[0030] The present invention will now be further described in detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.
[0031] like figure 1 and figure 2 As shown, the heavy oil hybrid cooling system based on the variable-pitch propeller includes: a pitch control device, a control platform 14, and a main controller 13 wirelessly connected to the control platform 14; the pitch control device includes a variable-pitch propeller 10, a main controller 13. The pitch collector 18; the pitch collector 18 is installed on both sides of the blade 3 of the variable pitch propeller 10, and the pitch collector 18 is used to collect the real-time pitch value of the variable pitch propeller 10; the pitch collection The controller 18 is electrically connected to the main controller 13, and the main controller 13 is used to control the pitch value of the variable-pitch propeller 10; by controlling the output torque of the variable-pitch propeller 10, it is used to change the cooling of the variable-pitch propeller 10 Wind power to achieve system cooling.
[0032] The variable torque propeller is used to change the inclination angle of each blade 3 of the propeller to change the output torque, that is, the cooling wind force of the propeller can be changed under the condition of constant rotation speed.
[0033] It also includes a main controller 13 and a sub-controller 17, the main controller 13 and the sub-controller 17 are both independently developed, the sub-controller 17 obtains the real-time value of the pitch of the variable-pitch propeller 10, and the sub-controller 17 will The real-time value of the pitch of the pitch propeller 10 is input to the main controller 13, and the main controller 13 adjusts the pitch of the variable-pitch propeller 10 according to the real-time value of the pitch of the variable-pitch propeller 10 and the acquired real-time value of the cylinder temperature sensor.
[0034] The main controller 13 is the core module of the closed-loop control unit. It adopts and two embedded modules to achieve redundancy. The external adopts dual-channel bus technology to achieve redundancy of acquisition lines. It is equipped with two power supplies to achieve power supply redundancy. The design of bus and dual power supply improves the fault tolerance and enhances the reliability of the whole mechanism.
[0035] The main controller 13 is the core module of the closed-loop control unit. It adopts the Cortex-M7 embedded CPU, and the CANBUS bus technology is used externally for signal transmission with the sub-controller 17. The sub-controller 17 also adopts the Cortex-M4 embedded CPU, and the external adopts the With the CANBUS bus technology, the sub-controller 17 obtains the real-time value of the pitch of the variable-pitch propeller 10 .
[0036] The main controller 13 compares the set value of the pitch with the real-time value of the pitch, and sends an instruction to the sub-controller 17 to control the pitch control stepper motor 12, thereby adjusting the pitch. The control device includes a follow-up control mode and a non-follow-up control mode; When the regulator works normally, the system enters the follow-up control mode, the main controller 13 controls the adjustment of the pitch, and the sub-controller 17 is in the auxiliary state; when the main regulator fails, the system enters the non-follow-up control mode, so The main controller 13 shields the main regulator information, and the sub-controller 17 enters the main control state.
[0037] The main regulator forms a signal connection with the sub-controller 17 through the main controller 13, the main regulator inputs the pitch setting value to the main controller 13, the sub-controller 17 obtains the real-time value of the pitch of the controllable pitch propeller, and the main controller 13 compares The set value of the pitch and the real-time value of the pitch, send an instruction to the sub-controller 17 to control the pitch to control the stepping motor 12, so as to adjust the pitch.
[0038] When the main regulator fails, the main regulator and the main controller 13 disconnect the signal connection, the auxiliary regulator and the auxiliary controller 17 form a signal connection, and the auxiliary regulator inputs the pitch setting value to the auxiliary controller 17 to control the pitch control stepper motor 12 , thereby adjusting the pitch.
[0039]The main and auxiliary controllers are used to control the pitch, to prevent the phenomenon that the pitch cannot be adjusted due to the failure of a single controller, and to enhance the practicability and reliability of the mechanism. It realizes pitch control operation, simple and fast distributed, modular design, saves a lot of control cables, shortens the cycle of design, installation and debugging, and has obvious advantages in optimized management, predictive maintenance and preventive maintenance.
