CN102159898A - Method for cooling heat exchanger - Google Patents
Method for cooling heat exchanger Download PDFInfo
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- CN102159898A CN102159898A CN2010800022462A CN201080002246A CN102159898A CN 102159898 A CN102159898 A CN 102159898A CN 2010800022462 A CN2010800022462 A CN 2010800022462A CN 201080002246 A CN201080002246 A CN 201080002246A CN 102159898 A CN102159898 A CN 102159898A
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- water
- heat exchanger
- premises station
- cooling means
- cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
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- 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
- F28D5/00—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, using the cooling effect of natural or forced evaporation
- F28D5/02—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, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
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- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
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- 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]
- Y02B30/54—Free-cooling systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Water treated with a reverse osmosis membrane device (12) is introduced into a circulation line (23) and sprinkled from spray nozzles (14) onto outdoor units (heat exchangers) (15a to 15d). Since the treated water contains none of Ca, Mg, and Cl ions and the like, scale deposition does not occur on the heat exchangers (15a to 15d) and a high cooling effect can be maintained.
Description
Technical field
The present invention relates to a kind of can improve refrigerating efficiency, significantly reduce power consumption heat exchanger cooling means and be applicable to the device of implementing this method.
Background technology
Thermantidote is by indoor set and be used for that indoor heat is discharged into outside off-premises station and combine, and off-premises station has the heat exchanger that is used for heat release.
Usually, in the office building in city, off-premises station is arranged on the roof mostly, in large-scale mansion, mostly with in the concentrated limited space of state configuration on the roof of a plurality of off-premises stations (heat exchanger).The roof is owing to be exposed under the very strong solar radiation summer, thus the temperature of off-premises station (heat exchanger) self can rise, thereby exothermic character reduces.Especially under the situation of a plurality of off-premises stations (heat exchanger) centralized configuration in narrow space, the heat that is produced by each off-premises station riddles in the narrow space, the air themperature that causes off-premises station that the position is set further rises, and therefore, exothermic character reduces greatly.In addition, also have following problem: other thing etc. is set near configuration, under the situation of the circulation variation of air,, make the temperature of setting area further rise by by the whole heat that produces of off-premises station, exothermic character reduces greatly.Like this, when exothermic character reduced, indoor cold air became insufficient, further caused the vicious circle that increases electric power and consume in order to improve the air-cooling system ability.
In addition, in large-scale plant, even the north side at building is provided with off-premises station, because refrigeration space is excessive, therefore, sometimes summer refrigerating efficiency still can reduce, as the factory of food processing or food material processing, keep under the situation of certain temperature the design temperature that must the reduce air-cooling system sometimes air-cooling system that turns round at needs.
Open in the invention of 2000-65409 communique the spy, disclose a kind ofly, be used to improve the control device of refrigerating efficiency by off-premises station (heat exchanger) is carried out water spray.Open in the invention of 2001-317821 communique the spy, similarly disclose and a kind ofly can control the thermantidote that carries out water spray to off-premises station (heat exchanger).Open in the invention of 2004-317064 communique the spy, similarly disclose a kind of cold gas system that off-premises station (heat exchanger) is carried out the soft water spraying.Other opens the spy that flat 5-223364 communique, spy are opened flat 10-213361 communique, the spy opens in the invention of flat 11-142022 communique, No. 3739530 communique of special permission, also discloses a kind of by carrying out the technology that water spray comes cooling heat exchanger.
Summary of the invention
Open in the invention of 2000-65409 communique the spy, fully not about the record at the water source that uses, but common-sense be interpreted as running water.For example, in summer, if heat exchanger is continued to carry out running water spraying, contained Ca ion or a large amount of scale of Mg ion, silica composition etc. in then on the surface of heat exchanger, can adhering to from running water.Like this, the exothermic character of heat exchanger reduces, and cisco unity malfunction becomes, therefore, in order to prevent the generation of this situation, open in the invention of 2000-65409 communique the spy, when water spray, be necessary to carry out tight control, the device that is used for water spray also becomes complicated.Therefore, except the price of installing self uprised, the power consumption of this device that is used to turn round also became big.In addition, on heat exchanger, adhere to scale or heat exchanger in addition by the problem of the chloride ion corrosion in the running water.
