Asset Name: CENTRIFUGAL COMPRESSOR

Model Number: LHA-90

Manufacturer: York

Use Online Download centrifugal-compressor-lha-90 Manual
CENTRIFUGAL COMPRESSOR

Total Values by Section

Parts

23

Work order templates

2

Procedures

2

Checklists

2

Asset Package Contents

  • ARM, VANE
  • BEARING KIT
  • BEARING, H.S. FRONT
  • BEARING, H.S. REAR
  • BEARING, L.S. FRONT
  • BEARING, L.S. REAR
  • BEARING, ROD END (HA81 & HA90)
  • BEARING, THRUST
  • BEARING, THRUST, H.S. FORWARD
  • BEARING, THRUST, H.S., REV.
  • BELLOWS SHAFT SEAL
  • BOLT, SHOULDER
  • BRACKET SUPPORT (LOWER PRV)
  • CAP SCREW
  • CAP, FLARE
  • COLLAR, IMPELLER, CLAMPING
  • COLLAR, SHAFT SEAL
  • COLLAR, THRUST, H.S.
  • COLLAR, THRUST, L.S.
  • CONNECTOR, FLARE
  • CONNECTOR, FLARE, MALE
  • COVER, PRV CONTROL SHAFT
  • COVER, SHAFT SEAL

Routine Lubrication and Inspection

  • Inspect and clean the oil sump and surrounding area.
  • Check oil level and add lubricant as necessary.
  • Inspect and replace the oil filter if required.
  • Examine couplings, belts, and pulleys for wear or damage.
  • Check rotating components for excessive heat, vibration, or noise.
  • Inspect inlet and discharge piping for leaks or damage.
  • Tighten all fasteners and check for any signs of leakage.

Major Inspection and Overhaul

  • Disassemble the compressor and inspect all components for wear or damage.
  • Measure and record dimensions of all critical components.
  • Replace any damaged or worn parts, such as bearings, seals, or impellers.
  • Clean and balance all rotating components.
  • Inspect and repair or replace the drive system, including the coupling, belts, and pulleys.
  • Reassemble the compressor and test run to ensure proper operation.

Procedure for Routine Lubrication and Inspection

  • Ensure proper personal protective equipment (PPE) is worn, including gloves, safety glasses, and ear protection.
  • Gather required tools, such as a wrench set, oil container, and clean rags.
  • Estimate time required for inspection based on the size and complexity of the compressor.
  • Step-by-step instructions following the tasks outlined in the work order template.
  • Document all findings, including any issues or concerns.

Procedure for Major Inspection and Overhaul

  • Follow all safety guidelines and PPE requirements.
  • Prepare a detailed plan for disassembly, inspection, and reassembly.
  • Schedule sufficient time for the overhaul, accounting for potential complications or delays.
  • Document all findings, measurements, and replacement parts.
  • Ensure all components are properly reassembled and aligned.
  • Perform a comprehensive test run to verify proper operation and address any issues.

Pre-Maintenance Safety Checklist

  • Confirm that the compressor is properly grounded and bonded.
  • Ensure all electrical components are in good working order.
  • Verify that the compressor is securely anchored and stable.
  • Inspect and maintain fire suppression and ventilation systems.
  • Confirm all access panels and guarding are secure and in place.

Periodic Inspection Checklist

  • Review maintenance records and schedule preventive maintenance as needed.
  • Inspect compressor for unusual sounds, vibrations, or performance issues.
  • Test and calibrate instrumentation and control systems.
  • Monitor and record operating conditions, such as temperature, pressure, and flow.
  • Document all findings and communicate with maintenance personnel.

Frequently Asked Questions

What is a centrifugal compressor and how does it work?

A centrifugal compressor is a type of dynamic compressor that increases the pressure and temperature of a gas by using a spinning impeller to force the gas outward at high velocity. This action causes the gas to rapidly expand, which in turn raises its pressure and temperature.

What does MTTF (Mean Time To Failure) mean in the context of centrifugal compressors?

