Headspace Sample Introduction Device Cooling Transfer Means
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Solution Overview
Problem
Conventional headspace sample introduction devices do not adequately prevent hot sample containers from contacting users during the analysis process, posing a safety risk.
Innovation Solution
A headspace sample introduction device equipped with a cooling transfer means that cools sample containers after gas collection, allowing them to be safely returned to the sample tray without direct user contact, utilizing natural air-cooling or forced airflow via a blower, and incorporating a casing to prevent accidental contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sample containers are heated in the oven to volatilize sample components, then the sample gas collection efficiency is improved, but the safety risk of hot containers contacting users increases
Solution Approach 1:
A cooling transfer means is introduced as an intermediary component between the heating oven and the sample tray. This cooling transfer means includes a cooling chamber that receives hot sample containers from the oven, cools them through natural convection or forced airflow, and then transfers the cooled containers to the sample tray. This intermediary cooling step eliminates the safety hazard of hot containers while maintaining the heating efficiency for sample gas collection
2Object-affected harmful factors
If a cooling transfer means is added to cool sample containers, then user safety is improved, but the device complexity increases
Solution Approach 1:
The cooling transfer means utilizes natural air convection currents within the cooling chamber to cool sample containers without requiring active cooling components. The chamber is designed with specific airflow paths that allow hot air to rise and cool air to sink, creating a natural circulation pattern that cools containers passively. This self-service cooling approach improves safety while minimizing device complexity by eliminating the need for fans, compressors, or other active cooling systems
Solution Approach 2:
The cooling transfer means can be implemented as a simple, inexpensive structural addition to the existing headspace device. The cooling chamber is designed as a straightforward enclosure with minimal components, making it a cost-effective solution that adds safety functionality without significant investment in complex cooling technology
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively prevents hot sample containers from contacting users by cooling them before returning them to the sample tray, ensuring user safety while maintaining efficient sample gas introduction into analyzers.
Implementation Method 1
The cooling transfer means in the present invention may cool the sample container by natural air-cooling
Implementation Method 2
the cooling transfer means may desirably have a structure which forcibly cools the sample container by generating airflows around the sample container with a blower, such as a fan
Implementation Method 3
a heating means for heating at least one sample container taken from the sample tray
Data Source
AI summary
A headspace sample introduction device which collects a sample gas from a sample container and introduces the gas into a predetermined analyzer is provided. The device includes a sample tray 10 capable of holding at least one sample container 100 storing a liquid sample or a solid sample, a heating means 30 for heating at least one sample container 100 taken from the sample tray 10, a sample-gas collecting means 40 for collecting a sample gas from the upper space in the sample container 100 held in the heating means 30, and a cooling transfer means 20 for keeping and cooling at least one sample container 100 taken from the heating means 30 and returning the cooled sample container 100 to the sample tray 20. Since the headspace sample introduction device can return the heated sample containers 100 to the sample tray 10 after they are cooled with the cooling transfer means 20, the hot sample containers can be assuredly prevented from contacting the user.