KR20210143106A - Maintenance management system for ship compressor - Google Patents

Abstract

The present invention relates to a maintenance management system for a compressor for a ship, which is able to input and store the status of an FGSS device as measurement data, predict the time for analyzing and replacing the measurement data, and properly transfer the repair request or the replacement parts of the product to be replaced. The maintenance management system for the compressor for the ship comprises: a ship status monitoring server (101) acquiring the measurement data of gas pressure and flow rate of a hydraulic pump and/or the measurement data of gas pressure and flow rate of a gas compressor; and a status diagnosis server (102) on the ground having a data library, and conducting an analysis from the acquired measurement data based on the data library, and predicting the damaged part of the hydraulic pump and/or gas compressor. The ship status monitoring server (101) is connected to the status diagnosis server (102) through a communication network. The ship status monitoring server (101) transmits the measurement data of each measured part to the status diagnosis server (102) at regular intervals, and the status diagnosis server (102) refers to the data library and predicts the damaged part based on the measurement data.

Description

Maintenance management system for ship compressors

The present invention relates to a maintenance management system for a compressor for a ship, and more particularly, to input and store the state of a FGSS device (Fuel Gas Supply System: fuel gas supply system) as measurement data, and analyze the measurement data to obtain replacement parts required. It relates to a maintenance management system for a marine compressor capable of predicting the timing to be replaced in advance and delivering a repair request for a replacement part or a replacement part to an appropriate place.

In Patent Document 1, a sensor is attached to a cylinder of a propulsion engine (engine) for a large ship or a cylinder of a power generation engine, etc., and the cylinder internal pressure, fuel flow rate, etc. are continuously measured every predetermined time, and the obtained continuous data is once on board a ship. It is stored in the server, and together with the integrated display box on the onboard computer, it is transmitted and accumulated to the storage place (server) on the ground through the satellite communication line. there is a technique

Furthermore, in the log of the accumulated data, the present system accumulates a large amount of data from each ship each time, but by converting the data format different for each manufacturer of each equipment into a common format, the data of each equipment is converted into the same format. to enable data matching, and to establish a system that can remotely monitor multiple vessels under management.

[Patent Document 1] Japanese Patent Laid-Open No. 2008-198136

On the other hand, in the case of using boil-off gas from LNG (liquefied natural gas), which is the cargo of a ship, or an ME-GI engine (electronically controlled gas injection diesel engine) using the LNG as fuel, the boil-off gas is compressed to 300 bar or more. FGSS equipment (Fuel Gas Supply System: fuel gas supply system) such as a gas compressor that sends to the engine, and a hydraulic pump that pressurizes liquid LNG to 300 bar or more and sends it to the carburetor are mounted.

In addition, LNG, which is dangerous to the human body, is used as a fuel. Furthermore, from the need to secure a margin, it is premised that multiple FGSS devices are mounted and exchanged according to the operating conditions. FGSS equipment used in these ME-GI institutions needs to be properly maintained.

Thus, the present invention inputs and stores the state of the FGSS device (Fuel Gas Supply System: fuel gas supply system) as measurement data, analyzes the measurement data to predict the timing to be replaced, and requests or exchanges the replacement part An object of the present invention is to provide a maintenance management system for a marine compressor that can properly deliver parts.

The other subject of this invention becomes clear by the following description.

The said subject is solved by each of the following inventions.

