CN107179009A - A kind of gas-gas heat exchange device for the solidifying water that dispersed fog for cooling tower - Google Patents

A kind of gas-gas heat exchange device for the solidifying water that dispersed fog for cooling tower Download PDF

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Publication number
CN107179009A
CN107179009A CN201710401446.9A CN201710401446A CN107179009A CN 107179009 A CN107179009 A CN 107179009A CN 201710401446 A CN201710401446 A CN 201710401446A CN 107179009 A CN107179009 A CN 107179009A
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CN
China
Prior art keywords
gas
dry air
damp
air
heat
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Pending
Application number
CN201710401446.9A
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Chinese (zh)
Inventor
谭厚章
刘鹤欣
刘兴
杜勇乐
萧嘉繁
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Xian Jiaotong University
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Xian Jiaotong University
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Priority to CN201710401446.9A priority Critical patent/CN107179009A/en
Publication of CN107179009A publication Critical patent/CN107179009A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/14Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
    • 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
    • F28F25/10Component parts of trickle coolers for feeding gas or vapour
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/14Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
    • F28C2001/145Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange with arrangements of adjacent wet and dry passages

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A kind of gas-gas heat exchange device for the solidifying water that dispersed fog for cooling tower of the present invention, the solidifying water effect of simple in construction, fog dispersal is good, with replicability.The present invention is sequentially disposed with axial flow blower, flaring passage and gas-gas heat exchanger along cold dry air flow direction.Axial flow blower is used to ensure cold dry air flow and overcomes flow passage resistance force of waterproof;Flaring passage is used for connection of axial flow fan and gas-gas heat exchanger cold dry air import;Gas-gas heat exchanger is made up of cold dry air runner and damp-heat air runner, for providing the heat exchange area of septate heat transfer, and is strengthened cold dry air and mixed with damp-heat air and promote the liquid water condensation in cooling tower in damp-heat air.The cold dry air runner and humid air passage of gas-gas heat exchanger are formed by heat exchanger plates arranged for interval, and heat exchanger plates side cross-section is broken line type or undaform shape, and the top of dry and cold passage offers rectangular opening.

