326 results about "Diesel engine" patented technology

This invention relates to the field of assisted welding, and discloses a welding fixture for a single frame piece of a V-type air-cooled diesel engine and its process. The fixture includes a base and a controller. The base has a horizontal support surface for supporting the single frame piece, and a positioning block that engages with the inclined surface of the single frame piece is provided on the horizontal support surface. An adjustment mechanism is provided on the horizontal support surface for adjusting its posture. The adjustment mechanism includes: a clamping assembly, disposed on the horizontal support surface, for clamping and fixing the single frame piece; a lifting assembly that allows the horizontal support surface to rise relative to the upper surface of the base and to deflect along the horizontal support surface; and a driving assembly that drives the horizontal support surface to deflect during welding, thereby changing its posture. This invention achieves posture adjustment of the single frame piece during the welding process through the adjustment mechanism, thereby fully exposing the welding interface, improving welding quality, and allowing for staged cleaning of welding slag.

This invention discloses a composite gating system and casting method for a lightweight, high-strength, and tough diesel engine cylinder head. The composite gating system includes a sprue, a runner, a stepped ingate, and a top riser. The lower end of the sprue is connected to the runner. The runner is connected to the stepped ingate. The stepped ingate includes a bottom ingate and a middle ingate. The bottom ingate extends downward from the runner and connects to the lower part of the diesel engine cylinder head cavity. The middle ingate extends from the runner and connects to the middle part of the diesel engine cylinder head cavity. The top riser is located at the hot spot of the diesel engine cylinder head, and auxiliary risers are also provided in some hot spot areas. This invention addresses the characteristics of medium-entropy eutectic alloys, such as high melting point, poor fluidity, easy oxidation, and narrow solidification range, by designing a dedicated composite gating system and supporting casting process. This solves the shortcomings of traditional diesel engine cylinder heads in terms of lightweight, strength, toughness, and high-temperature performance, providing a reliable guarantee for improving the overall performance of diesel engines.

This utility model discloses a heating system for a cable-laying vessel with waste heat recovery, belonging to the field of cable-laying vessels. The heating system includes a diesel engine cylinder liner, a hot water boiler system, a seawater cooling system, a first heat exchanger, and a second heat exchanger. The first heat exchanger's first heat exchange circuit is connected to the diesel engine cylinder liner, its second heat exchange circuit is connected to the hot water boiler system, its third heat exchange circuit is connected to the diesel engine cylinder liner, and its fourth heat exchange circuit is connected to the seawater cooling system. This heating system for a cable-laying vessel with waste heat recovery has a waste heat recovery function and can use the recovered heat to heat the cabins or preheat the cooling water in the seawater cooling system.

This invention discloses an emergency engagement structure for a fan clutch, relating to the field of engine cooling technology. It addresses the problem in mechanical fans with clutches where leakage of transmission oil within the clutch causes the fan to lose power and stop, leading to diesel engine overheating and shutdown. The emergency engagement structure includes a drive shaft, a driven shaft, and an engagement unit. The drive shaft is connected to the engine, and the driven shaft is mounted on the fan. The drive shaft transmits rotation to the driven shaft and the fan via transmission oil. The engagement unit is located within the hollow portion of the driven shaft and serves to rigidly connect the driven shaft to the drive shaft. The actuator of the engagement unit is an electric actuator that pushes a cylindrical pin through a through-hole in the side wall of the driven shaft, abutting against the drive shaft. This achieves a rigid connection between the driven and drive shafts, allowing the fan to continue operating without relying on transmission oil and preventing diesel engine overheating.

This utility model discloses a self-locking lifting tool for cylinder liners of large-diameter diesel engines, belonging to the field of lifting tool technology. It solves the problems of cumbersome and inefficient operation of existing lifting tools for cylinder liners. The self-locking lifting tool for large-diameter diesel engine cylinder liners includes a lifting rod with a limiting block at its bottom. A fixing sleeve is fitted onto the lifting rod and fixedly connected to the limiting block. A sliding sleeve is slidably fitted onto the lifting rod above the fixing sleeve. The fixing sleeve and the sliding sleeve have the same external structure. Multiple lifting arms are hinged to the sliding sleeve. Each lifting arm includes a first connecting arm and a second connecting arm. The first connecting arm is connected to the second connecting arm and tilts inward. The first connecting arm is hinged to the sliding sleeve. A connecting rod is hinged between the second connecting arm and the fixing sleeve. This self-locking lifting tool for large-diameter diesel engine cylinder liners effectively improves work efficiency.

