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CN-224216714-U - Integrated full-scene adaptive type total phosphorus rapid detection platform

CN224216714UCN 224216714 UCN224216714 UCN 224216714UCN-224216714-U

Abstract

The scheme relates to an integrated full-scene adaptive type total phosphorus rapid detection platform, which comprises a raw water collection module, a sample digestion module, a sample injection reaction module and a detection module, wherein the raw water collection module comprises an automatic sampler capable of automatically switching a plurality of sample tubes and/or collecting raw water among online water samples, the sample digestion module comprises sulfuric acid mixed with a sample, a heating reactor, potassium persulfate mixed with mixed liquid and an ultraviolet digestion device, the sample injection reaction module comprises a color developing agent mixed with the ultraviolet digested sample, an ascorbic acid mixed with the mixed liquid and the heating reactor, the detection module comprises a flow cell of a final reaction product and a detector, and the full-flow automatic operation from raw water collection to final detection result output is realized through integrating the modules of raw water collection, sample digestion, sample injection reaction, detection and the like.

Inventors

  • SU YULIANG
  • Ye Zhengqi
  • ZHU XIAOFANG
  • HUA YU
  • WU BIN

Assignees

  • 珠海水控检测科技有限公司
  • 北京宝德仪器有限公司

Dates

Publication Date
20260508
Application Date
20250417

Claims (7)

  1. 1. The integrated full-scene adaptive total phosphorus rapid detection platform is characterized by comprising a raw water acquisition module, a sample digestion module, a sample injection reaction module and a detection module; The raw water collection module comprises an automatic sampler and a peristaltic pump, wherein the automatic sampler can automatically switch a plurality of sample tubes and/or collect raw water among online water samples; The sample digestion module comprises sulfuric acid mixed with the sample conveyed by the raw water collection module through a tee joint, a heating reactor for pumping the peristaltic pump of the sulfuric acid and the mixed liquid thereof, potassium persulfate mixed with the mixed liquid conveyed by the heating reactor, and an ultraviolet digestion device for pumping the peristaltic pump of the potassium persulfate and the mixed liquid thereof; The sample injection reaction module comprises a color developing agent mixed with the ultraviolet digested sample, ascorbic acid mixed with the mixed solution of the sample and the color developing agent, a peristaltic pump for pumping the color developing agent and the ascorbic acid, and a heating reactor for heating the mixed solution; The detection module comprises a flow cell and a detector of the final reaction product.
  2. 2. The integrated full-scene adaptive total phosphorus rapid detection platform of claim 1, wherein the raw water collection module further comprises a sampling valve capable of multi-pass rotation and a sampling ring for pumping raw water by a stable peristaltic pump.
  3. 3. The integrated full scene adaptive total phosphorus rapid detection platform of claim 2, wherein the raw water collection module further comprises a current carrying tank that pumps current carrying through a peristaltic pump, the current carrying of the current carrying tank being pumped to a sampling valve and pushing raw water of the sampling ring to a sample digestion module.
  4. 4. The integrated full-scene adaptive total phosphorus rapid detection platform according to claim 2, wherein the sampling valve is provided with a waste liquid outlet.
  5. 5. The integrated full-scene adaptive total phosphorus rapid detection platform according to claim 1, wherein the number of peristaltic pumps is 1, and the raw water collection module, the sample digestion module and the sample injection reaction module adopt the same peristaltic pump.
  6. 6. The integrated full scene adaptive total phosphorus rapid detection platform of claim 1, further comprising a surrounding reactor arranged at the rear end after mixing with potassium persulfate and after mixing with a color reagent.
  7. 7. The integrated full-scene adaptive total phosphorus rapid detection platform of claim 1, wherein the raw water collection module further comprises a refrigeration device capable of controlling raw water temperature of the sample tube and/or the autosampler.

Description

Integrated full-scene adaptive type total phosphorus rapid detection platform Technical Field The application relates to the technical field of water quality detection, in particular to the technical field of an integrated full-scene adaptive total phosphorus rapid detection platform. Background In the field of environmental monitoring, the determination of total phosphorus content is critical for assessing water quality conditions, as phosphorus is one of the main elements that cause eutrophication of water bodies. Ammonium molybdate photometry is commonly employed in total phosphorus detection as a classical and widely accepted method. However, conventional ammonium molybdate spectrophotometry typically requires complex sample pretreatment steps, which are time consuming and limit its use in rapid detection in the field. In addition, the method has higher requirements on the professional skills of operators, and errors are easily introduced due to human factors, so that the accuracy of the results is affected. Meanwhile, the detection equipment on the current market is focused on high-precision measurement in a laboratory environment or on-line monitoring in a specific scene, and off-line and on-line compatible full-scene adaptation is difficult to realize. Therefore, a comprehensive solution which can flexibly adapt to different application scene requirements and simultaneously ensure the detection speed and accuracy is lacking. Disclosure of Invention Aiming at the problems, the application provides an integrated full-scene adaptive type rapid total phosphorus detection platform, which utilizes the principle of flow injection analysis (Flow Injection Analysis, FIA) and combines with optimization of an ammonium molybdate photometry to overcome the limitations of the prior art and provide more convenient and efficient total phosphorus detection service for users. In order to achieve the above purpose, the present application adopts the following technical scheme: The application provides an integrated full-scene adaptive total phosphorus rapid detection platform which comprises a raw water acquisition module, a sample digestion module, a sample injection reaction module and a detection module, wherein the raw water acquisition module is used for acquiring raw water; The raw water collection module comprises an automatic sampler and a peristaltic pump, wherein the automatic sampler can automatically switch a plurality of sample tubes and/or collect raw water among online water samples; The sample digestion module comprises sulfuric acid mixed with the sample conveyed by the raw water collection module through a tee joint, a heating reactor for pumping the peristaltic pump of the sulfuric acid and the mixed liquid thereof, potassium persulfate mixed with the mixed liquid conveyed by the heating reactor, and an ultraviolet digestion device for pumping the peristaltic pump of the potassium persulfate and the mixed liquid thereof; The sample injection reaction module comprises a color developing agent mixed with the ultraviolet digested sample, ascorbic acid mixed with the mixed solution of the sample and the color developing agent, a peristaltic pump for pumping the color developing agent and the ascorbic acid, and a heating reactor for heating the mixed solution; The detection module comprises a flow cell and a detector of the final reaction product. The integrated full-scene adaptive type rapid total phosphorus detection platform provided by the application realizes full-flow automatic operation from raw water collection to final detection result output by integrating a plurality of modules such as raw water collection, sample digestion, sample injection reaction and detection. Furthermore, the whole process does not need manual intervention, so that the analysis time is greatly shortened and the operation difficulty is reduced. The platform is not only suitable for fine analysis in laboratory environment, but also can meet the rapid detection requirement of the field or industrial field, has the advantages of remarkable operation simplicity, high detection speed, high accuracy and the like, and provides a brand new solution for total phosphorus detection. The automatic sampler can intelligently switch a plurality of sample tubes and an online water sample, so that the flexibility and the efficiency of raw water treatment are greatly improved, the sample digestion module adopts a double digestion mode of combining sulfuric acid and potassium persulfate, and is assisted by a heating reactor and an ultraviolet digestion device, so that the digestion efficiency and the thoroughness are effectively improved, and the accuracy of a subsequent detection result is ensured. Meanwhile, bubbles are not required to be added between the samples and the reagents, and the repeated measurement can be realized without achieving the balance state of physical mixing and chemical reaction, so that the rapid and accurate analys