Centralized control monitoring system and control method for ship seawater piping system

Abstract

The invention relates to the technical field of ship seawater piping system control, in particular to a ship seawater piping system centralized control monitoring system and a control method. According to the invention, remote multi-stage monitoring and control of the whole ship seawater system can be realized, the current state of the seawater system can be timely mastered, an accurate basis is provided for operation and maintenance of a marine engine department, remote operation of equipment or timely decision-making of faults is realized, and operability and maintainability of the seawater system are greatly improved; remote control of the seawater main pipe pneumatic butterfly valve is achieved through the seawater main pipe pneumatic butterfly valve remote control system, monitoring and self-cleaning control of the working state of a seawater filter are achieved through the self-cleaning seawater filter monitoring system, and monitoring of the working state of an anti-corrosion sleeve is achieved through the anti-corrosion sleeve monitoring system. Fault links of the seawater system can be found and handled in the first time, and stable and normal operation of the whole ship seawater system is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of ship seawater piping system control, and in particular to a ship seawater piping system centralized control monitoring system and a control method. Background Art

[0002] When a ship is sailing, it is often necessary to operate the isolation valve of the seawater main. However, the isolation valve of the seawater main of ships in the prior art is often located deep at the bottom of the engine room, which is bound to cause operational troubles. In addition, in emergencies, it is often difficult to open or close the seawater main in time, or when the pipeline system has unexpected situations such as power outages and gas outages, but there is no way to open or close the pipeline system, it will seriously affect the safety of the ship's navigation and even cause major accidents.

[0003] At the same time, the ship's seawater pipe system is also equipped with a self-cleaning seawater filter. The working state of the self-cleaning seawater filter directly affects the cooling state of actual equipment such as diesel engines, gear boxes, and air compressors. If the self-cleaning seawater filter is blocked, the seawater flow and pressure at the rear end cannot be guaranteed, and then the cooling state of the equipment cannot be guaranteed, resulting in equipment damage.

[0004] Furthermore, in the prior art, the seawater piping system equipped with the anti-corrosion casing is usually not found to have been completely consumed until a leak occurs, at which time the protection of the anode has disappeared, causing corrosion of the seawater piping system. Summary of the invention

[0005] The technical problem to be solved by the present invention is: to provide a centralized control monitoring system and control method for a ship's seawater piping system, which can realize remote hierarchical control of the ship's seawater system. By remotely monitoring the working conditions of the ship's seawater piping system's pneumatic valves, self-cleaning seawater filters, and anti-corrosion casings, faulty links in the seawater system can be discovered in time and dealt with, thereby greatly improving the operability and maintainability of the seawater system.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] 1. A centralized control and monitoring system for ship seawater pipe systems

[0008] The present invention provides a centralized control and monitoring system for a ship's seawater piping system, which mainly includes: a seawater main pipe pneumatic butterfly valve remote control system, a self-cleaning seawater filter monitoring system, and an anti-corrosion casing monitoring system;

[0009] The seawater main pneumatic butterfly valve remote control system includes a pneumatic butterfly valve host computer module, a pneumatic butterfly valve control box module and a pneumatic butterfly valve 4. The pneumatic butterfly valve 4 is installed at both ends of the seawater main 8 at the bottom of the ship's engine room. An isolation valve 9 is provided in the middle of the seawater main 8. The pneumatic butterfly valve 4 is connected to the pneumatic butterfly valve control box module through a signal line, and the pneumatic butterfly valve control box module communicates remotely with the pneumatic butterfly valve host computer module.

[0010] The self-cleaning seawater filter monitoring system includes a filter host computer module, a filter control box module and a self-cleaning seawater filter 3, wherein the self-cleaning seawater filter 3 is installed between the pneumatic butterfly valve 4 and the sea valve 6 at both ends of the seawater main pipe 8, and the front and rear ends of the self-cleaning seawater filter 3 are provided with filter pressure sensors, and the filter pressure sensors are connected to the differential pressure transmitter 7, and the self-cleaning seawater filter 3 and the differential pressure transmitter 7 are connected to the filter control box module through a signal line, and the filter control box module communicates remotely with the filter host computer module;

[0011] The anti-corrosion casing monitoring system includes a casing host computer module, a casing control box module and an anti-corrosion casing 5, wherein the anti-corrosion casing 5 is installed on the seawater main pipe 8 at both ends of the isolation valve 9, and a casing pressure sensor is provided on the anti-corrosion casing 5, and the casing pressure sensor is connected to the casing control box module through a signal line, and the casing control box module communicates remotely with the casing host computer module;

[0012] The pneumatic butterfly valve host computer module, the filter host computer module, and the casing host computer module are all integrated in the remote seawater system monitoring station 1, and the pneumatic butterfly valve control box module, the filter control box module, and the casing control box module are all integrated and installed in the on-site seawater system control box 2.

