Valve Flow Path Rectification for Lower Pressure Loss
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Solution Overview
Problem
The linear cutting of block-shaped valve bodies results in pressure loss when forming channels, as the intersections of these channels within the valve main body create bent channels that hinder fluid flow.
Innovation Solution
A valve device with a rectification member placed in the bent portions of communication holes, featuring a corner portion with an inner circumferential surface bent or curved at an angle larger than the bent portion, reducing fluid turbulence and pressure loss by allowing smoother fluid flow through a passage within the rectification member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If linear cutting is used to form channels in the valve main body, then manufacturing simplicity is improved, but pressure loss increases due to bent channel intersections
Solution Approach 1:
The communication hole is divided into multiple sections: a first communication hole extending from the valve chamber to the bent portion, and a second communication hole extending from the bent portion to the outside. This segmentation allows each section to be optimized independently, with the bent portion positioned at the intersection to minimize interference with fluid flow while maintaining manufacturing simplicity through linear cutting methods.
Solution Approach 2:
The communication hole is designed to extend in multiple directions (dimensions) from the valve chamber to the outside. By utilizing three-dimensional spatial arrangement, the channel can achieve a more direct path that reduces bending and turbulence, thereby decreasing pressure loss while still allowing for straightforward linear cutting fabrication.
2Adaptability or versatility
If bent portions are created in communication holes to connect channels, then channel connectivity is improved, but fluid flow efficiency deteriorates due to pressure loss
Solution Approach 1:
The bent portion is specifically positioned at the intersection of communication holes where channel connectivity is required. The local geometry is optimized by controlling the bending angle and radius to minimize turbulence and pressure loss, while still achieving the necessary channel connection. This localized optimization maintains fluid flow efficiency while ensuring proper channel connectivity.
Data Source
AI summary
A valve device capable of reducing pressure loss is provided. The valve device is provided with a valve main body having a valve chamber in which a valve body is arranged, inflow outlets, and communication holes communicating the valve chamber and the inflow outlets, and a rectification member arranged in the communication hole. The communication hole has a bent portion where the center line of the communication hole is bent, and the rectification member is arranged in the bent portion and has a corner portion formed by an inner circumferential surface bent or curved at an angle larger than the angle of the bent portion.