CN205261214U - SF6 electrical equipment automatic on -line air supplement unit - Google Patents
SF6 electrical equipment automatic on -line air supplement unit Download PDFInfo
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- CN205261214U CN205261214U CN201521118789.7U CN201521118789U CN205261214U CN 205261214 U CN205261214 U CN 205261214U CN 201521118789 U CN201521118789 U CN 201521118789U CN 205261214 U CN205261214 U CN 205261214U
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- 239000013589 supplement Substances 0.000 title abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052802 copper Inorganic materials 0.000 claims abstract description 40
- 239000010949 copper Substances 0.000 claims abstract description 40
- 240000007651 Rubus glaucus Species 0.000 claims description 27
- 235000011034 Rubus glaucus Nutrition 0.000 claims description 27
- 235000009122 Rubus idaeus Nutrition 0.000 claims description 27
- 239000010963 304 stainless steel Substances 0.000 claims description 12
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000005273 aeration Methods 0.000 abstract 2
- 229910018503 SF6 Inorganic materials 0.000 description 74
- 239000007789 gas Substances 0.000 description 51
- 238000007789 sealing Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Abstract
The utility model discloses a SF6 electrical equipment automatic on -line air supplement unit relates to SF6 electrical equipment technical field. Including execution unit, the control unit and power, execution unit is including the automatically controlled aeration valve, copper pipe, a line connection, a pressure sensor, three -way valve, solenoid valve, the 2nd pressure sensor, the 2nd line connection, relief pressure valve, SF6 gas cylinder main valve door and the SF6 gas cylinder that connect gradually, the control unit includes host system, wireless transmission module and relay module, host system is connected with a pressure sensor, the 2nd pressure sensor, wireless transmission module and relay module electricity respectively, relay module is connected with the control coil electricity of automatically controlled aeration valve and solenoid valve respectively. The utility model provides a SF6 electrical equipment automatic on -line air supplement unit, the tonifying qi is stable, and safe and reliable can realize that the remote automatic control of tonifying qi process gathers with pressing force information, greatly reduced SF6 electrical equipment maintenance and replacement cost.
Description
Technical field
The utility model relates to SF6Electrical equipment technical field.
Background technology
Because of SF6Gas has excellent insulation, arc extinguishing, heat-conductive characteristic, from the sixties in 20th century just by the SF compression6Gas successful Application is on the power equipments such as high-voltage switch gear. Through years development, SF6Breaker, GIS(sulfur hexafluoride sealed combination electrical equipment), GIL(gas-insulated metal closed power transmission line) etc. electrical equipment become electrical equipment main flow, SF6It is extensive that the application of electrical equipment is tending towards.
Along with the continuous popularization in society of high ferro, Smart Home, Rechargeable vehicle, 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 electrical equipment ratio only a few6Gas permeation problem exposes gradually. SF on the one hand6Electrical equipment seepage place is all micro-seepage, and prior art finds that difficulty is large, and full and accurate seepage place is difficult for finding, checks that to equipment is for a long time out of service breakthrough does not possess function definition yet; On the other hand, even determine seepage place by highly sensitive detecting instrument, want bearing higher SF6Micro-the oozing of gas pressure a little carried out shutoff, is also that current technology does not reach; SF6Gas permeation amount and weather, temperature, environment all have relation, judge the how long rear pressure of seepage reaches how many, and technology is not accomplished equally at present.
SF6Inside electric appliance fills SF6Gas, SF6Gas plays arc extinguishing and insulating effect, stores SF6The air chamber of gas and extraneous by the non-return valve on equipment and atmosphere UNICOM. Work as SF6The each position of electrical equipment sealing joint is tight, housing is while having the situation such as sand holes, environment temperature rapid drawdown to occur, inside electric appliance SF6Gas pressure intensity can reduce, SF6Gas pressure intensity continues to reduce 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, SF6Electrical equipment gas replenishment process is all taked manual operations, installs by hand, removes inflatable interface and realize SF6Air chamber non-return valve is closed and is opened, and causes inflation work cannot realize automation control.
