CN105627086A - Automatic on-line gas supplement unit for SF6 electrical equipment - Google Patents
Automatic on-line gas supplement unit for SF6 electrical equipment Download PDFInfo
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- CN105627086A CN105627086A CN201511010710.3A CN201511010710A CN105627086A CN 105627086 A CN105627086 A CN 105627086A CN 201511010710 A CN201511010710 A CN 201511010710A CN 105627086 A CN105627086 A CN 105627086A
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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)
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- 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
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- 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
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- 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
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- 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)
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- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses an automatic on-line gas supplement unit for SF6 electrical equipment, and relates to the technical field of the SF6 electrical equipment. The automatic on-line gas supplement unit comprises an execution unit, a control unit and a power supply. The execution unit comprises an electronic control gulp valve, a copper tube, a first pipeline connector, a first pressure sensor, a three-way valve, an electromagnetic valve, a second pressure sensor, a second pipeline connector, a pressure reducing valve, an SF6 gas cylinder main valve and an SF6 gas cylinder. The control unit comprises a main control module, a wireless transmission module and a relay module. The main control module is electrically connected with the first pressure sensor, the second pressure sensor, the wireless transmission module and the relay module. The relay module is electrically connected with the electronic control gulp valve and a control coil of the electromagnetic valve. The automatic on-line gas supplement unit for the SF6 electrical equipment, provided by the invention, is stable in gas supplement, safe and reliable, can achieve remote automatic control and pressure information acquisition of the gas supplement process, and can greatly lower the cost of maintaining and replacing of the SF6 electrical equipment.
Description
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, just by the SF after compression from the sixties in 20th century6Gas successful Application is on the power equipments such as high-voltage switch gear. Through years development, SF6Isolating switch, GIS(sulfur hexafluoride sealed combination electrical equipment), GIL(gas-insulated metal closed power transmission line) etc. electric installation become electric installation main flow, SF6The application of electric installation is tending towards extensive.
Along with high ferro, intelligence household, charging continuous popularization in society of automobile, elevator, various circles of society are more and more higher to the requirement of the quality of power supply, account for overall SF6The SF of electric installation ratio only a few6Gas permeation problem exposes gradually. SF on the one hand6Electric installation seepage place is all trace seepage, and prior art finds that difficulty is big, and full and accurate seepage place not easily finds, checks that breakthrough does not possess function definition yet to equipment is out of service for a long time; On the other hand, even if determining seepage place by the detecting instrument of highly sensitive, want bearing higher SF6Micro-the oozing of gaseous tension a little carries out shutoff, and current technology is not reached yet; SF6Gas permeation amount and weather, temperature, environment all have relation, judge that the how long rear pressure of seepage reaches how many, and current technology is not accomplished equally.
SF6Inside electric appliance fills SF6Gas, SF6Gas plays arc extinguishing and insulation effect, stores SF6The air chamber of gas and the external world are by the reverse checkvalve on equipment and air UNICOM. Work as SF6Electric installation each position sealing joint is tight, housing has sand holes, envrionment temperature the situation such as suddenly to fall when occurring, inside electric appliance SF6Gas pressure intensity can reduce, SF6Gas pressure intensity continues reduction directly affects insulation of electrical installation, SF6The too low meeting of gas pressure intensity causes equipment burnout, therefore works as SF6Gas pressure intensity must carry out tonifying Qi after reducing. At present, SF6Electric installation gas replenishment process all takes manual operations, and installation by hand, dismounting inflation interface realize SF6Air chamber reverse checkvalve is closed and is opened, and causes inflation work cannot realize Automated condtrol.
