1、LINCH-POUND I MIL-F-18602B(SH) 12 February 1991 SUPERSEDING 1 August 1963 (See 6.10) MIL-F-l8602A(SHIPS) MILITARY SPECIFICATION FANS, VANEAXIAL, FORCED DRAFT, STEAM TURBINE DRIVEN, NAVAL SHIPBOARD SERVICE This specification is approved for use by the Naval Sea Systems Command, Department of the Navy
2、, and is available for use by all Departments and Agencies of the Department of Defense. * 1. SCOPE 1.1 Scope This specification covers steam turbine driven forced draft vaneaxial fans, alternately referred to as forced draft blowers, complete with drivers and controls, for supplying combustion air
3、to the main steam boilers on naval ships. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifi- cations, standards, and handbooks form a part of this document to the extent specified herein. those listed in the issue of the Departmen
4、t of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Unless otherwise specified, the issues of these documents are Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving t
5、his document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 4140 DISTRI
6、BUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-F-LbOZB 43 W 9999906 0473207 3 W MIL-F-l8602B(SH) SPECIFICATIONS FEDERAL QQ - S - 7 00 QQ- S - 763 QQ- S - 76 6 TT- P- 2
7、8 TT-P- 645 PPP-F- 320 MI LI TARY MIL- S - 901 MIL-E-2036 MIL-C-2212 MIL-T-8504 MIL-P-15024 MIL-E-15090 DOD-P-15328 MIL-C-15730 MIL-T-16049 MIL-M-17060 MIL-T-17286 MIL-L-17331 MIL-T-17523 MIL-G-18997 MIL-P-19131 MIL-L-19140 MIL-T-19646 MIL-S-22698 MIL-V-24578 - Steel Sheet and Strip, Medium and High
8、 Carbon, - Steel Bars, Wire, Shapes, and Forgings, Corrosion - Steel, Stainless and Heat Resisting, Alloys, Plate, - Paint, Aluminum, Heat Resisting (1200F). - Primer, Paint, Zinc Chromate, Alkyd Type. - Fiberboard; Corrugated and Solid Sheet Stock Resisting. Sheet and Strip. (Container Grade), and
9、Cut Shapes. - Shock Tests, H. I. (High-Impact) Shipboard Machinery, Equipment and Systems, Requirements for. - Enclosures for Electric and Electronic Equipment. - Controllers, Electric Motor A.C. or D.C. and - Tubing, Steel, Corrosion-Resistant (304), Aerospace Associated Switching Devices. Vehicle
10、Hydraulic Systems, Annealed, Seamless and Welded. Equipment. - Plates, Tags and Bands for Identification of MIL-P-15024/5 - Plates, Identification. - Enamel, Equipment, Light-Gray (Formula No. 111). - Primer (Wash), Pretreatment (Formula No, 117 for Metals) (Metric). - Coolers, Fluid, Naval Shipboar
11、d: Lubricating Oil, Hydraulic Oil, and Fresh Water, - Tachometers: Electrical; Self-Generating; Mechani- cal, Fixed Mounting and Hand Held; and Vibrating Reed. Horsepower, Shipboard Use. Auxiliary Steam; Packaging of. Service. Mechanical Drive. - Motors, 60-Hertz, Alternating Current, Integral - Tur
12、bines and Gears Shipboard Propulsion and - Lubricating Oil, Steam Turbine and Gear, Moderate - Turbine, Steam, Auxiliary (and Reduction Gear) - Gauge, Pressure, Dial Indicating. - Pumps Rotary, Power Driven, Miscellaneous. - Lumber and Plywood, Fire-Retardant Treated. - Thermometers, Remote Reading,
13、 Self-Indicating Dial, Gas Actuated. - Steel Plate, Shapes and Bars, Weldable Ordinary Strength and Higher Strength: Structural, - Valves, Globe, Pressure Instrument, Stem Test Connection, Union End. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
14、MIL-F-Lb02B 43 m 9999906 O473208 5 = MILITARY (Continued) DOD-F-24669/7 - Forgings and Forging Stock, Steel Bars and Billets, Corrosion Resisting; Naval Steam Turbine Parts Use. (Metric) Connection and Gasket Seal. MS33656 - Fitting End, Standard Dimensions for Flared Tube STANDARDS FEDERAL FED-STD-
15、H28 - Screw-Thread Standards for Federal Services. MILITARY MIL-STD-109 MIL-STD-167/1 - Mechanical Vibrations of Shipboard Equipment (Type - Quality Assurance Terms and Definitions. I - Environmental and Type II - Internally Excited). MIL-STD-271 - Requirements for Nondestructive Testing Methods. MI
16、L-STD-278 MIL-STD-721 - Definitions of Terms for Reliablty and Main- ML-STD-740-1 - Airborne Sound Measurements and Acceptance Criteria MIL-STD-740-2 - Structureborne Vibratory Acceleration Measurements MIL-STD-769 - Thermal Insulation Requirements for Machinery-and MIL-STD-777 - Schedule of Piping,
17、 Valves, Fittings, and - Welding and Casting Standard. tainability. of Shipboard Equipment. and Acceptance Criteria of Shipboard Equipment. Piping . Associated Piping Components for Naval Surface Ships. Systems, Equipment and Facilities. MIL-STD-1472 - Human Engineering Design Criteria or Military (
