CN204615183U - A kind of vertical power distribution cabinet - Google Patents

Abstract

The utility model discloses a kind of vertical power distribution cabinet, be applicable to the dust pelletizing system comprising cleaner, electric power system and electric-control system, power distribution cabinet arranges power distribution cabinet hanger in cabinet rear wall corner; Power distribution cabinet hanger comprises one " L " template; " L " template comprises the first side plate and the second side plate; First side plate and the second side plate offer a lifting hole(eyelet) and some installing holes, in order to be installed on power distribution cabinet by securing member by " L " template; One of them side plate of " L " template is fixed on cabinet, and another side plate stretches out outside cabinet, power distribution cabinet and construction sidewall to be fixed.The dust pelletizing system that the utility model provides and subsystem or parts, can at least improving dust removing effects, optimize supply power mode or the stable operation of the equipment of guarantee some in improve systematic function.

Description

A kind of vertical power distribution cabinet

Technical field

The utility model relates to green technology, particularly relates to a kind of dust pelletizing system and subsystem or parts.

Background technology

Prior art often uses the various cleaner such as cyclone dust collector, sack cleaner to carry out dedusting, does not integrate preferably, cause dust removing effects not ideal enough between each cleaner.In addition, existing dust pelletizing system to be powered inadequate energy-conserving and environment-protective by civil power, and power distribution cabinet structure is reasonable not, and layout is compact not.In addition, existing dust pelletizing system handling good not, interference protection measure is not ideal enough, and security of system is poor, and load equipment runs stable not.In view of this, be necessary to be optimized design, effectively to improve the performance of dust pelletizing system from corresponding aspect to dust pelletizing system and subsystem or parts.

Utility model content

For the defect that prior art exists, the purpose of this utility model is to provide a kind of dust pelletizing system and subsystem or parts, to improve the performance of dust pelletizing system.

For solving above technical problem, the utility model provides a kind of vertical power distribution cabinet, be applicable to comprise cleaner, the dust pelletizing system of electric power system and electric-control system, cleaner comprises cyclone dust collector for two-stage dust removal and sack cleaner, on the exhausting duct that blower fan is arranged at sack cleaner or on the air inlet duct of cyclone dust collector, the electric supply installation of electric power system is powered to power distribution cabinet by photovoltaic power supply module or mains-supplied module, the control module of electric-control system drives the motor rotation as AC load when power distribution cabinet output current, power distribution cabinet arranges power distribution cabinet hanger in cabinet rear wall corner, power distribution cabinet hanger comprises one " L " template, " L " template comprises the first side plate and the second side plate, first side plate and the second side plate offer a lifting hole(eyelet) and some installing holes, in order to be installed on power distribution cabinet by securing member by " L " template, one of them side plate of " L " template is fixed on cabinet, and another side plate stretches out outside cabinet, power distribution cabinet and construction sidewall to be fixed.

Compared with prior art, the utility model is at least desirable obtains following technique effect in a certain respect:

1, dust removing effects is improved.The advantage integrating cyclone dust collector and sack cleaner carries out two-stage dust removal, and dust removing effects is better, can meet the dedusting demand of high dust construction environment.Especially, in dust pelletizing system, fan impeller blade adopts small rut or broached-tooth design, can reduce vibration & noise, contributes to improving fan efficiency.

2, supply power mode is optimized.On the one hand, adopt photovoltaic and civil power two kinds of modes to power, can clean energy resource be effectively utilized, be conducive to energy-conserving and environment-protective.On the other hand, power distribution cabinet adopts modular construction to be convenient to install, and the wiring of optimization and cabling mode are conducive to saving cost, solves the difficulty of cabling bundle line.

3, equipment stable operation is ensured.Adopt the measure of secondary lightning protection, equipment use fail safe can be improved, extend its useful life.Shielded type cable adopts 2 ground connection, is conducive to improving interference free performance.Control module is optimized, and being conducive to raising can be handling, and contributes to the stable operation of guarantee equipment.

