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GB 14544-2008: Production of vinyl chloride from calcium carbide and acetylene -- Safety technology code
Status: Valid GB 14544: Evolution and historical versions
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Production of vinyl chloride from calcium carbide and acetylene -- Safety technology code
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GB 14544-2008
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| GB 14544-1993 | English | 399 |
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Regulation of technical safety for vinyl chloride
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PDF similar to GB 14544-2008
Standard similar to GB 14544-2008 JJG 1094 JJF 1441 Basic data | Standard ID | GB 14544-2008 (GB14544-2008) | | Description (Translated English) | Production of vinyl chloride from calcium carbide and acetylene -- Safety technology code | | Sector / Industry | National Standard | | Classification of Chinese Standard | A65 | | Classification of International Standard | 13.300 | | Word Count Estimation | 12,156 | | Date of Issue | 2008-12-23 | | Date of Implementation | 2009-12-01 | | Older Standard (superseded by this standard) | GB 14544-1993 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 21 of 2008 (No. 134 overall) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard specifies the production of vinyl chloride polymers and basic provisions, production safety, piping and equipment, safety inspection and maintenance, on-site emergency response, security management. This standard applies to new construction, renovation and expansion of the use of calcium carbide acetylene production of vinyl chloride and vinyl chloride polymer units. And PVC production departments concerned should also refer to the use. | GB 14544-2008: Production of vinyl chloride from calcium carbide and acetylene -- Safety technology code
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Production of vinyl chloride from calcium carbide and acetylene.Safety technology code
ICS 13.300
A65
National Standards of People's Republic of China
Replacing GB 14544-1993
Calcium carbide acetylene production
Vinyl safety technology
Posted 2008-12-23
2009-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard 4.1.1,4.1.3,4.1.4,4.1.5,4.1.7,4.1.8,4.2.1,4.2.2, 4.3.1,4.3.2,4.4.1 ~ 4.4.4,4.5,
4.7.1 4.7.2,4.8.1 ~ ~ ~ 4.8.2,5.1.1,5.1.2,5.2.1 5.2.4,5. 2.6,5.2.7,5.3.2 ~ 5.3.6,5.4.1,5.4.3,5.4.
5.4.7,5.5 4 ~ ~ ~ 5.12,5.13.2,6.1,6.3.2,6.5.1 6.5.2,6.5.4, 6.5.5,6.5.7,6.6.1,6.6.3,7.2.1 ~
7.2.2,7.3.1.1 ~ 7.3.1.2,7.3.2 mandatory, the rest are recommended.
This standard replaces GB 14544-1993 "vinyl safety technology."
The main difference compared with the standard GB 14544-1993 are as follows.
--- According to the prior art to modify the standard name;
--- Expanding the scope of the standard (see Chapter 1);
--- Increasing the normative references (see Chapter 2);
--- Redefined the term hot work (see 3.1) according to the prior art;
--- Adds new, reform, expansion of vinyl chloride production unit associated security clearance requirements (see 4.1.1);
--- Modified vinyl chloride production unit associated management of production safety agencies to set up and staffing requirements (see 4.1.4);
--- The equipment inspection incorporated in subsequent chapters (1993 version 4.1.5, this version 5.8);
--- Modify the use of safety signs, setting requirements (1993 version 4.1.6, this version 4.1.5);
--- Modify the provisions of the pressure vessel aspects of (the 1993 version 4.1.7, this version 4.1.6);
--- Information about the requirements of vinyl chloride Emergency Plan (this version 4.1.8);
--- According to the prior art to modify the facilities of vinyl chloride and polyvinyl chloride fire apparatus requirements, and increased the alarm device to
Request (see this edition 4.2);
--- According to the prior art to modify the system and the electrical safety requirements of vinyl chloride polymerization system (see 4.3);
--- According to the prior art to modify the lightning, anti-static grounding requirements (see 4.4);
--- Canceled on liquids, gases, vinyl chloride flow provisions (1993 Version 4.4.4);
--- According to the prior art to modify the design of ventilation PVC plant (see 4.5);
--- According to the prior art to modify the job requires workers Personal protective equipment (the 1993 edition 4.7.2,8.1.2,9.2 present
Version 4.7.2,7.3.1.2,8.2);
--- According to the prior art to modify the workplace chloride concentration requirements (see 4.8.1);
--- Increased use of PVC paste resin production safety requirements (see Chapter 4 ~ Chapter 8);
--- According to the prior art to modify the new, reform, expansion of vinyl chloride related manufacturing enterprises area layout requirements (see 5.1.1);
--- According to the prior art to modify the structure of the plant requirements and increases the proof requirements (see 5.1.2);
--- According to the prior art to modify the management of materials in the control indicators (see 5.3.1);