Open in the invention of 2001-317821 communique the spy, the record of using relevant for charge for water in [0027] [0039] section, therefore, what can determine heat exchanger is carried out is the running water spraying.Like this, as mentioned above, except the problem of adhering to scale, also has heat exchanger by the problem of the chloride ion corrosion in the running water.
Open in the invention of 2004-317064 communique the spy, because recording the soft water that heat exchanger is carried out obtaining by the soft water maker sprays, therefore can solve the problem of the scale that comes from Ca ion or Mg ion to a certain extent, but can not get eliminating by the scale attachment issue that silica composition brings, further, because described soft water maker has used ion exchange resin, therefore, the amount of Ca ion or Mg ion has reduced in the soft water that generates, but, sneak into Na ion that generate by ion-exchange and total mole equivalent Ca ion and Mg ion, by combine the effect of the salt (NaCl) that generates with chlorion, might carry out stronger corrosion.
As mentioned above, open the spy that 2000-65409 communique, spy are opened the 2001-317821 communique, the spy opens in the invention of 2004-317064 communique, scale adheres to or the problem of the corrosion of heat exchanger and unresolved heat exchanger, also can cause adverse effect to the reduction effect of power consumption.In addition, because the sustainable management of removing or eliminating rust of scale also becomes complicated, the lifetime of heat exchanger, therefore, to the also not contribution fully of cost cutting of integral body.
Above-mentioned spy opens 2000-65409 communique, spy and opens 2001-317821 communique, spy and open 2004-317064 communique, spy and open flat 5-223364 communique, the spy opens flat 10-213361 communique, the spy opens flat 11-142022 communique, No. 3739530 communique of special permission invention, all detect the key element of defined by various sensors such as temperature or electric power, intermittently carry out water (running water) spraying, respectively heat exchanger is cooled off.But in such cooling means, as the record that the spy opens the 38th section in 2001-317821 communique, as shown in Figure 5, under the situation that increases the water yield, when reaching certain specified quantitative, cooling effect can not continue to improve again, reaches plateau.
The device that the object of the present invention is to provide a kind of cooling means of heat exchanger and be applicable to this method of enforcement, it can suppress power consumption significantly, and also can reach the service life of heat exchanger and the equal degree of situation of not sprinkling water.
As solution to the problems described above, the invention provides a kind of cooling means of heat exchanger, this cooling means is when combination has the thermantidote running of indoor set and off-premises station, the method that the heat exchanger that described off-premises station had is cooled off, wherein, this method comprises: at least to the processing water of described heat exchanger sprinkling by the reverse osmosis membrane processing device.
Method as another problem of solution, the present invention also provides a kind of cooling device of heat exchanger, this cooling device is when combination has the thermantidote running of indoor set and off-premises station, the device that the heat exchanger that described off-premises station had is cooled off, wherein, this device comprises: the reverse osmosis membrane processing device, and to the watering unit of described heat exchanger sprinkling by the processing water of described reverse osmosis membrane processing device, and the water recovering tray that is used to dispose described off-premises station as required.
The cooling means of the heat exchanger of the application of the invention can obtain following each effect:
(1) owing to can significantly reduce the needed power consumption of air-cooling system, therefore, the electricity charge not only can be reduced significantly, the generation of carbon dioxide can also be reduced significantly;
(2) owing to can on heat exchanger, not adhere to scale, can not corrode heat exchanger, therefore, can obtain and service life of the device of the situation same degree of watering not;
(3) watering of no scale attachment issue becomes possibility, and in cools down, the periphery with off-premises station of heat exchanger also cools off by watering, can reduce the temperature that off-premises station is provided with place integral body.Under the situation of many off-premises stations of the first-class centralized configuration in mansion roof, can improve the effect that place air themperature reduction is set, and can effectively relax the heat island phenomenon in the city.