Accompanying drawing explanation

By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and is not thought restriction of the present utility model.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:

Fig. 1 is the schematic diagram of the utility model cleaner;

Fig. 2 is the schematic diagram of the utility model cyclone dust collector;

Fig. 3 is the schematic diagram of the utility model sack cleaner;

Fig. 4 is the schematic diagram of the utility model blower fan;

Fig. 5 is the schematic diagram of the utility model draught fan impeller;

Fig. 6 is the schematic diagram of the utility model fan blade embodiment one;

Fig. 7 is the schematic diagram of the utility model fan blade embodiment two;

Fig. 8 is the utility model embodiment power distribution cabinet general assembly drawing;

Fig. 9 is the rearview of Fig. 8;

Figure 10 is the rearview that Fig. 8 removes postnotum;

Figure 11 is the front view of the utility model power distribution cabinet wire structures;

Figure 12 is the rearview of Figure 11;

Figure 13 is the front view of the utility model power distribution cabinet line structure;

Figure 14 is the right view of Figure 13;

Figure 15 is the vertical view of Figure 13;

Figure 16 is the upward view of Figure 13;

Figure 17 is the schematic diagram of power distribution cabinet hanger;

Figure 18 is the schematic diagram of vertical power distribution cabinet;

Figure 19 is the schematic diagram of hanging power distribution cabinet;

Figure 20 is the block diagram of the utility model electric supply installation;

Figure 21 is the block diagram of the utility model photovoltaic power supply module;

Figure 22 is the circuit theory diagrams of the utility model inverter circuit;

Figure 23 is the block diagram of the utility model electric-control system;

Figure 24 is the electrical principle block diagram of the utility model control module;

Figure 25 is the earthing mode of shielded type cable;

Figure 26 is the schematic diagram of shielded type cable.

Embodiment

Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.

The utility model dust pelletizing system is optimized improvement in cleaner, electric power system and electric-control system etc., is described respectively below.

1, cleaner

See Fig. 1, it is the schematic diagram of the utility model cleaner.This cleaner comprises cyclone dust collector for two-stage dust removal and sack cleaner, concrete structure is: cleaner comprises and connects cyclone dust collector 4 and sack cleaner 1, cyclone dust collector 4 are communicated with by airduct 5 with sack cleaner 1, blower fan 6 is arranged at (or on air inlet duct of cyclone dust collector 4) on the exhausting duct of sack cleaner 1, cyclone dust collector 4 be connected to dust arrester 7 to collect dust with sack cleaner 1.Dusty gas enters into cyclone dust collector 4 from air inlet Pi and carries out primary dust removing, enter into sack cleaner 1 afterwards again and carry out two-stage dust removal, two-stage dedusting gained dust is collected by integrator 7, clean wind after dedusting is discharged by air outlet Po, realize two-stage dedusting thus, better dust removing effects can be obtained.

As shown in Figure 1, the present embodiment is provided with vibration rack 3, and sack cleaner 1 is installed on vibration rack 3 by vibrating spring 2, and Vibration on Start-up support 3 can shake off the laying dust on sack cleaner 1, like this can cleaning cloth bag dust collector 1 effectively, to keep good dust removing effects.

The present embodiment is optimized design to the subsystems such as cyclone dust collector 4, sack cleaner 1, blower fan 6 or parts, and citing is described in detail respectively below.

See Fig. 2, the structure of the utility model cyclone dust collector is shown.These cyclone dust collector 4 comprise cyclone cylinder 42, cyclone cylinder 42 inner chamber is provided with helical, the top of cyclone cylinder 42 arranges collection blast cap 44, the chamber wall of collection blast cap 44 and cyclone cylinder 42 arranges cyclone cylinder air duct joint 1 and cyclone cylinder air duct joint 2 43 respectively, the bottom of cyclone cylinder 42 arranges cyclone dust removal ash bucket 41, and cyclone dust removal ash bucket 41 is connected to dust arrester 7.These cyclone dust collector 4 except heavy mechanism be that dust-contained airflow is rotated, by means of centrifugal force dust be separated from air-flow and trap in wall, relending and help Action of Gravity Field to make dust fall into cyclone dust removal ash bucket 41.

