一种气相色谱仪自动进样器
By designing an autosampler for gas chromatographs that includes a support platform, injector, cleaning components, and control components, the problem of container replacement during the testing of multiple samples is solved, enabling rapid flow and cleaning of gas samples for convenient and rapid detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING AGRICULTURAL UNIVERSITY
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing gas chromatograph autosamplers require frequent changes of storage containers when testing multiple samples, making it difficult to quickly test multiple gas samples, and cleaning is inconvenient when switching flow channels.
An autosampler for gas chromatographs was designed, comprising a support platform, an injector, a cleaning component, and a control component. It is controlled by a second connecting pipe made of stainless steel and a solenoid valve to allow multiple gas samples to flow sequentially and to be cleaned before switching.
It enables rapid flow and convenient cleaning of multiple gas samples, improves detection efficiency, and ensures the speed and accuracy of different gas sample detection.
Smart Images
Figure CN224518667U_ABST
Abstract
Claims
1. A gas chromatograph autosampler comprising It has a support platform (1), an injector (4), a second connecting tube (5), a gas chromatograph (6), a cleaning component and a control component. The injector (4) is connected to the upper left side of the support platform (1), the second connecting tube (5) is connected to the upper right side of the injector (4), the gas chromatograph (6) is connected to the upper right side of the support platform (1), the rear of the support platform (1) is provided with a cleaning component that can clean the second connecting tube (5), and the injector (4) is provided with a control component that can sequentially control the flow of multiple different gas samples.
2. A gas chromatograph autosampler as defined in claim 1, characterized in that The second connecting pipe (5) is made of stainless steel.
3. A gas chromatograph autosampler as defined in claim 1, wherein, The cleaning assembly includes a cleaning gas cylinder (7), a third connecting pipe (8) and a first solenoid valve (9). The cleaning gas cylinder (7) is connected to the upper left rear part of the support platform (1). The third connecting pipe (8) is connected to the upper front part of the cleaning gas cylinder (7). The third connecting pipe (8) is connected to the injector (4). The first solenoid valve (9) is installed on the third connecting pipe (8).
4. A gas chromatograph autosampler as defined in claim 3, wherein, The cleaning gas cylinder (7) is a steel cylinder.
5. A gas chromatograph automatic sampler as defined in claim 1, wherein, It also includes a control component, which includes a sample storage gas bag (2), a first connecting tube (3), a second solenoid valve (10), a connecting main tube (11), a pressure regulating valve (12), and a three-way valve (13). The third connecting tube (8) is connected to the connecting main tube (11). Multiple first connecting tubes (3) are connected to the front, left, and right sides of the injector (4). Multiple first connecting tubes (3) are also connected to the outside of the connecting main tube (11). The first connecting tube (3) on the injector (4) and the first connecting tube (3) on the connecting main tube (11) are connected by a gas tube. The sample storage gas bag (2) is snapped onto the first connecting tube (3) on the injector (4). The second solenoid valve (10) is installed on the first connecting tube (3) on the connecting main tube (11). The pressure regulating valve (12) is installed at the lower part of the connecting main tube (11). The three-way valve (13) is installed on the right side of the second connecting tube (5). The three-way valve (13) is connected to the gas chromatograph (6).
6. A gas chromatograph automatic sampler as defined in claim 5 wherein, The three-way valve (13) has a handle on the rotating type.