Pipeline support devices for preventing melting and sinking based on gas heat exchange

A pipeline support device for preventing melting and sinking based on gas heat exchange, wherein the pipeline support device is installed in a trench, and the pipeline support device includes a support frame and a gas heat exchange mechanism arranged on one side of the support frame, wherein

• a bottom of the support frame is fixed in the trench, a top of the support frame is an arc-shaped support surface configured to support a main body of the pipeline, and a support partition is fixed inside the support frame;
• the support partition separates the bottom of the support frame to form an upper chamber and a lower chamber;
• wherein the two chambers include a first chamber close to one side of the main body of the pipeline and located at an upper portion, and a second chamber close to a bottom of the trench and located at a lower portion;
• the support partition is provided with a through hole;
• the gas heat exchange mechanism includes two groups of ventilation components, a group of air changing component and a group of control component, wherein
• each group of the ventilation components includes a ventilation pipe, a top of each ventilation pipe being connected to a first ventilation opening, a middle-lower of the each ventilation pipe being provided with a second ventilation opening, and a bottom of the each ventilation pipe being provided with a third ventilation opening;
• wherein the second ventilation openings of the two ventilation pipes are both communicated with the first chamber, and the third ventilation openings of the two ventilation pipes are communicated with the second chamber;
• the air changing component is driven by cold air to open;
• when the air changing component is opened, the two ventilation pipes are used for ventilation, one of the two ventilation pipes being used as an air inlet pipe, and the other is used as an air outlet pipe;
• at the same time, the air changing component drives an action of the control component;
• the control component controls the second ventilation opening of the ventilation pipe which is used as the air inlet pipe to close and the third ventilation opening of the ventilation pipe which is used as the air inlet pipe to open, and controls the second ventilation opening of the ventilation pipe which is used as the air outlet pipe to open and the third ventilation opening of the ventilation pipe which is used as the air outlet pipe to close;
• the air changing component includes a first rotating shaft and baffles respectively fixed on two sides of the first rotating shaft;
• wherein the first rotating shaft is rotatably arranged on two adjacent side wall plates of the two ventilation pipes, or the first rotating shaft is rotatably arranged on a side wall plate shared by the two ventilation pipes;
• and the two baffles of the air changing component are respectively located in the two ventilation pipes;
• and
• the control component includes a connecting plate driven by the first rotating shaft, wherein the connecting plate controls two first windshields respectively through two groups of unidirectional driving structures;
• and the two first windshields respectively control switches of the two second ventilation openings, a bottom of each first windshield is fixedly connected to a second windshield through a connecting rod;
• the second windshield is perpendicular to the first windshield, the two second windshields respectively control switches of the two third ventilation openings;
• in an initial state, the first windshield blocks the second ventilation openings, and the second ventilation openings are not ventilated, the second windshields do not block the third ventilation openings, and the third ventilation openings are opened for ventilation.