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HJ 2001-2018: General technical specification of ammonia flue gas desulfurization
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General technical specification of ammonia flue gas desulfurization
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HJ 2001-2018
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Technical specifications for ammonia flue gas desulfurization projects of thermal power plant
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Basic data | Standard ID | HJ 2001-2018 (HJ2001-2018) | | Description (Translated English) | General technical specification of ammonia flue gas desulfurization | | Sector / Industry | Environmental Protection Industry Standard | | Classification of Chinese Standard | Z25 | | Word Count Estimation | 36,385 | | Date of Issue | 2018-01-15 | | Date of Implementation | 2018-05-01 | | Older Standard (superseded by this standard) | HJ 2001-2010 | | Regulation (derived from) | Ministry of Environmental Protection Bulletin 2018, No. 11 | | Issuing agency(ies) | Ministry of Ecology and Environment | HJ 2001-2018: General technical specification of ammonia flue gas desulfurization---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
General technical specification of ammonia flue gas desulfurization
2018-1-15 released
2018-5-1 implementation
Directory
Foreword .II
1 scope of application .1
2 Normative references .1
3 Terms and definitions 4
4 pollutants and pollution load 5
5 General Requirements .6
6 process design .7
7 major process equipment and materials 11
8 Detection and Process Control
Main auxiliary works 14
Work Safety and Occupational Health .15
Construction and acceptance
12 Operation and Maintenance
Appendix A (informative) typical process 19
Appendix B (informative) routine analysis of test items and testing cycles
Appendix C (Informative) Construction (structure) building gravity load representative value calculation 23
Appendix D (informative) winter heating indoor calculation of temperature
Appendix E (informative) ammonia flue gas desulfurization project operation and maintenance management .25
Appendix F (informative) maintenance of major equipment and quality requirements .30
Foreword
In order to carry out "Law of the People's Republic of China on Environmental Protection" and "Law of the People's Republic of China on Prevention and Control of Atmospheric Pollution" and other laws and regulations, prevention and control ring
Pollution, improve the quality of the environment, regulate the ammonia flue gas desulfurization project construction and operation management, the development of this standard.
This standard specifies the ammonia flue gas desulfurization project design, construction, acceptance, operation and maintenance of technical requirements.
This standard was first released in.2010, this is the first revision.
The main content of this revision.
- Expand the scope of the applicable industries;
- Perfecting and supplementing the general technical requirements applicable to various industries, eliminating the special technical requirements applicable only to the thermal power industry;
- According to the technical development, the technical contents of flue gas system and absorption system were mainly adjusted, which supplemented the equipment selection requirements;
- Enrich the operation and maintenance of technical content;
- Improve the information appendix.
This standard was revised by the Ministry of Environmental Protection Science and Technology Standards Division.
This standard is mainly drafted by. China Environmental Protection Industry Association, Jiangsu Jiangnan Environmental New Century Co., Ltd.,
Beijing Institute of Labor Protection, Asia Pacific Environmental Protection Co., Ltd.
This standard MEP.2018 January 15 approved.
This standard since May 1,.2018 implementation.
This standard is interpreted by the MEP.
Ammonia flue gas desulfurization project general technical specifications
1 scope of application
This standard specifies the ammonia flue gas desulfurization project design, construction, acceptance, operation and maintenance of technical requirements.
This standard applies to ammonia flue gas desulfurization project can be used as construction project environmental impact assessment, environmental protection facilities design, construction, acceptance
And technical basis for operation and management.
The technical requirements proposed by this standard are general and special requirements to implement the relevant technical specifications of the industry.
2 Normative references
This standard references the following documents in the terms. For undated references, the effective version applies to this standard.
