CN100494793C - Two-stage rotating wheel dehumidification air conditioner device capable of using low-grade heat source - Google Patents
Two-stage rotating wheel dehumidification air conditioner device capable of using low-grade heat source Download PDFInfo
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Abstract
A two grade runner dehumidification air-conditioning device, which belongs to refrigeration dehumidification technical field and can make use of low grade heat source, includes two stage dehumidification runners, two stage heat exchanges, two heaters, an evaporative cooler, a treating fan, a regeneration fan, a motor and a belt or a gear. The motor is connected with the dehumidification runners through the belt or the gear and drives the dehumidification runners to rotate. Every dehumidification runner is equipped with two areas of a treating area and a regeneration area. The treating area of the first stage dehumidification runner is connected with the inlet of the first stage heat exchanger. The outlet of the first stage heat exchanger is connected with the treating area of the second stage dehumidification runner. The other side of the second stage dehumidification runner is connected with the second stage heat exchanger. The second stage heat exchange is connected with the evaporative cooler. The evaporative cooler is connected with the treating fan. The regeneration fan is respectively connected with the regeneration areas of the two stage dehumidification runners. Two heaters are respectively connected with the other sides of the regeneration areas of the two stage dehumidification runners. Enough temperature and humidity descending can be achieved by the invention without an electric refrigeration air conditioning.
Description
Technical field
What the present invention relates to is a kind of aircondition of refrigeration technology field, specifically is a kind of two-stage rotating wheel dehumidification air conditioner device that utilizes low-grade heat source.
Background technology
Utilize the coincide general trend of current energy-saving and emission-reduction, sustainable development of the rotary wheel dehumidifying technology of low-grade heat source.The solid rotary wheel dehumidifying can adopt low-grade heat source to drive dry runner and remove airborne moisture, makes it become dry air, reaches the temperature humidity range that needs by direct evaporative cooling again, can play the nervous trend of supply of electric power and slow down effect.In addition, rotary wheel dehumidifying reduces employing chloro-fluoro-carbon kind cold-producing medium, and no CFCS problem does not have the greenhouse effects effect yet, is a kind of environmentally friendly refrigeration modes.Current research is also found, through the air that runner is handled, can remove wherein pernicious gas and composition, improves air quality.The two-stage rotating wheel dehumidification air-conditioner can be widely used in fields such as family expenses, commercialization, public place and industrial air-conditioning, be particularly suitable for damp and hot, clammy weather, drive air conditioner relatively with simple electricity, have heat supply, cooling energy-efficient, can handle more fresh airs and advantages such as the air-treatment quality is good, environmental protection, can reach lower humiture requirement.
Conventional single runner dehumidifying has following deficiency: 1) regeneration temperature height, mainly utilize thermals source such as electric heating, steam, and low-grade heat sources such as applied solar energy, waste heat have certain difficulty.2) dehumidifying effect is limited, can not remove enough moisture, under the situation that does not have the electricity refrigeration to cooperate, can not reach the temperature and the humidity requirement of the air-supply of comfort air conditioning.3) degree of depth dehumidifying need cooperate complex structure with electric refrigeration air-conditioner.
Find by prior art documents, the patent No. is 00227043.9 Chinese utility model patent, name is called " low dew point rotary dehumidifier ", this patent disclosure correlation technique be characterized as: new wind directly passes through rotary wheel dehumidifying, the regeneration blower fan is connected with the regeneration side of desiccant wheel by the regeneration air channel, and regenerative heater is communicated with desiccant wheel assembly regeneration side by the regeneration air channel.The defective of this patented technology and deficiency are: rely on special thermal source, energy efficiency is undesirable, and under summer standard environment operating mode, can not reach the air themperature that needs, the scope of humidity regulation.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of two-stage rotating wheel dehumidification air conditioner device that utilizes low-grade heat source is provided, it is had to utilize low-grade heat source, do not need electric refrigeration air-conditioner just can reach enough temperature, humidity descends, and can handle new wind and reclaim the advantage of indoor heat energy.
