CN106411153B - A kind of frequency conversion tank and frequency conversion tank dewing-proof method - Google Patents
A kind of frequency conversion tank and frequency conversion tank dewing-proof method Download PDFInfo
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- CN106411153B CN106411153B CN201611024872.7A CN201611024872A CN106411153B CN 106411153 B CN106411153 B CN 106411153B CN 201611024872 A CN201611024872 A CN 201611024872A CN 106411153 B CN106411153 B CN 106411153B
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- frequency conversion
- conversion tank
- cabinet body
- heat exchanger
- air
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Classifications
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- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20945—Thermal management, e.g. inverter temperature control
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of frequency conversion tank and frequency conversion tank dewing-proof methods, belong to the anti-condensation technical field of frequency conversion tank, design to solve the problems, such as to be also easy to produce condensation in existing frequency conversion tank.Frequency conversion tank of the present invention includes cabinet body, air supply device and heat exchanger is arranged in the air inlet of cabinet body, the cold fluid in heat exchanger dehumidifies to the gas cooling for being sent into cabinet body by air supply device.Frequency conversion tank of the present invention and dewing-proof method based on the frequency conversion tank can prevent from forming condensation in cabinet body, frequency conversion tank high reliablity.
Description
Technical field
The present invention relates to the anti-condensation technical field of frequency conversion tank more particularly to a kind of frequency conversion tank and the change based on the frequency conversion tank
Frequency cabinet dewing-proof method.
Background technique
In usual frequency conversion tank there is heating element to need to cool down, as directly to drive centrifugal refrigerating machines airborne high-power for photovoltaic
Frequency conversion tank has commutation inversion unit, and during the work time, the fever of commutation inversion unit is serious, needs to carry out using additional cold source
Cooling heat dissipation.The cooling heat dissipation of high-power frequency conversion cabinet has the side such as air-cooled blow-through, water cooling radiant panel, low temperature refrigerant radiant panel at present
Formula.Air-cooled blow-through effect is poor, and fan is easy to damage；Water cooling radiant panel needs additional increase water source and water pump, effect undesirable；Low temperature
Refrigerant radiant panel is a kind of new mode, with refrigeration principle, using the refrigeration cycle of cooling air conditioning group, low temperature refrigerant radiation
Plate is bonded with commutation inversion unit, and the heat that high-power heating element generates, radiator face are taken away rapidly in refrigerant evaporation heat absorption
Product is big, good cooling results.
But either water cooling radiant panel or low temperature refrigerant radiant panel, since frequency conversion tank cabinet body leakproofness is bad and
The phenomenon that air expands with heat and contract with cold, in the course of work, the humid air outside cabinet body enters in cabinet body, all can in radiation plate surface or
Dew condensation phenomenon is generated with the surface that radiant panel directly contacts, hidden danger is generated to the reliability of electric elements in frequency conversion tank.
Summary of the invention
In view of the above problem, an object of the present invention is to provide a kind of frequency conversion tanks that can be anti-condensation.
It is another object of the present invention to propose a kind of frequency conversion tank dewing-proof method.
In order to achieve the above object, on the one hand, the invention adopts the following technical scheme:
Air supply device and heat exchanger, the heat exchange is arranged in the air inlet of the cabinet body in a kind of frequency conversion tank, including cabinet body
Cold fluid in device dehumidifies to the gas cooling for being sent into the cabinet body by the air supply device.
Further, the heat exchanger is surface air cooler.
Further, the fluid inlet of the heat exchanger is connected to the refrigerant exit of air-conditioner set, the stream of the heat exchanger
Body outlet is connected to the refrigerant inlet of the air-conditioner set.
Further, it is provided on the pipeline between the import of the heat exchanger and the refrigerant exit of the air-conditioner set
First flow control valve.
Further, filter device is provided in front of the air supply device.
Further, air intake passage is provided in the cabinet body.
Further, it is provided with humidity sensor in the cabinet body, is provided with and the humidity sensor outside the cabinet body
The controller of communication connection；And/or hygrometer is provided with outside the cabinet body.
Further, the frequency conversion tank is that photovoltaic directly drives centrifugal compressor frequency conversion tank.
On the other hand, the invention adopts the following technical scheme:
A kind of frequency conversion tank dewing-proof method based on any of the above-described frequency conversion tank, detects the intracorporal humidity of the cabinet, when
When the intracorporal humidity of cabinet is higher than the humidity outside predetermined value and/or the cabinet body higher than predetermined value, increase in the heat exchanger
The flow of cold fluid and/or the air supply velocity for reducing the air supply device.
Further, when the intracorporal humidity of the cabinet is lower than predetermined value, reduce the flow of cold fluid in the heat exchanger.
