Energy island device active damping device

Abstract

The application discloses an energy island equipment active damping device, which comprises a support shell and an internal work platform, and a plurality of hydraulic oil pipes are arranged in the support shell; an oil tank is connected with each hydraulic oil pipe through a plurality of hydraulic pumps; the hydraulic pumps are electrically connected with a total controller; a plurality of first damping modules are arranged on the work platform in a uniform manner along the circumference of the work platform, the first ends of the first damping modules are connected with the side of the work platform, and the second ends of the first damping modules are connected with the support shell in a sliding mode; the first damping module comprises a first hydraulic cylinder, and the rodless cavity of the first hydraulic cylinder is communicated with the corresponding hydraulic oil pipe; a plurality of second damping modules are arranged on the second end face of the work platform in a uniform manner, the first ends of the second damping modules are connected with the second end face of the work platform, and the second ends of the second damping modules are connected with the ground; the second damping module comprises a second hydraulic cylinder, and the rodless cavity of the second hydraulic cylinder is communicated with the corresponding hydraulic oil pipe. The energy island is actively damped by supplying or absorbing oil to or from the corresponding first or second damping module, and the offset caused by vibration is offset by reverse displacement.

Description

Technical Field

[0001] This invention belongs to the field of marine engineering technology, specifically relating to an active vibration damping device for equipment on an energy island. Background Technology

[0002] With the increasing global demand for clean energy, offshore energy development has become an important direction. Energy islands, as integrated offshore energy centers, typically house various devices on their platform structures, including power generation equipment (such as wind turbines), energy storage systems, power conversion modules, and living and support facilities. These devices and platforms operate in a complex marine environment, subjected not only to continuous environmental loads such as wind, waves, and currents, but also to extreme sea conditions, seismic activity, and periodic excitations from the equipment's own operation (such as large rotating machinery). These dynamic loads can easily cause overall vibration of the platform structure and severe localized swaying of the upper equipment, leading to accelerated structural fatigue damage, loosening of connections, decreased equipment precision, and even functional failure, seriously threatening the overall safety, operational stability, and service life of the energy island.

[0003] The vibration damping device for energy islands can effectively reduce vibrations caused by waves, thereby reducing loss of life and property and effectively protecting the equipment and platform structure of energy islands.

[0004] Currently, most passive vibration control systems for offshore platforms use dynamic vibration absorbers, primarily consisting of two types: tuned mass dampers (TMDs) and tuned liquid dampers (TLDs). There is a lack of active vibration reduction devices.

[0005] While TMD (Transmission Modulation Device) offers an option for platform vibration reduction, its performance has limitations. Its vibration reduction effect is constrained by a narrow excitation frequency band. When the building structure itself experiences losses, its natural frequencies change. In this case, the TMD loses its coordination with structural vibrations, and its vibration reduction capability is significantly reduced under external loads. Therefore, an active vibration reduction device is needed to reduce the occurrence of these natural frequencies. Summary of the Invention

[0006] To address the aforementioned problems, this invention proposes an active vibration damping device for equipment on an energy island. By supplying or absorbing oil to the corresponding first / second vibration damping modules, the reverse displacement offsets the offset caused by vibration, thereby achieving a vibration damping effect.

[0007] To achieve the above-mentioned technical objectives, the present invention is implemented through the following technical solution:

[0008] This invention provides an active vibration damping device for equipment on an energy island, comprising:

[0009] Support shell;

[0010] The working platform is installed inside the support shell. The first end face is used to support the equipment on the energy island, and several hydraulic oil pipes are installed inside it.

[0011] The oil storage tank is connected to various hydraulic oil pipes via several hydraulic pumps; the hydraulic pumps are electrically connected to the main controller, which is used to collect the status information of the energy island and generate control commands for each hydraulic pump based on the status information of the energy island, so as to control each hydraulic pump to switch the oil delivery direction.

[0012] Several first vibration damping modules are evenly arranged along the circumference of the working platform. The first end of the first vibration damping module is connected to the side of the working platform, and its second end is slidably connected to the support shell. The first vibration damping module includes a first hydraulic cylinder, and the rodless chamber of the first hydraulic cylinder is connected to the corresponding hydraulic oil pipe.

[0013] Several second vibration damping modules are evenly arranged on the second end face of the working platform. The first end of the second vibration damping module is connected to the second end face of the working platform, and its second end is used to connect to the ground. The second vibration damping module includes a second hydraulic cylinder, and the rodless chamber of the second hydraulic cylinder is connected to the corresponding hydraulic oil pipe.

