CN106059323A - Cooling system of frequency converter - Google Patents
Cooling system of frequency converter Download PDFInfo
- Publication number
- CN106059323A CN106059323A CN201610540968.2A CN201610540968A CN106059323A CN 106059323 A CN106059323 A CN 106059323A CN 201610540968 A CN201610540968 A CN 201610540968A CN 106059323 A CN106059323 A CN 106059323A
- Authority
- CN
- China
- Prior art keywords
- cooling medium
- supply loop
- medium supply
- liquid
- converter
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a cooling system of a frequency converter. The cooling system is characterized by comprising an internal circulation cooling medium supply loop, an external circulation cooling medium supply loop and a temperature control central control unit, wherein the temperature control central control unit is connected with the internal circulation cooling medium supply loop and the external circulation cooling medium supply loop; the internal circulation cooling medium supply loop comprises an internal circulation pipeline, one or more liquid cooling doors, a liquid separator and a liquid trap; the temperature control central control unit comprises a cooling medium heat exchanger and an internal circulation water pump; the external circulation cooling medium supply loop comprises an external circulation pipeline, a cold water set, a water tank and an external circulation water pump; and the internal circulation cooling medium supply loop and the external circulation cooling medium supply loop are connected and carry out heat exchange through the cooling medium heat exchanger. The heat dissipation thermal resistance is small, the efficiency is high, the energy consumption is small, and at the same time, local hot spots inside a frequency converter cabinet are eliminated.
Description
Technical field
The present invention relates to the cooling device of electrical equipment, the cooling system of a kind of converter.
Background technology
Converter is the machine controlling motor speed, and 50HZ alternating current power supply is made into direct current by it, then by inversion by direct current
It is converted into the adjustable alternating current power supply of electric voltage frequency, is changed the rotating speed of motor by the frequency changing electrical network.
Converter operationally, can produce more heat, in order to ensure that converter works under normal working conditions,
Equipment typically uses air-cooled or natural cooling mode to dispel the heat, thus ensures the working condition of converter.But it is as electronics
Developing rapidly of technology, improving constantly of market demands, the heat of converter is more and more higher, and its heat density is more and more higher, suitable
The environmental requirement answered is more and more higher, and the mode of heat radiation the most progressively expands to the cold mode of liquid.
Liquid cold mode principal mode in industry has at present: directly external water source+internal refrigeration storage terminal+single-loop system；
Plug-in dry and cold machine+internal refrigeration storage terminal+single-loop system；Plug-in dry and cold machine+internal refrigeration storage terminal+double-circuit system.These are several
The liquid of form is cold following defect: outer machine does not has refrigeration plant, it is difficult to adapt to worse ambient temperature；Majority is single loop,
There is disclosure risk, have a strong impact on equipment safety；Use cold drawing just for power device, but other heater members are difficult to obtain very
Good heat radiation；Whole system is not carried out effective monitoring, do not have unified central temperature control to lack operability；Although merit
Rate device temperature is controlled, but interior of equipment cabinet integrated environment temperature is the highest, can produce hot localised points, for can in rack
It is all unfavorable factor by property, safety, device lifetime etc..
Summary of the invention
The invention aims to solve above-mentioned technical problem, it is provided that the cooling system of a kind of converter, this cooling system
System heat radiation thermal resistance is little, and radiating efficiency is high, and radiation energy consumption is little, eliminates the hot localised points within frequency converter cabinet simultaneously.
Realize the technical scheme is that the cooling system of a kind of converter, it is characterised in that: include interior circulating cooling
Medium supply loop, outer circulation cooling medium supply loop and central temperature control；Described central temperature control is divided
It is not connected with interior circulating cooling medium supply loop, outer circulation cooling medium supply loop；Described interior circulating cooling medium supply
Loop includes inner loop pipeline, one or more liquid unexpected winner, liquor separator, liquid trap；Described central temperature control includes cold
But medium heat exchanger, interior water circulating pump；Described outer circulation cooling medium supply loop includes handpiece Water Chilling Units, water tank, outer circulation
Water pump；Described interior circulating cooling medium supply loop and outer circulation cooling medium supply loop are held in the mouth by cooling medium heat exchanger
Connect and carry out heat exchange.
Described liquid unexpected winner is positioned over each frequency converter cabinet air inlet, and making the air of entrance interior of equipment cabinet is cold after cooling
Air.
