CN105161993A - 10 kv switch cabinet realizing live-line dedusting - Google Patents
10 kv switch cabinet realizing live-line dedusting Download PDFInfo
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- CN105161993A CN105161993A CN201510653292.3A CN201510653292A CN105161993A CN 105161993 A CN105161993 A CN 105161993A CN 201510653292 A CN201510653292 A CN 201510653292A CN 105161993 A CN105161993 A CN 105161993A
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- 239000000428 dust Substances 0.000 claims abstract description 82
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 230000000694 effects Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims description 37
- 239000007924 injection Substances 0.000 claims description 37
- 239000006096 absorbing agent Substances 0.000 claims description 27
- 238000003860 storage Methods 0.000 claims description 24
- 238000010521 absorption reaction Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000000746 purification Methods 0.000 claims description 20
- 238000001556 precipitation Methods 0.000 claims description 16
- 239000011261 inert gas Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 9
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000005672 electromagnetic field Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 claims description 3
- 241000237858 Gastropoda Species 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 235000005770 birds nest Nutrition 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002121 nanofiber Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 235000005765 wild carrot Nutrition 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 21
- 238000005507 spraying Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a 10 kv switch cabinet realizing live-line dedusting. The switch cabinet comprises a cabinet body. The cabinet body is provided with a dedusting mechanism. The switch cabinet is simple in structure, convenient to use, convenient to popularize, applicable to all cabinet inner cavity structures of various kinds of switch cabinets and good in dedusting effect. A control system of the dedusting mechanism is reasonable in matching, tacit in cooperation, unified in control and capable of uniformly and cooperatively completing dedusting, spraying, cleaning and gas exhausting. Air more suitable for dedusting is provided by a cleaning method, a supercharging method and a spraying method enable dedusting air to form air flows, a better deducting effect is achieved, and dust absorbed on parts is removed. The dedusting mechanism is suitable for live-line dedusting of the cabinet switch, and the switching frequency caused by dedusting is lowered, so that the service lifetime of the switch cabinet is prolonged, and dust is prevented from accumulating in the cabinet and further reducing the insulating property or influencing normal work of elements.
Description
Technical field
The present invention relates to a kind of 10kv switch cubicle with electric precipitation.
Background technology
10kv switch cubicle refers to for electric power system generating, transmission of electricity, distribution, electric energy conversion and plays the effects such as break-make, control or protection in consuming; 10kv switch cubicle is by making the electric equipment products of electric pressure at 3.6kV-550kV; high voltage isolator overlaps and sectionalizer with earthed switch, high voltage load switch, high pressure, several large classes such as high-voltage actuating mechanism, high-voltage explosion-proof power distribution equipment and 10kv switch cubicle.
10kv switch cubicle is widely used in power industry, it has good switching effect and insulation effect, there is good fail safe and ease for operation, but, there is many problems equally in existing 10kv switch cubicle, wherein, problem is apparent that most, cleaning problems in cabinet, the use of this 10kv switch cubicle must be stopped during existing 10kv switch cubicle cleaning, impact is normal produces, due to cleaning works, folding 10kv switch cubicle will affect the useful life of its circuit breaker simultaneously, reduce the fail safe of switch cubicle, in addition, the insulating properties that may affect switch cubicle is cleaned not in time in cabinet, the harm person or device security.
Summary of the invention
The object of the invention is to: for above-mentioned Problems existing, a kind of 10kv switch cubicle with electric precipitation is provided, can clean switch cubicle in time in switch cubicle uses, it is effective that it cleans, operating efficiency is high, avoid the hidden danger because reason clean in cabinet causes its fail safe to reduce, simultaneously, improve the utilization rate of switch cubicle, cleaning can be completed without the need to stopping this switch cubicle, reduce the number of times of this switch cubicle of folding because of cleaning, reach the object in the useful life of improving switch cubicle, improve the electrification time of switch cubicle.
The technical solution used in the present invention is as follows:
The invention discloses a kind of 10kv switch cubicle with electric precipitation, comprise cabinet, cabinet is provided with dedusting mechanism, described dedusting mechanism comprises air accumulator, purification mechanism, the mechanism of decompressor, booster body heat exchanger, jet mechanism, exhaust gear, described air accumulator is connected in the jet mechanism that is located in cabinet successively by heat exchanger, the mechanism of decompressor, described cabinet is provided with exhaust gear, exhaust gear to be linked back air accumulator by purification mechanism, heat exchanger, booster body successively, and air accumulator is built with inert gas.
Further, described purification mechanism comprises the dust catcher, humidity control device, the electrochondria absorber that connect successively; The output of described electrochondria absorber is connected with booster body; Be provided with the dust absorption net of accordion in described dust catcher, this dust absorption net is made up of bird-nest type nano-fiber material; Be provided with sponge net and stripper plate that 40 density foam make in described humidity controller, in sponge net, be provided with the through hole that some horizontal apertures are less than 3cm; Relative both sides in described electrochondria absorber are provided with electric board, have parallel magnetic field between two electric boards.
Further, described jet mechanism comprises ejector block, injector head; Described ejector block connects injector head by universal drive shaft, and have the booster cavity of taper in described injector head, injector head is provided with pressure sensor; The outlet of injector head is flat; Described ejector block is provided with motor and rotates for controlling universal drive shaft.
Further, described exhaust gear comprises blower fan, anemobiagraph and Temperature Humidity Sensor.
