CN105627086B - SF6 electrical equipment automatic on-line making-up air devices - Google Patents

SF6 electrical equipment automatic on-line making-up air devices Download PDF

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Publication number
CN105627086B
CN105627086B CN201511010710.3A CN201511010710A CN105627086B CN 105627086 B CN105627086 B CN 105627086B CN 201511010710 A CN201511010710 A CN 201511010710A CN 105627086 B CN105627086 B CN 105627086B
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CN
China
Prior art keywords
valve
pressure
pressure sensor
electrical equipment
gas
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Application number
CN201511010710.3A
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Chinese (zh)
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CN105627086A (en
Inventor
刘丽勇
刘丽威
刘子骞
李志涛
段兵
代婧瑶
皮兆广
刘红春
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State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Baoding Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Baoding Power Supply Co of State Grid Hebei Electric Power Co Ltd
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Priority to CN201511010710.3A priority Critical patent/CN105627086B/en
Publication of CN105627086A publication Critical patent/CN105627086A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use

Abstract

The invention discloses a kind of SF6Electrical equipment automatic on-line making-up air device, is related to SF6Technical field of electric equipment.Including execution unit, control unit and power supply；Execution unit includes electric controlled gas-compensation valve, copper pipe, the first pipe interface, first pressure sensor, triple valve, magnetic valve, second pressure sensor, the second pipe interface, pressure-reducing valve, the SF being sequentially connected6Gas cylinder main valve and SF6Gas cylinder；Control unit includes main control module, wireless transport module and relay module；Main control module electrically connects with first pressure sensor, second pressure sensor, wireless transport module and relay module respectively；Control coil of the relay module respectively with electric controlled gas-compensation valve and magnetic valve electrically connects.SF provided by the invention6Electrical equipment automatic on-line making-up air device, tonifying Qi is stable, and securely and reliably, the remote auto control and pressure information that can realize tonifying Qi process gather, and substantially reduce SF6Electric equipment maintenance and replacement cost.

Description

SF6 electrical equipment automatic on-line making-up air devices
Technical field
The present invention relates to SF6Technical field of electric equipment.
Background technology
Because of SF6Gas has excellent insulation, arc extinguishing, heat-conductive characteristic, after just being compressed from the 1960s SF6Gas is successfully applied on the power equipments such as high-voltage switch gear.By years development, SF6Breaker, GIS（Sulfur hexafluoride seals Enclosed combined electrical apparatus）、GIL（Gas-insulated metal closed power transmission line）Deng electrical equipment into electrical equipment main flow, SF6Electrically The application of equipment tends to be extensive.
With the continuous popularization of high ferro, smart home, Rechargeable vehicle, elevator in society, various circles of society are to the quality of power supply Requirement more and more higher, account for overall SF6The SF of electrical equipment ratio only a few6Gas permeation problem gradually exposes.One side SF6 Electrical equipment seepage place is all micro seepage, and prior art finds that difficulty is big, and full and accurate seepage place is not easy to find, to equipment It is long-term out of service to check that breakthrough does not also possess function definition；On the other hand, even if passing through highly sensitive detecting instrument Seepage place is determined, is wanted to bearing higher SF6Micro- ooze of gas pressure is a little blocked, and technology is not reached at present 's；SF6Gas permeation amount has relation with weather, temperature, environment, judges that the how long rear pressure of seepage reaches how many, at present Technology is not accomplished equally.
SF6Inside electric appliance fills SF6Gas, SF6Gas plays arc extinguishing and insulating effect, stores SF6The air chamber of gas Pass through the non-return valve and atmosphere in equipment with the external world.Work as SF6Each position sealing joint of electrical equipment is not tight, housing has sand When situations such as eye, environment temperature rapid drawdown, occurs, inside electric appliance SF6Gas pressure intensity can reduce, SF6Gas pressure intensity persistently reduces Directly affect insulation of electrical installation, SF6Gas pressure intensity is too low to cause equipment burnout, therefore works as SF6Gas pressure intensity is necessary after reducing Carry out tonifying Qi.At present, SF6Electrical equipment gas replenishment process all takes manual operations, installs by hand, removes inflatable interface in fact Existing SF6Air chamber non-return valve is closed and opened, and causes inflation work can not realize Automated condtrol.