GB/T 150 pressure vessel
GB/T 311.1 Insulation coordination - Part 1. Definitions, principles and rules
GB/T 311.2 Insulation coordination - Part 2. Guidelines for use
GB/T 535 ammonium sulfate
GB/T 536 liquid anhydrous ammonia
GB 4053 fixed steel ladders and platform safety requirements
GB/T 4272 equipment and pipe insulation technology
GB 5083 General safety and health design of production equipment
GB 5749 drinking water health standards
Water quality - Determination of fluoride - Ion selective electrode method
GB 8569 solid chemical fertilizer packaging
GB/T 8570 Determination of liquid anhydrous ammonia
Water quality - Determination of chloride - Silver nitrate titration
GB 12348 industrial enterprises noise emission standards
GB/T 12801 production safety and health requirements General
GB/T 13148 stainless steel clad steel welding technology requirements
Determination of chloride ion in industrial circulating cooling water and boiler water GB/T
Determination of Particulate Matter and Gaseous Pollutants in Exhaust of Fixed Pollution Sources GB/T 16157
GB 16297 Integrated Air Pollutants Emission Standard
GB 18218 Hazardous chemicals identification of major hazards
GB 18241.1 Rubber lined - Part 1. Equipment anti-corrosion lining
GB 18382 fertilizer labeling content and requirements
GB/T.19923 urban sewage recycling industrial water quality
GB/T 23349 fertilizer arsenic, cadmium, lead, chromium, mercury ecological indicators
GB 50009 Building structural load specifications
GB 50011 Code for seismic design of buildings
GB 50013 outdoor water supply design specifications
GB 50014 outdoor drainage design specifications
Code for design of building water supply and drainage
GB 50016 architectural design code for fire protection
GB 50019 Heating Ventilation and Air Conditioning Design Code
Code for Design of Factory and Mine Roads
GB 50033 architectural lighting design standards
GB 50040 Power Machinery Basic Design Specification
GB 50046 industrial building anti-corrosion design specifications
GB 50050 industrial circulating cooling water treatment design specifications
GB 50052 for power distribution system design specifications
GB 50057 lightning protection design specifications
GB 50058 explosion and fire hazard electrical installations design specification
GB/T 50064 AC electrical installations overvoltage protection and insulation coordination design specifications
GB 50065 AC electrical installations grounding design specifications
GB 50084 automatic sprinkler system design specifications
GB/T 50087 Industrial Enterprise Noise Control Design Code
GB 50093 Automatic Instrumentation Engineering Construction and Quality Acceptance Specification
GB 50116 automatic fire alarm system design specifications
GB 50140 fire extinguisher configuration design specifications
GB 50160 petrochemical design fire safety specifications
GB 50187 General design of industrial enterprises
GB 50219 water spray fire extinguishing system design specifications
GB 50222 interior design fire protection specifications
GB 50231 Mechanical Equipment Installation Engineering Construction and Acceptance Common Specifications
GB 50243 ventilation and air conditioning construction quality acceptance criteria
GB 50254 Installation of electrical installations low voltage electrical construction and acceptance specifications
Specification for Construction and Acceptance of Electrical Lighting Fixtures for Installation of Electrical Installations
GB 50300 construction quality acceptance uniform standards
Design code for fire protection bank of GB 50351 tank
GB 50489 General layout of chemical industry transport design specifications
Specification for detection and alarm of flammable gases and toxic gases in petrochemical industry
GB/T 50655 chemical plant steam system design specifications
Fire protection water supply and fire hydrant system specification
GB 51245 Industrial building energy-saving design uniform standards
Design Code for Roads and Mines
GBZ 1 industrial design health standards
GBZ 2.1 Occupational exposure limits for hazardous agents in the workplace - Part 1. Chemical hazards
GBZ 2.2 Occupational exposure limits for hazardous agents in the workplace - Part 2. Physical factors
GBZ/T 194 workplace protection against occupational poisoning Hygienic engineering protective measures norms
AQ/T 3033 Chemical Construction Project Safety Design Management Guidelines
AQ 3035 Hazardous chemicals Hazardous sources Safety monitoring General technical specifications
AQ 3036 Dangerous Chemical Hazardous Area Tank Farm Site Safety Monitoring Equipment Setup Specification
DL/T 5044 Power Engineering DC Power System Design Technical Specification
DL/T 5403 thermal power plant flue gas desulfurization project to adjust the trial transport and quality acceptance assessment procedures
HG 1-88 ammonia
HG 20652 tower design technical specifications
HG/T 2451 Equipment Corrosion-resistant rubber lining
HG/T 2640 glass flake construction technology
HG/T 2784 industrial ammonium sulfite
HG/T 2785 industrial ammonium bisulfate
HG/T 3797 glass flake-lined clay
HG/T 20696 FRP chemical equipment design requirements
HJ/T 75 fixed pollution sources flue gas emissions continuous monitoring technical specifications
HJ/T 76 fixed pollution source flue gas emissions continuous monitoring system technical requirements and testing methods
HJ 533 Ambient and exhaust air - Determination of ammonia - Nessler 's reagent spectrophotometric method
JB/T 10989 wet flue gas desulfurization equipment for equipment demister
JT 617 Rules for the Transport of Dangerous Goods by Car
NB/T 47003.1 steel welded pressure vessel
NB/T 47041 tower container
SH/T 3007 petrochemical storage and transportation system design specifications of the tank farm
SH 3047 Code for Design of Occupational Safety and Health in Petrochemical Enterprises
SH/T 3053 petrochemical plant planning general layout design
TSG 21 Pressure Vessel Safety Technology Supervision Regulations
"Hazardous Chemicals Safety Regulations" (State Council Decree No. 591)
"Safety Supervision and Management Measures for Construction Projects of Hazardous Chemicals" (No. 45 of the State Administration of Work Safety)
Provisions on Supervision and Management of Major Hazardous Chemicals Hazardous Chemicals (No.40 of the State Administration of Work Safety)
3 Terms and definitions
3.1 ammonia flue gas desulfurization process ammonia flue gas desulfurization
Refers to the amino material as an absorbent to remove flue gas SO2 and other acid gas wet flue gas desulfurization process, referred to as the ammonia method.
