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Technical specifications for dedusting engineering of thermal power plants
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HJ 2039-2014
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| Standard ID | HJ 2039-2014 (HJ2039-2014) | | Description (Translated English) | Technical specifications for dedusting engineering of thermal power plants | | Sector / Industry | Environmental Protection Industry Standard | | Classification of Chinese Standard | Z25 | | Classification of International Standard | 13.040.40 | | Word Count Estimation | 42,445 | | Date of Issue | 2014/6/10 | | Date of Implementation | 2014/9/1 | | Quoted Standard | GB 2893; GB 2894; GB 4053.1; GB 4053.2; GB 4053.3; GB 4208; GB 7251.1; GB 12348; GB 13223; GB 14048.1; GB 16297; GB 50007; GB 50009; GB 50010; GB 50011; GB 50014; GB 50015; GB 50016; GB 50017; GB 50018; GB 50019; GB 50029; GB 50033; GB 50040; GB 50052; GB | | Drafting Organization | Beijing Academy of Environmental Sciences | | Administrative Organization | ?Ministry of Environmental Protection Science, Technology | | Regulation (derived from) | Ministry of Environmental Protection Notice No. 42 of 2014 | | Issuing agency(ies) | Ministry of Environmental Protection | | Summary | This standard specifies thermal power plant smoke (powder) dust governance principles and practices, as well as dust engineering design, construction, inspection, operation and maintenance of technical requirements. This standard applies to coal and coal |
HJ 2039-2014
Technical specifications for dedusting engineering of thermal power plants
People's Republic of China National Environmental Protection Standards
Technical Specifications for Thermal Power Plant Dust
(release
draft)
Issued on.2014-06-10
2014-09-01 implementation
Issued by the Ministry of Environmental Protection
Table of Contents
Preface ..I
1. Scope .1
2 Normative references .1
3 Terms and definitions 3
4 pollutants and pollution load 4
5 general requirements .5
6 .7 Process Design
The main process equipment 7 19
8 detection and process control ..20
9 Main aided engineering 22
10 labor safety, occupational health and fire .25
11 construction and acceptance ..26
Operation and maintenance of 12 ..27
Appendix A (informative) Technical parameters precipitator 31
Annex B (informative) ESP Selection step ..34
Annex C (informative) bag filter selection step .35
Annex D (informative) ESP high voltage power source and compare the characteristics of 36
Annex E (informative) electrostatic precipitator high voltage high frequency power supply 38 Technical Requirements
Annex F (informative) ESP boost record table .. 40
Annex G (informative) .41 ESP log table
Appendix H (informative) bag filter log table 42
Annex I (normative) Electrostatic Fabric Filter log table 43
Foreword
For the implementation of the "People's Republic of China Environmental Protection Law", "People's Republic of China Air Pollution Prevention Law," Regulation
Fan thermal power plant construction and operation management of dust, improve air quality, the development of this standard.
This standard specifies thermal power plant dedusting engineering design, construction, inspection, operation and maintenance of technical requirements.
This standard is the guiding document.
This standard is the first release.
This standard is developed by the Ministry of Environmental Protection Science, Technology organization.
Drafting of this standard. Beijing Academy of Environmental Sciences, State Power Environmental Protection Research Institute, Tsinghua University,
Zhejiang Feida Environmental Science and Technology Co., Ltd., Shandong Aobo Environmental Protection Technology Co., Ltd., Jiangsu environmental protection Shin Co.,
Fujian Longking Corp.
This standard MEP June 10, 2014 for approval.
This standard since September 1, 2014 implementation.
The standard explanation by the Ministry of Environmental Protection.
Technical Specifications for Thermal Power Plant Dust
1 Scope
This standard specifies thermal power plant smoke (powder) dust governance principles and practices, as well as dust engineering design, construction, inspection,
Operation and maintenance and other technical requirements.
This standard applies to coal and coal gangue power plant removal projects, including boiler flue gas dust removal engineering and unorganized row
Discharge process (coal transport, storage, crushing, preparation, ash removal and transport processes such as desulfurization agent) dust works. can
As an environmental impact assessment, engineering design and construction, and acceptance of completed construction projects after the completion of operation and management skills
Surgery basis. HFO, smoke (powder) dust control and dust removal project of biomass power plants can be implemented by reference.
