Marine diesel generating set health management system and method
By adopting a health management system in marine diesel generator sets, and using vibration collectors and health management software to collect and calculate vibration data for key parts, the problem that traditional diagnosis cannot determine the unit's operating status in advance is solved, and the equipment status prediction and Reminder, improves operating stability.
Patent Information
- Application Number
- CN202310774796.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-27
- Publication Date
- 2024-12-27
AI Technical Summary
Traditional marine diesel generator set diagnosis is mainly fault diagnosis, and the unit operating status cannot be judged in advance, resulting in failure being unable to prevent failures. Only after-maintenance can be carried out, and there is a lack of health status assessment and early warning mechanism.
Using the diesel generator set health management system, including vibration collector and health management software, vibration data is collected in eight key parts of the diesel generator set, three-axis vibration sensors are used to measure, calculate health levels, and real-time through the status display module. Show and remind.
The status prediction and evaluation of diesel generator sets are realized, and reminders can be provided in the early stages of equipment deterioration, improving the stability and reliability of equipment operation.
Smart Images
Figure CN119195902A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to equipment status monitoring and health management system, and more specifically, to a health management system and method for a marine diesel generator set. Background Art
[0002] Traditional marine diesel generator set diagnosis is basically fault diagnosis, that is, dismantling and repairing the diesel generator set after it fails, determining the cause of the failure and handling it. This method cannot determine the operating status of the unit in advance and prevent failures. Only post-maintenance, regular maintenance, and condition-based maintenance can be adopted. Health status assessment is to evaluate the health status of the whole machine by monitoring specific parts of the diesel generator set, so as to grasp the health status of the equipment in advance. Summary of the invention
[0003] In view of the above shortcomings and deficiencies, the present invention provides a marine diesel generator health management system and method, which predicts and judges the status of the equipment according to the calculation results, promptly reminds at the early stage of status deterioration, grasps the operating status of the diesel generator set, and improves the stability of equipment operation.
[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:
[0005] A diesel generator health management system, characterized in that it includes a vibration collector, a PC and a diesel generator health management software. The diesel generator health management software runs on the PC and includes a data acquisition module, a health assessment module and a status display module. The vibration collector is connected to the PC via a network cable to transmit the collected vibration data to the data acquisition module; the health assessment module calculates and assesses the health level of the diesel generator set, and the status display module displays the health level.
[0006] A diesel generator health assessment method is characterized by using the diesel generator health management system, and the specific steps are as follows:
[0007] 1) Use a vibration collector to measure the following eight parts of the diesel generator set, such as Figure 1 As shown, the 1# measuring point is the A1 cylinder head of the diesel generator, the 2# measuring point is the A8 cylinder head of the diesel generator, the 3# measuring point is the B1 cylinder head of the diesel generator, the 4# measuring point is the B8 cylinder head of the diesel generator, the 5# measuring point is the input end bearing of the generator, the 6# measuring point is the free end bearing of the generator, the 7# measuring point is the left base of the generator, and the 8# measuring point is the right base of the generator;
[0008] 2) Connect the vibration collector that has collected data to the PC via a network cable, and obtain the data from the vibration collector through the data acquisition module of the diesel generator health management system;
[0009] 3) The health assessment module reads the collected measurement data of eight parts of the diesel generator set and outputs the health level of the diesel generator set after calculation.
[0010] The diesel generator set health assessment method is characterized in that measurements are performed when the equipment reaches the rated operating condition.
[0011] The method for health assessment of a diesel generator set is characterized in that the vibration sensor used by the vibration analyzer is a three-axis vibration sensor, and vibration measurement is performed in three mutually perpendicular directions at the same measuring point, wherein the direction along the axis of the machine is called "axial" (longitudinal), marked with X; the direction perpendicular to the machine installation surface is called "vertical", marked with Y; the direction perpendicular to the XZ plane is called "lateral", marked with Z.
[0012] The diesel generator set health assessment method is characterized in that the health assessment calculation formula is:
[0013]
[0014] Where: V s The unit is millimeter per second (mm / s), V X 、V Y 、V Z The root mean square value of the vibration velocity in three mutually perpendicular directions, X, Y, and Z, in millimeters per second (mm / s); N X 、N Y 、N Z They are the number of measuring points in the three directions of X, Y and Z respectively.