--- According to the prior art to modify the static grounding resistance of the vinyl chloride pipe system (see 5.4.2);
--- According to the prior art modified synthetic mixer polymerizer fire, explosion-proof requirements (see 5.4.4);
--- According to the prior art to modify the automatic control system of gas supply pneumatic instrumentation requirements (see 5.4.6);
--- According to the prior art to modify the safety requirements of the controlled device (see 5.4.7);
--- The autoclave was sticky and the removal of antifouling and as a (1993 edition 5.9,5.10, edition 5.9);
--- Combined emergency measures emergency treatment is (the 1993 version 5.12, this version 5.11,5.12);
--- According to the prior art modified vinyl chloride distillation tail exhaust gas emission standards (see 5.13.1);
--- Increased piping requirements (edition 6.2);
--- According to the prior art pipe laying revised requirements (1993 version 6.2, this version 6.3);
--- Increasing the pipeline pressure test, and modify the pipeline leak test (1993 version 6.3, this version 6.4);
--- According to the prior art modified vinyl chloride gas tank fire facility requirements (1993 version 6.4.1, this version 6.5.1);
--- Increased liquid vinyl chloride pass into the gas tank of restrictions (the 1993 version 6.4.4, this version 6.5.4);
--- The Chapters 7 and 8 combined into one chapter "Safety inspection and maintenance" (1993 edition Chapter 7, Chapter 8, Chapter 7 edition);
--- According to the prior art modified vinyl chloride concentration allowable value kettle kettle job Qing (1993 version 8.1.1, this version 7.3.1.1);
--- Increasing the number of vinyl chloride spill Accident (edition 8.5);
--- Altered the safety management system (1993 version 10.3, this version 9.3);
--- According to the prior art relates to amend the provisions of the 1211 fire extinguishing agent (see Appendix A).
Appendix A of this standard is a normative appendix, Appendix B is an informative annex.
This standard was proposed by the State Administration of Work Safety.
This standard by the National Standardization Technical Committee Production Safety Chemical Safety Technical Committee (SAC/TC288/SC3) centralized.
This standard is drafted by. Anhui Academy of Safety Science.
The main drafters of this standard. Wu Yukun, Fangcheng, party Hongbin Zheng Xin.
This standard was first published in 1993, this revision is the first revision.
Calcium carbide acetylene production
Vinyl safety technology
1 Scope
This standard specifies the basic requirements and vinyl chloride polymer production, production safety, piping and equipment, security inspection maintenance, on-site emergency department
Management, security management.
Calcium carbide acetylene production of vinyl chloride and vinyl chloride polymer units This standard applies to new construction, renovation and expansion. And polyvinyl chloride
Ene production-related sectors, should also refer to use.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB 151-1999 shell and tube heat exchangers
GB 2894 Safety Signs and use guidelines
GB 3836 Electrical apparatus for explosive gas atmospheres
GB/T 4830 Industrial automation instrument air pressure range and quality
GB/T 5761 suspension general purpose PVC resin
Basic identification colors GB 7231 industrial piping, identifying symbols and safety identification
GB 11658 PVC resin plant health protection zone standard
GB/T 12801 General requirements for the production process safety and health
GB 15592 PVC paste resin
GB/T 20801 pressure piping code - Industrial piping
GB 50016 architectural design code for fire protection
GB 50057 Lightning in design
GB 50058 Explosion and fire hazard electrical installation design specifications
GB 50160-1992 Code for fire protection design of petrochemical enterprises
GB 50235 industrial metal pipeline engineering construction and acceptance
GB 50236 field equipment, industrial pipe welding engineering construction and acceptance
GB 50257 electrical equipment installation engineering explosion and fire hazard electrical equipment installation and acceptance
AQ3009 explosion hazardous area electrical safety regulations
AQ/T 9002 production units of production safety accident emergency response plan guidelines
HG2367 vinyl chloride polymerization reactor technical conditions
HG/T 20517 Steel low-pressure wet gas tank
HG/T 20549 chemical plant piping layout design requirements
HG/T 20675 chemical enterprises static grounding design procedures
HG/T 23008 Chemical overhaul inspection site safety management standards
HGJ212 metal welded wet gas cabinet construction and acceptance
SH/T 3054 petrochemical plant area of pipelines design code
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
It refers to the preparation of vinyl chloride and polyvinyl chloride production plant (plant), the fire ban area welding and cutting operations and in making explosive areas
Burners, electric drills, grinding wheel may have a temporary job flames, sparks and red hot surfaces.
