Differential pressure type liquid level detector

Abstract

The invention discloses a pressure differential liquid level detecting device including the canister with the up-down closed covers, the liquid input set in the down closed cover, the extraction opening set in the up closed cover. The diaphragm seat, the flinger clapboard and the splash clapboard are set in the inside of the canister. The diaphragm seat is installed with the diaphragm by the press plate; the center of the diaphragm is installed with the liquid signal leader which spreads to the upper of the canister through the flinger clapboard and the splash clapboard, the signal switch corresponding to the liquid signal leader is installed in the upper closed cover; the air hole is set in the flinger clapboard and the splash clapboard, the liquid hole corresponding to the diaphragm is set in the seat soleplate and the diaphragm seat and the pressing plate are set with the galvanometer hole; the spring is suited in the liquid signal leader and compress spring is set between the up closed cover underside and the splash clapboard. So it detects the liquid level quickly and accurately.

Description

technical field [0001] The invention relates to a liquid level detection device, in particular to a differential pressure liquid level detection device for liquid paint. Background technique [0002] With the large-scale production and use of domestic steel radiators, in order to increase the service life of radiators, most radiators generally adopt the production process of internal coating waterproof coatings. In order to improve the coating quality and To improve production efficiency, the internal anti-corrosion vacuum coating technology is currently the best production process, but in use, because the waterproof coating is an opaque liquid with a large consistency, and the consistency of different coatings varies greatly, when the coating enters the formed After the inside of the radiator is vacuumed, due to the vacuum, the liquid paint expands rapidly and the density decreases. It is difficult to detect the liquid level continuously, quickly and accurately by using the...

AI Technical Summary

Problems solved by technology

[0002] With the large-scale production and use of domestic steel radiators, in order to increase the service life of radiators, most radiators generally adopt the production process of internal coating waterproof coatings. In order to improve the coating quality and To improve production efficiency, the internal anti-corrosion vacuum coating technology is currently the best production process, but in use, because the waterproof coating is an opaque liquid with a large consistency, and the consistency of different coatings varies greatly, when the coating enters the formed After the inside of the radiator is vacuumed, due to the vacuum, the liquid paint expands rapidly and the density decreases. It is difficult to detect the liquid level continuously, quickly and accurately by using the current general-purpose liquid level sensor or liquid level detection device. At present, radiator manufacturers generally use The unique float type liquid level detection device has large volume, high failure rate and slow detection speed, which seriously limits the application of internal anti-corrosion vacuum coating technology

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