The present invention is achieved by the following technical solutions, the present invention includes: two stage dehumidify runner, two-stage heat exchanger, two heaters, devaporizer, processing blower fan, regeneration blower fan, motor, belt or gears.Motor is connected with desiccant wheel by belt or gear, drives desiccant wheel and rotates, and each desiccant wheel is divided into two zones of treatment region and renewing zone.The treatment region of first order desiccant wheel is connected with the import of first order heat exchanger, first order heat exchanger exit is connected with the treatment region of second level desiccant wheel, second level desiccant wheel opposite side is connected with second level heat exchanger, second level heat exchanger is connected with devaporizer, the regeneration blower fan is connected with two stage dehumidify rotary wheel regeneration district respectively, and two heaters are connected with the renewing zone opposite side of two stage dehumidify runner respectively.
Flowing by inlet air flow path air of the present invention is divided into two flow paths, handles wind path footpath and regeneration wind path footpath, is specially:
Described processing wind path footpath: first order desiccant wheel, first order heat exchanger, second level desiccant wheel, second level heat exchanger, devaporizer, processing blower fan connect, and polyphone connects successively.Be specially: first order desiccant wheel treatment region is connected with first order heat exchanger by airduct, this first order heat exchanger is connected with second level desiccant wheel treatment region again, and the opposite side of second level desiccant wheel treatment region is connected by airduct with second level heat exchanger, and second level heat exchanger is connected with devaporizer by airduct.Devaporizer is connected with the processing blower fan.Handling blower fan also can be positioned over arbitrarily between the above miscellaneous part.More than each parts are the relations of contacting successively.
Described regeneration wind path footpath: first order desiccant wheel renewing zone is connected with primary heater by airduct.Second level desiccant wheel is connected with heater renewing zone, the second level by airduct.The regeneration blower fan is connected by airduct with first order desiccant wheel, desiccant wheel renewing zone, the second level respectively.First order desiccant wheel and first order heat exchanger are series relationship, are called first order regeneration side.Desiccant wheel renewing zone, the second level and second level heat exchanger are series relationship.Be called second level regeneration side.Between described first order regeneration side, the second level regeneration side is to be connected in parallel.
Described heat exchanger can be the cross-flow heat exchanger of air and air heat exchange, also can be the aqueous vapor heat exchanger.
Described heater can be the cross-flow heat exchanger of air and air heat exchange, also can be the aqueous vapor heat exchanger.
Described devaporizer is for realizing the direct evaporative cooler or the wet-membrane humidifier of equal-enthalpy humidifying.
Described dehumidizer comprises silica gel, lithium chloride, molecular sieve, compound dehumidizer etc.
The present invention is the two-stage rotating wheel dehumidification system, and outdoor new wind or indoor return air are carried out humidity and Temperature Treatment.Humidity is handled and is mainly finished by first order desiccant wheel, second level desiccant wheel, and Temperature Treatment is mainly finished by heat exchanger and devaporizer.Air flows and is divided into two paths, handles air (also claiming to handle wind) and regeneration air (also claiming regeneration wind).Handle air through behind the desiccant wheel, water capacity reduces, and temperature slightly rises.Regeneration air is through behind the runner, and water capacity reduces, and temperature slightly rises.Usually, the regeneration air temperature is higher than the processing air themperature.
Among the present invention, what introduce indoor utilization summer is to handle wind, promptly passes through the air of processing region, and runner plays the function of dehumidifying.What introduce indoor utilization winter is regeneration wind, promptly passes through the regeneration zone air, and runner works the function that increases water capacity in the air.The dehumidizer that uses can adopt low regeneration temperature (50～70 ℃) to be regenerated, and therefore can use the regeneration such as condenser waste heat, solar water, solar heat air of steam compression type refrigeration.
The present invention summer processing procedure be: after the first order desiccant wheel dehumidifying, handling air is cooled off by heat exchanger, flow through second level desiccant wheel once more, make and handle air drying more, dry processing wind is realized enthalpy drop by heat exchanger once more, by the devaporizer humidification of suitably lowering the temperature, be adjusted to suitable humiture state and send into indoor then.
Operation principle of the present invention is:
(1) air-conditioning temperature-reducing season, runner one side plays moisture in the absorbed air, i.e. exsiccation, and opposite side is removed the moisture that is adsorbed in the runner, i.e. palingenesis by high temperature air.Under the standard summer condition, the one-level runner can not be removed enough moisture, and is reduced to suitable temperature.Therefore by two-stage rotating wheel dehumidification, heat exchanger cooling polyphone, make processing air themperature, humidity be issued to mild temperature and low water capacity, handle by devaporizer again, reach and reduce temperature and suitable water capacity in hot and humid operating mode.