3.2
It refers to clear sticky substance kettle and antifouling coating operations within the polymerization reactor.
4 basic provisions
4.1 General requirements
4.1.1 new construction, renovation and expansion of the preparation of vinyl chloride and polyvinyl chloride production plant (plant), safety facilities should be designed with the main project, with
When constructed and put into operation, after security clearance in accordance with law.
4.1.2 vinyl protection should be selected advanced production technology and production equipment to take measures so that health and safety conditions of the production system in line with
GB/T 12801 requirements.
4.1.3 vinyl chloride degree belongs hazard grade Ⅰ (extremely hazardous) occupational exposure to toxic substances, in direct contact with vinyl chloride from hazardous chemicals
Industry personnel should be carried out safety education and training. Examination obtain a certificate before induction operation.
4.1.4 Preparation of vinyl chloride and polyvinyl chloride production plant should be set up production safety management mechanism, with full-time or part-time safety manager
Member of the production plant is responsible for production management and safety personnel should have with the unit engaged in productive activities appropriate knowledge of production safety
And management capabilities.
4.1.5 In prone to accidents or more dangerous place, and the other is necessary to draw attention to a safe place, should be GB 2894
Requirements set safety signs.
4.1.6 pressure vessel design, manufacture, installation, use, inspection, repair and alteration, shall comply with the relevant provisions of the pressure vessel.
4.1.7 storage, transportation chloride, management of dangerous chemicals should comply with the relevant regulations.
4.1.8 VCM production, storage and use of units of vinyl chloride leak should develop contingency plans, preparation plans should be consistent with AQ/T 9002 in
The content, and apply to the relevant departments for the record, organize regular emergency training, drills and timely amendment.
4.2 Fire Facilities
Fire exits and polyvinyl chloride 4.2.1 device is preferably annular. Its fire should be GB 50016, and set fire water
And fixed fire extinguishing system. And should be based on the nature of fire and fire materials with appropriate species, a sufficient number of fire equipment, see Appendix A.
4.2.2 synthesis, compression, distillation and polymerization and other major production jobs should be set to automatic fire alarm and flammable, toxic gas alarm device.
4.3 Electrical Safety
4.3.1 vinyl chloride and polyvinyl chloride production plant design, installation and inspection of explosion and fire hazard electrical installations should comply with
GB 50058, GB 50257 of the regulations. Explosive gas atmospheres explosion-proof electrical products should meet the requirements of GB 3836.
4.3.2 the polymerization system should supply a load, which controlled instruments, communications, lighting, etc. there should be an additional emergency power supply, emergency power supply
Power-up time is determined by the technically demanding production downtime.
4.4 lightning protection, anti-static
4.4.1 build various types of plant (plant) within the structures, outdoor equipment, storage tanks should be GB 50057 set mine facilities. Co-vinyl chloride
Cheng, distillation, the polymerization system belongs to the first class of mine Ⅱ built structures.
4.4.2 Equipment chloride plant (plant) within the pipeline should be HG/T 20675 requirements for anti-static protection and lightning protection range
within.
4.4.3 In addition to device has special requirements, lightning protection and grounding wire and anti-static grounding wire should equipotential connection.
4.4.4 belt should be made of antistatic belt.
4.5 ventilation
Vinyl chloride escape place, you should configure the appropriate means of mechanical ventilation depending on the vinyl chloride to escape contamination. PVC plant
Ventilation design less than 12 times/h.
Color and logo 4.6 pipeline
Pipe wall colors, logos shall implement the provisions of GB 7231. Gas, liquid vinyl chloride pipe shall be marked with the media flow, Flip (to) the valve should be
Directions of rotation.
4.7 Personal Protection
4.7.1 directly engaged in vinyl chloride job should take personal protective measures, the operator should be equipped with effective gas masks.
4.7.2 vinyl chloride production, use, storage positions should be equipped with the right amount of long tube breathing apparatus and positive pressure oxygen breathing apparatus or positive pressure air
Air respirator.
4.8 Determination of gas concentration
4.8.1 vinyl chloride workplace (such as synthetic, compressor room, distillation, seed preparation, polymerization, stripping, precipitation, centrifugation, drying, packaging and other positions)
Vinyl chloride concentration should be measured regularly, and promptly published in the field. Its vinyl chloride in the air time weighted average allowable concentration of 10mg/m3.
4.8.2 In special places (such as seeds reactor, polymerizer, precipitation tank, filters or closed equipment, etc.) inside job, the job should be monitored ring
Flammable gases in ambient air (such as vinyl chloride) and changes in oxygen concentration, measured at least once every 2h.
