137results about How to "Avoid energy loss" patented technology

The invention provides a commercial building air conditioner load intelligent scheduling control method and system, and relates to the technical field of data mining analysis, and the method comprises the steps: collecting corresponding sensing load time sequence data based on sensor modules disposed in each building region space in a commercial building; building a building sensing graph structure based on the sensing load time sequence data; processing the building sensing graph structure based on a time sequence graph attention network so as to update node features of the graph nodes; processing node features of each updated graph node based on an air conditioner parameter optimization model so as to correspondingly determine a target air conditioner operation parameter group of each building area space in a future preset time period; the air conditioner parameter optimization model adopts a reinforcement learning model. Therefore, through combination of the time sequence diagram attention network and the reinforcement learning model, intelligent scheduling of the building air conditioner load is realized, and the energy efficiency management level and the air conditioner comfort experience of a commercial building are remarkably improved.

The invention relates to the technical field of glass bottle defect detection, and particularly discloses glass wine bottle body defect optical detection equipment and detection method.The optical detection equipment comprises a conveying belt, and a clamping mechanism, a lifting rotating mechanism, a detection mechanism and a sorting mechanism are sequentially arranged on the conveying belt from the feeding end to the discharging end. The detection end of the detection mechanism is attached to the bottle body of the glass wine bottle for optical detection, the receiving end of the detection mechanism receives the light in the glass wine bottle, the light directly reaches the receiving end in the bottle after passing through a bottle body material, and a signal path is relatively fixed, so that the interference of ambient light or reflection of surrounding objects on an optical signal can be effectively reduced. The bottle body of the glass bottle has a certain thickness, deviation of light scattering and refraction is easy to occur when light passes through the thickness of the glass in traditional external detection, the error can be reduced by matching of an external detection end and an internal receiving end, fine defects such as bubbles, cracks or tiny scratches are helped to be captured, and the detection stability is improved.

The invention relates to the technical field of temperature early warning management, in particular to an electrolytic bath temperature central monitoring and early warning system. The system comprises an in-tank temperature frequency domain analysis module, an in-tank temperature and energy consumption influence analysis module, an in-tank electrolytic strength abnormity response adjustment module, an in-tank temperature over-low abnormity early warning adjustment module and an in-tank iterative execution influence analysis module. Temperature sensors are arranged at key positions in an electrolytic cell to monitor temperature signal distribution in the cell in real time and carry out frequency domain analysis, and meanwhile, corresponding current and voltage are obtained, electrolyte energy consumption analysis and time sequence influence analysis are carried out, and a time sequence correlation influence degree is obtained; and if the conditions are gradually increased and the temperature fluctuation is increased, designing and implementing an energy consumption abnormity response measure, if the conditions are gradually reduced and the temperature fluctuation is reduced, designing and implementing a temperature abnormity response measure, and if the conditions are judged to be other conditions, continuing to iteratively execute the time sequence influence analysis. The stability and quality of the electrolysis process can be guaranteed.

The invention relates to a combined pre-charging circuit of an energy storage high-voltage box and a control method, the combined pre-charging circuit of the energy storage high-voltage box is used for establishing electric connection between a battery cluster and an energy storage system, the positive electrode of the battery cluster is connected with the positive electrode of the energy storage system through a positive electrode path, and the negative electrode of the battery cluster is connected with the negative electrode of the energy storage system through a negative electrode path. The combined pre-charging circuit comprises a positive fuse, a negative fuse, a shunt, a pre-charging resistor, a combined pre-charging module and a battery cluster control module; the combined pre-charging module comprises a pre-charging switch group and a main switch group, the pre-charging switch group comprises a first positive pole switch piece and a first negative pole switch piece which act synchronously, and the main switch group comprises a second positive pole switch piece and a second negative pole switch piece which act synchronously; the positive fuse is connected to the positive path; and the negative fuse and the shunt are connected in series to the negative path. The combined pre-charging circuit of the energy storage high-voltage box can greatly reduce the usage amount of electrical equipment, and can reduce the fault rate of the energy storage high-voltage box.

