CN203056677U - Coal mine fan flame-proof type dual supply vacuum electromagnetic starter - Google Patents
Coal mine fan flame-proof type dual supply vacuum electromagnetic starter Download PDFInfo
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- CN203056677U CN203056677U CN 201220349930 CN201220349930U CN203056677U CN 203056677 U CN203056677 U CN 203056677U CN 201220349930 CN201220349930 CN 201220349930 CN 201220349930 U CN201220349930 U CN 201220349930U CN 203056677 U CN203056677 U CN 203056677U
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Abstract
The utility model relates to a coal mine fan flame-proof type dual supply vacuum electromagnetic starter, comprising a rectangular flame-proof housing installed on a luge-shaped underframe, two front door control plates, two contactor core pulling frames and two isolation commutation switchboards. The housing can be divided into four independent flame-proof portions, i.e., two wiring chambers and two main chambers; the wiring chambers are located above the main chambers and integrate incoming and outgoing line terminals of all major loops and control loops; the main chambers are composed of main chamber housings and front door containing parts; the soft starter also comprises an intelligent type protector which is composed of current and voltage sensors, a main control board, a Chinese display screen, etc.
Description
Technical field
The utility model relates to a kind of vacuum electromagnetic starter, more particularly, relates to a kind of colliery blower fan flame-proof type dual power supply vacuum electromagnetic starter.
Background technology
Under original coal mine two disrotatory axial flow fans are adopted the flame proof starter of four common character of QBZ series, onlinely owe perfect to biconjugate axial flow rotary formula booster its performance that matches, incompatible technical performance requirement to biconjugate axial flow rotary formula booster.Unprotect, fault-free show, floor space is big, cause a large amount of maintenances and maintenance time, have reduced the time of producing coal.
For this reason; the purpose of this utility model is exactly in order to overcome above-mentioned defective; the applicant has invented a kind of specially for the matching used flame-proof mine vacuum electromagnetic starter of colliery blower fan; called after SF series colliery blower fan explosion-proof vacuum electromagnetic starter (hereinafter to be referred as starter), the protector of novel intelligentization has been adopted in this starter design.Be applicable in the mine that contains damp (methane) and coal dust.
Starter of the present utility model has that breaking capacity is strong, the life-span long, safe and reliable, intelligent degree advantages of higher, and explosion-resistant enclosure adopts rectangle, translation is uncapped fast, element board, contactor are loosed core frame, be convenient to produce and maintenance.Adopt advanced SKR-300FJ downhole coal mine blower fan with special intelligent multifunctional comprehensive protector, protector has adopted advanced microprocessor, and high-precision data are handled and advanced protection algorithm, protection precision height, and reaction speed is fast.Can finish earth leakage search/lockout, under-voltage, overvoltage, three-phase imbalance, overload, the phase failure, short circuit, lock between air and electricity, gas electric locking, the main various defencive functions such as standby counter-rotating fan that can automatically switch to the whirlwind level.
This product is modernization, standardization mine ventilation system new equipment, new equipment, and to the ventilation quality of ventilating system under the coal mine, drafting efficiency and ventilation safety play deciding factor, for the safety in production in colliery has promoted a new step.
The utility model content
In order to address the above problem, invented a kind of novel mine explosion-suppression vacuum electromagnetic starter.
The utility model is colliery blower fan explosion-proof vacuum electromagnetic starter, described starter is by the open the door flame-proof type shell of pattern of the quick translation of rectangle on the rectangle sled shape underframe that is installed on the sledge shape underframe, loose core frame and isolating switch plate composition that Qianmen control board and two contactor are formed, described shell can divide two wiring and two four independently explosion-proof part, described wire connection cavity is positioned at the top in main chamber, described two wire connection cavities have been concentrated the turnover line terminals of whole major loops and control loop, described main chamber is made up of main cavity shell and Qianmen containing, inside, described main chamber is equipped with and isolates the reversing switch mounting panel, the contactor frame of loosing core is equipped with mounting panel on the Qianmen.Described starter also comprises protector; described protector is made up of electric current, voltage sensor, master control borad and Chinese display screen three parts; described current sensor is air core current transformer, directly is through on the three-phase bus, just can obtain and once surveys the current signal that electric current is directly proportional.
