Integrated Valve Body With Injector Separation Against Backflow
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Solution Overview
Problem
Conventional valves are unsuitable for preventing contamination between line areas of different risk categories, requiring additional separation elements that increase assembly effort and risk of leakage, and fail to prevent backflow of fluids against the main flow direction.
Innovation Solution
A valve body with an integrally formed injector isolating section that separates line areas without additional separating elements, featuring a one-piece design with the valve inlet, valve outlet, and valve seat, and a free-jet injector separation section that forms a vacuum barrier to prevent backflow and contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional valves are used at the transition between pipe sections of different hazard categories, then the valve can control fluid flow, but contamination protection is insufficient and additional separating elements are required
Solution Approach 1:
The patent combines the valve body with an integrally formed injector isolating section to create a single unified component. This merging eliminates the need for separate additional separating elements that would otherwise be required to protect against contamination between pipe sections of different hazard categories, thereby maintaining high reliability while reducing device complexity
Solution Approach 2:
The valve body is designed to perform multiple functions simultaneously: it controls fluid flow through the valve seat and closing element, and also provides contamination protection through the integrated injector isolating section. This multi-functionality eliminates the need for separate dedicated separating elements, reducing overall system complexity while maintaining adequate contamination protection
2Reliability
If additional separating elements are positioned at the transition between pipe sections, then contamination protection is improved, but assembly effort and risk of leakage increase
Solution Approach 1:
By integrating the injector isolating section directly into the valve body as a single piece, the patent eliminates the need for separate assembly steps involving additional separating elements. The injector isolating section is formed integrally with the valve body, requiring no separate connections or assembly operations, thereby reducing assembly effort while maintaining contamination protection
Solution Approach 2:
The patent extracts the separating function from a separate component and integrates it directly into the valve body structure. The injector isolating section is not an add-on element but an intrinsic part of the valve body, eliminating the need for separate assembly operations and reducing potential leakage points at connection interfaces
3Reliability
If additional separating elements are connected to pipe sections via joints, then contamination protection is improved, but the number of connection points and potential leakage risks increase
Solution Approach 1:
The patent merges the separating function into the valve body itself through the integrally formed injector isolating section. This eliminates the need for separate connection points between additional separating elements and pipe sections, thereby reducing the number of potential leakage points while maintaining adequate contamination protection between pipe sections of different hazard categories
4Ease of operation
If conventional valves are opened, turbulence can occur between fluids on either side of the valve seat, causing backflow against the main flow direction
Solution Approach 1:
The injector isolating section acts as an intermediary structure between the upstream and downstream sides of the valve seat. When the valve is opened, this isolating section with its specific geometry (including the narrowing towards the outlet side) controls the fluid flow transition, preventing turbulence and backflow while still allowing normal operation of the valve
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
The solution reduces assembly effort and leakage risk while ensuring high contamination safety by eliminating the need for additional connections and preventing fluid backflow through the injector separation section's vacuum barrier and backflow protection mechanism.
Implementation Method 1
a free-jet injector separation section that forms a vacuum barrier to prevent backflow and contamination
Implementation Method 2
a free-jet injector separation section that forms a vacuum barrier to prevent backflow and contamination
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Valve body for use as part of a valve comprising a flow channel (4) and a valve seat (5) arranged in the flow channel (4), wherein the flow channel (4) has an integrally molded injector separating section (6).