A split-type electro-hydraulic actuator

Abstract

A split-type electro-hydraulic actuator, relating to the field of electro-hydraulic actuator technology, comprises a ground support and a valve support. A mounting bracket is connected to one side of the upper surface of the ground support, and an explosion-proof control box is connected to the mounting bracket. The explosion-proof control box has a display screen. A connecting bracket is connected to one side of the ground support, and an oil tank and an energy storage module are connected to the connecting bracket. The beneficial effects of this technical solution are: by distributing the weight of the equipment through the ground support and valve support, the valve load is reduced by approximately 70%, significantly improving the structural stability of the pipeline system under natural disasters such as strong winds. It is particularly suitable for tank-root valve pipeline conditions. Simultaneously, the modular layout design greatly enhances the equipment's environmental adaptability, and by flexibly adjusting the installation position of integrated components, interference from complex working conditions can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of electro-hydraulic actuator technology, and in particular to a split-type switch electro-hydraulic actuator. Background Technology

[0002] An on / off type electro-hydraulic actuator is an actuator with two on / off positions, consisting of two main parts: the actuator and the control components. It is suitable for two-position valves that require emergency shut-off (ESD) functionality.

[0003] In existing technologies, electro-hydraulic actuators generally adopt an integrated structural design, which integrates mechanical, hydraulic, and electronic components into a single unit through high integration, significantly improving space utilization efficiency and achieving a compact layout. This structural approach, with its high integration characteristics, exhibits technical advantages such as convenient installation under normal operating conditions.

[0004] However, in extreme weather conditions with frequent typhoons, this structural design exposes significant safety hazards. In particular, the integrated electro-hydraulic actuator installed at the base valve of the oil tank, due to the large total weight of the equipment and valve, will exert additional loads on the oil tank's inlet and outlet pipelines under strong wind loads, seriously threatening the safety of the pipeline structure and the stability of media transportation. Furthermore, due to structural limitations, the operating unit of the high-specification integrated electro-hydraulic actuator is usually located high above the ground, making it difficult for operators to perform real-time status monitoring and parameter adjustments, severely impacting the efficiency of visualized management of equipment operation and emergency response. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of current electro-hydraulic actuators, which are all integral units and cause excessive load on valves during use, and to propose a split-type electro-hydraulic actuator.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A split-type electro-hydraulic actuator includes a ground bracket and a valve bracket. A mounting bracket is connected to one side of the upper surface of the ground bracket, and an explosion-proof control box is connected to the mounting bracket. The explosion-proof control box is equipped with a display screen. A connecting bracket is connected to one side of the ground bracket, and an oil tank and an energy storage module are connected to the connecting bracket.

[0008] An actuator cylinder is connected to the upper surface of the valve support. The actuator cylinder is connected to the energy storage module through a pipe. The piston rod of the actuator cylinder passes through the upper surface of the valve support and extends into the valve support. The piston rod of the actuator cylinder is connected to a feedback rod through a coupling. Two limit switches are connected to the valve support. The feedback rod is set to correspond to the limit switches.

[0009] The switch-type electro-hydraulic actuator is divided into an actuator and a control mechanism. The control mechanism is mounted on a ground support and on a valve support. This effectively avoids interference from complex working conditions on equipment operation, reduces the overall load on the valve, protects the valve, and significantly improves the structural stability of the pipeline system under natural disasters such as strong winds. It is especially suitable for tank root valve pipeline conditions.

[0010] Preferably, the valve support is provided with a guide plate, and the guide plate is provided with an opening along the height of the valve support, through which the feedback rod extends to one side of the valve support.

[0011] Preferably, protective brushes are provided on the two side walls of the opening.

[0012] The protective brush is designed to be dustproof and waterproof.

[0013] Preferably, a power module is connected to the side of the ground support, a hydraulic control module is connected to the power module, and the power module is connected to the energy storage module.

[0014] The power module pressurizes the energy storage module, ensuring it remains under high pressure. The hydraulic control module controls the hydraulic circuit and integrates an ESD module for rapid start-up and shutdown.

[0015] Preferably, a protective cover is provided on the valve support, and one of the protective covers is provided with a valve position indicator plate.

[0016] Preferably, multiple windproof straps are connected to both sides of the valve bracket from top to bottom, with the windproof straps located on one side of the protective cover.

