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Frequent reports of oil fume pollution Online oil fume monitoring system helps to monitor catering oil fume pollution
According to a report from the Ministry of Ecology and Environment, in 2019, air pollution reports accounted for 50.8% of the national air pollution reports, of which oil fume reports accounted for 15.3%, ranking behind malodors, dust and industrial waste gas. In July 2020, air pollution reports accounted for 58.4% of the country. From the perspective of industry type, the proportion of reports on accommodation, catering and entertainment was 21.6%, an increase of 1.1 percentage points from the previous month. In addition, from the perspective of the type of pollution reported by the region, there is also a clear bias. For example, in Shanghai, oil fume pollution is the main issue in air pollution reports. In July 2019, Beijing’s complaints about food and beverage pollution accounted for 28.1% of air pollution reports. From any point of view, oil fume pollution is indeed one of the problems closely related to life, and it is also the 'prominent contradiction reflected by the masses' that our country attaches great importance to. The hazards of oil fume pollution are not limited to the 'choking taste' that people intuitively feel. Food fume pollution is large in quantity, wide in area, and has low-altitude diffusion characteristics. It contains inhalable particulate matter (high PM2.5 content), which is one of the sources of volatile organic compounds (VOCs), and is accompanied by polycyclic aromatic hydrocarbons ( PAHs), benzopyrene, aldehydes and ketones, stupid compounds, heterocyclic amines and other pollutants. The emission of cooking fume must be included in the standard. During the implementation of the standard, various localities have also launched special law enforcement inspections in accordance with the requirements of 'comprehensive law enforcement in the field of cooking fume pollution in the catering service industry'. The inspection content includes the registration and filing of all oil-fume emission units, oil-fume control equipment, oil-fume control measures, etc., and gradually established a system with multiple forms of inspection such as daily supervision, regular fixed-point inspections, return visits, and irregular raids. , To focus on ensuring the implementation, efficiency, and rectification effects of special law enforcement inspections. As far as catering companies are concerned, the control of oil fume pollution can be concentrated on two points:1, oil fume purification facilities2, oil fume online monitoring system There are some screening in the standard, and maintenance and maintenance should also be carried out in the follow-up operation. This is also one of the contents of the supervision of catering oil fume. The oil fume online monitoring system will detect the emission concentration in real time and give early warning in time. It integrates collection, analysis, and statistics, and can be connected to the platform of the environmental protection department to share data. In response to the country’s supervision of cooking fume in the catering industry, a set of oil fume online monitoring system was designed and produced. The system mainly includes two parts: oil fume online detector and oil fume monitoring platform. The oil fume online monitor can measure the oil fume concentration, particulate matter concentration, and non-methane total hydrocarbon (NMHC) concentration of the kitchen exhaust pipe for 24 hours, and upload it in real time. To the supporting oil fume monitoring platform or government monitoring platform. In order to prevent the business’s purifier or fan from not starting, the oil fume monitor can collect two current signals through a current transformer to monitor whether the purifier or fan is actually started. In order to facilitate the operation of the installation personnel, the whole machine adopts a 7-inch capacitive touch screen, and the all-Chinese interface is simple and easy to understand. The oil smoke monitor has a GPRS (4G optional) communication interface, which can be inserted into an ordinary mobile phone card or an IoT card for data upload, and the data can be uploaded where there is a mobile phone signal. The oil fume detector adopts a reasonable gas circuit design, which can achieve long-term operation and maintenance-free, and can be maintained once every six months at the longest. In order to solve the problem of the complex composition of oil fume on the oil fume monitoring site, a special sensor is designed. The product has a built-in diaphragm pump and adopts a suction pipe method to measure oil fume. The length of the suction pipe can be up to 5 meters, which can accurately analyze the concentration of oil fume and particulate matter. Monitoring is more accurate. The oil fume monitoring platform is composed of real-time data, data center and system management. It adopts B/S module development, Window interface style, simple and convenient operation; it supports real-time data and can be displayed through GIS maps and lists, icons, and curves. Meet the actual operation needs of users to view monitoring information at multiple levels. If the purification fan is not turned on or the purification value does not meet the standard, the platform will send platform alarms and mobile phone SMS alarms to relevant managers as soon as possible; the platform can also store 2 years of data information, and catering companies can intelligently filter a certain period of time according to conditions Check whether the purification results meet the required emission standards. Due to the high degree of public attention, the harmfulness of air pollution, the wide range of emissions, the complexity of types and components, and the difficulty of treatment, catering oil fume has become a source of industrial exhaust emissions and automobile exhaust emissions. Another major source of volatile organic compounds (VOCs) emissions. This is also the 'fortress' that must be conquered on the journey to win the battle to defend the blue sky.
Anyone who has seen the latest environmental monitoring systems sensor solution in operation cannot help but be impressed with how far the technology has progressed over the past few years.
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