Angular travel multi-stage throttle valve control device

Abstract

The invention discloses an angular travel multi-stage throttle valve control device, and relates to the technical field of liquid pressure executing mechanisms. The device comprises a control cabinet and an angular travel electric five-stage throttle valve, the control cabinet is connected with the angular travel electric five-stage throttle valve, the lower limiting angle of the angular travel electric five-stage throttle valve is 0 degree, the upper limiting angle of the angular travel electric five-stage throttle valve is 180 degrees, and the rotation range of a valve element of the angular travel electric five-stage throttle valve is 0-180 degrees. When the angle of the valve element is 0 degree, the valve element corresponds to a first-stage valve element hole site, when the angle of the valve element is 45 degrees, the valve element corresponds to a second-stage valve element hole site, when the angle of the valve element is 90 degrees, the valve element corresponds to a third-stage valve element hole site, when the angle of the valve element is 135 degrees, the valve element corresponds to a fourth-stage valve element hole site, and when the angle of the valve element is 180 degrees, the valve element corresponds to a fifth-stage valve element hole site. The control cabinet controls the angular travel electric five-stage throttle valve to act within the range of 180 degrees, and the control precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of liquid pressure actuators, and in particular to an angular travel multi-stage throttle valve control device. Background Art

[0002] Electric throttle valves are widely used in the oil and gas drilling equipment industry. The electric throttle valves are controlled to control the pressure reduction and throttling of high-pressure fluids in the pipeline. Different application requirements have different internal structures and different control throttling accuracy. In the past, control throttle valves were manual, hydraulic, electric, and electro-hydraulic composite. The structural forms were different and the control accuracy was also different.

[0003] Generally speaking, the angular travel range of the valve controlled by the angular travel hydraulic actuator is 0 degrees to 90 degrees. Due to the small control angle range, the control accuracy is low.

[0004] The authorization announcement number is CN221569044U, and the name is adjustable angular stroke hydraulic slow closing actuator. It solves the technical problem that the existing angular stroke hydraulic actuator has no slow closing device, but due to the small control angle range, the control accuracy is low.

[0005] The low precision of angular stroke throttling control has become a technical problem that needs to be solved urgently. Summary of the invention

[0006] The invention provides an angular travel multi-stage throttle valve control device, which solves the technical problem of low angular travel throttling control accuracy.

[0007] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows: A angular stroke multi-stage throttle valve control device comprises a control cabinet and an angular stroke electric multi-stage throttle valve, the control cabinet is connected to the angular stroke electric multi-stage throttle valve, the angular stroke electric multi-stage throttle valve is an angular stroke electric five-stage throttle valve, the lower limit angle of the angular stroke electric five-stage throttle valve is 0°, the upper limit angle of the angular stroke electric five-stage throttle valve is 180°, the rotation range of the valve core of the angular stroke electric five-stage throttle valve is 0° to 180°, when the angle of the valve core is 0°, it corresponds to the first-stage valve core hole position, when the angle of the valve core is 45°, it corresponds to the second-stage valve core hole position, when the angle of the valve core is 90°, it corresponds to the third-stage valve core hole position, when the angle of the valve core is 135°, it corresponds to the fourth-stage valve core hole position, and when the angle of the valve core is 180°, it corresponds to the fifth-stage valve core hole position.

[0008] A further technical solution is that: the first-level valve core hole position is the fully closed position, the second-level valve core hole position is the valve core Φ4mm hole position, the third-level valve core hole position is the valve core Φ6mm hole position, the fourth-level valve core hole position is the valve core Φ8mm hole position, and the fifth-level valve core hole position is the valve core Φ10mm hole position.

[0009] A further technical solution is that the angular stroke electric five-stage throttle valve includes an electric drive, a gear box and an angular stroke throttle valve connected in sequence, the angular stroke throttle valve includes an angular stroke throttle valve body, a valve core, a high-pressure fluid inlet fixedly connected to one end of the angular stroke throttle valve body and a high-pressure fluid outlet fixedly connected to one end of the angular stroke throttle valve body, the valve core is rotatably connected to the angular stroke throttle valve body, the lower part of the valve core is located inside the angular stroke throttle valve body, and the upper part of the valve core is located outside the angular stroke throttle valve body, the control cabinet is electrically connected to the electric drive, the electric drive 2-1 is electrically connected to the gear box, the electric drive and the gear box are fixed together, and the gear box is transmission-connected to the upper part of the valve core of the angular stroke throttle valve.

