CN109405367A - water chilling unit and cooling device - Google Patents
water chilling unit and cooling device Download PDFInfo
- Publication number
- CN109405367A CN109405367A CN201811266786.6A CN201811266786A CN109405367A CN 109405367 A CN109405367 A CN 109405367A CN 201811266786 A CN201811266786 A CN 201811266786A CN 109405367 A CN109405367 A CN 109405367A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- cooling
- refrigerant
- cooling device
- unit
- 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
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000003507 refrigerant Substances 0.000 claims abstract description 41
- 239000002826 coolant Substances 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 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
- F25B41/00—Fluid-circulation arrangements
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to a water chilling unit and a cooling device, wherein the cooling device comprises: a refrigerant unit into which a refrigerant is introduced; the cooling unit is used for installing a frequency converter and is filled with cooling solution; the refrigerant unit and the cold carrying unit are both communicated with the heat exchanger, and the refrigerant and the cooling solution flow in the heat exchanger for heat exchange; the cooling solution circularly flows between the heat exchanger and the cold carrying unit, and after absorbing a cold source of the refrigerant in the heat exchanger, the cold source is transferred to the frequency converter. Among the above-mentioned cooling device, absorb the cold source of refrigerant through cooling solution, then transmit the cold source for condenser 12 and cool off the heat dissipation, cooling solution is closed circulation between heat exchanger and year cold unit, and not circulate with external heat transfer, can not bring external impurity into, prevent to carry and influence heat exchange efficiency, heat transfer effect preferred after cold unit and the heat exchanger internal scaling.
Description
Technical field
The present invention relates to technical field of heat exchange, more particularly to water cooler and cooling device.
Background technique
The water cooler of general High cooling power, operation power is big, and used frequency converter calorific value is more, and it is cold to rely solely on air
But, it is difficult to which frequency converter temperature cools down.Traditionally, the cooling means of water cooler frequency converter has a water cooling, and when water cooling is direct
By the cooling water of unit, takes the heat that frequency converter generates to cooling tower, be dispersed into outdoor environment, such cooling water flows through cold
But tower is directly contacted with external environment, and water quality is poor, is easy to cause heat exchanging pipe fouling, reduces heat exchange efficiency, cooling effect is not
It is good.
Summary of the invention
Based on this, it is necessary to for the ineffective problem of traditional type of cooling, it is preferable to provide a kind of cooling effect
Cooling device.
A kind of cooling device, comprising:
Refrigerant unit, is passed through refrigerant；
Refrigerating unit, for installing frequency converter, and the refrigerating unit is passed through cooling solution；
Heat exchanger is connected to the refrigerant unit and the refrigerating unit, and the refrigerant and the cooling solution are in institute
State fluid interchange in heat exchanger；
Wherein, the cooling solution circulates between the heat exchanger and the refrigerating unit, and in the heat exchange
After the cold source for absorbing the refrigerant in device, the cold source is transferred to the frequency converter.
In above-mentioned cooling device, the cold source of refrigerant is absorbed by cooling solution, then by cold source pass to condenser 12 into
The cooling heat dissipation of row, cooling solution enclosed circulation between heat exchanger and refrigerating unit do not circulate with external world's heat exchange, will not will be outer
Boundary's impurity is brought into, prevents from influencing heat exchange efficiency in refrigerating unit and heat exchanger after incrustation, heat transfer effect is preferable.
Phase remains unchanged when the cooling solution exchanges heat in one of the embodiments, carries out the heat exchange of sensible heat formula.
The heat exchanger includes cooling solution access in one of the embodiments, and the refrigerating unit includes coldplate
And heat exchanger tube, the coldplate is for installing the frequency converter, and the heat exchanger tube is embedded on the coldplate, and the heat exchange
The head and the tail of pipe are connected to the inlet and outlet of the cooling solution access respectively, and the cooling solution is in the heat exchanger tube and the cooling
It is circulated between access.
The heat exchanger includes the coolant path adjacent with the cooling solution access, institute in one of the embodiments,
Stating refrigerant unit includes condenser and electric expansion valve, and the entrance of the condenser and the coolant path passes through piping connection,
And the electric expansion valve is provided on the pipeline.
The refrigerant unit further includes flash evaporation in one of the embodiments, the flash evaporation and the coolant path
Outlet connection.
It in one of the embodiments, further include controller and temperature sensor assembly, the temperature sensor assembly is used
In the actual temperature for detecting each position of coldplate, the controller controls the electronic expansion according to the actual temperature
The aperture of valve.
