1、MIL-B-16747C (SHIPS) 22 April 1963 SUPERSEDING MIL-B-l6747B(SHIPS) 18 June 1957 MI LIT ARY SPECIFIC ATION BOILER, STEAM, HIGH PRESSURE, WATER TUBE , TYPE, AUXILIARY-NAVY SHIPBOARD I 1. SCOPE 1.1 This specification covers packaged type oil-fired natural-circulation water-tube type boilers of 2- drum,
2、 single uptake design with burner, all necessary appurtenances, controls, and auxiliary equipment mounted as an integral unit on a steel base SO as to make a complete, self-contained steam generating unit. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitati
3、on for bids or request for proposal, form a part of the specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-P-116 - Preservation, Methods Of MIL-R-196 - Repair Parts for Internal Combustion Engines, Packaging of MIL-S-901 - Shock Tests, H. I. (High-Impact); Shipboard Machinery,
4、 Equipment and Systems, MIL-C-915 - Cable, Cord and Wire, Electrical (Shipboard Use) MIL-D-963 - Drawings, Electrical, Hull and Mechanical Equipment for Naval Shipboard Use MIL-R-2033 - Relays for Naval Shipboard Electrical Service MIL-E-2036 - Enclosures for Electric and Electronic Equipment, Naval
5、 Shipboard MIL-C-2174 - Controllers, Direct-Current, Naval Shipboard MIL-C-2194 - Cables, Power, Electrical, Reduced Diameter Type, Naval Shipboard. MIL-C-2212 - Controllers, Alternating-Current, Naval Shipboard MIL-B-2678 - Brushes, Wire, Boiler-Tube, (Expanding Type for Use With Cleaning-Outfits,
6、MIL-C-5015 - Connectors, Electric, “AN“ Type MIL-J-5624 - Jet Fuel, JP-4 and JP-5 MIL-P-14276 - Paint, Heat-Resisting; Silicone, Aluminum MIL-P-15024 - Plates, Identification-Information and Marking for Identification of Electrical, MIL-M-15071 - Manuals, Equipment and Systems MIL-P-15137 - Provisio
7、ning Technical Documentation for Repair Parts for Electrical and MIL-P-15384 - Plastic Mix, Refractory (Water-Wall, Boiler, Chrome Ore Plastic). MIL-B-16008 - Brick, Insulating, High Temperature, Fire Clay MIL-1-16165 - Interference Shielding, Engine, Electrical Systems MIL-T-16286 - Tubes, Steel, S
8、eamless, Marine Boiler Application MIL-P-16298 - Preservation, Packaging, Packing, and Marking of Electric Machines Having MIL-W-16878 - Wire, Electrical, Insulated, High Temperature MIL-F-16884 - Fuel Oil, Diesel, Marine MIL-1-16910 - Interference Measurement, Radio, Methods and Limits; 14 Kilocycl
9、es to 1000 MIL-M-17059 - Motors, Alternating-Current, Fractional HP (Shipboard Use) MIL-M-17060 - Motors, Alternating-Current, Integral Horsepower (Shipboard Use) MIL-T-17188 - Tubes, Carbon Steel, Resistance Welded, Marine Boiler MIL-P-17286 - Propulsion and Auxiliary Steam Turbines and Gears (Incl
10、udes Repair Parts, MIL-T-17370 - Tube and Flue Cleaner, Boiler, Internal, Air-Motor-Driven Requirements for Boiler Tube, Electric and Air-Motor-Driven) Electronic and Mechanical Equipment Mechanical Equipment (Naval Shipboard Use). Rotating Parts and Associated Repair Parts Megacycles Tools, Accesso
11、ries and Instruments); Packaging of Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-B-Lb747C 44 m 777740b 0452302 1 m, i 1 MIL-B- 16747C (SHIPS) MILITARY (Cont?d) MIL-M-17413 - Motors, Direct-Current, Integral HP, Naval Shipboard MIL-E- 17555 -
12、Electronic and Electrical Equipment and Associated Repair Parts, Preparation for Delivery of MIL-M-17556 - Motor, Direct-Current, Fractional HP (Shipboard Use) MIL-P-17945 - Pumps, Centrifugal, Peripheral Type, Miscellaneous Naval Shipboard Service MIL-F-19004 - Fans, Centrifugal, Fixed and Portable
13、, Ventilation, Naval Shipboard STANDARDS MILITARY MIL-STD-22 - Welded Joint Designs MIL-STD-130 - Identification Marking for U. S. Military Property MIL-STD-167 - Mechanical Vibrations of Shipboard Equipment MIL-STD-278 - Welding and Allied Processes for Machinery for Ships of the United States Navy
14、 DRAWINGS BUREAU OF SHIPS 810-1385850 - Piping Gages for all Services (Copies of specifications, standards, drawings and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. ) 2.