[0013] Furthermore, a compressed air inlet is provided on the side of the seawater system control box 2 , one end of the compressed air inlet is connected to a compressed air source of 0.7-1.0 MPa, and the other end is connected to the pneumatic butterfly valve 4 through a compressed air pipeline.

[0014] Furthermore, a plurality of operation buttons, indicator lights, a buzzer, a mute key, a power switch and a remote control / local mode switching switch are arranged on the front panel of the seawater system control box 2, and a PLC controller is installed above the seawater system control box 2.

[0015] Furthermore, the pneumatic butterfly valve control box module is used to obtain the working status of the pneumatic butterfly valve 4 in real time and send it to the pneumatic butterfly valve host computer module. At the same time, the pneumatic butterfly valve control box module receives the control instructions sent by the pneumatic butterfly valve host computer module in real time and controls the pneumatic butterfly valve 4 to perform corresponding actions.

[0016] Furthermore, the filter control box module is used to obtain the working status of the self-cleaning seawater filter 3 in real time and send it to the filter host computer module. At the same time, the filter control box module receives the control instructions sent by the filter host computer module in real time and controls the self-cleaning seawater filter 3 to perform corresponding actions.

[0017] Furthermore, the differential pressure transmitter 7 is used to obtain the pressure difference between the two ends of the self-cleaning seawater filter 3 in real time and send it to the filter host computer module. When the pressure difference exceeds the preset allowable range, the filter host computer module controls the corresponding buzzer on the seawater system control box 2 to sound an alarm, reminding the operator to maintain the self-cleaning seawater filter 3.

[0018] Furthermore, the casing control box module is used to obtain the pressure value of the outer ring of the anti-corrosion casing 5 in real time and send it to the casing host computer module. When the pressure value is greater than 0, it reminds the operator that the inner ring of the anti-corrosion casing 5 has been completely corroded and consumed; when the pressure value exceeds the preset pressure threshold, the casing host computer module controls the corresponding indicator light on the seawater system control box 2 to flash, reminding the operator to replace the anti-corrosion casing 5.

[0019] Furthermore, the self-cleaning seawater filter 3 and the pneumatic butterfly valve 4 are interlocked and controlled, and when the self-cleaning motor of the self-cleaning seawater filter 3 is started, the corresponding pneumatic butterfly valve 4 is automatically closed.

[0020] Furthermore, the seawater system monitoring station 1 is specifically arranged in a remote ship command room, and the seawater system control box 2 is specifically installed in a ship equipment room on site by hanging the wall with steel wires.

[0021] 2. A control method for a centralized control and monitoring system for a ship's seawater piping system

[0022] Based on the same inventive concept, the present invention also provides a control method for the centralized control and monitoring system of the ship seawater pipe system as described above, which specifically includes the following steps:

[0023] S1, when the mode switch on the seawater system control box is in the "remote control mode", the actions of the pneumatic butterfly valve and the self-cleaning seawater filter are remotely controlled through the seawater system monitoring console;

[0024] S2, when the mode switch on the seawater system control box is in "local mode", the actions of the pneumatic butterfly valve and the self-cleaning seawater filter are manually controlled through the corresponding operation buttons on the control box;

[0025] S3, when the pressure difference between the two ends of the self-cleaning seawater filter exceeds the preset allowable range, the monitoring station and the control box both issue a corresponding filter failure alarm to remind the operator to perform maintenance on the self-cleaning seawater filter;

[0026] S4, when the pressure sensor value of the outer ring of the anti-corrosion casing exceeds the preset pressure threshold, the monitoring station and the control box both issue a corresponding casing failure alarm to remind the operator to replace the anti-corrosion casing;

[0027] S5, the self-cleaning seawater filter and the pneumatic butterfly valve are interlocked. When the pneumatic butterfly valve is opened, the self-cleaning motor of the self-cleaning seawater filter is not allowed to operate; when the self-cleaning motor of the self-cleaning seawater filter is started, the corresponding pneumatic butterfly valve automatically switches to the closed state.

