Chemical monitoring sampling pipe structure

Abstract

The invention discloses a sampling pipe used for chemical technology process monitoring. The sampling pipe used for chemical technology process monitoring comprises a sampling outer pipe fixed to theside wall of a reaction container in a penetrating mode and a sampling inner pipe which is installed in the sampling outer pipe coaxially and rotatably in a sealed and matched mode, wherein multiple first sampling inlets are formed in the side, facing the material movement direction, of the sampling outer pipe, the interior of the sampling inner pipe is a sampling cavity used for receiving material which falls in through second sampling inlets from the first sampling inlets, the side, outside the reaction container, of the sampling cavity is communicated with the outside, an air cavity used for introducing compressed air into the sampling cavity is formed in the sampling outer pipe, and the air cavity is connected with a compressed air source through an air source pipeline. According to the sampling pipe, by means of an internal backflushing design, contact between the reaction container and the sampling pipe is not affected, and detection is accurate; by means of the air cavity air supply design, a blocking problem can be solved without taking out the sampling pipe, so that use is convenient; by means of the inner and outer pipe design, switching is flexibly carried out between sampling and backflushing.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a chemical monitoring sampling tube structure. Background technique [0002] As the name suggests, the sampling tube is a sampling device that can sample and detect continuous chemical reactions and is used to monitor the reaction, which has very important practical significance. According to different shapes of sampling products or different usage scenarios, sampling tubes have different designs, for example, sampling tubes for liquids and solids have different designs. [0003] The Chinese patent literature with the publication number CN1995955 discloses a fluidized bed axial multi-point parallel negative pressure solid particle sampling device, which is composed of a sampling tube, a valve and a sampling chamber, and one end of the sampling tube passes through the valve and the feeding tube It is connected with the sampling chamber, and the feeding pipe is installe...

AI Technical Summary

Problems solved by technology

In this technical solution, the purpose of anti-blocking is achieved by wrapping the sampling tube with the anti-blocking sleeve, but the anti-blocking also causes the relative isolation between the sampling tube and the sample, which reduces the accuracy of sampling

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