An oil fume collection device

Abstract

The invention discloses an oil smoke collection device. The oil smoke collection device comprises an oil smoke collection box which is communicated with a flue through a bypass, wherein a piston is arranged at an oil smoke inlet of the oil smoke collection box; an air inlet is formed in the piston; and a box body of the oil smoke collection box is provided with an air ventilation mechanism which is used for sucking oil smoke gas in the flue through the air inlet in the piston, and also an air outlet which is used for exhausting the oil smoke gas to the outside. The oil smoke collection device is provided with the piston type oil smoke collection box body which is used for collecting the oil smoke gas, so that the volume of the sucked oil smoke gas is constant, and is not influenced by the flowing speed of flue gas; and the sucked oil smoke gas can be compressed and then exhausted through the piston for concentration detection, so that the detection accuracy of subsequent oil smoke concentration is high.

Description

technical field [0001] The invention relates to the field of oil fume purifiers, in particular to an oil fume collection device capable of improving the detection accuracy of oil fume concentration. Background technique [0002] At present, catering establishments can be seen everywhere, and these places will inevitably produce a large amount of oily fumes during the cooking process, which will have a great impact on the production and life of surrounding enterprises and residents. For this reason, the environmental protection department requires catering institutions to install and use oil fume purifiers to reduce the impact of oil fume on the surrounding environment. [0003] At present, the most used and effective oil fume purifiers are mainly electrostatic oil fume purifiers. Its working principle is: the polarized area of ​​the purifier polarizes or charges the oil particles in the oil fume, making them charged. , and then let the charged oil particles pass through the...

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Problems solved by technology

This kind of electrostatic oil fume purifier also has the following problems: when the working capacity of the purifier reaches saturation, it is necessary to clean the plates used to absorb oily particles; otherwise, the purifier will lose its purifying ability

However, due to the complex composition of the oil fume itself, the physical and chemical properties of the adsorbed oil particles are not easy to detect, so it is difficult to produce a very effective method for testing the purification ability of the electrostatic oil fume purifier. At present, there are two detection methods, one is absorbance method, and the other is the illumination method. The structure of the collection and adsorption device used by these two methods to collect oil fume samples is unreasonable. The data collected by the collection and adsorption device has a great relationship with the flow rate, and the data is unstable; The volume of the collected gas; in addition, the concentration of the adsorbed oil fume is small and not concentrated, so the accuracy of the test results is not high enough

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