[0014] In the above technical solution, when the energy island vibrates and tilts, under the command of the main controller, the hydraulic pump is controlled to supply or draw oil into the rodless chamber of the corresponding first or second vibration damping module, pushing the piston rod of the first or second vibration damping module to extend or retract, thereby making the energy island return to the correct position. The offset caused by lateral or vertical vibration is offset by reverse displacement compensation, thus achieving adaptive active suppression of vibrations of different frequencies and amplitudes.

[0015] Optionally, the active vibration damping device for the equipment on the energy island further includes a ball joint module, which includes a lower ball joint seat and an upper ball joint seat connected by an arc surface. The upper ball joint seat is connected to the second end of the second vibration damping module, and the lower ball joint seat is used to connect to the ground.

[0016] The above technical solution uses a ball joint module consisting of a lower ball joint and an upper ball joint connected by arc surfaces to support the first vibration damping module, the second vibration damping module, and the working platform. Since the lower ball joint and the upper ball joint can rotate relative to each other, they can realize the vibration damping and buffering function of the energy island, providing the basic conditions for the automatic leveling working platform.

[0017] Optionally, the upper ball joint seat is provided with a receiving cavity, which is a semi-enclosed structure and is used to install the lower ball joint seat;

[0018] The ball joint lower seat includes a worktable and a base. The top of the worktable is provided with a flange, and the top surface of the worktable is connected to the upper inner wall of the receiving cavity by means of an arc surface fit.

[0019] The sidewall of the receiving cavity extends below the flange on the worktable and is connected to the bottom end of the flange on the worktable by a second spring.

[0020] The ball joint module of the present invention has a special structure and shape design. The semi-enclosed structure of the upper seat of the ball joint plays a certain role in limiting the rotation range of the ball joint module. It can generate a certain resistance in the early stage of the work platform tilting, so as to avoid excessive tilting of the work platform. In addition, a second spring is provided to provide preload force, which improves the return efficiency of the ball joint module while reducing vibration and absorbing energy, thereby improving the return efficiency of the work platform.

[0021] Optionally, the hydraulic oil pipe includes an oil supply line and an oil return line;

[0022] The oil pipeline is equipped with a check valve to control the oil supply to the first or second vibration damping module.

[0023] The return oil pipeline is connected to the first or second vibration damping module via an electrically controlled shut-off valve to recover oil; the control terminal of the electrically controlled shut-off valve is electrically connected to the main controller.

[0024] The above technical solution divides the hydraulic oil pipe into two branches, namely the oil supply line and the oil return line. When it is necessary to supply oil to the first or second vibration damping module, the electrically controlled shut-off valve is closed. When it is necessary to recover oil from the first or second vibration damping module, the electrically controlled shut-off valve is opened. This separates the oil supply and return lines into two independent oil pipes, which can improve the oil transmission rate and facilitate subsequent maintenance.

[0025] Optionally, the active vibration damping device for the equipment on the energy island further includes a mechanical sensor installed on the first vibration damping module and the second vibration damping module. The mechanical sensor is electrically connected to the main controller and is used to send energy island status information to the main controller.

[0026] The above technical solution uses mechanical sensors to collect vibration loads and force signals in real time, providing a basis for the main controller to generate instructions.

[0027] Optionally, the active vibration damping device for the equipment on the energy island also includes a displacement sensor mounted on the working platform. The mechanical sensor is electrically connected to the main controller and is used to send energy island status information to the main controller.

[0028] The above technical solution enables the displacement sensor to monitor the lateral and longitudinal displacement of the platform and to monitor the action of the vibration reduction module, thereby achieving real-time adjustment and precise positioning of the vibration response.

[0029] Optionally, the active vibration damping device for the equipment on the energy island also includes a fixing plate disposed at the bottom of the support shell and the ball joint module, for connecting the support shell and the ball joint module to the ground.

[0030] Optionally, the active vibration damping device for the equipment on the energy island further includes a first spring mounted on the piston rod of the first or second hydraulic cylinder.

[0031] The above technical solution uses a first spring mounted on the piston rod of the first or second hydraulic cylinder to absorb the vibration of the energy island and the mechanical vibration of the active vibration damping device of the equipment on the energy island, thereby achieving the effect of vibration reduction and energy absorption.

[0032] Optionally, the second end of the first vibration damping module is connected to the slider, and the support shell is provided with a plurality of sliding grooves along its inner wall circumferentially, and the slider cooperates with the sliding grooves on the support shell.