The invention discloses a method of an elevator energy consumption optimization control system, which relates to the technical field of elevator energy consumption optimization, and comprises the following steps: in the elevator running process, acquiring elevator running information of a floor planned to stop in the running process in real time, and preprocessing the acquired elevator running data to obtain a pre-processed elevator running data; and a basis is provided for analyzing the use mode and the operation efficiency of the elevator. According to the invention, through intelligent division of near-distance stopping, middle-distance stopping and long-distance stopping, the elevator system realizes fine speed and acceleration adjustment aiming at different running distances, energy consumption and transportation efficiency are effectively balanced, and the power peak demand and electric power waste are reduced. The instantaneous current impact is reduced by short-distance stopping, and the mechanical wear is relieved; and the acceleration is optimized by long-distance parking, so that excessive consumption under high load is prevented, and the temperature rise of the equipment is avoided. On the whole, intelligent control reduces equipment aging and heat dissipation requirements, the service life of the elevator is remarkably prolonged, and the long-term maintenance cost is reduced.

The utility model discloses a liquid cooling plate, and relates to the technical field of liquid cooling, the liquid cooling plate comprises a plate-shaped body, a cooling flow channel structure is arranged in the plate-shaped body, and the cooling flow channel structure comprises a flow channel inlet, a flow channel outlet and at least one cooling flow channel communicated between the flow channel inlet and the flow channel outlet; the cooling flow channel comprises a heat exchange flow dividing section with at least one stage of flow dividing branch channel, a heat exchange concentration section with a plurality of heat exchange flow channels and a heat exchange flow gathering section with at least one stage of flow gathering branch channel, and the heat exchange flow dividing section, the heat exchange concentration section and the heat exchange flow gathering section are sequentially arranged in a communicating mode in the flowing direction of a cooling medium in the cooling flow channel. The at least one stage of shunting branch channel can uniformly distribute a cooling medium flowing into the cooling flow channel into the plurality of heat exchange flow channels, and the at least one stage of converging branch channel can converge the cooling medium in the plurality of heat exchange flow channels to flow out of the cooling flow channel. Thus, on the basis that the heat dissipation requirements of the front-end low-heat area and the rear-end low-heat area are met, efficient heat exchange of the high-heat area is achieved, and the heat dissipation effect, energy conservation and consumption reduction are both considered.

The invention discloses a lithium battery energy storage frequency modulation instruction prediction method and a related product. Belongs to the technical field of lithium battery energy storage. Firstly, a historical frequency modulation instruction sequence of the lithium battery energy storage system is obtained, and then the historical data is input into a pre-trained prediction model to obtain a final frequency modulation instruction prediction sequence. In the training process of the prediction model, historical frequency modulation instructions are collected to serve as a training set, and the training set is input into the prediction model for training until model training is completed. The technical problems that in the prior art, frequency modulation instruction prediction is complex, prediction precision is not high, and the effect is not ideal are solved, the prediction precision and stability of the frequency modulation instruction are remarkably improved, the system response time is greatly shortened, and the lithium battery energy storage system can respond to the frequency modulation requirement of a power system more rapidly.

The invention provides a motor rotor shaft pre-tightening structure and a motor. The motor rotor shaft pre-tightening structure comprises a stator, a rotor shaft and a bearing. The stator is provided with a shaft hole, the first end of the rotor shaft is inserted into the stator inner cavity from the shaft hole, and the bearing is fixed on the rotor shaft and located in the stator inner cavity; the bearing and the rotor shaft divide the inner cavity of the stator into a closed compression cavity, the second end of the rotor shaft is provided with a communication groove part, one end of the communication groove part is communicated with the outer side of the stator, and the other end is communicated with the closed compression cavity; when the rotor shaft rotates, air on the outer side of the stator can be driven to enter the closed compression cavity along the communicating groove part, and due to the fact that the closed compression cavity is not provided with an outlet and only provided with an inlet in the communicating groove part, the rotor shaft continuously drives the air to enter the closed compression cavity in the rotating process, so that high-pressure air is formed in the closed compression cavity; the pressure directions of the high-pressure air acting on the rotor shaft and the stator are opposite, so that pretightening force between the rotor shaft and the stator is formed, and the stator and the rotor shaft can stably and reliably operate.