2 Normative references
The standard content of the following documents cited in the articles. For undated references, the effective version applies to this
standard.
GB 2158 workplace occupational hazard warning labels
GB 2893 Safety colors
GB 2894 Safety Signs and use guidelines
GB 4053.1 fixed ladders and platforms - Safety requirements - Part 1. Steel ladders
GB 4053.2 fixed ladders and platforms - Safety requirements - Part 2. Steel LADDER
GB 4053.3 fixed ladders and platforms - Safety requirements - Part 3. Industrial guardrails and steel platform
GB 4208 housing protection (IP Code)
GB 7251 Low-voltage switchgear and control equipment
GB 12348 boundary of industrial enterprises noise emission standards
GB 13223 Thermal Power Plant Air Pollutant Emission Standards
GB 16297 Air Pollutant Emission Standards
GB 50007 Code for design of building foundation
GB 50009 building structural load specifications
GB 50010 Design of Concrete Structures
GB 50011 Seismic Design of Buildings
GB 50014 outdoor drainage design specifications
GB 50015 Water and Drainage Design Specification
GB 50016 architectural design code for fire protection
Design of steel structures GB 50017
GB 50018 cold-formed steel specifications
GB 50019 Heating, ventilation and air conditioning design
GB 50029 air station design specifications
GB 50040 dynamic machine foundation design specification
GB 50052 power supply and distribution system design specifications
GB 50054 low voltage power distribution design specifications
GB 50057 Lightning in design
GB 50140 Building fire extinguishers configuration design specifications
GB 50187 for General graphic design specification
GB 50217 electrical engineering design of cables
GB 50229 fire protection design of power plants and substations
GB 50251 gas pipeline project design specifications
GB 50660 and medium-sized power plant design specifications
GB/T 3797 Electric Control Equipment
GB/T 3859.1 Semiconductor convertors - General requirements and line commutated converters - Part 1-1. Specification of basic requirements
GB/T 3859.2 Semiconductor convertors - General requirements and line-commutated converters Part 1-2. Application guide
GB/T 5117 non-alloy and fine grain steel electrode
GB/T 5118 heat-resistant steel welding rod
GB/T 6719 baghouse technology requirements
Transformer oil quality GB/T 7595 running
GB/T 11352 Carbon steel castings for general engineering purposes
GB/T 14048 Low-voltage switchgear and control equipment
GB/T 16845 precipitators
GB/T 50033 architectural lighting design standards
GB J 87 Industrial Enterprise Noise Control Design Specification
GB Z 1 Design of Industrial Enterprises hygiene standards
GB Z 2.1 Workplace Hazardous Occupational Exposure Limits - Part 1. Chemical hazardous agents
GB Z 2.2 Workplace Hazardous Occupational Exposure Limits - Part 2. physical factors
DL/T 387 power plant flue gas baghouse Selection Guide
DL/T 461 coal-fired power plant operation and maintenance of ESP Guide
DL/T 514 ESP
Overvoltage protection and insulation coordination DL/T 620 AC electrical installations
DL/T 1121 coal-fired power plant boiler flue gas dust bag engineering and technical specifications
DL/T 5035 power plant heating, ventilation and air conditioning design technical regulations
DL/T 5044 Electric Power Design Engineering Technical specification DC system
DL/T 5072 thermal power plant paint design Regulations
DL/T 5121 power plant coal smoke wind pipeline design Technical specification
DL/T 5137 Technical code for designing electrical measuring devices and energy metering
HJ/T 284 for environmental protection product requirements baghouse with electromagnetic pulse valve
HJ/T 320 environmental protection product ESP high voltage rectifier power supply
HJ/T 321 environmental protection product ESP low voltage control supply
HJ/T 324 for environmental protection product requirements baghouse with filter
HJ/T 326 for environmental protection product requirements baghouse with a membrane filter media
HJ/T 327 for environmental protection product requirements baghouse filter bag
HJ/T 328 environmental protection product pulse jet bag filter class
HJ/T 329 environmental protection product rotary cleaning bag filter
HJ/T 330 environmental protection product sub-room cleaning bag filter class
HJ/T 397 stationary source emission monitoring and technical specifications