[0033] The above technical solution uses a slider and a groove to enable the work platform to move along the groove on the inner wall of the support shell. This provides support for the work platform while achieving vibration reduction and adjustment, reducing friction and improving the service life of each component.

[0034] The second end of the first vibration damping module is connected to the slider via a rotating rod, which is used to realize the relative rotation between the second end and the slider.

[0035] The above technical solution, in order to avoid the second end of the first vibration damping module rotating relative to the slider when the working platform tilts or returns to center, connects the second end of the first vibration damping module (1) and the slider through a rotating rod, which further improves the service life of each component and avoids component fatigue or wear.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0037] When the energy island vibrates and tilts, the present invention controls the hydraulic pump to supply or draw oil into the rodless chamber of the corresponding first or second hydraulic cylinder under the command of the main controller, pushing the piston rod of the first or second hydraulic cylinder to extend or retract, thereby making the energy island return to the correct position. By compensating for and offsetting the offset caused by lateral or vertical vibration through reverse displacement, the invention achieves adaptive active suppression of vibrations of different frequencies and amplitudes.

[0038] Furthermore, a ball joint module with a special shape is set in the second vibration reduction module, which allows the working platform to deflect and move in multiple degrees of freedom within a certain range. While ensuring the overall rigidity, it releases additional bending moment and prevents structural fatigue or damage caused by stress concentration. A second spring is added to the ball joint module to strengthen the preload between the upper and lower ball joint seats in the ball joint module, providing auxiliary force for ball joint reset and anti-tilting.

[0039] Furthermore, a first spring is fitted onto the piston rod of the first or second hydraulic cylinder, which has a buffering effect to absorb vibration and impact, thereby enhancing the vibration reduction effect. Attached Figure Description

[0040] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0041] Figure 1 This is a schematic diagram of the overall structure of an active vibration damping device for equipment on an energy island according to the present invention.

[0042] Figure 2 This is a top view schematic diagram of the overall structure of an active vibration damping device for equipment on an energy island according to the present invention;

[0043] Figure 3 This is a front cross-sectional schematic diagram of an active vibration damping device for equipment on an energy island according to the present invention;

[0044] Figure 4 This is a schematic diagram of the hydraulic oil flow control of an active vibration damping device for equipment on an energy island according to the present invention;

[0045] Figure 5 This is a schematic diagram of the structure of the second vibration damping module and the ball joint module of the active vibration damping device for equipment on an energy island according to the present invention;

[0046] Figure 6 This is a schematic diagram of the ball joint module of an active vibration damping device for equipment on an energy island according to the present invention;

[0047] In the diagram: 1-First vibration damping module, 2-Support shell, 3-Rotating rod, 4-Second vibration damping module, 5-Fixing plate, 6-Spherical hinge module, 7-Displacement sensor, 8-Hydraulic oil pipe, 9-Slide groove, 101-Lower ball hinge seat, 102-Upper ball hinge seat, 103-First spring, 104-Second spring, 10-One-way valve, 11-Electrically controlled shut-off valve. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of protection of the invention.

[0049] In the description of this invention patent, it should be noted that the terms "upper", "lower", "left", "right", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this invention patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention patent.

[0050] In the description of this invention patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] The application principle of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] Example 1

[0053] like Figure 1-3 As shown, this embodiment provides an active vibration damping device for equipment on an energy island, including:

[0054] Support shell 2;

[0055] The working platform is installed inside the support shell 2. The first end face is used to support the equipment on the energy island. Several hydraulic oil pipes 8 are installed inside it.

[0056] The oil storage tank is connected to each hydraulic oil pipe 8 via several hydraulic pumps; the hydraulic pumps are electrically connected to the main controller, which is used to collect the energy island status information and generate control commands for each hydraulic pump based on the energy island status information, so as to control each hydraulic pump to switch the oil delivery direction.

[0057] A plurality of first vibration damping modules 1 are evenly arranged along the circumference of the working platform. The first end of the first vibration damping module 1 is connected to the side of the working platform, and its second end is slidably connected to the support shell 2. The first vibration damping module 1 includes a first hydraulic cylinder, and the rodless chamber of the first hydraulic cylinder is connected to the corresponding hydraulic oil pipe 8.