5 safety
5.1 Design Requirements
5.1.1 regional arrangement
a) new construction, renovation and expansion of PVC production plant (plant) according to the pertinent provisions of the safety evaluation.
Device area b) synthesis of vinyl chloride, the polymerization system should be arranged in the summer minimum frequency wind neighborhood and living service area upwind
side. Its plant from the edge of the edge of the residential area CHP distances shall comply with the provisions of GB 11658; with an adjacent plant or equipment
Shi fire spacing should meet the requirements of GB 50160-1992.
c) net of vinyl chloride, compression, distillation, a slurry (or latex) treatment equipment and centrifugal drying system should be arranged in a spacious area, Paul
Between card devices have good ventilation.
Instrument Control Room d) the plant area should be set up independently, room should be equipped with a telephone and other communications devices. Instrument control explosion hazard area
Room should comply with the relevant provisions of the AQ3009.
5.1.2 Plant structure
a) synthesis of vinyl chloride, net, compression, distillation, filling and polymerization plant, production category (fire hazard) belonging to Group A, refractory plant
Ratings should not be less than two. Centrifugation, drying, packaging plant, the production of Class C category. Each plant should be arranged in line with
GB 50016's requirements.
b) a vinyl chloride plant, should make full use of natural ventilation ventilation, environmental, climatic conditions allow, can be open or semi-open
Open structure, should not load-bearing wall frame structure, if necessary, using local brick refractory limit not less than 3.5h do not burn
Body wall; not natural ventilation place, forced ventilation measures should be taken. Plant security entrance and stairs should be consistent
GB 50016's requirements.
c) polymerization of vinyl chloride plant and the plant should be set up relief facilities. Packaging plant surface should be flat, smooth and easy to clean.
5.2 equipment and spare parts
5.2.1 tube of vinyl chloride converter tube plate material selection should be consistent with the relevant provisions of GB 151-1999, and the inner surface of the cover layer under cover
It should be used in anti-corrosion material lining.
New installation and overhaul after conversion in the column 3.17.3 provisions pipe and plate joints shall GB 151-1999 air tightness test
Verify compliance with the relevant inspection requirements can be put into use.
5.2.2 compressor copper chloride copper content should be less than 70% of the member.
5.2.3 Synthesis of vinyl chloride, vinyl chloride distillation system equipment contact, piping, valves, instruments shall be of steel, cast iron, steel or non-ferrous metals
Genus (such as aluminum, titanium, nickel) material, in line with the relevant national and industry standards, should not be used copper, silver (including silver solder), mercury material.
5.2.4 seed reactor, polymerizer and paste (or latex) tank and other equipment should be made of stainless steel plate and enamel materials. Bearing copper content can be rotated
Less than 70% of the copper alloy material. Seed reactor, polymerizer valve should be used in stainless steel.
5.2.5 vinyl chloride equipment, piping, valves, instrumentation connections should be tight. Connecting equipment, piping and accessories can be flange, other parts should
By welding. Flange gasket should be used at asbestos, fluorine plastic, graphite treated asbestos and other flexible fabric filler or gaskets, not
Use ordinary rubber mats.
5.2.6 All synthetic, net system, distillation, gas tank, seed preparation, filtering, aggregation, storage tanks, stripping, precipitation and other equipment shall be airtight
Test, and meet inspection requirements 5.2.1.
5.2.7 compressor, a homogenizer, rotary shaft seed reactor, the polymerization reactor, a slurry (or latex) tank, precipitation tank, centrifuges, pumps and other machinery and equipment
Mechanical seals shall comply with the relevant standards.
The control and operating indicators 5.3 Material
5.3.1 intermediate material control index, to the formulation of cross-checking, strict control shall be carried out in three steps (factory, workshop, station) test
Nuclear, plant control important indicators should set up a "critical point." Change should have appropriate security measures and approved by the director or chief engineer.
5.3.2 synthetic material, net, compression, distillation, seed preparation, polymerization and slurry (or latex) processing system storage, use should be consistent
Its process control targets and safety requirements. Wherein no free chlorine hydrogen chloride, oxygen-containing fraction is less than 0.4% by volume. Acetylene purity of greater than
98.5%, excluding parathion. Aspirated oxygen-containing vinyl chloride cabinet should be less than 3%.
5.3.3 vinyl chloride synthesis mixer temperature control should not exceed 50 ℃.
5.3.4 Before a large vinyl chloride converter cover removal, should be replaced with nitrogen and the internal converter temperature dropped below 60 ℃, reducing mercury pollution.