Because of SF6Electric installation away from urban district, SF6Electric installation subatmospheric time of fire alarming is uncertain, SF6Gaseous tension during electric equipment operation can not remote monitoring, burst SF6After gas pressure intensity reduces, tonifying Qi work brings great difficulty, and emergency personnel's power, emergency vehicles must ensure in 24 hours moment. SF6Electric installation price height, exchange device is difficult, and the industrial household electricity scope of carrying is wide, has a power failure not easily, SF6After gas pressure intensity reduces, tonifying Qi work is that a kind of burst, time is uncertain, puzzlement SF6The difficult problem of maintenance of electric device personnel.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, it is provided that a kind of SF6Electric installation automatic on-line making-up air device, tonifying Qi is stablized, safe and reliable, can reduce gas leakage point to greatest extent, effectively avoid SF6Gas leakage causes SF6The phenomenon that electric installation gaseous tension falls suddenly, and remote auto control and pressure information collection can be realized, it is achieved real-time online tonifying Qi, save a large amount of manpower and materials, greatly reduce SF6Electric equipment maintenance and replacing cost.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of SF6Electric installation automatic on-line making-up air device, comprises actuator unit, control unit and power supply; Actuator unit comprise connect successively electric controlled gas-compensation valve, copper pipe, the first pipe interface, the first pressure transmitter, T-valve, magnetic valve, the 2nd pressure transmitter, the 2nd pipe interface, reducing valve, SF6Gas cylinder main valve and SF6Gas cylinder; Connect for the seal of tube connects; Control unit comprises master control module, transmission over radio module and relay module; Master control module is electrically connected with the first pressure transmitter, the 2nd pressure transmitter, transmission over radio module and relay module respectively; Relay module is electrically connected with the control coil of electric controlled gas-compensation valve and magnetic valve respectively; Power supply is respectively to electric controlled gas-compensation valve, the first pressure transmitter, the 2nd pressure transmitter, magnetic valve and transmission over radio modules with power.
Preferably, electric controlled gas-compensation valve comprises spool, valve gap, inflation reverse checkvalve interface and inflation loop copper interface tube; Inflation reverse checkvalve interface and SF6The inflation reverse checkvalve of air chamber is tightly connected; Inflation loop copper interface tube is connected with sealing copper pipe; Spool is proportion magnetic valve core; Inflation reverse checkvalve interface is fixed at the outlet side of spool, and the outlet side with spool is tightly connected; Valve gap is located between spool air inlet end and inflation loop copper interface tube, and the air inlet end and inflation loop copper interface tube with spool is all tightly connected.
Preferably, proportion magnetic valve core comprise yoke, coil, spacing ring, magnetism-isolating loop, housing, Nei Gai, set screw, spring, armature, every magnetic sustained ring and orienting sleeve; The center of set screw is axially arranged with ventilating pit; On coil, parallel connection is provided with warning lamp.
Preferably, reverse checkvalve interface is inflated for flange form interface can be replaced; Flange form interface can be replaced and inflate loop copper interface tube and be Precision Aluminum alloy components.
Preferably, copper pipe is seamless copper tube, and seamless copper tube outside bag is provided with sheath.
Preferably, the first pressure transmitter and the 2nd pressure transmitter are 304 stainless steel gas pressure transmitters; Magnetic valve is normally closed formula brass explosion-proof solenoid valve; Reducing valve is SF6Pressure-stabilizing pressure regulation valve.
Preferably, T-valve is T-shaped 304 stainless steel tee ball valves, and the valve stem seal of T-shaped 304 stainless steel tee ball valves is really expected for tetrafluoroethylene; First pressure transmitter at the two straight-through access portal difference connecting tee valve two ends of T-shaped 304 stainless steel tee ball valves and magnetic valve, Article 3 vertical channel is in disconnected position state, is not namely connected with pipeline.
Preferably, master control module is raspberry group.
Preferably, transmission over radio module is GPRS/GSM wireless module.
Preferably, relay module comprises No. 2 rly.s.
The useful effect adopting technique scheme to produce is: SF provided by the invention6Electric installation automatic on-line making-up air device, compact construction, good airproof performance; Adopt electric controlled gas-compensation valve, make tonifying Qi power output standard constant, bearing SF6Still keeping steady state when reverse checkvalve thrust, eliminate shaking interference, tonifying Qi is stablized, safe and reliable, and electric controlled gas-compensation valve is only at equipment side SF6Gas detection and SF6Energising action during the online tonifying Qi of electric installation subatmospheric, under electric controlled gas-compensation valve power failure state, SF6Reverse checkvalve, not by external force effect, keeps sealed state; This device can reduce gas leakage point to greatest extent, even if when inflating the pernicious fault surprisingly ruptured in loop and occur, and SF6Reverse checkvalve still can action message, effectively prevent SF6Electric installation SF6Gas leakage causes gaseous tension dip; This device comprises the electric control elements such as magnetic valve, pressure transmitter and rly., makes this device be conducive to realizing SF6The Automated condtrol of tonifying Qi process, and adopt raspberry to send as master control module, the transmission of wireless signals function of combining wireless module, can realize SF6Remote auto control and the pressure information collection of electric installation tonifying Qi, maintenance personnel can gather SF whenever and wherever possible6The pressure information of electric installation, and under authorizing, realize long-range real-time online tonifying Qi operation, save a large amount of manpower and materials, greatly reduce SF6Electric equipment maintenance and replacing cost.
