Automatic sampling device used in chemical synthesis process

Abstract

The invention discloses an automatic sampling device used in the chemical synthesis process. The automatic sampling device comprises a sample chamber, a sampling pipeline, a washing pipeline, a backflow pipeline, an emptying pipeline, a vacuum pipeline, a sample discharging pipeline and a controller, wherein the sampling pipeline, the washing pipeline, the backflow pipeline, the emptying pipeline, the vacuum pipeline, the sample discharging pipeline and the controller are communicated with the sample chamber. One end of the sampling pipeline stretches into the bottom of the sample chamber and is provided with a sample valve. The lower end of the emptying pipeline stretches into the top of the sample chamber and is provided with a vent valve. The vacuum pipeline stretches into the top of the sample chamber and is connected with a vacuum system and provided with a vacuum valve. The sample discharging pipeline is connected to the lower portion of the side wall of the sample chamber and provided with a sample discharging valve. One end of the backflow pipeline is communicated with the bottom of the sample chamber and provided with a backflow valve. The washing pipeline is communicated with a tap water system and further provided with a washing valve. All the valves are electrically connected with the controller. The whole sampling process is very automatic, the automatic sampling device has the advantages of being safe, quick, easy to operate and the like, the sampling safety coefficient in the chemical synthesis process is increased, and meanwhile the stability in the reaction process, the reaction yield and the product quality are guaranteed.

Description

technical field [0001] The invention relates to the field of chemical synthesis, in particular to an automatic sampling device in the process of chemical synthesis. Background technique [0002] In chemical synthesis, the control of the process and the end point are crucial factors, especially the process directly affects the yield of the end point reaction and the quality of the product. In the process of chemical synthesis, in order to clearly know the state of the material reaction, it is required Sampling is often carried out to detect some corresponding indicators, and the state of the reaction materials is more complicated, and the materials are often hazardous. The traditional sampling method often turns off the stirring first, and then uses sampling bottles, spoons, etc. to sample. The sampling process is very cumbersome and dangerous. At the same time, the reaction process is affected by the turning off of the stirring, or the reaction cannot be accurately grasped d...

AI Technical Summary

Problems solved by technology

The traditional sampling method often turns off the stirring first, and then uses sampling bottles, spoons, etc. to take samples. The sampling process is very cumbersome and dangerous. At the same time, the reaction process is affected by the turning off of the stirring, or the reaction cannot be accurately grasped due to the inability to sample. state, which has a certain impact on the yield of the reaction and the quality of the product; there are also some synthetic reactions that must be fully sealed, and the traditional sampling method can no longer meet the chemical synthesis of this fully sealed reaction.

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