HJ 193-2013_English: PDF (HJ193-2013)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| HJ 193-2013 | English | 729 |
Add to Cart
|
5 days [Need to translate]
|
Technical specifications for installation and acceptance of ambient air quality continuous automated monitoring system for SO2, NO2, O3 and CO
| Valid |
HJ 193-2013
|
| HJ/T 193-2005 | English | RFQ |
ASK
|
9 days [Need to translate]
|
Automated methods for ambient air quality monitoring
| Obsolete |
HJ/T 193-2005
|
Standards related to: HJ 193-2013
| Standard ID | HJ 193-2013 (HJ193-2013) | | Description (Translated English) | Technical specifications for installation and acceptance of ambient air quality continuous automated monitoring system for SO2, NO2, O3 and CO | | Sector / Industry | Environmental Protection Industry Standard | | Classification of Chinese Standard | Z15 | | Classification of International Standard | 13.040.20 | | Word Count Estimation | 28,262 | | Older Standard (superseded by this standard) | HJ/T 193-2005 | | Quoted Standard | GB 3095-2012; GB 50168; HJ/T 212; YD 5098 | | Drafting Organization | China Environmental Monitoring Station | | Administrative Organization | Department of Environmental Protection | | Regulation (derived from) | Department of Environmental Protection Notice No. 48 of 2013 | | Summary | This standard specifies: ambient air gaseous pollutants (SO2, NO2, O3, CO) continuous automatic monitoring system installation, testing, commissioning and acceptance technical requirements. This standard applies to the ambient air of gaseous pollutants (S |
HJ 193-2013
Technical specifications for installation and acceptance of ambient air quality continuous automated monitoring system for SO2, NO2, O3 and CO
National Environmental Protection Standard of the People's Republic
Partially replacing HJ/T 193-2005
Ambient airborne gaseous pollutants (SO2, NO2, O3, CO) continuously
Dynamic monitoring system installation and acceptance technical specifications
Technical Specifications for Installation and Acceptance of Ambient air
Quality Continuous Automated Monitoring System for SO2, NO2, O3 and
CO
Released on.2013-07-30
2013-08-01 implementation
Ministry of Environmental Protection released
Content
Foreword. II
1 Scope 1
2 Normative references 1
3 Terms and Definitions..1
4 system composition and principle 2
5 installation ..4
6 debugging..8
7 trial run..10
8 Acceptance 10
Appendix A (Normative) Continuous Automatic Monitoring System for Ambient Air Gaseous Contaminants (SO2, NO2, O3 and CO)
Debug test item 13
Appendix B (informative) Calculation method of equivalent concentration.14
Appendix C (informative) Monitoring system installation and commissioning report 15
Appendix D (informative) Monitoring system test run report.20
Appendix E (informative) Monitoring System Acceptance Report..22
Foreword
Implementing the "Environmental Protection Law of the People's Republic of China"
Ambient Air Quality Standard (GB 3095-2012), standardizing ambient air gaseous pollutants (SO2, NO2, O3, CO)
This standard is established for the installation and acceptance of automatic monitoring systems (hereinafter referred to as monitoring systems).
This standard specifies the composition, installation, commissioning, commissioning and acceptance of the continuous monitoring system for gaseous pollutants in ambient air.
Technical requirements.
This standard is a revision of the contents of the Technical Specifications for Automatic Monitoring of Ambient Air Quality (HJ/T 193-2005).
This standard was first published in.2005 and this is the first revision. The main contents of the revision are as follows.
-- Defining the installation and acceptance techniques for continuous automatic monitoring systems for gaseous pollutants (SO2, NO2, O3, CO)
begging.
Since the implementation of this standard, the Technical Specifications for Automatic Monitoring of Ambient Air Quality (HJ/T 193-2005) related to gaseous pollution
The contents of the installation and acceptance of continuous automatic monitoring system for dyes (SO2, NO2, O3, CO) are abolished.
Appendix A of this standard is a normative appendix, Appendix B, Appendix C, Appendix D, and Appendix E are informative appendices.
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 Monitoring Center.
This standard was approved by the Ministry of Environmental Protection on July 30,.2013.
This standard has been implemented since August 1,.2013.
This standard is explained by the Ministry of Environmental Protection.
