The invention discloses a loop test device for imitating
gas phase erosion corrosion of
natural gas, and belongs to the technical field of imitating experiment devices. The loop test device for imitating
gas phase erosion corrosion of
natural gas is suitable for imitating conditions of medium components,
humidity, flow speed and the like of
natural gas gathering pipelines during the actual operation process, and is especially suitable for simulating the
erosion corrosion situation caused by the flowing of gases containing trace
moisture and corrosion media and having high-speed flowing in natural gas pipes, and testing
electrochemistry and corrosion behaviors. The device is composed of three parts including a
control system, a test
system and a
recovery system, wherein the
control system comprises a high-pressure air
bottle, a high-pressure kettle, a high-pressure flow meter, a regulating valve, a stop valve, an electric heater, a
humidity probe, a pressure probe and pipelines; the test
system comprises the high-pressure kettle, a three-
electrode system, a rotary working bench, a
test sample jig and a pressure probe; and the
recovery system comprises a
recovery tank, a regulating valve, a high-pressure flowmeter and a pressure probe. The device can well imitate the
erosion corrosion situation of parts including
pipe walls, elbows, tee joints and reducing parts by high-flow-speed wet gases under natural gas intra-
pipe environment, can test
electrochemistry signals, and has important significances for the research on
erosion corrosion behavior rules under the natural gas intra-
pipe environment as well as main influence factors of the
erosion corrosion behavior rules.