(2) heating adds hot-air by heater season, again by the rotary wheel regeneration district, increases airborne water capacity, reaches suitable humiture state, sends into indoor.
The present invention can be applicable to the summer air-conditioning and the heat supply in winter of occasions such as public building, commercial building, factory such as library, is fit to large and medium-sized system.
The relative prior art of the present invention has following advantage and effect:
(1) existing steam compression type electricity refrigeration air-conditioner easily causes peak of power consumption when summer, generally can not provide new wind, and need low temperature dehumidification, and wind pushing temperature is low.There is not humidification function winter.The present invention uses low-grade heat source, and can utilize the regenerative resource of solar energy, and only blower fan, motor use small amount of electrical energy, and remarkable in peak of power consumption saving in summer electric energy effect, the carbon dioxide discharge-reduction effect is remarkable.And air directly can be handled the humiture of indoor needs, it is more comfortable to blow.Can carry out the available heat wet process to new wind to the new wind of indoor input, and can reclaim indoor cold (heat) amount.Can be directly used in heat supply in winter, and have certain humidification function, thereby the system that makes all can obtain utilizing the whole year.
(2) existing single-stage dehumidification air conditioner can not reach the humiture of indoor comfort requirement in summer under the standard condition, and the present invention then can reach lower humiture, satisfies the air conditioning comfortableness requirement.
(3) the present invention is simple in structure, is easy to control, and the equipment investment expense is low, and the heat that is different from absorption, absorption refrigeration drives refrigeration modes, can realize that heat drives the miniaturization of air-conditioning equipment.Under the equal operating mode, energy efficiency is better than absorption, absorption type air-conditioner.Adopting natural refrigerants such as air, water is medium, and ozone free damage layer or greenhouse gas emission, environmental pollution problems are a kind of green energy conservation type refrigeration unit.
Description of drawings
Fig. 1 is the example structure schematic diagram that the present invention is based on two desiccant wheels
Fig. 2 is the structural representation of first order desiccant wheel subregion among Fig. 1
Fig. 3 is the structural representation of desiccant wheel subregion in the second level among Fig. 1
Fig. 4 is that the present invention's side of regenerating is equipped with the example structure schematic diagram of devaporizer
Fig. 5 is the heating system structural representation that the present invention is based on the utilized low-grade heat source two-stage rotating wheel dehumidification air conditioner device of two desiccant wheels
The specific embodiment
Below embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
The present embodiment structure as shown in Figure 1, present embodiment comprises: handle wind inlet airduct 1, first order desiccant wheel 2, first order desiccant wheel drive motors 3, the first order is handled heat exchanger 4, second level desiccant wheel 5, second level desiccant wheel drive motors 6, heat exchanger 7 is handled in the second level, and devaporizer 8 is handled blower fan 9, second level regeneration wind inlet airduct 10, second level regenerative heater 11, second level desiccant wheel drives belt 12, first order regeneration wind inlet airduct 13, first order regenerative heater 14, first order desiccant wheel drives belt 15, second level regeneration wind outlet airduct 16, regeneration blower fan 17.
As shown in Figure 2, first order desiccant wheel 2 treatment regions 18 are respectively 3/4 and 1/4 with the area that renewing zone 19 accounts for the runner cross section, also can be other ratios, as 1/2 and 1/2.As shown in Figure 3, desiccant wheel 5 treatment regions 20 in the second level are respectively 3/4 and 1/4 with the area that renewing zone 21 accounts for the runner cross section, also can be other ratios, as 1/2 and 1/2.The runner subregion ratio of first order desiccant wheel 2 can be identical with the runner subregion ratio of second level desiccant wheel 5, also can be different.
First order desiccant wheel drive motors 3 drives belt 15 (or gear) by first order desiccant wheel and is connected with first order desiccant wheel 2, drives first order desiccant wheel 2 and rotates.Second level desiccant wheel drive motors 6 drives belt 12 (or gear) by second level desiccant wheel and is connected with second level desiccant wheel 5, drives second level desiccant wheel 5 and rotates.
Air flows two paths, promptly handles wind path footpath and regeneration wind path footpath.
