CN203910641U - Sulfur hexafluoride sampler for electric power equipment - Google Patents
Sulfur hexafluoride sampler for electric power equipment Download PDFInfo
- Publication number
- CN203910641U CN203910641U CN201420302751.4U CN201420302751U CN203910641U CN 203910641 U CN203910641 U CN 203910641U CN 201420302751 U CN201420302751 U CN 201420302751U CN 203910641 U CN203910641 U CN 203910641U
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- power equipment
- sulphur hexafluoride
- fine
- slide block
- smooth road
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 126
- 229910018503 SF6 Inorganic materials 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 76
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 37
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 125000003003 spiro group Chemical group 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 abstract description 23
- 238000003912 environmental pollution Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000037361 pathway Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 32
- 239000007789 gas Substances 0.000 description 14
- 230000005611 electricity Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000007799 cork Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001846 repelling effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 101000856246 Arabidopsis thaliana Cleavage stimulation factor subunit 77 Proteins 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- LSJNBGSOIVSBBR-UHFFFAOYSA-N thionyl fluoride Chemical compound FS(F)=O LSJNBGSOIVSBBR-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a sulfur hexafluoride sampler for electric power equipment, which comprises a base, wherein the base is internally provided with a thick slide way and a thin slide way which are coaxially connected, the internal part of the thick slide way is slidably inserted with a sliding block, the outer end of the thick slide way is screwed with a screwed pipe, the tail end of the screwed pipe is hermetically connected to an air bag, the outer end of the sliding block is clamped with a sealing plug, the base is further internally provided with an accessory pathway, one end of the accessory pathway is communicated with the middle part of the thin slide way, the other end is communicated with the thick slide way, the base is also internally provided with a vacuum cavity, the vacuum cavity is internally provided with a piston, the piston is provided with a pull rod, the inner end of the vacuum cavity is communicated with an inner segment of the thin slide way through an auxiliary path, an outer segment of the thin slide way is provided with a connecting piece, the inner end of the sliding block is fixedly provided with a sliding plug, a spring is installed between the sliding block and the thick slide way, the sliding block is provided with a magnet, the thick slide way is provided with an electromagnet, and the base is provided with a primary button and a secondary button. The sulfur hexafluoride sampler for the electric power equipment is fast in sampling, simple to operate, high in sampling purity, convenient to carry, labor-saving in operation, capable of being operated by one person, small in waste of sulfur hexafluoride and small in environmental pollution.
Description
Technical field
The utility model relates to a kind of power equipment sulphur hexafluoride sampler.
Background technology
Sulphur hexafluoride (SF6) gas T&B, it is two chemist Moissan of France and the Lebeau artificial inert gas synthetic in 1900, before and after 1940, US military is used it for Manhattan project (core military affairs).Nineteen forty-seven, provider used.Current SF6 gas is mainly used in power industry.
Sulphur hexafluoride has good electrical insulation properties and excellent arc extinction performance.Its electric strength is 2.5 times of nitrogen under same pressure, and puncture voltage is 2.5 times of air, and arc extinguishing ability is 100 times of air, is a kind of superhigh pressure dielectric material of new generation being better than between sky G&O.Sulphur hexafluoride is with its good insulation property and arc extinction performance, as: circuit breaker, high-tension transformer, sealing gland are closed combined capacitor, hv transmission line, instrument transformer etc.
In SF6 circuit breaker, the water content of SF6 gas must can not be above standard by strict regulations.Water can with electric arc analyte in SF4 produce hydrofluoric acid (H2O+SF4 → SOF2+2HF) and corrosion material.In the time that moisture reaches capacity, also can, at insulating part surface condensation, dielectric strength significantly be reduced, even cause creeping discharge.Operating experience and upper review are analysed all and are shown: SF6 circuit breaker is because insulation system volume is less, if the water content of SF6 gas is higher, will make insulation level greatly decline, and contact resistance sharply increases, and is in operation and is easily damaged or explosion accident.Therefore, each manufactory and operation department all require strict sealing technology, and the water content of regulation SF6 gas must not be above standard simultaneously.The standard of China is that the water content of SF6 gas should be less than 300ppm(volumetric ratio).Therefore,, in above-mentioned each power equipment running, need the sulphur hexafluoride regularly its inside being filled to sample, to determine the content of the content of its each composition, particularly moisture.
Owing to there is no the national standard of sample devices, when at present sulphur hexafluoride sampling, be all that the sulphur hexafluoride filling equipment carrying by producer completes, problems are so just brought: the sulphur hexafluoride filling equipment that 1, producer carries is made for filling sulphur hexafluoride, all be provided with the inflation special equipments such as sulphur hexafluoride compressed tanks, vacuum pump, although some equipment also can be used for the sampling of sulphur hexafluoride, but utilization rate of equipment and installations is lower, the sampling time is long, and equipment volume greatly, very heavy, operate very inconvenient; 2, the sulphur hexafluoride filling equipment that producer carries is only suitable for the supporting power equipment that this factory produces, and similar power equipments inapplicable and other producers, therefore versatility is poor, need to carry the different sulphur hexafluoride filling equipments of different manufacturers while causing patrolling and examining, very trouble; 3, the power equipment operated by rotary motion that fills sulphur hexafluoride is on tower bar or transformer station top, and distance is higher, the operation of must ascending a height; While adopting at present heavy sulphur hexafluoride filling equipment to sample, generally have two kinds of sample modes, the first is lifted to power equipment sampling place by sulphur hexafluoride filling equipment exactly, now needs the auxiliary of more manpower or hanging device; The second way is that sulphur hexafluoride filling equipment is placed on to ground, carries out the sampling of sulphur hexafluoride by the sample mode of pipeline of laying; Though the second way does not need more manpower or hanging device to assist, but the pipeline extending after sampling can be stored a large amount of sulphur hexafluorides, and the sulphur hexafluoride in pipeline must be emitted in the time carrying out next power equipment sampling, next time sampling is impacted avoiding, therefore, the shortcoming of the second way is exactly not only to cause a large amount of sulphur hexafluoride wastes (sulphur hexafluoride is expensive), and can cause environmental pollution (sulphur hexafluoride is very big to human injury).
