Twin Tube Excimer Lamp Water Quality Measurement Device
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Solution Overview
Problem
Existing water quality measurement devices using UV light sources face issues with reduced irradiation efficiency due to diffused UV light and complex channel configurations, leading to inefficient oxidation of sample water.
Innovation Solution
A water quality measurement device with a simplified channel configuration, utilizing a twin tube excimer lamp where sample water flows through the inner tube and is irradiated with UV light from the periphery, enhancing irradiation efficiency and stabilizing illuminance, along with a shielding portion to prevent light leakage and a heat dissipation system to maintain optimal detection conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light source is located inside and sample water is located outside the light source, then the UV light can irradiate the sample water, but the irradiation efficiency is lowered due to light diffusion and the channel configuration becomes complicated
Solution Approach 1:
The patent inverts the conventional arrangement by placing the sample water inside the light source (within the excimer lamp's discharge tube) rather than outside. This inversion allows the sample water to be directly exposed to UV light generation, eliminating the need for complex external channel configurations and improving irradiation efficiency.
Solution Approach 2:
The sample water channel is nested within the excimer lamp's discharge tube structure. The inflow and outflow pipes are integrated into the lamp's internal geometry, creating a compact nested configuration that simplifies the overall device structure while maintaining effective UV irradiation.
2Ease of operation
If a channel tube different from the lamp is inserted into the lamp, then the sample water can pass through, but the configuration becomes complicated and a gap is formed between the channel tube and the lamp, lowering irradiation efficiency
Solution Approach 1:
The patent merges the sample water channel function with the lamp's discharge tube structure. The discharge tube itself serves as the sample water passage, eliminating the need for separate channel tubes and their associated mounting complexities. This integration ensures direct contact between sample water and UV light without gaps.
3Illumination intensity
If a channel tube different from the lamp is inserted into the lamp, then the sample water can be irradiated, but a gap is formed between the channel tube and the lamp, lowering the irradiation efficiency of UV light
Solution Approach 1:
Instead of inserting a separate channel tube into the lamp, the patent inverts the approach by making the lamp's discharge tube itself the sample water channel. This eliminates the gap problem entirely, as there is no interface between separate components, ensuring maximum UV light irradiation efficiency.
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 device achieves improved UV light irradiation efficiency and simplified channel design, allowing for efficient oxidation and accurate detection of sample water degradation products with reduced mechanical errors and faster measurement cycles.
Implementation Method 1
one method of oxidizing sample water in a water quality measurement device is a so-called wet oxidation method in which sample water is oxidized by using UV radiation
Implementation Method 2
a twin tube excimer lamp which produces a discharge between a pair of electrodes to emit UV light
Data Source
AI summary
A water quality measurement device 1 includes a twin tube excimer lamp 2. The inflow pipe 3 is connected to one end of the inner tube 21 of the excimer lamp 2, and the outflow pipe 4 is connected to the other end of the inner tube 21 of the excimer lamp 2. The detector 5 that measures the conductivity of sample water is interposed in the outflow pipe 4. In the water quality measurement device 1, sample water sequentially flows through the inflow pipe 3, the inner tube 21 of the excimer lamp 2, and the outflow pipe 4. Hence, the channel in the water quality measurement device 1 can be simplified. Additionally, the sample water is oxidized by being irradiated with UV light in the inner tube 21 of the excimer lamp 2. Hence, it is possible to irradiate the sample water with UV light from the excimer lamp 2 efficiently.