CN205781969U - Portable sulfur hexafluoride and carbon tetrafluoride mixed gas quickly reclaim making-up air device - Google Patents
Portable sulfur hexafluoride and carbon tetrafluoride mixed gas quickly reclaim making-up air device Download PDFInfo
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- CN205781969U CN205781969U CN201620463288.0U CN201620463288U CN205781969U CN 205781969 U CN205781969 U CN 205781969U CN 201620463288 U CN201620463288 U CN 201620463288U CN 205781969 U CN205781969 U CN 205781969U
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- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 84
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 title claims abstract description 52
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 50
- 238000009826 distribution Methods 0.000 claims abstract description 47
- 238000000926 separation method Methods 0.000 claims abstract description 43
- 238000005057 refrigeration Methods 0.000 claims abstract description 30
- 238000011084 recovery Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000005086 pumping Methods 0.000 claims description 24
- 239000002808 molecular sieve Substances 0.000 claims description 11
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 36
- 238000000034 method Methods 0.000 abstract description 17
- 230000007812 deficiency Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 33
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000000428 dust Substances 0.000 description 5
- WRQGPGZATPOHHX-UHFFFAOYSA-N ethyl 2-oxohexanoate Chemical compound CCCCC(=O)C(=O)OCC WRQGPGZATPOHHX-UHFFFAOYSA-N 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000012491 analyte Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
Portable sulfur hexafluoride and carbon tetrafluoride mixed gas quickly reclaim making-up air device, including mixed gas recovery system, separation system of mixed gas, refrigeration unit, sulfur hexafluoride special pressure charging system, carbon tetrafluoride special pressure charging system, mixed gas distribution gas charging system and pumped vacuum systems, the gas outlet of mixed gas recovery system is connected with the air inlet of separation system of mixed gas, the air inlet of the gas outlet of separation system of mixed gas pressure special with carbon tetrafluoride charging system is connected, the inlet of the liquid outlet of separation system of mixed gas pressure special with sulfur hexafluoride charging system is connected.This utility model achieves the on-the-spot quickly recovery of mix insulation gas, and is stored and the function of on-the-spot high-precision dynamic air-distributing QI invigorating by the gas after mixed gas simple separation, separation；Carry out QI invigorating by mixed gas distribution gas charging system, be possible not only to the gas of the required ratio of configuration of quickly, efficiently and accurately, also compensate for generally by dividing potential drop air-supplementing method deficiency in accuracy and efficiency.
Description
Technical field
This utility model belongs to mix insulation gas high pressure switchgear service technique field, low temp area, is specifically related to a kind of portable sulfur hexafluoride and carbon tetrafluoride mixed gas quickly reclaims making-up air device.
Background technology
Sulfur hexafluoride (SF6) gas is the sufficiently stable gas of a kind of chemical property, as a kind of excellent insulation and arc-extinguishing medium, it is widely used in various electrical equipment.For ensureing SF6Electrical equipment properly functioning, the SF sealed in equipment6Gas needs to keep certain pressure, and SF6The operation characteristic of gas is affected obvious by variation of ambient temperature.In northern China and some highlandss, can often there is the extreme low temperature of less than-40 DEG C, SF under cryogenic in winter6SF in electrical equipment6Gas density will be gradually reduced, part SF6Gas is become liquid from gaseous state so that SF6Gas pressure in electrical equipment reduces, and has a strong impact on equipment properly functioning.
For solving SF6SF in electrical equipment6The problem of gas liquefaction at low ambient temperatures, at northern China cold district many employings sulfur hexafluoride and carbon tetrafluoride (SF6/CF4) the pure SF of mix insulation gas instead6Gas, SF6/CF4Mix insulation gas can not liquefy, and current mix insulation gas uses in the electrical equipment of China low temp area in a large number.
In equipment During Process of Long-term Operation, owing to equipment operating environment, device fabrication quality and original paper damage or the reason such as aging, mix insulation outlet openings switch needs interruption maintenance, and when overhauling, reclaiming of mixed gas stores the difficult problem always perplexing maintainer's long period.SF is passed through in being still that China's mix insulation gas recovery aspect uses at present6Retracting device reclaims and stores mixed gas (SF6/ CF4), due to SF in mix insulation gas6And CF4Character, it is difficult to liquefaction, it is therefore desirable to more steel cylinder or large-volume receptacle store gas.So the memory technology that quickly reclaims of mix insulation gas becomes current electrical equipment gas and reclaims field and need the problem of solution badly under low temperature environment.