Described liquid unexpected winner is imported and exported snap joint with liquor separator, liquid trap respectively and is connected, and described liquid unexpected winner with divide
Being provided with flow control valve between liquid device, described liquid unexpected winner exit is provided with temperature sensor and connects with central temperature control
Connect.
As preferably, described liquid unexpected winner is hose connection door hanging type heat exchanger, and the connecting line of liquid in-out unexpected winner is soft
Pipe, can safeguard equipment by Convenient switch door.
Further, described liquid unexpected winner is the gas-liquid heat-exchange of gear piece, microchannel and other various ways.
Being provided with temperature sensor in described central temperature control at cooling medium heat exchanger outlet, temperature control central authorities are controlled
Unit processed is connected with each temperature sensor and regulation valve, is converted into control signal after receiving the temperature signal that temperature sensor is passed back
It is sent to governor valve control and respectively regulates valve opening and closing and flow thereof, realize the real-time monitoring to whole liquid cooling system.
Described central temperature control uses PLC temperature control module, or uses single-chip microcomputer and other general temperature control circuits.
Described cooling medium heat exchanger is heat-exchangers of the plate type.
Interior circulating cooling medium in described interior circulating cooling medium supply loop is for having deionized water, insect protected, anticorrosion
The liquid of feature.
The pipeline of the external circulation line in described outer circulation cooling medium loop is provided with Electrostatic water treatment instrument remove with antiscale
Dirt, and the water tank in described outer circulation cooling medium loop are provided with preventing freeze in winter electric heater.
The invention has the beneficial effects as follows:
1, the present invention uses liquid unexpected winner i.e. liquid suction heat exchanger directly to cool down the incoming air of converter, its thermal resistance of dispelling the heat
Little, radiating efficiency is high, and radiation energy consumption is little, eliminates the hot localised points within this frequency converter cabinet simultaneously；
2, the present invention can carry out accurate control according to the thermic load of each converter, decreases converter machine volume,
Increase space availability ratio；
3, present invention can ensure that the pressure of interior circulating liquid, flow parameter are controlled, water quality is that deionization, anticorrosion state are kept away
Exempt from disclosure risk；Simultaneously because the handpiece Water Chilling Units introducing active refrigeration can be greatly increased the ambient temperature subject range of converter
It is not less than 60 DEG C.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the annexation schematic diagram of a kind of embodiment.
Label in figure: circulating cooling medium supply loop in 1,2 outer circulation cooling medium supply loops, 3 temperature controls
Central control unit, 4 water tanks, 5 electric heaters, 6 control systems, 7 cooling medium exchangers, 8 liquor separators, 9
Liquid trap, 10 liquid unexpected winners, water circulating pump in 11,12 proportioning valves, 13 filters, 14 control panels, 15 liquid storages
Device, 16 air bleeding valves, 17 hand-operated valves, 18 liquid level sensors, 19 check-valves, 20 miniature fluid infusion pumps, 21 moisturizing bags,
22 joints, 23 snap joints, 24 flow control valves, 25 water logging sensors, 26 dew point transducers, 27 humitures
Sensor, 28 converters, 29 outer circulation water pumps, 30 pipelines, 31 circuit, 32 handpiece Water Chilling Units, Fs effusion meter,
T1, T2a, T2b temperature sensor, Ps1, Ps2, Ps3, Ps4 pressure transducer.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the cooling system of a kind of converter, including interior circulating cooling medium supply loop 1, outer circulation
Cooling medium supply loop 2 and central temperature control 3；Described central temperature control 3 is situated between with interior circulating cooling respectively
Matter supply loop 1, outer circulation cooling medium supply loop 2 connect；Described interior circulating cooling medium supply loop 1 includes multiple liquid
Unexpected winner 10, is connected liquor separator 8, liquid trap 9 by inner loop pipeline respectively；Described central temperature control 3 includes that cooling is situated between
Mass heat transfer device 7, interior water circulating pump 11；Described outer circulation cooling medium supply loop 2 includes handpiece Water Chilling Units 32, water tank 4, follows outward
Ring water pump 29；Described interior circulating cooling medium supply loop 1 and outer circulation cooling medium supply loop 2 are handed over by cooling medium heat
Parallel operation 7 is connected and carries out heat exchange.Described interior circulating cooling medium supply loop 1, outer circulation cooling medium supply loop 2 and temperature
Control central control unit 3 is monitored by the control system 6 arranged.