[0017] Preferably, a pressure plate bracket is installed on the inner side wall of the valve bracket, and a sealing strip is installed between the pressure plate bracket and the inner side wall of the valve bracket.

[0018] Preferably, a drain hole is provided at the bottom of the valve bracket.

[0019] Compared with the prior art, the beneficial effects of this utility model are: by setting up ground supports and valve supports, the entire structure is dispersed, the weight of the equipment is distributed, the load on the valve is reduced by about 70%, and the structural stability of the pipeline system under natural disasters such as strong winds is significantly improved. It is especially suitable for tank root valve pipeline conditions. At the same time, the modular layout design greatly enhances the environmental adaptability of the equipment. By flexibly adjusting the installation position of integrated components, the interference of complex working conditions on equipment operation can be effectively avoided. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view of the ground support in a specific embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the ground support structure in a specific embodiment of this utility model.

[0023] Figure 3 This is a schematic diagram of the valve support structure in a specific embodiment of this utility model.

[0024] Figure 4 This is a front view of the valve bracket in a specific embodiment of this utility model.

[0025] Figure 5 This is a cross-sectional view of the inside of the valve bracket in a specific embodiment of this utility model.

[0026] Figure 6 for Figure 5 Enlarged view of point A.

[0027] In the diagram: 1. Explosion-proof control box; 2. Energy storage module; 3. Oil tank; 4. Power module; 5. Hydraulic control module; 6. Ground support; 7. Valve support; 8. Actuating cylinder; 9. Limit switch; 10. Coupling; 11. Displacement sensor interface; 12. Protective cover; 13. Oil port; 14. Lifting mechanism; 15. Mounting bracket; 16. Feedback rod; 17. Guide plate; 18. Windproof strap; 19. Drain hole; 20. Connecting frame; 21. Pressure plate bracket; 22. Sealing strip. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] Reference Figures 1-6A split-type electro-hydraulic actuator includes a ground support 6 and a valve support 7. The upper surfaces of both the ground support 6 and the valve support 7 are equipped with a hoisting mechanism 14 for easy equipment lifting. A control component is mounted on the ground support 6, and an actuation component is mounted on the valve support 7. An actuation cylinder 8 is mounted on the actuation component. The bottom of the valve support 7 is mounted on a valve flange, and the valve stem is connected to the actuation cylinder 8 via a coupling. A mounting bracket 15 is connected to one side of the upper surface of the ground support 6, and an explosion-proof control box 1 is connected to the mounting bracket 15. The explosion-proof control box 1 integrates a control system and has a display screen. The independently deployed control mechanism allows for optimized installation based on site conditions, keeping the operating interface height within the optimal operating range of 1.5-2 meters. This enables operators to obtain real-time equipment operating parameters, significantly improving the system's visual management level. The display screen facilitates operation. A connecting frame 20 is connected to one side of the ground support 6, and an oil tank 3 and an energy storage module 2 are connected to the connecting frame 20. The connecting frame 20 connects to the oil tank 3 and the energy storage module 2. Module 2 provides support, and the oil tank 3 and the top of the energy storage module 2 are connected to the ground support 6 by clamps. The sides of the ground support 6 are connected to the power module 4, and the power module 4 is connected to the hydraulic control module 5. The power module 4 is connected to the energy storage module 2 and pressurizes the energy storage module 2 to keep it in a high-pressure working state. The hydraulic control module 5 realizes hydraulic circuit control and integrates an ESD module to realize rapid opening and closing. The upper surface of the valve support 7 is connected to the actuator cylinder 8. The actuator cylinder 8 is provided with a displacement sensor interface 11 above it. The actuator cylinder 8 is connected to the energy storage module 2 through a pipe. The piston rod of the actuator cylinder 8 passes through the upper surface of the valve support 7 and extends into the valve support 7. The piston rod of the actuator cylinder 8 is connected to the feedback rod 16 through the coupling 10. At the same time, the coupling 10 is connected to the valve stem 1. Two limit switches 9 are connected to the valve support 7. The feedback rod 16 is set to correspond to the limit switch 9. When the feedback rod 16 moves to a certain position, it will trigger the limit switch 9 to trigger the feedback of the corresponding valve position.

