High-temperature high-pressure kettle air heating device

Abstract

The invention relates to a high-temperature high-pressure kettle air heating device. The prior high-temperature acquisition mode is realized by utilizing the heat convection of conductive oil at homeand abroad and has the following defects of easy leakage, low heat efficiency, poorer controllability, poor furnace temperature evenness, slow temperature increase and decrease and poorer comprehensive performance parameters. The high-temperature high-pressure kettle air heating device comprises a kettle body, a heater, a blower, an insulation layer and an ventilating duct, wherein the insulationlayer comprises an outer layer, a middle insulation cotton layer and an inner layer plate; the kettle body is arranged on the central axis of the device; an air duct is arranged between the kettle body and the external insulation layer and is divided into an inner air duct and an outer air duct by the ventilating duct; the outer air duct is internally provided with the heater; and an air outlet ofthe inner air duct and an air inlet of the outer air duct are arranged at the lower end of one side of the insulation layer and communicated by the blower to form a hot air circulating passage. The invention has little heat loss, low heat efficiency, less repairing points, stronger controllability, good furnace temperature evenness, rapid furnace temperature increase and decrease and favorable 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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