[0028] Compared with the prior art, the present invention has the following main advantages:

[0029] 1. The present invention can realize remote multi-level monitoring and control of the entire ship's seawater system through the coordination of the seawater main pneumatic butterfly valve remote control system, the self-cleaning seawater filter monitoring system, and the anti-corrosion casing monitoring system, and can timely grasp the current state of the seawater system, provide accurate basis for the operation and maintenance of the engine department, and realize remote operation of equipment or timely decision-making of faults, which greatly improves the operability and maintainability of the seawater system;

[0030] 2. The present invention realizes remote control of the pneumatic butterfly valve of the seawater main through the seawater main pneumatic butterfly valve remote control system, realizes monitoring and self-cleaning control of the working state of the seawater filter through the self-cleaning seawater filter monitoring system, and realizes monitoring of the working state of the anti-corrosion casing through the anti-corrosion casing monitoring system. Faulty links in the seawater system can be discovered and dealt with in the first place, thereby ensuring stable and normal operation of the ship's seawater system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is an overall schematic diagram of a centralized control and monitoring system for a ship's seawater pipe system in an embodiment of the present invention;

[0032] Figure 2 Schematic diagram of a seawater system control box in an embodiment of the present invention;

[0033] Figure 3 The flowchart of the control method of the centralized control and monitoring system of the ship seawater pipe system in the embodiment of the present invention.

[0034] In the figure: 1-seawater system monitoring station, 2-seawater system control box, 3-self-cleaning seawater filter, 4-pneumatic butterfly valve, 5-anti-corrosion casing, 6-sea valve, 7-differential pressure transmitter, 8-seawater main pipe, 9-isolation valve. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0037] Embodiment 1: This embodiment provides a centralized control and monitoring system for a ship's seawater pipe system. Figure 1 As shown, it mainly includes the seawater main pneumatic butterfly valve remote control system, the self-cleaning seawater filter monitoring system, and the anti-corrosion casing monitoring system to realize remote hierarchical control of the ship's seawater system.

[0038] The seawater main pneumatic butterfly valve remote control system is composed of a host computer, a control box module, a pneumatic butterfly valve, etc. The host computer can be independent or embedded in a monitoring station, and is the control center of the seawater centralized control and monitoring system; the control box module is located in the control box, and the control box is mounted on the wall by steel wire, and is the remote control center of the seawater main isolation valve remote control system; the pneumatic butterfly valve is connected to the control box module through an opening and closing circuit, and is placed at both ends of the seawater main at the bottom of the ship's engine room, and is the actuator of the seawater main pneumatic butterfly valve remote control system;

[0039] The pneumatic butterfly valve can be remotely controlled by the seawater monitoring station, remotely controlled by the mid-range control box, and can be operated locally in the event of power failure.

[0040] Furthermore, the self-cleaning seawater filter monitoring system is composed of a host computer, a control box module, a self-cleaning seawater filter, pressure sensors before and after the filter, etc. The host computer can be independent or embedded in a centralized control console, and is the monitoring center of the seawater filter monitoring system; the control box module is located in the control box, and the control box is mounted on the wall by steel wire, and is the mid-range monitoring center of the seawater filter monitoring system; the self-cleaning seawater filter is connected to the host computer through a control line, and the filter pressure sensor is connected to the host computer through a differential pressure transmitter. The self-cleaning seawater filter is located behind the sea valve, and the filter pressure sensor is placed before and after the self-cleaning seawater filter, providing input for the control, monitoring and alarm of the control box and the host computer;

[0041] The pressure differential calibration value of the pressure differential transmitter is used to confirm whether the actual pressure differential is within the allowable range. If it exceeds the tolerance, an alarm is issued. By realizing the monitoring and alarm of the filter pressure differential in the control box and the host computer, direct suggestions are given for actual maintenance to facilitate timely cleaning by the engine department.

[0042] Furthermore, the anti-corrosion casing monitoring system is composed of a host computer, a control box module, an anti-corrosion casing, a casing pressure sensor, etc.; the host computer can be independent or embedded in a centralized control console, which is the control center of the seawater system centralized control system; the casing pressure sensor is connected to the host computer through a monitoring line, and is placed at the anti-corrosion casing in the flange of the seawater pipeline to provide input for the monitoring and alarm of the host computer.

