GB 17266-1998 Safety technical requirements for dissolved acetylene cylinder filling stations
Some standard content:
GB 17266-- 1998
This standard is specially formulated to regulate the safety and technical conditions of dissolved acetylene cylinder filling stations and ensure filling safety. The standards and regulations closely related to this standard are: GB50031-91 Acetylene Station Design Specifications;
2 Explosion and Fire Hazardous Environment Electrical Installation Design Specifications; GB50058-92
GB13591-92 Dissolved Acetylene Quick Filling Regulations; ZBJ7602090 Dissolved Acetylene Equipment Technical Conditions; "Dissolved Acetylene Production Safety Management Regulations (Trial)" (1989) jointly issued by the Ministry of Chemical Industry, the Ministry of Labor, and the Ministry of Public Security; "Dissolved Acetylene Cylinder Safety Supervision Regulations" (1993) issued by the Ministry of Labor. In order to highlight the key points and avoid duplication, this standard focuses on the responsibilities of the filling station and the safety and technical conditions that the high-voltage part must have, so as to control the filling quality and ensure filling safety. This standard is proposed by the Ministry of Labor of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Gas Cylinders and is responsible for its interpretation. The drafting units of this standard are Changzhou Aircraft Manufacturing Plant (responsible), Shanghai Wusong Chemical General Plant (participant). The main drafters of this standard are Wu Haoqing, Yu Xixi, Zhao Chanxing, and Li Zongjun. This standard is published for the first time.
1 Scope
National Standard of the People's Republic of China
Safety specification for filling station of dissolved acetylene cylindersGB 17266—1998
This standard specifies the responsibilities and necessary safety and technical conditions of the filling station of dissolved acetylene cylinders (hereinafter referred to as the filling station). This standard applies to filling stations that produce bottled acetylene. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB2894—88 Safety signs
GB6819—1996 Dissolved acetylene
GB8163—87 Seamless steel pipes for conveying fluidsGB13591—92 Dissolved acetylene filling regulations
GB50031—91 Acetylene station design specifications
GBJ16—87 Code for fire protection of building design
GBJ235-82 Code for construction and acceptance of industrial pipeline engineering (metal pipelines)ZBJ7602 0-90 Technical conditions for dissolved acetylene equipment Ministry of Labor Lao Guozi [1990] No. 8 Safety Technical Supervision Regulations for Pressure Vessels Ministry of Labor Lao Guozi [1993] No. 4 Safety Supervision Regulations for Dissolved Acetylene Cylinders 3 Duties of Filling Stations
3.1 Strictly implement the fixed filling unit system stipulated in Article 37 of the "Safety Supervision Regulations for Dissolved Acetylene Cylinders" (hereinafter referred to as the "Regulations"), and truthfully report the user list of dissolved acetylene cylinders (hereinafter referred to as acetylene cylinders) that are fixed for filling at this station and their annual changes. 3.2 For acetylene cylinders that are fixed for filling at this unit, files shall be established and marked one by one in accordance with the provisions of Article 37 of the "Regulations". 3.3 Acetylene cylinders that are not in the archives of this station shall not be accepted or filled. Acetylene cylinders for temporary users shall be marked, and filled and stored separately. 3.4 Ensure that the inspection, measurement and addition of solvents before filling of acetylene cylinders, filling operations, measurement of acetylene filling volume in the bottle and pressure after standing, leakage inspection, filling records, etc. are strictly implemented in accordance with the relevant provisions of GB13591 and the "Regulations". The accessories should be complete and undamaged. Acetylene cylinders that do not meet the requirements are not allowed to be filled, and acetylene cylinders with filling quality that does not meet the requirements are not allowed to leave the station. 3.5 Ensure that the quality of the filled acetylene complies with the provisions of GB6819, and issue a certificate of conformity indicating the production license mark and number. 3.6 Ensure that the transportation and storage of acetylene cylinders comply with the relevant provisions of Chapter 7 of the "Regulations". 3.7 Be responsible for protecting the color markings of acetylene cylinders and repairing damaged coatings. 3.8 Ensure that acetylene cylinders filled at this station are inspected regularly or in advance in accordance with the provisions of Articles 52 and 53 of the "Regulations". Approved by the State Bureau of Technical Supervision on March 20, 1998, and implemented on October 1, 1998
4 Basic conditions for filling stations
GB17266—1998
4.1. The construction of filling stations must strictly comply with the regulations of relevant national departments, and the station can be built only after planning, layout and approval. 4.2 After the filling station is built, it shall apply for and pass the completion acceptance and commissioning acceptance of relevant government departments and obtain a production license. 4.3 The filling station shall strictly follow the relevant regulations of the provincial labor department, apply for and be accepted, and obtain the registration certificate for filling dissolved acetylene cylinders. 4.4 The filling station must establish a complete safety management system, have sound rules and regulations, and have technical information such as standards and specifications related to dissolved acetylene and dissolved acetylene cylinders.