Summary of the invention
The technical problems to be solved in the utility model is for above-mentioned defect, provide a kind of rational in infrastructure, sample quick, simple to operate, sampling purity is high, easy to carry, rapid operation, a people can operate, sulphur hexafluoride waste less, power equipment sulphur hexafluoride sampler that environmental pollution is little.
For solving the problems of the technologies described above, this power equipment by the design feature of sulphur hexafluoride sampler is: in comprising, be provided with the thick slideway of coaxial connection and the pedestal in fine and smooth road, in thick slideway, slide and be fitted with slide block, thick slideway outer end is bolted with screwed pipe, screwed pipe end seal is connected with air bag, slide block outer end is installed with the sealing plug that can seal jam-pack screwed pipe, in pedestal, be also provided with lie, lie one end is communicated with middle part, fine and smooth road, the other end is communicated with the outer section of thick slideway corresponding with sealing plug, in pedestal, be also provided with vacuum chamber, the piston that being provided with in vacuum chamber slides axially is sealed and matched, the pull bar that extends vacuum chamber is installed on piston, vacuum chamber the inner is communicated with fine and smooth road inner segment by byroad, outside fine and smooth road, in section, the connector that can be connected with power equipment sulphur hexafluoride exit seal is installed, slide block the inner is installed with and can seals the sliding plug that slips into fine and smooth road inner segment and seal byroad, between slide block and thick slideway, be provided with and make sliding plug sealing slip into the inner, fine and smooth road the spring away from byroad, the magnetic patch that pole orientation axially arranges is installed on slide block, on thick slideway, battery-powered electromagnet is installed, pedestal is provided with positive button and the secondary button of controlling the forward and reverse energising of electromagnet, electromagnet drives slide block to slide by magnetic patch.
This power equipment with sulphur hexafluoride sampler by integral type vacuumize that air extraction structure realizes that sampling is quick, simple to operate, high, easy to carry, the rapid operation of sampling purity, a people can operate, sulphur hexafluoride waste less, environmental pollution is little.
Integral type vacuumizes air extraction structure and mainly comprises and be arranged on thick slideway and fine and smooth road in pedestal, and thick slideway and fine and smooth road coaxial communication arrange.For convenience of narration, by outer end, fine and smooth road, the one end being namely in communication with the outside is called inlet end, and by the outer end of thick slideway, one end that namely thick slideway is in communication with the outside is called outlet side.Between middle part, fine and smooth road and the outer section of thick slideway, be communicated with lie, thick slideway inner segment is slidably fitted with slide block, and slide block slides axially along thick slideway.Therefore,, when gas is from inlet end enters, can arrive the outer section of thick slideway by lie, and discharge by outlet side.Outside fine and smooth road, section, that is to say that fine and smooth road inlet end is provided with connector, inlet end and power equipment sulphur hexafluoride exit seal can be screwed together by this connector, has played the effect of be tightly connected fine and smooth road and the outlet of power equipment sulphur hexafluoride.Slightly outer section of slideway, namely outlet side sealing is bolted with screwed pipe, and screwed pipe end seal is connected with air bag, and the Main Function of air bag is the sulfur hexafluoride gas extracting for splendid attire.Like this, in the time that the valve in the outlet of power equipment sulphur hexafluoride is opened, sulfur hexafluoride gas will enter air bag by fine and smooth road, lie, outlet side.
In this power equipment sulphur hexafluoride sampler, slide block outer end is installed with sealing plug, and the shape of sealing plug and screwed pipe inner chamber adapt.In the time that slide block slides to outlet side, slide block will promote sealing plug and insert in screwed pipe inner chamber, so just realize the sealing to air bag.Slide block the inner is provided with the sliding plug that can slip in fine and smooth road inner segment, and sliding plug coordinates with the inner segment slipper seal of fine and smooth road.Magnetic patch is installed on slide block, and the pole orientation of magnetic patch axially arranges along thick slideway, that is to say magnetic-pole connection wire and thick slideway axially in the same way.On thick slideway, electromagnet is also installed, electromagnet is powered by positive button and secondary button by the battery being arranged in pedestal, and the effect of positive button and secondary button is to control the energising of electromagnet forward or oppositely energising, so just can control the polarity of electromagnet.In the time that the polarity of electromagnet changes, on electromagnet and slide block the suction mutually of magnetic patch still the relation of repelling each other will change, therefore can play and promote slide block away from electromagnet or pull the effect of slide block near electromagnet.
In pedestal, be also provided with vacuum chamber, vacuum chamber the inner is communicated with fine and smooth road inner segment middle part by byroad.In vacuum chamber, be provided with piston, piston periphery coordinates with the slipper seal of vacuum chamber inwall.Pull bar is installed on piston, and pull bar extends vacuum chamber, by driving pull bar can drive piston to slide along vacuum chamber.Connect the outlet of power equipment sulphur hexafluoride at inlet end, outlet side is spirally connected under the prerequisite of screwed pipe and air bag, in the time pulling out pull bar, piston is by the air of discharging in vacuum chamber, and by byroad by the air intake vacuum chamber in fine and smooth road, lie, outlet side and air bag, play the effect vacuumizing, effectively avoid air remaining in fine and smooth road, lie, outlet side and air bag to be drawn in air bag, eliminate the influencing factor of above-mentioned air, contributed to improve the accuracy of detection of sampling sulfur hexafluoride gas.