The invention relates to the technical field of power grids, and discloses a horizontal flywheel energy storage system and a system control method, and the system comprises a flywheel energy storage unit, a first-stage connector, a double-fed motor and a system control unit. The flywheel energy storage unit is rigidly or flexibly connected with a rotor of the doubly-fed motor through the primary connector; a stator of the double-fed motor is electrically connected with an alternating current power grid; the system control unit is electrically connected with the flywheel energy storage unit, the primary connector and the double-feed motor; wherein the flywheel energy storage unit, the primary connector and the doubly-fed motor are all horizontally arranged, and the flywheel energy storage unit adopts vacuum sealing. The flywheel energy storage unit, the first-stage connector and the double-fed motor are all arranged in a horizontal mode, a larger and heavier flywheel rotor can be supported, the rotational inertia of the flywheel rotor is increased, and then the capacity of the horizontal flywheel energy storage system for providing the rotational inertia for an alternating current power grid is improved.

The invention relates to the technical field of laser cutting, and discloses laser equipment for glass workpiece cutting, which comprises a mounting frame, a moving assembly is arranged in the mounting frame and used for conveying glass, a cutting assembly is arranged in the mounting frame and used for carrying out laser cutting on the glass, and a laser cutting assembly is arranged in the mounting frame and used for carrying out laser cutting on the glass. A supporting column is fixedly connected to the rear side of the mounting frame, a feeding assembly is arranged on the lower side of the supporting column and used for feeding glass, cleaning assemblies are arranged on the front side and the rear side of the supporting column and used for blowing and cleaning the fed glass, and a smoke removal assembly is arranged on the rear side of the mounting frame and used for removing smoke from the glass. The glass cutting device is used for adsorbing harmful gas generated during glass cutting. Through operation of the guide rail, the electric telescopic rod and the air cylinder, negative pressure adsorption is formed through the suction cups to achieve automatic carrying, so that the requirement for manually placing glass is reduced, the operation process is simplified, and the risk that the cutting position is inaccurate due to improper operation is further reduced.

The invention discloses an electric construction cable hoister and a winding type hoisting structure, and relates to the technical field of hoisting structures, the electric construction cable hoister comprises a crawling structure, the crawling structure is arranged in a moving cavity and used for driving a rope to be hoisted, the crawling structure comprises a special-shaped hub and a meshing wheel train, and a slit gap is formed between the special-shaped hub and the meshing wheel train; a winding cavity is formed in the special-shaped hub, when a rope is lifted, the rope enters the winding cavity along the slit gap, the meshing force of the meshing wheel train and the special-shaped hub acts on the rope to gradually drive the rope to move along the slit gap, and a periodic pressing effect is generated on the rope in the rotating process of the special-shaped hub. According to the rope pressing device, the rope can smoothly pass through the contact point between the special-shaped hub and the rope pressing wheel in the moving process, energy loss caused by excessive pressing is avoided, and therefore the transmission efficiency is improved, and in addition, the design that the special-shaped hub and the rope pressing wheel periodically press the rope can automatically adjust the pressing force according to the actual diameter of the rope.

The invention relates to the technical field of carton detection, and discloses a carton bearing detection device which comprises a detection box, and a detection plate is arranged in the detection box and used for placing a carton to be detected and detecting the bearing capacity of the carton to be detected; the shaking assembly is located at the bottom of the detection box and used for driving the detection box and the carton to be detected to shake; the pressurizing assembly is located at the top of the to-be-tested carton; and the pressure applying assembly is arranged at the top of the detection box and is used for applying different pressures to the pressure applying assembly and driving the pressure applying assembly to lift and move at the top of the carton to be detected. According to the carton bearing detection device, the problem that in the prior art, in the dynamic detection process, different load pressures are difficult to apply to different cartons, so that the bearing capacity of the cartons during transportation after stacking is difficult to detect can be solved.

