CN204538945U - Explosion-proof frequency converter is pressed in a kind of mine high-power - Google Patents
Explosion-proof frequency converter is pressed in a kind of mine high-power Download PDFInfo
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- CN204538945U CN204538945U CN201520273220.1U CN201520273220U CN204538945U CN 204538945 U CN204538945 U CN 204538945U CN 201520273220 U CN201520273220 U CN 201520273220U CN 204538945 U CN204538945 U CN 204538945U
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Abstract
Press explosion-proof frequency converter in a kind of mine high-power of the utility model, belong to the technical field of mining anti-explosion frequency converter, the technical problem of solution is: provide a kind of efficiency higher, electrical network impacted in less mine high-power and presses explosion-proof frequency converter; The technical scheme adopted is: press explosion-proof frequency converter in a kind of mine high-power, comprise: explosion-resistant enclosure, described explosion-resistant enclosure is provided with power input port, output port of power source and control command input port, is provided with main circuit and control module in described explosion-resistant enclosure; Described main circuit comprises rectifier, charge-discharge protection circuit, IGCT inverter and filter circuit, and described control module comprises voltage and current detection circuit, drive circuit and PLC.
Description
Technical field
Press explosion-proof frequency converter in a kind of mine high-power of the utility model, belong to the technical field of mining anti-explosion frequency converter.
Background technology
At present, transporting equipment mainly drag conveyor and the belt conveyer of China down-hole, in use, the impact of device start is the main cause it being caused to fault, for solving down-hole scraper plate and belt conveyer across-the-line starting is impacted greatly, fluid coupling efficiency is low and safeguard the problems such as loaded down with trivial details, develop and be used for the middle pressure explosion-proof frequency converter of underground transport equipment, impact slowing down to start, reduce net capacity requirement, reach energy-saving effect and have very important significance.
And, for pressing the research and development of explosion-proof frequency converter, application and popularization in underground transport equipment, effectively can reduce energy resource consumption, reducing coal production cost, enhancing our international competitiveness, have broad application prospects in coal industry; Meanwhile, the popularization of the alternating frequency conversion technique lifting to the entirety progress of Chinese electromechanics trade, electromechanics trade status is significant, meets the needs of national industrial policies adjustment and industry development progress.
Utility model content
The utility model overcomes the deficiency that prior art exists, and technical problem to be solved is: provide a kind of efficiency higher, electrical network impacted in less mine high-power and presses explosion-proof frequency converter.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: press explosion-proof frequency converter in a kind of mine high-power, comprise: explosion-resistant enclosure, described explosion-resistant enclosure is provided with power input port, output port of power source and control command input port, is provided with main circuit and control module in described explosion-resistant enclosure, described main circuit comprises rectifier, charge-discharge protection circuit, IGCT inverter and filter circuit, described control module comprises voltage and current detection circuit, drive circuit and PLC, the input of described rectifier is connected with power input port, the output of rectifier is connected with the input of charge-discharge protection circuit, the output of charge-discharge protection circuit is connected with the input of IGCT inverter, the output of IGCT inverter is connected with the input of filter circuit, the output of filter circuit is connected with output port of power source, the input of described voltage and current detection circuit is connected with control command input port, the output of voltage and current detection circuit is connected with the first control signal input of drive circuit, second control signal input of drive circuit is connected with the first control end of PLC, second control end of PLC is connected with main circuit, first control end of drive circuit is connected with main circuit.
Also water cooling system is provided with in described explosion-resistant enclosure, described water cooling system is all connected with main circuit with control module, explosion-proof frequency converter is pressed in described a kind of mine high-power, described power input port is two, described output port of power source is multiple, described charge-discharge protection circuit comprises electric capacity C1 and electric capacity C2, and described electric capacity C1 and electric capacity C2 is attempted by between rectifier and IGCT inverter after connecting, and a control end of IGCT inverter is also connected with the line between electric capacity C1 and electric capacity C2; Described filter circuit comprises resistance R1 and electric capacity C3, one end of described resistance R1 is connected with the output of IGCT inverter, be connected with output port of power source behind one end of the other end shunt-wound capacitance C3 of resistance R1, the other end ground connection of electric capacity C3, described power input port place and output port of power source place all have Quick connector plug.