1. Measured data of hydraulic pressure and flow rate measured by sensors installed at the inlet and outlet of each actuator of a hydraulic pump that pressurizes LNG, which is the ship's cargo, into liquid fuel for propulsion of the ship and/or from the LNG A ship condition monitoring server for acquiring measurement data of gas pressure and flow rate measured by sensors mounted on the inlet and outlet of each stage of a gas compressor that compresses the generated boil-off gas as gas fuel for propulsion of the ship; ,

A group of past measurement data relating to the hydraulic pressure and flow rate data, a pump code of the hydraulic pump, and basic data of the hydraulic pump including a start time, service life period, maintenance history, and parts replacement history of the hydraulic pump; The historical data of the past damage part and damage time of the hydraulic pump are stored, and the past measurement data group regarding the gas pressure and flow rate data, the compressor code of the gas compressor, and the use start time of the gas compressor, the service life period , a data library in which gas compressor basic data including maintenance history and parts replacement history, and historical data of past damaged parts and damaged times of the gas compressor are stored, and analysis based on the data library from the acquired measurement data and a condition diagnosis server on the ground that predicts the damaged part of the hydraulic pump and/or the gas compressor by executing

The ship condition monitoring server and the condition diagnosis server are connected through a communication network,

The ship condition monitoring server transmits the measured data of each part to the condition diagnosis server every predetermined time,

The condition diagnosis server refers to the data library and builds a structure for predicting a damaged area based on the measurement data.

2. The maintenance management system for a marine compressor according to the first item, wherein the condition diagnosis server constructs a structure for instructing the ship condition monitoring server to inspect and repair an exchanged item for the predicted damaged portion when the damaged portion is predicted.

3. The said ship condition monitoring server performs an inspection based on the said inspection and maintenance instruction, and, while storing the work report data of the performed inspection, transmits it to the said condition diagnosis server,

The maintenance management system for a marine compressor according to the above 2, wherein the condition diagnosis server secures replacement parts based on the received work report data.

4. The maintenance management system for marine compressors according to 1, 2 or 3 above, in which the accumulated ship data can be viewed by the ship equipment certification body.

According to the present invention, the state of the FGSS device (Fuel Gas Supply System: fuel gas supply system) is inputted as measurement data and stored, the timing of interpreting and replacing the measurement data is predicted in advance, and repair request or replacement part of the replacement part It is possible to provide a maintenance management system for a marine compressor that can properly deliver

1 is a schematic diagram of a maintenance management system for a marine compressor according to the present invention.
2 is a schematic diagram of a marine compressor for liquid compression.
3 is a schematic diagram of a marine compressor for gas compression.
4 is a schematic diagram of a marine compressor for liquid compression and gas compression;
It is a figure which shows an example of a maintenance list.
It is a figure which shows an example of the basic data of a hydraulic pump.
It is a figure which shows an example of the maintenance history which performed maintenance in the past ship.
It is a figure which shows an example of the damage history which component damage generate|occur|produced in the past ship.
It is a figure which shows an example of the process flow of the maintenance management system of the marine compressor which concerns on this embodiment.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail using drawing.

In order for a ship to continue sailing safely, it is very important to prevent engine troubles in advance and to minimize operation downtime. In particular, it is difficult to receive support from the ground when a trouble such as a breakdown occurs in the FGSS device (Fuel Gas Supply System) during the voyage. Therefore, it is required to understand the condition of the FGSS device and perform appropriate maintenance work at an earlier stage.

Conventionally, regular maintenance of FGSS devices has been performed, but the present invention collects big data obtained from FGSS devices in a unified way on board to prevent status diagnosis and failures in advance, and these are used as maintenance history of FGSS devices. and to promote the safe operation of ships.

In the present invention, the FGSS device is managed in a unified way. The method and system for maintenance and management of a marine compressor according to the present invention is in the form of a cloud, can manage the condition diagnosis of the FGSS device in a unified way, and can accurately provide necessary maintenance work according to the status of the FGSS device. The method and system for maintenance and management of a compressor for a ship according to the present invention can confirm the analysis results on both the sea and the ground using the marine broadband environment.

1 is a schematic diagram of a maintenance management system for a marine compressor according to the present invention.

In FIG. 1 , in the marine compressor maintenance management system 1 , the ship condition monitoring server 101 and the ground condition diagnosis server 102 are connected via a communication network 100 .

