CN102809197B - Water evaporation heat exchange method for fresh air heat exchange and natural cold source utilization - Google Patents
Water evaporation heat exchange method for fresh air heat exchange and natural cold source utilization Download PDFInfo
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- CN102809197B CN102809197B CN201210139594.5A CN201210139594A CN102809197B CN 102809197 B CN102809197 B CN 102809197B CN 201210139594 A CN201210139594 A CN 201210139594A CN 102809197 B CN102809197 B CN 102809197B
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Abstract
The invention relates to a water evaporation heat exchange method for fresh air heat exchange and natural cold source utilization. An involved system mainly comprises an indirect water evaporation cooling system, a direct water evaporation cooling system and an enclosed space. The indirect water evaporation cooling system consists of an indirect evaporation cooler, a spraying system, a dry side air flue and a wet side air flue; an axial flow fan is arranged on the wet side air flue; the direct water evaporation cooling system consists of a direct evaporation cooler; the enclosed space is provided with a bottom air inlet and a top air exhaust port; an air conditioner is arranged in the enclosed space; and the axial flow fan is arranged at the top exhaust port. The water evaporation heat exchange method has the advantages that through adjusting an air volume adjusting valve, the effect of cooling air with higher temperature in the enclosed space by utilizing a natural cold source is realized; and meanwhile, whether further humidification and temperature drop are carried out by utilizing the direct water evaporation cooling system is decided according to the requirements on temperature in the enclosed space. By utilizing the method, all fresh air can be introduced into the enclosed space. When the temperature of the natural cold source is lower than a freezing point, the system can also efficiently and stably run.
Description
Technical field
The present invention relates to a kind of ventilation heat exchange method, relate in particular to a kind of water evaporation and heat-exchange method for new air heat-exchange and natural cooling source utilization.
Background technology
Along with the develop rapidly of China's telecommunications mobile communication cause, the mobile communication enclosure space sum of three large telecom operators has exceeded 1,000,000; According to statistics, the average year power consumption of each enclosure space is about 1.5 ten thousand degree; Can say to a certain extent, power consumption mainly comprises daily operation electricity consumption and communication network electricity consumption two parts.The energy consumption of communication network is mainly at communication enclosure space, electric energy in communication enclosure space mainly consumes aspect following two: the electricity consumption of (1) communication equipment: can learn from data statistics, communication equipment electricity consumption accounts for 30% left and right of total electricity consumption.At present communication network equipment in use is new and old staggered, is also uneven from power consumption, by change inefficiency online equipment, rationally adjust power load and can effectively reach energy-conservation effect.Unless but adopt the method that renovates of investment goods, displace the old equipment that power consumption is large with energy-conservation novel device, otherwise this part electricity consumption can not be saved.(2) enclosure space environment electricity consumption: comprise enclosure space illumination, air conditioner refrigerating and heat.Wherein illumination and other electricity consumption account for 10% left and right of total electricity consumption, and air conditioning electricity accounts for 60% left and right of total electricity consumption.The power consumption of annual enclosure space air-conditioning exceedes 7,700,000,000 degree, is equivalent to 4,300,000,000 kilograms of CO2 emissions.China's present stage is facing to the dual-pressure of sustained economic growth and reduction carbon emission, reduce the demand of operating cost for each department climate characteristic, the cooling requirement of communication enclosure space and telecommunication department, research communication enclosure space power-saving technology not only has economic benefit, has more social benefit simultaneously.
The research and development of the reducing energy consumption to communication enclosure space is rapid both at home and abroad at present.Wang Dong, Chen Kesheng is in " electromechanical engineering technology " interim " mobile communication enclosure space air conditioner energy saving Technical Analysis " of delivering of the 37th volume the 04th in 2010, mention the new wind-heat switching technology of enclosure space, utilize heat exchanger to make in the air of outdoor lower temperature and enclosure space the damp and hot exchanges such as air carries out.Bao Lingling, Wang Xiaoming, Kang Ligai, Du's Kun is in " Refrigeration & Air-Conditioning " April in 2011 the 2nd phase the 11st volume 77-77 page, mention application by utilize enclosure space internal-external temperature difference impel enclosure space inside and outside both sides gas carry out heat exchange, thereby reach the object that reduces temperature in enclosure space.The main body of above-mentioned modification scheme application is indirect evaporative cooling equipment.Zhou Haidong, Huang Xiang, Qu Yuan etc. utilize direct-type evaporative cooling equipment to carry out reducing energy consumption to communication enclosure space, and it is directly introduced enclosure space outer air in direct-type evaporative cooling equipment, new air is carried out after moistening and lowering temperature, then to be reintroduced back to communication enclosure space be enclosure space cooling.In above-mentioned mentioned modification scheme, while utilizing indirect evaporative cooling equipment, in enclosure space air in heat exchanger with outside air heat exchange after, again draw the enclosure space of can communicating by letter, reach the effect of cooling, although temperature decreases, reach the requirement that reduces energy consumption, again draw can the potentiality that are still cooled in addition of air.Utilize direct-type evaporative cooling equipment, maximum defect is that the outer temperature of enclosure space in winter is lower, and spray can freeze to the water of packing layer, affects greatly the air quantity of heat exchange efficiency and introducing enclosure space.
