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HJ 2028-2013 English PDF

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HJ 2028-2013: General technical specification for electrostatic precipitation engineering
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HJ 1347.1   HJ 1347.2   HJ 1346.1   

Basic data

Standard ID HJ 2028-2013 (HJ2028-2013)
Description (Translated English) General technical specification for electrostatic precipitation engineering
Sector / Industry Environmental Protection Industry Standard
Word Count Estimation 44,416
Quoted Standard GB 4053.1; GB 4053.2; GB 4053.3; GB 7251.1; GB 15577; GB 50007; GB 50009; GB 50010; GB 50011; GB 50014; GB 50015; GB 50016; GB 50017; GB 50018; GB 50019; GB 50029; GB 50040; GB 50051; GB 50140; GB 50187; GB 50205; GB 50231; GB 50251; GB/T 700; GB/T 715; G
Regulation (derived from) ?Ministry of Environmental Protection Announcement 2013 No. 18
Issuing agency(ies) Ministry of Ecology and Environment
Summary This standard specifies the ESP project design, installation, debugging, common technical requirements and acceptance and operation and maintenance. This standard applies to the use of rapping way or the rotating brush cleaning electrostatic precipitator

HJ 2028-2013: General technical specification for electrostatic precipitation engineering

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General technical specification for electrostatic precipitation engineering National Environmental Protection Standard of the People's Republic General technical specifications for electric dust removal engineering General technical specification for electrostatic precipitation Engineering Published on.2013-3-29 2013-7-1 implementation Ministry of Environmental Protection released

Content

Foreword..II 1 Scope..1 2 Normative references..1 3 Terms and Definitions.4 4 Contaminants and pollution loads.4 5 General requirements..6 6 Process Design..8 7 Main process equipment and materials.15 8 Detection and process control 17 9 Major auxiliary projects.19 10 Labor safety and occupational health..24 11 Construction and acceptance 25 12 Operation and Maintenance 30 Appendix A (informative) minimum spacing between pipe racks and other objects..33 Appendix B (informative appendix) selection conditions..34 Appendix C (informative appendix) Electrostatic precipitator selection steps and calculation methods..39 Appendix D (informative) Rotating electrode design requirements. 42 Applicable occasions and technical requirements for the ash conveying method in Appendix E (informative appendix)..43 Appendix F (informative) Characteristics and comparison of electric precipitator high voltage power supply 45 Appendix G (informative appendix) PC system configuration requirements 48 Appendix H (informative) Electrostatic precipitator boost record.49 Appendix I (informative) Electrostatic Precipitator Operation Record..50

Foreword

In order to implement the Law of the People’s Republic of China on Environmental Protection and the Law of the People Standardize the construction and operation management of electric dust removal projects, control smoke (powder) dust emissions, improve environmental quality, and promote the electric dust removal industry Technical progress, the development of this standard. This standard specifies the general technical requirements for the design, installation, commissioning, acceptance and operation and maintenance of electric dust removal engineering. This standard is a guidance document. This standard is the first release. This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection. This standard is mainly drafted by. China Environmental Protection Industry Association, Guodian Environmental Protection Research Institute, Nanjing Guodian Environmental Protection Division Technology Co., Ltd., Zhejiang Feida Environmental Protection Technology Co., Ltd., Anhui Significance Environmental Protection Equipment Co., Ltd., Sinosteel Tiancheng Environmental Technology Co., Ltd., Tianjie Group Co., Ltd., Zhejiang Jiahuan Electronics Co., Ltd., Fujian Longjing Environmental Protection Co., Ltd. Limited company. This standard was approved by the Ministry of Environmental Protection on March 29,.2013. This standard has been implemented since July 1,.2013. This standard is explained by the Ministry of Environmental Protection. General technical specifications for electric dust removal engineering

1 Scope of application

This standard specifies the general technical requirements for the design, installation, commissioning, acceptance and operation and maintenance of electric dust removal engineering. This standard is applicable to the dust-containing gas purification treatment project using a vibrating or rotating brush type cleaning electrostatic precipitator, which can be used as a ring. Environmental impact assessment, design and construction of environmental protection facilities, environmental protection acceptance and technical basis for operation and management after completion. The technical requirements set forth in this standard are versatile, and the specific requirements are required to implement the dust removal engineering technical regulations of relevant industries. Fan.

