CN209545409U - Water-cooling type 6KV mining high-voltage explosion-proof frequency converter - Google Patents
Water-cooling type 6KV mining high-voltage explosion-proof frequency converter Download PDFInfo
- Publication number
- CN209545409U CN209545409U CN201822023807.3U CN201822023807U CN209545409U CN 209545409 U CN209545409 U CN 209545409U CN 201822023807 U CN201822023807 U CN 201822023807U CN 209545409 U CN209545409 U CN 209545409U
- Authority
- CN
- China
- Prior art keywords
- water
- cooling
- explosion
- chamber
- power cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of water-cooling type 6KV mining high-voltage explosion-proof frequency converters, it is characterized by comprising explosion-proof casings and transducer body, transducer body is mounted in explosion-proof casing, being arranged on explosion-proof casing also has 6KV transformer chamber, power cell chamber and control chamber, 6KV transformer chamber is located at one end of explosion-proof casing, power cell chamber, control chamber are located at the other end of explosion-proof casing, and power cell chamber is located between 6KV transformer chamber, control chamber.The utility model has the following beneficial effects: 1, using integrated structure design, 6KV transformer chamber, power cell chamber, control chamber are focused in an explosion-proof casing, the connecting cable solved when high-voltage explosion-proof frequency converter divides chamber to design between cavity is too long, the problem of complex structural designs, reduce cable it is excessive caused by electromagnetic interference；Facilitate equipment in underground transportation, installation；2, water cooling phase-shifting transformer and power cell are all made of water-cooling, improve high-voltage explosion-proof frequency converter heat dissipation performance.
Description
Technical field
The utility model relates to a kind of water-cooling type 6KV mining high-voltage explosion-proof frequency converters, belong to converter technology field.
Background technique
Underground coal mine power supply voltage level is divided into 10kV, 6kV, 3.3kV, 1140V, 660V, 127V.Underground uses at present
Frequency converter is largely 1140V and 660V, part 3300V voltage class.At home, 6KV and the above high-voltage explosion-proof become
Frequency device is not also in down-hole application.Ground high-voltage frequency converter is widely used, and technology is also very mature, but without explosion-proof energy
Power cannot be applied in underground coal mine.
Ground high-voltage frequency converter installation space is big, and arrangement space is sufficient, can meet cooling requirements using air-cooled structure.It is high
Press explosion-proof frequency converter because of particular/special requirement, it is air-cooled to be no longer satisfied its cooling requirements.
With industrial boom, it is into well voltage, using high-voltage high-power motor that modern mine, which mostly uses 6KV, 10KV,
Occasion be also stepped up, high power load is started using high-voltage explosion-proof frequency converter, is adjusted the speed, can reduce high-power set
Impact of the standby starting to power grid, can also make equipment operate in optimum state, reach energy-efficient requirement.
High-voltage explosion-proof frequency converter mostly uses split type structure to design at present, i.e., explosion-proof by phase-shifting transformer individually designed one
Shell, using forced air cooling or water-wind heat dissipation type of cooling.This mode increases 6KV high-voltage explosion-proof frequency converter volume, together
When increase cost, be unfavorable for promoting.
Utility model content
According to the above-mentioned deficiencies in the prior art, technical problem to be solved by the utility model is: in order to solve the above problem
One of, a kind of water-cooling type 6KV mining high-voltage explosion-proof frequency converter is provided.
Water-cooling type 6KV mining high-voltage explosion-proof frequency converter described in the utility model, it is characterised in that: including explosion-proof casing and
Transducer body is mounted with transducer body in explosion-proof casing, and being arranged on explosion-proof casing also has 6KV transformer chamber, power cell
Chamber and control chamber, 6KV transformer chamber are located at one end of explosion-proof casing, and power cell chamber, control chamber are located at the another of explosion-proof casing
End, power cell chamber are located between 6KV transformer chamber, control chamber.
