Combined heat-power test device for compatibility between gas and solid material

Abstract

The invention relates to insulation technology, in particular, to a combined heat-power test device for compatibility between gas and a solid material. The combined heat-power test device comprises asealed tank, a high-voltage generating system, an air charging device, and a heating device. The sealed tank includes a tank body with an open upper end and a top cover arranged at the top of the tankbody; and the top cover and the tank body form a sealed cavity. The high voltage generating system includes a metal guide rod connected to a transformer, an insulating casing tube, a grading ring, ahigh-voltage electrode connected to the metal guide rod, a ground electrode connected to the tank body, and a spring connected to the ground electrode, wherein the insulating casing tube and the grading ring are arranged outside the metal guide rod. The air charging device includes a valve and a barometer that are connected to the tank body. The heating device includes a heating belt arranged on the outer wall of the tank body. With the provided combined heat-power test device, high-atmospheric-pressure-resistant, high-temperature-resistant, corrosion-resistant, safe and reliable long-term compatibility testing of the tank body is realized; the local overheating in the sealed tank can be monitored; the high safety of the high voltage test is ensured. The provided device has advantages of small size, low power consumption, reduced test occupation area, and low cost.

Description

technical field [0001] The invention belongs to the technical field of insulation, and in particular relates to a thermoelectric combined test device for the compatibility of gas and solid materials. Background technique [0002] Sulfur hexafluoride SF 6 Colorless, odorless, non-toxic, stable chemical properties, high compressive strength, excellent arc extinguishing performance, it has been widely used in gas-insulated equipment such as GCB, GIS, GIL and GIT since the 1960s. However SF 6 As a greenhouse gas, its impact on the environment cannot be underestimated. Currently about Alternative SF 6 The research on the characteristics of environmentally friendly insulating gases has received more and more attention. e.g. C 4 f 7 The insulating property of N gas is SF 6 2.2 times the greenhouse effect potential (GWP) of less than SF 6 one-tenth of , so C 4 f 7 N is a potential replacement for SF 6 one of the gases. But currently, C 4 f 7 The compatibility of N gas ...

AI Technical Summary

Problems solved by technology

The application publication number is CN109596166A and the name is "a device for high temperature compatibility test of gas and solid material". The invention patent application only considers the compatibility of gas and solid material under high temperature and high pressure environment. There are few patents on the compatibility test device. In most literatures, a sealed cavity is placed inside a large oven, and the high-pressure end is drawn out from the top of the oven. This kind of device is bulky, and it is inconvenient to inflate and vacuum.

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