[0015] The diesel generator health assessment method is characterized in that: the V s , when V s ≤4.5, the health level is assessed as excellent; when 4.5<V s <11.2, the health level is assessed as good; when 4.5<V s When the health level is less than 11.2, the health level is qualified. s When the body temperature is above 28, the health level is assessed as unqualified. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 Schematic diagram of the measurement position of the marine diesel generator set
[0017] Figure 2 The structural diagram and method flow chart of the present invention are DETAILED DESCRIPTION
[0018] like Figure 2 As shown, the marine diesel engine health management system provided by the present invention includes a vibration collector 1, a PC 2 and a diesel generator health management software 3. The diesel generator health management software 3 runs on the PC 2, and includes a data acquisition module 31, a health assessment module 32 and a status display module 33. The vibration collector 1 is connected to the PC 2 via a network cable, and the collected vibration data is transmitted to the data acquisition module 31; the health assessment module 32 calculates and assesses the health level of the diesel generator set, and the status display module 33 displays the health level.
[0019] The marine diesel engine health assessment method provided by the present invention has the following working process: Figure 2 As shown, the vibration collector 1 is used to measure the following eight parts of the diesel generator set, such as Figure 1 As shown, the 1# measuring point is the A1 cylinder head of the diesel generator, the 2# measuring point is the A8 cylinder head of the diesel generator, the 3# measuring point is the B1 cylinder head of the diesel generator, the 4# measuring point is the B8 cylinder head of the diesel generator, the 5# measuring point is the input end bearing of the generator, the 6# measuring point is the free end bearing of the generator, the 7# measuring point is the left base of the generator, and the 8# measuring point is the right base of the generator. The vibration collector 1 that has collected data is connected to the PC 2 through a network cable, and the data of the vibration collector 1 is obtained through the data collection module 31 of the diesel generator health management software 3. The health assessment module 32 reads the measurement data of the eight parts of the diesel generator set collected and evaluates the health level of the diesel generator set. After the evaluation is completed, it is displayed by the status display module.
Claims
1. A diesel generator health management system, characterized in that: It includes a vibration collector, a PC and a diesel generator health management software. The diesel generator health management software runs on the PC and includes a data acquisition module, a health assessment module and a status display module. The vibration collector is connected to the PC via a network cable to transmit the collected vibration data to the data acquisition module; the health assessment module calculates and assesses the health level of the diesel generator set, and the status display module displays the health level.
2. A diesel generator health assessment method, characterized in that: The diesel generator health management system according to claim 1 is adopted, and the specific steps are as follows: 1) Use a vibration collector to measure the following eight parts of the diesel generator set, as shown in Figure 1: diesel generator A1 cylinder head, diesel generator A8 cylinder head, diesel generator B1 cylinder head, diesel generator B8 cylinder head, generator input end bearing, generator free end bearing, generator left base, generator right base. 2) Connect the vibration collector that has collected data to the PC via a network cable, and obtain the data from the vibration collector through the data acquisition module of the diesel generator health management system. 3) The health assessment module reads the collected measurement data of eight parts of the diesel generator set and outputs the health level of the diesel generator set after calculation.
3. The diesel generator set health assessment method according to claim 2 is characterized in that: The measurement is carried out when the equipment reaches the rated operating condition.
4. A diesel generator set health assessment method according to claim 2, characterized in that: The vibration sensor used in the vibration analyzer is a three-axis vibration sensor. It measures vibration in three mutually perpendicular directions at the same measuring point. The direction along the axis of the machine is called "axial" (longitudinal) and is marked with X; the direction perpendicular to the machine installation surface is called "vertical" and is marked with Y; the direction perpendicular to the XZ plane is called "lateral" and is marked with Z.
5. The diesel generator set health assessment method according to claim 2 is characterized in that: The calculation formula for the health assessment is: Where: V s The unit is millimeter per second (mm / s), V X 、V Y 、V Z The root mean square value of the vibration velocity in three mutually perpendicular directions, X, Y, and Z, in millimeters per second (mm / s); N X 、N Y 、N Z They are the number of measuring points in the three directions of X, Y and Z respectively.
6. The diesel generator set health assessment method according to claim 2 is characterized in that: According to the V calculated in claim 5 above s , when V s ≤4.5, the health level is excellent; when 4.5<V s ≤11.2, the health level is good; when 11.2<V s ≤28, the health level is qualified. s >28, the health level is unqualified.