The transducer body includes water cooling phase-shifting transformer, power cell, Insulating frame, water-cooling system, main control system
System, it is intracavitary that water cooling phase-shifting transformer is mounted on 6KV transformer, and it is intracavitary that Insulating frame is mounted on power cell, pacifies on Insulating frame
Equipped with power cell, water-cooling system, master control system are mounted in control chamber.
The vice-side winding of the water cooling phase-shifting transformer is divided into three groups, is 15 road 690V three-phase voltages by 6kV transformation, adjacent
The phase difference of two-way 690V voltage is 12 °, constitutes 30 impulse commutation modes, the rectifier system of this multistage phase shift superposition can be big
The big current waveform for improving net side, for the net side power factor under loading it close to 1, Harmonics of Input ingredient is low.
It is additionally provided with 6kV on the water cooling phase-shifting transformer and becomes 380V diminishing coil, the power cell is provided with 15 altogether,
Every 5 power unit cascades form a phase, and the major loop of each power cell is relatively independent, using 690V input voltage, is convenient for
Using existing mature technology, realization realizes High voltage output with low-voltage component, saves cost.
The Insulating frame have 15 cells, each cell be equipped with a power cell, due to phase and phase it
Between need to inevitably enlarge shell volume according to 6KV voltage class design safety distance.In order to solve this problem, insulation is devised
Frame, Insulating frame are equipped with 15 independent cells, are spaced from each other between cell using insulation board, between reduction unit
Apart from while can ensure insulation performance between power cell again.
The master control system includes frequency converter master controller and power unit control plate, frequency converter master controller and power
Unit control panel is all made of the control system that DSP is control core, has ensured the performance of control system.
Optical-fibre communications is used between the frequency converter master controller and power unit control plate, realizes low pressure and high pressure
Partial reliable isolation improves safety and the anti-interference ability of system.
The water-cooling system includes main circulation pump, plate heat exchanger, water-cooling system control system, water cooling phase-shifting transformer water
Cold unit and power cell water cooling unit, the water outlet of the water inlet connection main circulation pump of water-cooling system control system are board-like to change
The water outlet of hot device is connected to the water inlet of water cooling phase-shifting transformer water cooling unit, power cell water cooling unit, water cooling phase shift transformation
Device water cooling unit, power cell water cooling unit water outlet connection main circulation pump water inlet, water-cooling system control system and master
Circulating pump is electrically connected, and cooling medium enters plate heat exchanger after being boosted by main circulation pump, and water cooling phase shift is entered after being cooled down
Heat is taken out of, returns major cycle by transformer water cooling unit, power cell water cooling unit by power cell and phase-shifting transformer
Pump, reciprocation cycle.Water-cooling control system is monitored and protects to water-cooling system, and water cooling operating status is passed through communication modes
Master controller is passed to, realizes control and monitoring to water-cooling system.
The water-cooling system further includes filter element, purification system, and filter element is mounted on main circulation pump and water cooling phase shift
On pipeline between transformer water cooling unit, power cell water cooling unit, one end of purification system is connected to going out for main circulation pump
The mouth of a river, the other end of purification system are connected to the water inlet of main circulation pump, and the purification system is deionized water circuit.
The transducer body further includes auxiliary transformer, contactor, preliminary filling electrical circuit, auxiliary transformer, contactor, pre-
It is intracavitary that charge circuit is installed in 6KV transformer.
Described each vice-side winding of water cooling phase-shifting transformer is the power supply of corresponding unit, and each power cell bears complete
The current of electric in portion, 15 phase voltage, 115 output power, 15 units have oneself independent three-phase defeated on the transformer
Enter winding.
The secondary winding uses extend-triangle connection, it is therefore an objective to realize multiplex, reduce the harmonic wave of input current at
Point.
