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Phone
13701307156
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Address
225, 2nd Floor, Qingshang, Qinghe Xiaoying, Haidian District, Beijing
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Beijing Purui Analytical Instrument Co., Ltd
Online monitoring system for volatile organic compounds (VOCs) in industrial waste gas of non methane hydrocarbons
NegotiableUpdate on 02/19
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Overview
In China, VOCs (volatile organic compounds) refer to organic compounds with a saturated vapor pressure greater than 70 Pa at room temperature and a boiling point below 260 ℃ at atmospheric pressure, or all organic compounds with corresponding volatility at a vapor pressure greater than or equal to 10 Pa at 20 ℃. Mainly including various aliphatic and aromatic hydrocarbons, alkenes, oxygen-containing hydrocarbons, and halogenated hydrocarbons, etc
Product Details
details
In our country,VOCs (volatile organic compounds) refer to organic compounds with a saturated vapor pressure greater than 70 Pa at room temperature and a boiling point below 260 ℃ at atmospheric pressure, or all organic compounds with corresponding volatility at a vapor pressure greater than or equal to 10 Pa at 20 ℃. Mainly including various aliphatic and aromatic hydrocarbons, alkenes, oxygen-containing hydrocarbons, and halogenated hydrocarbons, etc
Detailed Introduction
national standard
stem or root of plantsinstrumentMeets the following national standards
| Industry standards |
| Vocs monitoring object |
| integrated emission standard of air pollutants | GB/16927-1996 | Benzene, toluene, xylene, phenols, formaldehyde, acetaldehyde, acrylonitrile, methanol, aniline, chlorobenzene, nitrobenzene, vinyl chloride, non methane total hydrocarbons |
| Emission Standards for Volatile Organic Compounds in Surface Coating (Automotive Manufacturing Industry) | DB32/2862-2016 | Benzene, toluene, xylene, benzene derivatives TVOCs |
| Technical requirements and detection methods for continuous monitoring system of non methane total hydrocarbons in fixed pollution source exhaust gas | HJ/1013-2018 | Non methane total hydrocarbons |
| Technical requirements and detection scheme for continuous monitoring system of volatile organic compounds in ambient air by gas chromatography | HJ/1010-2018 | Volatile Organic Compounds |
| Indoor decoration materials - Formaldehyde emission limit in artificial boards and their products | GB 18580-2017 | formaldehyde |
| Test methods for physical and chemical properties of artificial boards and decorative artificial boards | GB/T 17657-2013 | formaldehyde |
| Sampling and determination methods for volatile organic compounds and aldehydes and ketones in vehicles | HJ/T 400-2007 | Organic compounds, acid ketones |
| Technical requirements and detection methods for portable detectors of total hydrocarbons, methane and non methane total hydrocarbons in ambient air and exhaust gas | HJ/ 1012-2018 | Total hydrocarbons, methane, non methane total hydrocarbons |
TECHNICAL INDEX
| project | HJ1013-2018 Technical Requirements and Testing Methods for Continuous Monitoring System of Non Methane Total Hydrocarbons in Fixed Pollution Source Waste Gas | HJ1012-2018 Technical Requirements and Testing Methods for Portable Monitoring Instruments for Total Hydrocarbons, Methane, and Non Methane in Environmental Air and Waste Gas | HJ1010-2018 Technical Requirements and Detection Methods for Continuous Monitoring System of Volatile Organic Compounds in Environmental Air by Gas Chromatography | ||
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| Fixed pollution source exhaust gas NMHC-CEMS laboratory testing project | Fixed pollution source exhaust gas NMHC-CEMS on-site testing project | Type I instrument | Type II instrument | / |
| Analysis cycle (system analysis cycle) | ≤2 min | ≤3min | ≤2 min | / | |
| Instrument detection limit (system detection limit) | ≤0.8 mg/m3 | / | ≤0.13 μmol/mol | ≤1.49μmol/mol | ≤0.1 nmol/mol |
| Repeatability (relative standard deviation) | ≤2% | / | ≤ 2.0% (methane) | / | |
| linearity error
| ±2%F.S. | / | Not exceeding ± 2.0% F.S. (methane) | / | |
| 24-hour drift | ±3%F.S. | Not exceeding ± 3% F.S | / | Not exceeding ± 1nmol/mol | |
| The impact of environmental temperature changes | ±5%F.S. | / | Not exceeding ± 5.0% F.S | / | |
| The impact of changes in injection flow rate | ±2%F.S. | / | / | Not exceeding ± 2.0% F.S | / |
| The impact of changes in power supply voltage | ±2%F.S. | / | The variation of power supply voltage is ± 10%, and the variation of all measured components of the instrument shall not exceed ± 2.0% F.S. | / | |
| The influence of oxygen | ±2%F.S. | / | Not exceeding ± 5.0% F.S | / | |
| Conversion efficiency | Not less than 95% | / | ≥95% | / | |
| parallelism | Not exceeding 5% | / | ≤5.0% | ≤20% | |
Technical performance:
| control mode | Embedded industrial control computer |
| Drift/repeatability | ±1%~±5% |
| Sample gas flow rate | 50ml/min |
| Sample gas pressure | 0.1MPa |
| Sample gas interface | 1/4 "Swagelok SS |
| Carrier gas type | N2/H2/Ar/He |
| Carrier gas interface | 1/8 "Swagelok SS |
| carrier gas flow | 150ml/min |
| Carrier gas pressure | 0.4 MPa |
| Display | LED |
| Power supply | AC220V，50~60Hz |
| Power | 400W |
| Weight | 20Kg |
| Size | Standard 5U rack mounted chassis |
| 482mm（W）×222mm（H）×400mm（D） | |
| Flow control of carrier gas and sample gas | Electronic monitoring |
| communication interface | RS-232/485 |
| Communication protocol | modbus |
Overall layout
Update time: August 26, 2020 11:44:32
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