The temperature sensor assembly includes three temperature sensors, three temperature in one of the embodiments,
Sensor is respectively arranged on the entrance that the heat exchanger tube is corresponded on the coldplate, centre and the position of outlet, the controller root
The difference of the maximum temperature and preset temperature in the actual temperature detected according to three temperature sensors, described in control
The aperture of electric expansion valve.
The refrigerating unit further includes the pump housing in one of the embodiments, and the pump housing drives the cooling solution to exist
It is circulated between the heat exchanger and the heat exchanger tube.
Controller control before the frequency converter is started to work pump housing starting in one of the embodiments,.
The present invention also provides a kind of water cooler, including above-mentioned cooling device and frequency converter, the frequency converter is set to described
On refrigerating unit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cooling device in one embodiment of the invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, a kind of cooling device 100 is provided, for the frequency conversion in water cooler in one embodiment of the invention
Device carries out cooling heat.
Cooling device 100 includes refrigerant unit 10, refrigerating unit 30 and heat exchanger 50, refrigerant unit 10 and refrigerating unit 30
It is connected to heat exchanger 50.Wherein, refrigerant unit 10 is used to be passed through cooling solution for being passed through refrigerant, refrigerating unit 30, and cold
Matchmaker and cooling solution can enable cooling solution to absorb refrigerant in inflow heat exchanger 50 and the fluid interchange in heat exchanger 50
Cold source, to be carried out cooling heat to frequency converter.
Specifically, refrigerating unit 30 follows between heat exchanger 50 and refrigerating unit 30 for installing frequency converter, cooling solution
Circulation is dynamic, and cold source is transferred to frequency converter after the cold source of absorption refrigerant in heat exchanger 50, cooling to frequency converter to radiate.Such as
This, cooling solution only needs to recycle between heat exchanger 50 and refrigerating unit 30, is absorbed the cold source of refrigerant by cooling solution
The frequency converter on refrigerating unit 30 is passed to afterwards, and is cooled down solution and do not needed to circulate with extraneous, it will not be by extraneous impurity
Bring into, will not in refrigerating unit 30 and heat exchanger 50 incrustation, avoid incrustation from influencing heat exchange efficiency, heat transfer effect is preferable.
Specifically, heat exchanger 50 includes adjacent cooling solution access 52 and coolant path 54, cooling solution access 52 with
Refrigerating unit 30 is connected to and allows cooling solution flowing, and coolant path 54 is connected to refrigerant unit 10 and refrigerant is allowed to flow, makes
Refrigerant and cooling solution are exchanged heat in heat exchanger 50 by cooling solution access 52 and coolant path 54.
In some embodiments, refrigerant unit 10 includes condenser 12 and electric expansion valve 14, and condenser 12 and refrigerant are logical
The entrance on road 54 flows into the refrigerant in condenser 12 in the coolant path 54 of heat exchanger 50 by pipeline by piping connection.
Also, electric expansion valve 14 is provided on pipeline, electric expansion valve 14 carries out throttling cooling to the refrigerant in pipeline, obtains temperature
Lower refrigerant, to exchange heat into heat exchanger 50.
Further, refrigerant unit 10 further includes flash evaporation 16, and flash evaporation 16 is connect with the outlet of coolant path 54, refrigerant
Enter flash evaporation 16 after evaporation and heat-exchange in heat exchanger 50, is flowed to after further evaporative cooling by blowdown pipe in flash evaporation 16
Compressor is compressed, and restarts to recycle.
In some embodiments, refrigerating unit 30 includes coldplate 32 and heat exchanger tube 34, and coldplate 32 is for installing frequency conversion
Device, heat exchanger tube 34 are embedded on coldplate 32, and the head and the tail of heat exchanger tube 34 are connected to the inlet and outlet of cooling solution access 52 respectively,
Cooling solution circulates between heat exchanger tube 34 and cooling channel.When cooling solution in cooling channel flows through heat exchanger tube 34,
It exchanges heat with the coldplate 32 of installation heat exchanger tube 34, and coldplate 32 absorbs the heat of frequency converter simultaneously, so cooling solution is taken away
Frequency converter is transferred to the heat on coldplate 32, achievees the purpose that radiate to frequency converter.
Further, refrigerating unit 30 further includes the pump housing 36, and the pump housing 36 drives cooling solution in heat exchanger 50 and heat exchanger tube
It is circulated between 34, realizes the circulation of cooling solution.