Description

A kind of gas-gas heat exchange device for the solidifying water that dispersed fog for cooling tower
Technical field
The present invention relates to industry cooling equipment technical field, the gas-gas heat exchange of specially a kind of solidifying water that dispersed fog for cooling tower Device.
Background technology
Cooling tower turns into industrial processes because producing a large amount of when there are problems that evaporated water is huge and runs In one of engineered main object.Water resource is only the 25% of world average level per capita for China, and wherein industrial cycle is cold But the 60~80% of industrial water total amount is accounted for water.It is huge that white haze produced by cooling tower outlet does not only result in evaporated water, and And the precursor generated as haze, cause the atmosphere quality in industrial park and city to decline, while also damaging enterprise certainly The environmental image of body.Thus, it is ensured that on the basis of cooling tower cooling effectiveness, realize that the solidifying water function of fog dispersal is that current engineering circles are urgent Need the vital task solved.
Authorization Notice No. discloses a kind of " the solidifying water demisting environmental protection dress of depth for CN103727805B Chinese patent document Put ", the device includes a kind of heat-exchanger rig, and the heat-exchanging component arranged by multiple rows of rhombus is constituted, and its heat-exchanging component is by each closed The passage of heat and cold passage alternately constitute, each passage be made up of adjacent heat exchanger plates and by be bonded post engage.The apparatus structure Complex, heat exchange area is smaller and heat exchanger rhombus arrangement causes resistance larger, thus solidifying water is inefficient and blower fan consumes energy It is larger.
Application publication number discloses " one kind fog dispersal water saving cooling tower device " for CN106403637A Chinese patent document, The heat exchange module of the device is disposed with a plurality of lateral gas passages and longitudinal air flow path, and described heat exchange module is changed by polylith Film is overlapped mutually composition.Device guiding cold air enters centre of cooling column, but cooling tower axle by lateral gas passages Flow fan is smaller in central area blast, is unfavorable for the mixed heat transfer of cold dry air and damp-heat air in cooling tower, thus fog dispersal Solidifying water effect is relatively low.
The content of the invention
For problems of the prior art, the present invention provides a kind of gas-gas heat exchange dress for the solidifying water that dispersed fog for cooling tower Put, the solidifying water effect of simple in construction, fog dispersal is good, with replicability.
The present invention is achieved through the following technical solutions:
A kind of gas-gas heat exchange device for the solidifying water that dispersed fog for cooling tower, including axial flow blower, flaring passage and gas-gas heat exchange Device;
Described gas-gas heat exchanger includes the orthogonal cold dry air runner of gas flow and damp-heat air runner, some Individual cold dry air runner and several damp-heat air runners are adjacently positioned in alternating;Gas-gas heat exchanger is located inside cooling tower, its Damp-heat air import is connected to demister top in cooling tower, and hot and humid air outlet is connected with cooling tower outlet;
Described cold dry air runner and damp-heat air runner is combined into by heat exchanger plates arranged for interval, and heat exchanger plates are along wet Hot-air flow direction is set in on-plane surface.
Described axial flow blower is sequentially arranged along cold dry air flow direction with flaring passage and connected in cold dry air runner Front end;Axial flow blower and flaring flue are arranged at cooling tower exterior side wall.
It is preferred that, the front end of cold dry air runner is cold dry air import, and rear end is cold dry air central outlet;Dry and cold sky The side that flow channel is located at hot and humid air outlet offers some rectangular openings, is used as cold dry air rectangle hole exits.
Further, described heat exchanger plates incline positioned at the edge of damp-heat air inlet side to cold dry air central outlet direction Oblique and slanted angle α is 0.5~2 °.
It is preferred that, the heat exchanger plates are in broken line type or undaform shape along damp-heat air flow direction.
It is preferred that, the single cold dry air width of flow path a of described gas-gas heat exchanger and single damp-heat air width of flow path b expires The mathematical relationship of foot is 0.8a≤b≤2a.
It is preferred that, described heat exchange plate thickness is that δ is 0.4~0.8mm.
Compared with prior art, the present invention has following beneficial technique effect:
The present invention uses water as circulating coolant based on cooling tower, by that will carry the recirculated water of heat with flowing cold sky Gas is directly contacted and mixed to realize the general principle of heat exchange, while considering the damp and hot mechanical change of enthalpy and liquid of damp-heat air The dynamic process of drop reunion collision, finally realizes that water function is coagulated in the fog dispersal of cooling tower.Cold dry air and damp-heat air are by changing Hot plate realizes that thermodynamic state is adjusted, damp-heat air temperature in reduction cooling tower, and the heat exchanger plates flowed to along damp-heat air are set For on-plane surface, promote the progress of drop reunion crash dynamics process in damp-heat air, complete the cooperation of fog dispersal process to enter The preliminary heating power of row coagulates water, i.e., damp-heat air water capacity is reduced to promote the formation and condensation of aqueous water.