The utility model provides a kind of power take-off power generation system transmission, including diesel engine, the big pulley of installation in the output end of diesel engine, generator is set on diesel engine, transmission belt is connected on generator and big pulley, the tension pulley is set above transmission belt, further include rotationally connected to the outside of tension pulley for the fixed frame of tension pulley stability, self-adapting component and lubricating component, the self-adapting component includes the U-shaped frame of setting above fixed frame, self-adapting structure and buffer structure are set on U-shaped frame. By the self-adapting component of setting, tension pulley can be moved according to the different deformation state of transmission belt during operation, ensure that tension pulley always transmission belt always keep tension state, enhance the stability of tension pulley under complex vibration working condition, without frequent disassembly and installation tension pulley to adjust tension, even less need to let equipment shutdown operation, further ensure the continuity and reliability of power take-off power generation system operation.

The invention discloses a diesel engine air system parameter optimization method, device and equipment and a medium. Comprising the steps that a leader module obtains engine state data and working condition data; judging whether a preset parameter updating condition is met or not based on the state data and the working condition data, and when the preset parameter updating condition is met, scheduling a follower module to execute parameter self-learning to obtain updated parameters; the leader module optimizes the air system controller based on the updated parameters to obtain an optimized controller; and performing control based on the optimized controller, and verifying a control effect. According to a diesel engine air system model predictive control architecture, a multi-parameter optimization agent algorithm is designed, so that in the full life cycle of an engine, a mechanism model, a data model or control parameters can be adaptively optimized according to the real-time performance degradation degree, redundant calculation is reduced, the learning efficiency is improved, and the system performance is improved. The method is suitable for complex and changeable actual roads or industrial scenes.

1. Name of the product in this design: Diesel engine connecting rod (230). 2. Application of this design: Used for connecting the piston and crankshaft connecting rod of a diesel engine. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention relates to the field of low-speed diesel engine manufacturing technology, and discloses a fixed template device and its manufacturing method, as well as a fixed template method for starting air pipes. After the first connecting block and the second connecting block are installed, the surfaces of the two connecting blocks that connect with the flanges are machined. The machining dimensions and angles are determined according to the relative spatial positions of the flanges at both ends of the air pipe, forming the first connecting disc and the second connecting disc. The center point of the flange on the machined surface is then determined, and threaded holes for connection with the flanges are drilled to improve subsequent assembly accuracy. The flanges at both ends of the starting air pipe to be machined are fixed using the threaded holes of the first connecting disc and the second connecting disc, and the template assembly is spot welded. This improves the positioning accuracy of the flanges at both ends of the starting air pipe during template assembly, solves the problem of difficult installation due to manufacturing accuracy issues, reduces on-site matching and rework operations during the installation and use of the starting air pipe due to poor weld quality, and improves production efficiency and product quality.

The present disclosure provides a method and system for diagnosing wear of a fuel system of a diesel engine. The method comprises: acquiring injection parameter data of the fuel system in an injection combustion process, and pressure signal data in an oil pipe; collecting particulate matters in exhaust gas in the injection combustion process by using an electrostatic deposition sampler, and shooting images of the particulate matters by using a microscopic camera device to extract morphology data of the particulate matters from the images; emitting pulsed laser to the particulate matters by using a laser-induced breakdown spectrometer to excite plasma emission characteristic spectrum in the particulate matters to obtain composition data of the particulate matters according to the characteristic spectrum; extracting features of the injection parameter data, the morphology data of the particulate matters and the composition data of the particulate matters respectively to obtain injection features, morphology features of the particulate matters and composition features; performing time-frequency analysis on the pressure signal data to obtain pressure features; and inputting the injection features, the pressure features, the morphology features and the composition features into a wear diagnosis model to obtain a wear diagnosis result.

