External circulation device for pure steam on-line monitoring and sampling

Abstract

The invention relates to an external circulation device for pure steam on-line monitoring and sampling. The external circulation device for pure steam on-line monitoring and sampling comprises a sampler. The sampler comprises a hollow shell and an outer circulating pipe. A conductivity cell is arranged in the shell. The shell comprises a top and a bottom which are oppositely arranged. The top of the shell is used for introducing pure steam or condensed water formed by the pure steam. The conductivity cell faces the top and is used for receiving condensed water. A conductivity probe is arrangedin the conductivity cell. The outer circulating pipe is arranged outside the shell. The external circulation device for pure steam on-line monitoring and sampling can prevent residual condensed waterin the conductivity cell and the shell from breeding microorganisms due to long-time shutdown, and equipment alarm caused by the fact that the conductivity probe monitors the conductivity of the residual condensed water is avoided. Condensed water in the conductivity cell is replaced quickly, and the monitored conductivity of the condensed water can well represent the purity of pure steam.

Description

technical field [0001] The invention relates to the technical field of pure steam monitoring and sampling, in particular to an external circulation device for online monitoring and sampling of pure steam. Background technique [0002] In the pharmaceutical production process, pure steam is also called clean steam or high-quality steam, and the condensed water of pure steam must meet the requirements of Chinese Pharmacopoeia for water for injection. Pure steam is mainly produced by a pure steam generator. The main function of the pure steam generator is to continuously and stably distill and "purify" raw water into pure steam that meets the requirements of the Pharmacopoeia. [0003] The electrical conductivity of pure steam is obtained through monitoring and sampling, and is used as data to judge the quality of pure steam. The pure steam is first condensed in the sampling condenser to form condensed water, and then the condensed water flows into the sampler, and the condens...

AI Technical Summary

Problems solved by technology

However, if the conductivity probe is directly placed in the large-space cavity, during the initial production or circulation of pure steam, since the condensed water remaining in the large-space cavity cannot be automatically discharged, the conductivity will exceed the set standard value (according to the provisions of the Chinese Pharmacopoeia) The maximum value of the conductivity is the set standard value) causing the equipment to alarm

Moreover, the flow of condensed water in the large space cavity is slow, the replacement of condensed water is slow, and there are errors in the monitored conductivity, which cannot well represent the purity of pure steam.

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