1、MILITARY SPECIFICATION HEAh:KS, SPACE: HULTIFUEL, WITH BLOtiER 60,000 BTU/HR MIL-B-1151lG 17 July 1980 SUPEaSED!NG MIL-B-115llF 22 August 1974 This specification is approved for use by all Departments and Agencis of L1e Department of Defense. 1. SCOPE 1.1 Scope_ This specification covers liquid-mult
2、ifuel-burning space heaters having 60,000 Btu/hr capacity. 12 Classification, The heaters shall be of the following types, as specified (see 6.2) Type I - 12(-volt ac, 50/60 Hertz, sin=Jle phase. ype II - 208-vo1t ac, 400 Hertz, three phase. 1.2.1 Part number. The military specification part numbers
3、 for the heaters shall be as follows: Part No. Ml1511-l for type I heaters, 120 volt, 50/60 Hertz; single phase. Part No. MilSll-2 for type II heaters, 20B volt, 400 Bertz, three phase. 2 APPL ICABLE Da:tn-.EN 2.1 Issues of documents. The following documents of the isme in effect on date of invitati
4、on for bids or request for proposal form a part of this specification to the extent specified herein: FSC 4520 IBeneficial comments (recommendations, additions, deletions) and any pErtinent data which may be of use in improving this document should be addressed to! US /lxrey Mobility Equipment Resea
5、rch and Development COftdDand, Al“l1J: DR.IlME-DS, Port Belvoir! VA 22060 by using e self-addressed Standardization Document flmIrOVement Proposal (DO Form 1426) appearing at the end of this document or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
6、rom IHS-,-,-HI IrB=1151lG SPg:IFICATIONS FEDERAL CC-+i-1807 GG-P-455 OO-S-781 VV-F-800 VV-G-1690 PPP-B-566 PPP-B-601 PPP-B-636 PPP-F-320 PPP-P-40 PPP-T-45 MI L-P-116 MIL-V-173 MIL-P-514 MIL-T-704 MIL-G-3056 MIL-w-5086 MlL-B-5423 MIL-F-559l MlL-C-5809 MIL-R-6106 MIL-B-7883 MIL-R-llOSO - Motor, Altern
7、ating-Current Fractional and Integral Horsepower. - Plate, Photographic (Photosensitive Aluminum) - Strapping, Steel, and Seals. - Fuel Oil, Diesel. - Gasoline, Automotive, Leaded or Un-leaded. - Boxes, Folding, Paperboard. -Boxes Wood: Cleated-Plywood. - Boxes, Shipping, Fiberboard. - Fiberboard, C
8、orrugated and Solid, Sheet Stock (Container Grade), and Cut Shapes. - PacKaging and Packing of Hand Tools. - Tape, Gummed, Paper, Reinforced and Plain, for Sealing and Securing. - Preservation-Packaging, Methods of. - Varnish, Moisture-and-Fungus-Resistant (for Treatment of Communications, Elec tron
9、ic, and Associated Equipment) Plates, Identification, Instruction and Marking, Blank. - Treatment and Painting of Materiel. - Gasoline, Automotive, Combat. Wire, Electric, Hookup and Intercon necting Polyvinyl Chloride-Insulated, Copper or Copper Alloy Conductor. - Bootr Dust and water Seal (For log
10、gle and Push-Button Switches and Rotary Actuated Parts) , General Specification for. - Fasteners; Panel. - Circuit Breakers, Trip-Free, Aircraft, General Specification for. - Relays, Electric, General Specification for. - Brazing of Steels, Copper, Copper Alloys, Nickle Alloys, Aluminum and Aluminum
11、 Alloys. - Rectifiers, Metallicr Selenium. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-) MIL-tf-16878 MIL-G-23827 FEDERAL FED-STD-IOl FED-STD-595 FED-STD- H28 MILITARY HI L-STD-IO 5 MIL-STO-129 loU L-STD-13 0 JL-STD-4 61 MlL-STO-78l MIL-STO-BID
12、 MIL-STo-1472 MIL-STo-i474 uco“, nn nvv MS3l06 MS51085 MS51086 MS5l321 HI L-H-l15llG - Plate, Tags and Bars for rtr J;hldT“WftlPn_ - -“3 -r- -. - Wire, Electrical! Insulated, High Temperature. - Grease, Aircraft and Instrument, Gear and Actuator Screw. - preservation, Packaging, and Packing - Colors
13、. - ScrelrIhread Standards for Federal Services. - Sampling Procedures and Tables for Inspection by Attributes. - Marking for Shipment and Storage. - Identification Marking for Us Military Property. - Electromagnetic Interference Charac teristics Requirements for Equipment. - Reliability Tests, Expo
14、nential Ois tr ibution. - Environmental Test Methods. Commercial Packaging of Supplies and F.ou i DmP nt._ -;l- Human Engineering Design Criteria for Military Systems, Equipment and Facilities. Noise Limits for Army Materiel. - Connector, Receptacle, Electrici Wall Mounting! Solder Contacts, AN Type
15、. - Connector, Plug, Electric, Straight, Bolder Contacts, AN Type. - Filter, Fluid, Pressure, Automotive 0 , I n ,nu 1:0. 1 _ , ,“ ruc.L .LV UC 11C6ICo n vUJ1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-11511G ) AMERICAN SOCIETY OF HEATING,
16、 REFRIGERATING AND AIR CONDITIONING ENGINEERS ASHRAE Handbook and Product Directory - 1977 Fundamentals the American Society of Heating, Refrigerating, and Air Conditioning Engineers, 345 East 47th Street, New York, NY 10017.) 3 REQU IREMENTS , “-_ _: .: _ “L._ l _ oL _ L._“ L _ lr_. _ J_ .:._ . _ .