Description of drawings
Fig. 1 is the schematic diagram of the cooling device of the off-premises station (heat exchanger) that is applicable to that the method for operation of thermantidote is implemented;
Fig. 2 is the schematic diagram of the cooling device of the off-premises station (heat exchanger) that is applicable to that other embodiment of the method for operation of thermantidote is implemented;
Fig. 3 is illustrated in the test example 1 to spray the photo that RO handles the state of the heat exchanger of water after 14 days;
Fig. 4 is illustrated in the photo that sprays the state of the heat exchanger of running water after 14 days in the test example 1.
Description of reference numerals
Among the figure, the cooling device of symbol 10 expression off-premises stations (heat exchanger); 11 expression water sources; 12 expression RO treating apparatus; 13 expression by-pass valve controls; 14 expression Water spray nozzles; 15a-15d represents off-premises station (heat exchanger); 16a-16d represents off-premises station (heat exchanger); 20 expression water recovering tray; 23 expression circulation lines; 24 expression water reclaim line.
The specific embodiment
＜the cooling means of utilizing the cooling device of the off-premises station (heat exchanger) that Fig. 1 represents to carry out 〉
Fig. 1 is the schematic diagram of the cooling device 10 of the off-premises station (heat exchanger) that is applicable to that the cooling means of heat exchanger of the present invention is implemented.
There is the situation of the intake of running water at water source 11, also can utilize this intake, if mansion etc. also can utilize the water tank that is arranged on the roof.Water source 11 self is not included in the cooling device 10 of off-premises station (heat exchanger).
(running water, water for industrial use or well water) 11 is transported to the reverse osmosis membrane processing device (RO treating apparatus) 12 with pump with running water and handles through pipeline 21 from the water source, obtains handling water (RO handles water).The processing water of this moment, preferred electrical conductivity is less than 20 μ S/cm, 4-10 μ S/cm more preferably is for having removed the processing water of Ca ion, Mg ion, Na ion, Cl ion, ion shape silica etc. in fact.
RO treating apparatus 12 can use known treating apparatus, for example, can use the device model VCR40 series that reaches Co., Ltd. of fine film system and sell, VCR80 series, NER40 series, NER80 series, SHR series etc.
Then,, RO is handled water be transported to circulation line 23 through hydraulic pipeline 22 from RO treating apparatus 12.At this moment, by the by-pass valve control 13 that is provided with as required, can carry out stopping and the control of beginning, carrying capacity etc. of water delivery.
A plurality of off-premises stations (heat exchanger) 15a-15e that is connected with indoor set with not shown pipeline (sometimes also general name " heat exchanger 15 ") is placed on the suitable base.As shown in the figure, the water that water recovering tray 20 reclaims sprinkling can be set.
In the device 10 of Fig. 1, by-pass valve control 13, Water spray nozzle 14, hydraulic pipeline 22, circulation line 23, reclaim line 24 and pump constitute the watering unit.
In Fig. 1, circulation line 23 is configured in the side of heat exchanger 15, also can with the ceiling face by heat exchanger 15 (by heat exchanger 15 just above) mode dispose, in this case, Water spray nozzle 14 also be positioned at heat exchanger 15 just above.In addition, by heat exchanger 15 above just circulation line and the circulation line 23 that passes through heat exchanger 15 sides as shown in Figure 1, this dual mode can also make up and be provided with.
During the air-cooling system running, the RO that heat exchanger 15 spray flow that rise because of the heat release temperature is crossed circulation line 23 handles water.In the present invention, so-called watering is to comprise that the spy opens 2000-65409 communique, spy and opens the spraying that 2001-317821 communique, spy are opened the invention of 2004-317064 communique, also comprises the notion of the watering of the spray shape of Duoing than the injection flow rate of spraying.
The watering amount can be according to suitably increases and decreases such as temperature or day luminous intensities.In addition, watering preferably continues watering in the air-cooling system running, but also can temporarily stop according to time zone or meteorological condition etc.To the cooling effect of heat exchanger 15, mainly remove heat of gasification and realize, but in the air-cooling system running, continue to cool off by the heat of heat exchanger 15 is transferred in the water under the situation of watering by the water evaporation, therefore, can further improve cooling effect.
The RO that is sprayed handles water, is accumulated in the water recovering tray 20, therefore, reclaims the RO that is sprayed by reclaim line 24 and handles water, is transported to the RO treating apparatus once more, handles again.Handle the RO that obtains again and handle water, supply to circulation line 23 through hydraulic pipeline 22 once more.Also can be provided for removing the filter of sand or dust etc. in reclaim line 24 midway.
