CN106595380B - A kind of cooling tower ion wind water collector - Google Patents

A kind of cooling tower ion wind water collector Download PDF

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Publication number
CN106595380B
CN106595380B CN201611019800.3A CN201611019800A CN106595380B CN 106595380 B CN106595380 B CN 106595380B CN 201611019800 A CN201611019800 A CN 201611019800A CN 106595380 B CN106595380 B CN 106595380B
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China
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water
cooling tower
electrode
receipts
rope
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CN106595380A (en
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杨兰均
张立
王维
詹唯
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Xian Jiaotong University
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Xian Jiaotong University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00Component parts of trickle coolers
    • F28F25/02Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00Component parts of trickle coolers
    • F28F2025/005Liquid collection; Liquid treatment; Liquid recirculation; Addition of make-up liquid

Abstract

The invention discloses a kind of cooling tower ion wind water collectors, water collector including being lifted on eminence inside Natural Draft Cooling Tower in Power Plant with the rope of tensioning, the water collector receives water module close-packed arrays by several, and it is lifted with rope along cooling tower tower top, the receipts water module is made of a bracket and several receipts water units, receipts water unit is hexagonal prisms structure, several are received after water unit repeats parallel connection and depend on bracket, there is discharge electrode inside each receipts water unit and receive water electrode, discharge electrode is receiving water unit center vertically.The present invention can effectively recycle the evaporation water damage and wind water damage of thermal power plant's cooling tower, reduce the operation cost of thermal power plant, and bring huge environmental benefit.

Description

A kind of cooling tower ion wind water collector
Technical field
The present invention relates to a kind of thermal power plant's cooling tower water saving fixtures, are lifted on cooling tower using rope more particularly to a kind of Cellular, the modularization ion wind water saving fixtures at top.
Background technique
Thermal power plant consumes great lot of water resources every year." Coal Industrial is such as the publication of in March, 2016 International Environmental Protection tissue Green Peace What aggravation global water crisis report " it points out, global coal motor group consumes the basic water demand that fresh water is more than 1,000,000,000 people every year.Money Only China in 2011 uses thermal power plant's water consumption of wet cooling tower to be up to 41.6 hundred million tons for material display, accounts for about national fresh water consumption The 1.5% of total amount.Wherein cooling tower circulation loss water accounts for the 65%~75% of full factory's water consumption, these water damage mostly from cold But tower top end loss in the form of water mist.
Existing cooling tower water-saving technology is deficienter, mainly has: installing mechanical water collection device to reduce windage loss, drops Saturated moist air temperature makes its part Water vapor condensation reduce evaporation loss above low cooling column water receiver, improves recirculated cooling water Concentration rate with reduce blowdown loss etc..Above method there is water-saving results it is undesirable, with high costs the disadvantages of, therefore, The present invention proposes a kind of new water-saving technology, to overcome deficiency existing for above-mentioned water-saving technology.
Relatively broad research is had been obtained for currently with the technology that principle of corona discharge generates ion wind.Ion wind is Refer to that high voltage excites severe non-uniform electric field on deep camber electrode, generates a large amount of molecules of strong electric field region and ionize, and Under the action of electric field, charged particle makees displacement, collides in motion process with the uncharged neutral molecule of outskirt, on the one hand certainly The charge of body shifts, and makes like charges on neutral particle band, and another aspect part kinetic energy passes to neutral molecule, makes one It rises and does displacement, ultimately form large-scale jet stream movement, i.e. generation ion wind.The technology different fields all It is applied, such as strengthens heat dissipation, electrostatic precipitation, the control of air fluid and aero propulsion, however ion wind principle is used for It is uncommon in cooling tower water-saving technology.