Further, the present invention ensures the ventilation of cold dry air by axial flow blower, and cold dry air is first with damp-heat air First pass through heat exchanger plates and carry out septate heat transfer, improve after cold dry air temperature, the dry and cold sky discharged by cold dry air rectangle hole exits Gas carries out the damp and hot power change procedure of humid air property in mixed heat transfer, adjustment cooling tower with damp-heat air, promotes discharge in cooling tower Visible plumage fog-zone of the thermodynamic state of air away from the wet curve of humid air saturation enthalpy, finally realizes that the entirety of cooling tower white haze disappears Remove.
Further, the present invention along the heat exchanger plates that damp-heat air is flowed to by being set to setting for broken line type or undaform shape The design of meter and channel size, preferably promotes the progress of drop reunion crash dynamics process in damp-heat air, and passes through The angle of inclination of setting is rational to discharge condensed liquid water from dry air central outlet, it is ensured that gas-gas heat exchange apparatus system is just Often operation and the solidifying water function of realization fog dispersal.
Brief description of the drawings
Fig. 1 is the structural representation of device of the present invention.
Fig. 2 is the main view direction schematic diagram of device of the present invention.
Fig. 3 is the schematic cross-section of gas-gas heat exchanger broken line type heat exchanger plates of the present invention.
Fig. 4 is the schematic cross-section of gas-gas heat exchanger undaform heat exchanger plates of the present invention.
Fig. 5 is the principle schematic of the solidifying water of drop of the present invention reunion collision.
In figure:Axial flow blower 1, flaring passage 2, gas-gas heat exchanger 3, cold dry air runner 4, damp-heat air runner 5, heat exchange Plate 6, rectangular opening 7.
Embodiment
With reference to specific example, the present invention is described in further detail, it is described be explanation of the invention without It is to limit.
As shown in figure 1, apparatus of the present invention are sequentially disposed with axial flow blower 1, the and of flaring passage 2 along cold dry air flow direction Gas-gas heat exchanger 3.Wherein, gas-gas heat exchanger 3 is made up of cold dry air runner 4 and damp-heat air runner 5, and two kinds of runners are by changing The arranged for interval of hot plate 6 is combined into, and the top of cold dry air runner 4 offers rectangular opening 7.During 6 arranged for interval of heat exchanger plates, formed The mezzanine space of four side openings, as shown in Fig. 2 two openings relative in mezzanine space closing horizontal direction form cold dry air Relative two form damp-heat air runner 5 on runner 4, sealing vertical direction so that cold dry air runner 4 and damp-heat air stream The flow direction in road 5 is vertical and is arranged alternately.Axial flow blower 1 is used to ensure cold dry air flow and overcomes flow passage resistance force of waterproof;Flaring passage 2 For connection of axial flow fan 1 and the cold dry air import of gas-gas heat exchanger 3;Gas-gas heat exchanger 3 is by cold dry air runner and damp and hot sky Flow channel is constituted, for providing the heat exchange area of septate heat transfer, and is strengthened cold dry air and mixed and promote cold with damp-heat air But the liquid water condensation in tower in damp-heat air.
During practical operation, as shown in figure 5, the normal work of axial flow blower 1, flaring passage 2 is passed through by cold dry air in environment In the cold dry air runner 4 for blasting gas-gas heat exchanger 3.At the same time, the damp-heat air in cooling tower enters damp-heat air runner 5.Septate heat transfer, the rise of cold dry air temperature occur for cold dry air and damp-heat air, and damp-heat air cools and occurs droplets agglomerate. With the progress of heat transfer process, drop occurs reunion and grown up, and is flowed with damp-heat air, is in nonplanar broken line type when striking Or undaform shape 6 wall of heat exchanger plates when, will occur droplet collision and to slide along wall, and then realize apparatus of the present invention to wet The solidifying water function of hot-air.Cold dry air will be discharged after gas-gas heat exchanger 3 from rectangular opening 7 and cold dry air central outlet, Damp-heat air is discharged from hot and humid air outlet.Cold dry air and damp-heat air after septate heat transfer further carry out mixing and changed Heat, passes through the adjustment of the damp and hot mechanical state of enthalpy to air after mixing, it is possible to achieve the white haze in cooling tower exit is eliminated.
Fig. 2 show the front view of apparatus of the present invention, and the lower edge of heat exchanger plates 6 and the horizontal direction of gas-gas heat exchanger 3 have folder Angle α is 0.5~2 °, it is therefore intended that carry out draining to diffusing to the aqueous water in dry air passage 4, it is to avoid because of the accumulation of aqueous water And influence the normal function of gas-gas heat exchange device.Fig. 3 show the broken line type cross sectional shape of heat exchanger plates 6, and Fig. 4 show heat exchanger plates Water is coagulated in 6 undaform cross sectional shape, the fog dispersal that gas-gas heat exchanger can be achieved in two kinds of cross sectional shapes.