[0043] When the casing pressure sensor has a pressure reading, it means that the inner casing has been completely corroded. The calibration value of the pressure controller is used to confirm whether the actual pressure is within the allowable range. If it is out of tolerance, an alarm will be issued. The control box and the centralized control desk will issue an alarm to remind the engine department to replace the anti-corrosion casing in time to ensure that anti-electrochemical corrosion measures are always in place.

[0044] Specifically, a compressed air inlet is provided on the side of the seawater system control box 2 , one end of the compressed air inlet is connected to a compressed air source of 0.7-1.0 MPa, and the other end is connected to the pneumatic butterfly valve 4 through a compressed air pipeline.

[0045] Furthermore, a plurality of operation buttons, indicator lights, a buzzer, a mute key, a power switch and a remote control / local mode switching switch are arranged on the front panel of the seawater system control box 2, and a PLC controller is installed above the seawater system control box 2.

[0046] Furthermore, the pneumatic butterfly valve control box module is used to obtain the working status of the pneumatic butterfly valve 4 in real time and send it to the pneumatic butterfly valve host computer module. At the same time, the pneumatic butterfly valve control box module receives the control instructions sent by the pneumatic butterfly valve host computer module in real time and controls the pneumatic butterfly valve 4 to perform corresponding actions.

[0047] Furthermore, the filter control box module is used to obtain the working status of the self-cleaning seawater filter 3 in real time and send it to the filter host computer module. At the same time, the filter control box module receives the control instructions sent by the filter host computer module in real time and controls the self-cleaning seawater filter 3 to perform corresponding actions.

[0048] Furthermore, the differential pressure transmitter 7 is used to obtain the pressure difference between the two ends of the self-cleaning seawater filter 3 in real time and send it to the filter host computer module. When the pressure difference exceeds the preset allowable range, the filter host computer module controls the corresponding buzzer on the seawater system control box 2 to sound an alarm, reminding the operator to maintain the self-cleaning seawater filter 3.

[0049] Furthermore, the casing control box module is used to obtain the pressure value of the outer ring of the anti-corrosion casing 5 in real time and send it to the casing host computer module. When the pressure value is greater than 0, it reminds the operator that the inner ring of the anti-corrosion casing 5 has been completely corroded and consumed; when the pressure value exceeds the preset pressure threshold, the casing host computer module controls the corresponding indicator light on the seawater system control box 2 to flash, reminding the operator to replace the anti-corrosion casing 5.

[0050] Furthermore, the self-cleaning seawater filter 3 and the pneumatic butterfly valve 4 are interlocked and controlled, and when the self-cleaning motor of the self-cleaning seawater filter 3 is started, the corresponding pneumatic butterfly valve 4 is automatically closed.

[0051] Furthermore, the seawater system monitoring station 1 is specifically arranged in a remote ship command room, and the seawater system control box 2 is specifically installed in a ship equipment room on site by hanging the wall with steel wires.

[0052] Embodiment 2: This embodiment provides a centralized control and monitoring system for a ship seawater pipe system, which is mainly composed of a seawater system monitoring station 1, a seawater system control box 2, a self-cleaning seawater filter 3, a pneumatic butterfly valve 4, an anti-corrosion casing 5, and a differential pressure transmitter 7;

[0053] The control box 2 is mounted on the wall by steel wire and is the remote control center of the seawater system. The seawater system monitoring station 1 is the remote control center of the seawater system and is arranged in the centralized control room. The pneumatic butterfly valve 4 is connected to the control box 2 through the control line and is located on the seawater main pipe. It is the actuator for opening and closing the seawater main pipe. The self-cleaning seawater filter 3 is connected to the control box 2 through the control line and is located on the seawater main pipe. It is the first filter for seawater. The anti-corrosion sleeve 5 is connected to the control box 2 through the monitoring line and is located on the seawater pipe. It is the sacrificial anode of the seawater pipeline and plays a role in preventing electrochemical corrosion of the seawater pipeline.

[0054] like Figure 2 As shown, the control box 2 is provided with a compressed air inlet, a PLC, a solenoid valve group, a pressure controller, a differential pressure transmitter, an indicator light, a buzzer, a start button, a mute button, a power switch, etc. The control box is provided with a power indicator, a remote control mode and a local mode. When an alarm occurs, the mute button can be used to mute the alarm.

