Marine electric air inlet emergency bypass device and control method of marine electric air inlet emergency bypass device

Abstract

The invention relates to the technical field of air intake of ship power devices, in particular to a marine electric air intake emergency bypass device and a control method of the marine electric air intake emergency bypass device. The marine electric air inlet emergency bypass device comprises a bypass door shell, a water removal grating, a sealing door, an electric supporting rod, an electric suction lock, a hinge and a bypass door controller. The water removal grating is connected to the opening of the bypass door shell; the sealing door and the bypass door shell are connected through a hinge and an electric supporting rod and can move. The electric supporting rod is connected with the bypass door shell and the sealing door to drive the sealing door to move relative to the bypass door shell so as to open or close the opening; the electric suction lock is connected with the bypass door shell and used for sucking the sealing door under the condition that the sealing door closes the opening. The functions of opening, closing, opening degree adjusting and the like of the emergency bypass door in the remote automatic mode and the manual mode can be achieved, the work of manually operating the air inlet emergency bypass door is reduced, and the reliability of the air inlet filtering device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air intake of a ship power plant, and in particular to a ship electric air intake emergency bypass device and a control method for the ship electric air intake emergency bypass device. Background Art

[0002] The air intake filtration system is used to filter aerosols and solid particles such as water and salt in the ocean air to achieve the goal of air intake purification. Since the traditional air-water separation device adopts the three-stage filtration principle, on the one hand, when the mesh pad stage is blocked or the inertial stage is damaged, the air intake pressure loss will increase. On the other hand, when the ship performs a rapid propulsion task, the working power of the power unit will increase, and the air intake volume will increase accordingly. The conventional air intake filtration system can no longer meet the air intake supply. Based on the above two working conditions, opening the emergency bypass door in the air intake filtration system to increase the air intake volume is currently an effective way to increase the air intake supply.

[0003] However, most of the current marine air intake bypass devices are driven by air source, using electrical signals to control the air source to open the bypass door. This function is relatively simple, but the air path system layout is relatively complex. At the same time, this driving mode is a one-way operation, which cannot achieve automatic closing and opening adjustment of the bypass door, and manual control of the bypass door is required to close. On the other hand, due to the narrow space of the air intake chamber, the operation is more difficult. The control system composed of multiple types of components such as solenoid valves, travel switches, locking devices, pneumatic springs, etc., is prone to signal disorder when the bypass device is not closed in strict accordance with the operating sequence, and the overall reliability of the air intake emergency bypass device is low. Summary of the invention

[0004] The purpose of the present invention includes providing a marine electric air intake emergency bypass device and a marine electric air intake emergency bypass device control method, which can realize the functions of opening, closing and opening adjustment of the emergency bypass door in remote automatic and manual modes, reduce the manual operation work of the air intake emergency bypass door, reduce the manual operation work of the air intake emergency bypass door, and increase the reliability of the air intake filter device.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a marine electric air intake emergency bypass device, the marine electric air intake emergency bypass device comprising a bypass door housing, a water removal grille, a sealing door, an electric support rod and an electric suction lock;

[0007] The water removal grille is connected to the opening of the bypass door shell; the sealing door is movably connected to the bypass door shell;

[0008] The electric prop is connected to the bypass door housing and the sealing door to drive the sealing door to move relative to the bypass door housing to open or close the opening;

[0009] The electric suction lock and the bypass door housing are used to absorb the sealed door when the sealed door closes the opening.

[0010] In an optional embodiment, the marine electric air intake emergency bypass device further includes a control console, a monitoring system and a bypass door controller;

[0011] The monitoring system and the bypass door controller are both electrically connected to the control console; the monitoring system is used to detect the pressure of the external gas-water separation device, the working state of the external power device and the temperature state of the sealing door;

[0012] Wherein, the bypass door controller is electrically connected to the electric support rod and the electric suction lock.

