CN208272836U - The outer water cooling power-supply system of converter valve - Google Patents
The outer water cooling power-supply system of converter valve Download PDFInfo
- Publication number
- CN208272836U CN208272836U CN201820772589.0U CN201820772589U CN208272836U CN 208272836 U CN208272836 U CN 208272836U CN 201820772589 U CN201820772589 U CN 201820772589U CN 208272836 U CN208272836 U CN 208272836U
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- 238000001816 cooling Methods 0.000 title claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 229910052710 silicon Inorganic materials 0.000 claims description 24
- 239000010703 silicon Substances 0.000 claims description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 21
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Inverter Devices (AREA)
Abstract
The utility model discloses water cooling power-supply systems outside a kind of converter valve, its inverter power switches and power frequency ring current switch accesses three phase mains, the ac supply signal input terminal of the ac supply signal output end connection frequency converter of inverter power switches, the power supply signal input of the variable frequency alternating current power source signal output end connection frequency conversion circuit contactor of frequency converter, the power supply signal output end of frequency conversion circuit contactor connects cooling blower feeder ear, the power supply signal input of the ac supply signal output end connection power frequency circuit contactor of power frequency ring current switch, the power supply signal output end of power frequency circuit contactor connects cooling blower feeder ear, the frequency converter working state signal input terminal of the working state signal output end connection contactor controller of frequency converter, contactor controller carries out frequency conversion circuit contactor and power frequency circuit contactor Control.The utility model automatically switches to power frequency bypass when frequency converter failure.Improve the reliability of water-cooling system.
Description
Technical field
The utility model relates to power supply unit technical fields, in particular to water cooling power-supply system outside a kind of converter valve.
Background technique
Silicon-controlled converter valve is the core element of converter station, and when normal operation, high current generates high heat, causes silicon-controlled
Temperature can steeply rise, silicon-controlled to be burned if effectively not cooling to silicon-controlled progress.Therefore need it is a set of have height can
It is exactly the valve cooling system described in us by the cooling system of property.
The outer cooling system of converter valve generally comprises water- cooling generator and outer chilled water system, wherein the power supply of outer chilled water system
System generally comprises spray pump frequency converter circuit, fan frequency conversion circuit, and this power-supply system has following ask in actual use
Topic:
Since blower fan of cooling tower electric power loop runs for 1 transducer drive, 1 cooling blower, while silicon-controlled converter valve
The fan and headlamp of outer cooling system control panel cabinet are also by above-mentioned transducer drive, however due to the work of silicon-controlled converter valve
Environment, frequency converter are easy to happen failure, when frequency converter failure, will cause a case where Fans are stopped transport in cooling tower, and control
The fan and headlamp of disk cabinet processed also can not normal use, meanwhile, influence the normal use of the outer cooling system of converter valve.
Utility model content
The purpose of this utility model seeks to provide a kind of outer water cooling power-supply system of converter valve, which increases power frequency circuit
It is powered, and frequency conversion power frequency loop switch contactor is set, when frequency converter failure or progress breaker disconnection, automatically switch
It is bypassed to power frequency, cooling blower will not be caused to stop transport because of frequency converter failure, cooling capacity decline.
In order to achieve this, a kind of outer water cooling power-supply system of converter valve designed by the utility model, it is characterised in that: it
Including three phase mains, inverter power switches, power frequency ring current switch, frequency converter, contactor controller, frequency conversion circuit contactor
With power frequency circuit contactor, wherein the ac supply signal input terminal of inverter power switches and power frequency ring current switch is equal
Access three phase mains, the ac supply signal input of the ac supply signal output end connection frequency converter of inverter power switches
End, the power supply signal input of the variable frequency alternating current power source signal output end connection frequency conversion circuit contactor of frequency converter, frequency conversion circuit
The power supply signal output end of contactor connects the cooling blower feeder ear of the outer cooling system of silicon-controlled converter valve, power frequency ring current
The power supply signal input of the ac supply signal output end connection power frequency circuit contactor of switch, the electricity of power frequency circuit contactor
Source signal output end connects the cooling blower feeder ear of the outer cooling system of silicon-controlled converter valve, and the working state signal of frequency converter is defeated
Outlet connects the frequency converter working state signal input terminal of contactor controller, and the first control signal output end of contactor controller connects
Connect the control terminal of frequency conversion circuit contactor, the control of the second control signal output end connection power frequency circuit contactor of contactor controller
End processed.
