An energy-saving control system based on a jet lubrication system for fully rotating propellers

Abstract

The present invention discloses an energy-saving control system based on a jet lubrication system for an all-rotating propeller, comprising an all-rotating propeller control unit; the input end of the all-rotating propeller control unit is respectively connected to the lubricating oil temperature sensor and the motor speed sensor signal; the output end of the all-rotating propeller control unit is connected to an energy-saving control device for an all-rotating propeller lubrication system. Specifically, the present invention uses an energy-saving control device for an all-rotating propeller lubrication system to match an all-rotating propeller model running with actual parameters and an all-rotating propeller model running virtually, perform data fusion analysis, and derive corresponding control signals, and then transmit the corresponding control signals to a frequency converter respectively, and the frequency converter controls the motor speed to change the speed of the lubricating oil pump to adjust the flow rate at the outlet of the lubricating oil pump, thereby realizing the energy-saving function.

Description

Technical Field

[0001] The invention relates to the technical field of azimuth-rotating propellers, and in particular to an energy-saving control system based on a jet lubrication system for azimuth-rotating propellers. Background Art

[0002] As one of the main propulsion types of ships, the full-rotation rudder propeller has the following functions: the power from the main engine is transmitted to the upper gearbox through the shaft system, and then transmitted to the lower gearbox through a pair of bevel gears in the upper gearbox through the internal coupling, and then transmitted to the propeller shaft through a pair of bevel gears in the lower gearbox, and finally transmitted to the propeller by the propeller shaft. By using it in conjunction with the main engine's one-to-one centralized control device, the ship's free navigation and towing operations can be smoothly realized. The navigation and steering of the ship can be realized by changing the main engine's speed and the direction of the rudder propeller.

[0003] Chinese patent CN206458811 U discloses a combined jet immersion lubrication system for a fully rotary propeller. This system is a combined lubrication system that combines pressure jet lubrication and immersion lubrication functions. The upper gearbox adopts immersion lubrication when the propeller is not running, and pressure jet lubrication when the propeller is running; the lower gearbox adopts immersion lubrication. The utility model adopts a combination of pressure jet lubrication and immersion lubrication to lubricate the gears and bearings in the fully rotary propeller, reducing friction resistance and greatly improving the transmission efficiency of the gears, thereby improving the propulsion efficiency of the fully rotary propeller; reducing friction losses of bearings, gears and other components, which is beneficial to extending the service life of components and saving costs; and removing the heat generated by high-speed rotation through the flow and circulation of lubricating oil, which is beneficial to reducing the temperature when the system is running.

[0004] At present, azimuth propellers are generally equipped with a jet lubrication system for azimuth propellers to cool and lubricate gears. The jet lubrication is supplied by a fixed-displacement oil pump and an electric motor. When the propeller rotates at a low speed, it does not require full-flow lubricating oil for lubrication, which results in energy consumption. Summary of the invention

[0005] The purpose of the present invention is to solve the problems of the above-mentioned background technology and to propose an energy-saving control system based on a jet lubrication system for a fully-rotating propeller. By continuously monitoring the operating status and related parameters of the fully-rotating propeller, the relevant information of the propeller is obtained, and the relevant data is integrated and processed, the power of the lubrication system is controlled as the state of the propeller changes.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An energy-saving control system based on a jet lubrication system for an azimuth propeller comprises an azimuth propeller control unit; the input end of the azimuth propeller control unit is respectively connected to a lubricating oil temperature sensor and a motor speed sensor signal; the output end of the azimuth propeller control unit is connected to an energy-saving control device of the azimuth propeller lubrication system.

[0008] As a further solution of the present invention: the energy-saving control device of the azimuth propeller lubrication system is connected to the motor through a frequency converter.

[0009] As a further solution of the present invention: the azimuth propeller control unit is provided with an azimuth propeller model operating with actual parameters.

[0010] As a further solution of the present invention: a virtually operating azimuth propeller model is provided in the azimuth propeller control unit.

[0011] As a further solution of the present invention: the energy-saving control device of the azimuth propeller lubrication system is an industrial control computer, and the azimuth propeller control unit is a programmable logic controller.

[0012] As a further solution of the present invention: the motor is connected to a drive module, the motor includes an oil pump motor and a rotary motor, and the drive module includes a driver and a propeller.

[0013] As a further solution of the present invention: the lubricating oil pump motor corresponds to the driver, the output end of the driver is connected to the lubricating oil pump motor, the rotary motor corresponds to the propeller, and the output end of the propeller is connected to the rotary motor.

