164results about How to "Avoid resonance" patented technology

The invention discloses a wave energy integration device based on multi-resonance motion control, and belongs to the technical field of offshore power generation, the wave energy integration device comprises a semi-submersible platform, the semi-submersible platform comprises a plurality of buoys and a central stand column, each buoy is divided into an upper buoy and a lower buoy, the bottom of each buoy is provided with a base, and the central stand column is arranged on the base. A floating fan is arranged on the central stand column, the buoys and the central stand column are connected through a truss, a water tank is arranged in the lower buoy, a water pump is arranged at the bottom of the water tank, a guide rail is vertically arranged in the water tank, and a heaving wave energy device is arranged on the guide rail through a transmission device. By the adoption of the structure, complementary power generation of wind energy and wave energy can be achieved. Triple resonance of the liquid in the water tank, the built-in heaving wave energy device and the balancing weight is achieved, the wave energy power generation efficiency can be improved through multi-resonance motion control, meanwhile, heaving motion of the platform is reduced, and therefore the power generation stability of a draught fan and the safety of an integrated system are improved.

The invention designs a linear heave compensation device based on a double-piston double-rod type energy accumulator, which belongs to the technical field of ocean engineering equipment, adopts the double-piston double-rod type energy accumulator as a coupling device of compensation power, is provided with a plurality of functional cavities, and connects a high-pressure gas cylinder group with a passive compensation gas cavity of the double-piston double-rod type energy accumulator to form a high-pressure gas cylinder group. Therefore, a passive compensation force is provided on the piston rod of the energy accumulator; the two-way variable pump is connected with two active compensation liquid cavities of the energy accumulator, active compensation force capable of controlling the magnitude and the direction is provided on a piston rod of the energy accumulator through a closed variable pump speed control and regulation loop, the passive compensation force and the active compensation force jointly overcome the load of the energy accumulator, and the piston rod of the energy accumulator is driven to move. And finally, the compensation cylinder is indirectly driven to realize a heave compensation function. In addition, the deepwater high-pressure environment pressure acts on the end portions of the energy accumulator load pressure liquid cavity piston rod and the compensation cylinder piston rod at the same time, and the deepwater pressure compensation function is achieved through pressure interaction offset. According to the invention, a plurality of operation modes and functions such as passive compensation, active compensation and water pressure compensation are realized, operation under different working conditions such as overwater, underwater and deepwater areas can be realized, and the device has the characteristics of novel structure, compact system, integration of multiple functions, high compensation precision and the like.

The invention discloses motor control equipment and a motor control method for a sine wave filter. The motor control method comprises the following steps: compensating a current feedback vector output by a driver through a filter state compensator to obtain a motor current feedback signal; a motor current feedback signal and a given signal are synchronously input to a motor controller for operation, a motor stator voltage given vector is obtained and output to a filter state compensator for further processing, and a driver output given voltage vector is obtained and serves as a voltage signal to control the bus voltage of the sine filter. According to the method, only the direct-current bus voltage and the three-phase output current of the driver are collected, the problem of hardware compatibility does not exist, the motor is controlled to run along with the given signal through external filter state compensation, high current control response bandwidth can be achieved, resonance is avoided, and stable running of the motor is guaranteed.

The invention relates to the technical field of inspection robots, in particular to a rail type inspection robot capable of automatically adjusting clamping force, which comprises a camera and an I-shaped rail, a mounting plate is arranged below the I-shaped rail, and two walking devices are rotationally arranged on the upper side of the mounting plate; and the walking device comprises a bottom plate rotationally connected to one end of the upper side of the mounting plate, two side plates are fixed to the two sides of the bottom plate, and supporting shafts are rotationally connected to the upper ends of the two side plates in a penetrating mode. Through the guide mechanisms on the two sides of the walking device, when the walking device moves, the multiple guide wheels of the guide mechanisms on the two sides roll along the side face of the I-shaped rail, the multiple guide wheels of the two guide mechanisms are attached to the surfaces of the two sides of the I-shaped rail correspondingly, and transverse supporting force is provided for the walking device during moving; when the walking device moves along the linear section of the I-shaped rail, the walking device can be prevented from generating transverse deviation, and the moving stability of the walking device is improved.