2 Normative references

The contents of this standard refer to the terms in the following documents. For undated references, the valid version applies to this standard. GB 4053.1 Fixed steel ladders and platforms - Safety requirements - Part 1 GB 4053.2 Fixed steel ladders and platforms - Safety requirements - Part 2 GB 4053.3 Fixed steel ladders and platforms - Safety requirements - Part 3. Industrial protective railings and steel platforms GB 7251 low-voltage switchgear and control equipment GB 15577 dust explosion safety regulations GB 50007 Building Foundation Design Specification GB 50009 Building Structure Load Specification GB 50010 concrete structure design specification GB 50011 seismic design code for buildings GB 50014 Outdoor Drainage Design Code GB 50015 Building Water Supply and Drainage Design Code GB 50016 Building Design Fire Code GB 50017 steel structure design specification GB 50018 Cold-formed thin-walled steel structure technical specification GB 50019 Heating, Ventilation and Air Conditioning Design Code GB 50029 compressed air station design specification GB 50040 power machine basic design specification GB 50051 chimney design specification GB 50140 Building Fire Extinguisher Configuration Design Specification GB 50187 General Plan for Design of Industrial Enterprises General specification for construction and acceptance of GB 50231 mechanical equipment installation engineering GB 50251 gas pipeline engineering design specification GB/T 700 carbon structural steel Carbon steel hot rolled round bar for GB/T 715 standard parts GB/T 1228 high strength large hex head bolt for steel structure GB/T 1229 high strength large hex nut for steel structure GB/T 1230 high strength washer for steel structure GB/T 1231 High-strength large hexagon bolts, large hex nuts and washers for steel structures GB/T 1591 low alloy high strength structural steel GB/T 3632 steel structure with torsional shear type high strength bolt connection Technical requirements for torsion-shearing high-strength bolts for GB/T 3633 steel structures GB/T 3797 electrical control equipment GB/T 4172 weathering steel for welded structure GB/T 5117 carbon steel electrode GB/T 5118 low alloy steel electrode GB/T 5313 thickness direction performance steel plate GB/T 5780 Hex Head Bolt C Grade GB/T 5782 Hex Head Bolt GB/T 10433 cylindrical head welding nail GB/T 11352 cast carbon steel for general engineering GB/T 13931 electrostatic precipitator performance test method GB/T 16157 Determination of particulate matter in fixed pollution source exhaust gas and sampling method of gaseous pollutants GB/T 16845 Dust Collector Terminology GB/T 50033 Architectural lighting design standard GB/T 50058 Design Specification for Electrical Installations for Explosive and Fire Hazardous Environments GB J16 Building Design Fire Code GB J 87 Industrial Enterprise Noise Control Design Specification GBZ 1 industrial enterprise design hygiene standard GBZ 2 Industrial site harmful factors occupational exposure limit DL 408 Electrical Safety Work Procedures DL/T 461 Coal-fired power plant electric precipitator operation and maintenance guidelines DL/T 514 electrostatic precipitator DL/T 5044 Power Engineering DC System Design Technical Specification DL/T 5047 Power Construction Construction and Acceptance Technical Specifications Design procedure for thermal insulation paint of DL/T 5072 thermal power plant DL/T 5161.3 Electrical installation engineering quality inspection and assessment procedures D/T 5121 Thermal Power Plant Tobacco Pulverized Coal Pipeline Design Technical Specification High-voltage rectifier power supply for HJ/T 320 electrostatic precipitator HJ/T 321 electrostatic precipitator low voltage control power supply HJ/T 322 Environmental Protection Products Technical Requirements Electrostatic Precipitator HJ/T 397 Fixed Source Exhaust Gas Monitoring Technical Specification JB 2420 outdoor anti-corrosion electrical product conditions JB/T 5906 Electrostatic Precipitator Anode Plate JB/T 5909.1 Electrostatic precipitator with porcelain insulator support porcelain sleeve JB/T 5910 Electrostatic Precipitator Technical requirements for welding parts of JB/T 5911 electrostatic precipitator JB/T 5913 Electrostatic Precipitator Cathode Line JB/T 6407 electrostatic precipitator design, commissioning, operation, maintenance safety technical specifications JB/T 7671 Electrostatic Precipitator Airflow Distribution Simulation Test Method JB/T 8536 electrostatic precipitator mechanical installation technical conditions JB/T 9688 thyristor control high voltage power supply for electric dust removal JB/T 11075 Electrostatic precipitator with sulfur trioxide flue gas quenching and tempering system JB/ZQ 3687 Welding Specifications for Manual Arc Welding SDZ 019 General technical conditions for welding "Deep Provisions on the Design of Architectural Engineering Design Documents" (Building Quality [2003] No. 84) Measures for the Administration of Environmental Protection Acceptance for Completion of Construction Projects (Order No. 13 of the State Environmental Protection Administration)

