Sampling device for waste gas treatment

Abstract

The invention belongs to the technical field of waste gas treatment, especially to a sampling device for waste gas treatment. For sampling for existing exhaust gases, generally, gas in a gas taking pipe is pumped out through a vacuum pump, then waste gas is guided into the gas taking pipe under the action of negative pressure, however, the sampling mode easily causes that air is mixed in the wastegas finally obtained in the gas taking pipe, and subsequent waste gas analysis has errors, and the following scheme is provided: the sampling device comprises the gas taking pipe and a pipe cover. Aconnecting frame, a connecting groove, a baffle and a clamping ring are arranged, when sampling is conducted, firstly, gas in the gas taking pipe is pumped out through the vacuum pump, and then the gas taking pipe is placed in the waste gas tank, the clamping ring on the baffle is separated from the connecting groove in the connecting frame, waste gas in the waste gas tank enters the gas taking pipe under the action of negative pressure, the problem that the waste gas and air are mixed, and consequently the waste gas analysis result is wrong is solved, and it is guaranteed that sampling operation is conducted without mistakes.

Description

technical field [0001] The invention relates to the technical field of exhaust gas treatment, in particular to a sampling device for exhaust gas treatment. Background technique [0002] Exhaust gas treatment is also called exhaust gas purification. Waste gas treatment refers to the pretreatment of waste gas generated in industrial sites and factory workshops before being discharged to the outside, so as to meet the national standards for external discharge of waste gas. General waste gas treatment includes organic waste gas treatment, dust waste gas treatment, acid-base waste gas treatment, odor waste gas treatment and air sterilization, disinfection and purification. [0003] Existing waste gas sampling generally uses a vacuum pump to extract the gas in the gas sampling pipe, and then introduces the waste gas into the gas sampling pipe under the action of negative pressure, but this sampling method is likely to cause the final waste gas in the gas sampling pipe to be mixed...

AI Technical Summary

Problems solved by technology

[0004] Based on the existing waste gas sampling, the gas in the gas sampling pipe is generally extracted by a vacuum pump, and then the waste gas is introduced into the gas sampling pipe under the action of negative pressure, but this sampling method is likely to cause the final exhaust gas in the gas sampling pipe to be mixed. air, resulting in errors in subsequent exhaust gas analysis, the present invention proposes a sampling device for exhaust gas treatment

Images