[0013] In an optional embodiment, the monitoring system includes a pressure detection sensor and a power device detection unit;

[0014] The pressure detection sensor is connected to the external gas-water separation device and is used to detect the pressure of the gas-water separation device; the power device detection unit is connected to the power device and is used to detect the working state of the power device.

[0015] In an optional embodiment, the monitoring system further includes a temperature sensor and a heating device;

[0016] The temperature sensor is used to detect the temperature at the contact point between the sealing door and the opening; the heating device is arranged at the opening along the contour of the opening, or along the outer edge of the sealing door.

[0017] In a second aspect, the present invention provides a control method for a marine electric air intake emergency bypass device, which is applied to the above-mentioned marine electric air intake emergency bypass device, comprising:

[0018] The control console receives a pressure signal representing the pressure of the gas-water separation device output by the pressure detection sensor, and receives a power signal representing the state of the power device output by the power device detection unit;

[0019] The control console confirms the status of the gas-water separation device and the power device based on the pressure signal and the power signal;

[0020] Under preset conditions, the console controls the bypass door controller, so that the electric support rod and the electric suction lock start working in sequence, so that the sealed door is opened or closed;

[0021] Among them, the preset conditions include that the average pressure loss value of the gas-water separation device within 30 seconds is greater than or equal to 2000Pa, and / or the state feedback of the power device indicates insufficient air intake.

[0022] In an optional embodiment, the steps after the console controls the bypass door controller further include:

[0023] The console determines whether the marine electric air intake emergency bypass device fails;

[0024] If a fault occurs, a fault command will be issued and an audible and visual alarm will be given;

[0025] If no fault occurs, the control command is sent to the bypass door controller; the bypass door controller controls the start-up of the electric suction lock and the electric support rod, and the electric suction lock starts before the electric support rod. The difference between the start-up time of the electric suction lock and the start-up time of the electric support rod is 0.5 seconds.

[0026] In an optional embodiment, when the electric strut causes the sealed door to be opened or closed, the working signal of the electric strut is processed by the bypass door controller and fed back to the console; the console converts the signal into an opening and closing angle and feeds it back to the display interface; and the electric strut causes the sealed door to be opened at seven angles, which are 0°, 10°, 20°, 30°, 40°, 50° and 60° respectively.

[0027] In an optional embodiment, when the bypass door controller first receives the command output by the control console to control the electric prop to open the sealed door, the electric prop causes the sealed door to open 30°;

[0028] If after 30 seconds, the bypass door controller continues to receive the command to open the sealed door, and one of the two commands to open the front and rear sealed doors is triggered, the bypass door controller continues to control the electric support rod to operate until the sealed door is opened to the maximum angle;

[0029] If the bypass door controller does not receive an instruction to open the sealing door within 30 seconds, the control console controls the bypass door controller to make the sealing door start to close, and the opening angle of the sealing door is reduced by one level until the opening command is triggered.

[0030] In an optional embodiment, if the sealing door is opened to the maximum angle, the bypass door controller receives an instruction to open the sealing door. At this time, the bypass door controller sends an alarm signal to the control console and no longer executes the opening command, and the control console jumps to manual mode until manual takeover or the control mode is manually adjusted to automatic mode.

[0031] In an optional embodiment, when the console is in manual mode, an audible and visual alarm is emitted on the console, and at this time, any one of the seven opening angles can be manually selected;

[0032] The control console receives a temperature signal output by the temperature sensor representing the temperature at the contact point between the sealing door and the opening; when the temperature at the contact point between the sealing door and the opening is lower than 4°C, the heating device starts heating, and when the heating temperature is greater than 20°C for 120 seconds, the heating stops.

