Fixed pollution source VOC alarm system-Global supplier

2nd Floor, West Gate, Building 33, Jucheng Industrial Park, Lane 3999, Xiupu Road, Pudong New Area, Shanghai (near Shenjiang Road)

Fixed pollution source VOC alarm system

System Overview:

The VOC alarm system for fixed pollution sources is designed based on standards such as "Technical Requirements for Photoionization Detector (PID) Method for Continuous Automatic Monitoring System of Volatile Organic Compound Emissions from Fixed Pollution Sources" (DB 44/T 1947-2016) and "Online Monitoring of Volatile Gases from Industrial Pollution Sources in Hebei Province".

System workflow:

The sampling preprocessing system consists of a sampling probe, a water gas separator, a filter, a sampling pump, and a gas controller.

The process of the sampling preprocessing system is shown in the following figure. Gas is extracted from the exhaust pipe by the sampling pump, transported through the sampling probe and sampling tube, separated and filtered by water and gas, and then enters the PID gas analyzer. The gas analyzer integrates multiple high-performance microprocessors to measure the concentration of VOCs gas. After the entire measurement is completed, exhaust the exhaust gas through the exhaust hole.

Technical Specifications:

Gas detection	Volatile Organic Gases (VOCs)
Detection Principle	PID principle, sampling method, long-term continuous operation.
measurement range	0-200, 2000, 10000ppm optional
Resolution	0.025ppm（0～200ppm）； 0.05ppm（0～2000ppm）； 0.1ppm（10000ppm）
repetitiveness	≤± 3% (calculated as isobutene)
zero drift	≤ 2 mg/m3 (calculated as isobutene)
response time	≤ 20 seconds (T90)
Determination of lower limit	≤ 5 mg/m3
Actual gas sample comparison error	≤ 50% （VOCs≤15 mg/m 3 ）
	≤ 35% （VOCs＞15 mg/m 3 ）
recovery time	≤ 10 seconds
data collection	tablet	2-channel RS232/RS485 communication interface, Windows XP operating system
	system software	Online monitoring and management software for pollution sources
	output	RS232/RS485 signal output, Ethernet output, alarm port output
working power supply	220V AC/50Hz 0.5KW
Working temperature and humidity	5～40℃、≤85%RH