CN103312125A - Air conditioner, and cooling system and cooling method for centrifugal unit frequency converter in air conditioner - Google Patents
Air conditioner, and cooling system and cooling method for centrifugal unit frequency converter in air conditioner Download PDFInfo
- Publication number
- CN103312125A CN103312125A CN2012100587806A CN201210058780A CN103312125A CN 103312125 A CN103312125 A CN 103312125A CN 2012100587806 A CN2012100587806 A CN 2012100587806A CN 201210058780 A CN201210058780 A CN 201210058780A CN 103312125 A CN103312125 A CN 103312125A
- Authority
- CN
- China
- Prior art keywords
- cooling
- frequency converter
- condenser
- cooling water
- air conditioner
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 79
- 239000000498 cooling water Substances 0.000 claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
-
- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Inverter Devices (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides an air conditioner, and a cooling system and a cooling method of a centrifugal unit frequency converter in the air conditioner. The cooling system includes: a condenser (3) in which a cooling water flow path is provided; and the frequency converter (1) is provided with a cooling flow path, and the cooling flow path is connected with a cooling water flow path in the condenser (3) through a water inlet flow path (5) and a water outlet flow path (6). In the cooling system, the condenser is directly connected with the frequency converter, so that the structure is simple, the water flow pipeline is shortened, the cost is saved, and the whole structure of the unit is not influenced; the consumption of cooling water is controlled by adopting an expansion valve according to the actual temperature of the frequency converter, the cooling effect of the frequency converter is stable and reliable, the frequency converter is not influenced by external conditions, the normal operation of the whole unit is ensured, and meanwhile, the cooling water is saved; the cooling system of the invention is adopted for cooling, and the normal operation of the air conditioner is effectively ensured under the premise of normal and stable operation of the frequency converter.
Description
Technical field
The present invention relates to the air-conditioning system field, cooling system and the cooling means of centrifugal chiller frequency converter in air conditioner, the air conditioner.
Background technology
Compressor is the heart of frequency-conversion air-conditioning system, the rotating speed of compressor directly has influence on the service efficiency of air-conditioning, frequency converter is exactly the control system of controlling and adjust compressor rotary speed, guarantees that therefore the frequency converter normal operation is the prerequisite that realizes the convertible frequency air-conditioner steady operation.But frequency converter can produce heat in work, and along with the raising of motor speed, the heat of its generation also can constantly increase, and this solves the cooling problem of frequency converter with regard to the rational method of needs.The common type of cooling has air-cooled and water-cooled, but the air-cooled demand that is difficult to satisfy real work, and water-cooled of the prior art need to be set up a cover water circulation system, this system process requires high, and complexity is installed, and maintenance workload is large, and in a single day leak, can bring potential safety hazard.
Therefore, for the service behaviour that makes centrifugal chiller is more stable, need the problem that the type of cooling that we seek a kind of frequency converter solves the water circulation system complexity of water-cooled in the prior art badly.
Summary of the invention
The present invention aims to provide cooling system and the cooling means of centrifugal chiller frequency converter in a kind of air conditioner, the air conditioner, to solve the problem of the water circulation system complexity of water-cooled in the prior art.
According to an aspect of the present invention, provide the cooling system of centrifugal chiller frequency converter in a kind of air conditioner, having comprised: condenser wherein is provided with the cooling water stream; Frequency converter wherein is provided with cooling flowing path, and cooling flowing path links to each other with cooling water stream in the condenser with the water outlet stream by the water inlet stream.
Further, above-mentioned condenser also is provided with cooling water inlet pipe road and cooling water outlet pipe road, and the water inlet stream links to each other with the cooling water inlet pipe road, and the water outlet stream links to each other with the cooling water outlet pipe road.
Further, above-mentioned cooling system also comprises expansion valve, and expansion valve is arranged on the water stream.
Further, above-mentioned expansion valve is electric expansion valve.
Further, the cooling flowing path that arranges in the above-mentioned frequency converter is formed by the cooling water pipe of bending type.
According to a further aspect in the invention, also provide a kind of air conditioner, the cooling system of this air conditioner is cooling system of the present invention.
According to another aspect of the invention, also provide the cooling means of centrifugal chiller frequency converter in a kind of air conditioner, be used to the water quench frequency converter from the condenser of air conditioner.