Working principle of the utility model is: input side power supply is attached by high-voltage cable connector and contactor,
It is connected to phase-shifting transformer high-pressure side, phase-shifting transformer low-pressure side is respectively that each power cell provides AC-input voltage, multiple
Cascade of power units forms inversion major loop, and U, V output terminal of each unit are concatenated into wye connection and provide frequency conversion to motor
Output voltage after speed regulation.Water-cooling system is phase-shifting transformer, power cell radiates, master control system and power cell
Between use optical-fibre communications.
Compared with prior art, the utility model has the following beneficial effects: 1, water-cooling type 6KV described in the utility model
6KV transformer chamber, power cell chamber, control chamber are focused on one using integrated structure design by mining high-voltage explosion-proof frequency converter
In a explosion-proof casing, the connecting cable solved when high-voltage explosion-proof frequency converter divides chamber to design between cavity is too long, and structure design is multiple
Miscellaneous problem, reduce cable it is excessive caused by electromagnetic interference；Meanwhile being designed to an explosion-proof casing, facilitate equipment in underground
Transport, installation；2, water cooling phase-shifting transformer and power cell are all made of water-cooling, improve high-voltage explosion-proof frequency converter thermal diffusivity
Energy；3, using cascade of power units structure, the power cell of failure can be bypassed, it will not be because of a power cell event
Barrier causes frequency converter that cannot work, and improves the reliability of high-voltage explosion-proof frequency converter；4, Insulating frame is designed using checkering, solution
It has determined the fixation problem of power cell, has ensured the insulation performance between power cell.Each power cell monopolizes a grid,
Independently of each other, easy to disassemble.6KV high-voltage explosion-proof frequency converter uses integrated design scheme, first has to solve phase-shifting commutation transformation
The heat dissipation problem of device and power cell.6, to solve the above problems, we use integrated structure design and whole system water cooling
The type of cooling.Water-cooling system mainly includes circulating pump, deionization circuit, plate heat exchanger, pipeline and control section composition.It is cooling
Medium enters plate heat exchanger after being boosted by main circulation pump, and power cell water-cooling base plate and phase-shifting transformer are entered after being cooled down
Water-cooling base plate takes heat out of, returns main circulation pump, reciprocation cycle.Water-cooling control system is monitored and protects to water-cooling system
Shield, and water cooling operating status is passed into master controller by communication modes, realize control and monitoring to water-cooling system.Each
The power device of power cell is mounted on water-cooling base plate, and water-cooled plate is also equipped with inside phase-shifting transformer, will be become by water-cooled plate
The heat transfer that depressor and power device generate is to the interior recirculated water of water-cooling system, and interior recirculated water is by plate heat exchanger and outside
Recirculated water carries out heat exchange, and the heat that frequency converter generates is taken out of, realizes high-voltage explosion-proof frequency converter safe and reliable operation.
Detailed description of the invention
Fig. 1 is the principles of the present invention figure；
Fig. 2 is the structure chart of the utility model；
Fig. 3 is power cell electrical schematic diagram；
Fig. 4 is power cell connection schematic diagram；
Fig. 5 is water-cooling system schematic diagram；
Fig. 6 is the main view of explosion-proof casing；
Fig. 7 is the left view of explosion-proof casing.
In figure: 1, explosion-proof casing 1.1,6KV transformer chamber 1.2, power cell chamber 1.3, control chamber 2, water cooling
Phase-shifting transformer 3, power cell 4, Insulating frame 5, water-cooling system 5.1, main circulation pump 5.2, plate heat exchanger
5.3, filter element 5.4, purification system 5.5, water-cooling system control system 5.6, water cooling phase-shifting transformer water cooling unit
5.7, power cell water cooling unit 6, master control system
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
Below by way of specific embodiment, the utility model is described in further detail, but not to limit the utility model, all
Within the spirit of the present invention and principle, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Embodiment one
As shown in figs. 1-7, the water-cooling type 6KV mining high-voltage explosion-proof frequency converter, including explosion-proof casing 1 and frequency converter sheet
Body is mounted with transducer body in explosion-proof casing 1, and being arranged on explosion-proof casing 1 also has 6KV transformer chamber 1.1, power cell chamber
1.2 and control chamber 1.3,6KV transformer chamber 1.1 be located at one end of explosion-proof casing 1, power cell chamber 1.2, control chamber 1.3 are located at
The other end of explosion-proof casing 1, power cell chamber 1.2 are located between 6KV transformer chamber 1.1, control chamber 1.3.
