Marine generator based on environmental parameters

Abstract

The invention provides a marine generator based on environmental parameters, belongs to the technical field of marine power equipment, and solves the technical problems that an existing generator is insufficient in heat dissipation efficiency in a severe marine environment, only can passively resist corrosion, cannot be adaptively controlled and the like. Comprising a generator shell, a wiring control box is arranged on the generator shell, a control panel is arranged in the wiring control box, an eccentric stator assembly is arranged in the generator shell, a front end cover and a rear end cover are arranged on the generator shell, and a rotor is rotationally arranged between the front end cover and the rear end cover; the control panel is provided with an environmental parameter acquisition module, a central processing module, an execution control module and a man-machine interaction module which are electrically connected with the control panel. Internal air cooling, winding liquid cooling and an anti-corrosion air curtain are integrated, and efficient heat dissipation and active corrosion prevention are achieved; reliability and maintainability are ensured through module design; and state sensing and self-adaptive regulation and control are realized through an intelligent control system, and high-reliability operation in a marine environment is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ship power equipment, and relates to a marine generator based on an environmental parameter protection function, in particular to a marine generator based on an environmental parameter. BACKGROUND

[0002] As the core power equipment of a ship power system, the operation reliability of a marine generator is directly related to the navigation safety and operation efficiency of a ship. The ship sails in a harsh marine environment with high temperature, high humidity and high salt fog for a long time, which puts extremely strict requirements on the heat dissipation performance, structural corrosion resistance and environmental adaptability of the generator.

[0003] At present, the conventional marine generator mainly adopts air cooling or external circulating water cooling for heat dissipation. The air cooling method is simple in structure, but the heat dissipation efficiency is limited in a closed cabin. Although the external circulating water cooling improves the heat dissipation capacity, it only focuses on internal cooling and does not actively protect the outside of the generator shell, so that the shell is still susceptible to environmental corrosion. In terms of control strategy, the traditional generator relies on the protection logic of fixed threshold value, lacks real-time perception and adaptive adjustment capability of the operating environment and its own state, and the operation mode is passive, so that preventive maintenance and energy efficiency optimization are difficult to achieve.

[0004] Therefore, the application proposes a marine generator based on an environmental parameter. SUMMARY

[0005] The application aims at the above-mentioned problems existing in the prior art, and proposes a marine generator based on an environmental parameter. The technical problem to be solved by the application is how to improve the heat dissipation efficiency, active corrosion resistance, mechanical reliability and operation intelligent level of the generator in a harsh marine environment by integrating efficient composite cooling, active environmental protection, anti-vibration stable structure and adaptive control system, so as to realize high reliability and long life operation.

[0006] The object of the application can be achieved by the following technical scheme: The utility model provides a marine generator based on environmental parameter, including generator housing, the outside of generator housing is equipped with air -cooled interface, and air -cooled interface is connected with external filter, and the outside upper end of generator housing is equipped with wiring control box, and the inside of wiring control box is equipped with control board, and wiring control box is connected with external battery, external excitation cabinet, external frequency conversion circulating pump and water -cooled plate type heat exchanger respectively, and the inside of generator housing is detachably equipped with eccentric stator assembly, and the both sides of generator housing are detachably equipped with front end cover and rear end cover respectively, and the rotatable eccentric stator assembly of generator housing is equipped with rotor between front end cover and rear end cover, and the inside of eccentric stator assembly is located rotor, and the axis of rotor is collinear with the outside axis of eccentric stator assembly, and the inhomogeneous air gap is formed between the outside of rotor and the inside of eccentric stator assembly, and the rear side of the shaft of rotor is equipped with centrifugal fan, and centrifugal fan is located in the inside of rear end cover. The control board is provided with an environmental parameter acquisition module, a central processing module, an execution control module and a man-machine interaction module electrically connected thereto.

[0007] The working principle of the utility model is that the rotor in the generator housing rotates inside the eccentric stator assembly, driving the centrifugal fan at the rear side of the shaft to rotate, the centrifugal fan sucks air inside the generator housing, the air-cooled interface outside the generator housing connects the external filter to introduce filtered air for auxiliary air cooling, the filtered air passes through the rotor, the air gap and the eccentric stator assembly, and carries away the heat on the rotor and the eccentric stator assembly, the hot air after cooling is transported to the rear end cover by the centrifugal fan, and is guided to the outside of the generator housing, forming a hot air barrier to isolate the humid air, keeping the outside of the generator housing dry, avoiding salt mist and humid air corrosion of the generator housing, the frequency conversion circulating pump and the water-cooled plate type heat exchanger are connected with the eccentric stator assembly through the wiring control box, and the eccentric stator assembly is cooled by circulating water cooling to ensure stable internal temperature, the control board in the wiring control box monitors environmental data in real time through the environmental parameter acquisition module, the central processing module analyzes the data, and the execution control module automatically adjusts the frequency conversion circulating pump and the water-cooled plate type heat exchanger connected outside to optimize the cooling efficiency, and combines the excitation cabinet to ensure stable power supply, and the man-machine interaction module provides state monitoring and operation interface, so that reliable operation and protection in the marine environment are realized.

[0008] The outside of the generator housing is provided with two left and right symmetrical shock-absorbing bases, the outside of the generator housing is provided with two front and rear symmetrical lifting lugs, the front and rear sides of the generator housing are provided with mounting flanges, the inner wall of the generator housing is provided with a retaining ring and a plurality of limiting protrusions, and the retaining ring is located in front of the plurality of limiting protrusions.

[0009] With the above structure, the shock-absorbing bases symmetrically arranged below the generator shell are used to absorb and buffer the vibration in operation and the ship environment, ensuring the stability of the whole machine; the lifting lugs symmetrically arranged above the generator shell are used to provide the force points for lifting, carrying and maintaining; the mounting flanges on the front and rear sides of the generator shell are used to stably connect with the front end cover, the rear end cover and other external structures; and the stop ring on the inner wall of the generator shell and the limit protrusions circumferentially and uniformly arranged at the rear side are used to axially and circumferentially position and fix the detachable eccentric stator assembly inside, preventing the eccentric stator assembly from being displaced in operation, thereby providing a basic guarantee for the overall structural stability, installation convenience and positioning and installation of the internal core components of the generator.

[0010] The wiring control box is internally provided with two heat exchange water pipes, and the wiring control box is provided with two power transmission interfaces and two water cooling interfaces, one end of the two heat exchange water pipes is connected with the two water cooling interfaces respectively, the two power transmission interfaces are connected with the external excitation cabinet and the external storage battery respectively, and the two water cooling interfaces are connected with the external frequency conversion circulating pump and the water-cooled plate heat exchanger respectively.

