SF6 gas charging unit of SF6 electrical device
A kind of electrical equipment, SF6 technology, applied in the field of SF6 gas charging and discharging, can solve the problems of electrical equipment downtime, power grid accidents, inability to inflate in time, etc., and achieve the effect of ensuring normal operation
Inactive Publication Date: 2015-12-16
PHOIBOS TECH
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Problems solved by technology
[0004] However, most power facilities are unattended, so, SF 6 When the pressure value of the electrical equipment drops to the rated value, it cannot be known at the first time, resulting in the in
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[0010] 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 making creative efforts belong to the protection scope of the present invention.
[0011] see figure 1 , is the embodiment of the present invention SF 6 SF for electrical equipment 6 Schematic diagram of the structure of the inflatable unit. SF of this example 6 Inflatable unit includes SF 6 Gas tank 1 , first solenoid valve 2 , first pressure detector 3 , first controller 4 , second solenoid valve 5 , second pressure detector 6 , second controller 7 and constant temperature heater 8 .
[0012] SF 6 Gas tank 1 is used to store high pre...
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The invention provides an SF6 gas charging unit of an SF6 electrical device. The SF6 gas charging unit comprises an SF6 gas tank, a first electromagnetic valve, a first pressure detector, a first controller, a second electromagnetic valve, a second pressure detector, a second controller and a constant-temperature heater, wherein a coating layer doped with a temperature-sensitive color-changing material and a lithium base component material coats the external surface of the SF6 gas tank; the first controller is used for performing gas charging on the SF6 electric device through a gas charging pipeline when the pressure value of the SF6 gas in the SF6 electric device is lower than a first preset pressure threshold; the second controller is used for performing gas injecting on the SF6 gas tank through a gas injecting pipeline by using the external high-pressure SF6 gas when the pressure value of the SF6 gas in the SF6 gas tank is lower than a second preset pressure threshold; the second preset pressure threshold is greater than the first preset pressure threshold; the gas charging pipeline and the gas injecting pipeline are not simultaneously connected at any moment. The SF6 gas charging unit is capable of automatically charging the gas into the SF6 electrical device.
Description
technical field [0001] The present invention relates to SF 6 The technical field of gas charging and discharging, especially related to a kind of SF 6 SF for electrical equipment 6 Inflatable unit. Background technique [0002] SF 6 (Sulphur hexafluoride) gas is a non-toxic, colorless, tasteless, odorless, non-flammable synthetic gas, which has incomparable insulation properties and arc extinguishing ability compared to general electrolytes, so it is widely used in SF 6 Electrical Equipment. [0003] in SF 6 During use of electrical equipment, when SF 6 SF in electrical equipment 6 The pressure value of the gas drops to the rated value, and the SF 6 Electrical equipment is inflated, otherwise it will affect the SF 6 Electrical equipment works. State of the art practice is in SF 6 A pressure gauge is installed on the electrical equipment, and the pressure value of the pressure gauge is manually read regularly to judge whether the pressure value has dropped to the r...
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Inventor罗涛孙晓凡
OwnerPHOIBOS TECH