Further, said method may further comprise the steps: make 1) that cooling water partly enters frequency converter in the condenser, and with the frequency converter heat exchange, the cooling frequency converter; 2) make with the frequency converter heat exchange after cooling water flow back to condenser; And 3) flow back to condenser after cooling water flow out of of condenser dispelled the heat, then repeating step 1 again) and step 2).
Further, above-mentioned steps 1) comprising: make in the condenser not the cooling water that carries out the temperature displacement with condensing agent partly enter frequency converter, with the frequency converter heat exchange, the cooling frequency converter.
Further, above-mentioned steps 2) comprising: make with the frequency converter heat exchange after cooling water flow back to condenser, and conflux with the cooling water that carries out heat exchange with cold-producing medium in the condenser.
According to cooling system of the present invention, condenser directly links to each other with frequency converter, and shortening water pipe simple in structure is saved cost, and the unit overall structure is not produced any impact; Adopt the consumption of expansion valve control cooling water according to the actual temperature of frequency converter, the cooling effect of frequency converter is reliable and stable, not affected by external condition, has guaranteed the normal operation of whole unit, simultaneously, has saved cooling water; The frequency converter cooling system of air conditioner adopts cooling system of the present invention to cool off, and under the normal steady operation prerequisite of frequency converter, has effectively guaranteed the normal operation of air conditioner.
Description of drawings
Figure of description is used to provide a further understanding of the present invention, consists of a part of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation according to cooling system of the present invention; And
Fig. 2 shows according to the present invention the cooling line schematic diagram of frequency converter in a kind of specific embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiments of the invention is described in detail, but following embodiment and accompanying drawing only are to understand the present invention, and can not limit the present invention, the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
In a kind of typical execution mode of the present invention, the cooling system of centrifugal chiller frequency converter in a kind of air conditioner is provided, as shown in Figure 1, this cooling system comprises: condenser 3 and frequency converter 1 are provided with the cooling water stream in the condenser 3; Be provided with cooling flowing path in the frequency converter 1, cooling flowing path links to each other with cooling water stream in the condenser 3 by water inlet stream 5 and water outlet stream 6.
The frequency converter 1 of this cooling system and condenser 3 close settings, cooling water in the condenser 3 is directly introduced in the frequency converter 1, shorten the stream of cooling water, greatly weakened the impact of cooling water in the external environment flow path, guaranteed the stable of frequency converter 1 cooling effect.Cooling system of the present invention, condenser directly links to each other with frequency converter, and shortening water pipe simple in structure is saved cost, and the unit overall structure is not produced any impact.
The structure of the cooling flowing path of frequency converter inside adopts design of the prior art to get final product, and preferably, in a kind of specific embodiment of the present invention, the cooling flowing path of frequency converter 1 interior setting is formed by the cooling water pipe 11 of bending type, as shown in Figure 2.The first end of cooling water pipe 11 links to each other with water inlet stream 5, and the second end of cooling water pipe 11 links to each other with water outlet stream 6.This cooling water pipe can prolong the flowing time of cooling water in frequency converter 1, prolongs the heat exchanger time of frequency converter 1 and cooling water, optimizes the cooling effect of frequency converter 1.
In a kind of specific embodiment of the present invention, condenser 3 also is provided with cooling water inlet pipe road 8 and cooling water outlet pipe road 7, and water inlet stream 5 links to each other with cooling water inlet pipe road 8, and water outlet stream 6 links to each other with cooling water outlet pipe road 7.
Internal condensation structure and the condenser of the prior art of condenser 3 of the present invention are basic identical, same condenser 3 is provided with the water inlet of Cooling Water inflow and the delivery port of outflow, be provided with the stream of cold-producing medium in the inside of condenser 3, cooling water and the agent of cold-producing medium heat exchange cooling refrigeration, the present invention is provided with the cooling water inlet pipe road 8 of the cooling water stop that enters condenser 3 in the water inlet of condenser 3, be provided with the cooling water outlet pipe road 7 of the cooling water stop of flowing out condenser 3 at the water outlet of condenser 3.Cooling water inlet pipe road 8 links to each other with water inlet stream 5, is about to enter the part cooling water of condenser 3 by the cooling line of water inlet stream 5 introducing frequency converters, with the cooling frequency converter; Cooling water outlet pipe road 7 links to each other with water outlet stream 6, be about to finish the cooling water of heat exchange by the cooling water outlet pipe road of water outlet stream 6 introducing condensers with frequency converter, along with the cooling water of condenser 3 condensating refrigerants together flows out condenser 3, externally carry out natural heat dissipation, the unit overall structure is not produced any impact, and can be recycling.