Continuous automatic monitoring of ambient air gaseous pollutants (SO2, NO2, O3, CO)
System installation acceptance specification
1 Scope of application
This standard specifies the installation of continuous automatic monitoring system for ambient air gaseous pollutants (SO2, NO2, O3, CO).
Technical requirements for commissioning, commissioning and acceptance.
This standard applies to the installation of continuous automatic monitoring systems for ambient air gaseous pollutants (SO2, NO2, O3, CO).
Acceptance activities.
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 3095-2012 Ambient Air Quality Standard
GB 50168 Electrical installation engineering cable line construction and acceptance specifications
HJ/T 212 pollution source online automatic monitoring (monitoring) system data transmission standard
YD5098 Communication Bureau (Station) Lightning Protection and Grounding Engineering Design Specification
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Ambient air quality continuous monitoring
The process of continuous sample collection, processing and analysis of ambient air quality using continuous monitoring instruments at monitoring points.
3.2
Point analyzers
Refers to a monitoring and analysis instrument that collects ambient air through a sampling system at a fixed point and determines the concentration of air pollutants.
3.3
Open path analyzers
Measuring the average air pollutant on the optical path of the beam by using a method of emitting a light beam from the transmitting end through an open environment to a receiving end
Concentration of the instrument.
3.4
Zero drift
The instrument's reading and zero input after running the instrument at the specified time without maintenance, maintenance or adjustment.
The deviation between.
3.5
Range drift
Under the premise of not being repaired, maintained or adjusted, after the instrument is operated according to the specified time, the readings of the instrument and the known parameters
The deviation between the values.
3.6
Unattended operation
Under the premise of no manual maintenance and calibration, the long-term drift (≥7d) meets the time interval required by the indicator.
3.7
Standard state
The temperature is 273 K and the pressure is 101.325 kPa. The concentration of pollutants in this standard is under standard conditions.
concentration.
3.8
Ppm parts per million
One millionth of a volume concentration.
3.9
Ppb parts per billion
One billionth of a volume concentration.
3.10
Optical path
The length of the path through which the monitoring beam of the open path analysis instrument passes from the transmitting end of the light source to the receiving end.
3.11
Zero optical path
The open optical path analysis instrument is in a calibrated state, and the optical path from the light emitting end to the receiving end of the light is much smaller than the actual measurement.
The optical path of time is called zero path length.
3.12
Equivalent concentration
Place a calibration cell in the measuring path of the instrument, and pass the standard gas. According to the ratio of the measuring path length to the length of the calibration cell,
The quasi-gas concentration value is converted to the actual calibration concentration value, which is the equivalent concentration. All of this standard applies to open pathlength meters
The standard gas concentration values of the method for detecting the technical indicators are all equivalent concentration values.
4 system composition and principle
The monitoring system is divided into a point continuous monitoring system and an open optical path continuous monitoring system. The monitoring system analysis method is shown in Table 1.
Table 1 Analytical methods recommended by the analytical instrument
Monitoring project point analysis instrument open optical path analysis instrument
NO2 chemiluminescence differential absorption spectroscopy
SO2 ultraviolet fluorescence differential absorption spectroscopy
O3 ultraviolet absorption differential absorption spectroscopy
CO non-dispersive infrared absorption method, gas filter related infrared absorption method /
4.1 point continuous monitoring system
4.1.1 System Composition
The monitoring system consists of sampling devices, calibration equipment, analytical instruments, data acquisition and transmission equipment, as shown in Figure 1.
Figure 1 Schematic diagram of the point continuous monitoring system
4.1.2 Sampling device
Multiple point analytical instruments can share a multi-branch sampling device for sample collection. The material and installation of the sampling device should be
Does not affect instrument measurements.
4.1.3 Calibration equipment
The calibration equipment consists mainly of a zero gas generator and a multi-gas dynamic calibrator. Calibration equipment for calibration of analytical instruments
quasi.
4.1.4 Analytical instruments
The analytical instrument is used to measure the collected ambient air gaseous pollutant samples.
4.1.5 Data Acquisition and Transmission Equipment
Data acquisition and transmission equipment for collecting, processing and storing monitoring data, and capable of transmitting and monitoring according to central computer commands
Data and device operational status information.
4.2 Open optical path continuous monitoring system
4.2.1 System composition
The monitoring system consists of an open measuring optical path, a calibration unit, an analytical instrument, a data transmission and acquisition device, etc.