Because of SF6Electrical equipment is away from urban district, SF6Electrical equipment low pressure time of fire alarming is not known, SF6Electric equipment operation When gas pressure can not remotely monitor, happen suddenly SF6Tonifying Qi work brings great difficulty, emergency worker after gas pressure intensity reduces Power, emergency vehicles must ensure at 24 hours moment.SF6Electrical equipment price is high, and exchange device is difficult, the industrial household electricity model of carrying Enclose extensively, power failure is not easy, SF6Tonifying Qi work is a kind of burst after gas pressure intensity reduces, the time is uncertain, perplexs SF6Electrically set The problem of standby attendant.
The content of the invention
The technical problem to be solved in the present invention is to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of SF6Electrical equipment is certainly Online making-up air device is moved, tonifying Qi is stable, securely and reliably, can reduce air leakage point to greatest extent, effectively avoid SF6Gas leakage is made Into SF6The phenomenon of electrical equipment gas pressure rapid drawdown, and can realize that remote auto control gathers with pressure information, realization exists in real time Line tonifying Qi, a large amount of manpower and materials are saved, substantially reduce SF6Electric equipment maintenance and replacement cost.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of SF6Electrical equipment automatic on-line is mended Device of air, including execution unit, control unit and power supply；Execution unit include be sequentially connected electric controlled gas-compensation valve, copper pipe, first Pipe interface, first pressure sensor, triple valve, magnetic valve, second pressure sensor, the second pipe interface, pressure-reducing valve, SF6 Gas cylinder main valve and SF6Gas cylinder；It is connected as seal of tube connection；Control unit includes main control module, wireless transport module and relay Device module；Main control module is electric with first pressure sensor, second pressure sensor, wireless transport module and relay module respectively Connection；Control coil of the relay module respectively with electric controlled gas-compensation valve and magnetic valve electrically connects；Power supply respectively to electric controlled gas-compensation valve, First pressure sensor, second pressure sensor, magnetic valve and wireless transport module provide electric power.
Preferably, electric controlled gas-compensation valve includes valve element, bonnet, inflation non-return valve interface and inflation loop copper pipe interface；Inflation Non-return valve interface and SF6The inflation non-return valve of air chamber is tightly connected；Inflation loop copper pipe interface is connected with sealing copper pipe；Valve element is Proportion magnetic valve core；Inflation non-return valve interface is fixed at the outlet side of valve element, and is tightly connected with the outlet side of valve element；Bonnet Sealed between valve element inlet end and inflation loop copper pipe interface, and with the inlet end of valve element and inflation loop copper pipe interface Connection.
Preferably, proportion magnetic valve core includes yoke, coil, spacing ring, magnetism-isolating loop, housing, inner cap, adjusting screw, bullet Spring, armature, every magnetic bearing ring and guide sleeve；The central axial of adjusting screw is provided with passage；It is in parallel on coil to be provided with warning lamp.
Preferably, it is replaceable flange form interface to inflate non-return valve interface；Replaceable flange form interface and inflation loop copper Interface tube is accurate Al-alloy parts.
Preferably, copper pipe is seamless copper tube, is wrapped outside seamless copper tube and is provided with sheath.
Preferably, first pressure sensor and second pressure sensor are 304 stainless steel air pressure transmitters；Magnetic valve is Normally closed type brass explosion-proof solenoid valve；Pressure-reducing valve is SF6Pressure-stabilizing pressure regulation valve.