Cooling system of the present invention also comprises expansion valve 2, and expansion valve 2 is arranged on water stream 5.Enter the flow of the cooling water of frequency converter 1 according to the adjustment of frequency converter 1, avoided waste and the poor problem of the very few cooling effect of the water yield of the cooling water that hypervolia causes.Can be used for expansion valve of the present invention and include but not limited to heating power expansion valve and electric expansion valve, preferably, expansion valve 2 of the present invention is selected electric expansion valve.In air conditioner, use electronic expansion valve controls more accurate, use more convenient.
In another embodiment of the invention, a kind of air conditioner also is provided, the cooling system of this air conditioner is cooling system of the present invention.
The frequency converter cooling system of air conditioner of the present invention adopts cooling system of the present invention, under the normal steady operation prerequisite of frequency converter, has effectively guaranteed the normal operation of air conditioner.
In another embodiment of the invention, a kind of cooling means of centrifugal chiller frequency converter also is provided, be used to the water quench frequency converter of self cooling condenser.From the temperature stabilization of the cooling water of condenser, stable to the cooling effect of frequency converter.
In a kind of specific embodiment, this cooling means may further comprise the steps: make 1) that cooling water partly enters frequency converter in the condenser, and with the frequency converter heat exchange, the cooling frequency converter; 2) make with the frequency converter heat exchange after cooling water flow back to condenser; And 3) flow back to condenser after cooling water flow out of of condenser dispelled the heat, then repeating step 1 again) and step 2).Utilize cooling means of the present invention, cooling water can be recycling, saving water resource, and the cooling water of finishing heat exchange with frequency converter carries out natural heat dissipation does not need extra refrigerating system.
Preferably, the step 1 of above-described embodiment) comprising: make in the condenser not the cooling water that carries out the temperature displacement with condensing agent partly enter frequency converter, with the frequency converter heat exchange, the cooling frequency converter.Utilize the water quench frequency converter that does not carry out the temperature displacement in the condenser with condensing agent, cooling effect is better.
Preferably, the step 2 of above-described embodiment) comprising: make with the frequency converter heat exchange after cooling water flow back to condenser, and conflux with the cooling water that carries out heat exchange with cold-producing medium in the condenser.Together enter the processing of next process after confluxing with cooling water after the frequency converter heat exchange with cooling water that cold-producing medium carries out heat exchange, method is simple, unnecessary to the frequency converter heat exchange after cooling water process separately, save cost.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the cooling system of centrifugal chiller frequency converter in the air conditioner is characterized in that, comprising:
Condenser (3) wherein is provided with the cooling water stream;
Frequency converter (1) wherein is provided with cooling flowing path, and described cooling flowing path links to each other with cooling water stream in the described condenser (3) with water outlet stream (6) by water inlet stream (5).
2. cooling system according to claim 1, it is characterized in that, described condenser (3) also is provided with cooling water inlet pipe road (8) and cooling water outlet pipe road (7), described water inlet stream (5) links to each other with described cooling water inlet pipe road (8), and described water outlet stream (6) links to each other with described cooling water outlet pipe road (7).
3. cooling system according to claim 1 and 2 is characterized in that, described cooling system also comprises expansion valve (2), and described expansion valve (2) is arranged on the described water inlet stream (5).
4. cooling system according to claim 3 is characterized in that, described expansion valve (2) is electric expansion valve.
5. cooling system according to claim 4 is characterized in that, the cooling flowing path that arranges in the described frequency converter (1) is formed by the cooling water pipe (11) of bending type.
6. an air conditioner comprises cooling system, it is characterized in that, described cooling system is each described cooling system among the claim 1-5.
7. the cooling means of centrifugal chiller frequency converter in the air conditioner is characterized in that, is used to the described frequency converter of water quench from the condenser of described air conditioner.