The utility model compared with prior art has following beneficial effect:
1, press explosion-proof frequency converter in a kind of mine high-power of the utility model, comprise explosion-resistant enclosure, explosion-resistant enclosure is provided with power input port, output port of power source and control command input port, is provided with main circuit and control module in explosion-resistant enclosure, main circuit comprises rectifier, charge-discharge protection circuit, IGCT inverter and filter circuit, control module comprises voltage and current detection circuit, drive circuit and PLC, the input of rectifier is connected with power input port, the output of rectifier is connected with the input of charge-discharge protection circuit, the output of charge-discharge protection circuit is connected with the input of IGCT inverter, the output of IGCT inverter is connected with the input of filter circuit, the output of filter circuit is connected with output port of power source, the input of voltage and current detection circuit is connected with control command input port, the output of voltage and current detection circuit is connected with the first control signal input of drive circuit, second control signal input of drive circuit is connected with the first control end of PLC, second control end of PLC is connected with main circuit, first control end of drive circuit is connected with main circuit, in the utility model, the inverter of frequency converter have employed IGCT-integrated gate commutated thyristor, because IGCT has higher switching frequency, less energy loss, the peak value exported is also smoother, than the shutoff better effects if of common fuse, therefore make the efficiency of whole frequency converter higher, less to electrical network impact.
2, also comprise water cooling system in the utility model, water cooling system is all connected with main circuit with control module, when frequency converter starts, water cooling system also starts thereupon, each several part circuit all has water circulation, effectively prevent the generation of condensed water, has really accomplished that water power is not separated.
3, in the utility model, explosion-resistant enclosure is provided with power input port, output port of power source and control command input port; power input port is two; output port of power source is multiple; power input port place and output port of power source place all have Quick connector plug; existing frequency converter is two enter one and go out; this frequency converter two enters to have more, and make a playscript with stage directions frequency converter can drive two or multiple electric motors, and each motor can realize protection perfect separately respectively simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail;
Fig. 1 is structural representation of the present utility model;
Fig. 2 is electrical block diagram of the present utility model;
In figure: 1 is explosion-resistant enclosure, 2 is power input port, and 3 is output port of power source; 4 is control command input port, and 5 is main circuit, and 6 is control module; 7 is rectifier; 8 is charge-discharge protection circuit, and 9 is IGCT inverter, and 10 is filter circuit; 11 is voltage and current detection circuit; 12 is drive circuit, and 13 is PLC, and 14 is water cooling system.
Embodiment
As shown in Figure 1 and Figure 2, explosion-proof frequency converter is pressed in a kind of mine high-power, comprise explosion-resistant enclosure 1, described explosion-resistant enclosure 1 is provided with power input port 2, output port of power source 3 and control command input port 4, is provided with main circuit 5 and control module 6 in described explosion-resistant enclosure 1; Described main circuit 5 comprises rectifier 7, charge-discharge protection circuit 8, IGCT inverter 9 and filter circuit 10, described control module 6 comprises voltage and current detection circuit 11, drive circuit 12 and PLC 13, the input of described rectifier 7 is connected with power input port 2, the output of rectifier 7 is connected with the input of charge-discharge protection circuit 8, the input voltage of rectifier 7 is 1903V, when frequency converter powers on, rectifier 7 is each 2600VDC of upper and lower half-bridge to its rectification, altogether 5200VDC; The output of charge-discharge protection circuit 8 is connected with the input of IGCT inverter 9, the output of IGCT inverter 9 is connected with the input of filter circuit 10, the utility model adopts IGCT to replace fuse as the protection of main circuit of frequency converter, inside is designed without fuse, IGCT break-time is 25 μ s, faster than traditional fuse 1000 times, substantially increase turn-off speed; The output of filter circuit 10 is connected with output port of power source 3, the input of described voltage and current detection circuit 11 is connected with control command input port 4, the output of voltage and current detection circuit 11 is connected with the first control signal input of drive circuit 12, second control signal input of drive circuit 12 is connected with the first control end of PLC 13, second control end of PLC 13 is connected with main circuit 5, the various controlling functions of this frequency conversion are programmed with PLC-300, with Fiber connection; Frequency converter explosion-proof casing is designed to largest domestic, and various cable incoming-outgoing connector all uses Quick connector plug, and increase the security performance of explosion-proof frequency converter, the first control end of drive circuit 12 is connected with main circuit 5.