Between slide block and thick slideway inwall, be connected with spring, spring axially arranges along thick slideway the application of force of slide block, and spring has the effect spacing to slide block sliding scale and sliding plug slipped into the effect of fine and smooth road initial alignment.Under electromagnet must not the prerequisite of electricity, slide block is only subject to spring force and magnetic patch to adsorb electromagnet and suction when ironware around nearby.In the time that above-mentioned two power reach balance, be called initial condition or nature, now, 1, slide block is positioned at the middle part of its stroke that slides axially substantially, for forward and reverse slip has reserved enough leeway; 2, sealing plug is arranged in thick slideway inner chamber, is therefore difficult for touching sealing plug, has played the protective effect that sealing plug is snapped fitted to slide block outer end; 3, sliding plug only slips into fine and smooth road inner segment sub-fraction, but does not slide into the joining place in byroad and fine and smooth road, the not shutoff byroad of the inner in fine and smooth road that is to say a now sliding plug shutoff.
When use, first by connector, inlet end is connected in the outlet of power equipment sulphur hexafluoride, then pressing positive button makes electromagnet by magnetic patch, slide block outwards be promoted, sealing plug is snapped fitted to smoothly behind slide block outer end and again presses positive button so that electromagnet dead electricity resets, screwed pipe is screwed to outlet side after then flattening air bag, now pull out pull bar, piston is just by fine and smooth road, lie, air intake in thick slideway and air bag is in vacuum chamber, then pressing secondary button makes electromagnet obtain electric and promote slide block by magnetic patch and inwardly slide, now sliding plug will be promoted and be stopped up byroad port in fine and smooth road, this state is called vacuum state, so just play the isolated effect of vacuum chamber and fine and smooth road, and fine and smooth road, lie, thick slideway and air bag will approach vacuum, effectively avoid air to enter the quantity of air bag, reduce the impact of the sulphur hexafluoride of air on sampling, the particularly impact of moisture, contribute to improve accuracy of detection, then the valve that slowly turns on power equipment sulphur hexafluoride exports, slowly flows in air bag the sulphur hexafluoride in power equipment by fine and smooth road, lie, thick slideway, valve-off after air bag expand into collection capacity requirement, and again press secondary button, make electromagnet dead electricity, make slide block return to initial condition, now because byroad is communicated with fine and smooth road, so when slowly in vacuum chamber when pushing drawing rod, in vacuum chamber, original air sucking will push residual sulphur hexafluoride in fine and smooth road, lie, thick slideway in air bag, so just play the effect of clearing up fine and smooth road, lie and thick slideway, effectively reduced waste, then press positive button, make electromagnet drive slide block outwards to slide by magnetic patch, the sealing plug that slide block outer end clamps like this will be forced to fill in screwed pipe inner chamber, has played the effect of sealing screwed pipe and air bag, in the time again pressing positive button and make electromagnet dead electricity, slide block will inwardly slide to reset under the reset force of spring, because sealing plug is to be connected the relation that clamps that power is less with slide block, and sealing plug is to be connected the pressure jam-pack relation that power is larger with screwed pipe, therefore, in the time that slide block resets, sealing plug can separate with slide block outer end is automatic, finally connector is pulled down to the sampling work that can complete a power equipment sulphur hexafluoride from the outlet of power equipment sulphur hexafluoride.
Sulphur hexafluoride sampler structure dexterity for this power equipment, had both had the function of vacuumizing, and had again the function of taking out sulphur hexafluoride, not only easy to carry, operate also easily, and a people just can operate, and to sampling, sulphur hexafluoride is wasted less, environmental pollution is also very little.
As a kind of implementation, described connector comprises the supervisor who is installed on pedestal with fine and smooth road coaxial communication, supervisor outer end is installed with the master shield that diameter is thicker than supervisor, on master shield lateral surface, be installed with primary seal pad, also comprise and the mother nut of power equipment sulphur hexafluoride outlet threaded, mother nut the inner is installed with ring and is located at the main baffle ring that the upper and internal diameter of supervisor is less than master shield diameter.
Because the diameter of master shield is greater than supervisor's diameter, and being greater than predominant tube diameter, main baffle ring internal diameter is less than master shield diameter, therefore, mother nut is equivalent to ring set on supervisor, can rotate around supervisor, can slide axially along supervisor again, but due to the position-limiting action of master shield and main baffle ring, mother nut can not disengaging from being responsible for.In the time mother nut being screwed in the outlet of power equipment sulphur hexafluoride, the primary seal pad in master shield outside, by playing the effect of sealing supervisor's port and the outlet of power equipment sulphur hexafluoride, has so just been realized being tightly connected of inlet end and the outlet of power equipment sulphur hexafluoride.
As improvement, also comprise the secondary connector that is spirally connected input and power equipment sulphur hexafluoride exit seal output and connector be tightly connected, described secondary connector comprises looped pipeline, looped pipeline output is tightly connected by mother nut and supervisor, looped pipeline middle part and input are installed with respectively the secondary baffle plate that diameter is thicker than looped pipeline, on the secondary baffle plate lateral surface of looped pipeline end, be installed with secondary sealing gasket, also comprise the secondary nut with power equipment sulphur hexafluoride outlet threaded, secondary nut the inner is installed with ring set on looped pipeline between two secondary baffle plates and internal diameter is less than the secondary baffle ring of secondary baffle plate diameter, secondary nut internal diameter is less than or greater than mother nut internal diameter.