Due to the reasons such as device fabrication quality, mounting process, aging, the blowing pressure of potted component, SF6SF in equipment during electric equipment operation6The leakage of gas is difficult to avoid that, in this results in equipment, gas pressure reduces, and affects equipment properly functioning, therefore works as SF6After electric equipment operation a period of time, need to carry out QI invigorating.
Along with the increase of China's mix insulation outlet openings equipment usage amount, under cold environmental conditions, the QI invigorating technology of mix insulation outlet openings equipment becomes more and more important.At present, the SF that China is common6Mostly the QI invigorating of mix insulation gas is to use the independent QI invigorating of dividing potential drop method, has both added the number of times connecting electrical equipment QI invigorating, it is also difficult to is accurately controlled the ratio of two kinds of gas mixing by partial pressure, brings difficulty to the QI invigorating of mix insulation outlet openings equipment.Therefore, under low temperature environment, the accurately mixing QI invigorating technology of mix insulation gas becomes current electrical equipment QI invigorating field and needs the problem of solution badly.
Utility model content
This utility model is in order to solve weak point of the prior art, a kind of portable sulfur hexafluoride and carbon tetrafluoride mixed gas is provided quickly to reclaim making-up air device, this device can not only reclaim mixed gas, and can separate mixed gas, the SF after concentration being improved6And CF4Respectively by special pressure charging system, it is recycled to steel cylinder and stores, improve mix insulation gas gas-storing capacity in steel cylinder；And this device can also be by the air compensating system configured, the gas of the required ratio of configuration is filled with in mix insulation electrical equipment.
nullFor solving above-mentioned technical problem，This utility model adopts the following technical scheme that portable sulfur hexafluoride and carbon tetrafluoride mixed gas quickly reclaim making-up air device，Including mixed gas recovery system、Separation system of mixed gas、Refrigeration unit 16、Sulfur hexafluoride special pressure charging system、Carbon tetrafluoride special pressure charging system、Mixed gas distribution gas charging system and pumped vacuum systems，The gas outlet of mixed gas recovery system is connected with the air inlet of separation system of mixed gas，The air inlet of the gas outlet of separation system of mixed gas pressure special with carbon tetrafluoride charging system is connected，The inlet of the liquid outlet of separation system of mixed gas pressure special with sulfur hexafluoride charging system is connected，The bleeding point of pumped vacuum systems respectively with mixed gas recovery system、Sulfur hexafluoride special pressure charging system、Carbon tetrafluoride special pressure charging system and mixed gas distribution gas charging system connect，The refrigeration delivery outlet of refrigeration unit 16 respectively with mixed gas recovery system、Separation system of mixed gas and carbon tetrafluoride special pressure charging system connect.
Mixed gas recovery system includes the first high-voltage tube 1, the air inlet of the first high-voltage tube 1 is provided with the self-styled snap joint of mixed admission 2, the first high-voltage tube 1 is sequentially provided with the first electromagnetic valve V1, first manual normally open valve C1, first molecular sieve the 3, first molecular sieve 4, oilless (oil free) compressor the 5, first check valve the 6, first cool-heat-exchanger 7 and mixing along mixed gas airflow direction and gives vent to anger self-styled snap joint 8；Connect on the first high-voltage tube 1 between the inlet and outlet of the first electromagnetic valve V1 and have supercharging high-pressure pipe 9, supercharging high-pressure pipe 9 is sequentially provided with the second electromagnetic valve V2, vacuum compressor 10 and the second check valve 11 along mixed gas airflow direction；Refrigeration delivery outlet and first cool-heat-exchanger 7 of refrigeration unit 16 connect.
Separation system of mixed gas includes hybrid separation high-voltage tube 12 and gas separate pot 13, the air inlet of hybrid separation high-voltage tube 12 is connected to the first cool-heat-exchanger 7 and mixes on the first high-voltage tube 1 giving vent to anger between self-styled snap joint 8, the gas outlet of hybrid separation high-voltage tube 12 is connected with the air inlet of gas separate pot 13, hybrid separation high-voltage tube 12 is provided with the 3rd electromagnetic valve V3, being provided with liquidometer 14 bottom gas separate pot 13, gas separate pot 13 top is provided with sulfur hexafluoride purity instrument 15；The refrigeration delivery outlet of refrigeration unit 16 is connected with gas separate pot 13.
