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Photoelectric oil smoke sensor

A lampblack sensor, photoelectric technology, applied in instruments, scientific instruments, material analysis by optical means, etc., can solve the problems of complex clean air production, and achieve the effect of reducing the possibility of head contamination

Pending Publication Date: 2017-12-15
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the above method is that an external clean air source is required, the preparation of clean air is very complicated, and an external power source is required to pass the clean air into the device

Method used

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  • Photoelectric oil smoke sensor
  • Photoelectric oil smoke sensor
  • Photoelectric oil smoke sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 The photoelectric oil fume sensor shown includes a detection light emitting / receiving device 5, which has a head 51 capable of emitting or receiving detection light, the head is covered with a collimator tube 1 with a constant inner diameter, and the head 51 is sealed It is inserted into the opening at one end of the collimation tube 1 . The collimation tube 1 is provided with an electrostatic anti-oil pollution module, which includes a high-voltage pole 2 and a low-voltage pole 3, and the high-voltage pole 2 is attached to the insulating layer 4, and the insulating layer 4 is arranged on the lower part of the collimation tube 1; The low-voltage pole 3 is arranged on the upper part of the collimator tube 1 and placed opposite to the high-voltage pole 2; the high-voltage pole 2 is connected to the high-voltage generator 7, and the high-voltage generator 7 can be arranged inside the collimator tube or outside the collimator tube .

[0022] In this embod...

Embodiment 2

[0024] The difference from Embodiment 1 is that the inner diameter of the collimation tube is changed. In this embodiment, the change of the inner diameter is realized in the following way: a blocking plate 6 is provided in the middle of the collimating tube, and a hole is opened on the blocking plate. Through holes, the blocking plate 6 divides the interior of the collimation tube into two spaces. The electrostatic anti-oil pollution module can only be arranged in one of the spaces, and the electrostatic anti-oil pollution module can also be arranged in both spaces. In this embodiment, the electrostatic anti-oil pollution module is only arranged in a section of space away from the head 51. See figure 2 shown.

[0025] The above-mentioned collimation tube is designed with a deep cavity so that the head 51 of the detection light emitting / receiving device 5 will not be directly exposed to the oil fume flow, and the installation end of the head 51 is sealed so that the inside of...

Embodiment 3

[0028] Different from Embodiment 2, there are multiple blocking plates 6 in the above-mentioned collimating tube, arranged at intervals, three in this embodiment, and the diameters of the through holes on two adjacent blocking plates 6 can be the same or not. Same, the diameters of the through holes are the same in this embodiment. Three blocking plates 6 arranged at intervals divide the interior of the collimation tube into four spaces, and the anti-static anti-oil module can be installed in only one or two or three spaces, or static electricity can be installed in all four spaces. Anti-oil pollution module, in this embodiment, the electrostatic anti-oil pollution module is only set in a section of space farthest from the head 51, see image 3 shown.

[0029] The design of this multiple variable-diameter labyrinth makes the inner diameter of the collimation tube expand and shrink multiple times. When expanding, the oil fume obtains a radial diffusion driving force, and most ...

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Abstract

The invention relates to a photoelectric oil smoke sensor. The sensor comprises a detection light emitting / receiving device, the device comprises a head part for emitting or receiving detection light, and the head parts is externally sleeved with a collimator tube, and the sensor is characterized in that the collimator tube is internally provided with a static oil stain preventing module. Compared with the prior art, the product is advantageous in that: the collimator tube is internally provided with the static oil stain preventing module, the collimator tube can reach a collimated light path, at the same time oil smoke particles which enter the collimator tube can be effectively removed, pollution possibility of the head part is substantially reduced, and good dustproof and oil smoke pollution preventing effects are provided; furtherly, the collimator tube ensures superposition of an optical path channel and an oil stain preventing channel, the static oil stain preventing module does not influence detection performance of the sensor, flow speed and concentration of the oil smoke which needs to be removed by the static oil stain preventing module are low, accordingly required voltage is low, and only a DC power supply with low cost needs to be equipped.

Description

technical field [0001] The invention relates to a photoelectric oil fume sensor. Background technique [0002] A photoelectric sensor is a sensor that uses a photoelectric element as a detection element. It includes a detection light emitting device and a detection light receiving device. The detection light emitting device emits detection light, and the detection light receiving device receives the detection light. After the received detection light is refracted by the substance to be measured (such as oil smoke concentration), the light intensity Changes occur, and then the light intensity signal is further converted into an electrical signal by means of a photoelectric element. A photoelectric sensor is generally composed of three parts: a detection light emitting device, a detection light receiving device and a photoelectric element. The photoelectric detection method has the advantages of high precision, fast response, non-contact, etc., and has many measurable parame...

Claims

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Application Information

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IPC IPC(8): G01N21/53
CPCG01N21/534G01N2201/0642
Inventor 徐钦龙戴九松茅忠群诸永定刘戈
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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