[0014] As a further solution of the present invention: the thruster is connected to an external interface.

[0015] As a further solution of the present invention: the lubricating oil temperature sensor is used to detect and obtain the lubricating oil temperature signal, the motor speed sensor is used to detect and obtain the motor speed signal, and the full-rotation propeller control unit establishes an full-rotation propeller model operating with actual parameters according to the collected operating status and parameters.

[0016] As a further solution of the present invention: the energy-saving control device of the full-rotation propeller lubrication system will perform matching operations and data fusion analysis on the full-rotation propeller model operating according to actual parameters and the full-rotation propeller model operating virtually, so as to increase or decrease the flow provided by the lubrication system.

[0017] Beneficial effects of the present invention: The present invention specifically uses the energy-saving control device of the full-rotation propeller lubrication system to match the full-rotation propeller model running with actual parameters and the full-rotation propeller model running virtually, and obtains corresponding control signals, and then transmits the corresponding control signals to the frequency converter respectively, and controls the motor speed through the frequency converter to change the speed of the lubricating oil pump to adjust the flow rate of the lubricating oil pump outlet, thereby realizing the energy-saving function;

[0018] This implementation method is simple and reliable, with a high degree of automation and low cost, and effectively reduces energy waste without increasing additional man-hours. When the fully-revolving propeller is running at full load, the lubricating oil pump works at full flow to lubricate the gears and bearings, reducing friction resistance and greatly improving the transmission efficiency of the gears, thereby improving the propulsion efficiency of the fully-revolving propeller. When the fully-revolving propeller is slowed down or operated passively, the lubricating oil pump works at a reduced flow rate to lubricate the gears and bearings, while reducing friction resistance and improving transmission efficiency. While reducing excessive energy use, the propulsion efficiency of the fully-revolving propeller is improved. Therefore, the present invention uses the energy-saving control device of the fully-revolving propeller lubrication system to control the power of the propeller jet lubrication system in real time to correspond to the power of the propeller, thereby reducing unnecessary energy waste and improving overall efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a structural block diagram of the present invention;

[0021] Figure 2 It is a system block diagram of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figure 1-2 As shown, the present invention is an energy-saving control system based on a jet lubrication system for an azimuth propeller, comprising an energy-saving control device for an azimuth propeller lubrication system, wherein the input end of the energy-saving control device for the azimuth propeller lubrication system is signal-connected to the azimuth propeller control unit;

[0025] The input end of the full-revolving propeller control unit is also respectively connected to the lubricating oil temperature sensor and the motor speed sensor signal; the output end of the full-revolving propeller control unit is connected to the energy-saving control device of the lubrication system of the full-revolving propeller, and the energy-saving control device of the lubrication system of the full-revolving propeller is connected to the motor through the frequency converter; its lubricating oil temperature sensor is used to detect and obtain the lubricating oil temperature signal, and its motor speed sensor is used to detect and obtain the motor speed signal. The lubricating oil temperature sensor transmits the obtained lubricating oil temperature signal and the motor speed sensor transmits the obtained motor speed signal to the full-revolving propeller control unit. The lubricating oil temperature signal and the motor speed signal are processed by the full-revolving propeller control unit and transmitted to the energy-saving control device of the lubrication system of the full-revolving propeller, and then the signal is transmitted to the frequency converter through the energy-saving control device of the lubrication system of the full-revolving propeller, so that the frequency converter changes the motor speed; the energy-saving control device of the lubrication system of the full-revolving propeller monitors the operating status of the lubricating oil temperature and the motor speed respectively through the full-revolving propeller control unit;

[0026] The full-revolving propeller control unit is used to collect lubricating oil temperature signals and motor speed signals, and then the full-revolving propeller control unit establishes a full-revolving propeller model operating with actual parameters according to the collected operating status and related parameters; a virtual full-revolving propeller model is established in the full-revolving propeller control unit, and the full-revolving propeller lubrication system energy-saving control device matches the full-revolving propeller model operating according to actual parameters with the virtual full-revolving propeller model, and performs data fusion analysis to increase or decrease the flow provided by the lubrication system;

[0027] The energy-saving control device of the azimuth propeller lubrication system is an industrial control computer, and the azimuth propeller control unit is a programmable logic controller;

[0028] The motor is connected to a driving module, the motor includes an oil pump motor and a rotary motor, the driving module includes a driver and a propeller, the oil pump motor corresponds to the driver, the output end of the driver is connected to the oil pump motor, the rotary motor corresponds to the propeller, and the output end of the propeller is connected to the rotary motor.

