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ASME TDP 1 2013

ASME TDP 1 2013

$98.04

ASME TDP-1 Prevention of Water Damage to Steam Turbines Used for Electric Power Generation: Fossil-Fuel Plants

Published By Publication Date Number of Pages
ASME 2013 40
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This Standard provides recommended practices for the prevention of water damage to steam turbines used in fossil-fuel-fired electrical power generation. The practices address damage due to water, wet steam, and steam backflow into a steam turbine. The practices are applicable to conventional steam cycle, combined cycle and cogeneration plants. The practices cover design, operation, inspection, testing, and maintenance of those aspects of the following power plant systems and equipment concerned with preventing the induction of water into steam turbines and associated systems and equipment: (a) motive steam systems; (b) steam attemperation systems; (c) turbine extraction/ admission systems; (d) feedwater heaters; (e) turbine drain systems; (f) turbine steam seal systems; (g) start-up systems; (h) condenser steam and water dumps; (i) steam generator sources. Any connection to the turbine is a potential source of water either by induction from external equipment or by accumulation of condensed steam. The sources treated herein specifically are those found to be most frequently involved in causing damage to turbines. Although water induction into the high and intermediate pressure turbines have historically been recognized as the most damaging, experience has shown that water induction in low pressure turbines can cause significant damage.

PDF Catalog

PDF Pages PDF Title
5 CONTENTS
6 FOREWORD
7 COMMITTEE ROSTER
9 1 SCOPE
2 CRITERIA
2.1 Basis
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
10 2.2 Definitions
2.2.1 General
2.2.2 Systems
2.2.3 Equipment
12 2.2.4 Control System
2.3 Symbol Legend
2.4 Device Identification Letters
2.5 References
3 DESIGN
3.1 Steam Generators
3.1.1
3.1.2
Tables
Table 1 Symbol Legend
13 3.1.2.1
3.1.2.2
3.1.3
3.1.4
3.1.5
3.2 Steam Attemperators
3.2.1
Table 2 Device Identification Letters
14 Figures
Fig. 1 Typical Flash Tank/Separators Arrangement: Local Control System
15 Fig. 2 Typical Flash Tank/Separators Arrangement: Integrated Control System
16 3.2.2
3.2.3
Fig. 3 Typical Leveling System Arrangement: Integrated Control System
17 3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
Fig. 4 Typical Attemperator System
18 3.2.9
3.2.10
3.2.11
3.2.12
3.2.13
3.2.14
3.3 Motive Steam Systems
3.3.1
3.3.2
3.3.3
19 3.3.4
3.3.5
3.3.6
3.3.7
Fig. 5 Typical Drain System With Redundant Level Elements
20 3.3.8
3.3.9
3.3.10
3.3.10.1
3.3.10.2
3.3.10.3
3.3.10.4
3.4 Process Steam Lines
3.4.1
21 3.4.2
3.4.3
3.4.4
3.4.5
3.5 Closed Feedwater Heaters and Extraction Systems
3.5.1
3.5.1.1
3.5.1.2
22 Fig. 6 Typical Heater Steam Side Isolation System: Local Control System
23 Fig. 7 Typical Heater Steam Side Isolation System: Integrated Control System
24 3.5.1.3
3.5.1.4
3.5.2
Fig. 8 Typical Heater Tube Side Isolation System: Local Control System
25 3.5.3
3.5.4
3.5.5
Fig. 9 Typical Heater Tube Side Isolation System: Integrated Control System
26 3.5.6
3.5.7
3.5.8
3.5.9
3.5.10
3.5.11
3.5.12
3.5.13
3.5.14
3.5.15
3.5.16
3.6 Direct Contact Feedwater Heaters and Extraction Systems
3.6.1
27 Fig. 10 Typical Deaerator Arrangement With Drain System: Local Control System
28 Fig. 11 Typical Deaerator Arrangement With Drain System: Integrated Control System
29 3.6.2
3.6.3
3.6.4
Fig. 12 Typical Deaerator Arrangement With Inlet Isolation: Local Control System
30 3.6.5
3.6.6
3.6.7
3.6.8
3.7 Drain Systems: Turbine and Cycle Steam Piping
Fig. 13 Typical Deaerator Arrangement With Inlet Isolation: Integrated Control System
31 3.7.1
3.7.2
3.7.3
3.7.4
3.7.5
3.7.6
3.7.7
3.7.8
3.7.9
3.7.10
3.7.11
3.7.12
3.7.13
3.7.14
3.7.15
3.7.16
3.7.17
32 3.7.18
3.7.19
3.7.20
3.7.21
3.7.22
3.7.23
3.7.24
3.7.25
3.8 Condenser Steam and Water Dumps
3.8.1
33 3.8.2
3.8.3
3.8.4
3.8.5
3.8.6
3.8.7
3.8.8
3.9 Turbine Steam Seal Systems
3.9.1
34 3.9.2
3.9.3
3.9.4
3.9.5
3.9.6
3.9.7
Fig. 14 Main Turbine: Typical Steam Seal Arrangement
35 3.9.8
3.9.9
3.9.10
3.10 Control Systems and Instrumentation
3.10.1
3.10.2
3.10.3
4 OPERATION
36 4.1 Motive Steam
4.1.1
4.1.2
4.1.3
4.1.4
4.2 Main Steam Turbine
4.2.1
4.2.2
4.2.3
37 4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.3 Turbine Steam Seal System
4.3.1
4.3.2
4.4 Attemperators
4.5 Feedwater Heaters, Extraction Systems, and Process Steam Extractions
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
5 TESTING, INSPECTION, MAINTENANCE, AND MONITORING
5.1 Quarterly Testing and Inspection
5.1.1
38 5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.1.7
5.1.8
5.2 Inspection and Maintenance During Planned Unit Outages
5.2.1
5.2.2
5.2.3
5.3 Monitoring
6 CONCLUSION

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