[0033] The beneficial effects of the marine electric air intake emergency bypass device and the marine electric air intake emergency bypass device control method provided by the embodiments of the present invention include:

[0034] The marine electric air intake emergency bypass device comprises a bypass door housing, a dewatering grille, a sealing door, an electric strut, an electric suction lock and a bypass door controller; the dewatering grille is connected to the opening of the bypass door housing; the sealing door is movably connected to the bypass door housing; the electric strut is connected to the bypass door housing and the sealing door to drive the sealing door to move relative to the bypass door housing to open or close the opening; the electric suction lock is connected to the bypass door housing and is used to absorb the sealing door when the sealing door closes the opening. The marine electric air intake emergency bypass device and the marine electric air intake emergency bypass device control method can realize the functions of remote automatic and manual opening, closing and opening adjustment of the emergency bypass door, reduce the manual operation of the air intake emergency bypass door, and increase the reliability of the air intake filter device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A schematic diagram of the structure of the marine electric air intake emergency bypass device provided in this embodiment;

[0037] Figure 2 A control logic diagram of the marine electric air intake emergency bypass device provided in this embodiment;

[0038] Figure 3 An automatic control flow chart of the control method of the marine electric air intake emergency bypass device provided in this embodiment;

[0039] Figure 4 This is a manual control flow chart of the control method of the marine electric air intake emergency bypass device provided in this embodiment.

[0040] Icons: 01- bypass door housing; 02- water removal grille; 03- sealing door; 04- electric support rod; 05- electric suction lock; 06- hinge; 07- bypass door controller; 08- pressure detection sensor; 10- heating device; 11- temperature sensor; 12- junction box. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0046] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0047] Please refer to Figure 1 The present embodiment provides a marine electric air intake emergency bypass device, which includes a bypass door housing 01, a dewatering grille 02, a sealing door 03, an electric support rod 04, an electric suction lock 05, a hinge 06 and a bypass door controller 07;

[0048] The water removal grille 02 is connected to the opening of the bypass door housing 01; the sealing door 03 is movably connected to the bypass door housing 01 through a hinge 06;

[0049] The electric support rod 04 is connected to the bypass door housing 01 and the sealing door 03 to drive the sealing door 03 to move relative to the bypass door housing 01 to open or close the opening;

[0050] The electric suction lock 05 is connected to the bypass door housing 01 and is used to absorb the sealing door 03 when the sealing door 03 closes the opening;

[0051] The bypass door controller 07 and the junction box 12 are installed on the lower side of the bypass door. The control lines of the electric support rod 04 and the electric suction lock 05 are connected to the bypass door controller 07, and are connected to the control box after being processed by the bypass door controller 07. The junction box 12 is used to connect the lines of the heating device 10 and connect the lines to the control box.

[0052] The working principle of the marine electric air intake emergency bypass device is:

[0053] The marine electric air intake emergency bypass device includes a bypass door housing 01, a dewatering grille 02, a sealing door 03, an electric support rod 04, an electric suction lock 05, a hinge 06 and a bypass door controller 07; the dewatering grille 02 is connected to the opening of the bypass door housing 01; the sealing door 03 is movably connected to the bypass door housing 01 through the hinge 06; the electric support rod 04 is connected to the bypass door housing 01 and the sealing door 03 to drive the sealing door 03 to move relative to the bypass door housing 01 to open or close the opening; the electric suction lock 05 is connected to the bypass door housing 01 and is used to absorb the sealing door 03 when the sealing door 03 closes the opening. Through the above-mentioned structural arrangement, it is possible to separate the air and water of the intake air through the dewatering grille 02 during the process of air intake using the bypass door, and when the bypass door is in use, its opening is opened by the sealing door 03; and when it is in an inactive state, its opening is closed by the sealing door 03;

[0054] Therefore, during use, the electric support rod 04 and the electric suction lock 05 can be controlled to realize the functions of remote automatic and manual opening, closing and opening adjustment of the emergency bypass door, thereby reducing the manual operation of the air intake emergency bypass door and increasing the reliability of the air intake filter device.

[0055] It should be noted that the marine electric air intake emergency bypass device communicates with external equipment or structures via a junction box 12 disposed on its bypass door housing 01, thereby achieving corresponding control.

