在用工业管道定期检验规程英文版Word格式.docx

1、underState General Bureau for Quality Supervision, Inspection and QuarantineDocument of State General Bureau for Quality Supervision, Inspection and QuarantineGuo Zhe Jian Guo 2003 No. 108Notice on Printing and Issuing the Regulation for Periodic Inspection of In-service industrial piping （for trail

2、）All quality supervision bureaus of provinces, autonomous regions and municipalities directly under Central Government and all related units,To intensify the management of safety supervision of pressure vessels and to standardize the periodic inspection of in-service industrial piping, the General B

3、ureau has formulated the Regulation for Periodic Inspection of In-service industrial piping （for trail）, which shall be implemented from June 1, 2003. Now it is printed and issued to you and you are kindly requested to implement it earnestly. Any problem in implementing shall be reported to the Safe

4、ty Supervision Bureau for Boilers and Pressure Vessels under the State General Bureau for Quality Supervision, Inspection and Quarantine.Annex: Regulation for Periodic Inspection of In-service industrial piping （for trail） State General Bureau for Quality Supervision, Inspection and Quarantine of th

5、e Peoples Republic of China （seal） April 17, 2003Regulation for Periodic Inspection of In-service industrial pipingChapter 1 GeneralArticle 1 To intensify safety supervision of pressure vessels and to standardize inspection of in-service industrial piping so as to secure safe operation of industrial

6、 piping and the safety of peoples life and property, this regulation is worked out in accordance with relevant stipulations in the Regulation for Safety Management and Supervision of Pressure Vessels.Article 2 This regulation is basic requirements for the inspection of, the evaluation of the class o

7、f safety status （For classification, see Appendix I） and handling of defects of the on-line piping. By-laws for the implementation worked out by relevant unit shall meet the requirements in this regulation.Article 3 This regulation applies to in-service industrial piping and attached facilities with

8、in the applicable scope of the Regulation for Safety Management and Supervision of Pressure Vessels, however excluding following piping:（1） Piping with nominal diameter 25mm;（2） Non-metal piping;（3） Piping with max. working pressure 42MPa or 0.1MPa.Article 4 The classification of in-service industri

9、al piping within applicable scope of this regulation is as follows:（1） Industrial piping meeting any of following conditions is GC1Class:a. Piping delivering medium with extreme toxicity specified in the national standards in force the Classification for Hazard of Occupational Contact Poisons GB5044

10、,b. Piping delivering flammable gases of fire hazard of Categories A and B or flammable liquid of Category A specified in the national standards in force the Specification for Fireproof Design of Petrochemical Enterprises GB50160 and the Specifications for Building Fireproofing GBJ16 and the design

11、pressure is 4.0MPa;c. Piping delivering flammable fluid medium or toxic fluid medium with design pressure 4.0MPa and design temperature 400;d. Piping delivering fluid medium with design pressure 10.0MPa.（2） Industrial piping meeting any of following conditions is GC2 Class:a. Piping delivering flamm

12、able gases of fire hazard of Categories A and B or flammable liquid of Category A specified in the national standards in force the Specifications for Fireproof Design of Petrochemical Enterprises GB50160 and the Specifications for Building Fireproofing GBJ16 and the design pressure is 4.0MPa;b. Pipi

13、ng delivering flammable fluid medium or toxic fluid medium with design pressure 4.0MPa and design temperature 400;c. Piping delivering flammable fluid medium or non-toxic fluid medium with design pressure 10.0MPa and design temperature 400;d. Piping delivering fluid medium with design pressure 10.0M

14、Pa and design temperature 400;（3） Industrial piping of GC2 Class meeting any of following conditions is GC3 Class:a. Piping delivering flammable fluid medium or toxic fluid medium with design pressure 1.0MPa and design temperature b. Piping delivering non-flammable fluid medium or non-toxic fluid me

