Sulfur dioxide (SO2) is a common, simple, influential sulfur oxide, chemical formula SO2, colorless gas, one of the main pollutants in the atmosphere. The gas erupts when a volcano erupts, and sulfur dioxide is also produced in many industrial processes. Because coal and oil usually contain sulfur, sulfur dioxide is formed when incinerated. When sulfur dioxide is dissolved in water, sulfurous acid is formed. Using a sulfur dioxide alarm, it is possible to detect if the concentration of sulfur dioxide (SO2) in the air exceeds the standard.
If the sulfurous acid is further oxidized in the presence of PM2.5, sulfuric acid (the main component of acid rain) will be generated quickly and efficiently. This is one of the reasons for concern about the environmental effects of using these fuels as power.
First, what is the damage of sulfur dioxide SO2 to the human body?
(1) In the atmosphere, sulfur dioxide will oxidize into sulfuric acid mist or sulfate aerosol, which is an important precursor to environmental acidification;
(2) The concentration of sulfur dioxide in the atmosphere above 0.5 ppm has a potential impact on the human body;
(3) At 1 to 3 ppm, most people initially feel the impact;
(4) At 400 to 500 ppm, people will present ulcers and pulmonary edema until they die of asphyxia;
(5) Sulfur dioxide has a synergistic effect with soot in the atmosphere. When the concentration of sulfur dioxide in the atmosphere is 0.21 ppm and the soot concentration is greater than 0.3mg/L, the incidence of respiratory diseases can be increased, and the condition of chronic disease patients is rapidly deteriorating, such as the London smog incident, the Maas Valley incident and the donora smoke incident, which are all damaged by this synergistic effect.
Second, the alarm value of sulfur dioxide is PPM_ alarm value _ set value
It is specified in Table B of the "Petrochemical Combustible Gases and Toxic Gas Detection alarm design standards"
1. Sulfur dioxide working touch limit OEL(mg/m3):
(1) Time-weighted average allowable concentration PC-TWA: 5
(2) Short-time touch allowable concentration PC-STEL: 10
2. Directly harmful concentration IDLH (mg/m3): 270
In the "Petrochemical Combustible Gases and Toxic Gas Detection alarm design standards" in the total 5.5 measurement scale and alarm value settings stipulate:
(1) The measurement scale of toxic gases should be 0~300%OEL; When the measurement scale of the existing detector cannot meet the above requirements, the measurement of toxic gases can exceed the circumference of 0 to 30% IDLH; The measurement scale of ambient oxygen can be O~25%VOL;
(2) The first-level alarm setpoint of toxic gases should be less than or equal to 100% OEL, and the secondary alarm setpoint of toxic gases should be less than or equal to 200% OEL. When the measurement scale of the existing detector cannot meet the measurement requirements, the first-level alarm setpoint of toxic gases shall not exceed 5% IDLH, and the second-level alarm setpoint of toxic gases shall not exceed 10% IDLH.
Third, Honey Egg so2 alarm, sulfur dioxide rapid detector
(1) Sulfur dioxide gas detection alarm Quickly detect SO2 in the air, using the principle of electrochemical detection, the measurement scale is 0 ~ 1ppm, 0 ~ 5ppm, 0 ~ 10ppm, 0 ~ 50ppm, 0 ~ 100ppm, 0 ~ 200ppm, 0 ~ 500ppm, 0 ~ 1000ppm, 0 ~ 5000ppm, 0 ~ 10000ppm According to the requirements of the site environment, the range of the sulfur dioxide alarm is selected.
(2) The alarm uses advanced science and technology according to the needs of the market and customers, through repeated experiments and calibrations and multi-channel processing procedures and developed a new generation of high-tech safety and useful products. Sulfur dioxide alarm to the scene to detect and control, when the detected gas concentration exceeds the alarm set value, the instrument announces the sound and light alarm, alarm at the same time to start the external control of fire equipment or other safety protection equipment, and then obstruct or reduce the continuous degree of risk on the scene, to achieve the intention of automatically sweeping away the danger.
(3) Horni egger sulfur dioxide alarm has the characteristics of high detection accuracy, stable function, solid quality, anti-poisoning, and strong anti-interference ability. It can detect and control the sulfur dioxide site for a long time, and can also be directly connected to the microcomputer, PLC or DCS system to complete the communication function, ensuring that the alarm signal is announced at the first time and the hidden dangers are eliminated in time.
(4) Sulfur dioxide gas analyzer is suitable for ambient air, emergency (leak) accident monitoring, work hygiene sites, safety testing of petrochemical enterprises and total volatile organic compound concentration of storage tanks, pipelines, valve leak detection, etc. Equipped with specialized soil punches and sampling tubes for rapid detection of organic volatile gases volatilized in the air by soil.
Sulfur dioxide detector uses high-function imported electrochemical sensors, high precision, accurate measurement, anti-interference, functional stability, with high sensitivity and rapid reaction time, can accurately and timely detect and announce early warning signals, remind operators, and avoid accidents. Sulfur dioxide detector has been widely used in furniture, flooring, wallpaper, coatings, horticulture, interior decoration and renovation, dyes, papermaking, pharmaceuticals, medical, food, antiseptic disinfection, fertilizers, resins, adhesives and pesticides, raw materials, samples, process and feeding plants, waste treatment plants, perm places in the production workshop of biopharmaceuticals, household environmental protection, animal husbandry, greenhouse cultivation, warehousing and logistics, brewing and fermentation, agricultural production and other fields, has become an indispensable protective equipment in industrial safety production.
Shenzhen Horni Egger is specialized in combustible gas alarms, combustible gas detectors, gas detection alarms, safety and environmental protection testing instruments and individual protective equipment development, production and sales of skills enterprises, products are widely used in metallurgy, petroleum, chemical, electric power, mining, municipal, transportation, fire and environmental protection and other categories,