CN1554921A - Multistage regenerating type multiway evaporation cooling method and its heat exchanger - Google Patents
Multistage regenerating type multiway evaporation cooling method and its heat exchanger Download PDFInfo
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- CN1554921A CN1554921A CNA2003101228178A CN200310122817A CN1554921A CN 1554921 A CN1554921 A CN 1554921A CN A2003101228178 A CNA2003101228178 A CN A2003101228178A CN 200310122817 A CN200310122817 A CN 200310122817A CN 1554921 A CN1554921 A CN 1554921A
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Abstract
The multistage regenerating multiway evaporation cooling method is that when some gas flow into the dry side of the multiway heat exchange plate, it is first cooled before one part entering the wet side via the through holes between the dry side and the wet side is humidified, saturated, heated and exhausted while the other part is exhausted directly from the dry side. Or, the method may includes one gas flow entering the dry side and then being cooled and exhausted; and one other gas flow entering first the dry side, then the wet side via the holes and finally being humidified, saturated, heated and exhausted. The present invention has several passages for gas flows in different states and has increased temperature difference between different gas flows, increased heat conducting power, raised heat exchange efficiency, simple structure, small volume, light weight and low cost.
Description
Technical field
The present invention relates to a kind of multistage regenerative multichannel evaporating and cooling method and heat exchanger thereof.
Background technology
Heat exchanger has a wide range of applications in many industry such as chemical industry, oil, power, atomic energy, food, light industrys as common processing equipment.Serious day by day along with the continuous development of Modern New Technology, new technology, new material and energy problem must bring the demand of more high-performance, high parameter heat transmission equipment.
Heat exchanger is of a great variety, and shell-and-tube, board-like, plate-fin or the like are arranged.Wherein shell-and-tube heat exchanger is that current application is the widest, and theoretical research and designing technique are perfect, the class heat exchanger that serviceability can be good, and research mainly concentrates on strengthens tube side and shell side heat-transfer area aspect.
Simultaneously, novel heat exchanger is also in continuous exploitation.New type heat exchanger has dismountable plate type heat exchanger, welded type plate type heat exchanger, spiral-plate heat exchanger, heat exchange of heat pipe, non-scaling heat exchanger or the like.
Common vapor cooling system has two kinds: directly evaporative cooling and indirect evaporation cooling.Directly evaporative cooling is that gas directly contacts with liquid, and the liquid evaporation makes gas be cooled.The indirect evaporation cooling is that the gas of required cooling does not directly contact with gas, conducts by the heat of partition and realizes cooling.
Summary of the invention
The purpose of this invention is to provide a kind of multistage regenerative multichannel evaporating and cooling method and heat exchanger thereof.
A kind of multistage regenerative multichannel evaporating and cooling method: one air-flow at first flows into dried side, the pore that is cooled off the heat conductive wall between part air communication overdrying wherein, the wet side gradually enters wet side successively, and discharge by passage horizontal on the wet side humidification, saturated, the back of heating up; Another part is then directly discharged from doing side.
Another kind of multistage regenerative multichannel evaporating and cooling method: one or more strands of air-flows flow into the dried side of multichannel heat exchanger plates, are cooled off gradually, discharge then; The air-flow of one or multiply is introduced into dried side, then all by do, the pore of heat conductive wall between the wet side enters wet side successively, discharge by passage horizontal on the wet side humidification, saturated, the back of heating up.
Another multistage regenerative multichannel evaporating and cooling method: one or more strands of air-flows flow into the dried side of multichannel heat exchanger plates, are cooled off gradually, discharge then; Air-flow more than two strands or two strands is introduced into dried side, then part by do, the pore of heat conductive wall between the wet side enters wet side successively, discharge by passage horizontal on the wet side humidification, saturated, the back of heating up; Another part is directly from doing celestial the discharge.
Multistage regenerative multichannel evaporative cooling heat exchanger is by the folded system of a plurality of heat exchange units, and each heat exchange unit is made up of a multichannel heat exchanger plates and a heat exchange flat board.
The present invention can utilize the air-flow of the logical different conditions of a plurality of passages, makes that the temperature difference increases between the air-flow that carries out heat exchange, and heat transfer power increases, avoided influencing owing to the temperature difference is too little the efficient of heat exchange, and had simple in structurely, volume is little, in light weight, advantage such as cost is low.
Description of drawings
Fig. 1 multi-channel heat exchanger structural representation;
One air-flow regenerative evaporative cooling schematic diagram of Fig. 2;
The bifilar air-flow regenerative of Fig. 3 evaporative cooling schematic diagram;
Three bursts of air-flow regenerative of Fig. 4 evaporative cooling schematic diagram;
Five bursts of air-flow regenerative of Fig. 5 evaporative cooling schematic diagram.