Secondary connector mainly plays other power equipment sulphur hexafluorides outlets that sealing is connected connector and can not be connected with connector, so just expanded this power equipment sulphur hexafluoride sampler and can gather the scope of power equipment, strengthened versatility.When use, first looped pipeline output is tightly connected by mother nut and supervisor, looped pipeline is just screwed into one structure with supervisor's sealing like this.Because the diameter of secondary baffle plate is greater than the diameter of looped pipeline, and being greater than looped pipeline diameter, secondary baffle ring internal diameter is less than secondary baffle plate diameter, therefore, secondary nut is equivalent to ring set on the looped pipeline between two secondary baffle plates, can rotate around looped pipeline, can slide axially along looped pipeline again, but due to the position-limiting action of secondary baffle plate and secondary baffle ring, secondary nut can not depart from from looped pipeline.In the time secondary nut being screwed in the outlet of power equipment sulphur hexafluoride, the secondary sealing gasket on the secondary baffle plate in looped pipeline end will play the effect of sealing pair pipe port and the outlet of power equipment sulphur hexafluoride.Because secondary nut internal diameter is greater than or less than mother nut internal diameter, therefore can connect by secondary connector the power equipment sulphur hexafluoride outlet that connector can not connect, join domain improves greatly.
As a kind of implementation, it is coaxial affixed and extend the straight bar section of vacuum chamber that described pull bar comprises that the spiro rod section being connected with piston also comprises with spiro rod section, spiro rod section diameter is greater than straight bar section diameter, pedestal is provided with suit pull bar the screw with spiro rod section threaded, and straight bar section outer end is installed with crank.
When just starting to vacuumize, the negative pressure value in fine and smooth road, lie and thick slideway is lower, therefore can pull with hand more like a cork piston.But along with outwards sliding gradually of sliding plug, the negative pressure value in fine and smooth road, lie and thick slideway is more and more higher, and it will be more difficult pulling piston.Pull bar is divided into after coaxial affixed two sections of straight bar section and spiro rod section, initial stage vacuumizes and can also directly pull out piston, in the time that arriving screw, spiro rod section can not directly axially pull piston, now need to utilize the threaded relation of spiro rod section and screw, by the crank of rotating rod outer end come drive screw section not only relative to screw rotate but also relatively screw move axially, realize the effect that the less power driven plunger of later stage use vacuumizes, very laborsaving.
As improvement, thick slideway inwall is provided with axially extended chute, is installed with the block that extends in chute and be slidably matched with chute on slider side wall.
Arrange after chute and block, slide block can only move in the scope that block and chute are slidably matched, play the effect of forcing restriction slide block sliding scale, also just played the sliding plug of accurate control and stopped up byroad position and accurately control sealing plug the effect of inserting the screwed pipe degree of depth.
As further improvement, the inner chamber of screwed pipe is the taper that outer imperial palace is little, screwed pipe internal chamber wall middle part is provided with the annular groove of coaxial setting, sealing plug is also the taper coordinating with inner chamber, sealing plug middle part be installed with annular groove clamp join and snap ring, center, slide block outer end is provided with sealing plug end and clamps the draw-in groove coordinating.
Screwed pipe inner chamber is arranged to the taper that outer imperial palace is little, not only can facilitates sealing plug to insert inner chamber, can also play guide effect when sealing plug is inserted to inner chamber.At internal chamber wall middle part, annular groove is set, and at sealing plug middle part, the snap ring corresponding with annular groove shape is set, can be in the time that sealing plug inserts inner chamber, snap ring is snapped fitted in annular groove, so not only play the effect of enhanced leaktightness, also sealing plug is positioned in inner chamber to the reliable separation of sealing plug and slide block end while effectively having ensured slide block reset.
As improvement, outside fine and smooth road, section is provided with pressure-reducing valve, and the driving shaft of pressure-reducing valve extends pedestal by passage.
Outside fine and smooth road, in section, install after pressure-reducing valve, can reduce pressure by the pressure-reducing valve sulphur hexafluoride that outlet is flowed out to power equipment sulphur hexafluoride, so just can slowly inflate, contribute to accurately to hold rate of air sucked in required.Pedestal is provided with the passage corresponding with pressure-reducing valve, and the driving shaft of pressure-reducing valve extends pedestal by passage, so just can control by rotating driveshaft the work of pressure-reducing valve, very convenient.
As further improvement, Pressure gauge is installed on pedestal, Pressure gauge is connected with section outside fine and smooth road.
Outside fine and smooth road, in section after setting pressure table, while closing pressure-reducing valve at turns on power equipment sulphur hexafluoride outlet valve, can detect by Pressure gauge the pressure of the sulphur hexafluoride that fills in power equipment, for the sulphur hexafluoride that whether needs to reset provides reliable basis.
As a kind of implementation, described electromagnet comprises the iron core that is arranged on thick slideway the inner, is wound with coil on iron core, and iron core middle part is provided with the iron core hole corresponding with fine and smooth road, and slide block the inner is coaxially installed with the extension rod being connected through iron core hole and with sliding plug.
Iron core not only can, for coil provides support, can also strengthen the magnetic of electromagnet, has also just strengthened the active force with magnetic patch.The iron core hole of core center can provide mobile space for the extension rod of slide block the inner, and spring housing can be contained on the extension rod between slide block and electromagnet, and like this, slide block just can drive sliding plug to slide axially by extension rod, very smooth and easy.
In sum, this power equipment is reasonable with sulphur hexafluoride sampler structure, sample quick, simple to operate, sampling purity is high, easy to carry, rapid operation, a people can operate, sulphur hexafluoride waste less, environmental pollution is little.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is elaborated.
Fig. 1 is the structural representation of the utility model nature;
Structural representation when Fig. 2 is the sliding plug obstruction of the utility model byroad;
Fig. 3 is the structural representation after the utility model sampling;
Structural representation when Fig. 4 is the utility model auxiliary connection connector;
Fig. 5 is the structural representation that extension rod and iron core hole coordinate;
Fig. 6 is electrical schematic diagram of the present utility model.
