CN201918886U - Heat dissipating device for frequency converter - Google Patents
Heat dissipating device for frequency converter Download PDFInfo
- Publication number
- CN201918886U CN201918886U CN2010206970066U CN201020697006U CN201918886U CN 201918886 U CN201918886 U CN 201918886U CN 2010206970066 U CN2010206970066 U CN 2010206970066U CN 201020697006 U CN201020697006 U CN 201020697006U CN 201918886 U CN201918886 U CN 201918886U
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- Prior art keywords
- frequency converter
- air
- air channel
- heat abstractor
- heat
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- Expired - Lifetime
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Abstract
The utility model provides a heat dissipating device for a frequency converter. Heat dissipating ports which are reserved for the fan of the frequency converter are arranged at the top end of the frequency converter. The heat dissipating device comprises an air duct which is communicated with the heat dissipating ports in a sealing way, and a centrifugal fan which is arranged in the air duct. An air inlet and an air outlet which are communicated with the air duct are arranged at one end of the air duct, wherein one end of the air duct is far away from the heat radiating ports. The centrifugal fan is arranged on one side of the air outlet and exhausts hot air coming from the frequency converter from the air outlet. Since the externally arranged centrifugal fan is used for replacing the cooling fan of the frequency converter to ventilate the frequency converter and dissipate the heat produced by the frequency converter, the heat dissipating device has the advantages that the energy consumption of the frequency converter is reduced, the efficiency of the frequency converter is improved, impacts on production caused by the fault of the cooling fan of the frequency converter are avoided, and the cost of heat dissipation and the expenses in system maintenance are reduced.
Description
Technical field
The utility model relates to frequency converter heat radiation field, particularly a kind of heat abstractor that is used for frequency converter.
Background technology
Because the power electronic power device in the frequency converter can generate heat in normal running, and these heats all are dissipated in the cabinet inside of frequency converter, make that finally the temperature in the frequency converter raises; Case temperature when simultaneously power electronic power device is in operate as normal can not surpass 85 ℃, if temperature is too high, frequency converter will overtemperature protection, automatic trip.This cabinet internal temperature that just requires must guarantee high voltage converter in design is in normal, stable operating state below 65 ℃ to guarantee high voltage converter.And in-cabinet temperature is lowered, will take some cooling provisions.
Existing radiating mode generally includes following three kinds:
First kind is to use the blower fan that carries that is positioned at the frequency converter top that frequency converter is dispelled the heat, and as shown in Figure 1, frequency converter 101 is positioned at not airtight room 102, and frequency converter 101 tops have centrifugal blower 103.When centrifugal blower 103 work, the hot blast in frequency converter 101 cabinets is discharged beyond the room 102 by air channel 104.Room 102 outer cold airs are mended to room 102 by the ventilation net 105 in room, and mend to frequency converter 102 by the ventilation net 106 on frequency converter 102 cabinet surfaces.Go into discharge with hot blast by the benefit of cold air, realize the circulation of frequency converter.
Present employed frequency converter is mainly used in heavy-polluted industries such as cement, iron and steel, chemical industry, power plant, colliery, so contain a large amount of dusts in the outdoor air, when using frequency converter, just need regularly to clean the ventilation net 105 in room and the ventilation net 106 on frequency converter 102 cabinet surfaces, could guarantee to ventilate and favorable cooling effect.Though so this mode is constructed simply, cost is low, maintenance is big, and can not guarantee fully that dust does not enter in the cabinet, pollute electronic device in the cabinet, shorten its life-span.
In order to solve the problem of dust pollution, also can use second kind of radiating mode at present, with regard to being to use air-conditioning the ambient temperature of frequency converter is lowered the temperature.As shown in Figure 2, frequency converter 101 is positioned at an airtight room 202, and frequency converter 101 tops have centrifugal blower 103.When centrifugal blower 103 work, the hot blast in frequency converter 101 cabinets is expelled in the room 202.Use the air cooling-down in 203 pairs of rooms of air-conditioning 202, the cold air after cooling is mended to frequency converter 102 by the ventilation net 106 on frequency converter 102 cabinet surfaces.The benefit of the cold air by air-conditioning temperature-reducing is gone into the discharge with hot blast, realizes the circulation of frequency converter.
This method of utilizing air-conditioning temperature-reducing, though the working temperature that can guarantee the power electronic power device in the frequency converter cabinet is in the scope of needs, but need when mounted to make an airtight house for frequency converter specially, need again to install the air-conditioning unit additional, cost is higher.
Currently used the third heat dissipating method is to use general sky-water cooling system that frequency converter is dispelled the heat.As shown in Figure 3, general sky-water cooling system is divided into wind path circulation cooling and water route circulation cooling.Frequency converter 101 is positioned at room 302, and frequency converter 101 tops have centrifugal blower 103.When centrifugal blower 103 work, the hot blast in frequency converter 101 cabinets is discharged beyond the room 302 by the air channel 304 of wind path circulation, and is circulated to heat exchanger 303 by air channel 304.Heat exchanger 303 cools to hot blast by cooling water, and the air after cooling is mended to room 302 again.Cold air after cooling is mended to frequency converter 102 by the ventilation net 106 on frequency converter 102 cabinet surfaces.
