Burn Pit Refractory Sleeve Protects Burner Shaft
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Solution Overview
Problem
Ground flares in the oil and gas industry face challenges with flame deflection due to wind, which can damage the components of the ground flare and the burn pit.
Innovation Solution
The design includes a burn pit with a refractory passage, a burner shaft, and a refractory sleeve. The burner shaft delivers combustible gas to a flare tip structure, igniting it to create a flame directed towards the burn pit basin, while the refractory sleeve protects the burner shaft from damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ground flares are used to burn off excess gas, then gas handling and safety are improved, but flame deflection by wind damages the refractory wall and components
Solution Approach 1:
A refractory sleeve is introduced as an intermediary protective layer between the burner shaft and the flame. This sleeve made of heat-resistant material acts as a mediator that shields the burner shaft from direct exposure to high-temperature flames and hot gases, preventing thermal damage while allowing the flame to perform its gas burning function effectively
Solution Approach 2:
The refractory sleeve is nested around the burner shaft, creating a protective cavity. This nested structure allows the burner shaft to be positioned within the flame zone while the outer refractory sleeve protects it from thermal exposure, effectively isolating the sensitive component from the harsh thermal environment
2Productivity
If the burner shaft is exposed to deliver combustible gas, then gas delivery efficiency is improved, but the shaft is vulnerable to flame damage
Solution Approach 1:
The refractory sleeve serves as a protective intermediary that allows the burner shaft to maintain its gas delivery function while shielding it from thermal damage. The sleeve enables the shaft to operate in the flame zone without direct thermal exposure, preserving both gas delivery efficiency and structural integrity
Solution Approach 2:
The refractory sleeve acts as a flexible protective shell around the burner shaft. This shell-like structure provides thermal insulation and protection while allowing the burner shaft to maintain its position and function within the flame zone, preventing direct contact with high-temperature gases
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 effectively mitigates flame deflection and damage to the ground flare and burn pit components, ensuring reliable operation and safety.
Implementation Method 1
The refractory sleeve surrounds at least a portion of the burner shaft and is configured to protect the burner shaft from damage caused by the flame
Implementation Method 2
The flare tip structure ignites the combustible gas to create a flame directed towards the burn pit basin
Data Source
AI summary
A burn pit includes a burn pit basin, a refractory passage, a burner shaft, and a refractory sleeve. The burn pit basin is delineated by at least a first side wall, a refractory wall, and a second side wall. The refractory passage extends from the burn pit basin through the refractory wall. The burner shaft is disposed within the refractory passage and is configured to deliver a combustible gas to a flare tip structure at the burn pit basin. The flare tip structure ignites the combustible gas to create a flame directed towards the burn pit basin. The refractory sleeve surrounds at least a portion of the burner shaft and is configured to protect the burner shaft from damage caused by the flame.