Rotary Scraper for Gas Hydrate Reactor Wall Deposition
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Solution Overview
Problem
Conventional gas hydrate reactors face inefficiencies due to gas hydrate particles attaching and growing on the inner walls, hindering fluid flow and heat transfer, which reduces reaction efficiency and increases costs.
Innovation Solution
A gas hydrate reactor with a rotationally driven scraper mounted on a center axis, equipped with blades and a stirring apparatus, effectively removes gas hydrate particles from the inner surfaces of the reactor and upper cover, promoting water and gas mixing and heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If gas hydrate reaction is carried out in a conventional reactor, then gas hydrate particles are produced, but gas hydrate particles attach and grow on the inner walls, hindering fluid flow and heat transfer
Solution Approach 1:
The patent extracts and removes the harmful accumulation of gas hydrate particles from the reactor inner walls using a scraper mechanism. The scraper continuously removes deposited hydrate particles, preventing them from forming insulating layers that would hinder heat transfer, thus maintaining reliable thermal contact between the reaction mixture and reactor walls.
Solution Approach 2:
The patent introduces a scraper as an intermediary mechanical component between the gas hydrate reaction system and the reactor walls. This intermediary device actively intervenes to prevent the direct attachment and growth of hydrate particles on the walls, thereby maintaining heat transfer efficiency without interfering with the overall reaction process.
2Quantity of substance
If gas hydrate particles attach on the inner walls, then production continues, but fluid flow is hindered and reaction efficiency decreases
Solution Approach 1:
The scraper continuously extracts and removes gas hydrate particles from the inner walls, preventing the formation of thick deposits that would obstruct fluid flow. By maintaining clear flow paths, the system sustains high reaction efficiency and productivity throughout the operation cycle.
Solution Approach 2:
The scraper operates continuously or periodically to maintain the reactor inner surfaces free of hydrate deposits. This continuous removal action ensures that fluid flow and heat transfer remain uninterrupted, sustaining high reaction efficiency throughout the gas hydrate production process.
3Quantity of substance
If gas hydrate accumulates on reactor walls, then reaction proceeds, but cooling cost increases due to reduced heat transfer
Solution Approach 1:
By continuously removing gas hydrate deposits from the reactor walls, the scraper prevents the formation of thermal insulation layers. This maintains efficient heat transfer from the reaction mixture to the cooling system, thereby reducing the energy consumption of the stationary cooling apparatus.
Solution Approach 2:
The patent converts the potentially harmful effect of hydrate deposition (which would increase cooling costs) into a benefit by using the scraper to harvest these deposits. The removed hydrate can be utilized as product, while the clean walls maintain efficient heat transfer, reducing cooling energy consumption.
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 scraper system enhances gas hydrate production rates and prevents heat transfer hindrance, maintaining high cooling efficiency and reducing energy costs by preventing gas hydrate deposition on reactor walls.
Implementation Method 1
a gas hydrate reactor having a scraper, capable of removing gas hydrate particles, which is attached on an inner wall of the reactor
Implementation Method 2
a stirring apparatus 5 to increase the reaction rate between water and gas
Implementation Method 3
a separate cooling jacket 6 may be provided to surround the outside of the reactor 3. The cooling jacket 6 is connected to a refrigerant supplying portion 7 so that a refrigerant can be continuously supplied
Data Source
AI summary
The present invention relates to an apparatus comprising a reactor body to which gas and water are supplied to create a gas hydrate; an upper cover which is engaged to an upper portion of the reactor body, a scraper mounted rotationally within the reactor body, and a motor for providing a driving force to the scraper. It is possible to remove gas hydrate particles attached to at least one of an inner surface of the reactor body and an inner surface of the upper cover, by a rotary driving of the scraper. According to the invention, it is possible to prevent a material hindering a heat transfer by attaching on a wall surface of the reactor, through a process of scraping out gas hydrate particles, when the scraper which is rotationally driven about a center axis of the reactor is close to the inner surface of the reactor.


