Adjustable flange and smoke dust instrument applying compatibility of adjustable flange

Abstract

The invention discloses an adjustable flange which comprises a first flange piece capable of being connected with a flue and a second flange piece capable of being connected with a dust instrument. The first flange piece can slide relative to the second flange piece, a first optical path channel capable of being communicated into the flue is arranged in the first flange piece, and a second opticalpath channel capable of being communicated into the dust instrument is arranged in the second flange piece. The first optical path channel and the second optical path channel are communicated with each other to form an optical path adjusting channel, and the guide axis of the first optical path channel is parallel to the guide axis of the second optical path channel. The adjustable flange also comprises an optical path adjusting assembly, the optical path adjusting assembly is respectively connected with the first flange piece and the second flange piece; the optical path adjusting assembly can fix the relative positions of the first flange piece and the second flange piece so as to adjust the length of the optical path adjusting channel. The invention also provides a smoke dust instrument applying the compatibility of the adjustable flange, so that the smoke dust instrument can be matched and mounted with other flues except the flue with the diameter corresponding to a fixed opticalpath on site.

Description

technical field [0001] The invention relates to a smoke and dust detection device, in particular to an adjustable flange and a smoke and dust meter using the compatibility thereof. Background technique [0002] In the existing on-line detection equipment for flue gas from pollution sources, the smoke meter generally uses the laser backscattering method to measure the dust in the flue. However, this kind of smoke meter is generally set with a fixed optical path when it leaves the factory. The diameter of the measuring flue of this type of smoke meter has been fixed at the factory, so that this type of smoke meter can only pre-set its own fixed optical path based on the diameter of the flue on site. [0003] However, since this type of smoke meter has been set with a fixed optical path when it leaves the factory, when any smoke meter fails, it is difficult for the manufacturer to replace it with a smoke meter with another optical path, which will easily lead to the loss of the...

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Problems solved by technology

[0002] In the existing on-line detection equipment for flue gas from pollution sources, the smoke meter generally uses the laser backscattering method to measure the dust in the flue. However, this kind of smoke meter is generally set with a fixed optical path when it leaves the factory. The diameter of the measuring flue of this type of smoke meter has been fixed at the factory, so that this type of smoke meter can only pre-set its own fixed optical path based on the diameter of the flue on site

[0003] However, since this type of smoke meter has been s

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