Gasification Reactor Membrane Wall Cooling and Load Management
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Solution Overview
Problem
Gasification reactors face challenges in cooling and load management due to extreme temperature differences, leading to differential expansion issues, and existing solutions require additional circuits and space, increasing costs.
Innovation Solution
The use of coolant inlet and outlet lines positioned in a specific plane within the pressure vessel to create a fixed point for load distribution, where the membrane wall is supported by these lines, allowing for efficient cooling and expansion management without stretching, and utilizing conical membrane basket areas with separate cooling water inlets and outlets, with some tubes acting as both coolant carriers and support elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If separate cooling circuits are added to divert load from membrane walls, then load management is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the cooling circuit with the load support function by positioning coolant inlet and outlet lines in a specific plane within the pressure vessel. These lines serve dual purposes: cooling the membrane wall and providing structural support to absorb thermal expansion loads, thereby eliminating the need for separate support structures and reducing overall device complexity.
Solution Approach 2:
The coolant inlet and outlet lines are designed to perform multiple functions simultaneously: they serve as cooling channels for the membrane wall, as structural support elements to absorb thermal expansion, and as fixed reference points for load distribution. This multi-functionality reduces the number of components needed and simplifies the overall system design.
2Temperature
If additional cooling circuits are installed to manage thermal expansion, then thermal management is improved, but space requirements and cost increase
Solution Approach 1:
The patent merges the thermal management function with the existing coolant inlet and outlet lines by positioning them in a specific plane that also serves as a load distribution plane. This eliminates the need for additional cooling circuits and reduces the overall space requirements within the pressure vessel.
Solution Approach 2:
The coolant lines are designed to serve dual purposes: thermal management through cooling and structural support through load absorption. This multi-functionality reduces the need for separate components and minimizes the space required for thermal management systems.
3Stability of the object's composition
If membrane wall is supported by coolant lines in a fixed plane, then differential expansion is reduced, but structural complexity increases
Solution Approach 1:
The coolant inlet and outlet lines are positioned in a specific plane that serves as both a cooling distribution plane and a structural support plane. This fixed plane provides stable reference points for load distribution and absorbs differential expansion forces, while the lines themselves perform both cooling and support functions, reducing overall structural complexity.
Solution Approach 2:
The coolant lines act as intermediary elements that mediate between the thermal field and the structural field. They transfer thermal loads from the membrane wall to the pressure vessel through a fixed reference plane, thereby managing differential expansion without requiring complex separate support structures.
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
This configuration effectively manages temperature-induced expansions, reduces the need for additional circuits, and optimizes load transfer, providing a cost-effective and space-efficient cooling solution for gasification reactors.
Implementation Method 1
the expansions occurring due to the extreme temperature differences are intercepted, since there are no or only small expansion differences in the fixed point plane
Implementation Method 2
tubes of the membrane wall are attached to a ring distributor arranged below and/or above the heating surfaces, the ring distributor being connected to the coolant inlet lines or the mixture outlet lines
Implementation Method 3
conical membrane basket areas with separate cooling water inlets and outlets, with some tubes acting as both coolant carriers and support elements
Data Source
AI summary
The invention relates to a gasification reactor for producing crude gas containing CO or H2, comprising a pressure vessel (2) and a reaction chamber (4) formed by a membrane wall (3) with cooling pipes, wherein an annular space is formed between the inner wall of the pressure vessel (2) and the membrane wall (3), wherein elements, such as the burner (17) or the like are provided which penetrate the wall of the pressure container and the membrane wall horizontally substantially on the same plane (18). The aim of the invention is in particular to provide a cooling screen inside the pressure container, said cooling screen comprising conical areas for the discharge of gas or slag, wherein the mounting or connection between the cooling sludge and the pressure container (load removal) is optimized because differential expansions are prevented. Said aim is achieved by providing a support which directly or indirectly acts upon the coolant inlet ducts (5) or mixture outlet ducts (14) in order to remove the load of the membrane wall (3).