The invention provides a motor vibration noise control method and system based on modal resonance frequency prediction, and belongs to the field of motor control. The method comprises the following steps: acquiring each order of intrinsic mode frequency of the permanent magnet motor; a cost function parameter, a current constraint condition and a control target are set, and a model prediction control method is adopted to drive an inverter to operate, specifically, the current operation state quantity of the permanent magnet motor is collected; predicting a state response in a future finite time domain based on the operation state quantity; constructing a value function, and evaluating and optimizing a state change result; and selecting an optimal voltage vector, generating a pulse signal to drive an inverter to execute, obtaining a motor high-frequency electromagnetic force wave distribution condition, comparing the motor high-frequency electromagnetic force wave distribution condition with the intrinsic mode frequency of the permanent magnet motor, and optimizing an optimal voltage vector selection logic. The problems that harmonic waves are concentrated and resonance is easily caused by a fixed switching frequency modulation method in the prior art, and a passive suppression method is high in cost and poor in flexibility are solved.

The utility model belongs to the technical field of rust removal devices, and discloses a rust removal device for a steel structure, which comprises a support frame, a servo motor, a conveying roller, a transmission gear, a transmission rack, a sliding rail, a support sliding rod, a lifting mechanism, a connecting rod, a rotating motor, a polishing rust removal block, an adjusting mechanism and a rust slag collecting assembly, the conveying roller is arranged in the supporting frame and movably connected with the supporting frame, the right side of the conveying roller is fixedly connected with the left side of the transmission gear, the surface of the transmission gear is in meshed connection with the inner surface of the transmission rack, and the output end of the servo motor is fixedly connected with the right side of the transmission gear. The problems that when an existing rust removal device of a steel structure conducts polishing and rust removal on a component made of a steel structure material, the position of rust removal equipment cannot be adjusted, and when the short-point steel structure component is polished and derusted, the steel structure component shifts, so that rust removal on the component is affected are solved.

The invention discloses a wind power blade provided with liquid dampers and a preparation method of the wind power blade. 10-20 fish-shaped sheet type liquid dampers are arranged in series in the axial direction of an inner cavity of the blade in a section 10-20 m away from a blade tip, and the fish-shaped sheet type liquid dampers equivalently replace original blade webs in the section; the fish-shaped sheet type liquid dampers and the blade skin are bonded together through structural adhesive, and every two fish-shaped sheet type liquid dampers are bonded together through structural adhesive. The fish-shaped sheet type liquid damper is a sheet type prefabricated part with a fish-shaped section, the outer contour of the fish-shaped sheet type liquid damper is the clearance size of an inner cavity of the wing-shaped section of the blade, a flow guide partition plate perpendicular to the chord line of the blade is arranged in the fish-shaped sheet type liquid damper, and the inner cavity of the fish-shaped sheet type liquid damper is divided into zigzag and roundabout thin and long damping liquid flow channels by the flow guide partition plate. According to the blade provided with the liquid damper, vibration of the blade in the shimmy direction can be effectively restrained in the blade operation and shutdown states.

The invention discloses an aerostatic spindle rotation error simulation method under the influence of a speed effect, which considers the influence of centrifugal force, gyroscopic effect and other speed effects on spindle rotation errors, and establishes an aerostatic bearing-rotor system dynamic model under the influence of the speed effect to obtain a spindle rotation trajectory to research the spindle rotation errors. The method comprises the following steps: establishing an air static pressure bearing-rotor system model according to the structure and working principle of an air static pressure main shaft; establishing a dynamic matrix model of the aerostatic bearing-rotor system under the influence of the speed effect according to the vibration characteristics of the main shaft; processing the vibration signal to obtain an amplitude-frequency curve of the main shaft system under the influence of the speed effect; the translation displacement and deflection angle of the spindle vibration are superposed, a rotation track of a bearing-rotor system under the influence of the speed effect is established, and then the influence of the speed effect on the rotation error of the aerostatic spindle is researched according to the result.