Further, described heat exchanger includes refrigerating chamber and heating chamber, and described heating chamber is provided with heater for heating heating chamber.
Further, the capacity of described air accumulator is 1 cubic metre, is coated with the silver of 30-50 micron thickness inside the tank skin of air accumulator, and the middle part of tank skin is vacuum layer, and the skin of tank skin is provided with the rubber layer of 1-5cm.
Due to above-mentioned dedusting mechanism, make in the cabinet of switch cubicle more clean, stop unclean in cabinet and cause the situation that switch cubicle insulating properties reduces, ensure that the safety of the person and equipment, reduce the on-off times of switch cubicle, improve useful life and the electrification time of switch cubicle.Said mechanism, the air purified by purification mechanism sprays the mode of air after booster body pressurization, clean cabinet, better cleaning effect can be reached, make electrically charged, easily the dust be adsorbed onto on cable and cabinet blown off, avoid the admission rate reducing dust in air simultaneously, reach better cleaning effect.Said mechanism can triple purifications, the degree of purity of air can be made better, and its cleaning efficiency is higher, first the dust of larger particles in absorbed air, then air is carried out desiccant dehumidification; Due to charging equipment charged meeting heat release, now comparatively ambient temperature is high for the temperature of cable, carry out heating up to air and can reduce the temperature difference of cable and cleaning gas tream, when avoiding the temperature difference large, the situation of the service life reduction of cable, produce magnetic field between parallel electric board, effectively can adsorb charged corpuscle, prevent charged particle on the impact of switch cubicle inner cable insulating properties.The air outlet of said mechanism flat, when strengthening the condensation degree of air-out, can strengthen air output, having sweeping efficiency and better wind speed faster, complete cleaning works.
Above-mentioned exhaust gear can measure wind speed, the humiture in exit, and controls the rotating speed of blower fan, realizes negative pressure cleaning in cabinet.
Further, it is characterized in that, the control system of its dedusting mechanism, comprising:
(1), control unit;
(2), clean unit, comprise dust catcher, humidity controller, electrochondria absorber, the dust absorption net in dust catcher is to airflow filtering; Air-flow after filtration enters humidity controller, humidity controller comprises sponge net, stripper plate, there is the flexure type through hole that some apertures are not more than 3cm, length is greater than 10cm in sponge net, the madial wall of through hole is provided with granularity and is less than 5 object active carbons, sponge net absorbs the moisture in air-flow and again filters air-flow; Stripper plate is horizontally arranged with burr, the height of its burr is 3-5mm, the spacing of burr is 5-8mm, stripper plate is connected with squeezer, squeezer controls stripper plate and extrudes this sponge net thus reduce the aperture of through hole and increase the density of sponge simultaneously, improve the moisture sorption effect of sponge net, and the initial density of sponge is 41kg/m3-42kg/m3; Electrochondria absorber comprises electric board, the charged rear formation electromagnetic field of electric board, the intensity of electromagnetic field for adsorbing charged corpuscle, electric board is also provided with magnet strip by voltage control, between electric board and magnet strip, be also provided with thickness is the insulating barrier that the nonwoven fabrics of 3-7mm is made; Flow deflector is provided with between electric board;
(3), compress cell, comprise booster body, booster body comprises air engine, pneumatics chamber, pneumatics fan, pneumatics chamber is snail type, pneumatics fan is placed in pneumatics chamber and is connected with air compressor machine rotating shaft, pneumatics fan is provided with guiding gutter, the flabellum of pneumatics fan is coated with the rubber layer that 2-3mm is thick, and heat exchanger is connected with pneumatics chamber;
(4), injection unit, comprise jet mechanism, injection equipment comprises ejector block and injector head, everything axle is set between ejector block and injector head, ejector block is provided with motor to rotate for controlling universal drive shaft, ejector block is connected on cabinet madial wall by scroll slide rail, ejector block is provided with walking mechanism, walking mechanism controls ejector block and moves in spiral track, the outlet of injector head is flat, the air-flow that injector head is sprayed is fan-shaped, injector head is connected with pressure sensor, the wind pressure signal recorded is transferred to control unit through conductor wire by this pressure sensor, this injection unit is also connected with dust detector, this dust detector is connected with control unit,
(5), exhaust unit, comprise blower fan, air velocity transducer, Temperature Humidity Sensor; Blower fan, air velocity transducer, Temperature Humidity Sensor are all connected with control unit, exhaust unit is communicated with cabinet inside, exhaust unit is connected with clean unit by conduit, exhaust unit is also provided with and promptly bleeds off pressure mouth, promptly bleed off pressure mouth place and promptly bleed off pressure switch, this promptly bleeds off pressure switch and is connected with control unit;
(6), storage element, comprise air accumulator, inert gas is equipped with in its inside, and storage element is provided with Pressure gauge and pressure sensor for detecting the atmospheric pressure state of storage element, this storage element is connected with fire resisting damper, and fire resisting damper is connected to cabinet inside; Storage element is connected with compress cell with heat exchanger respectively.
(7), decompressing unit, comprise pressure-reducing valve, the control end of pressure-reducing valve is connected with control unit, and pressure-reducing valve is provided with Pressure gauge;
Control unit, comprise the control cabinet be located on cabinet, control unit is connected with clean unit, compress cell, injection unit, storage element, exhaust unit respectively, for controlling dehumidifying, the electric power absorption action of clean unit, control compress cell pressurizing action, control injection unit injection direction, speed; After startup control unit, control unit detects the dust quantity in dust detector detecting box, when control unit judges that dust quantity reaches designated value, start blower fan, air compressor machine, pressure-reducing valve successively, by the inert gas in air accumulator in clean unit, compress cell, injection unit, storage element, exhaust unit, air accumulator, cabinet Inner eycle.