Because of SF6Electrical equipment is away from urban district, SF6Electrical equipment low pressure time of fire alarming is uncertain, SF6Gas pressure when electric equipment operation can not remote monitoring, burst SF6After gas pressure intensity reduces, tonifying Qi work brings great difficulty, and emergency worker's power, emergency vehicles must ensure in 24 hours moment. SF6Electrical equipment price is high, exchange device difficulty, and the industrial household electricity scope of carrying is wide, has a power failure and is difficult for, SF6Gas pressure intensity reduce after tonifying Qi work be a kind of burst, time uncertain, puzzlement SF6Maintenance of electric device personnel's a difficult problem.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and a kind of SF is provided6Electrical equipment automatic on-line making-up air device, tonifying Qi is stable, safe and reliable, can reduce to greatest extent gas leakage point, effectively avoids SF6Gas leakage causes SF6The phenomenon of electrical equipment gas pressure rapid drawdown, and can realize remote auto control and pressure information collection, realize real-time online tonifying Qi, save a large amount of manpower and materials, greatly reduce SF6Electric equipment maintenance and replacement cost.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of SF6Electrical equipment automatic on-line making-up air device, comprises performance element, control module and power supply; Performance element comprises the electric controlled gas-compensation valve, copper pipe, the first pipe interface, the first pressure sensor, triple valve, magnetic valve, the second pressure sensor, the second pipe interface, pressure-reducing valve, the SF that connect successively6Gas cylinder main valve and SF6Gas cylinder; Being connected to the seal of tube connects; Control module comprises main control module, wireless transport module and relay module; Main control module is electrically connected with the first pressure sensor, the second pressure sensor, wireless transport 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 provides electric power to electric controlled gas-compensation valve, the first pressure sensor, the second pressure sensor, magnetic valve and wireless transport module respectively.
Preferably, electric controlled gas-compensation valve comprises spool, valve gap, 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; Spool is proportion magnetic valve core; Inflation non-return valve interface is fixed at the outlet side of spool, and is tightly connected with the outlet side of spool; Valve gap is located between spool inlet end and inflation loop copper pipe interface, and is all tightly connected with inlet end and the inflation loop copper pipe interface of spool.
Preferably, proportion magnetic valve core comprise yoke, coil, spacing ring, magnetism-isolating loop, housing, inner cap, adjustment screw, spring, armature, every magnetic bearing ring and fairlead; The center of adjustment screw is axially arranged with passage; On coil, parallel connection is provided with warning lamp.
Preferably, inflation non-return valve interface is replaceable flange form interface; Replaceable flange form interface and inflation loop copper pipe interface are Precision Aluminum alloy components.
Preferably, copper pipe is seamless copper tube, and the outside bag of seamless copper tube is provided with sheath.
Preferably, the first pressure sensor and the second pressure sensor are 304 stainless steel gas 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 valves, and the valve stem seal wads of T-shaped 304 stainless steel tee ball valves is polytetrafluoroethylene (PTFE); Two straight-through access portal the first pressure sensor and the magnetic valve at connecting tee valve two ends respectively of T-shaped 304 stainless steel tee ball valves, Article 3 vertical channel, in disconnected position state, is not connected with pipeline.
Preferably, main control module is raspberry group.
Preferably, wireless transport module is GPRS/GSM wireless module.
Preferably, relay module comprises No. 2 relays.