Carbon tetrafluoride special pressure charging system includes the second high-voltage tube 20, the air inlet of the second high-voltage tube 20 is connected with gas separate pot 13 top, the gas outlet of the second high-voltage tube 20 is provided with carbon tetrafluoride and gives vent to anger self-styled snap joint 21, and the second high-voltage tube 20 is sequentially provided with the 4th electromagnetic valve V4, high pressure compressor 22 and the second cool-heat-exchanger 23 along air inlet to direction, gas outlet；Refrigeration delivery outlet and second cool-heat-exchanger 23 of refrigeration unit 16 connect.
Sulfur hexafluoride special pressure charging system includes the 3rd high-voltage tube 17, the inlet of the 3rd high-voltage tube 17 is connected bottom gas separate pot 13, the gas outlet of the 3rd high-voltage tube 17 is provided with sulfur hexafluoride and gives vent to anger self-styled snap joint 18, and the 3rd high-voltage tube 17 is sequentially provided with the 5th electromagnetic valve V5, liquid filling machine 19 and the 6th electromagnetic valve V6 along inlet to direction, gas outlet.
Mixed gas distribution gas charging system includes distribution inflation high-voltage tube 24, the self-styled snap joint of carbon tetrafluoride distribution 25 and the self-styled snap joint of sulfur hexafluoride distribution 26, the inflation inlet of distribution inflation high-voltage tube 24 is provided with the self-styled snap joint 27 of inflation, and distribution inflation high-voltage tube 24 is sequentially provided with distributing instrument 28, buffer tank 29, electromagnetic proportion regulating D1, the 7th electromagnetic valve V7, low pressure compressor 30 and the 3rd check valve 31 by air inlet to gas outlet；The self-styled snap joint of carbon tetrafluoride distribution 25 and the self-styled snap joint of sulfur hexafluoride distribution 26 air inlet with distributing instrument 28 respectively is connected.
Pumped vacuum systems includes that evacuation supervisor 33, the two ends of evacuation supervisor 33 are connected with vacuum pump 32 and the extraneous self-styled snap joint of evacuation 34 respectively, and evacuation supervisor 33 is provided with the 8th electromagnetic valve V8；Being connected by the first vacuum-pumping tube 35 between evacuation supervisor 33 and supercharging high-pressure pipe 9, the first vacuum-pumping tube 35 is provided with the 9th electromagnetic valve V9；Being connected by the second vacuum-pumping tube 36 between evacuation supervisor 33 with distribution inflation high-voltage tube 24, the second vacuum-pumping tube 36 is provided with the tenth electromagnetic valve V10；Being connected by the 3rd vacuum-pumping tube 37 between evacuation supervisor 33 and the 3rd high-voltage tube 17, the 3rd vacuum-pumping tube 37 is provided with the 11st electromagnetic valve V11；Being connected by the 4th vacuum-pumping tube 38 between second high-voltage tube 20 and the 3rd high-voltage tube 17, the 4th vacuum-pumping tube 38 is provided with the 12nd electromagnetic valve V12.
Use technique scheme, during mix insulation maintenance of electrical equipment, mix insulation gas sulfur hexafluoride and carbon tetrafluoride (SF6/CF4) reclaimed by special mixed gas recovery system, the first molecular sieve and the first molecular sieve drying filter the impurity such as the moisture in mix insulation gas and catabolite.Vacuum compressor reclaims for negative pressure, reduces mix insulation gas residue；The air inlet of vacuum compressor is provided with dust floccule filter, and dust floccule filter uses precision Filter element, Chalk-dust filtering and solid granulates, filtering accuracy≤1 μm, can prevent dust and solid granulates from entering vacuum compressor, extension device service life；Molecular sieve adsorption principle is used to process the impurity such as the catabolite in mixed gas, moisture, mineral oil；Then by oilless (oil free) compressor, the gas after dry filter is recycled in separation system of mixed gas.
SF after recovery6/CF4Mixed gas does not only have SF6Gas and mixed gas catabolite, the most substantial amounts of CF4, the impurity such as analyte, moisture and dust in mix insulation gas is filtered to remove by mixed gas recovery system, and remaining gas is SF6And CF4Mixed gas (SF6With CF4The mass mixings such as gas), due to CF4It is difficult to (the CF that liquefies4Critical pressure be 3739kPa, critical temperature is-45.6 DEG C；SF6Critical temperature be 45.55 DEG C, critical temperature is 3759kPa), therefore in separation system of mixed gas can by cryogenic rectification method by SF6Liquefaction, with CF4Separate.
Gas separate pot is provided with liquidometer, can the most clearly measure SF6Gas liquid level in gas separate pot, judges whether to start sulfur hexafluoride special pressure charging system, by liquid SF according to liquid level6Fill is in storage tank.During whole gas filling, gas separate pot continuous firing.When stopping SF6After fill, by separation column SF6SF measured by purity instrument6Purity, according to SF6Purity judges whether to start CF4Pressure charging system, CF4Pressure fills employing special high-pressure compressor, by CF by the way of high pressure low temperature4Pressure is charged in steel cylinder.
