CN105156887A - SF6 gas-filling apparatus of SF6 electrical apparatus - Google Patents

SF6 gas-filling apparatus of SF6 electrical apparatus Download PDF

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Publication number
CN105156887A
CN105156887A CN201510590958.5A CN201510590958A CN105156887A CN 105156887 A CN105156887 A CN 105156887A CN 201510590958 A CN201510590958 A CN 201510590958A CN 105156887 A CN105156887 A CN 105156887A
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CN
China
Prior art keywords
gas
solenoid valve
pressure
value
controller
Prior art date
Application number
CN201510590958.5A
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Chinese (zh)
Inventor
罗涛
孙晓凡
Original Assignee
四川菲博斯科技有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 四川菲博斯科技有限责任公司 filed Critical 四川菲博斯科技有限责任公司
Priority to CN201510590958.5A priority Critical patent/CN105156887A/en
Publication of CN105156887A publication Critical patent/CN105156887A/en

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Abstract

The invention provides an SF6 gas-filling apparatus of an SF6 electrical apparatus. The SF6 gas-filling apparatus comprises an SF6 gas tank, a first solenoid valve, a first pressure detector, a first controller, a second solenoid valve, a second pressure detector and a second controller, wherein the outer surface of the SF6 gas tank is coated with a coating layer which is doped with a temperature-sensitive colour changing matter and a lithium base component matter; the first controller is used for inflating the SF6 electrical apparatus by a loading line when the SF6 gas pressure value in the SF6 electrical apparatus is lower than a first preset pressure threshold value; the second controller is used for gas entrainment for the SF6 gas tank through a gas entrainment line by utilizing external high-pressure SF6 gas when the SF6 gas pressure value in the SF6 gas tank is lower than a second preset pressure threshold value; the second preset pressure threshold value is greater than the first preset pressure threshold value; and only one of the loading line and the gas entrainment line is communicated at any moment. The SF6 gas-filling apparatus of the SF6 electrical apparatus is capable of automatically inflating the SF6 electrical apparatus.