Embodiment
As shown in the figure, this power equipment is provided with the thick slideway 2 of coaxial connection and the pedestal 1 in fine and smooth road 3 in comprising with sulphur hexafluoride sampler, and the thick interior slip of slideway 2 is fitted with slide block 4.Thick slideway 2 outer ends are bolted with screwed pipe 5, and screwed pipe end seal is connected with air bag 6, and slide block outer end is installed with the sealing plug 7 that can seal jam-pack screwed pipe.In pedestal 1, be also provided with lie 8, lie 8 one end are communicated with 3 middle parts, fine and smooth road, and the other end is communicated with the outer section of thick slideway corresponding with sealing plug.In pedestal, be also provided with vacuum chamber 9, the piston 10 that being provided with in vacuum chamber slides axially is sealed and matched, is provided with the pull bar 11 that extends vacuum chamber on piston, and vacuum chamber is inner to be communicated with fine and smooth road inner segment by byroad 12.Outside fine and smooth road, in section, the connector 20 that can be connected with power equipment sulphur hexafluoride exit seal is installed.Slide block the inner is installed with can seal to slip into fine and smooth road inner segment and seal the sliding of byroad fills in 13, is provided with and makes sliding plug sealing slip into the inner, fine and smooth road the spring 19 away from byroad between slide block and thick slideway.The magnetic patch 14 that pole orientation axially arranges is installed on slide block, on thick slideway, the electromagnet 16 of being powered by battery 15 is installed, pedestal is provided with positive button 17 and the secondary button 18 of controlling the forward and reverse energising of electromagnet, and electromagnet drives slide block to slide by magnetic patch.
For convenience of narration, by outer end, fine and smooth road, the one end being namely in communication with the outside is called inlet end, and by the outer end of thick slideway, one end that namely thick slideway is in communication with the outside is called outlet side.Between middle part, fine and smooth road and the outer section of thick slideway, be communicated with lie, thick slideway inner segment is slidably fitted with slide block, and slide block slides axially along thick slideway.Therefore,, when gas is from inlet end enters, can arrive the outer section of thick slideway by lie, and discharge by outlet side.Outside fine and smooth road, section, that is to say that fine and smooth road inlet end is provided with connector, inlet end and power equipment sulphur hexafluoride exit seal can be screwed together by this connector, has played the effect of be tightly connected fine and smooth road and the outlet of power equipment sulphur hexafluoride.Slightly outer section of slideway, namely outlet side sealing is bolted with screwed pipe, and screwed pipe end seal is connected with air bag, and the Main Function of air bag is the sulfur hexafluoride gas extracting for splendid attire.Like this, in the time that the valve in the outlet of power equipment sulphur hexafluoride is opened, sulfur hexafluoride gas will enter air bag by fine and smooth road, lie, outlet side.
In this power equipment sulphur hexafluoride sampler, slide block outer end is installed with sealing plug, and the shape of sealing plug and screwed pipe inner chamber adapt.In the time that slide block slides to outlet side, slide block will promote sealing plug and insert in screwed pipe inner chamber, so just realize the sealing to air bag.Slide block the inner is provided with the sliding plug that can slip in fine and smooth road inner segment, and sliding plug coordinates with the inner segment slipper seal of fine and smooth road.Magnetic patch is installed on slide block, and the pole orientation of magnetic patch axially arranges along thick slideway, that is to say magnetic-pole connection wire and thick slideway axially in the same way.On thick slideway, electromagnet is also installed, electromagnet is powered by positive button and secondary button by the battery being arranged in pedestal, and the effect of positive button and secondary button is to control the energising of electromagnet forward or oppositely energising, so just can control the polarity of electromagnet.In the time that the polarity of electromagnet changes, on electromagnet and slide block the suction mutually of magnetic patch still the relation of repelling each other will change, therefore can play and promote slide block away from electromagnet or pull the effect of slide block near electromagnet.
In pedestal, be also provided with vacuum chamber, vacuum chamber the inner is communicated with fine and smooth road inner segment middle part by byroad.In vacuum chamber, be provided with piston, piston periphery coordinates with the slipper seal of vacuum chamber inwall.Pull bar is installed on piston, and pull bar extends vacuum chamber, by driving pull bar can drive piston to slide along vacuum chamber.Connect the outlet of power equipment sulphur hexafluoride at inlet end, outlet side is spirally connected under the prerequisite of screwed pipe and air bag, in the time pulling out pull bar, piston is by the air of discharging in vacuum chamber, and by byroad by the air intake vacuum chamber in fine and smooth road, lie, outlet side and air bag, play the effect vacuumizing, effectively avoid air remaining in fine and smooth road, lie, outlet side and air bag to be drawn in air bag, eliminate the influencing factor of above-mentioned air, contributed to improve the accuracy of detection of sampling sulfur hexafluoride gas.
Between slide block and thick slideway inwall, be connected with spring, spring axially arranges along thick slideway the application of force of slide block, and spring has the effect spacing to slide block sliding scale and sliding plug slipped into the effect of fine and smooth road initial alignment.Under electromagnet must not the prerequisite of electricity, slide block is only subject to spring force and magnetic patch to adsorb electromagnet and suction when ironware around nearby.In the time that above-mentioned two power reach balance, be called initial condition or nature, now, 1, slide block is positioned at the middle part of its stroke that slides axially substantially, for forward and reverse slip has reserved enough leeway; 2, sealing plug is arranged in thick slideway inner chamber, is therefore difficult for touching sealing plug, has played the protective effect that sealing plug is snapped fitted to slide block outer end; 3, sliding plug only slips into fine and smooth road inner segment sub-fraction, but does not slide into the joining place in byroad and fine and smooth road, the not shutoff byroad of the inner in fine and smooth road that is to say a now sliding plug shutoff.