In sum, the beneficial effect of starter of the present utility model is that breaking capacity is strong, the life-span is long, automatically switch to emergency electric system when fault takes place, the air feed of can accomplishing not have a power failure, advantage such as safe and reliable, explosion-resistant enclosure adopts rectangle, rapid translation-type to uncap, advanced manufacturability is arranged, be convenient to produce and maintenance.Adopt advanced downhole intelligent multifunctional comprehensive protector, protector has adopted advanced microprocessor, and high-precision data are handled and advanced protection algorithm, protection precision height, and reaction speed is fast.Can finish multinomial defencive functions such as earth leakage search/lockout, under-voltage, overvoltage, three-phase imbalance, overload, short circuit, blower fan locking, gas shutting.
Be described in more detail the utility model below by example.
Description of drawings
Fig. 1 is the schematic diagram of coal mine atmosphere compressor with the Flameproof intrinsically safe vacuum electromagnetic starter;
Fig. 2 is the end view of coal mine atmosphere compressor with the Flameproof intrinsically safe vacuum electromagnetic starter.
Fig. 3 is the electrical schematic diagram of coal mine atmosphere compressor with the Flameproof intrinsically safe vacuum electromagnetic starter.
Embodiment
The utility model is further specified with enforcement below in conjunction with accompanying drawing 1, Fig. 2 and Fig. 3.
As shown in Figure 1, colliery of the present utility model blower fan with the explosion-proof vacuum electromagnetic starter by be installed in rectangle flameproof enclosure 5, the assembling 4 of Qianmen control board and the contactor on the rectangle sled frame, the frame 6 of loosing core is formed.Shell 5 can be divided into wiring 1 and main chamber 2 totally four explosion-proof parts independently, and external form is seen Fig. 1.
Wire connection cavity 1 is arranged on the top in main chamber 2, it has concentrated the turnover line terminals of whole major loops and the control loop of two-way power supply, in 18 main terminals are arranged, wherein 6 is the electric power incoming line binding post, other 12 are the load binding post, also have 4 nine core binding posts, the electric locking that is used for giving a dinner for a visitor from afar, gas electric locking and communication state signal in addition.Main chamber 2 is formed by containing before 2 main chambeies and 2.The inner critical piece that starter is installed, namely loose core frame, 2 of 2 isolation reversing switch plates, 2 contactors is contained in element board on the door, isolates the reversing switch plates and be contained on the rear wall in main chamber 2, but the reversing switch handle and about associated apparatus at the outer left and right sides in main chamber 2.
Starter of the present utility model also comprises the protector (not shown), and it is positioned on the door closure in main chamber 2, and this protector is made up of electric current, voltage sensor, master control borad and Chinese display screen.Current sensor is air core current transformer, directly is through on the three-phase bus, just can obtain the current signal that is directly proportional with primary side current.
Protector carries out quick sampling and finishes calculation process analog quantity and the switching value of gathering, and can show three-phase current and magnitude of voltage, fan operation situation in real time in display screen.Protector can determine tripping operation according to nature of trouble when breaking down, and the Chinese display fault message, and related parameter is arranged the memory fault so that inquiry, and it can also carry out communication by communication interface and safety monitoring system.
The logic function of starter is as follows:
Four kinds of mode of operations that this product protection device is prefabricated should be able to satisfy most of users' requirement.The groundwork principle is as follows:
Every protector can be with two motors (preceding blower fan and rear fan) of a counter-rotating fan, and two protectors are formed the biconjugate cyclone cluster, and are standby each other.The preceding blower fan of necessary manual starting main frame or subsidiary engine after powering on, the rear fan starting is finished by protector.Wherein after fault, platform does not need manual intervention in addition, can realize automatically switching.Two protections must be set to-" main frame "-" subsidiary engine ".No matter which platform switch is in running order, and platform all detects the other side's state in real time in addition.