The beneficial effect that adopts technique scheme to produce is: the SF that the utility model provides6Electrical equipment automatic on-line making-up air device, compact conformation, good airproof performance; Adopt electric controlled gas-compensation valve, make tonifying Qi power output standard constant, bearing SF6In the situation of non-return valve thrust, still can keep stable state, eliminate shaking interference, tonifying Qi is stable, safe and reliable, and electric controlled gas-compensation valve is only at equipment side SF6Gas detects and SF6Energising action when the online tonifying Qi of electrical equipment low pressure, under electric controlled gas-compensation valve power failure state, SF6Non-return valve is not subject to External Force Acting, keeps sealing state; This device can reduce gas leakage point to greatest extent, even when the pernicious fault surprisingly rupturing in inflation loop occurs, and SF6Non-return valve still can action message, effectively prevents SF6Electrical equipment SF6Gas leakage causes gas pressure rapid drawdown phenomenon; In this device, comprise the electric control elements such as magnetic valve, pressure sensor and relay, make this device be conducive to realize SF6The automation control of tonifying Qi process, and adopt raspberry to send as main control module, the transmission of wireless signals function of combining wireless module, can realize SF6The remote auto control of electrical equipment tonifying Qi and pressure information collection, attendant can gather SF whenever and wherever possible6The pressure information of electrical equipment, 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 replacement cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment;
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 module 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, inner cap; 1107, adjustment screw; 1108, spring; 1109, armature; 1110, every magnetic bearing ring; 1111, fairlead; 1112, passage; 12, valve gap; 13, inflation non-return valve interface; 14, inflation loop copper pipe interface; 15, warning lamp; 2, copper pipe; 3, the first pipe interface; 4, the first pressure sensor; 5, triple valve; 6, magnetic valve; 7, the second pressure sensor; 8, the second pipe interface; 9, pressure-reducing valve; 10, SF6Gas cylinder main valve; 16, SF6Gas cylinder; 100, control module; 101, inflation non-return valve; 102, SF6Air chamber; 103, power supply; 104, main control module; 105, wireless transport module; 106, relay module.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of SF6Electrical equipment automatic on-line making-up air device, as shown in Figure 1, comprises performance element, control module 100 and power supply 103.
Performance element comprises the electric controlled gas-compensation valve 1, copper pipe 2, the first pipe interface 3, the first pressure sensor 4, triple valve 5, magnetic valve 6, the second pressure sensor 7, the second pipe interface 8, pressure-reducing valve 9, the SF that connect successively6Gas cylinder main valve 10 and SF6Gas cylinder 16, the seal of tube that is connected between above-mentioned each parts connects, and the concrete order of connection is, at SF6On the inflation non-return valve 101 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, electric controlled gas-compensation valve 1 is connected with the first pipe interface 3, the first pressure sensor 4, triple valve 5, magnetic valve 6, the second pressure sensor 7 and the second pipe interface 8 sealed tubes successively by copper pipe 2, the second pipe interface 8 pass through below copper pipe 2 again with pressure-reducing valve 9, SF6Gas cylinder main valve 10 and SF6Gas cylinder 16 is connected. in concrete enforcement, install for convenience of device, the first pipe interface 3, the first pressure sensor 4, triple valve 5, magnetic valve 6, the second pressure sensor 7 and control module 100 are located in a casing, in tonifying Qi process, make as a whole and other equipment connections, the first pipe interface 3 and the second pipe interface 8 are located at outside casing, be used for and outside other equipment connections, two interfaces were tightly connected by copper pipe 2 with being connected all of casing external equipment, the registration table of the first pressure sensor 4 and the second pressure sensor 7 is located at box outer surface, be beneficial to and observe the barometric information recording.
Electric controlled gas-compensation valve 1 comprises spool 11, valve gap 12, replaceable flanged inflation non-return valve interface 13 and inflation loop copper pipe interface 14. In concrete enforcement, inflation non-return valve interface 13 and SF6The inflation non-return valve 101 of air chamber 102 is tightly connected, and inflation loop copper pipe interface 4 is tightly connected with the copper pipe 2 that is connected the first pipe interface 3. Spool 11 is proportion magnetic valve core, and proportion magnetic valve core comprises yoke 1101, coil 1102, spacing ring 1103, magnetism-isolating loop 2204, housing 1105, inner cap 1106, adjustment screw 1107, spring 1108, armature 1109, every magnetic bearing ring 1110 and fairlead 1111. Valve gap 12 is located between spool 11 inlet ends and inflation loop copper pipe interface 14, seal washer, inflation non-return valve interface 13 are installed successively on yoke 1101, seal washer and inflation loop copper pipe interface 14 are installed successively in valve gap 12 outsides, form gas passage, i.e. passage 1112 in adjustment screw 1107 center axial aperture. In order to ensure better sealing, between yoke 1101 and housing 1105, add sealing filler ring, between valve gap 12 inner sides and housing 1105, add sealing filler ring. In order to alleviate the weight of electric controlled gas-compensation valve, replaceable flanged inflation non-return valve interface 13 and inflation loop copper pipe interface 14 all adopt Precision Aluminum alloy to make.
