Hole plug for smoke sampling gun

Abstract

The invention discloses a hole plug of a soot sampling gun and belongs to a mechanical plug body. The hole plug solves the problem that the soot sampling gun and a sampling hole can not be tightly matched. A plug body (3) is divided into a first flap plug body (9) and a second flap plug body (10) through the vertical surface of a central axis of a cone; the middle part of a conical plug body (3) is provided with a through hole (7) of the soot sampling gun along the direction of the central axis of the cone; the hole is reduced from the top to bottom; a plurality of circular grooves (8) which are parallel with each other and are parallel to the upper surface and the lower surface of the conical plug body (3) are arranged on the inner walls of the conical plug body (3) in the through hole (7); an inside diameter D (14) of the groove which is closest to the upper surface of the conical plug body (3) is the same as the outside diameter of the sampling gun (1); and an inside diameter E (15) of the groove which is closest to the lower surface of the conical plug body (3) is smaller than the outside diameter of the sampling gun (1) by 5 millimeters. The hole plug has simple and convenient detachment and mounting and is suitable for sampling holes with different apertures of a flue.

Description

Hole plug for smoke sampling gun technical field The invention relates to a plug body, in particular to a plug for blocking a sampling hole of a smoke sampling gun during smoke sampling. Background technique The smoke sampling gun is an important sampling device in the boiler smoke dust and flue gas emission test. In the boiler smoke dust and flue gas emission test, due to the different size of the flue sampling aperture, it is easy to generate a gap between the sampling gun and the flue gas, resulting in air leakage. , which affects the accuracy of sampling, and accidents of burning and scalding test personnel are prone to occur; at the same time, due to the non-close fit between the smoke sampling gun and the flue sampling hole during sampling and the limitation of environmental conditions, it is necessary for the test personnel to hold the sampling gun on site , increasing the labor intensity of the test personnel. Contents of the invention The plugging hole of a sm...

AI Technical Summary

Problems solved by technology

The plugging hole of a smoke sampling gun provided by the invention solves the problem that the smoke sampling gun and the flue sampling hole cannot be closely matched during sampling, which makes the sampling unstable and inaccurate, and requires the operator to hold the sampling gun for a long time, which is prone to burning accidents technical issues

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