Extraction Booth Ventilation with External Electrical Equipment
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Solution Overview
Problem
The use of hazardous solvents in oil extraction poses safety risks due to flammability, explosive vapors, and physiologic damage, requiring expensive explosion-proof and intrinsically safe equipment, which is costly and complex to implement.
Innovation Solution
An oil extraction booth with prefabricated panels and a full ventilation system, where all electrical equipment is located outside, reducing the need for rated equipment and incorporating a monitoring system to alert personnel of hazardous gas or liquid concentrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If explosion-proof and intrinsically safe equipment is used in the extraction booth, then safety is improved, but cost and device complexity increase
Solution Approach 1:
The patent extracts electrical equipment from the hazardous extraction booth environment and relocates it to a safe external location. The electrical equipment is connected to the extraction system through sealed penetrations in the booth walls, eliminating the need for explosion-proof ratings on electrical components while maintaining safety by removing the ignition source from the hazardous atmosphere.
Solution Approach 2:
The patent introduces sealed penetrations as intermediary elements that allow electrical connections to pass through the booth wall while maintaining the hazardous area boundary. These sealed penetrations act as mediators between the hazardous extraction environment and the safe electrical equipment location, preventing solvent vapor leakage while enabling functional connectivity.
2Reliability
If explosion-proof and intrinsically safe equipment is used in the extraction booth, then safety is improved, but cost increases
Solution Approach 1:
The patent extracts electrical equipment from the hazardous extraction booth environment and relocates it to a safe external location. The electrical equipment is connected to the extraction system through sealed penetrations in the booth walls, eliminating the need for explosion-proof ratings on electrical components and significantly reducing equipment costs.
3Reliability
If a ventilation system with gas detection is implemented, then safety is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback-based safety system where solvent vapor sensors continuously monitor the extraction booth atmosphere and provide real-time feedback to the ventilation control system. When solvent vapor concentrations approach hazardous levels, the system automatically increases ventilation airflow to maintain safe conditions, creating a closed-loop safety mechanism.
Solution Approach 2:
The ventilation system is designed to automatically respond to hazardous conditions without requiring manual intervention. The gas detection and ventilation control work together as a self-regulating system that monitors and adjusts airflow based on real-time solvent vapor concentrations, providing autonomous safety management.
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
This configuration provides a safe and economical working environment by minimizing the use of expensive rated equipment and enhancing safety through external electrical components and a ventilation system that automatically adjusts airflow based on gas detection.
Implementation Method 1
The booth includes a ventilation system with a plenum, supply vents, return air grills, and an exhaust fan. The exhaust fan creates negative pressure to pull air and hazardous vapors through the extraction booth and expel them to the exterior.
Implementation Method 2
A hazardous gas monitor/sensor is provided inside the extraction booth to detect when the concentration of liquid or gas vapor approaches a hazardous level.
Data Source
AI summary
An oil extraction booth, comprising: first and second pre-fabricated modules securable to each other to create a first air-tight interior work space; an inlet blower; an exhaust blower; a sensor sensitive to the presence of a gas within the work space; and a controller electrically coupled to control the speed of the inlet blower and the exhaust blower and electrically coupled to receive a signal from the sensor indicative of an amount of the gas in the work space. The controller is configured to operate the inlet blower and the outlet blower at a first speed when the amount of the gas detected by the sensor is less than a first predetermined value and operate the inlet blower and the outlet blower at a second, higher speed when the amount of the gas equals or exceeds the first predetermined value.