CN117366708A - Wet curtain structure and heat exchange system with same - Google Patents
Wet curtain structure and heat exchange system with same Download PDFInfo
- Publication number
- CN117366708A CN117366708A CN202210761649.XA CN202210761649A CN117366708A CN 117366708 A CN117366708 A CN 117366708A CN 202210761649 A CN202210761649 A CN 202210761649A CN 117366708 A CN117366708 A CN 117366708A
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- wet curtain
- collecting
- curtain structure
- equal
- sheet
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- 239000007788 liquid Substances 0.000 claims abstract description 50
- 238000005452 bending Methods 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 24
- 238000001816 cooling Methods 0.000 abstract description 21
- 238000012545 processing Methods 0.000 description 18
- 238000012546 transfer Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000011176 pooling Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a wet curtain structure and a heat exchange system with the wet curtain structure. Wherein, wet curtain structure includes: a plurality of wet curtain sheets, adjacent two wet curtain sheets are staggered to form an air flow channel, so that the air entering through the air flow channel contacts with the liquid attached to the wet curtain sheets and exchanges heat; among the plurality of wet curtain sheets, at least one wet curtain sheet has a collecting recess facing the surface of the adjacent wet curtain sheet, and at least part of the liquid and at least part of the gas flowing through the collecting recess are collected in the collecting recess, so that the contact area between the gas and the liquid in the wet curtain structure is increased. The invention effectively solves the problem of poor cooling effect of the wet curtain structure in the prior art.
Description
Technical Field
The invention relates to the technical field of heat exchange systems, in particular to a wet curtain structure and a heat exchange system with the wet curtain structure.
Background
At present, the evaporative cooling technology is an environment-friendly and efficient refrigeration scheme and is widely applied to industrial refrigeration equipment and household appliances, such as heat exchange systems of evaporative refrigeration air conditioners, cooling towers, cooling fans and the like. The wet curtain structure is used as a core component of the heat exchange system, and the structure of the wet curtain structure plays a key role in heat exchange.
In the prior art, the wet curtain structure is a filler formed by rolling paper fibers into a corrugated shape and then bonding the paper fibers layer by layer, and two adjacent corrugated papers are overlapped in a staggered manner to form a channel. In the channel, the gas and water are in direct contact and heat-moisture exchange, the water absorbs heat and evaporates to become water vapor, the gas releases heat and lowers the temperature, and the gas is treated into cold air with lower temperature and then is discharged.
However, the cooling effect of the wet curtain structure in the prior art is poor, and the heat exchange efficiency of the heat exchange system is affected.
Disclosure of Invention
The invention mainly aims to provide a wet curtain structure and a heat exchange system with the wet curtain structure, so as to solve the problem of poor cooling effect of the wet curtain structure in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a wet curtain structure comprising: a plurality of wet curtain sheets, adjacent two wet curtain sheets are staggered to form an air flow channel, so that the air entering through the air flow channel contacts with the liquid attached to the wet curtain sheets and exchanges heat; among the plurality of wet curtain sheets, at least one wet curtain sheet has a collecting recess facing the surface of the adjacent wet curtain sheet, and at least part of the liquid and at least part of the gas flowing through the collecting recess are collected in the collecting recess, so that the contact area between the gas and the liquid in the wet curtain structure is increased.
Further, the pooling concave portion extends to both ends of the wet curtain sheet.
Further, a plurality of collecting concave parts are arranged on the wet curtain sheet at intervals; wherein all the collecting concave parts on each wet curtain sheet are positioned on the same surface.
Further, the number of the collecting recesses is plural, and the collecting amounts of the collecting recesses are uniform.
Further, the plurality of collecting recesses are provided, each of the collecting recesses extends in the first direction, and the extending directions of all the collecting recesses are uniform.