Accompanying drawing explanation
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: 1, electric controlled gas-compensation valve; 11, spool; 1101, yoke; 1102, coil; 1103, spacing ring; 1104, magnetism-isolating loop; 1105, housing; 1106, Nei Gai; 1107, set screw; 1108, spring; 1109, armature; 1110, every magnetic sustained ring; 1111, orienting sleeve; 1112, ventilating pit; 12, valve gap; 13, reverse checkvalve interface is inflated; 14, loop copper interface tube is inflated; 15, warning lamp; 2, copper pipe; 3, the first pipe interface; 4, the first pressure transmitter; 5, T-valve; 6, magnetic valve; 7, the 2nd pressure transmitter; 8, the 2nd pipe interface; 9, reducing valve; 10, SF6Gas cylinder main valve; 16, SF6Gas cylinder; 100, control unit; 101, reverse checkvalve is inflated; 102, SF6Air chamber; 103, power supply; 104, master control module; 105, transmission over radio module; 106, relay module.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
A kind of SF6Electric installation automatic on-line making-up air device, as shown in Figure 1, comprises actuator unit, control unit 100 and power supply 103.
Actuator unit comprise connect successively electric controlled gas-compensation valve 1, copper pipe 2, first pipe interface 3, first pressure transmitter 4, T-valve 5, magnetic valve 6, the 2nd pressure transmitter 7, the 2nd pipe interface 8, reducing valve 9, SF6Gas cylinder main valve 10 and SF6Gas cylinder 16, the connection between above-mentioned each parts is that the seal of tube connects, and the concrete order of connection is, at SF6The inflation reverse checkvalve 101 of air chamber 102 installs electric controlled gas-compensation valve 1, inflation reverse checkvalve 101 is tightly connected with electric controlled gas-compensation valve 1, electric controlled gas-compensation valve 1 is connected with the first pipe interface 3, first pressure transmitter 4, T-valve 5, magnetic valve 6, the 2nd pressure transmitter 7 and the 2nd pipe interface 8 sealed tube successively by copper pipe 2, the 2nd pipe interface 8 pass behind copper pipe 2 again with reducing valve 9, SF6Gas cylinder main valve 10 and SF6Gas cylinder 16 is connected. in concrete enforcement, install for convenience of device, first pipe interface 3, first pressure transmitter 4, T-valve 5, magnetic valve 6, 2nd pressure transmitter 7 and control unit 100 are located in a casing, in tonifying Qi process, integrally with other equipment connections, first pipe interface 3 and the 2nd pipe interface 8 are located at outside casing, for with other equipment connections outside, the connection of two interfaces and casing peripheral equipment is all tightly connected by copper pipe 2, box outer surface is located at by the registration table of the first pressure transmitter 4 and the 2nd pressure transmitter 7, it is beneficial to the air pressure data observed and record.
Electric controlled gas-compensation valve 1 comprises spool 11, valve gap 12, can replace flanged inflation reverse checkvalve interface 13 and inflation loop copper interface tube 14. In concrete enforcement, inflation reverse checkvalve interface 13 and SF6The inflation reverse checkvalve 101 of air chamber 102 is tightly connected, and inflation loop copper interface tube 4 is tightly connected with the copper pipe 2 being connected the first pipe interface 3. Spool 11 is proportion magnetic valve core, proportion magnetic valve core comprise yoke 1101, coil 1102, spacing ring 1103, magnetism-isolating loop 2204, housing 1105, interior lid 1106, set screw 1107, spring 1108, armature 1109, every magnetic sustained ring 1110 and orienting sleeve 1111. Valve gap 12 is located between spool 11 air inlet end and inflation loop copper interface tube 14, seal washer, inflation reverse checkvalve interface 13 are installed successively on yoke 1101, seal washer and inflation loop copper interface tube 14 are installed successively outside valve gap 12, gas passage, i.e. ventilating pit 1112 are formed in set screw 1107 center axial aperture. In order to ensure stopping property better, between yoke 1101 and housing 1105, add sealing filler ring, inside valve gap 12 and between housing 1105, add sealing filler ring. In order to alleviate the weight of electric controlled gas-compensation valve, flanged inflation reverse checkvalve interface 13 can be replaced and all adopt Precision Aluminum alloy to obtain with inflation loop copper interface tube 14.
