Tubular Coke Oven Pressure Probe Guide for Heat and Clogging Control
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Solution Overview
Problem
Existing gas pressure measurement probes in coke ovens are prone to clogging, distortion due to heat, and require precise centering, leading to inaccurate pressure readings and potential oven wall damage.
Innovation Solution
A tubular guide with a circular cross-section housing three pressure probes arranged in an isosceles triangle configuration, featuring slits and conical ends, enhances heat resistance, ease of insertion, and accurate centering, reducing distortion and clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional probes with squeezed tips are used, then manufacturing cost is low, but the probe tips get clogged by coal and cannot provide reliable pressure measurements
Solution Approach 1:
The probe tip is designed with multiple small holes instead of a single opening. This porous configuration allows gas pressure to be measured through multiple pathways, significantly reducing the likelihood of complete clogging by coal particles while maintaining manufacturing simplicity
2Length of moving object
If long probes (more than 3 meters) are used, then the probe can reach the geometric center of the oven, but positioning becomes difficult and measurements may be erroneous
Solution Approach 1:
The probe system is divided into multiple segments with intermediate support points. These segments can be adjusted independently to achieve precise positioning at the geometric center, reducing the difficulty of handling long probes and improving positioning accuracy
3Manufacturing precision
If the probe is positioned at the geometric center of the coke oven, then centering is achieved, but the thermal center does not correspond to the geometric center due to non-uniform wall temperatures, leading to erroneous measurements
Solution Approach 1:
Temperature sensors are integrated into the probe system to detect the actual thermal center position. The system uses this temperature feedback to adjust the probe positioning dynamically, ensuring that pressure measurements are taken at the thermal center rather than just the geometric center
4Measurement precision
If three probes are used arranged on an oblique line, then the highest pressure peak can be identified by the closest probe to the thermal center, but the device complexity increases
Solution Approach 1:
The three probes are arranged asymmetrically on an oblique line rather than symmetrically. This asymmetric configuration allows one probe to be positioned closer to the expected thermal center while maintaining simple structural design, enabling identification of the maximum pressure peak without excessive complexity
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 solution provides reliable, accurate, and repeatable gas pressure measurements, preventing oven wall damage by maintaining probe alignment and reducing heat-induced distortions.
Implementation Method 1
Known gas pressure measurement probes comprise a pressure sensor which provides a continuous electrical signal
Data Source
AI summary
An apparatus (20) for measuring internal gas pressure of a coke oven (31) including a guide (24) receiving at least three pressure probes (21,22,23) each connected to a pressure sensor (61,62,63), wherein, said guide (24) has a circular cross section then forming a tubular guide (24). method (70) for manufacturing the apparatus is also provided. A coke oven (31) including at least one hole (301) through which the above apparatus (20) is inserted horizontally such that a front part of each of the three pressure probes (21,22,23) is inside the coke oven (31) and a rear part of each of the three pressure probes (21,22,23) is outside the coke oven (31).