1、 Product Description of Volatile Organic Compounds Online Monitoring System

The S400-T volatile organic compound online monitoring system can be applied to detect places containing TVOC gas concentration. Once the gas concentration exceeds the standard, an alarm will be triggered. It can accurately detect the concentration of TVOC gas and display real-time concentration values and standard signal outputs on site. It has the advantages of stable signal, high sensitivity and accuracy. The explosion-proof wiring method is suitable for various hazardous places.

The S400-T online filtration detection system is suitable for industries and departments such as environmental protection and safety, petrochemicals, and steel smelting. It can perform real-time online monitoring in various complex environments such as petrochemicals, organic chemicals, pharmaceutical manufacturing, industrial painting, machinery and equipment manufacturing, packaging and printing, electronic production, synthetic leather, coatings and paints, clothing processing, furniture manufacturing, adhesives, etc.

The S400-T online filtration detection system adopts the internationally renowned high-precision PID photoionization detection principle, with a built-in suction pump working mode and fast response time; high-precision; Long lifespan; Wide gas detection range; Strong anti-interference ability and other characteristics, with standard output signals such as 4-20mA, RS485/M-BUS, etc., which can be easily integrated and monitored in the system. Two level switch output; On site LCD display, infrared remote control for external adjustment and setting; This sensor can transmit gases in the environment as electrical signals over long distances and transmit the signals to secondary instruments. It can be directly uploaded to a computer or connected to a DCS system. It can also be connected to the local environmental monitoring platform of the environmental protection bureau to achieve continuous remote monitoring of the concentration of volatile organic compounds in the environment.

The S400-T volatile organic compound online monitoring system product has functions such as on-site buzzer indication sound, on-site flashing indication, and real-time display of monitoring site concentration. The entire process is automated and does not require human intervention.

High precision PID photoionization detection principle

◆ Built in suction pump working mode, fast response time

◆ High precision, long lifespan

◆ Detect gas range light

◆ Strong anti-interference ability

Standard signal outputs such as 4-20mA, RS485/M-BUS, etc. can be easily integrated into monitoring systems

◆ Two level switch output

On site LCD display, infrared remote control for external adjustment and setting

◆ Qualified international environmental protection products

System composition:

Composition of volatile organic compound online monitoring system: pretreatment unit, gas analysis unit

Product performance of volatile organic compound online monitoring system:

The S400-T online monitoring system is equipped with lightning protection, anti-static, and multiple wiring options. It is resistant to EMI, EMC electromagnetic interference, and pulse wave surge current impact. The instrument meets the requirements of the national standard, with standard three wire or four wire analog signal output, 2 sets of relay switch output, and standard bus RS485 output (RTU format), which can be directly uploaded to the computer or DCS system. The instrument is equipped with sound and light warning devices as standard. The instrument can be customized for wired transmission, LAN, Internet, wireless transmission, optical fiber, etc. (2km, 5km, unlimited distance), and can store, analyze and print data on the computer.

Wireless transmission methods can be selected from GPRS and other methods, which can be uploaded to cloud servers or online detection platforms of local government departments. The S400-T online monitoring system supports OEM or ODM customization.

Preprocessing process

After pressure adjustment, the monitored gas is filtered through dust to remove particulate impurities, and then cooled by a cooling device to reduce the temperature of the high-temperature gas. Part of the high-temperature gases in the environment contain moisture, which is separated by condensation. The water filtration device includes a drainage valve for a set time and timed drainage to avoid corrosion of metal devices such as sensors by moisture. After treatment, the sample gas flow rate is adjusted and sent to the sensor compartment for concentration analysis.

Pressure adjustment:

Part of the on-site environment has an extremely high pressure environment (101 KPa), and the pressure at the environmental sampling port needs to be adjusted before sampling. This processing unit is an external unit that can be adjusted according to the on-site environment and is suitable for sampling environments with positive or negative pressure.

remove dust:

Dust removal and filtration use vacuum pump filters, which are widely used in industrial vacuum systems to effectively prevent solid particles or dust from being sucked into the vacuum pump or system. Reducing pump wear, improving pump reliability, extending pump life, and effectively protecting components of the vacuum system.

The filter adopts a fully steel structure, which is sturdy and durable, suitable for industrial use. The response and requirements are to use a seamless stretched metal shell, matched with a brazed interface, with high air tightness, large dirt holding space, easy to clean, and easy and fast replacement of the filter element. The import and export are connected by threads, and special pipe openings can be matched according to customer requirements. The filter is sealed with an O-ring and has a maximum vacuum value of less than 1Pa. Standard configuration paper filter element, with a filtration accuracy of 99% (10 micron particles), passing through gas temperatures of -15 ° C to 90 ° C.

Cooling:

The cooling device of this system belongs to a physical cooling condenser and does not have cooling function. The condenser adopts a copper tube design with strong thermal conductivity and hydrophilic fins, effectively enhancing the heat dissipation effect.

Filter water:

This separator adopts an oil-water separator, mainly used to separate moisture and oil in gas, reduce the influence of gas humidity on collection and analysis, and regularly remove moisture through a system controlled solenoid valve.

Gas analysis unit

The filtered clean gas is transported to the sensor area through the suction pump, and the detector monitors the gas concentration in real time, displaying the real-time concentration value on the dot matrix LCD screen. After signal transmission to the external touch LCD display screen. The touch LCD screen also displays the real-time temperature and humidity of the air in the location where the device is located, allowing personnel to observe the environment in real time.

Online monitoring system equipped with gas sampling pump