Copper pipe 2 is seamless copper tube, and outside is also wrapped and is provided with sheath, and seamless copper tube easily connects, weight is light, low temperature intensity height, and can bend, is out of shape, non-leakage, not combustion-supporting, do not produce toxic gas, corrosion-resistant, be conducive to SF6Tonifying Qi process. First pressure transmitter 4 and the 2nd pressure transmitter 7 are 304 stainless steel gas pressure transmitters, and the air pressure range that 304 stainless steel gas pressure transmitters can be responded to is-0.1��10MPA, and Working environment temperature is-30 DEG C��80 DEG C; T-valve 5 is T-shaped 304 stainless steel tee ball valves, the valve stem seal of T-shaped 304 stainless steel tee ball valves is really expected for tetrafluoroethylene, first pressure transmitter 4 at two access portal difference connecting tee valve 5 two ends straight-through in three portholies of T-shaped 304 stainless steel tee ball valves and magnetic valve 6, Article 3 vertical channel is in disconnected position state, is not namely connected with pipeline; Magnetic valve 6 is normally closed formula brass explosion-proof solenoid valve; Reducing valve 9 is SF6Pressure-stabilizing pressure regulation valve.
Control unit 100 comprises master control module 104, transmission over radio module 105 and relay module 106. Master control module 104 is electrically connected by wire with the first pressure transmitter 4, the 2nd pressure transmitter 5, transmission over radio module 105 and relay module 106 respectively; Relay module 106 is electrically connected by wire with the control coil of electric controlled gas-compensation valve 1 and magnetic valve 6 respectively.
Master control module 104 is raspberry group, i.e. card form computer, the present embodiment adopts raspberry to send the Type B in 2 generations RaspberryPi2, it is the miniPC based on four core ARMCortex-A7BCM2836, being provided with 1GB internal memory, MicroSD card slot, 40PIN interface, support Win10 system, installing VNC(VNC in raspberry group is a outstanding remote control software of increasing income), just can Long-distance Control, make the data acquisition and procession more convenient.
Transmission over radio module 105 is GPRS/GSM wireless module, the present embodiment adopts GSMGPRSShield wireless module, it is the 4 frequency GPRS/GSM modules based on SIM900, support 4 kinds of standard frequency range 850/900/1800/1900MHz simultaneously, have send SMS messaging, make a phone call, function that all GPRS mobile phones such as fax possess, it is the integrated single-chip of a patch-type GSM/GPRS, adopts the kernel of ARM926EJ-S, two kinds of serial ports patterns. In concrete enforcement, transmission over radio module 105 is by the mobile phone intercommunication information in radio communication and operator's hand, being sent in mobile phone by the pressure information of equipment, the steering order that raspberry is sent also long-range can be sent to relay module 106 by mobile phone, it is achieved Long-distance Control.
Relay module 106 is five pin rly.s, comprises No. 2 rly.s, road Controlling solenoid valve 6, tunnel control electric controlled gas-compensation valve 1.
Power supply 103 provides 220V direct current respectively to electric controlled gas-compensation valve 1, first pressure transmitter 4, the 2nd pressure transmitter 5, magnetic valve 6 and transmission over radio module 105.