[0010] A further technical solution is that the control cabinet includes a cabinet body, a cabinet door rotatably connected to the cabinet body, a power switch fixed on the cabinet door, a power indicator light and a control unit, a main power explosion-proof plug fixed on the cabinet body, a driver power explosion-proof plug and a driver control explosion-proof plug, a safety circuit breaker fixed inside the cabinet body, a power supply, a programmable controller, an analog-to-digital conversion module, a TCP communication line and an explosion-proof isolation safety barrier, a main power cable, a driver power cable and a driver control cable; when the cabinet door is unfolded, the interior of the cabinet is exposed, and when the cabinet door is closed, the cabinet body is closed; the main power cable is electrically connected to the power switch of the control cabinet via the main power explosion-proof plug; the power switch, safety circuit breaker, power supply The responder and the programmable controller are electrically connected in sequence, the power switch is electrically connected to the power indicator light, the electric drive is electrically connected to the safety circuit breaker via the drive power cable and the drive power explosion-proof plug, the electric drive is electrically connected to the gear box, the programmable controller is electrically connected to the analog-to-digital conversion module and communicates bidirectionally, the programmable controller is electrically connected to the control unit via the TCP communication line and communicates bidirectionally, the analog-to-digital conversion module is electrically connected to the control end of the electric drive via the explosion-proof isolation safety barrier, the driver control explosion-proof plug and the driver control cable in sequence, and the feedback end of the electric drive is electrically connected to the analog-to-digital conversion module via the driver control cable, the driver control explosion-proof plug and the explosion-proof isolation safety barrier in sequence.

[0011] A further technical solution is that the control unit is a touch screen, and five touch areas are arranged on the touch screen, namely, a fully closed position button, a 4mm dot button, a 6mm dot button, an 8mm dot button and a 10mm dot button, and five feedback display areas are arranged on the touch screen, namely, a fully closed position indication, a 4mm in place indication, a 6mm in place indication, an 8mm in place indication and a 10mm in place indication.

[0012] A further technical solution is that it also includes an angle control indicator plate, which is located on the upper part of the gear box. The angle control indicator plate includes a central drive shaft and an angle indication parameter fixed on the central drive shaft. The valve core passes through the top of the gear box and is fixedly connected to the central drive shaft. The angle indication parameter is an identification text, and the angle indication parameters include 0°, 45°, 90°, 135° and 180°.

[0013] A further technical solution is that: the control cabinet also includes a control cabinet base, and the cabinet body is fixedly connected to the control cabinet base.

[0014] The beneficial effects of adopting the above technical solution are: A angular stroke multi-stage throttle valve control device comprises a control cabinet and an angular stroke electric five-stage throttle valve, wherein the control cabinet is connected to the angular stroke electric five-stage throttle valve, wherein the lower limit angle of the angular stroke electric five-stage throttle valve is 0°, the upper limit angle of the angular stroke electric five-stage throttle valve is 180°, the rotation range of the valve core of the angular stroke electric five-stage throttle valve is 0° to 180°, the angle of the valve core is 0° corresponding to the first-stage valve core hole position, the angle of the valve core is 45° corresponding to the second-stage valve core hole position, the angle of the valve core is 90° corresponding to the third-stage valve core hole position, the angle of the valve core is 135° corresponding to the fourth-stage valve core hole position, and the angle of the valve core is 180° corresponding to the fifth-stage valve core hole position. The control cabinet controls the angular stroke electric five-stage throttle valve to operate within a range of 180°, thereby improving the control accuracy.

[0015] Please refer to the detailed description of the specific implementation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the structural diagram of the control cabinet; Figure 2 It is the distribution diagram of explosion-proof isolation safety barriers in the control cabinet; Figure 3 It is the structural diagram of the angular stroke electric multi-stage throttle valve; Figure 4 It is a diagram showing the relationship between the structure and technical data of the angle control indicator plate; Figure 5 It is a principle block diagram of the present invention; Figure 6 It is the data flow diagram of the present invention.

[0017] Among them: 1-1 main power cable, 1-2 power switch, 1-3 power indicator light, 1-4 safety circuit breaker, 1-5 power supply, 1-6 programmable controller, 1-7 analog-to-digital conversion module, 1-8 touch screen, 1-9 TCP communication line, 1-10 explosion-proof isolation safety barrier, 1-11 main power explosion-proof plug, 1-12 drive power explosion-proof plug, 1-13 drive power cable, 1-14 drive control explosion-proof plug, 1-15 drive control cable, 1-16 control cabinet base, 2-1 electric drive, 2-2 gear box, 2-3 angular stroke throttle valve, 2-4 high-pressure fluid inlet, 2-5 high-pressure fluid outlet, 3 angle control indicator disk, 3-1 output analog data, 3-2 input analog, 3-3 throttling point stroke, 3-4 angle indication parameter, 3-5 center drive shaft. DETAILED DESCRIPTION

[0018] The purpose of this application is to provide an angular stroke electric multi-stage throttle valve. The multi-stage throttle holes of the valve core inside the throttle valve need to be precisely aligned, and the torque, stroke, analog quantity accuracy, resolution, etc. of the action require precise calculation and control of the control program. There has been no technical experience in controlling angular stroke electric throttle valves in the past, especially in the fine control of angular stroke throttling devices, which must be more in line with customers' requirements for equipment operational safety, precision, and stability.