15、dium with design pressure 4.0MPa and design temperature Among them, the GC2 and GC3 industrial piping crossing railway main lines, important bridges, residences and important industrial facilities and delivering medium of fire hazard of Categories A and B and medium hazard of toxicity, the inspectio

16、n to those crossing part shall be made in accordance with what specified for piping of GC1 Class.Article 5 Periodic inspection of in-service industrial piping includes on-line inspection and overall inspection.Article 6 The organization and inspectors engaging in the inspection of in-service industr

17、ial piping shall perform following duties:（1） Inspection shall be performed with the scope of approved qualification;（2） They shall accept supervision, inspection and profession instruction of the quality technical supervision department;（3） They shall secure the inspection quality and be responsibl

18、e for the inspection results.Chapter 2 On-line InspectionSection 1 General RulesArticle 7 The on-line inspection is made to the in-service industrial piping at running condition, which shall be made at least once a year.Article 8 The on-line inspection shall be made by the application unit. The appl

19、ication unit may also entrust the on-line inspection to the organization that has qualification for pressure piping inspection. The application unit shall work out rules for on-line inspection. Inspectors engaging in on-line inspection shall be professionally trained and shall be reported to the qua

20、lity technical supervision department at provincial level or authorized regional （municipal） level for records.The application unit shall work out inspection plan and inspection solutions in accordance with specific conditions and shall arrange the inspection work.Article 9 The on-line inspection, i

21、n general, is made with macro inspection and inspection of safety protection units as main items. In case of necessity, thickness measuring and measuring of value of electric resistance shall be made. In general, following parts of piping are key inspection parts:（1） Outlets of compressors and pumps

22、;（2） Compensators, Tees, bends （bend pipes）, reducers, branch connections and dead angles of medium flow;（3） Piping components and welding joints near the damaged supports and hangers;（4） Locations where there were problems affecting safe running of piping;（5） Piping sectors at key position of produ

23、ction process as well as piping sectors connecting with important units or equipment;（6） Piping sectors of bad working conditions and with changing loads;Article 10 The on-line inspection items specified in this chapter are general requirements for on-line inspection. Inspectors may determine actual

24、 inspection items and inspection contents and make inspection in accordance with actual conditions.Section 2 Inspection Items and RequirementsArticle 11 For general procedures of on-line inspection, see Figure 1.Article 12 Before on-line inspection, the application unit shall make ready of technical

25、 information of the key plan and process drawings, single line drawings, on-line inspection and overall inspection reports in history, operation parameters, of the relevant piping to be inspected. The inspectors, on the basis of reading these information, shall inspect operation records, start-up an

26、d shut down records, records of measures to monitor hidden danger of piping, records of construction of piping reforming, reports of maintenance and repairing as well as records of handling of piping troubles and shall work out inspection solutions according to actual conditions.Preparation before i

27、nspectionInspection of recordsSite macro inspection and other inspectionsMeasuring wall thicknessMeasuring electric resistanceInspection of safety protection unitsInspection of marks of pipingInspection of measuring points of creep expansionInspection of cathode protection unitsInspection of valves,

28、 flanges and expansion jointsInspection of supports and hangersInspection of positions and deformationsInspection of vibrationInspection of heat isolation layer and anti corrosion layerInspection of leakageIssuing inspection reportsTreatment after inspectionFigure 1 General Procedures of On-line Ins

29、pectionArticle 13 Macro inspection includes following items and contents（1） Inspection of leakageIt is mainly to check pipes and other components for any leakage;（2） Inspection of heat isolation layer and anti corrosion layerIt is to check the heat isolation layer for any damage, peeling off or cold

30、 leakage and check the anti corrosion layer to be sure it is in good order;（3） Inspection of vibrationIt is mainly to check piping for any abnormal vibration;（4） Inspection of positions and deformationsa. Check the positions of piping to be sure whether they meet safety technical specifications and requirements in the national standards in force;b. Check to be sure whether there is bumping or friction between pipes as well as between pipe and equipment;c. Check piping to be sure whether there is any deflection, settlement or abnormal deformation of piping