3 Terms and definitions

The following terms and definitions established by GB/T 16845 apply to this standard. 3.1 Electrostatic precipitator electrostatic precipitator Refers to the dust collector that uses the high-voltage electric field to adsorb the charged dust and separate the dust from the dust-containing gas. 3.2 design efficiency design collection efficiency Refers to the theoretical dust removal efficiency of the precipitator calculated according to the following formula. QAe/1 •−−= ωη (1) Where. η-dust removal efficiency, %; Q-dust flow, m3/s; A- total dust collection area, m2; Ω-drive speed, m/s. 3.3 ensure efficiency efficiency collection efficiency Refers to the guaranteed dust removal efficiency guarantee value agreed upon in the contract. 3.4 dust specific resistance dust resistivity Refers to the resistance value of the dust per unit area at unit thickness, in Ω·cm. 3.5 specific collection area Refers to the dust collection area to which the dust flow gas per unit flow is distributed. It is equal to the ratio of the dust collection area to the flow rate of the dust-containing gas. The bit is m2/m3/s. 3.6 Flue gas tempering ash adjustive A process for injecting a chemical tempering agent into the flue gas to improve the specific resistance of the flue gas. 3.7 Standard State Standard State Refers to the state where the gas temperature is 273K and the pressure is 101325Pa, which is referred to as "standard state".

4 Contaminants and pollution loads

4.1 Contaminants 4.1.1 The specific resistance of dust-containing gas dust suitable for electrostatic precipitator treatment is generally 1×104~1×1013Ω·cm. When the specific resistance is too high When the dust-containing gas can be quenched and tempered, or the dust collection area is increased, the electrical performance is improved, and the new technology of the rotating plate is adopted. And other measures to ensure dust removal efficiency. 4.1.2 The temperature of the dust-containing gas at the inlet of the electrostatic precipitator should be less than or equal to 400 °C. When the temperature of the dust-containing gas is higher than the upper limit, it should be taken. Take cooling measures. 4.1.3 The dust concentration of the dust-containing gas at the inlet of the electrostatic precipitator should be less than or equal to 50g/m3. Pre-dusting should be set above the upper limit facility. 4.1.4 The main application areas of electrostatic precipitators include. a) Power industry. boiler flue gas dedusting; b) Metallurgical industry. sintering machine head, sintering machine tail, ironmaking blast furnace gas, steelmaking converter gas, whole grain, screening, Ducts and other stations and environmental dust removal; c) Building materials industry. kiln head, kiln tail, coal mill and other dusting points; d) Chemical industry. acid production; e) Paper industry. alkali recovery; f) Other industries. industrial boiler flue gas dedusting, special special industrial furnace, dusty exhaust particulate matter recovery, air purification Wait. 4.2 Pollution load 4.2.1 should understand the basic conditions and requirements of production process, equipment, work system, maintenance and repair, and master the discharge of pollutants Causes, types and physical and chemical properties, location and quantity, emission patterns and pathways, emissions and emission intensity, emission regulations Law, etc., as the original data and basis of engineering design. 4.2.2 Conduct a comprehensive and in-depth investigation of pollution sources, and collect physical and chemical properties of dust-containing gases according to engineering design needs. The original information mainly includes the following contents. a) the amount of dusty gas discharged from the pollution source (normal dust content, maximum dust content, minimum dust content); b) gas temperature and range of variation (maximum temperature, normal temperature, minimum temperature, dew point temperature); c) dust concentration; d) gas composition and concentration (SO2, NOX, O2, CO2, CO, etc.); e) gas pressure and moisture content; f) dust composition (SiO2, Al2O3, Fe2O3, CaO, MgO, Na2O, K2O, TiO2, P2O5, MnO2 Li2O, SO3, etc.); g) dust particle size, specific resistance, true density, bulk density, flammability, explosiveness, adhesion, wear, rest Angle, etc. h) The type, quantity and working system of the equipment that produces the pollutants. 4.2.3 The parameters of dust-containing gas are mainly based on test reports and design data. When the user is unable to provide the raw materials of the dusty gas and The data can be obtained by. a) commission a professional test unit to conduct the test; b) analogy of projects of the same type and size; c) engineering experience and formula calculation; d) Simulation test. 4.2.4 Design load and design margin should be approved according to pollutant characteristics, pollution intensity, emission standards and environmental impact assessment The requirements of the document are comprehensively determined. 4.2.5 Design load and design margin should fully consider the pollution load in the largest and most unfavorable conditions for the electrostatic precipitator The effect is ensured to ensure stable operation and to ensure design efficiency. 4.2.6 Exhaust volume of pollution source, amount of exhaust gas discharged from production equipment, air volume of inlet and outlet of heat exchanger, air volume treated by electrostatic precipitator, The design and selection of the air volume of the induced draft fan should be calculated according to the working air volume. Performance tests and test results should be performed in a standard state Accounting.