8. cooling means according to claim 7 is characterized in that, said method comprising the steps of:
1) makes that cooling water partly enters described frequency converter in the described condenser, with described frequency converter heat exchange, cool off described frequency converter;
2) make with described frequency converter heat exchange after cooling water flow back to described condenser; And
3) flow back to described condenser after cooling water flow out of of described condenser dispelled the heat, then repeating said steps 1 again) and described step 2).
9. cooling means according to claim 8 is characterized in that, described step 1) comprising: make in the described condenser not the cooling water that carries out the temperature displacement with condensing agent partly enter described frequency converter, with described frequency converter heat exchange, cool off described frequency converter.
10. cooling means according to claim 8 is characterized in that, described step 2) comprising: make with described frequency converter heat exchange after cooling water flow back to described condenser, and conflux with the cooling water that carries out heat exchange with cold-producing medium in the described condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058780.6A CN103312125B (en) | 2012-03-07 | 2012-03-07 | Air conditioner, and cooling system and cooling method for centrifugal unit frequency converter in air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058780.6A CN103312125B (en) | 2012-03-07 | 2012-03-07 | Air conditioner, and cooling system and cooling method for centrifugal unit frequency converter in air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103312125A true CN103312125A (en) | 2013-09-18 |
| CN103312125B CN103312125B (en) | 2016-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210058780.6A Expired - Fee Related CN103312125B (en) | 2012-03-07 | 2012-03-07 | Air conditioner, and cooling system and cooling method for centrifugal unit frequency converter in air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103312125B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713204A (en) * | 2013-12-11 | 2015-06-17 | 珠海格力电器股份有限公司 | Air conditioning unit and control method |
| CN106546020A (en) * | 2016-10-27 | 2017-03-29 | 重庆美的通用制冷设备有限公司 | Air conditioning system |
| CN110553423A (en) * | 2019-09-17 | 2019-12-10 | 珠海格力电器股份有限公司 | Cooling structure of water chilling unit and water chilling unit |
| CN111133260A (en) * | 2017-10-10 | 2020-05-08 | 江森自控科技公司 | System for cooler electrical cabinet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024002840A2 (en) * | 2022-06-29 | 2024-01-04 | Glen Dimplex Deutschland Gmbh | System comprising a refrigeration circuit, and control module for such a system |
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| CN2645333Y (en) * | 2003-08-19 | 2004-09-29 | 焦作华飞电子电器工业有限公司 | Mining explosion-proof frequency conversion electric controller |
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| CN103134145A (en) * | 2011-11-24 | 2013-06-05 | 珠海格力电器股份有限公司 | Control method of water-cooling water chilling unit and water-cooling water chilling unit |
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Patent Citations (6)
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|---|---|---|---|---|
| CN2645333Y (en) * | 2003-08-19 | 2004-09-29 | 焦作华飞电子电器工业有限公司 | Mining explosion-proof frequency conversion electric controller |
| WO2006071018A1 (en) * | 2004-12-29 | 2006-07-06 | Dongjoo Kim | Air conditioner having cooling and warming functions without outdoor unit |
| CN201667606U (en) * | 2010-01-15 | 2010-12-08 | 珠海格力电器股份有限公司 | Air conditioner with heat radiation function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713204A (en) * | 2013-12-11 | 2015-06-17 | 珠海格力电器股份有限公司 | Air conditioning unit and control method |
| CN106546020A (en) * | 2016-10-27 | 2017-03-29 | 重庆美的通用制冷设备有限公司 | Air conditioning system |
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| EP3534089A4 (en) * | 2016-10-27 | 2019-11-13 | Chongqing Midea General Refrigeration Equipment Co., Ltd. | Air-conditioning system |
| CN111133260A (en) * | 2017-10-10 | 2020-05-08 | 江森自控科技公司 | System for cooler electrical cabinet |
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| TWI789440B (en) * | 2017-10-10 | 2023-01-11 | 美商江森自控科技公司 | Heating, ventilation, air conditioning and refrigeration (hvac&r) system |
| CN110553423A (en) * | 2019-09-17 | 2019-12-10 | 珠海格力电器股份有限公司 | Cooling structure of water chilling unit and water chilling unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103312125B (en) | 2016-06-08 |
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