Under the situation of having used water recovering tray 20, owing to can reclaim the water of accumulating and utilize again, therefore, consider and preferred from the viewpoint of effective utilization of water resource, be under the situation at water source with the running water, consider and preferred from the viewpoint that can save water rate.
Under the situation of having used water recovering tray 20, owing to also can remove heat of gasification by the water evaporation that is accumulated in the water recovering tray 20, therefore, the bulk temperature that heat exchanger 15 overall spaces are set is reduced, also can improve cooling effect each heat exchanger.
In addition, by utilizing such heat of gasification that is accumulated in the water in the water recovering tray 20,, also can keep necessary cooling effect even reduce the watering amount.Therefore, for example, even under implemented to repeat to sprinkle water 30 seconds, the situation of the watering at intermittence of the circulation that stops to sprinkle water 30 seconds, also can remove heat of gasification at the watering stopping period by the evaporation of water that is accumulated in the water recovering tray 20, therefore, can keep cooling effect, simultaneously can water-saving.
Under the running situation that beginning initial stage water is not accumulated in the water recovering tray 20 or the water yield is less, begin to accumulate continuously from running and sprinkle water to water, accumulate from water, consider key elements such as environment temperature, also can suitably making up sprinkles water at continuous watering and intermittence implements.
＜the cooling means of utilizing the cooling device of the off-premises station (heat exchanger) that Fig. 2 represents to carry out 〉
Fig. 2 is the schematic diagram that is applicable to the cooling device 100 of the off-premises station of implementing as the cooling means of the heat exchanger of other embodiment of the present invention (heat exchanger).The meaning and Fig. 1 of the parts that the numbering identical with Fig. 1 represented are identical.In addition, in the device of Fig. 2, do not comprise water recovering tray 20 shown in Figure 1.
In cooling device 100, heat exchanger 15a-15e and heat exchanger 16a-16e are configured on the base of placing on the ground 30 with two row.
In cooling device 100, in the coupling part of hydraulic pipeline 22 and circulation line 23 controlled valve (magnetic valve etc.) etc. is set, when RO treating apparatus 12 is handled RO water and is transported to circulation line 23 through hydraulic pipelines 22, can be (among Fig. 2 to any one direction, water delivery to the left or to the right), or replace water delivery to both direction.
In cooling device 100,10 of the quantity as many as of heat exchanger, if compare with the situation of device shown in Figure 1, the heat by producing from each heat exchanger then makes that the degree that place bulk temperature (temperature) rises is set becomes big.The temperature rises for this, and the hot exchange power of each heat exchanger is reduced.In addition,, can have wall in the front of heat exchanger 15a-15e or heat exchanger 16a-16e or other is provided with thing, in this case, must consider that the temperature that the hot gas by reflection brings rises according to situation is set.Therefore, as (spy open 2000-65409 communique, spy open 2001-317821 communique, spy open 2004-317064 communique, spy and open that flat 5-223364 communique, spy are opened flat 10-213361 communique, the spy opens flat 11-142022 communique, No. 3739530 communique of special permission) as described in the technology in the past, if adopt each heat exchanger is carried out water spray intermittently and the method cooled off, cooling is difficult fully.
But, in cooling device shown in Figure 2 100, owing to sprinkle water from 14 couples of heat exchanger 15a-15e of a plurality of Water spray nozzles or heat exchanger 16a-16e, therefore, the water that flows down also can wettingly be provided with the ground 30 (being recycled the ground that pipeline 23 surrounds) of heat exchanger.Therefore, owing to the space that can cool off simultaneously on ground 30 and the ground 30, the air themperature that can make off-premises station that the position periphery is set reduces, and therefore, can also improve the cooling effect of heat exchanger self.
Further, in cooling device shown in Figure 2 100, make it possible to sprinkle water to inboard and these both sides, the outside of circulation line 23,, can also further increase the floor area of water-wet by to the inside and outside while of circulation line 23 or alternately watering from a plurality of Water spray nozzles 14 of part or all.Thus, can further improve above-mentioned cooling effect.