The control method comprises the steps that the rotating speed of a high-temperature-stage inverter compressor is mainly comprehensively determined by the high-temperature-stage exhaust temperature, the high-temperature-stage condenser temperature, the high-temperature-side outlet temperature of an intermediate heat exchanger and the high-temperature-stage return air temperature; through dynamic adjustment of the first fuzzy PID controller, the working condition and energy efficiency of the high-pressure side of the system are optimized; the rotating speed of the low-temperature-stage frequency conversion compressor is mainly comprehensively determined by the temperature in the box, the real-time rotating speed of the high-temperature-stage compressor, the low-temperature-stage exhaust temperature, the temperature of the intermediate heat exchanger and the low-temperature-stage return air temperature, and the rotating speed is dynamically adjusted through the second fuzzy PID controller so as to ensure that the temperature in the box is accurate and stable and is matched with the high-temperature-stage capacity in real time. Through cooperative control of the parameter groups, the problems of low efficiency and unstable operation caused by mismatching of two-stage capabilities of the cascade system are solved, and efficient, stable and reliable operation of the system under all working conditions is realized.

This invention discloses an integrated pump source and system. The integrated pump source includes: a pump source for generating pump light; multiple collimating lens groups, each corresponding to a light source module, for collimating the pump light emitted by the corresponding light source module; a beam splitter disposed in the output light path of at least one of the collimating lens group, focusing lens, and reflector, for splitting at least one of the output light to form a first-level pump light and a second-level pump light; a reflector disposed in the output light path of the collimating lens group and / or the beam splitter, for deflecting and guiding at least a portion of the output light; a focusing lens disposed in the output light path of the reflector and / or the beam splitter, for focusing the output light; a first output pigtail for receiving the focused first-level pump light and outputting it outward; and a second output pigtail for receiving the focused second-level pump light and outputting it outward.

The present application relates to the technical field of fuel cell, in particular to a hydrogen battery water-gas separation device for unmanned aerial vehicle, which comprises a separation shell, a cyclone separation cavity, a heat exchange condensation cavity and a hydrogen mixing cavity are sequentially arranged from bottom to top in the separation shell, a multi-stage separation and heat exchange combined structure is adopted, the technical problem that the traditional gas-liquid separator cannot completely remove the micron-sized droplets is solved, the efficient removal of liquid water droplets is realized through the cyclone separation cavity, the heat exchange between the new hydrogen and the wet hydrogen is carried out through the heat exchange condensation cavity, the residual droplets are fully condensed and precipitated, the mixed hydrogen gas with the required dryness is finally output, and the problem of fuel cell anode flooding is effectively avoided.

The utility model relates to the technical field of heat supply, in particular to a heat supply flow adjusting device which comprises a cylinder body, a top seat is arranged at the top end of the cylinder body, a plurality of sliding grooves are formed in the inner wall of the top seat, a lead screw is rotatably connected to the inner top wall of the top seat through a sealing bearing, a motor is detachably arranged on the top end wall of the top seat, and the motor is connected with the sliding grooves. The output end of the motor is fixedly connected with the top end of a lead screw through a coupler, a cylinder is connected to the outer wall of the lead screw in a threaded mode, a circular plate is connected to the outer wall of the cylinder in an interference fit mode, a plurality of sliding blocks are arranged on the outer wall of the circular plate, the sliding blocks are connected into the sliding grooves in a sliding mode, and a through hole is formed in the wall face between the cylinder body and the top base in a penetrating mode. According to the utility model, a mechanical structure is adopted to control the opening and closing of the flow regulating device, high-precision flow control can be realized, the stability and energy efficiency of a heat supply system are ensured, and the water flow of the heat supply system can be accurately controlled by monitoring and regulating the flow of a pipeline in real time.

A laser welding device and method for sealing nails of large cylindrical batteries with adjustable local atmosphere belongs to the field of new energy vehicle battery welding technology. The device includes an outer shell fitted onto the top of the battery casing, a high-lens lens mounted on the top of the outer shell via a supporting frustum, an annular gas path structure disposed inside the outer shell, dividing the back of the outer shell into upper and lower chambers, a vacuum device connected to the upper chamber via a pipeline, and a dust removal device connected to the annular gas path built into the annular gas path structure via a pipeline. The annular gas path has multiple suction ports connected to the lower chamber. An elastic sealing ring is disposed in the lower chamber, and a centering ring is clamped between the elastic sealing ring and the battery casing. A sealing nail is installed on the inner ring of the centering ring. This method achieves reliable connection of sealing nails for large cylindrical batteries, improves welding quality, reduces welding defects, and solves the problem of low yield after welding sealing nails for large cylindrical batteries.

