CN107014012A - The evaporation-cooled device that microchannel is combined with membrane technology - Google Patents
The evaporation-cooled device that microchannel is combined with membrane technology Download PDFInfo
- Publication number
- CN107014012A CN107014012A CN201710243712.XA CN201710243712A CN107014012A CN 107014012 A CN107014012 A CN 107014012A CN 201710243712 A CN201710243712 A CN 201710243712A CN 107014012 A CN107014012 A CN 107014012A
- Authority
- CN
- China
- Prior art keywords
- microchannel
- water
- evaporation
- cooling
- wet
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The present invention relates to the evaporation-cooled device that a kind of microchannel is combined with membrane technology, fully sheathed case external connection water circulating pump and water-supply-pipe；Condenser pipe and condenser, top is divided into by a thermal insulation board in fully sheathed case and does space, the wet space in bottom, one layer of nanoporous water-absorbing film is placed above thermal insulation board, the vertical microchannel of spaced set on film, connected on the upside of vertical microchannel with condenser pipe, utilize the water imbibition of microchannel capillary pressure and nano-porous film, respectively two strands of air are carried out with directly or indirectly evaporation in wet space and dry space to cool down, makes it respectively reach wet-bulb temperature and dew-point temperature to meet the surrounding air requirement of different occasions.The present invention utilizes indirect evaporative cooling technology principle, dry and wet passage in traditional dew point cooling is replaced by using dry and wet space, increase contact area to improve the indirect evaporating-cooling effect of auxiliary air with reference to microchannel, it is intended to using membrane technology in microchannel, preferably improve the refrigeration of dew point evaporation cooling technique.
Description
Technical field
The invention belongs to air-conditioning technique field, relate generally to a kind of micro- supporting film dew point that leads to and evaporate cooling dress
Put.
Background technology
Nowadays, building green building turns into one of important channel of building trade Transformation Development, rationally using natural cold source,
And the low taste heat energy of air, become two transition breaches of field of air conditioning energy-conservation and Utilizing Energy Sources in Reason.Therefore, steam
But this energy-conserving and environment-protective, the New Refrigerating technology of sustainable development of feeling cold receive the extensive concern of domestic and international industry.It is with water
As refrigerant, moisture evaporation is absorbed heat the operation of traditional air-conditioning system refrigeration unit is replaced as natural cooling source so that equipment
Have the advantage that：
（1）Cost is low (initial cost is about the 1/2 of conventional air-conditioning equipment, cheap conveniently to obtain)；
（2）Energy consumption is low, and (without using compressor, operation energy consumption is about the 1/5 of conventional air-conditioning equipment）；
（3）Air quality is high, is run using 100% all-fresh air.
Evaporation cooling can be divided into direct evaporating-cooling and indirect evaporating-cooling according to the way of contact of fluid and air.
And the dew point evaporation cooling technique based on the technology is a kind of without using compressor, it will directly or indirectly evaporate cooling duct and mutually tie
Close, by directly or indirectly contacting for air and water, make air or water cooling to below wet-bulb temperature, until reaching dew-point temperature
Novel thermodynamic cycle.
Typical dew point evaporation-cooled device is made up of dry air passage and humid air passage, the secondary sky in dry air passage
Air humidity degree is constant, and there is spilehole the centre of passage, and the auxiliary air flowed through herein is flowed into humid air passage through stomata, and
Humidification is adiabatic together with original primary air in humid air passage, own temperature is reduced, then to the secondary sky in dry passage
Gas progress etc. is clammy but, is close to dew-point temperature.
The external research for evaporation cooling technique, has introduced a kind of new membrane technology concept, i.e., absorbed water using film, with
Air contact is to increase heat exchange area.Main method has following two：
1）Make two-phase laminated flow in evaporation process using nanometer micropore film.But foreign scholar's research is found, in the method, liquid
Body is spontaneously inhaled into the microchannel for covering hydrophobic porous film, and vapor is discharged from the pore of film.Due to phase
Change is that occur under film, therefore will produce extra thermal resistance, weakens heat-transfer effect.