[0056] Furthermore, in the present embodiment, in order to enable the marine electric air intake emergency bypass device to be automatically or manually controlled according to the pressure of the use scenario and the state of the power unit during operation, the marine electric air intake emergency bypass device also includes a control console, a monitoring system and a bypass door controller; the monitoring system and the bypass door controller are both electrically connected to the control console; the monitoring system is used to detect the pressure of the external air-water separation device, the working state of the external power unit and the temperature state of the sealing door 03; wherein, the bypass door controller is electrically connected to the electric support rod 04 and the electric suction lock 05.

[0057] In addition, the monitoring system includes a pressure detection sensor 08 and a power device detection unit; the pressure detection sensor 08 is connected to the external gas-water separation device and is used to detect the pressure of the gas-water separation device; the power device detection unit is connected to the power device and is used to detect the working state of the power device.

[0058] The monitoring system also includes a temperature sensor 11 and a heating device 10 ; the temperature sensor 11 is used to detect the temperature at the contact point between the sealing door 03 and the opening; the heating device 10 is arranged at the opening along the contour of the opening, or along the outer edge of the sealing door 03 .

[0059] The device is installed next to the air-water separation device and is used for emergency air intake when the power system has insufficient air intake. The dewatering grille 02 and the sealing door 03 of the device are installed on the bypass door shell 01 in sequence. Under normal conditions, the sealing door 03 is in a closed state. Under emergency conditions, the electric suction lock 05 is released by controlling the electric support rod 04 to open the sealing door 03, and the dewatering grille 02 is used to separate the air and water in the intake. Considering the urgency of power supply under emergency conditions, the mesh pad level is no longer set.

[0060] In addition, various monitoring systems, control consoles and bypass door controllers are also provided. The monitoring system includes multiple monitoring components. The bypass door controller is used to control devices such as the electric support rod 04 and the electric suction lock 05. The control console can process information such as the bypass door controller and monitoring components to achieve automatic and manual control of the bypass door. Moreover, in this embodiment, the pressure loss exceeding the threshold and the insufficient air intake of the power unit are the trigger conditions for the automatic opening of the sealing door 03. Therefore, it is necessary to set a pressure detection sensor 08 for air intake pressure difference detection and a power unit status monitoring device.

[0061] Therefore, the device is based on the traditional pneumatic air intake emergency bypass device, using the electric strut 04 and CAN communication technology to realize the functions of remote opening and closing of the bypass door and opening and closing adjustment. Taking the air intake pressure loss as an important indicator for the start-up of the air intake bypass device, the selection of the pressure trigger threshold for the opening and closing operations of the sealing door 03 is extremely important. Based on theoretical derivation and a large amount of actual ship data, this device selects the optimal pressure loss trigger value for the opening and closing of the sealing door 03. At the same time, taking into account the pressure loss, air filtration effect and marine environmental conditions, the logical basis for the automatic adjustment of the opening of the sealing door 03 under emergency air intake conditions is determined to achieve the purpose of protecting the power unit to the greatest extent.

[0062] Based on the above marine electric air intake emergency bypass device, please refer to Figure 1-Figure 4 This embodiment also provides a control method for a marine electric air intake emergency bypass device, which is applied to the above-mentioned marine electric air intake emergency bypass device, comprising:

[0063] The console receives a pressure signal representing the pressure of the gas-water separation device output by the pressure detection sensor 08, and receives a power signal representing the state of the power device output by the power device detection unit;

[0064] The control console confirms the status of the gas-water separation device and the power device based on the pressure signal and the power signal;

[0065] Under the preset conditions, the console controls the bypass door controller so that the electric support rod 04 and the electric suction lock 05 start working in sequence, so that the sealed door 03 is opened or closed;

[0066] Among them, the preset conditions include that the average pressure loss value of the gas-water separation device within 30 seconds is greater than or equal to 2000Pa, and / or the state feedback of the power device indicates insufficient air intake.