See Fig. 3, the structure of this practical sack cleaner is shown.This sack cleaner comprises the casing be made up of upper box 14 and lower box 13, the casing air duct joint one (scheming not shown) of upper box 14 is connected with cyclone cylinder air duct joint 2 43 by airduct, the casing air duct joint 2 15 of lower box 13 is connected with blower fan 6 by airduct, makes blower fan 6 be arranged on the exhausting duct of sack cleaner 1 thus.The inside of lower box 13 arranges filter bag 16, the bottom of lower box 13 arranges bag-type dust wind scoop 12, this bag-type dust wind scoop 12 is fixed on sack cleaner column 11 by gusset 17, and this bag-type dust wind scoop 12 and the interface channel of dust arrester 7 arrange control of dust valve 18.Dusty gas enters casing by sack cleaner 1 entrance, blower fan 6 is entered by filter bag 16 purified gas, sucked by blower fan 6 afterwards and directly enter indoor (can also take over and be discharged to outdoor), undertaken filtering rear dust collection in bag-type dust wind scoop 12 by filter bag 16, these dust are collected in dust arrester 7 by On/Off control of dust valve 18.

In the utility model, cleaner provides the wind-force of dedusting by blower fan 6, is described in detail below to the structure of blower fan 6.

See Fig. 4, it is the schematic diagram of the utility model blower fan.Blower fan 6 comprises casing 62 and impeller 63, and the casing 62 with scroll casing shape air channel is installed on support 61, and impeller 63 is rotated by impeller shaft 64 and is installed on casing 62 inside, and impeller shaft 64 is in transmission connection in the power output shaft of motor 8.In this example, between impeller 63 and motor 8, adopt belt drive to connect, alternate manner certainly also can be adopted to be in transmission connection, do not repeating at this.

See Fig. 5, the utility model fan impeller structure is shown.This draught fan impeller 63 comprises left and right end plate 632 (only one end being shown in figure) and more blades 631, wherein: left and right end plate 632 is separately fixed on impeller shaft (scheming not shown); All blades 631 to be folded between left and right end plate 632 along the axial distribution of impeller shaft respectively.Especially, blade 631 longitudinally curves curve-like (preferably curving arc-shaped) perpendicular to the cross section of impeller shaft, and blade 631 thickness reduces to blade afterbody gradually from root of blade, be conducive to keeping good aerodynamic characteristic and good structural strength.This draught fan impeller improves blade construction, and the whirlpool produced during airflow passes trailing edge is smashed, thus effectively reduces flow resistance, reduces vibration & noise, improves fan efficiency, illustrates further below.

See Fig. 6, the utility model embodiment one fan blade structure is shown.The trailing edge of every sheet blade 631 is distributed with Series Blade small rut 6311, and these small ruts 6311 can be circle, square etc.Air-flow is entered by the leading edge of blade 631 under the effect of rotary blade, when the trailing edge of airflow passes blade 631, reduces the whirlpool of blade afterbody under the effect of blade small rut 6311, is smashed by original overall air-flow simultaneously, thus adds the disturbance of air-flow; The Maelstrom produced after so just air-flow being flow through blade is divided into little whirlpool, thereby reduces resistance, vibration & noise.Be understandable that, the present embodiment also can arrange some blade small ruts 6311 in the leading edge of every sheet blade 631 simultaneously, is smashed by the whirlpool that trailing edge 6313 produces by small rut structure; Meanwhile, blade small rut 6311 whirlpool that also can will produce during airflow passes blade inlet edge well.Certainly, also only blade small rut 6311 can be set in the leading edge of blade 631.