JB 10191 safety requirements for pulse jet bag filter baghouse class with manifold box
JB/T 5845 Standard Test Method for High Voltage Electrostatic Precipitator rectifier equipment
JB/T 5906 ESP anode plate
JB/T 5911 ESP weldment technical requirements
JB/T 5913 ESP cathode lines
JB/T 5916 baghouse with electromagnetic pulse valve
JB/T 5917 Technical condition for baghouse filter bag framework
JB/T 6407 ESP design, commissioning, operation, maintenance and safety specifications
JB/T 7671 ESP simulation test methods for air distribution
JB/T 8471 baghouse technical requirements for installation and acceptance
JB/T 8532 pulse jet bag filter class
JB/T 8536 ESP technology mechanical installation conditions
JB/T within 9535, preservative outdoor electrical products Environmental technical requirements
JB/T 9688 ESP with thyristor controlled high voltage power supply
JB/T 10341 cartridge filter
JB/T 11267 top electromagnetic hammer rapping ESP
JB/ZQ 3687 manual arc welding specifications
SDZ 019 welding General technical requirements
"Acceptance of completed construction projects management approach" (SEPA Order No. 13)
3 Terms and Definitions
Terminology and definitions The following terms and definitions GB/T 16845 apply to this defined standard.
3.1 Dust dust removal engineering works
Governance smoke (powder) dust pollution works by the flue dust collector, fan and system auxiliary device components.
3.2 unloading, conveying system ash discharging and transportation system
The precipitator dust collected complete sets of equipment delivered to the designated location.
3.3 standard state standard condition
Flue gas at a temperature of 273K, pressure of 101.325 kPa when the state, referred to as "standard state." As specified in this standard
Concentration of air pollutants refer to dry flue gas values of the standard state.
3.4 Low low low low temperature ESP ESP
Low temperature economizer or MGGH ESP inlet flue gas temperature is reduced to below the dew point of acid, the minimum temperature should meet
Wet desulphurization system for process temperatures required ESP.
3.5 wet electrostatic precipitator wet ESP
Collecting use liquid cleaning electrostatic precipitator.
3.6 Electrostatic Fabric Filter electrostatic-fabric integrated precipitator
Electrostatic dust and dust filtration mechanism combined with a composite filter.
3.7 Boiler Maximum Continuous conditions boiler maximum continuous rating
Condition boiler maximum continuous evaporation under short BMCR conditions.
3.8 Boilers operating conditions boiler economic continuous rating
Economic conditions evaporation under the boiler, steam turbine plant heat rate corresponding to the guarantee conditions, referred BECR conditions.
4 pollutants and pollution load
4.1 Pollutants
4.1.1 Thermal Power Plant smoke (powder) dust, soot and dust including fugitive emissions of boiler combustion process.
4.1.2 The main components of thermal power plant boiler flue gas include. SO2, SO3, NOX, O2, CO2, CO, N2, H2O and tobacco
Dust and the like.
4.1.3 The main chemical components of thermal power plant boiler soot include. Na2O, Fe2O3, K2O, SO3, Al2O3, SiO2, CaO,
MgO, P2O5, Li2O, TiO2 and the like.
4.1.4 fugitive dust emissions from thermal power plants including coal transport, storage, crushing, preparation and desulfurization agent to ash
In addition to the dust produced during transport and the like.
4.2 pollution load
4.2.1 According to the project design needs to be collected dust and gas fired power plant and other physical and chemical properties of raw materials, including.
Flue gas volume a) of the boiler (the normal amount, the maximum amount);
b) and flue gas temperature variation range (the maximum temperature, normal temperature, dew point temperature);
c) dust concentration (concentration of the actual working conditions, standard state, O2 content of 6% of the dry flue gas concentration);
d) flue gas components (SO2, SO3, NOX, O2, CO2, CO, H2O, etc.) and concentration;
e) the moisture content of the flue gas, the relative humidity;
f) the chemical composition of dust (Na2O, Fe2O3, K2O, SO3, Al2O3, SiO2, CaO, MgO, P2O5, Li2O,
TiO2, etc.);
g) a specific resistance of dust (including laboratory and conditions), particle size, true density, bulk density, adhesion and the like.
