CN207019359U - A kind of water-cooling system of Direct Air-Cooled fan frequency converter group - Google Patents
A kind of water-cooling system of Direct Air-Cooled fan frequency converter group Download PDFInfo
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- CN207019359U CN207019359U CN201720593355.5U CN201720593355U CN207019359U CN 207019359 U CN207019359 U CN 207019359U CN 201720593355 U CN201720593355 U CN 201720593355U CN 207019359 U CN207019359 U CN 207019359U
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- water
- frequency converter
- cooling
- cooling system
- converter group
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Abstract
The utility model provides a kind of water-cooling system of Direct Air-Cooled fan frequency converter group, the frequency converter group of the Direct Air-Cooled blower fan is located in Transducer Room, the water-cooling system includes several water coolers positioned at Transducer Room and that the cooling water recirculation system with power plant is connected, each water cooler is connected by a connection air channel with the air channel of confluxing being located above frequency converter, including a heat exchanger；Each air channel of confluxing collects the hot blast from several frequency converters and leads to water cooler, and hot blast is cooled to cold wind using the cooling water of cooling water recirculation system and is emitted into Transducer Room by water cooler.
Description
Technical field
The utility model belongs to Direct Air-Cooling in Thermal Power Plants equipment cooling technology field, and in particular to be it is a kind of directly
The water-cooling system of Air-Cooling Blower Variable-Frequency device group.
Background technology
China is the country that water resource extremely lacks, and water resource lacks has influence on the daily of people to a certain extent
Life and industrial and agricultural production process.In the rich coal water-deficient area in the north, power station air cooling technology obtains fast development, can be certain
The puzzlement of water resources problems is broken away from degree.The construction and operation of air cooling power station based on air cooling technique have greatly economic imitate
Benefit and social benefit.
Direct air cooling system is because equipment is few, simple system, capital expenditure is less, occupation of land is small, using than wide.Directly
The force ventilation of air cooling system generally use cools down, and the direct air cooling system of usual 2 × 300MW unit needs to be equipped with 56 to 64
Platform large fan, a frequency converter is equipped with per Fans.More frequency converters are arranged in a Transducer Room, form a set pattern
The frequency converter group of mould.During summer high temperature weather, frequency converter group's heat dissipation capacity that multiple frequency converters are formed is big, causes air conditioner refrigerating can not
Meet frequency converter group's cooling requirements, the frequent overtemperature alarm of frequency converter, influence the service behaviour of frequency converter, cause section components to damage
It is bad, so that frequency converter can not work, operation and the unit generation power of direct air cooling system are had a strong impact on, frequency converter group's dissipates
Heat problem has turned into one of the problem of influence power plant safety stable and high effective operation.
At present, the operating efficiency of various frequency converters is usually 96%~98%, wherein 2%~4% power attenuation is main
It is dissipated in the form of heat in surrounding enviroment., will be straight if the environment temperature of frequency converter computer room can not be solved timely and effectively
The safety for jeopardizing transducer body is connect, this requires must assure that the temperature of frequency converter computer room at -5 DEG C~40 DEG C, to ensure to become
Frequency device is long-term, stably, Effec-tive Function.
Conventional inverter device is typically cooled using air blast cooling, sets certain heat-dissipating space distance and air-cooled passage, frequency conversion
Air-conditioning is set in device room, for adjusting indoor temperature.But it is disadvantageous in that：Air-conditioning regulation indoor temperature in Transducer Room
Ability, energy consumption is big, and air cooling effect is bad, in summer high temperature weather, it is difficult to effectively reduces temperature in frequency converter, still can not
Frequency converter overtemperature alarm is avoided, performance and section components, which are formed, to be influenceed, so as to work.
