College】 【weak cold storage room of ammonia machine design】..

<br> ammonia machine cold storage are presented using ammonia compressor room and the room design selection criteria are as follows: <? xml: namespace prefix = o ns = "urn: schemas-microsoft-com: office: office" /> <o: .p> </ o: p> <B style="mso-bidi-font-weight: normal"> cold <B style="mso-bidi-font-weight: normal"> ammonia machine selection should be consistent with ammonia compressor .the following requirements: <o:p> </ o: p> 1, ammonia evaporation temperature of the compressor should be based on the calculated values of mechanical load selected; generally not equipment machines; <o:p> </ o: p .> 2, ammonia machines use cold ammonia compressor piston, when the condensing pressure (P1) and the evaporation pressure (P2) ratio greater than 8 should be used two-stage compression; when the condensing pressure and evaporating pressure ratio less than or .equal to 8 should be a single-stage compression; <o:p> </ o: p> 3, a series of compressors ammonia compressor room should not exceed two. .If only two machines, you should use the same series. .<o:p> </ o: p> <? xml: namespace prefix = v ns = "urn: schemas-microsoft-com: vml" /> <v: shapetype id = _x0000_t75 stroked = "f" filled = "f ."path =" m @ 4 @ 5l @ 4 @ 11 @ 9 @ 11 @ 9 @ 5xe "o: preferrelative =" t "o: spt =" 75 "coordsize =" 21600,21600 "> <v: stroke joinstyle = ."miter"> </ v: stroke> <v:formulas> <v:f eqn="if lineDrawn pixelLineWidth 0"> </ v: f> <v:f eqn="sum0 1 0"> </ .v: f> <v:f eqn="sum 0 01"> </ v: f> <v:f eqn="prod2 1 2"> </ v: f> <v: f eqn = ."prod @ 3 21600 pixelWidth"> </ v: f> <v:f eqn="prod3 21600 pixelHeight"> </ v: f> <v:f eqn="sum0 0 1"> </ .v: f> <v:f eqn="prod6 1 2"> </ v: f> <v:f eqn="prod7 21600 pixelWidth"> </ v: f> <v: f eqn = ."sum @ 8 21600 0"> </ v: f> <v:f eqn="prod7 21600 pixelHeight"> </ v: f> <v:f eqn="sum10 21600 0"> </ .v: f> </ v: formulas> <v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"> </ v: path> <o: lock aspectratio = "t" v .: ext = "edit"> </ o: lock> </ v: shapetype> <o:p> </ o: p> <B style="mso-bidi-font-weight: normal"> ammonia machine cold storage room .Design Code: <o:p> </ o: p> Article 1 ammonia machine requires cold storage room of the fire should be consistent with the existing "building design for fire protection" in the B building fire hazard regulations. .<o:p> </ o: p> No. 2 machine cold storage room of ammonia clear height should be based on height and heating equipment, ventilation requirements to determine, generally not more than six meters. .<o:p> </ o: p> Ammonia section 3 of the automatic control of machine cold storage room or operating room with the machine duty room should be spaced, and should set a fixed observation window. .<o:p> </ o: p> cold section 4 of ammonia machine room roof insulation or insulation measures should be taken. .<o:p> </ o: p> Ammonia Article 5 of the machine between the machine cold storage room dado, floors and equipment, the base should be easy to clean the surface layer. .<o:p> </ o: p> machine cold storage section 6 of the variable distribution of ammonia and ammonia compressor room adjoining room, the common wall should be not less than 4 hours fire resistance of non-solid wall of burning bodies, and .should be plastering. .The wall is only allowed to cross the pipeline and distribution room on the channel, the holes around the burning of materials should be strictly non-blocking. .<o:p> </ o: p> 7 ammonia machines cold storage room and power distribution room door should open outwards and shall not use the side sliding door. .Distribution room suite through the corridors or interlinked with ammonia compressor room, corridor or suite door burning of materials should be difficult for the body, and should have automatic shut-off device. .Distribution room shared with ammonia compressor room should not open the window on the wall; If you must open the window, the application of the fixed windows sealed combustion difficult..