The invention relates to the technical field of household appliances, and discloses a pipeline system which comprises a refrigerant pipe, a fixing rubber block, an air pressure adjusting mechanism, a vibration sensor, a compressor frequency determining module and a controller assembly. The controller assembly is connected with the air pressure adjusting mechanism, the vibration sensor and the compressor frequency determining module and used for controlling the air pressure adjusting mechanism to adjust the air pressure of the air bag for fixing the rubber block according to the vibration frequency, detected by the vibration sensor, of the pipeline system and the compressor operation frequency obtained by the compressor frequency determining module. The air pressure of the air bag is adjusted according to the frequencies of the refrigerant pipe and the compressor, so that the vibration frequency of the pipeline system avoids the frequency of the compressor, resonance between the refrigerant pipe and the compressor is avoided, the vibration amplitude of the refrigerant pipe can be effectively reduced, noise is reduced, and the overall stability of the pipeline system is improved. The invention further discloses a control method for preventing resonance of the pipeline system.

The invention relates to the technical field of household appliances, and discloses a pipeline system which comprises a refrigerant pipe, a fixed rubber block, a rubber block adjusting mechanism, a vibration sensor, a compressor frequency determining module and a controller assembly. The controller assembly is connected with the rubber block adjusting mechanism, the vibration sensor and the compressor frequency determining module and used for controlling the rubber block adjusting mechanism to adjust the hardness of the fixed rubber block according to the vibration frequency, detected by the vibration sensor, of the pipeline system and the compressor operation frequency obtained by the compressor frequency determining module. The hardness of the fixed rubber block is adjusted according to the frequency of the refrigerant pipe and the compressor, so that the vibration frequency of the pipeline system is kept away from the frequency of the compressor, resonance between the refrigerant pipe and the compressor is avoided, the vibration amplitude of the refrigerant pipe can be effectively reduced, noise is reduced, and the overall stability of the pipeline system is improved. The invention further discloses a control method for preventing resonance of the pipeline system.

The invention relates to the technical field of household appliances, and discloses a rubber block for fixing refrigerant pipes, which is used for fixing a plurality of refrigerant pipes and comprises a rubber block main body and an expansion module. The rubber block main body is fixedly connected with a plurality of refrigerant pipes; the expansion module is arranged in the rubber block body and can extrude the rubber block body through expansion to adjust the structural rigidity of the rubber block body. The vibration frequency of the refrigerant pipe can avoid the frequency of the compressor, resonance between the refrigerant pipe and the compressor is avoided, the vibration amplitude of the refrigerant pipe can be effectively reduced, the stress risk of the whole pipeline system is reduced, and the whole stability of the pipeline system is improved. The invention further discloses a pipeline system.

This invention relates to the field of single-phase circuit fault location technology, specifically to a method and system for tracing single-phase circuit fault points. When measuring distributed capacitance, this application generates a rectangular oscillating wave, output to the capacitor under test, and uses an integrating circuit to measure the voltage value. The capacitance value is then confirmed based on the voltage value. Since distributed capacitance exists between conductors and its value is related to the conductor length, by measuring the distributed capacitance, the length of the conductor can be determined, i.e., the distance to the fault, thereby determining the fault location. This application can accurately locate fault points in wall-buried or underground circuits, reducing operating costs, and has the functions of accurately locating line fault points and testing the length of broken wires.

This application belongs to the field of semiconductor processing technology, specifically relating to a backlight reflective layer printing device and its application. This application effectively controls the vibration generated during the printing process by optimizing the mechanical structure and position design of the frame, support plate device, and multi-axis spindle, reducing the deviation between the actual operating path and the planned path of the piezoelectric jet valve. This significantly improves the stability of the piezoelectric jet valve operation and the printing accuracy. Furthermore, this application, by setting up a micro-adjustment device, a positioning system, an inkjet calibration system, and a needle alignment device, and utilizing their coordinated relationship, can precisely correct printing parameters such as the jetting position or jetting volume of the piezoelectric jet valve. Therefore, based on the aforementioned stable printer body structure, the coating quality of the backlight reflective layer obtained by piezoelectric jet printing will be further improved. Thus, the backlight reflective layer prepared using this invention has better thickness uniformity and a better reflective effect.