4.2.2 has been built boiler installation or retrofit dust removal system design conditions and working conditions should be checked according to the actual entrance of the dust removal system
Flue gas measurement parameters and includes the changing trend of fuel.
4.2.3 fugitive emissions of dust load should be based on actual need to set the amount of dust exhaust required.
4.3 dust effects
4.3.1 The concentration of dust emissions shall comply with the provisions of GB 13223.
Dust concentration 4.3.2 fugitive emissions shall comply with the provisions of GB 16297.
5 general requirements
5.1 General provisions
5.1.1 flue gas dust removal project
5.1.1.1 Thermal Power Plant should be strengthened and the ratio of fuel management, as far as possible to ensure operation at design conditions to ensure that subsequent precipitator
The operating results meet the discharge standards requirements.
5.1.1.2 After the dust removal project should be based on technical and economic comparison of emissions requirements, boilers burning coal and soot characteristics determined
Filter type.
5.1.1.3 Dust project should be reasonably configured according to the power production process should not be bypassed.
5.1.1.4 Dust engineering design pressure rating, seismic design should meet national and industry specifications.
5.1.1.5 construction dust, waste water generated during the operation, and prevention of waste and emissions of other pollutants, should implement
Implementation of the relevant provisions of existing national environmental regulations, etc., may not produce secondary pollution.
5.1.1.6 Dust engineering design, construction should take measures to reduce noise and effective sound insulation, noise reduction, greening, and noise
Vibration should be consistent with GB 50040 GB J 87 and the provisions of the plant boundary noise shall comply with the provisions of GB 12348.
5.1.1.7 thermal power plant flue gas emissions continuous monitoring system should be set up to monitor, and networking with the local environmental protection department. Flue Gas Cleaning
Inlet and outlet should be set to manual sampling smoke hole and operating platforms.
5.1.2 fugitive emissions of dust removal project
5.1.2.1 fugitive dust control emissions include dust, fully enclosed, semi-enclosed, enclosure, water spray dust suppression, curing,
We should strengthen the daily operation and management.
5.1.2.2 fugitive dust emissions shall comply with the provisions of GB 16297, and should be combined with the requirements of the surrounding landscape, if necessary, to dust
Landscaping works.
5.2 flue gas dust removal project general layout
5.2.1 Flue Gas Cleaning Works by flue dust, ash unloaded means fan, flue gas monitoring system, temperature and pressure
Detection devices, electrical and control systems and other auxiliary compressed air supply system.
5.2.2 The general layout principles to be followed include. equipment operation and stability, easy management and maintenance, economical, safety and health
Wait. The layout should be consistent with the overall dust GB 50660 and GB Z provisions 1, and meet the following requirements.
a) the process is reasonable, dust and other main equipment should be arranged as close to the source of pollution; arrangement of the facilities should be smooth,
Compact and beautiful;
b) the reasonable use of the terrain and geological conditions, and considering the prevailing wind and other atmospheric conditions;
c) make full use of the existing plant area utilities and power supply and distribution systems, taking into account the possible need for development;
d) transport facilitation, transport flow, to facilitate the construction, operation and maintenance and to consider the impact on the surrounding incidents may cause.
5.2.3 dust elevation site works, drainage and flood control ﹑ shall comply with the provisions of GB 50187.
5.2.4 Equipment should be left between the main dust project sufficient space for installation, maintenance space; convenient transportation. Body set up
Peripheral equipment shall be provided with transport routes and fire exits, the fire should be designed to comply with the provisions of GB 50016. Also surrounding the main device
It should have a crane or mobile crane working conditions.
5.2.5 General layout should prevent harmful gases, smoke (powder) dust, strong vibrations and high noise surrounding the environment.
5.2.6 New projects should set aside a modest space, to accommodate the need for tighter emission standards.
5.2.7 Project flue dust across the road, when the high-altitude railway laying, the flue should be designed to comply with the provisions of GB 50251, and left
Certain surplus height.