Copper pipe 2 is seamless copper tube, and outside is also wrapped and is provided with sheath, and seamless copper tube easily connects, lightweight, low temperature intensity is high, and can bending, distortion, non-leakage, not combustion-supporting, do not produce toxic gas, corrosion-resistant, is conducive to SF6Tonifying Qi process. The first pressure sensor 4 and the second pressure sensor 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 operating ambient temperature is-30 DEG C～80 DEG C; Triple valve 5 is T-shaped 304 stainless steel tee ball valves, the valve stem seal wads of T-shaped 304 stainless steel tee ball valves is polytetrafluoroethylene (PTFE), the first pressure sensor 4 and the magnetic valve 6 at two straight-through access portal difference connecting tee valve 5 two ends in three passwaies of T-shaped 304 stainless steel tee ball valves, Article 3 vertical channel, in disconnected position state, is not connected with pipeline; Magnetic valve 6 is normally closed type brass explosion-proof solenoid valve; Pressure-reducing valve 9 is SF6Pressure-stabilizing pressure regulation valve.
Control module 100 comprises main control module 104, wireless transport module 105 and relay module 106. Main control module 104 is electrically connected by wire with the first pressure sensor 4, the second pressure sensor 5, wireless transport 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.
Main control module 104 is raspberry group, it is card form computer, the present embodiment adopts raspberry to send the Type B in 2 generation RaspberryPi2, the miniPC based on four core ARMCortex-A7BCM2836, be provided with 1GB internal memory, MicroSD card slot, 40PIN interface, support Win10 system, in raspberry group, VNC(VNC being installed is a outstanding remote control software of increasing income), just can Long-distance Control, make data acquisition with process more convenient.
Wireless transport module 105 is GPRS/GSM wireless module, the present embodiment adopts GSMGPRSShield wireless module, 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, be the integrated single-chip of a patch-type GSM/GPRS, adopt the kernel of ARM926EJ-S, two kinds of serial ports patterns. In concrete enforcement, wireless transport module 105 exchanges information by the mobile phone in radio communication and operating personnel's hand, the pressure information of equipment is sent in mobile phone, and mobile phone also can the long-range control instruction by raspberry group send to relay module 106, realizes Long-distance Control.
Relay module 106 is five pin relays, comprises No. 2 relays, and a road is controlled magnetic valve 6, one tunnels and controlled electric controlled gas-compensation valve 1.
Power supply 103 provides 220V direct current to electric controlled gas-compensation valve 1, the first pressure sensor 4, the second pressure sensor 5, magnetic valve 6 and wireless transport module 105 respectively.