The present invention discloses a liftable rubber bearing with an air spring, belonging to the technical field of bridge shock absorption. It includes an upper pier and a lower pier arranged oppositely, and the upper pier and the lower pier are connected by support columns. The support columns include connecting cylinders, rubber bonding blocks and a number of air elastic columns. The connecting cylinder is provided with a number of uniformly distributed air elastic columns penetrating along its circumferential direction. The air elastic columns can extend or shorten along the axis direction of the support column, and the connecting cylinder is filled with the rubber bonding blocks. By arranging a number of air elastic columns that can expand and contract along the axis direction of the support column in the circumferential direction of the support column, using the elastic characteristics of the air elastic columns, as the vibration load of the rubber bearing increases, the bearing capacity of the rubber bearing increases, and the air elastic columns can suppress the vibration amplitude and avoid resonance. When the impact load increases, the stiffness also becomes larger, ensuring a good vibration isolation effect.

The application provides a parameter optimization method and system of an integrated inductance filter, a terminal and a storage medium, relates to the technical field of regulator parameter optimization, and comprises the following steps: obtaining an inductance temperature parameter, a filter capacitance value and an actual voltage value; analyzing the inductance temperature parameter and the filter capacitance value to determine a filter cutoff frequency and an effective inductance value; analyzing the actual voltage value, the filter cutoff frequency and the effective inductance value to determine an inductance adjustment amount; obtaining an initial proportional gain and a current output current; analyzing the inductance adjustment amount, the effective inductance value, the initial proportional gain and the current output current to determine regulator optimization parameters; and controlling a preset regulator to work according to the regulator optimization parameters. The application has the effect of ensuring the stability of regulator operation.

This application discloses a method for calculating the vibration isolation of ship vibration isolation devices based on isolator type spectrum data, relating to the field of ship vibration isolation design. The method includes: acquiring the type spectrum data and impedance test data of the target isolator; determining the stiffness and damping parameters of the target isolator based on the type spectrum data and impedance test data; constructing a finite element model of the ship vibration isolation device; inputting the stiffness and damping parameters of the target isolator into the finite element model for calculation, and obtaining the vibration isolation calculation results of the target isolator. This method can efficiently utilize isolator type spectrum data to conduct vibration isolation calculation and evaluation of ship vibration isolation devices during the ship design phase, avoiding resonance between the natural frequency of the vibration isolation device and the excitation frequency of the equipment, and improving the vibration isolation effect.

The invention provides a power assembly and a vehicle with the power assembly, the power assembly comprises an integrated shell and a stator rotating mechanism, the integrated shell is internally provided with a containing cavity, the containing cavity is internally provided with a motor shaft, a first motor unit and a second motor unit, the first motor unit and the second motor unit are both arranged on the motor shaft, and the stator rotating mechanism is arranged in the containing cavity. The first motor unit and the second motor unit are arranged in the axial direction of the motor shaft in a spaced mode. The stator rotating mechanism is connected with a stator of the second motor unit, and the stator rotating mechanism is rotatably arranged relative to the side wall of the containing cavity so as to adjust the stator angle of the second motor unit. By designing the stator rotating mechanism, the circumferential angle of the stator of the second motor unit is adjusted, and noise and resonance of the motor are reduced.