2）The method of another utilization enthalpy of vaporization and natural separation two-phase is film evaporation technique.Use, so that logical
The whole heat-transfer effect for crossing the thin liquid film is significantly increased.But, it is necessary to which very big pump pressure can just be forced the fluid into big region
In film.Therefore, in order to which liquid can be automatically flowed into film, capillary pressure is produced usually using nanometer wicking, by liquid
The thin membrane regions of body suction evaporation.In this regard, the research work of forefathers is essentially consisted in, for example, evaporate from titanium post array[]And aluminum oxide
Perforated membrane.
The superiority-inferiority of above two mode is considered, it is necessary to which a kind of new dew point evaporation-cooled device, the device will be received
Rice porous membrane is combined to realize that thin film evaporation is cooled down with microchannel.Its general principle is that make use of aperture institute in film
The capillary pressure of generation, and realize by reducing film thickness the minimum of viscosity loss.
The content of the invention
The present invention proposes the evaporation-cooled device that a kind of microchannel is combined with membrane technology, and sharp microchannel is micro- in nanometer to realize
Evaporation cooling in the film of hole, the capillary pressure that the device is produced by nanometer micropore drives fluid, and using phase transformation come
The huge heat dissipation capacity of absorption equipment.At the same time, the viscosity loss of microchannel and film is flowed through, and through the overall thermoelectricity of fluid
Resistance has reached minimum.
To achieve the above object, the main case of technology of the invention is：The evaporation cooling dress that a kind of microchannel is combined with membrane technology
Put, with a fully sheathed case, fully sheathed case external connection water circulating pump and water-supply-pipe；Condenser pipe and condenser, it is characterised in that：It is described
In fully sheathed case by a thermal insulation board be divided into above and below two spaces, upper space is dry space, and lower space is to be put above wet space, thermal insulation board
Put on the upside of the vertical microchannel of spaced set on one layer of nanoporous water-absorbing film, nanoporous water-absorbing film, vertical microchannel
Connected with condenser pipe, using the water imbibition of microchannel capillary pressure and nano-porous film, in wet space and dry space
Two strands of air are carried out with directly or indirectly evaporation respectively to cool down, makes it respectively reach wet-bulb temperature and dew-point temperature to meet difference
The surrounding air requirement of occasion.
The fully sheathed case bottom sets catch basin.
There is a humid air, a humid air is directly contacted with the cooling water in the cistern of bottom in the wet space,
Carry out during direct evaporating-cooling, direct evaporating-cooling, a humid air constant enthalpy humidifying cooling is minimum to can reach air wet bulb
Temperature；Water releases the latent heat of vaporization simultaneously, and temperature reduction, into water-supply-pipe, by water circulating pump, is sent to receiving above thermal insulation board
Rice porous water-absorbing film infiltrates to it, nanoporous water-absorbing film is remained water suction moisture state.
Under the capillarity of microchannel, the cooling water in the nanoporous water-absorbing film is automatically inhaled into microchannel
In standpipe, into thermal insulation board above dry space；Enter when water is inhaled into the microchannel in the dry space on top, secondary sky
Gas is exchanged heat with the cooling water in microchannel, and the heat of cooling water absorption air is changed into steam, external secondary air by etc. it is wet
Cooling.
Steam in the microchannel is by the condenser pipe of upper horizontal to external condenser, and condensation heat release is changed into liquid,
Enter back into catch basin and recycle.
The beneficial effects of the invention are as follows：The present invention utilizes indirect evaporative cooling technology principle, by using dry and wet space generation
Dry and wet passage in being cooled down for traditional dew point, increases contact area to improve the indirect evaporation of auxiliary air with reference to microchannel
Cooling effect, it is intended to using membrane technology in microchannel, preferably improves the refrigeration of dew point evaporation cooling technique.
Brief description of the drawings
Fig. 1 is the evaporation-cooled device principle schematic based on film；
Fig. 2 is microchannel supporting film dew point evaporation-cooled device schematic diagram of the invention.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
This evaporation-cooled device based on film proposed by the present invention, sharp microchannel is realized in nanometer micropore film
Evaporation cooling, as shown in fig. 1.
As shown in Fig. 2 the microchannel supporting film dew point evaporation-cooled device of the present invention, apparatus main body is that a closing is rectangular
Body fully sheathed case, fully sheathed case external connection water circulating pump 4 and water-supply-pipe 3；Condenser pipe 5 and condenser 6.It is heat-insulated by one in apparatus main body
Plate 9 be divided into above and below two spaces, upper space is dry space 1, and lower space is wet space 2, and it is many that one layer of nanometer is placed in the top of thermal insulation board 9
Microchannel 10 equidistantly is vertically arranged on hole water-absorbing film 8, film, upside is connected with condenser pipe.
