CN102570857A - Mining flame-proof type rectifier - Google Patents
Mining flame-proof type rectifier Download PDFInfo
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- CN102570857A CN102570857A CN2012100552099A CN201210055209A CN102570857A CN 102570857 A CN102570857 A CN 102570857A CN 2012100552099 A CN2012100552099 A CN 2012100552099A CN 201210055209 A CN201210055209 A CN 201210055209A CN 102570857 A CN102570857 A CN 102570857A
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Abstract
The invention relates to a mining flame-proof type rectifier used in an underground explosive environment of a coal mine. The mining flame-proof type rectifier comprises an explosion-proof casing and an electrical circuit in the explosion-proof casing; the electrical circuit comprises a three-phase bridge rectifier circuit; rectifying diodes in the three-phase bridge rectifier circuit are in output connection through a common anode rectifying module and a common cathode rectifying module, so that the output polarities of the rectifying modules are different, the connection is simple and fast, the circuit is arranged reasonably, the occupied area of the diodes is reduced, and integrating a silicon rectification circuit in a limited space becomes possible. All the rectifying modules are fixed on a heat tube radiator externally connected with the explosion-proof casing, so that heat can be transmitted out of the explosion-proof casing to be radiated advantageously, and the problem of heat radiation can be solved. The flame-proof type rectifier has the characteristics of good radiating effect, and safety and reliability in use.
Description
Technical field
The present invention relates to a kind of flame-proof mine rectifier that mine (colliery) well shooting property environment uses that is used for.Trade name ZLB-600/600～275 type flame-proof mine rectifiers or ZLB-1000/600～275 type flame-proof mine rectifiers.Can with 1000kVA, 630kVA, 500kVA, the supporting use of 315kVA flame-proof mine rectifier transformer, output dc voltage and direct current after three-phase bridge rectification.Rectifier adopts microcomputer-recognized intelligent control protection, and full Chinese shows, has that under-voltage, overvoltage, short circuit, overload, the phase failure, earth leakage search/lockout, temperature show, defencive function such as cooling automatically.
Background technology
In the prior art, heavy-duty rectifier is imported and is fed out circuit, operation and protective circuit, parameter detecting and display circuit etc. by silicon rectification circuit, electric energy and constitutes, and is cabinet type structure, and volume is bigger, and its function is to convert AC power to DC power supply.Being used for the rectifier under the coal mine at present, mostly is the non-explosion-proof rectifying installation of conventional art, and promptly control system is the switch that the contact is arranged; Control technology belongs to analogue relay control; Protection system is a resistance-capacitance type; Display system is pointer instrument; Switching manipulation is complicated, the contact is arranged, spark is arranged, dangerous; Volume is big, degree of protection is low, do not allow to be installed in the down-hole chamber of gas, dust, can only be installed in the ventilation; Non-explosion-proof, do not meet the explosion-proof coherence request of down-hole electric equipment, management is made troubles and potential safety hazard to downhole safety.
There is following shortcoming in the non-antiknock device of conventional art when underground work: contact switch can produce spark, is that one of quick-fried factor is lost in the down-hole; Resistance-capacitance type protection reliability is low; Low, the difficult observation under the not enough situation of down-hole light of pointer display instrument precision; Many, the complicated operation of switch, it is many to lose quick-fried point; The resolution element structure, volume is big; Degree of protection is low, and service condition is restricted, and potential safety hazard is managed, existed in inconvenience.Therefore, the non-explosion-proof rectifying installation of conventional art can't satisfy the demand of the particular surroundings safety in production under the coal mine, needs the device fabrication of new and high technology content, high-performance, high-protection level and comes into operation.