Beneficial effects of the present invention are as follows:
Frequency conversion tank of the present invention is sent into the intracorporal gas progress pre-dehumidified of frequency conversion cabinet to by air supply device by heat exchanger
It manages, cabinet body is entered after gas dry and forms positive pressure, gas original in cabinet body is discharged by cabinet body gap, reduce the outer humidity of cabinet
Gas enters, and prevents from forming condensation in frequency conversion tank, guarantees frequency conversion tank reliability；Meanwhile the gas handled through heat exchanger can be used for
Gas cools down in cabinet.
Frequency conversion tank dewing-proof method of the present invention makes temperature in big-power transducer cabinet, humidity in a controllable range
Fluctuation keeps drying in cabinet, prevents condensation, ensure that the reliability of frequency conversion tank.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the frequency conversion tank that the preferred embodiment of the present invention one provides.
In figure: 1, cabinet body；2, air supply device；3, heat exchanger；4, filter device；5, air intake passage；6, air-conditioner set；7,
Flow control valve；8, second flow control valve；9, commutation inversion unit；10, low temperature refrigerant radiant panel.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Preferred embodiment one:
This preferred embodiment provides a kind of frequency conversion tank, preferably but be not limited to photovoltaic directly drive centrifugal compressor become
Frequency cabinet is also possible to other any frequency conversion tanks for being also easy to produce condensation.
Referring to Fig. 1, the frequency conversion tank of this preferred embodiment includes cabinet body 1, air supply device is set in the air inlet of cabinet body 1
2 and heat exchanger 3, the cold fluid in heat exchanger 3 dehumidifies to the gas cooling for being sent into cabinet body 1 by air supply device 2.Air supply device 2 is excellent
Low rotary speed fan is selected but be not limited to, can be blown with appropriate speed into frequency conversion tank cabinet body 1.
Pre-dehumidified is carried out to the gas being sent into frequency conversion tank cabinet body 1 by air supply device 2 by heat exchanger 3 in the present embodiment
It manages, cabinet body 1 is entered after gas dry and forms positive pressure, original gas in cabinet body 1 is discharged by the gap of cabinet body 1, reduction cabinet
Outer wet gas enters, and prevents from forming condensation in frequency conversion tank, guarantees frequency conversion tank reliability；Meanwhile the gas cooling through heat exchanger 3
Gas in cabinet can be used to cool down.
The type of heat exchanger 3 is not specifically limited, can be to the gas cooling pre-dehumidified for entering cabinet body 1.But it is preferred that
Ground, heat exchanger 3 is surface air cooler, to guarantee heat transfer effect.
Heat exchanger 3 is connected to cold fluid source, and in order to keep overall structure more simple and compact, good cooling results can make to exchange heat
The fluid inlet of device 3 is connected to the refrigerant exit of air-conditioner set 6, the fluid outlet of heat exchanger 3 and the refrigerant inlet of air-conditioner set 6
Connection.When frequency conversion tank is that photovoltaic directly drives centrifugal compressor frequency conversion tank, the stream of the low temperature refrigerant radiant panel 10 in frequency conversion tank
Body entrance is also connected to the refrigerant exit of air-conditioner set 6, and the fluid outlet of low temperature refrigerant radiant panel 10 is also cold with air-conditioner set 6
Matchmaker's entrance connection, to cool down for commutation inversion unit 9.Heat exchanger 3 and low temperature refrigerant radiant panel 10 are utilized respectively air-conditioner set 6
Refrigeration cycle, prevent from forming condensation in frequency conversion tank while frequency conversion tank is effectively radiated, it is ingenious in design, compact-sized,
Good refrigeration effect.
First flow control is provided on pipeline between the fluid inlet of heat exchanger 3 and the refrigerant exit of air-conditioner set 6
Valve 7 processed, first flow control valve 7 is preferred but is not limited to restricting element, can be controlled by adjusting the aperture of restricting element
Cold medium flux in heat exchanger 3 reaches maximum effect on moisture extraction.
Is provided on pipeline between the fluid inlet of low temperature refrigerant radiant panel 10 and the refrigerant exit of air-conditioner set 6
Two flow control valves 8, second flow control valve 8 is preferred but is not limited to restricting element, can be by adjusting opening for restricting element
It spends to control the cold medium flux of low temperature refrigerant radiant panel 10, to reach cooling effect.
On the basis of above structure, filter device 4 is additionally provided in front of air supply device 2.The structure of filter device 4 does not have
There is concrete restriction, the gas entered in frequency conversion tank can be filtered, dust etc. is avoided to enter in frequency conversion tank with fresh air, guaranteed
Cleannes in cabinet, for example, filter device 4 can be filter screen.