[0067] Furthermore, in this embodiment, the steps after the console controls the bypass door controller to connect also include:

[0068] The console determines whether the marine electric air intake emergency bypass device fails;

[0069] If a fault occurs, a fault command will be issued and an audible and visual alarm will be given;

[0070] If no fault occurs, the control command is sent to the bypass door controller; the bypass door controller controls the electric suction lock 05 and the electric support rod 04 to start, and the electric suction lock 05 starts before the electric support rod 04, and the difference between the start time of the electric suction lock 05 and the start time of the electric support rod 04 is 0.5 seconds.

[0071] It should be noted that when the electric strut 04 opens or closes the sealing door 03, the working signal of the electric strut 04 is processed by the bypass door controller and fed back to the control console; the control console converts the signal into an opening and closing angle and feeds it back to the display interface; and the electric strut 04 allows the sealing door 03 to open at seven angles, which are 0°, 10°, 20°, 30°, 40°, 50° and 60° respectively.

[0072] Furthermore, based on the above content, when the bypass door controller first receives the command output by the console to control the electric support rod 04 to open the sealed door 03, the electric support rod 04 causes the sealed door 03 to open 30°;

[0073] If after 30 seconds, the bypass door controller continues to receive the command to open the sealed door 03, and one of the two commands to open the sealed door 03 is triggered, the bypass door controller continues to control the electric support rod 04 to operate until the sealed door 03 is opened to the maximum angle;

[0074] If the bypass door controller does not receive an instruction to open the sealing door 03 within every 30 seconds, the control console controls the bypass door controller to make the sealing door 03 start to close, and the opening angle of the sealing door 03 is reduced by one level until the opening command is triggered.

[0075] Based on the above, it should also be pointed out that if the sealing door 03 is opened to the maximum angle, the bypass door controller receives an instruction to open the sealing door 03. At this time, the bypass door controller sends an alarm signal to the control console and no longer executes the opening command, and the control console jumps to manual mode until manual takeover or the control mode is manually modulated to automatic mode.

[0076] In an optional embodiment, when the console is in manual mode, an audible and visual alarm is emitted on the console, and at this time, any one of the seven opening angles can be manually selected;

[0077] The console receives a temperature signal output by the temperature sensor 11 representing the temperature at the contact point between the sealing door 03 and the opening; when the temperature at the contact point between the sealing door 03 and the opening is lower than 4°C, the heating device 10 starts heating, and when the heating temperature is greater than 20°C for 120 seconds, the heating stops.

[0078] In summary, the control method of the marine electric air intake emergency bypass device has two modes: manual discrimination and automatic discrimination, that is, two operating modes: automatic mode and manual mode;

[0079] In automatic mode, according to the actual use environment of the ship, the air intake pressure loss, and the actual use conditions of the power unit status, this method sets the average pressure loss value of the air-water separation device within 30 seconds to 2000Pa and the power unit status feedback of insufficient air intake as the trigger switch. When the data fed back to the console by the monitoring system exceeds the threshold, the bypass door opening command is triggered.

[0080] Optionally, for different air intake systems, the preset conditions of the trigger may be different, such as the system selection pressure loss input time length, pressure loss size, etc. Under normal air intake state, the bypass door is in a closed state, so the pressure detection sensor 08 is set on the gas-water separation device to monitor the pressure loss of the air intake system; because the power unit has independent monitoring, the state of the power unit can be received or detected by the power unit detection unit. The above two types of input information are processed and judged by the console. When the opening command is triggered, the console determines whether the emergency bypass door fails. If a fault occurs, a fault command is sent to the console and an audible and visual alarm is sounded. If no fault occurs, the opening command is sent to the bypass door controller. At this time, the bypass door controller opens the electric suction lock 05 and the electric support rod. At this time, the electric suction lock 05 receives the opening command and opens first. Then, the electric support rod receives the command, the motor starts to rotate, and the sealing door 03 opens. In this regard, the opening of the sealing door 03 is 0.5 seconds later than that of the electric suction lock 05. The purpose of this setting method is to avoid overload damage to the electric support rod 04 motor. Correspondingly, the motor rotation signal is processed by the bypass door controller and fed back to the domain control. The monitoring station converts the signal into an opening and closing angle and feeds it back to the display interface.