[0058] Several second vibration damping modules 4 are evenly arranged on the second end face of the working platform. The first end of the second vibration damping module 4 is connected to the second end face of the working platform, and its second end is used to connect to the ground. The second vibration damping module 4 includes a second hydraulic cylinder, and the rodless chamber of the second hydraulic cylinder is connected to the corresponding hydraulic oil pipe 8.

[0059] In the above technical solution, when the energy island vibrates and tilts, under the command of the main controller, the hydraulic pump is controlled to supply or draw oil into the rodless chamber of the corresponding first or second vibration damping module, which pushes the piston rod of the first or second vibration damping module to extend or retract, thereby making the energy island return to the correct position. The offset caused by lateral or vertical vibration is offset by reverse displacement compensation, thus realizing adaptive active suppression of vibrations of different frequencies and amplitudes.

[0060] In one specific embodiment of this example, the active vibration damping device for the equipment on the energy island further includes a ball joint module 6. The ball joint module 6 includes a lower ball joint seat 101 and an upper ball joint seat 102 connected by an arc surface. The upper ball joint seat 102 is connected to the second end of the second vibration damping module 4, and the lower ball joint seat 101 is used to connect to the ground.

[0061] The above technical solution uses a ball joint module 6, which consists of a lower ball joint 101 and an upper ball joint 102 connected by an arc surface, to support the first vibration damping module, the second vibration damping module, and the working platform. Since the lower ball joint 101 and the upper ball joint 102 can rotate relative to each other, they can realize the vibration damping and buffering function of the energy island, providing the basic conditions for the automatic leveling working platform.

[0062] like Figure 3-4 As shown, in one specific embodiment of this example, the hydraulic oil pipe 8 includes an oil supply pipe and an oil return pipe;

[0063] The oil pipeline is equipped with a one-way valve 10, which is used to control the oil pipeline to deliver oil to the first vibration damping module 1 or the second vibration damping module 4.

[0064] The return oil pipeline is connected to the first vibration damping module 1 or the second vibration damping module 4 via an electrically controlled shut-off valve 11 to recover oil; the control terminal of the electrically controlled shut-off valve 11 is electrically connected to the main controller.

[0065] The above technical solution divides the hydraulic oil pipe into two branches, namely the oil supply line and the oil return line. When it is necessary to supply oil to the first vibration damping module 1 or the second vibration damping module 4, the electrically controlled shut-off valve 11 is closed. When it is necessary to recover oil from the first vibration damping module 1 or the second vibration damping module 4, the electrically controlled shut-off valve is opened. The oil supply and return lines are divided into two independent oil pipes, which can improve the oil transmission rate and facilitate subsequent maintenance work.

[0066] In one specific embodiment of this example, the active vibration damping device for the equipment on the energy island further includes a mechanical sensor installed on the first vibration damping module 1 and the second vibration damping module 4. The mechanical sensor is electrically connected to the main controller and is used to send energy island status information to the main controller.

[0067] The above technical solution uses mechanical sensors to collect vibration loads and force signals in real time, providing a basis for the main controller to generate instructions.

[0068] In one specific embodiment of this example, the active vibration damping device for the equipment on the energy island further includes a displacement sensor mounted on the working platform. The mechanical sensor is electrically connected to the main controller and is used to send energy island status information to the main controller.

[0069] The above technical solution enables the displacement sensor to monitor the lateral and longitudinal displacement of the platform and to monitor the action of the vibration reduction module, thereby achieving real-time adjustment and precise positioning of the vibration response.

[0070] In one specific embodiment of this example, the active vibration damping device for the equipment on the energy island further includes a fixing plate 5 disposed at the bottom of the support shell 2 and the ball joint module 6, for connecting the support shell 2 and the ball joint module 6 to the ground.

[0071] The above technical solution sets up a fixed plate 5 to provide constraint and support for the active vibration damping device of the equipment on the entire energy island.

[0072] In one specific embodiment of this example, the active vibration damping device for the equipment on the energy island further includes a first spring 103 sleeved on the piston rod of the first hydraulic cylinder or the second hydraulic cylinder.

[0073] The above technical solution uses a first spring mounted on the piston rod of the first or second hydraulic cylinder to absorb the vibration of the energy island and the mechanical vibration of the active vibration damping device of the equipment on the energy island, thereby achieving the effect of vibration reduction and energy absorption.

[0074] In one specific embodiment of this example, the second end of the first vibration damping module 1 is connected to the slider, and the support shell 2 is provided with a plurality of sliding grooves 9 along its inner wall circumferentially, and the slider cooperates with the sliding grooves 9 on the support shell 2.