4.4.1 The safety management organization composed of personnel at all levels has clear division of labor and clear responsibilities. 4.4.2 The safety management procedures are clear and operational. 4.4.3 Corresponding rules and regulations should be formulated in accordance with relevant national laws and regulations: a) safety education, training and inspection system; b) fire prevention and explosion prevention system; www.bzxz.net
c) dangerous goods (flammable, explosive goods, gas cylinders) transportation and storage system; d) weekly inspection system for equipment and measuring instruments and establishment of ledgers; e) file management system.
4.4.4 Complete safety operation procedures for equipment (acetylene compressor, high-pressure dryer, filling and drainage, etc.) and positions (pre-filling inspection, filling inspection, post-filling inspection and acetylene compressor, etc.).
4.4.5 Fire-fighting equipment is selected correctly and arranged reasonably, and its effectiveness is checked regularly. 4.4.6 Accident (leakage, fire, etc.) emergency handling procedures and methods are correct. 4.4.7 Rules and regulations and safety operation procedures should be effectively implemented, and work witnesses should be true, accurate, clear, filled in completely and properly kept. 4.4.8 Safety signs should be set up in conspicuous places indoors and outdoors of the filling station in accordance with the specific provisions of GB2894. 5 Personnel conditions of filling stations
5.1 Filling stations should be equipped with full-time safety production technical persons in charge with the technical title of engineer or above (including engineer). 5.2 Filling stations should be equipped with full-time safety officers who have passed provincial professional and technical training with high school diplomas or above. 5.3 Filling stations should be equipped with production shift (group) leaders who have passed provincial professional and technical training: inspectors before and after acetylene cylinder filling and product quality testers.
5.4 Filling stations should be equipped with compressor operators and filling operators who have passed professional and technical training. 5.5 Filling stations should be equipped with engineering and technical personnel and equipment management personnel who have passed professional and technical training with secondary technical school diplomas or above. 6 Plant and equipment conditions of filling stations
6.1 The fire hazard category of the production rooms with explosion hazards (including acetylene compressor rooms, bottle filling rooms, empty bottle rooms, full bottle rooms, acetylene cylinder warehouses, etc.) of the filling station is "A" class as stipulated in GBJ16, and the plant should be a single-story building with first or second level fire resistance. 6.2 Pressure relief facilities should be installed in production rooms with explosion hazards. The pressure relief facilities should use lightweight roofs or openings on the roof as the pressure relief area. The ratio of the pressure relief area to the plant volume (m2/m> should comply with the requirements of GBJ16 and should be 0.22. 6.3 Production rooms with explosion hazards should adopt reinforced concrete columns, steel columns with fire protection layers to bear the load, or frame or rack structures, and should adopt open buildings. The doors and windows of the flap structure should open outwards and should have safe exits. The ceiling pre-shed should be as flat as possible to avoid dead corners to prevent acetylene from being retained or accumulated.
6.4 Acetylene compressors and their auxiliary equipment should be arranged in a separate room. 6.5 The empty bottle room and the full bottle room should be set up separately. The filling bottle room can communicate with the empty bottle room and the full bottle room through the doorway, and each should have an independent entrance and exit. 6.6 The net width of the bottle transportation channel in the filling bottle room, the empty bottle room, and the full bottle room should not be less than 1.5m. 6.7 Acetylene bottle loading and unloading platforms should be set up in the empty bottle room and the full bottle room. The platform should be 0.4~～1.1m above the floor. The width should not exceed 3m; and a canopy that is larger than the width of the platform should be installed, and the canopy and its support should be non-combustible. 108
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6.8 Production rooms with explosion hazards must have sunshade, ventilation, rain and snow protection, static electricity removal and lightning protection facilities that meet the requirements of GB50031, and a combustible gas concentration detection and alarm device should be installed. 6.9 The filling station must have a fire truck passage, a special fire hydrant, a fire water source, fire extinguishing equipment and disaster relief facilities for handling accidents in emergency situations.
