Warp Sizing Apparatus Flow Distribution for Reduced Pump Capacity
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Solution Overview
Problem
Existing warp sizing apparatuses require large-capacity pumps to supply sufficient sizing liquid to the sizing liquid supply device, leading to high device and running costs due to the difficulty in flowing sizing liquid to the second branch pipe side without a flow adjustment valve, resulting in inefficient liquid distribution.
Innovation Solution
Incorporating a flow regulating valve in the first branch pipe of the supply pipe and a pump capable of adjusting delivery amount, allowing for throttling the flow rate to the sizing tank side while increasing the flow rate to the sizing liquid supply device side, thereby reducing the need for a large-capacity pump.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a large-capacity pump is used to supply sufficient sizing liquid to the sizing liquid supply device, then the flow rate to the sizing liquid supply device is improved, but device cost and running cost increase
Solution Approach 1:
The supply pipe is divided into a main pipe and two branch pipes (first branch pipe to sizing tank, second branch pipe to sizing liquid supply device). A flow regulating valve is installed in the first branch pipe to independently control flow distribution, allowing a small-capacity pump to efficiently supply sufficient liquid to the sizing liquid supply device without requiring a large-capacity pump
Solution Approach 2:
The flow regulating valve is specifically positioned in the first branch pipe to locally adjust flow characteristics. This allows precise control of flow rate to the sizing tank side while maintaining adequate flow to the sizing liquid supply device, optimizing pump size selection and reducing overall system cost
2Ease of operation
If a flow adjustment valve is provided in the second branch pipe to adjust flow rate ratio, then flow distribution is improved, but the flow rate to the sizing liquid supply device decreases due to throttling
Solution Approach 1:
Instead of placing the flow regulating valve in the second branch pipe (supplying the sizing liquid supply device) as in conventional designs, the valve is inverted to the first branch pipe (supplying the sizing tank). This inversion prevents throttling of the critical flow path to the sizing liquid supply device while still enabling flow distribution control, maintaining high flow rate where needed
Solution Approach 2:
The flow regulating valve acts as an intermediary control element in the first branch pipe, mediating flow distribution between the sizing tank and sizing liquid supply device. By controlling flow removal in the first branch, it indirectly optimizes flow availability to the second branch without directly throttling it
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 configuration enables efficient supply of sizing liquid to both the sizing tank and supply device without increasing costs, allowing for flexible adjustment of flow rates based on operational conditions, thus reducing device and running costs.
Implementation Method 1
a pump for delivering the sizing liquid is connected to the sizing tank and the sizing liquid supply device through a supply pipe
Implementation Method 2
the first branch pipe is provided with a flow regulating valve... adjusts the flow rate in a direction of throttling (reducing) the flow rate
Implementation Method 3
the sizing liquid is supplied from the sizing liquid supply device to form a sizing liquid pool on the circumscribed position
Data Source
AI summary
A warp sizing apparatus (1) including: a sizing tank (3); a sizing roll (11) on which a warp sheet (T) can be wound; a squeeze roll (13) circumscribed around the sizing roll such to create a wedge area between the rolls; a sizing liquid supply device (20) for supplying the sizing liquid (S) to said circumscribed position of the sizing roll and the squeeze roll; and a supply pipe (32) in which the sizing liquid (S) delivered from a pump (P) is supplied to the sizing tank and the sizing liquid supply device (20). The supply pipe (32) includes a main pipe (33) with one end connected to the pump (P), and a first branch pipe (34) and a second branch pipe (35) branched from the main pipe (33), the first branch pipe (34) is connected to the sizing tank (3), and the second branch pipe (35) is connected to the sizing liquid supply device (20). The first branch pipe (34) is provided with a flow regulating valve (36).