Novel rotation damper

Abstract

The invention discloses a novel rotation damper which comprises a tube body, an inlet and an outlet; an upper partition panel and a lower partition panel which are arranged in the tube body divide the inside of the tube body into an exhaust warehouse, a gas-liquid warehouse and a liquid collection warehouse; a floating ball switch and a floater switch are arranged on the lower partition panel; a primary exhaust valve and an oil returning valve are arranged on the upper partition panel; the lower part of the oil returning valve is provided with a diversion plate; a guide column is arranged between the upper and the lower partition panels in the gas-liquid warehouse; the floating ball of the floating ball switch moves up and down along the guide column; the upper part of the gas-liquid warehouse is provided with a filter mesh; a foam destroyer is arranged in the exhaust warehouse; the top of the exhaust warehouse is provided with a secondary exhaust valve; and a vacuum pressure gauge, a water measuring instrument and a porthole are arranged on the tube body. The novel rotation damper is applicable to close loop circulation, warehouse sweeping, negative pressure conditions and the like, solves the problem that a large amount of gas enters a pipeline, and has the functions of liquefying and collecting mist and foam and returning liquid.

Description

technical field [0001] The invention relates to an anti-rotation device, in particular to a negative-pressure anti-rotation device. Background technique [0002] At present, the receiving and unloading pump room of the oil depot is an above-ground pump room (shed), and most of the receiving and unloading pumps use horizontal centrifugal pumps or vertical pipeline pumps; the loading and unloading methods of refined oil road tankers are all down-loading, and the pipeline must be discharged first when unloading Due to the limitation of the pressure of the liquid layer in the tanker, the exhaust speed of the gas in the tank is very slow, and the gas mixed in the liquid continuously stirs the oil body, generating a large amount of static electricity, which becomes a major risk factor; centrifugal pump (pipeline pump) steam The amount of corrosion residue is small and the self-priming ability is insufficient, so there is a high requirement for the gas content of the liquid in the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the receiving and unloading pump room of the oil depot is an above-ground pump room (shed), and most of the receiving and unloading pumps use horizontal centrifugal pumps or vertical pipeline pumps; the loading and unloading methods of refined oil road tankers are all down-loading, and the pipeline must be discharged first when unloading Due to the limitation of the pressure of the liquid layer in the tanker, the exhaust speed of the gas in the tank is very slow, and the gas mixed in the liquid continuously stirs the oil body, generating a large amount of static electricity, which becomes a major risk factor; centrifugal pump (pipeline pump) steam The amount of corrosion residue is small and the self-priming ability is insufficient, so there is a high requirement for the gas content of the liquid in the pipeline. With the operation of the process, the liquid level in the tank car continues to decrease, and a vortex is generated in the center of the liquid surface at the tank car outlet, and a small amount of gas is mixed Into the pump body, reducing the efficiency of the pump

When the unloading is nearing the end, a large amount of gas enters the pipeline along with the liquid, forming air resistance, which affects the normal loading and unloading. In severe cases, the pump may even drop, affecting normal operation

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