[0030] Reference Figure 3 A guide plate 17 is provided on the valve support 7. The guide plate 17 is connected to one side of the valve support 7. An opening is provided on the guide plate 17 along the height of the valve support 7. The feedback rod 16 extends through the opening to one side of the valve support 7. Protective brushes are provided on the two side walls of the opening. The protective brushes are designed for dust and water protection.

[0031] Reference Figures 3-6A protective cover 12 is installed on the valve support 7. A pressure plate bracket 21 is installed on the inner side wall of the valve support 7. A sealing strip 22 is installed between the pressure plate bracket 21 and the inner side wall of the valve support 7. The pressure plate bracket 21 and the sealing strip 22 are arranged around the protective cover 12 to improve the sealing effect and waterproof it. Except for one side of the guide plate 17, the other sides are equipped with protective covers 12. One of the protective covers 12 is equipped with a valve position indicator plate to facilitate on-site personnel to observe the valve opening and closing position. Multiple windproof straps 18 are connected to both sides of the valve support 7 from top to bottom. A drainage hole 19 is provided at the bottom of the valve support 7. The protective cover 12 reduces wind resistance in the event of strong winds and improves the wind resistance of the protective cover 12 through the windproof straps 18. The drainage hole 19 at the bottom side of the valve support 7 facilitates rainwater drainage and prevents fog from affecting the observation of the valve position.

[0032] In use, the bottom of the valve bracket 7 is installed on the valve docking flange, and the valve stem is connected to the actuator cylinder 8 through the coupling 10. After the ground bracket 6 is installed, the energy storage module 2 is connected to the oil port 13 on the actuator cylinder 8 through a pipeline. When the explosion-proof control box 1 sends a corresponding signal, the hydraulic control module 5 opens or closes the oil circuit. The high-pressure hydraulic oil in the energy storage module 2 enters the actuator cylinder 8, pushing the piston rod to move linearly. The low-pressure hydraulic oil in the actuator cylinder 8 flows into the oil tank 3 for recycling.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A split-type electro-hydraulic actuator, characterized in that: The system includes a ground support (6) and a valve support (7). A mounting bracket (15) is connected to one side of the upper surface of the ground support (6). An explosion-proof control box (1) is connected to the mounting bracket (15). A display screen is installed on the explosion-proof control box (1). A connecting bracket (20) is connected to one side of the ground support (6). An oil tank (3) and an energy storage module (2) are connected to the connecting bracket (20). An actuating cylinder (8) is connected to the upper surface of the valve support (7). The actuating cylinder (8) and the energy storage module (2) are connected by a pipe. The piston rod of the actuating cylinder (8) passes through the upper surface of the valve support (7) and extends into the valve support (7). The piston rod of the actuating cylinder (8) is connected to a feedback rod (16) through a coupling (10). Two limit switches (9) are connected to the valve support (7). The feedback rod (16) is set in correspondence with the limit switches (9).

2. The split-type electro-hydraulic actuator according to claim 1, characterized in that: A guide plate (17) is provided on the valve bracket (7), and an opening is provided on the guide plate (17) along the height of the valve bracket (7). The feedback rod (16) extends through the opening to one side of the valve bracket (7).

3. The split-type electro-hydraulic actuator according to claim 2, characterized in that: Protective brushes are installed on the two side walls of the opening.

4. The split-type electro-hydraulic actuator according to claim 1, characterized in that: The sides of the ground support (6) are connected to power modules (4), and the power modules (4) are connected to hydraulic control modules (5). The power modules (4) are connected to energy storage modules (2).

5. The split-type electro-hydraulic actuator according to claim 1, characterized in that: A protective cover (12) is provided on the valve support (7), and a valve position indicator is provided on one of the protective covers (12).

6. The split-type electro-hydraulic actuator according to claim 5, characterized in that: Multiple windproof straps (18) are connected to both sides of the valve bracket (7) from top to bottom. The windproof straps (18) are located on one side of the protective cover (12).

7. The split-type electro-hydraulic actuator according to claim 1, characterized in that: A pressure plate bracket (21) is installed on the inner side wall of the valve bracket (7), and a sealing strip (22) is installed between the pressure plate bracket (21) and the inner side wall of the valve bracket (7).

8. The split-type electro-hydraulic actuator according to claim 1, characterized in that: The bottom of the valve bracket (7) is provided with a drain hole (19).

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