Summary of the invention
Unresolved the problems referred to above, the invention provides a kind of water evaporation and heat-exchange method for new air heat-exchange and natural cooling source utilization, the method by natural cooling source to air cooling-down in enclosure space, also can introduce new wind simultaneously, and under the subfreezing condition of outdoor temperature, use that also can be efficient, stable.
For achieving the above object, the present invention adopts following technical scheme:
System and the each parts annexation related for the water evaporation and heat-exchange method of new air heat-exchange and natural cooling source utilization are as follows:
System comprises indirect evaporative cooling system and direct evaporative cooling system and enclosure space, and described direct evaporative cooling system is made up of direct evaporative cooler; Enclosure space is provided with the end and puts air inlet and overhead exhaust outlet, is provided with air-conditioner in enclosure space, and overhead exhaust outlet is provided with the first axial flow blower; Evaporative cooling system comprises indirect evaporation cooler and spray system indirectly, indirectly in evaporative cooling system, is provided with dry crosswind road and wet crosswind road.In dry crosswind road, dry side air inlet of air duct and the indirectly air channel between evaporative cooling system are dry side wind inlet channel, and dry crosswind road exhaust outlet and the indirectly air channel between evaporative cooling system are dry side wind output channel; In wet crosswind road, wet side air inlet of air duct and the indirectly air channel between evaporative cooling system are wet side wind inlet channel, and wet crosswind road exhaust outlet and the indirectly air channel between evaporative cooling system are wet side wind output channel.On wet side supply air duct, be provided with the first dichotomous threeway, between the first dichotomous threeway and indirect evaporative cooling system, be provided with the first volume damper, between the first volume damper and indirect evaporative cooling system, be provided with the second dichotomous threeway.On wet side wind output channel, be provided with the first axial flow blower, between the first axial flow blower and indirect evaporative cooling system, be provided with the second volume damper, between the second volume damper and indirect evaporative cooling system, be provided with the 3rd dichotomous threeway.On wet side wind inlet channel, the branch road of the first dichotomous threeway is connected with dry side air inlet of air duct, is provided with the 3rd volume damper on the air channel being connected, and between the 3rd volume damper and dry side air inlet of air duct, is provided with the 4th dichotomous threeway.Dry side wind output channel is connected by air channel with direct evaporative cooling system.On the air channel that evaporative cooling system is connected with direct evaporative cooling system indirectly, the 5th dichotomous threeway is set.The 5th dichotomous threeway branch road is connected with the branch road of the 3rd dichotomous threeway on wet side wind output channel, on the air channel being communicated with, is provided with the 4th volume damper.Directly evaporative cooling system is connected by air channel with enclosure space, air channel is connected to the end of enclosure space and puts air inlet, the overhead exhaust outlet of enclosure space is communicated with the branch road of the 4th dichotomous threeway, on the air channel being connected, be provided with tendencies adjustable valve, between tendencies adjustable valve and enclosure space, be provided with the 6th dichotomous threeway, between the 6th dichotomous threeway and enclosure space, be provided with the second axial flow blower.The 6th dichotomous threeway branch road is connected with the second dichotomous threeway branch road, is provided with the 6th volume damper on the air channel being connected.