Preferably, triple valve is T-shaped 304 Stainless steel tee ball valve, and the valve stem seal of T-shaped 304 Stainless steel tee ball valve is true Expect for polytetrafluoroethylene (PTFE)；The two straight-through access portals of T-shaped 304 Stainless steel tee ball valve connect the first of triple valve both ends respectively Pressure sensor and magnetic valve, Article 3 vertical channel are in disconnected position state, i.e., are not connected with pipeline.
Preferably, main control module is Raspberry Pi.
Preferably, wireless transport module is GPRS/GSM wireless modules.
Preferably, relay module includes No. 2 relays.
It is using beneficial effect caused by above-mentioned technical proposal：SF provided by the invention6Electrical equipment automatic on-line Making-up air device, compact-sized, good airproof performance；Using electric controlled gas-compensation valve, make tonifying Qi power output standard constant, bearing SF6Non-return valve Remain to keep stable state in the case of thrust, eliminate shaking interference, tonifying Qi is stable, and securely and reliably, electric controlled gas-compensation valve is only being set Standby side SF6Gas detects and SF6Energization acts during the online tonifying Qi of electrical equipment low pressure, under electric controlled gas-compensation valve power failure state, SF6Non-return valve is not acted on by external force, keeps sealing state；The device can reduce air leakage point to greatest extent, even in inflating back When the pernicious failure that road is surprisingly broken occurs, SF6Non-return valve remains to action message, effectively prevents SF6Electrical equipment SF6Gas is let out Dew causes gas pressure dip；Comprising electric control elements such as magnetic valve, pressure sensor and relays in the device, make the dress Put and be advantageously implemented SF6The Automated condtrol of tonifying Qi process, and using Raspberry Pi as main control module, the nothing of combining wireless module Line signal transfer functions, SF can be realized6The remote auto control of electrical equipment tonifying Qi gathers with pressure information, and attendant can To gather SF whenever and wherever possible6The pressure information of electrical equipment, and long-range real-time online tonifying Qi operation is realized under mandate, save big Manpower and materials are measured, substantially reduce SF6Electric equipment maintenance and replacement cost.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the structural representation of electric controlled gas-compensation valve 1 in Fig. 1；
Fig. 3 is the connection block diagram of control unit 100 in Fig. 1.
In figure：1st, electric controlled gas-compensation valve；11st, valve element；1101st, yoke；1102nd, coil；1103rd, spacing ring；1104th, every magnetic Ring；1105th, housing；1106th, inner cap；1107th, adjusting screw；1108th, spring；1109th, armature；1110th, every magnetic bearing ring； 1111st, guide sleeve；1112nd, passage；12nd, bonnet；13rd, non-return valve interface is inflated；14th, loop copper pipe interface is inflated；15th, warn Lamp；2nd, copper pipe；3rd, the first pipe interface；4th, first pressure sensor；5th, triple valve；6th, magnetic valve；7th, second pressure sensor； 8th, the second pipe interface；9th, pressure-reducing valve；10、SF6Gas cylinder main valve；16、SF6Gas cylinder；100th, control unit；101st, check is inflated Valve；102、SF6Air chamber；103rd, power supply；104th, main control module；105th, wireless transport module；106th, relay module.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
A kind of SF6Electrical equipment automatic on-line making-up air device, as shown in figure 1, including execution unit, the and of control unit 100 Power supply 103.