15、2 Other publications. - The following documents form a part of this specification to the extent spec- ified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. OFFICIAL CLASSIFICATION COMMITTEE Uniform Freight Classification Rul
16、es (Application for copies should be addressed to the Official Classification Committee, 1 Park Avenue at 33rd Street, New York 16, N. Y. ) AMERICAN SOCIETY OF MECHANICAL ENGINEERS Boiler Construction Code (Application for copies should be addressed to the American Society for Mechanical Engineers,
17、29 West (Technical society and technical association specifications and standards are generally available for 39th St., New York, N. Y. 1 reference from libraries. They are also distributed among technical groups and using Federal agencies. ) 3. REQUIREMENTS. - 3.1 Preproduction unit. - Prior to the
18、 beginning of production one boiler, complete with auxiliaries, 3.2 Materials. - Except as otherwise specified herein, all materials shall conform to those specified shall be submitted for the preproduction inspection specified in 4.2 (see 6.3). in the ASME Boiler Construction Code except as specifi
19、ed in 3.2.1 through 3.2.10. 3.2.1 Cast iron shall not be used in any part of the boiler or any part of the auxiliaries and accessories or controls. Nodular (ductile) iron castings are permissible subject to written approval by the bureau or agency concerned. Construction Code except that the safety
20、valves shall be cast or forged steel and all other valves shall be bronze or cast or forged steel, 3.2.2 All valves, including boiler safety valves, shall conform to the requirements of the ASME Boiler 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
21、,-r MIL-B-Lb747C Lt4 = 9779906 0452303 3 W _ _ _ -_ MIL-B- 16747C(SHIPS) 3.2.3 Material for boiler tubes shall be seamless steel in accordance with MIL-T-16286 or electric resistance welded steel in accordance with MIL-T-17188 or the commercial equivalents (see 3.2.9). 3.2.4 Furnace brickwork shall
22、conform to MIL-B-16008 or the commercial equivalent (see 3.2.9) or shall be a product which is listed on or which has been approved for listing on Qualified Products List QPL- 15606. Only Navy standard shapes will be acceptable, 3.2.5 Castable hydraulic setting refractory used to form the burner con
23、e opening shall be a product which is listed on or which has been approved for listing on Qualified Products List QPL-717. 3.2.6 Air setting mortar used for laying brickwork shall be a product which is listed on or which has been approved for listing on Qualified Products List QPL-15842. 3.2.7 Plast
24、ic water wall refractory, when used, shall be in accordance with MIL-P-15384 or the com- mercial equivalent (see 3.2.9). 3.2.8 Thermal block insulation shall be a class 3 or 4 product listed on or which has been approved for listing on Qualified Products List QPL-2819. 3.2.9 When commercial equivale
25、nts are supplied, they shall be identified by commercial trade name and physical and chemical properties shall be given. 3.2.10 The boiler shall be equipped with necessary brickwork, insulation, and lagging consisting of a metal jacket over the steam and water drum insulation. 3.3 Design. - 3.3.1 Ex
26、cept as otherwise specified herein, the boiler shall be designed in accordance with the ASME 3.3.2 The boiler shall be oil-fired natural-circulation water-tube type of 2-drum single uptake design, 3.3.3 The boiler shall be designed to permit normal operation with a momentary roll up to 45 degrees, B
27、oiler Construction Code. The hand of the boiler shall be as defined and specified (see 6.1). or a permanent list of 15 degrees to either side with a permanent inclination of 5 degrees fore and aft with boilers installed with longitudinal axis of the steam drum in fore and aft direction. 3.3. 4 The b
28、oiler shall have the following design and operating characteristics: (a) Pressure design. 150 pounds per square inch (p. s. i. ) (b) Pressure, working . 125 p.s.i. (c) Pressure, safety valve popping. 145 through 150 p.s. i. (d) Capacity, saturated steam, pounds per hour, actual evaporation at 125 p.