Figure 2 shows.
Figure 2 Schematic diagram of the composition of the open optical path continuous monitoring system
4.2.2 Open measurement optical path
The path from the transmitting end of the light source to the receiving end.
4.2.3 Calibration unit
Using the principle of equivalent concentration, by arranging calibration pools of different lengths on the measuring optical path, equivalent to different concentrations of standards
Gas to complete the calibration work. See Appendix B for the equivalent concentration calculation method.
The calibration unit structure is shown in Figure 3.
Figure 3 Schematic diagram of the calibration unit
4.2.4 Analytical instruments
Analytical instruments are used to measure ambient airborne gaseous contaminants on open light paths.
4.2.5 Data Acquisition and Transmission Equipment
Data acquisition and transmission equipment for collecting, processing and storing monitoring data, and capable of transmitting and monitoring according to central computer commands
Data and device operational status information.
5 installation
5.1 Monitoring points
5.1.1 The location of the monitoring points should be determined first and carefully, with intermittent monitoring of the air in the area.
After the pollution situation has a rough concept, the location of the monitoring point is selected, and the location should meet the requirements of relevant technical specifications. Monitoring point
Once the position is determined, it should be used for a long time, and should not be easily changed to ensure the continuity and comparability of the monitoring data.
5.1.2 There should be no tall buildings, trees or other obstacles around the monitoring points to block the circulation of ambient air. From monitoring
The horizontal distance from the sampling port to the highest obstacle nearby, at least twice the vertical distance of the obstacle above the sampling port
the above.
5.1.3 The construction around the monitoring point should be relatively stable, and should be selected as far as possible in the area where the planning and construction is completed, which is quite long.
No new construction sites can be found in time.
5.1.4 The monitoring point should be located where the relative safety and fire prevention measures are guaranteed.
5.1.5 There should be no strong electromagnetic interference near the monitoring point, there is a stable and reliable power supply around, and the communication line is convenient for installation and inspection.
repair. The open path monitoring system monitoring point should be away from the vibration source.
5.1.6 Appropriate vehicle access should be provided around the monitoring point to meet the equipment transportation and installation and maintenance needs.
5.1.7 The specific location requirements of different functional monitoring points shall be determined according to the relevant technical specifications according to the monitoring objectives.
5.2 Monitoring station and auxiliary facilities
5.2.1 General requirements
5.2.1.1 The roof of the new monitoring station should be a flat structure with a slope of no more than 10°. The roof should be fenced and the fence should be high.
The degree is not less than 1.2m, and the sampling manifold mounting hole is reserved. The indoor use area of the station should be no less than 15 m2. Monitoring station should do
Dedicated to the special room.
5.2.1.2 The monitoring station should be equipped with a Z-shaped ladder or a rotary ladder leading to the roof. The load-bearing requirements of the roof are greater than or equal to 250kg/m2.
5.2.1.3 The height of the floor to ceiling of the station room shall be not less than 2.5 m, and the height from the roof platform shall not exceed 5 m.
5.2.1.4 The station building should be waterproof, moisture-proof, heat-insulating and heat-insulating measures. The ground in the general station should be off the ground (or building roof).
There is a distance of 25cm or more.
5.2.1.5 The station building shall have lightning protection and electromagnetic interference prevention facilities. The selection and installation of lightning protection grounding device shall refer to YD 5098.
Related requirements.
5.2.1.6 The station building is a windowless or double-layered sealed window structure. When conditions permit, a buffer room may be provided between the door and the instrument room to maintain
The temperature and humidity in the station are constant to prevent dust and dirt from being carried into the station.
5.2.1.7 Sampling device The position of the exhaust fan exhaust port and the monitoring instrument exhaust port should be set at the wall near the lower part of the station building.
Above, the distance from the exhaust port to the ground in the station should be more than 20cm.
5.2.1.8 In the station building using the open optical path monitoring system, the light source transmitting end and receiving end of the open optical path monitoring system shall be fixed at
Install on the base. The pedestal should be constructed of solid brick platform structure or concrete cement pile structure, which is not affected by environmental changes.
On the main load-bearing concrete structure of the building, the height from the ground (0.6~1.2) m, the length and width dimensions should be higher than the transmitting end and receiving
The four ends of the end base are more than 15cm wide.