The ship provided with the ship condition monitoring server 101 is a ship using the ME-GI engine (electronically controlled gas injection diesel engine) which uses LNG (liquefied natural gas) as a fuel, and is equipped with FGSS apparatus.

As FGSS apparatus with which a ship is equipped, the hydraulic pump and carburetor using the liquid fuel type provided with the hydraulic pump and vaporizer which use liquid fuel, the gaseous fuel type provided with the gas compressor which uses gaseous fuel, or liquid fuel, and gaseous fuel A hybrid type having both of the gas compressors using

2 is a schematic diagram of a marine compressor for liquid compression.

The FGSS apparatus shown in FIG. 2 is provided with the hydraulic pump 2 .

As shown in FIG. 2, the hydraulic pump 2 is composed of, for example, three actuators of actuators 20, 21, 22, and navigates using two actuators, and the actuator 20, 21 and 22), two actuators are used.

The hydraulic pump 2 sends the LNG 11 from the LNG tank 10 which is the cargo of a ship to the actuators 20, 21, 22 by the LNG liquid conveyance pump.

LNG is pressurized by the actuators 20 and 21 as liquid fuel for propulsion of a ship. The pressurized liquid fuel is sent to the carburetor 3 and vaporized in the carburetor 3 , and is supplied to the main engine 5 through a check valve 50 and a valve 51 .

Also, although not shown, the high-pressure liquid fuel vaporized in the carburetor 3 may be supplied to an auxiliary engine such as the power generation engine 6 through a check valve and a valve.

As shown in FIG. 2, in the maintenance management system of the marine compressor, the sensor 70 is mounted on the inlet part of the 1st actuator 20 of the hydraulic pump 2 which pressurizes the supplied liquid fuel, and the sensor 70 is attached to the outlet part. (71) is fitted. The sensor 70 measures the hydraulic pressure and flow rate at the inlet part where the liquid fuel of the first actuator 20 flows, and the sensor 71 supplies the compressed liquid fuel of the first actuator 20 to the carburetor 3 . Measure the hydraulic pressure and flow rate at the outlet.

Next, the sensor 72 is mounted on the inlet of the second actuator 21 of the hydraulic pump 2 , and the sensor 73 is mounted on the outlet of the second actuator 21 . The sensor 72 measures the hydraulic pressure and flow rate at the inlet where the liquid fuel of the second actuator 21 flows, and the sensor 73 supplies the compressed liquid fuel of the second actuator 21 to the carburetor 3 . Measure the hydraulic pressure and flow rate at the outlet.

Next, a sensor 74 is mounted on the inlet of the third actuator 22 of the hydraulic pump 2 , and a sensor 75 is mounted on the outlet of the third actuator 22 . The sensor 74 measures the hydraulic pressure and flow rate at the inlet part where the liquid fuel of the third actuator 22 flows, and the sensor 75 supplies the compressed liquid fuel of the third actuator 22 to the carburetor 3 . Measure the hydraulic pressure and flow rate at the outlet.

In the driving state, each measurement value data is always acquired, and each acquired measurement value data can be stored in a ship condition monitoring server, and can be transmitted to the ground server every predetermined time.

3 is a schematic diagram of a marine compressor for gas compression.

The FGSS apparatus shown in FIG. 3 is equipped with the gas compressor 4 which compresses in five steps.

As shown in FIG. 3, the gas compressor 4 compresses the boil-off gas (BOG) 12 from the LNG tank 10 which is the cargo of a ship with the 1st stage|stage gas compressor 40, The 2nd The first stage is sent to the gas compressor (41). Then, the second stage gas compressor 41, the third stage gas compressor 42, the fourth stage gas compressor (4) 3, the pressure is gradually pressurized, through the fifth stage gas compressor 44, the high-pressure gas of the vessel You can get gaseous fuel for propulsion. Although not shown, it is also preferable to provide a cooler between each gas compressor. Thereby, it contributes to smooth pressurization by a compressor by cooling the pressurized gas suitably with a cooler. Gaseous fuel (high-pressure gas) is supplied to the main engine 5 via the check valve 50 and the valve 51 similarly to FIG. 2 . Further, from between the second-stage gas compressor 41 and the third-stage gas compressor 42, a pipe is installed in an auxiliary engine such as the power generation engine 6, and an on/off valve is installed in this pipe, so that a part of gaseous fuel It is preferable to supply through the check valve 60 and the valve 61 to an auxiliary engine such as the power generation engine 6 . Thereby, a part of gaseous fuel sent to a main engine can be ensured as driving fuel of auxiliary engines, such as a power generation engine.