Said system is applied in the dedusting mechanism of this 10kv switch cubicle, control for making unit piecemeal, cooperatively interacting between convenient operation and unit, thus reach better dust removing effects, and be conducive to the energy-conservation of this dedusting mechanism, unit can be reached normal operation, gather its improve parameter unification regulation and control run thus reach preset value, being conducive to the control of dedusting mechanism.
Further, the control method of this control system:
(1), control unit start after, control system starts blower fan, air compressor machine, pressure-reducing valve successively;
(2) air-flow, with cabinet dust enters after clean unit through exhaust unit, be introduced on the entrance of dust catcher, after dust adsorption visible in air-flow is filtered by the dust absorption net of accordion in dust catcher, air-flow exports through the outlet of dust catcher, and air-flow carries out first time and filters on dust absorption net;
(3) air-flow, exported from dust catcher outlet enters into humidity controller, air-flow is shunted in humidity controller, air-flow after shunting is respectively by the online through hole of sponge, moisture in air-flow is absorbed by sponge, peculiar smell in air-flow or partial particulate are by the charcoal absorption in through hole, air-flow is filtered for the second time, and air-flow enters in electrochondria absorber after the exit of humidity controller is collected;
(4), after air-flow enters electrochondria absorber, after flow deflector, at the upper formation sinuous flow of electrochondria absorber, in sinuous flow, charged particle is adsorbed under the effect of electric field, and air-flow is filtered for the third time, and the air-flow after filtration enters into heat exchanger through the outlet output of electromagnetic adsorption device;
(5) control unit control air compressor machine with not higher than 120r/min, fan with speed running not higher than 40r/min time, be that 0v, distance are for 10-12cm by the voltage difference in electrochondria absorber between two electric boards; Rotational speed of air compressor is 120r/min-180r/min, and when rotation speed of the fan is 40r/min-72r/min, the voltage difference between two electric boards is 12v-14v, distance is 7cm-7.5cm;
(6) control unit detects the blast of injection unit, and controls rotational speed of air compressor and improve and make blast be not less than 1kpa, and the voltage difference controlled between two electric boards is 18v-18.5v, distance is 6cm-6.3cm;
(7), the rotating speed of air compressor machine is increased to 310r/min-330r/min by control unit, the voltage between two electric boards is promoted to 24v-24.3v, makes the blast at injection unit place be not less than 1.8kpa;
(8) Temperature Humidity Sensor, in exhaust unit record relative humidity higher than 36% time, control unit controls stripper plate extruding sponge net, the density of sponge net is made to raise 43kg/m3-43.5kg/m3, make the aperture of sponge net reduce 20%-30% simultaneously, strengthen the power of booster body simultaneously, make the blast at injection unit place be 1.78kpa-1.83kpa;
(9), control unit controls the motor be located on ejector block and rotates, and injector head rotates around ejector block, its average speed rotated is 20r/min, injector head is nonuniform rotation, and velocity of rotation when injector head is downward is 16r/min, injector head upwards time velocity of rotation be 24r/min;
(10), control unit controls ejector block reciprocating motion on spiral slide rail, control unit controls the movement velocity of ejector block, when ejector block is positioned at above slide rail central point, its portable cord speed is 1-2m/min, and ejector block is 2-3m/min lower than portable cord speed during slide rail central point;
(11), to control the blast at injector head place be 0m/min lower than the translational speed on slide rail of ejector block during 1kpa to control unit, and the average rotation speed of injector head is 0r/min; When injector head place blast is 1kpa-1.5kpa, the average translational speed of ejector block on slide rail is 1m/min, and the average rotation speed of injector head is 12r/min; When injector head place blast is higher than 1.5kpa to 1.83kpa, the average rotation speed of injector head is 20r/min, and the average translational speed of ejector block on slide rail is 2m/min;
(12), the blast at injection unit place is 1.78kpa-1.83kpa, the average rotation speed of injector head is when be 20r/min, the ejector block average translational speed on slide rail being 2m/min; Pressure sensor records the blast at injector head place, and by its blast data transfer in control unit, control unit calculates according to the jet size of wind pressure value machine injector head the intake entered in cabinet;
(13), the air velocity transducer at air exhaust units place records wind speed, and wind speed data transfer is in control unit, and control unit calculates the air output of air exhaust units according to the cross-sectional sizes of the air speed value recorded and exhaust unit;
(14), when making the ratio of intake and air output be greater than 1, control unit controls air compressor machine and slows down and control fan speed raising, thus reduces the ratio of intake and air output;
(15) when the ratio of intake and air output is less than 0.89, control unit controls air compressor machine and accelerates, and the ratio of intake and air output is increased;
(16) when exhaust unit records in-cabinet temperature lower than 20 DEG C, control unit controls the heating net heating at heat exchanger place, thus cabinet temperature is raised, and controls the speed that pressure-reducing valve is decreased through this pressure-reducing valve simultaneously;
(17) when exhaust unit records temperature in cabinet higher than 150 degrees Celsius, the fire resisting damper that control unit controls storage element place is opened, and the urgent vent valve simultaneously controlling exhaust unit is opened, and inert gas is entered in cabinet.