The described water evaporation and heat-exchange process for new air heat-exchange and natural cooling source utilization is as follows:
Spring, autumn, winter and summer be the period sooner or later, utilize natural cooling source to carry out when cooling enclosure space hot-air, the 3rd volume damper, the 4th volume damper and the 6th volume damper are closed, and the first volume damper, the second volume damper and tendencies adjustable valve are opened.Make indirect evaporative cooling system, the direct tendencies adjustable valve composition closed circulation under the second axial flow blower and opening on evaporative cooling system, enclosure space, overhead exhaust outlet.Air to be cooled (as primary air) in enclosure space, under the effect of the second axial flow blower, enter dry side air inlet of air duct by the tendencies adjustable valve of enclosure space overhead exhaust outlet and unlatching, air to be cooled enters indirect evaporative cooling system by dry crosswind road; Extraneous lower temperature air (as auxiliary air) is under the effect of wet side wind output channel the first axial flow blower, enter indirect evaporative cooling system through the wet wet side air inlet of air duct of side wind inlet channel and the first volume damper of unlatching, after spray system is to air wetting cooling, enter indirect evaporation cooler, with the wet exchange heat such as the air to be cooled (primary air) of introducing dry crosswind road in enclosure space carries out in indirect evaporation cooler, after heat transfer process is ended, the air in wet crosswind road drains in external environment through wet crosswind road exhaust outlet.Air to be cooled in dry crosswind road through etc. wet cooling send into direct evaporative cooling system after processing, gas to be cooled is directly further being cooled in evaporative cooling system, humidification and air cleaning.Air is after treatment put air inlet at the bottom of by enclosure space and is entered enclosure space bottom.
If air to be cooled in dried fruit crosswind road is after indirect evaporative cooling system cooling, reach the temperature requirement of enclosure space, or during lower than the temperature requirement of enclosure space, can only retain direct evaporative cooling system Axial-Flow blower fan and run well, miscellaneous equipment is closed.The air-conditioning arranging in enclosure space further regulates temperature and humidity.
Under the subfreezing condition of natural cooling source temperature, utilize natural cooling source to carry out when cooling enclosure space hot-air, freeze for preventing indirect evaporative cooling system, affect heat exchange, therefore by the spray system not re-using in indirect evaporative cooling system, close the water circulating pump in indirect evaporative cooling system, and the water in water pond is bled off, prevent system failure.
Spring, autumn, winter and summer be the period sooner or later, if consider that all-fresh air is introduced to enclosure space replaces original air, the first volume damper, the 4th volume damper and tendencies adjustable valve are closed, the second volume damper, the 3rd volume damper and the 6th volume damper are opened.Under the acting in conjunction of the first axial flow blower and the second axial flow blower, in enclosure space, air enters wet side wind inlet channel by the 6th volume damper under overhead exhaust outlet and opening, after spray system is to air wetting cooling, enter the wet exchange heat such as indirect evaporation cooler carries out, after heat transfer process is ended, the second volume damper under air process opening in wet crosswind road, and drain in external environment by wet crosswind road exhaust outlet.All-fresh air is under the effect of direct evaporative cooling system axial flow blower, all-fresh air is by wet side air inlet of air duct, through the 3rd volume damper under opening, enter dry side air inlet of air duct, all-fresh air enters a water receiving evaporating cold by dry crosswind road and goes system, in indirect evaporation cooler, carry out after heat exchange, enter direct water evaporating cold by dry side wind output channel and go system, all-fresh air in direct evaporative cooling system through cooling, after humidification and air cleaning process, send into enclosure space bottom by putting air inlet at the bottom of enclosure space.
If all-fresh air in dried fruit crosswind road is after the heat exchange of indirect evaporative cooling system, reach the temperature requirement of enclosure space, or during lower than the temperature requirement of enclosure space, can only retain direct evaporative cooling system Axial-Flow blower fan and run well, miscellaneous equipment is closed.The air-conditioning arranging in enclosure space further regulates temperature and humidity.
Under the subfreezing condition of natural cooling source temperature, if consider that all-fresh air is introduced to enclosure space replaces original air, freeze for preventing indirect evaporative cooling system, affect heat exchange, therefore by the spray system not re-using in indirect evaporative cooling system, close the water circulating pump in indirect evaporative cooling system, and the water in water pond is bled off, prevent system failure.
As the all-fresh air in dried fruit crosswind road carries out after heat exchange in indirect evaporation cooler, reach the temperature requirement of enclosure space, or during lower than the temperature requirement of enclosure space, can only retain direct evaporative cooling system Axial-Flow blower fan and run well, miscellaneous equipment is closed.Under direct evaporative cooling system Axial-Flow fan action, enter enclosure space bottom by putting air inlet at the bottom of enclosure space.The air-conditioning arranging in enclosure space further regulates temperature and humidity.
As the all-fresh air in dried fruit crosswind road carries out after heat exchange in indirect evaporation cooler, temperature is lower than the temperature requirement of enclosure space, can be in the situation that not affecting air quality, open the 4th volume damper, air in the wet side wind output channel of higher temperature is introduced in direct evaporative cooling system, mix with the all-fresh air in dry side wind output channel, mix air temperature and raise.
If mixing air temperature, higher than the temperature requirement of enclosure space, is sent into mixing air in direct evaporative cooling system and is cooled, humidification and air cleaning.Air after treatment, under direct evaporative cooling system Axial-Flow fan action, enters enclosure space bottom by putting air inlet at the bottom of enclosure space.The air-conditioning of enclosure space setting further regulates temperature and humidity.
Reached the temperature requirement of enclosure space if mix wind, or during lower than the temperature requirement of enclosure space, can only retain direct evaporative cooling system Axial-Flow blower fan and run well, miscellaneous equipment is closed.Under direct evaporative cooling system Axial-Flow fan action, enter enclosure space bottom by putting air inlet at the bottom of enclosure space.The air-conditioning arranging in enclosure space further regulates temperature and humidity.
The water evaporation and heat-exchange method for new air heat-exchange and natural cooling source utilization of Patent design of the present invention, compared with heat-exchange method in conventional enclosure space modification scheme, has significant advantage:
(1) equipment takes full advantage of new wind and natural cooling source, with the interlock of enclosure space inner sealing space special air conditioner, has reduced the available machine time of special air conditioner, has reduced fossil energy consumption, has the feature such as energy-saving and environmental protection, safety;
(2) in equipment use in the winter time, avoided icing phenomenon, the direct evaporative cooling system of rear end can normally be used in the winter time, and this makes heat exchange efficiency far above enclosure space heat transmission equipment in the past;
(3) equipment is in service, the state of air in being isolated from the outside in enclosure space, therefore be not subject to the impact of outside air quality, but simultaneously also can be by the regulation and control of volume damper, introduce new wind, the in the situation that air quality being lower than national standard in enclosure space, thoroughly change air in enclosure space, to keep the clean level of air in enclosure space;
(4) equipment reasonably integrates indirect evaporative cooling system and direct evaporative cooling system, is improving under the prerequisite of heat exchange efficiency, and the too much usable floor area of increasing device, has high economy;
(5) enclosure space is provided with the end and puts air inlet and overhead exhaust outlet, put air inlet through cooling air (or all-fresh air) end of by and before capital equipment, realize bottom air-supply, the air that simultaneous temperature is higher is discharged by overhead exhaust outlet, under the effect of temperature difference and pressure differential, better reach heat transfer effect.
Brief description of the drawings
Fig. 1 is water evaporation and heat-exchange system and the component locations figure for new air heat-exchange and natural cooling source utilization;
Fig. 2 is the water evaporation and heat-exchange method utilized for new air heat-exchange and natural cooling source-utilize natural cooling source to enclosure space cooling process figure;
Fig. 3 is the water evaporation and heat-exchange method-introducing all-fresh air flow chart for new air heat-exchange and natural cooling source utilization;
Fig. 4 is indirect evaporative cooling system axonometric drawing;
Fig. 5 is that direct water evaporating cold removes system profile;
In above-mentioned figure: the indirect evaporative cooling system of 1-; The direct evaporative cooling system of 2-; 3-enclosure space; 4-the 4th dichotomous threeway; 5-the 3rd volume damper; 6-the first volume damper; The dichotomous threeway of 7-first; The 8-side air inlet of air duct that wets; The dichotomous threeway of 9-second; 10-tendencies adjustable valve; 11-the 6th volume damper; 12-the 6th dichotomous threeway; 13-the second axial flow blower; 14-overhead exhaust outlet; 15-does side air inlet of air duct; 16-the second volume damper; 17-the first axial flow blower; The wet crosswind of 18-road exhaust outlet; 19-the 3rd dichotomous threeway; 20-the 4th volume damper; The dry crosswind of 21-road exhaust outlet; 22-the 5th dichotomous threeway; At the bottom of 23-, put air inlet; 1-1-indirect evaporation cooler; 1-2-nozzle; 1-3-water pipe; 1-4-water circulating pump; 1-5-water pond; 2-1-packing layer; 2-2-water pipe; 2-3-axial flow blower; 2-4-water pond; 2-5-water circulating pump.
