Magnetic connecting shaft type hand cranking small-flow LNG filling pump

Abstract

The invention provides a magnetic connecting shaft type hand cranking small-flow LNG filling pump. The magnetic connecting shaft type hand cranking small-flow LNG filling pump comprises a rotating plate, a first drive impeller, a second drive impeller, a magnetic coupler, a first permanent magnet, a second permanent magnet, a thread rod, a first baffle and a second baffle; the second drive impeller is arranged on the rear side in the pump body, the first drive iempller is arranged on the front side in the pump body, the magnetic coupler is arranged on the lower end face of the pump body, the first permanent magnet is arranged in the pump body, and the second permanent magnet is arranged in a drive force transmission system. Due to design, the problem that an original small flow LNG fillingpump is vacant is solved, the first baffle is arranged on the annular side face in a liquid inlet, the second baffle is arranged in the middle of the first baffle, a rotating plate is arranged on theupper side of the outer surface of the liquid inlet, and the thread rod is arranged on the lower end face of the rotating plate. Due to design, the problem that the original small flow LNG filling pump cannot adjust the natural gas inlet amount is solved, the structure is reasonable, use is rapid and convenient, the flow adjusting is facilitated, and the cost is low.

Description

technical field [0001] The invention is a magnetic shaft-connecting hand-operated low-flow LNG filling pump, which belongs to the field of mechanical automation. Background technique [0002] LNG is an abbreviation for liquefied natural gas. The main ingredient is methane. LNG is colorless, odorless, non-toxic and non-corrosive, and its volume is about 1 / 600 of the volume of the same amount of gaseous natural gas. Therefore, liquefied natural gas is an effective way of storage and transportation of natural gas, which has been developed rapidly in recent years. During the transshipment and filling process of liquefied natural gas, a large number of LNG filling pumps are required. At present, there is a vacancy in the industry for small-flow LNG filling pumps, which are only limited to electric-driven large-flow, small-flow LNG filling pumps do not require external energy, and rely on manual methods to achieve LNG small-flow filling, but manual filling cannot adjust the flow...

AI Technical Summary

Problems solved by technology

At present, there is a vacancy in the industry for small-flow LNG filling pumps, which are only limited to electric-driven large-flow, small-flow LNG filling pumps do not require external energy, and rely on manual methods to achieve LNG small-flow filling, but manual filling cannot adjust the flow of natural gas Now, there is an urgent need for a magnetic coupling type manual small flow LNG filling pump to solve the above problems

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