Description

SF 6the SF of electrical equipment 6charger
Technical field
The present invention relates to SF 6gas charge and discharge technical field, particularly relates to a kind of SF 6the SF of electrical equipment 6charger.
Background technique
SF 6(sulphur hexafluoride) gas is a kind of nontoxic, colourless, tasteless, odorless, non-flammable synthetic gas, has the incomparable insulation characterisitic of general electrolyte and arc extinguishing ability, is therefore widely used in SF 6electrical equipment.
At SF 6in the process that electrical equipment uses, work as SF 6sF in electrical equipment 6the force value of gas drops to rating value, needs SF 6electrical equipment is inflated, otherwise can affect SF 6electrical equipment works.The way of prior art is at SF 6electrical equipment arranges pressure gauge, reads manometric force value by human at periodic intervals and judge whether force value drops to rating value.If determine force value to drop to rating value, then by inflating manually.
But most of electric power facility is all that implementation is unattended, so, SF 6when the force value of electrical equipment drops to rating value, cannot learn the very first time, cause and can not inflate in time.And if can not inflate in time, then can cause SF 6electrical equipment non-programmed halt, and then cause power grid accident, there is serious potential safety hazard.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of SF 6the SF of electrical equipment 6charger, can automatically to SF 6electrical equipment is inflated.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: provide a kind of SF 6the SF of electrical equipment 6charger, comprises SF 6gas tank, the first solenoid valve, the first pressure detector, the first controller, the second solenoid valve, the second pressure detector and second controller: described SF 6gas tank is for storing high pressure SF 6gas, described SF 6gas tank is communicated with described first solenoid valve and described second solenoid valve, described SF 6the outer surface of gas tank scribbles coating layer, doped with temperature sensitive color change material and lithium-based component material in described coating layer, as described SF 6there is SF in gas tank 6during Leakage Gas, the SF of leakage 6gas and lithium-based component material generation exothermic reaction, make described coating layer heat up, and cause the variable color of temperature sensitive color change material; Described first solenoid valve is by gas ducting and described SF 6the inflation inlet of electrical equipment connects, and described second solenoid valve connects for accessing external high pressure SF 6the aerating pipeline of gas; Described first pressure detector is for detecting described SF 6a SF in electrical equipment 6gas pressure value, and by a described SF 6gas pressure value sends to described first controller; Described first controller is for receiving a described SF 6gas pressure value, and at a described SF 6when gas pressure value is lower than the first preset pressure threshold value, controls described first solenoid valve and connect described gas ducting, at a described SF 6when gas pressure value is higher than the first preset pressure threshold value, control gas ducting described in described first solenoid valve shuts; Described second pressure detector is for detecting described SF 6the 2nd SF in gas tank 6gas pressure value, and by described 2nd SF 6gas pressure value sends to described second controller; Described second controller is for receiving described 2nd SF 6gas pressure value, and at described 2nd SF 6when gas pressure value is lower than the second preset pressure threshold value, controls described second solenoid valve and connect described aerating pipeline, at described 2nd SF 6when gas pressure value is higher than the second preset pressure threshold value, control aerating pipeline described in described second solenoid valve shuts; Wherein, described second preset pressure threshold value is greater than described first preset pressure threshold value, and connects when described gas ducting and described aerating pipeline are different at any time.
Be different from the situation of prior art, the invention has the beneficial effects as follows: by SF 6electrical equipment carries out SF 6gas pressure value detects, according to SF 6the size of gas pressure value carrys out Controlling solenoid valve to SF 6electrical equipment is inflated, meanwhile, to SF 6gas tank also carries out SF 6gas pressure value detects, according to SF 6the size of gas pressure value carrys out Controlling solenoid valve to SF 6gas tank carries out aerating, makes SF 6gas tank at any time can to SF 6electrical equipment is inflated, thus can automatically to SF 6electrical equipment is inflated, and ensures SF 6electrical equipment normally works.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention SF 6the SF of electrical equipment 6the structural representation of charger.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, be embodiment of the present invention SF 6the SF of electrical equipment 6the structural representation of charger.The SF of the present embodiment 6charger comprises SF 6gas tank 1, first solenoid valve 2, first pressure detector 3, first controller 4, second solenoid valve 5, second pressure detector 6 and second controller 7.
SF 6gas tank 1 is for storing high pressure SF 6gas, SF 6gas tank 1 is communicated with the first solenoid valve 2 and the second solenoid valve 5.SF 6the outer surface of gas tank 1 scribbles coating layer 11, doped with temperature sensitive color change material and lithium-based component material in coating layer 11, works as SF 6there is SF in gas tank 1 6during Leakage Gas, the SF of leakage 6gas and lithium-based component material generation exothermic reaction, make coating layer 11 heat up, and cause the variable color of temperature sensitive color change material.Due to SF 6the poor activity of gas own, is difficult to directly and other material generation metachromasias, therefore adulterate in coating layer 11 temperature sensitive color change material and lithium-based component material can judge whether generation SF indirectly 6leakage Gas.
First solenoid valve 2 is by gas ducting 21 and SF 6the inflation inlet of electrical equipment 10 connects.Second solenoid valve 5 connects for accessing external high pressure SF 6the aerating pipeline 51 of gas.
First pressure detector 3 is for detecting SF 6a SF in electrical equipment 10 6gas pressure value, and by a SF 6gas pressure value sends to the first controller 4.
First controller 4 is for receiving a SF 6gas pressure value, and at a SF 6when gas pressure value is lower than the first preset pressure threshold value, controls the first solenoid valve 2 and connect gas ducting 21, at a SF 6when gas pressure value is higher than the first preset pressure threshold value, controls the first solenoid valve 2 and cut off gas ducting 21.
Second pressure detector 6 is for detecting SF 6the 2nd SF in gas tank 1 6gas pressure value, and by the 2nd SF 6gas pressure value sends to second controller 7.
Second controller 7 is for receiving the 2nd SF 6gas pressure value, and at the 2nd SF 6when gas pressure value is lower than the second preset pressure threshold value, controls the second solenoid valve 5 and connect aerating pipeline 51, at the 2nd SF 6when gas pressure value is higher than the second preset pressure threshold value, controls the second solenoid valve 5 and cut off aerating pipeline 51.
Wherein, the second preset pressure threshold value is greater than the first preset pressure threshold value, and connects when gas ducting 21 and aerating pipeline 51 are different at any time.
By the way, the SF of the embodiment of the present invention 6the SF of electrical equipment 6charger passes through SF 6electrical equipment carries out SF 6gas pressure value detects, according to SF 6the size of gas pressure value carrys out Controlling solenoid valve to SF 6electrical equipment is inflated, meanwhile, to SF 6gas tank also carries out SF 6gas pressure value detects, according to SF 6the size of gas pressure value carrys out Controlling solenoid valve to SF 6gas tank carries out aerating, makes SF 6gas tank at any time can to SF 6electrical equipment is inflated, thus can automatically to SF 6electrical equipment is inflated, and ensures SF 6electrical equipment normally works, and owing to not needing artificial participation, thus reduces cost of equipment maintenance.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (1)