Detailed description of the invention
The present invention is for the water evaporation and heat-exchange method of new air heat-exchange and natural cooling source utilization, as follows in conjunction with the related system of Fig. 1 and each parts annexation:
System comprises indirect evaporative cooling system 1 and direct evaporative cooling system 2 and enclosure space 3, and described direct evaporative cooling system 2 is made up of direct evaporative cooler; Enclosure space 3 is provided with the end and puts air inlet 23 and overhead exhaust outlet 14, is provided with air-conditioner in enclosure space, and overhead exhaust outlet 14 is provided with the first axial flow blower 13; Evaporative cooling system 1 comprises indirect evaporation cooler 1-1 and spray system indirectly, indirectly in evaporative cooling system 1, is provided with dry crosswind road and wet crosswind road.In dry crosswind road, dry side air inlet of air duct 15 and the indirectly air channel between evaporative cooling system 1 are dry side wind inlet channel, and dry crosswind road exhaust outlet 21 and the indirectly air channel between evaporative cooling system 1 are dry side wind output channel; In wet crosswind road, wet side air inlet of air duct 8 and the indirectly air channel between evaporative cooling system 1 are wet side wind inlet channel, and wet crosswind road exhaust outlet 18 and the indirectly air channel between evaporative cooling system 1 are wet side wind output channel.On wet side supply air duct, be provided with the first dichotomous threeway 7, between the first dichotomous threeway 7 and indirect evaporative cooling system 1, be provided with the first volume damper 6, the first volume dampers 6 and indirectly between evaporative cooling system 1, be provided with the second dichotomous threeway 9.On wet side wind output channel, be provided with the first axial flow blower 17, between the first axial flow blower 17 and indirect evaporative cooling system 1, be provided with the second volume damper 16, the second volume dampers 16 and indirectly between evaporative cooling system 1, be provided with the 3rd dichotomous threeway 19.On wet side wind inlet channel, the branch road of the first dichotomous threeway 7 is connected with dry side air inlet of air duct 15, is provided with between the 3rd volume damper 5, the three volume dampers 5 and dry side air inlet of air duct 15 and is provided with the 4th dichotomous threeway 4 on the air channel being connected.Dry side wind output channel is connected by air channel with direct evaporative cooling system 2.On the air channel that evaporative cooling system 1 is connected with direct evaporative cooling system 2 indirectly, the 5th dichotomous threeway 22 is set.The 5th dichotomous threeway 22 branch roads are connected with the branch road of the 3rd dichotomous threeway 19 on wet side wind output channel, on the air channel being communicated with, are provided with the 4th volume damper 20.Directly evaporative cooling system 2 is connected by air channel with enclosure space 3, air channel is connected to the end of enclosure space 3 and puts air inlet 23, the overhead exhaust outlet 14 of enclosure space 3 is communicated with the branch road of the 4th dichotomous threeway 4, on the air channel being connected, be provided with tendencies adjustable valve 10, be provided with the second axial flow blower 13 being provided with between tendencies adjustable valve 10 and enclosure space 3 between the 6th dichotomous threeway 12 of dichotomous threeway 12, the six and enclosure space 3.The 6th dichotomous threeway 12 branch roads are connected with the second dichotomous threeway 9 branch roads, are provided with the 6th volume damper 11 on the air channel being connected.
The described water evaporation and heat-exchange process for new air heat-exchange and natural cooling source utilization is as follows:
Spring, autumn, winter and summer be the period sooner or later, utilize natural cooling source to carry out when cooling enclosure space 3 hot-airs, the 3rd volume damper 5, the 4th volume damper 20 and the 6th volume damper 11 are closed, and the first volume damper 6, the second volume damper 16 and tendencies adjustable valve 10 are opened.Make indirect evaporative cooling system 1, directly the tendencies adjustable valve 10 under the second axial flow blower 13 and opening forms closed circulation on evaporative cooling system 2, enclosure space 3, overhead exhaust outlet 14.The interior air to be cooled of enclosure space 3 is as primary air, under the effect of the second axial flow blower 13, enter dry side air inlet of air duct (15) by the tendencies adjustable valve 10 of enclosure space 3 overhead exhaust outlets 14 and unlatching, air to be cooled enters indirect evaporative cooling system 1 by dry crosswind road; Extraneous lower temperature air as auxiliary air under the effect of wet side wind output channel the first axial flow blower 17, enter indirect evaporative cooling system 1 through the wet side air inlet of air duct 8 of wet side wind inlet channel and the first volume damper 6 of opening, after spray system is to air wetting cooling, enter indirect evaporation cooler 1-1, with the wet exchange heat such as the air primary air to be cooled of introducing dry crosswind road in enclosure space carries out in indirect evaporation cooler 1-1, after heat transfer process is ended, the air in wet crosswind road drains in external environment through wet crosswind road exhaust outlet 18.Air to be cooled in dry crosswind road through etc. wet cooling send into direct evaporative cooling system 2 after processing, gas to be cooled is directly further being cooled in evaporative cooling system 2, humidification and air cleaning.Air is after treatment put air inlet 23 by 3 ends of enclosure space and is entered enclosure space 3 bottoms.
If air to be cooled in dried fruit crosswind road is after indirect evaporative cooling system 1 cooling, reach the temperature requirement of enclosure space 3, or during lower than the temperature requirement of enclosure space 3, can only retain direct evaporative cooling system 2 Axial-Flow blower fan 2-3 and run well, miscellaneous equipment is closed.The air-conditioning of enclosure space 3 interior settings further regulates temperature and humidity.
Under the subfreezing condition of natural cooling source temperature, utilize natural cooling source to carry out when cooling enclosure space hot-air, freeze for preventing indirect evaporative cooling system 1, affect heat exchange, therefore by the spray system not re-using in indirect evaporative cooling system 1, close the water circulating pump 1-4 in indirect evaporative cooling system 1, and the water in water pond 1-5 is bled off, prevent system failure.
Spring, autumn, winter and summer be the period sooner or later, if consider that all-fresh air is introduced to enclosure space replaces original air, the first volume damper 6, the 4th volume damper 20 and tendencies adjustable valve 10 are closed, the second volume damper 16, the 3rd volume damper 5 and the 6th volume damper 11 are opened.Under the acting in conjunction of the first axial flow blower 17 and the second axial flow blower 13, the interior air of enclosure space 3 enters wet side wind inlet channel by the 6th volume damper 11 under overhead exhaust outlet 14 and opening, after spray system is to air wetting cooling, enter the wet exchange heat such as indirect evaporation cooler 1-1 carries out, after heat transfer process is ended, the second volume damper 16 under air process opening in wet crosswind road, and drain in external environment by wet crosswind road exhaust outlet 18.All-fresh air is under the effect of direct evaporative cooling system 2 axial flow blower 2-3, all-fresh air is by wet side air inlet of air duct 8, through the 3rd volume damper 5 under opening, enter dry side air inlet of air duct 15, all-fresh air enters a water receiving evaporating cold by dry crosswind road and goes system 1, in indirect evaporation cooler 1-1, carry out after heat exchange, enter direct water evaporating cold by dry side wind output channel and go system 2, all-fresh air process in direct evaporative cooling system 2 cools, after humidification and air cleaning are processed, put air inlet 23 by 3 ends of enclosure space and send into enclosure space 3 bottoms.
If all-fresh air in dried fruit crosswind road is after indirect evaporative cooling system 1 heat exchange, reach the temperature requirement of enclosure space 3, or during lower than the temperature requirement of enclosure space 3, can only retain direct evaporative cooling system 2 Axial-Flow blower fan 2-3 and run well, miscellaneous equipment is closed.The air-conditioning of enclosure space 3 interior settings further regulates temperature and humidity.
Under the subfreezing condition of natural cooling source temperature, if consider that all-fresh air is introduced to enclosure space replaces original air, freeze for preventing indirect evaporative cooling system 1, affect heat exchange, therefore by the spray system not re-using in indirect evaporative cooling system 1, close the water circulating pump 1-4 in indirect evaporative cooling system 1, and the water in water pond 1-5 is bled off, prevent system failure.
As the all-fresh air in dried fruit crosswind road carries out after heat exchange in indirect evaporation cooler 1-1, reach the temperature requirement of enclosure space 3, or during lower than the temperature requirement of enclosure space 3, can only retain direct evaporative cooling system 2 Axial-Flow blower fan 2-3 and run well, miscellaneous equipment is closed.Under direct evaporative cooling system 2 Axial-Flow blower fan 2-3 effects, put air inlet 23 by 3 ends of enclosure space and enter enclosure space 3 bottoms.The air-conditioning of enclosure space 3 interior settings further regulates temperature and humidity.
As the all-fresh air in dried fruit crosswind road carries out after heat exchange in indirect evaporation cooler 1-1, temperature is lower than the temperature requirement of enclosure space 3, in the situation that not affecting air quality, open the 4th volume damper 20, air in the wet side wind output channel of higher temperature is introduced in direct evaporative cooling system 2, mix with the all-fresh air in dry side wind output channel, mix air temperature and raise.
If mixing air temperature, higher than the temperature requirement of enclosure space 3, is sent into mixing air in direct evaporative cooling system 2 and is cooled, humidification and air cleaning.Air after treatment, under direct evaporative cooling system 2 Axial-Flow blower fan 2-3 effects, is put air inlet 23 by 3 ends of enclosure space and is entered enclosure space 3 bottoms.The air-conditioning that enclosure space 3 arranges further regulates temperature and humidity.
Reached the temperature requirement of enclosure space 3 if mix air temperature, or during lower than the temperature requirement of enclosure space 3, can only retain direct evaporative cooling system 2 Axial-Flow blower fan 2-3 and run well, miscellaneous equipment is closed.Under direct evaporative cooling system 2 Axial-Flow blower fan 2-3 effects, put air inlet 23 by 3 ends of enclosure space and enter enclosure space 3 bottoms.The air-conditioning of enclosure space 3 interior settings further regulates temperature and humidity.
In Fig. 2, filled arrows represents new wind flow signal in air channel, and hollow arrow represents Air Flow signal in enclosure space in air channel.
In Fig. 3, filled arrows represents new wind flow signal in air channel, hollow arrow represents Air Flow signal in enclosure space in air channel, tiltedly interstitial wire arrow is illustrated in while needing enclosure space air to mix with new wind, the mobile signal of the enclosure space air mixing with new wind in air channel.
Claims (2)
1. for a water evaporation and heat-exchange method for new air heat-exchange and natural cooling source utilization, it is characterized in that for the water evaporation and heat-exchange method of new air heat-exchange and natural cooling source utilization related system and each parts annexation as follows:
Comprise indirect evaporative cooling system (1) and direct evaporative cooling system (2) and enclosure space (3), described direct evaporative cooling system (2) is made up of direct evaporative cooler, and direct evaporative cooler comprises packing layer (2-1), water pipe (2-2), axial flow blower (2-3), water pond (2-4) and water circulating pump (2-5), enclosure space (3) is provided with the end and puts air inlet (23) and overhead exhaust outlet (14), is provided with air-conditioner in enclosure space, evaporative cooling system (1) comprises indirect evaporation cooler (1-1) and spray system indirectly, spray system comprises nozzle (1-2), water pipe (1-3), circulating pump (1-4) and water pond (1-5), indirectly in evaporative cooling system (1), is provided with dry crosswind road and wet crosswind road, in dry crosswind road, dry side air inlet of air duct (15) and the indirectly air channel between evaporative cooling system (1) are dry side wind inlet channel, and dry crosswind road exhaust outlet (21) and the indirectly air channel between evaporative cooling system (1) are dry side wind output channel, in wet crosswind road, wet side air inlet of air duct (8) and the indirectly air channel between evaporative cooling system (1) are wet side wind inlet channel, and wet crosswind road exhaust outlet (18) and the indirectly air channel between evaporative cooling system (1) are wet side wind output channel, on wet side wind inlet channel, be provided with the first dichotomous threeway (7), between the first dichotomous threeway (7) and indirect evaporative cooling system (1), be provided with the first volume damper (6), between the first volume damper (6) and indirect evaporative cooling system (1), be provided with the second dichotomous threeway (9), on wet side wind output channel, be provided with the first axial flow blower (17), between the first axial flow blower (17) and indirect evaporative cooling system (1), be provided with the second volume damper (16), between the second volume damper (16) and indirect evaporative cooling system (1), be provided with the 3rd dichotomous threeway (19), on wet side wind inlet channel, the branch road of the first dichotomous threeway (7) is connected with dry side air inlet of air duct (15), on the air channel that the branch road of the first dichotomous threeway (7) is connected with dry side air inlet of air duct (15), be provided with the 3rd volume damper (5), between the 3rd volume damper (5) and dry side air inlet of air duct (15), be provided with the 4th dichotomous threeway (4), the dry side wind output channel of evaporative cooling system (1) is connected by air channel with direct evaporative cooling system (2) indirectly, on the air channel that evaporative cooling system (1) is connected with direct evaporative cooling system (2) indirectly, the 5th dichotomous threeway (22) is set, the 5th dichotomous threeway (22) branch road is connected with the branch road of the 3rd dichotomous threeway (19) on wet side wind output channel, on the air channel being connected, is provided with the 4th volume damper (20) at the 5th dichotomous threeway (22) branch road with the branch road of the 3rd dichotomous threeway (19) on wet side wind output channel, directly evaporative cooling system (2) is connected by air channel with enclosure space (3), the air channel that directly evaporative cooling system (2) is connected with enclosure space (3) is connected to the end of enclosure space (3) and puts air inlet (23), the overhead exhaust outlet (14) of enclosure space (3) is communicated with the branch road of the 4th dichotomous threeway (4), be communicated with on the air channel being connected and be provided with tendencies adjustable valve (10) at the overhead exhaust outlet (14) of enclosure space (3) and the branch road of the 4th dichotomous threeway (4), on the air channel between tendencies adjustable valve (10) and enclosure space (3) overhead exhaust outlet (14), be provided with the 6th dichotomous threeway (12), on air channel between the 6th dichotomous threeway (12) and enclosure space (3), be provided with the second axial flow blower (13), the 6th dichotomous threeway (12) branch road is connected with the second dichotomous threeway (9) branch road, on the air channel that the 6th dichotomous threeway (12) branch road is connected with the second dichotomous threeway (9) branch road, is provided with the 6th volume damper (11),