Utility model content
To overcome above-mentioned deficiency, the utility model provides a kind of water-cooling system of Direct Air-Cooled fan frequency converter group, uses
Water-cooling pattern cools down to frequency converter group, ensures that frequency converter indoor temperature is not higher than 40 DEG C, it is ensured that frequency converter group is steady in a long-term
Operation, the system radiating effect is good, and operating cost is low.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of water-cooling system of Direct Air-Cooled fan frequency converter group, the frequency converter group of the Direct Air-Cooled blower fan are located at frequency converter
Interior, the water-cooling system include several water coolers positioned at Transducer Room and that the cooling water recirculation system with power plant is connected,
Each water cooler is connected by a connection air channel with the air channel of confluxing being located above frequency converter, including a heat exchanger；It is each
Air channel of confluxing collects the hot blast from several frequency converters and leads to water cooler, and water cooler utilizes the cooling of cooling water recirculation system
Hot blast is cooled to cold wind and is emitted into Transducer Room by water.
Further, water cooler is connected by a water supply line and a water return pipeline with cooling water recirculation system.
Further, water cooler includes a booster fan, and cold wind is emitted into Transducer Room by the booster fan.
Further, the wall of water cooler against Transducer Room is placed.
Further, connection air channel is connected to the middle part in air channel of confluxing.
Further, the hot blast from 6 to 8 frequency converters is collected in each air channel of confluxing.
The beneficial effects of the utility model are：
The heat that the system distributes some frequency converters confluxed in the form of hot blast air channel collection, lead to water cooler and enter
Row heat exchange, water cooler are taken away heat using cooling water, and cold wind is flow back to interior by the booster fan in water cooler.Water cooler
Radiating efficiency is approximately 150~300 times of air natural cooling heat exchange efficiency, can strengthen the radiating of frequency converter group using water cooler
Effect.The initial temperature that cooling water enters water cooler is less than 30 DEG C, and the temperature control of the cold wind of discharge is less than 40 DEG C, will can become
Environment temperature in frequency device room is adjusted to less than 40 DEG C, so as to meet requirement that frequency converter group runs to environment.Solution summer dissipates
Hot difficult problem, be advantageous to the long-period stable operation of frequency converter group, increase the service life.The system is using the cheap electricity of cost
Factory's recirculated cooling water, it can recycle, operating cost is low, does not use air-conditioning regulation indoor temperature, can save a large amount of electricity
Take, energy-conservation and economic benefit are obvious.
Brief description of the drawings
Fig. 1 is the water-cooling system top view in embodiment.
Fig. 2 is the water-cooling system side view in embodiment.
In figure：1- water coolers, 2- connections air channel, 3- conflux air channel, 4- water supply lines, 5- water return pipelines, 6- booster fans,
7- frequency converters.
Embodiment
To enable features described above and advantage of the present utility model to become apparent, special embodiment below, and appended by cooperation
Figure is described in detail below.
The present embodiment discloses a kind of water-cooling system of Direct Air-Cooled fan frequency converter group, (is regarded as shown in Figure 1 and Figure 2 for simplification
Scheme, only make a mark for identical part in figure), including water cooler 1, connection air channel 2 and air channel 3 of confluxing, a water cooling
The hot blast that device 1 is generally responsible for 6 to 8 frequency converters is collected, and because the frequency converter 7 of the present embodiment is 28, can be related to according to the sum
And 4 water coolers 1, each water cooler 1 are responsible for 7 frequency converters 7.The import of water cooler 1 connects a water supply line 4, outlet connection one
Water return pipeline 5, realize cooling water disengaging circulation in water cooler 1.The wall of water cooler 1 against Transducer Room is placed, and one can
Save the interior space, two conveniently accessible cooling waters.Water cooler 1 connects air channel 3 of confluxing by connecting air channel 2, and connection air channel 2 connects
The middle part in air channel 3 of confluxing is connected to, is so easy to balance to collect the hot blast that air channel 3 is confluxed that confluxes.The air channel 3 of confluxing is located at frequency converter
7 tops, actual upconverter 7 are installed in frequency conversion tank, and air channel 3 of confluxing is located above frequency conversion tank, and this patent illustrates to simplify, will
Frequency conversion tank is regarded as a part for frequency converter 7, referred to as frequency converter 7, it should thus be appreciated that.