5.2.1.9 In the station building using the open optical path monitoring system, a circular through hole should be reserved on the wall surface, and the diameter of the through hole should be larger than the light source emission.
The outer diameter of the end.
5.2.1.10 When building a station on the roof of an existing building, the bearing capacity of the building should be verified first.
5.2.1.11 If the monitoring station is constructed with color steel sandwich panels, it shall comply with the requirements for the design and construction of relevant temporary buildings (structures).
5.2.1.12 The monitoring station should be set up to avoid impact on the safe production and environment of the enterprise.
5.2.1.13 Environmental conditions in the station.
(1) Temperature. (15 ~ 35) ° C;
(2) Relative humidity. ≤ 85%;
(3) Atmospheric pressure. (80 to 106) kPa.
Note 1. Under special environmental conditions such as low temperature and low pressure, the configuration of instruments and equipment should meet the requirements of local environmental conditions.
5.2.2 Power distribution requirements
5.2.2.1 The power supply system of the station building shall be equipped with a power supply overvoltage and overload protection device, and the power supply voltage fluctuation shall not exceed AC (220±22).
V, the frequency fluctuation does not exceed (50 ± 1) Hz.
5.2.2.2 The station building shall be powered by three-phase five-wire power supply. The distribution room shall be equipped with a distribution box, and the lead wires connected to the room in the distribution box shall be separately installed.
Three single-phase 15A air switches are used as the main switch for three-phase power, split-phase.
5.2.2.3 The installation of the lighting of the station room is to ensure that the operator has sufficient brightness when working, and the switch position should be convenient to use.
5.2.2.4 The station building shall be made in accordance with the requirements in the electrical code, for the grounding protection of the cabinet, the instrument casing, etc.
The grounding resistance should be less than 4Ω.
5.2.2.5 The wiring of the station building requires beautiful wiring, and the wiring should be installed with cable troughs.
5.2.3 Auxiliary facilities
5.2.3.1 Air conditioning
(1) The air outlet of the air-conditioning unit installed in the station room cannot face the instrument and the sampling manifold.
(2) The air conditioner should have a self-starting function.
5.2.3.2 Other supporting facilities
(1) The station building should be equipped with automatic fire extinguishing devices.
(2) The station room should be equipped with an exhaust fan, and the exhaust fan is required to have dust-proof shutters.
5.2.4 Schematic diagram of the station
The schematic diagram of the point-type continuous monitoring system station is shown in Figure 4. The schematic diagram of the open-path continuous monitoring system station is shown in Figure 5.
Figure 4 Schematic diagram of point-type continuous monitoring system station
Figure 5 Schematic diagram of the station of the open optical path continuous monitoring system
5.3 Point type continuous monitoring system sampling device installation requirements
(1) The sampling manifold should be installed vertically.
(2) The sampling manifold and the roof flange connection are sealed and waterproof.
(3) The connecting parts of each branch of the sampling main pipe are sealed and airtight.
(4) The connection between the sampling manifold support member and the roof and sampling manifold should be firm and reliable.
(5) The ambient air flow within the 270° capture space around the sampling port shall be unaffected.
(6) The connection between the heater and the sampling manifold should be firm, and the heating temperature is generally controlled at (30 ~ 50) °C.
(7) The sampling manifold is well grounded and the grounding resistance should be less than 4Ω.
(8) The height of the sampling port from the ground should be in the range of (3 ~ 15) m.
(9) Under the premise of ensuring the spatial representation of the monitoring point, if the selected point is within the radius (300~500) m
The average height of the building is above 20m, and it cannot be set according to the height requirement of the item (8) in 5.3.
The degree can be selected within the range of (15 ~ 25) m.
(10) The distance between the sampling port and the surface of the building, such as the roof of the building, should be greater than 1 m. If the surface of the support has a physical circumference
Column, the sampling port should be at least 0.5m higher than the physical fence.
5.4 Open optical path continuous monitoring system optical path
(1) The height of the monitoring beam from the ground should be in the range of (3 to 15) m.
(2) Under the premise of ensuring the spatial representation of the monitoring points, if the selected point is within the radius (300~500) m
The average height of the building is above 20m, and the height of the monitoring beam from the ground can be selected within the range of (15~25)m.