The connected mode of handling the wind path footpath is: handle wind inlet airduct 1 and be connected with the treatment region inlet side of first order desiccant wheel 2, the treatment region air side of first order desiccant wheel 2 is handled heat exchanger 4 processing side-entrances by the airduct and the first order and is connected.The first order is handled heat exchanger 4 processing side outlets and is connected with the treatment region inlet side of second level desiccant wheel 5 by airduct.The treatment region air side of second level desiccant wheel 5 is handled heat exchanger 7 processing side-entrances by the airduct and the second level and is connected, and the second level is handled heat exchanger 7 processing side outlets and is connected with devaporizer 8 by airduct.Devaporizer 8 is connected with processing blower fan 9 again.
The connected mode in regeneration wind path footpath is: first order regenerative heater 14 1 sides are connected with first order regeneration wind inlet airduct 13, opposite side is connected by the renewing zone of airduct with first order desiccant wheel 2, and air side, first order desiccant wheel renewing zone then is connected with regeneration blower fan 17.Regenerative heater 11 1 sides in the second level are connected with second level regeneration wind inlet airduct 10, and opposite side is connected by the renewing zone of airduct with second level desiccant wheel 5, and the air side, renewing zone of second level desiccant wheel 5 then is connected with regeneration blower fan 17.Two-stage regeneration side component is in state in parallel.
Structure based on said apparatus, the cool-down dehumidification mode of the two-stage rotating wheel dehumidification air-conditioning that the present embodiment device is realized is: outdoor air or indoor return air, perhaps indoor and outdoor is mixed wind (be called for short and handle air) by handling the treatment region that wind inlet airduct 1 enters first order desiccant wheel 2, airborne moisture is adsorbed by desiccant wheel, and this process is a constant-enthalpy process.Air themperature rises to some extent, if continue dehumidifying, effect on moisture extraction is with variation.Therefore this processing air then enters first order processing heat exchanger 4, and heat is passed to the cooling medium of heat exchanger opposite side, for example water or air.Then, fallen the treatment region that warm processing air enters second level desiccant wheel 5 once more, airborne moisture is further adsorbed by desiccant wheel 5, becomes the lower air of water capacity.Then, enter the second level once more and handle heat exchanger 7, heat is passed to the cooling medium of heat exchanger opposite side.Because the cooling medium of selecting for use are cooling tower cold water or outdoor air, or indoor return air, the temperature decline that processing wind is handled heat exchanger 7 through the second level does not reach comfortable air-supply requirement as yet.And because the processing wind water capacity of this moment is lower, promptly enthalpy drop has reached the air-supply requirement, handles distinguished and admirable pervaporation cooler 8, realizes reducing temperature and humidity increase water capacity, thereby reaches comfortable air-supply humiture operating mode.Handle wind and drive and send into air-conditioned room by the processing blower fan 9 that is positioned at devaporizer 8 outlets (handling blower fan 9 also can be arranged between the miscellaneous part of handling distinguished and admirable mistake).
First and second grade runner drive motors 3,6 drives first and second grade desiccant wheel 2,5 by belt (or gear) 15 respectively and rotates.First and second grade desiccant wheel adsorption moisture part rotates to the renewing zone and is reproduced air heat under the driving of motor, remove the moisture of absorption.Regeneration air can be outdoor air or indoor return air, enters first and second grade regenerative heater 14,11 respectively by first and second grade regeneration wind blast pipe, and is heated to the regeneration temperature that needs and enters the desiccant wheel renewing zone then.What the regeneration wind in process rotary wheel regeneration district experienced is constant-enthalpy process, and temperature descends to some extent, but water capacity increases.Flowing of two-stage regeneration wind drives (other positions that regeneration blower fan 17 also can be arranged in the distinguished and admirable mistake of regeneration) by the regeneration blower fan 17 that is arranged in the renewing zone outlet, and is discharged into outdoor.
Can the introducing of regeneration wind is indoor during winter, realize to indoor heating, and humidification.During heat supply in winter, handle wind side first order processing heat exchanger 4, second level processing heat exchanger 7 and devaporizer 8 and can not work, handle wind and discharge outdoor.
The present embodiment two-stage rotating wheel dehumidification air conditioner device can be applicable to the summer air-conditioning and the heat supply in winter of occasions such as public building, commercial building, factory such as library, is fit to large and medium-sized system.
Present embodiment realizes that heat drives the miniaturization of air-conditioning equipment, reduces the cost that heat drives air-conditioning equipment; Have simple in structurely, system operation is easy to characteristics such as control, can effectively utilize low-grade heat sources such as solar energy, and non-environmental-pollution is a kind of green energy conservation type refrigeration unit.