In some embodiments, cooling device 100 further includes controller (not shown) and temperature sensor assembly 70, temperature
Sensor module 70 is used to detect the actual temperature of each position of coldplate 32, and controller controls electronic expansion according to actual temperature
The aperture of valve 14 adjusts the flow of refrigerant, and temperature when control refrigerant and cold and hot solution exchange heat maintains frequency converter temperature to stablize,
Prevent frequency converter from damaging because temperature is excessively high.
Specifically, temperature sensor assembly 70 includes three temperature sensors 72, and three temperature sensors 72 are respectively arranged on
34 entrance of heat exchanger tube, centre and the position of outlet are corresponded on coldplate 32, the temperature of each position of coldplate 32 are carried out comprehensive
Detection.The maximum temperature for the actual temperature that controller is detected according to three temperature sensors 72 and the difference of preset temperature, control
The aperture of electric expansion valve 14 processed.In this way, preventing temperature highest position on coldplate 32 is more than preset temperature, more reliably protect
Frequency converter is protected, frequency converter operation stability is improved.
In some embodiments, controller control pump housing 36 before frequency converter is started to work starts, band after the pump housing 36 starts
Cooling solution tape loop is moved to cool down the cold source of frequency converter, the heat for preventing frequency converter work from generating can not discharge in time.
Further, for any one above-mentioned embodiment, phase is remained unchanged when cooling solution therein exchanges heat, and is carried out
The heat exchange of sensible heat formula prevents phase transformation before and after cold and hot solution transmitting cold source and generates the larger temperature difference to frequency converter so that frequency converter by
More uniform cooling temperature.Specifically, the inlet and outlet temperature difference that heat exchanger tube 34 is corresponded on coldplate 32 is smaller, 32 temperature of coldplate
It is evenly distributed, avoids 32 inlet temperature of coldplate too low and condensation occur, prevent frequency converter component short-circuit under the influence of condensation
And demolition.
Further, cooling solution insulation prevents conduction after cooling solution leakage, improves the electrical security of frequency converter
Energy.Also, the heat transfer rate of cooling solution is higher, and cooling effect can be improved；The freezing point temperature of cooling solution is low, becomes in temperature
It is less likely to occur phase transformation when change, provides more uniform cooling temperature for frequency converter.
In above-mentioned cooling device 100, the cold source of refrigerant is absorbed by cooling solution, cold source is then passed into condenser 12
It carries out cooling heat, cooling solution enclosed circulation between heat exchanger 50 and refrigerating unit 30 does not circulate, no with external world's heat exchange
Introduced contaminants can be brought into, prevent from influencing heat exchange efficiency after incrustation in refrigerating unit 30 and heat exchanger 50, heat transfer effect is preferable.And
And cooling solution phase in heat transfer process does not change, and carries out the heat exchange of sensible heat formula, it is equal to be conducive to 32 Temperature Distribution of coldplate
It is even, it reduces coldplate 32 and imports and exports the temperature difference, effectively avoid 32 inlet temperature of coldplate too low and condensation occur, improve frequency converter
Electrical security.
In one embodiment of the invention, a kind of water cooler, including above-mentioned cooling device 100 and frequency converter, frequency conversion are also provided
Device is set on refrigerating unit 30, passes through cooling solution radiating and cooling.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of cooling device (100) characterized by comprising
Refrigerant unit (10), is passed through refrigerant；
Refrigerating unit (30), for installing frequency converter, and the refrigerating unit (30) is passed through cooling solution；
Heat exchanger (50) is connected to the refrigerant unit (10) and the refrigerating unit (30), and the refrigerant and the cooling
Solution is in the heat exchanger (50) interior fluid interchange；
Wherein, the cooling solution circulates between the heat exchanger (50) and the refrigerating unit (30), and described
After the cold source for absorbing the refrigerant in heat exchanger (50), the cold source is transferred to the frequency converter.
2. cooling device (100) according to claim 1, which is characterized in that phase is kept when the cooling solution exchanges heat
It is constant, carry out the heat exchange of sensible heat formula.
3. cooling device (100) according to claim 1, which is characterized in that the heat exchanger (50) includes cooling solution
Access (52), the refrigerating unit (30) include coldplate (32) and heat exchanger tube (34), and the coldplate (32) is for installing institute
State frequency converter, the heat exchanger tube (34) is embedded on the coldplate (32), and the head and the tail of the heat exchanger tube (34) respectively with institute
The inlet and outlet connection of cooling solution access (52) is stated, the cooling solution is between the heat exchanger tube (34) and the cooling channel
It circulates.