[0075] The above technical solution uses a slider and a groove to enable the work platform to move along the groove on the inner wall of the support shell. This provides support for the work platform while achieving vibration reduction and adjustment, reducing friction and improving the service life of each component.

[0076] In one specific embodiment of this example, the second end of the first vibration damping module 1 is connected to the slider via a rotating rod 3, which is used to realize the relative rotation between the second end of the first vibration damping module 1 and the slider.

[0077] The above technical solution, in order to prevent the second end of the first vibration damping module 1 from rotating relative to the slider when the working platform tilts or returns to center, connects the piston rod and the slider through a rotating rod, which further improves the service life of each component and avoids component fatigue or wear.

[0078] The following is combined Figures 1 to 6 The working process of an active vibration damping device for equipment on an energy island in this embodiment is described in detail:

[0079] When the energy island is subjected to external excitation and vibration causes the working platform to shift position, the displacement sensor 77 collects the displacement in real time and converts it into a displacement electrical signal, which is then connected to the main controller.

[0080] Under external vibration, the mechanical sensors deployed on the first vibration damping module 1 and the second vibration damping module 4 synchronously convert the mechanical parameters corresponding to the vibration load into mechanical electrical signals. The displacement electrical signals and mechanical electrical signals are then fed into the main controller to complete signal coupling. Both the displacement electrical signals and the mechanical electrical signals are energy island state information, and in actual operation, the mechanical sensors are generally located at the end of the piston rod.

[0081] The main controller's built-in control algorithm processes the received coupling signals to calculate the target compensation displacement corresponding to the first vibration damping module 1 or the second vibration damping module 4, and further calculates the hydraulic oil inlet and outlet control parameters based on the target displacement. It should be noted that the built-in control algorithm of the main controller is not itself an improvement of this invention, nor is it the only necessary means to achieve this invention. Those skilled in the art can use any conventional algorithm that can achieve the same function as a substitute.

[0082] When a single first vibration damping module 1 or second vibration damping module 4 performs the extension drive condition, the corresponding hydraulic pump is controlled to be in the oil supply state, the electronically controlled shut-off valve of the return oil pipeline is in the closed state, and the check valve configured in the oil supply pipeline blocks the hydraulic oil from flowing back from the output end. The hydraulic piston rod is driven to extend by the hydraulic oil pumped out by the hydraulic pump to achieve vibration damping displacement compensation.

[0083] When a single first damping module 1 or second damping module 4 needs to be reset and retracted, the electronically controlled shut-off valve of the return oil line is opened, controlling the hydraulic pump to switch to oil suction state. The hydraulic oil in the rodless chamber of the first damping module 1 or second damping module 4 flows back to the oil storage tank through the return oil line, and the piston rod is retracted to the specified extension amount by means of the hydraulic oil return.

[0084] This invention uses displacement sensor 77 to monitor the lateral and vertical displacement and vibration frequency of the equipment carrying platform in real time, and transmits the monitoring signal to the main controller in real time. Based on the received vibration data, the optimal damping force and restoring force required to counteract the current vibration are calculated in real time, and then instructions are sent to each of the first vibration damping modules 1 or the second vibration damping module 4 to precisely control the flow direction and flow rate of hydraulic oil.

[0085] For example, in actual use, when the working platform vibrates laterally to the left, the oil pressure of the first vibration damping module 1 on the right can be increased to actively generate a rightward reverse thrust, forcing the working platform to return to the correct position. Correspondingly, the second vibration damping module 4 also needs to react to make the working platform return to the correct position.

[0086] Example 2

[0087] like Figure 5-6 As shown, based on Embodiment 1, the difference between this embodiment and Embodiment 1 is that: the upper ball joint seat 102 is provided with a receiving cavity, which is a semi-enclosed structure and is used to install the lower ball joint seat 101;

[0088] The ball joint lower seat 101 includes a worktable and a base. The top of the worktable is provided with a flange, and the top surface of the worktable is connected to the upper inner wall of the receiving cavity by means of an arc surface fit.

[0089] The sidewall of the receiving cavity extends below the bottom end of the flange on the worktable and is connected to the bottom end of the flange on the worktable by a second spring 104.

[0090] The ball joint module of the present invention has a special structure and shape design. The semi-enclosed structure of the upper ball joint 102 plays a certain role in limiting the rotation range of the ball joint module. It can generate a certain resistance in the early stage of the work platform tilting, so as to avoid excessive tilting of the work platform. In addition, a second spring is provided to provide preload force, which improves the return efficiency of the ball joint module while reducing vibration and absorbing energy, thereby improving the return efficiency of the work platform.