In cooling device shown in Figure 2 100, with cooling device 10 shown in Figure 1 similarly, dispose a circulation line 23 in the mode of surrounding periphery, but also can be according to the increase of the platform number of heat exchanger, dispose the circulation line of 2 systems, 3 systems, can also the platform number of pump be increased according to the increase of circulation line.
In the cooling means of above-mentioned heat exchanger of the present invention, preferably to heat exchanger that off-premises station had with comprise that the periphery on the ground that off-premises station is set sprinkles water.
In the cooling means of above-mentioned heat exchanger of the present invention, preferred off-premises station more than 10 is sprinkled water to the periphery that comprises the ground that whole off-premises stations is set to be configured more than two row.
In the cooling means of above-mentioned heat exchanger of the present invention, in the water recovering tray that preferred off-premises station setting is placed on the ground, except when watering begins to cool down to heat exchanger, in described water recovering tray, accumulate the water that watering produces.
In the cooling means of above-mentioned heat exchanger of the present invention, in the water recovering tray that preferred off-premises station setting is placed on the ground, heat exchanger is sprinkled water, recovery is accumulated in a part of water in the water recovering tray, handle by the reverse osmosis membrane processing device once more, utilize again as the processing water that sprays usefulness.
In the cooling means of above-mentioned heat exchanger of the present invention, preferred off-premises station is arranged on the roof of building, from the water source that is arranged on the roof the former water that is used to utilize the reverse osmosis membrane processing device to handle is fetched water.
In the cooling means of above-mentioned heat exchanger of the present invention, the processing electrical conductivity of water by the reverse osmosis membrane processing device is preferably less than 20 μ S/cm.
The cooling means of heat exchanger of the present invention for example, is handled water owing to use Fig. 1 or cooling device shown in Figure 2 to spray RO, therefore, can not adhere to scale on heat exchanger as technology in the past, perhaps corrodes heat exchanger.Therefore, between air-cooling system on-stream period in summer, except do not need scale remove or such sustainable management that eliminates rust, the life-span of heat exchanger also can reach the degree identical with the situation of not sprinkling water.
In addition, the cooling means of heat exchanger of the present invention, scale is adhered to or make heat exchanger corrosion, it can not the technology " spraying " as in the past, but with the watering of spray shape, can in the air-cooling system running, continue watering, therefore, can also improve the cooling effect of heat exchanger greatly.
The cooling means of heat exchanger of the present invention, cooling device as shown in Figure 1, by the combination water recovering tray, can utilize and be accumulated in the evaporation of water in the water recovering tray and remove heat of gasification, thereby the place integral body of cooling settings heat exchanger, therefore, can also improve the cooling effect of heat exchanger self.Further, by the combination water recovering tray,, can also reduce the watering amount by the utilization of described heat of gasification.
In addition, the cooling means of heat exchanger of the present invention, cooling device as shown in Figure 2, by directly watering on the ground, therefore place integral body that can the cooling settings heat exchanger, can also improve the cooling effect of heat exchanger self.
Further, the cooling means of heat exchanger of the present invention, the power consumption of RO treating apparatus, very big with difference by being suitable for the power consumption that cold air that the present invention cut down uses, the air-cooling system scale is big more, and the reduction effect of power consumption is also big more.Have a plurality of alternative (lam-oil, gas etc.) in the winter time in the heater unit, alternative as the air-cooling system in summer, it also is the degree of the nearest gas-fired heat pump of popularizing, by being suitable for the cooling means of heat exchanger of the present invention, the peak value of the power consumption in summer descends greatly, therefore, can sign a contract with electric weight and Utilities Electric Co. still less, this also is related to the saving of basic charge.In addition, gas-fired heat pump also has heat exchanger, therefore, by being suitable for cooling means of the present invention, can expect to cut down energy consumption.
Further, by implementing the cooling means of heat exchanger of the present invention in the region of spaciousness, it is also effective that the reduction effect of the carbon dioxide of region integral body or temperature are reduced (for example, the mitigation of heat island phenomenon).