17、, .6.-. _ .,“ “l _ oj C-lLt.vu. -.LlIt: ut:ClLeLb t:iUC1.LL ut: b I:UUWU .LU L.LyU.LC: .L LU,“VUYU .; cuu 5peified herein. The heaters shall be of the liquid-myltifuel-burning; as urontaminated, forced hot-air type. The heater shall have a measured output heating capacity of not less than 60,000 Bri
18、tish thermal units per hour (Btu/hr) a t sea level (0 to 500 feet) a nd an ambient temper ature of 700 F plus or minus 10 F and with the airflow specified in 3.12. The heater shall perform as specified herein at an altitude of 5,000 feet. The heater shall include a fuel system; an ignition system; a
19、 combustion system; a circulation-air system; an electrical system, all necessary controls and wiring and a sheet-metal enclosure. The weight of the heater with all its components installed (not including the remote fuel pump) shall be not more than 150 pounds. The heater shall operate as specified
20、herein when rotated in 90-degree increments about an _ . .: _ ,_, . _ t _ , _ .:.:. _ .: _ z .:. _ _ T_4- _ 1 _ “, _ ,II . “. ClA.LC toC.L. C .: LV U: .LV:t U.LIU:Uo.l.VU V.1. .I. -I: CI. .LU -.L.I,.OUClU:II;:CI“.LI;: “u.u brackets shall be provided for mounting Le heater in any of the 90-degree inc
21、rements. Unless otherwise specified (see 6.2) , heaters shall be delivered for mounting in the air-discharge down position. No component, except the exhaust nipple, control box, mounting bracket, fuel connections, fasteners, and carrying handles, shall extend beyond the dimensional limits of the hea
22、ter L._ L _ _ .:I 9“ L _ L _ L_,“, _ .L._ L. _ .al_ _, _ .! _ _ _ _ case. .Uit: LytJe:;.L C1nU.l.J. Ilecn:.er:b 6UC.LL Upe.c:lLt: L.LUm Lue LU.L.l.UW.LU PVWCL cv,“,“,;c, rocnol“+iupllP 1?() unlt-r_ r:;n/,;n Rpr+,. cinnlo nhcp. nn ?OR vn1t- PIC“ 400 . - . - - .1 - . _- -, -, -.-“ -, -.-:7- r- - - - -
23、Hertz, three phase. On type I heaters, the capacity specified herein shall be when operating on 60-Hertz power; a 15 percent loss shall be allowed when operating on 50-Hertz power. 3.2 First-article (preproduction model). The contractor shall furnish four heaters for examination and testing within e
24、 time frame specified (see 62); to prove prior to starting production that his production methods and choice of design detail will produce heaters that comply with the requirements of this specification. Examination and tests shall be as specified in Section 4, and, unless otherwise specified herein
25、, all examinations and tests shall be conducted - _ . 1. _ _ _ L.! _ “- .L _ ,1,“ _ _ , L _ .a.-. , _ 1 _ _ oy ne conI ac“Cor: SUDJect:. “Co SUI: ve J.Clnce C! no appI: UVCl.L. LJy lU UVVL UlllJ1L DCC 6.3). When specified (see 6.2), the Goverent will conduct any or all of the preproduction examinati
26、ons and tests as specified (see 6.2) 3.3 Initial production. When specified (see 6.2), the contractor shall furnish to the Government one or more heaters (see 6.2) for inspection as specified in 4.4. 3.4 Maintainability. The heater shall permit accessibility to all parts for servicing, maintenance,
27、and repair. Replacement and adjustment of parts shall 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-1151lG be accommplished with minimum drainage of fuel and with minimum interference fram, injury to, or removal of other parts or wiring. Ea
28、se-of-maintenance provisions shall incorporate, to the maximum extant pr-acticable, features insuring operating clearances and facilitating applicable maintenance and servicing operations at low temperatures. Covers or plates that must be removed for adjustment or repair shall be equipped with capti
29、ve, quick-disconnect fasteners. Service adjustments required shall be the minimum consistent with required performance. Accessible adjustments shall be quickly returnable to their original settings. Design of the heater shall eliminate where possible the assembly of wrong combinations of parts and s
30、hall eliminate or minimize the holding of heavy or awkward parts while being brought into final position and while being fastened. Minimum allowable time between scheduled organizational maintenance services shall be 125 hours. The mean-time-to-repair shall be 2 hours at the organizational level, 8
31、hours, direct support and 24 hours at the general support level. The maintenance ratio of total scheduled and unSCheduled maintenance manhours to total operating hours shall not exceed 0.05. 3.5 Material. Material shall be as specified herein. To the maximum extent possible recycled and recovered ma
32、terials should be used in lieu of virgin raw mater ials. Mater iala not specified shall be selected by the contractor and shall be subject to all provisions of this specification. Materials shall be free from defects or imperfections which might affect the performance, main tainability, or appearanc