Further, the collecting concave part extends along the first direction, each wet curtain sheet comprises a plurality of bending sections which are sequentially connected along the second direction, and a first included angle is formed between the bending line of each bending section and the second direction; the second included angle theta between the bending section and the first direction is larger than or equal to 60 degrees and smaller than or equal to 120 degrees.
Further, the collecting concave part is a groove, and the groove is formed by at least partially protruding towards the adjacent wet curtain sheet; alternatively, the grooves are formed by removing or cutting away at least a portion of the surface of the wet curtain sheet.
Further, the groove width L1 of the groove is more than or equal to 1mm and less than or equal to 5mm; and/or the groove depth L2 of the groove is more than or equal to 0.5mm and less than or equal to 2mm; and/or the grooves are multiple, and the groove spacing L3 between two adjacent grooves is more than or equal to 5mm and less than or equal to 15mm.
Further, in each wet curtain sheet, the number of the collecting recesses is plural, and the area S1 occupied by all the collecting recesses and the total area S of the wet curtain sheet satisfy: s1 is less than or equal to 0.5S.
According to another aspect of the present invention, there is provided a heat exchange system comprising the wet curtain structure described above.
By applying the technical scheme of the invention, the wet curtain structure comprises a plurality of wet curtain sheets, and two adjacent wet curtain sheets are staggered to form an air flow channel. Among the plurality of wet curtain sheets, at least one wet curtain sheet has a collecting recess facing a surface of the wet curtain sheet adjacent thereto. In this way, in the operation process of the heat exchange system, liquid flows on the wet curtain sheet and forms a water film, gas flows in the gas flow channel, the liquid and the gas are contacted in the gas flow channel and exchange heat, at least part of the liquid flowing through the collecting concave part and at least part of the gas are collected in the collecting concave part, and then the contact area between the gas and the liquid in the wet curtain structure is increased, so that the two can exchange heat fully, and the problem of poor cooling effect of the wet curtain structure in the prior art is solved. Meanwhile, the gas flowing through the collecting concave part can be turbulent or vortex at the collecting concave part to destroy the boundary layer between the gas and the liquid, so that the gas and the liquid are mixed more fully, the heat transfer resistance between the gas and the liquid is reduced to a great extent, the heat transfer and mass transfer between the gas and a water film can be effectively enhanced, and the evaporation cooling effect of the wet curtain structure is effectively improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic perspective view showing an embodiment one of a wet curtain sheet of a wet curtain structure according to the present invention;
FIG. 2 shows a top view of a wet curtain sheet of the wet curtain structure of FIG. 1;
FIG. 3 shows a cross-sectional view A-A of a wet curtain sheet of the wet curtain structure of FIG. 1;
FIG. 4 shows a schematic perspective view of the wet curtain structure of FIG. 1;
wherein the above figures include the following reference numerals:
10. wet curtain sheets;
20. an air flow channel;
30. the collecting recess.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.
In order to solve the relatively poor problem of cooling effect of wet curtain structure among the prior art, this application provides a wet curtain structure and have its heat transfer system.
As shown in fig. 1 to 4, the wet curtain structure includes a plurality of wet curtain sheets 10. Adjacent two wet curtain sheets 10 are staggered to form a gas flow channel 20 so that gas entering through the gas flow channel 20 contacts and exchanges heat with liquid attached to the wet curtain sheets 10. Among the plurality of wet curtain sheets 10, at least one surface of the wet curtain sheet 10 facing the adjacent wet curtain sheet 10 has a collecting recess 30, and at least part of the liquid and at least part of the gas flowing through the collecting recess 30 are collected in the collecting recess 30, thereby increasing the contact area between the gas and the liquid in the wet curtain structure.