And after cooling water in the heat exchanger 303 and the hot-air heat exchange, discharge from heat exchanger 303, after cooling off through cooling devices such as cooling towers, input to once more and be used for heat of cooling air in the heat exchanger 303.
Though this endless form has been avoided the interference of dust in the environment, the volume of general sky-water cooling system is bigger, and cost is higher.
From existing above-mentioned three kinds of radiating modes as can be seen, all bigger to the frequency converter required cost that dispels the heat, and can not avoid in the environment dust well to the influence of frequency converter work.
The utility model content
The utility model provides a kind of heat abstractor that is used for frequency converter, and it is simple in structure, low in energy consumption, has not only improved the efficient of frequency converter, and has reduced cost.
The technical scheme that its technical problem of solution of the present utility model is adopted is:
A kind of heat abstractor that is used for frequency converter, described frequency converter top have the thermovent of reserving for the frequency converter blower fan,
This heat abstractor comprises air channel that is communicated with described thermovent sealing and the centrifugal blower that is arranged in the air channel,
End away from thermovent in described air channel has air inlet and the air outlet that is communicated with the air channel,
Described centrifugal blower is positioned at air outlet one side, and the hot-air of self frequency-changing's device is discharged from air outlet in the future.
Preferably, further comprise the valve of a control air channel break-make in the described air channel, described valve is positioned at an end that closes on thermovent.
Preferably, described frequency converter has three thermovents for the reservation of frequency converter blower fan.
Preferably, further comprise the frequency converter chamber, described frequency converter is positioned at the frequency converter chamber interior, and described air channel and centrifugal blower are positioned at the frequency converter outdoor,
Described frequency converter chamber has ventilating opening, and this ventilating opening has filter.
Preferably, described filter is a filter screen.
By above technical scheme as can be known, the utility model uses the peripheral hardware centrifugal blower to replace the cooling blower of frequency converter self that frequency converter is carried out ventilation and heat, energy consumption, the raising frequency converter efficient of frequency converter self have not only been reduced, and avoided because the cooling blower fault of frequency converter self to the influence that production brings, has reduced heat radiation cost and system maintenance expense.
Description of drawings
Fig. 1 is the structural representation of first kind of frequency converter heat abstractor in the prior art.
Fig. 2 is the structural representation of second kind of frequency converter heat abstractor in the prior art.
Fig. 3 is the structural representation of the third frequency converter heat abstractor in the prior art.
Fig. 4 is the structural representation that is used for the heat abstractor of frequency converter of the present utility model.
Embodiment
Main purpose of the present utility model is to provide a kind of heat abstractor that is used for frequency converter, and it is simple in structure, low in energy consumption, has not only improved the efficient of frequency converter, and has reduced cost.
Core concept of the present utility model is: replace the cooling blower of frequency converter self that frequency converter is carried out ventilation and heat by using the peripheral hardware centrifugal blower, energy consumption, the raising frequency converter efficient of frequency converter self have not only been reduced, and avoided because the cooling blower fault of frequency converter self to the influence that production brings, has reduced heat radiation cost and system maintenance expense.
Fig. 4 is the structural representation that is used for the heat abstractor of frequency converter of the present utility model.As shown in Figure 4, identical with existing frequency converter, the top of frequency converter 401 has the thermovent of reserving for the frequency converter blower fan 402, but owing in the utility model, do not use the cooling blower of frequency converter self to dispel the heat, so this thermovent 402 and frequency converter 401 cabinet internal communication, but cooling blower is not installed in this thermovent place.
The heat abstractor that is used for frequency converter of the present utility model comprises air channel 403 that is communicated with thermovent 402 sealings and the centrifugal blower 404 that is positioned at air channel 403.
Wherein, the end away from thermovent in air channel 403 has air inlet 405 and the air outlet 406 that is communicated with air channel 403.Centrifugal blower 404 is positioned at air outlet 406 1 sides, and the negative pressure that produces during its work hot-air of self frequency-changing's device 401 in the future is evacuated to air outlet 406 1 sides from thermovent 402 1 sides, and discharges through air outlet 406.
Wherein, centrifugal blower 404 drives running and control rotary speed direction by motor 407.
Preferably, further comprise the valve 408 of control air channel 403 break-makes in the air channel 403, this valve 408 is positioned at an end that closes on thermovent 402.Valve 408 can when this heat abstractor quits work, can be closed valve 408 by manual control or automatically control, to prevent that dust is from air inlet 405 or air outlet 406, enter in the frequency converter 401 through air channel 403 and thermovent 402.
Generally, frequency converter 401 has three blower fans, and promptly frequency converter 401 tops have three thermovents 402 for the reservation of frequency converter blower fan.Then air channel 403 is communicated with 402 sealings of three thermovents by three straight tube 403a, 403b and 403c respectively, these three straight tube 403a, 403b and 403c are communicated with air channel 403 respectively, and then the hot blast from frequency converter 401 gathers to air channel 403 through three straight tube 403a, 403b and 403c respectively.
Because the heat abstractor that is used for frequency converter of the present utility model belongs to the outer circulation radiating mode, frequency converter will inevitably be subjected to the dust influence of surrounding environment, therefore, preferably, the heat abstractor that is used for frequency converter of the present utility model further comprises frequency converter chamber (not shown), frequency converter 401 is positioned at the frequency converter chamber interior, and air channel 403 and centrifugal blower 404 all are positioned at the frequency converter outdoor, this frequency converter chamber can have a plurality of ventilating openings, each ventilating opening has filter, with Chalk-dust filtering, avoid influencing the work of frequency converter.
Preferably, the filter at each ventilating opening place is a filter screen.
The heat abstractor that is used for frequency converter of the present utility model uses the peripheral hardware centrifugal blower to replace the cooling blower of frequency converter self, has solved the influence that brings to production owing to the cooling blower fault of frequency converter self up hill and dale.In addition, the power of cooling blower of power ratio frequency converter self of peripheral hardware centrifugal blower of circulation of being used to ventilate is much lower, can the reduction system overall power of operation, and centrifugal blower is by the peripheral hardware motor-driven, and do not need to use frequency converter to drive, then the reduction of the integral body of frequency converter load, efficient improve.The reduction of frequency converter overall power has further alleviated the load of heat abstractor again.
Comparing with existing radiating mode, is example with the frequency converter with three cooling blowers, and the power of every typhoon machine is about 1.5KW, and then by using heat abstractor of the present utility model, the power of this frequency converter has reduced 4.5KW.
Comparing with the radiating mode that uses air-conditioning temperature-reducing, is 1400KW * 4%=64KW as the caloric value of frequency converter, and the caloric value during with 80% load running is 64KW * 80%=51.2KW.And the cost that can reach this other industrial air-conditioning of refrigerating capacity level is approximately about 200,000 yuan, and power consumption is at 20KW/h.
Therefore, the heat abstractor that is used for frequency converter of the present utility model can be saved the heat radiation cost in large quantities, and radiating effect is because existing radiating mode.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (5)
1. heat abstractor that is used for frequency converter, described frequency converter top have the thermovent of reserving for the frequency converter blower fan, it is characterized in that,
This heat abstractor comprises air channel that is communicated with described thermovent sealing and the centrifugal blower that is arranged in the air channel,
End away from thermovent in described air channel has air inlet and the air outlet that is communicated with the air channel,
Described centrifugal blower is positioned at air outlet one side, and the hot-air of self frequency-changing's device is discharged from air outlet in the future.
2. the heat abstractor that is used for frequency converter according to claim 1 is characterized in that, further comprises the valve of a control air channel break-make in the described air channel, and described valve is positioned at an end that closes on thermovent.
3. the heat abstractor that is used for frequency converter according to claim 2 is characterized in that, described frequency converter has three thermovents for the reservation of frequency converter blower fan.
4. according to the described heat abstractor that is used for frequency converter of arbitrary claim in the claim 1 to 3, it is characterized in that further comprise the frequency converter chamber, described frequency converter is positioned at the frequency converter chamber interior, described air channel and centrifugal blower are positioned at the frequency converter outdoor,
Described frequency converter chamber has ventilating opening, and this ventilating opening has filter.
5. the heat abstractor that is used for frequency converter according to claim 4 is characterized in that, described filter is a filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206970066U CN201918886U (en) | 2010-12-24 | 2010-12-24 | Heat dissipating device for frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206970066U CN201918886U (en) | 2010-12-24 | 2010-12-24 | Heat dissipating device for frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918886U true CN201918886U (en) | 2011-08-03 |
Family
ID=44418675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206970066U Expired - Lifetime CN201918886U (en) | 2010-12-24 | 2010-12-24 | Heat dissipating device for frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918886U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208624A (en) * | 2016-07-26 | 2016-12-07 | 无锡市优利康电气有限公司 | A kind of dual-cooled converter |
| CN106712538A (en) * | 2016-12-15 | 2017-05-24 | 重庆科川电气有限公司 | Frequency converter cabinet |
-
2010
- 2010-12-24 CN CN2010206970066U patent/CN201918886U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208624A (en) * | 2016-07-26 | 2016-12-07 | 无锡市优利康电气有限公司 | A kind of dual-cooled converter |
| CN106208624B (en) * | 2016-07-26 | 2018-06-22 | 无锡市优利康电气有限公司 | A kind of dual-cooled frequency converter |
| CN106712538A (en) * | 2016-12-15 | 2017-05-24 | 重庆科川电气有限公司 | Frequency converter cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100043 Shijingshan District City, the ancient city of Beijing, West Street, No. 19 small and medium enterprises base Patentee after: Beijing Kang Kang Xin Polytron Technologies Inc Address before: 100043 Shijingshan District City, the ancient city of Beijing, West Street, No. 19 small and medium enterprises base Patentee before: Beijing Hiconics Drive Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
|
| CX01 | Expiry of patent term |