When use, first by connector, inlet end is connected in the outlet of power equipment sulphur hexafluoride, then pressing positive button makes electromagnet by magnetic patch, slide block outwards be promoted, sealing plug is snapped fitted to smoothly behind slide block outer end and again presses positive button so that electromagnet dead electricity resets, screwed pipe is screwed to outlet side after then flattening air bag, now pull out pull bar, piston is just by fine and smooth road, lie, air intake in thick slideway and air bag is in vacuum chamber, then pressing secondary button makes electromagnet obtain electric and promote slide block by magnetic patch and inwardly slide, now sliding plug will be promoted and be stopped up byroad port in fine and smooth road, this state is called vacuum state, so just play the isolated effect of vacuum chamber and fine and smooth road, and fine and smooth road, lie, thick slideway and air bag will approach vacuum, effectively avoid air to enter the quantity of air bag, reduce the impact of the sulphur hexafluoride of air on sampling, the particularly impact of moisture, contribute to improve accuracy of detection, then the valve that slowly turns on power equipment sulphur hexafluoride exports, slowly flows in air bag the sulphur hexafluoride in power equipment by fine and smooth road, lie, thick slideway, valve-off after air bag expand into collection capacity requirement, and again press secondary button, make electromagnet dead electricity, make slide block return to initial condition, now because byroad is communicated with fine and smooth road, so when slowly in vacuum chamber when pushing drawing rod, in vacuum chamber, original air sucking will push residual sulphur hexafluoride in fine and smooth road, lie, thick slideway in air bag, so just play the effect of clearing up fine and smooth road, lie and thick slideway, effectively reduced waste, then press positive button, make electromagnet drive slide block outwards to slide by magnetic patch, the sealing plug that slide block outer end clamps like this will be forced to fill in screwed pipe inner chamber, has played the effect of sealing screwed pipe and air bag, in the time again pressing positive button and make electromagnet dead electricity, slide block will inwardly slide to reset under the reset force of spring, because sealing plug is to be connected the relation that clamps that power is less with slide block, and sealing plug is to be connected the pressure jam-pack relation that power is larger with screwed pipe, therefore, in the time that slide block resets, sealing plug can separate with slide block outer end is automatic, finally connector is pulled down to the sampling work that can complete a power equipment sulphur hexafluoride from the outlet of power equipment sulphur hexafluoride.
Sulphur hexafluoride sampler structure dexterity for this power equipment, had both had the function of vacuumizing, and had again the function of taking out sulphur hexafluoride, not only easy to carry, operate also easily, and a people just can operate, and to sampling, sulphur hexafluoride is wasted less, environmental pollution is also very little.
Use in sulphur hexafluoride sampler at this power equipment, described connector 20 comprises the supervisor 21 who is installed on pedestal 1 with fine and smooth road coaxial communication, supervisor outer end is installed with the master shield 22 that diameter is thicker than supervisor, on master shield lateral surface, be installed with primary seal pad 23, also comprise and the mother nut 24 of power equipment sulphur hexafluoride outlet threaded, mother nut the inner is installed with ring and is located at the main baffle ring 25 that the upper and internal diameter of supervisor is less than master shield diameter.Because the diameter of master shield is greater than supervisor's diameter, and being greater than predominant tube diameter, main baffle ring internal diameter is less than master shield diameter, therefore, mother nut is equivalent to ring set on supervisor, can rotate around supervisor, can slide axially along supervisor again, but due to the position-limiting action of master shield and main baffle ring, mother nut can not disengaging from being responsible for.In the time mother nut being screwed in the outlet of power equipment sulphur hexafluoride, the primary seal pad in master shield outside, by playing the effect of sealing supervisor's port and the outlet of power equipment sulphur hexafluoride, has so just been realized being tightly connected of inlet end and the outlet of power equipment sulphur hexafluoride.
This power equipment also comprises the secondary connector 26 that is spirally connected input and power equipment sulphur hexafluoride exit seal output and connector be tightly connected with sulphur hexafluoride sampler, described secondary connector comprises looped pipeline 27, looped pipeline output is tightly connected by mother nut and supervisor, looped pipeline middle part and input are installed with respectively the secondary baffle plate 28 that diameter is thicker than looped pipeline, on the secondary baffle plate lateral surface of looped pipeline end, be installed with secondary sealing gasket 29, also comprise the secondary nut 30 with power equipment sulphur hexafluoride outlet threaded, secondary nut the inner is installed with ring set on looped pipeline between two secondary baffle plates and internal diameter is less than the secondary baffle ring 31 of secondary baffle plate diameter, secondary nut internal diameter is less than or greater than mother nut internal diameter.
Secondary connector mainly plays other power equipment sulphur hexafluorides outlets that sealing is connected connector and can not be connected with connector, so just expanded this power equipment sulphur hexafluoride sampler and can gather the scope of power equipment, strengthened versatility.When use, first looped pipeline output is tightly connected by mother nut and supervisor, looped pipeline is just screwed into one structure with supervisor's sealing like this.Because the diameter of secondary baffle plate is greater than the diameter of looped pipeline, and being greater than looped pipeline diameter, secondary baffle ring internal diameter is less than secondary baffle plate diameter, therefore, secondary nut is equivalent to ring set on the looped pipeline between two secondary baffle plates, can rotate around looped pipeline, can slide axially along looped pipeline again, but due to the position-limiting action of secondary baffle plate and secondary baffle ring, secondary nut can not depart from from looped pipeline.In the time secondary nut being screwed in the outlet of power equipment sulphur hexafluoride, the secondary sealing gasket on the secondary baffle plate in looped pipeline end will play the effect of sealing pair pipe port and the outlet of power equipment sulphur hexafluoride.Because secondary nut internal diameter is greater than or less than mother nut internal diameter, therefore can connect by secondary connector the power equipment sulphur hexafluoride outlet that connector can not connect, join domain improves greatly.