In concrete enforcement, the SF that the present embodiment provides6The tonifying Qi operating procedure of electrical equipment automatic on-line making-up air device is as follows:
The first step, connects SF6Gas cylinder 16, is arranged on SF by pressure-reducing valve 96On gas cylinder main valve 10, pressure-reducing valve 9 and the second pipe interface 8 are linked into an integrated entity with the copper pipe 2 of 0.5 meter long, two connectors of copper pipe 2 both sides utilize screw thread to compress after smearing stop-leak compound, effectively isolate with atmosphere;
Second step, connects electric controlled gas-compensation valve 1, electric controlled gas-compensation valve 1 and the first pipe interface 3 is linked together with the copper pipe 2 of 3 meters long of another roots, and two connectors of copper pipe 2 both sides utilize screw thread to compress also after smearing stop-leak compound, and atmosphere is effectively isolated;
The 3rd step, connects SF6Electrical equipment, is arranged on electric controlled gas-compensation valve 1 on inflation non-return valve 101, for to SF6Air chamber 102 inflations are carried out pipe passage and are prepared;
The 4th step, loop check, checks whether three interfaces of triple valve 5 are all in disconnected position state;
The 5th step, pipeline inflation, manual unlocking SF6Gas cylinder main valve 10, the pressure shown in the gauge outfit of observation pressure-reducing valve 9 while opening, when the pressure shown in pressure-reducing valve 9 gauge outfits is greater than SF6When air chamber 102 nameplate rated pressure 0.2MPa, stop SF6The open operation of gas cylinder main valve 10;
The 6th step, the check and correction of source of the gas lateral pressure, use the Android mobile phone SSH(SecureShell in operating personnel's hand, be called for short SSH, the security protocol being based upon on application layer and transport layer basis) Long-distance Control raspberry group, the SF that instruction GSMGPRSShield expansion board wireless transport module 105 reports and submits the second pressure sensor 7 to measure by note6Gas pressure, and and SF6Pressure ratio shown in pressure-reducing valve 9 gauge outfits, is judged the performance of the second pressure sensor 7;
The 7th step, get rid of gas cylinder lateral line air, use the Android mobile phone SSH Long-distance Control raspberry group in operating personnel's hand, send GPIO(GeneralPurposeInputOutput by raspberry, be called for short GPIO, or bus extender, be universal input/output) control relay module 106, triggers magnetic valve 6 and opens, manual operation triple valve 5, make formation path between put-through channel mouth of triple valve 5 and magnetic valve 6, get rid of the air pocket in pipeline, ensure SF in pipeline6Gas degree of purity, the time of deaeration is no less than 2 minutes, and in pipeline, after cleaning gas, manual-lock triple valve 5, re-uses Android mobile phone SSH Long-distance Control raspberry group, sends GPIO control relay module 106 by raspberry, triggers magnetic valve 6 and closes;
The 8th step, remover apparatus lateral line air, manual operation triple valve 5, put-through channel mouth of triple valve 5 and the inlet end of electric controlled gas-compensation valve 1 are connected, use Android mobile phone SSH Long-distance Control raspberry group, send GPIO control relay module 106 by raspberry, triggering electric controlled gas-compensation valve 1 opens, after confirming that inlet end pipeline air is got rid of totally, manual-lock triple valve 5 immediately, re-use Android mobile phone SSH Long-distance Control raspberry group, send GPIO control relay module 106 by raspberry, trigger electric controlled gas-compensation valve 1 and close;
The 9th step, the check and correction of equipment pressure, is used Android mobile phone SSH Long-distance Control raspberry group, the SF that instruction GSMGPRSShield expansion board wireless transport module 105 reports and submits the first pressure sensor 4 to measure by note6Gas pressure, and and SF6The Pressure gauge of installing on air chamber 102 is compared, and judges the performance of the first pressure sensor 4; Manual operation triple valve 5, makes formation path between triple valve 5, electric controlled gas-compensation valve 1 inlet end and magnetic valve 6, and the third channel mouth in disconnected position state of triple valve 5 is carried out to shutoff, reduces to greatest extent breakthrough and increases operational reliability;
The tenth step, equipment Stress appraisal, according to the long-range equipment Stress appraisal that carries out of equipment leakage situation, assessment cycle is to be advisable in 1/3 of the artificial aerating cycle, in the time that assessment cycle is less than 1 day, the processing that should have a power failure of seepage equipment; When the next day environment temperature range of decrease while exceeding 5 degrees Celsius, increase by 1 time Stress appraisal;
The 11 step, remote equipment Stress appraisal, uses Android mobile phone SSH Long-distance Control raspberry group, utilizes raspberry to send GPIO control relay module 106, triggers electric controlled gas-compensation valve 1 and opens, and after three minutes, closes;
