WO2004028978A1 - Systeme de tour de regrigeration a evacuation d'eau de soutirage faible ou nulle - Google Patents

Systeme de tour de regrigeration a evacuation d'eau de soutirage faible ou nulle Download PDF

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Publication number
WO2004028978A1
WO2004028978A1 PCT/US2002/030708 US0230708W WO2004028978A1 WO 2004028978 A1 WO2004028978 A1 WO 2004028978A1 US 0230708 W US0230708 W US 0230708W WO 2004028978 A1 WO2004028978 A1 WO 2004028978A1
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WIPO (PCT)
Prior art keywords
water
improvement
spacing
cooling water
improved method
Prior art date
Application number
PCT/US2002/030708
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English (en)
Inventor
Milton W. Snyder
Original Assignee
Snyder Milton W
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Snyder Milton W filed Critical Snyder Milton W
Priority to PCT/US2002/030708 priority Critical patent/WO2004028978A1/fr
Priority to AU2002327071A priority patent/AU2002327071A1/en
Publication of WO2004028978A1 publication Critical patent/WO2004028978A1/fr

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Classifications

    • 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
    • F28C1/04—Direct-contact trickle coolers, e.g. cooling towers with cross-current only
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • F28F25/10—Component parts of trickle coolers for feeding gas or vapour
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
    • 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
    • F28F2025/005—Liquid collection; Liquid treatment; Liquid recirculation; Addition of make-up liquid
    • 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