Described liquid unexpected winner 10 is positioned over each frequency converter cabinet air inlet, and the corresponding liquid of frequency converter cabinet is cold
Door, the air making entrance interior of equipment cabinet is the cold air after cooling down, and described liquid unexpected winner 10 exit is provided with temperature sensor.Described
The import and export of liquid unexpected winner 10 snap joint 23 with liquor separator 8, liquid trap 9 respectively is connected, and at described liquid unexpected winner 10 and separatory
It is provided with flow control valve 24 between device 8, is provided with temperature sensor at liquid unexpected winner 10 and is connected with central temperature control 3.Institute
Stating liquid unexpected winner 10 is hose connection door hanging type gear piece gas-liquid heat-exchange.
In described central temperature control 3, cooling medium heat exchanger 7 is heat-exchangers of the plate type, in it at loop exit
Connecting and have reservoir 15, this reservoir 15 outlet at bottom connects liquid unexpected winner 10 for hydrodynamic apparatus；Manual including bridge layout
Valve 17, interior water circulating pump 11 and corresponding check-valves 19；It is connected to liquor separator 8 by interface 22；Export pipeline at reservoir 15
Temperature sensor T2a, T2b, pressure transducer Ps1 it is also associated with on 30；The pipeline 30 connecting interface 22 connects and has pressure
Sensor Ps2；Reservoir 15 and interior water circulating pump 11 all there is air bleeding valve 16；It is also equipped with fluid infusion bottom described reservoir 15
Device, when liquid level sensor 18 detects liquid level deficiency, starts miniature fluid infusion pump 20 by moisturizing bag 21 by control system 6
Water supplement to reservoir 15；Miniature fluid infusion pump 20 rear end is also equipped with check-valves 19.
In described central temperature control 3, the interior loop head of cooling medium heat exchanger 7 connects collection by pipeline 30
Liquid device 9, this liquid trap 9 is connected with liquid unexpected winner 10 by interface 22；This section of pipeline 30 is also associated with filter 13 and aerofluxus
Valve 16.
In described central temperature control 3, the outer circulation outlet of cooling medium heat exchanger 7 connects water by pipeline 30
Case 4, is transported to water tank 4 by the water after heat exchange；Two proportioning valves 12, effusion meter Fs are installed on pipeline 30.
In described central temperature control 3, the outer circulation entrance of cooling medium heat exchanger 7 connects water by pipeline 30
Case 4, pipeline 30 is provided with filter 13 and handpiece Water Chilling Units 32, temperature sensor T1, and pressure transducer Ps3, Ps4, to temperature
Pressure parameter is monitored.Hand-operated valve 17 is installed between water tank entry and exit, it is simple to manual adjusting operation.
Central temperature control 3 is connected with each temperature sensor and regulation valve by circuit 31, receives temperature sensor
Transmit control signals to governor valve control after the temperature signal passed back and respectively regulate valve opening and closing and flow thereof, realize whole liquid
The real-time monitoring of cooling system.Described central temperature control uses PLC temperature control module, and its control panel 14 has been also respectively connected with
Water logging sensor 25, dew point transducer 26, Temperature Humidity Sensor 27, converter 28.
Described interior circulating cooling medium is to have deionized water, insect protected, the liquid of anticorrosion feature.Described outer circulation pipeline sets
There is Electrostatic water treatment instrument with antiscaling, descaling, and be provided with preventing freeze in winter electric heater 5.
The present invention is illustrated by use above specific case, is only intended to help and understands the present invention, not in order to limit
The present invention processed.For those skilled in the art, according to the thought of the present invention, it is also possible to make some simply
Deduce, deform or replace.
Claims (10)
1. the cooling system of a converter, it is characterised in that: include that interior circulating cooling medium supply loop, outer circulation cooling are situated between
Matter supply loop and central temperature control；Described central temperature control is returned with interior circulating cooling medium supply respectively
Road, outer circulation cooling medium supply loop connect；Described interior circulating cooling medium supply loop include inner loop pipeline, one or
Multiple liquid unexpected winners, liquor separator, liquid trap；Described central temperature control includes cooling medium heat exchanger, interior water circulating pump；
Described outer circulation cooling medium supply loop includes external circulation line, handpiece Water Chilling Units, water tank, outer circulation water pump；Described interior circulation
Cooling medium supply loop and outer circulation cooling medium supply loop are connected by cooling medium heat exchanger and carry out heat exchange.
The cooling system of converter the most according to claim 1, it is characterised in that: described liquid unexpected winner is positioned over each converter machine
Cabinet air inlet, the air making entrance interior of equipment cabinet is the cold air after cooling down.