[0019] A control device capable of finely controlling an angular-stroke electric throttle valve is needed, and has high precision, stability and user-friendly operation, so as to solve the problems of low degree of automatic control and poor wide adaptability in the existing technology in terms of precision angular-stroke throttling control.

[0020] The angular travel range of the angular travel of the valve controlled by the angular travel hydraulic actuator is 0 to 90 degrees. Due to the small control angle range, the control accuracy is low. The control angle range is 0 to 360 degrees. A large rotation angle will lead to low control efficiency. If it can be rotated in a loop, the control accuracy will be even lower.

[0021] The operating environment of equipment related to oil and gas well exploitation basically belongs to the high-pressure dangerous working condition area, and the relevant control devices must meet the corresponding explosion-proof protection level.

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0024] Embodiment 1: like Figure 1 to Figure 5 As shown, the present invention discloses an angular travel multi-stage throttle valve control device including a control cabinet, an angular travel electric multi-stage throttle valve and an angle control indicator plate 3.

[0025] like Figure 1 and Figure 2 As shown, the control cabinet includes a control cabinet base 1-16, a cabinet body fixedly connected to the control cabinet base 1-16, a cabinet door rotatably connected to the cabinet body, a power switch 1-2 fixed on the cabinet door, a power indicator light 1-3 and a touch screen 1-8, a main power explosion-proof plug 1-11 fixed on the cabinet body, a driver power explosion-proof plug 1-12 and a driver control explosion-proof plug 1-14, a safety circuit breaker 1-4 fixed inside the cabinet body, a power supply 1-5, a programmable controller 1-6, an analog-to-digital conversion module 1-7, a TCP communication line 1-9 and an explosion-proof isolation safety barrier 1-10, a main power cable 1-1, a driver power cable 1-13 and a driver control cable 1-15. When the cabinet door is unfolded, the interior of the cabinet is exposed, and when the cabinet door is closed, the cabinet body is closed.

[0026] like Figure 3 As shown, the angular stroke electric multi-stage throttle valve is an angular stroke electric five-stage throttle valve, which includes an electric driver 2-1, a gear box 2-2 and an angular stroke throttle valve 2-3 connected in sequence, the angular stroke throttle valve 2-3 includes an angular stroke throttle valve body, a valve core, a high-pressure fluid inlet 2-4 fixedly connected to one end of the angular stroke throttle valve body and a high-pressure fluid outlet 2-5 fixedly connected to one end of the angular stroke throttle valve body, the valve core is rotatably connected to the angular stroke throttle valve body, the lower part of the valve core is located inside the angular stroke throttle valve body, and the upper part of the valve core is located outside the angular stroke throttle valve body, the electric driver 2-1 is fixed together with the gear box 2-2, and the gear box 2-2 is meshedly connected with the upper part of the valve core of the angular stroke throttle valve 2-3.

[0027] The electric driver 2-1 is set as a high-precision driver with a resolution of 0.5% and an operating frequency of 1200 times / hour. The angular stroke throttle valve 2-3 is marked with a high-pressure fluid inlet 2-4 and a high-pressure fluid outlet 2-5.

[0028] like Figure 4As shown, the angle control indicator plate 3 is located on the upper part of the gear box 2-2. The angle control indicator plate 3 includes a central drive shaft 3-5 and an angle indicating parameter 3-4 fixed on the central drive shaft 3-5. The valve core passes through the top of the gear box 2-2 and is fixedly connected to the central drive shaft 3-5. The angle indicating parameter 3-4 is an identification text, and the angle indicating parameter 3-4 includes 0°, 45°, 90°, 135° and 180°.

[0029] The angle control indicator disk 3 indicates output analog quantity data 3-1, input analog quantity 3-2, throttling point position stroke 3-3 and angle indication parameter 3-4.