Said method can reduce energy consumption, improve the fail safe that ash removal efficiency improves dedusting simultaneously, switch cubicle can complete cleaning works without the need to power-off, using purification words as dust-collecting air, the impurity particle in air can be avoided, affect its dust removing effects, avoid the charged particle in air simultaneously, affect the insulating properties in cabinet, reach good dust removal efficiency.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, structure is simple, easy to use, is convenient to promote, and can be adapted to each cabinet inner-cavity structure of all kinds switch cubicle, have good dust removing effects.
2, the control system of its dedusting mechanism, rationally, good teamwork, unifiedly controls in collocation, can dedusting, injection, purification, exhaust work unify cooperation and complete.
3, its purification method can provide the air being more suitable for dedusting, and boosting method and injection method can provide and make dust-collecting air form air stream, have better dust removing effects, the dust be adsorbed on parts can be removed.
4, this dedusting mechanism is applicable to the band electric precipitation work of switch cubicle, the on-off times because of dedusting reason can be reduced, thus improve the useful life of switch cubicle, prevent dust accretions from cabinet, making switch cubicle insulating properties reduce, or the situation that the normal work of components and parts is affected occur.
Accompanying drawing explanation
Fig. 1 is the 10kv switch cabinet structure figure with electric precipitation in the present invention;
Mark in figure: 1-air accumulator, the 2-mechanism of decompressor, 3-exhaust gear, 4-purification mechanism, 5-booster body, 6-heat exchanger, the jet mechanism of 7-.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
specific embodiment 1:
As Fig. 1, a kind of 10kv switch cubicle with electric precipitation of the present invention, comprise cabinet, cabinet is provided with dedusting mechanism, dedusting mechanism comprises air accumulator 1, purification mechanism 4, the mechanism of decompressor 2, booster body 5 heat exchanger 6, jet mechanism 7, exhaust gear 3, air accumulator 1 is connected in the jet mechanism 7 that is located in cabinet successively by heat exchanger 6, the mechanism of decompressor 2, cabinet is provided with exhaust gear 3, exhaust gear 3 to be linked back air accumulator 1 by purification mechanism 4, heat exchanger 6, booster body 5 successively, and air accumulator 1 is built with inert gas.
Purification mechanism 4 comprises the dust catcher, humidity control device, the electrochondria absorber that connect successively; The output of electrochondria absorber is connected with booster body 5; Be provided with the dust absorption net of accordion in dust catcher, this dust absorption net is made up of bird-nest type nano-fiber material; Be provided with sponge net and stripper plate that 40 density foam make in humidity controller, in sponge net, be provided with the through hole that some horizontal apertures are less than 3cm; Relative both sides in electrochondria absorber are provided with electric board, have parallel magnetic field between two electric boards.
Jet mechanism 7 comprises ejector block, injector head; Ejector block connects injector head by universal drive shaft, and have the booster cavity of taper in injector head, injector head is provided with pressure sensor; The outlet of injector head is flat; Ejector block is provided with motor and rotates for controlling universal drive shaft.
Exhaust gear 3 comprises blower fan, anemobiagraph and Temperature Humidity Sensor.
Heat exchanger 6 includes refrigerating chamber and heating chamber, and heating chamber is provided with heater for heating heating chamber.
The capacity of air accumulator 1 is 1 cubic metre, is coated with the silver of 30-50 micron thickness inside the tank skin of air accumulator 1, and the middle part of tank skin is vacuum layer, and the skin of tank skin is provided with the rubber layer of 1-5cm.
Due to above-mentioned dedusting mechanism, make in the cabinet of switch cubicle more clean, stop unclean in cabinet and cause the situation that switch cubicle insulating properties reduces, ensure that the safety of the person and equipment, reduce the on-off times of switch cubicle, improve useful life and the electrification time of switch cubicle.Said mechanism, the air purified by purification mechanism 4 sprays the mode of air after booster body 5 pressurizes, clean cabinet, better cleaning effect can be reached, make electrically charged, easily the dust be adsorbed onto on cable and cabinet blown off, avoid the admission rate reducing dust in air simultaneously, reach better cleaning effect.Said mechanism can triple purifications, the degree of purity of air can be made better, and its cleaning efficiency is higher, first the dust of larger particles in absorbed air, then air is carried out desiccant dehumidification; Due to charging equipment charged meeting heat release, now comparatively ambient temperature is high for the temperature of cable, carry out heating up to air and can reduce the temperature difference of cable and cleaning gas tream, when avoiding the temperature difference large, the situation of the service life reduction of cable, produce magnetic field between parallel electric board, effectively can adsorb charged corpuscle, prevent charged particle on the impact of switch cubicle inner cable insulating properties.The air outlet of said mechanism flat, when strengthening the condensation degree of air-out, can strengthen air output, having sweeping efficiency and better wind speed faster, complete cleaning works.