3.2 desulfurization project desulfurization project
Refers to the facilities, equipment, components and systems integration required to remove SO2 and other sour gases from the flue gas with absorbent.
3.3 absorbent absorbent
Refers to the desulfurization project for the removal of SO2 and other acid gas reactants.
3.4 absorber absorber
Refers to the desulfurization project to achieve absorbent and SO2 and other acidic gases reaction facilities.
3.5 By-product
Refers to the absorber and flue gas SO2, O2 and other substances generated after the reaction.
3.6 Desulfurization efficiency desulfurization efficiency
Refers to the amount of SO2 removed by the desulfurization project and the amount of SO2 contained in the flue gas without desulfurization, calculated according to formula (1)
Desulfurization efficiency = (C1-C2)/C1 × 100 ...(1)
Where.
C1 - conversion concentration of SO2 in flue gas before desulfurization, mg/m3;
C2 - SO2 flue gas desulfurization concentration, mg/m3.
3.7 booster fan booster fan
Refers to the new increase in fan resistance to overcome the desulfurization project.
3.8 oxidation fan oxidation fan
Means the desulphurization of ammonium bisulfite (hydrogen) to ammonium sulfate oxidation of the fan.
3.9 Particles particle
Refers to the sum of the particulate matter of the solid and solution suspended in the flue gas.
3.10 ammonia slip concentration ammonia slip
Refers to the desulfurization project operation, the absorption unit outlet unit of flue gas volume (dry basis) of free ammonia (NH3 molecules in the form of ammonia,
Excluding droplet, ammonium salt in particulate matter).
3.11 oxidation rate oxidation rate
Refers to the unit volume (such as 1L) absorption of circulating liquid, concentrated circulating liquid in the number of moles of sulfuric acid (hydrogen) salt and bisulfite (hydrogen)
The percentage of the total number of moles of salt material, according to formula (2) Calculated.
3.13 absorption tower saturated crystal in absorber
Refers to the use of flue gas in the absorption tower heat, the by-product solution to reach saturation and the crystallization process, referred to as the tower crystallization.
3.14 Absorption tower evaporation crystallization evaporative crystal out of absorber
Refers to the absorption tower outside the use of steam and other heat sources, the byproduct solution was evaporated and the crystallization process, referred to as the tower crystallization.
3.15 Drop concentration dripping content
Refers to the unit of net flue gas desulfurization flue gas volume (dry basis count) carried droplets converted into concentrated circulating liquid mass concentration.
4 pollutants and pollution load
4.1 Absorption tower inlet flue gas conditions.
a) SO2 concentration (dry basis conversion) should not be higher than 30000 mg/m3;
b) The amount of flue gas should be more than 50,000 m3/h (dry basis);
c) flue gas temperature should be 80 ℃ ~ 170 ℃;
d) The concentration of particles (dry basis conversion) should not be higher than 50 mg/m3.
4.2 ammonia flue gas desulfurization project main application areas include. power generation boilers, industrial boilers and sintering and pellets, coking, non-ferrous smelting, electricity
Aluminum, carbon and other furnaces.
4.3 new project desulfurization project design flue gas volume and SO2 concentration should adopt the maximum continuous operating conditions of the data; renovation and expansion project desulfurization project
Design flue gas and SO2 concentration should be based on the measured value and take full account of the trend of change after the comprehensive determination, or by analogy with similar projects to determine.