The heat of frequency converter 7 comes from its heater element, the heat for being distributed heater element by its internal axial flow blower
Taken out of in the form of hot blast, hot blast is collected in air channel 3 of confluxing, and water cooler 1, the heat exchanger of water cooler 1 are sent into by connecting air channel 2
Hot blast is cooled to cold wind by (not shown), then is discharged into by booster fan 6 in Transducer Room, forms indoor air circulation.This is
System is connected with the power plant cooling water circulatory system, and cooling medium is used as using its cooling water, it is desirable to which cooling water meets less than 30 DEG C of temperature
Scope is spent, the heat of hot blast in heat exchanger is constantly taken away by cooling water, so as to reach the purpose for reducing indoor temperature, and room
Interior cold wind is introduced by the axial flow blower in frequency converter 7, so as to reduce the temperature of frequency converter 7.
It is related to two circulations as known from the above, is wind circulation and cooling water circulation respectively：
Wind circulates：Axial flow blower → heater element → hot blast → air channel of confluxing inside cold wind in Transducer Room → frequency converter →
Connect air channel → water cooler → cold wind → booster fan → Transducer Room (see arrow in Fig. 2).
Cooling water circulation：Cooling water recirculation system → water supply line → water cooler → water return pipeline → cooling water circulation system
System.
Claims (6)
1. a kind of water-cooling system of Direct Air-Cooled fan frequency converter group, the frequency converter group of the Direct Air-Cooled blower fan is located at Transducer Room
It is interior, it is characterised in that the water-cooling system include positioned at Transducer Room and the cooling water recirculation system with power plant be connected it is some
Individual water cooler, each water cooler be connected by a connection air channel and one above the frequency converter air channel of confluxing, including a hot friendship
Parallel operation；Each air channel of confluxing collects the hot blast from several frequency converters and leads to water cooler, and water cooler utilizes cooling water circulation
Hot blast is cooled to cold wind and is emitted into Transducer Room by the cooling water of system.
A kind of 2. water-cooling system of Direct Air-Cooled fan frequency converter group according to claim 1, it is characterised in that water cooler
It is connected by a water supply line and a water return pipeline with cooling water recirculation system.
A kind of 3. water-cooling system of Direct Air-Cooled fan frequency converter group according to claim 1, it is characterised in that water cooler
Including a booster fan, cold wind is emitted into Transducer Room by the booster fan.
A kind of 4. water-cooling system of Direct Air-Cooled fan frequency converter group according to claim 1, it is characterised in that water cooler
Wall against Transducer Room is placed.
A kind of 5. water-cooling system of Direct Air-Cooled fan frequency converter group according to claim 1, it is characterised in that connection wind
Road is connected to the middle part in air channel of confluxing.
A kind of 6. water-cooling system of Direct Air-Cooled fan frequency converter group according to claim 1, it is characterised in that each remittance
Flow air channel and collect the hot blast from 6 to 8 frequency converters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720593355.5U CN207019359U (en) | 2017-05-25 | 2017-05-25 | A kind of water-cooling system of Direct Air-Cooled fan frequency converter group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720593355.5U CN207019359U (en) | 2017-05-25 | 2017-05-25 | A kind of water-cooling system of Direct Air-Cooled fan frequency converter group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207019359U true CN207019359U (en) | 2018-02-16 |
Family
ID=61475621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720593355.5U Active CN207019359U (en) | 2017-05-25 | 2017-05-25 | A kind of water-cooling system of Direct Air-Cooled fan frequency converter group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207019359U (en) |
-
2017
- 2017-05-25 CN CN201720593355.5U patent/CN207019359U/en active Active
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