Water cooling system 14 is also provided with in described explosion-resistant enclosure 1, described water cooling system 14 is all connected with main circuit 5 with control module 6, described power input port 2 is two, primary voltage is 1903V, described output port of power source 3 is multiple, line voltage is 3300V, described charge-discharge protection circuit 8 comprises electric capacity C1 and electric capacity C2, described electric capacity C1 and electric capacity C2 is attempted by between rectifier 7 and IGCT inverter 9 after connecting, a control end of IGCT inverter 9 is also connected with the line between electric capacity C1 and electric capacity C2, described filter circuit 10 comprises resistance R1 and electric capacity C3, one end of described resistance R1 is connected with the output of IGCT inverter 9, be connected with output port of power source 3 behind one end of the other end shunt-wound capacitance C3 of resistance R1, the other end ground connection of electric capacity C3, described power input port 2 place and output port of power source 3 place all have Quick connector plug.
Explosion-proof frequency converter is pressed to integrate explosion-proof in a kind of mine high-power of the utility model, efficiently, practicality is extremely strong, there is substantive distinguishing features and progress, by reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (6)
1. press explosion-proof frequency converter in a mine high-power, comprise explosion-resistant enclosure (1), it is characterized in that: described explosion-resistant enclosure (1) is provided with power input port (2), output port of power source (3) and control command input port (4), in described explosion-resistant enclosure (1), be provided with main circuit (5) and control module (6), described main circuit (5) comprises rectifier (7), charge-discharge protection circuit (8), IGCT inverter (9) and filter circuit (10), described control module (6) comprises voltage and current detection circuit (11), drive circuit (12) and PLC (13), the input of described rectifier (7) is connected with power input port (2), the output of rectifier (7) is connected with the input of charge-discharge protection circuit (8), the output of charge-discharge protection circuit (8) is connected with the input of IGCT inverter (9), the output of IGCT inverter (9) is connected with the input of filter circuit (10), the output of filter circuit (10) is connected with output port of power source (3), the input of described voltage and current detection circuit (11) is connected with control command input port (4), the output of voltage and current detection circuit (11) is connected with the first control signal input of drive circuit (12), second control signal input of drive circuit (12) is connected with the first control end of PLC (13), second control end of PLC (13) is connected with main circuit (5), first control end of drive circuit (12) is connected with main circuit (5).
2. press explosion-proof frequency converter in a kind of mine high-power according to claim 1, it is characterized in that: be also provided with water cooling system (14) in described explosion-resistant enclosure (1), described water cooling system (14) is all connected with main circuit (5) with control module (6).
3. press explosion-proof frequency converter in a kind of mine high-power according to claim 1, it is characterized in that: described power input port (2) is two, described output port of power source (3) is for multiple.
4. press explosion-proof frequency converter in a kind of mine high-power according to claim 1; it is characterized in that: described charge-discharge protection circuit (8) comprises electric capacity C1 and electric capacity C2; described electric capacity C1 and electric capacity C2 is attempted by between rectifier (7) and IGCT inverter (9) after connecting, and a control end of IGCT inverter (9) is also connected with the line between electric capacity C1 and electric capacity C2.
5. press explosion-proof frequency converter in a kind of mine high-power according to claim 1, it is characterized in that: described filter circuit (10) comprises resistance R1 and electric capacity C3, one end of described resistance R1 is connected with the output of IGCT inverter (9), be connected with output port of power source (3) behind one end of the other end shunt-wound capacitance C3 of resistance R1, the other end ground connection of electric capacity C3.
6. press explosion-proof frequency converter in a kind of mine high-power according to claim 1, it is characterized in that: described power input port (2) place and output port of power source (3) place all have Quick connector plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520273220.1U CN204538945U (en) | 2015-04-30 | 2015-04-30 | Explosion-proof frequency converter is pressed in a kind of mine high-power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520273220.1U CN204538945U (en) | 2015-04-30 | 2015-04-30 | Explosion-proof frequency converter is pressed in a kind of mine high-power |
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| Publication Number | Publication Date |
|---|---|
| CN204538945U true CN204538945U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520273220.1U Expired - Fee Related CN204538945U (en) | 2015-04-30 | 2015-04-30 | Explosion-proof frequency converter is pressed in a kind of mine high-power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795971A (en) * | 2015-04-30 | 2015-07-22 | 山西泓诚伟业科技有限公司 | Mine high power medium voltage explosion-proof frequency converter |
-
2015
- 2015-04-30 CN CN201520273220.1U patent/CN204538945U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795971A (en) * | 2015-04-30 | 2015-07-22 | 山西泓诚伟业科技有限公司 | Mine high power medium voltage explosion-proof frequency converter |
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| 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: 20150805 Termination date: 20170430 |