Gas Supply System Liquid Boosting Energy Reduction
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Solution Overview
Problem
Conventional gas supply systems face inefficiencies in boosting gases to predetermined pressures, requiring excessive energy due to the need for high-pressure gas boosting, which affects overall system efficiency.
Innovation Solution
A gas supply system that mixes and boosts a first gas generated by vaporizing a low-temperature liquefied gas with a second gas vaporized from an even lower temperature liquefied gas, utilizing a boosting mechanism, pump, vaporization mechanism, and reliquefaction path to optimize energy usage by increasing the amount of gas boosted in a liquid state and cooling the gas using a heat exchanger to enhance liquefaction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If gas is boosted to predetermined pressure using conventional methods, then the gas can be supplied to the demander, but excessive energy is consumed
Solution Approach 1:
The invention changes the physical state parameter of the gas from gaseous to liquid form before boosting. By converting the gas to liquid state and then boosting it, the system achieves the required pressure with significantly lower energy consumption compared to boosting the gas directly in its gaseous state.
Solution Approach 2:
The invention replaces the conventional mechanical gas boosting system with a hybrid system that combines phase change (vaporization) and liquid boosting mechanisms. This substitution allows the system to exploit the physical properties of phase transitions to reduce the mechanical work required for pressure increase.
2Use of energy by moving object
If low-temperature liquefied gas is used for boosting, then energy consumption is reduced, but additional vaporization and reliquefaction mechanisms are required
Solution Approach 1:
The heat exchanger in the system serves multiple functions: it acts as a vaporization mechanism to convert liquid gas to gas, and simultaneously serves as a reliquefaction mechanism to convert gas back to liquid. This multi-functionality reduces the need for separate dedicated components, thereby managing system complexity while achieving energy efficiency.
Solution Approach 2:
The invention merges the vaporization and reliquefaction processes into a single heat exchanger component. By combining these functions in one device, the system reduces the number of separate components needed, managing complexity while enabling the energy-efficient phase change boosting approach.
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 reduces the energy required for gas boosting by increasing the amount of gas boosted in a liquid state, enhancing liquefaction efficiency, and simplifying the system by using the cold of the lower-temperature liquefied gas for cooling, thereby improving overall gas supply efficiency.
Implementation Method 1
a first gas (G1) generated by vaporization of a first low-temperature liquefied gas (L1)
Implementation Method 2
a second gas (G2) generated by vaporization of a second low-temperature liquefied gas (L2)
Implementation Method 3
a cooling heat exchanger (27) configured to cool the first gas (G1) by the second low-temperature liquefied gas (L2) or the second gas (G2)
Implementation Method 4
a reliquefaction path (28) that is a path configured to liquefy at least part of the first gas (G1)
Data Source
AI summary
A gas supply system includes a first tank, a first path into which a first gas generated by vaporization of a first low-temperature liquefied gas flows, a gas boosting mechanism being disposed in the first path, a second path that is a path configured to extract the first low-temperature liquefied gas from the first tank, a pump and a vaporization mechanism being disposed in the second path and a reliquefaction path that is a path configured to liquefy at least part of the first gas extracted from an upstream side of the gas boosting mechanism in the first path and to cause the liquefied first gas to flow into an upstream side of the pump in the second path, a cooling heat exchanger configured to cool the first gas by a second low-temperature liquefied gas or a second gas being disposed in the reliquefaction path.