The specific embodiment
A kind of multistage regenerative multichannel evaporating and cooling method: one air-flow at first flows into dried side, the pore 3 that is cooled off the heat conductive wall between part air communication overdrying wherein, the wet side gradually enters wet side successively, and discharge by passage horizontal on the wet side humidification, saturated, the back of heating up; Another part is then directly discharged from doing side.
Another kind of multistage regenerative multichannel evaporating and cooling method: one or more strands of air-flows flow into the dried side of multichannel heat exchanger plates 1, are cooled off gradually, discharge then; The air-flow of one or multiply is introduced into dried side, then all by do, the pore 3 of heat conductive wall between the wet side enters wet side successively, discharge by passage horizontal on the wet side humidification, saturated, the back of heating up.
Another multistage regenerative multichannel evaporating and cooling method: one or more strands of air-flows flow into the dried side of multichannel heat exchanger plates 1, are cooled off gradually, discharge then; Air-flow more than two strands or two strands is introduced into dried side, then part by do, the pore 3 of heat conductive wall between the wet side enters wet side successively, discharge by passage horizontal on the wet side humidification, saturated, the back of heating up; Another part is directly from doing celestial the discharge.
Multistage regenerative multichannel evaporative cooling heat exchanger is by the folded system of a plurality of heat exchange units, and it is formed by the folded system of a plurality of heat exchange units, and each heat exchange unit is made up of a multichannel heat exchanger plates 1 and a heat exchange dull and stereotyped 2.Be provided with pore 3 in the middle of the multichannel heat exchanger plates, both sides are a plurality of passages.Multichannel heat exchanger plates 1 is divided into does side and wet side, and dried side has a plurality of longitudinally passages; Wet side has horizontal a plurality of passages, and there is liquid adsorption layer 4 on the surface.
The present invention relates to the multichannel devaporizer of a kind of multistage regenerative, its operation principle is: one air-flow flows into the dried side of multi-channel heat exchanger, is cooled off gradually, discharges then; Another strand air-flow is introduced into dried side (not mixing with the air-flow of front), and the pore by the heat conductive wall between dried, the wet side enters wet side successively then, and humidification, saturated, intensification are discharged then.
So-called wet side has liquid on its wall, and the liquid evaporation absorbs the heat of doing side.
Do side and wet side and be equipped with a plurality of passages, the air-flow between each passage can not mix.
In some occasion, there are multiply cooled gas flow and the air-flow that is cooled, the multichannel method all can realize the multiply cooling blast and the heat exchange between the air-flow of being cooled.
The present invention has given prominence to three characteristics, " multistage ", " regeneration ", " multichannel ".
So-called " multistage " is meant that along on the airflow direction a plurality of apertures are arranged, and the air-flow of doing side passes heat conductive wall successively, enters wet side, and forms the different air-flow of multiply temperature in the multichannel of wet side.
So-called " regeneration " is meant that along on the airflow direction, dried sidewind is cooled gradually, because dried sidewind passes partition successively along airflow direction and enters wet side, makes the chilling temperature of wet side air constantly reduce, until the approaching dew-point temperature of doing the side air.
So-called " multichannel " is meant that dried side and wet side are divided into a plurality of passages, and the air-flow between each passage can not mix.Therefore in some occasion, the air-flow that has the multiply cooled gas flow and be cooled, multichannel all can be realized the multiply cooling blast and the heat exchange between the air-flow of being cooled.
As shown in Figure 1,1 is the multichannel heat exchanger plates, and 2 are the heat exchange flat board, and 3 is pore, and 4 is the adsorptive liquid layer.A multichannel heat exchanger plates and a heat exchange flat plate heat are formed a heat exchange unit, and multi-channel heat exchanger is formed by the folded system of a plurality of heat exchange units.
Be provided with pore in the middle of the multichannel heat exchanger plates, both sides are a plurality of passages.Multichannel heat exchanger plates tow sides are respectively does side and wet side, and dried side is provided with a plurality of longitudinally passages; Wet side has establishes horizontal a plurality of passages, and there is the adsorptive liquid layer on the surface.
