CN220436669U - Fresh air conditioner utilizing solar energy for dehumidification - Google Patents
Fresh air conditioner utilizing solar energy for dehumidification Download PDFInfo
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- CN220436669U CN220436669U CN202321080663.XU CN202321080663U CN220436669U CN 220436669 U CN220436669 U CN 220436669U CN 202321080663 U CN202321080663 U CN 202321080663U CN 220436669 U CN220436669 U CN 220436669U
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 58
- 230000008929 regeneration Effects 0.000 claims abstract description 31
- 238000011069 regeneration method Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000001172 regenerating effect Effects 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 34
- 238000004378 air conditioning Methods 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 238000005485 electric heating Methods 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 238000005057 refrigeration Methods 0.000 abstract description 6
- 238000011282 treatment Methods 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 238000004146 energy storage Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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Abstract
The utility model discloses a fresh air conditioner utilizing solar energy for dehumidification, which comprises: the solution dehumidifying equipment is connected with external fresh air at the input end and is used for dehumidifying the input fresh air; the air conditioner fresh air unit is used for receiving the fresh air dehumidified by the solution dehumidification equipment and outputting the fresh air to the fan coil; the refrigerating host is used for cooling the air after sending the high-temperature chilled water into the air conditioner and sending fresh air reaching a state point into a room; and the solution recovery and regeneration system is connected with the solution dehumidification equipment and is used for recovering the dilute solution generated after the use of the solution dehumidification equipment and regenerating the dilute solution into the concentrated solution to be supplied to the solution dehumidification equipment. The utility model realizes energy conservation and emission reduction from three aspects of latent heat load of the air conditioner, COP of the refrigeration host, reheat load in the air treatment process, and expands the application of solar energy which is widely existing and easily obtained and is high-grade energy in the field of energy conservation of the air conditioner.
Description
Technical Field
The utility model relates to the field of air conditioning refrigeration, in particular to a fresh air conditioner utilizing solar energy for dehumidification.
Background
In the context of dual carbon, new energy development has become increasingly prominent in various industries in recent years. Among them, solar energy, an important clean energy, plays a role in the development of new energy applications, but is not fully utilized due to the numerous limitations of solar energy. Meanwhile, the air conditioner is taken as an important energy consumption source in national economy operation, and new energy sources and new technology are also urgently needed to be applied to reduce carbon emission.
In the conventional air conditioning system, the air to be treated is cooled and dehumidified by using an air treatment unit, the temperature required for dehumidification is far lower than the temperature required for sensible heat of the air to be treated, and because the source of cold water used for dehumidification and other air treatments or both is the same source, low-temperature chilled water is required for the temperature of chilled water, and the evaporation temperature has to be reduced for a host to provide a lower chilled water temperature to achieve the dehumidification effect, the efficiency of the refrigerator is also reduced. The refrigeration efficiency of the air conditioning system can be greatly improved by adopting a temperature and humidity separation method.
The conventional dehumidification adopts solid rotary dehumidification or absorption solution dehumidification, but the solid dehumidification mode has the fatal weakness that the operation process is dynamic, and the mixing loss among the operation process and the absorption solution dehumidification greatly affects the efficiency. In addition, the isothermal dehumidification process is difficult to realize by adopting solid hygroscopic materials for dehumidification, the temperature of the dehumidifier is increased by latent heat released in the dehumidification process, so that the hygroscopic capacity is greatly reduced, and the irreversible loss of heat and mass transfer in the whole process is large and the final efficiency is low.
Solar energy has the defects of limited energy supply, instability, large occupied area, influence of weather factors and the like, but the solar energy belongs to free energy, and the solar energy power is in direct proportion to the energy consumed by dehumidification, so that the advantages of the solar energy are not ignored.
Disclosure of Invention
The utility model aims to solve the technical problem that the fresh air conditioner dehumidifies by utilizing solar energy, and independently controls the temperature and the humidity of a fresh air conditioning system through solution dehumidification, and simultaneously, the temperature of the chilled water of the air conditioning host can be further increased and the COP of the air conditioning host can be further increased because low-temperature water dehumidification is not needed any more; the solar energy is used as an energy source for regenerating the solution in the process of dehumidifying the solution, so that the energy for eliminating the latent heat load in the system by the air conditioner host is replaced.