Ion wind can be formed by applying high voltage on deep camber electrode, when the vapor in cooling tower water-steam is logical When crossing ion wind region, it is induced coring under electric field, electron ion effect, forms drop of floaing, itself exist with cooling tower water-steam Drop be recovered together.By one multi-thread-tubular of design or spininess-tubular receipts water unit, can be realized to steam height The recycling of effect, and device operation power is extremely low.Water unit parallel combination will be further received, an area coverage can be formed about The receipts water module of 2m × 3m;The arrangement of water module array will be received again, be mounted at the top of cooling tower, be can be realized to cooling tower tower top The abundant recycling of covering and steam comprehensively.Also, in module design, the structure of laminated insulation can be used, so that device is exhausted Edge is reliable.In module installation, the mounting means lifted using multilayer rope, i.e. mitigation weight, and replacement convenient to overhaul.Remaining Ground can make device obtain very in performance in all respects using innovative designs such as moisture film electrode, a variety of power supply pressuring methods Good guarantee.
Summary of the invention
The phenomenon that there are a large amount of water wastes for thermal power plant's cooling tower, the present invention provides a kind of cooling tower ion winds to receive water Device is cellular, modular segment water installations.The device has the characteristics that water recovery efficiency is high, low in energy consumption, can effectively recycle The evaporation water damage and wind water damage of thermal power plant's cooling tower, reduce the operation cost of thermal power plant, and bring huge environmental benefit.
To achieve the above object, this invention takes following technical solutions to be achieved:
A kind of cooling tower ion wind water collector, including being lifted in Natural Draft Cooling Tower in Power Plant with the rope of tensioning The water collector of portion's eminence, the water collector receive water module close-packed arrays by several, and with rope along cooling tower tower top It lifting, the receipts water module is made of a bracket and several receipts water units, and receipts water unit is hexagonal prisms structure, Several are received after water unit repeats parallel connection and depend on bracket, have discharge electrode inside each receipts water unit and receive water electrode, put Electrode is receiving water unit center vertically.
It is connected with recycle-water converging device in cooling tower bottom, the recycle-water converging device is mounted in cooling tower mechanical Above formula dehydrater, converging device is multilayered structure, and generally 2~3 layers, each layer is arranged by multiple rows of V slot, between V slot There is spacing, be staggered on upper and lower level V slot space, is looked down from device surface, V slot finally should sufficiently cover water droplet and may fall into Range, converging device recycling water finally converged to outside cooling tower through pipeline.
The receipts water unit is hexagonal prism shape, receives water unit and is made of discharge electrode and receipts water electrode, receives water power extremely Receive the outer wall of water unit, wall surface is equally spaced the bare exposed conductor of 1~2cm wide, and an electrode is collectively formed in conductor and moisture film, finally Ground connection, discharge electrode, which is vertically installed at, receives water unit center, by high pressure zone in module bracket (it is realize in parallel, eventually by Current-limiting resistance is connected to high voltage power supply, receives water electrode and uses PVDF material, electro-conductive glass steel or other materials.
Discharge electrode is multiple line structure or arista electrode, and the multiple line structure is more lametta uniform parallel arrangements It on a concentric circles, and depends on discharge electrode pillar, direction is parallel with pillar, and in the arista electrode, prickle is depended on It on discharge electrode pillar, is stretched out in the horizontal plane towards 3~4 directions, whole arrangement rises along helix, multi-thread and prickle material Material is using stainless steel, the outer lead-sheathing of nickel-chromium steel, titanium palldium alloy, titanium, tungsten or other conductive materials.
The bracket is divided into three layers, and middle layer is ground plane, is made of cellular receipts water electrode;Top layer and lowest level It insulate between high pressure zone and receipts ground connection, bracket uses glass for high pressure zone for supporting discharge electrode and powering to discharge electrode Steel or other materials, package silicon rubber improves waterproof performance on bracket.
The high voltage power supply can be positive polarity DC high pressure, negative polarity d. c high pressure, ac high voltage source or pulse electricity Source.
The rope Orthogonally arrangement, is distributed, rope tension along tower top, is divided into two layers, above one layer for lifting rope, One layer is maintenance rope below, and the lifting rope and maintenance rope are stainless steel cable, nylon rope or other ropes.