[0030] like Figure 5 As shown, the main power cable 1-1 is electrically connected to the power switch 1-2 of the control cabinet via the main power explosion-proof plug 1-11, the power switch 1-2, the safety circuit breaker 1-4, the power supply 1-5 and the programmable controller 1-6 are electrically connected in sequence, the power switch 1-2 is electrically connected to the power indicator light 1-3, the electric drive 2-1 is electrically connected to the safety circuit breaker 1-4 via the drive power cable 1-13 and the drive power explosion-proof plug 1-12, the electric drive 2-1 is electrically connected to the gear box 2-2, and the programmable controller 1-6 is electrically connected to the analog-to-digital converter The module 1-7 is electrically connected and communicates bidirectionally. The analog-to-digital conversion module 1-7 is electrically connected to the control end of the electric drive 2-1 via the explosion-proof isolation safety barrier 1-10, the driver control explosion-proof plug 1-14 and the driver control cable 1-15 in sequence. The feedback end of the electric drive 2-1 is electrically connected to the analog-to-digital conversion module 1-7 via the driver control cable 1-15, the driver control explosion-proof plug 1-14 and the explosion-proof isolation safety barrier 1-10 in sequence. The programmable controller 1-6 is electrically connected to the touch screen 1-8 via the TCP communication line 1-9 and communicates bidirectionally.

[0031] There are five touch areas on the touch screen 1-8, which are a fully closed position button, a 4mm dot position button, a 6mm dot position button, an 8mm dot position button and a 10mm dot position button. There are five feedback display areas on the touch screen 1-8, which are a fully closed position indication, a 4mm in-place indication, a 6mm in-place indication, an 8mm in-place indication and a 10mm in-place indication.

[0032] Among them, the model of the control cabinet is EPU-Q1200, the model of the angular travel electric multi-stage throttle valve is JXC-F600, and the model of the angle control indicator plate 3 is JXC-ZSP, which will not be repeated.

[0033] Working process description: The control cabinet is connected to the power supply through the main power cable, and uses the internal electrical parts and programs to input and output 4mA~20mA analog signals and switch signals to control the angular travel electric multi-stage throttle valve. The control cabinet is also equipped with a touch screen interface, which is designed with parameter settings, function buttons, status indication, alarm records and operation logs. According to the design requirements of the angular travel multi-stage throttle valve, the throttling points are set to throttle full close position, throttle 4mm point, throttle 6mm point, throttle 8mm point and throttle 10mm point. It is equipped with an angle control indicator disk, which is set to 0~180 degrees, corresponding to the internal orifice plate of the multi-stage throttle valve. The angular travel electric multi-stage throttle valve is equipped with an electric driver, which is high-precision and high-resolution. It can receive and feedback 4mA~20mA analog signals, output the calibrated 0%~100% stroke value, and has switch state input and output indication functions, torque protection and other functions. Details are as follows.

[0034] like Figure 1 As shown, the external main power supply supplies power to the entire control cabinet through the main power cable 1-1 and the main power explosion-proof plug 1-11, the power switch 1-2 controls the main power on or off, and has short circuit and leakage protection functions, and the power indicator light 1-3 is lit or off to indicate whether the main power is normal.

[0035] The safety circuit breaker 1-4 supplies power to the electric drive 2-1 through the driver power explosion-proof plug 1-12 and the driver power cable 1-13. The safety circuit breaker 1-4 has short circuit, overload and overcurrent protection functions, which can effectively maintain the normal operation of the load equipment.

[0036] like Figure 2 As shown, the power switch 1-2 supplies power to the power supply 1-5, and the power supply 1-5 converts the main power into DC24V. The DC24V power is supplied to the programmable controller 1-6, analog-to-digital conversion module 1-7, touch screen 1-8, TCP communication line 1-9 and explosion-proof isolation safety barrier 1-10 inside the control cabinet, and the touch screen 1-8 is connected to the programmable controller 1-6 through the TCP communication line 1-9.

[0037] like Figure 5 As shown, the touch screen 1-8 is programmed with an operation interface program, and is provided with a full-close position button, a 4mm dot position button, a 6mm dot position button, an 8mm dot position button and a 10mm dot position button for throttling, and is also provided with prompt areas for displaying feedback signals to know whether the execution is in place, which are respectively a full-close position indication, a 4mm in place indication, a 6mm in place indication, an 8mm in place indication and a 10mm in place indication, as well as parameter setting values, feedback values, status indications, alarm records and operation logs for users to directly operate the equipment.

[0038] like Figure 5As shown, a logic program is written inside the programmable controller 1-6 for controlling the entire system. The programmable controller 1-6 receives the digital signal sent by the touched key on the touch screen 1-8, and controls the analog-to-digital conversion module 1-7 to output the corresponding analog control signal, that is, output analog data 3-1. The analog-to-digital conversion module 1-7 can output the analog control signal 4mA~20mA to the explosion-proof isolation safety barrier 1-10. The explosion-proof isolation safety barrier 1-10 transmits the isolated 4mA~20mA analog control signal to the electric driver 2-1 after conversion. After the electric driver 2-1 completes the action, it feeds back the 4mA~20mA analog signal, that is, inputs the analog quantity 3-2 to the explosion-proof isolation safety barrier 1-10, and transmits the isolated 4mA~20mA analog signal to the analog-to-digital conversion module 1-7 after conversion. The analog-to-digital conversion module 1-7 converts the analog signal into the corresponding digital signal and informs the programmable controller 1-6. The programmable controller 1-6 controls the feedback display area of ​​the touch screen 1-8 to display accordingly. The data exchange between the above explosion-proof isolation safety barrier 1-10 and the electric driver 2-1 is completed through the driver control explosion-proof plug 1-14 and the driver control cable 1-15.