An emergency sprinkler must be installed in the filling room for fire extinguishing, and it should be started and checked once a week. 6.10 Acetylene compressors, high-pressure dryers, and gas cylinder separators should comply with the provisions of 5.10 and 5.8 of ZBJ76020 and the "Regulations on Safety Technical Supervision of Pressure Vessels", and be inspected regularly. 6.11 Acetylene pipelines shall be made of seamless steel pipes (GB8163, No. 20 steel supplied in normalized state), the inner diameter of the pipe shall not exceed 20mm; the wall thickness shall not be less than the provisions of Table 1.
Outer diameter of pipe
Minimum wall thickness
g18~20
6.12 Valves and accessories of acetylene pipelines shall be made of steel, malleable cast iron, ductile iron or copper alloy with a copper content not exceeding 70%.
The nominal pressure of valves and accessories shall not be less than 25MPa. The connection of pipelines must ensure reliable sealing, and welding and high-pressure ferrule joints are preferred; flange or threaded connection can be used for connection with valves, accessories and equipment.
6.13 Acetylene high-pressure hoses must be resistant to corrosion by acetylene and solvents, and materials that can cause combustion and explosion shall not be selected; high-pressure hoses with an inner diameter less than or equal to 6mm must be able to withstand a bursting pressure greater than or equal to 60MPa. 6.14 Acetylene pipelines must be subjected to a 30MPa pressure test before installation, and the pipeline system after installation must undergo a 3MPa air tightness test and a 2.5MPa leakage test. The leakage rate requirements and test methods should comply with the provisions of GBI235. 6.15 The laying of acetylene pipelines should comply with the provisions of GB50031. 6.16 A main stop valve should be installed on the inlet pipe of each row of acetylene filling and filling rows, and distribution stop valves must be installed at each distribution interface of the filling and filling row, one valve for each bottle. A return pipe leading to the acetylene gas cabinet should be provided at the end of the filling and filling row, and a stop valve should be installed on the return pipe. At least one acetylene pressure gauge should be installed on each filling and filling row. 6.17 A water spray cooling device should be installed on the acetylene filling and filling row, and it should be able to spray all acetylene bottles. 6.18 Flame arresters must be installed in the following locations of the acetylene pipeline and the connected equipment: a) on the outlet pipeline of the high-pressure dryer;
b) before the main stop valve of each filling and draining;
c) after each distribution stop valve of the filling and draining;
d) on the pipeline where high-pressure acetylene is returned to low-pressure acetylene. The selection of flame arresters shall comply with the provisions of 5.15.5.1 in ZBJ76020. 6.19 Acetylene equipment and pipeline systems shall have inert gas replacement facilities with an oxygen content of less than 3%. 6.20 Acetylene equipment, pipelines, filling and draining shall have grounding devices that can remove static electricity. The grounding resistance shall not be greater than 102 and shall be tested after maintenance and at least once a year.
6.21 Acetylene dispersion or discharge shall be led to the outdoors separately, and the outlet pipe shall be higher than the roof ridge and shall not be less than 1m. 6.22 For any equipment, instrument or meter that comes into contact with acetylene, it is strictly prohibited to use copper alloys with a copper content exceeding 70%, as well as products made of silver, mercury, zinc, cadmium and their alloys.
6.23 In Zone 1 of a filling station with explosion hazard, dICT2 (B4b) grade flameproof electrical equipment or instruments suitable for acetylene must be used.
The metering, monitoring and alarm instruments in the filling station must be complete, intact, reliable and should be calibrated regularly. 6.24
The filling station should be equipped with acetylene cylinder vacuuming, weighing and solvent replenishing devices. 109
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6 Explosion-proof tools that do not produce sparks should be used in the filling station. 6.26
The filling station should be equipped with flame arresters required for different types of motor vehicles. 6.27
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