Gas source system for sulfur hexafluoride density relay calibrator

Abstract

The invention relates to the technical field of gas source detection, and specifically discloses a sulfur hexafluoride density relay calibration instrument gas source system. The gas source system is mainly formed by an air inlet, a filter, an air compressor, an air reservoir and a gas using port which are connected in sequence, and both sides of the air reservoir are provided with a temperature sensor and a pressure sensor. The sulfur hexafluoride density relay calibration instrument gas source system in the invention has the advantages that pressure required in an equipment calibration process through the air reservoir part, through a series of pressure detection, temperature detection and a timer, the air compressor works, air is quickly filled to the air reservoir, and required pressure that is set is maintained all the time, thereby completing the working process of the whole equipment. A method of an internally arranged gas source is adopted, and through detection of the temperature sensor and the pressure sensor, the air compressor works, so that required pressure that is set is maintained in the air reservoir all the time, thereby completing the working process of the whole equipment. The gas source system is small in size and convenient to carry, reduces emission of harmful gas, and thus is environment-friendly.

Description

technical field

[0001] The invention relates to the technical field of gas source detection, in particular to a gas source system for a sulfur hexafluoride density relay calibrator. Background technique

[0002] Sulfur hexafluoride density relay calibration gas source system is designed to provide reliable pressure equipment to ensure whether the equipment testing instrument is qualified, so as to ensure the safe and reliable operation of the power transmission and transformation system of the power grid.

[0003] The gas source system of the sulfur hexafluoride density relay calibrator is used to test the qualification of the sulfur hexafluoride density relay. In a closed container, the pressure of sulfur hexafluoride gas at a certain temperature can represent the density of sulfur hexafluoride gas. In order to be able to unify, it is customary to take the pressure of sulfur hexafluoride gas at 20°C as the scale value. During on-site calibration, under different ambient te...

Examples

Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] Such as figure 1 The air source system of a sulfur hexafluoride density relay calibrator shown is mainly composed of an air inlet 1, a filter 2, an air compressor 3, an air storage cylinder 5 and a gas use port 7 connected in sequence, the described A temperature sensor 4 and a pressure sensor 6 are respectively provided on both sides of the air storage cylinder 5 . The 5 bodies of the air storage cylinder are all stainless steel and fully sealed. It has go...

technical field

[0001] The invention relates to the technical field of gas source detection, in particular to a gas source system for a sulfur hexafluoride density relay calibrator. Background technique

[0002] Sulfur hexafluoride density relay calibration gas source system is designed to provide reliable pressure equipment to ensure whether the equipment testing instrument is qualified, so as to ensure the safe and reliable operation of the power transmission and transformation system of the power grid.

[0003] The gas source system of the sulfur hexafluoride density relay calibrator is used to test the qualification of the sulfur hexafluoride density relay. In a closed container, the pressure of sulfur hexafluoride gas at a certain temperature can represent the density of sulfur hexafluoride gas. In order to be able to unify, it is customary to take the pressure of sulfur hexafluoride gas at 20°C as the scale value. During on-site calibration, under different ambient te...

Examples

Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] Such as figure 1 The air source system of a sulfur hexafluoride density relay calibrator shown is mainly composed of an air inlet 1, a filter 2, an air compressor 3, an air storage cylinder 5 and a gas use port 7 connected in sequence, the described A temperature sensor 4 and a pressure sensor 6 are respectively provided on both sides of the air storage cylinder 5 . The 5 bodies of the air storage cylinder are all stainless steel and fully sealed. It has go...

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