The present invention is used for the high efficiente callback of thermal power plant's cooling tower circulation loss water, recycles with existing mechanical dehydrater water Device is compared, and is had the advantage that
1. recycling using ion wind to cooling tower water-steam, the water rate of recovery can effectively improve.One side ion wind shape At wind field in be vortexed containing a large amount of, colliding with each other for drop in steam can be driven, improve the water rate of recovery;On the other hand, by force Electric field and charged particles all can serve as the nuclei of condensation of vapor, effectively facilitate vapor liquefaction and water clusters increase, make to account for The evaporation water of main part, which damages, in cooling tower water damage is recycled.
2. using modularized design structure, each module independent operating is not interfere with each other, and is also convenient for transport, installation and replacement.Mould Block uses honeycomb type structure, and structure is reliable;The design method of laminated insulation, the selection of bracket material all ensure that under adverse circumstances The reliability of insulation.
3. device is mounted on tower top, on the one hand due to can constantly liquefy in steam uphill process, device is installed Have receipts Wat er benefit best in tower top;On the other hand be conducive to vapor and outside air heat exchange condenses, to improve water recycling Effect, and be easily installed.
4. lifting when device is installed using rope, installation weight is not only alleviated, but also reduce installation cost.In tower top Add a possibility that one layer of rope ensure that device daily maintenance.
5. the water that water saving fixtures are collected into can produce higher economy close to pure water, to the recycling of these water Benefit.
6. it receives and carries out conduction using the moisture film spontaneously formed when combining and receiving water on water electrode, not only alleviator weight, and And save the cost, without etching problem.
Detailed description of the invention
Fig. 1 is discharge electrode schematic diagram of the invention;
A left side is arista electrode schematic diagram, and the right side is 4 line discharge electrode schematic diagrames.
Fig. 2 is receipts water unit schematic diagram of the invention.
Fig. 3 is receipts water module diagram of the invention.
Fig. 4 is the schematic diagram of cooling tower water recyclable device mounting means of the invention.
Fig. 5 is recycle-water converging device schematic diagram of the invention.
Fig. 6 is water collector structural schematic diagram of the invention.
In FIG. 1 to FIG. 5: 1, discharge electrode pillar;2, arista electrode prickle point;3, line electrode line;4, high voltage power supply;5, it limits Leakage resistance;6, connecting wire;7, discharge electrode;8, bare exposed conductor;9, moisture film;10, grounding electrode (receiving water electrode);11, water is received Module bracket;12, water unit is received;13, high pressure zone;14, ground plane;15, water module is received;16, rope is lifted;17, cooling tower Wall;18, rope is used in maintenance;19, recycle-water converging device bracket;20, V slot;21, filler support;22, mechanical dehydrater;23, Intersect column;24, water collector.
Specific embodiment
The contents of the present invention are described in further detail with reference to the accompanying drawing.
A kind of array arrangement, cellular, the modular water recyclable device being lifted at the top of cooling tower.Including being mounted on large size The receipts water module on natural draft cooling tower top and the water recycling converging device for being mounted on bottom.The receipts water module is by several A receipts water unit repeats formation module in parallel, and module again arrange and be lifted on tower top with rope by array.There is electric discharge electricity on unit The receipts water electrode of pole and ground connection will receive water unit by modularization, again array arrangement, will be lifted at the top of cooling tower with rope, most At the top of whole large area covering cooling tower.
The receipts water unit is hexagonal prism shape, mainly by forming for discharge electrode and receipts water electrode.Water power is received extremely to receive The outer wall of water unit, the bare exposed conductor of cloth one fixed width, conductor are finally grounded on wall surface.
The discharge electrode is multiple line structure or arista electrode.Multi-thread or prickle relies on electrode branch in two kinds of structure electrodes Frame setting.The discharge electrode, which is vertically installed at, receives water unit center, in parallel by the high pressure zone in module, is finally connected to high pressure Power supply.It receives water electrode and uses PVDF material, electro-conductive glass steel or other materials.
It is mounted on and is received in water module bracket after multiple receipts water units are in parallel, it is to receive water list that bracket the upper and lower, which are laid with conductor, First discharge electrode power supply.
The high voltage power supply is direct current, exchange or the pulse power, and output voltage virtual value is 20~60kV.