This invention discloses a refractive rotating mirror scanning device with adjustable scanning amplitude. The device includes a laser generation and angle adjustment module and a rotating mirror module. The rotating mirror module has a rotating shaft at one end connected to multiple circumferentially arranged refractive lenses via a support mechanism. The rotating shaft is driven by a motor to rotate the refractive lenses around the center of the support mechanism. The laser generation and angle adjustment module generates laser light that is incident on the refractive lenses and also adjusts the incident angle of the laser. This invention replaces the traditional reflection path with a refractive light path and combines it with a laser incident angle adjustment mechanism, allowing the scanning light to expand the coverage area in a more compact manner in space, greatly improving the adaptability of the device in miniaturized, highly integrated applications. Furthermore, since the scanning amplitude can be dynamically adjusted via electronic control, the operation process is greatly simplified, maintenance costs are reduced, and efficiency is improved.

This application provides a highly integrated hydraulic power unit and its working method, relating to the field of hydraulic system technology. The unit includes a housing, a hydraulic pump, and a motor. The housing has an oil storage chamber, and the hydraulic pump is connected to the oil storage chamber and pumps hydraulic oil under the drive of the motor. The built-in oil storage chamber allows the oil supply process to occur entirely within the housing, eliminating the need for an external oil supply system, effectively reducing the overall size of the pump, and avoiding exposed oil supply lines. This application features multiple return oil channels around the motor, utilizing the hydraulic oil circulation process to cool the motor, enabling the installation of a high-power motor to increase power density. Furthermore, by implementing pressure-holding and shock-prevention measures, this application ensures that the pressure inside the oil tank remains positive, preventing instantaneous high-pressure shocks to the hydraulic pump. This allows the motor pump to continue pumping oil normally under harsh conditions, adapting to the shaking and swaying of mobile equipment during operation, and meeting the requirements for stable operation under adverse conditions.

The present invention discloses a polymer lithium battery circuit for the Internet of Things, the circuit includes a PMOS tube Q1, a PMOS tube Q2 and a boost chip U10, wherein: the source of the PMOS tube Q1 is connected to VBAT, the drain of the PMOS tube Q1 is connected to a communication module; the source of the PMOS tube Q2 is connected to the communication module, and the drain of the PMOS tube Q2 is respectively connected to pin 7 and pin 8 of the boost chip U10; pin 1 and pin 2 of the boost chip U10 are both grounded, and a resistor R6 is provided between pin 4 and pin 5 of the boost chip U10, and one end of the resistor R6 is connected to pin 4 of the boost chip U10. The embodiment of the present invention uses a boost circuit when the voltage is lower than 3.4V, which not only makes efficient use of the battery capacity, but also makes the battery conversion efficiency reach the optimal value, reducing the energy loss in the conversion process; when the voltage is 3.6V, since the body effect diode voltage drop inside the PMOS tube Q1 is greater than 0.6V, the boost circuit can be prevented from backflowing to the battery, reducing one anti-backflow MOS tube, and reducing the cost.

The invention discloses a calibration-free gas sensing chip based on an infrared absorption spectrum technology. The calibration-free gas sensing chip comprises an on-chip laser light source, a transmission waveguide, an on-chip optical switch, a gas sensing waveguide array and an on-chip optical detector, the on-chip laser light source is arranged at the light input end of the transmission waveguide; the on-chip optical switch is arranged between the transmission waveguide and the gas sensing waveguide array; the gas sensing waveguide array is composed of a series of waveguides with different structural parameters, and light in the waveguides is in contact with environment gas through an evanescent field; and the on-chip optical detector is arranged at the light output end of the gas sensing waveguide array and is used for receiving the optical signal, converting the optical signal into an electric signal, inversely calculating the gas concentration through the electric signal and regulating and controlling the switching condition of the on-chip optical switch. The gas sensing chip has the gas concentration measurement advantages of high precision, self-calibration and the like, and lays a foundation for realizing the application of a miniaturized gas sensor.