As shown in Figure 2, the A face is the dried side of multichannel heat exchanger plates, and the B face is the wet side of multichannel heat exchanger plates, and C is the pore of the heat conductive wall between dried, the wet side.Below we analyze the warm and humid variation of air-flow doing side and wet side-draw some spots respectively, when air-flow is blown into heat exchanger by blower fan, at first carried out preliminary precooling by wet road, state changes to 6 from 5, be divided into two strands of air-flows then, one is for flowing into the product air-flow of doing side, one passes dried, the pore of the heat conductive wall between the wet side flows into wet side, be called working air current, the working air current and the wet side that at first flow into wet side are carried out damp and hot exchange, absorb sensible heat simultaneously from the product air-flow, state changes to 6 from 6 ' "; because the product air-flow only carries out dominance cooling, so state changes to 7 from 6, along with the tolerance that flows into wet side constantly increases; the product air-flow further obtains the dominance cooling; state changes to 8 by 7, and working air current continues through humidification, saturated intensification then; state changes to 7 from 7 ' ", so go down, be cooled to below the wet-bulb temperature near dew-point temperature up to the product air-flow, working air current is discharged from.
We are as can be seen from the psychrometric chart, temperature is constantly to reduce on the product air-flow streamwise of doing side, produced thermograde, make the chilling temperature of wet sidewind constantly reduce, and temperature has been constantly to raise on working air current streamwise on the wet side.
As shown in Figure 3, the D face is the dried side of multichannel heat exchanger plates, and the E face is the wet side of multichannel heat exchanger plates, and F is the pore of the heat conductive wall between dried, the wet side.10 and 12 is two strands of different air-flows of state, and 11,13 is respectively that air- flow 10 and 12 is through the air-flow behind the heat exchanger.
We are by the heat exchanger heat exchange with single stream among the last figure, now two bursts of different air communication of state are crossed heat exchanger, one air-flow 10 flows into the dried side of heat exchanger plates, is cooled off gradually, and state changes to 11 by 10, and another strand air-flow is introduced into the dried side (not mixing with air-flow 10) of heat exchanger plates, flow into wet side successively by the hole on the heat exchanger partition then, humidification is saturated, heat up, discharge then.
As shown in Figure 4, the G face is the dried side of multichannel heat exchanger plates, and the H face is the wet side of multichannel heat exchanger plates, and J is the pore of the heat conductive wall between dried, the wet side.17,18 expressions need cooled gas flow for two strands, wherein 17 temperature is higher than 18 temperature, 17 ', 18 ' represents that respectively air- flow 17,18 is through the later air-flow of heat exchanger, 14 another strand of expression air-flows, 15,16 expressions be air-flow 14 at two states transversely of wet side, on their the STA representation psychrometric chart on the right.
The air-flow 17 that temperature is different, 18 in dried side flow, air-flow 14 is introduced into the dried side of heat exchanger plates (not with air- flow 17,18 mix), through doing, the pore of the heat conductive wall between the wet side flows into wet side, the gas flow temperature in wet side that we once mentioned among Fig. 1 is constantly to raise on the streamwise, so we are flow to by the passage near middle pore by the air-flow that temperature is lower 18, and the higher air-flow 17 of temperature is flow to by the passage away from pore, like this can the temperature difference increases between the air-flow of heat exchange so that carry out, avoid owing to influence the efficient of heat exchange greatly because the temperature difference is too little, we find out such variation from psychrometric chart.
In like manner, this method can be used for the evaporative cooling of multiply air-flow regenerative, and as shown in Figure 5, the K face is the dried side of multichannel heat exchanger plates, and the L face is the wet side of multichannel heat exchanger plates, and M is the pore of the heat conductive wall between dried, the wet side.We can allow two bursts of needs cooled gas flow 22,23 do not mix mutually by doing side, three strands of air- flows 19,20,21 do not enter the dried side of heat exchanger plates mutually (not with air-flow 22 with not mixing, 23 mix), wherein 19 and 21 whole, 20 part through do, the pore of heat conductive wall between the wet side flows into the side that wets.Obtain 22 in dried side like this ', 23 ' cooling blast, and 20 '-1 cooling blast, 20 '-1,22 ' and 23 ' can mix also and can not mix.20 '-2 mixed airflow, and 21 ' with 20 '-2 mixed airflow.20 '-2 represent another part of air-flow 20.Can realize the regenerative evaporative cooling of five strands of air-flows like this, can realize the more regenerative evaporative cooling of multiply air-flow by increasing passage equally.
Claims (4)
1. multistage regenerative multichannel evaporating and cooling method, it is characterized in that: one air-flow at first flows into dried side, cooled off gradually, wherein the pore (3) of the heat conductive wall between part air communication overdrying, the wet side enters wet side successively, and discharge by passage horizontal on the wet side humidification, saturated, the back of heating up; Another part is then directly discharged from doing side.