[0039] The control cabinet outputs 4mA~20mA analog signal to control the angular stroke electric multi-stage throttle valve to perform precise throttling action. The analog output steps are 4mA, 8mA, 12mA, 16mA, and 20mA.

[0040] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the electric driver 2-1 drives the angular stroke throttle valve 2-3 through the gear box 2-2. The angular stroke throttle valve 2-3 is designed with a throttling point stroke 3-3, and the throttling points include the fully closed position, Φ4mm hole position, Φ6mm hole position, Φ8mm hole position and Φ10mm hole position. The angular stroke throttle valve 2-3 and the gear box 2-2 are designed for 0-180° angular stroke action, and are provided with an angle indication parameter 3-4, with angle distribution points of 0°, 45°, 90° and 180°. The electric driver 2-1 is designed with an output control mode, corresponding to the input analog quantity 3-2, i.e., the driver % opening, which are 0%, 25%, 50% and 100% respectively.

[0041] When the operator touches the fully closed position button, the touch screen 1-8 informs the programmable controller 1-6, and the programmable controller 1-6 controls the analog-to-digital conversion module 1-7 to output a 4mA analog signal and sends it to the electric driver 2-1. The electric driver 2-1 does not move, that is, it performs a 0% opening, the gear box 2-2 does not move, the valve core does not move, the angular stroke throttle valve 2-3 remains in the fully closed position, and the angle of the central drive shaft 3-5 of the angle control indicator disk 3 is 0°. After the electric driver 2-1 completes the action, it feeds back a 4mA analog signal and sends it to the analog-to-digital conversion module 1-7. After receiving the feedback 4mA analog signal, the analog-to-digital conversion module 1-7 converts it into a corresponding digital signal and informs the programmable controller 1-6. The programmable controller 1-6 controls the fully closed position indication display of the touch screen 1-8.

[0042] When the operator touches the 4mm dot button, the touch screen 1-8 informs the programmable controller 1-6, and the programmable controller 1-6 controls the analog-to-digital conversion module 1-7 to output an 8mA analog signal and sends it to the electric driver 2-1. The electric driver 2-1 electrically drives the gear box 2-2 to work, that is, to perform a 25% opening. The gear box 2-2 drives the valve core of the angular stroke throttle valve 2-3 to rotate, so that the angular stroke throttle valve 2-3 reaches the Φ4mm hole position, and the angle of the central drive shaft 3-5 of the angle control indicator disk 3 is 45°. After the electric driver 2-1 completes the action, it feeds back an 8mA analog signal and sends it to the analog-to-digital conversion module 1-7. After receiving the feedback 8mA analog signal, the analog-to-digital conversion module 1-7 converts it into a corresponding digital signal and informs the programmable controller 1-6. The programmable controller 1-6 controls the 4mm in-place indication display of the touch screen 1-8.

[0043] When the operator touches the 6mm dot button, the touch screen 1-8 informs the programmable controller 1-6, and the programmable controller 1-6 controls the analog-to-digital conversion module 1-7 to output a 12mA analog signal and sends it to the electric driver 2-1. The electric driver 2-1 electrically drives the gear box 2-2 to work, that is, to perform a 50% opening. The gear box 2-2 drives the valve core of the angular stroke throttle valve 2-3 to rotate, so that the angular stroke throttle valve 2-3 reaches the Φ6mm hole position, and the angle of the central drive shaft 3-5 of the angle control indicator disk 3 is 90°. After the electric driver 2-1 completes the action, it feeds back a 12mA analog signal and sends it to the analog-to-digital conversion module 1-7. After receiving the feedback 12mA analog signal, the analog-to-digital conversion module 1-7 converts it into a corresponding digital signal and informs the programmable controller 1-6. The programmable controller 1-6 controls the 6mm in-place indication display of the touch screen 1-8.

[0044] When the operator touches the 8mm dot button, the touch screen 1-8 informs the programmable controller 1-6, and the programmable controller 1-6 controls the analog-to-digital conversion module 1-7 to output a 16mA analog signal and sends it to the electric driver 2-1. The electric driver 2-1 electrically drives the gear box 2-2 to work, that is, to perform a 75% opening. The gear box 2-2 drives the valve core of the angle stroke throttle valve 2-3 to rotate, so that the angle stroke throttle valve 2-3 reaches the Φ8mm hole position, and the angle of the central drive shaft 3-5 of the angle control indicator disk 3 is 135°. After the electric driver 2-1 completes the action, it feeds back a 16mA analog signal and sends it to the analog-to-digital conversion module 1-7. After receiving the feedback 16mA analog signal, the analog-to-digital conversion module 1-7 converts it into a corresponding digital signal and informs the programmable controller 1-6. The programmable controller 1-6 controls the 8mm in-place indication display of the touch screen 1-8.