(3) When the monitoring beam can pass completely, the monitoring beam is allowed to pass from a daily average vehicle flow of less than 10,000 vehicles.
On the road, small pollution sources that have little effect on the monitoring results and a small number of trees or buildings that do not meet the separation distance requirements
The total distance passed through cannot exceed 10% of the total optical path of the monitoring beam.
5.5 Analytical Instrument Installation Requirements
5.5.1 General requirements
(1) The nameplate of the product should be marked with the name, model, production unit, factory number and date of manufacture.
(2) The components of the analytical instrument should be connected reliably, the surface has no obvious defects, and the operation buttons are flexible and accurate.
(3) The scale and number of each display part of the instrument are clear and the color is firm. There should be no defects affecting the reading.
(4) With digital signal communication function.
(5) The insulation resistance between the power supply lead-in of the analytical instrument and the casing should be not less than 20 MΩ.
5.5.2 Point analysis instrument
(1) Analytical instruments should be installed horizontally in the cabinet or on the platform, and necessary anti-shock measures.
(2) The pipeline connecting the analytical instrument and the branch pipe joint should be selected without chemical reaction with the monitored pollutants and not released.
The material of the disturbing material; the length should not exceed 3m, and the air outlet of the air conditioner should be prevented from directly blowing to the sampling manifold and branch pipe.
(3) In order to prevent particles from entering the analytical instrument, a hole diameter of not more than 5 μm should be installed between the analytical instrument and the branch pipe.
Fluoroethylene filter.
(4) In order to prevent the influence of condensation water flow and pipe wall airflow fluctuation, the pipeline connecting the analytical instrument and the branch pipe joint is connected to the main pipe.
It should extend to the position where the main pipe is close to the center.
(5) The exhaust port of the analytical instrument should be connected to the total exhaust pipe of the station building through the pipeline.
(6) Cables and pipes and the ends of cables and pipes are clearly marked. Cable line construction should also meet GB 50168
Related requirements.
5.5.3 Open optical path analysis instrument
(1) The analytical instrument should be installed in the cabinet or on the platform to ensure that there is more than 0.8m of operation and maintenance space behind the instrument.
(2) The light source transmitting and receiving device of the analytical instrument should be sealed with the wall of the station.
(3) When the optical path of the analytical instrument is greater than or equal to.200m, the optical path error shall not exceed ±3m; when the optical path is less than.200m, the optical path is
The error should not exceed ±1.5%.
(4) The transmitting end and the receiving end (reflecting end) of the light source should be on the same straight line, and the pitch angle with the horizontal plane should not exceed 15°.
(5) The receiving end (reflecting end) of the light source should be installed in the dark, and attention should be avoided to install it in the residential area or near the window.
So as not to cause stray light interference.
(6) The transmitting end and receiving end (reflecting end) of the light source should be fixed on the base after the optical path is debugged.
(7) Cables and pipes and the ends of cables and pipes are clearly marked. Cable line construction should also meet GB 50168
Related requirements.
5.6 Data Acquisition and Transmission Equipment
(1) Equipment should be wired or wireless.
(2) The equipment should be installed in the cabinet or on the platform to ensure the connection between the equipment and the cabinet or platform is firm and reliable.
(3) The equipment should be able to properly record, store, and display the collected data and status.
6 debugging
After the monitoring system is installed on site and is in normal operation, it must be debugged before acceptance. After the completion of the monitoring, the monitoring system performance refers to
The standard shall comply with the requirements of the Appendix A for the detection of the test. Debug detection can be made by the system manufacturer, supplier, user, or delegated
The department with the ability to detect is responsible.
6.1 General requirements for commissioning testing
(1) After the system is installed and commissioned on site, the monitoring system is put into trial operation.
(2) After the monitoring system is continuously operated for 168 hours, the debugging test is performed.
(3) If the debugging detection is interrupted due to system failure, power failure, etc., debugging test needs to be performed again.
(4) The point monitoring system is the same as the open optical path monitoring system debugging test item. Open optical path instrument should be at zero when testing
Optical path status.
(5) Installation and commissioning report should be prepared after commissioning and testing. See Appendix C for the report format.
6.2 Debugging detection indicators and detection methods
6.2.1 Zero noise
After the monitor......
......
|