CN106686944A - Liquid cooling frequency converter heat dissipation system - Google Patents
Liquid cooling frequency converter heat dissipation system Download PDFInfo
- Publication number
- CN106686944A CN106686944A CN201611089335.0A CN201611089335A CN106686944A CN 106686944 A CN106686944 A CN 106686944A CN 201611089335 A CN201611089335 A CN 201611089335A CN 106686944 A CN106686944 A CN 106686944A
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- CN
- China
- Prior art keywords
- frequency converter
- refrigerating medium
- heat exchanger
- flow
- external heat
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- 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.)
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Classifications
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- 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
- H05K7/20927—Liquid coolant without phase change
-
- 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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the frequency converter heat dissipation equipment technical field and relates to a liquid cooling frequency converter heat dissipation system. With the liquid cooling frequency converter heat dissipation system adopted, a cooling effect in a frequency converter can be ensured, and an external heat exchanger will not be blocked, and condensation can be avoided. The liquid cooling frequency converter heat dissipation system comprises a frequency converter; the liquid cooling outlet and the liquid cooling inlet of the frequency converter are in circulated connection through a secondary refrigerant recovery device, a secondary refrigerant power circulation device, an external heat exchanger and a secondary refrigerant shunting and balancing device; a by-pass pipeline is arranged between the secondary side outlet of the external heat exchanger and the secondary side inlet of the external heat exchanger; the secondary refrigerant shunting and balancing device is connected with the by-pass pipeline and the secondary side outlet of the external heat exchanger through a three-way valve; the three-way valve is in electrical control connection with a flow control device; the flow control device is used for controlling the opening angle of a valve in the three-way valve so as to realize the flow ratio of the by-pass pipeline and the secondary side outlet of the external heat exchanger; the secondary refrigerant shunting and balancing device is provided with a temperature sensor; and the temperature sensor is in electric control connection with the flow control device.
Description
Technical field
The present invention relates to frequency converter radiating device technical field, the cold frequency converter cooling system of specially a kind of liquid.
Background technology
The cold frequency conversion tank of the built-in liquid of the special unit of large-size air conditioning, the cooling source taken can be divided into the cooling water in air-conditioning and
Chilled water, but where some water sources are poor, the impurity in cooling water is more, easily shines into the blocking of heat exchanger, increases
Frequency of maintenance.The water quality of chilled water preferably, is not easily blocked heat exchanger, but the temperature range of chilled water is 7-12 DEG C, in this water
Under temperature, low temperature is taken in frequency conversion tank and causes to produce dew condensation phenomenon in cabinet by the interior circulation side that can cause the cold frequency converter of common liquid, from
And cause the damage of the cold frequency converter of liquid.
The content of the invention
In order to solve the above problems, the invention provides a kind of cold frequency converter cooling system of liquid, it ensures inside frequency converter
While cooling effect, external heat exchanger will not be blocked and dew condensation phenomenon is produced.
Its technical scheme is such：A kind of cold frequency converter cooling system of liquid, it includes frequency converter, the liquid of the frequency converter
Cold outlet is with the cold import of liquid by the shunting of refrigerating medium retracting device, refrigerating medium power circulating device, external heat exchanger and refrigerating medium
Bascule realizes circulation, it is characterised in that the secondary side outlet of the external heat exchanger enters with the external heat exchanger secondary side
Bypass line is provided between mouthful, the refrigerating medium shunting bascule connects the bypass line and described outer by triple valve
The secondary side outlet of portion's heat exchanger, the triple valve electricly connects volume control device, and the volume control device is used to control institute
The angle for stating the opening of the valve in triple valve realizes the flow-rate ratio of the bypass line and the secondary side outlet of the external heat exchanger
Example, on the refrigerating medium shunting bascule temperature sensor is provided with, and the temperature sensor electricly connects the flow control
Device processed.
It is further characterized by, and the refrigerating medium retracting device is also connected with air bleeding valve, the refrigerating medium retracting device with
Radiating is additionally provided between the refrigerating medium power circulating device unload liquid valve；
The volume control device includes radiator valve and flow regulator, and the radiator valve is controlled including temperature PI
Device, refrigerating medium actual temperature that the temperature PI controller is obtained according to the temperature sensor and the target temperature of refrigerating medium
Difference provides flow control signal to the flow regulator, and the flow regulator adjusts refrigerating in the bypass line
The flow of agent and the secondary side outlet of the external heat exchanger contain the ratio of the flow of cryogen；
The volume control device also includes PI controller burn out detection modules, Flow-rate adjustment failure feedback module and warning mould
Block, the PI controllers burn out detection module and Flow-rate adjustment failure feedback module connection alarm module, the PI controls
Device burn out detection module detects the alarm module when temperature PI controller fails and sends alarm signal, and the flow is adjusted
Section failure feedback module detects the alarm module when flow regulator fails and sends alarm signal.