By applying the technical scheme of the embodiment, the wet curtain structure comprises a plurality of wet curtain sheets 10, and two adjacent wet curtain sheets 10 are staggered to form an air flow channel 20. Among the plurality of wet curtain sheets 10, at least one wet curtain sheet 10 has a collecting recess 30 toward a surface of the wet curtain sheet 10 adjacent thereto. In this way, in the operation process of the heat exchange system, the liquid flows on the wet curtain sheet 10 and forms a water film, the gas flows in the gas flow channel 20, the liquid contacts with the gas in the gas flow channel 20 and exchanges heat, at least part of the liquid flowing through the collecting concave part 30 and at least part of the gas collect in the collecting concave part 30, so that the contact area between the gas and the liquid in the wet curtain structure is increased, the contact area between the gas and the liquid is fully exchanged, and the problem of poor cooling effect of the wet curtain structure in the prior art is solved. Meanwhile, the gas flowing through the collecting concave part 30 can be turbulent or vortex at the collecting concave part 30 to destroy the boundary layer between the gas and the liquid, so that the gas and the liquid are mixed more fully, the heat transfer resistance between the gas and the liquid is reduced to a great extent, the heat transfer and mass transfer between the gas and a water film can be effectively enhanced, and the evaporation cooling effect of the wet curtain structure is effectively improved.
In this embodiment, the above arrangement of the collecting recess 30 makes it possible to enhance the gas-liquid interface area and the vortex strength of the flow field inside the wet curtain structure as much as possible without increasing the wind resistance.
Specifically, in the present embodiment, the water flow is affected by the collecting recess 30, resulting in a more disordered flow thereof, and thus, a surface of almost the entire wet curtain structure is subjected to the liquid distribution, compared to the case where the surface of the existing wet curtain structure is difficult to be subjected to the liquid distribution. Compared with the existing wet curtain structure, the area with less swirl intensity exceeding 500 is provided, in the embodiment, the swirl intensity of a plurality of areas in and near the collecting concave part 30 exceeds 500, and the evaporative cooling effect of the wet curtain structure is improved.
In the present embodiment, the pooling concave portion 30 extends to both ends of the wet curtain sheet 10. In this way, the above arrangement greatly increases the total collection amount of the collection concave portion 30 on one hand, so that the gas and the liquid are fully contacted and mixed in the collection concave portion 30, and the heat exchange efficiency of the wet curtain structure is improved; on the other hand, the processing of the collecting concave part 30 is easier and simpler, and the processing difficulty is reduced.
Alternatively, the collecting recess 30 is plural, and plural collecting recesses 30 are provided at intervals on the wet curtain sheet 10. Wherein all of the collecting recesses 30 on each wet curtain sheet 10 are located on the same surface. In this way, the water film formed on the surface of the wet curtain sheet 10 is sufficiently contacted and mixed with the gas flowing through the gas flow channel 20, so as to ensure uniform heat exchange effect of the wet curtain sheet 10, and improve the evaporative cooling effect of the wet curtain structure.
In this embodiment, each wet curtain sheet 10 includes a first surface and a second surface that are disposed opposite to each other, and all the collecting recesses 30 on each wet curtain sheet 10 are disposed on the first surface, so that the processing of the collecting recesses 30 is easier and simpler, and the processing difficulty and the processing cost are reduced.
In other embodiments not shown in the drawings, all of the pooling concave portions 30 are provided on the second surface to make processing of the pooling concave portions 30 easier and simpler, and reduce processing difficulty and processing cost.
Alternatively, there are a plurality of pooling recesses 30, and the pooling amounts of the respective pooling recesses 30 are uniform. Thus, the above arrangement makes the total collection amount of the collection concave parts 30 on the single wet curtain sheet 10 more flexibly selected to meet different use demands and working conditions, and also improves the processing flexibility of staff.
In this embodiment, the collection amounts of all the collection recesses 30 are identical, and the sizes of the collection recesses 30 are identical, so that the wet curtain structure is simpler in structure and easy to process and implement, and the processing cost of the wet curtain structure is reduced.
Alternatively, the plurality of pooling recesses 30 is provided, each pooling recess 30 extends in the first direction, and the extending directions of all pooling recesses 30 are uniform. Thus, the above arrangement makes the processing of the collecting recess 30 on the single wet curtain sheet 10 easier and simpler, and reduces the processing cost of the wet curtain structure.