This invention relates to the field of agricultural machinery technology and discloses a mechanism for adjusting the speed of a star wheel. The mechanism includes a steel frame with star wheel shafts evenly distributed from bottom to top. Star wheel bodies are evenly fitted onto the star wheel shafts along their axial direction. Sprockets and chains are provided between adjacent star wheel shafts. A hydraulic motor is mounted on the outside of the steel frame. The mechanism also includes a centrifugal wheel, with its main body fixed to one end of the star wheel shaft. A radial groove is formed on the centrifugal wheel, and a centrifugal counterweight and a cam are connected within the groove via a first serpentine spring. The main body is connected to one end of the star wheel shaft via a bearing, and a first torsion spring is provided between its outer wall and the star wheel shaft. A connecting arm is provided between the cam and the centrifugal counterweight. The mechanism utilizes a hydraulic motor to independently drive the star wheel, achieving stepless speed regulation. Through the triple synergistic effect of centrifugal force adaptive clamping force adjustment, automatic jamming clearance, and eccentric linkage vibration unblocking, it effectively prevents the star wheel body from jamming and corn kernel damage, resulting in a high peeling rate, low kernel loss rate, and stable operation.

The utility model relates to the technical field of blast furnace air supply equipment, and discloses a blast furnace air supply system with an air leakage detection function, which comprises an air supply pipeline, one end of the air supply pipeline is fixedly connected with a funnel, the inner wall of the funnel is slidably connected with a filter plate, and the outer wall of the filter plate is fixedly connected with a triangular positioning block. And the outer wall of the triangular positioning block is slidably connected to the interior of the funnel, a rotating disc is slidably connected to the outer wall of the funnel, a rotating plate is fixedly connected to the inner wall of the rotating disc, a sliding rod is slidably connected to the interior of the rotating plate, and a clamping block is fixedly connected to the outer wall of the sliding rod. According to the air filtering device for the blast furnace, firstly, the rotating plate is driven to rotate in the funnel by rotating the rotating disc, so that the problem that dust, metal chips and other impurities in air are difficult to filter is solved, and the effects that the impurities in the air are filtered, abrasion to the blast furnace and air supply equipment of the blast furnace is reduced, and the service life of the equipment is prolonged are achieved.

The application relates to the field of new energy batteries, in particular to a positive pole piece, a preparation method thereof and a battery; the positive pole piece comprises a current collector, a positive pole active material layer arranged on at least one side of the current collector in the thickness direction and a glue layer arranged on the surface of the positive pole active material layer away from the current collector; the glue layer comprises a binder; the thickness ratio of the glue layer to the positive pole active material layer is 1: (10-100). The setting of the protective layer in the positive pole piece facilitates long-term storage and classification and temperature and humidity control of the positive pole piece; in the battery assembly process, the protective layer is peeled off, and the remaining current collector and coating structure are assembled with a diaphragm, a negative pole piece and other battery components, the operation is simple and easy to operate. Meanwhile, the setting of the glue layer can avoid energy loss caused by dropping of the positive pole active material.

This utility model relates to the field of leather fatliquoring agent processing technology and discloses a leather fatliquoring agent emulsification device, including a tank. A main rotating rod is rotatably installed inside the tank. Four identical stirring components are fixedly installed on the outer wall of the main rotating rod. Each stirring component includes a secondary rotating rod fixedly sleeved on the outer wall of the main rotating rod. A connecting rod 1 is hinged to the other end of the secondary rotating rod, and a connecting rod 2 is hinged to the bottom end of the connecting rod 1. An insert rod is fixedly installed on the inner wall of the connecting rod 2. This utility model allows the stirring range to be automatically adjusted according to the rotation speed of the main rotating rod by changing the rotation speed of the main rotating rod. In the high viscosity stage, the rotation speed of the main rotating rod increases, the centrifugal force increases, and the stirring cone and the connecting rod 1 form a near-horizontal shape, expanding the stirring range and avoiding energy loss caused by local overheating. When processing low viscosity materials, the rotation speed of the main rotating rod is reduced, the stirring range shrinks, and the stirring range can be automatically adjusted according to the viscosity of the material.