In the present embodiment, it is coaxial affixed and extend the straight bar section 33 of vacuum chamber that described pull bar 11 comprises that the spiro rod section being connected with piston 10 also comprises with spiro rod section 32, spiro rod section diameter is greater than straight bar section diameter, pedestal is provided with suit pull bar the screw 34 with spiro rod section threaded, and straight bar section outer end is installed with crank 35.When just starting to vacuumize, the negative pressure value in fine and smooth road, lie and thick slideway is lower, therefore can pull with hand more like a cork piston.But along with outwards sliding gradually of sliding plug, the negative pressure value in fine and smooth road, lie and thick slideway is more and more higher, and it will be more difficult pulling piston.Pull bar is divided into after coaxial affixed two sections of straight bar section and spiro rod section, initial stage vacuumizes and can also directly pull out piston, in the time that arriving screw, spiro rod section can not directly axially pull piston, now need to utilize the threaded relation of spiro rod section and screw, by the crank of rotating rod outer end come drive screw section not only relative to screw rotate but also relatively screw move axially, realize the effect that the less power driven plunger of later stage use vacuumizes, very laborsaving.
Thick slideway 2 inwalls are provided with axially extended chute 36, are installed with the block 37 that extends in chute and be slidably matched with chute on slider side wall.Arrange after chute and block, slide block can only move in the scope that block and chute are slidably matched, play the effect of forcing restriction slide block sliding scale, also just played the sliding plug of accurate control and stopped up byroad position and accurately control sealing plug the effect of inserting the screwed pipe degree of depth.
The inner chamber 39 of screwed pipe 5 is the taper that outer imperial palace is little, screwed pipe internal chamber wall middle part is provided with the annular groove 38 of coaxial setting, sealing plug is also the taper coordinating with inner chamber, sealing plug middle part be installed with annular groove clamp join and snap ring 40, center, slide block outer end is provided with sealing plug end and clamps the draw-in groove 41 coordinating.Screwed pipe inner chamber is arranged to the taper that outer imperial palace is little, not only can facilitates sealing plug to insert inner chamber, can also play guide effect when sealing plug is inserted to inner chamber.At internal chamber wall middle part, annular groove is set, and at sealing plug middle part, the snap ring corresponding with annular groove shape is set, can be in the time that sealing plug inserts inner chamber, snap ring is snapped fitted in annular groove, so not only play the effect of enhanced leaktightness, also sealing plug is positioned in inner chamber to draw-in groove 41 reliable separation of sealing plug and slide block end while effectively having ensured slide block reset.
Outside fine and smooth road, section is provided with pressure-reducing valve 42, and the driving shaft 43 of pressure-reducing valve extends pedestal by passage 44.Outside fine and smooth road, in section, install after pressure-reducing valve, can reduce pressure by the pressure-reducing valve sulphur hexafluoride that outlet is flowed out to power equipment sulphur hexafluoride, so just can slowly inflate, contribute to accurately to hold rate of air sucked in required.Pedestal is provided with the passage corresponding with pressure-reducing valve, and the driving shaft of pressure-reducing valve extends pedestal by passage, so just can control by rotating driveshaft the work of pressure-reducing valve, very convenient.
Pressure gauge 45 is installed on pedestal, and Pressure gauge is connected with section outside fine and smooth road.Outside fine and smooth road, in section after setting pressure table, while closing pressure-reducing valve at turns on power equipment sulphur hexafluoride outlet valve, can detect by Pressure gauge the pressure of the sulphur hexafluoride that fills in power equipment, for the sulphur hexafluoride that whether needs to reset provides reliable basis.
In the present embodiment, described electromagnet 16 comprises the iron core 46 that is arranged on thick slideway the inner, on iron core, be wound with coil 47, iron core middle part is provided with the iron core hole 48 corresponding with fine and smooth road, and slide block the inner is coaxially installed with the extension rod 49 being connected through iron core hole and with sliding plug.Iron core not only can, for coil provides support, can also strengthen the magnetic of electromagnet, has also just strengthened the active force with magnetic patch.The iron core hole of core center can provide mobile space for the extension rod of slide block the inner, and spring housing can be contained on the extension rod between slide block and electromagnet, and like this, slide block just can drive sliding plug to slide axially by extension rod, very smooth and easy.
Claims (9)
1. a power equipment sulphur hexafluoride sampler, it is characterized in that: in comprising, be provided with the thick slideway (2) of coaxial connection and the pedestal (1) of fine and smooth road (3), in thick slideway (2), slide and be fitted with slide block (4), thick slideway (2) outer end is bolted with screwed pipe (5), screwed pipe (5) end seal is connected with air bag (6), slide block (4) outer end is installed with the sealing plug (7) that can seal jam-pack screwed pipe (5), in pedestal (1), be also provided with lie (8), lie (8) one end is communicated with fine and smooth road (3) middle part, the other end is communicated with the outer section of thick slideway (2) corresponding with sealing plug (7), in pedestal (1), be also provided with vacuum chamber (9), the piston (10) that being provided with in vacuum chamber (9) slides axially is sealed and matched, the pull bar (11) that extends vacuum chamber (9) is installed on piston (10), vacuum chamber (9) is inner to be communicated with fine and smooth road (3) inner segment by byroad (12), in the outer section in fine and smooth road (3), the connector (20) that can be connected with power equipment sulphur hexafluoride exit seal is installed, slide block (4) the inner is installed with and can seals the sliding plug (13) that slips into fine and smooth road (3) inner segment and seal byroad (12), between slide block (4) and thick slideway (2), be provided with and make sliding plug (13) sealing slip into the inner, fine and smooth road (3) the spring (19) away from byroad (12), the magnetic patch (14) that pole orientation axially arranges is installed on slide block (4), on thick slideway (2), the electromagnet (16) by battery (15) power supply is installed, pedestal (1) is provided with positive button (17) and the secondary button (18) of controlling the forward and reverse energising of electromagnet (16), electromagnet (16) drives slide block (4) to slide by magnetic patch (14).