The cooling means of heat exchanger of the present invention, under the situation that a plurality of off-premises stations of concentrating on the roof be arranged on the building as the mansion in city are cooled off (the especially situation of the off-premises station more than 10) with two row or the three above centralized configuration of row, and especially suitable under the situation that the off-premises station of the thermantidote that the large space to large-scale plant etc. freezes cools off.
Embodiment
Embodiment 1
Utilize following condition, estimate inapplicable situation of the present invention air-cooling system power consumption and as the greatest requirements electric power on the basis of the contract electricity charge, and the power consumption and the greatest requirements electric power that are suitable for the air-cooling system of situation of the present invention.
Place: the bakery and confectionery in the Nagano county, 40 of off-premises stations, wastage in bulk or weight electric power 272kwh
During this time: during 4.5 months from May 15th, 2008 to September 30
Time: from 7 in the morning to point in afternoons 7
Watering design temperature: 25 ℃
RO treating apparatus: reach fine film system's Co., Ltd.'s system (treating capacity: 3000L/hr, electrical conductivity 6-8 μ S/cm)
The needed power consumption that always makes of the cold air of inapplicable situation of the present invention is 4,115,000KW, and the needed power consumption that always makes of air-cooling system that has been suitable for situation of the present invention is 3,919,000KW.The consumption electric power of RO treating apparatus therebetween is about 9000KW.In addition, the greatest requirements electric power of inapplicable situation of the present invention is 850KW, and the greatest requirements electric power that has been suitable for situation of the present invention is 755KW.
Embodiment 2
In adjustment is the laboratory of 27.4 ℃ (tables 1 expression outside air temperatures), off-premises station and water recovering tray are set, thermantidote (MBZ-J228 of society of Mitsubishi Electric Corporation system) is set outside described laboratory.The air-cooling system that turns round on one side under this state sprays RO processing water to off-premises station on one side under the following conditions.The result is illustrated in the table 1.
(watering condition)
Water: running water (about 25 ℃ of water temperature)
Watering amount: 400ml/min
The nozzle number that off-premises station is sprinkled water: 2
Watering form: watering always
RO device: NRX20-P (reaching Co., Ltd. of fine film system system)
RO film: SW02200-DRA982P
RO infiltration water electrical conductivity: 5 μ S/cm
Table 1
Electric power reduction rate (%): (power consumption before (power consumption of power consumption-each time phase before watering has just begun)/watering has just begun) * 100
Discharge temperature (℃): the surface temperature of the refrigerator pipes before the heat exchanger entrance, this refrigerator pipes is used for cold-producing medium and returns off-premises station from indoor set
Return temperature (%): the surface temperature of the refrigerator pipes after the heat exchanger outlet, this refrigerator pipes is used for cold-producing medium and returns indoor set from off-premises station
Cold air temperature (%): the temperature of the cold air of emitting from indoor set
Delivery temperature (%): in temperature through the heat exchange of off-premises station and the exhaust that is blown
Outside air temperature: identical with the temperature of the suction air of off-premises station
In addition, the cold wind temperature is the temperature of supposition in processing factory's enforcement of handling FF.
Embodiment 3
To under 14 days (adding up to about 100 hours), identical watering condition, use 4 Water spray nozzles, the attachment state of the scale the when off-premises station (heat exchanger) of two like products is sprayed RO and handles water (the RO processing water that utilizes the device identical with embodiment 2 to obtain, electrical conductivity is 6-8 μ S/cm) and running water (running water in Tokyo) is tested.Spray the result of RO processing water, as shown in Figure 3, can not confirm adhering to of scale in fin surface.Spray the result of running water, as shown in Figure 4, can confirm adhering to of scale in fin surface.Spraying under the situation of running water, sprinkle water 14 days, just can confirm adhering to of scale, therefore inappropriate during under the situation that continues to sprinkle water in summer except that disincrustant, can infer that refrigerating efficiency reduces easily.
Embodiment 4
Utilize following test method and condition, implement the cooling means of heat exchanger of the present invention.