The version of present embodiment as shown in Figure 4, the two-stage rotating wheel dehumidification air-conditioning comprises: handle wind inlet airduct 1, first order desiccant wheel 2, first order desiccant wheel drive motors 3, the first order is handled regenerator 22, second level desiccant wheel 5, second level desiccant wheel drive motors 6, regenerator 23 is handled in the second level, devaporizer 8, handle blower fan 9, second level regeneration wind inlet airduct 10, second level regenerative heater 11, second level desiccant wheel drives belt 12, first order regeneration wind inlet airduct 13, first order regenerative heater 14, first order desiccant wheel drives belt 15, second level regeneration wind outlet airduct 16, regeneration blower fan 17, regeneration wind inlet house steward 24, regeneration side devaporizer 25.Fig. 2, Fig. 3 are first order desiccant wheel 2, second level desiccant wheel 5 partitioned organization schematic diagrames, and first order desiccant wheel 2 treatment regions 18 are respectively 3/4 and 1/4 with the area that renewing zone 19 accounts for the runner cross section, also can be other ratios, as 1/2 and 1/2.As shown in Figure 3, desiccant wheel 5 treatment regions 20 in the second level are respectively 3/4 and 1/4 with the area that renewing zone 21 accounts for the runner cross section, also can be other ratios, as 1/2 and 1/2.The runner subregion ratio of first order desiccant wheel 2 can be identical with the runner subregion ratio of second level desiccant wheel 5, also can be different.
The difference of present embodiment and embodiment 1 is: increased regeneration side devaporizer 25, air or indoor return air that environment is introduced are lowered the temperature, regeneration side devaporizer 25 is handled regenerator 22 with the regeneration wind first order and is connected, regeneration side devaporizer 25 is also handled regenerator 23 with the second level and is connected, and is used for cooling processing wind.
First order desiccant wheel drive motors 3 drives belt 15 (or gear) by first order desiccant wheel and is connected with first order desiccant wheel 2, drives first order desiccant wheel 2 and rotates.Second level desiccant wheel drive motors 6 drives belt 12 (or gear) by second level desiccant wheel and is connected with second level desiccant wheel 5, drives second level desiccant wheel 5 and rotates.
Air flows two paths, promptly handles wind path footpath and regeneration wind path footpath.The connected mode of handling the wind path footpath is: handle wind inlet airduct 1 and be connected with the treatment region inlet side of first order desiccant wheel 2, the treatment region air side of first order desiccant wheel 2 is handled regenerator 22 processing side-entrances by the airduct and the first order and is connected.The first order is handled regenerator 22 processing side outlets and is connected with the treatment region inlet side of second level desiccant wheel 5 by airduct.The treatment region air side of second level desiccant wheel 5 is handled regenerator 23 processing side-entrances by the airduct and the second level and is connected, and the second level is handled regenerator 23 processing side outlets and is connected with devaporizer 8 by airduct.Devaporizer 8 is connected with processing blower fan 9 again.
The connected mode in regeneration wind path footpath is: regeneration wind inlet house steward 24 is connected with regeneration side devaporizer 25.25 outlets of regeneration side devaporizer respectively with the and the second level handle regenerator 23 and be connected.First order regenerative heater 14 1 sides are handled regenerator 22 with the first order and are connected, and opposite side is connected by the renewing zone of airduct with first order desiccant wheel 2, and air side, first order desiccant wheel renewing zone then is connected with regeneration blower fan 17.Regenerative heater 11 1 sides in the second level are handled regenerator 23 with the second level and are connected, and opposite side is connected by the renewing zone of airduct with second level desiccant wheel 5, and the air side, renewing zone of second level desiccant wheel 5 then is connected with regeneration blower fan 17.Two-stage regeneration side component is in state in parallel.
