1、MIL-T-27bOOD 28 777770b 0428b74 L T * c I MIL-T- 17600D (SHIPS) 88 March 1968 UPERSEDING (See 6.5) _- MIL-T- 17600C (SHIPS) _- - 21 September 1966 MILITARY SPECIFICATION TURBINES , STEAM, PROPULSION NAVAL SHIPBOARD 1. SCOPE 1.1 Scope.- This specification covers propulsion steam turbines for Naval sh
2、ips. If 1.2 Classification.- Steam turbines shall be of the following types as specified (see 6.2.2). Type I - Single-casing, single-element (see 3.5.5.1). Type II-q - Two casings, two-elements, straight-through (see 3.5.5.2). Type II-B - Two casings, two-elements, external by-pass (see 3.5.5.3). Ty
3、pe II-C: - Two casings, two-elements, internal by-pass (see 3.5.5.4). Type III - Two casings, three-elements, series-parallel (see 3.5.5.5). 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of the specificat
4、ion to the extent specified herein. SPECIFICATIONS FEDERAL QQ-S-624 - Steel Bar, Alloy, Hot Rolled and Cold Finished, (General Purpose). QQ-S-631 - Steel, Bar, Carbon, Hot RolIed, (Special Quality). QQ-S-634 - Steel, Bar, Carbon, Cold Finished, (Standard Quality). QQ-S-635 - Steel Plate, Carbon. QQ-
5、5-691 - Steel Plate, Carbon-Silicon, Carbon Molybdenum and hanganese- QQ-S- 763 - Steel , Bars , Wire, Shapes, and Forgings, Corrosion-Resisting. QQ-5-766 - Steel Plates, Sheets and Strip - Corrosion Resisting. QQ-T-390 - Tin Alloy Ingots and Castings and Lead Alloy Ingots and Castings Molybdenum Al
6、loys Hot Rolled, (Marine Boiler Quality). (Antifriction Metal) For Bearing Applications. EIIILITARY JAN-I-562 - Wire, Nickel-Alloy, Spring (Heat-Resistant and Age-Hardenable) . ML-S-860 - Steel: Forgings for Steam Turbine Rotors, MIL-S-861 - Steel Bars, Corrosion Resisting, Naval Steam Turbine Parts
7、 Use. MIL-S-870 - Steel, Alloy, Molybdenum Alloy. MIL-S-890 - Steel: Forgings and Bars for Hulls, Engines, and Ordnance (Heat Treated). MIL-S-901 - Shock test, H.I. (High-Impact); Shipboard Machinery, Equipment and Systems, Requirements For. WIL-D-1000 - Drawings, Engineering and Associated Lists, M
8、IL-S-1222 - Studs, Continuous Thread (Bolt Studs); Nuts, Plain, Hexagon; and MIL-C-5015 - Connectors, Electric, “AN“ Type MIL-N-7786 - Nickel-Chromium Alloy, Sheet and Strip, Age-liardenable Annealed. MIL-Q-9858 - Quality Program Requirements. MIL-M-9868 - Microfilming of Engineering Documents, 35Mt
9、4, Requirements For, MIL-C-9877 - Cards , Aperture. MIL-M-15071 - Manuals , Equipment and Systems. MIL-S-15083 - Steel Castings. MIL-P-15137 - Provisioning Technical Documentation for Repair Parts For MIL-C-15345 - Castings, Nonferrous, Centrifugal. MIL-S-15464 - Steel, Alloy, Chromium-Molybdenum, C
10、astings. MIL-L-15719 - Lubricating Grease (High-Temperature, Electric blotor, Ball and Roller Bearings). MIL-S-16216 - Steel Plate, Alloy, Structural, High Yield Strengtti (HY-80 and HY-1001. Steel Bars, Round-High Temperature Service. Electrical and Mechanical Equipment (Naval Shipboard Use). MIL-S
11、-16993 - Steel Castings (12-Percent Chromium), FSC 2825 z 3 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-L7bOOD 28 m 777770b 0928695 3 m r I I t MILITARY (Cont Id) MIL-R-17131 - Rods, Welding, Surfacing. MIL-P-17286 - Propulsion and Auxili
12、ary Steam Turbines and Gears (Including I.1IL-L-17331 - Lubricating Oil, Steam Turbine (Non-Corrosive). MIL-E-17813 - Expansion Joints, Pipe, Packless. MIL-V-18030 - Valves, Control, Air-Diaphragm-Operated. MIL-S-18410 - Steel Bars, Billets and Forgings-Chromium-Molybdenum Alloy. MIL-V-20065 - Valve
13、s, Angle, Pressure Relief, Naval Shipboard, For Steam MIL-S-21427 - Strainer Assemblies, Main Steam, High Pressure (Sizes 4 Inches MIL-T-22051 - Temperature Element, Resistance, Bearing Babbitt. MIL-S-22698 - Steel Plate, Carbon, Structural, For Ships. MIL-S-23966 - Steel Bars, Billets and Forgings
14、- Alloy Nitriding Applica- tion. MIL-S-24093 - Steel Forgings, Carbon and Alloy Heat Treated. MIL-S-24113 - Steel Plates, Carbon Manganese-Heat Treated by Normalizing or Quenching and Tempering. MIL-N-24129 - Nuts, Self-Locking, Hexagon, (Plastic Insert) 250F. MIL-1-24137 - Iron Castings, Nodular Gr
15、aphitic (Ductile Iron) and Nodular Graphitic (Corrosion. Resisting, Austenitic, Low Magnetic permeability) (For Shipboard Application). MIL-W-24270/1 - Well (For Temperature Indicators or Thermal Elements); Repair Parts, Tools, Accessories and Instruments); Packaging of. Service. and Above). Inserti
16、on Length - 2 Inches, Bore - 3/8 Inch, Connection - Socket Weld or Socket Brazed, 3/4 Inch IPS, Maximum Pressure 200 and 3000 PSIG. MIL-N-25027 - Nut, Self-Locking, 250F, 450F, and 800F, 125 KSI FTU, 60 KSI FTU. and 30 KSI FTU. MIL-)I- 38761 - Micrf iming and Photographing of Engineering/Technical D
17、ata and Related Documents: PCAM Card Preparation, Engineering Data Micro-Reproduction System, General Requirements for, Preparation of. DEPARTMENT OF TIIE NAVY General Specification for Ships of the United States Navy. Section 9480-0 - General Requirements for Piping Systems. STANDARDS MI LI TARY MI
18、L-STD- 271 - Nondestructive Testing Requirements for Metals. MIL-STU-438 - Schedule of Piping, Valves, Fittings and Associated Piping Components for Submarine Service. MIL-STD-777 - Schedule of Piping, Valves, Fittings and Associated Piping Components for Surface Ships MIL-STD-804 - Formats and Codi
19、ng of Aperture, Copy and Tabulating Cards for Engineering Data Micro-Reproduction System. MS15003 - Fittings, Lubrication (Hydraulic) Surface Check, 1/8 Pipe Threads, MS21208 - Insert, Screw Thread, Coarse and Fine, Free Running, Helical Coil, Steel, Type III. CRES. DRAN I NGS MILITARY 810-1385917 -
20、 Thermometers, Bulbs and Wells PUBLICATIONS NAVSH IPS NAVSHIPS 250-644-2 - Bearing Babbitting Procedures. NAVSHIPS 0900-003-8000 - Surface Inspection Standards for Metals. NAVSIiIPS0900-003-9000 - Radiographic Standards for Production and Repair Welds. 2.2 Other ublications.: The following documents
21、 form a part of this specification Unless otherwise indicated, the issue in effect on date to the extent s;ecified herein. of invitation for bids or request for proposal shall apply. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-L7600D 28 7
22、997706 0428696 5 hf I L - T - 1 7 6 O OD (Sil I PS ) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTI.) . A434 - Quenched and Tempered Alloy Steel Bars, Ilot-Rolled or Cold-Finished. E186 - Reference Radiographs for Iieavy-Walled, Steel Castings. E208 - Conducting Drop Weight Test to determine Nil-D
23、uctility Transition Tempera- E280 - Reference Radiographs for Heavy-Walled, Steel Castings. ture of Ferritic Steels. (Application for copies should be addressed to the American Society for Testing and AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASPiE) Materials, 1916 Race Street, Philadelphia, Pennsyl
24、vania 19103.) Boiler and Pressure Vessel Code Section VI11 - Unfired Pressure Vessels. Section IX - Welding Qualifications. Power Test Code (Application for copies should be addressed to the American Society of ?leclianical AMERICAN WELD I NG SOC I ETY ( AWS ) Engineers, 345 East 47th Street, New Yo
25、rk, N. Y. 10017.) A2.0 - Standard Welding Symbols. A2.2 - Nondestructive Testing Symbols. (Application for copies should be addressed to the American Nelding Society, 345 East 47th Street, New York, N. Y. 10017.) UNITED STATES OF AMERICA STANDARDS INSTITUTE (USAS) (Application for copies should be a
26、ddressed to the United States of America Staiir!nrJs NATIONAL BUREAU OF STANDARDS B1.2 - Class 5 Interference-Fit Thread, Institute, 10 East 40th Street, New York, N. Y. 10016.) Handbook H28 - Screw Thread Standards for Federal Services (Application for copies should be addressed to the Superintende
27、nt of Documents, POST OFFICE DEPARTMENT Postal Regulations Government Printing Office, Washington, D.C. 20402.) D. (Application C. 20260.) for copies should be addressed to the Post Office Department, Nasliington, 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
28、 from IHS-,-,-NIL-T-L7600D 28 H 9799906 O428677 7 H 1 t MI L - T - 17 6 OOD (SI II PS ) 3, REQUIREMENTS 3.1 Definitions.- Unless otherwise specified hereinafter, terias and expressions shall be interpreted in accordance with definitions contained in Websters New Inter- national Unabridged Dictionary
29、. which delivers power to propel the ship forward. unit which delivers power to the ship when backing. 3.1.1 Ahead element.- Ahead element is defined as that part of the propulsion unit 3.1.2 Astern element.- Astern element is defined as that part of the propulsion 3.1.3 Sin le-flow turbine.- Single
30、-flow turbine pertains to a configuration wherein 3.1.4 Double-flow turbine.- Double-flow turbine pertains to a configuration where- all of the stetm is confined to a single blade path as it expands through the turbine. in steam divides at a point in the steam path and flows through two blade paths
31、from that point on, 3.1.5 Impulse element or turbine.- Impulse element or turbine pertains to the basic design where the enthalpy drop across each stage occurs principally in the nozzle or nozzle diaphragm, and essentially no pressure drop occurs across the rotating blades. Predominant rotational ef
32、fort in this turbine results from the impulse effect of steam directed through nozzles against rotating blades. This design type is identified with wheels integral with rotor and nozzle diaphragms between. the wheels. basic design where the enthalpy and pressure drops in each stage are divided nearl
33、y equally between stationary and rotating blading, Predominant rotational effort in this turbine results from the reaction to steam as it leaves each row of rotating blades. This design is identified with drum-type rotor with radial seals for stationary and rotating blading. 3.1.6 Reaction element o
34、r turbine.- Reaction element or turbine pertains to the . 3.1.7 “Hand“ (blading).- The “hand“ of turbine blading shall be designated as right-hand or left-hand as follows: (a) Right-hand bladin .- Blading is right-hand when turbine rotor rotates clockwise when v!ewed in the direction of steam flow.
35、3 unit. 3 cruis (b) Left-hand bladin .- Blading is left-hand when turbine rotor rotates coun- terclockwise wh$n viewed in the direction of steam flow. 1.8 Propulsion unit.- Turbines for one propeller shaft comprise a propulsion 1.9 Endurance power.- Endurance power is that partial power at which req
36、uired ng raaius of the ship is specified. 3.1.10 Government inspector.- Government inspector or “Inspector“ as used herein refers to the Government quality assurance representative who has cognizance of the plant at which the part or component is being produced or tested. 3.2 Equipment required.- 3.