Use Android mobile phone SSH Long-distance Control raspberry group, instruction GSMGPRSShield expansion board wireless transport module 105 is reported and submitted the first pressure sensor 4 numerical value by note, and whether manual evaluation needs tonifying Qi;
The 12 step, long-range tonifying Qi, reads source of the gas lateral pressure, uses Android mobile phone SSH Long-distance Control raspberry group, and instruction GSMGPRSShield expansion board wireless transport module 105 is reported and submitted the second pressure sensor 7 numerical value by note; Open valve aerating, use Android mobile phone SSH Long-distance Control raspberry group, send GPIO control relay module 106 by raspberry, trigger electric controlled gas-compensation valve 1 and open, trigger magnetic valve 6 and open; In aerating process, assess, at interval of 5 minutes, use Android mobile phone SSH Long-distance Control raspberry group, send GPIO control relay module 106 by raspberry, trigger magnetic valve 6 and close, after one minute, use Android mobile phone SSH Long-distance Control raspberry group, instruction GSMGPRSShield expansion board wireless transport module 105 is reported and submitted the numerical value of the first pressure sensor 4 and the second pressure sensor 7, manual evaluation tonifying Qi effect by note; Continue tonifying Qi, repeat above-mentioned two steps assessing in valve aerating, aerating process of opening, until meet the requirements;
The 13 step, device is removed, remover apparatus lateral line SF6Gas leak detection, manual operation triple valve 5, connects put-through channel mouth of triple valve 5 and the inlet end of electric controlled gas-compensation valve 1, SF in confirmation inlet end pipeline6Air scavenge is clean, blocks the third channel mouth in disconnected position state 2 minutes of triple valve 5 with finger, while unclamping, judges without pressure; Slowly remove the electric controlled gas-compensation valve 1 of dead electricity, in demolishing process, to constantly test sealed interface position without air pressure, answer immediate recovery and ascertain the reason when finding that there is when gas exosmoses, until electric controlled gas-compensation valve 1 is pulled down, this work should be carried out during interruption maintenance; Other parts of detaching device successively, this process has no special requirements.
The SF that the present embodiment provides6Electrical equipment automatic on-line making-up air device, compact conformation, good airproof performance; Adopt electric controlled gas-compensation valve, make tonifying Qi power output standard constant, bearing SF6In the situation of non-return valve thrust, still can keep stable state, eliminate shaking interference, tonifying Qi is stable, and safe and reliable, electric controlled gas-compensation valve is only at equipment side SF6Gas detects and SF6Energising action when the online tonifying Qi of electrical equipment low pressure, under electric controlled gas-compensation valve power failure state, SF6Non-return valve is not subject to External Force Acting, keeps sealing state; This device can reduce gas leakage point to greatest extent, even when the pernicious fault surprisingly rupturing in inflation loop occurs, and SF6Non-return valve still can action message, effectively prevents SF6Electrical equipment SF6Gas leakage causes gas pressure rapid drawdown phenomenon; In this device, comprise the electric control elements such as magnetic valve, pressure sensor and relay, make this device be conducive to realize SF6The automation control of tonifying Qi process, and adopt raspberry to send as main control module, the transmission of wireless signals function of combining wireless module, can realize SF6The remote auto control of electrical equipment tonifying Qi and pressure information collection, attendant can gather SF whenever and wherever possible6The pressure information of electrical equipment, 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 replacement cost.
Above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (10)
1. a SF6Electrical equipment automatic on-line making-up air device, is characterized in that: comprise performance element, control module (100) and power supply (103); Described performance element comprises the electric controlled gas-compensation valve (1), copper pipe (2), the first pipe interface (3), the first pressure sensor (4), triple valve (5), magnetic valve (6), the second pressure sensor (7), the second pipe interface (8), pressure-reducing valve (9), the SF that connect successively6Gas cylinder main valve (10) and SF6Gas cylinder (16); The described seal of tube that is connected to connects; Described control module (100) comprises main control module (104), wireless transport module (105) and relay module (106); Described main control module (104) is electrically connected with described the first pressure sensor (4), the second pressure sensor (5), wireless transport 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 to described electric controlled gas-compensation valve (1), the first pressure sensor (4), the second pressure sensor (5), magnetic valve (6) and wireless transport module (105) respectively.