By the process of above-mentioned steps, it is ensured that the SF after recovery6Concentration more than 98%, CF4Gas, more than 90%, is separated and is charged to steel cylinder by concentration, not only can reduce on-the-spot mixed gas and reclaim the wilderness demand to container, and the gas after separating also allows for the reclaiming clean regeneration in later stage, reaches recycling standard.
After overhaul of the equipments, when need to inflate, the air inlet inflating self-styled snap joint electric with mix insulation is connected, first pass through pumped vacuum systems and mixed gas distribution gas charging system is carried out evacuation, then gas cylinder is connected at the self-styled snap joint of carbon tetrafluoride distribution and the self-styled snap joint of sulfur hexafluoride distribution, carry out configuring the mix insulation gas of required ratio by dynamic gas distribution instrument, then by electromagnetic proportion regulating adjusting gas flow, finally by low pressure compressor gas is charged to mix insulation electrically in, low pressure compressor pressure can be configured according to customer requirement, the work of mix insulation electrical equipment QI invigorating can be completed safely and efficiently.
In sum, this utility model achieves the on-the-spot of mix insulation gas and quickly reclaims, the simple separation of mixed gas, the storage of gas after separation, and the function of on-the-spot high-precision dynamic air-distributing QI invigorating；This utility model reclaims the SF carried out before storing6With CF4Isolation technics, and CF4Special high-pressure compressor, can reduce gas storage volumes and (compare and do not separate CF4, utilize normally used SF6Retracting device reclaims, and it stores necessary volume will reduce 75%)；Carry out QI invigorating by mixed gas distribution gas charging system, be possible not only to the gas of the required ratio of configuration of quickly, efficiently and accurately, also compensate for generally by dividing potential drop air-supplementing method deficiency in accuracy and efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
nullAs shown in Figure 1，Portable sulfur hexafluoride of the present utility model and carbon tetrafluoride mixed gas quickly reclaim making-up air device，Including mixed gas recovery system、Separation system of mixed gas、Refrigeration unit 16、Sulfur hexafluoride special pressure charging system、Carbon tetrafluoride special pressure charging system、Mixed gas distribution gas charging system and pumped vacuum systems，The gas outlet of mixed gas recovery system is connected with the air inlet of separation system of mixed gas，The air inlet of the gas outlet of separation system of mixed gas pressure special with carbon tetrafluoride charging system is connected，The inlet of the liquid outlet of separation system of mixed gas pressure special with sulfur hexafluoride charging system is connected，The bleeding point of pumped vacuum systems respectively with mixed gas recovery system、Sulfur hexafluoride special pressure charging system、Carbon tetrafluoride special pressure charging system and mixed gas distribution gas charging system connect，The refrigeration delivery outlet of refrigeration unit 16 respectively with mixed gas recovery system、Separation system of mixed gas and carbon tetrafluoride special pressure charging system connect.
Mixed gas recovery system includes the first high-voltage tube 1, the air inlet of the first high-voltage tube 1 is provided with the self-styled snap joint of mixed admission 2, the first high-voltage tube 1 is sequentially provided with the first electromagnetic valve V1, first manual normally open valve C1, first molecular sieve the 3, first molecular sieve 4, oilless (oil free) compressor the 5, first check valve the 6, first cool-heat-exchanger 7 and mixing along mixed gas airflow direction and gives vent to anger self-styled snap joint 8；Connect on the first high-voltage tube 1 between the inlet and outlet of the first electromagnetic valve V1 and have supercharging high-pressure pipe 9, supercharging high-pressure pipe 9 is sequentially provided with the second electromagnetic valve V2, vacuum compressor 10 and the second check valve 11 along mixed gas airflow direction；Refrigeration delivery outlet and first cool-heat-exchanger 7 of refrigeration unit 16 connect.
Separation system of mixed gas includes hybrid separation high-voltage tube 12 and gas separate pot 13, the air inlet of hybrid separation high-voltage tube 12 is connected to the first cool-heat-exchanger 7 and mixes on the first high-voltage tube 1 giving vent to anger between self-styled snap joint 8, the gas outlet of hybrid separation high-voltage tube 12 is connected with the air inlet of gas separate pot 13, hybrid separation high-voltage tube 12 is provided with the 3rd electromagnetic valve V3, being provided with liquidometer 14 bottom gas separate pot 13, gas separate pot 13 top is provided with sulfur hexafluoride purity instrument 15；The refrigeration delivery outlet of refrigeration unit 16 is connected with gas separate pot 13.