Use instrument (room air conditioner)
Indoor set: MSZ-J228-W (Mitsubishi Electric's (strain) system)
Off-premises station: MUZ-J228 (Mitsubishi Electric's (strain) system)
The specification of room air conditioner: single-phase 100V, 435V, 50-60Hz, regulation refrigerating capacity 2.2kW
Refrigerant piping length: 5m (indoor 2m, outside 3m)
Cold-producing medium kind: R410A (total refrigerant amount: 0.75kg)
Operation mode: conventional operation mode (50Hz), 16 ℃ of design temperatures, air quantity: anxious, wind direction: fixing
Be arranged in the air that dry-bulb temperature is 29 ± 0.2 ℃ (wet-bulb temperature is 19 ± 0.2 ℃) at indoor set, off-premises station is arranged under the airborne state that dry-bulb temperature is 46 ± 0.2 ℃ (wet-bulb temperature is 24 ± 0.2 ℃) running.
It is a circulation that the heat exchanger of off-premises station is carried out that RO handles water (electrical conductivity of using the device identical with embodiment 2 to obtain is that the RO of 8 μ S/cm handles water) spraying (spray amount is 40ml/min) 20 seconds, stops 30 seconds, repeat this circulation 1.5 hours, to the heat exchanger that carried out aforesaid operations and the mensuration of not carrying out heat exchanger that RO the handles water spray project shown in carry out table 2.
Table 2
Efficiency of power dissipation=refrigerating capacity/power consumption
Embodiment 5
Utilize method and the condition identical to implement with embodiment 4.Wherein, to the heat exchanger of off-premises station carry out RO handle water spray (spray amount is 400ml/min) 20 seconds, to stop 60 seconds be a circulation, repeats this circulation 1.5 hours.The result is as shown in table 3.
Table 3
Efficiency of power dissipation=refrigerating capacity/power consumption
Embodiment 6
Bakery and confectionery in the Shizuoka county, the cooling means of enforcement heat exchanger of the present invention during about 5 months of in May, 2009-September.As a result, consider that sunshine condition is identical, at same day of 2009 and 2008, temperature condition was close 3 days, is illustrated in the table 4.
Factory site area: about 9600m
2
Air conditioner: 80 of off-premises stations (being arranged on the southwestern side of shop building)
RO treating apparatus and handle the Emizu-3000 (treating capacity: 3000L/hr, electrical conductivity 6-8 μ S/cm) that water reaches Co., Ltd. of fine film system system
The watering condition: 80 off-premises stations are divided into 2 series, and 40 of each series after 20 seconds, to 40 remaining waterings 20 seconds, as a circulation, repeat this circulation to 40 initial waterings.
The watering time: the morning 6 points-afternoons 10 point (16 hours)
The watering amount of each off-premises station: 0.8 liter/minute (2/platform of Water spray nozzle)
Watering condition (according to outside air temperature, according to following change)
1) 20 ℃ to 25 ℃ of less thaies: sprinkled water 20 seconds, and stopped 60 seconds
2) 25 ℃ to 27 ℃ of less thaies: sprinkled water 20 seconds, and stopped 50 seconds
3) 27 ℃ to 29 ℃ of less thaies: sprinkled water 20 seconds, and stopped 40 seconds
4) 29 ℃ to 31 ℃ of less thaies: sprinkled water 20 seconds, and stopped 30 seconds
5) more than 31 ℃: sprinkled water 30 seconds, and stopped 30 seconds
Table 4
| On August 10th, 2008 | On August 10th, 2009 | |
| The highest temperature (℃) | 29.0 | 28.0 |
| Temperature on average (℃) | 25.5 | 25.5 |
| Power consumption (kW/hr) | 8854 | 8540 |
| The minimizing value (slip) of power consumption | ?- | 314kW/hr(3.5％) |
| On August 12nd, 2008 | On August 8th, 2009 | |
| The highest temperature (℃) | 31.1 | 30.9 |
| Temperature on average (℃) | 26.8 | 26.4 |
| Power consumption (kW/hr) | 9054 | 8704 |
| The minimizing value (slip) of power consumption | - | 350kW/hr(3.9％) |
| On August 13rd, 2008 | On August 13rd, 2009 | |
| The highest temperature (℃) | 31.6 | 31.8 |
| Temperature on average (℃) | 27.3 | 27.0 |
| Power consumption (kW/hr) | 9301 | 8810 |
| The minimizing value (slip) of power consumption | ?- | 491kW/hr(5.3％) |
After implementing about 5 months, for whole heat exchanger of 80 off-premises stations, the two is observed by visual and finger touch, but in whole off-premises stations, can not all confirm adhering to of scale.This fact shows, does not obviously need scale to remove processing in force, even after enforcement of the present invention finishes, also need not carry out scale to heat exchanger fully and remove processing, further, explanation can be implemented the present invention in next year (2010).Under the situation of the sprinkling running water of having implemented conventional art, during 5 months, must carry out 3,4 scales and remove the parts of handling or needing to change heat exchanger, in contrast to this, the effect that reduces operating cost is very big.
