Exhaust Gas Purifying Device with Integrated Bypass
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Solution Overview
Problem
Existing exhaust gas purifying systems for marine vessels are complex to install and require significant space, often overloading catalytic elements and lacking in easy installation and compact design, especially in older vessels.
Innovation Solution
An exhaust gas purifying device with a compact design featuring a casing with integrated first and second exhaust gas passages, a passage joining part, and a control unit for automatic or manual regulation, allowing for easy installation and bypass functionality to manage temperature and flow, preventing overloading of catalytic elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional exhaust gas purifying system with separate bypass line is used, then the catalytic element can be protected from overloading, but the system becomes complex and requires significant installation space
Solution Approach 1:
The patent merges the bypass passage with the main exhaust gas passage by arranging the bypass passage inside a cavity of the casing that contains the main passage. This integration eliminates the need for separate external bypass lines and complex valve mechanisms, while still providing the functionality to divert exhaust gas flow around the catalytic element when needed.
Solution Approach 2:
The bypass passage is nested within the cavity of the casing that houses the main exhaust gas passage. This nested arrangement allows the bypass functionality to be contained within the existing structure of the purifying device, reducing overall system complexity and space requirements while maintaining the ability to protect the catalytic element.
2Reliability
If a traditional exhaust gas purifying system with separate bypass line is used, then the catalytic element can be protected from overloading, but the installation space increases
Solution Approach 1:
The bypass passage is merged with the main exhaust gas passage structure by positioning it within the casing cavity. This consolidation eliminates the need for additional external bypass lines and associated components, significantly reducing the overall installation space while maintaining the protective function of the bypass.
Solution Approach 2:
The bypass passage is nested inside the cavity of the casing that already contains the main exhaust gas passage. This nested configuration allows the bypass functionality to share the same spatial envelope as the main passage, minimizing the additional volume required and enabling compact installation in marine vessels.
3Object-affected harmful factors
If existing exhaust gas purifying systems are installed in older marine vessels, then emission control can be achieved, but the installation becomes difficult and space-consuming
Solution Approach 1:
The bypass passage is merged with the main exhaust gas passage by integrating it within the same casing structure. This unified design simplifies installation in older vessels as it requires fewer separate components and connections, reducing installation complexity and space requirements while maintaining effective emission control through the catalytic element.
Solution Approach 2:
The bypass passage is nested within the cavity of the casing housing the main exhaust gas passage. This compact nested arrangement facilitates easier installation in older marine vessels with limited space, as the entire purifying device with integrated bypass functionality can be installed as a single compact unit without requiring extensive modifications to existing exhaust systems.
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 provides a compact, easy-to-install exhaust gas purifying system that effectively manages temperature and flow, preventing overloading of catalytic elements and allowing for seamless integration in marine vessels, including older ones, without sacrificing valuable space.
Implementation Method 1
a SCR (selective catalytic reduction) converter element for the catalytic conversion of nitrogen oxides with a reducing agent, such as, for example, a hydrocarbon or a urea and water solution
Data Source
Figure 1
Figure 2
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AI summary
An exhaust gas purifying device (2) comprising a purifying unit (12) having a casing (13) and a first exhaust gas passage (5) arranged inside the casing (13), wherein the first exhaust gas passage (5) comprises one or more exhaust gas purifying elements (9, 10)., A second exhaust gas passage (6) is arranged as an integrated part of the purifying unit (12) within a cavity (21 ) thereof, and a passage joining part (7) is arranged as an integrated part of the purifying unit (12), in which passage joining part (7) the first and second exhaust gas passages (5, 6) are merged in a common passage for providing a common exhaust gas outlet (8) of the purifying device (2). An exhaust gas purifying system comprising the exhaust gas purifying device (2) and a flow passage switching device is provided.