High-pressure three-dimensional compression pump-based high-pressure olefin liquefied gas additive test system

Abstract

The invention discloses a high-pressure three-dimensional compression pump-based high-pressure olefin and alkane liquefied gas additive test system. The high-pressure olefin and alkane liquefied gas additive test system comprises a screw extrusion bag, a high-pressure stop valve A and a high-pressure stop valve B, wherein the screw extrusion bag comprises a high-pressure cabin; the bottom of the high-pressure cabin is fixedly provided with a threaded sleeve; and the threaded sleeve is internally in threaded connection with a screw. The invention relates to the technical field of metering equipment. According to the high-pressure three-dimensional compression pump-based high-pressure olefin and alkane liquefied gas additive test system, a worker can freely and manually adjust dropwise adding with high precision according to required reaction metering by adopting the manual screw compression pump, so that the manufacturing cost of a metering compression pump is greatly reduced, the purposes of low cost and high precision are well achieved, investment in high-pressure equipment is low, the error between the mass actually entering a reaction kettle and the calculated volume and mass ofthe metering pump is small in a pressure change state, the maintenance cost of the high-pressure metering pump is low, and the precision can reach 0.1-0.2 g.

Description

technical field [0001] The invention relates to the technical field of metering equipment, in particular to a high-pressure olefin and alkane liquefied gas dosing test system based on a high-pressure three-dimensional compression pump. [0002] technical background [0003] In the development process involving petrochemical products, the general petrochemical chemical reaction process involves high temperature and high pressure. In the past experience, materials such as olefins and alkanes (especially gasified olefins) were introduced into the reaction vessel at one time. Then raise the temperature to make it react with other materials, during which an overtemperature and overpressure chemical process will occur, which is a test for the pressure vessel in the test, increasing the risk of the experiment and not being able to effectively grasp the reaction characteristics and the product. Another general scientific method adopts the micro high pressure metering pump method. ...

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Problems solved by technology

[0011] Aiming at the deficiencies of the prior art, the present invention provides a high-pressure olefin and alkane liquefied gas dosing test system based on a high-pressure three-dimensional compression pump, which solves the problem that the higher the measurement accuracy of the existing high-pressure metering compression pump, the higher the equipment cost, and the high-pressure metering pump The maintenance cost is high, and the metering pump is not very ideal when it is used in a small amount. Fine tiny pollutants appear, which will contaminate the beads in the metering pump and make the metering pump useless. The accuracy error is relatively large, and because it is added all at once, it will There is a high risk of rapid response in the response, and the response cannot reflect the actual needs of scientific experiments

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