Claims (6)

1. a kind of gas-gas heat exchange device for the solidifying water that dispersed fog for cooling tower, it is characterised in that:Lead to including axial flow blower (1), flaring Road (2) and gas-gas heat exchanger (3);
Described gas-gas heat exchanger (3) includes the orthogonal cold dry air runner (4) of gas flow and damp-heat air runner (5), several cold dry air runners (4) and several damp-heat air runners (5) are adjacently positioned in alternating;Gas-gas heat exchanger (3) Inside cooling tower, its damp-heat air import is connected to demister top in cooling tower, and hot and humid air outlet goes out with cooling tower Mouth connection;
Described cold dry air runner (4) and damp-heat air runner (5) is combined into by heat exchanger plates (6) arranged for interval, heat exchange Plate (6) is set along damp-heat air flow direction in on-plane surface;
Described axial flow blower (1) is sequentially arranged with flaring passage (2) along cold dry air flow direction to be connected in cold dry air stream Road (4) front end;Axial flow blower (1) and flaring flue (2) are arranged at cooling tower exterior side wall.
2. a kind of gas-gas heat exchange device of solidifying water that dispersed fog for cooling tower as claimed in claim 1, it is characterised in that:Dry and cold sky The front end of flow channel (4) is cold dry air import, and rear end is cold dry air central outlet;Cold dry air runner (4) is located at damp and hot The side of air outlet slit offers some rectangular openings (7), is used as cold dry air rectangle hole exits.
3. a kind of gas-gas heat exchange device of solidifying water that dispersed fog for cooling tower as claimed in claim 2, it is characterised in that:Described The edge that heat exchanger plates (6) are located at damp-heat air inlet side is tilted to cold dry air central outlet direction and slanted angle α is 0.5 ~2 °.
4. the gas-gas heat exchange device for the solidifying water that dispersed fog as claimed in claim 1 for cooling tower, it is characterised in that:The heat exchanger plates (6) it is in broken line type or undaform shape along damp-heat air flow direction.
5. a kind of gas-gas heat exchange device of solidifying water that dispersed fog for cooling tower as claimed in claim 1, it is characterised in that:Described The mathematical relationship that single cold dry air runner (4) the width a of gas-gas heat exchanger (3) and single damp-heat air runner (5) width b is met For 0.8a≤b≤2a.
6. a kind of gas-gas heat exchange device of solidifying water that dispersed fog for cooling tower as claimed in claim 1, it is characterised in that:Described Heat exchanger plates (6) thickness is that δ is 0.4~0.8mm.
CN201710401446.9A 2017-05-31 2017-05-31 A kind of gas-gas heat exchange device for the solidifying water that dispersed fog for cooling tower Pending CN107179009A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899264A (en) * 2017-11-29 2018-04-13 安徽未名科键环境有限公司 A kind of dedusting demisting white-smoke-removing integrated apparatus
CN109974473A (en) * 2019-03-20 2019-07-05 江苏华塔冷却技术有限公司 A kind of cooling tower of band joint fog dispersal exhaust system
CN110006270A (en) * 2019-01-21 2019-07-12 华北水利水电大学 A kind of labyrinth damp type condensation fog-dissipation water collector
CN110068204A (en) * 2019-05-28 2019-07-30 千玉花 A kind of energy-efficient crops drier that can recycle thermal energy
CN110132030A (en) * 2019-01-21 2019-08-16 华北水利水电大学 A kind of condensation hybrid coupled heat penetration defogging method
CN110319715A (en) * 2019-07-08 2019-10-11 济南蓝辰能源技术有限公司 A kind of adjustable water-saving cooling tower runner design of fog dispersal in cold and hot air duct
CN111664725A (en) * 2019-03-06 2020-09-15 中国石油化工股份有限公司 Fog dissipation cooling tower
CN111664726A (en) * 2019-03-06 2020-09-15 中国石油化工股份有限公司 Fog dissipation cooling tower and fog dissipation filler thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1345234A (en) * 1971-05-19 1974-01-30 Baltimore Aircoil Co Inc Injection type evaporative heat exchanger
US4543108A (en) * 1983-08-24 1985-09-24 Dieter Wurz Mist eliminator for eliminating droplets from a gaseous flow
CN103727805A (en) * 2014-01-07 2014-04-16 山东蓝想环境科技股份有限公司 Deep condensation and demisting environment-friendly device
CN104913679A (en) * 2015-05-28 2015-09-16 上海理工大学 Water collector with fog dispersal and water saving functions and evaporation cooling device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1345234A (en) * 1971-05-19 1974-01-30 Baltimore Aircoil Co Inc Injection type evaporative heat exchanger
US4543108A (en) * 1983-08-24 1985-09-24 Dieter Wurz Mist eliminator for eliminating droplets from a gaseous flow
CN103727805A (en) * 2014-01-07 2014-04-16 山东蓝想环境科技股份有限公司 Deep condensation and demisting environment-friendly device
CN104913679A (en) * 2015-05-28 2015-09-16 上海理工大学 Water collector with fog dispersal and water saving functions and evaporation cooling device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
方如康: "《环境学词典》", 31 August 2003 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899264A (en) * 2017-11-29 2018-04-13 安徽未名科键环境有限公司 A kind of dedusting demisting white-smoke-removing integrated apparatus
CN110006270A (en) * 2019-01-21 2019-07-12 华北水利水电大学 A kind of labyrinth damp type condensation fog-dissipation water collector
CN110132030A (en) * 2019-01-21 2019-08-16 华北水利水电大学 A kind of condensation hybrid coupled heat penetration defogging method
CN111664725A (en) * 2019-03-06 2020-09-15 中国石油化工股份有限公司 Fog dissipation cooling tower
CN111664726A (en) * 2019-03-06 2020-09-15 中国石油化工股份有限公司 Fog dissipation cooling tower and fog dissipation filler thereof
CN111664726B (en) * 2019-03-06 2021-08-06 中国石油化工股份有限公司 Fog dissipation cooling tower and fog dissipation filler thereof
CN111664725B (en) * 2019-03-06 2021-10-08 中国石油化工股份有限公司 Fog dissipation cooling tower
CN109974473A (en) * 2019-03-20 2019-07-05 江苏华塔冷却技术有限公司 A kind of cooling tower of band joint fog dispersal exhaust system
CN110068204A (en) * 2019-05-28 2019-07-30 千玉花 A kind of energy-efficient crops drier that can recycle thermal energy
CN110068204B (en) * 2019-05-28 2024-03-19 千玉花 Energy-efficient crops drying-machine that can retrieve heat energy
CN110319715A (en) * 2019-07-08 2019-10-11 济南蓝辰能源技术有限公司 A kind of adjustable water-saving cooling tower runner design of fog dispersal in cold and hot air duct

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Application publication date: 20170919