This utility model discloses a safety performance testing chamber for mining electromechanical equipment, including a chamber body, an explosion-proof door, an observation window, a top sealing mechanism, an intermediate sealing partition, a foundation, and pipeline interfaces. The chamber body is a rectangular steel structure, using a composite design of steel plates and grid-shaped reinforcing ribs, and is made of carbon steel and stainless steel composite materials, making it vibration-resistant and explosion-proof. The intermediate sealing partition is removable, dividing the chamber body into two small compartments or forming a complete large chamber, flexibly adapting to the testing of small or large diesel engines. The top sealing mechanism uses a U-shaped groove and a venting membrane seal, allowing for rapid pressure relief in the event of an explosion. The side walls are equipped with a rotating explosion-proof door and a high-temperature tempered glass observation window for easy entry, exit, and observation. The foundation is fixed with anchor bolts, and the interior and exterior of the chamber are coated with antistatic, flame-retardant, and rust-proof paint. This utility model can withstand the impact of a methane-air or methane-hydrogen-air mixture explosion, ensuring safety; it is suitable for verifying the safety performance of diesel engines in underground coal mines, and has the advantages of high efficiency, safety, and economy.

The utility model discloses a kind of electric frequency conversion speed-regulating turning gear, comprising: support frame;Rotary shaft, horizontally set on the side wall of support frame;Transmission mechanism, set on support frame, its power output part is connected with rotary shaft, for driving rotary shaft rotation;Fixing mechanism, set on support frame, for connecting support frame with diesel engine;Turning key, set in rotary shaft front end, for connecting with the gear shaft of turning mechanism.

The application provides a symmetrical clamping device for quick clamping of a marine diesel engine cylinder cover, and belongs to the technical field of diesel engine clamping. The device comprises a horizontal placement clamping clamp for clamping and fixing of horizontally placed cylinder covers and a vertical placement clamping clamp for clamping and fixing of vertically placed cylinder covers. The horizontal placement clamping clamp comprises a horizontal placement clamp base, a horizontal placement middle support body is vertically arranged at the middle of the upper portion of the horizontal placement clamp base, and horizontal placement positioning and fixing assemblies for symmetrical horizontal clamping of two cylinder covers are symmetrically arranged on the opposite sides of the horizontal placement middle support body. The vertical placement clamping clamp comprises a vertical placement clamp base, a vertical placement middle support body is vertically arranged at the middle of the upper portion of the vertical placement clamp base, and vertical placement positioning and fixing assemblies for symmetrical vertical clamping of two cylinder covers are symmetrically arranged on the opposite sides of the vertical placement middle support body. The application meets the needs of industrial automatic production, realizes quick and convenient clamping of the marine diesel engine cylinder cover, and guarantees the stability of batch clamping.

A retrofit mining haulage truck includes a hybrid hydrogen fuel cell / battery based power plant in place of a carbon fuel based power plant. The retrofit truck includes a frame, a hopper coupled to the frame, and a deck coupled to the frame forward of at least a portion of the hopper. The battery system is disposed in a support structure, and the support structure is integrated into the deck and forms part of the deck. A hydrogen storage system (HSS) is installed in an engine compartment volume of a retrofit truck. The nacelle is configured to house an internal combustion engine (e.g., a diesel engine) prior to remodeling. At least a portion of the fuel cell system is mounted in a wheel recess of the retrofit truck. The wheel recess is configured to receive one of a fuel tank or a hydraulic fluid reservoir prior to retrofitting.

This invention discloses an intelligent calculation method for the thermal compression ratio of a diesel engine based on machine learning, comprising the following steps: S1, acquiring diesel engine thermal operation data and generating a state data sequence; S2, performing continuous-time state encoding on the state data sequence to construct a state representation sequence; S3, performing feature contribution analysis on the state representation sequence to generate a correlated feature sequence; S4, performing state correlation propagation and compression ratio optimization calculation on the correlated feature sequence to obtain a predicted compression ratio sequence; S5, constructing a theoretical pressure curve and an in-cylinder pressure curve based on the predicted compression ratio sequence, and calculating the curve deviation sequence; S6, performing feedback updates based on the curve deviation sequence and outputting the calculation results. This invention, combined with dual-state flow liquid neural networks, possesses advantages such as strong adaptability to thermal engine states, high accuracy in compression ratio calculation, high stability in complex operating condition analysis, and strong continuous dynamic optimization capability.