5.3.5 vinyl chloride and equipment at the compressor inlet operating pressure of the pipeline, should maintain a positive pressure.
5.3.6 vinyl chloride tank and tank measurement loading should not exceed 85% of its volume.
5.3.7 feeding the polymerization system with raw materials should someone weighing and review. Vinyl chloride monomer should be measured body temperature changes according to the season
Plot - in terms of quality, guarantee accurate feeding, to prevent causing over-temperature, over-pressure and other accidents within the polymerization reactor.
5.4 safety device
5.4.1 production plant at the top of its lightning protection equipment 4.4.1 shall be specified settings.
5.4.2 anti-static grounding resistance of the vinyl chloride piping systems shall comply with the provisions of GB 50160-1992 in 8.3.5.
5.4.3 Where vinyl chloride gas venting device shall be provided venting means. Indoor equipment venting outlet means, should be above the roof. Room Peripherals
The outlet vent should be higher than the operating equipment near the surface more than 2m.
Venting means should be used in metal materials, should not use plastic pipe or hose. Flame arrester shall be provided on the device, static grounding should be taken. tube
The mouth should be rain, snow blocking canopy.
5.4.4 vinyl chloride tank, measuring tank, seed reactor, polymerization reactor pressure vessels, etc., should be equipped with safety valve, pressure gauge, you should use two measurement points, and
Regularly check; need to install the gauge should be used to meet the requirements of the level gauge. Synthesis mixer, seed reactor, polymerization reactor should be installed over-temperature, over-pressure signal
Alarm devices and safety interlocks.
5.4.5 nitrogen tube synthesis, polymerization system should be set up check valve to prevent its vinyl chloride into the tube.
Pneumatic valves and instrumentation, gas supply source 5.4.6 automatic control system shall comply with the provisions of GB/T 4830's.
5.4.7 controlled device redundancy design principles should alternate means, and should install grounding device.
5.5 production area, there should be no open flames and may produce flames, sparks work (hot work areas should be fixed from the production area 30m or more).
Hot or maintenance required during production needs, should go through examination and approval procedures for hot work, according to regulations 7.2.
5.6 vinyl chloride production system running, do not use iron tools strike, with pressure repair and tightened security measures should not, should not wear belt
Spikes and easy clothing generate static electricity into the production site.
5.7 Distillation system without nitrogen replacement when, should not be directly replaced with compressed air.
5.8 the operation of the device according to relevant national regulations for operation and maintenance, and inspection tours. Valves, instrumentation and safety devices should be set
Of inspection, identify problems and timely reporting, emergency situations can stop processing.
5.9 seed reactor, the polymerization vessel inner wall of the bonding reaction product should be removed regularly, according to the provisions of 7.3.1 implementation. To mitigate the kettle to make clear
Industry strength and pollution, should take effective antifouling measures.
5.10 polymerizer discharge operation, it should not use pressurized air to the autoclave.
5.11 found vinyl chloride synthesis feed gas containing excessive free chlorine, it should immediately shut off the main acetylene inlet valve, emergency stop treatment, prevention
Only chlorine acetylene combustion, explosion.
5.12 suddenly without water, power, resulting in seed reactor, polymerization reactor temperature and pressure rise, should be added to terminate the polymerization reaction terminating agent or
Material kettle row to the precipitation tank (or latex tank), and where a large number of evacuation, you should take emergency measures to prevent the spread of the accident.
Distillation tail gas and 5.13 for the control polymerization slurry (or latex) of vinyl chloride loss, pollution prevention, the following measures should be adopted.
5.13.1 After the low-boiling distillation tower installed to prevent the loss of vinyl chloride tail gas absorption (absorption) devices. Design of the device shall make rectification tail gas row
Vinyl chloride at a concentration of 10mg/m3.
5.13.2 establish a polymerization reactor, precipitation tank and other equipment of the material recovery.
5.13.3 before drying system is provided to remove slurry or latex or vinyl chloride stripping unit control measures. Options should be removed so that through
PVC finished after measures to deal with the residual vinyl chloride monomer content in line with the provisions of GB/T 5761 or GB 15592's.
6 pipeline and equipment
Construction, inspection and welding pipe 6.1 shall comply with the provisions of GB 50235 and GB 50236's.
6.2 Arrangement in the factory pipeline, pipe production unit shall be arranged according to SH/T 3054, HG/T 20549 requirements performed separately.
6.3 pipe laying
6.3.1 laying pipe, the pipe should be based on the nature of the medium, the plant topography, safety, transportation, construction, maintenance and other factors
Consideri...
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