1. checking
In order to discover the possible defects or hidden dangers of the equipment and devices in time, the relevant personnel shall observe, inspect and record the equipment and devices under their jurisdiction regularly or irregularly according to the inspection (or inspection) standards of the equipment.
Note 1: In order to respect the development history, traditional culture and habits of enterprises, the term spot inspection can be understood as "spot inspection, inspection, inspection, post inspection". The method of spot inspection is usually a combination of qualitative inspection and quantitative inspection. Enterprises can establish the operation specification and process of spot inspection according to needs, including inspection route, inspection scope, inspection items, inspection standards and requirements, inspection cycle, inspection responsibility division, record requirements, etc.
Note 2: Spot inspection is a scientific management method to grasp the running status of equipment in time and guide the maintenance of equipment status. The purpose is to find equipment defects or hidden dangers through spot inspection, incorporate them into the maintenance plan, and eliminate problems in time within the planned time to prevent hidden dangers from developing into faults, so as to ensure the safe and stable operation of equipment.
2. Inspection:
In order to improve safety and reliability, and timely discover possible defects or hidden dangers of equipment and devices, operators carry out regular observation, inspection and record of equipment and devices within the jurisdiction.
3. the spot checking of equipment
Equipment spot inspection is a kind of equipment management method to check equipment regularly with the help of human senses and detection tools according to pre-established technical standards.
Other explanations: Diagnose the deterioration trend of equipment control point status and accuracy through the five senses or with the help of common tools and instruments, and propose the spot inspection behavior such as improvement countermeasures and fixed repair plans. Including the implementation of 5S, the implementation of fastening, adjustment, lubrication and other basic work.
4. precise spot checking
Precision spot inspection refers to the comprehensive testing and inspection of the equipment with testing instruments and meters, or the use of diagnostic technology, special instruments, tools or other special methods to determine the vibration, temperature, crack, deformation, insulation and other state quantity of the equipment without disassembling the equipment, and the analysis, comparison and judgment of the measured data comparison standards and historical records. A test method to determine the technical condition and degree of deterioration of equipment.
the measurement of the precision and operation of equipment. The measurement of the precision and operation of equipment
The accuracy and performance test of the equipment is to carry out comprehensive accuracy test and performance index test of the equipment according to the preset period and standard, calculate the technical and economic indicators and performance indicators such as gas and steam consumption, heat consumption, efficiency, power supply coal consumption (water consumption), analyze the deterioration point, and evaluate the performance of the equipment.
6. three parts affirmance and two affirmance
Tripartite confirmation refers to a working method in the implementation of point verification repair management, which is carried out jointly by the point prosecutor, the maintenance party and the operator in order to meet the needs of safety measures and quality control. When only one of the two parties of the prosecution, the maintenance party and the operator is required to conduct on-site confirmation, it is called "two-party confirmation".
7. the four maintenances of equipment
The "four maintenance" of the equipment refers to keeping the appearance of the equipment clean, maintaining the structural integrity of the equipment, maintaining the performance and accuracy of the equipment, and maintaining the degree of automation of the equipment.
8. the management value of equipment
Equipment management value refers to the value of quantitative management of equipment, and is a general term for the quantity (quality and quantity), degree, and operating parameters and status of each part, part, and project of the equipment. It includes: the material of the parts and the performance of the material, the degree of heat treatment, the work difference, the maintenance cycle of the equipment, the service life of the parts, the brand of the grease, the various parameters and the value of the state of the equipment during the operation.
9. condition based maintenance (CBM)
Detect and collect information and data reflecting machine status.
Note: How a failure or failure occurs, the machine condition deteriorates. The state-based maintenance system is usually called state-based maintenance or condition-based maintenance in China. This maintenance system is developed with the progress of fault diagnosis technology. By measuring various parameters of the equipment, the actual state of the equipment can be reflected at any time. The measured parameters can be alerted during a sufficient advance period for appropriate maintenance measures to be taken. The maintenance operation of this preventive maintenance method generally has no fixed interval, and the maintenance technicians make judgments according to the changing trend of the monitoring data, and then determine the maintenance plan of the equipment.
10. checking route map
The point inspection personnel of the equipment according to the scope of their own point inspection objects (equipment), prepare the shortest route, easy to remember, and include all the needs of the point inspection equipment, called the point inspection road map.
