Multifunctional pressure oscillation tube test platform with two open ends

Abstract

The invention relates to a multifunctional pressure oscillation tube test platform with two open ends, and belongs to the technical field of high and low pressure gas pressure exchange and cold-heat separation. The provided test platform is a multifunctional pressure oscillation tube test platform with two open ends which gives consideration to influence between tubes, flow field measurability, tube diameter and tube length adjustability and tube type changeability and can be used for practical gas research. The main body of the test platform comprises four parts, i.e., a housing, a central rotating shaft, a cavity rotating disc and a pressure oscillation tube with two open ends. Flow field test needs under different tube diameter, tube length, tube type and multi-tube requirements can be satisfied, thereby providing accurate data for related mechanism research, providing a basis for optimizing related structures and improving gas wave machine performance, reducing research cost and shortening research period; and the test platform can be used for experimental research taking natural gas as a medium, thereby providing more accurate experimental data for designing and optimizing a gas wave machine used for natural gas exploitation, gathering and transportation. The platform is simple in structure and easy and convenient to operate, can be used for experimental research, and can be also used for small-scale refrigeration and pressurization occasions.

Description

technical field [0001] The invention relates to a multi-functional test platform for a pressure oscillation tube with openings at both ends, which belongs to the technical field of high and low pressure gas pressure exchange and cold and heat separation. Background technique [0002] Gas wave technology is a kind of energy exchange between high and low pressure gases by using the wave system movement in the pressure oscillation tube, so as to achieve the purpose of refrigeration, pressurization or ejection. After decades of development, the gas wave technology has developed from the initial static gas wave refrigerator to the current pressure exchange gas wave refrigerator through the rotary gas wave refrigerator. The working core of the air wave machine is the pressure oscillation tube with openings at both ends, the rotating hub composed of a cluster of pressure oscillation tubes arranged in a circumferential direction is the rotating part of the air wave machine, and the ...

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Problems solved by technology

Therefore, it is necessary to conduct detailed measurement and analysis of many flow field parameters such as wave system movement, temperature change, and condensate droplet distribution in the tube. field to measure

The patent "a single-tube gas wave refrigerator and its refrigeration method" (CN1818510A) first proposed a single-tube experimental platform for a rotary gas wave refrigerator, but its core component is a pressure oscillation tube with one end open and the other closed. The tube type is completely different from the working process of the pressure oscillating tube with openings at both ends, and it is impossible to measure important content in the flow field of the pressure oscillating tube with openings at both ends

The patent "A Simplified Internal Combustion Wave Rotor Experimental Device Based on Relative Motion" (CN104458269A) is an attempt to make the open tube at both ends stationary and the nozzle rotate, but this patent does not consider the influence between adjacent oscillating tubes and cannot be realized Changes in geometric dimensions such as tube length make its structure difficult to meet the needs of in-depth research on air wave machines

[0004] In addition, factors such as the tube type, tube diameter, and tube length of the pressure oscillation tube with openings at both ends have a great influence on the performance of the air wave machine. In the past, the experimental platform needed to process a complete set of different types of air wave machine hubs for testing, which was expensive. long cycle

Secondly, the gas wave machine is widely used in the natural gas industry. However, neither the above-mentioned patented equipment nor the existing complete machine experimental platform in the literature can test the natural gas working condition, so that the performance of the device still depends on the actual gas working condition. Based on theoretical calculations, it has good practical significance to design test equipment suitable for natural gas medium

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