一种分析化学试验用气体采样装置
By integrating a detachable filter assembly and an independent storage bag, the gas sampling device solves the problems of cumbersome operation, easy contamination, and difficult maintenance of traditional devices, realizing convenient gas storage and efficient transfer, and improving the purity and accuracy of the sampled gas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTHWEST RES INST OF MINING & METALLURGY INST
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional gas sampling devices suffer from cumbersome operation, susceptibility to contamination, and lack of filtration capabilities during storage and transfer. Furthermore, they are difficult to use for independent gas storage and rapid maintenance.
A gas sampling device comprising a sampling tube, a separable storage unit, and a gas delivery hose has been designed. It integrates a detachable filter assembly and an independent storage bag, and achieves independent storage and convenient transfer of gas through a one-way valve and a detachable side cover. The threaded connection structure facilitates cleaning and maintenance.
It enables convenient gas extraction and independent sealed storage, improving transfer efficiency and sample purity, ensuring the safety of sampled gas and the accuracy of analytical data, while reducing maintenance difficulty and cost.
Smart Images
Figure CN224518277U_ABST
Abstract
Claims
1. A gas sampling device for use in analytical chemical testing, characterized in that: Including sampling cylinder (6), separable storage unit and gas delivery hose (16), the right side of the sampling cylinder (6) is provided with a detachable side cover (10), and the top end of the left side is provided with a fixed tube (4);Piston (7) is arranged through the right side of side cover (10), the right side of piston (7) is fixed with pull handle (8), and the left side extends to the inside of sampling cylinder (6);The top of sampling cylinder (6) is provided with a gas inlet assembly, which comprises a one-way valve (5) communicated with the fixed tube (4), and the one-way valve (5) is communicated with the inside through the second inner hole (21) at the top of sampling cylinder (6); The bottom of sampling cylinder (6) is provided with a gas outlet assembly, which comprises a gas outlet tube (19) communicated with the left side of the bottom end of sampling cylinder (6), and the gas outlet tube (19) is connected with valve (18) and second plug (17) in sequence; The separable storage unit comprises a storage bag (11), which is provided with a second connecting pipe (12) with a connecting port on the left side, and a second plug (14) movably connected to the second connecting pipe (12) through a connecting belt (13); The gas delivery hose (16) comprises first plug (15) and connecting head respectively arranged at both ends of the second plug (17) and the second connecting pipe (12); Wherein, the gas outlet tube (19) is communicated with the inside through the first inner hole (20) at the bottom of the sampling cylinder (6).
2. A gas sampling device for analytical chemical testing according to claim 1, characterized in that: The top end of the fixed tube (4) is detachably connected with a filter assembly, which comprises a fixed seat (3) and a movable seat (2): the bottom end of the fixed seat (3) is provided with a third plug (23) inserted with the fixed tube (4), and the inside is provided with a filter screen (22);The top end of the movable seat (2) is connected with the fixed seat (3) through a threaded structure, and the top is fixed with a first connecting pipe (1).
3. A gas sampling device for analytical chemical testing according to claim 1 or 2, characterized in that: The left side of the side cover (10) is provided with a connecting ring (25) with external threads, and the right side of the sampling cylinder (6) is provided with a connecting port (24) matched with the connecting ring (25) in screw thread.
4. A gas sampling device for analytical chemical testing according to claim 3, characterized in that: The top end and the bottom end of the side cover (10) are symmetrically fixed with convex handle (9) for screwing operation.
5. A gas sampling device for analytical chemical testing according to claim 4, characterized in that: The one-way valve (5) only allows one-way flow of gas from the fixed tube (4) to the inside of the sampling cylinder (6).