In the present embodiment, the transducer body includes water cooling phase-shifting transformer 2, power cell 3, Insulating frame 4, water cooling
System 5, master control system 6, water cooling phase-shifting transformer 2 are mounted in 6KV transformer chamber 1.1, and Insulating frame 4 is mounted on power list
In first chamber 1.2, power cell 3 is installed on Insulating frame 4, water-cooling system 5, master control system 6 are mounted in control chamber 1.3；
The vice-side winding of the water cooling phase-shifting transformer 2 is divided into three groups, is 15 road 690V three-phase voltages, adjacent two-way by 6kV transformation
The phase difference of 690V voltage is 12 °, constitutes 30 impulse commutation modes, and the rectifier system of this multistage phase shift superposition can change significantly
The current waveform of kind net side, for the net side power factor under loading it close to 1, Harmonics of Input ingredient is low；Water cooling phase shift becomes
It is additionally provided with 6kV on depressor 2 and becomes 380V diminishing coil；The power cell 3 is provided with 15 altogether, every 5 power cells, 3 series connection group
The major loop of Cheng Yixiang, each power cell 3 are relatively independent, real convenient for using existing mature technology using 690V input voltage
Current low-voltage component realizes High voltage output, saves cost；The Insulating frame 4 has 15 cells, each cell
Equipped with a power cell；The master control system 6 includes frequency converter master controller and power unit control plate, frequency converter master control
Device and power unit control plate processed are all made of the control system that DSP is control core, have ensured the performance of control system；Frequency converter
Optical-fibre communications is used between master controller and power unit control plate, is realized low pressure and is isolated with the reliable of high-pressure section, mentions
The safety of high system and anti-interference ability；The water-cooling system 5 includes main circulation pump 5.1, plate heat exchanger 5.2, water cooling
System control sytsem 5.5, water cooling phase-shifting transformer water cooling unit 5.6 and power cell water cooling unit 5.7, water-cooling system control system
The water outlet of the water inlet connection main circulation pump 5.1 of system 5.5, the water outlet of plate heat exchanger 5.2 are connected to water cooling phase-shifting transformer
The water inlet of water cooling unit 5.6, power cell water cooling unit 5.7, water cooling phase-shifting transformer water cooling unit 5.6, power cell water
The water inlet of the water outlet connection main circulation pump 5.1 of cold unit 5.7, water-cooling system control system 5.5 and main circulation pump 5.1 are electrically
Connection；The water-cooling system 5 further includes filter element 5.3, purification system 5.4, and filter element 5.3 is mounted on main circulation pump 5.1
On pipeline between water cooling phase-shifting transformer water cooling unit 5.6, power cell water cooling unit 5.7, one end of purification system 5.4
It is connected to the water outlet of main circulation pump 5.1, the other end of purification system 5.4 is connected to the water inlet of main circulation pump 5.1, described net
Change system 5.4 is deionized water circuit；The transducer body further includes auxiliary transformer, contactor, preliminary filling electrical circuit, auxiliary
Transformer, contactor, preliminary filling electrical circuit are installed in 6KV transformer chamber 1.1；Each pair of the water cooling phase-shifting transformer 2
Side winding is the power supply of corresponding unit, and each power cell bears whole current of electric, 15 phase voltage, 115 output
Power；15 units have oneself independent three-phase input winding on the transformer；Secondary winding uses extend-triangle connection,
Purpose is to realize multiplex, reduces the harmonic components of input current.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.This
The technical staff of industry is retouched in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
That states only illustrates the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model
It will also have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.This is practical new
Type is claimed range and is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of water-cooling type 6KV mining high-voltage explosion-proof frequency converter, it is characterised in that: including explosion-proof casing (1) and transducer body,
It is mounted with transducer body in explosion-proof casing (1), being arranged also on explosion-proof casing (1) has 6KV transformer chamber (1.1), power cell
Chamber (1.2) and control chamber (1.3), 6KV transformer chamber (1.1) are located at one end of explosion-proof casing (1), power cell chamber (1.2), control
Chamber (1.3) processed is located at the other end of explosion-proof casing (1), and power cell chamber (1.2) is located at 6KV transformer chamber (1.1), control chamber
(1.3) between.
