Odor monitoring device

There are usually three ways for odor monitoring devices to detect odors. The first method is to use artificial olfaction. The second method is to use some equipment, such as chromatography, mass spectrometry, spectrometer, chromatography-mass spectrometry, etc. The third method is to use instruments that integrate multiple sensors.

There are usually three ways for odor monitoring devices to detect odors. The first method is to use artificial olfaction. The second method is to use some equipment, such as chromatography, mass spectrometry, spectrometer, chromatography-mass spectrometry, etc. The third method is to use instruments that integrate multiple sensors. For requirements such as large-scale deployment, 24-hour online monitoring, and easy maintenance, it is obvious that odor monitoring devices based on sensor principles are more suitable for continuous odor monitoring.

1、 Introduction to Odor Monitoring System

TH-CJ04 Odor Online Monitoring System is a odor concentration online monitoring system independently developed and produced by Shandong Tianhe Environmental Technology, which has years of experience in gas detection and atmospheric environment monitoring. It is designed specifically for places that are prone to odor generation, in accordance with the "Emission Standards for Odor Pollutants (GB14554-1993)" and the "Technical Specifications for Odor Pollution Environmental Monitoring (HJ905-2017)". It is commonly known as the odor electronic nose;

The concept of odor in odor monitoring devices:

Odor refers to any gas substance that stimulates the sense of smell and causes discomfort and damage to the living environment; There are many types of them, and so far there are more than 4000 that can be felt by human smell, among which there are dozens that pose a greater threat to human health;

Scenarios where foul odors appear:

Science and technology parks, chemical parks, landfills, garbage treatment stations, garbage power plants, garbage incineration sites, chemical plants, breeding farms, sewage treatment plants, pharmaceutical factories, breweries, energy and power enterprises, textile factories, urban and rural residential areas, and research institutes and universities;

Alias of Odor Online Monitoring System:

Electronic nose, odor gas detector, odor gas online monitoring device, odor online monitoring system, odor electronic nose, odor concentration online monitoring system, odor electronic nose concentration monitoring system, filter type odor detection system, odor OU monitoring system, odor concentration online monitoring system, odor electronic nose monitoring system, odor concentration electronic nose system, OU value online monitoring system, odor detection analyzer;

2、 Product Introduction of Odor Online Monitoring System

The TH-CJ04 odor online monitoring system consists of a power supply system, a gas collection system, a sensor monitoring system, a data control system, display, and transmission;

The TH-CJ04 odor online monitoring system adopts compensation and anti-interference algorithms. The system uses array sensors to detect three major categories (S series, N series, VOCs series) according to national standards. The monitoring parameters mainly include ammonia, hydrogen sulfide, trimethylamine, carbon disulfide, methyl mercaptan, styrene, methyl sulfide, dimethyl, and eight gas substances with single gas and composite odor concentration OU values, totaling nine parameters.

Routine four parameters of odor monitoring instrument: NH3, H2S, TVOC, OU value;

Power Supply System: Municipal Power Supply Conversion System

Gas collection system: By using a sampling pump and a gas collection rod (including a flow control unit), air from the environment is drawn into a gas collection chamber (sniffing bag) for detection and analysis;

Monitoring system: gas sensor detection module, meteorological parameter detection module, responsible for identifying and analyzing different odor components in odor samples; Sensor array design, integrated multi gas cross interference algorithm, temperature and humidity compensation algorithm control system: The control unit collects detection data from each sensor and analyzes and calculates it using a big data model to obtain accurate data;

Display system: Present the collected and processed monitoring factor data in a simple and understandable way; A 7-inch high-definition color screen is integrated on the chassis, which can be equipped with an external LED display screen or a large screen control center;

Transmission system: The transmission unit uses DTU or data acquisition instrument (2-channel 232 interface, 3-channel 485 interface, 2-channel Ethernet interface, optional other interfaces), transmission protocol J212; The data can be displayed on Anpar Smart Environmental Protection Supervision Platform, demand side platform, environmental protection bureau platform, etc;

The odor monitoring instrument based on sensor principle has many characteristics such as small size, multiple parameters, low cost, fast analysis speed, real-time response, simple installation, and easy maintenance. The principle of sensors usually involves semiconductor, electrochemical, PID and other technologies. After configuring the protective shell, it can withstand various harsh weather conditions such as strong winds and heavy rain, and can be used in various environments.

Odor monitoring devices can usually be equipped with intelligent monitoring systems. By using grid layout, concentric circle layout, two-sided layout, fan-shaped layout and other methods within the area, it is easy to query the emission status and trend changes of odors, peculiar smells, etc. in the area through the system. Comprehensive monitoring of odor pollution from points, lines, and surfaces. And it can trace and determine the source of pollution based on changes in wind speed, wind direction, pressure, and odor concentration gradient within the area, reducing the difficulty of investigation. In addition, it can also promptly detect sudden odor pollution problems, leaks, illegal discharges, and other situations, achieving emergency monitoring, warning, management, and other functions.

The emergence of odor monitoring devices can be said to provide an effective and achievable way for odor emission management. Although odor monitoring devices based on sensor principles can only roughly estimate the content of odorous gases, this does not affect their widespread application in factory monitoring, park monitoring, boundary monitoring, and surrounding monitoring. Only by roughly understanding the overall situation of odor emissions in the area can we better concentrate our efforts on addressing individual issues one by one.