[0011] With the above structure, the two power transmission interfaces on the wiring control box are connected with the external excitation cabinet and the external storage battery for storing electricity respectively, so as to provide the excitation control power and standby / startup power for the generator; during the circulating cooling, the cooling water is output from the external frequency conversion circulating pump, enters the wiring control box from one water cooling interface, is connected with the eccentric stator assembly through one heat exchange water pipe, is delivered into the cooling pipeline of the eccentric stator assembly, takes away the heat of the eccentric stator assembly, and then the heated water is returned to the other heat exchange water pipe in the wiring control box from the cooling pipeline and is output from the other water cooling interface to enter the external water-cooled plate heat exchanger, so that the water cooled after heat exchange is re-entered into the external frequency conversion circulating pump, thereby forming a closed-loop circulating water cooling pipeline, and these interfaces jointly connect the external key equipment with the internal control system and the cooling channel of the generator, so that the control board can intelligently adjust the excitation output, the charge-discharge energy storage of the storage battery and the flow of the frequency conversion circulating pump according to the data of the environmental parameter acquisition module, thereby realizing the stable power output in cooperation and guaranteeing the reliable operation of the generator in the complex ship environment.

[0012] The rear end cover comprises a fixed ring plate and a rear end plate, a plurality of electric push rods are fixed on the rear side of the rear end plate, an execution control module is electrically connected with the electric push rods, and the execution control module drives the electric push rods to move, a bearing one is arranged at the middle position of the front side of the rear end plate, a wind guide ring extending to the front side of the generator shell is arranged on the outer side of the rear end plate, a sealing ring is slidably arranged between the wind guide ring and the annular ventilation grille, the telescopic ends of the plurality of electric push rods all pass through the rear end plate and are fixedly connected with the sealing ring, the annular ventilation grille and a plurality of circumferentially distributed bolt columns are arranged between the fixed ring plate and the rear end plate, the plurality of bolt columns are located on the inner side of the annular ventilation grille, the outer diameter of the fixed ring plate is equal to the outer diameter of the annular ventilation grille, and the fixed ring plate and the rear end plate are arranged on the rear side of the rear end mounting flange through the plurality of bolt columns. The front end cover is arranged on the front side of the front side mounting flange through locking bolts, and a bearing two is arranged at the middle position of the rear side of the front end cover.

[0013] With the above structure, the rear end cover is stably mounted on the mounting flange on the rear side of the generator shell through the fixed ring plate and the rear end plate and by means of the bolt columns and the fixing bolts, thereby forming reliable rear end sealing and support; the bearing one is used for supporting the rear end of the rotating shaft of the rotor, thereby ensuring smooth rotation; the wind guide ring on the outer side of the rear end plate guides and blows the hot air delivered from the centrifugal fan to the outer side of the generator shell, so as to form a hot air curtain with anti-corrosion effect; the annular ventilation grille between the fixed ring plate and the rear end plate ensures smooth passage of cooling air flow, the telescopic ends of the electric push rods push the sealing ring to slide between the wind guide ring and the annular ventilation grille, after the power generation is stopped, the sealing ring moves to the front side of the annular ventilation grille, cooperates with the wind guide ring and the fixed ring plate to close the air outlet, thereby avoiding the entry of salt mist and moisture into the interior when the power generation is stopped, the front end cover is mounted on the front side mounting flange through locking bolts, and the bearing two arranged behind the front end cover is used for supporting the front end of the rotating shaft of the rotor, thereby completing the axial positioning and sealing of the rotor together with the rear end cover, thereby providing a solid mechanical structure foundation for the stable operation of the generator.

[0014] The eccentric stator assembly comprises six stator cores, the centers of the inner circle and the outer circle of the stator core do not coincide, forming an eccentric stator structure, a radial air duct is formed between two adjacent stator cores, a plurality of circumferentially distributed arc-shaped pipes are arranged between the two adjacent stator cores, through holes are formed on the front and back sides of the arc-shaped pipe, and the two through holes are symmetrically arranged, a plurality of circumferentially distributed limiting groups are formed on the outer side of the stator core, each limiting group is composed of two limiting grooves, the position and shape of the limiting groove are matched with the limiting protrusions, a plurality of axially arranged pin holes are formed on the stator core, the number and position of the pin holes are matched with the limiting groups, and the pin holes are located between the two limiting grooves of the same limiting group, the number and position of the arc-shaped pipes are matched with the pin holes, and the axis of the through hole of the arc-shaped pipe is coaxial with the axis of the pin hole at the corresponding position, the six stator cores are connected by a plurality of through-core screws passing through the pin holes, and the through-core screws pass through the two through holes of the arc-shaped pipe at the corresponding position, a plurality of axial ventilation holes one are formed in the inside of the stator core, the radial air duct is in communication with the axial ventilation hole one, the stator core at the most front side abuts against the blocking ring, the inner diameter of the blocking ring is greater than the distance between the outermost side of the axial ventilation hole one and the center of the outer circle of the stator core, the stator core at the most rear side abuts against the fixed ring plate, the inner diameter of the fixed ring plate is equal to the inner diameter of the blocking ring, a plurality of stator slots are formed on the inner side of the stator core, and a stator winding is arranged in the stator slot.

[0015] With the above structure, the six stator cores form an eccentric structure due to the non-coincidence of the centers of the inner circle and the outer circle, and they are tightly connected as a whole by the through-core screws passing through the pin holes and simultaneously passing through the two through holes of the corresponding arc-shaped pipe; the eccentric stator assembly is circumferentially positioned and fixed by the engagement of the limiting groups on the outer side with the limiting protrusions, and the axial ends thereof abut against the blocking ring in front and the fixed ring plate at the rear, respectively, wherein the inner diameters of the blocking ring and the fixed ring plate are equal and greater than the distance between the outermost side of the axial ventilation hole one and the center of the outer circle of the stator core, thereby ensuring the smoothness of the cooling air duct and the axial compression of the assembly; in operation, the radial air duct formed between the adjacent stator cores is in communication with the plurality of axial ventilation holes one formed in each core, the filtered air input from outside enters through the plurality of axial ventilation holes one in sequence, and enters the radial air duct through the plurality of axial ventilation holes one, and enters the air gap through the radial air duct, thereby forming a high-efficiency composite cooling air path, which, in combination with the forced ventilation driven by the centrifugal fan, can simultaneously perform radial and axial heat dissipation on the stator core, and the air for cooling the rotor and the stator core is sucked away; In the motor with uniform air gap, due to the existence of the stator tooth slot, the distribution of the magnetic field in the air gap is not sinusoidal enough, which can generate large tooth slot torque and magnetic resistance torque pulsation, which can cause torque fluctuation, efficiency reduction, noise generation, through the eccentric air gap structure, the gradual change of the air gap from small to large can make the permeance change more gently when the rotor is at different positions, and the air gap permeance changes periodically along the circumferential direction (the permeance is maximum at the minimum air gap, and the permeance is minimum at the maximum air gap), the periodic change of the permeance can modulate the rotor excitation magnetic field, which can selectively weaken or change the specific harmonic component in the air gap magnetic field, and promote the flow of air in the radial air duct; finally, the stator winding embedded in the stator slot on the inner side of the stator core interacts with the rotor to complete the electromechanical energy conversion.