2. multistage regenerative multichannel evaporating and cooling method is characterized in that: one (or multiply) air-flow flows into the dried side of multichannel heat exchanger plates (1), is cooled off gradually, discharges then; The air-flow of one or multiply is introduced into dried side, then all by do, the pore (3) of heat conductive wall between the wet side enters wet side successively, discharge by passage horizontal on the wet side humidification, saturated, the back of heating up.
3. multistage regenerative multichannel evaporating and cooling method is characterized in that: one (or multiply) air-flow flows into the dried side of multichannel heat exchanger plates (1), is cooled off gradually, discharges then; Air-flow more than two strands or two strands is introduced into dried side, then part by do, the pore (3) of heat conductive wall between the wet side enters wet side successively, humidification, saturated, the back of heating up are by passage discharge horizontal on the wet side; Another part is directly from doing celestial the discharge.
4. a multistage regenerative multichannel evaporative cooling heat exchanger is characterized in that, it is by the folded system of a plurality of heat exchange units, and each heat exchange unit is made up of a multichannel heat exchanger plates (1) and a heat exchange flat board (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2003101228178A CN100338426C (en) | 2003-12-21 | 2003-12-21 | Multistage regenerating type multiway evaporation cooling method and its heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2003101228178A CN100338426C (en) | 2003-12-21 | 2003-12-21 | Multistage regenerating type multiway evaporation cooling method and its heat exchanger |
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| CN1554921A true CN1554921A (en) | 2004-12-15 |
| CN100338426C CN100338426C (en) | 2007-09-19 |
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| CNB2003101228178A Expired - Fee Related CN100338426C (en) | 2003-12-21 | 2003-12-21 | Multistage regenerating type multiway evaporation cooling method and its heat exchanger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359249C (en) * | 2005-10-10 | 2008-01-02 | 尹进福 | Single and multi-stage indirect evaporative cooling method capable of repeatedly utilizing wet energy |
| CN102767877A (en) * | 2012-06-26 | 2012-11-07 | 澳蓝（福建）实业有限公司 | Self-cooling type multi-stage evaporation and refrigeration system and refrigeration method thereof |
| CN106931565A (en) * | 2015-12-31 | 2017-07-07 | 深圳市蓝云科学技术有限公司 | Cooling device and has the air-conditioning of the cooling device |
| CN113883930A (en) * | 2021-09-30 | 2022-01-04 | 西安交通大学 | Dividing wall type heat exchanger and application |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5187946A (en) * | 1991-09-24 | 1993-02-23 | Yefim Rotenberg | Apparatus & Method for indirect evaporative cooling of a fluid |
| US5315843A (en) * | 1992-08-13 | 1994-05-31 | Acma Limited | Evaporative air conditioner unit |
| KR100409265B1 (en) * | 2001-01-17 | 2003-12-18 | 한국과학기술연구원 | Regenerative evaporative cooler |
| US6854278B2 (en) * | 2001-08-20 | 2005-02-15 | Valeriy Maisotsenko | Method of evaporative cooling of a fluid and apparatus therefor |
-
2003
- 2003-12-21 CN CNB2003101228178A patent/CN100338426C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359249C (en) * | 2005-10-10 | 2008-01-02 | 尹进福 | Single and multi-stage indirect evaporative cooling method capable of repeatedly utilizing wet energy |
| CN102767877A (en) * | 2012-06-26 | 2012-11-07 | 澳蓝（福建）实业有限公司 | Self-cooling type multi-stage evaporation and refrigeration system and refrigeration method thereof |
| CN102767877B (en) * | 2012-06-26 | 2015-08-19 | 澳蓝（福建）实业有限公司 | The system of self-cooled multistage evaporation refrigeration and refrigerating method thereof |
| CN106931565A (en) * | 2015-12-31 | 2017-07-07 | 深圳市蓝云科学技术有限公司 | Cooling device and has the air-conditioning of the cooling device |
| CN113883930A (en) * | 2021-09-30 | 2022-01-04 | 西安交通大学 | Dividing wall type heat exchanger and application |
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| Publication number | Publication date |
|---|---|
| CN100338426C (en) | 2007-09-19 |
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Assignee: Hangzhou ISAW Technology Limited Assignor: Yuan Yijun Contract record no.: 2010330001940 Denomination of invention: Multistage regenerating type multiway evaporation cooling method and its heat exchanger Granted publication date: 20070919 License type: Exclusive License Open date: 20041215 Record date: 20100925 |
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Assignee: Hangzhou ISAW Technology Limited Assignor: Yuan Yijun Contract record no.: 2010330001940 Date of cancellation: 20120718 |
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