Carrier-Sleeved Pneumatic Module for Accurate Gas Flow Measurement
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Solution Overview
Problem
Gas analysis devices face challenges in increasing measurement accuracy, robustness, and cost-effectiveness, while also requiring improved repair friendliness and compact design.
Innovation Solution
A pneumatic module with a carrier sleeve and flow module, where the flow module is thermally and mechanically shielded by the carrier sleeve, providing defined flow resistance and allowing for interchangeable and easily assembled components, enhancing measurement accuracy and operational robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the flow module is made with smaller wall thickness, inner diameter and/or outer diameter to improve measurement accuracy, then measurement accuracy is improved, but the flow module becomes more sensitive to mechanical and thermal influences from the environment
Solution Approach 1:
The support sleeve acts as an intermediary protective layer between the flow module and the external environment. It mechanically shields the flow module from external forces and thermally isolates it from environmental temperature variations, thereby protecting the delicate flow module while maintaining its precise dimensional characteristics for accurate measurement.
2Object-affected harmful factors
If the contact surface between support sleeve and flow module is minimized to reduce heat conduction, then thermal shielding is improved, but mechanical stability may be compromised
Solution Approach 1:
The support sleeve provides comprehensive mechanical support and protection along its entire length, ensuring structural stability. However, in the specific region where the flow module contacts the support sleeve, the contact surface is minimized to reduce thermal conduction. This local differentiation allows the system to maintain both mechanical stability and thermal shielding effectiveness.
3Ease of manufacture
If the pneumatic module is designed to be compact and cost-effective to manufacture, then manufacturing cost is reduced, but measurement accuracy and robustness may be compromised
Solution Approach 1:
The pneumatic module is divided into distinct functional components: the flow module for precise fluid control and the support sleeve for protection and mounting. This segmentation allows each component to be manufactured independently using cost-effective methods, then assembled into a compact integrated unit that maintains measurement accuracy while reducing overall manufacturing complexity and cost.
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 pneumatic module increases measurement accuracy, allows for compact and cost-effective production, and simplifies maintenance, enabling robust and reliable operation of gas analysis devices.
Implementation Method 1
The flow module is shielded by the support sleeve against mechanical and thermal influences from its environment. The connection between the support sleeve and the flow module at its first end serves to increase the operating temperature of the pneumatic module.
Implementation Method 2
Through the connection via the exchangeable pneumatic module, a fluid flow flows from one of the channels into the other channel. The exchangeable pneumatic module exerts a fluid-mechanical influence on the fluid flow, for example in the form of throttling, i.e., by causing a pressure loss.
Implementation Method 3
The fluid flow is adjusted by providing a defined flow resistance by means of the pneumatic module, so that an absolute pressure loss occurs at a corresponding strength of the fluid flow.
Data Source
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AI summary
The invention relates to a pneumatic module (10) for adjusting a fluid flow (12) that can be used in a gas analysis device (40). The pneumatic module (10) comprises a carrier sleeve (20) and a flow module (30) that is received in the carrier sleeve (20). According to the invention, the flow module (30) is permanently connected to the carrier sleeve (20) at a first end (32) to increase the measurement accuracy of the gas analysis device (40). The invention also relates to a method (100) for manufacturing such a pneumatic module (10). Furthermore, the invention relates to a gas analysis device (40) that comprises at least one such pneumatic module (10) and a computer program (60) with which the operating behavior of a corresponding pneumatic module (10) can be simulated.