Visual oil-water mixing and stirring device used for laboratory

Abstract

The invention relates to a visual oil-water mixing and stirring device used for a laboratory. The device comprises a kettle body, a kettle cover, a corrosion-sample clamp, three-blade stirring paddles and a temperature and rotating speed control box. A clamping sleeve is disposed outside the top of the kettle body. The kettle cover is fixed to the clamping sleeve through bolts to seal the kettle body. A vertical through hole is disposed in the center of the kettle cover. A bearing which bears a rotating shaft to rotate is fixed in the through hole. An electrical motor drives the rotating shaft to move through a conveyer belt. The lower part of the rotating shaft is provided with the corrosion-sample clamp and the two three-blade stirring paddles. The corrosion-sample clamp is sandwiched and fixed to the rotating shaft by the two three-blade stirring paddles. The three-blade stirring paddles and the corrosion-sample clamp rotate along with the rotating shaft synchronously. The kettle cover is provided with two holes. One of the two holes is provided with a heating resistance wire and the other of the two holes is provided with a thermocouple. The temperature and rotating speed control box is individually connected to the motor through a conducting wire, to the heating resistance wire through a conducting wire and to the thermocouple through a signal wire. According to the device, oil-water mixing states can be directly watched, and liquids in different parts of the kettle can be sampled for further detection.

Description

technical field [0001] The invention belongs to the field of petroleum experimental devices, and in particular relates to a visual oil-water mixing and stirring device for laboratories, which can directly view crude oil and water with a certain water content under certain rotational speed (flow rate) and certain temperature conditions. mixed state. Background technique [0002] On the properties of crude oil for CO 2 The impact of corrosion has been studied abroad in the 1990s. Most of the research results show that crude oil has obvious corrosion inhibition effect. When crude oil exists, it can greatly reduce CO 2 or H 2 Corrosion caused by S. Due to crude oil to CO 2 The complexity of corrosion effects. In the process of exploitation and gathering and transportation of many oil and gas fields, only the influence of various environmental parameters such as temperature and pressure under water phase conditions on corrosion is considered, and the influence of crude oil is...

AI Technical Summary

Problems solved by technology

[0003] Currently, research on crude oil properties for CO 2 or H 2 S corrosion effects experiments are generally carried out in high-temperature and high-pressure reactors. Due to high-temperature and high-pressure conditions, reactors are generally made of special metal materials with good airtightness. Therefore, once the experiment is started, the existence of the experimental medium in the reactor cannot be seen. , the experimental operator can only judge the oil-water mixing state in the kettle based on some experience

According to the change of water content and rotational speed (flow rate), the crude oil and water in the experimental medium may exist in a state of stratification or uneven mixing. In addition, the volume of the experimental medium added to the kettle cannot be well controlled. The volume of the input medium may be different, which may cause the sample to be completely immersed in water or crude oil. In addition, due to uneven stirring, it is possible that the water content of the crude oil where the sample is located may not be the initial value of the experiment. The above These factors may eventually lead to distortion of experimental data and poor reproducibility

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