Smoke diluting device

Abstract

The invention discloses a smoke diluting device which comprises a smoke collecting chamber, an air collecting chamber, a smoke diluting chamber, a first piston and a second piston, wherein the smoke collecting chamber is provided with a smoke inlet valve and a smoke outlet valve; the air collecting chamber is provided with an air inlet valve and an air outlet valve; the smoke diluting chamber is provided with an outlet; the smoke collecting chamber is communicated with the smoke diluting chamber by the smoke outlet valve; the air collecting chamber is communicated with the smoke diluting chamber by the air outlet valve; the first piston is arranged in the smoke collecting chamber and is in fit with the smoke collecting chamber; and the second piston is arranged in the air collecting chamber and is in fit with the air collecting chamber. The smoke diluting device is simple to operate, is low in price, can conveniently and rapidly carry out smoke collection and dilution and is convenient for sampling and detection of a small-range smoke analysis meter; and moreover, the smoke diluting device has no special requirements on smoke components, is influenced a little by oil stain, particles and corrosive gas and is suitable for rapid dilution, sampling and analysis on the smoke components in various high-concentration smoke.

Description

technical field [0001] The invention relates to the technical field of experimental equipment, in particular to a smoke dilution device. Background technique [0002] In social life, fire is one of the disasters that threaten public safety and endanger people's lives and properties. [0003] When a fire breaks out, smoke is one of the main causes of casualties, especially in various cabins such as aircraft, ships, buildings and other airtight or semi-closed cabin environments. Once a fire breaks out, a large amount of toxic smoke will be produced in a short period of time. The concentration of smoke (especially highly toxic carbon monoxide) is often very high. When a large amount of gas is inhaled, it can instantly cause deep coma or even death. [0004] Therefore, in a fire or smoke simulation environment, the detection of smoke concentration is the most basic observation and evaluation index. However, once a fire breaks out in various cabins, the concentration of smoke w...

AI Technical Summary

Problems solved by technology

However, once a fire breaks out in various cabins, the concentration of smoke will far exceed the detection limit of conventional smoke detection equipment, and high-range cutting-edge detection equipment is often worth hundreds of thousands or even hundreds of thousands, which is difficult to be widely used in conventional fires or In the detection of smoke inhalation poisoning experiments, and these expensive experimental equipment are often more sophisticated, and have relatively high requirements on the nature of the test object. If the smoke contains acidic or corrosive gases, oily smoke or a large number of particles, it will be fatal to the testing equipment. damage

[0005] Therefore, how to solve the problem that the concentration of smoke is so high that it is difficult to detect the concentration of smoke is a technical problem that those skilled in the art need to solve

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