The main frame equity:
" main frame " and " subsidiary engine " is the relation of equity, and breaking down up to this machine just to switch to other platform.
Main frame is preferential:
Work is based on " main frame "." main frame " is in running order always, just switches to up to breaking down by " subsidiary engine ".In case " main frame " recovers normal, " subsidiary engine " also will switch back " main frame " work.
Major-minor moving in turn:
" main frame " and " subsidiary engine " is peer-to-peer, and under the normal condition, two equipment are according to the time of setting operation in turn, and the switching between the two-shipper is finished automatically.
Double local leaf's pattern:
" this machine " double local leaf pattern, " main frame " and " subsidiary engine " is as broad as long.The biconjugate cyclone cluster can not automatically switch.Be set to this machine of this pattern, after the preceding machine starting, back machine can not followed starting.This machine fault can not switch to other platform, and platform breaks down and can not switch to this machine in addition, and also, under this pattern, the magnetic starter switch that biconjugate cyclone cluster switch can be used as two platform independent uses.
When using double local leaf's pattern, must press inspection button (2T).
The crawl starting:
It is bigger that this function is used for power of fan, if disposable starting may cause blowing and split air duct, requires the blower fan occasion of normal operation again after the start-stop several times repeatedly, number of starts, and it is all adjustable rise/to stop the interval.Only need manual starting once during the crawl starting, other work are fully by software control, and the user need not to change periphery circuit.If do not need this function, then " crawl " function is invalid to select " normal starting ".
The crawl start-up function does not influence the action of the back machine of this machine, and back chance is according to " starting of front and back blower fan at interval " time action of setting.
The operation principle of starter is as follows:
When 1, switching use as two opposite-rotary axial flow type booster interlockings, realize that two blower fan duplicate supplys automatically switch.Be special main counter rotating axial fan, because last level power supply has a power failure or fault when out of service, standby counter rotating axial fan can open automatically.Standby disrotatory axial flow fan puts into operation, realizes that the tunnel constantly ventilates.After specializing in main disrotatory axial flow fan higher level incoming call or fault eliminating, automatically switch to main disrotatory axial flow fan ventilation operation.Only when main disrotatory axial flow fan moves ventilation state, could realize to developing, driving, coal-face power supply.Please note when standby opposite-rotary axial flow type booster ventilates operation, forbid to developing, driving, coal-face power supply! In other words, standby opposite-rotary axial flow type booster to the beginning is in hot stand-by duty extremely eventually.Open the opposite-rotary axial flow type booster first, only need click main opposite-rotary axial flow type booster and get final product by SB1.
2, the starting operation of counter rotating axial fan, 0～60 second starting operation of secondary time-delay subsequently ventilates, and delay time can be regulated in 0～60 second.When the ventilation out of service of opposite-rotary axial flow type booster one-level, the automatic ventilation out of service of secondary.
3, operation principle (as shown in Figure 3)
A) the major loop earth leakage search/lockout detects:
Beat to the position of " closing " isolating reversing switch GH, control transformer T powers on, secondary output AC36V control power supply.So; the PIR-300FJ comprehensive protection device powers on; the earth leakage search/lockout testing circuit is devoted oneself to work; earth leakage search/lockout detects input terminal 15# line through KM1-3, KT1-1(16#, KM2-3, KT2-1); the motor line related is carried out the earth leakage search/lockout insulation resistance to be detected; work as motor; terminal box and line related insulation resistance are greater than the earth leakage search/lockout value (during 1140V; 40K Ω, during 660V, 22K Ω) time; SKR-300FJ combines the J execution relay of protecting and is in attracting state; grant the starting of one-level blower fan, simultaneously, accurate fair secondary blower fan starting operation.Otherwise when supply line's system insulating resistance during less than the earth leakage search/lockout setting value, it is release condition that the SKR-300FJ comprehensive protection device is carried out relay, and so, 1BH(2BH) terminal is opened, the starting of refusal opposite-rotary axial flow type booster.At this moment, need to check supply line, state of insulations such as fan electromotor and terminal box, after fault is got rid of, can starting operation.