In concrete enforcement, the SF that the present embodiment provides6The tonifying Qi operation steps of electric installation automatic on-line making-up air device is as follows:
The first step, connects SF6Gas cylinder 16, is arranged on SF by reducing valve 96On gas cylinder main valve 10, reducing valve 9 and the 2nd pipe interface 8 being linked into an integrated entity with the copper pipe 2 of 0.5 meter long, two Link Ports of copper pipe 2 both sides utilize screw thread to compress after smearing stop-leak compound, effectively isolate with air;
2nd step, connects electric controlled gas-compensation valve 1, and electric controlled gas-compensation valve 1 and the first pipe interface 3 are linked together by the copper pipe 2 long with another root 3 meters, and two Link Ports of copper pipe 2 both sides utilize screw thread to compress also after smearing stop-leak compound, air is effectively isolated;
3rd step, connects SF6Electric installation, is arranged on inflation reverse checkvalve 101, for SF by electric controlled gas-compensation valve 16Air chamber 102 inflation is carried out pipe passage and is prepared;
4th step, loop checks, checks whether three interfaces of T-valve 5 are all in disconnected position state;
5th step, pipeline is inflated, manual unlocking SF6Gas cylinder main valve 10, opens while observe pressure shown in the gauge outfit of reducing valve 9, when the pressure shown in reducing valve 9 gauge outfit is greater than SF6During air chamber 102 nameplate rated pressure 0.2MPa, stop SF6The open operation of gas cylinder main valve 10;
6th step, the wall pressure check and correction of gas source, use the Android mobile phone SSH(SecureShell in operator's hand, it is called for short SSH, it is the security protocol being based upon on applied layer and transport layer basis) Long-distance Control raspberry group, instruction GSMGPRSShield expansion board transmission over radio module 105 reports and submits, by note, the SF that the 2nd pressure transmitter 7 measures6Gaseous tension, and and SF6Pressure ratio shown in reducing valve 9 gauge outfit relatively, judges the performance of the 2nd pressure transmitter 7;
7th step, get rid of gas cylinder lateral line air, it may also be useful to the Android mobile phone SSH Long-distance Control raspberry group in operator's hand, send GPIO(GeneralPurposeInputOutput by raspberry, it is called for short GPIO, or bus extension device, it is universal input/output) relay module 106, triggers magnetic valve 6 and opens, manual operation T-valve 5, make to form path between a straight-through porthole of T-valve 5 and magnetic valve 6, get rid of the plugged vents in pipeline, ensure SF in pipeline6Gas purity, the time of excluding air is no less than 2 minutes, and in pipeline after cleaning gas, manual-lock T-valve 5, re-uses Android mobile phone SSH Long-distance Control raspberry group, send GPIO relay module 106 by raspberry, triggers magnetic valve 6 and closes;
8th step, remover apparatus lateral line air, manual operation T-valve 5, a straight-through porthole of T-valve 5 and the air inlet termination of electric controlled gas-compensation valve 1 are led to, use Android mobile phone SSH Long-distance Control raspberry group, GPIO relay module 106 is sent by raspberry, trigger electric controlled gas-compensation valve 1 to open, confirm that inlet-end manifold road air is got rid of after totally, manual-lock T-valve 5 immediately, re-use Android mobile phone SSH Long-distance Control raspberry group, send GPIO relay module 106 by raspberry, trigger electric controlled gas-compensation valve 1 and close;
9th step, equipment pressure is proofreaded, it may also be useful to Android mobile phone SSH Long-distance Control raspberry is sent, and instruction GSMGPRSShield expansion board transmission over radio module 105 reports and submits, by note, the SF that the first pressure transmitter 4 measures6Gaseous tension, and and SF6The tensimeter installed on air chamber 102 is compared, and judges the performance of the first pressure transmitter 4; Manual operation T-valve 5, makes to form path between T-valve 5, electric controlled gas-compensation valve 1 air inlet end and magnetic valve 6, the third channel mouth being in disconnected position state of T-valve 5 is carried out shutoff, reduces breakthrough to greatest extent and increases serviceability;
Tenth step, equipment Stress appraisal, carries out equipment Stress appraisal according to equipment leakage situation is long-range, and assessment cycle is be advisable in the 1/3 of the artificial aerating cycle, when assessment cycle less than 1 day time, seepage equipment should have a power failure process; When the next day envrionment temperature range of decrease more than 5 degrees Celsius time, increase by 1 Stress appraisal;