[0045] When the operator touches the 10mm point button, the touch screen 1-8 informs the programmable controller 1-6, and the programmable controller 1-6 controls the analog-to-digital conversion module 1-7 to output a 20mA analog signal and sends it to the electric driver 2-1. The electric driver 2-1 electrically drives the gear box 2-2 to work, that is, to perform 100% opening. The gear box 2-2 drives the valve core of the angle stroke throttle valve 2-3 to rotate, so that the angle stroke throttle valve 2-3 reaches the Φ10mm hole position, and the angle of the central drive shaft 3-5 of the angle control indicator disk 3 is 180°. After the electric driver 2-1 completes the action, it feeds back a 20mA analog signal and sends it to the analog-to-digital conversion module 1-7. After receiving the feedback 20mA analog signal, the analog-to-digital conversion module 1-7 converts it into a corresponding digital signal and informs the programmable controller 1-6. The programmable controller 1-6 controls the 10mm in-place indication display of the touch screen 1-8.

[0046] like Figure 3 As shown, the angle control indicator plate 3 is an indicator component, similar to a dial, and is arranged above the gear box 2-2. The first purpose is to indicate the angle travel, and the second purpose is to indicate the relationship between the control signal of the control cabinet, the drive signal of the electric driver 2-1, the valve core position of the angular travel electric multi-stage throttle valve, and the rotation angle of the gear box 2-2.

[0047] like Figure 6 As shown, the valve core angle of the angular stroke electric multi-stage throttle valve is respectively aligned with the five throttling hole positions when it rotates, which directly corresponds to the operation interface program written on the touch screen 1-8, and the throttling full close position, throttling 4mm point position, throttling 6mm point position, throttling 8mm point position and throttling 10mm point position buttons are set.

[0048] Beneficial technical effects: The working principle is unique and efficient, and the control accuracy is excellent, making the throttling control of oil and gas high-pressure fluids more reasonable and stable, providing higher accuracy and efficiency for oil and gas production equipment.

[0049] The programmable controller 1-6 of the control cabinet controls the analog-to-digital conversion module 1-7 to output an analog control signal of 4mA, corresponding to an electric drive output opening of 0%, a gearbox angle indication point of 0°, and an angular stroke throttle valve throttling point in a fully closed position. At this time, the oil and gas high-pressure fluid is closed to a non-circulating state.

[0050] The programmable controller 1-6 of the control cabinet controls the analog-to-digital conversion module 1-7 to output an analog control signal of 8mA, which corresponds to an electric drive output opening of 25%. The gearbox angle is rotated to the 45° position, and the throttling point of the angular stroke throttle valve is opened to the Φ4mm hole position. At this time, the oil and gas high-pressure fluid passes through the Φ4mm hole position, and the flow and pressure are the specifications of the Φ4mm throttling hole position.

[0051] The programmable controller 1-6 of the control cabinet controls the analog-to-digital conversion module 1-7 to output an analog control signal of 12mA, which corresponds to an electric drive output opening of 50%. The gearbox angle is rotated to 90°, and the throttling point of the angular stroke throttle valve is opened to the Φ6mm hole position. At this time, the oil and gas high-pressure fluid passes through the Φ6mm hole position, and the flow and pressure are the specifications of the Φ6mm throttling hole position.

[0052] The programmable controller 1-6 of the control cabinet controls the analog-to-digital conversion module 1-7 to output an analog control signal of 16mA, which corresponds to an electric drive output opening of 75%. The gearbox angle is rotated to 135°, and the throttling point of the angular stroke throttle valve is opened to the Φ8mm hole position. At this time, the oil and gas high-pressure fluid passes through the Φ8mm hole position, and the flow and pressure are the specifications of the Φ8mm throttling hole position.

[0053] The programmable controller 1-6 of the control cabinet controls the analog-to-digital conversion module 1-7 to output an analog control signal of 20mA, corresponding to an output opening of 100% for the electric drive. The gearbox angle is rotated to 180°, and the throttling point of the angular stroke throttle valve is opened to the Φ10mm hole position. At this time, the oil and gas high-pressure fluid passes through the Φ10mm hole position, and the flow and pressure are the specifications of the Φ10mm throttling hole position.