B) normal starting
Press the starting button SB1 of main opposite-rotary axial flow type booster, auxiliary relay K3 coil powers on, its normal battle the K3-1 closure, K1 coil power on its normal battle of K1-1, K1-2 closure, KT1, KM1 coil power on, KT2, KM2 coil power on when slow, and KM1-2, KM2-2 its normal switch closure and self-insurance, simultaneously, KM1-3, KT1-1, its normally closed point of KM2-3, KT2-1 disconnect, preceding blower fan, the starting process of rear fan is finished.
C) orderly closedown is pressed the stop button SB2 of main opposite-rotary axial flow type booster, auxiliary relay K3 coil losing electricity, and K3-1 disconnects, the K1 coil losing electricity, K1-1, K1-2 disconnect KT1, KM1, KT2, KM2 coil losing electricity.Handle places isolating switch handle de-energized again, finishes the blower fan stopped process.
A) error protection
1. after the starter starting, SKR-300FJ comprehensive protection device begins according to setting current control motor and circuit to be transshipped; the phase failure and short-circuit detecting; when overload occurring, when the phase failure and short trouble, SKR-300FJ comprehensive protection device is pressed the regulation guard time action of table 1, table 2.Blower fan protection fail-open before terminal 37#, the 38#, at this moment, vacuum contactor KM1, KM2 coil losing electricity, starter quits work, and at this moment should check its reason, fixes a breakdown, and can reset.
2. when short trouble occurring, must promptly check the short circuit reason, never allow to send electricity again, in order to avoid fault coverage enlarges or cause the colliery down-hole accident.After fixing a breakdown, send electricity to starter again again, starter plays the effect that resets like this.
Claims (1)
1. colliery blower fan flame-proof type dual power supply vacuum electromagnetic starter; described starter is by the rectangle flameproof enclosure that is installed on the sledge shape underframe; loose core frame and two flame proof reversing switch plates of two Qianmen control boards and two contactors are formed; described rectangle flameproof enclosure can be divided into two wire connection cavities and two main chambeies; totally four explosion-proof parts independently; two described wire connection cavities are positioned at the top in two described main chambeies; two described wire connection cavities have been concentrated the turnover line terminals of whole major loops and control loop; described main chamber is made up of main cavity shell and Qianmen containing; described starter also comprises intelligent protector, and described intelligent protector is by electric current; voltage; transducer; master control borad and Chinese display screen are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220349930 CN203056677U (en) | 2012-07-19 | 2012-07-19 | Coal mine fan flame-proof type dual supply vacuum electromagnetic starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220349930 CN203056677U (en) | 2012-07-19 | 2012-07-19 | Coal mine fan flame-proof type dual supply vacuum electromagnetic starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056677U true CN203056677U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220349930 Expired - Fee Related CN203056677U (en) | 2012-07-19 | 2012-07-19 | Coal mine fan flame-proof type dual supply vacuum electromagnetic starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203056677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846723A (en) * | 2016-04-29 | 2016-08-10 | 山西际安电气有限公司 | Mine explosive-proof intrinsically safe dual-circuit vacuum electromagnetic starter |
-
2012
- 2012-07-19 CN CN 201220349930 patent/CN203056677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846723A (en) * | 2016-04-29 | 2016-08-10 | 山西际安电气有限公司 | Mine explosive-proof intrinsically safe dual-circuit vacuum electromagnetic starter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20170719 |