The receipts water module bracket is made of glass-reinforced plastic material, the more demanding insulation performance of pillar.
Using the tensioning rope of more Orthogonally arrangements by several receipts water module hoistings at the top of cooling tower, receive water module along cold But column overhead close-packed arrays, module discharge electrode support direction are vertical.
The recycle-water converging device is mounted in cooling tower above mechanical dehydrater, and relies on mechanical dehydrater Installation.
Converging device is multilayered structure, and generally 2~3 layers, each layer is arranged by multiple rows of V slot, by certain between V slot Spacing.It is staggered, is looked down from device surface, V slot finally should sufficiently cover what water droplet may be fallen on upper and lower level V slot space Range.The water of device recycling finally converges to outside cooling tower through pipeline, is utilized.
Water recycling converging device, which is not installed, can also complete the water-saving function of cooling tower.
As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of cooling tower ion wind water collector of the invention: including being lifted on The water collector at 17 top of Natural Draft Cooling Tower in Power Plant, and it is mounted on the recycle-water converging device 19 of cooling tower bottom. The water collector is received 15 close-packed arrays of water module by several and is formed, and receiving water module 15 includes a bracket 11 and several A receipts water unit 12.Receipts water unit 12 is can be to the minimum unit that steam is recycled.Receive water unit 12 repeat it is in parallel after according to It invests on bracket 11, there is discharge electrode 7 inside each receipts water unit 11 and receives water electrode 10, discharge electrode accesses high voltage power supply 14, water electrode ground connection is received, ion wind can be formed in a small range using high voltage is applied in discharge electrode and receipts water power interpolar, And then to being recycled by steam in the region.Water module 15 will be received with rope 16 along large-scale cooling stack tower Close-packed arrays lifting is pushed up, the area that all steam pass through is covered, can be realized and cooling tower loss steam effectively recycled Function.
As shown in Figure 1, the discharge electrode includes two kinds of forms of arista electrode and multi-thread electrode.Multi-thread electrode structure is 3 ~53 uniform parallels of line are arranged on the concentric circles of 3~4cm of diameter, multi-thread to depend on electrode support 1, direction and pillar 1 In parallel, line footpath is 0.05mm~0.5mm.Arista electrode prickle depends on electrode support 1, bur needle on vertical plane with pillar It is in 60 °~90 ° of angle between 1, is stretched out in the horizontal plane towards 3~4 directions, whole arrangement can helically rises, bur needle Length is 1.5~2cm, and density is 1.5cm/ root~4cm/ root.Arista electrode puncture tip is sharp enough, and radius of curvature generally exists 200 μm or less.The outer lead-sheathing of stainless steel, nickel-chromium steel, titanium palldium alloy, titanium, tungsten or other materials can be used in multi-thread and prickle material Production.
As shown in Fig. 2, receiving water unit structure is hexagonal prism shape, hexagonal prisms height 20cm~50cm, outside the hexagon of bottom surface Connecing circular diameter is 20cm~40cm.Water unit 12 is received mainly by forming for discharge electrode 7 and receipts water electrode 10.Receiving water electrode 10 is The outer wall of water unit 12 is received, the bare exposed conductor 8 of cloth certain amount width about 1~2cm, conductor 8 are collectively formed with moisture film 9 on wall surface One electrode, it is final to be grounded.Moisture film 9 is the water membrane of device spontaneous attachment on water vapour environment bottom crown, is had centainly Electric conductivity.Discharge electrode 7, which is vertically installed at, receives 12 center of water unit, realizes parallel connection, most terminating by the high pressure zone 13 in module To high voltage power supply 4.Water electrode 10 is received using PVDF material, electro-conductive glass steel or other materials.
As shown in figure 3,15 height of receipts water module is 30~70cm, width is 1.5m~3m, and length is 2m~5m.It receives It is three layers that water module 15, which is divided, and middle layer is ground plane 14, is made of cellular receipts water electrode 10;Top layer and lowest level are height Pressurized layer 13, for supporting discharge electrode 7 and powering to discharge electrode 7.It insulate between high pressure zone 13 and ground plane 14, passes through module Structure bracket realize support.Bracket uses glass reinforced plastic or other materials, and silicon rubber can be wrapped up on bracket improves waterproof performance.
