Automatic Drain With Orifice Pin Bleed Channel
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Solution Overview
Problem
Existing automatic drains face challenges in miniaturization due to difficulties in manufacturing small-diameter orifices, which affect operation characteristics and manufacturing yield, and are prone to errors in assembling workability.
Innovation Solution
The design incorporates a bleed channel formed by an orifice pin in a bleed hole, allowing precise control of the channel area, enabling efficient liquid discharge even with a small piston chamber capacity, thus improving operation characteristics and reducing size while enhancing assembling workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the inner diameter of the orifice is reduced to decrease the flow rate of compressed air, then the length of time required for discharging compressed air increases, but the length of time required for discharging liquid increases, resulting in incomplete liquid discharge
Solution Approach 1:
The discharge path is segmented into two separate paths: one for compressed air (through the orifice) and one for liquid (through the discharge hole). This allows independent control of discharge timing for gas and liquid, enabling the liquid to be fully discharged while the air discharge rate is controlled to extend the overall discharge duration.
2Volume of moving object
If the capacity of the piston chamber is reduced to miniaturize the automatic drain, then the size is reduced, but the length of time required for discharging liquid increases
Solution Approach 1:
The invention utilizes pneumatic pressure from compressed air to drive the liquid discharge process. The compressed air piston provides sufficient force to rapidly discharge liquid through the discharge hole, compensating for the reduced piston chamber capacity and maintaining short discharge times despite miniaturization.
3Productivity
If a small-diameter orifice is formed on the drain valve to control compressed air flow, then the flow rate is reduced, but manufacturing precision and assembling workability deteriorate
Solution Approach 1:
The invention introduces a separate discharge hole and discharge path as an intermediary mechanism for liquid removal. This decouples the liquid discharge function from the air flow control orifice, allowing the orifice to be optimized for air flow control while the discharge hole handles liquid removal, improving both manufacturing precision and overall system performance.
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 a compact automatic drain with improved operation characteristics and reduced manufacturing errors, ensuring efficient liquid discharge and enhanced assembling workability.
Implementation Method 1
Being subjected to the force of this incoming air, the piston in the piston chamber drives the drain valve
Implementation Method 2
The upward and downward movement of the float causes the vent valve to open and close
Data Source
AI summary
A drain hole for connecting a discharge hole and the inside of a collection container to each other is formed in a valve seat member. A float support is provided with a cylinder portion in which a piston is incorporated in a slidable manner. An vent valve for opening and closing a vent hole by means of a float is provided to the float support. A drain valve which operates between a closing position at which the drain valve closes the drain hole and an open position at which the drain valve opens the drain hole is provided to the piston. A bleed channel for connecting a piston chamber and the discharge hole to each other is formed by an orifice pin mounted in a bleed hole provided to the drain valve.