11. checking standard
Refers to the document specifying the technical requirements for spot inspection operations. The content of point inspection standards includes: point inspection equipment, parts, criteria, status, tools, cycle, division of labor, records and other requirements.
checking of performance management. Checking of performance management
The purpose of spot inspection performance management is to revise and improve the target of spot inspection through regular analysis of spot inspection performance, find out the weak link or difficult to maintain parts of equipment, and put forward improvement suggestions to improve the efficiency of equipment spot inspection.
13. P-F interval P-F interval
The potential failure of equipment refers to some omen before the failure occurs. It is an observable, detectable, and identifiable physical state, which indicates that a possible failure is about to occur. A functional failure means that the device has lost some specified function. From the point of view of maximizing the reliability and operating efficiency of the equipment, maintenance activities are most effective when the equipment has entered a potential failure period but has not yet developed a successful failure. The interval between potential failure and functional failure of a device is called the P-F interval. Controlling the deterioration trend of equipment largely depends on the control of the P-F interval of equipment.
14. Technical status configuration
The functional and physical characteristics specified in the technical documents and achieved in the equipment.
15. configuration identification of technical status identification
Refers to the activity of determining the equipment structure, selecting the technical status item, documenting the physical and functional characteristics and interfaces of the technical status item and subsequent changes, and assigning identifying features or codes to the technical status item and corresponding files.
16. Technical status control configuration control
Evaluate, coordinate, approve or disapprove, and implement all activities related to changes to the technical status item, including changes to the technical status document and deviations and overshoots that affect the technical status, after the technical status document has been formalized.
17. technical conditions of equipment
Refers to the working capacity of the equipment, including performance, accuracy, efficiency, motion parameters, safety, environmental protection, energy consumption and other conditions and changes.
18. technical conditions management of plant
Collect, analyze and process the information of the change of the technical status of the equipment by means of inspection and monitoring, detect or predict the functional failure and failure of the equipment early, and take timely maintenance or replacement countermeasures to ensure that the equipment is in a good technical state.
equipment condition monitoring and diagnostic technology management. Equipment condition monitoring and diagnostic technology management
Collect data and signals of operating equipment by various means and human five senses, analyze and judge the deterioration trend of equipment, fault location, cause and predict the change and development, put forward preventive measures to prevent and control the occurrence of prominent faults, and provide a reliable basis for the management of equipment maintenance.
20. configuration status accounting
Formal documentation and reporting of identified technical status documents, proposed change status, and implementation status of approved changes.
21. (Vibration condition monitoring) permanently installed system
This type of system is a permanently secure system for sensors, signal adapters, data processing and data storage devices. Data acquisition can be continuous or periodic. Permanent security systems are often used on expensive and critical machines or on machines that hold complex monitoring tasks.
22. (Vibration condition monitoring) semi-permanen
A semi-permanent system is an intersection between a permanent system and a portable system. In this type of system, the sensors are usually permanent, while the data acquisition components are intermittently connected.
23. (Vibration condition monitoring) the portable monitoring system
Portable monitoring systems function similarly to "continuous" on-line systems, but are less cumbersome and less expensive. For this configuration, a portable data collector is used to record data automatically or manually periodically. Portable monitoring systems are commonly used to manually record measurement results at a certain time interval and cycle at a pre-selected position of the machine. The data is usually entered in situ and stored on a portable data collector, where initial rough analysis can be performed immediately. However, for more in-depth processing and analysis, the data needs to be downloaded to the computer with the corresponding software.
24. attenuation attenuation
Usually refers to the weakening of the signal strength due to the distance the signal travels or the density of the medium through which it travels.
25. background noise
Unwanted noise in a signal that cannot be attributed to a specific cause.
The ratio of the maximum value to the minimum value that can be detected by the sensor or analyzer.
Note: Dynamic range is usually expressed in decibels. The decibel is 20 times the base 10 logarithm of the ratio of the maximum to the minimum.
26. thermography
Infrared imager is used to measure the infrared energy radiated by the surface of the target, and the result is converted into equivalent surface temperature, and the temperature change can be measured at a distance without contact with the target.
27. temperature difference
The difference in surface temperature of different equipment under test or different parts of the same equipment under test.
28. relative temperature difference
The percentage of the difference in temperature rise between the two corresponding measuring points and the ratio of temperature rise at the higher temperature point.
29. turboelectric noise
Noise in a shielded cable due to bending or movement of the cable.
30. The feature features
Data items derived from raw or processed parameters or external observations.
31. Go offline
(Condition monitoring and diagnosis) Periodic or intermittent data collection.