The upside of thermal insulation board 9 is dry space 1, and downside is wet space 2.It is one to be evaporated based on dew point in cooling principle, wet space
Secondary humid air A, is directly contacted with the cooling water in the cistern 7 of bottom of device, carries out direct evaporating-cooling.During being somebody's turn to do, one
Secondary humid air A constant enthalpy humidifying coolings are minimum to can reach air's wet bulb temperature；Water loses the latent heat of vaporization simultaneously, and temperature reduction enters
Water-supply-pipe 3, by water circulating pump 4, the surface of nano-porous film 8 for being sent to the top of thermal insulation board 9 infiltrates to it, makes film
Remain water suction moisture state.Microchannel 10 is equally spacedly vertically arranged above film, in the capillary pressure masterpiece of microchannel 10
Under, the cooling water in film is spontaneously inhaled into the standpipe of microchannel, into dividing plate above dry space.Thermal insulation board material should
From the preferable material of heat insulating effect.
Due to can directly or indirectly be cooled down respectively to two strands of incoherent air simultaneously, the device can be according to not
Same ambient temperature and humidity degree requirement, while being cooled down to different spaces.
Done when water is inhaled into approaching side in microchannel 10 in space 1, auxiliary air B is by the tube wall of microchannel 10, with passage
In cold water indirect evaporating-cooling, make its etc. is wet to be cooled to close to dew-point temperature.
The liquid absorption heat in microchannel 10 is inhaled into nano-porous film 8, either pure steam is flashed to, reached full
Condensed in after on wall.By the condenser pipe 5 of the upper horizontal of microchannel 10, vapor is exported into external condenser 6 condensation,
Enter back into cistern 7 and recycle.
In the process of running, when liquid penetrates into the nanometer aperture in film, it can be inhaled into microchannel, and in it
Portion absorbs extraneous air heat across microchannel wall, flashes to either pure steam, final to condense within the condenser.The device is relied on and received
The capillary pressure that meter Wei Kong is produced drives fluid, and using phase transformation come the huge heat dissipation capacity of absorption equipment.It can be seen that, will be micro- logical
Road Technology application has very great help in the evaporation cooling based on film for the heat exchange property of system.
In summary, in order to strengthen the indirect cooling effect of auxiliary air and water, the new device of the present invention is to improve
Traditional auxiliary air processing procedure in dry passage.In fact, the present invention utilize micro-channel evaporator technology, one come due to
Its heat exchange surface area is big, can increase the indirect heat transfer area of auxiliary air and liquid in microchannel, secondly as its pressure-bearing energy
Power is high, can adapt to the head of liquid in the range of larger space.
High pump pressure is needed due to injecting liquid into microchannel, very big pump energy consumption is also needed in larger space,
Therefore microchannel lower end is placed in using one layer of nanometer micropore film, when liquid penetrates into the nanometer aperture in film, due to its production
Raw capillary pressure, makes liquid spontaneously inject in microchannel, passes through conduit wall and auxiliary air indirect contact heat exchanger.The dress
Put by the capillary pressure of nanometer micropore generation to drive fluid, and using phase transformation come the huge heat dissipation capacity of absorption equipment.With
This flows through the viscosity loss of microchannel and film, and reached minimum through the overall thermal resistance of fluid simultaneously.
Claims (5)
1. the evaporation-cooled device that a kind of microchannel is combined with membrane technology, with a fully sheathed case, fully sheathed case external connection recirculated water
Pump (4) and water-supply-pipe (3)；Condenser pipe (5) and condenser (6), it is characterised in that：By a thermal insulation board (9) point in the fully sheathed case
Into two spaces up and down, upper space is dry space (1), and lower space is that one layer of nanometer is placed above wet space (2), thermal insulation board (9)
Equidistantly it is vertically arranged on porous water-absorbing film (8), nanoporous water-absorbing film (8) on the upside of microchannel (10), microchannel (10)
Connected with condenser pipe (5), using the water imbibition of microchannel (10) capillary pressure and nanoporous water-absorbing film (8), wet
Respectively two strands of air are carried out with directly or indirectly evaporation in space (2) and dry space (1) to cool down, it is respectively reached wet-bulb temperature
With dew-point temperature to meet the surrounding air requirement of different occasions.