The application discloses a heat treatment device and method for photovoltaic module recycling, and belongs to the field of photovoltaic module recycling, and comprises a heat treatment room, a vibrating platform, a lifting mechanism, a clamping mechanism and a fixing seat. The photovoltaic module can be placed on the fixing seat, the heat treatment room can heat the area where the fixing seat is located, and the heating temperature of the heat treatment room can make the EVA adhesive film become a solid jelly-like film. The adsorption mechanism can adsorb the glass layer or the back plate of the photovoltaic module and drive the glass layer or the back plate to move upwards. The EVA adhesive film in the photovoltaic module is adjusted to a solid jelly-like film by low temperature, the vibrating platform causes intense relative movement between the back plate and the battery plate and between the battery plate and the glass layer, thereby breaking the EVA adhesive film in the middle, and the glass layer, the battery plate and the back plate are disassembled. After disassembly, the high-pressure blowing mechanism is used to remove the EVA adhesive film remaining on the glass layer, the battery plate and the back plate. In the whole process, the EVA adhesive film is not dissolved and harmful gas is not generated.

The invention relates to the technical field of feed trays, and discloses a novel feed tray detection device, which comprises an adjustable bracket used for mounting and supporting the detection device and avoiding a vibration source; the connecting support and the adjustable support are installed in a hinged mode, the connecting support is used for adjusting the detection angle of the detection device, a mounting plate is installed on one side of the connecting support, and the relative height of the mounting plate and the connecting support is adjustable; the pendulum component is arranged on the side surface of the mounting plate and is rotationally connected with the mounting plate; according to the invention, the problems of unstable material quantity and high alarm rate caused by similar colors and different heights of products in traditional optical fiber detection are comprehensively solved through a plurality of adjusting structures (the adjusting pipe has multiple gears, and the angle and height of the connecting bracket are adjustable) and different state designs (vertical / inclined / universal ball structures) of the pendulum component, and the production efficiency is effectively improved.

This utility model provides a low-noise vibration damper assembly, comprising a transmission disc connected to a wheel hub via a central hole and secured with rivets. Cover plate A and cover plate B are respectively provided on both sides of the transmission disc, with a fixing seat between them and a limiting block on the outer edge of the fixing seat. The transmission disc has a window containing a vibration damping spring, with fixing blocks at both ends of the spring. Multiple bosses are evenly distributed on the outer circumference of the transmission disc, with a rotating block between adjacent bosses. The fixing blocks, rotating blocks, and limiting blocks are all made of elastic material. This invention solves the technical problem of noise and reduced comfort caused by rigid contact between the transmission disc and elastic or limiting elements in existing vibration dampers. This utility model can be widely applied to vehicle transmission systems.

The utility model belongs to the technical field of vehicles, and provides a cross beam structure and a frame. The cross beam structure is arranged on a vehicle frame, the vehicle frame is provided with two longitudinal beams which extend in the length direction of a vehicle and are oppositely arranged, the cross beam structure comprises a cross beam body and connecting assemblies, the cross beam body extends in the width direction of the vehicle, and the connecting assemblies are arranged at the two ends of the cross beam body. And the cross beam main body is connected with the longitudinal beam through the connecting assembly. According to the utility model, the local transverse rigidity of the frame is improved, the local mode of the frame is also improved, the dynamic exciting force of an engine is avoided, the resonance of the frame is avoided, and the roar noise of acceleration in a vehicle is reduced.

An optimization design method of a double-tuned filter for a converter station comprises the following steps: calculating a total impedance function Z (omega) of the double-tuned filter; representing two tuning points of the filter through a full impedance function Z (omega) of the double-tuned filter, and defining an intermediate angular frequency of the double-tuned filter; the value of a high-voltage side capacitor C1 is determined according to the fundamental wave reactive compensation quantity QS1, and the values of L1, L2 and C2 are solved; and calculating the fundamental wave power loss of the medium resistor R of the double-tuned filter and the harmonic amplification coefficient H (omega) of the characteristic harmonic voltage of the AC filter of the converter station. And with the filtering performance, the resonance-free risk and the equipment investment cost as constraint conditions, the values of L1, L2 and C2 are optimized by adopting an optimization algorithm. According to the method, the optimal design process of an existing double-tuned filter topological structure for the converter station is analyzed in detail by considering the filtering effect and the harmonic amplification effect and combining the circuit principle, the filtering effect of the double-tuned filter for the converter station can be improved, and the harmonic resonance or harmonic amplification risk is avoided.