[0081] In order to better control the intake flow rate and ensure the purity of the gas inhaled by the power unit to the greatest extent, under the condition of sufficient air supply, the opening angle of the sealing door 03 is as small as possible. At the same time, in order to improve the reliability of the system and reduce motor and manual operation, the opening angle of the sealing door 03 is 0°, 10°, 20°, 30°, 40°, 50° and 60°, respectively for the first, second, third, seventh, fifth, sixth and seventh gears. The angle is determined by the telescopic length of the electric strut 04. During the debugging stage, different opening and closing angles are determined for different extension lengths. Among them, in automatic mode, the motor prioritizes executing the 30° opening operation instruction, that is, the fourth gear command, and the console processes the input command within every 30 seconds. When one of the two input commands is triggered, the console continues to issue an opening work command to the electric support rod 04 controller until it reaches the maximum opening angle. If the opening command within every 30 seconds is not triggered, the console sends a closing work command to the bypass door controller, and the opening angle of the emergency bypass sealing door 03 is reduced by one level until the opening command is triggered. At this time, the emergency bypass sealing door 03 opens to the previous angle and no longer executes the automatic command. The system jumps to manual mode and continues to alarm until manual takeover or the control mode is manually adjusted to automatic mode.

[0082] In manual mode, when the opening condition is triggered, an audible and visual alarm sounds on the console. At this time, the seven opening angles mentioned above can be manually selected, and the operator can adjust the state of the emergency bypass sealing door 03 in real time according to various monitoring data.

[0083] In order to prevent the sealed door 03 from being unable to open due to icing of the device under extremely cold conditions, an electric heating sealing ring is added at the contact point between the sealed door 03 and the bypass door housing 01, that is, a heating device 10 is provided, and the heating device 10 has sealing and heating functions. In order to monitor the temperature state of the sealed door 03, a temperature sensor 11 is installed at the sealing ring, and the signal is transmitted to the control console. When the temperature of the device is lower than 4°C, the heating device 10 starts heating, and when the electric heating temperature is greater than 20°C for 120 seconds, the electric heating stops. Therefore, in manual mode, the temperature of the device must be monitored at all times to prevent the sealed door 03 from being unable to open due to icing at low temperatures. At this point, the operation of opening all emergency bypass devices is completed.

[0084] According to the above content, in automatic mode, when the sealed door 03 is opened and the closing command is triggered, that is, the opening command within every 30 seconds is not triggered, the bypass door controller collects the state of the sealed door 03 and the motor operating parameters and sends them to the control console. The control console collects the state of the sealed door 03, the motor operating parameters, the state of the electric suction lock 05 and the environmental conditions. When the environmental conditions reach the closing conditions, and the electric suction lock 05 is in the open state and the device is fault-free, the sealed door 03 automatically closes. When the closing command is continuously triggered and the opening angle is 0°, the control console stops the command to the bypass door controller, and the electric suction lock 05 is closed and the motor stops running. At this time, the control mode is still in automatic mode without any jump. Under automatic conditions, the emergency bypass device sealed door 03 is closed.

[0085] When the emergency bypass device is under manual control, the bypass door controller collects the state of the sealing door 03 and the motor operating parameters and sends them to the domain controller. The pre-controller feeds back the state of the sealing door 03 to the console. If the electric suction lock 05 is in the closed state, the closing command cannot be started, and the electric suction lock 05 needs to be opened remotely. When the closing command is manually operated, at this time, the state after the sealing door 03 is closed, that is, the final angle of the opening and closing angle, needs to be selected on the console. After the opening and closing angle is determined, the domain controller transmits the instruction to the bypass door controller. The bypass door controller transmits different degrees of closing commands to the electric support pole. The electric support pole motor runs different numbers of circles. When the specified opening and closing angle is reached, the motor stops running. When the opening and closing angle is 0°, after the motor stops rotating, the bypass door controller drives the electric suction lock 05 to close. At this time, the sealing door 03 is closed and the manual operation ends.

