gas storage tank through the exhaust valve.

[0070] The pressure control method also includes: when the controller determines whether the pressure value collected by the pressure sensor is less than or equal to the set pressure threshold, the controller sends a pressure boosting control command to at least one of the air compressor, the intake valve, and the exhaust valve; at least one of the air compressor, the intake valve, and the exhaust valve performs a pressure boosting action according to the pressure boosting control command.

[0071] As a specific solution, the pressurization action includes: reducing the amount of gas discharged from the gas storage tank by the exhaust valve.

[0072] S501: Determine if the air compressor is turned on. If not, proceed to S502; if yes, proceed to S503.

[0073] S502: The set pressure threshold of the controller is the minimum pressure of the gas storage tank.

[0074] S503: The controller receives a fixed pressure value that represents the maximum pressure that can be set on the control panel.

[0075] S504: The controller's set pressure threshold is the maximum pressure threshold P4, which is a fixed pressure value P5 that is greater than the maximum pressure value that the console can set.

[0076] S505: The controller acquires the pressure value P1 collected by the pressure sensor; the controller determines whether the pressure value P1 collected by the pressure sensor is greater than the set pressure threshold P4. If yes, execute S506; if no, execute S507.

[0077] S506: The controller controls the exhaust valve to increase the amount of exhaust gas discharged from the gas tank. Then, S508 is executed.

[0078] S507: The controller controls the exhaust valve to reduce the amount of exhaust gas discharged from the gas storage tank. Then, S508 is executed.

[0079] S508: Determine if the air compressor is off. If yes, the program execution ends; otherwise, continue with S505.

[0080] In an emergency, if the controller detects that the pressure value collected by the pressure sensor is greater than the maximum pressure threshold P4, the intake valve needs to be closed immediately while the exhaust valve is opened to ensure that the system can respond quickly to the overpressure peak.

[0081] The above control methods can be applied to a variety of pneumatically driven equipment, such as cement-soil mixing piles, industrial robots, and workpiece clamping and conveying on machining production lines.

[0082] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A pressure control method for adjusting the pressure value of a pneumatic system; in, The pneumatic system includes: An air compressor is used to compress gaseous media. Gas storage tanks are used to store gaseous media; An intake valve is used to adjust the amount of air entering the air compressor; An exhaust valve is used to adjust the amount of exhaust gas discharged from the gas storage tank; A flow sensor is used to detect the flow rate of the gas medium input to the air compressor; A pressure sensor is used to detect the pressure of the gas medium in the gas storage tank; The control panel is used by the user to set the desired air intake volume of the air compressor and the pressure value of the air tank. The controller is configured to control at least one of the intake valve and the exhaust valve based on the air intake volume of the air compressor and the pressure value of the air tank set by the user via the console. Its features are: The pressure control method includes: The controller acquires the pressure value collected by the pressure sensor; The controller determines whether the pressure value collected by the pressure sensor is greater than the set pressure threshold. If so, it sends a pressure reduction control command to at least one of the air compressor, the intake valve, and the exhaust valve. At least one of the air compressor, the intake valve, and the exhaust valve performs a pressure reduction action according to the pressure reduction control command; The controller determines whether the air intake volume of the currently output control command is greater than the air intake volume set by the user through the console. If so, the controller updates the air intake volume of the control command to the air intake volume set by the user through the console.

2. The pressure control method according to claim 1, characterized in that: The set pressure threshold is a dynamic pressure threshold, which is the pressure value set by the user through the console.

3. The pressure control method according to claim 1, characterized in that: The set pressure threshold is the maximum pressure threshold, which is a fixed pressure value that is greater than the maximum pressure value that the console can set.

4. The pressure control method according to claim 1, characterized in that: The blood pressure reduction action includes: The intake valve reduces the amount of air entering the air compressor.

5. The pressure control method according to claim 1, characterized in that: The blood pressure reduction action includes: The exhaust valve increases the amount of exhaust gas discharged from the gas storage tank.

6. The pressure control method according to any one of claims 1 to 5, characterized in that: The pressure control method further includes: When the controller determines whether the pressure value collected by the pressure sensor is less than or equal to a set pressure threshold, the controller sends a pressure boosting control command to at least one of the air compressor, the intake valve, and the exhaust valve. At least one of the air compressor, the intake valve, and the exhaust valve performs a pressure boosting operation according to the pressure boosting control command.

7. The pressure control method according to claim 6, characterized in that: The boosting action includes: The intake valve increases the amount of air entering the air compressor.

8. The pressure control method according to claim 6, characterized in that: The boosting action includes: The exhaust valve reduces the amount of exhaust gas discharged from the gas storage tank.

9. A method for controlling a drilling rig, the drilling rig comprising: A power head is used to generate power under the action of a gaseous medium. An air compressor is used to compress gaseous media. Gas storage tanks are used to store gaseous media; An intake valve is used to adjust the amount of air entering the air compressor; An exhaust valve is used to adjust the amount of exhaust gas discharged from the gas storage tank; A flow sensor is used to detect the flow rate of the gas medium input to the air compressor; A pressure sensor is used to detect the pressure of the gas medium in the gas storage tank; The control panel is used by the user to set the desired air intake volume of the air compressor and the pressure value of the air tank. The controller is configured to control at least one of the air compressor, the intake valve, and the exhaust valve based on the air intake volume of the air compressor and the pressure value of the air tank set by the user via the console. The gas storage tank is connected to the power head via a pipeline; Its features are: The control method for the drilling rig includes: The controller acquires the pressure value collected by the pressure sensor; The controller determines whether the pressure value collected by the pressure sensor is greater than the set pressure threshold. If so, it sends a pressure reduction control command to at least one of the air compressor, the intake valve, and the exhaust valve. At least one of the air compressor, the intake valve, and the exhaust valve performs a pressure reduction action according to the pressure reduction control command; The controller determines whether the air intake volume of the currently output control command is greater than the air intake volume set by the user through the console. If so, the controller updates the air intake volume of the control command to the air intake volume set by the user through the console.

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