Movable Gas Distributor for Exhaust Measurement Cabinets
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Solution Overview
Problem
Existing switch cabinets for exhaust-gas measurement installations require costly and space-consuming heater units and temperature monitoring for maintaining gas temperature, and maintenance is complicated due to the need to remove hoses and cables from measuring devices.
Innovation Solution
A switch cabinet design where the measurement gas distributor is movable relative to the cabinet body, allowing for a gas-tight connection without hoses or metal conduits, and incorporating an extension and retraction device for easy maintenance, eliminating the need for heater units and temperature monitoring at measuring device inlets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heater units and temperature monitoring units are installed at each measuring device inlet, then the gas temperature can be maintained, but the cost and installation space increase
Solution Approach 1:
The patent combines the temperature control function from multiple individual heater units into a single centralized heater unit located in the measurement gas distributor. This single heater unit heats the measurement gas before it is distributed to multiple measuring devices, eliminating the need for separate heater units at each device inlet. The same approach applies to temperature monitoring, where a single monitoring unit in the distributor replaces multiple monitoring units at various inlets.
Solution Approach 2:
The measurement gas distributor serves multiple functions: it distributes measurement gas to multiple measuring devices, provides centralized heating through a single heater unit, and performs centralized temperature monitoring. This multi-functional design eliminates the need for separate temperature control systems at each measuring device inlet.
2Quantity of substance
If measuring devices are connected via hoses and metal conduits, then gas can be conducted to measuring devices, but maintenance becomes difficult requiring removal of devices and connections
Solution Approach 1:
The patent extracts the complex hose and conduit connection system and replaces it with a direct coupling mechanism. The measurement gas distributor is designed with coupling elements that directly connect to the measuring devices without requiring intermediate hoses or metal conduits. This simplification makes maintenance easier as devices can be accessed and maintained without dealing with complex connection systems.
Solution Approach 2:
The measurement gas distributor is designed as a movable, separable component with coupling elements that can be easily connected and disconnected. This segmentation allows the distributor to be moved or removed for maintenance without requiring the entire system to be disassembled, and enables easy access to individual measuring devices.
3Device complexity
If the measurement gas distributor is stationary, then the structure is simple, but the measuring devices require larger sizes and higher costs due to integrated heater and temperature monitoring units
Solution Approach 1:
The patent makes the measurement gas distributor movable rather than stationary. The distributor can move relative to the cabinet body and is designed with coupling elements that can be connected by insertion to the measuring devices. This dynamic design allows for simplified measuring devices without integrated heater and temperature monitoring units, reducing their size and cost while maintaining structural simplicity through the movable distributor design.
Data Source
AI summary
A switch cabinet for an exhaust-gas measurement installation includes a cabinet body with two side walls, a ceiling, a floor, a front side and a back wall, a door to close the front side, a measurement gas distributor arranged in the cabinet body with an outlet, a coupling element fastened to the measurement gas distributor to form the outlet, at least one measuring device arranged in the cabinet body with an inlet, and a coupling element fastened to the at least one measuring device to form the inlet. The inlet is connected to the outlet to provide a gas-tight connection. The measurement gas distributor moves relative to the cabinet body so that the coupling element fastened to the measurement gas distributor and forming the outlet can be connected by insertion to the coupling element fastened to the at least one measuring device and forming the inlet.