Novel tank cover for solvent tank of thistle tube type ferrograph

Abstract

The invention discloses a novel tank cover for a solvent tank of a thistle tube type ferrograph. The novel tank cover comprises a cover body and a spring button, wherein the spring button comprises aguide needle and a spring; one end of the guide needle is a needle-shaped tip end which is matched with a solvent outlet in the bottom of the solvent tank; the other end of the guide needle is a disc-shaped pressing end; the cover body is disc-shaped; a circular through hole is formed in the circle center of the cover body; a guide ring is fixedly arranged in the circular through hole through a screw; the tip end of the guide needle penetrates through the guide ring and the circular through hole; and the pressing end of the guide needle is sleeved with the spring which enables the guide ring to move in the guide ring and in the axial direction of the guide ring. According to the novel tank cover, the circular through hole and the spring button are additionally arranged on the basis of theexisting design, the button is pressed, so that the solvent outlet is dredged by the guide needle, and the guide needle is reset under the action of the spring, so that good circulation of a solvent is realized, and normal dripping of the solvent is guaranteed.

Description

Technical field: [0001] The invention relates to a thistle tube type ferrography instrument, in particular to a novel tank cover for a solvent tank of the thistle tube type ferrography instrument. Background technique: [0002] Using thistle tube analysis ferrography system to detect lubricating oil, its complete working process includes four links, sampling, spectrum preparation, microphotography and image analysis. Among them, when a ferrogram is prepared with a ferrgraph, the oil sample flows through a thistle-shaped tube through a ferrogram placed obliquely above a high-gradient strong magnetic field. The abrasive particles are mainly affected by the magnetic force and deposited on the ferrogram according to certain rules. . Then wash the residual oil on the thistle-shaped tube and ferrogram with tetrachlorethylene solvent, and after drying, perform microphotography and image analysis to obtain information such as the shape, size, quantity, and composition of abrasive g...

AI Technical Summary

Problems solved by technology

[0003] During the use of the ferrography instrument, it was found that the solvent often does not drip out, and frequent dredging is required, and the residual oil flushing effect cannot be guaranteed within a certain flushing time, which affects the subsequent microscopic observation and analysis; and the solvent tank is poorly sealed, and the solvent volatilizes relatively quickly. Fast, causing certain pollution to the working environment

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