[0040] The system has two working states: the follow-up control mode and the non-follow-up control mode. In the follow-up control mode, the main regulator works normally, the main controller 13 has the right to control the pitch adjustment, and the sub-controller 17 is in the auxiliary state when the main regulator If the controller fails, the mechanism enters the non-follow-up control mode, the sub-controller 17 enters the main control state from the auxiliary state, and masters the control right of pitch adjustment. to the auxiliary state.
[0041] In the follow-up control mode, the closed-loop control unit composed of the main regulator, the main controller 13, the pitch collector 18, the sub-controller 17, and the pitch control stepping motor 12 works. Toggle the handle to drive the gear to rotate, so that the potentiometer outputs a signal to the main controller 13, and inputs the set value of the pitch to the main controller 13. The pitch collector 18 collects the real-time value of the pitch, and transmits the real-time value of the pitch to the sub-controller 17. The controller 13 receives the real-time value of the pitch from the sub-controller 17, makes a logical judgment on the real-time value of the pitch and the set value of the pitch, and sends an instruction to the sub-controller 17, and the sub-controller 17 supplies power to the pitch-control stepping motor 12 according to the instruction Or power off, trigger the pitch control stepper motor 12 to open or close, the pitch control stepper motor 12 controls the variable-torque propeller to rotate left or right, thereby adjusting the pitch, when the real-time value of the pitch is consistent with the set value of the pitch, the pitch control The stepping motor 12 stops working, and the pitch of the variable-torque propeller is fixed.
[0042] In the non-follow-up control mode, the standby control unit composed of the sub-controller 17, the pitch control stepper motor 12 and the button works. The pitch setting value is input through the button, the main controller 13 shields the information of the main regulator and gives up the pitch control right, the sub controller 17 receives the pitch setting value input from the button, and triggers the pitch control stepper motor 12 according to the pitch setting value. Open or close to adjust the pitch and change the operating state of the variable-torque propeller to change the driving situation of the ship.
[0043] By switching between the follow-up mode and the non-follow-up mode, it can be realized that when the main regulator fails, by switching to the non-follow-up mode, the sub-controller 17 controls the pitch adjustment, and the main controller 13 shields the main regulator information. The main regulator is isolated and repaired to ensure the normal operation of the cooling system.
[0044] It also includes an engine cylinder temperature sensor 16. The engine cylinder temperature sensor 16 adopts a PT100 sensor, which is independently developed. The engine cylinder temperature sensor 16 is installed on both sides of the engine cylinder block, and is connected to the secondary controller 17 and the main controller 13 at the same time. The main controller 13 is connected to the sub-controller 17, the main controller 13 and the sub-controller 17 are connected to the pitch control stepping motor 12 respectively, the wireless data transmission module 15 is respectively connected to the main controller 13 and the sub-controller 17, and the wireless The data transmission module 15 and the wireless control and control platform 14 realize real-time monitoring through wireless transmission technology.
[0045] The engine cylinder temperature sensor 16 is electrically connected to the main controller 13 and the secondary controller 17, and the engine cylinder temperature sensor 16 is used to collect the temperature of the engine cylinder and transmit it to the main controller 13 or/and The sub-controller 17, the main controller 13 or/and the sub-controller 17 trigger the pitch control stepper motor 12 according to the collected real-time temperature of the engine block, wherein the pitch control stepper motor 12 uses a 42BYGH40-401A stepper motor, through The pitch control stepper motor 12 controls the pitch value of the variable pitch propeller 10 .
[0046] The temperature of the engine cylinder block is detected in real time by the engine cylinder temperature sensor 16, and then the torque of the variable pitch propeller 10 is dynamically adjusted according to the temperature of the engine cylinder block, thereby dynamically adjusting the output air cooling of the variable pitch propeller 10 and cooling the engine.
[0047] The pitch value of the variable-pitch propeller 10 is measured by the pitch collector 18, wherein the pitch collector 18 adopts the SOKO-KIT electronic pitch ruler, and the sub-controller 17 obtains the real-time value of the pitch of the variable-pitch propeller 10 of the pitch collector 18 through the 232 serial port , when the pitch value of the variable-pitch propeller 10 is consistent with the set value, the pitch motor stops working, and the pitch of the variable-pitch propeller 10 is fixed, so that the engine cylinder temperature is maintained within the controllable range after the variable-pitch propeller 10 is cooled.