In this embodiment, all the collecting recesses 30 on the single wet curtain sheet 10 extend along the first direction, so that the processing of the collecting recesses 30 is easier and simpler, and the processing cost of the wet curtain structure is reduced.
Optionally, the collecting recess 30 extends along a first direction, and each wet curtain sheet 10 includes a plurality of bending sections sequentially connected along a second direction, and a bending line of each bending section is disposed at a first included angle with respect to the second direction. The second included angle theta between the bending section and the first direction is larger than or equal to 60 degrees and smaller than or equal to 120 degrees. In this way, after the two adjacent wet curtain sheets 10 are adhered together, the above arrangement ensures that at least part of each collecting recess 30 is located in the airflow channel 20, so as to ensure that at least part of the liquid flowing through the collecting recess 30 and at least part of the gas collect in the collecting recess 30, increase the contact area between the gas and the liquid in the wet curtain structure, and ensure that each collecting recess 30 has a collecting effect.
In this embodiment, the bending direction of each bending section is a sine wave direction, and the bending line and the bending surface of each bending section are parallel to each other and perpendicular to the second direction.
In this embodiment, the second angle θ formed between the bending section and the first direction is 90 °, so that the machining of the collecting recess 30 is easier and simpler, and the machining cost and the machining difficulty are reduced.
It should be noted that the value of the second included angle θ is not limited thereto, and may be adjusted according to the working condition and the use requirement. Optionally, the second included angle θ is 65 °, or 70 °, or 75 °, or 80 °, or 85 °, or 95 °, or 100 °, or 105 °, or 110 °, or 115 °.
Alternatively, the pooling concave portion 30 is a groove formed by at least a portion of the wet curtain sheet 10 protruding toward the wet curtain sheet 10 adjacent thereto; alternatively, the grooves may be formed by removing or cutting away at least a portion of the surface of the wet curtain sheet 10. Like this, above-mentioned setting makes the shaping mode that gathers concave part 30 more various to satisfy different user demands and operating mode, also promoted staff's processing flexibility.
In this embodiment, the grooves are formed by the protrusion of at least part of the wet curtain sheet 10 towards the adjacent wet curtain sheet 10, and the grooves are arranged on the first surface of the wet curtain sheet 10, so that turbulence protrusions are formed on the second surface of the wet curtain sheet 10, and the distribution positions of the gas and the liquid on the wet curtain sheet 10 are influenced by the turbulence protrusions, so that the flow direction of the gas flow passing through the gas flow channel 20 is disturbed, the boundary layer between the gas and the liquid is further damaged, the gas and the liquid are mixed more fully, the heat transfer resistance between the gas and the liquid is reduced to a greater extent, the heat and mass transfer between the gas and the water film can be effectively enhanced, and the evaporative cooling effect of the wet curtain structure is effectively improved.
Optionally, the groove width L1 of the groove is 1mm or more and 5mm or less; and/or the groove depth L2 of the groove is more than or equal to 0.5mm and less than or equal to 2mm; and/or the grooves are multiple, and the groove spacing L3 between two adjacent grooves is more than or equal to 5mm and less than or equal to 15mm. Like this, above-mentioned setting makes the size of recess select, the selection of the groove spacing between two adjacent recesses more reasonable, under the prerequisite of guaranteeing wet curtain piece 10 structural strength, has promoted the recess fully and has gathered effect to gas and liquid to ensure that the two carries out abundant heat exchange, promotes wet curtain structure's cooling effect.
In this embodiment, the groove width L1 of the groove is 2mm, the groove depth L2 of the groove is 1mm, and the groove spacing L3 between two adjacent grooves is 10mm. Like this, above-mentioned numerical value is selected and is made the processing of recess easier, simple and convenient, has reduced the processing degree of difficulty of recess, has also promoted wet curtain piece 10's structural strength, has prolonged wet curtain structure's life.