After structure using the present invention, the refrigerating medium of the higher temperature after frequency converter internal heat out is returned through refrigerating medium
It is divided into two-way after receiving apparatus, refrigerating medium power circulating device, all the way directly by an import of bypass line feeding triple valve,
Another import of triple valve temperature step-down and is sent into another road after external heat exchanger heat exchange, becomes after the mixing of two-way refrigerating medium
Refrigerating medium shunting bascule is sent into for middle temperature, temperature sensor detects mixed refrigerant temperature, and by flow control
The flow proportional of device adjustment two-way realizes that temperature reaches setting value and keeps constant temperature, it is ensured that into the refrigerant temperature of frequency converter
Will not be too low, while realizing frequency converter internal cooling effect, dew condensation phenomenon is not produced, and external heat exchanger can also continue to make
External heat-exchanging is carried out with chilled water, external heat exchanger will not be blocked.
Description of the drawings
Fig. 1 is present system structural representation；
Fig. 2 is volume control device internal control schematic flow sheet.
Specific embodiment
See Fig. 1, shown in Fig. 2, a kind of cold frequency converter cooling system of liquid, it includes frequency converter 1, the cold outlet 2 of liquid of frequency converter 1
It is flat by the shunting of refrigerating medium retracting device 4, refrigerating medium power circulating device 5, external heat exchanger 6 and refrigerating medium with the cold import 3 of liquid
Weighing apparatus device 7 realizes circulation, and between 6 two side-entrances of 6 two side outlets of external heat exchanger and external heat exchanger bypass pipe is provided with
Road 8, refrigerating medium shunting bascule 7 is by 6 two side outlets of the connecting bypass pipeline 8 of triple valve 9 and external heat exchanger, triple valve
9 electricly connect volume control device 10, and volume control device 10 is used to control the angle realization side that the valve in triple valve 9 is opened
Siphunculus road 8 and the flow proportional of 6 two side outlets of external heat exchanger, on refrigerating medium shunting bascule 7 TEMP is provided with
Device 11, temperature sensor 11 electricly connects volume control device 10.Wherein, volume control device 10 includes radiator valve, stream
Quantity regulating device, PI controller burn out detection modules, Flow-rate adjustment failure feedback module and alarm module, radiator valve includes
Temperature PI controller, refrigerating medium actual temperature and the target temperature of refrigerating medium that temperature PI controller is obtained according to temperature sensor 11
The difference of degree provides flow control signal to flow regulator, and flow regulator adjusts the flow of refrigerating medium in bypass line
With the ratio of the flow that the secondary side outlet of external heat exchanger contains cryogen；PI controller burn out detection modules and Flow-rate adjustment fail
Feedback module connects alarm module, and PI controller burn out detection modules detect temperature PI controller failure alarm module and send
Alarm signal, Flow-rate adjustment failure feedback module detects flow regulator failure alarm module and sends alarm signal.This
In PI controllers be a kind of algorithm, be that cooling water flow size is determined by control valve open angle size mode,
Further reach the temperature of control cooling water. by explanation on figure, it is assumed that the water temperature of target outlet is 50 °C.The water temperature of entrance is 20 °
C. the actual water temperature for exporting is 65 °C, then the switch of flow valve can be because the adjustment of PI controllers, tunes up discharge, by outlet
If temperature drops to 50 °C of target. it is contrary go out saliva low to 45 °C of temperature, what PI controllers also can be appropriate turns flow down
Valve reduces discharge, allows water temperature to rise to 50 °C of desired value. and certainly controller also can set for flow valve or temperature detection etc.
Standby failure, does a little corresponding countermeasures. burn out detection module in such as figure etc..
Refrigerating medium retracting device 4 is also connected with air bleeding valve 12, refrigerating medium retracting device 4 and refrigerating medium power circulating device 5 it
Between be additionally provided with radiating and unload liquid valve 13.
Claims (4)
1. the cold frequency converter cooling system of a kind of liquid, it includes frequency converter, and the cold outlet of liquid of the frequency converter passes through with the cold import of liquid
Refrigerating medium retracting device, refrigerating medium power circulating device, external heat exchanger and refrigerating medium shunting bascule realizes circulation, and it is special
Levy and be, between the secondary side outlet of external heat exchanger and the secondary side-entrance of the external heat exchanger bypass line is provided with,
The refrigerating medium shunting bascule connects the bypass line and the secondary side outlet of the external heat exchanger, institute by triple valve
State triple valve and electricly connect volume control device, the volume control device be used to controlling in the triple valve valve is opened
Angle realizes the flow proportional of the bypass line and the secondary side outlet of the external heat exchanger, the refrigerating medium shunting balance dress
Put and temperature sensor is installed, the temperature sensor electricly connects the volume control device.
2. a kind of cold frequency converter cooling system of liquid according to claim 1, it is characterised in that the refrigerating medium retracting device
Air bleeding valve is also connected with, radiating is additionally provided between the refrigerating medium retracting device and the refrigerating medium power circulating device and is unloaded liquid
Valve.