The water evaporation and heat-exchange process that natural cooling source utilizes is as follows:
The water evaporation and heat-exchange that natural cooling source utilizes carries out when cooling enclosure space (3) hot-air, the 3rd volume damper (5), the 4th volume damper (20) and the 6th volume damper (11) are closed, and the first volume damper (6), the second volume damper (16) and tendencies adjustable valve (10) are opened, tendencies adjustable valve (10) composition closed cycle system under evaporative cooling system (1), direct evaporative cooling system (2), enclosure space (3), upper the second axial flow blower of overhead exhaust outlet (14) (13) and opening indirectly, air to be cooled in enclosure space (3), under the effect of the second axial flow blower (13), enter dry side air inlet of air duct (15) by the tendencies adjustable valve (10) of enclosure space (3) overhead exhaust outlet (14) and unlatching, air to be cooled enters indirect evaporative cooling system (1) by dry crosswind road, extraneous lower temperature air is under the effect of wet side wind output channel the first axial flow blower (17), enter indirect evaporative cooling system (1) through the wet side air inlet of air duct (8) of wet side wind inlet channel and the first volume damper (6) of opening, after the spray system of evaporative cooling system is lowered the temperature to air wetting indirectly, enter indirect evaporation cooler (1-1), with the wet exchange heat such as the air to be cooled of introducing dry crosswind road in enclosure space carries out in indirect evaporation cooler (1-1), when heat transfer process finishes, air in wet crosswind road drains in external environment through wet crosswind road exhaust outlet (18), air to be cooled in dry crosswind road through etc. wet cooling send into direct evaporative cooling system (2) after processing, gas to be cooled is directly cooling in evaporative cooling system (2), humidification and purification, or close direct evaporative cooling system (2), only retain direct evaporative cooling system (2) Axial-Flow blower fan (2-3) and run well, put air inlet (23) through the air of direct evaporative cooling system (2) by enclosure space (3) end and enter enclosure space (3) bottom,
New air heat-exchange process is as follows:
In the time utilizing all-fresh air heat exchange, the first volume damper (6), the 4th volume damper (20) and tendencies adjustable valve (10) are closed, and the second volume damper (16), the 3rd volume damper (5) and the 6th volume damper (11) are opened, under the acting in conjunction of the first axial flow blower (17) and the second axial flow blower (13), the interior air of enclosure space (3) enters wet side wind inlet channel by the 6th volume damper (11) under overhead exhaust outlet (14) and opening, after the spray system of evaporative cooling system is lowered the temperature to air wetting indirectly, enter the wet exchange heat such as indirect evaporation cooler (1-1) carries out, after heat transfer process is ended, air in wet crosswind road is through the second volume damper (16) under opening, and drain in external environment by wet crosswind road exhaust outlet (18), all-fresh air is under the effect of direct evaporative cooling system (2) axial flow blower (2-3), all-fresh air is by wet side air inlet of air duct (8), through the 3rd volume damper (5) under opening, enter dry side air inlet of air duct (15), all-fresh air enters indirect evaporative cooling system (1) by dry crosswind road, in indirect evaporation cooler (1-1), carry out after heat exchange, enter direct evaporative cooling system (2) by dry side wind output channel, all-fresh air cools in direct evaporative cooling system (2), humidification and purification, or close direct evaporative cooling system (2), only retaining direct evaporative cooling system (2) Axial-Flow blower fan (2-3) runs well, put air inlet (23) through the all-fresh air of direct evaporative cooling system (2) by enclosure space (3) end and send into enclosure space (3) bottom.
2. the water evaporation and heat-exchange method for new air heat-exchange and natural cooling source utilization according to claim 1, it is characterized in that: under the subfreezing condition of natural cooling source temperature, utilize natural cooling source to carry out when cooling enclosure space hot-air, freeze for preventing indirect evaporative cooling system (1), affect heat exchange, close the spray system in indirect evaporative cooling system (1), and the water in water pond (1-5) in indirect evaporative cooling system (1) is bled off, prevent system failure.
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| US6931883B2 (en) * | 2003-12-18 | 2005-08-23 | Davis Energy Group, Inc. | Two stage indirect evaporative cooling system |
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Effective date of registration: 20180308 Address after: 300401 Tianjin medical equipment Industrial Park, Beichen District, Beichen District, Tianjin, No. 1 (inside the hatchery of Chen atlas Valley) Patentee after: Tianjin Yue Xin productivity promotion Co., Ltd. Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee before: Beijing University of Technology |
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