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1、3仪表回路检查方案Loop Check Scheme1. 编制说明Edit description本方案适用于上海工业气体公司合成气装置2期扩建项目仪表工程，包括回路检查的各项规定及相应要求。同时列出回路检查的方法及标准，在回路检查过程主要负责现场模拟信号及接点信号的输入工作，DCS操作站上操作主要由厂家及现场操作人员负责；同时要求有其他相关专业的协调与配合。This Scheme is apply to Hyco II Instrument Project of Shanghai Industrial Gas Company, including loop check specificati
2、ons and relevant requirements. The loop check method and standard have been listed. During the loop check, we are only responsible the local analog signal and point signal input. DCS operating station is mainly responsible by vendor and site operators; at the same time, it is requested coordinate an
3、d cooperate from other specialties.2. 编制依据Edit basisGB50093 2002自动化仪表工程施工及验收规范GB50093 2002Automation Instrument Engineering Construction and Acceptance SpecificationsSH3521-2007 石油化工仪表施工规程SH3521-2007Petrochemical Instrument Construction RegulationsSH3503-2007 石油化工建设工程项目交工技术文件规定SH3503-2007Petrochemic
4、al Construction Project Hand Over Technical and Document RulesGB50168-2006 电缆线路施工及验收规范GB50168-2006Cable Run Construction and Acceptance SpecificationSY4031-93 石油建设工程质量检验评定标准自动化仪表安装工程SY4031-93Petrochemical Engineering Quality Inspection Assessment Standard Automation Instrument Installation projectGB
5、50131-2007自动化仪表工程施工质量验收规范GB50131-2007Automation Instrument Project Construction Quality Acceptance SpecificationSH3543-2007 石油化工建设工程项目施工过程技术文件规定(通用电气仪表)SH3543-2007 Petrochemical Construction Project Construction Process Technical Document Specification (General Electric/Instrument)69817-01-0850001 鲁
6、奇规范 仪表通用规范69817-01-0850001Lurgi SpecificationGeneral Instrument Specification69817-01-0850071 鲁奇规范 回路检查工程规定69817-01-0850071 Lurgi SpecificationLoop Check Project Specification3回路检查的一般规定 General provision on Loop Check3.1 回路检查应在系统投入运行前进行，试验前系统应具备下列条件： Loop check should be carried out before the syste
7、m put into operation, the following conditions should be available.3.1.1回路检查文件夹已准备完整，符合规范要求； Loop check document folder have been prepared and fulfilled specification requirements;3.1.2 回路中的仪表设备、装置和仪表线路、仪表管道应安装完毕； The instruments, devices and instrument line, instrument pipeline in the loop should b
8、e completely installed;3.1.3 仪表配线和配管经检查确认正确完整，配件附件齐全；符合试验要求； Instrument wiring and piping should be checked and confirmed completely, fittings and accessory is complete in accordance with test requirements;3.1.4 回路中的电源、气源已能正常供给并符合仪表运行的要求； Power and gas resource in the loop should be supplied normall
9、y and in accordance with operating requirement;3.1.5气源管道经吹扫、气密性试验合格，已通入压力稳定的仪表空气； Air source pipeline has been purged and air test qualified, instrument air with stable pressure has been put into the system;3.1.6电气回路已进行校线及绝缘检查，接线正确、端子牢固、接触良好、标识正确； Electric loop has been tested, insulation checked ,
10、wiring correct, terminal fastness, contact in good condition, proper label;3.2 参加系统试验的施工人员应熟悉图纸及仪表系统工作原理，并具有熟练的调试技术。 Constructors involve with the system test should familiar with the drawing and instrument system operating principle and with skill debugging technical.3.3 回路检查应根据现场情况和回路的复杂程度，按回路位号和信
11、号类型合理安排，回路试验应做好相应的试验记录； Loop check should be reasonably arranged according to site condition and loop complexity level, and loop position number and signal type. Loop check should be recorded accordingly;3.4 仪表试验用的标准仪器仪表应具备有效的计量检定合格证，其基本误差的绝对值不超过被校准仪表基本误差绝对值的1/3; The standard instrument using in ins
12、trument test should equipped with measure calibration certification, the absolute intrinsic error data should not over than 1/3 to the instrument to be tested; 3.5 仪表校试验的条件、项目、方法应符合产品技术文件的规定和设计文件要求； The instrument test condition、item、method should be accordance with product technical specification a
13、nd design requirements;4. 回路检查的方法及要求 Loop Test Method and Requirement4.1 回路检查文件夹的准备： Loop check folder prepare:4.1.1 仪表数据表、回路接线图、Hook-up图； Instrument data sheet、loop wiring drawing、Kook-up drawing;4.1.2 Vendor提供的仪表标定数据表及部分阀门的HOOK-UO图； Instrument rating data table provided by Vendor and part of valve
14、 Hook-up drawing;4.1.3 仪表设备安装检查记录： Instrument installation check report;4.1.4 模拟量输入回路的试验报； Analog quantity input loop test report;4.1.5 模拟量输出回路试验报告； Analog quantity output test report;4.1.6 仪表导压管/气源管检查（泄漏及气密性检测）报告； Instrument guide piping/air source test report(leakage test and air tightness test );4.1.7 开关量仪表输入/输出检查，主要检查现场自控阀的动作是否到位、操作站上的反馈信号是否正确； Switch value input/output check, to check local automation valve act in place or not、feed back signal in operation station is correct or not;