See Fig. 7, the utility model embodiment two fan blade structure is shown.The trailing edge of every sheet blade 631 is provided with some blade sawtooth 6312, and the height of its Leaf sawtooth 6312 is 15% ~ 40% with the ratio of the width of blade sawtooth 6312, and the angle of hook of blade sawtooth 6312 is 30 ° ~ 130 °; The tooth top 63122 of blade sawtooth 6312 is flat tooth top, and the teeth groove 63121 of blade sawtooth 6312 is V-notch, certainly also can adopt other shape.In addition, also the leading edge 6312 of every sheet blade 631 can be provided with some blade sawtooth 6312 simultaneously; Or, also only blade sawtooth 6312 can be set in the leading edge 6312 of blade 631.The present embodiment arranges sawtooth 6312 on blade 631, and its operation principle is identical with precedent, does not repeat them here.

2, electric power system

The electric power system of the utility model dust pelletizing system comprises electric supply installation and power distribution cabinet, and electric supply installation is powered to power distribution cabinet by mains-supplied module or photovoltaic power supply module, and motor 8 accesses power distribution cabinet to obtain electric power, is below described in detail.

Simultaneously see Fig. 8 ~ Figure 10, it is the total assembling structure of the utility model embodiment power distribution cabinet.The cabinet of this power distribution cabinet is provided with service entrance switch room, kilowatt-hour meter room and outlet switch room: service entrance switch room is provided with door-plate 91 and rear shrouding, and service entrance switch mounting panel 912 is established in indoor; Kilowatt-hour meter room is provided with shrouding 97 behind door-plate 92 and kilowatt-hour meter room, and electric meter installation board 910, electric meter installation board 911 are established in indoor, and wherein door-plate 92 can arrange lead sealing 94 and coded lock 95, in case other people illegally open above; Outlet switch room is provided with shrouding 96 behind door-plate 93 and outlet room, and indoor set out the mounting rail 98 of wiretap, and pulling buckle is with by this outlet switch room shrouding 96, can facilitate On/Off.This cabinet sidewall establishes nameplate to identify product, and rear wall corner arranges the mounting structure of power distribution cabinet hanger formula, to install the cabinet of power distribution cabinet, below further illustrates.

See Figure 11-Figure 12, it is the power distribution cabinet wire structures of the utility model embodiment.Described power distribution cabinet adopts upper, middle and lower to be divided into the layout of three Room, wherein: top is service entrance switch room S1, is provided with a lead-in circuit breaker 915, is connected to kilowatt-hour meter room S2 with cable 921; Middle part is kilowatt-hour meter room S2, is provided with some kilowatt-hour meters 916; Bottom is outlet switch room S3, is provided with earthing bar, ensures that outlet ground connection is convenient.

As shown in Figure 11 ~ Figure 12, kilowatt-hour meter room S2 is provided with electric mounting board 919, and kilowatt-hour meter 916 is installed on the front side of electric mounting board 919; And the turnover cabling of power distribution cabinet is cabling after the plate of electric mounting board 919, this contributes to saving copper conductor consumption further.In addition, electric mounting board 919 is provided with bus-bar mounting bar 922 and lower bus-bar mounting bar 923, the two ends of bus-bar 918 are respectively installed on bus-bar mounting bar 922 and lower bus-bar mounting bar 923, are convenient to install, fix bus-bar 918.

The utility model is provided with bus-bar at the rear side of power distribution cabinet, and lead-in circuit breaker 915 is connected with bus-bar 918 with kilowatt-hour meter 916.Be connected by wire between bus-bar 918 with lead-in circuit breaker 915; And the cable 917 inlet wire side of kilowatt-hour meter 916 is connected with bus-bar 918, outgoing line side is connected with outlet air switch.Because being connected mainly through bus-bar 918 between lead-in circuit breaker 915 with kilowatt-hour meter 916, more copper conductor can be saved.Can reduce like this and connect wire consumption, on the one hand escapable cost, solve the difficulty of cabling bundle line on the other hand.