Definitions

  • This invention relates to the field of water treatment and more particularly to the treatment of water used in evaporative recirculating cooling water systems.
  • Cooling systems are designed primarily for one function, that is, to remove heat from a process system.
  • Heat removal can be accomplished in a number of ways. Once-through water systems have been used for many years where sufficient water supply is available and where water agencies allow their use. Spray ponds or lakes have also been used but require substantial surface area for convection and surface evaporation to remove enough heat. Cooling towers on the other hand require substantially less space, have higher efficiency and reduce water usage.
  • the condensor coils that liberate heat are located in a water jacket near the compressor.
  • This water is circulated through a piping system to carry away the heat to a cooling tower located a distance away from the condenser or to an evaporative condenser where the refrigerant is located within the spray tower.
  • a cooling tower located a distance away from the condenser or to an evaporative condenser where the refrigerant is located within the spray tower.
  • the open spray tower system the water is sprayed or dropped in an air stream so that a portion of the water is evaporated, thereby cooling the main body of water in the open spray tower.
  • This cooled water then is used to extract heat from the refrigerant or process.
  • the cooling and heating of the water is repeated continuously in the spray tower and process system.
  • a second commonly used system is one in which the pH and alkalinity of the cooling water are controlled through the addition of strong acids, such as sulfuric acid.
  • This type of system has the advantage of permitting higher concentrations of dissolved salts to build up in the cooling water. This results in considerable savings of water as less make-up water is required as compared to the polymer treatment method.
  • Sulfuric acid additions are capable of scale prevention with added inhibitors and biocides used for corrosion and microbiological growth control. This maintains cleaner and more efficient heat transfer surfaces. While the overall treatment cost is somewhat less than in the all polymer system, this process relies on a hazardous chemical. Thus, safety and environmental concerns tend to make this type of treatment process less attractive.
  • Cooling towers operate on the principle that the latent heat of vaporization of the water being evaporated subtracts energy from the system, thus, reducing the temperature of the remaining water in the system. Only some of the water is evaporated, however, so the concentrations of salts in the remaining water constantly increase until equilibrium is reached.
  • Common dissolved salts in domestic water are bicarbonates, chlorides and sulfates of calcium, magnesium and sodium. When water containing calcium bicarbonate is heated the heat will strip off one molecule of carbon dioxide, producing calcium carbonate (limestone), according to the equation:
  • TDS total dissolved solids
  • US Patent No. 3,299,619 discloses an improvement in evaporative cooling systems in which a relatively hot stream of water is contacted with atmospheric air to cool the stream, the cooled water is collected, and the water reheated and recycled.
  • the improvement comprises passing at least a portion of the water to a liquid cyclone separator in which foulants are separated.
  • US Patent No. 3,627,032 discloses a water treatment system for the water circulation system of a large capacity air-conditioning system which functions to maintain the water in the system in a suitable condition for passage through the heat exchanger and into engagement with the surfaces of the flow system. Makeup water is added to the reservoir of the cooling tower to replace the water lost from evaporation and windage, and chemicals are added to the water in the flow system as the water flows from the heat exchanger to the spray means at the top of the cooling tower.
  • US Patent No. 3,748,832 discloses a drift eliminator to prevent airborne water droplets which are generated in a cooling tower from escaping through the discharge outlet by trapping the water droplets in the exhaust air and redirecting the air flow through the drift eliminator.
  • the eliminator blades hollow in cross-section, include three plane surfaces which incorporate a series of protrusions or sharp ridges for trapping water droplets which impinge on the eliminator blades and prevent same from becoming re entrained in the air.
  • the blades are formed with a ballistic nose of an air foil type leading edge to reduce resistance to air movement across the drift eliminator.
  • the drift eliminator blades are assembled into unique panels to reduce field assembly time.
  • US Patent No. 3,805,880 discloses equipment in which environmental pollution attributable to the discharge of toxic and other wise polluting additives, such as chromates, phosphates and various biocides, by the common practice of "blowdown," is avoided.
  • the usual loss of expensive additives from the system is minimized and scaling of the waterside surfaces of the equipment being serviced is obviated.
  • Coolant-free solids are removed from the circulating sys tern by bleeding a minor portion of the coolant, separating the solids there from and returning the bleed to the system.
  • the additives are recovered from the solids by water washing, returning the water containing the recovered additives to the circulating system, and maintaining a balanced system by introducing soft make-up water to the coolant without blowdown.
  • US Patent No. 3,850,595 discloses a drift eliminator assembly for use in combination with a cooling tower including a plurality of drift eliminator panels secured together in an end to end relationship. Each panel includes a plurality of longitudinally extending drift eliminator blades supported at their respective ends by a pair of side plates. The side plates of longitudinally adjacent panels are secured together defining an integral drain channel there between. The side plates have openings integral there with to permit liquid collected on the blades to pass there through into the drain channel for discharge to a cold water basin.
  • US Patent No. 3,983,914 discloses crescent shaped vanes disposed in an evaporative cooling tower so that the vanes generally have their leading edges aligned with a plane which forms an acute angle with a vertical plane and that adjacent vanes form a continuous smooth curve flow path which is generally directed upwardly and changes less than 90 degrees in direction to form an effective, low-pressure drop drift eliminator.
  • US Patent No. 4,475,356 discloses an improved method for controlling the blowdown of recirculating water for an industrial cooling system or the like, in direct proportion to the heat load on refrigeration systems.
  • a temperature probe is positioned in the recirculating water which is in communication with a blowdown valve. As the heat load on the system increases the temperature of the cooling water increases and the blowdown valve is then regulated to release more of the circulating water. Additional makeup water and chemicals may be also supplied to the cooling system to maintain a proper chemical balance.