4.4 should be based on engineering design needs to collect the physical and chemical properties of flue gas and other raw materials, including the following.
a) the amount of flue gas (normal, maximum, minimum);
b) flue gas temperature and range (normal, maximum, minimum and dew point temperature);
c) gas composition and concentration in flue gas (SO2, NOX, O2, SO3, HCl, HF, etc);
d) smoke particulate matter concentration and composition;
e) flue gas pressure, moisture content;
f) pollutant equipment and working conditions.
5 general requirements
5.1 General Provisions
5.1.1 The flue gas desulfurization project of the new project should be designed, constructed and put into operation simultaneously with the main project.
5.1.2 desulfurization project layout should be consistent with the factory master plan. Design documents should be submitted according to the content and depth of approval, approval and filing.
Desulfurization project construction should be the national project construction procedures.
5.1.3 Desulfurization Project SO2 emission concentration should meet the national and local emission standards.
5.1.4 desulfurization project design should take full account of fuel, raw materials and the main project load changes to improve the desulfurization process system adaptability and adjustability.
5.1.5 desulfurization project required water, electricity, gas, steam and other public works should make the best use of the main engineering facilities. Absorbents and by-products should be equipped with metering devices, but also with the main project share.
5.1.6 Desulfurization project design, construction and operation, should take effective noise, noise reduction, green noise reduction measures such as noise and vibration control
System design should be consistent with the provisions of GB/T 50087 and GB 50040, the noise at the boundary should meet the requirements of GB 12348.
5.1.7 Desulphurization project should be based on the characteristics of flue gas, emission requirements, by-product quality requirements, consider the coordinated treatment of multiple pollutants, and control the secondary pollution.
5.1.8 desulfurization project should be set to control the proliferation of chlorine, organic matter, particulate matter and other facilities, facilities.
5.1.9 Desulfurization Project The automatic continuous smoke monitoring system (CEMS) shall be set up and operated in accordance with the requirements of HJ/T 75, HJ/T 76 and local environmental protection authorities.
5.1.10 Desulfurization project design, construction and operation and maintenance should be consistent with national and industry quality, safety, health, fire and other regulations and standards.
5.2 Engineering composition
5.2.1 desulfurization projects generally include process systems, public systems and ancillary works.
5.2.2 process system includes flue gas system, absorbent system, absorption cycle system, by-product processing system.
5.2.3 Common system Including process water system, compressed air system, steam system.
5.2.4 Auxiliary projects include electrical, building and structure, water supply and drainage and fire fighting, heating, ventilation and air conditioning, roads and greenery.
5.3 General layout
5.3.1 General provisions
5.3.1.1 The general layout shall comply with the provisions of GB 50016, GB 50160, GB 50187, GB 50489, SH/T 3053 and corresponding industries, and follow the following principles.
a) process layout is reasonable, short flue gas;
b) convenient transportation;
c) facilitate the construction, is conducive to maintenance and repair;
d) rational use of topography and geological conditions;
e) make full use of the public facilities in the factory;
f) land conservation and intensive, small amount of work, low operating costs;
g) Compliance with environmental protection, fire protection, occupational safety and occupational health requirements.
5.3.1.2 By-product processing system should be based on process and site conditions layout. Generally should be arranged in the absorption cycle system and the relative
Independent, easily accessible area where material is circulated between the absorption and recycling systems and the byproduct disposal system.
5.3.1.3 The by-product treatment system warehouse should be arranged along the road with smooth traffic, and be convenient for natural ventilation.
5.3.2 Transportation
5.3.2.1 desulfurization project within the road design, should ensure that the material transport convenience, fire access, easy maintenance, to meet the site drainage
Requirements, and in line with GB J 22 requirements.
5.3.2.2 desulfurization road within the project area should be formed with the road network ring road network. According to the production, fire and maintenance needs, you should set the line
Roads, fire engines and sidewalks.
5.3.2.3 Longitudinal slopes of parking sections in material handling area should be flat slopes. When the layout is difficult, the slope should not be more than 1.5% and enough cars should be provided
Will car, swing field, and road surface hardening requirements.
5.3.2.4 Desulphurization projects The roads in the densely-populated areas should be treated with concrete ground hardening, etc., in order to facilitate maintenance and cleaning.
