Isobaric cup and lid opening device for high temperature and high pressure

Abstract

The invention relates to an isobaric cup for high temperature and high pressure conditions and a cup lid opening device. The isobaric cup comprises a cup body and a cup lid, wherein the cup lid comprises a capping device connection part, an external thread part and a lid body part which are successively arranged from the top down, a polytetrafluoroethylene cylinder is nested and mounted on the inner side of the lid body part, a clamp spring cover sleeves the outer side of the lid body part, a plurality of circular holes are uniformly formed in the upper part of the ring wall of the clamp spring cover at intervals in the radial direction, a vertical strip hole is communicated and connected with the upper part of each circular hole, and is communicated to the bottom of the clamp spring coverstraightly, clamping hooks are inwardly turned at the bottom of the clamp spring cover, a circle of outer edges are arranged at the top of the cup body, and when the cup lid covers the cup body, theclamping hooks of the clamp spring cover can be rightly clamped on the outer edge of the cup body to fix the cup lid. The isostatic cup is made of titanium-cobalt alloy materials, thereby having highthermal conductivity and corrosion resistance, and being capable of being used under the high pressure conditions; and the stainless steel clamp spring cover is mounted outside the cup lid, and can bepried to relief pressure through the opening device after an experiment is finished.

Description

technical field [0001] The invention belongs to the technical field of devices for isobaric research on thermodynamic properties of solutions, and in particular relates to an isobaric cup and a cup lid opening device that can be used under high temperature and high pressure conditions. Background technique [0002] Solutions widely exist in nature, and the study of thermodynamic properties of electrolyte solutions is of great significance for the rational development and comprehensive utilization of marine resources, salt lake resources and hydrothermal mineral resources. At present, the research methods for the thermodynamic properties of electrolyte solutions mainly include electromotive force method, calorimetry method and isobaric method. Compared with the electromotive force method and calorimetry method, the isobaric method has the characteristics of high accuracy, less restrictive conditions, simple experimental equipment, and easy operation at room temperature. It is...

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Problems solved by technology

[0004] In addition, most of the isobaric sampling devices in current experiments are used at normal temperature and pressure, but cannot be used under high temperature and high pressure conditions due to the large amount of volatilization of the solution due to the temperature and pressure differences inside and outside the box.

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