[0055] In the control box 2, the flow of compressed air can be controlled by the built-in solenoid valve group. The compressed air inlet is connected to 0.7-1.0MPa compressed air. The indicator light is set on the outer surface of the control box 2, and the pneumatic butterfly valve 4 has a closed and open state display. The buzzer is set next to the indicator light. When the pneumatic butterfly valve 4 fails to operate normally, the fault light is on and an alarm is issued, which can be silenced and reset by the mute button; the control PLC is located on the outer surface of the control box 2, one end of which is connected to the seawater system monitoring station, and the other end is connected to each structure in the pneumatic butterfly valve 4. It is a transmission and receiving module for computer-side signals installed on the control box 2 to realize communication with the monitoring station, so that the monitoring station can remotely receive alarm signals and control signals, and remotely operate the pneumatic valve.

[0056] In the control box 2, the start and stop of the self-cleaning seawater filter motor can be controlled by the internal switch, and there is a status display. When the pressure difference of the seawater filter is high, an audible and visual alarm will be issued to remind the staff to perform self-cleaning operation on the seawater filter. When the seawater filter is self-cleaning, a chain signal will occur. At this time, the pneumatic valve connected to the self-cleaning seawater filter should be in a closed state, otherwise the self-cleaning motor cannot be turned on due to the existence of the chain signal. The actual design consideration is that when the motor starts, the pneumatic valve is automatically closed. At this time, the entire seawater system is in a non-working state.

[0057] Furthermore, the pressure differential transmitter before and after the filter can obtain the pressure differential value before and after the filter in real time, so as to judge the current working state of the filter and whether self-cleaning is required. When the filter pressure differential exceeds 0.1MPa, it means that the seawater filter is seriously blocked, and an audible and visual alarm is issued to prompt the filter to be cleaned in time. The control PLC is located on the outer surface of the control box 2, one end of which is connected to the seawater system monitoring station, and the other end is connected to the pressure instrument and motor of the self-cleaning seawater filter 3. It is a transmission and receiving module for computer-side signals installed on the control box 2, which realizes communication with the monitoring station, so that the monitoring station can remotely receive alarm signals and control signals, and remotely operate the self-cleaning seawater filter.

[0058] In the control box 2, the pressure controller interacts with the pressure sensor of the anti-corrosion casing 3 to receive the pressure value sent by the pressure sensor of the anti-corrosion casing. When the seawater pressure exceeds 0.2MPa, it means that the inner sleeve of the anti-corrosion casing has been corroded for a large part and needs to be replaced urgently. An audible and visual alarm is issued to prompt the replacement of the anti-corrosion casing. The control PLC is located on the outer surface of the control box 2, one end of which is connected to the seawater system monitoring station and the other end is connected to the pressure controller of the anti-corrosion casing. It is a transmission and receiving module for computer-side signals installed on the control box 2 to realize communication with the monitoring station, so that the monitoring station can remotely receive alarm signals, monitor the corrosion situation through readings, and replace the anti-corrosion casing before the pressure alarm occurs based on experience.

[0059] Furthermore, the control box 2 can monitor multiple pneumatic butterfly valves, multiple self-cleaning seawater filters and multiple anti-corrosion casings at the same time.

[0060] Embodiment 3, based on the same inventive concept, this embodiment also provides a control method for the centralized control and monitoring system of the ship seawater pipe system as described above, such as Figure 3 As shown, the specific steps include:

[0061] S1, when the mode switch on the seawater system control box is in the "remote control mode", the actions of the pneumatic butterfly valve and the self-cleaning seawater filter are remotely controlled through the seawater system monitoring console;

[0062] S2, when the mode switch on the seawater system control box is in "local mode", the actions of the pneumatic butterfly valve and the self-cleaning seawater filter are manually controlled through the corresponding operation buttons on the control box;

[0063] S3, when the pressure difference between the two ends of the self-cleaning seawater filter exceeds the preset allowable range, the monitoring station and the control box both issue a corresponding filter failure alarm to remind the operator to perform maintenance on the self-cleaning seawater filter;

[0064] S4, when the pressure sensor value of the outer ring of the anti-corrosion casing exceeds the preset pressure threshold, the monitoring station and the control box both issue a corresponding casing failure alarm to remind the operator to replace the anti-corrosion casing;

[0065] S5, the self-cleaning seawater filter and the pneumatic butterfly valve are interlocked. When the pneumatic butterfly valve is opened, the self-cleaning motor of the self-cleaning seawater filter is not allowed to operate; when the self-cleaning motor of the self-cleaning seawater filter is started, the corresponding pneumatic butterfly valve automatically switches to the closed state.