18、Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawings. and publications. The following oth
19、er Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS NAVAL SEA SYSTEMS COMMAND (NAVSEA) 810-1385850 - Piping, Instrument, Pressure, for All Services. 810-1
20、385797 - Valves, Steel, Flanged Globe, Combined Exhaust Relief 810-1385798 - Valves, Steel, Flanged Angle, Combined Exhaust Relief 810-4433336 - Shutters, Automatic, 30 In. Width x 23-1/4 In. Height Valve. Valve. For Forced Draft Blowers. 3 Provided by IHSNot for ResaleNo reproduction or networking
21、permitted without license from IHS-,-,-(Application for copies should be addressed to: Commander, Portsmouth Naval Shipyard, Naval Engineering Drawing Support Activity, Code 202.2, Portsmouth, NH 03804-5000.) 2.2 Non-Government Dubiications. The following document(s) form a part of this document to
22、the extent specified herein. issues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). Unless o
23、therwise specified, the AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) PTC 10 - Compressors and Exhausters. (Application for copies should be addressed to the American Society of Mechanical Engineers, United Engineering Center, 345 East 47th Street, New York, NY 10017.) AMERICAN SOCIETY FOR TESTING
24、 AND MATERIALS (ASTM) A 167 - Standard Specification for Stainless and Heat Resisting Chromium Nickel Steel Plate, Sheet, and Strip. (DoD adopted) A 276 - Standard Specification for Stainless and Heat-Resisting Steel Bars and Shapes. A 473 - Standard Specification for Stainless and Heat-Resisting St
25、eel Forgings. A 516 - Standard Specification-for Pressure Vessel Plates, Carbon Steel, for Moderate - and Lower - Temperature Service. (DoD adopted) A 569 - Standard Specification for Steel, Carbon (0.15 Maximum, Percent), Hot-Rolled Sheet and Strip Commercial Quality. (DoD adopted) Hot-Rolled, Stru
26、ctural Quality. (DoD adopted) A 570 - Standard Specification for Steel, Sheet and Strip, Carbon, (Application for copies should be addressed to the American Society for Testing Materials, 1916 Race Street, Philadelphia, PA 19103). ITT BARTON INSTRUMENTS CO. Dwg. No. D4224E005 - ITT Barton Instrument
27、 Drawing, (Application for copies should be addressed to the ITT Barton Instrument Co., 900 S. Turnbull Canyon Road, City of Industry, GA 91749.) (Non-Government standards and other publications are normally available from These documents also the organizations that prepare or distribute the documen
28、ts. may be available in or through libraries or other informational services.) 2.3 Order of precedence, In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable l
29、aws and regulations unless a specific exemption has been obtained. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-9999906 0473210 3 = _ - MIL-F-l8602B(SH) 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to
30、first article inspection (see 6.4) in accordance with 4.4. 3.2 Performance. 3.2.1 Rated capacitv. The rated capacity and rated discharge pressure shall be as specified (see 6.2) and shall be the capacity and pressure delivered by the blower when operating at the specified steam inlet and exhaust con
31、ditions and at the rating conditions indicated in table I. maximum volume flow rate of air required to be delivered by the blower when operating at the maximum required discharge pressure (rated discharge pressure). The rated capacity shall be expressed in cubic feet per minute (ft3/min) at the air
32、inlet conditions of table I. discharge pressure and shall be expressed in inches of water, gauge (w.g.). blower speed at rated capacity and rated discharge pressure shall be the rated speed. The rated capacity shall be the The rated discharge pressure shall be the static The TABLE I. Blower rating c
33、onditions. I Condition I Rating Intake air temperature Ambient air temperature Intake air relative humidity Intake air pressure Cooling water inlet temperature (seawater) Ambient air relative humidity 68F 140F 50% 14.7 lb/in2 absolute 95F 100% 3.2.2 Rated steam conditions. The normal operating steam
34、 inlet pressure and inlet temperature (and percent moisture where applicable) at the inlet to the steam turbine governing valve and the normal operating exhaust pressure at the turbine exhaust flange shall be the rated steam conditions under which the turbine, under control of the governing system,
