WO2006035299B1 - Cooling tower - Google Patents
Cooling towerInfo
- Publication number
- WO2006035299B1 WO2006035299B1 PCT/IB2005/002886 IB2005002886W WO2006035299B1 WO 2006035299 B1 WO2006035299 B1 WO 2006035299B1 IB 2005002886 W IB2005002886 W IB 2005002886W WO 2006035299 B1 WO2006035299 B1 WO 2006035299B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling
- tower
- air
- refrigeration system
- filling
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/02—Direct-contact trickle coolers, e.g. cooling towers with counter-current only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/007—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0071—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2270/00—Thermal insulation; Thermal decoupling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Other Air-Conditioning Systems (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
A method of operating an evaporative cooling tower includes contacting water with air in a cooling zone to cool the water and heat the air and cooling the heated air to condense water therefrom, thereby to reduce water loss from the cooling tower. Typically, the cooling of the heated air is by means of evaporative cooling employing a refrigerant.
Claims
1. A method of operating an evaporative natural draught cooling tower which has upwardly moving air, the method including contacting water with air in a cooling zone to cool the water and heat the air; cooling the heated air by means of evaporative cooling provided by a compression refrigeration system or an absorption refrigeration system, with the refrigeration system including a condenser and an evaporator arranged in a circuit, the evaporator being at a low elevation inside the cooling tower to coo! the upwardly moving air and remove water therefrom by condensation; and above the level of cooling of the heated air, heating the upwardly moving dried air with the condenser, to promote the draught in the tower.
2. The method as claimed in claim 1 , in which the cooling tower employs filling with drift eliminators above the filling in the tower, the evaporator comprising one or more coils in or on one or more drift eliminators and the condenser comprising one or more coils in or on one or more drift eliminators located above the evaporator coil or coils.
3. In a natural draught cooling tower of the type used for large scale water cooling as in the cooling of water used by thermal power stations, and which comprises a typically concrete hollow shell which is circular in plan view and has walls which are concave and parabolic in side view outline, the bottom of the tower being raised from ground level on stilts or the like to provide a circurnferentially extending air inlet at its lower end and the tower containing filling at its lower end and a water distribution system for distributing water to be cooled onto the filling from which it drains into a reservoir under the tower while air circulates from the inlet up over the filling and out of the top of the tower by natural convection to cool the water, there is provided the method of operation which comprises, above the filling, cooling the upwardly moving air to condense water therefrom, thereby to reduce water loss from the tower at its top, and above the level of cooling of the upwardly moving air, heating the upwardly moving air to promote the draught in the cooling tower, the cooling of the upwardly moving air being by evaporative cooling provided by a compression refrigeration system or an absorption refrigeration system, with the refrigeration system including a condenser and an evaporator arranged in a circuit, the evaporator being located above the filling in the tower to cool the upwardly moving air and remove water therefrom by condensation, and the condenser being located above the evaporator to heat the upwardly moving air, which is dried air, to promote the draught in the tower.
4. The method as claimed in claim 3, in which the cooling tower employs drift eliminators above the filling in the tower and the evaporator of the refrigeration circuit comprises one or more coils in or on one or more drift eliminators, and the condenser of the refrigeration circuit comprises one or more coils in or on one or more drift eliminators, located above the evaporator coil or coils.
5. An evaporative cooling tower which includes a cooling zone for contacting water with air to cool the water and heat the air, and a refrigeration or cooling system for cooling the heated air from the cooling zone for condensing water therefrom, the refrigeration system being a compression refrigeration system for the evaporative cooling of the air by means of a refrigerant, the refrigeration system being arranged to heat the cooled air at a level above that at which the refrigeration system cools said air.
6. The cooling tower as claimed in claim 5, in which the refrigeration system comprises one or more cooling circuits, each comprising a condenser and an evaporator.
7. The cooling tower as claimed in claim 6, which includes filling and drift eliminators, each evaporator comprising coils in or on one or more drift eliminators above the filling in the tower, and each condenser comprising coils in or on one or more drift eliminators above the filling, the condenser coils being at a higher level than the evaporator coils.
8. The cooling tower as claimed in claim 6 or claim 7, in which each cooling circuit includes a compressor which is driven by a turbine and optionally via a gearbox, the gearbox, when present, being between the turbine and the compressor, and the turbine being driven by an incoming stream of water to be cooled as it enters the cooling tower.
9. An evaporative cooling tower which includes a cooling zone for contacting water with air to cool the water and heat the air, and a refrigeration or cooling system for cooling the heated air from the cooling zone for condensing water therefrom, the refrigeration system being an absorption refrigeration system for the evaporative cooling of the air by means of a refrigerant, the refrigeration system being arranged to heat the cooled air at a level above that at which the refrigeration system cools said air.
10. The cooling tower as claimed in claim 9, in which the refrigeration system comprises one or more cooling circuits, each comprising a generator, a condenser and an evaporator, with each circuit having its generator located outside the cooling tower.
11. The cooling tower as claimed in claim 9 or claim 10, which includes filling and drift eliminators, each evaporator comprising coils in or on one or more drift eliminators above the filling in the tower, and each condenser comprising coils in or on one or more drift eliminators above the filling, the condenser coils being at a higher level than the evaporator coils.
12. A natural draught cooling tower of the type used for large scale water cooling as in the cooling of water used by thermal power stations, and which comprises a typically concrete hollow shell which is circular in plan view and has walls which are concave and parabolic in side view outline, the bottom of the tower being raised from ground level on stilts or the like to provide a circumfereπtially extending air inlet at its lower end and the tower containing filling at its lower end and a water distribution system for distributing water to be cooled onto the filling from which it drains into a reservoir under the tower While air circulates from the inlet up over the filling and out of the top of the tower by natural convection to cool the water, the cooling tower further including a refrigeration system for cooling upwardly moving air in the tower above the filling, for condensing water therefrom.
