Metering device for phenylhydrazine production and metering method thereof

By coordinating the quantitative limiting component with the quantitative adjustment component, the volume of the metering tank is adjusted using the piston plate and buoyancy, and indirect readings are taken through the flow of the indicator liquid, which solves the problems of insufficient practicality and precision of existing metering devices and achieves fast and accurate quantitative delivery.

CN120685167APending Publication Date: 2025-09-23QIDONG A&P CHEM FACTORY
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Patent Information

Application Number
CN202510830305.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

The existing metering devices used in phenylhydrazine production cannot quickly and accurately perform quantitative dosage, and require the replacement of metering tanks of different specifications to adapt to different volume requirements, which is insufficient in practicality.

Method used

The quantitative limiting component and the quantitative adjusting component are combined to adjust the volume of the metering tank through the piston plate and buoyancy, and the flow of the indicator liquid of the auxiliary measuring component is used for indirect reading to avoid the influence of liquid surface shaking.

Benefits of technology

It enables quantitative delivery in different scenarios without replacing the metering tank, improves the practicality and accuracy of the metering device, and avoids the long measurement time and inaccuracy caused by liquid surface shaking.

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Abstract

The invention belongs to the technical field of phenylhydrazine production, and discloses a metering device for phenylhydrazine production and a metering method thereof.The metering device comprises a metering tank, a feeding port is formed in the bottom end of the metering tank, the outer side face of the metering tank is fixedly sleeved with a rack, and a quantitative limiting assembly is movably sleeved with the metering tank; the top end of the quantitative limiting assembly is movably clamped with a quantitative adjusting assembly, and the bottom end of the quantitative adjusting assembly is provided with an auxiliary measuring assembly. The quantitative limiting assembly and the quantitative adjusting assembly are matched and utilized, that is, after pre-adjustment is carried out through the quantitative adjusting assembly, the maximum rising distance of the piston plate is limited through buoyancy provided by injected raw materials and the effect of the quantitative adjusting assembly, and the quantitative limiting assembly and the quantitative adjusting assembly are matched and used for limiting the maximum rising distance of the piston plate. According to the device, the overall volume of the metering tank can be adaptively adjusted, the quantitative feeding requirements in different scenes are met, quantitative feeding can be completed without replacing metering tanks of different specifications, and the overall practicability of the device is improved.
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