29、 s. i. working pres- sure with feed water temperature at 100“ F. : (1) Normal rated capacity - As specified (see 6. i). (2) Maximum rated capacity - As specified (see 6.1). (e) Exhaust gas temperature . 650F. maximum at rated capacity. (f) Efficiency. 75 percent minimum at maximum capacity, (g) Fuel
30、 burned . JP-5 jet fuel in accord- ance with MIL-J-5624 or Diesel fuel oil, in accordance with MIL- F-16884 as specified (see 3.6.2 and 6. i). 3.3.5 The boiler shall be designed for automatic feed water regulation (see 3.7.4.1) and for either man- ual or automatic burner operation as specified (see
31、6.1). If automatic burner operationis Specified, provision 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_- MIL-B-Lb747C 44 737770b t3452304 5 W MIL-B- 16747C(SHIPS) shall be made for by-passing the automatic burner controls in order to operate t
32、he burner man- ually whenever necessary. Provisions shall be made in the feed water system for by-passing the automatic regulator and controlling the boiler feed water manually when automatic feeding is not used. 3.3.5.1 The manual burner operation shall consist of electric spark ignition, flame fai
33、lure control, and manual regulation of fuel oil and air supplies. Ignition shall be by electric arc (electrodes) manually controlled by push button. The circuit shall be wired such that fuel admission follows 5 seconds after the push button is depressed and the ignition circuit is energized. If comb
34、ustion does not take place, the oil solenoid valve shall close within 5 seconds plus or minus one second. Electrodes shall be locked securely in place to prevent movement. 3.3.5.2 The automatic burner operation shall feature automatic spark ignition, flame failure control, and automatic modulation o
35、f firing rates within a range corresponding to boiler steaming loads from the maximum rated capacity to 10 percent of the maximum rated capacity, and automatic “On and Off“ cycling at steaming loads below 10 percent of the maximum rated capacity (see 3.3.4). ignition shall be by elec- tric arc (elec
36、trodes) automatically controlled by programmed sequence (see 3.7.2.1.1). Electrodes shall be locked securely in place to prevent movement. 3.3.5.2.1 Working pressure for boilers equipped for automatic burner operation shall be approximately the mean between the automatic burner cut-in and cut-off pr
37、essures. 3.3.6 The boiler shall be equipped with all auxiliaries, accessories, and controls to make a self- contained and complete steam generating unit when connected with electric power supply and fuel oil and feed water supply and return lines to be provided by the installing activity. No economi
38、zers, air heaters or superheaters shall be fitted to the boiler. 3.3.6.1 The boiler and all auxiliaries shall be adequately supported on a base. Means shall be pro- vided for connecting the base to the ships deck or foundation. I 3.3.6.1.1 Shock resistance, - The base, all support members for boiler
39、 and for auxiliaries and hold down bolts shall be designed to withstand the shock loadings shown on figure 1. Shock stresses shall be con- sidered for each direction separately and shall not be combined. Bolts stressed in shear shall be installed in holes of the following sizes: f Nominal bolt diame