Claims (8)
1. the cooling means of a heat exchanger, this cooling means is when combination has the thermantidote running of indoor set and off-premises station, the method that the heat exchanger that described off-premises station had is cooled off, wherein, this method comprises: at least to the processing water of described heat exchanger sprinkling by the reverse osmosis membrane processing device.
2. the cooling means of heat exchanger according to claim 1, wherein, to heat exchanger that off-premises station had with comprise that the periphery on the ground that off-premises station is set sprinkles water.
3. the cooling means of heat exchanger according to claim 1, wherein, the off-premises station more than 10 is sprinkled water to the periphery that comprises the ground that whole off-premises stations is set to be configured more than two row.
4. according to the cooling means of any described heat exchanger among the claim 1-3, wherein, in the water recovering tray that the off-premises station setting is placed on the ground, except when heat exchanger watering is begun to cool down, in described water recovering tray, accumulate the water that watering produces.
5. according to the cooling means of any described heat exchanger among the claim 1-3, wherein, in the water recovering tray that the off-premises station setting is placed on the ground, heat exchanger is sprinkled water, recovery is accumulated in a part of water in the water recovering tray, handle by the reverse osmosis membrane processing device once more, utilize again as the processing water that sprays usefulness.
6. according to the cooling means of any described heat exchanger among the claim 1-5, wherein, off-premises station is arranged on the roof of building, from the water source that is arranged on the roof the former water that is used for the processing of reverse osmosis membrane processing device is fetched water.
7. according to the cooling means of any described heat exchanger among the claim 1-6, wherein, the processing electrical conductivity of water by the reverse osmosis membrane processing device is less than 20 μ S/cm.
8. the cooling device of a heat exchanger, this cooling device is when combination has the running of thermantidote of indoor set and off-premises station, the device that the heat exchanger that is used for that described off-premises station is had cools off, wherein, this device comprises: the reverse osmosis membrane processing device, to the watering unit of described heat exchanger sprinkling by the processing water of described reverse osmosis membrane processing device, and the water recovering tray that is used to dispose described off-premises station as required.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009280391A JP5551927B2 (en) | 2008-12-11 | 2009-12-10 | Cooling method of heat exchanger |
| JP2009-280391 | 2009-12-10 | ||
| PCT/JP2010/058428 WO2011070807A1 (en) | 2009-12-10 | 2010-05-19 | Method for cooling heat exchanger |
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| CN102159898A true CN102159898A (en) | 2011-08-17 |
| CN102159898B CN102159898B (en) | 2015-07-01 |
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| CN201080002246.2A Active CN102159898B (en) | 2009-12-10 | 2010-05-19 | Method for cooling heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109311655A (en) * | 2016-05-27 | 2019-02-05 | 艾威普科公司 | Water-saving insulation spray system |
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| JP2005147635A (en) * | 2003-11-20 | 2005-06-09 | Daikin Ind Ltd | Auxiliary cooling system, and auxiliary cooling method |
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| JPS55134234A (en) * | 1979-04-05 | 1980-10-18 | Toshiba Corp | Water cooled type air conditioner |
| JPS55134269A (en) * | 1979-04-05 | 1980-10-18 | Tokyo Shibaura Electric Co | Water cooling type air conditioner |
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| CN109311655B (en) * | 2016-05-27 | 2022-06-21 | 艾威普科公司 | Water-saving heat-insulation spraying system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102159898B (en) | 2015-07-01 |
| WO2011070807A1 (en) | 2011-06-16 |
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