[0086] The case described above is a case where each power unit is equipped with one emergency bypass device. When multiple emergency bypass devices are equipped, for this control method, an option for the number of bypass door operations can be added, and the state of each bypass door can be controlled independently.

[0087] Accordingly, in order to realize the above-mentioned alarm, monitoring and operation functions, it is necessary to monitor the emergency device in the domain controller of the console. The software implementation architecture mainly adopts a layered architecture design model, which is divided into four hierarchical structures: application layer, business logic layer, data layer, and network layer. The network layer is a system framework package, which is responsible for receiving and sending Can information data and transmitting the received data to the data layer; the data layer is responsible for receiving data from the network layer and storing the data in the database; the business logic layer processes the data of the data layer according to the business logic and responds to the user operations of the application layer; the application layer is responsible for data display and user interaction.

[0088] The air intake status monitoring software includes eight parts: system framework, status monitoring, health management, operation control, data integration, system information, information transmission and data processing. The status monitoring package (PAK_MMI_StatusMonitor) is used to monitor the status parameters of the air intake emergency bypass device and monitor the alarm; the health management package (PAK_MMI_Hea lthManagement) completes the identification, judgment, recording and storage of the faults of the air intake emergency bypass device, as well as the display of the fault causes and solutions; the operation control package (PAK_MMI_Operat ionControl) completes the control part switching, heating power supply control, electric support rod 04 switch mode switching, heating switch control, alarm confirmation and other functions; the data integration package (PAK_MMI_Data Integrate) completes the emergency bypass door pressure difference, temperature and other historical data display functions; the system information package (PAK_MMI_SystemInformation) completes the basic parameter data of the equipment and the whole machine status data function; the information transmission package (PAK_MMI_InfoTransfer) sends the bypass device monitoring data to the network multicast, and multicasts the heartbeat message, working status message and other management messages; the data processing module (PAK_MMI_Pub l icSect ion) data processing module completes real-time data storage and database interaction functions.

[0089] In summary, the marine electric air intake emergency bypass device and the marine electric air intake emergency bypass device control method utilize a control console to realize functions such as remote opening, closing and opening adjustment of the sealing door 03 of the marine electric air intake emergency bypass device, improve the traditional working mode of manually closing the sealing door 03, and increase the safety and human-machine friendliness of the equipment.

[0090] By using devices such as the electric strut 04 and the bypass door controller, operations such as opening, closing and opening adjustment of the sealing door 03 can be realized under pure electric conditions, which upgrades the traditional pneumatic-electric control working mode, eliminates the pneumatic pipeline of the emergency bypass device, simplifies the line connection on board, avoids the occurrence of malfunctions such as the bypass device being unable to work due to pipeline damage, and improves the reliability of the equipment.

[0091] By connecting various monitoring systems, mechanical components and control systems through the control console, the bypass device can realize automatic and manual working modes, thereby realizing multi-level adjustment of the opening and closing angle of the sealing door 03 in automatic mode and manual mode, ensuring that the intake air can be filtered to the greatest extent and the power unit can be protected under emergency conditions.

[0092] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A marine electric air intake emergency bypass device, characterized in that: The marine electric air intake emergency bypass device comprises a bypass door housing, a water removal grille, a sealing door, an electric support rod and an electric suction lock; The dewatering grille is connected to the opening of the bypass door housing; the sealing door is movably connected to the bypass door housing; The electric support rod is connected to the bypass door housing and the sealing door to drive the sealing door to move relative to the bypass door housing to open or close the opening; The electric suction lock is connected to the bypass door housing and is used to absorb the sealing door when the sealing door closes the opening.

2. The marine electric air intake emergency bypass device according to claim 1, characterized in that: The marine electric air intake emergency bypass device also includes a control console, a monitoring system and a bypass door controller; The monitoring system and the bypass door controller are both electrically connected to the console; the monitoring system is used to detect the pressure of the external gas-water separation device, the working state of the external power device and the temperature state of the sealing door; Wherein, the bypass door controller is electrically connected to the electric support rod and the electric suction lock.