The fresh air introduced in frequency conversion tank by air supply device 2 can be cabinet for preventing 1 gap of cabinet body from entering wet gas
Gas cooling in body 1, therefore, the fresh air introduced by air supply device 2 are preferably to be delivered to gap and the cabinet domestic demand drop of cabinet body 1
At temperature.On the basis of above structure, air intake passage 5 is provided in frequency conversion tank, the position and wind-guiding direction of air intake passage 5 can
Specifically it is arranged according to the position that the position easily leaked out in frequency conversion tank and frequency conversion tank domestic demand cool down.
On the basis of above structure, be provided with humidity sensor (not shown) in cabinet body 1, be provided with outside cabinet body 1 with
The voltage signal that humidity sensor exports is changed into relative humidity by the controller of humidity sensor communication connection, controller；With/
Or it is provided with hygrometer outside cabinet body 1, hygrometer preferably is set near 1 air inlet of cabinet body, to detect the humidity outside cabinet body 1.
Controller and 7 communication connection of first flow control valve, the parameter regulation first that controller is acquired according to humidity sensor can be enabled
The aperture of flow control valve 7 adjusts the cold fluid flow in heat exchanger 3 in turn；The parameter that can also be acquired according to humidity sensor
Manually adjust the aperture of first flow control valve 7.The parameter regulation that user can also acquire according to the outer hygrometer of cabinet body 1 is first-class
The aperture of control valve 7.
The present embodiment additionally provides a kind of frequency conversion tank dewing-proof method based on above-mentioned frequency conversion tank, detects wet in cabinet body 1
Degree increases cold flow in heat exchanger 3 when the humidity in cabinet body 1, which is higher than the humidity outside predetermined value and/or cabinet body 1, is higher than predetermined value
The flow of body and/or the air supply velocity for reducing air supply device 2.
Specifically, the relative humidity in cabinet body 1 is detected by the humidity sensor being set in frequency conversion tank cabinet body 1.Work as phase
When being greater than predetermined value to humidity, increase the flow of cold fluid in heat exchanger 3 by increasing the aperture of first flow control valve 7,
And/or the air supply velocity of air supply device 2 is reduced to improve heat-exchange time.
Hygrometer by being set to 1 air inlet of frequency conversion tank cabinet body detects the relative humidity of frequency conversion tank air inlet.When
When relative humidity is greater than predetermined value, increase the stream of cold fluid in heat exchanger 3 by increasing the aperture of first flow control valve 7
Amount, and/or the air supply velocity of air supply device 2 is reduced to improve heat-exchange time.
And when the humidity in cabinet body 1 is lower than predetermined value, reduce the flow of cold fluid in heat exchanger 3.For example, passing through reduction
The aperture of first flow control valve 7 or reduce air-conditioner set 6 compressor revolving speed and start-stop reduce cold fluid in heat exchanger 3
Flow, maintain cabinet humidity.
Frequency conversion tank dewing-proof method provided in this embodiment keeps temperature, humidity in big-power transducer cabinet controllable at one
In the range of fluctuate, realized while effectively heat dissipation in cabinet it is dry, prevent condensation, ensure that the reliable of frequency conversion tank
Property.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (9)
1. a kind of frequency conversion tank, including cabinet body (1), which is characterized in that air supply device is arranged in the air inlet of the cabinet body (1)
(2) and heat exchanger (3), the cold fluid in the heat exchanger (3) is to the gas for being sent into the cabinet body (1) by the air supply device (2)
Body cooling and dehumidifying；
Gas enters the cabinet body (1) after the heat exchanger (3) are dry and forms positive pressure, by original gas in the cabinet body (1)
Body is discharged by the gap of the cabinet body (1)；
It is provided with air intake passage (5) in the cabinet body (1), the air intake passage (5) is directed to the frequency conversion for that will enter the wind
At the gap of the cabinet and position of frequency conversion tank domestic demand cooling.
2. frequency conversion tank according to claim 1, which is characterized in that the heat exchanger (3) is surface air cooler.
3. frequency conversion tank according to claim 1, which is characterized in that the fluid inlet and air-conditioner set of the heat exchanger (3)
(6) refrigerant exit connection, the fluid outlet of the heat exchanger (3) are connected to the refrigerant inlet of the air-conditioner set (6).
4. frequency conversion tank according to claim 3, which is characterized in that import and the air conditioner in the heat exchanger (3)
First flow control valve (7) are provided on pipeline between the refrigerant exit of group (6).
5. frequency conversion tank according to any one of claims 1 to 4, which is characterized in that be provided in front of the air supply device (2)
Filter device (4).
6. frequency conversion tank according to any one of claims 1 to 4, which is characterized in that be provided with humidity sensor in the cabinet body (1)
Device, the cabinet body (1) are provided with the controller with the humidity sensor communication connection outside；And/or cabinet body (1) peripheral hardware
It is equipped with hygrometer.
7. frequency conversion tank according to any one of claims 1 to 4, which is characterized in that the frequency conversion tank is that photovoltaic directly expels core type
Compressor frequency conversion tank.