[0016] Each wire bar of the stator winding is composed of a plurality of solid flat copper wires and a plurality of hollow profiled copper pipes arranged alternately, the end portions of the hollow profiled copper pipes are connected by U-shaped copper jumper pipes, and the two ends of the hollow profiled copper pipes are respectively connected into a cooling liquid inlet manifold and a cooling liquid outlet manifold, and the cooling liquid inlet manifold and the cooling liquid outlet manifold are respectively connected with two heat exchange water pipes through pipelines extending into the terminal control box.

[0017] With the above structure, each wire bar of the stator winding is composed of a plurality of solid flat copper wires and a plurality of hollow profiled copper pipes arranged alternately, the solid flat copper wires bear the core function of electricity conduction and power generation, and the alternately distributed hollow profiled copper pipes are embedded in the winding as direct cooling channels; the end portions of the hollow profiled copper pipes are connected by U-shaped copper jumper pipes, and are finally connected into a cooling liquid inlet manifold and a cooling liquid outlet manifold, which are respectively connected with two heat exchange water pipes through pipelines extending into the terminal control box, and cooperate with an external variable frequency circulating pump and a water-cooled plate heat exchanger to form a closed internal circulation liquid cooling system, so that the cooling liquid can directly flow through the heating parts of the winding for efficient heat exchange, which significantly improves the heat dissipation capacity and current carrying density of the stator winding, thereby ensuring the temperature stability and electrical reliability of the generator under continuous high load operation.

[0018] A plurality of axial ventilation holes are formed on the rotor, a plurality of rows of radial slots are formed on the outer side of the rotor, the excitation winding of the rotor is electrically connected with the terminal control box, the rear end of the rotating shaft of the rotor is fixedly arranged inside the inner ring of bearing one, the front side of the rotating shaft of the rotor is fixedly arranged on bearing two, and the rotating shaft of the rotor penetrates through the front end cover.

[0019] With the above structure, the rear end of the rotating shaft of the rotor is fixedly arranged inside the inner ring of bearing one, and the front side is fixedly arranged on bearing two and passes through the front end cover, so that stable and concentric rotation support is realized by the front and rear bearings; the several rows of radial grooves arranged on the outer side of the rotor and the several axial air vents two inside the rotor jointly form an internal cooling air duct, and cooperate with the eccentric circular structure of the stator core to strengthen the heat dissipation of the rotor body under the driving of the centrifugal fan; at the same time, the excitation winding on the rotor is electrically connected with the external excitation cabinet through the wiring control box, and receives controllable excitation current, so as to interact with the stator winding in the eccentric stator assembly during rotation, generate induced electromotive force, and complete the conversion of mechanical energy to electrical energy. Therefore, the rotor integrates rotation driving, internal air cooling and electromagnetic excitation functions, and is a core moving part for realizing efficient and stable power generation of the generator.

[0020] The environmental parameter acquisition module includes temperature sensors, salt mist concentration sensors and humidity sensors arranged in the cabin, vibration acceleration sensors arranged on the generator body, and PT100 temperature sensors embedded in the stator winding, responsible for real-time acquisition of the physical state information of the generator itself and its operating environment, converting various sensor signals into digital signals recognizable by the central processing module, and forming a state perception network to provide a data basis for intelligent control and protection decisions.

[0021] With the above structure, the temperature sensors, salt mist concentration sensors and humidity sensors arranged in the cabin continuously monitor the temperature, humidity and corrosive medium concentration of the generator operating environment, while the vibration acceleration sensors arranged on the generator body and the PT100 temperature sensors embedded in the stator winding real-time collect the mechanical vibration state and core heating site temperature of the generator itself; all sensors real-time collect physical state information and convert it into standard digital signals recognizable by the central processing module, together forming a state perception network, thereby providing accurate and reliable data basis for the central processing module to make intelligent cooling control, fault warning and protection decisions.

[0022] The central processing module receives and processes data from various sensors in real time based on the data of the environmental parameter acquisition module, establishes a generator thermal model and a vibration state model in combination with the operating conditions of the generator, performs comprehensive analysis, judgment and decision-making, and issues instructions to the execution control module, and processes state information from the external excitation cabinet and the external storage battery, coordinates power generation, excitation and standby power management, and ensures the stability of the power supply link.

[0023] With the above structure, based on the real-time data provided by the environmental parameter acquisition module, the information from each sensor is received and processed, and the thermal model and vibration state model of the generator are dynamically established in combination with the operating conditions of the generator; through comprehensive analysis of these multi-source information and based on adaptive control logic, control instructions are issued to the execution control module, and the cooling system is optimized: according to the winding temperature, environmental temperature and humidity, the optimal heat dissipation requirement is dynamically calculated, and control signals for adjusting the rotating speed of the external variable frequency circulating pump and the efficiency of the water-cooled plate heat exchanger are generated; operation protection strategy: analyze vibration data, identify abnormal spectrum; monitor salt mist concentration, evaluate corrosion risk level, when the data exceeds the preset threshold, trigger the corresponding warning or protection sequence; Collaborate with external systems: process status information from external excitation cabinets and external batteries, coordinate power generation, excitation and standby power management, and ensure the stability of the power supply link.

[0024] The execution control module is responsible for executing the control instructions issued by the central processing module, converting digital control signals into physical operations on each execution mechanism, and achieving active adjustment and protective intervention on the operating state of the generator.

[0025] With the above structure, the execution control module receives control instructions from the central processing module and converts these digital control signals into physical operations on each external execution mechanism; through the output of analog signals or digital communication protocols by the execution control module, the operating frequency of the external variable frequency circulating pump is adjusted, thereby changing the flow rate of the cooling liquid flowing through the hollow profile copper pipe in the stator winding; at the same time, the bypass valve or fan of the water-cooled plate heat exchanger is controlled to adjust the heat dissipation intensity, and the excitation output of the external excitation cabinet and the charging and discharging process of the external battery are controlled, through the power transmission interface of the wiring control box, the excitation current setting instruction is sent to the external excitation cabinet to control the magnetic field strength of the rotor; the charging and discharging logic of the external battery is managed, thereby realizing real-time optimization and protective intervention in abnormal conditions of the operating state of the generator.

[0026] The human-computer interaction module provides intuitive state display, parameter setting, alarm management and historical data query functions; State display: real-time display of all key parameters of the generator in a graphical manner: temperature, vibration value, environmental humidity, salt mist concentration, cooling liquid flow rate / temperature, voltage and current; Alarm and event recording: clearly classified display of real-time alarm information, and recording of all events and operation logs, supporting fault backtracking analysis; Parameter setting and mode selection: allow staff to modify control set values and select operating modes; Remote interface: usually provides a standard communication interface supporting MODBUS RTU / TCP protocol, and can connect all monitoring data to the ship control system to realize remote monitoring and centralized management.

[0027] With the above structure, the module displays all key parameters of the generator in real time in a graphical manner on a local or remote interface through a state display function; at the same time, the alarm and event recording function clearly classifies and displays real-time alarm information, and automatically records all events and operation logs, supporting fault backtracking analysis; in addition, the staff can modify the control set value and switch the operation mode through the parameter setting and mode selection function; the module also connects all monitoring data to the ship control system through a standard communication interface supporting the MODBUS RTU / TCP protocol, so as to realize remote monitoring and centralized management of the motor operating state, and provide monitoring, interaction and management means for the operator.

[0028] Compared with the prior art, the marine generator based on environmental parameters has the following advantages: 1. Efficient heat dissipation of the core heating parts of the generator and active moisture and salt mist protection of the outside of the shell are realized through internal air cooling driven by a centrifugal fan, direct liquid cooling of the stator winding embedded with hollow copper pipes, and a corrosion-resistant external hot air curtain formed by the rear end cover and the air guide ring, so as to improve the durability and operation stability of the equipment in harsh marine environments.

[0029] 2. The limiting protrusions and the retaining ring of the eccentric stator assembly are firmly fixed in position, the shock-absorbing base effectively buffers the vibration of the ship, the front and rear end covers are designed in a modular manner for easy disassembly and maintenance, and the lifting lugs facilitate handling, so that the overall structure is solid and convenient to maintain, ensuring long-term reliable operation of the generator under complex working conditions and low maintenance cost throughout the life cycle.

[0030] 3. Through the intelligent control system composed of an environmental parameter acquisition module, a central processing module, an execution control module and a human-computer interaction module, the environment and the body state can be monitored in real time, the cooling power and the operating parameters can be adjusted adaptively, predictive maintenance and remote centralized monitoring can be realized, so that the generator is upgraded from a passive operating device to a key power unit that can intelligently respond to environmental changes, ensure the stability of the power supply link, and support intelligent management of the ship. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the present application.

[0032] Figure 2 is a schematic diagram of the structure of the generator housing in the present application.

[0033] Figure 3 is a schematic diagram of the structure of the rear end cover in the present application.

[0034] Figure 4 is a schematic diagram of the structure of part of the components in the present application.

[0035] Figure 5is a control logic flowchart of the present application.

[0036] Figure 6 is a control system module block diagram of the present application.

[0037] Figure 7 is an eccentric structure installation schematic diagram of the present application.

[0038] Figure 8 is a structure schematic diagram of the rotor in the present application.

[0039] In the figure, 1, rear end cover; 2, generator housing; 3, damping base; 4, front end cover; 5, rotor; 6, wiring control box; 7, lifting lug; 8, power transmission interface; 9, water cooling interface; 10, air cooling interface; 11, blocking ring; 12, limiting convex strip; 13, mounting flange; 14, closing ring; 15, fixed ring plate; 16, rear end plate; 17, bolt column; 18, annular ventilation grille; 19, bearing one; 20, wind guide ring; 21, limiting groove; 22, radial air duct; 23, axial ventilation hole one; 24, centrifugal fan; 25, stator winding; 26, stator slot; 27, stator core; 28, electric push rod; 29, arc-shaped pipe; 30, pin hole; 31, radial slot; 32, axial ventilation hole two. DETAILED DESCRIPTION

[0040] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0041] As shown in Figure 1 - Figure 8 The marine generator based on environmental parameters includes a generator housing 2, the outer side of the generator housing 2 is provided with an air cooling interface 10, the air cooling interface 10 is connected with an external filter, the outer side of the upper end of the generator housing 2 is provided with a wiring control box 6, the inside of the wiring control box 6 is provided with a control board, the wiring control box 6 is connected with an external storage battery, an external excitation cabinet, an external frequency conversion circulating pump and a water-cooled plate heat exchanger respectively, the generator housing 2 is detachably provided with an eccentric stator assembly, the front and rear sides of the generator housing 2 are respectively detachably provided with a front end cover 4 and a rear end cover 1, the rotor 5 is rotatably arranged between the front end cover 4 and the rear end cover 1, the rotor 5 is located on the inner side of the eccentric stator assembly, the axis of the rotor 5 is collinear with the outer side axis of the eccentric stator assembly, an uneven air gap is formed between the outer side of the rotor 5 and the inner side of the eccentric stator assembly, the rear side of the rotating shaft of the rotor 5 is provided with a centrifugal fan 24, and the centrifugal fan 24 is located in the inside of the rear end cover 1. The control board is provided with an environmental parameter acquisition module, a central processing module, an execution control module and a man-machine interaction module which are electrically connected with the control board.

[0042] In this embodiment, the rotor 5 inside the generator housing 2 rotates in the eccentric stator assembly, driving the centrifugal fan 24 behind the rotating shaft to rotate, the centrifugal fan 24 sucking air inside the generator housing 2, the air cooling interface 10 outside the generator housing 2 connecting the external filter to introduce filtered air for auxiliary air cooling, the filtered air passing through the rotor 5, the air gap and the eccentric stator assembly respectively, and taking away the heat on the rotor 5 and the eccentric stator assembly, the hot air after cooling being transported to the rear end cover 1 by the centrifugal fan 24 and then guided to the outside of the generator housing 2, forming a hot air barrier to isolate the humid air, keeping the outside of the generator housing 2 dry, avoiding salt mist and humid air corrosion of the generator housing 2, the frequency conversion circulating pump and the water-cooled plate heat exchanger being connected with the eccentric stator assembly through the wiring control box 6, cooling the eccentric stator assembly by circulating water cooling to ensure stable internal temperature, the control board in the wiring control box 6 monitoring environmental data (such as temperature and humidity) in real time through the environmental parameter acquisition module, the central processing module analyzing these data, and then automatically adjusting the frequency conversion circulating pump and the water-cooled plate heat exchanger connected outside through the execution control module to optimize the cooling efficiency, and combining the excitation cabinet to ensure stable power supply, and the man-machine interaction module providing state monitoring and operation interface, so as to realize reliable operation and protection in the marine environment.

[0043] The lower outside of the generator housing 2 is provided with two left and right symmetrical shock-absorbing bases 3, the upper outside of the generator housing 2 is provided with two front and rear symmetrical lifting lugs 7, the front and rear sides of the generator housing 2 are each provided with a mounting flange 13, the inner wall of the generator housing 2 is provided with a stop ring 11 and a plurality of limiting protrusions 12, and the stop ring 11 is located in front of the plurality of limiting protrusions 12.

[0044] In this embodiment, the left and right symmetrical shock-absorbing bases 3 below the generator housing 2 are used to absorb and buffer the vibration in the running and marine environment, ensuring the stability of the whole machine; the front and rear symmetrical lifting lugs 7 above the generator housing 2 provide reliable force points for lifting, carrying and maintaining; the mounting flanges 13 on the front and rear sides of the generator housing 2 are used to stably connect with the front end cover 4, the rear end cover 1 and other external structures; and the stop ring 11 on the inner wall of the generator housing 2 cooperates with the plurality of limiting protrusions 12 distributed in a circle at the rear to axially and circumferentially position and fix the detachable eccentric stator assembly inside, preventing displacement of the eccentric stator assembly in operation, thereby providing a basic guarantee for the overall structural stability, installation convenience and positioning and installation of the internal core components of the generator.

[0045] The wiring control box 6 is internally provided with two heat exchange water pipes, and the wiring control box 6 is provided with two power transmission interfaces 8 and two water cooling interfaces 9, one end of the two heat exchange water pipes is connected with the two water cooling interfaces 9 respectively, the two power transmission interfaces 8 are connected with an external excitation cabinet and an external storage battery respectively, and the two water cooling interfaces 9 are connected with an external variable frequency circulating pump and a water-cooled plate heat exchanger respectively.

[0046] In the embodiment, the two power transmission interfaces 8 on the wiring control box 6 are connected with the external excitation cabinet and the external storage battery for storing electricity respectively, so as to provide excitation control power and standby / startup power for the generator; when circulating cooling, the cooling water is output from the external variable frequency circulating pump, enters the wiring control box 6 from one water cooling interface 9, is connected with the eccentric stator assembly through one heat exchange water pipe, is transported into the cooling pipeline of the eccentric stator assembly, takes away the heat of the eccentric stator assembly, and then the heated water flows back to the other heat exchange water pipe in the wiring control box 6 and is output from the other water cooling interface 9 to enter the external water-cooled plate heat exchanger, so that the water cooled by heat exchange is re-entered into the external variable frequency circulating pump, thereby forming a closed loop circulating water cooling pipeline, and these interfaces jointly connect the external key equipment with the internal control system and the cooling channel of the generator, so that the control board can intelligently adjust the excitation output, the charge-discharge energy storage of the storage battery and the flow of the variable frequency circulating pump according to the data of the environmental parameter acquisition module, thereby realizing stable power output in cooperation and guaranteeing the reliable operation of the generator in a complex marine environment.

[0047] The rear end cover 1 comprises a fixed ring plate 15 and a rear end plate 16, a plurality of electric push rods 28 are fixed on the rear side of the rear end plate 16, the execution control module is electrically connected with the electric push rods 28, and the execution control module drives the electric push rods 28 to move, a bearing one 19 is arranged at the middle position of the front side of the rear end plate 16, a wind guide ring 20 extending to the front side of the generator shell 2 is arranged on the outer side of the rear end plate 16, a sealing ring 14 is slidably arranged between the wind guide ring 20 and the annular ventilation grille 18, the telescopic ends of the plurality of electric push rods 28 all pass through the rear end plate 16 and are fixedly connected with the sealing ring 14, the annular ventilation grille 18 and a plurality of circumferentially distributed bolt columns 17 are arranged between the fixed ring plate 15 and the rear end plate 16, the plurality of bolt columns 17 are located on the inner side of the annular ventilation grille 18, the outer diameter of the fixed ring plate 15 is equal to the outer diameter of the annular ventilation grille 18, and the fixed ring plate 15 and the rear end plate 16 are arranged on the rear side of the rear end mounting flange 13 through the plurality of bolt columns 17. The front end cover 4 is arranged on the front side of the mounting flange 13 on the front side through locking bolts, and a bearing two is arranged at the middle position of the rear side of the front end cover 4.

[0048] In this embodiment, the rear end cover 1 is fixedly installed on the mounting flange 13 at the rear side of the generator housing 2 through its fixing ring plate 15 and rear end plate 16, and uses the bolt column 17 and fixing bolt to form a reliable rear end sealing and support; the bearing one 19 is used for supporting the rear end of the rotating shaft of the rotor 5 to ensure smooth rotation; the air guide ring 20 outside the rear end plate 16 guides and blows the hot air delivered from the centrifugal fan 24 to the outside of the generator housing 2 to form a hot air curtain with anti-corrosion effect; the annular ventilation grille 18 between the fixing ring plate 15 and the rear end plate 16 ensures the smooth passage of cooling airflow; the telescopic end of the electric push rod 28 pushes the sealing ring 14 to slide between the air guide ring 20 and the annular ventilation grille 18; after the power generation is stopped, the sealing ring 14 moves to the front side of the annular ventilation grille 18, cooperates with the air guide ring 20 and the fixing ring plate 15 to close the air outlet, avoids the entry of salt mist and moisture into the inside when the power generation is stopped, and the front end cover 4 is installed on the front mounting flange 13 through locking bolts, and the bearing two arranged behind the front end cover 4 is used for supporting the front end of the rotating shaft of the rotor 5, and cooperates with the rear end cover 1 to complete the axial positioning and sealing of the rotor, thereby providing a solid mechanical structure foundation for the stable operation of the generator.

[0049] The eccentric stator assembly includes six stator cores 27, the centers of the inner circle and the outer circle of the stator core 27 are not coincident, forming an eccentric stator structure, a radial air duct 22 is formed between adjacent two stator cores 27, a plurality of circumferentially distributed arc-shaped pipes are arranged between adjacent two stator cores 27, through holes are formed on the front and back sides of the arc-shaped pipe, and the two through holes are symmetrically arranged, a plurality of circumferentially distributed limiting groups are formed on the outside of the stator core 27, each limiting group is composed of two limiting grooves 21, the position and shape of the limiting groove 21 are matched with the limiting protrusions 12, a plurality of axially arranged pin holes 30 are formed on the stator core 27, the number and position of the pin holes 30 are matched with the limiting groups, and the pin holes 30 are located between the two limiting grooves 21 of the same limiting group, the number and position of the arc-shaped pipes are matched with the pin holes 30, and the axis of the through hole of the arc-shaped pipe is coaxial with the axis of the corresponding position pin hole 30, the six stator cores 27 are connected through a plurality of through-hole screws passing through the pin holes 30, and the through-hole screws pass through the two through holes of the corresponding position arc-shaped pipe, a plurality of axial ventilation holes one 23 are formed in the inside of the stator core 27, the radial air duct 22 is communicated with the axial ventilation hole one 23, the frontmost stator core 27 abuts against the blocking ring 11, the inner diameter of the blocking ring 11 is greater than the distance between the outermost axial ventilation hole one 23 and the center of the outer circle of the stator core 27, the last stator core 27 abuts against the fixing ring plate 15, the inner diameter of the fixing ring plate 15 is equal to the inner diameter of the blocking ring 11, a plurality of stator slots 26 are formed on the inside of the stator core 27, and the stator slot 26 is provided with a stator winding 25.

[0050] In this embodiment, the six stator cores 27 form an eccentric structure because the centers of their inner and outer circles do not coincide, and they are fastened together by a through screw passing through the pin hole 30 and simultaneously passing through two through holes of the corresponding arc-shaped tube; the eccentric stator assembly is circumferentially positioned and fixed by the engagement of its outer limiting group with the limiting protrusions 12, and its axial ends respectively abut against the front stop ring 11 and the rear fixed ring plate 15, wherein the inner diameters of the stop ring 11 and the fixed ring plate 15 are equal and larger than the distance between the outermost side of the axial ventilation hole 23 and the center of the outer circle of the stator core 27, thereby ensuring the smoothness of the cooling air duct and the axial compression of the assembly; in operation, the radial air duct 22 formed between the adjacent stator cores 27 is connected with the plurality of axial ventilation holes 23 opened in each stator core, the filtered air input from outside enters through the plurality of axial ventilation holes 23 in sequence, enters the radial air duct 22 through the plurality of axial ventilation holes 23, and enters the air gap through the radial air duct 22, which together form a high-efficiency composite cooling air path, cooperating with the forced ventilation driven by the centrifugal fan 24, to simultaneously perform radial and axial heat dissipation on the stator core 27, and the air for cooling the rotor 5 and the stator core 27 is sucked away. In a motor with uniform air gap, due to the existence of stator tooth slots, the distribution of the magnetic field in the air gap is not sinusoidal enough, which will produce large tooth slot torque and magnetic resistance torque pulsation, which will lead to torque fluctuation, efficiency reduction, and noise generation. Through the eccentric air gap structure, the change of magnetic resistance can be smoothed, and the air gap gradually changes from small to large, so that the permeance change of the rotor at different positions is more gentle, and the air gap permeance changes periodically along the circumferential direction (the permeance is maximum at the minimum air gap, and the permeance is minimum at the maximum air gap). This periodic change of permeance will modulate the rotor excitation magnetic field, which can selectively weaken or change specific harmonic components in the air gap magnetic field, and promote the flow of air in the radial air duct 22; finally, the stator winding 25 embedded in the stator slot 26 inside the stator core 27 interacts with the rotor 5 to complete the electromechanical energy conversion.

[0051] Each wire bar of the stator winding 25 is composed of a plurality of solid flat copper wires and a plurality of hollow profiled copper tubes arranged alternately, the ends of the hollow profiled copper tubes are connected by U-shaped copper jumper pipes, and the two ends of the hollow profiled copper tubes respectively converge into a cooling liquid inlet manifold and a cooling liquid outlet manifold, which are connected with two heat exchange water pipes through pipelines extending into the terminal control box 6.

[0052] In the embodiment, each wire bar of the stator winding 25 is composed of a plurality of solid flat copper wires and a plurality of hollow profiled copper tubes arranged alternately, the solid flat copper wires undertake the core function of electric conduction and power generation, and the hollow profiled copper tubes arranged alternately are embedded in the winding as direct cooling channels; the end portions of the hollow profiled copper tubes are connected through U-shaped copper jumper pipes by welding, and are finally gathered into a cooling liquid inlet manifold and a cooling liquid outlet manifold, which are connected with two heat exchange water pipes through pipelines extending into the terminal control box 6, and cooperate with an external variable frequency circulating pump and a water-cooled plate heat exchanger to form a closed internal circulation liquid cooling system, so that the cooling liquid can directly flow through the heating parts of the winding for efficient heat exchange, thereby significantly improving the heat dissipation capacity and current carrying density of the stator winding, and ensuring the temperature stability and electrical reliability of the generator under continuous high load operation.

[0053] The rotor 5 is provided with a plurality of axial ventilation holes 32, a plurality of rows of radial grooves 31 are formed on the outer side of the rotor 5, the excitation winding of the rotor 5 is electrically connected with the terminal control box, the rear end of the rotating shaft of the rotor 5 is fixedly arranged in the inner ring of the bearing I 19, the front side of the rotating shaft of the rotor 5 is fixedly arranged on the bearing II, and the rotating shaft of the rotor 5 penetrates through the front end cover 4.

[0054] In the embodiment, the rear end of the rotating shaft of the rotor 5 is fixedly arranged in the inner ring of the bearing I 19, and the front side is fixedly arranged on the bearing II and penetrates through the front end cover 4, so that stable and concentric rotary support is realized by the front and rear bearings; the plurality of rows of radial grooves 31 formed on the outer side of the rotor 5 and the plurality of axial ventilation holes 32 in the rotor 5 together form an internal cooling air duct, and cooperate with the eccentric circle structure of the stator core 27 to strengthen the heat dissipation of the rotor body under the drive of the centrifugal fan 24; at the same time, the excitation winding on the rotor 5 is electrically connected with the external excitation cabinet through the terminal control box 6, and receives controllable excitation current, so as to interact with the stator winding 25 in the eccentric stator assembly during rotation, generate induced electromotive force, and complete the conversion of mechanical energy to electrical energy. Therefore, the rotor 5 integrates the functions of rotary drive, internal air cooling and electromagnetic excitation, and is the core moving part for realizing efficient and stable power generation of the generator.

[0055] The environmental parameter acquisition module includes temperature sensors, salt mist concentration sensors and humidity sensors arranged in the cabin, vibration acceleration sensors arranged on the generator body, and PT100 temperature sensors embedded in the stator winding, which are responsible for real-time acquisition of the physical state information of the generator itself and its operating environment, convert various sensor signals into digital signals recognizable by the central processing module, form a state perception network, and provide a data basis for intelligent control and protection decision.

[0056] In this embodiment, the temperature sensor, salt mist concentration sensor and humidity sensor arranged in the cabin continuously monitor the temperature and humidity of the generator operating environment and the concentration of corrosive medium, while the vibration acceleration sensor arranged in the generator body and the PT100 temperature sensor embedded in the stator winding real-time collect the mechanical vibration state and core heating part temperature of the generator; all sensors real-time collect physical state information and convert it into standard digital signals recognizable by the central processing module, together forming a state perception network, thereby providing accurate and reliable data basis for the central processing module to make intelligent cooling control, fault warning and protection decisions.

[0057] The central processing module receives and processes data from various sensors in real time based on the data of the environmental parameter acquisition module, establishes a generator thermal model and vibration state model in combination with the generator operating conditions (such as output power), performs comprehensive analysis, judgment and decision-making, and issues instructions to the execution control module, and processes state information from external excitation cabinets and external storage batteries, coordinates power generation, excitation and standby power management, and ensures the stability of the power supply link.

[0058] In this embodiment, based on the real-time data provided by the environmental parameter acquisition module, information from various sensors is received and processed, and in combination with the generator operating conditions (such as output power), a thermal model and vibration state model of the generator are dynamically established; through comprehensive analysis of these multi-source information and based on adaptive control logic, control instructions are issued to the execution control module, and the cooling system is optimized: according to the winding temperature, environmental temperature and humidity, the optimal heat dissipation requirement is dynamically calculated, and control signals for adjusting the rotation speed of the external variable frequency circulating pump and the efficiency of the water-cooled plate heat exchanger are generated; operation protection strategy: analyze vibration data, identify abnormal spectrum; monitor salt mist concentration, evaluate corrosion risk level. When the data exceeds the preset threshold, trigger the corresponding warning or protection sequence; Collaborate with external systems: process state information from external excitation cabinets and external storage batteries, coordinate power generation, excitation and standby power management, and ensure the stability of the power supply link.

[0059] The execution control module is responsible for executing the control instructions issued by the central processing module, converting digital control signals into physical operations on various actuators, and achieving active adjustment and protective intervention on the generator operating state.