Carbon tetrafluoride special pressure charging system includes the second high-voltage tube 20, the air inlet of the second high-voltage tube 20 is connected with gas separate pot 13 top, the gas outlet of the second high-voltage tube 20 is provided with carbon tetrafluoride and gives vent to anger self-styled snap joint 21, and the second high-voltage tube 20 is sequentially provided with the 4th electromagnetic valve V4, high pressure compressor 22 and the second cool-heat-exchanger 23 along air inlet to direction, gas outlet；Refrigeration delivery outlet and second cool-heat-exchanger 23 of refrigeration unit 16 connect.
Sulfur hexafluoride special pressure charging system includes the 3rd high-voltage tube 17, the inlet of the 3rd high-voltage tube 17 is connected bottom gas separate pot 13, the gas outlet of the 3rd high-voltage tube 17 is provided with sulfur hexafluoride and gives vent to anger self-styled snap joint 18, and the 3rd high-voltage tube 17 is sequentially provided with the 5th electromagnetic valve V5, liquid filling machine 19 and the 6th electromagnetic valve V6 along inlet to direction, gas outlet.
Mixed gas distribution gas charging system includes distribution inflation high-voltage tube 24, the self-styled snap joint of carbon tetrafluoride distribution 25 and the self-styled snap joint of sulfur hexafluoride distribution 26, the inflation inlet of distribution inflation high-voltage tube 24 is provided with the self-styled snap joint 27 of inflation, and distribution inflation high-voltage tube 24 is sequentially provided with distributing instrument 28, buffer tank 29, electromagnetic proportion regulating D1, the 7th electromagnetic valve V7, low pressure compressor 30 and the 3rd check valve 31 by air inlet to gas outlet；The self-styled snap joint of carbon tetrafluoride distribution 25 and the self-styled snap joint of sulfur hexafluoride distribution 26 air inlet with distributing instrument 28 respectively is connected.
Pumped vacuum systems includes that evacuation supervisor 33, the two ends of evacuation supervisor 33 are connected with vacuum pump 32 and the extraneous self-styled snap joint of evacuation 34 respectively, and evacuation supervisor 33 is provided with the 8th electromagnetic valve V8；Being connected by the first vacuum-pumping tube 35 between evacuation supervisor 33 and supercharging high-pressure pipe 9, the first vacuum-pumping tube 35 is provided with the 9th electromagnetic valve V9；Being connected by the second vacuum-pumping tube 36 between evacuation supervisor 33 with distribution inflation high-voltage tube 24, the second vacuum-pumping tube 36 is provided with the tenth electromagnetic valve V10；Being connected by the 3rd vacuum-pumping tube 37 between evacuation supervisor 33 and the 3rd high-voltage tube 17, the 3rd vacuum-pumping tube 37 is provided with the 11st electromagnetic valve V11；Being connected by the 4th vacuum-pumping tube 38 between second high-voltage tube 20 and the 3rd high-voltage tube 17, the 4th vacuum-pumping tube 38 is provided with the 12nd electromagnetic valve V12.
Of the present utility model specific operation process is discussed in detail below as each function.
(1) mix insulation gas recovery process: self-styled for mixed admission snap joint 2 is connected with mix insulation electrical equipment, close the second electromagnetic valve V2, open the first electromagnetic valve V1 and the 3rd electromagnetic valve V3, oilless (oil free) compressor 5 is opened, and the mixed gas first molecular sieve the 3, second molecular sieve 4 on the first high-voltage tube 1, oilless (oil free) compressor the 5, first cool-heat-exchanger 7 enter separation system of mixed gas；When in mix insulation electrical equipment air chamber, gas pressure is less than 0.1MPa, the second electromagnetic valve V2 opens, and the first electromagnetic valve V1 closes, and under the effect of vacuum compressor 10, the intensified high-voltage tube of mixed gas 9 enters gas separate pot 13；After gas enters gas separate pot 13, by mechanical refrigeration degree of depth rectification, by SF6Liquefaction and SF6Separate.
If directly reclaiming mix insulation gas, the 3rd electromagnetic valve V3 can be closed, mixing self-styled snap joint 8 of giving vent to anger and being connected with gaseous mixture steel cylinder, so that it may mix insulation gas is directly reclaimed.
