Liquid Hydrogen Quick Receptacle With Cryogenic Seals
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Solution Overview
Problem
Conventional adapters and connectors for liquid hydrogen storage and transportation face challenges with temperature changes and foreign substance contamination, leading to inefficiencies and safety issues when handling liquefied hydrogen.
Innovation Solution
A quick-connecting receptacle system with an upper and lower receptacle, featuring a movable cylinder member and cryogenic seals, allows for stable storage and discharge of liquid and gaseous hydrogen, preventing loss and denaturation at cryogenic temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional adapters and connectors are used to connect transfer pipe and storage tank, then connection is achieved, but temperature changes occur and foreign substances may flow into liquid hydrogen
Solution Approach 1:
The connector is divided into an upper receptacle connected to the transfer pipe and a lower receptacle connected to the storage tank, with a cylinder member separating the liquid hydrogen passage from the gaseous hydrogen passage. This segmentation prevents foreign substances from contaminating liquid hydrogen while maintaining connection stability.
Solution Approach 2:
A cylinder member with seals acts as an intermediary between the liquid hydrogen and gaseous hydrogen passages. The upper seal and lower seal on the cylinder member prevent foreign substances from the gaseous hydrogen side from contaminating the liquid hydrogen, while allowing temperature equilibrium to be maintained.
2Ease of operation
If transfer pipe and storage tank are exposed to atmosphere during connection, then connection is achieved, but foreign substances may flow into liquid hydrogen
Solution Approach 1:
The upper receptacle and lower receptacle are designed with aligned connection portions that automatically connect when brought together. The cylinder member is pre-positioned with seals that prevent foreign substance contamination from the moment of connection, eliminating the need for complex sealing operations.
Solution Approach 2:
By separating the liquid hydrogen and gaseous hydrogen passages with the cylinder member, the system allows atmospheric exposure during connection without contaminating the liquid hydrogen, as the sealed cylinder member prevents foreign substances from entering the liquid hydrogen passage.
3Quantity of substance
If liquid hydrogen is stored in contact with atmospheric components, then storage is achieved, but temperature changes occur
Solution Approach 1:
The cylinder member with upper and lower seals acts as a thermal barrier and intermediary, separating the liquid hydrogen storage space from atmospheric components. This allows maximum hydrogen storage while preventing temperature changes from atmospheric exposure.
Solution Approach 2:
The sealed cylinder member creates an inert environment between the liquid hydrogen and atmospheric components, preventing heat transfer and temperature changes that would occur with direct atmospheric contact, while allowing full storage capacity.
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 system enables efficient and safe storage and discharge of hydrogen by ensuring stable connections and preventing hydrogen loss, even at extreme temperatures, thus enhancing the handling and utilization of liquefied hydrogen.
Implementation Method 1
an upper seal and a lower seal formed by cryogenic sealing so that denaturation does not occur even when in contact with liquid hydrogen
Data Source
AI summary
The present disclosure discloses a quick-connecting receptacle for a liquid hydrogen storage tank. The quick-connecting receptacle comprises: a storage tank for storing liquid hydrogen; and a receptacle connecting an external transmission pipe and the storage tank so that liquid hydrogen introduced through the external transmission pipe is stored in the storage tank. The receptacle includes an upper receptacle connected to a lower end portion of the transmission pipe and a lower receptacle connected to an upper portion of the storage tank. The lower receptacle includes a cylinder member accommodated therein, and as the cylinder member moves up and down, liquid hydrogen or gaseous hydrogen is stored in the storage tank or liquid hydrogen or gaseous hydrogen is discharged from the storage tank to outside.