Reactor Temperature Sensor Jig for Pressure Loss Reduction
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Solution Overview
Problem
The installation of temperature sensors in heat exchange reactors is challenging due to the risk of fluid flow inhibition and pressure loss, especially when using elongated sensors like thermocouples, which are prone to bending and require complex insertion paths, leading to prolonged installation times, especially under high pressure conditions.
Innovation Solution
A reactor design featuring an introduction path with a tapered guide hole and a jig with a tapered hole to facilitate the easy installation of temperature sensors, allowing for guided insertion without causing pressure loss or fluid flow interference, using a pipe with a thin-wall part and a thick-wall part to ensure structural integrity and ease of sensor placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an elongated temperature sensor like a thermocouple is installed in the flow channel, then temperature measurement capability is improved, but fluid flow is inhibited and pressure loss increases
Solution Approach 1:
The temperature sensor is extracted from direct installation in the flow channel and placed in a dedicated sensor installation groove formed on the outer peripheral surface of the heat exchange section. This separates the measurement function from the fluid flow path, eliminating flow inhibition and pressure loss while maintaining temperature measurement capability through thermal conduction from the flow channel wall.
Solution Approach 2:
The heat exchange section wall acts as an intermediary between the fluid and the temperature sensor. The sensor measures the temperature of the wall surface, which is thermally coupled to the flowing fluid, thereby indirectly measuring fluid temperature without direct sensor-fluid contact that would cause flow resistance.
2Measurement precision
If an elongated temperature sensor is used, then temperature measurement capability is improved, but the sensor becomes easily bent and installation complexity increases
Solution Approach 1:
A jig with a guide hole is preliminarily installed in the sensor installation groove to provide a protective pathway for the temperature sensor during insertion. The guide hole prevents bending of the elongated sensor by constraining it to a straight path, and the jig remains in place to protect the sensor during subsequent operations.
Solution Approach 2:
The jig serves as an intermediary tool that facilitates sensor installation by providing a protective guide structure. The guide hole in the jig acts as a protective channel that prevents the elongated sensor from bending during insertion, simplifying the installation process.
3Ease of operation
If the insertion path for the temperature sensor is made complex to avoid steps, then sensor installation is facilitated, but installation time increases significantly
Solution Approach 1:
The jig with the guide hole is preliminarily positioned in the sensor installation groove before sensor insertion. This preliminary structure provides a ready-made protective pathway, eliminating the need for complex insertion path designs and enabling direct, rapid sensor installation without time-consuming adjustments.
Solution Approach 2:
The guide hole in the jig provides localized protection and guidance precisely where needed during sensor insertion. This localized quality approach simplifies the overall installation process by focusing the protective function only at the critical insertion point, rather than requiring complex overall path design.
Data Source
AI summary
A reactor includes: a heat exchange section including: a first flow channel configured to flow a reaction fluid and a second flow channel configured to flow a heat medium; an introduction path for a temperature sensor, extending from an insertion opening provided on a side surface of the heat exchange section to the first flow channel or the second flow channel; a pipe for a temperature sensor, connected to a side surface of the heat exchange section and communicating with the introduction path through the insertion opening; and a jig provided in the pipe. The jig is provided with a guide hole extending from the base end toward the tip end and opened toward the insertion opening of the introduction path. The guide hole is provided with a tapered hole directed from the base end toward the tip end.