As shown in FIG. 3, in the maintenance management system of the marine compressor, the sensor 80 is attached to the inlet part of the 1st stage gas compressor 40 of the gas compressor 4 which pressurizes the gaseous fuel supplied, and the outlet part is equipped with a sensor 81 , is pressurized by the first-stage gas compressor 40 , and the gaseous fuel that flows out flows into the second-stage gas compressor 41 . Sensors 82, 83, 84, 85 at each outlet of the second stage gas compressor 41, the third stage gas compressor 42, the fourth stage gas compressor 43, and the fifth stage gas compressor 44, respectively ) is installed.

The sensor 80 measures the gas pressure and flow rate at which the boil-off gas 12 from the LNG tank 10 that is loaded on the ship is introduced from the inlet of the first-stage gas compressor 40 . In addition, each of the sensors 81 , 82 , 83 , 84 , 85 is a second stage gas compressor 41 , a third stage gas compressor 42 , a fourth stage gas compressor 43 , and a fifth stage gas compressor 44 . ), measure the gas pressure and flow rate of the gaseous fuel pressurized by the gas compressor of each stage.

In the driving state, each measurement value data is always acquired, and each acquired measurement value data is stored in the ship condition monitoring server 101, and can be transmitted to the ground condition diagnosis server 102 every predetermined time.

In this embodiment, as shown in FIG. 4, the FGSS apparatus with which a ship is equipped may be equipped with the hydraulic pump 2 and the gas compressor 4 both. In this case, for example, boil-off gas, which is boil-off gas from the LNG tank, is pressurized using the gas compressor 4 and used as fuel, and when the boil-off gas is insufficient, LNG pressurized using the hydraulic pump 2 is It can be used as fuel. The maintenance management system of the marine compressor described below is in the FGSS apparatus equipped with both the hydraulic pump 2 and the gas compressor 4, and also the FGSS apparatus equipped with either the hydraulic pump 2 and the gas compressor 4 can be applied.

The ship condition monitoring server 101 includes a data acquisition unit 111 that always acquires measurement data from various sensors mounted on the FGSS device provided on the ship, a ship database 121 that stores measurement data, and the measurement data. A transceiver 131 is provided that transmits to the ground condition diagnosis server 102 and receives the diagnosis data from the ground condition diagnosis server 102 .

The ship condition monitoring server 101 acquires the measured values measured by the sensor group 7 of the various sensors 70 to 75 by the data acquisition unit 111, and stores the acquired measurement data in the ship database 121, The transmission/reception unit 131 transmits the data to the ground state diagnosis server 102 every predetermined time. Moreover, in the case of the gas compressor 4, the data acquisition part 111 acquires the measured value from the sensor group 8 of the various sensors 80-85. Hereinafter, since it is the same as the case of a hydraulic pump, the description is cited and abbreviate|omitted.

As for the storage data size of the measurement data of the ship database 121 with which the ship condition monitoring server 101 is equipped, for example, data for a predetermined period is stored, and then the data exceeding the predetermined period is stored, It is preferable that the existing data is overwritten.

The ground condition diagnosis server 102 includes a transceiver 112 that receives measurement data from the ship condition monitoring server 101 , analyzes the measurement data, and transmits the analysis result to the ship condition monitoring server 101 . do.