The utility model has the beneficial effects that
The utility model increases blower fan of cooling tower power frequency supply circuit (power frequency ring current switch and the contact of power frequency circuit newly
Device) and contactor controller, when frequency converter failure, contactor controller controls the utility model and automatically switches to power frequency bypass, no
Cooling blower can be caused to stop transport because of frequency converter failure.
In addition, the utility model has modified power supply logics, the fan and mains lighting supply of outer water-cooling system control panel cabinet from new
By newly-increased independent loop power supply, it is therefore prevented that influence of the frequency converter failure to fan and mains lighting supply.
The utility model device is easy to operate, and single equipment maintenance does not need stop transport entire water-cooling system and direct current system,
The reliability for improving water-cooling system reduces the direct current system unplanned outage time, and economic benefit is obvious, and safely may be used
It leans on, is easy to spread.
Detailed description of the invention
Fig. 1 is the utility model principle block diagram.
Wherein, 1-three phase mains, 2-inverter power switches, 3-power frequency ring currents switch, 4-frequency converters, 5-
Cooling system is cold outside contactor controller, 6-frequency conversion circuit contactors, 7-power frequency circuit contactors, 8-silicon-controlled converter valves
But the control panel cabinet fan of the outer cooling system of blower, 9-silicon-controlled converter valves, 10-lighting lamp powers switch, 11-silicon-controlled
Control panel cabinet headlamp, the 12-fan power switch of the outer cooling system of converter valve.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
A kind of outer water cooling power-supply system of converter valve designed by the utility model, it includes three phase mains 1, converter power supply
Switch 2, power frequency ring current switch 3, frequency converter 4 (model: ATV21HD11N4), contactor controller 5, frequency conversion circuit contactor 6
With power frequency circuit contactor 7 (model: LC1-D32P7C), wherein inverter power switches 2 and power frequency ring current switch 3
Ac supply signal input terminal accesses three phase mains 1, and the ac supply signal output end of inverter power switches 2 connects frequency conversion
The ac supply signal input terminal of device 4, the variable frequency alternating current power source signal output end connection frequency conversion circuit contactor 6 of frequency converter 4
Power supply signal input, the power supply signal output end of frequency conversion circuit contactor 6 connect the cold of the outer cooling system of silicon-controlled converter valve
But 8 feeder ear of blower, the power supply of the ac supply signal output end connection power frequency circuit contactor 7 of power frequency ring current switch 3
Signal input part, the power supply signal output end of power frequency circuit contactor 7 connect the cooling wind of the outer cooling system of silicon-controlled converter valve
8 feeder ear of machine, the frequency converter working state signal input of the working state signal output end connection contactor controller 5 of frequency converter 4
End, the control terminal of the first control signal output end connection frequency conversion circuit contactor 6 of contactor controller 5, the of contactor controller 5
The control terminal of two control signal outputs connection power frequency circuit contactor 7.
In above-mentioned technical proposal, the power supply signal input of frequency conversion circuit contactor 6 and power supply signal output end it
Between be normally-closed contact.It is normally opened touching between the power supply signal input and power supply signal output end of power frequency circuit contactor 7
Point.Above structure makes the utility model under the initial situation that frequency converter 4 works normally, and is changed by frequency converter 4 silicon-controlled
The cooling blower 8 for flowing the outer cooling system of valve is powered.
In above-mentioned technical proposal, it further includes fan power switch 12, and the three phase mains 1 also passes through fan power switch
The three phase mains interface of the control panel cabinet fan 9 of the 12 outer cooling systems of the silicon-controlled converter valve of connection.
In above-mentioned technical proposal, it further includes lighting lamp power switch 10, and the three phase mains 1 also passes through lighting lamp power
Switch 10 connects the three phase mains interface of the control panel cabinet headlamp 11 of the outer cooling system of silicon-controlled converter valve.
