Purge Nozzle Gas Flow Control for Particle Removal
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Solution Overview
Problem
Existing purge systems fail to effectively remove particles adhering to the gas introduction port of containers and the surroundings of the purge nozzle, leading to contamination and inefficient gas usage, particularly during non-use states.
Innovation Solution
A system with a purge device and controller that blows purge gas through the nozzle before connecting with the container's gas introduction port, ensuring particles are removed from both the nozzle and container surfaces, and adjusts flow rates for efficient cleaning and purging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the purge gas is supplied through the purge nozzle before the container is carried to the purge port, then particles inside the purge nozzle are removed, but particles adhering to the gas introduction port in the container or on the surroundings of the purge nozzle remain
Solution Approach 1:
The purge gas is supplied in advance before the container is carried to the purge port, performing preliminary cleaning of particles inside the purge nozzle. This preliminary action removes particles that would otherwise contaminate the container during connection.
Solution Approach 2:
Instead of only cleaning the purge nozzle from the inside, the invention directs the purge gas to also reach the gas introduction port and surrounding areas by utilizing the space between the purge nozzle and the container bottom surface, effectively cleaning areas that would traditionally be overlooked.
2Reliability
If the purge nozzle blows purge gas continuously to prevent particle adhesion in non-use state, then particle adhesion is prevented, but excessive consumption of purge gas occurs
Solution Approach 1:
The purge gas is supplied periodically or on-demand based on the operational state of the purge device. During non-use states, continuous blowing is avoided, and gas supply is activated only when a container is being conveyed or positioned, thereby preventing particle adhesion when needed while avoiding excessive consumption during idle periods.
Solution Approach 2:
The purge gas flow rate and supply timing are dynamically adjusted according to the operational state. The system transitions from a static continuous flow mode to a dynamic on-demand mode, optimizing both particle prevention and gas consumption based on real-time conditions.
3Measurement precision
If the container is conveyed to the purge position before purge gas blowing starts, then positional accuracy is maintained, but particles may adhere to surfaces during the conveyance and connection process
Solution Approach 1:
The purge gas blowing is initiated before the container reaches the final purge position during conveyance. This timing allows particles to be removed from the purge nozzle and surrounding areas while the container is still approaching, preventing adhesion during the connection process without compromising final positional accuracy.
Solution Approach 2:
The purge gas flow is maintained continuously from the start of conveyance through the connection process, ensuring uninterrupted particle removal coverage. This continuous action bridges the gap between conveyance and connection, maintaining cleanliness throughout the entire process.
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 approach effectively removes particles from the container and nozzle surfaces, reduces gas consumption, and maintains high-purity gas flow, enabling efficient and reliable purging with accurate positional control.
Implementation Method 1
a purge controller which is configured to control the purge nozzle to blow the purge gas in a cleaning state of the purge device, when the purge nozzle is not connected with the gas introduction port
Implementation Method 2
The purge device supplies the purge gas to the inside of the container through the purge nozzle
Data Source
Figure 1(A)~1(B)
Figure 2(A)~2(B)
Figure 3
AI summary
[Problem] Provided is a purge device capable of removing particles adhering to a gas introduction port in a container or on the surroundings of a purge nozzle. [Solution] A purge device (4) includes a nozzle (31) that is able to blow a gas (G1), and a purge controller (34) that controls the nozzle to blow the gas therethrough in a state in which a bottom surface (Fb) of a container (F) to be purged faces the nozzle.