China's utility model patent specification disclosed a kind of name and has been called " explosion-proof type traction rectifier device " patent documentation, the patent No.: CN200820090186.4, the applying date: 2008.06.11 on June 3rd, 2009.It is to prevent in the coal mine that fuel gas or dust from using rectifier power source equipment because of discharge-induced explosion causes the traction of the person and other device damage; Explosion-proof type traction rectifier device is to be made up of traction rectifier device movement and the cavity with explosion prevention function, and it is that traction rectifier device movement is placed a kind of safe power equipment that constitutes in the explosion-proof cavity.This patent is general place rectifier circuit (explosion-proof cavity is an antiknock device common structure under the coal mine) in the explosion-proof cavity; Do not set forth targetedly and improve; Actual do not have a patentability, just by novel patent not examination procedure just be able to pass through no real protection meaning.In fact, it is the rectification circuit of how in the confined space, arranging that the whole movement of rectifier places the key technology in the explosion-proof casing, how to dispel the heat, and this patent documentation is not concrete sets forth.
Summary of the invention
The objective of the invention is provides a kind of compact conformation, good heat dissipation effect, safe and reliable flame-proof mine rectifier to above-mentioned deficiency.
Technical solution of the present invention is: the flame-proof mine rectifier comprises the electric wiring in explosion-proof casing and the explosion-proof casing, and electric wiring is comprising three-phase bridge rectifier circuit.Rectifier diode adopts anode rectification module and common cathode rectification module output connected mode altogether in the three-phase bridge rectifier circuit; Realize that the rectification module output polarity is different; Connect simple and direct; Trace arrangements is reasonable, has reduced diode and has taken up room, and silicon rectification circuit is integrated in the limited space becomes possibility.All rectification modules are fixed on the heat-pipe radiator that is connected outward with explosion-proof casing, realize that heat spreads out of in explosion-proof casing outside the shell, are beneficial to heat radiation, have solved a heat radiation difficult problem.Described have the anode of two or more diodes to link together in the anode rectification module altogether, has the negative electrode of two or more diodes to link together in the common cathode rectification module.Rectification module two power rectifier silicon chips of employing or a plurality of silicon chip are integrated; Portion adopts the method for conversion silicon chip polarity to manufacture common cathode or anode output connection altogether within it; For being added with output, its output end binding post increases conductive cap simultaneously.
The Qianmen of explosion-proof casing is a triangle, on the ramp type observation window is arranged, it is convenient to observe.Qianmen one side has hinge; Be the bolt through the edge, Qianmen after shutting, if in the housing electric circuit not cut off the power supply and open the Qianmen be breakneck, open the Qianmen in order to prevent at will to back out bolt; Hinged and withheld buckle on the one side at Qianmen; On the explosion-proof casing surface, right side on buckle next door the chain operating grip of mechanical electric is installed, handle is connected with explosion-proof casing internal conversion switch through connecting axle, and the pendulum that screws in the buckle slot is arranged on the connecting axle outside the explosion-proof casing.When guaranteeing that handle is in disconnected position, Men Caineng opens, simultaneously through the outage of control master switch.After opened at the Qianmen, handle promptly was positioned lock calmly, can guarantee with normal mode of operation rectifier is closed a floodgate.
Advantage of the present invention is: 1, through application of heat pipe heat dissipation technology and transposing rectification module output polarity; Solved the heat radiation difficult problem of high-power electric appliance equipment, made this equipment can be designed to the blast resistance construction pattern, this equipment can be used for any place under the coal mine; Solved the colliery problem of the explosion-proof inconsistency of electric equipment since the dawn of human civilization; Filled up a blank of coal mine explosion-proof equipment, convenient and safe management eliminates safe hidden trouble.2, rectifier diode adopts three-phase the anode rectification module and the three-phase common cathode rectification module way of output altogether in the three-phase bridge rectifier circuit; The rectification module output polarity is just having, is having negative, and arranges by same polarity, and the rectification module input terminal is near connection; Realize connecting simple and direct; Trace arrangements is reasonable, has reduced diode and has taken up room, and silicon rectification circuit is integrated in the limited explosion-proof casing space becomes possibility.3, realize that switch is contactless, control intellectuality, structural module, protection system intellectuality, display system digitlization, control operation simplification, degree of protection height, safe and reliable.4, because of adopting the permanent magnetism vacuum circuit-breaker, realize that switch is contactless, avoided contact switch to produce spark and lost quick-fried danger; Because of adopting the microcomputerized control technology, realize that protection control is intelligent, control highly sensitive; Because of adopting digital ammeter and voltmeter, its measuring accuracy is high, is convenient under the coal mine of insufficient light, observe; Because of having adopted modular structure, relatively resolution element makes that equipment performance is more reliable, maintenance is more convenient and dwindled equipment volume.5, be widely used in Coal Production, can produce favorable economic benefit and social benefit.