33、e of individual components or, the finished heater assembly. Materials subject to atmospheric corrosion or rust shall not be treated with a temporary treatment such as grease or oil 1n order to meet environmental condition requirements. None of the above shall be interperted to mean that the use of
34、used or rebuilt products will be allowed. 3.6 Environmental conditions. 3.6.1 Operating temperatures. In addition to starting and operating under the conditions specified in 3.1, the heater shall start and operate without failure or malfunction under sea level conditione at ambient temperatures betw
35、een minus 500 and plus 800 F. 3.6.2 Storage temperature. The heater shall not be damaged nor its operation impaired by storage at an ambient temperature of plus 1550 F for periods up to 4 hours daily, no solar radiation; and at minus 650 F for periods up to 24 hours, no solar radiation. 3.6.3 Tilted
36、 operation. The heater shall start and operate without failure or malfunction when positioned at any angle from horizontal to 10 degrees from horizontal in any plane. 3.6.4 Shock and vibration. The heater shall withstand and absorb shock and vibration as specified herein without structural damage, v
37、isual misali9nment of components, malfunction of components, leaks, abnormal vibration, or any other irregular operation. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-l1511G 3.6.4.1 Shock. The heater shall withstand three shocks applied al
38、ong each of the three mutually perpendicular directions that are respectively parallel to the edge of the heater (a total of 15 shocks). Each shock shall be not less than 15 9s (9 s: accelecation caused bj graviy) and shall hav a duration of not less than 11 milliseconds. The shock wave forlll ahall
39、 be as required by figure 516.2-2 of MIL-STD-8l0. 3.6.4.2 Vibration. The heater shall withstand vibration as specified in MlL-STD-8l0, method 514.2, category F, procedure VIII, table 5l4.2-VI, curve V. The test time shall be 6C minutes total per plane. 3.6.5 Salt fog and humidity. When subjected to
40、the tests cified herein, the heater shall show no evidence of peeling of paint, malfunctioning, rough operation, or electrical shorts and shall show no evidence of deterioration, corrosion, or change in tolerance limits of any internal or external parts which could prevent the unit from meeting oper
41、ational and maintainability requirements. 3.6.5.1 Salt fog. The heater shall withstand salt-fog exposure as specified in MIL-STD-810, method 509.1, procedure I. 3.6.5.2 The heater shall wistana hwuidity exposure as specified in MIL-STD-810, method 507.1, procedure I. 3.6.6 Sound level. When subjecte
42、d to the test specified in 4.6.2.5, the sound level of the heaters shall conform to MIL-STD-1474, category E for steady-state noise. 3.6.7 Endurance. The heater shall be capable of operating for 6,000 cycles, with each cycle consisting of 20 minutes at full heat (on-time) and 10 minutes at no heat (
43、off-time). The 3000 hours accumulated from thes cycles shall include 2000 on-time hours and 1000 off-time hours. Duing this eAdurance operation (see 4.6.2.8), the heat output shall not vary more than 10 percent from that obtained in the capacity test (see 4.6.2.1). Except for refueling, the heater s
44、hall operate without maintenance for not less than 250 hours. At the end of 250 hoursf cleaning ot the burner head: cleaning of the fuel filter(s) and cleaning of the ignition plug(s) shall be permitted. The ignition plu9(s) and fuel filter(s) may be replaced every 1000 hours. 3.7 Safety. All expose
45、d parts, except the heater exhaust stack, that are subject to high operating temperaturEs or are energized electrically shall be insulated, enclosed, guarded, or grounded. All moving parts that are of such nature or so located as to be a hazard to operating or maintenance personnel shall be enclosed
46、 or guarded. Protective devices shall not iir the operatin9 functions. 3.8 Efficiency. The heater shall have an indicated efficiency of not less than 70 percent and shall have a measured efficiency of not less than 65 percent. The indicated efficiency shall be based on the flue-gas analysis, and the
47、 measured efficiency shall be based on the measured out-put. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L-H-115l1G 3.9 Fuel system. The heater shall operate with gasoline conforming to L-G-3056 or VV-G-1690 and any other gasoline up to 100
48、octane; and with diesel fuel conforming to VV-F-BOO, class DF-l, DF-2 and DF-A having a cloud point not loer than minus 55 F. The fuel system shall be designee for operation when connected to one external fuel line. Any excess fuel pump capacity shall be handled by a pressure regUlating or bypass arrangement inside the heater case. A fuei overfiow line shall be used with a float control