It should be noted that the value of the groove width L1 of the groove is not limited to this, and can be adjusted according to the working condition and the use requirement. Alternatively, the groove width L1 of the groove is 1.5mm, or 1.8mm, or 2.5mm, or 2.8mm, or 3.0mm, or 3.5mm, or 3.8mm, or 4.0mm, or 4.5mm, or 4.8mm.
It should be noted that the value of the groove depth L2 of the groove is not limited to this, and can be adjusted according to the working condition and the use requirement. Alternatively, the groove depth L2 of the groove is 0.8mm, or 1.5mm, or 1.6mm, or 1.8mm.
It should be noted that, the value of the slot spacing L3 between two adjacent grooves is not limited thereto, and can be adjusted according to the working conditions and the use requirements. Alternatively, the slot pitch L3 is 6mm, or 8mm, or 12mm, or 14mm.
In this embodiment, the groove spacing L3 between every two adjacent grooves is the same.
In the embodiment, the grooves are arc-shaped grooves, so that on one hand, the structure of the grooves is simpler, the grooves are easy to process and realize, and the processing cost of the collecting concave parts 30 is reduced; on the other hand, at least part of liquid and at least part of gas flowing through the grooves are fully collected and contacted in the grooves, so that the two can be subjected to full heat exchange, and the evaporative cooling effect of the wet curtain structure is effectively improved.
In this embodiment, the thickness of the groove wall of the groove is consistent with the thickness of each wet curtain sheet 10, so that the overall structural strength of the wet curtain structure is improved, and the service life of the wet curtain structure is prolonged.
Alternatively, in each wet curtain sheet 10, the plurality of collecting recesses 30 is provided, and the area S1 occupied by all the collecting recesses 30 and the total area S of the wet curtain sheet 10 satisfy: s1 is less than or equal to 0.5S. Thus, the above arrangement sufficiently improves the collection effect of the grooves on the gas and the liquid on the premise of ensuring the structural strength of the wet curtain sheet 10, so as to ensure the sufficient heat exchange between the grooves and the liquid and improve the cooling effect of the wet curtain structure.
In the embodiment, CFD (Computational Fluid Dynamics) simulation (computational fluid dynamics simulation) is utilized to verify that the wet curtain structure in the embodiment can effectively increase the gas-liquid interface area and the vortex strength of the flow field in the wet curtain structure, and further improve the integral evaporative cooling effect of the wet curtain structure.
Table 1 parameter comparison table of the existing wet curtain structure and the wet curtain structure in the present embodiment
As can be derived from table 1, compared with the existing wet curtain structure, the gas-liquid interface area of the wet curtain structure in this embodiment is increased by 43.96%, the average vortex strength is increased by 45.11%, and according to the previous research conclusion, the heat and mass transfer effects of air and a water film are increased by the increase of the two, so that the evaporative cooling effect of the wet curtain structure is improved.
The present application also provides a heat exchange system (not shown) comprising the wet curtain structure described above.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
the wet curtain structure comprises a plurality of wet curtain sheets, and two adjacent wet curtain sheets are arranged in a staggered manner to form an air flow channel. Among the plurality of wet curtain sheets, at least one wet curtain sheet has a collecting recess facing a surface of the wet curtain sheet adjacent thereto. In this way, in the operation process of the heat exchange system, liquid flows on the wet curtain sheet and forms a water film, gas flows in the gas flow channel, the liquid and the gas are contacted in the gas flow channel and exchange heat, at least part of the liquid flowing through the collecting concave part and at least part of the gas are collected in the collecting concave part, and then the contact area between the gas and the liquid in the wet curtain structure is increased, so that the two can exchange heat fully, and the problem of poor cooling effect of the wet curtain structure in the prior art is solved. Meanwhile, the gas flowing through the collecting concave part can be turbulent or vortex at the collecting concave part to destroy the boundary layer between the gas and the liquid, so that the gas and the liquid are mixed more fully, the heat transfer resistance between the gas and the liquid is reduced to a great extent, the heat transfer and mass transfer between the gas and a water film can be effectively enhanced, and the evaporation cooling effect of the wet curtain structure is effectively improved.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wet curtain structure comprising:
a plurality of wet curtain sheets (10), wherein two adjacent wet curtain sheets (10) are staggered to form an air flow channel (20), so that air entering through the air flow channel (20) contacts with liquid attached on the wet curtain sheets (10) and exchanges heat;
among the plurality of wet curtain sheets (10), at least one surface of the wet curtain sheet (10) facing the adjacent wet curtain sheet (10) is provided with a collecting concave portion (30), at least part of liquid and at least part of gas flowing through the collecting concave portion (30) are collected in the collecting concave portion (30), and then the contact area between the gas and the liquid in the wet curtain structure is increased.