5.2.8 Dust project includes rack out of the flue gas, ash pipe, cable bridge and the bracket. Rack arrangement should be consistent
The following requirements.
a) the basis and the headroom shall not affect the position of transportation, fire protection and maintenance;
b) shall not preclude the building natural light and ventilation.
5.2.9 pipe frame and buildings, the minimum horizontal distance between structures should meet the requirements of Table 1.
Table minimum horizontal spacing unit and a frame buildings, structures between. m
Buildings and structures Name Minimum horizontal pitch
Building doors and windows of the outer edge of the wall or the outer edge of the protruding portion 3.0
Building without doors or walls of the outer edge of the outer edge of the protruding portion 1.5
Road 1.0
The outer edge of the sidewalk 0.5
Factory wall (centerline) 1.0
Lighting and communication post (center) 1.0
Note 1. Unless otherwise indicated by the table spacing, the tube rack from the outermost line counting; when urban road type, counting from the edge of the road, for road type,
Counting from the edge of the shoulder.
Note 2. This table does not apply to low-frame, ground-mounted and building support formula.
5.2.10 pipe rack over railways, roads minimum vertical spacing should be in accordance with Table 2.
Table 2 racks across railways, roads minimum vertical spacing unit. m
Name the minimum vertical spacing
Railway (counting from the top rail, general line) 5.5a
Road (counting from the Crown) 5.0b
Sidewalk (pavement from counting) 2.2/2.5c
Note 1. Unless otherwise indicated by the table spacing, the line from the outer edge of the protective equipment, counting from the date of the lowest part of the rack.
Note 2. a line overhead, the minimum vertical pipe rack over electrified railway spacing should comply with the relevant specification.
b have large transport requirements or during road maintenance has a large lifting devices should be determined according to need. When difficulties in ensuring security
Under the premise can be reduced to 4.5 m.
c Street area sidewalk is 2.2 m, blocks away from the sidewalk is 2.5 m.
5.2.11 control room and other interior building floor elevation, top elevation equipment base should be higher than 0.15 m above the ground outside.
A vehicle out of the building interior, foreign floor height is generally 0.15 m ~ 0.30 m; no vehicle access to the indoor and outdoor height difference
It may be greater than 0.30 m.
5.2.12 hydrant should be close to the road, and its distribution should meet firefighting radius requirements. Outdoor fire hydrant spacing should not exceed
120 m. Hydrant from the street should not be greater than 2 m, from the housing wall should not be less than 5 m.
5.2.13 Construction (structures) Fire spacing should comply with the provisions of GB 50016.
5.2.14 general layout scheme comparison should be proposed recommendation program, and draw the overall plan.
6 Process Design
6.1 General provisions
6.1.1 Thermal Power Plant Dust project should be reasonably configured according to the production process and emissions requirements. Engineering Export dust emissions to the environment should be
In line with national and local emission standards of air pollutants, the construction project environmental impact assessment documents and total control regulations; work
Workplace dust Occupational exposure limits shall comply with the limits and requirements of GB Z 1 GB Z 2.1, GB Z 2.2 requirements.
6.1.2 Dust project should adapt to changes in sources of gas, and when the characteristics of aerosol concentration should be varied within a certain range of normal
run. Dust project should be synchronized with the operation of the production process equipment, availability should be 100%.
6.1.3 precipitator design life and ancillary units should match the design life of 30 years shall design, overall design should be consistent with GB
50660 of provisions.
6.1.4 dust removal system is arranged and taken antifreeze, insulation and other measures should comply with the provisions of GB 50019. Hopper should be set
Insulation and heating systems.
6.1.5 dust unloading, Ash approach should meet the requirements of comprehensive utilization, storage and transportation of dust should prevent secondary pollution.
6.1.6 secondary dust pollution generated in the process should take appropriate control measures.
6.2 Process
6.2.1 Thermal Power Plant common flue gas dust removal process shown in Figure 1.
1 thermal power plant flue gas dust removal process
6.2.2 Thermal Power Plant and the main point of the fugitive emission control measures are shown in Table 3.
Table 3 Thermal Power Plant fugitive emission point and the control measures
Particulate matter emission control measures for point
Raw field/coal yard enclosed circular (or bar) coal fields, silos, Wind Dust Network
Coal trestle/water corridor, closed
Transshipment point baghou......
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