3. a kind of cold frequency converter cooling system of liquid according to claim 1, it is characterised in that the volume control device bag
Radiator valve and flow regulator are included, the radiator valve includes temperature PI controller, the temperature PI controller root
The refrigerating medium actual temperature obtained according to the temperature sensor and the difference of the target temperature of refrigerating medium provide flow control signal
To the flow regulator, the flow regulator adjusts the flow of refrigerating medium in the bypass line and changes with the outside
The secondary side outlet of hot device contains the ratio of the flow of cryogen.
4. the cold frequency converter cooling system of a kind of liquid according to claim 3, it is characterised in that the volume control device is also
Including PI controller burn out detection modules, Flow-rate adjustment failure feedback module and alarm module, the PI controllers burn out detection
Module and Flow-rate adjustment failure feedback module connection alarm module, the PI controllers burn out detection module detects described
The alarm module sends alarm signal when temperature PI controller fails, and the Flow-rate adjustment failure feedback module detects described
The alarm module sends alarm signal when flow regulator fails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611089335.0A CN106686944A (en) | 2016-12-01 | 2016-12-01 | Liquid cooling frequency converter heat dissipation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611089335.0A CN106686944A (en) | 2016-12-01 | 2016-12-01 | Liquid cooling frequency converter heat dissipation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106686944A true CN106686944A (en) | 2017-05-17 |
Family
ID=58867112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611089335.0A Pending CN106686944A (en) | 2016-12-01 | 2016-12-01 | Liquid cooling frequency converter heat dissipation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106686944A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107466187A (en) * | 2017-08-08 | 2017-12-12 | 广东申菱环境***股份有限公司 | A kind of liquid cooling heat-exchanger and its control method |
| CN108323118A (en) * | 2018-03-06 | 2018-07-24 | 北京中热能源科技有限公司 | The liquid cooling system of a kind of electronic equipment |
| CN111735167A (en) * | 2020-07-23 | 2020-10-02 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
| CN112105238A (en) * | 2020-09-24 | 2020-12-18 | 安擎(天津)计算机有限公司 | Liquid cooling system for server and control method thereof |
| CN113905594A (en) * | 2021-10-28 | 2022-01-07 | 珠海格力电器股份有限公司 | Heat dissipation control method and device of frequency converter power module, medium and radiator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2086303A2 (en) * | 2007-12-27 | 2009-08-05 | ABB Oy | Air dehumidifier for frequency converter arrangement |
| CN201789409U (en) * | 2010-08-02 | 2011-04-06 | 麦克维尔空调制冷(武汉)有限公司 | Frequency converter chilled water cooling device |
| CN102368659A (en) * | 2011-09-30 | 2012-03-07 | 广州高澜节能技术股份有限公司 | Closed type circulating water cooling system of explosion-proof frequency converter applied to coal industry |
| CN104377938A (en) * | 2014-12-01 | 2015-02-25 | 南阳防爆集团电气***工程有限公司 | Converter cooling system |
-
2016
- 2016-12-01 CN CN201611089335.0A patent/CN106686944A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2086303A2 (en) * | 2007-12-27 | 2009-08-05 | ABB Oy | Air dehumidifier for frequency converter arrangement |
| CN201789409U (en) * | 2010-08-02 | 2011-04-06 | 麦克维尔空调制冷(武汉)有限公司 | Frequency converter chilled water cooling device |
| CN102368659A (en) * | 2011-09-30 | 2012-03-07 | 广州高澜节能技术股份有限公司 | Closed type circulating water cooling system of explosion-proof frequency converter applied to coal industry |
| CN104377938A (en) * | 2014-12-01 | 2015-02-25 | 南阳防爆集团电气***工程有限公司 | Converter cooling system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107466187A (en) * | 2017-08-08 | 2017-12-12 | 广东申菱环境***股份有限公司 | A kind of liquid cooling heat-exchanger and its control method |
| CN107466187B (en) * | 2017-08-08 | 2023-08-08 | 广东申菱环境***股份有限公司 | Liquid cooling heat exchange device and control method thereof |
| CN108323118A (en) * | 2018-03-06 | 2018-07-24 | 北京中热能源科技有限公司 | The liquid cooling system of a kind of electronic equipment |
| CN111735167A (en) * | 2020-07-23 | 2020-10-02 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
| CN112105238A (en) * | 2020-09-24 | 2020-12-18 | 安擎(天津)计算机有限公司 | Liquid cooling system for server and control method thereof |
| CN113905594A (en) * | 2021-10-28 | 2022-01-07 | 珠海格力电器股份有限公司 | Heat dissipation control method and device of frequency converter power module, medium and radiator |
| CN113905594B (en) * | 2021-10-28 | 2023-03-14 | 珠海格力电器股份有限公司 | Heat dissipation control method and device of frequency converter power module, medium and air conditioner |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |