Simulated testing system of liquid-state CO2 phase change process

Abstract

The invention discloses a simulated testing system of a liquid-state CO2 phase change process. The simulated testing system comprises five parts including a liquid-state CO2 pump pressure injection system, a sealed high-pressure-resisting container system, a data acquisition and storage system, a waste gas and waste liquid recycling and cyclic utilization system and a manual heating system, wherein the liquid-state CO2 pump pressure injection system comprises a Dewar flask mounted beside sealed high-pressure-resisting containers and a manual variable piston pump; the sealed high-pressure-resisting container system comprises three sealed high-pressure-resisting containers with different types, including a pipeline type low-temperature-resisting and high-pressure-resisting container, a spherical type low-temperature-resisting and high-pressure-resisting container and a storage tank type low-temperature-resisting and high-pressure-resisting container; the data acquisition and storage system comprises a temperature sensor, a pressure sensor, a liquid level sensor and an infrared thermal imager which are mounted in each sealed high-pressure-resisting container. The simulated testing system disclosed by the invention can be used for monitoring changes of parameters including temperature, pressure, liquid levels and the like of liquid-state CO2 in the sealed high-pressure-resisting containers in real time; a phase state attributed graph of the CO2 is combined and phase state judgment of the CO2 in the system is realized.

Description

technical field [0001] The present invention relates to liquid CO 2 The technical field of storage safety and transportation safety, specifically relates to a liquid CO 2 Phase change process simulation test system. Background technique [0002] CO, one of the main components of greenhouse gases 2 , usually collected, stored and transported in liquid form in industrial production tail gas recovery. When liquid CO 2 When the storage temperature or pressure is below the triple point, it transforms into a solid phase. When the temperature reaches a certain value, the liquid CO 2 Vaporization, pressure rises, to liquid CO 2 The storage and transportation process has buried safety hazards. [0003] in liquid CO 2 In industrial applications, the presence of dry ice will seriously affect the liquid CO 2 Utilization efficiency may even lead to severe blockage of pipelines, and more seriously, accidents may occur, threatening the safety of staff. in liquid CO 2 During long...

AI Technical Summary

Problems solved by technology

When the temperature reaches a certain value, the liquid CO 2 Vaporization, pressure rises, to liquid CO 2 The storage and transportation process bury safety hazards

[0003] in liquid CO 2 In industrial applications, the presence of dry ice will seriously affect the liquid CO 2 Utilization efficiency may even lead to severe blockage of pipelines, and even more serious accidents will occur, threatening the safety of staff

in liquid CO 2 During long-distance pipeline transportation, due to the liquid CO 2 During pipeline transportation, phase changes are prone to occur, causing ice to block the pipeline, resulting in a sudden increase in flow rate and affecting the flow rate of liquid CO 2 Normal delivery; liquid CO 2 During tanker transportation, due to the coupling effects of various factors, the liquid CO inside the tanker 2 Phase change may occur, affecting transportation safety, and real-time monitoring of liquid CO is required 2 state; liquid CO 2 In tank storage, the phase state inside the storage tank is fuzzy, so it is necessary to maintain reasonable phase state parameters, which is conducive to safe storage and transportation

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