High temperature and high pressure kettle air heating device

Abstract

The invention relates to an air heating device for a high-temperature and high-pressure kettle. At present, the way of obtaining high temperature is achieved by convective heat transfer of heat transfer oil at home and abroad. It has the following disadvantages: easy to leak, low thermal efficiency, poor controllability, poor furnace temperature uniformity, slow heating and cooling, and relatively low comprehensive performance parameters. Difference. The invention includes a kettle body, a heater, a fan, a thermal insulation layer, and an air guide tube. The thermal insulation layer includes an outer shell, an intermediate thermal insulation cotton, and an inner layer plate; An air duct is provided, and the air duct is divided into an inner air duct and an outer air duct through the air guide tube, and a heater is installed in the outer air duct; the air outlet of the inner air duct and the air inlet of the outer air duct are arranged at the lower end of one side of the insulation layer, It is connected by a fan to form a hot air circulation channel. The invention has the advantages of small heat loss, low thermal efficiency, few maintenance points, strong controllability, good temperature uniformity, fast heating speed, rapid cooling, and good comprehensive performance parameters.

Description

technical field [0001] The invention belongs to the petroleum logging industry, and in particular relates to a high-temperature and autoclave air heating device for simulating the underground drilling environment in the petroleum logging industry to detect the performance of logging instruments. Background technique [0002] The high temperature and autoclave test device is a test device used in the petroleum logging industry to simulate the underground drilling environment to test the performance of logging instruments. The test device needs to generate a high temperature and high pressure environment when it works. At present, the way to obtain high temperature is realized by convective heat transfer of heat transfer oil at home and abroad. The use of heat transfer oil has the following disadvantages: [0003] ①The oil pipe is thin and long, and the viscosity of the oil is high, so the working pressure is high (~1MPa), and it is easy to leak; [0004] ②The oil temperature...

AI Technical Summary

Problems solved by technology

[0003] ①The oil pipe is thin and long, and the viscosity of the oil is high, so the working pressure is high (~1MPa), and it is easy to leak;

[0004] ②The oil temperature is high and the oil pressure is high. Once the seal is damaged, it will be combustible and polluted;

[0005] ③ When heating the kettle body, a special heating oil tank is required. From the tank body to the kettle body, the oil journey is long, so the heat loss is large and the thermal efficiency is low;

[0006] ④Oil heating requires more auxiliary equipment, and there are many maintenance points such as pipelines, valves, seals, and high pressure, and the controllability is poor;

[0007] ⑤ Poor uniformity of furnace temperature, slow heating and cooling, and poor comprehensive performance parameters

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