2. Wet curtain structure according to claim 1, characterized in that the collecting recess (30) extends to both ends of the wet curtain sheet (10).
3. Wet curtain structure according to claim 1, characterized in that the collecting recesses (30) are plural, and plural collecting recesses (30) are provided at intervals on the wet curtain sheet (10); wherein all of the collecting recesses (30) on each of the wet curtain sheets (10) are located on the same surface.
4. Wet curtain structure according to claim 1, characterized in that the collecting recesses (30) are plural, and the collecting amounts of the collecting recesses (30) are uniform.
5. Wet curtain structure according to claim 1, characterized in that the collecting recesses (30) are plural, each collecting recess (30) extending in a first direction, the extending directions of all collecting recesses (30) being identical.
6. Wet curtain structure according to claim 1, characterized in that the collecting recess (30) extends along a first direction, each wet curtain sheet (10) comprises a plurality of bending sections connected in sequence along a second direction, and the bending lines of each bending section are arranged at a first included angle with the second direction; the second included angle theta between the bending section and the first direction is larger than or equal to 60 degrees and smaller than or equal to 120 degrees.
7. Wet curtain structure according to claim 1, characterized in that the collecting recess (30) is a groove formed by at least part of the wet curtain sheet (10) protruding towards the wet curtain sheet (10) adjacent thereto; alternatively, the grooves are formed by removing or cutting at least part of the surface of the wet curtain sheet (10).
8. The wet curtain structure of claim 7 wherein the wet curtain structure comprises,
the groove width L1 of the groove is more than or equal to 1mm and less than or equal to 5mm; and/or the number of the groups of groups,
the depth L2 of the groove is more than or equal to 0.5mm and less than or equal to 2mm; and/or the number of the groups of groups,
the number of the grooves is multiple, and the groove spacing L3 between two adjacent grooves is greater than or equal to 5mm and less than or equal to 15mm.
9. Wet curtain structure according to claim 7, characterized in that, on each wet curtain sheet (10), the collecting recesses (30) are plural, and the area S1 occupied by all the collecting recesses (30) and the total area S of the wet curtain sheet (10) satisfy: s1 is less than or equal to 0.5S.
10. A heat exchange system comprising a wet curtain structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210761649.XA CN117366708A (en) | 2022-06-30 | 2022-06-30 | Wet curtain structure and heat exchange system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210761649.XA CN117366708A (en) | 2022-06-30 | 2022-06-30 | Wet curtain structure and heat exchange system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117366708A true CN117366708A (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210761649.XA Pending CN117366708A (en) | 2022-06-30 | 2022-06-30 | Wet curtain structure and heat exchange system with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654606A (en) * | 2022-09-09 | 2023-01-31 | 珠海格力电器股份有限公司 | Wet curtain structure and heat exchange system with same |
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- 2022-06-30 CN CN202210761649.XA patent/CN117366708A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654606A (en) * | 2022-09-09 | 2023-01-31 | 珠海格力电器股份有限公司 | Wet curtain structure and heat exchange system with same |
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