[0066] Furthermore, when the pressure difference of the self-cleaning seawater filter is ≥0.1MPa, the control box or monitoring station will send out an audible and visual alarm to remind the staff to perform self-cleaning operations on the seawater filter.

[0067] Furthermore, when the self-cleaning seawater filter is in self-cleaning operation, a chain will occur. At this time, the pneumatic valve connected to the self-cleaning seawater filter should be in a closed state, otherwise the self-cleaning motor cannot be turned on due to the existence of the chain signal. The actual design is that when the motor starts, the pneumatic valve is automatically closed. At this time, the entire seawater system is in a non-working state.

[0068] Furthermore, all parts involved in this application that are not described in detail are the same as the prior art or are implemented using the prior art.

[0069] In summary:

[0070] 1. The present invention can realize remote multi-level monitoring and control of the entire ship's seawater system through the coordination of the seawater main pneumatic butterfly valve remote control system, the self-cleaning seawater filter monitoring system, and the anti-corrosion casing monitoring system, and can timely grasp the current state of the seawater system, provide accurate basis for the operation and maintenance of the engine department, and realize remote operation of equipment or timely decision-making of faults, which greatly improves the operability and maintainability of the seawater system;

[0071] 2. The present invention realizes remote control of the pneumatic butterfly valve of the seawater main through the seawater main pneumatic butterfly valve remote control system, realizes monitoring and self-cleaning control of the working state of the seawater filter through the self-cleaning seawater filter monitoring system, and realizes monitoring of the working state of the anti-corrosion casing through the anti-corrosion casing monitoring system. Faulty links in the seawater system can be discovered and dealt with in the first place, thereby ensuring stable and normal operation of the ship's seawater system.

[0072] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centralized control and monitoring system for ship seawater pipe system, characterized in that: It includes the seawater main pneumatic butterfly valve remote control system, the self-cleaning seawater filter monitoring system, and the anti-corrosion casing monitoring system; The seawater main pneumatic butterfly valve remote control system comprises a pneumatic butterfly valve host computer module, a pneumatic butterfly valve control box module and a pneumatic butterfly valve (4), wherein the pneumatic butterfly valve (4) is installed at both ends of the seawater main (8) at the bottom of the ship's engine room, an isolation valve (9) is provided in the middle of the seawater main (8), the pneumatic butterfly valve (4) is connected to the pneumatic butterfly valve control box module via a signal line, and the pneumatic butterfly valve control box module remotely communicates with the pneumatic butterfly valve host computer module; The self-cleaning seawater filter monitoring system comprises a filter host computer module, a filter control box module and a self-cleaning seawater filter (3); the self-cleaning seawater filter (3) is installed between a pneumatic butterfly valve (4) and a sea valve (6) at both ends of a seawater main pipe (8); filter pressure sensors are provided at the front and rear ends of the self-cleaning seawater filter (3); the filter pressure sensors are connected to a differential pressure transmitter (7); the self-cleaning seawater filter (3) and the differential pressure transmitter (7) are connected to the filter control box module via a signal line; the filter control box module communicates remotely with the filter host computer module; The anti-corrosion casing monitoring system comprises a casing host computer module, a casing control box module and an anti-corrosion casing (5), wherein the anti-corrosion casing (5) is installed on a seawater main pipe (8) at both ends of an isolation valve (9), and a casing pressure sensor is provided on the anti-corrosion casing (5), wherein the casing pressure sensor is connected to the casing control box module via a signal line, and the casing control box module remotely communicates with the casing host computer module; The pneumatic butterfly valve host computer module, the filter host computer module, and the casing host computer module are all integrated and arranged in a remote seawater system monitoring station (1), and the pneumatic butterfly valve control box module, the filter control box module, and the casing control box module are all integrated and installed in an on-site seawater system control box (2).