5 General requirements

5.1 General provisions 5.1.1 Electrostatic precipitator works shall be designed, manufactured and installed by units with corresponding national qualifications. 5.1.2 The design of the electrostatic precipitator project should adopt mature and stable technology, safe, reliable and economical process and equipment. 5.1.3 The configuration of the electrostatic precipitator project should not be lower than the equipment level of the production process equipment and be included in the production system management. Electric elimination Dust systems and equipment should be able to adapt to changes and fluctuations in the production process and should operate in synchronism with the corresponding production process equipment. 5.1.4 The electric dust removal process, technical level, configuration, automatic control and testing should be compatible with the production process and system of the enterprise. And in line with the requirements of national technical policies and standards. 5.1.5 The design period of the electric dust removal project should be compatible with the design life of the production process, and the design life of the electrostatic precipitator should not be low. In 30 years. The main structural parts of the electrostatic precipitator guarantee a service life of 30 years, and the electronic control equipment guarantees a service life of more than 10 years. 5.1.6 The design of voltage and seismic fortification of electric dust removal engineering should meet the requirements of national and industrial design codes and regulations. 5.1.7 The construction scale of the electric dust removal project should be based on the pollution source status, emission standards, technical level, engineering grade, and economic status. Factors such as conditions and engineering conditions are considered together and the following principles are followed. a) Master the pollution intensity, quantity, distribution form, etc. of the pollution source, and determine the maximum processing capacity of the electric dust removal system; b) When the production process may be expanded, the design of the electrostatic precipitator system and the selection of the main equipment should be reserved with appropriate margin. 5.1.8 The construction of electric dust removal project shall take measures to prevent secondary pollution, waste water, waste gas, waste residue, noise and other pollution. Emissions should be in accordance with appropriate national or local emission standards. 5.1.9 The electric dust removal project shall be in accordance with relevant national policies and regulations, air pollutant discharge standards and local environmental protection departments. A continuous monitoring system for pollutant discharge is required. 5.1.10 When the electric dust removal project is used to treat flammable and explosive dusty gas, reliable fireproof and explosion-proof measures shall be taken to ensure the dust removal system. Continuous and stable operation. 5.2 General layout 5.2.1 The general layout of the main equipment, auxiliary facilities, etc. of the electric dust removal project shall comply with GBZ 1, GB J 16, GB 50187 Provisions. 5.2.2 The layout of the flat surface of the electric dust removal project shall save land. Prevent harmful gases, smoke, dust, strong vibrations and high noise The harm of the sound to the surrounding environment. 5.2.3 For new projects, a moderate amount of open space should be reserved. The main equipment should be arranged according to the process of the process, as close as possible to pollution source. 5.2.4 There should be sufficient installation and maintenance space between and around the main equipment of the ESP project to facilitate construction and maintenance. Maintenance and transportation. 5.2.5 Electrostatic dust removal engineering pipe racks include inlet and outlet flue pipes, ash conveying pipes, cable trays, etc. and their supports. The arrangement of the pipe rack should Meet the following requirements. a) The clearance height and foundation position of the pipe rack shall not affect transportation, fire fighting and overhaul; b) should not hinder the natural lighting and ventilation of the building. 5.2.6 The minimum horizontal spacing between pipe racks and buildings and structures shall comply with the provisions of Table A.1 of Appendix A. 5.2.7 The minimum vertical spacing of pipe racks across railways and roads shall be in accordance with Table A.2 of Appendix A. 5.2.8 The indoor floor elevation of the building such as the control room and the top surface elevation of the equipment foundation should be higher than the outdoor ground by 0.15m. The indoor and outdoor elevation difference of buildings with vehicles entering and leaving is generally 0.15~0.30m; indoor and outdoor height differences without vehicle access can be More than 0.30m. 5.2.9 The main equipment area of the ESP project shall be poured with concrete floor. The site is flat and the slope is generally 0.5~2.0%. 5.2.10 The fire separation distance of the building (structure) shall meet the requirements of GB J 16 . Fire-fighting passages shall be provided around the main equipment. And meet the requirements of the design specifications. 5.2.11 ESPs that purify flammable and explosive dust should be placed in separate buildings and fireproofed with the plant The distance should meet the requirements of GB 15577 and GB J 16.