[0091] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An active vibration damping device for equipment on an energy island, characterized in that, include: Support shell (2); The working platform is installed inside the support shell (2). The first end face is used to support the equipment on the energy island. Several hydraulic oil pipes (8) are installed inside it. The oil storage tank is connected to each hydraulic oil pipe (8) by several hydraulic pumps; the hydraulic pumps are electrically connected to the main controller, which is used to collect the energy island status information and generate control commands for each hydraulic pump based on the energy island status information, so as to control each hydraulic pump to switch the oil delivery direction; Several first vibration damping modules (1) are evenly arranged along the circumference of the working platform. The first end of the first vibration damping module (1) is connected to the side of the working platform, and its second end is slidably connected to the support shell (2). The first vibration damping module (1) includes a first hydraulic cylinder, and the rodless chamber of the first hydraulic cylinder is connected to the corresponding hydraulic oil pipe (8). Several second vibration damping modules (4) are set on the second end face of the working platform. The first end of the second vibration damping module (4) is connected to the second end face of the working platform, and its second end is used to connect to the ground. The second vibration damping module (4) includes a second hydraulic cylinder, and the rodless chamber of the second hydraulic cylinder is connected to the corresponding hydraulic oil pipe (8).

2. The active vibration damping device for equipment on the energy island according to claim 1, characterized in that, It also includes a ball joint module (6), which includes a lower ball joint seat (101) and an upper ball joint seat (102) connected by an arc surface. The upper ball joint seat (102) is connected to the second end of the second vibration damping module (4), and the lower ball joint seat (101) is used to connect to the ground.

3. The active vibration damping device for equipment on the energy island according to claim 2, characterized in that, The upper ball joint seat (102) is provided with a receiving cavity, which is a semi-enclosed structure and is used to install the lower ball joint seat (101). The ball joint lower seat (101) includes a worktable and a base. The top of the worktable is provided with a flange, and the top surface of the worktable is engaged with the upper inner wall of the receiving cavity by means of an arc surface. The sidewall of the receiving cavity extends below the flange on the worktable and is connected to the bottom end of the flange on the worktable by a second spring (104).

4. The active vibration damping device for equipment on the energy island according to claim 1, characterized in that, The hydraulic oil pipe (8) includes an oil supply line and an oil return line; The oil pipeline is equipped with a one-way valve (10) for controlling the oil pipeline to deliver oil to the first vibration damping module (1) or the second vibration damping module (4); The return oil pipeline is connected to the first damping module (1) or the second damping module (4) through the electrically controlled shut-off valve (11) to recover oil; the control end of the electrically controlled shut-off valve (11) is electrically connected to the main controller.

5. The active vibration damping device for equipment on the energy island according to claim 1, characterized in that, The active vibration damping device for the equipment on the energy island also includes a mechanical sensor installed on the first vibration damping module (1) and the second vibration damping module (4). The mechanical sensor is electrically connected to the main controller and is used to send energy island status information to the main controller.

6. The active vibration damping device for equipment on the energy island according to claim 5, characterized in that, The active vibration damping device for the equipment on the energy island also includes a displacement sensor installed on the working platform. The mechanical sensor is electrically connected to the main controller and is used to send energy island status information to the main controller.

7. The active vibration damping device for equipment on the energy island according to claim 1, characterized in that, The active vibration damping device for the equipment on the energy island also includes a fixing plate (5) set at the bottom of the support shell (2) and the ball joint module (6) for connecting the support shell (2) and the ball joint module (6) to the ground.

8. The active vibration damping device for equipment on the energy island according to claim 1, characterized in that, The active vibration damping device for the equipment on the energy island also includes: a first spring (103) sleeved on the piston rod of the first hydraulic cylinder or the second hydraulic cylinder.

9. The active vibration damping device for equipment on the energy island according to claim 1, characterized in that, The second end of the first vibration damping module (1) is connected to the slider. The support shell (2) is provided with several grooves (9) along its inner wall circumferentially. The slider cooperates with the grooves (9) on the support shell (2).

10. The active vibration damping device for equipment on the energy island according to claim 9, characterized in that, The second end of the first vibration damping module (1) is connected to the slider via a rotating rod (3) to achieve relative rotation between the second end of the first vibration damping module (1) and the slider.

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