  • the probe is positioned between the refrigerant condenser and the cooling tower in the circulating water system. Appropriate chemical feed systems and makeup water can be regulated to function in relation to the amount of blowdown to insure that the desired chemical balance is maintained.
  • US Patent No. 4,936,881 discloses a cooling tower having a flue gas outlet extending upwardly above the heat exchanger baffles in which the water from a steam power plant is cooled in counterflow to a rising cooling air stream.
  • the mouth of the duct is formed with a droplet trap supplied with rinse water and cooperates with a collector for the rinse water which is led out of the tower independently of the cooled water of the heat exchanger zone.
  • US Patent No. 5,040,377 discloses a new and improved cooling system and method for cooling the air in an enclosed space.
  • the cooling system includes a cooling tower having a plurality of fans arranged to cool a first fluid and a chiller including a condenser thermally coupled to the first fluid, a compressor and an evaporator.
  • the chiller further includes first conduit means for carrying a refrigerant.
  • a chilled fluid loop including second conduit means circulates a second fluid through the evaporator for cooling the second fluid and is arranged to flow air over the second conduit means and into the enclosed space for cooling the air in the enclosed space.
  • Fan control means controls the speed of the cooling tower fans to minimize the total power consumption of the fan motors and the compressor.
  • the fan control means include load determining means for determining the heat transfer load on the chiller, control factor means for generating a control factor which is proportional to the load on the chiller, and speed control means for increasing or decreasing the speed of one or more of the fans responsive to the control factor.
  • US Patent No. 5,294,916 discloses an apparatus for controlling the treatment of water that flows through a cooling system.
  • the electrical conductivity of the water is sensed.
  • a valve control opens a system drain valve when the sensed conductivity is greater than a threshold, and closes the drain valve when the conductivity drops below the threshold by a given amount.
  • the water drained form the system is replenished through an inlet and a mechanism measures the volume of water added to the cooling system.
  • Chemicals to treat the water are fed into the system when specified volumes of water have been added.
  • the sensing of conductivity can be inhibited for a certain period following the application of the chemicals.
  • a possible system malfunction is indicated when the conductivity does not drop below the threshold after the drain valve is open for a given period of time.
  • US Patent No. 5,730,879 discloses a process for conditioning recirculated evaporative cooling water in a cooling water system.
  • the process reduces the amount of make-up water required during the operation of this system as compared to conventional water treatment systems.
  • the process includes the steps of determining the pH of saturation.
  • a strong cation exchange media is used in a controlled sidestream and operated so that the pH of the recirculated cooling water is within about a plus or minus 0.4 of the pH of saturation.
  • the system avoids the necessity of storing acid at the water treatment site and also significantly reduces the amount of make-up water required.
  • This invention is an improvement in a cooling tower system.
  • the system has a basin of cooling water, a fan, a mist eliminator (sometimes called outlet louvers), wetfill, and inlet louvers.
  • the improvement comprises:
  • a drift control system for adjusting the loss of cooling water to atmosphere.
  • This system is operated to achieve a maximum Langelier Saturation Index (LSI) 1 of +2. But this depends on the quality of the incoming water.
  • the object is to control the pH and
  • the Langelier Saturation Index is an equilibrium model derived from the theoretical hardness of the cooling water so as to minimize scaling and salting out of minerals while reducing the amount of water that has to be bled from the system.
  • pH is kept above about the mid 7's and hardness is kept below 650 ppm. It is possible to reduce bleed to zero with this system.
  • the drift control system comprises one or more of the following elements:
  • an inlet spray subsystem adapted to spray the inlet louvers with water
  • an outlet spray subsystem adapted to spray the mist eliminators with water.
  • Water softening may be accomplished by replacing hardness cations with sodium cation or with hydrogen cation.
  • a filtration subsystem for the cooling water may be included.
  • This invention also provides an improved method of operating this improved cooling tower system.
  • the improved method comprising the steps of:
  • the object is to control the pH and hardness of the cooling water so as to minimize scaling and salting out of minerals while reducing the amount of water that has to be bled from the system. So preferably, pH is kept above about the mid 7's and hardness is kept below 650 ppm. It is possible to reduce bleed to zero with this system.
  • the drift control step comprises one or more of the following steps:
  • carbonate ion reduction is accomplished by addition of acid.
  • carbonate ion reduction may be accomplished by hydrogen cation exchange.
  • Hardness reduction may be accomplished by replacement of hardness cations with sodium cations or with hydrogen cation.
  • the cooling water my be filtered.
  • Figure 1 is a partially cut away drawing of a prior art cooling tower illustrating some of the working components.
  • Figure 2 is a partially cut away drawing of one variety of a prior art cooling tower illustrating vertical cross flow.
  • Figure 3 is a partially cut away drawing of another variety of a prior art cooling tower illustrating counter flow.
  • Figure 4 is a partially cut away drawing of another variety of a prior art cooling tower another variety of cross flow.
  • Figure 5 is a schematic drawing illustrating the inner workings of a typical prior art cooling tower.
  • Figure 6 is a flow diagram illustrating the water saving cooling tower of this invention. For clarity the fan, wetfill, inlet and outlet louvers, drift eliminators and circulation of cooling water to the heat load are not included.
  • FIG. 7 is a block diagram of the water savings cooling tower of this invention. For clarity the wetfill, inlet and outlet louvers and drift eliminators are not included.
  • Figure 8A illustrates spraying of the inlet louvers and mist eliminators (outlet louvers) with water from the sump.
  • Figure 8B illustrates spraying of the inlet louvers and mist eliminators (outlet louvers) with tower water being returned from the heat load.
  • Figure 8C illustrates spraying of the inlet louvers and mist eliminators (outlet louvers) with fresh (inlet) water.
  • Figure 9 illustrates controlling the operation of the fan with a speed controller and/or a timer.
  • Figure 10 illustrates inlet louver spacing.
  • Figure 11 illustrates wetfill spacing
  • Figure 11 illustrates mist eliminator spacing. Best Mode for Carrying Out Invention
  • Cooling towers 10 such as atmospheric towers, induced draft towers, forced-draft towers, and natural draft towers all have a number of parts in common. See Figures 1 and 5.