2. According to claim 1, a centralized control and monitoring system for ship seawater pipe system, characterized in that: A compressed air inlet is provided on the side of the seawater system control box (2), one end of the compressed air inlet is connected to a 0.7-1.0 MPa compressed air source, and the other end is connected to the pneumatic butterfly valve (4) through a compressed air pipeline.

3. According to claim 1, a centralized control and monitoring system for ship seawater pipe system, characterized in that: The front panel of the seawater system control box (2) is provided with a plurality of operation buttons, indicator lights, a buzzer, a mute key, a power switch and a remote control / local mode switching switch, and a PLC controller is installed above the seawater system control box (2).

4. According to claim 1, a centralized control and monitoring system for ship seawater pipe system, characterized in that: The pneumatic butterfly valve control box module is used to obtain the working status of the pneumatic butterfly valve (4) in real time and send it to the pneumatic butterfly valve host computer module. At the same time, the pneumatic butterfly valve control box module receives the control instructions sent by the pneumatic butterfly valve host computer module in real time and controls the pneumatic butterfly valve (4) to perform corresponding actions.

5. According to claim 1, a centralized control and monitoring system for ship seawater pipe system, characterized in that: The filter control box module is used to obtain the working status of the self-cleaning seawater filter (3) in real time and send it to the filter host computer module. At the same time, the filter control box module receives the control instructions sent by the filter host computer module in real time and controls the self-cleaning seawater filter (3) to perform corresponding actions.

6. A centralized control and monitoring system for seawater pipe systems of ships according to claim 5, characterized in that: The differential pressure transmitter (7) is used to obtain the pressure difference between the two ends of the self-cleaning seawater filter (3) in real time and send it to the filter host computer module. When the pressure difference exceeds a preset allowable range, the filter host computer module controls the corresponding buzzer on the seawater system control box (2) to sound an alarm, reminding the operator to perform maintenance on the self-cleaning seawater filter (3).

7. A centralized control and monitoring system for ship seawater pipe systems according to claim 1, characterized in that: The casing control box module is used to obtain the pressure value of the outer ring of the anti-corrosion casing (5) in real time and send it to the casing host computer module. When the pressure value is greater than 0, it reminds the operator that the inner ring of the anti-corrosion casing (5) has been completely corroded and consumed; when the pressure value exceeds a preset pressure threshold, the casing host computer module controls the corresponding indicator light on the seawater system control box (2) to flash, reminding the operator to replace the anti-corrosion casing (5).

8. A centralized control and monitoring system for ship seawater pipe systems according to claim 1, characterized in that: The self-cleaning seawater filter (3) and the pneumatic butterfly valve (4) are interlocked and controlled, and when the self-cleaning motor of the self-cleaning seawater filter (3) is started, the corresponding pneumatic butterfly valve (4) is automatically closed.

9. A centralized control and monitoring system for ship seawater pipe systems according to claim 1, characterized in that: The seawater system monitoring station (1) is specifically arranged in a remote ship command room, and the seawater system control box (2) is specifically installed in a ship equipment room on site by means of steel wire wall hanging.

10. A control method for a centralized control and monitoring system for a ship seawater pipe system as claimed in any one of claims 1 to 8, characterized in that: The steps include: S1, when the mode switch on the seawater system control box is in "remote control mode", the actions of the pneumatic butterfly valve and the self-cleaning seawater filter are remotely controlled through the seawater system monitoring console; S2, when the mode switch on the seawater system control box is in "local mode", the actions of the pneumatic butterfly valve and the self-cleaning seawater filter are manually controlled through the corresponding operation buttons on the control box; S3, when the pressure difference between the two ends of the self-cleaning seawater filter exceeds the preset allowable range, the monitoring station and the control box both issue a corresponding filter failure alarm to remind the operator to perform maintenance on the self-cleaning seawater filter; S4, when the pressure sensor value of the outer ring of the anti-corrosion casing exceeds the preset pressure threshold, the monitoring station and the control box both issue a corresponding casing failure alarm to remind the operator to replace the anti-corrosion casing; S5, the self-cleaning seawater filter and the pneumatic butterfly valve are interlocked. When the pneumatic butterfly valve is opened, the self-cleaning motor of the self-cleaning seawater filter is not allowed to operate; when the self-cleaning motor of the self-cleaning seawater filter is started, the corresponding pneumatic butterfly valve automatically switches to the closed state.

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