The invention discloses a hydraulic control system for an injection molding machine, comprising an oil tank, an energy unit and an execution unit, wherein the energy unit comprises a servo driver, a servo motor and a bidirectional closed pump, the oil tank supplies oil to the bidirectional closed pump, the servo motor is driven by the servo driver, the bidirectional closed pump is driven by the servo motor, the oil inlet end of the bidirectional closed pump is connected to the oil return end of the execution unit through a first working oil circuit, and the oil outlet end of the bidirectional closed pump is connected to the oil inlet end of the execution unit through a second working oil circuit. The advantages are simple structure, precision, high efficiency and energy saving.

This invention relates to the field of experimental equipment technology, and particularly to an NMR combustion-explosion dynamic load multi-field coupling experimental device and method. The technical solution includes a control module, an impact module, a detection module, and a vibration reduction module; wherein, the control module includes an operating platform, a transmission line, an engine, a fuel tank, an oxygen tank, connecting pipes, a high-temperature resistant fuel nozzle, and a high-temperature and pressure resistant gas sealing pipe; the operating platform is located behind the engine. This invention achieves graded control of dynamic load through combustion-explosion-electromagnetic composite loading, integrates simultaneous detection of multiple physical fields such as nuclear magnetic resonance, acoustic waves, and resistivity, sets up multi-level vibration reduction and dissipation structures to absorb residual kinetic energy, adopts a high-temperature and high-pressure resistant sealing design to ensure safety, simulates ground temperature, ground stress, and pore fluid fields to reproduce the deep in-situ multi-field coupling environment, and is centrally controlled and automatically reset by the operating platform, thereby realizing a laboratory simulation of deep dynamic disasters with flexible and adjustable parameters.

The invention relates to a distributed electro-hydraulic brake unit (10) for braking wheels of a motor vehicle. The brake unit (10) comprises a brake caliper (14) and a caliper piston (26) which can be moved axially in the brake caliper (14) by means of a drive device (22) and by means of which a hydraulic pressure can be applied to a brake piston (38). A brake lining (50) is arranged on the brake piston (38), and wherein the caliper piston (26) and the brake piston (38) are connected to one another by means of an elastic element (58), by means of which the brake piston (38) can be actively retracted after a braking process.

The invention discloses an injection molding system and method based on magnetic field assistance. The injection molding system comprises an injection molding machine and an injection mold installed on the injection molding machine. The injection molding machine comprises a machine tool fixed plate, a machine tool movable plate and a plurality of machine tool guide rods; the machine tool guide rod is sequentially arranged among the machine tool fixed plate, the injection mold and the machine tool movable plate in a penetrating manner; the injection mold is internally provided with at least two cavities, each cavity is used for forming a corresponding product contour, the injection mold is internally provided with a plurality of magnetic conductive parts and non-magnetic conductive parts, the magnetic conductive parts are in butt joint with the machine tool fixed plate side or the machine tool movable plate side to form a magnetic circuit, and the non-magnetic conductive parts are in butt joint with the machine tool fixed plate side or the machine tool movable plate side. The non-magnetic components are used for isolating adjacent magnetic circuits and preventing short circuit of the magnetic circuits; and one or more magnetic circuits jointly defined by the magnetic conductive component and the non-magnetic conductive component pass through the cavity in a concentrated manner.

The invention discloses a staged cooling distillation tower, relates to the technical field of distillation equipment, and aims to solve the technical problem of poor condensation effect due to the adoption of a single or two-stage cooling structure in a conventional distillation tower cooling system. A pre-cooling system, a main cooling system and a rear cooling system are designed, and a cooling medium of 20-30 DEG C circulates in the pre-cooling system; the main cooling system serves as a core condensation unit and is matched with a low-temperature cooling medium of-10 DEG C to 0 DEG C, shock cooling of steam can be achieved within an extremely short time, a cooling agent of 10 DEG C to 20 DEG C of the post-cooling system is fully mixed with residual steam in a mist form, and secondary condensation is conducted on a trace amount of uncondensed steam. The three-stage cooling system disclosed by the invention forms a full-process condensation system of buffering, shock cooling and fine treatment through temperature gradient control, so that the condensation effect of the distillation tower is optimized, and products in steam are better separated.