Above-mentioned exhaust gear 3 can measure wind speed, the humiture in exit, and controls the rotating speed of blower fan, realizes negative pressure cleaning in cabinet.
specific embodiment 2:
According to the control system of the switch cubicle of embodiment 1, comprising:
(1), control unit;
(2), clean unit, comprise dust catcher, humidity controller, electrochondria absorber, the dust absorption net in dust catcher is to airflow filtering; Air-flow after filtration enters humidity controller, humidity controller comprises sponge net, stripper plate, there is the flexure type through hole that some apertures are not more than 3cm, length is greater than 10cm in sponge net, the madial wall of through hole is provided with granularity and is less than 5 object active carbons, sponge net absorbs the moisture in air-flow and again filters air-flow; Stripper plate is horizontally arranged with burr, the height of its burr is 3-5mm, the spacing of burr is 5-8mm, stripper plate is connected with squeezer, squeezer controls stripper plate and extrudes this sponge net thus reduce the aperture of through hole and increase the density of sponge simultaneously, improve the moisture sorption effect of sponge net, and the initial density of sponge is 41kg/m3-42kg/m3; Electrochondria absorber comprises electric board, the charged rear formation electromagnetic field of electric board, the intensity of electromagnetic field for adsorbing charged corpuscle, electric board is also provided with magnet strip by voltage control, between electric board and magnet strip, be also provided with thickness is the insulating barrier that the nonwoven fabrics of 3-7mm is made; Flow deflector is provided with between electric board;
(3), compress cell, comprise booster body 5, booster body 5 comprises air engine, pneumatics chamber, pneumatics fan, pneumatics chamber is snail type, pneumatics fan is placed in pneumatics chamber and is connected with air compressor machine rotating shaft, pneumatics fan is provided with guiding gutter, the flabellum of pneumatics fan is coated with the rubber layer that 2-3mm is thick, and heat exchanger 6 is connected with pneumatics chamber;
(4), injection unit, comprise jet mechanism 7, injection equipment comprises ejector block and injector head, everything axle is set between ejector block and injector head, ejector block is provided with motor to rotate for controlling universal drive shaft, ejector block is connected on cabinet madial wall by scroll slide rail, ejector block is provided with walking mechanism, walking mechanism controls ejector block and moves in spiral track, the outlet of injector head is flat, the air-flow that injector head is sprayed is fan-shaped, injector head is connected with pressure sensor, the wind pressure signal recorded is transferred to control unit through conductor wire by this pressure sensor, this injection unit is also connected with dust detector, this dust detector is connected with control unit,
(5), exhaust unit, comprise blower fan, air velocity transducer, Temperature Humidity Sensor; Blower fan, air velocity transducer, Temperature Humidity Sensor are all connected with control unit, exhaust unit is communicated with cabinet inside, exhaust unit is connected with clean unit by conduit, exhaust unit is also provided with and promptly bleeds off pressure mouth, promptly bleed off pressure mouth place and promptly bleed off pressure switch, this promptly bleeds off pressure switch and is connected with control unit;
(6), storage element, comprise air accumulator 1, inert gas is equipped with in its inside, and storage element is provided with Pressure gauge and pressure sensor for detecting the atmospheric pressure state of storage element, this storage element is connected with fire resisting damper, and fire resisting damper is connected to cabinet inside; Storage element is connected with compress cell with heat exchanger 6 respectively.
(7), decompressing unit, comprise pressure-reducing valve, the control end of pressure-reducing valve is connected with control unit, and pressure-reducing valve is provided with Pressure gauge;
Control unit, comprise the control cabinet be located on cabinet, control unit is connected with clean unit, compress cell, injection unit, storage element, exhaust unit respectively, for controlling dehumidifying, the electric power absorption action of clean unit, control compress cell pressurizing action, control injection unit injection direction, speed; After startup control unit, control unit detects the dust quantity in dust detector detecting box, when control unit judges that dust quantity reaches designated value, start blower fan, air compressor machine, pressure-reducing valve successively, by the inert gas in air accumulator 1 in clean unit, compress cell, injection unit, storage element, exhaust unit, air accumulator 1, cabinet Inner eycle.
Said system is applied in the dedusting mechanism of this 10kv switch cubicle, control for making unit piecemeal, cooperatively interacting between convenient operation and unit, thus reach better dust removing effects, and be conducive to the energy-conservation of this dedusting mechanism, unit can be reached normal operation, gather its improve parameter unification regulation and control run thus reach preset value, being conducive to the control of dedusting mechanism.