In addition, the ground state diagnosis server 102 includes a group of measurement data previously acquired by past vessel navigation regarding the hydraulic pressure and flow rate data, a pump code of the hydraulic pump, and the start time and use of the hydraulic pump. There is provided a ground database 122 in which basic data of the hydraulic pump including the life period, maintenance history, and parts replacement history, and a data library in which historical data of the damaged part and damaged time of the hydraulic pump are stored are stored.

Furthermore, the data library stored in the above-mentioned ground database 122 is a data library for a ship using liquid fuel, and is described as an example of a hydraulic pump that pressurizes liquid fuel. It is desirable to save it as a data library. Moreover, the same applies to the case of the hybrid type shown in Fig. 4 . That is, it is preferable to store various data libraries in the ground database 122 according to the type of ship.

A data library of a ship using liquid fuel stored in the ground database 122 will be described as an example based on FIGS. 5 to 8 .

5 : is a figure which shows an example of the measurement data group acquired by navigation of the past ship, FIG. 6 is a figure which shows an example of the basic data of a hydraulic pump, and FIG. 7 : The maintenance history which performed maintenance in the past ship. It is a figure which shows an example, and FIG. 8 is a figure which shows an example of the damage history which component damage generate|occur|produced in the past ship.

As shown in Fig. 5, the measurement data group is the measurement data transmitted from the ship condition monitoring server 101 every hour acquired in the past navigation of the ship, for example, the measurement data for 24 hours a day is hourly, Hydraulic data and flow data are stored in correspondence. It is preferable that this data respond|corresponds according to the kind of a ship using liquid fuel, a ship using gaseous fuel, or a ship using both liquid fuel and gaseous fuel, for example. In addition, it is preferable to make it correspond to a ship ID for identifying a ship to be described later. Thereby, the fluctuation|variation of the measurement data of the component damage time mentioned later and the time before and after the time of a component damage can be used for an analysis.

In the data library, as shown in FIG. 6 , a vessel ID identifying a vessel to be managed, a pump code of a hydraulic pump provided in the vessel, a manufacturer of the hydraulic pump, the start time of use, and the service life period of the hydraulic pump; Basic data of the relevant hydraulic pump is stored as a data library. Thereby, it is stored in the data library so that the specification and manufacturer of the hydraulic pump mounted on a ship can be specified. In this embodiment, the description is given as an example of a hydraulic pump, but in the case of a gas compressor, in the case of a hybrid type of a hydraulic pump and a gas compressor, as the basic data of the gas compressor, the pump code of the hydraulic pump, the compressor code of the gas compressor, etc. It is preferable to store it in correspondence with the ship ID.

In the data library, maintenance history information related to the hydraulic pump code, ship ID, use start time, service life period, maintenance history, and parts replacement history as shown in FIG. 7 is stored as a data library. Thereby, the use history of a hydraulic pump can be traced.

Furthermore, in the data library, as shown in FIG. 8 , the hydraulic pump code, the ship ID, the damaged part, and the damage history of parts related to the damage time are stored as a data library. Thereby, the correspondence relationship between the past measurement data regarding navigation and the time of component damage can be derived. That is, it becomes possible to use the fluctuation|variation of measurement data accompanying a component damage, etc. for an analysis.

The ground condition diagnosis server 102 includes data as shown in Figs. 5 to 8 in the data library, operates the analysis program provided in the ground condition diagnosis server 102, and operates the ship condition monitoring server 101 ), it is possible to predict equipment damage and parts replacement time from the measurement data received.

It is preferable that the state diagnosis server 102 on the ground further has a state diagnosis model.

The state diagnosis model is an automatic diagnosis program by AI, and can analyze the measurement data received from the ship state monitoring server 101 by the state diagnosis model, diagnose the equipment state, and output the diagnosis result.

An example of data analysis by the state diagnosis model will be described.