40、ter Diameter of hole Up to and including 3/4 inch Larger than 3/4 inch Nominal bolt diameter plus 1/32 inch Nominal bolt diameter plus 1/16 inch 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-E-Lb747C 44 979j70b 0452305 7 W -_- -_ _- - MIL-B
41、- 16747C(SHIPS) -1 , y HIGH IMPACT SHOCK DATA FOR HOLD DOWN BOLTS, FEET, CTRUCTiJtqAL MEMBERS AND SUB-BASES OF SHIPBOARD LTEMS OF MAcHINERND EOUIPMENT I30 NOTES: 1. THE HOL oowu BOLTS FEET STRUCTURAL MEMBERS AND SU8-BISE OF THE MACH1hERY OR EQUIPMENT UNIT SHALL Bcf DESIGNED TO WITHSTAND A LOAD (EQUA
42、L To WEICHT OF THE UNIT MULTIPLIED BY ITS CORRESPONDING SHOCK DESIGEI NUWER FOR EACH OF THE THREE PRINCIPAL DIRECTIONS) APPLIED AT THE CENTER-OF-CfiAVlTY Cf THE UNI EACH OF THE THREE PRINCIPAL DIRECTIONS OF LOADING SHALL BE CONSIDERED Il0 100 “. _“. 1. WEIGHT - POUNDS Figure 1 - Shock 3.3.6.1.2 Auxi
43、liaries and other equipments rigidly supported shall not be attached to 2-structures which can deflect relative to each other, under shock loading. 3.3.6.2 The auxiliaries, accessories and controls shall include the following: (a) Burner (see 3.3.5 and 3.7.1). (b) Ignition system (see 3.3.5.1 and 3.
44、7.2.1). (c) Flame failure safety control (combustion safeguard) (see 3.7.2). (d) Fuel oil system (see 3.7.3). (e) Blower and air regulating mechanism (see 3.7.2.3 and 3.7.8). (f) Feed water system (see 3.7.4). (g) Automatic feed water regulator (see 3.7.4.1 and 3.3.5). (h) Automatic low water and hi
45、gh temperature limit cut-off control (see 3.7.2.4). (i) Motors and controllers as required by the driven auxiliaries (see 3.7.7). (i ) Soot blowers as required (see 3.7.5). (k) Smoke indicator (see 3.7.6). (I) Safety valves, as required (see 3.2.2). (m) Steam stop valve. (n) Bottom blow off valves.
46、(o) Surface blow off valve. (p) Salinometer valve. (9) Air vent valve. (r) 2- Water gages, with valves (10 inches visibility each, reflex flat glass for size No. 7 glasses), (s) Steam pressure gage, 0-300 No, 8-1/2 inches dial. (t) Combustion chamber observation window and manual ignition port of sw
47、ing type (see 3.7.1.2). each gage separately mounted. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-Lb747C Li4 m 977970b 045230b 7 MIL-B-16747C (SHIPS) Outside diameter (inches) 3/4 and 1 1-1/8 and 1-1/4 1-3/8 and 1-1/2 1-3/4 and 2 2-1/4, 2
48、-1/2, and 2-3/4 4 3.3.6.3 Automatic controls, except for motor starters, shall be suitable for operation with 220 volt a. c. current. A suitable transformer shall be included on the boiler control panel if the available power supply is other than 220 volts a. c. (see 6.1). A rotary inverter shall be
49、 provided when power source is d. c. 3.3.6.4 Drives for auxiliary equipment. - Wherever practicable, the drive and driven shall be direct coupled with flexible coupling. Belt drives may be employed subject to obtaining specific approval from the bureau or agency concerned. Belt drives when employed shall conform to the following: (a) Matched belts, as a set, shall be furnished for multiple belt drives, (b) Belt speeds in excess of 5,500 feet per m