4. cooling device (100) according to claim 3, which is characterized in that the heat exchanger (50) include with it is described cold
But the adjacent coolant path (54) of solution access (52), the refrigerant unit (10) include condenser (12) and electric expansion valve
(14), the entrance of the condenser (12) and the coolant path (54) is by piping connection, and is arranged on the pipeline
State electric expansion valve (14).
5. cooling device (100) according to claim 4, which is characterized in that the refrigerant unit (10) further includes shwoot
Device (16), the flash evaporation (16) connect with the outlet of the coolant path (54).
6. cooling device (100) according to claim 4, which is characterized in that further include controller and temperature sensor group
Part (70), the temperature sensor assembly (70) are used to detect the actual temperature of the coldplate (32) each position, the control
Device processed controls the aperture of the electric expansion valve (14) according to the actual temperature.
7. cooling device (100) according to claim 6, which is characterized in that the temperature sensor assembly (70) includes
Three temperature sensors (72), three temperature sensors (72), which are respectively arranged on the coldplate (32), corresponds to the heat exchange
Manage entrance, centre and the position of outlet of (34), the institute that the controller is detected according to three temperature sensors (72)
The difference for stating the maximum temperature and preset temperature in actual temperature, controls the aperture of the electric expansion valve (14).
8. cooling device (100) according to claim 6, which is characterized in that the refrigerating unit (30) further includes the pump housing
(36), the pump housing (36) drives cooling solution recycle stream between the heat exchanger (50) and the heat exchanger tube (34)
It is dynamic.
9. cooling device (100) according to claim 8, which is characterized in that the controller starts in the frequency converter
The control pump housing (36) starting before work.
10. a kind of water cooler, which is characterized in that including cooling device (100) described in the claims 1-9 any one
And frequency converter, the frequency converter are set on the refrigerating unit (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266786.6A CN109405367A (en) | 2018-10-29 | 2018-10-29 | water chilling unit and cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266786.6A CN109405367A (en) | 2018-10-29 | 2018-10-29 | water chilling unit and cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109405367A true CN109405367A (en) | 2019-03-01 |
Family
ID=65470472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811266786.6A Pending CN109405367A (en) | 2018-10-29 | 2018-10-29 | water chilling unit and cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109405367A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131915A (en) * | 2019-04-10 | 2019-08-16 | 博微太赫兹信息科技有限公司 | A kind of High-precision temperature control system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631926A (en) * | 1985-08-23 | 1986-12-30 | Goldshtein Lev I | Method of obtaining low temperatures and apparatus for implementing the same |
| US20090031735A1 (en) * | 2007-08-01 | 2009-02-05 | Liebert Corporation | System and method of controlling fluid flow through a fluid cooled heat exchanger |
| CN103307715A (en) * | 2012-03-07 | 2013-09-18 | 珠海格力电器股份有限公司 | Air conditioner, cooling system of air conditioner and cooling method |
| CN205119550U (en) * | 2015-10-21 | 2016-03-30 | 珠海英伟特电子科技股份有限公司 | Dual heat recovery frequency conversion air source heat pump |
| CN106642799A (en) * | 2016-12-26 | 2017-05-10 | 广东申菱环境系统股份有限公司 | Data center cold and heat combined supply system and control method thereof |
-
2018
- 2018-10-29 CN CN201811266786.6A patent/CN109405367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631926A (en) * | 1985-08-23 | 1986-12-30 | Goldshtein Lev I | Method of obtaining low temperatures and apparatus for implementing the same |
| US20090031735A1 (en) * | 2007-08-01 | 2009-02-05 | Liebert Corporation | System and method of controlling fluid flow through a fluid cooled heat exchanger |
| CN103307715A (en) * | 2012-03-07 | 2013-09-18 | 珠海格力电器股份有限公司 | Air conditioner, cooling system of air conditioner and cooling method |
| CN205119550U (en) * | 2015-10-21 | 2016-03-30 | 珠海英伟特电子科技股份有限公司 | Dual heat recovery frequency conversion air source heat pump |
| CN106642799A (en) * | 2016-12-26 | 2017-05-10 | 广东申菱环境系统股份有限公司 | Data center cold and heat combined supply system and control method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131915A (en) * | 2019-04-10 | 2019-08-16 | 博微太赫兹信息科技有限公司 | A kind of High-precision temperature control system and method |
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Application publication date: 20190301 |
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