(2) mix insulation gas separation process: after gas enters gas separate pot 13, uses mechanical refrigeration degree of depth principles of rectification, gas separate pot 13 temperature is down to-15 DEG C～-10 DEG C, and pressure is higher than 1.0MPa, due to SF6Gas and CF4Gas liquid point is different, now SF6Gas liquefaction, CF4Remain as gaseous state, SF6By being enriched in bottom gas separate pot 13 after filler, SF can be observed by liquidometer 146Liquid level.
(3) SF6Pressure charges dress flow process: mix insulation gas after gas separate pot 13 separates, SF6Major part is enriched in bottom gas separate pot 13 in liquid form, CF4It is enriched in gas separate pot 13 top in the form of a vapor.SF6Being gone out by bottom gas separate pot 13 in liquid form, sulfur hexafluoride is given vent to anger self-styled snap joint 18 and SF6Steel cylinder air inlet connects, and opens liquid filling machine 19, opens the 5th electromagnetic valve V5, SF6Store through the 3rd high-voltage tube 17 fill the most in liquid form.
(4) CF4Pressure charges dress flow process: carbon tetrafluoride is given vent to anger self-styled snap joint 21 and CF4The air inlet of steel cylinder connects, CF4Being enriched in gas separate pot 13 top, the sulfur hexafluoride purity instrument 15 installed by gas separate pot 13 top can detect CF4SF in gas6Content, SF6When concentration is less than 10%, open high pressure compressor 22 and the 4th electromagnetic valve V4, CF4Gas is extracted out by the second high-voltage tube 20, and at high pressure compressor 22(three stage compression, pressure is up to 10MPa) effect under and the second cool-heat-exchanger 23(reduce CF4Gas temperature) after be stored into steel cylinder or store container, by CF4Gas high pressure compression stores, and gas storage capacity is up to 25～30kg(and CF4New gas is consistent).
(5) mixed gas inflation flow process: when mix insulation electrical equipment needs inflation due to situations such as maintenance or leakage, firstly the need of evacuation, open vacuum pump 32, open the 8th electromagnetic valve V8, the 7th electromagnetic valve V7 and the tenth electromagnetic valve V10, to evacuation such as mixed gas distribution gas charging systems, it is to avoid residual gas affects distribution accuracy.If air chamber is vacuum room, then directly by SF6Source of the gas connects the self-styled snap joint of sulfur hexafluoride distribution 26, CF4Source of the gas connects the self-styled snap joint of carbon tetrafluoride distribution 25, setting needs gas ratio, then by distributing instrument 28 distribution, the gas of preparation stores at buffer tank 29, regulates flow by electromagnetic proportion regulating D1, again through low pressure compressor 30(maximum pressure be 0.65～0.7MPa, pressure switch alarming value can be set, it is to avoid pressure is excessive according to desirable pressure, impulse interference wave switch air chamber), enter mix insulation outlet openings equipment air chamber.If air chamber having gas, it is only necessary to supplementary pressure, then need to detect ratio of gas mixture in air chamber, then calculated the SF of required preparation by distribution equipment6And CF4After concentration, and setup parameter, direct distribution, after QI invigorating flow process consistent with above-mentioned vacuum room QI invigorating flow process.
(6) to mixed gas recovery system, sulfur hexafluoride special pressure charging system and carbon tetrafluoride special pressure charging system evacuation flow process: (1), closedown the 9th electromagnetic valve V9, the tenth electromagnetic valve V10 and the 12nd electromagnetic valve V12, open the 8th electromagnetic valve V8 and the 11st electromagnetic valve V11, open vacuum pump 32, can pressure charging system evacuation special to sulfur hexafluoride；(2), close the tenth electromagnetic valve V10, the 11st electromagnetic valve V11 and the 12nd electromagnetic valve V12, open the 8th electromagnetic valve V8 and the 9th electromagnetic valve V9, open vacuum pump 32, can be to mixed gas recovery system evacuation；(2), close the 9th electromagnetic valve V9, the 6th electromagnetic valve V6, the tenth electromagnetic valve V10, open the 8th electromagnetic valve V8, the 11st electromagnetic valve V11 and the 12nd electromagnetic valve V12, open vacuum pump 32, can pressure charging system evacuation special to carbon tetrafluoride.
Above example is only in order to illustrative not limiting the technical solution of the utility model, although this utility model being described in detail with reference to above-described embodiment, it will be understood by those within the art that: still this utility model can be modified or equivalent, without deviating from any modification or partial replacement of spirit and scope of the present utility model, it all should be contained in the middle of right of the present utility model.