Simultaneously see Figure 13 ~ Figure 16, for adopting the more excellent example of the utility model power distribution cabinet line structure.Described power distribution cabinet S adopts upper, middle and lower to be divided into the layout of three Room, wherein: top is service entrance switch room S1; Middle part is kilowatt-hour meter room S2; Bottom is outlet switch room S3.Service entrance switch room S1, kilowatt-hour meter room S2 and S3 tri-Room, outlet switch room separated from each other, appearance looks elegant simplicity generosity; Also be convenient to adopt modular design, for changing some elements separately, only need change correlated parts and just can use, and without the need to large-scale change, a lot of design time can be saved, also bringing great convenience to processing and manufacturing; Especially, the operation stability of the relatively original power distribution cabinet of power distribution cabinet is better, and fail safe improves.

As shown in FIG. 13 to 16, the top board 924 of service entrance switch room S1 arranges some top board wire inlet/outlet holes 925, they are top board circular hole and top board square hole, wherein: top board circular hole is through hole; Top board square hole is knock down hole.The base plate 926 of outlet switch room S3 arranges some base plate wire inlet/outlet holes 927, and they are base plate circular hole and base plate square hole.When power distribution cabinet is wall hanging installation and line is exposed conduit, the less circular hole of base plate or top board square hole can be knocked out, thus realize the bottom of power distribution cabinet or the line of the mode such as top or top and the bottom combination; By the larger square hole abate of base plate, then can realize the bottom line that power distribution cabinet lands when installing; The multiple mounting modes of power distribution cabinet, multiple line mode can be taken into account like this, thus realize the batch Prefabrication of power distribution cabinet and the peculation of user.

See Figure 17, it is the schematic diagram of the utility model power distribution cabinet hanger.This power distribution cabinet hanger is applicable to vertical power distribution cabinet and hanging power distribution cabinet, this power distribution cabinet hanger comprises " L " template 914, the first side plate wherein and the second side plate offer a lifting hole(eyelet) 9141 and multiple installing hole 9142, wherein can run through screw or bolt etc. securing member, thus " L " template 914 is installed on the cabinet of power distribution cabinet.Installing hole 9142 is wherein multiple circular hole, or is multiple square hole, also can be an oblong slots.Be convenient to like this adjust described " L " the assembling height of template 914 and power distribution cabinet, thus the versatility of increase mounting structure.This mounting structure can fold the first side plate and the second side plate by sheet metal or other material, forms one " L " template 914 thus, then on first side plate and the second side plate of " L " template, offers lifting hole(eyelet) 9141 and installing hole 9142.Certainly, described " L " template 914 is also made by forging type, does not repeat them here.

In the utility model, the power distribution cabinet hanger 914 as mounting structure coordinates with vertical power distribution cabinet or hanging power distribution cabinet by different angle of assembling, thus meets the installation requirement of these two kinds of power distribution cabinets:

See Figure 18, it is the schematic diagram of the utility model vertical power distribution cabinet.During the assembling of this vertical power distribution cabinet, be fixed on cabinet S by one of them side plate of " L " template 914, another side plate stretches out outside cabinet, so as with wall or, compartment or other construction sidewall fix.The setting height(from bottom) of described " L " template 914 and the upper and lower along concordant of cabinet S, also can adopt other setting height(from bottom) certainly.

See Figure 19, it is the schematic diagram of the hanging power distribution cabinet of the utility model.During this hanging power distribution cabinet assembling, two side plates of " L " template are fixed on the angle of cabinet S, and make the lifting hole(eyelet) 9141 on " L " template 914 expose cabinet S.After, can by power distribution cabinet hanging on wall, compartment or other construction sidewall.Like this, just can coordinate with vertical power distribution cabinet or hanging power distribution cabinet as long as change setting angle, thus meet the installation requirement of these two kinds of form power distribution cabinets, have structure simply, the advantages such as convenient, safe and reliable, versatility is good are installed.

See Figure 20, the utility model electric supply installation block diagram.This power supply establishes device 10 to comprise photovoltaic power supply module 101, mains-supplied module 102, power supply modular converter 103, photovoltaic power supply module 101 and mains-supplied module 102 are connected to power supply modular converter 103 input respectively, the output of power supply modular converter 103 is connected to power distribution cabinet 9: the exportable 314V alternating current of photovoltaic power supply module 101, it and mains-supplied module 102 are connected to together powers modular converter 103 to select different supply power modes, electric power after the conversion of power supply modular converter 103 exports control module to through power distribution cabinet 9, to carry out drive motors 8.

