Flow Housing Cooling Channel for High-Temperature Fluid Measurement
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Solution Overview
Problem
Existing flow measurement devices fail to maintain constant temperature and prevent overheating of electrical components when measuring fluids at high temperatures, leading to inaccurate measurements and potential component failure.
Innovation Solution
Incorporation of a cooling channel with coolant flow around the displacement chamber and the use of heat pipes to actively dissipate heat from the measuring fluid and electrical components, ensuring constant temperatures and reducing thermal stress on sensitive components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the flow housing and displacement chamber are exposed to hot measuring fluid for measurement purposes, then measurement capability at high temperatures is achieved, but electrical components and the drive unit overheat leading to potential failure and measurement inaccuracies
Solution Approach 1:
The flow housing is divided into thermally isolated zones: a hot zone containing the displacement chamber exposed to measuring fluid for measurement, and a cool zone containing electrical components protected from heat. This spatial segmentation allows the measurement zone to operate at high temperatures while protecting sensitive components through thermal isolation.
Solution Approach 2:
A cooling channel filled with coolant acts as a thermal intermediary between the hot measuring fluid and the electrical components. The coolant absorbs heat from the displacement chamber area and transports it away, preventing heat transfer to sensitive electronic components while allowing the measurement function to operate in the hot zone.
2Temperature
If the displacement chamber is surrounded by cooling channels for active cooling, then temperature control is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The cooling channels are integrated directly into the flow housing structure, combining the housing function with the cooling function in a single component. This eliminates the need for separate cooling jackets or external cooling systems, reducing overall device complexity while maintaining effective temperature control of the displacement chamber.
Solution Approach 2:
The flow housing serves multiple functions simultaneously: it contains the displacement chamber for measurement, provides structural support, and acts as a heat transfer medium through integrated cooling channels. This multi-functionality reduces the number of separate components needed while achieving both measurement capability and thermal management.
3Device complexity
If electrical components are placed close to the displacement chamber for compact design, then device size is reduced, but thermal radiation causes overheating and measurement inaccuracies
Solution Approach 1:
Different regions of the flow housing have different thermal characteristics: the displacement chamber region is designed for heat exposure to enable measurement, while the electrical component region is designed with thermal protection. This local differentiation allows compact arrangement of components while maintaining appropriate thermal conditions in each zone through targeted cooling channel placement.
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 solution allows for reliable and accurate long-term measurement of flow processes at high temperatures, protecting electrical components from overheating and improving measurement precision while extending the service life of the system.
Implementation Method 1
a cooling channel through which coolant can flow is formed in the flow housing
Implementation Method 2
Heat is actively removed from the area in order to be able to carry out active cooling even with measuring fluids at high temperatures
Implementation Method 3
the device has at least one heat pipe, via which heat from heat-generating components of the device can be transferred to the coolant flowing through the cooling channel
Data Source
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AI summary
The invention relates to a device for measuring through-flow processes of fluids, comprising an inlet (10), an outlet (12), a flow housing (38), in which the fluid flows, a drivable displacement meter (16), which is arranged in the flow housing (38), a bypass line (20), by means of which the displacement meter (16) can be bypassed, a pressure difference sensor (22), which is arranged in the bypass line (20) and is arranged in the flow housing (38), and an evaluation and control unit (32), by means of which the drivable displacement meter (16) can be controlled in accordance with the pressure difference present at the pressure difference sensor (22). According to the invention, in order to ensure the correct operation of the device even in the case of use for measurement fluids having temperatures of up to 200 °C, a cooling channel (50) through which coolant can flow is formed in the flow housing (38).