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Problems in the oil fume monitoring system and the process of oil fume monitoring

by:Rika Sensors     2021-10-31
Problems in the oil fume monitoring system and the process of oil fume monitoring
With the development of society, people’s lives have become better and better, and their dietary requirements have become higher and higher. From this, a variety of restaurants have been derived to provide people with rich and convenient catering services. In order to meet the needs of today's people for catering. However, most of the restaurants are open in downtowns or commercial areas where people come and go. Once the oil fume pipeline layout is not appropriate, or the oil fume is incorrectly discharged, it will not only cause harm to the human body, but also affect our living environment. For this reason, it is necessary for us to strengthen oil fume monitoring.

Regarding the problem of oil fume pollution in the catering industry, my country promulgated the corresponding law 'Emission Standards for Fume Fume in the Catering Industry' as early as 2002. At the same time, in September 2019, the Ministry of Ecology and Environmental The Air Pollution Prevention and Control Law of the People's Republic of China improved the national air pollutant emission standards and improved ambient air quality. The Ministry of Ecology and Environment decided to revise the national environmental protection standard 'Fume Emission Standard for Catering Industry (GB 18483-2001)'.

Although there are clear regulations on oil fume monitoring in the law, in actual operation, due to the relationship between the monitoring technology and the restaurant itself, there are still many problems. This article will list the current problems. Catering fume control can help.

Problems of oil fume monitoring work

1. The oil fume purification treatment facilities and exhaust pipes of most enterprises are not cleaned for a long time, and there are thicker oil stains on the treatment facilities and pipe walls. When the oil fume passes the purification When processing facilities, the hot air flow will carry out the oil pollution accumulated on the equipment and pipelines, causing the outlet concentration to be higher than the actual concentration, making the emission concentration not up to the standard, and even the phenomenon that the outlet concentration is higher than the inlet concentration.

2. The oil fume exhaust pipes of some enterprises are not sealed, and the oil fume is running, emitting, dripping, and leaking. It is impossible to collect all the oil fume discharged. The environmental protection department cannot rely on the oil fume monitoring system to obtain accurate data.

3. In the 'Food Fume Emission Standard' (GB18483-2001), the material of the oil fume monitoring filter cartridge is not specified. At present, the stainless steel filter cartridge is commonly used. If the filter cartridge rusts, it will cause the monitoring result. Impact, because the rusty filter cartridge will affect the absorption of oil fume during the sampling process; and rust iron will be dissolved during ultrasonic cleaning, resulting in high data display and inaccurate analysis results.

4. During the working process of the oil smoke monitor, due to the long-term lack of cleaning and replacement equipment, a large amount of oil remains in the collector, which will also make the result higher than the actual situation.

5. For oil fume purification and treatment facilities that use water transport hoods, when monitoring their purification efficiency, the flue gas contains a large amount of moisture and more moisture, which interferes with the monitoring results and causes the monitoring results to be inaccurate .

II. Improvement measures in the process of oil fume monitoring

1. The oil fume purification devices of some restaurants that have been in operation but the monitoring conditions are not reasonable are reformed. For some new and expanded hotels, in addition to strictly implementing the 'three simultaneous 'Outside of the system, it is best for the approval department to conduct a strict review of the site conditions in conjunction with the construction party to ensure the rationality and operability of the equipment installation, and to prepare for future random inspections by environmental monitoring personnel.

2. Standardize the operation of on-site monitoring personnel, improve the ability of sampling personnel, and ensure the representativeness and authenticity of collected samples. Wear disposable gloves when replacing the sampling nozzle or filter cartridge. It is best to cooperate with two people to reduce the probability of oil contamination. In addition, it is recommended that the unit under test should regularly maintain and clean the oil fume purification device, on the one hand, it can ensure its normal operation, on the other hand, it can also ensure the monitoring results.

3. Choose special reagents produced by regular manufacturers, and regularly maintain and calibrate the instruments and equipment used in the laboratory.

4. Strengthen the construction of the station system. Establish and improve various rules and regulations, establish a complete environmental monitoring quality assurance system, and ensure the accuracy and reliability of monitoring data. Train laboratory analysts to analyze samples in strict accordance with technical specifications and operating procedures, thereby minimizing human error.

5. Strengthen business training and learning, and strive to improve the business level and legal norms of the monitoring personnel.

In order to improve people's quality of life, the implementation of oil fume monitoring is of great significance. It is necessary to standardize the sampling of oil fume monitoring and rationally design the smoke exhaust pipes to achieve ideal environmental management effects.

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