Diet oil fume VOCs precision automatic monitor

Abstract

The invention discloses a diet oil fume VOCs precision automatic monitor. The monitor comprises an absorption liquid box, an absorption tank, an absorption tube, a first liquid discharge valve, a pump, a waste liquid box, a reaction chamber, a color developing agent chamber, a colorimetric chamber, a data processing system, a data window, a first liquid inlet valve, a second liquid inlet valve, a second liquid discharge valve, a third liquid discharge valve, a visual window, a stirring motor and a stirrer. The monitor has an advantage that through adding a novel high-efficiency catalyst load nano-silver metal organic framework ZIF-8 and a targeted color developing agent, chemical reaction with aldehydes and ketones in oil fume VOCs is performed, and a Beer-Lambert law is used to convert into an aldehyde ketone content so as to obtain an accurate oil fume VOCs concentration. By using the technology, detection of an existing traditional infrared spectrophotometry to oil fume is subverted, and the oil fume VOCs is quantified in a real sense.

Description

technical field [0001] The invention relates to an automatic monitor, in particular to a precise automatic monitor for VOCs of cooking fumes, belonging to the technical field of automatic monitors. Background technique [0002] The existing national standard "GB18483-2001 Oil Fume Emission Standard for Catering Industry" was promulgated nearly 20 years ago, which limits the monitored oil fume to be oily and gas-like substances that can be extracted by carbon tetrachloride. In fact, the oil fume components Complex, according to its physical properties, it can be divided into three forms: granular, aerosol and gaseous. According to the current technology, we only capture most of the substances in the first two forms, and the VOCs in the gaseous form are ignored by us. , The source analysis of atmospheric PM2.5 shows that nearly ten percent of the contribution rate comes from lampblack, which is the third largest source after traffic exhaust, and these neglected lampblack VOCs ...

AI Technical Summary

Problems solved by technology

[0003] Therefore, a precision automatic monitor for dietary oil fume VOCs is needed to meet the current market demand. Although a variety of electric vehicle innovative structure ratchet pawl clutches have been produced on the market, in general, there are still some problems. There are many common problems. First, the existing oil fume monitoring equipment is mainly on-line monitoring equipment, which uses the principle of sensors to sense the concentration of oil fume through high-sensitivity probes. This technology is widely used, but it has disadvantages But the probe is extremely susceptible to oil fume pollution and cause failure

Therefore, the oil fume online monitoring equipment based on the principle of gas sensor is relatively accurate at the beginning of its use, but after a short period of operation, the monitoring readings of the equipment are not accurate. For the equipment, the probe is a relatively core component, not a consumable that can be replaced at any time

These are the reasons why authoritative and desirable standards have been delayed in the field of oil fume on-line monitoring because the technology is immature. Observe the inside of the precise automatic monitor for cooking fume VOCs

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