See Figure 21, the theory diagram of the utility model photovoltaic power supply module is shown.This photovoltaic power supply module 101 comprises photovoltaic cell 1011, photovoltaic controller 1012, storage battery 1013, inverter circuit 1014, photovoltaic cell 1011 is preferably film photovoltaic cell, photovoltaic controller 1012 has charging circuit 10121, discharge circuit 10123 and control circuit 10122, charging circuit 10121 is connected between photovoltaic cell 1011 and storage battery 1013, discharge circuit 10123 is connected between storage battery 1013 and inverter circuit 1014, control circuit 10122 connects charging circuit 10121 respectively, discharge circuit 10123 and storage battery 1013, inverter circuit 1014 is connected to power supply modular converter 103.

In figure 21, the core of film photovoltaic cell 1011 photovoltaic power supply modules 101, its effect is that the radianting capacity of the sun is converted to electric energy, or is sent in storage battery and stores, or pushing motor 8 works.The effect of photovoltaic controller 1012 is the operating states controlling whole system, and storage battery is played to the effect of additives for overcharge protection, over.The effect of storage battery 1013 is the electrical power storage sent by photovoltaic cell when there being illumination, and it's time to needs to discharge again.

See Figure 22, the circuit theory diagrams of inverter circuit of the present utility model are shown.This inverter circuit 1014 comprises power tube driving chip, and this power tube driving chip is connected to microcontroller circuit (MCU/DSP), so that the pulse width modulating signal exported according to microcontroller circuit, drives corresponding power tube alternate conduction and shutoff.Concrete, described inverter circuit 1014 comprises six power tube Q1 ~ Q6, and these six power tubes are divided into three groups, and every group power control to cross streams exports.

The concrete connected mode of each power tube is: the source electrode of power tube Q1, Q2, Q3 connects one end of DC power supply jointly, the drain electrode of power tube Q4, Q5, Q6 connects the other end of DC power supply jointly, the connection of the drain electrode of power tube Q1 and the source electrode of power tube Q4 is powered the U phase terminal of modular converter 103, the connection of the drain electrode of power tube Q2 and the source electrode of power tube Q5 is powered the V phase terminal of modular converter 103, and the drain electrode of power tube Q3 is connected the W phase terminal of power supply modular converter 103 with the source electrode of power tube Q6; The grid of power tube Q1, Q2, Q3, Q4, Q5, Q6 connects an output of power tube driving chip respectively, each input of this power tube driving chip respectively by microcontroller circuit output pulse width conditioning signal PWM1, PWM2,

PWM3, PWM4, PWM5, PWM6 Zhong mono-tunnel controls.Corresponding access diode D1 ~ D6 between the source electrode of these six power tube Q1 ~ Q6 and drain electrode.

During start, microprocessor produces corresponding 6 road pulse width modulating signals according to the motor speed of setting, i.e. drive singal PWM1 ~ PWM6; 6 power tube (MOSFET or IGBT) Q1 ~ Q6 of inverter inverter circuit 1014 are driven by power tube driving chip; The alternate conduction of these power tubes and shutoff, produce three-phase modulations waveform, output voltage is adjustable, the three-phase alternating current of changeable frequency, inputs to power supply modular converter 103.

3, electric-control system

See Figure 23, it is the block diagram of the utility model electric-control system.The input termination power distribution cabinet 9 of control module 100, export termination motor 8, this control module 100, when power distribution cabinet 9 output current, can drive the motor 8 as AC load to operate; The first earth element 110 and the second earth element 120 is accessed at the two ends of this control module 100 respectively, lightning current is introduced the earth, improves the fail safe of system thus.