To combine embodiment that execution mode of the present invention is described in further detail below.
Description of drawings
Fig. 1 is a main TV structure sketch map of the present invention;
Fig. 2 is the cutaway view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the vertical view of Fig. 1;
Fig. 5 is common anode rectification tubular construction sketch map;
Fig. 6 is a common cathode rectifying tube structural representation;
Fig. 7 is the rectification module of the present invention circuit theory diagrams of arranging;
Fig. 8 is a rectification module internal structure sketch map.
Embodiment
Referring to Fig. 1-8, the parts name is called: explosion-proof casing 1, Qianmen 2, observation window 3, microcomputer-recognized intelligent control device 4, input wires chamber 5, output connection chamber 6, heat-pipe radiator 7, base 8, current transformer 9, permanent magnetism vacuum circuit-breaker 10, duck chew formula moving contact 11, transformer 12, side blown type blower fan 13, rectification module 14, module rectification radiator 15, explosion-proof fan 16, offside door 17, handle 18, connecting axle 19, pendulum 20, buckle 21, buckle hinge 22, preceding door hinge 23, offside door 24, fast acting fuse 25, shunt 26, plastic-enclosed housing 27, output increase conductive cap 28, rectifier diode output wiring terminal 29, fill insulating heat-conduction material 30, diode 31, rectification module installation base plate 32, rectification module input terminal 33.
Referring to Fig. 1,2; The flame-proof mine rectifier comprises the electric wiring in the explosion-proof casing (casing) 1 of being with Qianmen 2 and the explosion-proof casing 1, and electric wiring comprises electric energy input and output circuit, control and protective circuit, three-phase bridge rectifier circuit, parameter detecting and display circuit.Rectifier diode adopts the common anode rectification module 14 and common cathode rectification module 14 way of outputs in the three-phase bridge rectifier circuit, and six rectification modules 14 are fixed on the heat-pipe radiator 7 that is connected outward with explosion-proof casing 1.Specifically be that heat-pipe radiator 7 is connected with module rectification radiator 15 (copper coin); Module rectification radiator 15 is fixed on the explosion-proof casing 1 metapore face, and rectification module 14 is fixed on module rectification radiator 15 and is on the face of explosion-proof casing 1 the inside (be module rectification radiator 15 rectification module 14 and heat-pipe radiator 7 at a distance between explosion-proof casing 1 inside and outside).Heat-pipe radiator 7 bottoms are provided with flame proof blower fan 16, cover in the protective cover together with heat-pipe radiator 7 to be connected with explosion-proof casing 1.Rectifier adopts natural heat dissipation to add and forces the air-cooled mixing type of cooling.Establish the two-way temperature sensor in the intelligent comprehensive control protective device of rectifier, wherein any one surpasses setting value, can start forced air cooling.
Referring to Fig. 5,6,7,8, rectification module two power rectifier silicon chips 31 of 14 employings or a plurality of silicon chip 31 are integrated; Portion adopts the method for conversion silicon chip 31 polarity to manufacture common cathode or anode output connection altogether within it; Increase conductive cap (Connection Block sheet) 28 for its output end binding post 29 is added with output simultaneously, enlarged contact area.Among Fig. 7 ,+,-be DC output, A, B, C are the AC inputs.Rectification module 14 output polarities are just having, are having negative, and arrange by same polarity, and the left side is three anode rectification modules 14 altogether among Fig. 7; The anode of two diodes of the inside links together, and the right is three common cathode rectification modules 14, and the negative electrode of two diodes of the inside links together; Realize reverse encapsulation; The alternating current input terminal of opposed polarity rectification module 14 realizes that near connection connection is simple and direct, and trace arrangements is reasonable; Reduced diode and taken up room, silicon rectification circuit is integrated in the limited explosion-proof casing space becomes possibility.