Structure based on said apparatus, the cool-down dehumidification mode of the two-stage rotating wheel dehumidification air-conditioning that present embodiment is realized is: outdoor air or indoor return air, perhaps indoor and outdoor is mixed wind (be called for short and handle air) by handling the treatment region that wind inlet airduct 1 enters first order desiccant wheel 2, airborne moisture is adsorbed by desiccant wheel, and this process is a constant-enthalpy process.Air themperature rises to some extent, if continue dehumidifying, effect on moisture extraction is with variation.Therefore this processing air then enters first order processing regenerator 22, and heat is passed to the cooling medium of heat exchanger opposite side, promptly passes through the air of devaporizer.Then, fallen the treatment region that warm processing air enters second level desiccant wheel 5 once more, airborne moisture is further adsorbed by desiccant wheel 5, becomes the lower air of water capacity.Then, enter the second level once more and handle regenerator 7, heat is passed to the cooling medium of heat exchanger opposite side.Because the cooling medium of selecting for use are cooling tower cold water or outdoor air, or indoor return air, the temperature decline that processing wind is handled regenerator 23 through the second level does not reach comfortable air-supply requirement as yet.And because the processing wind water capacity of this moment is lower, promptly enthalpy drop has reached the air-supply requirement, handles distinguished and admirable pervaporation cooler 8, realizes reducing temperature and humidity increase water capacity, thereby reaches comfortable air-supply humiture operating mode.Handle flowing of wind and drive and send into air-conditioned room by the processing blower fan 9 that is positioned at devaporizer 8 outlets (handling blower fan 9 also can be arranged between the miscellaneous part of handling distinguished and admirable mistake).
First and second grade runner drive motors 3,6 drives first and second grade desiccant wheel 2,5 by belt (or gear) respectively and rotates.First and second grade desiccant wheel adsorption moisture part rotates to the renewing zone and is reproduced air heat under the driving of motor, remove the moisture of absorption.Regeneration air can be outdoor air or indoor return air, enters regeneration side devaporizer 25 by regeneration wind inlet house steward 24, equal-enthalpy humidifying, and temperature descends.Enter first and second grade processing heat exchanger then respectively, be used for cooling processing wind, and obtain preheating.Enter first and second grade regenerative heater 14,11 again, and be heated to the regeneration temperature that needs and enter the desiccant wheel renewing zone then.Flowing of two-stage regeneration wind drives (other positions that regeneration blower fan 17 also can be arranged in the distinguished and admirable mistake of regeneration) by the regeneration blower fan 17 that is arranged in the renewing zone outlet, and is discharged into outdoor.
The present embodiment two-stage rotating wheel dehumidification air conditioner device can be applicable to the summer air-conditioning and the heat supply in winter of occasions such as public building, commercial building, factory such as library, is fit to large and medium-sized system.
Present embodiment realizes that heat drives the miniaturization of air-conditioning equipment, reduces the cost that heat drives air-conditioning equipment; Have simple in structurely, system operation is easy to characteristics such as control, can effectively utilize low-grade heat sources such as solar energy, and non-environmental-pollution is a kind of green energy conservation type refrigeration unit.
The version of present embodiment as shown in Figure 5.The structure of present embodiment is compared with embodiment 2, and the regeneration side does not have devaporizer, only is used for heat supply in winter.
Compare with embodiment 2, its connected mode difference is:
Handling wind is connected with processing blower fan 9 by airduct 27 through first order processing regenerator 22 processing side outlets.The second level is handled wind inlet pipe 26 and is connected with the treatment region inlet side of second level desiccant wheel 5, the treatment region air side of second level desiccant wheel 5 is handled regenerator 23 processing side-entrances by the airduct and the second level and is connected, and the second level is handled regenerator 23 and is connected with devaporizer 8 by airduct.Devaporizer 8 is connected with processing blower fan 9 again.The bi-level treatment side component is in state in parallel.
The connected mode in regeneration wind path footpath is similar to embodiment 2, but can not connect devaporizer, and two-stage regeneration side component is in state in parallel.
Structure based on said apparatus, the cool-down dehumidification mode of the two-stage rotating wheel dehumidification air-conditioning that present embodiment is realized is: outdoor air or indoor return air, perhaps indoor and outdoor is mixed wind (be called for short and handle air) by handling the treatment region that wind inlet airduct 1 enters first order desiccant wheel 2, airborne moisture is adsorbed by desiccant wheel, and this process is a constant-enthalpy process.Air themperature rises to some extent, can handle regenerator 22 preheatings regeneration side air by the first order.Discharge outdoor by handling blower fan 9 then.Second level processing side air flow process and state variation are identical with the first order.
First and second grade runner drive motors 3,6 drives first and second grade desiccant wheel 2,5 by belt (or gear) respectively and rotates.First and second grade desiccant wheel adsorption moisture part (treatment region) rotates to the renewing zone and is reproduced air heat under the driving of motor, the moisture of runner absorption is removed.