2. SF according to claim 16Electrical equipment automatic on-line making-up air device, is characterized in that described electric controlled gas-compensation valve (1) comprises spool (11), valve gap (12), inflation non-return valve interface (13) and inflation loop copper pipe interface (14); Described inflation non-return valve interface (13) and SF6The inflation non-return valve (101) of air chamber (102) is tightly connected; Described inflation loop copper pipe interface (14) is tightly connected with described copper pipe (2); Described spool (11) is proportion magnetic valve core; Described inflation non-return valve interface (13) is fixed at the outlet side of described spool (11), and is tightly connected with the outlet side of described spool (11); Described valve gap (12) is located between described spool (11) inlet end and described inflation loop copper pipe interface (14), and is all tightly connected with inlet end and the described inflation loop copper pipe interface (14) of described spool (11).
3. SF according to claim 26Electrical equipment automatic on-line making-up air device, it is characterized in that described proportion magnetic valve core comprise yoke (1101), coil (1102), spacing ring (1103), magnetism-isolating loop (1104), housing (1105), inner cap (1106), adjustment screw (1107), spring (1108), armature (1109), every magnetic bearing ring (1110) and fairlead (1111); The center of described adjustment screw (1107) is axially arranged with passage (1112); The upper parallel connection of described coil (1102) is provided with warning lamp (15).
4. according to the SF described in claim 2 or 36Electrical equipment automatic on-line making-up air device, is characterized in that described inflation non-return valve interface (13) is replaceable flange form interface; Described replaceable flange form interface and inflation loop copper pipe interface (14) are Precision Aluminum alloy components.
5. SF according to claim 16Electrical equipment automatic on-line making-up air device, is characterized in that described copper pipe (2) is seamless copper tube, and the outside bag of described seamless copper tube is provided with sheath.
6. SF according to claim 16Electrical equipment automatic on-line making-up air device, is characterized in that described the first pressure sensor (4) and described the second pressure sensor (7) are 304 stainless steel gas pressure transmitters; Described magnetic valve (6) is normally closed type brass explosion-proof solenoid valve; Described pressure-reducing valve (9) is SF6Pressure-stabilizing pressure regulation valve.
7. SF according to claim 16Electrical equipment automatic on-line making-up air device, is characterized in that described triple valve (5) is T-shaped 304 stainless steel tee ball valves, and the valve stem seal wads of described T-shaped 304 stainless steel tee ball valves is polytetrafluoroethylene (PTFE); A passage of described triple valve (5) is in disconnected position state.
8. SF according to claim 16Electrical equipment automatic on-line making-up air device, is characterized in that described main control module (104) is for raspberry group.
9. SF according to claim 16Electrical equipment automatic on-line making-up air device, is characterized in that described wireless transport module (105) is GPRS/GSM wireless module.
10. SF according to claim 16Electrical equipment automatic on-line making-up air device, is characterized in that described relay module (106) comprises No. 2 relays.
Priority Applications (1)
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| CN201521118789.7U CN205261214U (en) | 2015-12-30 | 2015-12-30 | SF6 electrical equipment automatic on -line air supplement unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669619A (en) * | 2021-08-20 | 2021-11-19 | 国网浙江省电力有限公司检修分公司 | SF6 air supply device and SF6 air supply method |
| CN114321704A (en) * | 2021-12-27 | 2022-04-12 | 国网山东省电力公司潍坊供电公司 | Intelligent SF6Gas leakage detection aerating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669619A (en) * | 2021-08-20 | 2021-11-19 | 国网浙江省电力有限公司检修分公司 | SF6 air supply device and SF6 air supply method |
| CN113669619B (en) * | 2021-08-20 | 2022-12-27 | 国网浙江省电力有限公司检修分公司 | SF6 gas supplementing device and SF6 gas supplementing method |
| CN114321704A (en) * | 2021-12-27 | 2022-04-12 | 国网山东省电力公司潍坊供电公司 | Intelligent SF6Gas leakage detection aerating device |
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