The utility model relates to diesel engine electronic throttle valve technical field, concretely is a long -life diesel engine electronic throttle valve, including throttle component, install two groups of carbon deposition protection components in throttle component in, the throttle component includes the stay rod, the valve piece of fixed mounting in the stay rod inside and the two guide rods of fixed mounting in the valve piece inside and symmetrical distribution. Through installing two groups of carbon deposition protection components of symmetrical distribution at the both ends of the throat pipe, accompanying the valve piece is turned on one's side, two guide rods on the valve piece will drive two slide posts relative side bending and stretch, two post heads after being stretched finally will drive two inner gaskets shrink to the middle part of the throat pipe cavity, and then will make two filter gas elastic net stretch into the inner eight character structure, thereby can carry out carbon deposition capture to the incoming gas, and the quick reset after the filter gas elastic net loses pressure, and can further improve the separation of the surface carbon of filter gas elastic net under the knocking action of the reverse vane.

The application discloses a kind of marine diesel engine high-pressure oil pipe assembly elbow clamp assembly and elbow pipe method, clamp assembly includes first 90 elbow clamp and secondary 170 elbow clamp, first 90 elbow clamp includes first mesa panel assembly welding, high-pressure oil pipe assembly end head limiting assembly, 2 interval setting straight pipe portion vertical clamping assembly, bending roller assembly and 90 bending positioning assembly.Secondary 170 elbow clamp includes second mesa panel assembly welding, 90 bending portion horizontal clamping assembly, straight pipe portion horizontal clamping assembly, bending roller assembly and 170 bending positioning assembly.Elbow pipe method includes 1) first 90 elbow pipe, 2) secondary 170 elbow pipe forming.The application is operated time-saving and labor-saving, ensures that the space size of high-pressure oil pipe group inlet and outlet has higher position precision.Obvious improvement is made to the elbow pipe quality of high-pressure oil pipe assembly, reduces the processing cost of high-pressure oil pipe assembly, and solves the twice bending problem of high-pressure oil pipe assembly.

This invention provides a diesel engine abrasive particle color recognition method based on adaptive clustering and a dual-mapping standard, comprising the following steps: automatic extraction of diesel engine abrasive particle color through adaptive clustering; and automatic recognition of diesel engine abrasive particle color based on the extracted abrasive particle color using a dual-mapping standard. The beneficial effects of this invention are: automatically extracting abrasive particle color and associating it with abrasive particle material and harsh wear process, satisfying the two major work objectives of diesel engine abrasive particle material identification and harsh wear process identification, and achieving automatic recognition of diesel engine abrasive particle color using a dual-mapping standard; introducing a standard color system, the extracted color features are first compared with the standard color system to determine the color name, and then compared with an abrasive particle color library based on the standard color system for identification, which can effectively reduce the impact of uncertain contaminants such as dust and fibers on the identification process and reduce identification errors.

The application discloses a marine diesel engine combined black smoke control method and a black smoke control device, and relates to the technical field of marine diesel engine combined black smoke control. The marine diesel engine combined black smoke control method comprises the following steps: collecting a current speed signal of a diesel engine in real time; when the current speed is lower than a minimum safety speed threshold, outputting an opening instruction to a control valve, so that compressed air enters a spring return cylinder to drive a direction adjusting rod to extend to a limiting position; during the extension of the direction adjusting rod, if the oil regulating shaft rotates in a positive direction due to an acceleration instruction of a bridge, the limiting screw moves towards the direction adjusting rod, and the limiting screw cannot continue to move due to the obstruction of the direction adjusting rod; the speed of the diesel engine is continuously monitored, and when the speed rises to be equal to or higher than the minimum safety speed threshold, an outputting closing instruction is outputted to the control valve to retract the direction adjusting rod. The application can limit the fuel injection amount before the speed of the diesel engine reaches the allowable value, so that the problem of black smoke emission of a marine diesel engine is solved.

The utility model relates to the technical field of oil injection nozzle, concretely relates to a marine impurity-removed diesel engine oil injection nozzle assembly, including the oil injection main part, be provided with the spout on the oil injection main part, the side of oil injection main part is provided with the oil inlet, be provided with the impurity removal system for preventing the larger particle impurity to enter the oil injection nozzle assembly on the oil injection main part, the anti -unscrewing mechanism for preventing the fuel leakage between the impurity removal system and the oil injection main part is arranged between the impurity removal system and the oil injection main part. Through setting up the impurity removal system at the oil inlet, the power piece is not easy to be affected by the high temperature of the combustion chamber, and the anti -blocking mechanism can make the filter plate keep stable filtering effect, make the filter plate can continuously and efficiently filter the impurity in the fuel, prevent the impurity from entering the oil injection nozzle and fuel system, solve the high temperature in the combustion chamber can influence the performance of motor even cause the trouble, make the technical problem that the flow -directing type oil injection nozzle cleaning function is not stable.