When utility model works, working state signal is transferred to contactor controller 5 by frequency converter 4, when frequency converter 4 exports
When the working condition of normal operation, touching controller 5 controls frequency conversion circuit contactor 6 and connects, while controlling power frequency circuit contactor 7
It disconnects, three phase mains 1 is powered by cooling blower 8 of the frequency converter 4 to cooling system outside silicon-controlled converter valve at this time, power frequency circuit
It disconnects, when frequency converter 4 exports the working condition of operation troubles, touching controller 5 controls frequency conversion circuit contactor 6 and disconnects,
The connection of power frequency circuit contactor 7 is controlled simultaneously, and three phase mains 1 is by power frequency circuit to cooling system outside silicon-controlled converter valve at this time
Cooling blower 8 is powered；
In addition, frequency converter circuit and power frequency circuit can be opened by inverter power switches 2 and power frequency ring current respectively
It closes 3 and carries out manual control.
The control panel cabinet fan 9 of the outer cooling system of silicon-controlled converter valve and the control panel of the outer cooling system of silicon-controlled converter valve
Cabinet headlamp 11 carries out manual control by fan power switch 12 and lighting lamp power switch 10 respectively.
The content that this specification is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Claims (5)
1. a kind of outer water cooling power-supply system of converter valve, it is characterised in that: it includes three phase mains (1), inverter power switches
(2), power frequency ring current switch (3), frequency converter (4), contactor controller (5), frequency conversion circuit contactor (6) and power frequency circuit connect
Tentaculum (7), wherein the ac supply signal input terminal of inverter power switches (2) and power frequency ring current switch (3) accesses
Three phase mains (1), the ac supply signal of ac supply signal output end connection frequency converter (4) of inverter power switches (2)
Input terminal, the power supply signal input of variable frequency alternating current power source signal output end connection frequency conversion circuit contactor (6) of frequency converter (4)
End, the cooling blower (8) that the power supply signal output end of frequency conversion circuit contactor (6) connects the outer cooling system of silicon-controlled converter valve supply
Electric end, the power supply signal that power frequency ring current switchs ac supply signal output end connection power frequency circuit contactor (7) of (3) are defeated
Enter end, the power supply signal output end of power frequency circuit contactor (7) connects the cooling blower (8) of the outer cooling system of silicon-controlled converter valve
Feeder ear, the frequency converter working state signal input of working state signal output end connection contactor controller (5) of frequency converter (4)
End, the control terminal of first control signal output end connection frequency conversion circuit contactor (6) of contactor controller (5), contactor controller
(5) control terminal of second control signal output end connection power frequency circuit contactor (7).
2. the outer water cooling power-supply system of converter valve according to claim 1, it is characterised in that: frequency conversion circuit contactor
It (6) is normally-closed contact between power supply signal input and power supply signal output end.
3. the outer water cooling power-supply system of converter valve according to claim 1, it is characterised in that: power frequency circuit contactor
It (7) is normally opened contact between power supply signal input and power supply signal output end.
4. the outer water cooling power-supply system of converter valve according to claim 1, it is characterised in that: it further includes fan power switch
(12), the three phase mains (1) also connects the control panel of the outer cooling system of silicon-controlled converter valve by fan power switch (12)
The three phase mains interface of cabinet fan (9).
5. the outer water cooling power-supply system of converter valve according to claim 1, it is characterised in that: it further includes that lighting lamp power is opened
It closes (10), the three phase mains (1) also connects the control of the outer cooling system of silicon-controlled converter valve by lighting lamp power switch (10)
The three phase mains interface of disk cabinet headlamp (11) processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820772589.0U CN208272836U (en) | 2018-05-23 | 2018-05-23 | The outer water cooling power-supply system of converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820772589.0U CN208272836U (en) | 2018-05-23 | 2018-05-23 | The outer water cooling power-supply system of converter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208272836U true CN208272836U (en) | 2018-12-21 |
Family
ID=64684173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820772589.0U Active CN208272836U (en) | 2018-05-23 | 2018-05-23 | The outer water cooling power-supply system of converter valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208272836U (en) |
-
2018
- 2018-05-23 CN CN201820772589.0U patent/CN208272836U/en active Active
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