Execution unit includes electric controlled gas-compensation valve 1, copper pipe 2, the first pipe interface 3, the first pressure sensor being sequentially connected 4th, triple valve 5, magnetic valve 6, second pressure sensor 7, the second pipe interface 8, pressure-reducing valve 9, SF6Gas cylinder main valve 10 and SF6Gas Bottle 16, the connection between above-mentioned each part is seal of tube connection, and the specific order of connection is, in SF6The inflation non-return valve of air chamber 102 Electric controlled gas-compensation valve 1 is installed, inflation non-return valve 101 is tightly connected with electric controlled gas-compensation valve 1, and electric controlled gas-compensation valve 1 passes through copper pipe 2 on 101 Successively with the first pipe interface 3, first pressure sensor 4, triple valve 5, magnetic valve 6, the pipeline of second pressure sensor 7 and second The seal pipe of interface 8 connect, the second pipe interface 8 pass behind copper pipe 2 again with pressure-reducing valve 9, SF6Gas cylinder main valve 10 and SF6Gas cylinder 16 are connected.In specific implementation, installed for convenience of device, the first pipe interface 3, first pressure sensor 4, triple valve 5, magnetic valve 6th, second pressure sensor 7 and control unit 100 are located in a casing, during tonifying Qi, are set as an entirety with other Standby connection, the first pipe interface 3 and the second pipe interface 8 are outside casing, for be connected with outside other equipment, two interfaces and The connection of casing external equipment is tightly connected by copper pipe 2, the registration of first pressure sensor 4 and second pressure sensor 7 Table is located at box outer surface, the barometric information measured beneficial to observation.
Electric controlled gas-compensation valve 1 includes valve element 11, bonnet 12, replaceable flanged inflation non-return valve interface 13 and inflation loop Copper pipe interface 14.In specific implementation, inflation non-return valve interface 13 and SF6The inflation non-return valve 101 of air chamber 102 is tightly connected, and is filled Air circuit copper pipe interface 4 is tightly connected with being connected the copper pipe 2 of the first pipe interface 3.Valve element 11 is proportion magnetic valve core, and ratio is electric Magnet valve core includes yoke 1101, coil 1102, spacing ring 1103, magnetism-isolating loop 2204, housing 1105, inner cap 1106, adjusting screw 1107th, spring 1108, armature 1109, every magnetic bearing ring 1110 and guide sleeve 1111.Bonnet 12 is located at the inlet end of valve element 11 with filling Between air circuit copper pipe interface 14, seal washer, inflation non-return valve interface 13 are installed successively on yoke 1101, in bonnet 12 Seal washer and inflation loop copper pipe interface 14 are installed in outside successively, and forming gas in 1107 central axial perforate of adjusting screw leads to Road, i.e. passage 1112.In order to better ensure that sealing, seal washer is installed additional between yoke 1101 and housing 1105, Seal washer is installed additional between the inner side of bonnet 12 and housing 1105.It is replaceable flanged in order to mitigate the weight of electric controlled gas-compensation valve Inflation non-return valve interface 13 and inflation loop copper pipe interface 14 are made using accurate aluminium alloy.
Copper pipe 2 is seamless copper tube, and outside also bag is provided with sheath, and seamless copper tube easily connects, be in light weight, low temperature intensity Height, and can bend, deform, it is non-leakage, not combustion-supporting, do not produce toxic gas, be corrosion-resistant, be advantageous to SF6Tonifying Qi process. First pressure sensor 4 and second pressure sensor 7 are 304 stainless steel air pressure transmitters, 304 stainless steel air pressure transmitter energy The air pressure range of sensing is -0.1~10MPA, and operating ambient temperature is -30 DEG C~80 DEG C；Triple valve 5 is T-shaped 304 stainless steel three Pass ball valve, the valve stem seal wads of T-shaped 304 Stainless steel tee ball valve is polytetrafluoroethylene (PTFE), T-shaped 304 Stainless steel tee ball valve Two access portals led directly in three passways connect the first pressure sensor 4 and magnetic valve 6 at the both ends of triple valve 5 respectively, the Three vertical channels are in disconnected position state, i.e., are not connected with pipeline；Magnetic valve 6 is normally closed type brass explosion-proof solenoid valve；Pressure-reducing valve 9 For SF6Pressure-stabilizing pressure regulation valve.
Control unit 100 includes main control module 104, wireless transport module 105 and relay module 106.Main control module 104 Pass through wire with first pressure sensor 4, second pressure sensor 5, wireless transport module 105 and relay module 106 respectively Electrical connection；Control coil of the relay module 106 respectively with electric controlled gas-compensation valve 1 and magnetic valve 6 is electrically connected by wire.
