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High reliability oil fume detection method

A detection method and a reliable technology, applied in the fields of oil fume removal, heating method, household stove/stove, etc., can solve the problems of increased uncertainty in fan control, high temperature collection time point selection requirements, etc., to achieve high accuracy and high The effect of reliability

Active Publication Date: 2019-03-08
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the calculation of the temperature change rate has high requirements for the selection of the temperature collection time point, which will vary depending on the speed of the user's operation, which adds a lot of uncertainty to the fan control

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] An embodiment of the present invention provides a highly reliable cooking fume detection method. The method is as follows: the range hood collects real-time temperature T0, and judges the difference between the collected real-time temperature T0 and the reference temperature T to determine whether the cooking fume or water The situation of the steam, and finally control the operation of the fan according to the situation of the oil fume or water vapor.

[0029] For the reference temperature T, the real-time temperature T0 is taken once at each update time Δt, and a total of 15 values ​​are t...

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Abstract

The invention discloses a high-reliability oil smoke detection method. A smoke exhaust ventilator collects a real-time temperature, the condition of oil fume or steam is judged with the difference value obtained through comparison of the collected real-time temperature and a reference temperature, and finally a draught fan is controlled to rotate according to the condition of the oil fume or the steam. The draught fan can be controlled to rotate, the influences of sampling time are excluded, and the accuracy rate is higher.

Description

technical field [0001] The invention belongs to the technical field of range hoods, and in particular relates to a highly reliable method for detecting oil fume. Background technique [0002] The oil fume detection and control methods in the prior art mainly include the following types: [0003] 1. Generally, the method of controlling the operation of the fan by detecting the temperature of the oil fume is to control the fan to turn on, off or switch when the detected temperature reaches a certain set value, but the temperature change in the whole cooking process is more complicated, and the temperature is not necessarily proportional to the concentration of the oil fume. Therefore, this method cannot accurately reflect the actual change of oil fume, and it will also cause the fan operation to be inconsistent with the change of oil fume. [0004] 2. Collect the change rule of the pot top temperature in real time during the cooking process, and use the change rate of the pot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00F24C15/20
CPCF04D27/00F24C15/2021
Inventor 欧海飞何玉霞潘叶江
Owner VATTI CORP LTD