Replacement of thrust bearing with improved type CT-S-023
Mar. 7, 2012
CT-S-023 / 796-94435
REASON FOR SUGGESTION:
Recently the output demand of the turbine and compressor is increasing. So, we have developed thrust bearing for higher load.
The improvement is as follows.
- Direct lubrication nozzle is applied to supply necessary oil, and used oil in the bearing housing is quickly drained.
- Copper alloy is applied as back metal of bearing pad to improve cooling capability.
- Off set of the bearing pad pivot is applied to increase oil film thickness, and has improved the load ability.
- The shape of leveling plate was improved to reduce friction.
A sufficient improvement of the bearing metal temperature can be achieved by these modifications.
DETAILS OF SUGGESTION:
The outline of modification is as follows.
- When J type thrust bearing is installed, new K type bearing can be fit in the existing space because axial size is smaller than J type thrust bearing. Bearing housing is needed to be replaced.
- When K type thrust bearing is already used for existing, there is no need for replacing bearing housing.
Modification of drain hole and replacement of bearing are required.
Improved Thrust Bearing
(For High Speed Turbine)
LUBRICATING TYPE
IMPROVED LEVELER (REDUCED FRICTION TYPE)
SUMMARY
HIGH RELIABILITY OF THRUST BEARING
- NON-FLOOD TYPE
- IMPROVED LEVELER
- COPPER ALLOY BACK METAL
- OFF-SET PIVOT
EFFECT OF APPLICATION in Ethylene Plant
技術情報
-
技術トピックス
- Super High Pressure Compressor
- Double Flow Integrally Geared Compressor (DF-IGC)
- MITSUBISHI Solution for LNG
- Value up (Compressors)
-
Value up (Mechanical Drive Steam Turbines)
- Improvement of service life of turbine blade in wet region T-S-002
- Improvement of drain erosion resistance for last stage blade T-E-009
- Repair of damaged rotor journal portion CT-S-025
- Application of diffusion treatment against solid particle erosion T-E-008
- Replacement of thrust bearing with improved type CT-S-023
- Thrust bearing with Ni-plating for ammonia plant CT-S-024
- Replacement with tilting pad bearing T-S-013
- Online washing system T-E-010
- Addition of partial stroke test device for Mechnical Trip Throttle Valve during operation T-S-006
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- 三菱重工技報