13. The cooling tower as claimed in claim 12, in which the refrigeration system is a compression refrigeration system for the evaporative cooling of the upwardly moving air by means of a refrigerant, the refrigeration system being arranged to heat the cooled upwardly moving air at a level above that at which the refrigeration system cools said air.
14. The cooling tower as claimed in claim 13, in which the refrigeration system comprises one or more cooling circuits, each comprising a condenser and an evaporator
15. The cooling tower as claimed in claim 14, in which each evaporator comprises coils in or on one or more drift eliminators above the filling in the tower, and each condenser comprises coils in or on one or more drift eliminators above the filling, the condenser coils being at a higher level than the evaporator coils.
16. The cooling tower as claimed in claim 15, in which each cooling circuit includes a compressor which is driven by a turbine and optionally via a gearbox, the gearbox, when present, being between the turbine and the compressor, and the turbine being driven by an incoming stream of water to be cooled as it enters the cooling tower.
17. The cooling tower as claimed in claim 12, in which the refrigeration system is an absorption refrigeration system for the evaporative cooling of the air by means of a refrigerant, the refrigeration system being arranged to heat the cooled upwardly moving air at a level above that at which the refrigeration system cools said air.
18. The cooling tower as claimed in claim 17, in which the refrigeration system comprises one or more cooling circuits, each comprising a generator, a condenser and an evaporator, with each circuit having its generator located outside the cooling tower.
19. The cooling tower as claimed in claim 18, in which each evaporator comprises coils in or on one or more drift eliminators above the filling in the tower, and each condenser comprises coils in or on one or more drift eliminators above the filling, the condenser coils being at a higher level than the evaporator coils.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/664,202 US20070296093A1 (en) | 2004-09-29 | 2005-09-28 | Cooling Tower |
| AU2005288660A AU2005288660B2 (en) | 2004-09-29 | 2005-09-28 | Cooling tower |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA2004/7866 | 2004-09-29 | ||
| ZA2004/7865 | 2004-09-29 | ||
| ZA200407866 | 2004-09-29 | ||
| ZA200407865 | 2004-09-29 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2006035299A2 WO2006035299A2 (en) | 2006-04-06 |
| WO2006035299A3 WO2006035299A3 (en) | 2006-05-18 |
| WO2006035299B1 true WO2006035299B1 (en) | 2006-06-22 |
Family
ID=35559449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2005/002886 WO2006035299A2 (en) | 2004-09-29 | 2005-09-28 | Cooling tower |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20070296093A1 (en) |
| AU (1) | AU2005288660B2 (en) |
| WO (1) | WO2006035299A2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079687B (en) | 2010-03-31 | 2015-12-16 | 合成冷却技术有限公司 | For hot water dispensing system and the method for cooling tower |
| CN102980417B (en) * | 2012-12-03 | 2014-10-15 | 中国电力工程顾问集团西北电力设计院 | Tower type direct air cooled condenser and tower type direct dry cooling system thereof |
| US20160200591A1 (en) * | 2013-08-19 | 2016-07-14 | University Of Maryland | Microemulsion-enabled water capture and recovery |
| BE1023696B1 (en) | 2013-10-18 | 2017-06-16 | Monjoie Cooling Sprl | ATMOSPHERIC REFRIGERANT FOR FORCE DRAFT WITH RECOVERY OR PRODUCTION OF ENERGY AND KIT FOR SUCH A REFRIGERANT |
| CN104533545A (en) * | 2014-12-27 | 2015-04-22 | 西安热工研究院有限公司 | Novel air cooling system |
| CN108800987A (en) * | 2015-05-19 | 2018-11-13 | 乌鲁木齐九品芝麻信息科技有限公司 | A kind of heat pipe heat accumulation combined type cold water method and its device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH589266A5 (en) * | 1975-04-29 | 1977-06-30 | Escher Wyss Gmbh | |
| DE3427664A1 (en) * | 1984-07-26 | 1986-02-06 | Kraftwerk Union AG, 4330 Mülheim | EVAPORATIVE COOLING TOWER |
| US6394174B1 (en) * | 1999-01-29 | 2002-05-28 | Taiwan Semiconductor Manufacturing Company, Ltd | System for reclaiming process water |
| CA2327936A1 (en) * | 1999-12-10 | 2001-06-10 | Hudson Products Corporation | Passive wet cooling tower plume abatement system |
| US6663087B2 (en) * | 2001-10-11 | 2003-12-16 | Marley Cooling Technologies, Inc. | Air-to-air atmospheric exchanger for condensing cooling tower effluent |
| US6852147B2 (en) * | 2002-04-10 | 2005-02-08 | Larry B. Tinguee, Jr. | Apparatus and method for reduction of gases emitted from a cooling tower |
-
2005
- 2005-09-28 WO PCT/IB2005/002886 patent/WO2006035299A2/en active Application Filing
- 2005-09-28 US US11/664,202 patent/US20070296093A1/en not_active Abandoned
- 2005-09-28 AU AU2005288660A patent/AU2005288660B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AU2005288660A1 (en) | 2006-04-06 |
| AU2005288660B2 (en) | 2009-12-17 |
| WO2006035299A2 (en) | 2006-04-06 |
| WO2006035299A3 (en) | 2006-05-18 |
| US20070296093A1 (en) | 2007-12-27 |
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