  • the cooling tower sump 14 is the collection basin from where water is drawn and circulated to the system.
  • Cooling tower screens 18 are designed to prevent large debris from going through the pump 22, circulating through the system and potentially reducing water flow which will reduce heat exchange capacity.
  • Circulating water pumps 22 move the water through the system, where heat is removed from the process, and return the water to the tower 10.
  • Tower Distribution System 26 Tower distribution is accomplished through nozzles 32 and sprays 34 at the distribution deck 26.
  • Tower Fill 30 Tower fill, wetfill or packing 30 is made up of splash bars or plastic media which break up the water particles within the tower so intimate air and water contact is accomplished.
  • Wetfill 30 is commercially available. Several varieties are CF-750, CF-1200 and CF-1900, manufactured by Brentwood Industries of Reading, Pennsylvania. Another variety is PLASdek ®, manufactured by Munters Corporation, Fort Myers Florida.
  • Mist Eliminators 38 Mist eliminators or outlet louvers 38 are used to reduce the amount of water lost due to entrainment in the humid hot air leaving the tower.
  • Louvers 46 on the inlet side direct the flow of air into the tower and can reduce water splashing outside the tower.
  • Fan 58 A fan 58 is needed in most systems to move air through the tower 10, and thus past the fill 30 and mist eliminators 38 so that heat exchange with atmospheric air is efficiently accomplished with controlled water droplets or water loss to atmosphere (drift).
  • Figures 2 - 4 illustrate varieties of cooling towers 10 with fans 58 in different locations in order to move the air in different directions.
  • FIGS 6 and 7 illustrate an open spray cooling tower system 70 of this invention. Cooling water is maintained in the sump 14 at a certain level via a float valve 74. As water is lost through evaporation into the atmosphere, make up water is added through line A. Water additions are monitored via a special water meter/contact/timer 78. The water meter portion of this controller 78 keeps track of the amount of water added to the system. The contact/timer portion of this controller periodically opens the inlet solenoid valve 82 for a specific period of time so that inlet water is passed via line B to one or more water softeners 86 and from thence back to the sump 14.
  • the water meter/contact/timer 78 allows the proper amount of soft water additions to be introduced into the sump 14 via solenoid valve 82 based on the quality of the make up water and the degree of mineral build up designed for the system.
  • the system is operated to achieve the pre-calculated Langelier Scale Index.
  • Water softening can be accomplished by cation or hydrogen ion exchange. While softening is applied to the inlet water, it will be appreciated that the net effect is to soften the cooling water in the sump 14.
  • FIG. 8A illustrates a spray manifold 94 for spraying the inlet louvers 46 and a spray manifold 98 for spraying the mist eliminators 38 with water from the sump 14.
  • Figure 8B illustrates a spray manifold 94 for spraying the inlet louvers 46 and a spray manifold 98 for spraying the mist eliminators 38 with tower water being returned from the heat load.
  • Figure 8C illustrates a spray manifold 94 for spraying the inlet louvers 46 and a spray manifold 98 for spraying the mist eliminators 38 with fresh (inlet) water.
  • Some water is constantly withdrawn from the sump through line D and passed by a pH probe 102 and a total dissolved solids (TDS) sensor 106. If the pH rises above the predesigned value, acid is pumped into the sump 14 through line E via conventional technology.
  • the pre-designed pH value depending on the design of the tower 70, the quality of the incoming water and the desired Langelier scaling index.
  • a typical pH value might be, for example, 7.8.
  • hydrogen ion softening is used then the pH probe 102 and acid additions may not be needed. In this case, the hydrogen component of softening is controlled by the pH probe with a tie in to an adjunct solenoid valve controling softener operation.
  • corrosion inhibitor is pumped into the sump 14 via conventional technology and the bleed solenoid valve 110 is opened and some water is bled off.
  • Corrosion inhibitors may be selected from organic polymers, phosphates, molybdates, azoles, zinc compounds and silicates. The exact compound employed is dictated by the metallurgy and rules of local agencies regarding what compounds can be discharged from the system 70.
  • This system can be operated so efficiently that no water needs to be bled off.
  • drift control parameters are adjustable then, during a preliminary set up period, adjust them so that drift is controlled.
  • the objective of controlling drift is to minimize scale and bleed.
  • set up of a system 70 in accordance with this invention can be conducted by making initial settings of the equipment, monitoring the condition of the cooling water over time and making adjustments to the settings as indicated until optimal control of the cooling water is achieved. In most cases this will necessitate setting various controls, meters and valves and reading various gages.
  • lines can be run from all strategic valves, meters and gages to a central automation control unit 126.
  • Such a unit can be programmed, via well known computer automation techniques, to make operation of the system 70 automatic. It is even possible to download data from the controller 126 via a modem to a remote computer, again via will known computer techniques.
  • FIGS 6 and 7 also include a number of shut off valves, which have not been described in detail. The purpose of these valves is to enable maintenance of portions of the system 70 and equipment replacement without the need to completely shut down and drain the entire system 70.
  • FIG. 7 also illustrates that the cooling water can, optionally, be filtered via another pump 130, with appropriate filter 134 to remove airborne dust sized particles to 5 micron size.
  • the new ideas incorporated in this system 70 reduce bleed water consumption (e.g. discharge to the sanitary sewer or storm drain) to low values and, if desired, to zero.
  • white rust formation on new galvanized steel metal surfaces can be minimized by maintaining alkalinity and water hardness less than approximately 300 ppm. The hardness level is known to inhibit white rust. However, chemical passivation treatment is also required.
  • the new system 70 saves significant bleed water as well as prevents mineral scaling in heat exchangers
  • Chemical control is achieved by using acid water treatment and/or hydrogen cation exchange.
  • Sodium softening removes hardness. Hydrogen softening removes hardness and reduces alkalinity.
  • Control of amount of hardness removal is achieved by a new development using water meter/contact/timer 78 which controls the softening of some make up water via a solenoid valve 82 after a specific volume of un-softened water has passed through the water meter/contact/timer 78.
  • Tower water drift loss increase via controlled conditions to provide a small tower water mineral turnover consistent with tower water chemistry, design capacity of the tower 70 and the surrounding areas which receive drift.
  • Drift loss increase is innovatively achieved by changing the operating characteristic of the tower by one of several means. These include:

Abstract

L'invention concerne une amélioration de système de tour de réfrigération (70), et la mise en oeuvre correspondante. Il s'agit du traitement acide de l'eau de refroidissement, de l'adoucissement de l'eau d'arrivée, et de la régulation des pertes. On régule les pertes en régulant la vitesse de soufflante (58); en régulant le temps de fonctionnement de soufflante (58); en réglant l'espacement des orifices d'arrivée (46); en réglant l'espacement des filtres humides (30); en réglant l'espacement des éliminateurs de vapeur (38); en pulvérisant les orifices d'arrivée (46) avec de l'eau de refroidissement ou autre; et en pulvérisant les éliminateurs de vapeur (38) avec de l'eau de refroidissement ou autre. On peut adoucir l'eau en remplaçant les cations de dureté par des cations sodium ou hydrogène. Il est possible de réguler le degré d'adoucissement au moyen d'un système réglable qui comprend un compteur d'eau/temporisateur de contact (78) et une électrovanne (82). Eventuellement, on peut prévoir un sous-système de filtration (130, 134) pour l'eau de refroidissement.
PCT/US2002/030708 2002-09-27 2002-09-27 Systeme de tour de regrigeration a evacuation d'eau de soutirage faible ou nulle WO2004028978A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US2002/030708 WO2004028978A1 (fr) 2002-09-27 2002-09-27 Systeme de tour de regrigeration a evacuation d'eau de soutirage faible ou nulle
AU2002327071A AU2002327071A1 (en) 2002-09-27 2002-09-27 Low or zero bleed water discharge cooling tower system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/030708 WO2004028978A1 (fr) 2002-09-27 2002-09-27 Systeme de tour de regrigeration a evacuation d'eau de soutirage faible ou nulle