2. power equipment as claimed in claim 1 sulphur hexafluoride sampler, it is characterized in that: described connector (20) comprises and is installed in the upper supervisor (21) with fine and smooth road (3) coaxial communication of pedestal (1), supervisor (21) outer end is installed with diameter than supervisor's (21) thick master shield (22), on master shield (22) lateral surface, be installed with primary seal pad (23), also comprise the mother nut (24) with power equipment sulphur hexafluoride outlet threaded, mother nut (24) the inner is installed with ring and is located at that supervisor (21) goes up and internal diameter is less than the main baffle ring (25) of master shield (22) diameter.
3. power equipment as claimed in claim 2 sulphur hexafluoride sampler, it is characterized in that: also comprise the secondary connector (26) that is spirally connected input and power equipment sulphur hexafluoride exit seal output and connector be tightly connected, described secondary connector (26) comprises looped pipeline (27), looped pipeline (27) output is tightly connected by mother nut and supervisor, looped pipeline (27) middle part and input are installed with respectively the secondary baffle plate (28) that diameter is thicker than looped pipeline (27), on secondary baffle plate (28) lateral surface of looped pipeline (27) end, be installed with secondary sealing gasket (29), also comprise the secondary nut (30) with power equipment sulphur hexafluoride outlet threaded, secondary nut (30) the inner is installed with the secondary baffle ring (31) that the upper and internal diameter of ring set looped pipeline (27) between two secondary baffle plates (28) is less than secondary baffle plate (28) diameter, secondary nut (30) internal diameter is less than or greater than mother nut (24) internal diameter.
4. the power equipment sulphur hexafluoride sampler as described in claim as arbitrary in claim 1-3, it is characterized in that: it is coaxial affixed and extend the straight bar section (33) of vacuum chamber (9) that described pull bar (11) comprises that the spiro rod section (32) being connected with piston (10) also comprises with spiro rod section (32), spiro rod section (32) diameter is greater than straight bar section (33) diameter, pedestal (1) is provided with suit pull bar (11) the screw (34) with spiro rod section (32) threaded, and straight bar section (33) outer end is installed with crank (35).
5. power equipment as claimed in claim 4 sulphur hexafluoride sampler, it is characterized in that: thick slideway (2) inwall is provided with axially extended chute (36), on slide block (4) sidewall, be installed with the block (37) that extends in chute (36) and be slidably matched with chute (36).
6. power equipment as claimed in claim 5 sulphur hexafluoride sampler, it is characterized in that: the inner chamber (39) of screwed pipe (5) is the taper that outer imperial palace is little, screwed pipe (5) internal chamber wall middle part is provided with the annular groove (38) of coaxial setting, sealing plug (7) is also the taper coordinating with inner chamber (39), sealing plug (7) middle part be installed with annular groove (38) clamp join and snap ring (40), slide block (4) center, outer end is provided with sealing plug (7) end and clamps the draw-in groove (41) coordinating.
7. power equipment as claimed in claim 6 sulphur hexafluoride sampler, is characterized in that: fine and smooth road (3) outer section is provided with pressure-reducing valve (42), and the driving shaft (43) of pressure-reducing valve (42) extends pedestal (1) by passage (44).
8. power equipment as claimed in claim 7 sulphur hexafluoride sampler, is characterized in that: Pressure gauge (45) is installed on pedestal (1), and Pressure gauge (45) is connected with fine and smooth road (3) outer section.
9. power equipment as claimed in claim 8 sulphur hexafluoride sampler, it is characterized in that: described electromagnet (16) comprises the iron core (46) that is arranged on thick slideway (2) the inner, on iron core (46), be wound with coil (47), iron core (46) middle part is provided with the iron core hole (48) corresponding with fine and smooth road (3), and slide block (4) the inner is coaxially installed with the extension rod (49) being connected through iron core hole (48) and with sliding plug (13).
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| CN201420302751.4U CN203910641U (en) | 2014-06-09 | 2014-06-09 | Sulfur hexafluoride sampler for electric power equipment |
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| CN201420302751.4U CN203910641U (en) | 2014-06-09 | 2014-06-09 | Sulfur hexafluoride sampler for electric power equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321764A (en) * | 2014-06-09 | 2016-02-10 | 国网山东省电力公司潍坊供电公司 | Sulfur hexafluoride sampler for electric power equipment |
| CN106383067A (en) * | 2015-07-30 | 2017-02-08 | 上海欧秒电力监测设备有限公司 | Sulfur hexafluoride gas density micro water monitor for GIS |
| CN107492755A (en) * | 2017-04-18 | 2017-12-19 | 宁波四九星机电科技有限公司 | One kind charging pipette tips locking device |
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2014
- 2014-06-09 CN CN201420302751.4U patent/CN203910641U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321764A (en) * | 2014-06-09 | 2016-02-10 | 国网山东省电力公司潍坊供电公司 | Sulfur hexafluoride sampler for electric power equipment |
| CN105321764B (en) * | 2014-06-09 | 2018-02-13 | 国网山东省电力公司潍坊供电公司 | Power equipment sulfur hexafluoride sampler |
| CN108168960A (en) * | 2014-06-09 | 2018-06-15 | 国网山东省电力公司潍坊供电公司 | A kind of quick power equipment sulfur hexafluoride sampling apparatus of sampling |
| CN106383067A (en) * | 2015-07-30 | 2017-02-08 | 上海欧秒电力监测设备有限公司 | Sulfur hexafluoride gas density micro water monitor for GIS |
| CN107492755A (en) * | 2017-04-18 | 2017-12-19 | 宁波四九星机电科技有限公司 | One kind charging pipette tips locking device |
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Granted publication date: 20141029 Termination date: 20180609 |