Main control module 104 is Raspberry Pi, i.e. card computer, and the present embodiment uses Raspberry Pi 2 generation Raspberry Pi 2 In Type B, be the mini PC based on four core ARM Cortex-A7 BCM2836, provided with 1GB internal memories, Micro SD card slots, 40PIN interfaces, Win10 systems are supported, VNC is installed in Raspberry Pi（VNC is a outstanding remote control software of increasing income）, just With remote control data acquisition and procession can be made more convenient.
Wireless transport module 105 is GPRS/GSM wireless modules, and the present embodiment uses the wireless moulds of GSM GPRS Shield Block, it is the 4 frequency GPRS/GSM modules based on SIM900, while supports 4 kinds of standard frequency range 850/900/1800/1900MHz, has Send SMS messaging, the function that all GPRS mobile phones such as make a phone call, fax possess, be a integrated lists of patch-type GSM/GPRS Chip, using ARM926EJ-S kernel, two kinds of serial ports patterns.In specific implementation, wireless transport module 105 passes through radio communication Exchanged information with the mobile phone in operating personnel's hand, the pressure information of equipment is sent into mobile phone, mobile phone also can be remotely by raspberry The control instruction of group is sent to relay module 106, realizes remote control.
Relay module 106 is five pin relays, including No. 2 relays, controls magnetic valve 6 all the way, controls all the way automatically controlled Aeration valve 1.
Power supply 103 is respectively to electric controlled gas-compensation valve 1, first pressure sensor 4, second pressure sensor 5, magnetic valve 6 and nothing Line transport module 105 provides 220V direct currents.
In specific implementation, the SF of the present embodiment offer6The tonifying Qi operating procedure of electrical equipment automatic on-line making-up air device It is as follows：
The first step, connect SF6Gas cylinder 16, pressure-reducing valve 9 is arranged on SF6On gas cylinder main valve 10, with 0.5 meter long of copper pipe 2 Pressure-reducing valve 9 and the second pipe interface 8 are linked into an integrated entity, screw thread is utilized after two connectors smearing stop-leak compound of the both sides of copper pipe 2 Compress, be effectively isolated with air；
Second step, connection electric controlled gas-compensation valve 1, is connect electric controlled gas-compensation valve 1 and the first pipeline with another copper pipe 23 meters long Mouth 3 links together, and is compressed simultaneously using screw thread after two connectors smearing stop-leak compound of the both sides of copper pipe 2, air is effectively isolated；
3rd step, connect SF6Electrical equipment, electric controlled gas-compensation valve 1 is arranged on inflation non-return valve 101, is to SF6Air chamber Pipe passage preparation is carried out in 102 inflations；
4th step, loop check check whether three interfaces of triple valve 5 are in disconnected position state；
5th step, pipeline inflation, manual unlocking SF6Gas cylinder main valve 10, observed when opening shown in the gauge outfit of pressure-reducing valve 9 Pressure, when the pressure shown in the gauge outfit of pressure-reducing valve 9 is more than SF6During 102 nameplate rated pressure 0.2MPa of air chamber, stop SF6Gas cylinder main valve The unlatching operation of door 10；
6th step, source of the gas lateral pressure check and correction, uses the Android mobile phone SSH in operating personnel's hand（Secure Shell, referred to as SSH, the security protocol being built upon on the basis of application layer and transport layer）Remote control Raspberry Pi, instruction GSM GPRS Shield Expansion board wireless transport module 105 reports and submits the SF that second pressure sensor 7 measures by short message6Gas pressure, and and SF6Subtract Pressure ratio shown in the gauge outfit of pressure valve 9 is compared with the performance of judgement second pressure sensor 7；
7th step, gas cylinder lateral line air is excluded, uses the Android mobile phone SSH remote control raspberries in operating personnel's hand Group, passes through Raspberry Pi GPIO（General Purpose Input Output, abbreviation GPIO, or bus extender, it is general defeated Enter/export）Control relay module 106, triggering magnetic valve 6 are opened, manually operated triple valve 5, make one of triple valve 5 to lead directly to Path is formed between passway and magnetic valve 6, excludes the air pocket in pipeline, ensures SF in pipeline6Gas degree of purity, exclude empty The time of gas is no less than 2 minutes, in pipeline after cleaning gas, manual-lock triple valve 5, reuses Android mobile phone SSH and remotely controls Raspberry Pi processed, by Raspberry Pi GPIO control relays module 106, triggering magnetic valve 6 is closed；