11 step, long-range equipment Stress appraisal, it may also be useful to Android mobile phone SSH Long-distance Control raspberry is sent, and utilizes raspberry to send GPIO relay module 106, triggers electric controlled gas-compensation valve 1 and opens, close after three minutes;
Using Android mobile phone SSH Long-distance Control raspberry group, instruction GSMGPRSShield expansion board transmission over radio module 105 reports and submits the first pressure transmitter 4 numerical value by note, and manual evaluation is the need of tonifying Qi;
12 step, long-range tonifying Qi, reads gas source wall pressure, it may also be useful to Android mobile phone SSH Long-distance Control raspberry is sent, and instruction GSMGPRSShield expansion board transmission over radio module 105 reports and submits the 2nd pressure transmitter 7 numerical value by note; Valve opening aerating, it may also be useful to Android mobile phone SSH Long-distance Control raspberry is sent, and sends GPIO relay module 106 by raspberry, triggers electric controlled gas-compensation valve 1 and opens, and triggers magnetic valve 6 and opens; Aerating process is assessed, at interval of 5 minutes, use Android mobile phone SSH Long-distance Control raspberry group, GPIO relay module 106 is sent by raspberry, trigger magnetic valve 6 to close, after one minute, it may also be useful to Android mobile phone SSH Long-distance Control raspberry is sent, instruction GSMGPRSShield expansion board transmission over radio module 105 reports and submits the first pressure transmitter 4 and the numerical value of the 2nd pressure transmitter 7 by note, manual evaluation tonifying Qi effect; Continuing tonifying Qi, repeating two steps of assessment in above-mentioned valve opening aerating, aerating process, until meeting the requirements;
13 step, device is removed, remover apparatus lateral line SF6Gas is also hunted leak, manual operation T-valve 5, a straight-through porthole of T-valve 5 and the air inlet termination of electric controlled gas-compensation valve 1 is led to, confirms SF in inlet-end manifold road6Air scavenge is clean, blocks the third channel mouth being in disconnected position state 2 minutes of T-valve 5 with finger, judges no pressure when unclamping; Slowly remove the electric controlled gas-compensation valve 1 of dead electricity, demolishing process constantly to be tested sealed interface position without air pressure, should recovering immediately when finding that there is gas and exosmose and find out reason, until being pulled down by electric controlled gas-compensation valve 1, this work should carry out during interruption maintenance; Other parts of detaching device successively, this process has no special requirements.
The SF that the present embodiment provides6Electric installation automatic on-line making-up air device, compact construction, good airproof performance; Adopt electric controlled gas-compensation valve, make tonifying Qi power output standard constant, bearing SF6Still keeping steady state when reverse checkvalve thrust, eliminate shaking interference, tonifying Qi is stablized, and safe and reliable, electric controlled gas-compensation valve is only at equipment side SF6Gas detection and SF6Energising action during the online tonifying Qi of electric installation subatmospheric, under electric controlled gas-compensation valve power failure state, SF6Reverse checkvalve, not by external force effect, keeps sealed state; This device can reduce gas leakage point to greatest extent, even if when inflating the pernicious fault surprisingly ruptured in loop and occur, and SF6Reverse checkvalve still can action message, effectively prevent SF6Electric installation SF6Gas leakage causes gaseous tension dip; This device comprises the electric control elements such as magnetic valve, pressure transmitter and rly., makes this device be conducive to realizing SF6The Automated condtrol of tonifying Qi process, and adopt raspberry to send as master control module, the transmission of wireless signals function of combining wireless module, can realize SF6Remote auto control and the pressure information collection of electric installation tonifying Qi, maintenance personnel can gather SF whenever and wherever possible6The pressure information of electric installation, and under authorizing, realize long-range real-time online tonifying Qi operation, save a large amount of manpower and materials, greatly reduce SF6Electric equipment maintenance and replacing cost.
The above technology structural feature most preferred embodiment of the present invention, it has stronger adaptability and best implementation result, can increase and decrease the technology feature of non-necessity according to actual needs, meets the demand of different situations.