[0054] The working mode of the angular stroke electric multi-stage throttle valve must be positioned by angle rotation. The throttling points include fully closed position, Φ4mm hole position, Φ6mm hole position, Φ8mm hole position and Φ10mm hole position. Under high pressure, the corresponding throttling holes are accurately positioned through the control cabinet control, and the oil and gas high-pressure fluids flow out from different throttling holes to achieve the effect of graded throttling and pressure reduction.

[0055] Analog explosion-proof isolation safety barriers are used in analog input and output control. Their function is to isolate the input and output analog signals of the control cabinet from the input and output analog signals of the on-site electric drive, to prevent the dangerous energy of non-intrinsically safe circuits from entering the intrinsically safe circuits, and to ensure that the energy transmitted to the on-site explosion-proof electric drive is intrinsically safe.

[0056] The internal parameters of the electric drive set the 0% fully closed position limit point and the 100% fully open position limit point to complete the control stroke setting. The angle stroke disc is set with a mechanical forced limit, which is limited in the direction less than 0° and greater than 180°.

[0057] The control cabinet and electric drive are both explosion-proof.

[0058] With the development of this technology, the economic benefits and safety of oil and gas development will be further improved. Based on this technology, more intelligent control solutions can be derived in the future, injecting new impetus into the development of the entire industry and promoting oil and gas extraction to a more intelligent and efficient direction.

[0059] Embodiment 2: The present invention discloses an angular travel multi-stage throttle valve control device, including a control cabinet and an angular travel electric five-stage throttle valve, the control cabinet is connected to the angular travel electric five-stage throttle valve, the lower limit angle of the angular travel electric five-stage throttle valve is 0°, the upper limit angle of the angular travel electric five-stage throttle valve is 180°, the rotation range of the valve core of the angular travel electric five-stage throttle valve is 0° to 180°, the angle of the valve core is 0°, corresponding to the first-stage valve core hole position, the angle of the valve core is 45°, corresponding to the second-stage valve core hole position, the angle of the valve core is 90°, corresponding to the third-stage valve core hole position, the angle of the valve core is 135°, corresponding to the fourth-stage valve core hole position, and the angle of the valve core is 180°, corresponding to the fifth-stage valve core hole position. The similarities are not repeated here.

[0060] Select the model and size of the angular stroke electric five-stage throttle valve according to your needs. The core hole diameter can be larger or smaller depending on the selected angular stroke electric five-stage throttle valve, and the core hole position will also change accordingly.

[0061] The control cabinet controls the angular travel electric five-stage throttle valve to move within a range of 180°, which is wider than the 90° range in the prior art and improves the control accuracy.

[0062] Compared with the embodiment 2, it further comprises an angle control indicator plate 3, and the similarities are not repeated here for convenient indication and easy observation and checking by the operator.

[0063] Compared with the embodiment 1, the touch screen 1-8 is replaced by the input unit and the feedback indicator light unit, the input unit includes the first to the fifth buttons, each button is electrically connected to the programmable controller 1-6 separately, the feedback indicator light unit includes the first to the fifth feedback indicator lights, and the programmable controller 1-6 is electrically connected to the control end of each feedback indicator light separately. The similarities are not repeated here.

[0064] The first button corresponds to the fully closed position button, the second button corresponds to the 4mm point button, the third button corresponds to the 6mm point button, the fourth button corresponds to the 8mm point button, the fifth button corresponds to the 10mm point button, the first feedback indicator light corresponds to the fully closed position indication, the second feedback indicator light corresponds to the 4mm in place indication, the third feedback indicator light corresponds to the 6mm in place indication, the fourth feedback indicator light corresponds to the 8mm in place indication, and the fifth feedback indicator light corresponds to the 10mm in place indication.

Claims

1. An angular travel multi-stage throttle valve control device, comprising a control cabinet and an angular travel electric multi-stage throttle valve, wherein the control cabinet is connected to the angular travel electric multi-stage throttle valve, and characterized in that: The angular stroke electric multi-stage throttle valve is an angular stroke electric five-stage throttle valve, the lower limit angle of the angular stroke electric five-stage throttle valve is 0°, the upper limit angle of the angular stroke electric five-stage throttle valve is 180°, the rotation range of the valve core of the angular stroke electric five-stage throttle valve is 0°~180°, when the angle of the valve core is 0°, it corresponds to the first-stage valve core hole position, when the angle of the valve core is 45°, it corresponds to the second-stage valve core hole position, when the angle of the valve core is 90°, it corresponds to the third-stage valve core hole position, when the angle of the valve core is 135°, it corresponds to the fourth-stage valve core hole position, and when the angle of the valve core is 180°, it corresponds to the fifth-stage valve core hole position.