1. a SF 6the SF of electrical equipment 6charger, is characterized in that, comprises SF 6gas tank, the first solenoid valve, the first pressure detector, the first controller, the second solenoid valve, the second pressure detector and second controller:
Described SF 6gas tank is for storing high pressure SF 6gas, described SF 6gas tank is communicated with described first solenoid valve and described second solenoid valve, described SF 6the outer surface of gas tank scribbles coating layer, doped with temperature sensitive color change material and lithium-based component material in described coating layer, as described SF 6there is SF in gas tank 6during Leakage Gas, the SF of leakage 6gas and lithium-based component material generation exothermic reaction, make described coating layer heat up, and cause the variable color of temperature sensitive color change material;
Described first solenoid valve is by gas ducting and described SF 6the inflation inlet of electrical equipment connects, and described second solenoid valve connects for accessing external high pressure SF 6the aerating pipeline of gas;
Described first pressure detector is for detecting described SF 6a SF in electrical equipment 6gas pressure value, and by a described SF 6gas pressure value sends to described first controller;
Described first controller is for receiving a described SF 6gas pressure value, and at a described SF 6when gas pressure value is lower than the first preset pressure threshold value, controls described first solenoid valve and connect described gas ducting, at a described SF 6when gas pressure value is higher than the first preset pressure threshold value, control gas ducting described in described first solenoid valve shuts;
Described second pressure detector is for detecting described SF 6the 2nd SF in gas tank 6gas pressure value, and by described 2nd SF 6gas pressure value sends to described second controller;
Described second controller is for receiving described 2nd SF 6gas pressure value, and at described 2nd SF 6when gas pressure value is lower than the second preset pressure threshold value, controls described second solenoid valve and connect described aerating pipeline, at described 2nd SF 6when gas pressure value is higher than the second preset pressure threshold value, control aerating pipeline described in described second solenoid valve shuts;
Wherein, described second preset pressure threshold value is greater than described first preset pressure threshold value, and connects when described gas ducting and described aerating pipeline are different at any time.
CN201510590958.5A 2015-09-16 2015-09-16 SF6 gas-filling apparatus of SF6 electrical apparatus CN105156887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510590958.5A CN105156887A (en) 2015-09-16 2015-09-16 SF6 gas-filling apparatus of SF6 electrical apparatus

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Application Number Priority Date Filing Date Title
CN201510590958.5A CN105156887A (en) 2015-09-16 2015-09-16 SF6 gas-filling apparatus of SF6 electrical apparatus

Publications (1)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871833A (en) * 2009-04-23 2010-10-27 Abb研究有限公司 Sf6 gas leakage detection method and material
CN202048356U (en) * 2010-12-13 2011-11-23 山东电力集团公司临沂供电公司 Portable multipurpose sulfur hexafluoride electric equipment air charging device
CN102788242A (en) * 2012-08-23 2012-11-21 昆山宝宏机械有限公司 Air storage tank capable of automatically aerating
CN204005218U (en) * 2014-08-27 2014-12-10 山东电力设备有限公司 Transformer body store status on-line monitoring system
CN104390132A (en) * 2014-10-16 2015-03-04 国家电网公司 Multifunctional SF6 steel cylinder aerating apparatus
CN104534274A (en) * 2015-01-19 2015-04-22 国家电网公司 SF6 automatic air inflation device and automatic air inflation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871833A (en) * 2009-04-23 2010-10-27 Abb研究有限公司 Sf6 gas leakage detection method and material
CN202048356U (en) * 2010-12-13 2011-11-23 山东电力集团公司临沂供电公司 Portable multipurpose sulfur hexafluoride electric equipment air charging device
CN102788242A (en) * 2012-08-23 2012-11-21 昆山宝宏机械有限公司 Air storage tank capable of automatically aerating
CN204005218U (en) * 2014-08-27 2014-12-10 山东电力设备有限公司 Transformer body store status on-line monitoring system
CN104390132A (en) * 2014-10-16 2015-03-04 国家电网公司 Multifunctional SF6 steel cylinder aerating apparatus
CN104534274A (en) * 2015-01-19 2015-04-22 国家电网公司 SF6 automatic air inflation device and automatic air inflation method thereof

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Application publication date: 20151216