The present embodiment comprises secondary lightning protection circuit, and specifically the first earth element 110 is closed spark gap, and between the input being connected to control module 120 and earth terminal, lightning current of can releasing can reach 20KA; Second earth element 120 is discharge tube, between the output being connected to control module 100 and earth terminal, the fraction thunder-strike current flowing through control module 100 is discharged further, namely a current limliting is remake to the residual voltage entering motor 8, make it lower than specified safe range.This just can make most of thunder-strike current be released by the first earth element 110 of control module 100 input, the second earth element 120 that control module 100 output is arranged then can make the residual voltage entering load less, thus be conducive to preventing load to be struck by lightning, improve its safety in utilization, extend its useful life.

The first above-mentioned earth element 110, second earth element 120 all can select the earth resistance of Zinc-oxide piezoresistor or other type to replace, and has good lightning protection effect equally.When lightning current is larger, Zinc-oxide piezoresistor is breakdown, and lightning current flows into earth terminal through Zinc-oxide piezoresistor rapidly, and the residual voltage entering motor 8 is clamped in preset range.

See Figure 24, the electrical principle block diagram of the utility model control module is shown.In the major loop of this control module 100, three phase mains input line L1, L2, L3 are connected to motor lines U1, V1, W1 of the three phase electric machine of motor 8 through major loop circuit breaker Q F1, A.C. contactor KM; In control loop, the input termination three phase mains input line L2 of control loop circuit breaker Q F2, L3, one of control loop circuit breaker Q F2 exports terminals of termination A.C. contactor KM coil, and another output of control loop circuit breaker Q F2 connects another terminals of A.C. contactor KM coil through inching button SB (1-3).Press inching button SB, A.C. contactor KM coil obtains electric adhesive, and the three-phase main contacts of A.C. contactor KM closes, and motor obtains electric operation, driven equipment work.The time pinning inching button SB is motor crawl duration of runs.Unclamp inching button SB, A.C. contactor KM coil blackout discharges, and the three-phase main contacts of A.C. contactor KM disconnects, and motor dead electricity shuts down, and driven equipment stops.

In order to make lightning current flow through safely in the present embodiment, all connected by shielded type cable between each circuit element, its terminals are screwed, and below further illustrate.

See Figure 25, represent the earthing mode of shielded type cable 130.This shielded type cable 130 is made up of cable core and cable shield, and this cable shield wraps cable core to reduce electromagnetic interference.

Figure 25 illustrates the mode of connection of shielded type cable 130 between power distribution cabinet 9 and control module 100, this shielded type cable 130 passes through the first earth element 110 ground connection near one end cable shield of power distribution cabinet 9, and shielded type cable 130 is near the direct ground connection of other end cable shield of control module 100.

In practical power systems, the length of shielded type cable 130 is generally greater than 20m, and the first earth element 110 therefore can be made to be connected to the position of distance feeder ear (power distribution cabinet) 4m ~ 6m.This first earth element 110 can be earth resistance, and particular type can be (certainly also can be other element) such as Zinc-oxide piezoresistors.The resistance of this earth resistance is equal with the equivalent resistance of the cable shield of shielded type cable 130, also can choose separately according to actual conditions.

Ground connection between motor 8 and control module 100 can refer to aforesaid way, that is: shielded type cable 130 is near one end cable shield of control module 100 by the second earth element 120 ground connection, and shielded type cable 130 is near the direct ground connection of other end cable shield of motor 8.

In this embodiment, between control module 100 and power distribution cabinet 9, the shielded type cable 130 between motor 8 and control module 100 have employed 2 grounding schemes, thus still maintains the good anti-jamming effectiveness of tradition 2 grounding schemes; Because shielded type cable 130 passes through earth element ground connection near one end cable shield of power distribution cabinet 9, be conducive to earth current or interference current limliting, the danger of screen is burnt when thus avoid earth-current or disturb excessive, also can reach electromagnetic compatibility effect preferably simultaneously, and negative antenna effect can not be caused.