specific embodiment 3:
Control method according to the control system of embodiment 2:
(1), control unit start after, control system starts blower fan, air compressor machine, pressure-reducing valve successively;
(2) air-flow, with cabinet dust enters after clean unit through exhaust unit, be introduced on the entrance of dust catcher, after dust adsorption visible in air-flow is filtered by the dust absorption net of accordion in dust catcher, air-flow exports through the outlet of dust catcher, and air-flow carries out first time and filters on dust absorption net;
(3) air-flow, exported from dust catcher outlet enters into humidity controller, air-flow is shunted in humidity controller, air-flow after shunting is respectively by the online through hole of sponge, moisture in air-flow is absorbed by sponge, peculiar smell in air-flow or partial particulate are by the charcoal absorption in through hole, air-flow is filtered for the second time, and air-flow enters in electrochondria absorber after the exit of humidity controller is collected;
(4), after air-flow enters electrochondria absorber, after flow deflector, at the upper formation sinuous flow of electrochondria absorber, in sinuous flow, charged particle is adsorbed under the effect of electric field, and air-flow is filtered for the third time, and the air-flow after filtration enters into heat exchanger 6 through the outlet output of electromagnetic adsorption device;
(5) control unit control air compressor machine with not higher than 120r/min, fan with speed running not higher than 40r/min time, be that 0v, distance are for 10-12cm by the voltage difference in electrochondria absorber between two electric boards; Rotational speed of air compressor is 120r/min-180r/min, and when rotation speed of the fan is 40r/min-72r/min, the voltage difference between two electric boards is 12v-14v, distance is 7cm-7.5cm;
(6) control unit detects the blast of injection unit, and controls rotational speed of air compressor and improve and make blast be not less than 1kpa, and the voltage difference controlled between two electric boards is 18v-18.5v, distance is 6cm-6.3cm;
(7), the rotating speed of air compressor machine is increased to 310r/min-330r/min by control unit, the voltage between two electric boards is promoted to 24v-24.3v, makes the blast at injection unit place be not less than 1.8kpa;
(8) Temperature Humidity Sensor, in exhaust unit record relative humidity higher than 36% time, control unit controls stripper plate extruding sponge net, the density of sponge net is made to raise 43kg/m3-43.5kg/m3, make the aperture of sponge net reduce 20%-30% simultaneously, strengthen the power of booster body 5 simultaneously, make the blast at injection unit place be 1.78kpa-1.83kpa;
(9), control unit controls the motor be located on ejector block and rotates, and injector head rotates around ejector block, its average speed rotated is 20r/min, injector head is nonuniform rotation, and velocity of rotation when injector head is downward is 16r/min, injector head upwards time velocity of rotation be 24r/min;
(10), control unit controls ejector block reciprocating motion on spiral slide rail, control unit controls the movement velocity of ejector block, when ejector block is positioned at above slide rail central point, its portable cord speed is 1-2m/min, and ejector block is 2-3m/min lower than portable cord speed during slide rail central point;
(11), to control the blast at injector head place be 0m/min lower than the translational speed on slide rail of ejector block during 1kpa to control unit, and the average rotation speed of injector head is 0r/min; When injector head place blast is 1kpa-1.5kpa, the average translational speed of ejector block on slide rail is 1m/min, and the average rotation speed of injector head is 12r/min; When injector head place blast is higher than 1.5kpa to 1.83kpa, the average rotation speed of injector head is 20r/min, and the average translational speed of ejector block on slide rail is 2m/min;
(12), the blast at injection unit place is 1.78kpa-1.83kpa, the average rotation speed of injector head is when be 20r/min, the ejector block average translational speed on slide rail being 2m/min; Pressure sensor records the blast at injector head place, and by its blast data transfer in control unit, control unit calculates according to the jet size of wind pressure value machine injector head the intake entered in cabinet;
(13), the air velocity transducer at air exhaust units place records wind speed, and wind speed data transfer is in control unit, and control unit calculates the air output of air exhaust units according to the cross-sectional sizes of the air speed value recorded and exhaust unit;
(14), when making the ratio of intake and air output be greater than 1, control unit controls air compressor machine and slows down and control fan speed raising, thus reduces the ratio of intake and air output;
(15) when the ratio of intake and air output is less than 0.89, control unit controls air compressor machine and accelerates, and the ratio of intake and air output is increased;
(16) when exhaust unit records in-cabinet temperature lower than 20 DEG C, control unit controls the heating net heating at heat exchanger 6 place, thus cabinet temperature is raised, and controls the speed that pressure-reducing valve is decreased through this pressure-reducing valve simultaneously;
(17) when exhaust unit records temperature in cabinet higher than 150 degrees Celsius, the fire resisting damper that control unit controls storage element place is opened, and the urgent vent valve simultaneously controlling exhaust unit is opened, and inert gas is entered in cabinet.
Said method can reduce energy consumption, improve the fail safe that ash removal efficiency improves dedusting simultaneously, switch cubicle can complete cleaning works without the need to power-off, using purification words as dust-collecting air, the impurity particle in air can be avoided, affect its dust removing effects, avoid the charged particle in air simultaneously, affect the insulating properties in cabinet, reach good dust removal efficiency.
To sum up, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, structure is simple, easy to use, is convenient to promote, and can be adapted to each cabinet inner-cavity structure of all kinds switch cubicle, have good dust removing effects.
2, the control system of its dedusting mechanism, rationally, good teamwork, unifiedly controls in collocation, can dedusting, injection, purification, exhaust work unify cooperation and complete.
3, its purification method can provide the air being more suitable for dedusting, and boosting method and injection method can provide and make dust-collecting air form air stream, have better dust removing effects, the dust be adsorbed on parts can be removed.
4, this dedusting mechanism is applicable to the band electric precipitation work of switch cubicle, the on-off times because of dedusting reason can be reduced, thus improve the useful life of switch cubicle, prevent dust accretions from cabinet, making switch cubicle insulating properties reduce, or the situation that the normal work of components and parts is affected occur.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the 10kv switch cubicle with electric precipitation, it is characterized in that, comprise cabinet, cabinet is provided with dedusting mechanism, described dedusting mechanism comprises air accumulator, purification mechanism, the mechanism of decompressor, booster body heat exchanger, jet mechanism, exhaust gear, described air accumulator is connected in the jet mechanism that is located in cabinet successively by heat exchanger, the mechanism of decompressor, described cabinet is provided with exhaust gear, exhaust gear to be linked back air accumulator by purification mechanism, heat exchanger, booster body successively, and air accumulator is built with inert gas.