Referring to Fig. 1; The one side at the Qianmen 2 of explosion-proof casing 1 is hinged and withheld buckle 21; The chain operating grip 18 of mechanical electric is installed on right side explosion-proof casing 1 surface on buckle 21 next doors; Handle 18 is connected with explosion-proof casing 1 internal conversion switch through connecting axle 19, and the pendulum 20 that screws in buckle 21 slots is arranged on the connecting axle 19 outside the explosion-proof casing 1.When guaranteeing that handle 18 is in disconnected position, Qianmen 2 just can be opened.After opened at Qianmen 2, handle 18 promptly was positioned lock calmly, can guarantee with normal mode of operation rectifier is closed a floodgate.Qianmen 2 is a triangle, on ramp type observation window 3 is arranged, D.C. voltmeter, DC ammeter etc. are arranged in the observation window 3, Qianmen 2 triangle concave side have microcomputer-recognized intelligent control device 4.Rectifier explosion-proof casing 1 adopts the steel plate welding processing to form.Qianmen 2, offside door 17, offside door 24 are bolted with explosion-proof casing 1 flange.Rectifier Qianmen 2 is provided with digital voltmeter, digital ammeter, Chinese display liquid crystal display screen, button such as also have separating brake, combined floodgate, displacement, confirm, reset.
Referring to Fig. 1,3, left and right side respectively has an offside door 24, offside door 17 on the explosion-proof casing 1.Open offside door 24 and can check the wiring of driver and the wiring of aviation plug, moving contact and fixed contact, shunt and temperature sensor.Open offside door 17 and can check instrument transformer, fuse, control power transformer 12, side blown type blower fan 13, rectifies module 14, piezo-resistance.
Referring to Fig. 4, the electric energy input has input wires chamber 5 with output circuit in explosion-proof casing 1 upper front, and big electric current sleeve pipe and seven core binding posts and four-core binding post are installed in the input wires chamber 5; Explosion-proof casing 1 upper back has output connection chamber, double loop 6, in cable entry and seven cores, four-core binding post are arranged.Two explosion insulation connecting line cavities are arranged at rectifier explosion-proof casing 1 top, and power supply comes from the output of flame proof rectifier transformer to of front in order to exchange input wires chamber 5, and the alternating voltage of input is 480V or 220V.One of the back is direct current output connection chamber 6, and VD is 600V or 275V.Square observation window and startup be installed on the Qianmen 2 of explosion-proof casing 1, stop, reset, control button such as combined floodgate, separating brake, electric leakage.
Referring to Fig. 2; The cable entry in input wires chamber 5 is received duck through being flexible coupling and is chewed formula moving contact 11 in housing; Get into the input of permanent magnetism vacuum circuit-breaker 10; Chew the lower end that formula moving contact 11 is connected to fast acting fuse 25 through vacuum circuit-breaker 10 output ducks; Upper end through fast acting fuse 25 is connected to the input of insulation rectification module 14 through being flexible coupling through current transformer 9 again, is connected to the anode of the cable entry in output connection chamber, double loop 6 through direct current shunt 26 by the output plus terminal of rectifier.
The A of major loop, B, 480 volts of supply voltages of C three-phase, (input of DLQ1～DLQ3) is connected to the R of fast acting fuse 25 through the output of permanent magnetism vacuum circuit-breaker 10 to be connected to permanent magnetism vacuum circuit-breaker 10 through input wires chamber 5
1, R
2, R
3, pass through the LH of current transformer 9 again
1-LH
3Be connected to the input of insulation rectification module 14, the positive and negative power supply in 6 output double loops through the output connection chamber.480 volts of input voltages of the control transformer B2 of control loop, 36 volts and 100 volts of secondary outputs, 36 volts of control power supplys, 100 volts of power switch as permanent magnetism vacuum circuit-breaker 10 as Integrated Protection System.Cross-over connection and the digital voltmeter and the digital ammeter that are serially connected in major loop show the rated direct voltage and the rated direct current of output.