The cooling system of converter the most according to claim 1, it is characterised in that: described liquid unexpected winner import and export respectively with separatory
Device, the snap joint of liquid trap connect, and are provided with flow control valve between described liquid unexpected winner and liquor separator, and described liquid unexpected winner goes out
It is provided with temperature sensor at Kou and is connected with central temperature control.
4. according to the cooling system of converter described in claim 1 or 2 or 3, it is characterised in that: described liquid unexpected winner is hose connection
Door hanging type heat exchanger.
5. according to the cooling system of converter described in claim 1 or 2 or 3, it is characterised in that: described liquid unexpected winner is gear piece, micro-
Passage and the gas-liquid heat-exchange of other various ways.
The cooling system of converter the most according to claim 1, it is characterised in that: described central temperature control cools down
Being provided with temperature sensor at medium heat exchanger outlet, central temperature control is connected with each temperature sensor and regulation valve,
Be converted into after receiving the temperature signal passed back of temperature sensor control signal be sent to governor valve control respectively regulate valve opening and closing and
Flow, realizes the real-time monitoring to whole liquid cooling system.
7. according to the cooling system of converter described in claim 1 or 6, it is characterised in that: described central temperature control is adopted
Use PLC temperature control module, or use single-chip microcomputer and other general temperature control circuits.
8. according to the cooling system of converter described in claim 1 or 6, it is characterised in that: described cooling medium heat exchanger is
Heat-exchangers of the plate type.
The cooling system of converter the most according to claim 1, it is characterised in that: described interior circulating cooling medium supply loop
In interior circulating cooling medium be that there is deionized water, insect protected, the liquid of anticorrosion feature.
The cooling system of converter the most according to claim 1, it is characterised in that: in described outer circulation cooling medium loop
External circulation line pipeline in be provided with Electrostatic water treatment instrument with antiscaling, descaling, and in described outer circulation cooling medium loop
Water tank is provided with preventing freeze in winter electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610540968.2A CN106059323A (en) | 2016-07-08 | 2016-07-08 | Cooling system of frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610540968.2A CN106059323A (en) | 2016-07-08 | 2016-07-08 | Cooling system of frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106059323A true CN106059323A (en) | 2016-10-26 |
Family
ID=57186627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610540968.2A Pending CN106059323A (en) | 2016-07-08 | 2016-07-08 | Cooling system of frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106059323A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107072107A (en) * | 2016-12-28 | 2017-08-18 | 广东申菱环境系统股份有限公司 | A kind of accurate high-efficiency refrigerating system of data center's liquid gas binary channels and its control method |
| CN108471693A (en) * | 2018-03-20 | 2018-08-31 | 联想(北京)有限公司 | A kind of vaporation-type cooling system |
| CN108609766A (en) * | 2016-12-09 | 2018-10-02 | 国家电网公司 | A kind of stationary frequency conversion starter cooling water system water replanishing device |
| CN109618540A (en) * | 2019-01-02 | 2019-04-12 | 深圳易能电气技术股份有限公司 | A kind of cooling system of four-quadrant frequency converter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902897A (en) * | 2010-07-19 | 2010-12-01 | 深圳市中兴新通讯设备有限公司 | Communication machine room cooling system |
| CN105704990A (en) * | 2016-04-26 | 2016-06-22 | 广东申菱环境系统股份有限公司 | Liquid cooling system and intelligent temperature control unit therefor |
-
2016
- 2016-07-08 CN CN201610540968.2A patent/CN106059323A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902897A (en) * | 2010-07-19 | 2010-12-01 | 深圳市中兴新通讯设备有限公司 | Communication machine room cooling system |
| CN105704990A (en) * | 2016-04-26 | 2016-06-22 | 广东申菱环境系统股份有限公司 | Liquid cooling system and intelligent temperature control unit therefor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609766A (en) * | 2016-12-09 | 2018-10-02 | 国家电网公司 | A kind of stationary frequency conversion starter cooling water system water replanishing device |
| CN107072107A (en) * | 2016-12-28 | 2017-08-18 | 广东申菱环境系统股份有限公司 | A kind of accurate high-efficiency refrigerating system of data center's liquid gas binary channels and its control method |
| CN108471693A (en) * | 2018-03-20 | 2018-08-31 | 联想(北京)有限公司 | A kind of vaporation-type cooling system |
| CN109618540A (en) * | 2019-01-02 | 2019-04-12 | 深圳易能电气技术股份有限公司 | A kind of cooling system of four-quadrant frequency converter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |