CN104410250A - Double-path cooling type frequency converter cooling system - Google Patents

Double-path cooling type frequency converter cooling system Download PDF

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Publication number
CN104410250A
CN104410250A CN201410820805.0A CN201410820805A CN104410250A CN 104410250 A CN104410250 A CN 104410250A CN 201410820805 A CN201410820805 A CN 201410820805A CN 104410250 A CN104410250 A CN 104410250A
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CN
China
Prior art keywords
water
cooling
heat exchanger
circulating
water inlet
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.)
Pending
Application number
CN201410820805.0A
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Chinese (zh)
Inventor
肖远龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Energy-Conservation Science And Technology Ltd Is Willing In Hunan Changsha
Original Assignee
Energy-Conservation Science And Technology Ltd Is Willing In Hunan Changsha
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Energy-Conservation Science And Technology Ltd Is Willing In Hunan Changsha filed Critical Energy-Conservation Science And Technology Ltd Is Willing In Hunan Changsha
Priority to CN201410820805.0A priority Critical patent/CN104410250A/en
Publication of CN104410250A publication Critical patent/CN104410250A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20927Liquid coolant without phase change

Abstract

The invention discloses a double-path cooling type frequency converter cooling system. The system comprises air path circulation and water path circulation, wherein in the air path circulation, a fan arranged at the top of a frequency converter cabinet is connected with the upper end of an air path of a heat exchanger through an air channel; the lower end of the air path of the heat exchanger is communicated with the inside of a power distribution room through the air channel; in the water path circulation, the upper end of a water path of the heat exchanger is connected with a water charging pipe of a cooling tower and a water charging pipe of a water cooling cabinet by a water discharging main pipe; a water discharging pipe of the cooling tower and the water charging pipe of the water cooling cabinet are joined together at a water inlet of the water cooling cabinet and then are connected with the water inlet of the water cooling cabinet; the water discharging end of the water cooling cabinet is connected with the lower end of the water path of the heat exchanger by a water returning main pipe; a circulating water pump is mounted on the water returning main pipe.

Description

The frequency converter cooling system of two-way cooling
Technical field
The present invention relates to cooling system, particularly relate to the frequency converter cooling system of a kind of two-way cooling.
Background technology
Frequency converter is application converter technique and microelectric technique, controls the electric control appliance of alternating current motor by changing machine operation supply frequency mode.Frequency converter has variable speed energy saving, overload protection, realizes soft starter for motor, reduces motor reactive power, conveniently controls, and makes the advantage that control system is simplified.Due to frequency converter in use generation current, the evolution of heat, makes the temperature of power distribution room higher than outdoor temperature a lot, particularly in summer, the temperature of power distribution room can be higher, and the normal operation of too high temperature entail dangers to equipment, therefore frequency converter is all with cooling system.At present, the cooling of frequency converter generally adopts and is top-loaded with blower fan at frequency-charger cabinet, and the mode that hot blast is directly arranged outward by air channel is carried out by blower fan, and the air intake of equipment then utilizes outdoor natural air, and this scheme is simple, easy.But for metallurgical, open a mine, the enterprise such as steel-making, because outdoor environment is poor, dust plugs the screen pack on the screen pack of power distribution room air inlet and equipment more, cause intake not enough, do not reach desirable cooling-down effect, make device temperature significantly increase, jeopardize the normal operation of equipment.Once frequency conversion equipment breaks down, the normal production of enterprise can be affected, cause economic loss to enterprise, and the workload of cleaned filter screen is quite large.
Summary of the invention
The object of the present invention is to provide the frequency converter cooling system that a kind of two-way cools, to overcome above-mentioned shortcoming.
For achieving the above object, technical solution of the present invention is: a kind of frequency converter cooling system of two-way cooling, comprise wind path circulation and waterway circulating, it is characterized in that: heat exchanger is placed in outside power distribution room wall, in wind path circulation, the blower fan on frequency-charger cabinet top is connected with described heat exchanger wind path upper end by air channel, heat exchanger wind path lower end is communicated with power distribution room indoor by air channel, hot-air after cooling frequency converter is discharged from cabinet top by blower fan, heat exchanger is circulated to by air channel, cooling water is connected with in heat exchanger, thus air is cooled, air after cooling again enters frequency converter and cools frequency converter, so carry out circulating cooling.
In waterway circulating, upper end, heat exchanger water route is connected with Water-cooled cabinet water inlet pipe with cooling tower water inlet pipe by main water outlet pipe, described main water outlet pipe is equipped with filter successively, thermometer, Pressure gauge, flowmeter, gate valve, flange, described cooling tower water inlet pipe and Water-cooled cabinet water inlet pipe are equipped with gate valve successively, flange, cooling tower outlet pipe and Water-cooled cabinet water inlet pipe converge in Water-cooled cabinet water inlet, then be connected with Water-cooled cabinet water inlet, described cooling tower outlet pipe is equipped with gate valve successively, flange, described Water-cooled cabinet water side is connected with lower end, heat exchanger water route by the female pipe of backwater, the female pipe of described backwater is equipped with circulating water pump, the cooling water that temperature is lower enters heat exchanger by lower end, heat exchanger water route, after circulating air heat exchange, flowed out by upper end, heat exchanger water route, cooled to cooling tower or Water-cooled cabinet by the cooling water flow heated, cooling water after cooling again enters heat exchanger through circulating water pump and cools circulating air, circulation like this.
Further, when water temperature cools lower than adopting outer loop water heat exchanger when 33 DEG C, when water temperature cools higher than adopting the water inlet of the recirculated water heat exchanger of internal cooling tower when 33 DEG C.
The invention has the beneficial effects as follows: the temperature that can effectively reduce frequency converter and power distribution room, ensure that the normal work of frequency converter equipment, alleviate the labour intensity of workman.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention and embodiment thereof are described in further detail.
As shown in Figure 1, heat exchanger 4 is placed in outside power distribution room wall, in wind path circulation, the blower fan 2 on frequency converter 1 cabinet top is connected with described heat exchanger 4 wind path upper end by air channel 3, heat exchanger 4 wind path lower end is connected with at the bottom of frequency converter 1 cabinet by air channel 5, hot-air after cooling frequency converter 1 is discharged from cabinet top by blower fan 2, heat exchanger 4 is circulated to by air channel 3, cooling water is connected with in heat exchanger 4, thus air is cooled, air after cooling again enters frequency converter 1 pair of frequency converter 1 and cools, and so carries out circulating cooling.
In waterway circulating, upper end, heat exchanger 4 water route is connected with Water-cooled cabinet 8 water inlet pipe with cooling tower 7 water inlet pipe by main water outlet pipe 6, described main water outlet pipe 6 is equipped with filter successively, thermometer, Pressure gauge, flowmeter, gate valve, flange, described cooling tower 7 water inlet pipe and Water-cooled cabinet 8 water inlet pipe are equipped with gate valve successively, flange, cooling tower 7 outlet pipe and Water-cooled cabinet 8 water inlet pipe converge in Water-cooled cabinet 8 water inlet, then be connected with Water-cooled cabinet 8 water inlet, described cooling tower 7 outlet pipe is equipped with gate valve successively, flange, described Water-cooled cabinet 8 water side is connected with lower end, heat exchanger 4 water route by the female pipe 9 of backwater, the female pipe 9 of described backwater is equipped with circulating water pump 10, the cooling water that temperature is lower enters heat exchanger by lower end, heat exchanger water route, after circulating air heat exchange, flowed out by upper end, heat exchanger water route, cooled to cooling tower or Water-cooled cabinet by the cooling water flow heated, cooling water after cooling again enters heat exchanger through circulating water pump and cools circulating air, circulation like this.
Further, when water temperature cools lower than adopting outer loop water heat exchanger when 33 DEG C: close the gate valve on cooling tower 7 water inlet pipe and outlet pipe, the cooling water that temperature is lower enters heat exchanger by lower end, heat exchanger water route, after circulating air heat exchange, flowed out by upper end, heat exchanger water route, flowed into Water-cooled cabinet by the cooling water heated cooled by main water outlet pipe, Water-cooled cabinet water inlet pipe, cooling water after cooling again enters heat exchanger through circulating water pump and cools circulating air, so circulates.
Further, when water temperature cools higher than adopting the water inlet of the recirculated water heat exchanger of internal cooling tower when 33 DEG C: close the gate valve on Water-cooled cabinet water inlet pipe, the cooling water that temperature is lower enters heat exchanger by lower end, heat exchanger water route, after circulating air heat exchange, flowed out by upper end, heat exchanger water route, by the cooling water that heats by main water outlet pipe, cooling tower water inlet pipe flows into cooling tower and cools, flow into Water-cooled cabinet by cooling tower outlet pipe again to cool further, cooling water after cooling again enters heat exchanger through circulating water pump and cools circulating air, circulation like this.

Claims (4)

1. the frequency converter cooling system of two-way cooling, comprise wind path circulation and waterway circulating, its feature is being: heat exchanger is placed in outside power distribution room wall, in wind path circulation, the blower fan on frequency-charger cabinet top is connected with described heat exchanger wind path upper end by air channel, and heat exchanger wind path lower end is communicated with power distribution room indoor by air channel; In waterway circulating, upper end, heat exchanger water route is connected with Water-cooled cabinet water inlet pipe with cooling tower water inlet pipe by main water outlet pipe, cooling tower outlet pipe and Water-cooled cabinet water inlet pipe converge in Water-cooled cabinet water inlet, then be connected with Water-cooled cabinet water inlet, described Water-cooled cabinet water side is connected with lower end, heat exchanger water route by the female pipe of backwater, and the female pipe of described backwater is equipped with circulating water pump.
2. the frequency converter cooling system of two-way cooling according to claim 1, its feature is being: described main water outlet pipe is equipped with filter, thermometer, Pressure gauge, flowmeter, gate valve, flange successively, described cooling tower water inlet pipe, outlet pipe and Water-cooled cabinet water inlet pipe are equipped with gate valve, flange successively, the female pipe of described backwater is equipped with circulating water pump.
3. the frequency converter cooling system of two-way cooling according to claim 1, its feature is being: when water temperature cools lower than adopting outer loop water heat exchanger when 33 DEG C: close the gate valve on cooling tower 7 water inlet pipe and outlet pipe, the cooling water that temperature is lower enters heat exchanger by lower end, heat exchanger water route, after circulating air heat exchange, flowed out by upper end, heat exchanger water route, by the cooling water that heats by main water outlet pipe, Water-cooled cabinet water inlet pipe flows into Water-cooled cabinet and cools, cooling water after cooling again enters heat exchanger through circulating water pump and cools circulating air, circulation like this.
4. the frequency converter cooling system of two-way cooling according to claim 1, its feature is being: when water temperature cools higher than adopting the water inlet of the recirculated water heat exchanger of internal cooling tower when 33 DEG C: close the gate valve on Water-cooled cabinet water inlet pipe, the cooling water that temperature is lower enters heat exchanger by lower end, heat exchanger water route, after circulating air heat exchange, flowed out by upper end, heat exchanger water route, by the cooling water that heats by main water outlet pipe, cooling tower water inlet pipe flows into cooling tower and cools, flow into Water-cooled cabinet by cooling tower outlet pipe again to cool further, cooling water after cooling again enters heat exchanger through circulating water pump and cools circulating air, circulation like this.
CN201410820805.0A 2014-12-26 2014-12-26 Double-path cooling type frequency converter cooling system Pending CN104410250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410820805.0A CN104410250A (en) 2014-12-26 2014-12-26 Double-path cooling type frequency converter cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410820805.0A CN104410250A (en) 2014-12-26 2014-12-26 Double-path cooling type frequency converter cooling system

Publications (1)

Publication Number Publication Date
CN104410250A true CN104410250A (en) 2015-03-11

Family

ID=52647853

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410820805.0A Pending CN104410250A (en) 2014-12-26 2014-12-26 Double-path cooling type frequency converter cooling system

Country Status (1)

Country Link
CN (1) CN104410250A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
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
CN106374726A (en) * 2016-11-28 2017-02-01 重庆科川电气有限公司 Frequency converter capable of water cooling cyclic heat radiation
CN106549555A (en) * 2016-12-15 2017-03-29 重庆科川电气有限公司 A kind of automatic heat radiation frequency converter
CN106546713A (en) * 2015-09-18 2017-03-29 亚申科技研发中心(上海)有限公司 Wax content in crude oil analyzer
CN109698604A (en) * 2017-10-20 2019-04-30 江西南磁电气有限公司 A kind of radiating structure of frequency converter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106546713A (en) * 2015-09-18 2017-03-29 亚申科技研发中心(上海)有限公司 Wax content in crude oil analyzer
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
CN106374726A (en) * 2016-11-28 2017-02-01 重庆科川电气有限公司 Frequency converter capable of water cooling cyclic heat radiation
CN106549555A (en) * 2016-12-15 2017-03-29 重庆科川电气有限公司 A kind of automatic heat radiation frequency converter
CN109698604A (en) * 2017-10-20 2019-04-30 江西南磁电气有限公司 A kind of radiating structure of frequency converter

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Application publication date: 20150311