2. water-cooling type 6KV mining high-voltage explosion-proof frequency converter according to claim 1, it is characterised in that: the frequency converter sheet
Body includes water cooling phase-shifting transformer (2), power cell (3), Insulating frame (4), water-cooling system (5), master control system (6), water
Cold phase-shifting transformer (2) is mounted in 6KV transformer chamber (1.1), and Insulating frame (4) is mounted in power cell chamber (1.2), absolutely
It is equipped on edge frame (4) power cell (3), water-cooling system (5), master control system (6) are mounted in control chamber (1.3).
3. water-cooling type 6KV mining high-voltage explosion-proof frequency converter according to claim 2, it is characterised in that: the water cooling phase shift
The vice-side winding of transformer (2) is divided into three groups, is 15 road 690V three-phase voltages, the phase of adjacent two-way 690V voltage by 6kV transformation
Potential difference is 12 °, constitutes 30 impulse commutation modes.
4. water-cooling type 6KV mining high-voltage explosion-proof frequency converter according to claim 3, it is characterised in that: the power cell
(3) it is provided with 15 altogether, every 5 power cells (3) are composed in series a phase, and the major loop of each power cell (3) is relatively independent,
Using 690V input voltage.
5. water-cooling type 6KV mining high-voltage explosion-proof frequency converter according to claim 4, it is characterised in that: the Insulating frame
(4) there are 15 cells, each cell is equipped with a power cell.
6. water-cooling type 6KV mining high-voltage explosion-proof frequency converter according to claim 5, it is characterised in that: the main control system
System (6) includes frequency converter master controller and power unit control plate, and frequency converter master controller and power unit control plate are all made of
DSP is the control system of control core, has ensured the performance of control system.
7. water-cooling type 6KV mining high-voltage explosion-proof frequency converter according to claim 6, it is characterised in that: the water-cooling system
It (5) include main circulation pump (5.1), plate heat exchanger (5.2), water-cooling system control system (5.5), water cooling phase-shifting transformer water cooling
The water inlet of unit (5.6) and power cell water cooling unit (5.7), water-cooling system control system (5.5) is connected to main circulation pump
(5.1) water outlet of water outlet, plate heat exchanger (5.2) is connected to water cooling phase-shifting transformer water cooling unit (5.6), power cell
The water inlet of water cooling unit (5.7), the water outlet of water cooling phase-shifting transformer water cooling unit (5.6), power cell water cooling unit (5.7)
The water inlet of mouth connection main circulation pump (5.1), water-cooling system control system (5.5) and main circulation pump (5.1) are electrically connected.
8. water-cooling type 6KV mining high-voltage explosion-proof frequency converter according to claim 7, it is characterised in that: the water-cooling system
It (5) further include filter element (5.3), purification system (5.4), filter element (5.3) is mounted on main circulation pump (5.1) and water cooling is moved
On pipeline between phase transformer water cooling unit (5.6), power cell water cooling unit (5.7), one end of purification system (5.4) connects
It is connected to the water outlet of main circulation pump (5.1), the other end of purification system (5.4) is connected to the water inlet of main circulation pump (5.1), institute
Stating purification system (5.4) is deionized water circuit.
