《无油润滑压缩机设计中的pv值及其应用研究》由会员分享，可在线阅读，更多相关《无油润滑压缩机设计中的pv值及其应用研究（4页珍藏版）》请在金锄头文库上搜索。
1、271河 北 工 业 科 技 Vol.27,No.12010M1Hebei Journal of Industrial Science and Technology Jan.2010cI|:1008-1534(2010)01-0008-03!9pv#(河北科技大学机械电子工程学院,河北石家庄050018)K1:对无油润滑压缩机设计中的 pv 值进行了研究。对活塞环的磨损特性分析表明, pv 值越大,活塞环磨损越大、寿命越低。通过pv值的计算推得由pv 值和 pv值来确定活塞环数的计算式。经分析认为一般资料所给活塞环材料的 pv值过低,所得环数过多,给压缩机在结构尺寸、成本、加工和装配等方面带来
2、问题。推荐了常用无油润滑材料的 pv值。实际应用表明按推荐值设计的压缩机结构紧凑,活塞环运行寿命达4 000 h以上。1oM:压缩机;无油润滑;pv值;活塞环ms|:TH457DSM:AStudy on pv value and its application in design ofoilless lubrication compressorsZHU Yu-feng(Collegeof Mechanical and Electronic Engineering, Hebei University of Science and Technology ,Shijiazhuang Hebei 05
3、0018,China)Abstract:The pv valuein design of oilless lubrication compressor was studied.Theanalysis result about wear characteristic ofpiston ping showed that the larger pv value was, the quicker the ring worn and the shorterits life was.The formulaof pv valuewas derived.The formula used to determin
4、e piston ring number by pv valueand pv was derived.The normal calculated ringnumber was too big because the pv value of materials given by general datawas too small,which caused a lot of problems to thecompressor such as structure size,cost, processing and installation.The pv of normal oilless lubri
5、cation materials were rec-ommended.The practical applications show that the compressor structure designed with recommended pv compacts and thepiston ring life is above 4000 h.Key words:compressor;oilless lubrication;pv value;piston ringl:2009-09-273I :8S/9(07212180);8S/5+7(06547003D);S/vMTe:(1966-),
6、3,0,q,V,1VYV8Z。=A8,、)!。a、D0、J6 000 h4L-20/8 400 0.80 0.24APTFE 0.56 2 24L-20/8b/3 。 pv?9B)、=)sY25,ysL=jK,B、=)(?|2,“=)pvV pvS,pv”。L=NH pv0.56 MPa m/sP,z3wiS=,3yp|4G,H3|VL。6 pvPp,VYVpvFKLC。7L=、X,?VMSl,5pvB?vM,7 pv1,?L0, pvv4Pp。 pv(MPam/s)V3U。V3:ADC pvKl,a。API pvv,0,2N,s1v, pv。:4M20-75/320、BL=pv1.5 2MP
7、am/s,L3.3-17/320pvr3.1 MPam/s。APTFE,P,ypvXAPTFE,V pv,v pv/H,y,Pp+lH。FH-1B,x8/|xHV,A8Y2xb#=,PTFEx8?z#, pvr2 MPam/s,apvvT。Fq?T4 000 h4 。(/13:)10S/27。NH3_b_8s0.026,l0.04I/K。Tb、e,HE5P%,5VEIB。NV,L=3,P8V,Pb,h!g,e3V,3。3_Vbem1_b、eUim。图1连续脱氢空气流量的测量、控制示意图Fig.1Air flow measurement and controlment in continuous
8、hydrogen removal of sodium formiate7b5YV5L09d9,$Fb_。%8J)H$F_,bJ)_?3,J)$FQ_Q,3)。)_bB7_,s,_bVs,)V/9。TH,1HY4b29,H,43)V9,?3sFvb,P_cI/K,EBf?3。41)-S=3)Wu_i,/A。2)_E、43、T、4)lq,、7?w。3)YV9V,1!9,、e、T,VbT8,C5。ID:1 Z.Jg-#3 J ./6,2003,21(3):20-22.2 .E3 J .?,1994(1):2-7.3 yB.J)3)_L) J .,1997,25(4):50-52.4 .Vy6_3)#! P .S:1927805A,2007-03-14.5 .J)_3)#! P .S:1903821A,2007-01-31.6 .J)_3