Claims (10)
1. a SF6Electric installation automatic on-line making-up air device, it is characterised in that: comprise actuator unit, control unit (100) and power supply (103); Described actuator unit comprise connect successively electric controlled gas-compensation valve (1), copper pipe (2), the first pipe interface (3), the first pressure transmitter (4), T-valve (5), magnetic valve (6), the 2nd pressure transmitter (7), the 2nd pipe interface (8), reducing valve (9), SF6Gas cylinder main valve (10) and SF6Gas cylinder (16); Described connection is that the seal of tube connects; Described control unit (100) comprises master control module (104), transmission over radio module (105) and relay module (106); Described master control module (104) is electrically connected with described first pressure transmitter (4), the 2nd pressure transmitter (5), transmission over radio module (105) and relay module (106) respectively; Described relay module (106) is electrically connected with the control coil of described electric controlled gas-compensation valve (1) and magnetic valve (6) respectively; Described power supply (103) provides electric power respectively to described electric controlled gas-compensation valve (1), the first pressure transmitter (4), the 2nd pressure transmitter (5), magnetic valve (6) and transmission over radio module (105); The pipeline air pressure detected when described first pressure transmitter (4) is lower than SF6During the air pressure that air chamber (102) specifies, described master control module (104) sends instruction, control described relay module (106), drive described electric controlled gas-compensation valve (1) and magnetic valve (6) action, make to form tonifying Qi path between electric controlled gas-compensation valve (1) air inlet end, T-valve (5) and magnetic valve (6), in tonifying Qi process, gather the numerical value of described first pressure transmitter (4) with the 2nd pressure transmitter (7) in time, until air pressure meets the requirements.
2. SF according to claim 16Electric installation automatic on-line making-up air device, it is characterised in that described electric controlled gas-compensation valve (1) comprises spool (11), valve gap (12), inflation reverse checkvalve interface (13) and inflation loop copper interface tube (14); Described inflation reverse checkvalve interface (13) and SF6The inflation reverse checkvalve (101) of air chamber (102) is tightly connected; Described inflation loop copper interface tube (14) and described copper pipe (2) are tightly connected; Described spool (11) is proportion magnetic valve core; Described inflation reverse checkvalve interface (13) is fixed at the outlet side of described spool (11), and the outlet side with described spool (11) is tightly connected; Described valve gap (12) is located between described spool (11) air inlet end and described inflation loop copper interface tube (14), and the air inlet end and described inflation loop copper interface tube (14) with described spool (11) is all tightly connected.
3. SF according to claim 26Electric installation automatic on-line making-up air device, it is characterised in that described proportion magnetic valve core comprise yoke (1101), coil (1102), spacing ring (1103), magnetism-isolating loop (1104), housing (1105), interior lid (1106), set screw (1107), spring (1108), armature (1109), every magnetic sustained ring (1110) and orienting sleeve (1111); The center of described set screw (1107) is axially arranged with ventilating pit (1112); The upper parallel connection of described coil (1102) is provided with warning lamp (15).
4. SF according to Claims 2 or 36Electric installation automatic on-line making-up air device, it is characterised in that described inflation reverse checkvalve interface (13) is for can replace flange form interface; Described flange form interface of replacing is Precision Aluminum alloy components with inflation loop copper interface tube (14).
5. SF according to claim 16Electric installation automatic on-line making-up air device, it is characterised in that described copper pipe (2) is seamless copper tube, described seamless copper tube outside bag is provided with sheath.
6. SF according to claim 16Electric installation automatic on-line making-up air device, it is characterised in that described first pressure transmitter (4) and described 2nd pressure transmitter (7) are 304 stainless steel gas pressure transmitters; Described magnetic valve (6) is normally closed formula brass explosion-proof solenoid valve; Described reducing valve (9) is SF6Pressure-stabilizing pressure regulation valve.
7. SF according to claim 16Electric installation automatic on-line making-up air device, it is characterised in that described T-valve (5) is T-shaped 304 stainless steel tee ball valves, and the valve stem seal of described T-shaped 304 stainless steel tee ball valves is really expected for tetrafluoroethylene; A passage of described T-valve (5) is in disconnected position state.
8. SF according to claim 16Electric installation automatic on-line making-up air device, it is characterised in that described master control module (104) is raspberry group.
9. SF according to claim 16Electric installation automatic on-line making-up air device, it is characterised in that described transmission over radio module (105) is GPRS/GSM wireless module.
10. SF according to claim 16Electric installation automatic on-line making-up air device, it is characterised in that described relay module (106) comprises No. 2 rly.s.
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| CN201511010710.3A CN105627086B (en) | 2015-12-30 | 2015-12-30 | SF6 electrical equipment automatic on-line making-up air devices |
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| CN201511010710.3A CN105627086B (en) | 2015-12-30 | 2015-12-30 | SF6 electrical equipment automatic on-line making-up air devices |
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| CN107766062A (en) * | 2017-12-08 | 2018-03-06 | 北京小米移动软件有限公司 | For installing the method, system and first terminal of software |
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| 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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