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Ozone sensor helps ozone pollution control
The 'Atmospheric Ozone Tracing and Control' science and technology project of the Chinese Academy of Sciences (the 'Ozone' project for short) was officially launched on the 14th, and will focus on solving key problems such as how ozone comes from and how to control it.
The above is the first paragraph of the notice issued by the Chinese Academy of Sciences, which indicates that environmental governance will be tilted towards the atmospheric compound pollution control represented by ozone.
As the 'Defense of the Blue Sky' enters its final year, in the past three years, my country has achieved remarkable results in the treatment of traditional soot-type pollution, greatly improved environmental quality, and obvious pollution levels. Improve. But at the same time, the atmospheric compound pollution represented by ozone has become increasingly prominent, and the research and monitoring of ozone pollution has become imminent. Here, we put forward two questions about ozone pollution, and analyze how to deal with ozone pollution through the questions.
What is ozone? How should ozone pollution be prevented?
We all know about ozone, but the ozone in our impression has always been the 'protector' of living beings. Life on earth is protected from radiation damage. Why is such ozone listed as a key pollutant in the country?
About this question, it is actually the reason why we have one-sided understanding of ozone. There is a sentence that describes it very appropriately: 'The above is a Buddha, and the next is a demon.' Ozone can block ultraviolet rays in the stratosphere and protect lives. However, the high concentration of ozone that accumulates near the ground will reduce the visibility of the atmosphere and cause the greenhouse effect for the environment; for the human body, the high concentration of ozone will irritate the eyes, reduce visual sensitivity and vision, and also Causes lung dysfunction. Long-term inhalation of ozone can cause tissue hypoxia, cause organ failure, and severe inhalation can even cause death. Therefore, it is urgent to prevent ground-level ozone pollution.
How to treat ozone, there is no complete solution at present. At present, we still focus on ventilation to prevent ozone pollution, and use ozone monitoring equipment to prevent it in advance. Although there is no perfect solution to the problem of ozone pollution, we have more mature monitoring equipment, such as fixed-installed ozone sensors and portable ozone monitors. These two monitoring equipment are relatively common ozone monitoring instruments on the market. Effectively monitor the ozone concentration, upload the alarm data when the limit is exceeded, and remind the manager to deal with it as soon as possible.
The ozone sensor adopts the electrochemical detection principle. It measures the current generated when the target gas enters the sensor and the chemical reaction occurs at the sensing electrode, so as to achieve the purpose of detecting its concentration. The sensor reacts quickly and sensitively. It can accurately detect the ozone concentration.
The ozone sensor shell adopts a wall-mounted waterproof shell, which is easy to install, and the protection level reaches IP65; the equipment adopts an imported high-sensitivity gas detection probe and a high-performance signal acquisition circuit, which can accurately measure the ppm ozone concentration. The signal is stable and the accuracy is high.
The ozone sensor adopts 485 communication, standard ModBus-RTU communication protocol, communication address and baud rate can be set, and the longest communication distance is 2000 meters. The equipment has 10-30V wide voltage power supply, and the enclosure has a high degree of protection, which can adapt to various harsh conditions on site.
The ozone gas detector is an intrinsically safe gas detector developed for the environment containing ozone gas. The detector uses natural diffusion to detect gas, adopts an electrochemical gas sensor, and has Excellent sensitivity and excellent repeatability.
The ozone detector can store up to 100,000 test data, and the historical data can be checked at any time with the software. High-definition color screen design, easy to view the gas status, can set high and low alarm values. Shortcut keys to quickly turn on and off the sound alarm and storage mode. Hand-held design, large-capacity battery is easy to use. In the always-on mode, the device can last for at least 8 hours. When the detected gas is higher than the specified concentration, there will be three alarm methods: sound, light, and vibration.
In the next step, the country will focus on the treatment of atmospheric compound pollution represented by ozone, and the preparation of the '14th Five-Year Plan' special plan for air pollution prevention and control that will be launched has also specifically targeted the two aspects of ozone. This precursor is designed with emission reduction targets. Promote high-quality development on the one hand, and pay more attention to ecological construction on the other hand, with the participation of all people, and joint action. Our blue sky will definitely be fresher and cleaner.
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