2. The angular travel multi-stage throttle valve control device according to claim 1, characterized in that: The first-stage valve core hole position is the fully closed position, the second-stage valve core hole position is the valve core Φ4mm hole position, the third-stage valve core hole position is the valve core Φ6mm hole position, the fourth-stage valve core hole position is the valve core Φ8mm hole position, and the fifth-stage valve core hole position is the valve core Φ10mm hole position.

3. The angular travel multi-stage throttle valve control device according to claim 1, characterized in that: The angular stroke electric five-stage throttle valve comprises an electric drive (2-1), a gear box (2-2) and an angular stroke throttle valve (2-3) which are connected in sequence; the angular stroke throttle valve (2-3) comprises an angular stroke throttle valve body, a valve core, a high-pressure fluid inlet (2-4) fixedly connected to one end of the angular stroke throttle valve body, and a high-pressure fluid outlet (2-5) fixedly connected to one end of the angular stroke throttle valve body; the valve core is rotatably connected to the angular stroke throttle valve body; the lower part of the valve core is located inside the angular stroke throttle valve body; the upper part of the valve core is located outside the angular stroke throttle valve body; the control cabinet is electrically connected to the electric drive (2-1); the electric drive (2-1) is electrically connected to the gear box (2-2); the electric drive (2-1) and the gear box (2-2) are fixed together; the gear box (2-2) is drivingly connected to the upper part of the valve core of the angular stroke throttle valve (2-3).

4. The angular travel multi-stage throttle valve control device according to claim 3, characterized in that: The control cabinet comprises a cabinet body, a cabinet door rotatably connected to the cabinet body, a power switch (1-2) fixed on the cabinet door, a power indicator light (1-3) and a control unit, a main power explosion-proof plug (1-11) fixed on the cabinet body, a driver power explosion-proof plug (1-12) and a driver control explosion-proof plug (1-14), a safety circuit breaker (1-4) fixed inside the cabinet body, a power supply (1-5), a programmable controller (1-6), an analog-to-digital conversion module (1-7), and a TCP communication line (1-11). 1-9) and explosion-proof isolation safety barrier (1-10), main power cable (1-1), drive power cable (1-13) and drive control cable (1-15), the interior of the cabinet is exposed when the cabinet door is opened, and the cabinet is closed when the cabinet door is closed; the main power cable (1-1) is electrically connected to the power switch (1-2) of the control cabinet through the main power explosion-proof plug (1-11), the power switch (1-2), the safety circuit breaker (1-4), the power supply (1-5) and the programmable controller (1-6) The power switch (1-2) is electrically connected to the power indicator light (1-3), the electric drive (2-1) is electrically connected to the safety circuit breaker (1-4) via the drive power cable (1-13) and the drive power explosion-proof plug (1-12), the electric drive (2-1) is electrically connected to the gear box (2-2), the programmable controller (1-6) is electrically connected to the analog-to-digital conversion module (1-7) and communicates bidirectionally, and the programmable controller (1-6) is electrically connected to the analog-to-digital conversion module (1-7) via the TCP communication line (1-9). The control unit is electrically connected and bidirectionally communicates, the analog-to-digital conversion module (1-7) is electrically connected to the control end of the electric drive (2-1) in sequence via the explosion-proof isolation safety barrier (1-10), the driver control explosion-proof plug (1-14) and the driver control cable (1-15), and the feedback end of the electric drive (2-1) is electrically connected to the analog-to-digital conversion module (1-7) in sequence via the driver control cable (1-15), the driver control explosion-proof plug (1-14) and the explosion-proof isolation safety barrier (1-10).

5. The angular travel multi-stage throttle valve control device according to claim 4, characterized in that: The control unit is a touch screen (1-8), and five touch control areas are arranged on the touch screen (1-8), namely, a fully closed position button, a 4mm dot position button, a 6mm dot position button, an 8mm dot position button, and a 10mm dot position button; and five feedback display areas are arranged on the touch screen (1-8), namely, a fully closed position indication, a 4mm in-place indication, a 6mm in-place indication, an 8mm in-place indication, and a 10mm in-place indication.

6. The angular travel multi-stage throttle valve control device according to claim 3, characterized in that: The invention also comprises an angle control indicator plate (3), wherein the angle control indicator plate (3) is located on the upper part of the gear box (2-2), the angle control indicator plate (3) comprises a central drive shaft (3-5) and an angle indicating parameter (3-4) fixed on the central drive shaft (3-5), the valve core passes through the top of the gear box (2-2) and is fixedly connected to the central drive shaft (3-5), the angle indicating parameter (3-4) is a logo character, and the angle indicating parameter (3-4) comprises 0°, 45°, 90°, 135° and 180°.

7. The angular travel multi-stage throttle valve control device according to claim 4, characterized in that: The control cabinet further comprises a control cabinet base (1-16), and the cabinet body is fixedly connected to the control cabinet base (1-16).

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