Sampling device for waste treatment atmospheric non-point source emission quantification

By designing a gas sampling device that includes a sampling hull and a gas path controller, the problems of low automation and poor environmental adaptability in the existing technology are solved, realizing continuous gas sampling and high-precision monitoring in complex environments, and supporting the data accuracy of the MRV system.

CN121384534APending Publication Date: 2026-01-23CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Patent Information

Application Number
CN202511479991.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-01-23

AI Technical Summary

Technical Problem

Existing gas sampling devices have low automation and low time resolution in complex open environments, making it impossible to achieve continuous online monitoring. They also have poor environmental adaptability and are difficult to operate stably in flowing water or complex weather conditions.

Method used

A sampling device was designed, comprising a sampling hull, an air pump, a gas exchange valve, and a gas analyzer. The metal sampling hull is stably held on a liquid or solid surface by gravity and buoyancy. Continuous gas monitoring is achieved by combining the gas path controller, and automated gas exchange is realized through Teflon tubing and solenoid valves.

Benefits of technology

It enables continuous gas sampling in complex environments, improves sampling efficiency and accuracy, and allows for real-time online monitoring of greenhouse gas emissions, providing highly representative data to support the MRV system.

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Abstract

The invention discloses a sampling device for waste treatment atmosphere non-point source emission quantification, and belongs to the technical field of gas sampling equipment.The sampling device comprises a sampling ship body, the sampling ship body comprises a cuboid frame with three faces enclosed, hollow quadrangular frames are installed at the two ends of the cuboid frame, and ventilation openings are formed in one ends of the two hollow quadrangular frames; the two hollow quadrangular frames are respectively used as a gas outlet and a gas inlet, the gas inlet is communicated with a gas pump, the gas pump is communicated with a gas inlet corrugated pipe, the sampling ship body is detachably connected with a floating body, the two hollow quadrangular frames are respectively communicated with a Teflon gas pipe, the other ends of the Teflon gas pipes are respectively communicated with different interfaces of a gas path exchange valve, and the gas path exchange valve is communicated with a gas analyzer. Continuous automatic online monitoring of solid and liquid atmospheric surface sources can be realized by loading and unloading the floating body, the defects of limited environment, low time resolution, low automation degree and the like when a traditional gas sampling device is used on the water surface are overcome, and the sampling efficiency, precision and reliability are greatly improved.
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