8. a kind of frequency conversion tank dewing-proof method based on any frequency conversion tank of claim 1 to 7, which is characterized in that detection institute
The humidity in cabinet body (1) is stated, is higher than when the humidity in the cabinet body (1) is higher than the humidity of predetermined value and/or the cabinet body (1) outside
When predetermined value, increases the flow of the heat exchanger (3) interior cold fluid and/or reduce the air supply velocity of the air supply device (2).
9. frequency conversion tank dewing-proof method according to claim 8, which is characterized in that when the humidity in the cabinet body (1) is low
When predetermined value, reduce the flow of the heat exchanger (3) interior cold fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024872.7A CN106411153B (en) | 2016-11-14 | 2016-11-14 | A kind of frequency conversion tank and frequency conversion tank dewing-proof method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024872.7A CN106411153B (en) | 2016-11-14 | 2016-11-14 | A kind of frequency conversion tank and frequency conversion tank dewing-proof method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106411153A CN106411153A (en) | 2017-02-15 |
| CN106411153B true CN106411153B (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611024872.7A Active CN106411153B (en) | 2016-11-14 | 2016-11-14 | A kind of frequency conversion tank and frequency conversion tank dewing-proof method |
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| CN (1) | CN106411153B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092282A (en) * | 2017-05-24 | 2017-08-25 | 株洲中车时代电气股份有限公司 | A kind of temperature control method of frequency-charger cabinet |
| CN112702886B (en) * | 2019-10-22 | 2022-09-02 | 华为技术有限公司 | Liquid cooling heat dissipation system, heat dissipation control method and control chip |
| US11844194B2 (en) | 2021-06-22 | 2023-12-12 | Rockwell Automation Technologies, Inc. | Power electronic cooling system and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473508A (en) * | 1994-05-31 | 1995-12-05 | At&T Global Information Solutions Company | Focused CPU air cooling system including high efficiency heat exchanger |
| JP2011242011A (en) * | 2010-05-14 | 2011-12-01 | Toshiba Corp | Air conditioning system for server |
| CN202188710U (en) * | 2011-08-02 | 2012-04-11 | 山东信合节能服务有限责任公司 | Circulating cooling processing system for high-voltage frequency converter |
| CN203492281U (en) * | 2013-09-16 | 2014-03-19 | 赵振岩 | Refrigeration-type explosion-proof control cabinet |
| CN203704204U (en) * | 2013-12-05 | 2014-07-09 | 攀枝花钢城集团瑞通制冷设备有限公司 | Air conditioner for electrical cabinet |
| CN104092131A (en) * | 2014-07-28 | 2014-10-08 | 安徽鑫辰电气设备有限公司 | Constant temperature and humidity power transformation cabinet |
| CN104638879A (en) * | 2013-11-08 | 2015-05-20 | 珠海格力电器股份有限公司 | Frequency converter and air conditioner |
| CN104795967A (en) * | 2015-04-03 | 2015-07-22 | 南车株洲电力机车研究所有限公司 | Cooling and dehumidifying device and converter applying same |
| CN206283419U (en) * | 2016-11-14 | 2017-06-27 | 珠海格力电器股份有限公司 | A kind of frequency conversion tank |
-
2016
- 2016-11-14 CN CN201611024872.7A patent/CN106411153B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473508A (en) * | 1994-05-31 | 1995-12-05 | At&T Global Information Solutions Company | Focused CPU air cooling system including high efficiency heat exchanger |
| JP2011242011A (en) * | 2010-05-14 | 2011-12-01 | Toshiba Corp | Air conditioning system for server |
| CN202188710U (en) * | 2011-08-02 | 2012-04-11 | 山东信合节能服务有限责任公司 | Circulating cooling processing system for high-voltage frequency converter |
| CN203492281U (en) * | 2013-09-16 | 2014-03-19 | 赵振岩 | Refrigeration-type explosion-proof control cabinet |
| CN104638879A (en) * | 2013-11-08 | 2015-05-20 | 珠海格力电器股份有限公司 | Frequency converter and air conditioner |
| CN203704204U (en) * | 2013-12-05 | 2014-07-09 | 攀枝花钢城集团瑞通制冷设备有限公司 | Air conditioner for electrical cabinet |
| CN104092131A (en) * | 2014-07-28 | 2014-10-08 | 安徽鑫辰电气设备有限公司 | Constant temperature and humidity power transformation cabinet |
| CN104795967A (en) * | 2015-04-03 | 2015-07-22 | 南车株洲电力机车研究所有限公司 | Cooling and dehumidifying device and converter applying same |
| CN206283419U (en) * | 2016-11-14 | 2017-06-27 | 珠海格力电器股份有限公司 | A kind of frequency conversion tank |
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| Publication number | Publication date |
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| CN106411153A (en) | 2017-02-15 |
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