[0029] Example 2

[0030] An energy-saving control system based on a jet lubrication system for an all-rotating rudder propeller, the use method of the energy-saving control system comprising the following steps:

[0031] Step 1: The lubricating oil temperature sensor detects the lubricating oil temperature signal of the azimuth propeller when it is working, and the motor speed sensor detects the motor speed signal of the azimuth propeller when it is working, and then the obtained lubricating oil temperature signal and motor speed signal are transmitted to the azimuth propeller control unit;

[0032] Step 2: The azimuth propeller control unit establishes an azimuth propeller model operating with actual parameters according to the transmitted lubricating oil temperature signal and motor speed signal, and then transmits the established azimuth propeller model operating with actual parameters and the preset azimuth propeller model operating with virtual parameters to the azimuth propeller lubrication system energy-saving control device;

[0033] Step 3: The energy-saving control device of the full-rotation propeller lubrication system performs matching operations and data fusion analysis on the full-rotation propeller model running with actual parameters and the full-rotation propeller model running virtually, and obtains corresponding control signals. The corresponding control signals are then transmitted to the frequency converter respectively, and the frequency converter controls the motor speed to change the speed of the lubricating oil pump to adjust the flow rate at the outlet of the lubricating oil pump, thereby realizing the energy-saving function.

[0034] The working principle of the present invention is as follows: the temperature, speed and other detection sensors give signals, and the frequency converter controls the motor speed to change the speed of the lubricating oil pump to adjust the flow rate of the lubricating oil pump outlet, thereby realizing the energy-saving function. The implementation method is simple and reliable, with high automation and low cost. It effectively reduces energy waste without increasing additional labor hours. When the full-revolving propeller is running at full load, the lubricating oil pump works at full flow to lubricate the gears and bearings, reducing friction resistance and greatly improving the transmission efficiency of the gears, thereby improving the propulsion efficiency of the full-revolving propeller. When the full-revolving propeller is decelerated or passively operated, the lubricating oil pump works at a reduced flow rate to lubricate the gears and bearings, while reducing friction resistance and improving transmission efficiency. While reducing excessive use of energy, the propulsion efficiency of the full-revolving propeller is improved.

[0035] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An energy-saving control system based on a jet lubrication system for a fully rotating propeller, characterized in that: It includes an azimuth propeller control unit; the input end of the azimuth propeller control unit is respectively connected to the lubricating oil temperature sensor and the motor speed sensor signal; the output end of the azimuth propeller control unit is connected to the energy-saving control device of the azimuth propeller lubrication system; The lubricating oil temperature sensor is used to detect and obtain the lubricating oil temperature signal, the motor speed sensor is used to detect and obtain the motor speed signal, and the azimuth propeller control unit establishes an azimuth propeller model operating with actual parameters according to the collected operating status and parameters; The energy-saving control device for the lubrication system of the azimuth propeller performs matching calculations and data fusion analysis on the azimuth propeller model operating according to actual parameters and the azimuth propeller model operating virtually, so as to increase or decrease the flow rate provided by the lubrication system; The energy-saving control device of the azimuth propeller lubrication system is connected to the motor via a frequency converter; The azimuth propeller control unit is provided with an azimuth propeller model running with actual parameters.

2. The energy-saving control system based on the jet lubrication system for the fully rotating propeller according to claim 1 is characterized in that: A virtually running azimuth propeller model is arranged in the azimuth propeller control unit.

3. The energy-saving control system based on the jet lubrication system for the fully rotating propeller according to claim 1 is characterized in that: The energy-saving control device of the azimuth propeller lubrication system is an industrial control computer, and the azimuth propeller control unit is a programmable logic controller.

4. The energy-saving control system based on the jet lubrication system for the fully rotating propeller according to claim 1 is characterized in that: The motor is connected to the driving module, and the motor includes a lubricating oil pump motor and a rotary motor.

5. The energy-saving control system based on the jet lubrication system for the fully rotating propeller according to claim 4 is characterized in that: The lubricating oil pump motor corresponds to the driver, the output end of the driver is connected to the lubricating oil pump motor, the rotary motor corresponds to the propeller, and the output end of the propeller is connected to the rotary motor.

6. The energy-saving control system based on the jet lubrication system for the fully rotating propeller according to claim 5 is characterized in that: The thruster is connected to an external interface.

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