As shown in figure 4, the method for the rope lifting, which refers to, is lifted on cooling tower tower top for device with the rope 16 of tensioning. Rope is generally at two layers or two layers or more.One layer of rope is lifting rope 16, is lifted on tower top for that will receive water module 15, in addition One layer is maintenance rope 18, for installing moveable inspection platform, to realize the daily maintenance to device, replacement.It is described Rope be generally stainless steel cable, nylon rope or other ropes.
As shown in figure 5, the recycle-water converging device 19 is mounted in cooling tower mechanical 22 0.5~1m of top of dehydrater Eminence, and mechanical dehydrater 22 is relied on to install.Converging device is multilayered structure, and generally 2~3 layers, each layer is by multiple rows of V Slot 20 arranges, by a fixed spacing between V slot.General V groove depth is 15~20cm, and width is 15~20cm, spacing 12 ~17cm is between layers 30~45cm.Since V slot is to look down V slot from surface for recycling the drop fallen The range that water droplet may be fallen into should sufficiently be covered.V slot also has the function of guidance and convergence water flow, therefore needs when the arrangement of V slot Guarantee that water flow is continuous, and finally converged to outside cooling tower through pipeline, is utilized.
Water recycling converging device, which is not installed, can also complete the water-saving function of cooling tower.
It is different for different cooling towers, the device of the invention concrete specification.It, can also according to the difference of operating condition To apply various forms of voltages on device.High voltage power supply can be 20kV~40kV positive polarity high direct voltage, 20kV~40kV Negative polarity d. c high pressure or virtual value 20kV~40kV ac high voltage source, virtual value be 20kV~40kV the pulse power, AC-DC power supply etc..
Below by taking air outlet diameter is the cooling tower of 54.652m as an example:
Water module is received shown in production Fig. 3 first.The long 3m of water module, wide 2m are received, is made of 12 parallel connection of receipts water unit, therefore first Receipts water unit in parallel is made, forms complete ground plane 14, ground plane is mounted in module bracket 11.Length is installed again on bracket The discharge electrode 7 of 35cm.Discharge electrode is 4 line electrodes, and each discharge electrode 7, which is all located at, to be received among water unit 12.It will electric discharge electricity Pole 7 is connected together as ground plane by being connected together as high pressure zone 13, the bare exposed conductor on grounding electrode, can shape At a complete receipts water module.Receive the pass that the insulation between water module mesohigh layer 13 and ground plane 14 is device reliability service Key, therefore silicon rubber can be wrapped up using each interfloor distance of increase, on bracket suitable position spraying waterproof coating, bracket leg Etc. methods heavy insulation.
Two layers of stainless steel cable 16 shown in cooling tower top installation diagram 4.Orthogonally arrangement, spacing are rope in the horizontal plane 3m, arc sag 0.5m.The receipts water module 15 made is lifted on upper layer lifting rope 16, module requires preferable levelness, But place height does not require identical.The mountable moveable maintenance platform of one or more on lower layer's maintenance rope 18, It is safeguarded for maintenance repair.
It is adjustable that all high pressure zones 13 for receiving water modules 15 by cable 6 through current-limiting resistance 5 are connected to 20kV~40kV negative polarity In high voltage power supply 4.Current-limiting resistance can be used to carry out device certain protection.Switch is separately provided to divide in each receipts water module Not Kong Zhi power supply cut-off.Ground plane 14 is grounded by stainless steel cable 16, or the wired earth by being separately provided.
Recycle-water converging device 19 is installed at 1m above mechanical dehydrater 22 in cooling tower.Device depends on existing machinery The bracket 21 of formula dehydrater is set up.Converging device main body be two layers staggeredly, the V slots 20 of opening upwards, V groove depth is 20cm, wide Degree is 20cm.V separation is 15cm, and upper layer and lower layer spacing 30cm.V slot is for recycling the water droplet fallen, therefore from surface The range that water droplet may be fallen into should sufficiently be covered by looking down V slot.Water drippage such as V slot, is finally converged in pipeline simultaneously by end again It is collected.The water water quality being collected into is good, can be used for other purposes.