The utility model belongs to the technical field of air conditioners and discloses a high-efficiency fixed-frequency low-noise air conditioner which comprises a base, a machine body is arranged at the top of the base, first transverse rods are fixedly connected to the left side and the right side of an inner cavity of the base, and moving blocks are movably arranged on the left side and the right side of the outer side of each first transverse rod in a sleeved mode. The tops of the two moving blocks are rotationally connected with connecting plates, a rectangular frame is fixedly installed on the right side of the machine body, a heat dissipation net is arranged in an inner cavity of the rectangular frame, the top of the heat dissipation net penetrates through the rectangular frame, and a limiting seat is fixedly installed on the top of the rectangular frame. According to the utility model, the machine body can be damped and buffered, the resonance between the machine body and the mounting rack is avoided, the noise reduction effect of the machine body is improved, the heat dissipation net can be conveniently detached and cleaned, the heat dissipation efficiency of the machine body is improved, and the service life of the machine body is prolonged.

The utility model discloses a platform reinforcing device and an ore storage tank. The platform reinforcing device comprises a foundation structure and a reinforcing structure, the bottom end of the lower supporting column is connected with the foundation structure; the top end of the upper supporting column is connected with the upper platform beam; the bottom end of the upper supporting column is connected with the top end of the lower supporting column through the supporting connecting structure, the lower platform below the upper platform beam is located between the upper supporting column and the lower supporting column, and vibration isolation gaps are formed between the lower platform and the upper supporting column and between the lower platform and the lower supporting column. Resonance caused by the fact that the natural vibration frequency of the upper platform beam of the vibrating screen platform is close to the vibration frequency of a vibrating screen can be avoided, vibration of the upper platform beam of the vibrating screen platform is reduced, the vibration can be transmitted to a base structure, structural damage of the upper platform beam caused by vibration is avoided, reinforcing of the upper platform beam is achieved, and the service life of the vibrating screen platform is prolonged. And the vibration can be prevented from being transmitted to the weighing platform, so that the stable operation of the weighing device on the weighing platform can be ensured.

This utility model relates to the field of vibratory feeder technology and discloses a vibratory feeder for a flow regulator, including a base, a sliding frame slidably connected inside the base, a supporting shell fixedly connected to the top of the sliding frame, a sliding rod slidably connected inside the supporting shell, and a vibratory feeder fixedly connected to the top of the sliding rod. This utility model utilizes the linear displacement characteristics of the threaded rod to precisely control the position of the moving block, thereby flexibly adjusting the rotation radius of the connecting column. This design allows the vibration amplitude to be adjusted in real time according to material characteristics such as weight, surface friction coefficient, or flow requirements, enhancing the equipment's adaptability to different working conditions. The threaded connection structure avoids the risk of slippage or jamming of the moving block, while the meshing of the first bevel gear with the drive motor transmits high torque, ensuring smooth and controllable changes in vibration amplitude during adjustment, and preventing material spillage or equipment resonance caused by sudden changes.

The invention discloses a diesel DCT power assembly resonance optimization method and system, relates to the technical field of power assembly simulation testing, and aims to solve the problem that the engine speed lasts for a long time in a resonance speed interval of a dual-mass flywheel due to insufficient combustion in a cylinder and low output power of a diesel engine under a low-temperature cold start working condition. The starting strategy of the diesel engine is optimized, so that the power source of the diesel DCT power assembly overcomes the resistance source of the diesel DCT power assembly, and then the starting rotating speed of the diesel engine can quickly pass through the resonance interval of the dual-mass flywheel; by the adoption of the resonance optimization method, resonance generated by a power system with the diesel engine and the DCT gearbox matched with each other during low-temperature cold start can be effectively reduced, and the engine rotating speed can be prevented from being kept within the resonance rotating speed interval of the dual-mass flywheel all the time when the engine is started. And the service life of main parts in the power assembly can be prolonged.