This invention relates to a portable diesel engine proportional valve internal leakage detection system and method, comprising: a pilot valve test plate with a first hole, a second hole, a third hole, and a first fixing hole, wherein the first fixing hole matches the fixing hole of the pilot valve; a main valve test plate with a fourth hole, multiple fifth holes, and a second fixing hole, wherein the second fixing hole matches the fixing hole of the main valve; and a distribution block with a main flow channel inside, an outlet pipe at the outlet end of the main flow channel, a flow detection element at the outlet pipe, and the main flow channel also connecting to a first branch flow channel and a second branch flow channel. Both the inlet ends of the first and second branch flow channels are equipped with switching valves. The switching valve of the first branch flow channel can be connected to the first hole through a pipe, and the switching valve of the second branch flow channel can be connected to the fourth hole through a pipe. The system of this invention reduces detection costs.

This utility model discloses an oil-gas separator and a diesel engine, relating to the field of oil-gas separation technology. It includes a housing, a first orifice plate, and a second orifice plate. The housing is provided with an inlet pipe and an outlet pipe. The first and second orifice plates are sequentially arranged in the gas flow path within the housing. The holes in the first and second orifice plates are staggered. The bottom of the inner cavity of the housing is connected to the oil outlet pipe. In this utility model, after the oil-gas mixture enters the housing, larger oil droplets impact the first orifice plate due to inertia and are intercepted by it. Furthermore, the staggered arrangement of the holes in the second and first orifice plates causes the airflow to form a staggered vortex, generating a more complex trajectory. Combined with the interception effect of the non-perforated positions of the second orifice plate, the oil-gas mixture is further separated, improving the oil-gas separation efficiency. Simultaneously, the overall structure is simple, the manufacturing cost is low, and it helps reduce subsequent maintenance costs and difficulties.

The utility model discloses a kind of marine low-speed diesel engine ELVA valve dismounting tools, belong to marine low-speed diesel engine technical field, including tool frame, the tool frame includes first cross plate, second cross plate, third cross plate and first vertical plate, one end of the first cross plate is set second cross plate, other end is set third cross plate;The both ends of the first cross plate are set first vertical plate;First top silk is set on the first cross plate, second top silk is set on the third cross plate;Third top silk and fourth top silk are set on the first vertical plate. The quick dismounting of ELVA valve can be realized, the stability when guaranteeing dismounting is guaranteed, avoid the situation that ELVA valve appears to drop, and then guarantee installation.

The utility model provides a kind of low-speed marine diesel engine emission test sampling probe with cleaning core, it is related to low-speed marine diesel engine emission test sampling probe technical field, including sampling probe and built-in cleaning core;The cleaning core is composed of pipeline, high-temperature-resistant silica gel gasket and spray head, wherein, the inlet of pipeline is connected with cleaning agent source, and outlet is fixedly connected with spray head;High-temperature-resistant silica gel gasket is interferencely covered on pipeline, and its outer diameter is greater than the inside diameter of sampling probe, to realize dynamic sealing and isolate high-temperature flue gas;Spray head is provided with 8 evenly distributed small holes, for directional spraying cleaning agent;The cleaning core can rotate and move axially, cover all inner wall regions of sampling probe.The utility model is additionally provided with rotatable and axially movable cleaning core inside low-speed marine diesel engine emission test sampling probe, to realize non-disassembly type comprehensive cleaning inner wall, save maintenance time, completely remove adhered pollutants, and guarantee that emission detection error rate is ≤±1%.

The present application provides a kind of diesel water ash sulfur mixing system for diesel engine performance test, comprising: test system, for mixing diesel, ash powder, configure diesel ash powder mixed solution, and mixing diesel, water, ash powder and sulfide, configure mixed solution;Monitoring system, for the cleanliness of diesel ash powder mixed solution configured by test system is monitored in real time;Diesel filling system, for filling diesel to test system;Water filling system, for filling water to test system;Ash filling system, for filling ash powder to test system;Sulfur filling system, for filling sulfide to test system.The present application can automatically complete the accurate adjustment of each pollution level of diesel, configure different oil product diesel to test diesel engine, so as to improve the performance of diesel engine to adapt to different oil product diesel, improve the overall performance of diesel engine.