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WO2004028978A1 true WO2004028978A1 (fr) 2004-04-08

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Cited By (11)

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JP2006200855A (ja) * 2005-01-24 2006-08-03 Miura Co Ltd 冷却塔、冷却塔における循環水の冷却方法および冷却塔における循環水冷却用散布水の冷却方法
JP2007263533A (ja) * 2006-03-30 2007-10-11 Miura Co Ltd 冷却塔の運転方法
WO2007144544A1 (fr) * 2006-06-16 2007-12-21 CADOVI, Société à responsabilité limitée Procede, dispositif et installation pour la decontamination d'un fluide caloriporteur
CN102167449A (zh) * 2010-12-13 2011-08-31 浙江开化同力电子科技有限公司 一种单晶炉用冷却水的处理方法
CN104748610A (zh) * 2014-12-31 2015-07-01 神华集团有限责任公司 一种冷却塔冷却系统
CN105605940A (zh) * 2016-03-14 2016-05-25 广州览讯科技开发有限公司 一种节水消雾横流式冷却塔
EP3191768A4 (fr) * 2014-09-10 2018-05-23 Munters Corporation Procédé et appareil permettant de réduire l'eau au minimum destinés à être utilisés dans des dispositifs de refroidissement par évaporation
CN111646593A (zh) * 2020-06-05 2020-09-11 广西广宇水资源技术开发有限公司 工业冷却废水处理循环利用工艺
CN113251822A (zh) * 2021-05-12 2021-08-13 江西方舟流体科技有限公司 一种用冷却塔用除雾设备
WO2022120138A1 (fr) * 2020-12-04 2022-06-09 FTD Solutions LLC Système et procédé de gestion d'eau de refroidissement par évaporation
CN114735771A (zh) * 2022-03-29 2022-07-12 北京科净源科技股份有限公司 冷却循环水系统水质控制方法

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JP2006200855A (ja) * 2005-01-24 2006-08-03 Miura Co Ltd 冷却塔、冷却塔における循環水の冷却方法および冷却塔における循環水冷却用散布水の冷却方法
JP2007263533A (ja) * 2006-03-30 2007-10-11 Miura Co Ltd 冷却塔の運転方法
JP4735369B2 (ja) * 2006-03-30 2011-07-27 三浦工業株式会社 冷却塔の運転方法
WO2007144544A1 (fr) * 2006-06-16 2007-12-21 CADOVI, Société à responsabilité limitée Procede, dispositif et installation pour la decontamination d'un fluide caloriporteur
FR2902342A1 (fr) * 2006-06-16 2007-12-21 Cadovi Sarl Procede, dispositif et installation pour la decontamination d'un fluide caloriporteur
CN102167449A (zh) * 2010-12-13 2011-08-31 浙江开化同力电子科技有限公司 一种单晶炉用冷却水的处理方法
EP3191768A4 (fr) * 2014-09-10 2018-05-23 Munters Corporation Procédé et appareil permettant de réduire l'eau au minimum destinés à être utilisés dans des dispositifs de refroidissement par évaporation
CN104748610A (zh) * 2014-12-31 2015-07-01 神华集团有限责任公司 一种冷却塔冷却系统
CN105605940A (zh) * 2016-03-14 2016-05-25 广州览讯科技开发有限公司 一种节水消雾横流式冷却塔
CN111646593A (zh) * 2020-06-05 2020-09-11 广西广宇水资源技术开发有限公司 工业冷却废水处理循环利用工艺
WO2022120138A1 (fr) * 2020-12-04 2022-06-09 FTD Solutions LLC Système et procédé de gestion d'eau de refroidissement par évaporation
CN113251822A (zh) * 2021-05-12 2021-08-13 江西方舟流体科技有限公司 一种用冷却塔用除雾设备
CN114735771A (zh) * 2022-03-29 2022-07-12 北京科净源科技股份有限公司 冷却循环水系统水质控制方法

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