Intermediate Piece Check Valve for Dispensing Reflux Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing intermediate pieces for connecting dispensing elements to storage containers fail to prevent uncontrolled reflux and mixing of flowable components, leading to contamination and inoperability of dispensing apparatuses.
Innovation Solution
Incorporation of a check valve in the intermediate piece, configured with a spring element and valve seat, which closes the passage when dispensing pressure is reduced, preventing reflux and mixing by maintaining a fluid-tight seal until dispensing pressure is applied.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a check valve is added to prevent reflux, then reliability is improved, but device complexity increases
Solution Approach 1:
The check valve is integrated directly into the intermediate piece structure, merging the reflux prevention function with the connection component. The valve seat and head are formed as part of the intermediate piece's passage structure, eliminating the need for separate valve components and reducing overall device complexity while maintaining reliability.
Solution Approach 2:
The check valve operates automatically based on pressure differential without external control. The spring element and head self-regulate the passage closure based on dispensing pressure conditions, preventing reflux without requiring external actuation or complex control mechanisms.
2Object-affected harmful factors
If the passage is closed by check valve when pressure is reduced, then harmful factors are reduced, but ease of operation worsens
Solution Approach 1:
The check valve automatically opens when dispensing pressure is reapplied after an interruption, without requiring manual intervention. The pressure differential naturally overcomes the spring force and opens the passage, allowing easy resumption of dispensing operation while maintaining protection during pressure loss.
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
Effectively prevents reflux and mixing of components, ensuring the separation and controlled dispensing of flowable components, maintaining the integrity of the dispensing apparatus and preventing local inhomogeneities due to viscosity differences.
Implementation Method 1
The spring element exerts an opening pressure on the head and presses the head into the first or the second valve seat such that the first or the second passage can be closed in a fluid tight manner
Implementation Method 2
If no dispensing pressure is present then no pressure or merely the opening pressure of the spring element acts on the head and the head closes the first or the second valve seat
Data Source
AI summary
An intermediate piece includes an upper element and a lower element, and a check valve including a head and a spring element exerting an opening pressure on the head. The check valve is arranged between the upper element and the lower element at the first or second passage and is configured such that a first or second passage can be closed by the check valve and such ay that the first or second passage is opened when a dispensing pressure counteracting the opening pressure is applied at least at the respective flowable component.