3. The marine electric air intake emergency bypass device according to claim 2 is characterized in that: The monitoring system includes a pressure detection sensor and a power device detection unit; The pressure detection sensor is connected to an external gas-water separation device and is used to detect the pressure of the gas-water separation device; the power device detection unit is connected to the power device and is used to detect the working state of the power device.

4. The marine electric air intake emergency bypass device according to claim 3 is characterized in that: The monitoring system also includes a temperature sensor and a heating device; The temperature sensor is used to detect the temperature at the contact point between the sealing door and the opening; the heating device is arranged at the opening along the contour of the opening, or along the outer edge of the sealing door.

5. A control method for a marine electric air intake emergency bypass device, applied to the marine electric air intake emergency bypass device as claimed in any one of claims 1 to 4, characterized in that: include: The control console receives a pressure signal representing the pressure of the gas-water separation device output by the pressure detection sensor, and receives a power signal representing the state of the power device output by the power device detection unit; The console confirms the status of the gas-water separation device and the power device according to the pressure signal and the power signal; Under preset conditions, the console controls the bypass door controller so that the electric support rod and the electric suction lock start working in sequence to open or close the sealed door; Wherein, the preset conditions include that the average pressure loss value of the gas-water separation device within 30 seconds is greater than or equal to 2000Pa, and / or the state feedback of the power device is insufficient intake air.

6. The control method of the marine electric air intake emergency bypass device according to claim 5, characterized in that: The steps after the console controls the bypass door controller also include: The control console determines whether the marine electric air intake emergency bypass device fails; If a fault occurs, a fault command will be issued and an audible and visual alarm will be given; If no fault occurs, the control command is sent to the bypass door controller; the bypass door controller controls the start-up of the electric suction lock and the electric support rod, and the electric suction lock starts before the electric support rod, and the difference between the start-up time of the electric suction lock and the start-up time of the electric support rod is 0.5 seconds.

7. The control method of the marine electric air intake emergency bypass device according to claim 6, characterized in that: When the electric strut causes the sealed door to be opened or closed, the working signal of the electric strut is processed by the bypass door controller and fed back to the console; the console converts the signal into an opening and closing angle and feeds it back to the display interface; and the electric strut causes the sealed door to be opened at seven angles, which are 0°, 10°, 20°, 30°, 40°, 50° and 60° respectively.

8. The control method of the marine electric air intake emergency bypass device according to claim 7, characterized in that: When the bypass door controller first receives the command output by the console to control the electric strut to open the sealed door, the electric strut causes the sealed door to open by 30°; If after 30 seconds, the bypass door controller continues to receive an instruction to open the sealed door, and one of the two instructions to open the sealed door is triggered, the bypass door controller continues to control the electric support rod to operate until the sealed door is opened to the maximum angle; If the bypass door controller does not receive an instruction to open the sealing door within 30 seconds, the console controls the bypass door controller to make the sealing door start to close, and the opening angle of the sealing door is reduced by one level until the opening command is triggered.

9. The control method of the marine electric air intake emergency bypass device according to claim 8, characterized in that: If the sealing door is opened to the maximum angle, the bypass door controller receives an instruction to open the sealing door. At this time, the bypass door controller sends an alarm signal to the control console and no longer executes the opening command, and the control console jumps to manual mode until manual takeover or the control mode is manually adjusted to automatic mode.

10. The control method of the marine electric air intake emergency bypass device according to claim 9, characterized in that: When the console is in manual mode, an audible and visual alarm is emitted on the console, and at this time, any one of the seven opening angles can be manually selected; The console receives a temperature signal output by a temperature sensor representing the temperature at the contact point between the sealing door and the opening; when the temperature at the contact point between the sealing door and the opening is lower than 4°C, the heating device starts heating, and when the heating temperature is greater than 20°C for 120 seconds, the heating stops.

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