The utility model discloses a kind of high-efficiency vacuumizing equipment, belong to vacuumizing equipment technical field, including fuselage, and four dampers for anti-shock protection are arranged below fuselage, the bottom end of four dampers is connected with mounting seat, the right side of fuselage is equipped with back cover, the left side of fuselage is equipped with front cover, and the top of front cover is provided with two air inlet and outlet seats, plug is installed in the inside of two air inlet and outlet seats and penetrates, the top of plug is connected with pipeline, the bottom of fuselage is rotatably installed with two support rods, and the bottom end of two support rods is rotatably connected with moving block. The high-efficiency vacuumizing equipment is provided with damper, mounting seat is connected with four dampers at the bottom of fuselage, the buffering protection performance of fuselage itself can be increased by four dampers, mechanical wear is reduced, key components are protected, resonance between fuselage and pipeline due to rigid connection is avoided, and the service life of vacuumizing equipment is improved.

The utility model discloses a kind of cleaning device for kaolin centrifuge disc piece.The device of the utility model includes: first water tank bottom is equipped with inclined deflector;Variable-frequency high-pressure water pump is connected with branch pipe by main pipe, branch pipe is arranged in the inner wall of first water tank, nozzle is arranged on branch pipe, pulse solenoid valve is arranged on main pipe;Ultrasonic cleaning area includes second water tank and the ultrasonic wave generating device placed in second water tank;Moving track straddles high-pressure cleaning area and ultrasonic cleaning area, the both ends of moving track are respectively rotatably connected with the side wall of first water tank and second water tank, and first limiting structure is used to fixed moving track in horizontal and overturning state;Fixed frame is slidably connected with moving track, and fixed frame is limited and fixed by second limiting structure;A plurality of supports are arranged on fixed frame.The utility model can completely remove the kaolin attached layer on disc piece, improve cleaning efficiency, reduce the damage risk to disc piece.

The invention discloses a new energy integrated prefabricated substation, and relates to the technical field of substations. The upper part of a base is fixedly provided with an inner cabinet body which is used for installing power equipment and has an open front surface, and the side walls of the two sides of the inner cabinet body are both provided with a plurality of ventilation openings A; the upper portion of the base is further detachably provided with an outer cabinet body which is arranged outside the inner cabinet body in a sleeving mode, the front face of the outer cabinet body is of an open structure, the side walls of the two sides of the outer cabinet body are each provided with a plurality of ventilation openings B obliquely corresponding to the ventilation openings A in the side walls of the inner cabinet body in a one-to-one mode, and each ventilation opening B is lower than the corresponding ventilation opening A; a ventilation pipe is detachably installed between the ventilation opening A and the ventilation opening B which are obliquely corresponding, an inner cavity is formed in the inner wall of the upper portion of the outer cabinet body, and a constant-temperature and constant-humidity air conditioner used for adjusting the temperature and humidity in the outer cabinet body is arranged in the inner cavity. Through cooperation of the inner cabinet body and the outer cabinet body, it can be guaranteed that power supply equipment in the inner cabinet body works in a good working environment all the time, and effective blocking protection is conducted in the inner cabinet body.

This utility model relates to the technical field of pipeline vibration damping equipment, and in particular to a device for controlling blasting vibration when a tunnel passes under an adjacent natural gas pipeline. The technical solution includes a base plate and a natural gas pipeline body. An upper clamping plate and a lower clamping plate are provided directly above the base plate to fix the natural gas pipeline body, and a pair of vertical plates are also included at the bottom of the upper clamping plate. This utility model utilizes the cooperation of components such as the base plate, base block, vertical plates, and buffer mechanism. When using the device, the base plate is first fixed through mounting holes, and then the upper and lower clamping plates are used to fix the pipeline using a connecting plate, a second bolt, and a nut. The vertical plates and base block are detachably connected via sliding grooves and a first bolt. When blasting vibration occurs, the vibration sensor transmits a signal to the controller. The controller drives a hydraulic damping shock absorber to absorb the vibration energy. Simultaneously, the insertion rod acts as a limit, and the return spring enhances overall stability, thereby avoiding the risks of resonance, component damage, and leakage caused by rigid connections.