2. the 10kv switch cubicle of band electric precipitation according to claim 1, is characterized in that, described purification mechanism comprises the dust catcher, humidity control device, the electrochondria absorber that connect successively; The output of described electrochondria absorber is connected with booster body; Be provided with the dust absorption net of accordion in described dust catcher, this dust absorption net is made up of bird-nest type nano-fiber material; Be provided with sponge net and stripper plate that 40 density foam make in described humidity controller, in sponge net, be provided with the through hole that some horizontal apertures are less than 3cm; Relative both sides in described electrochondria absorber are provided with electric board, have parallel magnetic field between two electric boards.
3. the 10kv switch cubicle of band electric precipitation according to claim 2, is characterized in that, described jet mechanism comprises ejector block, injector head; Described ejector block connects injector head by universal drive shaft, and have the booster cavity of taper in described injector head, injector head is provided with pressure sensor; The outlet of injector head is flat; Described ejector block is provided with motor and rotates for controlling universal drive shaft.
4. the 10kv switch cubicle of band electric precipitation according to claim 3, is characterized in that, described exhaust gear comprises blower fan, anemobiagraph and Temperature Humidity Sensor.
5. the 10kv switch cubicle of band electric precipitation according to claim 4, is characterized in that, described heat exchanger includes refrigerating chamber and heating chamber, and described heating chamber is provided with heater for heating heating chamber.
6. the 10kv switch cubicle of band electric precipitation according to claim 5, it is characterized in that, the capacity of described air accumulator is 1 cubic metre, is coated with the silver of 30-50 micron thickness inside the tank skin of air accumulator, the middle part of tank skin is vacuum layer, and the skin of tank skin is provided with the rubber layer of 1-5cm.
7. the 10kv switch cubicle of the band electric precipitation according to any one of claim 1 to 6, is characterized in that, the control system of its dedusting mechanism, comprising:
(1), control unit;
(2), clean unit, comprise dust catcher, humidity controller, electrochondria absorber, the dust absorption net in dust catcher is to airflow filtering; Air-flow after filtration enters humidity controller, humidity controller comprises sponge net, stripper plate, there is the flexure type through hole that some apertures are not more than 3cm, length is greater than 10cm in sponge net, the madial wall of through hole is provided with granularity and is less than 5 object active carbons, sponge net absorbs the moisture in air-flow and again filters air-flow; Stripper plate is horizontally arranged with burr, the height of its burr is 3-5mm, the spacing of burr is 5-8mm, stripper plate is connected with squeezer, squeezer controls stripper plate and extrudes this sponge net thus reduce the aperture of through hole and increase the density of sponge simultaneously, improve the moisture sorption effect of sponge net, and the initial density of sponge is 41kg/m3-42kg/m3; Electrochondria absorber comprises electric board, the charged rear formation electromagnetic field of electric board, the intensity of electromagnetic field for adsorbing charged corpuscle, electric board is also provided with magnet strip by voltage control, between electric board and magnet strip, be also provided with thickness is the insulating barrier that the nonwoven fabrics of 3-7mm is made; Flow deflector is provided with between electric board;
(3), compress cell, comprise booster body, booster body comprises air engine, pneumatics chamber, pneumatics fan, pneumatics chamber is snail type, pneumatics fan is placed in pneumatics chamber and is connected with air compressor machine rotating shaft, pneumatics fan is provided with guiding gutter, the flabellum of pneumatics fan is coated with the rubber layer that 2-3mm is thick, and heat exchanger is connected with pneumatics chamber;
(4), injection unit, comprise jet mechanism, injection equipment comprises ejector block and injector head, everything axle is set between ejector block and injector head, ejector block is provided with motor to rotate for controlling universal drive shaft, ejector block is connected on cabinet madial wall by scroll slide rail, ejector block is provided with walking mechanism, walking mechanism controls ejector block and moves in spiral track, the outlet of injector head is flat, the air-flow that injector head is sprayed is fan-shaped, injector head is connected with pressure sensor, the wind pressure signal recorded is transferred to control unit through conductor wire by this pressure sensor, this injection unit is also connected with dust detector, this dust detector is connected with control unit,
(5), exhaust unit, comprise blower fan, air velocity transducer, Temperature Humidity Sensor; Blower fan, air velocity transducer, Temperature Humidity Sensor are all connected with control unit, exhaust unit is communicated with cabinet inside, exhaust unit is connected with clean unit by conduit, exhaust unit is also provided with and promptly bleeds off pressure mouth, promptly bleed off pressure mouth place and promptly bleed off pressure switch, this promptly bleeds off pressure switch and is connected with control unit;
(6), storage element, comprise air accumulator, inert gas is equipped with in its inside, and storage element is provided with Pressure gauge and pressure sensor for detecting the atmospheric pressure state of storage element, this storage element is connected with fire resisting damper, and fire resisting damper is connected to cabinet inside; Storage element is connected with compress cell with heat exchanger respectively;
(7), decompressing unit, comprise pressure-reducing valve, the control end of pressure-reducing valve is connected with control unit, and pressure-reducing valve is provided with Pressure gauge;
Control unit, comprise the control cabinet be located on cabinet, control unit is connected with clean unit, compress cell, injection unit, storage element, exhaust unit respectively, for controlling dehumidifying, the electric power absorption action of clean unit, control compress cell pressurizing action, control injection unit injection direction, speed; After startup control unit, control unit detects the dust quantity in dust detector detecting box, when control unit judges that dust quantity reaches designated value, start blower fan, air compressor machine, pressure-reducing valve successively, by the inert gas in air accumulator in clean unit, compress cell, injection unit, storage element, exhaust unit, air accumulator, cabinet Inner eycle.