8th step, remover apparatus lateral line air, manually operated triple valve 5, make a put-through channel mouth of triple valve 5 with The inlet end of electric controlled gas-compensation valve 1 is connected, and using Android mobile phone SSH remote control Raspberry Pis, relay is controlled by Raspberry Pi GPIO Device module 106, triggering electric controlled gas-compensation valve 1 are opened, confirm inlet end circuit air exclude it is clean after, manual-lock triple valve immediately 5, Android mobile phone SSH remote control Raspberry Pis are reused, by Raspberry Pi GPIO control relays module 106, trigger automatically controlled benefit Air valve 1 is closed；
9th step, the check and correction of equipment pressure, use Android mobile phone SSH remote control Raspberry Pis, instruction GSM GPRS Shield Expansion board wireless transport module 105 reports and submits the SF that first pressure sensor 4 measures by short message6Gas pressure, and and SF6Gas The pressure gauge installed on room 102 is compared, and judges the performance of first pressure sensor 4；Manually operated triple valve 5, makes threeway Path is formed between valve 5, the inlet end of electric controlled gas-compensation valve 1 and magnetic valve 6, to the third channel mouth in disconnected position state of triple valve 5 Blocked, reduce breakthrough to greatest extent and increase operational reliability；
Tenth step, equipment Stress appraisal, equipment Stress appraisal is remotely carried out according to equipment leakage situation, assessment cycle behaves The 1/3 of work aerating cycle is advisable, and when being less than 1 day assessment cycle, seepage equipment should have a power failure processing；When the next day environment temperature range of decrease During more than 5 degrees Celsius, increase by 1 Stress appraisal；
11st step, remote equipment Stress appraisal, using Android mobile phone SSH remote control Raspberry Pis, utilize Raspberry Pi GPIO control relays module 106, triggering electric controlled gas-compensation valve 1 are opened, closed after three minutes；
Using Android mobile phone SSH remote control Raspberry Pis, GSM GPRS Shield expansion board wireless transport modules are instructed 105 report and submit the numerical value of first pressure sensor 4 by short message, and whether manual evaluation needs tonifying Qi；
12nd step, long-range tonifying Qi, source of the gas lateral pressure is read, use Android mobile phone SSH remote control Raspberry Pis, instruction GSM GPRS Shield expansion board wireless transport module 105 reports and submits the numerical value of second pressure sensor 7 by short message；Valve opening aerating, Using Android mobile phone SSH remote control Raspberry Pis, pass through Raspberry Pi GPIO control relays module 106, triggering electric controlled gas-compensation valve 1 Open, triggering magnetic valve 6 is opened；Assessed in fueling process, at interval of 5 minutes, use Android mobile phone SSH remote control raspberries Group, by Raspberry Pi GPIO control relays module 106, triggering magnetic valve 6 is closed, remote using Android mobile phone SSH after one minute Process control Raspberry Pi, instruction GSM GPRS Shield expansion board wireless transport module 105 report and submit first pressure to sense by short message The numerical value of device 4 and second pressure sensor 7, manual evaluation tonifying Qi effect；Continue tonifying Qi, repeat above-mentioned valve opening aerating, aerating During two steps assessing, until meeting the requirements；
13rd step, device are removed, remover apparatus lateral line SF6Gas is simultaneously hunted leak, and manually operated triple valve 5, makes threeway One put-through channel mouth of valve 5 is connected with the inlet end of electric controlled gas-compensation valve 1, confirms SF in inlet end pipeline6Gas excludes totally, Block the third channel mouth 2 minutes in disconnected position state of triple valve 5 with finger, judge no pressure during release；Slowly tear open Except the electric controlled gas-compensation valve 1 of dead electricity, sealed interface position is constantly tested in demolishing process without air pressure, when finding have outside gas It should recover and ascertain the reason immediately when oozing, until electric controlled gas-compensation valve 1 is pulled down, this work is carried out preferably during interruption maintenance； The other parts of device are removed successively, and this process has no special requirements.
