不锈钢筒的压缩机能耐硫化氢腐蚀吗? 光考虑气缸自己是不够的，转贴一下api618里2.14.1.10有相关规定。 2.14.1 .lo all materials exposed to h2s gas service as defined by nace mr0175 shall be in accordance with the requirements of that standard. components that are fabricatebdy welding shall be stress relieved, if required, so that both the welds and the heat-affected zones meet the yield strength and hardness requirements. note: it is the responsibility of the purchaser to determine the amount of h,s that may be present, considering normal operation, star&-up, shutdown, idle standby, upsets, or unusual operating conditions such as catalyst regeneration in many applications, small amounts of h2s are sufficient to require nace materials. when trace quantitieosf h2s are present,o r the amounto f h2s is uncertain, then the purchaser should automatically note on the data sheet that nace materialas re required. components to which nace requirements apply shall include, as a minimum, the following: all pressure-containing cylinder parts (sucahs the cylinder, heads, clearance pockets, valve covers); all components within the cylinder (such as piston, piston rod, valves, unloaders, fasteners); all components within the outboard distance piece (such as packing box, packing, fasteners); and all external fasteners (except frame fasteners). see appendix p, external fasteners to which nace materiarl equirements apply shall include the following: all bolting on the exterior of the cylinder that retains gas-pressure-containing parts (such as valve covers, unloaders, heads, clearance pockets, piping connections); bolting that holds the cylinders to the distance piece; bolting thajot ins distance piece components; bolting that holds the distance piece to the crosshead guide; bolting that holds the crosshead gutiod eth e frame; and bolting on distance piece covers. on multiple cylinder machines, nace requirements shall apply to all cylinders. exceptions to nace requirements for hardness are acceptable for valve seats (see 2.7.11) and piston-rod surfaces (see 2.8.4.1). other exceptions are valve plates and springs where greater hardness has proven necessary. agreement shall be reached by the manufacturer and the purchaser on alternative alloys or special heat treatment as required.查看更多
大家帮我看看我翻译的对不??关于跳车的..？ fv-71001a/b and xv-71001 to close 15 seconds before fv-71025 closes, and close 60 seconds before hv-71005 closes and 71-v101 trips. 翻译：在关阀fv-71025 前十五秒关闭阀和阀xv-71001 ，关闭hv-71005 和71-v101 跳车前关闭fv-71001a/b 和 xv-71001 。 改：fv-71001a/b 和xv-71001关闭15秒后fv-71025关闭；（fv-71001a/b 和xv-71001）关闭60秒后hv-71005 关闭并且71-v101 联锁起跳。 感觉没有把握和有疑问的地方最好标出来，高手估计没有耐心和时间看完全部内容（我是新手）。查看更多
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