Standard gas preparation device

Abstract

The invention relates to the technical field of standard gas preparation devices, in particular to a standard gas preparation device. The standard gas preparation device comprises a gas storage bag and a pressure tank, wherein the gas storage bag is arranged in the pressure tank; the inner space of the gas storage bag and the inner space of the pressure tank are subjected to isolated sealing arrangement; the top of the pressure tank is provided with a manual gas valve of the pressure tank; the manual gas valve of the pressure tank is respectively connected with a pressure tank pressure release valve and high-pressure gas through a gas pipe; the bottom of the pressure tank is provided with a manual gas valve of the gas storage bag; one end of the manual gas valve of the gas storage bag is connected to the gas storage bag, and the other end of the manual gas valve of the gas storage bag is respectively connected with a gas storage bag pressure leakage valve and a gas source control valve group through the gas pipe; the gas pipe between the gas storage bag pressure leakage valve and the gas source control valve group is provided with a flow quality controller; the gas source control valve group is correspondingly connected with a gas source group through the gas pipe. The gas storage bag is pressurized through the pressure tank to evacuate the gas storage bag, the inner space of the gas storage bag and the inner space of the pressure tank are subjected to isolated sealing arrangement, and therefore, the problem of gas preparation deviation caused by bad sealing in the prior art is effectively solved.

Description

technical field [0001] The invention relates to the technical field of standard gas distribution devices, in particular to a standard gas distribution device. Background technique [0002] At present, in the test of the transformer oil-gas online monitoring device, a variety of different oil samples are required to calibrate the parameters of the device, and in order to prepare the oil, various gas sources with different concentrations must be used. In the existing standard gas distribution device, the gas chamber is set with a piston-type sealing structure. After a long time of use, the seal will be poor with the increase in the number of times of use, resulting in gas distribution deviation. Contents of the invention [0003] In view of the above problems, the present invention provides a standard gas preparation device. The air storage bag is arranged inside the pressure tank to form an air chamber, and the air storage bag is pressurized by the pressure tank to realize ...

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Problems solved by technology

[0003] In view of the above problems, the present invention provides a standard gas preparation device. The air storage bag is arranged inside the pressure tank to form an air chamber, and the air storage bag is pressurized by the pressure tank to realize the emptying of the air storage bag. The internal space isolation and sealing setting effectively solves the problem of gas distribution deviation caused by poor sealing in the prior art. The mixed gas of any concentration can be prepared through the flow quality controller to meet the needs of the transformer oil and gas online monitoring device in the test.

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