[0060] In this embodiment, the execution control module receives control instructions from the central processing module and converts these digital control signals into physical operations on various external actuators; through the output of analog signals or digital communication protocols by the execution control module, the operating frequency of the external variable frequency circulating pump is adjusted, thereby changing the flow rate of the cooling liquid flowing through the hollow profile copper tube in the stator winding; at the same time, the bypass valve or fan of the water-cooled plate heat exchanger is controlled to adjust the heat dissipation intensity, and the excitation output of the external excitation cabinet and the charge-discharge process of the external battery are controlled, the excitation current setting instruction is sent to the external excitation cabinet through the power transmission interface 8 of the wiring control box 6, the magnetic field intensity of the rotor 5 is controlled, the charge-discharge logic of the external battery is managed, and the real-time optimization of the generator operating state and the protective intervention in abnormal conditions are realized.

[0061] The man-machine interaction module provides intuitive state display, parameter setting, alarm management and historical data query functions; State display: real-time display of all key parameters of the generator (temperature, vibration value, environmental humidity, salt mist concentration, cooling liquid flow rate / temperature, voltage and current, etc.) in a graphical manner; Alarm and event recording: clearly classified display of real-time alarm information (such as "stator winding overtemperature" and "vibration exceeds standard"), and recording of all events and operation logs, supporting fault backtracking analysis; Parameter setting and mode selection: allowing staff to modify control set values and select operating modes; Remote interface: through the standard communication interface supporting MODBUS RTU / TCP protocol, all monitoring data is connected to the ship centralized control system, realizing remote monitoring and centralized management of the generator operating state.

[0062] In this embodiment, the module displays all key parameters of the generator in real time on the local or remote interface in a graphical manner through the state display function; at the same time, its alarm and event recording function clearly classifies and displays real-time alarm information, and automatically records all events and operation logs, supporting fault backtracking analysis; in addition, staff can modify control set values and switch operating modes through the parameter setting and mode selection function; the module connects all monitoring data to the ship centralized control system through the standard communication interface supporting MODBUS RTU / TCP protocol, thereby realizing remote monitoring and centralized management, and providing monitoring, interaction and management means for operators.

[0063] The working principle of the application is as follows: after the generator is started, the rotor 5 rotates in the eccentric stator assembly to generate electricity, and at the same time, drives the centrifugal fan 24 at the rear side to rotate. The centrifugal fan 24 sucks the air inside the generator, and the cooling air purified by the external filter is introduced from the air cooling interface 10 on the outside of the generator shell 2. The filtered air passes through the axial air hole two 32 on the rotor 5, the uneven air gap formed by the rotor 5 and the stator core 27, the axial air hole one 23 of the stator core 27 itself, and the radial air duct 22 between the adjacent stator cores 27, and carries away the heat of the rotor 5 and the stator core 27, thereby completing the air cooling heat dissipation. The heated air is transported to the rear end cover 1 by the centrifugal fan 24, and is guided by the air guide ring 20 to blow to the outside surface of the generator shell 2, forming a hot air barrier that isolates salt mist and humid air, keeping the outside of the machine dry, at the same time, the water cooling system is started: the external variable frequency circulating pump pumps the cooling water into the hollow special-shaped copper pipe in the stator winding 25 wire rod through the water cooling interface 9 of the wiring control box 6, a heat exchange water pipe and pipeline, directly carries away the winding heat, and the heated cooling water returns to the wiring control box 6 through the cooling liquid outlet manifold, pipeline, another heat exchange water pipe, enters the external water-cooled plate heat exchanger for cooling through another water cooling interface 9, and finally returns to the external variable frequency circulating pump, thereby forming a closed loop liquid cooling to control the temperature of the stator winding 25. The whole process is intelligently controlled by the control board in the wiring control box 6: the environmental parameter acquisition module collects data in real time; the central processing module comprehensively analyzes the data and the generator operation condition, establishes a heat and vibration model and makes decisions; the execution control module adjusts the flow of the external variable frequency circulating pump, the heat dissipation intensity of the water-cooled plate heat exchanger and the excitation output of the external excitation cabinet according to the decisions, and manages the external storage battery; the man-machine interaction module provides full state monitoring and interaction interface. In addition, when the power generation is stopped, a plurality of electric push rods 28 on the rear end cover 1 act to push the closed ring 14 to slide in front of the annular ventilation grille 18, closing the air outlet to prevent moisture from entering. The generator optimizes the magnetic field and air duct through the eccentric stator assembly structure, and combines forced air cooling, direct liquid cooling, intelligent environmental control and sealing during shutdown, etc., to ensure high reliability and long service life operation in complex marine environments.

[0064] In summary, the internal air cooling driven by the centrifugal fan 24, the direct liquid cooling of the stator winding 25 embedded with the hollow copper pipe, and the anticorrosion external hot air curtain formed by the rear end cover 1 and the air guide ring 20 realize efficient heat dissipation of the core heating parts of the generator and active protection of the generator shell 2 against moisture and salt mist outside, thereby improving the durability and operation stability of the equipment in harsh marine environments. The limiting protrusions 12 of the eccentric stator assembly and the retaining ring 11 are firmly positioned, the damping base 3 effectively buffers the ship vibration, the front and rear end covers are designed in a modular manner for easy disassembly and maintenance, the lifting lugs 7 facilitate handling, the overall structure is firm and convenient to maintain, and the long-term reliable operation of the generator in complex conditions and the low maintenance cost throughout the life cycle are ensured.

[0065] Through the intelligent control system composed of the environment parameter acquisition module, the central processing module, the execution control module and the man-machine interaction module, the environment and the body state can be monitored in real time, the cooling power and the operation parameters can be adjusted adaptively, the predictive maintenance and the remote centralized monitoring can be realized, so that the generator is upgraded from a passive operation device to a key power unit which can intelligently cope with environmental changes, ensure the stability of the power supply link and support the intelligent management of the ship.

[0066] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A marine generator based on environmental parameters, comprising a generator housing (2), characterized in that, The generator housing (2) has an air-cooling interface (10) on its outer side, which is connected to an external filter. The upper outer side of the generator housing (2) has a wiring control box (6). The wiring control box (6) contains a control board and two hot water exchange pipes. The wiring control box (6) is connected to an external battery, an external excitation cabinet, an external variable frequency circulating pump, and an external water-cooled plate heat exchanger. The generator housing (2) has a detachable eccentric stator assembly inside, which includes six stator cores (27). The inner circle of the stator core (27) is connected to the outer circle of the stator core (27). The centers of the circles do not coincide, forming an eccentric stator structure. The front and rear sides of the generator housing (2) are respectively provided with a front cover (4) and a rear cover (1). A rotor (5) is rotatably provided between the front cover (4) and the rear cover (1). The rotor (5) is located inside the eccentric stator assembly. The axis of the rotor (5) is collinear with the outer axis of the eccentric stator assembly. An uneven air gap is formed between the outer side of the rotor (5) and the inner side of the eccentric stator assembly. A centrifugal fan (24) is provided behind the shaft of the rotor (5). The centrifugal fan (24) is located inside the rear cover (1). The control board is equipped with an environmental parameter acquisition module, a central processing module, an execution control module, and a human-computer interaction module that are electrically connected to it. The rear end cover (1) includes a fixing ring plate (15) and a rear end plate (16), and the outer side of the rear end plate (16) is provided with an air guide ring (20) extending towards the front side of the generator housing (2).