MTTF, or Mean Time To Failure, is a measure of the reliability of a centrifugal compressor. It represents the average amount of time that a compressor can be expected to operate before it fails. This value is typically calculated based on historical data and is used to help maintenance planners and managers make informed decisions about scheduling maintenance and repairs.

How can maintenance planners and managers extend the life of a centrifugal compressor?

There are several best practices that maintenance planners and managers can follow to help extend the life of a centrifugal compressor, including: regularly inspecting and maintaining the compressor, using predictive maintenance techniques, such as vibration analysis and oil analysis, to identify potential issues before they become major problems, and implementing a comprehensive maintenance strategy that includes both reactive and preventive maintenance tasks.

What are some common causes of centrifugal compressor breakdowns or failures?

Some common causes of centrifugal compressor breakdowns or failures include: improper operation and maintenance, lack of lubrication, contamination of the lubricating oil, excessive wear on the impeller or other moving parts, and damage to the compressor casing or other structural components. Regular inspections and maintenance can help to identify and address these issues before they lead to a failure.

How can maintenance professionals use mobile CMMS software to improve centrifugal compressor maintenance?

Mobile CMMS (Computerized Maintenance Management System) software can help maintenance professionals to better manage and track the maintenance of centrifugal compressors by providing real-time access to maintenance records, scheduling and tracking of maintenance tasks, and tracking of parts and supplies. This can help to improve the efficiency and effectiveness of centrifugal compressor maintenance, and can also help to reduce costs by minimizing downtime and improving asset availability.

What is the difference between operations maintenance and regular maintenance for centrifugal compressors?

Operations maintenance refers to the day-to-day tasks that are necessary to keep a centrifugal compressor running, such as lubrication and inspections. Regular maintenance, on the other hand, refers to the preventive maintenance tasks that are performed on a regular basis, such as replacing worn parts or performing routine inspections, to help extend the life of the compressor and prevent failures. Both operations maintenance and regular maintenance are important for ensuring the safe, reliable, and efficient operation of a centrifugal compressor.

What is deferred maintenance and how can it impact a centrifugal compressor?

Deferred maintenance refers to the practice of postponing or delaying maintenance tasks, typically due to budget constraints or other factors. While it may be tempting to defer maintenance in order to save money, this can ultimately lead to increased costs and reduced efficiency. For example, deferred maintenance on a centrifugal compressor can lead to equipment reliability concerns, increased downtime, and even catastrophic failures. It is important to prioritize maintenance tasks and allocate sufficient resources to ensure that centrifugal compressors are properly maintained.

What is the formula for calculating MTTF (Mean Time To Failure) for a centrifugal compressor?

The formula for calculating MTTF (Mean Time To Failure) for a centrifugal compressor is: MTTF = (Total operating time) / (Number of failures). This can be used to estimate the average amount of time that a compressor can be expected to operate before it fails, based on historical data. It is important to note that this is just an estimate, and actual MTTF values may vary depending on a number of factors, including the specific compressor model, operating conditions, and maintenance practices.

What safety risks are associated with improper maintenance of centrifugal compressors?

Improper maintenance of centrifugal compressors can create a number of safety risks, including: the risk of fire or explosion due to the buildup of flammable gases, the risk of injury due to the release of high-pressure gases or fluids, the risk of damage to the compressor or other equipment, and the risk of environmental damage due to the release of harmful substances. It is essential to follow all recommended maintenance procedures and to use only qualified personnel to perform maintenance tasks on centrifugal compressors to minimize these risks.

What software tools are available to help with predictive maintenance of centrifugal compressors?

There are a number of software tools available to help with predictive maintenance of centrifugal compressors, including: vibration analysis tools, which can help to identify potential issues with the compressor before they become major problems, oil analysis tools, which can help to detect contamination or other issues with the lubricating oil, and predictive maintenance scheduling tools, which can help maintenance planners and managers to schedule maintenance tasks based on the predicted likelihood of failure. These tools can help to improve the efficiency and effectiveness of centrifugal compressor maintenance, and can also help to reduce costs by minimizing downtime and improving asset availability.