So that cooling tower water-steam is risen damping device when use, moisture film is formed on ground connection pole plate, then again on device Gradually apply high voltage, makes it into normal operating condition.
In the specific implementation, discharge electrode 7 is changed to arista electrode, equally may be implemented to cooling tower loss steam into The function of row recycling.
In the specific implementation, uneasy dress recycle-water converging device 19, similarly can achieve the water-saving purpose of cooling tower.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that A specific embodiment of the invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off Under the premise of from present inventive concept, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by institute Claims of submission determine scope of patent protection.

Claims (3)

1. a kind of cooling tower ion wind water collector, including being lifted on Natural Draft Cooling Tower in Power Plant (17) with the rope of tensioning The water collector of internal eminence, it is characterised in that: the water collector by several receive water module (15) close-packed arrays, and with restrict Rope (16) is lifted along cooling tower tower top, and the receipts water module (15) is by a bracket (11) and several receipts water lists First (12) form, and receiving water unit (12) is hexagonal prisms structure, several are received after water unit (12) repeat parallel connection and depend on bracket (11) on, there is discharge electrode (7) inside each receipts water unit (12) and receive water electrode (10), discharge electrode (7) is receiving water vertically Unit (12) center, the receipts water unit (12) are hexagonal prism shape, receive water unit (12) by discharge electrode (7) and receive water electrode (10) it forms, receives the outer wall that water electrode (10) be receipts water unit, wall surface is equally spaced the bare exposed conductor (8) of 1~2cm wide, conductor (8) an electrode is collectively formed with moisture film (9), final to be grounded, discharge electrode (7), which is vertically installed at, receives water unit (12) center, Parallel connection is realized by the high pressure zone (13) in module bracket, is connected to high voltage power supply (4) eventually by current-limiting resistance (5), and water power is received Pole (10) uses PVDF material, electro-conductive glass steel material, is connected with recycle-water converging device (19) in cooling tower bottom, described Recycle-water converging device (19) is mounted in cooling tower above mechanical dehydrater (22), and converging device (19) is multilayered structure, Each layer is arranged by multiple rows of V slot (20), there is spacing between V slot, and upper and lower level V slot (20) is spatially staggered, just from the device Top is looked down, and V slot finally should sufficiently cover the range that water droplet may be fallen into, and the water of converging device (19) recycling is finally through pipeline It converges to outside cooling tower.
2. a kind of cooling tower ion wind water collector according to claim 1, it is characterised in that: the bracket (11) is divided into Three layers, middle layer is ground plane (14), is made of cellular receipts water electrode (10);Top layer and lowest level are high pressure zone (13), it for supporting discharge electrode (7) and powering to discharge electrode (7), insulate, holds in the palm between high pressure zone (13) and receipts ground connection (14) Frame (11) uses glass reinforced plastic, and package silicon rubber improves waterproof performance on bracket.
3. a kind of cooling tower ion wind water collector according to claim 1, it is characterised in that: the orthogonal row of the rope Cloth is distributed along tower top, rope tension, is divided into two layers, above one layer for lifting rope (16), below one layer for maintenance rope (18), the lifting rope (16) and maintenance rope (18) are stainless steel cable, nylon rope.
CN201611019800.3A 2016-11-17 2016-11-17 A kind of cooling tower ion wind water collector Active CN106595380B (en)

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Publication number Priority date Publication date Assignee Title
CN107449315A (en) * 2017-07-27 2017-12-08 江苏博美德环保科技有限公司 Double-curve cooling column water collection device
CN111375490B (en) * 2020-01-16 2021-06-29 华中科技大学 Demisting and water collecting device and method based on coupling of ion wind and vibrating wire grid
CN112611240B (en) * 2020-12-10 2022-07-19 武汉大学 Device and method for enhancing condensation heat exchange by utilizing ion wind

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