5.3.2.5 By-product processing system should be set up between the plant and warehouse smooth transport lanes.
5.3.2.6 When the absorbent is liquid ammonia should be used tanker or pipelines, the total layout should also comply with GB 50160, GB 50351, GB
18218, "Hazardous Chemicals Safety Management Regulations", "Hazardous Chemicals Construction Project Safety Supervision and Management Measures" and the corresponding provisions of the relevant industries.
5.3.3 pipeline layout
5.3.3.1 desulfurization pipeline layout should be based on the total layout, pipeline transportation medium, construction and maintenance and maintenance and other factors identified in the plane and
Space should be coordinated with the main project.
5.3.3.2 The centralized arrangement of pipes shall follow the following principles. pipes containing corrosive medium shall be arranged at the lowest level of pipe racks, and public pipelines, cable bridges
The frame is arranged in the upper layer in turn.
5.3.3.3 pipeline compensator, inspection port, etc. should be staggered layout to avoid conflict. When there are more underground pipelines, pipe racks should be arranged in a centralized manner.
5.3.3.4 Arrangement of liquid ammonia pipe in the multi-layer pipe gallery, should be arranged with steam pipes, cables and other layers. Single-layer pipe layout, liquid ammonia pipeline
And steam pipe, the layout of the cable spacing should be consistent with safety, maintenance and other specifications. Double or multi-layer pipe layout, the liquid ammonia should be arranged in the pipeline
Lower level.
6 process design
6.1 General Provisions
6.1.1 desulfurization process design should be mature and reliable, safe and stable operation, technical and economical and reasonable process technology, environmental management should meet the
Under the premise of seeking, take full account of the long-term operation of the desulfurization project reliability and stability.
6.1.2 desulfurization process parameters should be based on emission requirements, flue gas characteristics, operating requirements, fuel/raw material quality, absorbent supply, water quality,
Desulfurization by-products comprehensive utilization of other factors, after a comprehensive analysis and optimization.
6.1.3 Ammonia escape concentration hourly mean should be less than 3 mg/m3, ammonia recovery rate should not be less than 98%.
6.1.4 According to the nature of flue gas, operating conditions, the amount of flue gas and the main project on the desulfurization project requirements, the configuration of desulfurization project can choose one
A machine tower, multi-machine one tower, should adopt a machine tower; when using a multi-machine tower should consider adequate maintenance time, operation and isolation measures
Shi.
6.1.5 Absorption process should choose the appropriate absorption cycle, to meet the performance requirements of the premise of energy-saving, mature and reliable process, should be selected
Crystallization tower with the process can also be used outside the tower crystallization.
6.1.6 desulfurization project design desulfurization efficiency should be based on national and local emission standards to determine the requirements.
6.1.7 desulfurization project should set emergency measures for accidental drainage, desulfurization project should be no production of waste water discharge.
6.1.8 desulfurization project should be set according to GB 4053 platform and escalator.
6.2 process
Ammonia flue gas desulfurization process diagram shown in Figure 1. A typical ammonia flue gas desulfurization process described in Appendix A.
Figure 1 ammonia flue gas desulfurization process schematic
6.3 flue gas system
6.3.1 New Project The original flue gas design temperature should be used to provide the design value of the main project. The original design of the expansion project flue gas temperature should be used suction
Close the tower before the measured maximum temperature flue gas system and leave some margin.
6.3.2 When the absorption tower and the main project configuration using the unit system should be considered desulfurization booster fan and induced draft fan combined settings; when a number of principal workers
Cheng together with an absorption tower, desulfurization booster fan should be set. Booster fans should be installed on the inlet side of the absorption tower.
6.3.3 For the flue gas heat exchanger desulfurization project, after heating the net smoke in the chimney inlet exhaust gas temperature should be considered chimney corrosion and environmental protection
begging.
6.3.4 flue gas system flapper doors should have to prevent leakage.
6.3.5 When two or more absorption towers are combined with one flue gas outlet, the outlet of each absorption tower shall be provided with a maintenance isolation baffle door.
6.3.6 desulfurization absorption tower inlet flue gas may contact the area and the desulfurization absorption tower outlet to the stack between the chimney inlet should be used anti-corrosion
Measures.
6.3.7 flue design should meet the strength of the flue, stiffness and vibration within the allowable range, anti-corrosion flue should minimize the number of struts.
6.3.8 Desulfurization flue and connecting equipment should be used to connect the compensator, compensator should be non-metallic material.
6.3.9 desulfurization flue should be installed at a low automatic drainage system. Low flue drain and chimney conde...
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