It is preferable that the condition diagnosis model be trained to establish a normal range criterion based on the correlation between the respective pressures and temperatures of the inlet and outlet of the hydraulic pump. As the learning data to be learned, for example, as shown in FIG. 5 , measurement data of the pressure and temperature of a ship equipped with a hydraulic pump of the past can be used.

In addition, it is preferable that the state diagnosis model also constructs the same correlation between pressure and flow rate.

In this case, if a state exceeding the normal reference range in either one of the pressure and the flow rate, or a state exceeding the normal reference range in both, is detected, the damaged site can be specified.

Furthermore, in the present embodiment, it is preferable that the ground state diagnosis server 102 includes, in a data library, the use start time, service life period, and parts replacement frequency of the hydraulic pump of the same type in the past (not shown). Thereby, the tendency of the damaged site|part by the hydraulic pump of the same type, ie, the site|part which a load is easy to generate|occur|produce can be grasped|ascertained. In this case, it is also desirable to provide the data library with information such as maintenance history and the like in the state, and the situation and climate of the sea area around the time of occurrence of the damaged part. It is not necessary to provide the data library with respect to the conditions of the sea area, climate, and the like, and it is sufficient that there is a structure in which information can be obtained from an external organization or the like.

Further, in the present embodiment, the state diagnosis can also be expressed by a state index or the like. The state index is, for example, using a 10-step index, 1-4 is a normal state, 5-7 is a caution state, and 8-10 are a dangerous stage, and these It can be used when displaying the analyzed results based on

Furthermore, it is also preferable to use a data library including the above-mentioned maintenance history, service life period, parts replacement frequency, and the like, in the calculation of the correction value for calculating the condition index.

Therefore, the ground condition diagnosis server 102 stores the measurement data received from the ship condition monitoring server 101 in the ground database 122 according to the type of the FGSS device of the ship on which the ship condition monitoring server 101 is mounted. It can be analyzed based on the necessary information that has been constructed.

The operation|action of the maintenance management system of the marine compressor which concerns on this embodiment is demonstrated based on FIG.

It is a figure which shows an example of the process flow of the maintenance management system of the marine compressor which concerns on this embodiment.

As shown in FIG. 9, first, the ship condition monitoring server 101 acquires measurement data from the sensor attached to the FGSS apparatus of a ship (S1).

Next, the ship condition monitoring server 101 stores the measurement data acquired from the sensor in the ship database 121 and transmits the measurement data to the ground condition diagnosis server 102 at predetermined time intervals (S2).

Then, the ground state diagnosis server 102 stores the received measurement data in a predetermined format in the ground database 122 and interprets the measurement data with reference to the data library (S3).

Then, the ground state diagnosis server 102 determines whether the hydraulic pump is likely to be damaged, and if there is a risk of damage, predicts the damaged portion and predicts and diagnoses the possibility of damage (S4).

In the present embodiment, the diagnosis result indicates the possibility of damage as a ratio, and a signal instructing to perform inspection and maintenance of the predicted damaged area in the order of the highest possibility of damage during inspection/maintenance performed on a ship, etc. You can also create

Moreover, in this embodiment, when a damaged part is predicted, it is also preferable to generate|occur|produce the signal which instructs the inspection and maintenance of the to-be-replaced with respect to the predicted damaged part to the ship condition monitoring server 101. FIG.

Then, the ground condition diagnosis server 102 transmits the predictive diagnosis including the predicted damaged part to the ship condition monitoring server 101 (S5).

Then, the ship condition monitoring server 101 displays the received predictive diagnosis together with the measurement data (S6).

In this embodiment, the ship condition monitoring server 101 instructs an operator to carry out inspection and maintenance based on the inspection instruction for inspection and maintenance, and memorize|stores the work report data of the performed inspection and maintenance, and the state diagnosis server on the ground It is also desirable to transmit to (102).

Based on the received work report data, the ground condition diagnosis server 102 sends an instruction for securing replacement parts to a manufacturer or the like handling replacement parts (not shown) on the ground to deliver to the port where the ship is scheduled to call. It is preferable that a structure for carrying out the preparation is constructed.