6 Process design

6.1 General requirements 6.1.1 The electric dust removal project should be reasonably configured according to the production process and emission requirements. Dust removal system particulate matter emissions should be in line with the country Or local air pollutant discharge standards, construction project environmental impact assessment documents and total amount control provisions. Post dust concentration Should meet the requirements of GBZ 1, GBZ 2 limits. 6.1.2 The basic components of the electric dust removal project are. collecting hood, electrostatic precipitator body, control device, unloading ash device, dust removal Pipes, fans, chimneys. 6.1.3 The electrostatic precipitator system should adopt a negative pressure system. In special cases, a positive pressure system can be used. 6.2 Process 6.2.1 According to the status and form of the pollution source, the common process of electrostatic precipitator is shown in Figure 1. a) Negative piezoelectric dust removal process b) Positive piezoelectric dust removal process Figure 1 Common ESP process 6.2.2 Electrostatic dust removal process In addition to the basic composition described above, insulation and pipe support should be configured according to the specific conditions of the project. Auxiliary facilities such as hangers and automatic control monitoring devices. 6.3 Pollution (dust) source control 6.3.1 A gas collecting hood shall be provided for dust-free gas that is not discharged from the organization. The form and arrangement of the gas collecting hood should meet the production operation and inspection Repair requirements. Dust gas ESP Body Fan chimney Unloading Gas collecting hood Other pollution Dyeing Unit ESP Body fan Unloading Chimney dusty gas Conditioner Gas collecting hood 6.3.2 For production equipment and parts that produce dusty gas, priority should be given to using a closed or exhaust cabinet and keeping it constant. Negative pressure. When a closed cover is not available or inconvenient, a semi-closed cover or an external collecting hood may be selected according to the production operation requirements, and Surround or close to the source of pollution as much as possible, and if necessary, add a soft curtain enclosure to prevent dust from spilling out. Escape type hot dust The collecting of the body should preferably adopt the top collecting hood; the pollution range is large, and the blowing suction hood can be adopted in the occasion of frequent production operations; It is not possible to set a fixed collector hood, and in the case of intermittent operation, an active (moving) hood can be used. 6.3.3 The exhaust vent of the collector hood should not be close to the open hole (such as operation hole, observation hole, discharge port, etc.) to avoid inhalation. Amount of air or material. 6.3.4 The design of the gas collecting hood should fully consider the airflow structure to avoid the dusty airflow passing through the human breathing zone. 6.3.5 When designing the gas collecting hood, the influence of interference airflow such as the wind on the smoke exhausting effect should be considered. 6.3.6 When the outer dimensions and volume of the gas collecting hood and roof collecting hood are large, the hood should be provided with multiple exhaust outlets. Gas collecting hood The shrinkage angle should not be greater than 60°. 6.3.7 The amount of exhaust air from the collector hood shall be determined in accordance with the principle of preventing the diffusion of dust or harmful gases into the environmental space. Exhaust air volume is The working air volume and the exhaust air volume can be obtained by the following methods. a) production equipment; b) actual measurement or simulation test; c) engineering analogy and empirical data; d) Design manual and theoretical calculations. 6.3.8 The gas collection hood should be able to achieve the collection effect of dusty gas (dust), and the capture rate is not lower than. a) 100% closed cover; b) semi-closed cover 95%; c) blowing the hood 90%; d) 90% of the roof exhaust hood; e) 100% control equipment containing toxic, harmful, flammable and explosive sources. 6.3.9 Where the gas collecting hood may enter the debris, the grille shall be provided with a grille. 6.4 Flue gas conditioning 6.4.1 In the coal used in coal-fired boilers, the sulfur...

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