This invention discloses a method and application for anti-crack processing of diesel engine pistons, including the following steps: S1, Refined pretreatment of anti-crack special materials: Differentiated pretreatment processes are adopted for pistons made of aluminum alloy, steel, and aluminum-based composite materials to remove internal defects, refine the microstructure, and reduce residual stress. This invention constructs a complete anti-crack system from material pretreatment, precision forming, processing of easily cracked parts, stress relief, cooling optimization to quality inspection, completely blocking cracks caused by thermal fatigue, mechanical fatigue, stress concentration, corrosion, etc., increasing the crack prevention rate by more than 90% and improving the service life of pistons; at the same time, it is compatible with the processing of pistons made of different materials such as aluminum alloy, steel, and aluminum-based composite materials, and is suitable for various diesel engines such as passenger cars, commercial vehicles, marine engines, and construction machinery. The process parameters can be flexibly adjusted according to the design requirements and operating conditions of different pistons without replacing the entire set of processing equipment, thus reducing production costs.

The application discloses a kind of oil-electricity hybrid gear box with multifunctional switching, it is related to ship power transmission technical field, including box part, input shaft part, output shaft part, transmission shaft part and motor shaft part, the input shaft part is connected with diesel engine flywheel by input coupling, the output shaft part is connected with propeller by output coupling, the motor shaft part is connected with motor;The gear box further includes gear box control valve, gear box oil pump and motor oil pump part, clutch works by hydraulic system control, realizes six function modes.The application realizes the seamless switching of six working modes by the cooperation of unique clutch system in gear box and hydraulic control valve.In structure, diesel engine power is transmitted by friction plate clutch of input transmission gear, and motor power is driven by special clutch on motor shaft, both of which are independent and can be linked by bidirectional oil pump.

This invention relates to the field of mechanical condition monitoring and life prediction technology, specifically to a method and system for predicting the wear life of diesel engine cylinder liners. The method includes the following steps: acquiring the current roughness measurement value of the inner wall of the diesel engine cylinder liner; acquiring the current operating parameters of the diesel engine and the current contact load parameters between the cylinder liner and the piston rings; calculating the wear rate of the cylinder liner using a wear rate model based on adhesive wear theory, based on the current operating parameters, the current contact load parameters, and the material wear characteristic parameters of the cylinder liner and piston rings; and calculating the remaining wear life of the cylinder liner based on the current roughness measurement value, the wear rate, and a preset failure roughness threshold. This invention can combine the current surface roughness state of the cylinder liner with dynamic operating conditions to achieve a quantitative prediction of the remaining wear life of the cylinder liner.

This utility model relates to the field of generator-diesel engine technology and discloses a generator-diesel engine with a quick disassembly and maintenance mechanism. It includes a flywheel body and a gear ring slidably connected to its surface. It also includes: several fixing blocks fixedly connected to the surface of the flywheel body; several sliding grooves that cooperate with the fixing blocks are opened in the inner cavity of the gear ring; the fixing blocks are slidably connected to the interior of the sliding grooves; and an inner groove is opened inside the flywheel body. A connection structure for connecting the flywheel body and the gear ring is disposed inside the flywheel body. The purpose of this utility model is to provide a generator-diesel engine with a quick disassembly and maintenance mechanism. Through the cooperation of components such as the first bevel gear, the second bevel gear, the screw, and the limiting pin in the connection structure, the gear ring and the flywheel body can be quickly connected or separated simply by sliding the fixing plate. Compared with the traditional bolt connection method, this greatly shortens the disassembly and assembly time, thereby improving maintenance efficiency.

This invention discloses a mobile prefabricated photovoltaic-storage-diesel off-grid system based on project site scale, belonging to the field of off-grid power supply technology. The system includes a photovoltaic subsystem, an energy storage subsystem, a diesel engine subsystem, a mobile prefabricated structure, and an energy management system (EMS). Through a scale coefficient quantification model, customized matching of photovoltaic, energy storage, and diesel engine parameters with the number of personnel on site is achieved. The EMS employs dynamic power allocation across multiple subsystems, scale-differentiated start-up and shutdown, energy storage-diesel engine collaborative power replenishment, and mobile anti-interference strategies. Combined with the mobile prefabricated structure, it improves the stability and economy of off-grid power supply, solving problems such as poor adaptability, weak mobility, and limited diesel engine functionality in existing systems. It is suitable for temporary scenarios such as project sites.