Regeneration air can be outdoor air or indoor return air, enters first and second grade regenerative heater 14,11 respectively by first and second grade regeneration wind blast pipe 10,13, and is heated to uniform temperature and enters the desiccant wheel renewing zone then.In the renewing zone, regeneration air obtains the moisture of runner absorption, the experience constant-enthalpy process, and temperature descends slightly.Flowing of two-stage regeneration wind drives (other positions that regeneration blower fan 17 also can be arranged in the distinguished and admirable mistake of regeneration) by the regeneration blower fan 17 that is arranged in the renewing zone outlet, and sends into indoor.
The present embodiment two-stage rotating wheel dehumidification air conditioner device can be applicable to the summer air-conditioning and the heat supply in winter of occasions such as public building, commercial building, factory such as library, is fit to large and medium-sized system.
Claims (6)
1, a kind of two-stage rotating wheel dehumidification air conditioner device that utilizes low-grade heat source, comprise: the two stage dehumidify runner, the two-stage heat exchanger, two heaters, devaporizer, handle blower fan, the regeneration blower fan, motor, belt or gear, it is characterized in that: motor is connected with desiccant wheel by belt or gear, the drive desiccant wheel rotates, each desiccant wheel is divided into two zones of treatment region and renewing zone, the treatment region of first order desiccant wheel is connected with the import of first order heat exchanger, first order heat exchanger exit is connected with a side of the treatment region of second level desiccant wheel, the opposite side of the treatment region of second level desiccant wheel is connected with second level heat exchanger, second level heat exchanger is connected with devaporizer, the regeneration blower fan is connected with a side of the renewing zone of two stage dehumidify runner respectively, and two heaters are connected with the opposite side of the renewing zone of two stage dehumidify runner respectively.
2, the two-stage rotating wheel dehumidification air conditioner device that utilizes low-grade heat source according to claim 1, it is characterized in that, described first order desiccant wheel treatment region is connected with first order heat exchanger by airduct, this first order heat exchanger is connected with a side of second level desiccant wheel treatment region again, and the opposite side of second level desiccant wheel treatment region is connected by airduct with second level heat exchanger, second level heat exchanger is connected with devaporizer by airduct, devaporizer is connected with the processing blower fan, constitutes the processing wind path footpath of whole device.
3, the two-stage rotating wheel dehumidification air conditioner device that utilizes low-grade heat source according to claim 1, it is characterized in that, described first order desiccant wheel renewing zone is connected with primary heater by airduct, second level desiccant wheel is connected with heater renewing zone, the second level by airduct, regeneration blower fan respectively with first order desiccant wheel, desiccant wheel renewing zone, the second level connects and composes the regeneration wind path footpath of whole device by airduct, wherein first order desiccant wheel and first order heat exchanger are that series relationship is a first order regeneration side, desiccant wheel renewing zone, the second level and second level heat exchanger are that series relationship is a second level regeneration side, described first order regeneration side, between the second level regeneration side is to be connected in parallel.
4, according to claim 1 or the 2 or 3 described two-stage rotating wheel dehumidification air conditioner devices that utilize low-grade heat source, it is characterized in that described heat exchanger is the cross-flow heat exchanger of air and air heat exchange, or the aqueous vapor heat exchanger.
5, according to claim 1 or the 3 described two-stage rotating wheel dehumidification air conditioner devices that utilize low-grade heat source, it is characterized in that described heater is the cross-flow heat exchanger of air and air heat exchange, or the aqueous vapor heat exchanger.
6, the two-stage rotating wheel dehumidification air conditioner device that utilizes low-grade heat source according to claim 1 and 2 is characterized in that, described devaporizer is for realizing the direct evaporative cooler or the wet-membrane humidifier of equal-enthalpy humidifying.
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| CNB2007100459012A CN100494793C (en) | 2007-09-13 | 2007-09-13 | Two-stage rotating wheel dehumidification air conditioner device capable of using low-grade heat source |
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| CNB2007100459012A Expired - Fee Related CN100494793C (en) | 2007-09-13 | 2007-09-13 | Two-stage rotating wheel dehumidification air conditioner device capable of using low-grade heat source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4269887A1 (en) * | 2022-04-27 | 2023-11-01 | Trane International Inc. | Air dehumidifier |
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2007
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4269887A1 (en) * | 2022-04-27 | 2023-11-01 | Trane International Inc. | Air dehumidifier |
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| CN101122409A (en) | 2008-02-13 |
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