2. A marine generator based on environmental parameters according to claim 1, characterized in that, Two shock-absorbing bases (3) are provided on the lower outer side of the generator housing (2). Two lifting lugs (7) are provided on the upper outer side of the generator housing (2). Mounting flanges (13) are provided on both the front and rear sides of the generator housing (2). A retaining ring (11) and several limiting protrusions (12) are provided on the inner wall of the generator housing (2). The retaining ring (11) is located in front of the several limiting protrusions (12).

3. A marine generator based on environmental parameters according to claim 2, characterized in that, The wiring control box (6) is provided with two power transmission interfaces (8) and two water cooling interfaces (9). One end of the two hot water exchange pipes is connected to one end of the two water cooling interfaces (9) that extends into the wiring control box (6). The two power transmission interfaces (8) are connected to the external excitation cabinet and the external storage battery, respectively. The two water cooling interfaces (9) are connected to the external frequency conversion circulating pump and the water-cooled plate heat exchanger, respectively.

4. A marine generator based on environmental parameters according to claim 3, characterized in that, The rear end cover (1) includes a fixed ring plate (15) and a rear end plate (16). Several electric push rods (28) are fixed on the rear side of the rear end plate (16). The execution control module is electrically connected to the electric push rods (28), and the execution control module drives the electric push rods (28) to move. A bearing (19) is provided at the middle position of the front side of the rear end plate (16). An air guide ring (20) extending towards the front side of the generator housing (2) is provided on the outer side of the rear end plate (16). A closing ring (14) is slidably provided between the air guide ring (20) and the annular ventilation grille (18). The telescopic ends of the dry electric push rod (28) all pass through the rear end plate (16) and are fixedly connected to the closed ring (14). An annular ventilation grille (18) and several bolt columns (17) evenly distributed in a circle are provided between the fixed ring plate (15) and the rear end plate (16). Several bolt columns (17) are located inside the annular ventilation grille (18). The outer diameter of the fixed ring plate (15) is equal to the outer diameter of the annular ventilation grille (18). The fixed ring plate (15) and the rear end plate (16) are set behind the rear end mounting flange (13) by several bolt columns (17). The front cover (4) is set on the front side of the mounting flange (13) by locking bolts, and a bearing is provided at the middle position of the rear side of the front cover (4).

5. A marine generator based on environmental parameters according to claim 4, characterized in that, A radial air duct (22) is formed between two adjacent stator cores (27). Several circumferentially distributed arc-shaped tubes are provided between two adjacent stator cores (27). Through holes are opened on both the front and rear sides of the arc-shaped tubes, and the two through holes are symmetrically arranged. Several circumferentially distributed limiting groups are opened on the outer side of the stator cores (27). Each limiting group consists of two limiting grooves (21). The position and shape of the limiting grooves (21) match the limiting protrusions (12). Several axially arranged pin holes (30) are opened on the stator cores (27). The number and position of the pin holes (30) match the limiting groups. The pin holes (30) are located between the two limiting grooves (21) of the same limiting group. The number and position of the arc-shaped tubes match the pin holes (30). The axis of the through hole of the arc-shaped tube matches the corresponding pin hole (30). The six stator cores (27) are coaxial and connected by a number of through-bolts passing through pin holes (30). The through-bolts pass through two through holes of the corresponding arc tube. The stator core (27) has a number of axial ventilation holes (23) inside. The radial air ducts (22) are connected to the axial ventilation holes (23). The stator core (27) at the front abuts against the retaining ring (11). The inner diameter of the retaining ring (11) is greater than the distance between the outermost edge of the axial ventilation hole (23) and the center of the outer circle of the stator core (27). The stator core (27) at the back abuts against the fixing ring plate (15). The inner diameter of the fixing ring plate (15) is equal to the inner diameter of the retaining ring (11). The stator core (27) has a number of stator slots (26) inside. The stator slots (26) have stator windings (25) inside.

6. A marine generator based on environmental parameters according to claim 5, characterized in that, Each bar of the stator winding (25) is composed of several solid flat copper wires and several hollow shaped copper tubes arranged alternately. The ends of the hollow shaped copper tubes are connected by welding through U-shaped copper jumpers. The two ends of the hollow shaped copper tubes are respectively merged into a coolant inlet manifold and a coolant outlet manifold. The coolant inlet manifold and the coolant outlet manifold are respectively connected to two hot water exchange pipes through pipelines extending into the wiring control box (6).

7. A marine generator based on environmental parameters according to claim 6, characterized in that, The rotor (5) has several axial ventilation holes (32) and several rows of radial grooves (31) on the outside of the rotor (5). The excitation winding of the rotor (5) is electrically connected to the wiring control box. The rear end of the rotor (5) shaft is fixedly installed inside the inner ring of the bearing (19). The front side of the rotor (5) shaft is fixedly installed on the bearing (2), and the rotor (5) shaft passes through the front end cover (4).

8. A marine generator based on environmental parameters according to claim 7, characterized in that, The environmental parameter acquisition module includes temperature sensors, salt spray concentration sensors, and humidity sensors arranged in the cabin, as well as vibration acceleration sensors arranged in the generator body and PT100 temperature sensors embedded in the stator windings. It is responsible for collecting physical state information of the generator itself and its operating environment in real time, converting various sensor signals into digital signals that can be recognized by the central processing module, forming a state perception network, and providing a data basis for intelligent control and protection decisions. The central processing module receives and processes data from various sensors in real time based on data from the environmental parameter acquisition module. Combined with the generator's operating conditions, it establishes a generator thermal model and vibration state model, performs comprehensive analysis, judgment, and decision-making, issues instructions to the execution control module, processes status information from the external excitation cabinet and external battery, coordinates power generation, excitation, and backup power management, and ensures the stability of the power supply link.

9. A marine generator based on environmental parameters according to claim 8, characterized in that, The execution control module is responsible for executing the control commands issued by the central processing module, converting digital control signals into physical operations for each actuator, and realizing active adjustment and protective intervention of the generator's operating status.

10. A marine generator based on environmental parameters according to claim 9, characterized in that, The human-computer interaction module provides intuitive status display, parameter setting, alarm management, and historical data query functions; Status display: Displays all key generator parameters in real time in a graphical manner: temperature at various points, vibration value, ambient humidity, salt spray concentration, coolant flow / temperature, voltage and current; Alarms and Events: Clearly categorizes and displays real-time alarm information, and records all events and operation logs, supporting fault retrospective analysis; Parameter settings and mode selection: Allows staff to modify control settings and select operating modes; Remote Interface: Through a standard communication interface that supports the MODBUS RTU / TCP protocol, all monitoring data is connected to the ship's centralized control system to achieve remote monitoring and centralized management of the motor's operating status.

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