Thereby, an operator can confirm the predictive diagnosis and measurement data displayed by the ship condition monitoring server 101, and it becomes possible to grasp|ascertain the accurate state of the FGSS apparatus of a ship by visual observation.

Furthermore, based on the predictive diagnosis, it is possible to instruct the ship condition monitoring server 101 for inspection and maintenance, and based on the inspection and maintenance work report data that is the inspection and maintenance result, it is possible to prepare for delivery of necessary replacement parts.

In this embodiment, although demonstrated as the example of a hydraulic pump, in the case of a gas compressor, the case of the hybrid type of a hydraulic pump and a gas compressor can be processed similarly.

Furthermore, it is preferable that the structure in which the ship-board data accumulated in the present system can be browsed by the certification authority of the ship equipment with the permission of the user is constructed. Thereby, it becomes possible to confirm the condition of a ship before an inspector visits a ship, and it becomes possible to shorten the inspection time on a ship.

1: Maintenance management system
2: hydraulic pump
20 ~ 22: 1st ~ 3rd actuator
3: Vaporizer
4: gas compressor
40 to 44: 1st stage to 4th stage gas compressor
5: Main engine
50: check valve
51: valve
6: Generator
60: Check valve
61: valve
7: Sensor group
70, 71, 72, 73, 74, 75: sensor
8: sensor group
80, 81, 82, 83, 84, 85: Sensor
10：LNG tank
12: Boil off gas
100: communication network
101: Status monitoring server
111: data acquisition unit
121：Ship database
131: Transceiver
102: Health diagnosis server
112: Transceiver
122: terrestrial database

Claims (4)

Measured data of hydraulic pressure and flow rate measured by sensors mounted on the inlet and outlet of each actuator of a hydraulic pump that pressurizes LNG, which is the ship’s cargo, into liquid fuel for propulsion of the ship and/or the LNG generated from the A ship condition monitoring server for acquiring measurement data of gas pressure and flow rate measured by sensors mounted on the inlet and outlet parts of each stage of a gas compressor that compresses boil-off gas as gas fuel for propulsion of the ship;
A group of historical measurement data relating to the hydraulic pressure and flow rate data, a pump code of the hydraulic pump, and basic data of the hydraulic pump including a start time, service life period, maintenance history, and parts replacement history of the hydraulic pump; The historical data of the past damage part and damage time of the hydraulic pump are stored, and the past measurement data group related to the gas pressure and flow rate data, the compressor code of the gas compressor and the use start time of the gas compressor, the service life period, A data library is provided in which gas compressor basic data including maintenance history and parts replacement history, and historical data of past damaged parts and damaged times of the gas compressor are stored, and analysis based on the data library from the acquired measurement data and a condition diagnosis server on the ground that predicts the damaged part of the hydraulic pump and/or the gas compressor by executing it,
The ship condition monitoring server and the condition diagnosis server are connected through a communication network,
The ship condition monitoring server transmits the measurement data of each part measured to the condition diagnosis server every predetermined time,
The condition diagnosis server refers to the data library and builds a structure for predicting a damaged area based on the measurement data. The method of claim 1,
When the condition diagnosis server predicts the damaged portion, the maintenance management system for a marine compressor constructs a structure for instructing the ship condition monitoring server to inspect and repair the exchanged item for the predicted damaged portion. 3. The method of claim 2,
The said ship condition monitoring server transmits to the said condition diagnosis server while carrying out an inspection based on the instruction|indication of the said inspection and maintenance, and memorizing|storing the work report data of the performed inspection,
The condition diagnosis server is a maintenance management system for a marine compressor that secures replacement parts based on the received work report data. 4. The method of claim 1, 2 or 3,
A maintenance management system for marine compressors in which the accumulated ship data can be viewed by the ship equipment certification body.

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