9. water-cooling type 6KV mining high-voltage explosion-proof frequency converter according to claim 8, it is characterised in that: the frequency converter sheet
Body further includes auxiliary transformer, contactor, preliminary filling electrical circuit, and auxiliary transformer, contactor, preliminary filling electrical circuit are installed in 6KV
In transformer chamber (1.1).
10. water-cooling type 6KV mining high-voltage explosion-proof frequency converter according to claim 9, it is characterised in that: the water cooling phase shift
Transformer (2) each vice-side winding is the power supply of corresponding unit, and each power cell bears whole current of electric, 1/5
Phase voltage, 1/15 output power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822023807.3U CN209545409U (en) | 2018-12-04 | 2018-12-04 | Water-cooling type 6KV mining high-voltage explosion-proof frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822023807.3U CN209545409U (en) | 2018-12-04 | 2018-12-04 | Water-cooling type 6KV mining high-voltage explosion-proof frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209545409U true CN209545409U (en) | 2019-10-25 |
Family
ID=68263439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822023807.3U Expired - Fee Related CN209545409U (en) | 2018-12-04 | 2018-12-04 | Water-cooling type 6KV mining high-voltage explosion-proof frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209545409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412393A (en) * | 2018-12-04 | 2019-03-01 | 兖州东方机电有限公司 | Water-cooling type 6KV mining high-voltage explosion-proof frequency converter |
-
2018
- 2018-12-04 CN CN201822023807.3U patent/CN209545409U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412393A (en) * | 2018-12-04 | 2019-03-01 | 兖州东方机电有限公司 | Water-cooling type 6KV mining high-voltage explosion-proof frequency converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210139911U (en) | Electrically-driven fracturing power supply semi-trailer | |
| US11035214B2 (en) | Power supply semi-trailer for electric drive fracturing equipment | |
| CN109412393A (en) | Water-cooling type 6KV mining high-voltage explosion-proof frequency converter | |
| CN104201866A (en) | Insulated gate bipolar transistor three-level power cabinet | |
| CN209545409U (en) | Water-cooling type 6KV mining high-voltage explosion-proof frequency converter | |
| CN106411143A (en) | Mine explosionproof high-voltage combined frequency converter core and frequency converter | |
| CN102223056A (en) | High-frequency high-voltage power supply structure | |
| CN110460065A (en) | Flameproof and intrinsically safe static reactive generator device and the implementation method of reactive compensation | |
| CN206041816U (en) | Mining flame proof high pressure combination converter core and converter | |
| CN207082843U (en) | A kind of photovoltaic station centralized inverter distribution system | |
| CN213990510U (en) | High-voltage frequency converter | |
| CN210577817U (en) | Flame-proof and intrinsic safety type static var generator device | |
| CN209962841U (en) | Intelligent booster station | |
| CN204190388U (en) | With the power cabinet of active power filtering function | |
| CN204720986U (en) | The compound circuit of a kind of integrated rectification, active power filtering and energy back braking function | |
| CN102403915A (en) | 1000KW/1140V mining explosion-proof twelve-pulse power supply frequency conversion device | |
| CN209982092U (en) | Potential energy recovery power generation air conditioning unit | |
| CN210958861U (en) | Air-cooled high-power induction heating power supply structure | |
| CN216774598U (en) | Compact-structure mining high-voltage explosion-proof frequency converter device | |
| CN202178138U (en) | Three-split rectifier transformer | |
| CN201726308U (en) | Ultrahigh-power, high-voltage and variable-frequency soft-start power unit | |
| CN110266050A (en) | A kind of potential energy recycling electricity generation air conditioner unit | |
| CN211701822U (en) | High-altitude water-cooling frequency conversion system | |
| CN202424541U (en) | 1000kW/1140V mineral explosion-proof 12-pulse power supply frequency conversion device | |
| CN205792235U (en) | Inverter power storehouse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20191025 Termination date: 20211204 |