Curved-Path Check Valve Structure for Lower Pressure Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing check valves, such as those described in Patent Document 1, suffer from significant pressure loss, which affects their efficiency in fluid flow applications.
Innovation Solution
The proposed check valve is an angle-type design where the inflow and outflow directions intersect, featuring a curved flow path from the inflow port to the outflow port. This design includes a mobile body with a valve element that can move between open and closed positions, supported by a seat, and an inner wall surface that curves towards the outlet pipe body as the fluid approaches the seat, reducing pressure loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conventional check valve design is used, then the valve structure is simple, but pressure loss is significant
Solution Approach 1:
The flow path in the valve body is designed with curved surfaces instead of straight or angular transitions. Specifically, the flow path includes a first curved surface and a second curved surface that guide the fluid smoothly from the inlet to the outlet, eliminating sudden direction changes and reducing turbulence-induced pressure loss.
2Loss of energy
If the inflow port and seat are arranged parallel, then the curved flow path is optimized, but the valve body complexity increases
Solution Approach 1:
The curved flow path design is applied specifically to critical regions where fluid direction changes occur, such as near the seat and outlet port, while other portions of the valve body maintain simpler geometries. This localized optimization reduces overall pressure loss without requiring complete redesign of the entire valve structure.
Data Source
AI summary
The check valve includes: an inlet pipe body part (23) which includes an inflow port (23b); an outlet pipe body part (25) which includes an outflow port (25b); a mobile body (a reciprocative body (2)). Insides of the inlet pipe body part, the outlet pipe body part, and the valve body (12) are communicated to form a curved flow path from the inflow port toward the outflow port. The reciprocative body includes a valve element (6). The seat (23c) is arranged so as to be capable of supporting the valve element and the inflow port and the seat are arranged parallel to each other. An inner wall surface (23y) on an outside-corner side of the flow path in the inlet pipe body part is formed so as to curve toward a side of the outlet pipe body part as a position gets closer from the inflow port to the seat.