Claims (7)
- null1. portable sulfur hexafluoride and carbon tetrafluoride mixed gas quickly reclaim making-up air device，It is characterized in that: include mixed gas recovery system、Separation system of mixed gas、Refrigeration unit (16)、Sulfur hexafluoride special pressure charging system、Carbon tetrafluoride special pressure charging system、Mixed gas distribution gas charging system and pumped vacuum systems，The gas outlet of mixed gas recovery system is connected with the air inlet of separation system of mixed gas，The air inlet of the gas outlet of separation system of mixed gas pressure special with carbon tetrafluoride charging system is connected，The inlet of the liquid outlet of separation system of mixed gas pressure special with sulfur hexafluoride charging system is connected，The bleeding point of pumped vacuum systems respectively with mixed gas recovery system、Sulfur hexafluoride special pressure charging system、Carbon tetrafluoride special pressure charging system and mixed gas distribution gas charging system connect，The refrigeration delivery outlet of refrigeration unit (16) respectively with mixed gas recovery system、Separation system of mixed gas and carbon tetrafluoride special pressure charging system connect.
- Portable sulfur hexafluoride the most according to claim 1 and carbon tetrafluoride mixed gas quickly reclaim making-up air device, it is characterized in that: mixed gas recovery system includes the first high-voltage tube (1), the air inlet of the first high-voltage tube (1) is provided with the self-styled snap joint of mixed admission (2), it is sequentially provided with the first electromagnetic valve (V1) along mixed gas airflow direction on first high-voltage tube (1), first manual normally open valve (C1), first molecular sieve (3), first molecular sieve (4), oilless (oil free) compressor (5), first check valve (6), first cool-heat-exchanger (7) and mixing are given vent to anger self-styled snap joint (8)；The upper connection of the first high-voltage tube (1) between the inlet and outlet of the first electromagnetic valve (V1) has supercharging high-pressure pipe (9), and supercharging high-pressure pipe (9) is sequentially provided with the second electromagnetic valve (V2), vacuum compressor (10) and the second check valve (11) along mixed gas airflow direction；The refrigeration delivery outlet of refrigeration unit (16) and the first cool-heat-exchanger (7) connect.
- Portable sulfur hexafluoride the most according to claim 2 and carbon tetrafluoride mixed gas quickly reclaim making-up air device, it is characterized in that: separation system of mixed gas includes hybrid separation high-voltage tube (12) and gas separate pot (13), on the first high-voltage tube (1) that the air inlet of hybrid separation high-voltage tube (12) is connected to the first cool-heat-exchanger (7) and mixing is given vent to anger between self-styled snap joint (8), the gas outlet of hybrid separation high-voltage tube (12) is connected with the air inlet of gas separate pot (13), hybrid separation high-voltage tube (12) is provided with the 3rd electromagnetic valve (V3), gas separate pot (13) bottom is provided with liquidometer (14), gas separate pot (13) top is provided with sulfur hexafluoride purity instrument (15)；The refrigeration delivery outlet of refrigeration unit (16) is connected with gas separate pot (13).
- Portable sulfur hexafluoride the most according to claim 3 and carbon tetrafluoride mixed gas quickly reclaim making-up air device, it is characterized in that: carbon tetrafluoride special pressure charging system includes the second high-voltage tube (20), the air inlet of the second high-voltage tube (20) is connected with gas separate pot (13) top, the gas outlet of the second high-voltage tube (20) is provided with carbon tetrafluoride and gives vent to anger self-styled snap joint (21), and the second high-voltage tube (20) is sequentially provided with the 4th electromagnetic valve (V4), high pressure compressor (22) and the second cool-heat-exchanger (23) along air inlet to direction, gas outlet；The refrigeration delivery outlet of refrigeration unit (16) and the second cool-heat-exchanger (23) connect.
- Portable sulfur hexafluoride the most according to claim 4 and carbon tetrafluoride mixed gas quickly reclaim making-up air device, it is characterized in that: sulfur hexafluoride special pressure charging system includes the 3rd high-voltage tube (17), the inlet of the 3rd high-voltage tube (17) is connected with gas separate pot (13) bottom, the gas outlet of the 3rd high-voltage tube (17) is provided with sulfur hexafluoride and gives vent to anger self-styled snap joint (18), and the 3rd high-voltage tube (17) is sequentially provided with the 5th electromagnetic valve (V5), liquid filling machine (19) and the 6th electromagnetic valve (V6) along inlet to direction, gas outlet.