[0048] Also includes a display panel, the display panel obtains the state data of the control device from the main controller 13, checks and operates parameter settings through the display panel, and monitors the running state of the control device in real time, the main controller 13 adopts an embedded structure , the external adopts a dual-channel bus layout, and is equipped with dual power supplies, and the display panel includes a handle, a display and a button.
[0049] like figure 1 As shown, the variable pitch propeller 10 includes a rotating shaft 1, a first bevel gear 6 fixedly mounted on the rotating shaft 1, a second bevel gear 2 rotatably connected to the rotating shaft 1 and disposed opposite to the first bevel gear 6, sleeved on the The shaft hub 9 on the part of the rotating shaft 1 between the first bevel gear 6 and the second bevel gear 2 and rotatably connected with it, and the fixed shaft fixedly connected with the shaft hub 9 and perpendicular to the axial direction of the shaft hub 9, on the fixed shaft The propeller hub 4 that is rotatably connected with the propeller hub 4 is sleeved, and the fixed shaft part between the propeller hub 4 and the shaft hub 9 is sleeved with an elastic torsional deformation member 7, and the torsional deformation member 7 is respectively connected with the shaft hub 9 and the propeller hub. 4 is fixedly connected, a blade driving bevel gear 5 is fixedly installed on the propeller hub 4, and the opposite sides of the blade driving bevel gear 5 are respectively meshed with the first bevel gear 6 and the second bevel gear 2, and are away from the propeller hub 4. One side of the hub 9 is fixedly connected with the paddle 3 .
[0050] The paddle 3 is provided with two, which are distributed in a symmetrical structure. One side paddle 3 is provided with a paddle hub 4 that is fixedly connected to the paddle 3. The paddle 3 is sleeved on the paddle hub 4, and is fixedly connected to the paddle hub 4. The blade drive bevel gear 5, the fixed shaft fixedly connected with the hub 9, the torsional deformation member 7 disposed between the propeller hub 4 and the shaft hub 9, and the torsional deformation member 7 disposed on the side wall of the shaft hub 9 corresponding to the torsional deformation member 7. Sleeve 8.
[0051] like figure 2 As shown, the control device includes a main controller 13, a sub-controller 17, a wireless control control platform 14, a variable pitch gear 11, a pitch control stepper motor 12, a pitch collector 18, an engine cylinder temperature sensor 16, and a wireless data transmission module 15.
[0052] The pitch control stepper motor 12 is connected with the main controller 13 and the sub-controller 17. The main controller 13 and the sub-controller 17 trigger the pitch-control stepper motor 12 to adjust the pitch. The main controller 13 and the sub-controller 17, according to the instructions, Power is supplied to the pitch control stepping motor 12, and when the pitch meets the required value, the pitch of the variable-torque propeller is fixed.
[0053] The control display panel obtains the status data of the current control device from the main controller 13, monitors the running state of the control device in real time, and controls the controller to change the pitch through the wireless control device.
[0054] The pitch collector 18 is installed on both sides of the blade 3 of the variable-pitch propeller 10, and is connected with the sub-controller 17 and the main controller 13 at the same time, and the variable-pitch gear 11 is connected between the pitch-control stepping motor 12 and the rotating shaft 1 of the variable-pitch propeller 10. During the time, the pitch collector 18 is connected with the main controller 13 and the sub-controller 17. The pitch collector 18 collects the real-time value of the pitch and transmits it to the main controller 13 and the sub-controller 17. The main controller 13 and the sub-controller 17 are based on the The pitch collector 18 collects the real-time value of the pitch to control the pitch control stepping motor 12 .
[0055] The control display panel obtains the status data of the current control device from the main controller 13, checks and operates parameter settings through the display, and monitors the running state of the control device in real time. The main controller 13 performs data processing, signal transmission, output control, information storage, fault alarm, analyzes the current input information in real time, and sends out an alarm signal when an abnormal condition occurs, which is reflected on the display through the control display panel. The keyboard is used to input various parameters, and the input information can be displayed in the form of a curve.
[0056] The ideal embodiments of the present invention are inspired by the above, and relevant persons can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.