See Figure 26, represent the concrete structure of shielded type cable.Be provided with many heart yearns 135 in the external protection 131 of this shielded type cable 130, wherein every root heart yearn is enclosed with inner protective layer 133; Especially, in external protection, 131 layers are provided with cable shield 132, and the inner side of inner protective layer 133 is provided with heart yearn screen 134.

Because the heart yearn of shielded type cable 130 and cable self all arrange screen, the interference in interference between heart yearn and the external world can be suppressed, specifically: the heart yearn of shielded type cable all devises heart yearn screen, the electromagnetic radiation being conducive to suppressing to produce between heart yearn, electrostatic coupling and electromagnetic induction; Cable self arranges cable shield, is conducive to suppressing outside electromagnetic interference; These two aspects factor, eliminates the interference that dynamical system shielded type cable produces preferably, is conducive to the accuracy ensureing data.

Preferably, the two ends ground connection respectively of cable shield 132 and heart yearn screen 134, effectively to reduce interference source.More preferably, be make cable shield 132 and heart yearn screen 134 near one end of power distribution cabinet 9 by the first earth element 110 ground connection, cable shield 132 and or heart yearn screen 134 near the direct ground connection in one end of motor 8.

The dust pelletizing system that the utility model provides and subsystem or parts, can at least improving dust removing effects, optimize supply power mode or ensure equipment stable operation some in improve systematic function, its structure is simple, compact in design, cost is lower, has good market prospects.

Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection range of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (5)

1. a vertical power distribution cabinet, be applicable to the dust pelletizing system comprising cleaner, electric power system and electric-control system, cleaner comprises cyclone dust collector for two-stage dust removal and sack cleaner, on the exhausting duct that blower fan is arranged at sack cleaner or on the air inlet duct of cyclone dust collector, the electric supply installation of electric power system is powered to power distribution cabinet by photovoltaic power supply module or mains-supplied module, the control module of electric-control system drives the motor rotation as AC load when power distribution cabinet output current, it is characterized in that, power distribution cabinet arranges power distribution cabinet hanger in cabinet rear wall corner; Power distribution cabinet hanger comprises one " L " template; " L " template comprises the first side plate and the second side plate; First side plate and the second side plate offer a lifting hole(eyelet) and some installing holes, in order to be installed on power distribution cabinet by securing member by " L " template; One of them side plate of " L " template is fixed on cabinet, and another side plate stretches out outside cabinet, power distribution cabinet and construction sidewall to be fixed.

2. vertical power distribution cabinet as claimed in claim 1, it is characterized in that, power distribution cabinet is separated into independently service entrance switch room, kilowatt-hour meter room and outlet switch room; Service entrance switch room is arranged at the upper space of power distribution cabinet, and kilowatt-hour meter room is arranged at the central space of power distribution cabinet, and outlet switch room is arranged at the lower space of power distribution cabinet; Service entrance switch arranges lead-in circuit breaker in room, is provided with some kilowatt-hour meters in kilowatt-hour meter room, and outlet switch room is provided with earthing bar.

3. vertical power distribution cabinet as claimed in claim 2, it is characterized in that, photovoltaic power supply module comprises photovoltaic cell, photovoltaic controller, storage battery, inverter circuit, photovoltaic controller has charging circuit, discharge circuit and control circuit, charging circuit is connected between photovoltaic cell and storage battery, discharge circuit is connected between storage battery and inverter circuit, and control circuit connects charging circuit, discharge circuit and storage battery respectively, and inverter circuit is connected to power supply modular converter.

4. vertical power distribution cabinet as claimed in claim 3, it is characterized in that, cleaner comprises cyclone dust collector and sack cleaner, cyclone dust collector are communicated with by airduct with sack cleaner, blower fan is arranged on the exhausting duct of sack cleaner, and cyclone dust collector and sack cleaner are connected to dust arrester to collect dust.

5. vertical power distribution cabinet as claimed in claim 4, it is characterized in that, the two ends of control module access the first earth element and the second earth element respectively, wherein the first earth element is connected between the input of control module and earth terminal, and the second earth element is be connected between the output of control module and earth terminal.