35、shall deliver the required horsepower for blower performance at rated capacity. shall be as specified (see 6.2). The rated steam conditions 3.2.2.1 Emerjzencv steam conditions. The blower shall operate at rated capacity and pressure under the following emergency steam conditions; however, one hand-c
36、ontrolled nozzle valve shall be provided to achieve rated blower performance with minimum inlet and maximum exhaust conditions as indicated in items (b) and (c) (a) (b) (c) Steam pressure 10 percent greater than rated, other conditions at Steam pressure 20 percent lower than rated, other conditions
37、at Exhaust pressure 25 pounds per square inch gauge (lb/in2), other rated values, rated values. conditions at rated values. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-1b02B 41 W 9999706 0473233 5 .:. MIL-F-l8602B(SH) 3.2.2.2 Maximum and
38、minimum steam conditions. Maximum and minimum steam inlet pressures and temperatures (and percent moisture where applicable) at the inlet to the governing valve and the maximum and minimum exhaust pressures shall be as specified (see 6.2). Blower performance and design requirements under the maximum
39、 and minimum steam inlet and exhaust conditions or any special conditions such as cruising or full power, shall be as specified (see 6.2). 3.2.3 Blower-turbine efficiencv. When operating at rated capacity and the rated steam conditions, the combined blower-turbine efficiency shall not be less than t
40、hat indicated in table II. determined in accordance with the following: The combined blower-turbine efficiency shall be (a) Combined blower-turbine efficiency, in percent = LB Adiabatic air horsepower HP x theoretical steam rate HP-HR x 100 Actual steam flow lb/h (b) (c) The theoretical steam rate s
41、hall be the theoretical pounds of steam The adiabatic air horsepower shall be the power required to isentropically compress the air delivered by the blower. required per horsepower-hour under the steam conditions specified in the contract or order, TABLE II. Combined blower-turbine efficiency. I I C
42、ombined blower - _turbine efficiency (percent) I Rated static discharge pressure Rated capacity (inches w.g.) 20, 000 ft3/min 120 110 100 80 60 I Rated capacity Rated capacity 30,000 ft3/min 40,000 f t3/min 36.0 33.0 30.5 28.0 26.5 25.0 37.5 34.5 32.0 29.0 27.5 26.0 3.2.4 Stall margin. When operatin
43、g at rated capacity and with the rated speed held constant, throttling of the blowers discharge air flow, thereby reducing capacity and raising discharge pressure, shall not cause the blower to go into surge or stall until the flow has been reduced to 82.5 percent or less. 3.2.5 Parallel oDeration.
44、Each blower with its speed regulating Governor shall permit operation throughout the speed range from minimum speed (15 percent of rated) to rated speed in parallel with one or more additional identical blowers - all discharging through separate ducts to a common plenum. Each blower shall be brought
45、 from a minimum speed into stable parallel operation with one or more other identical blowers operating at approximately rated capacity and at a speed developing 45 percent of rated discharge pressure, without the speed of the oncoming blower exceeding that of the operating blower and with all blowe
46、rs Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-Lb02B 41 W 9999906 047LZL2 7 W A-A _-. I MIL-F- 18602B( SH) O continuing to operate stably in parallel with the speed difference between blowers not exceeding 300 revolutions per minute (r/min)
47、 . equal control signal inputs to each blower shall produce equal speed increments in each blower. Once in parallel operation, 3.2.5.1 ODeration in unstable region. Under the methods of operation on naval ships, blowers shall operate in parallel at speeds less than 45 percent of rated speed with one
48、 or more, but not all, blowers operating in an unstable (stall) performance region continuously. Additionally, blowers shall operate in parallel at minimum speed of 15 percent of rated speed for indeterminate periods of time. for satisfactory operation under these conditions. Each blower shall incor
49、porate performance and durability characteristics 3.2.6 Performance and design limitations. (a) With the blower operating at rated capacity, the steam leakage from the turbine glands shall not exceed 370 pounds per hour (lb/hr) and the amount of air entering the shaft glands and exhausted by the gland exhaust system shall not exceed 80 lb/hr under the following operating conditions: (1) (2) (3) 20 ib/in2 gauge turbine exhaust pre