37、2.1 Turbines.- Turbines shall be furnished in the quantity and to the specifica- tions set forth herein and in the ordering data (see 6.2.2). tings and accessories shall be furnished with the turbines as necessary to meet the requirements herein, The items listed in 3.2.2.1 shall be furnished by the
38、 turbine manufacturer unless amended in 6.2.2(n). or other vendors are listed in 3.2.2.2 for information. 3.2.2 Additional equipment, fittings and accessories.- Additional equipment, fit- Items which will be furnished by shipbuilder n 3.2.2.1 Items furnished with turbines.- Items to be furnished by
39、the turbine manufacturer shall be ,as follows: (a) Bdlts between items furnished and for turbine end of turbine-condenser (b) Control valves (nozzle, by-pass, and transfer) and control mechanisms at flexible connection (see 3.20.9.3) turbine (see 3.11.7) 4 Provided by IHSNot for ResaleNo reproductio
40、n or networking permitted without license from IHS-,-,-HIL-T-17bOOD 28 = 9999906 0428698 9 c MIL-T-17600D (SHIPS) Cross-over pipe(s) including expansion joint (see 3.11.3) Drawings and microfilm (see 3.28 and 3.29) . Gland seal regulating valves (see 3.9.1) Governing and overspeed devices when overs
41、peed protection is required Grease fittings (see 3.8.11) Devices for attachine insulation and laaainrr (see 3.6) (see 3.10.7) I . Identification platei (see 3.20.19) Lifting gear (see 3.20.11) Mating flanges for lube oil inlet connections (see Moisture separator for nuclear cross-compound units Onbo
42、ard repair parts (see 3.27) Onboard tools (see 3.26) Reports (see 3.32) Rotor position indicator (see 3.7.4) Sentinel valves (see 3.11.6) Bearing sight flow fittings and thermometer wells Singling-up fittings for single shaft ships (see 3 Strainer for T-G sets (see 3.11.4) Technical data books (see
43、3.31) Manuals (see 3.30) Template or jig for condenser flange Template for coupling flange (see 3.5.4) Thermometer wells (steam) (see .3.7.1) Trip throttle valve for T-G sets (see 3.10.8.1) (see 3.20.9.2 3.11.2.2) (see 3.11.5) see 3.7.2) 10.9) Items furnished by shipbuilder or other vendors.- the sh
44、ipbuilder or other machinery vendors include, but are not restricted to, the following: Items to be furnished by Ahead handwheel and reach-rod system (including valve position indicator). Astern valve and handwheel and reach-rod system. Bearing temperature monitor for RTES. Bolting and chocks to fou
45、ndation, and bolts and gaskets required for ship- Desuperheater when required for singled-up operation. Drain valves, orifices and traps. Extraction and induction valves, Flexible connections for connecting resiliently-mounted turbines to ship Gages (local and for main gageboard). Girders for H.P. a
46、nd H.P. -1.P. turbines (if required). Gland seal and leak-off system (excluding regulating valve(s). Guarding valve. Insulation (thermal) and lagging. Lifting gear other than that required to be furnished by turbine manufac- Low-pressure L.O. alarm. Lubrication system (external to turbine). Operatin
47、g and safety plates for machinery spaces. Quick-closing inlet valve (if required) for clutched turbines. Singling-up special steam supply valve and inlet pipe to L.P. turbine. Strainer, main steam (except for turbine-generator) , Thermometers (steam and oil) for local installation on turbines and fo
48、r main builder piping connections to turbine. systems or other components. turer (see 3.20.11) . gageboard. 3.2.3 Engineering services.- For Naval Ship Systems Command (NAVSHIPS) or Naval Ship Engineering Center (NAVSEC) procurements, the turbine manufacturer shall, to the extent requested by the bu
49、ilding yard and approved by the cognizant Supervisor of Shipbuilding or Commander of Naval Shipyard, furnished the services of competent engineer(s) to provide supervisory assistance during assembly, installation, alignment and adjustment- of units, as well as attendance at dock and sea trails. man days for this purpose shall be as specified in the contract. The number of 3.3 Design concepts and basic criteria.- 3,3.1 Reliabilit .- The principle of reliability is paramount and no compromise of
