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2020-11-24
Industrial waste gas detection refers to the general term for the detection of various pollutant-containing gases discharged into the air during the fuel combustion and production processes in the factory area. Industrial waste gas detection includes organic waste gas detection and inorganic waste gas detection. Organic waste gas mainly includes various hydrocarbons, alcohols, aldehydes, acids, ketones and amines; inorganic waste gas mainly includes sulfur oxides, nitrogen oxides, carbon oxides, halogens and their compounds. Industrial waste gas has different treatment methods according to its exhaust air volume, temperature, concentration and its own chemical and physical properties. Industrial waste gas is an important source of air pollutants. A large amount of industrial waste gas is discharged into the atmosphere, which will inevitably reduce the quality of the atmospheric environment, bring serious harm to human health, and cause huge losses to the national economy. After harmful
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2020-11-24
All sounds that hinder people's normal rest, study and work, as well as sounds that interfere with the sounds people want to hear, are all noise. In this sense, there are many sources of noise, such as the sound of cars on the street, the sound of talking in a quiet library, the sound of machinery on construction sites, and the excessively loud sound of neighboring TV sets. Noise is a kind of physical pollution. It refers to the unwanted and annoying sound of people. It is considered to be the third largest public hazard after air pollution and water pollution, and causes great harm to human health. Test items: 1. Environmental noise (regional environmental noise, road traffic noise) 2. Industrial enterprise plant boundary noise 3. Social life environmental noise 4. Construction site boundary noise 5. Workplace noise, vibration
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2020-11-24
Working principle The liquid resistance detection method is to fill the oil and gas recovery pipeline with nitrogen at the specified nitrogen flow rate, and simulate the oil and gas passing through the oil and gas recovery pipeline. Use a pressure gauge or equivalent device to detect the liquid resistance of the gas passing through the pipeline to understand the degree of resistance to the gas caused by various reasons in the pipe to determine whether it affects the oil and gas recovery. The airtightness detection method uses nitrogen to pressurize the vapor recovery system to 500 Pa, allowing the system pressure to decay. The residual pressure value after 5 minutes of detection is compared with the minimum residual pressure limit specified in Table 2. If it is lower than the limit, it indicates that the leakage degree of the system exceeds the allowable range. The gas-liquid ratio detection method is to install a tight adapter at the nozzle of the fueling gun. The adapter is connected