Liquid supply system
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Solution Overview
Problem
Conventional liquid supply systems for ultracold liquids like liquid nitrogen and liquid helium face challenges in space efficiency and cooling efficiency due to pulsations caused by intermittent liquid supply, which can lead to pressure-related issues and reduced cooling performance.
Innovation Solution
A liquid supply system utilizing a dual pump chamber mechanism within a bellows structure that allows continuous liquid supply by expanding and contracting both pump chambers, eliminating the need for external dampers and enhancing cooling efficiency through a sealed space with gas or liquid buffering to manage pressure variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a damper is provided to the supply passage to suppress pressure variation, then pulsations are reduced, but extra installation space is required and heat exchange is reduced causing decreased cooling efficiency
Solution Approach 1:
The patent combines the damper function with the pump chamber by making the bellows structure itself serve as both the pump chamber and the damper. The first and second pump chambers are formed within the bellows, eliminating the need for a separate external damper component while maintaining pressure stabilization functionality.
Solution Approach 2:
The bellows structure is designed to perform multiple functions simultaneously: it acts as the pump chamber for liquid delivery, the damper for pressure stabilization, and the sealed space for thermal insulation. This multi-functionality eliminates the need for separate components and reduces overall system space requirements.
2Stability of the object's composition
If a damper is provided to suppress pressure variation, then pulsations are reduced, but the system occupies extra installation space
Solution Approach 1:
The damper functionality is merged into the pump chamber structure. The bellows expands and contracts to both pump liquid and suppress pressure variations, eliminating the need for a separate external damper component and reducing overall system footprint.
Solution Approach 2:
The first and second pump chambers are nested within the bellows structure, with the bellows itself forming the chambers through its expansion and contraction. This nested arrangement integrates multiple functions within a single compact structure.
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 achieves continuous liquid supply, reduces pulsations, and increases cooling efficiency while saving space, preventing damage from pressure fluctuations and maintaining pump function stability.
Implementation Method 1
a bellows 530 disposed to enter the second vessel 520... when the shaft 550 reciprocates, the bellows 530 expands and contracts
Implementation Method 2
a sealed space with gas or liquid buffering to manage pressure variations
Data Source
Figure 1
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AI summary
The present invention provides a space-saving liquid supply system with increased cooling efficiency. A first pump chamber P1 is formed by an outside of a bellows 130 in a second vessel 120 and the first pump chamber P1 is provided with a first intake port 121 for taking the liquid in the first vessel 110 into the first pump chamber P1 and a first delivery port 122 for delivering the taken-in liquid L from inside the first pump chamber P1 into a supply passage K1. A second pump chamber P2 is formed by a sealed space in the bellows 130 and the second pump chamber P2 is provided with a second intake port 123 for taking the liquid L in the first vessel 110 into the second pump chamber P2 and a second delivery port 124 for delivering the taken-in liquid from inside the second pump chamber P2 into the supply passage K1.