- Portable sulfur hexafluoride the most according to claim 5 and carbon tetrafluoride mixed gas quickly reclaim making-up air device, it is characterized in that: mixed gas distribution gas charging system includes distribution inflation high-voltage tube (24), the self-styled snap joint of carbon tetrafluoride distribution (25) and the self-styled snap joint of sulfur hexafluoride distribution (26), the inflation inlet of distribution inflation high-voltage tube (24) is provided with the self-styled snap joint of inflation (27), it is sequentially provided with distributing instrument (28) by air inlet to gas outlet in distribution inflation high-voltage tube (24), buffer tank (29), electromagnetic proportion regulating (D1), 7th electromagnetic valve (V7), low pressure compressor (30) and the 3rd check valve (31)；The self-styled snap joint of carbon tetrafluoride distribution (25) and the self-styled snap joint of sulfur hexafluoride distribution (26) air inlet with distributing instrument (28) respectively is connected.
- Portable sulfur hexafluoride the most according to claim 5 and carbon tetrafluoride mixed gas quickly reclaim making-up air device, it is characterized in that: pumped vacuum systems includes that evacuation is responsible for (33), the two ends of evacuation supervisor (33) are connected with vacuum pump (32) and the extraneous self-styled snap joint of evacuation (34) respectively, and evacuation supervisor (33) is provided with the 8th electromagnetic valve (V8)；Being connected by the first vacuum-pumping tube (35) between evacuation supervisor (33) and supercharging high-pressure pipe (9), the first vacuum-pumping tube (35) is provided with the 9th electromagnetic valve (V9)；Being connected by the second vacuum-pumping tube (36) between evacuation supervisor (33) with distribution inflation high-voltage tube (24), the second vacuum-pumping tube (36) is provided with the tenth electromagnetic valve (V10)；Being connected by the 3rd vacuum-pumping tube (37) between evacuation supervisor (33) and the 3rd high-voltage tube (17), the 3rd vacuum-pumping tube (37) is provided with the 11st electromagnetic valve (V11)；Being connected by the 4th vacuum-pumping tube (38) between second high-voltage tube (20) with the 3rd high-voltage tube (17), the 4th vacuum-pumping tube (38) is provided with the 12nd electromagnetic valve (V12).
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| CN201620463288.0U CN205781969U (en) | 2016-05-20 | 2016-05-20 | Portable sulfur hexafluoride and carbon tetrafluoride mixed gas quickly reclaim making-up air device |
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| CN201620463288.0U CN205781969U (en) | 2016-05-20 | 2016-05-20 | Portable sulfur hexafluoride and carbon tetrafluoride mixed gas quickly reclaim making-up air device |
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| CN205781969U true CN205781969U (en) | 2016-12-07 |
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| CN105864632A (en) * | 2016-05-20 | 2016-08-17 | 国家电网公司 | Mobile device for rapid recovery and supplementation of sulfur hexafluoride-carbon tetrafluoride gas mixture |
| CN106823871A (en) * | 2017-02-10 | 2017-06-13 | 平高集团有限公司 | A kind of gas separating and recovery system and mixed gas experiment gas circuit |
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| CN107588322A (en) * | 2017-09-19 | 2018-01-16 | 国网安徽省电力公司电力科学研究院 | Sulfur hexafluoride gas mixture Recovery Purifying distribution making-up air device and its operating method |
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| CN105864632A (en) * | 2016-05-20 | 2016-08-17 | 国家电网公司 | Mobile device for rapid recovery and supplementation of sulfur hexafluoride-carbon tetrafluoride gas mixture |
| CN105864632B (en) * | 2016-05-20 | 2018-09-21 | 国家电网公司 | Mobile sulfur hexafluoride and carbon tetrafluoride mixed gas quickly recycle making-up air device |
| CN106823871A (en) * | 2017-02-10 | 2017-06-13 | 平高集团有限公司 | A kind of gas separating and recovery system and mixed gas experiment gas circuit |
| CN106823871B (en) * | 2017-02-10 | 2020-03-13 | 平高集团有限公司 | Gas separation recovery system and gas circuit for mixed gas experiment |
| CN106958739A (en) * | 2017-04-27 | 2017-07-18 | 无锡爱邦辐射技术有限公司 | Electron linear accelerator aerating device with automatic protection functions |
| CN107588322A (en) * | 2017-09-19 | 2018-01-16 | 国网安徽省电力公司电力科学研究院 | Sulfur hexafluoride gas mixture Recovery Purifying distribution making-up air device and its operating method |
| CN107588322B (en) * | 2017-09-19 | 2024-05-17 | 国网安徽省电力公司电力科学研究院 | Gas distribution and supplementing device for purifying and recycling sulfur hexafluoride mixed gas and operation method thereof |
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