2. the evaporation-cooled device that microchannel according to claim 1 is combined with membrane technology, it is characterised in that：The closing
Bottom portion sets catch basin (7).
3. the evaporation-cooled device that microchannel according to claim 1 is combined with membrane technology, it is characterised in that：The wet sky
Between there is in (2) humid air (A), a humid air (A) directly contacts with the cooling water in the cistern (7) of bottom, entered
During row direct evaporating-cooling, direct evaporating-cooling, a humid air A constant enthalpy humidifying cooling is minimum to can reach air wet bulb
Temperature；Water releases the latent heat of vaporization simultaneously, and temperature reduction, into water-supply-pipe (3), by water circulating pump (4), is sent to thermal insulation board
(9) the nanoporous water-absorbing film (8) above infiltrates to it, nanoporous water-absorbing film (8) is remained that water suction is wet
Profit state.
4. the evaporation-cooled device that microchannel according to claim 1 is combined with membrane technology, it is characterised in that：In microchannel
(10) under capillarity, the cooling water in the nanoporous water-absorbing film (9) is automatically inhaled into the standpipe of microchannel (10)
In, into thermal insulation board (9) above dry space (1)；When water is inhaled into the dry space (1) in the microchannel (10) into top
Interior, auxiliary air (B) is exchanged heat with the cooling water in microchannel (10), and the heat of cooling water absorption air is changed into steam, outside
Portion's auxiliary air (B) by etc. wet cooling.
5. the evaporation-cooled device that microchannel according to claim 1 is combined with membrane technology, it is characterised in that：It is described micro- logical
Steam in road (10) is by the condenser pipe (5) of upper horizontal to external condenser (6), and condensation heat release is changed into liquid, entered back into
Recycled in catch basin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243712.XA CN107014012B (en) | 2017-04-14 | 2017-04-14 | Evaporation-cooled device of the microchannel in conjunction with membrane technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243712.XA CN107014012B (en) | 2017-04-14 | 2017-04-14 | Evaporation-cooled device of the microchannel in conjunction with membrane technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107014012A true CN107014012A (en) | 2017-08-04 |
| CN107014012B CN107014012B (en) | 2019-05-24 |
Family
ID=59446065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243712.XA Active CN107014012B (en) | 2017-04-14 | 2017-04-14 | Evaporation-cooled device of the microchannel in conjunction with membrane technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107014012B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444325A (en) * | 2018-03-19 | 2018-08-24 | 桂林电子科技大学 | A kind of cooling device that nano thin-film is combined with microchannel |
| CN109469996A (en) * | 2018-10-29 | 2019-03-15 | 上海理工大学 | Utilize the film evaporative condenser of condensed water |
| CN111146167A (en) * | 2020-01-10 | 2020-05-12 | 西安交通大学 | Heat dissipation device and method for pump-driven thin film evaporation high-heat-flux electronic device |
| CN112888264A (en) * | 2021-02-02 | 2021-06-01 | 西安交通大学 | Double-deck microchannel heat abstractor based on gas-liquid separation |
| CN115095929A (en) * | 2022-06-20 | 2022-09-23 | 中冶天工集团有限公司 | Novel fresh air pretreatment device and use method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999066282A1 (en) * | 1998-06-18 | 1999-12-23 | 3M Innovative Properties Company | Microchanneled heat exchanger |
| US20120128546A1 (en) * | 2004-02-25 | 2012-05-24 | David John Bishop | Micro-Channel Chemical Concentrator Apparatus |
| CN104677164A (en) * | 2015-03-04 | 2015-06-03 | 特灵空调***(中国)有限公司 | Micro-channel heat exchanger and micro-channel pipe thereof |
| CN204593697U (en) * | 2015-04-07 | 2015-08-26 | 上海理工大学 | Direct and indirect dew point evaporation-cooled device |
| EP2570754A3 (en) * | 2011-09-19 | 2015-10-21 | Liebherr-Hausgeräte Ochsenhausen GmbH | Multi channel evaporator system |
| CN105222260A (en) * | 2015-11-10 | 2016-01-06 | 上海理工大学 | The modular evaporation-cooled device that dry wet channel combines |