The SF that the present embodiment provides6Electrical equipment automatic on-line making-up air device, compact-sized, good airproof performance；Using automatically controlled Aeration valve, make tonifying Qi power output standard constant, bearing SF6Remain to keep stable state in the case of non-return valve thrust, elimination is trembled Dynamic interference, tonifying Qi is stable, and securely and reliably, electric controlled gas-compensation valve is only in equipment side SF6Gas detects and SF6Electrical equipment low pressure Energization acts during online tonifying Qi, under electric controlled gas-compensation valve power failure state, SF6Non-return valve is not acted on by external force, keeps sealing state； The device can reduce air leakage point to greatest extent, when the pernicious failure generation that loop is surprisingly broken is inflated, SF6Non-return valve Action message is remained to, effectively prevents SF6Electrical equipment SF6Gas leakage causes gas pressure dip；Electricity is included in the device The electric control elements such as magnet valve, pressure sensor and relay, the device is set to be advantageously implemented SF6The Automated condtrol of tonifying Qi process, And SF the transmission of wireless signals function of combining wireless module, can be realized as main control module using Raspberry Pi6Electrical equipment is mended The remote auto control of gas gathers with pressure information, and attendant can gather SF whenever and wherever possible6The pressure information of electrical equipment, And long-range real-time online tonifying Qi operation is realized under mandate, a large amount of manpower and materials are saved, substantially reduce SF6Electric equipment maintenance and Replacement cost.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and there is stronger adaptability and optimal implementation to imitate for it Fruit, can be according to the non-essential technical characteristic of increase and decrease be actually needed, to meet the needs of different situations.

Claims (9)

  1. A kind of 1. SF6Electrical equipment automatic on-line making-up air device, it is characterised in that：Including execution unit, control unit（100）With Power supply（103）；The execution unit includes the electric controlled gas-compensation valve being sequentially connected（1）, copper pipe（2）, the first pipe interface（3）, One pressure sensor（4）, triple valve（5）, magnetic valve（6）, second pressure sensor（7）, the second pipe interface（8）, pressure-reducing valve （9）、SF6Gas cylinder main valve（10）And SF6Gas cylinder（16）；It is described to be connected as seal of tube connection；Described control unit（100）Including Main control module（104）, wireless transport module（105）And relay module（106）；The main control module（104）Respectively with it is described First pressure sensor（4）, second pressure sensor（5）, wireless transport module（105）And relay module（106）Electrical connection； The relay module（106）Respectively with the electric controlled gas-compensation valve（1）And magnetic valve（6）Control coil electrical connection；The electricity Source（103）Respectively to the electric controlled gas-compensation valve（1）, first pressure sensor（4）, second pressure sensor（5）, magnetic valve（6） And wireless transport module（105）Electric power is provided；When the first pressure sensor（4）The pipeline air pressure detected is less than SF6Gas Room（102）During defined air pressure, the main control module（104）Instruction is sent, controls the relay module（106）, driving institute State electric controlled gas-compensation valve（1）And magnetic valve（6）Action, makes electric controlled gas-compensation valve（1）Inlet end, triple valve（5）With magnetic valve（6）Between structure Into tonifying Qi path, during tonifying Qi, the first pressure sensor is gathered in time（4）With second pressure sensor（7）Numerical value, Until air pressure meets the requirements；The electric controlled gas-compensation valve（1）Including valve element（11）, bonnet（12）, inflation non-return valve interface（13）With Inflate loop copper pipe interface（14）；The inflation non-return valve interface（13）With SF6Air chamber（102）Inflation non-return valve（101）It is close Envelope connection；The inflation loop copper pipe interface（14）With the copper pipe（2）It is tightly connected；The valve element（11）For proportion magnetic valve Core；The inflation non-return valve interface（13）It is fixed at the valve element（11）Outlet side, and with the valve element（11）Outlet End is tightly connected；The bonnet（12）Located at the valve element（11）Inlet end and the inflation loop copper pipe interface（14）Between, And with the valve element（11）Inlet end and it is described inflation loop copper pipe interface（14）It is tightly connected.
  2. 2. SF according to claim 16Electrical equipment automatic on-line making-up air device, it is characterised in that：The proportion magnetic valve Core includes yoke（1101）, coil（1102）, spacing ring（1103）, magnetism-isolating loop（1104）, housing（1105）, inner cap（1106）、 Adjusting screw（1107）, spring（1108）, armature（1109）, every magnetic bearing ring（1110）And guide sleeve（1111）；The regulation Screw（1107）Central axial be provided with passage（1112）；The coil（1102）Upper parallel connection is provided with warning lamp（15）.
  3. 3. SF according to claim 1 or 26Electrical equipment automatic on-line making-up air device, it is characterised in that：The inflation is inverse Only valve interface（13）For replaceable flange form interface；The replaceable flange form interface and inflation loop copper pipe interface（14）It is Accurate Al-alloy parts.
  4. 4. SF according to claim 16Electrical equipment automatic on-line making-up air device, it is characterised in that：The copper pipe（2）For Seamless copper tube, seamless copper tube outside bag are provided with sheath.
  5. 5. SF according to claim 16Electrical equipment automatic on-line making-up air device, it is characterised in that：The first pressure passes Sensor（4）With the second pressure sensor（7）It is 304 stainless steel air pressure transmitters；The magnetic valve（6）It is yellow for normally closed type Copper explosion-proof solenoid valve；The pressure-reducing valve（9）For SF6Pressure-stabilizing pressure regulation valve.
  6. 6. SF according to claim 16Electrical equipment automatic on-line making-up air device, it is characterised in that：The triple valve（5） For T-shaped 304 Stainless steel tee ball valve, the valve stem seal wads of the T-shaped 304 Stainless steel tee ball valve is polytetrafluoroethylene (PTFE)；Institute State triple valve（5）A passage be in disconnected position state.
  7. 7. SF according to claim 16Electrical equipment automatic on-line making-up air device, it is characterised in that：The main control module （104）For Raspberry Pi.
  8. 8. SF according to claim 16Electrical equipment automatic on-line making-up air device, it is characterised in that：It is described to be wirelessly transferred mould Block（105）For GPRS/GSM wireless modules.
  9. 9. SF according to claim 16Electrical equipment automatic on-line making-up air device, it is characterised in that：The relay module （106）Including No. 2 relays.
CN201511010710.3A 2015-12-30 2015-12-30 SF6 electrical equipment automatic on-line making-up air devices Active CN105627086B (en)

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CN106647605A (en) * 2016-12-28 2017-05-10 国网江苏省电力公司检修分公司 Intelligent gas supplementation and mini-amount water monitoring device for SF6 electrical equipment
CN107842711A (en) * 2017-12-07 2018-03-27 广西电网有限责任公司南宁供电局 Intelligent integrated formula SF6Equipment gas treatment equipment
CN107766062B (en) * 2017-12-08 2021-02-09 北京小米移动软件有限公司 Method and system for installing software and first terminal
CN108443700A (en) * 2018-02-02 2018-08-24 国网青海省电力公司西宁供电公司 A kind of sulfur hexafluoride combined electric appliance gas charged for replacement control device
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CN110486619B (en) * 2019-08-30 2021-01-22 国网新疆电力有限公司吐鲁番供电公司 Sulfur hexafluoride gas supplementing system and method
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