Lab Workbench Venting Layout for Full-Coverage Harmful Gas Capture
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Solution Overview
Problem
Existing laboratory tables with fume hoods have inefficiencies in gas suction, leaving harmful gases unaddressed on both sides of the table, especially in corners, and discharge hazardous substances without purification.
Innovation Solution
An experimentation table integrated with a harmful gas reduction and air purification system, featuring an intake grill, intake duct, and dust collection device, which directs harmful gases through the chemical shelf and pillar spaces for efficient suction and purification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a duct-type fume hood is installed to exhaust harmful gases, then harmful gases can be discharged from the laboratory, but the suction power is concentrated on the front of the table and cannot reach both sides, especially corners, leaving harmful gases unaddressed
Solution Approach 1:
The exhaust system is divided into multiple independent suction units: a front suction unit with a first exhaust fan and duct, and rear suction units with second exhaust fans and ducts positioned at both sides of the workbench. This segmentation allows each unit to independently handle harmful gases in its specific zone, ensuring complete coverage including corners that were previously missed.
2Ease of operation
If reagents are stored on a shelf above the laboratory table for convenience, then management is easier, but odors are generated and harmful gases are not effectively removed
Solution Approach 1:
The reagent shelf is merged with the exhaust system by integrating intake ports directly into the shelf structure. The shelf serves dual functions: storage and active gas intake. This combination allows reagents to be easily accessible while simultaneously capturing harmful gases and odors at their source before they can disperse into the laboratory environment.
3Object-affected harmful factors
If a separate closed reagent storage device is installed to store reagents that generate harmful gases, then safety is improved, but laboratory space is limited and time utilization becomes inefficient
Solution Approach 1:
The reagent shelf is designed as a multi-functional unit that combines storage capability with active exhaust functionality. By integrating intake ports and exhaust ducts directly into the shelf structure, it serves both as a storage location for reagents and as an active gas capture system. This eliminates the need for separate storage devices while maintaining safety and improving space utilization.
4Object-affected harmful factors
If harmful gases are discharged through a duct system, then gases can be removed from the laboratory, but hazardous substances are discharged in an unpurified state, polluting the atmospheric environment
Solution Approach 1:
A purification device is introduced as an intermediary component in the exhaust system, positioned between the suction units and the external environment. This purification device processes harmful gases and hazardous substances before discharge, converting them into less harmful forms and preventing atmospheric pollution while maintaining effective gas removal capability.
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
The system effectively reduces harmful gases and improves air quality by ensuring complete suction of gases from the workbench area, reducing health risks and environmental pollution, while maintaining a simple and space-efficient design.
Implementation Method 1
an exhaust fan that generates negative pressure in the filter box to allow passage of suction fluid through the filter module
Implementation Method 2
a filter module that surrounds an exhaust port of the dust collection device and is spaced apart from left and right side walls and an upper wall of the filter box
Data Source
AI summary
Disclosed is an experimentation table integrated with a harmful gas reduction and air purification system. More particularly, the experimentation table integrated with a harmful gas reduction and air purification system includes a medicine shelf installed above a workbench; pillar parts formed on opposite sides of the workbench to support the medicine shelf; and an air purification system that ensures that harmful gases generated from the workbench are discharged through a lower space of the chemical shelf and inner spaces of the pillars, wherein the air purification system includes an intake grill formed using a lower space of the medicine shelf; an intake duct installed to communicate with an intake grill using inner spaces of the pillar parts; and a dust collection device installed in a lower space of the workbench and connected to the intake duct.