| CN106524596A (en) * | 2016-12-28 | 2017-03-22 | 江苏康泰热交换设备工程有限公司 | Evaporative condensation method and device for air conditioning evaporator |
-
2017
- 2017-04-14 CN CN201710243712.XA patent/CN107014012B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999066282A1 (en) * | 1998-06-18 | 1999-12-23 | 3M Innovative Properties Company | Microchanneled heat exchanger |
| US20120128546A1 (en) * | 2004-02-25 | 2012-05-24 | David John Bishop | Micro-Channel Chemical Concentrator Apparatus |
| EP2570754A3 (en) * | 2011-09-19 | 2015-10-21 | Liebherr-Hausgeräte Ochsenhausen GmbH | Multi channel evaporator system |
| CN104677164A (en) * | 2015-03-04 | 2015-06-03 | 特灵空调***(中国)有限公司 | Micro-channel heat exchanger and micro-channel pipe thereof |
| CN204593697U (en) * | 2015-04-07 | 2015-08-26 | 上海理工大学 | Direct and indirect dew point evaporation-cooled device |
| CN105222260A (en) * | 2015-11-10 | 2016-01-06 | 上海理工大学 | The modular evaporation-cooled device that dry wet channel combines |
| CN106524596A (en) * | 2016-12-28 | 2017-03-22 | 江苏康泰热交换设备工程有限公司 | Evaporative condensation method and device for air conditioning evaporator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444325A (en) * | 2018-03-19 | 2018-08-24 | 桂林电子科技大学 | A kind of cooling device that nano thin-film is combined with microchannel |
| CN108444325B (en) * | 2018-03-19 | 2024-02-27 | 桂林电子科技大学 | Cooling device combining nano film and micro channel |
| CN109469996A (en) * | 2018-10-29 | 2019-03-15 | 上海理工大学 | Utilize the film evaporative condenser of condensed water |
| CN111146167A (en) * | 2020-01-10 | 2020-05-12 | 西安交通大学 | Heat dissipation device and method for pump-driven thin film evaporation high-heat-flux electronic device |
| CN112888264A (en) * | 2021-02-02 | 2021-06-01 | 西安交通大学 | Double-deck microchannel heat abstractor based on gas-liquid separation |
| CN115095929A (en) * | 2022-06-20 | 2022-09-23 | 中冶天工集团有限公司 | Novel fresh air pretreatment device and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107014012B (en) | 2019-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107014012B (en) | Evaporation-cooled device of the microchannel in conjunction with membrane technology | |
| CN206361857U (en) | Heat reclamation type embrane method solution heat pump system | |
| CN105698290B (en) | A kind of air-conditioning system humidified using condensed water | |
| CN109163471B (en) | Energy-saving comfortable type split heat pump air conditioning system and control method thereof | |
| CN206361856U (en) | Heat reclamation type embrane method solution air-conditioning | |
| CN107062443A (en) | Twin-stage dehumidification type temperature-adjustable dehumidifier | |
| CN107869812A (en) | Integral type embrane method solution heat pump system | |
| CN103615916A (en) | Efficient air dehumidification and stepless temperature regulation device | |
| CN103940154A (en) | Wet-film surface air cooler of composite structure | |
| CN107990458A (en) | A kind of machine integrated equipment of heat tube moisture | |
| KR20190138911A (en) | Air Conditioner Having Double Cooling System | |
| CN201764648U (en) | Constant temperature and humidity machine | |
| CN107781923A (en) | A kind of normal temperature fresh air dehumidification device | |
| CN106698559A (en) | Heat-pump seawater desalination device | |
| CN215892596U (en) | Dehumidifier | |
| CN109511246A (en) | A kind of heat pipe air conditioner formula indirect evaporation cooling system | |
| CN104214984A (en) | Auto-cascade energy tower heat pump system | |
| CN111006336B (en) | Composite air conditioning system and air conditioning room | |
| CN104613673B (en) | A kind of jet suction type refrigerated dehumidification unit | |
| CN207230984U (en) | Energy-saving type air conditioner refrigeration system | |
| CN207179871U (en) | Capillary radiation cold supply system based on chlorofluoromethane refrigerant | |
| CN205536132U (en) | Dehumidifier | |
| CN105841259A (en) | Energy-saving dehumidifier additionally provided with pulsating heat pipe | |
| CN205505203U (en) | Air -conditioner | |
| CN206207620U (en) | Embrane method solution wind formula refrigeration plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |