Fluid test device with electrical connector having electric heating tube for heat exchange process
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Solution Overview
Problem
Conventional electrical connectors in fluid heat exchange systems experience vibration-induced faults due to fluid flow, leading to short-circuits and complex connection processes, and existing solutions either disrupt the fluid flow field or require complex sealing and insulation.
Innovation Solution
An electrical connector with integrated pressure measurement capabilities, allowing for fluid flow monitoring without disrupting the flow field, featuring a main body with total and static pressure acquisition portions to measure fluid state parameters, including flow speed and resistance, while suppressing vibrations through optimized design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrical connector is located in the fluid channel to transmit electric energy, then the heating device can function, but the electrical connector experiences forced vibration and resonance causing disengagement and short-circuit faults
Solution Approach 1:
The patent extracts the electrical connector from the fluid channel environment by guiding electrodes radially outward through the channel wall. This removes the connector from the harmful fluid flow path, eliminating vibration and resonance issues while maintaining electrical connectivity between heating elements.
Solution Approach 2:
The patent introduces an insulating guide structure as an intermediary component that facilitates the radial extraction of electrodes through the fluid channel wall. This mediator enables clean separation between the electrical connection function and the fluid flow path, preventing direct interaction between the connector and vibrating fluid.
2Reliability
If the electrical connector is extracted radially from the fluid channel, then vibration is avoided, but the connection and fixing processes become complex with many joints
Solution Approach 1:
The patent merges the electrical connection function with the fluid channel structure by integrating electrode guides and fixing features directly into the channel wall. This consolidation eliminates separate mounting components and reduces the number of joints, simplifying the overall connection structure while maintaining extraction benefits.
Solution Approach 2:
The fluid channel wall serves multiple functions: it contains the fluid, provides structural support, and acts as a guide and fixation structure for the extracted electrodes. This multi-functionality reduces the need for additional specialized components, simplifying the connection process.
3Reliability
If the electrical connector is extracted radially from the fluid channel, then vibration is avoided, but strict sealing is required to prevent fluid leakage
Solution Approach 1:
The patent employs flexible sealing elements such as O-rings or grommets within the insulating guide structure to create effective seals around the radially extracted electrodes. These flexible sealing components accommodate thermal expansion and vibration while maintaining fluid-tight barriers, simplifying the sealing process compared to rigid sealing methods.
4Reliability
If insulation leads are fixed to the inner wall of the fluid channel, then resonance is prevented, but insulation failure causes discharge and short-circuit faults
Solution Approach 1:
The patent extracts the electrical connector from the fluid channel environment by guiding electrodes radially outward through the channel wall. This removes the connector from the harmful fluid flow path, eliminating vibration and resonance issues while maintaining electrical connectivity between heating elements.
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
Enables accurate monitoring of fluid state parameters and suppression of vibrations, preventing faults and simplifying connection processes without affecting the fluid flow field, thus enhancing the reliability and efficiency of fluid heat exchange systems.
Implementation Method 1
An electric heating tube (or called a metal tubular electric heating element) is a charged element configured to convert electrical energy into thermal energy
Implementation Method 2
The total pressure acquisition portion includes a total pressure measuring hole provided in a first part, facing a flow direction of fluid, of the main body portion. The static pressure acquisition portion includes a static pressure measuring hole provided in a second part, parallel to the flow direction of fluid, of the main body portion
Data Source
AI summary
An electrical connector includes a main body portion, connection portions, a total pressure acquisition portion and a static pressure acquisition portion. The connection portions are configured to allow the main body portion to be electrically connected to a charged element provided in a flow channel. The total pressure acquisition portion includes a total pressure measuring hole provided in a first part, facing a flow direction of fluid, of the main body portion. The static pressure acquisition portion includes a static pressure measuring hole provided in a second part, parallel to the flow direction of the fluid, of the main body portion. The fluid state test device and the fluid heat exchange system having the electrical connector are also provided. Thus, the original flow field where the electrical connector of the electrode of the electric heat source is located may not be changed, which avoids destruction to the flow field.