CN-224231563-U - A dust pollution prevention device for optical measurement

Abstract

The utility model discloses a smoke dust pollution prevention device for optical measurement, which belongs to the technical field of optical measurement, and is arranged on a test pipeline, and comprises an air inlet cylinder, wherein a partition piece is arranged in the air inlet cylinder, a dispersing air hole is formed in the partition piece, the interior of the air inlet cylinder is partitioned into a first cavity and a second cavity which are communicated with each other by the partition piece, gas enters the first cavity, then enters the second cavity through the partition piece, and the second cavity is communicated with the interior of the test pipeline, and an outer sleeve is arranged outside the air inlet cylinder, a third cavity is formed in the outer sleeve, and the gas enters the second cavity through the third cavity. According to the utility model, high-pressure gas is introduced into the test pipeline to clean the smoke dust particles in the test pipeline, so that the damage of the smoke dust particles to the optical lens in optical measurement is avoided, the experimental precision of the optical measurement can be improved, the cleaning mode is more convenient to operate, and the maintenance cost is reduced.

Inventors

• LI TIAN
• NING DEYUAN
• Lv Gaozhi
• WANG RUI
• DAI HAO
• HE MINGHUAN
• WANG XINLIN

Assignees

• 江苏费尔曼安全科技有限公司

Dates

Publication Date

20260512

Application Date

20250401

Claims (7)

1. 1. A smoke pollution prevention device for optical measurement, which is installed on a test pipe (100), characterized in that the smoke pollution prevention device comprises The gas inlet cylinder (10), a partition piece (11) is arranged in the gas inlet cylinder (10), a dispersing air hole (111) is formed in the partition piece (11), the inside of the gas inlet cylinder (10) is partitioned into a first cavity (101) and a second cavity (102) which are communicated with each other by the partition piece (11), after gas enters the first cavity (101), the gas enters the second cavity (102) through the partition piece (11), and the second cavity (102) is communicated with the inside of the test pipeline (100); The outer sleeve (20), outer sleeve (20) set up in the air inlet cylinder (10) is outside, be equipped with third cavity (201) in outer sleeve (20), gas is through third cavity (201) get into in second cavity (102).
2. 2. A smoke pollution prevention device for optical measurement according to claim 1, characterized in that the end of the air inlet cylinder (10) is connected to the test tube (100) by means of a connecting ferrule (30).
3. 3. A smoke pollution prevention device for optical measurements according to claim 1, characterized in that the outer sleeve (20) is connected to the test tube (100) by means of a positioning seat (40).
4. 4. A smoke pollution prevention device for optical measurement according to claim 1, wherein a first gas inlet (50) is provided on the gas inlet cylinder (10), said first gas inlet (50) being positioned in correspondence with the first cavity (101) for introducing gas into the first cavity (101).
5. 5. A smoke pollution prevention device for optical measurement according to claim 1, wherein said outer sleeve (20) is provided with a second gas inlet (60), gas entering said third cavity (201) through said second gas inlet (60).
6. 6. A smoke pollution control device for optical measurement according to claim 5, wherein said air inlet cylinder (10) is provided with an air inlet hole (103) for introducing air from said third cavity (201) into said second cavity (102).
7. 7. A smoke pollution prevention device for optical measurement according to claim 1, wherein said dispersing air holes (111) are uniformly distributed on said partition (11) to disperse the gas into said second cavity (102).

Description

A dust pollution prevention device for optical measurement Technical Field The utility model belongs to the technical field of optical measurement, and particularly relates to a smoke pollution prevention device for optical measurement. Background In the burning experiment, the generated smoke can be pumped into the smoke collecting hood by the tail end fan of the smoke collecting device, so that the smoke enters the smoke exhaust pipeline, the rear part of the smoke exhaust pipeline is provided with a measuring section, and a smoke density detecting optical element is arranged in the smoke exhaust pipeline to realize smoke density detecting treatment. Because the fire flue gas experiment has a large amount of smoke dust particles, the smoke dust particles are very easy to attach to the surface of the smoke density lens, the experimental result of the smoke density detection is influenced, the optical lens is damaged, and the ageing speed of the optical lens is accelerated. The existing smoke density detection system generally adopts a manual cleaning mode to clean smoke particles, and because a fire smoke experiment is generally carried out at a high place, the manual cleaning mode is high in difficulty, low in efficiency and potential safety hazard. Disclosure of utility model The utility model overcomes the defects of the prior art, and provides a smoke pollution prevention device for optical measurement, so as to solve the problems in the prior art. In order to achieve the aim, the utility model adopts the technical scheme that the device for preventing the smoke and dust pollution for optical measurement is arranged on a test pipeline and comprises The air inlet cylinder is internally provided with a partition piece, the partition piece is provided with dispersing air holes, the inside of the air inlet cylinder is divided into a first cavity and a second cavity which are communicated with each other by the partition piece, and after air enters the first cavity, the air enters the second cavity through the partition piece, and the second cavity is communicated with the inside of the test pipeline; the outer sleeve is arranged outside the air inlet cylinder, a third cavity is formed in the outer sleeve, and air enters the second cavity through the third cavity. In a preferred embodiment of the utility model, the end part of the air inlet cylinder is connected with the test pipeline through a connecting clamping sleeve. In a preferred embodiment of the utility model, the outer sleeve is connected with the test tube through a positioning seat. In a preferred embodiment of the present utility model, a first gas inlet is provided on the gas inlet cylinder, and the first gas inlet corresponds to the first cavity, so as to introduce gas into the first cavity. In a preferred embodiment of the utility model, a second gas inlet is arranged on the outer sleeve, and gas enters the third cavity through the second gas inlet. In a preferred embodiment of the present utility model, an air inlet hole is formed on the air inlet cylinder to allow air to enter the second cavity from the third cavity. In a preferred embodiment of the present utility model, the dispersing air holes are uniformly distributed on the partition member to disperse the air into the second cavity. The utility model solves the defects existing in the background technology, and has the following beneficial effects: The smoke dust pollution prevention device disclosed by the utility model is used for introducing high-pressure gas into the test pipeline to clean smoke dust particles in the test pipeline, so that the damage of the smoke dust particles to the optical lens in optical measurement is avoided, the protection of the optical lens is realized, the experimental precision of the optical measurement can be improved, the difficulty of the cleaning mode is lower, the operation is more convenient, and the maintenance cost is reduced. Drawings The utility model is further described below with reference to the drawings and examples; FIG. 1 is a schematic view of a preferred embodiment of the present utility model mated with a test tube; FIG. 2 is a schematic overall structure of a preferred embodiment of the present utility model; FIG. 3 is a cross-sectional view of FIG. 2; FIG. 4 is a schematic view showing the structure of a separator according to a preferred embodiment of the present utility model; In the figure, 100 parts of test pipelines, 200 parts of transmitting ends, 300 parts of receiving ends, 10 parts of air inlet cylinders, 11 parts of separating pieces, 111 parts of dispersing air holes, 101 parts of first cavities, 102 parts of second cavities, 103 parts of air inlet holes, 20 parts of outer sleeves, 201 parts of third cavities, 30 parts of connecting clamping sleeves, 40 parts of positioning seats, 50 parts of first air inlets, 60 parts of second air inlets. Detailed Description Various embodiments of the present utility model are discl