The rectifier electric wiring mainly is made up of three parts such as main circuit, control circuit, protective circuits.Main circuit is the A through 1000A permanent magnetism vacuum circuit-breaker 10, B, and the connection of C three-phase vacuum tube and disjunction are accomplished, and mains side is connected with the conducting copper of load side by plug-in type.Control circuit is by unit switch GK; Elements such as often the opening of permanent magnetism vacuum circuit-breaker 10, normally closed auxiliary contact are formed, and when fault such as overload, short circuit, under-voltage, electric leakage occurring when network, control circuit can send actuating signal; Major loop is moved in required time, through liquid crystal display screen display action state.The power transformer of control loop becomes secondary 220V with 480V or 220V voltage, 100V, and 36V is respectively as the power supply of closing coil, digital voltmeter, digital ammeter and integrated control protector.
Electric parameter (is seen table 1; Table 2):
Table 1 flame-proof mine rectifier technical parameter
Table 2 flame-proof mine rectifier technical parameter
| Rated operational voltage (Ui) | Power frequency withstand test magnitude of voltage (AC value V) |
| Ui≤60 | 1000 |
| 60＜Ui≤300 | 2000 |
| 300＜Ui≤660 | 2500 |
ZLB-600/600～275 types, complete machine quality 1628kg; Overall dimension 2470 * 920 * 1200; ZLB-1000/600～275 types, complete machine quality 1768kg; Overall dimension 2470 * 920 * 1350.
Claims (10)
1. flame-proof mine rectifier; Comprise the electric wiring in explosion-proof casing (1) and the explosion-proof casing (1); Electric wiring is comprising three-phase bridge rectifier circuit; It is characterized in that rectifier diode adopts common anode rectification module (14) and common cathode rectification module (14) output connected mode in the three-phase bridge rectifier circuit, rectification module (14) is fixed on the heat-pipe radiator (7) that is connected outward with explosion-proof casing (1); Described have the anode of two or more diodes to link together in the anode rectification module (14) altogether, has the negative electrode of two or more diodes to link together in the common cathode rectification module (14).
2. according to the described flame-proof mine rectifier of claim 1, it is characterized in that rectification module (14) employing two power rectifier silicon chips (31) or a plurality of silicon chip (31) are integrated; Portion adopts the method for conversion silicon chip (31) polarity to manufacture common cathode or anode output connection altogether within it; For being added with output, its output end binding post (29) increases conductive cap (28) simultaneously.
3. according to the described flame-proof mine rectifier of claim 1, it is characterized in that heat-pipe radiator (7) bottom is provided with explosion-proof fan (16).
4. according to the described flame-proof mine rectifier of claim 1, it is characterized in that Qianmen (2) is arranged on the explosion-proof casing (1), left and right side respectively has an offside door (24) and offside door (17).
5. according to the described flame-proof mine rectifier of claim 4, it is characterized in that Qianmen (2) is triangle, on ramp type observation window (3) is arranged.
6. according to the described flame-proof mine rectifier of claim 1; It is characterized in that Qianmen (2) is arranged on the explosion-proof casing (1); The one side at Qianmen (2) is hinged and withheld buckle (21); On the explosion-proof casing surface, right side on buckle (21) next door the chain operating grip of mechanical electric (18) is installed, handle (18) is connected with explosion-proof casing (1) internal conversion switch through connecting axle (19), and the pendulum (20) that screws in the buckle slot is arranged on the connecting axle (19) outside the explosion-proof casing (1).
7. according to the described flame-proof mine rectifier of claim 1; It is characterized in that the electric energy input has input wires chamber (5) with output circuit in explosion-proof casing (1) upper front, is equipped with big electric current sleeve pipe and seven core binding posts and four-core binding post in input wires chamber (5); Explosion-proof casing (1) upper back has output connection chamber, double loop (6), in cable entry and seven cores, four-core binding post are arranged.
8. according to the described flame-proof mine rectifier of claim 7; The cable entry that it is characterized in that input wires chamber (5) is received duck through being flexible coupling and is chewed formula moving contact (11) in explosion-proof casing (1); Get into the input of permanent magnetism vacuum circuit-breaker (10); Chew the lower end that formula moving contact (11) is connected to fast acting fuse (25) through permanent magnetism vacuum circuit-breaker (10) output duck; The upper end of passing through fast acting fuse (25) again is connected to the input of insulation rectification module (14) through being flexible coupling through current transformer (9), be connected to the anode of the cable entry in output connection chamber, double loop (6) through direct current shunt (26) by the output plus terminal of rectifier.
9. according to the described flame-proof mine rectifier of claim 1; The 480 volts of supply voltages of A, B, C three-phase that it is characterized in that major loop; Be connected to the input of permanent magnetism vacuum circuit-breaker (10) through the input wires chamber; Output through permanent magnetism vacuum circuit-breaker (10) is connected to fast acting fuse (25), passes through the input that current transformer (9) is connected to insulation rectification module (14) again, the positive and negative power supply through output connection chamber (6) output double loop.
10. according to the described flame-proof mine rectifier of claim 1; 480 volts of (12) input voltages of control transformer that it is characterized in that control loop; 36 volts and 100 volts of secondary outputs; 36 volts of control power supplys as Integrated Protection System, 100 volts of power switch as permanent magnetism vacuum circuit-breaker (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100552099A CN102570857A (en) | 2012-03-05 | 2012-03-05 | Mining flame-proof type rectifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100552099A CN102570857A (en) | 2012-03-05 | 2012-03-05 | Mining flame-proof type rectifier |
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| CN102570857A true CN102570857A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100552099A Pending CN102570857A (en) | 2012-03-05 | 2012-03-05 | Mining flame-proof type rectifier |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078521A (en) * | 2013-01-12 | 2013-05-01 | 华南理工大学 | Air-cooled high-power high-frequency switching power supply transformation rectification device |
| CN103414319A (en) * | 2013-08-30 | 2013-11-27 | 电光防爆科技（上海）有限公司 | Mining explosive-proof and intrinsically-safe alternating-current converter |
| CN104852591A (en) * | 2015-06-04 | 2015-08-19 | 国家电网公司 | High-voltage high-power converter device |
| US10332818B2 (en) | 2017-01-26 | 2019-06-25 | At&S Austria Technologie & Systemtechnik Aktiengesellschaft | Efficient heat removal from component carrier with embedded diode |
| CN110379668A (en) * | 2019-06-25 | 2019-10-25 | 南安市星盛工业设计有限公司 | A kind of more plate high thermal conductivity type high-pressure vacuum breakers |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205236U (en) * | 1985-12-09 | 1988-02-10 | 通化矿务局科研所 | Detonation-partitioning high speed charger |
| CN202475286U (en) * | 2012-03-05 | 2012-10-03 | 张采兴 | Explosion-proof mining rectifier |
-
2012
- 2012-03-05 CN CN2012100552099A patent/CN102570857A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205236U (en) * | 1985-12-09 | 1988-02-10 | 通化矿务局科研所 | Detonation-partitioning high speed charger |
| CN202475286U (en) * | 2012-03-05 | 2012-10-03 | 张采兴 | Explosion-proof mining rectifier |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078521A (en) * | 2013-01-12 | 2013-05-01 | 华南理工大学 | Air-cooled high-power high-frequency switching power supply transformation rectification device |
| CN103414319A (en) * | 2013-08-30 | 2013-11-27 | 电光防爆科技（上海）有限公司 | Mining explosive-proof and intrinsically-safe alternating-current converter |
| CN104852591A (en) * | 2015-06-04 | 2015-08-19 | 国家电网公司 | High-voltage high-power converter device |
| CN104852591B (en) * | 2015-06-04 | 2018-04-27 | 国家电网公司 | A kind of high-power current converter |
| US10332818B2 (en) | 2017-01-26 | 2019-06-25 | At&S Austria Technologie & Systemtechnik Aktiengesellschaft | Efficient heat removal from component carrier with embedded diode |
| CN110379668A (en) * | 2019-06-25 | 2019-10-25 | 南安市星盛工业设计有限公司 | A kind of more plate high thermal conductivity type high-pressure vacuum breakers |
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Application publication date: 20120711 |