8. the 10kv switch cubicle of band electric precipitation according to claim 7, is characterized in that, the control method of this control system:
(1), control unit start after, control system starts blower fan, air compressor machine, pressure-reducing valve successively;
(2) air-flow, with cabinet dust enters after clean unit through exhaust unit, be introduced on the entrance of dust catcher, after dust adsorption visible in air-flow is filtered by the dust absorption net of accordion in dust catcher, air-flow exports through the outlet of dust catcher, and air-flow carries out first time and filters on dust absorption net;
(3) air-flow, exported from dust catcher outlet enters into humidity controller, air-flow is shunted in humidity controller, air-flow after shunting is respectively by the online through hole of sponge, moisture in air-flow is absorbed by sponge, peculiar smell in air-flow or partial particulate are by the charcoal absorption in through hole, air-flow is filtered for the second time, and air-flow enters in electrochondria absorber after the exit of humidity controller is collected;
(4), after air-flow enters electrochondria absorber, after flow deflector, at the upper formation sinuous flow of electrochondria absorber, in sinuous flow, charged particle is adsorbed under the effect of electric field, and air-flow is filtered for the third time, and the air-flow after filtration enters into heat exchanger through the outlet output of electromagnetic adsorption device;
(5) control unit control air compressor machine with not higher than 120r/min, fan with speed running not higher than 40r/min time, be that 0v, distance are for 10-12cm by the voltage difference in electrochondria absorber between two electric boards; Rotational speed of air compressor is 120r/min-180r/min, and when rotation speed of the fan is 40r/min-72r/min, the voltage difference between two electric boards is 12v-14v, distance is 7cm-7.5cm;
(6) control unit detects the blast of injection unit, and controls rotational speed of air compressor and improve and make blast be not less than 1kpa, and the voltage difference controlled between two electric boards is 18v-18.5v, distance is 6cm-6.3cm;
(7), the rotating speed of air compressor machine is increased to 310r/min-330r/min by control unit, the voltage between two electric boards is promoted to 24v-24.3v, makes the blast at injection unit place be not less than 1.8kpa;
(8) Temperature Humidity Sensor, in exhaust unit record relative humidity higher than 36% time, control unit controls stripper plate extruding sponge net, the density of sponge net is made to raise 43kg/m3-43.5kg/m3, make the aperture of sponge net reduce 20%-30% simultaneously, strengthen the power of booster body simultaneously, make the blast at injection unit place be 1.78kpa-1.83kpa;
(9), control unit controls the motor be located on ejector block and rotates, and injector head rotates around ejector block, its average speed rotated is 20r/min, injector head is nonuniform rotation, and velocity of rotation when injector head is downward is 16r/min, injector head upwards time velocity of rotation be 24r/min;
(10), control unit controls ejector block reciprocating motion on spiral slide rail, control unit controls the movement velocity of ejector block, when ejector block is positioned at above slide rail central point, its portable cord speed is 1-2m/min, and ejector block is 2-3m/min lower than portable cord speed during slide rail central point;
(11), to control the blast at injector head place be 0m/min lower than the translational speed on slide rail of ejector block during 1kpa to control unit, and the average rotation speed of injector head is 0r/min; When injector head place blast is 1kpa-1.5kpa, the average translational speed of ejector block on slide rail is 1m/min, and the average rotation speed of injector head is 12r/min; When injector head place blast is higher than 1.5kpa to 1.83kpa, the average rotation speed of injector head is 20r/min, and the average translational speed of ejector block on slide rail is 2m/min;
(12), the blast at injection unit place is 1.78kpa-1.83kpa, the average rotation speed of injector head is when be 20r/min, the ejector block average translational speed on slide rail being 2m/min; Pressure sensor records the blast at injector head place, and by its blast data transfer in control unit, control unit calculates according to the jet size of wind pressure value machine injector head the intake entered in cabinet;
(13), the air velocity transducer at air exhaust units place records wind speed, and wind speed data transfer is in control unit, and control unit calculates the air output of air exhaust units according to the cross-sectional sizes of the air speed value recorded and exhaust unit;
(14), when making the ratio of intake and air output be greater than 1, control unit controls air compressor machine and slows down and control fan speed raising, thus reduces the ratio of intake and air output;
(15) when the ratio of intake and air output is less than 0.89, control unit controls air compressor machine and accelerates, and the ratio of intake and air output is increased;
(16) when exhaust unit records in-cabinet temperature lower than 20 DEG C, control unit controls the heating net heating at heat exchanger place, thus cabinet temperature is raised, and controls the speed that pressure-reducing valve is decreased through this pressure-reducing valve simultaneously;
(17) when exhaust unit records temperature in cabinet higher than 150 degrees Celsius, the fire resisting damper that control unit controls storage element place is opened, and the urgent vent valve simultaneously controlling exhaust unit is opened, and inert gas is entered in cabinet.
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Effective date of registration: 20180928 Address after: 515000 office building and factory building of 05B1 District, Shengping second industrial zone, Jinping District, Shantou, Guangdong Applicant after: GUANGDONG ZHONGXING ELECTRIC SWITCH CO., LTD. Address before: 610000 Sichuan Chengdu Wuhou District Longmen Lane 6 1 Building 2 unit 12 Applicant before: Xia Jinchu |
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