The utility model is realized by the following technical scheme: comprising the following steps:
the solution dehumidifying equipment is connected with external fresh air at the input end and is used for dehumidifying the input fresh air;
the air conditioner fresh air unit is used for receiving the fresh air dehumidified by the solution dehumidification equipment and outputting the fresh air to the fan coil;
the refrigerating host is used for cooling the air after sending the high-temperature chilled water into the air conditioner and sending fresh air reaching a state point into a room;
and the solution recovery and regeneration system is connected with the solution dehumidification equipment and is used for recovering the dilute solution generated after the use of the solution dehumidification equipment and regenerating the dilute solution into the concentrated solution to be supplied to the solution dehumidification equipment.
As a preferred technical scheme, the solution recovery and regeneration system comprises a solar energy regeneration device and a liquid storage tank, wherein the liquid storage tank is used for storing the concentrated solution and the diluted solution.
As the preferable technical scheme, the solar energy regeneration device comprises a shell, an electric heating component is arranged in the shell, the electric heating component supplies power after generating electricity through a solar photovoltaic panel, when the dilute solution enters the shell, the dilute solution is heated by the electric heating component, the dilute solution is regenerated into the concentrated solution, and an output port of the concentrated solution is connected with a concentrated solution storage tank.
The solar energy regeneration device is characterized by further comprising an auxiliary heating device, wherein the auxiliary heating device is arranged in the solar energy regeneration device and is used for auxiliary heating of the internal dilute solution, and a power supply end of the auxiliary heating device is connected with a commercial power.
As a preferable technical scheme, the liquid storage tank comprises a dilute solution liquid storage tank and a concentrated solution liquid storage tank;
the dilute solution storage tank is connected with the output end of the solution dehumidifying equipment and is used for receiving dilute solution discharged by the solution dehumidifying equipment;
the output end of the dilute solution storage tank is connected with a solar energy regeneration device, the output end of the solar energy regeneration device is connected with a concentrated solution storage tank, and the output end of the concentrated solution storage tank is connected with a solution dehumidification device.
As an optimal technical scheme, the air conditioning system adopts independent temperature and humidity control.
The optimal technical scheme also comprises a controller which consists of an industrial personal computer and an OPC server, wherein the OPC server collects data and uploads the data to the industrial personal computer, and the industrial personal computer controls the starting time of the auxiliary heating device according to the uploaded data.
The beneficial effects of the utility model are as follows:
1. the utility model realizes energy conservation and emission reduction from three aspects of latent heat load of the air conditioner, COP of the refrigeration host, reheat load in the air treatment process, and expands the application of solar energy which is widely existing and easily obtained and is high-grade energy in the field of energy conservation of the air conditioner.
2. The utility model realizes energy storage by arranging the solution storage tank.
3. The auxiliary heating device is arranged, so that the running reliability of the system is ensured, and the night off-peak electricity can be utilized for low-cost preparation.
4. The utility model can reduce the energy consumption of the air conditioner by more than 20 percent all the year round, and effectively reduces the energy consumption of an air conditioning system and the whole building.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of the present utility model;
fig. 2 is a linear diagram of the present utility model.
Description of the embodiments
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
In the description of the present utility model, it should be understood that the terms "one end," "the other end," "the outer side," "the upper," "the inner side," "the horizontal," "coaxial," "the center," "the end," "the length," "the outer end," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, in the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Terms such as "upper," "lower," and the like used herein to refer to a spatially relative position are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly
In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "coupled," "connected," "plugged," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1, the input end of the solution dehumidifying device is connected with external fresh air, and the solution dehumidifying device is used for dehumidifying the input fresh air;
the air conditioner fresh air unit is used for receiving the fresh air dehumidified by the solution dehumidification equipment and outputting the fresh air to the fan coil;
the refrigerating host is used for cooling the air after sending the high-temperature chilled water into the air conditioner and sending fresh air reaching a state point into a room;
and the solution recovery and regeneration system is connected with the solution dehumidification equipment and is used for recovering the dilute solution generated after the use of the solution dehumidification equipment and regenerating the dilute solution into the concentrated solution to be supplied to the solution dehumidification equipment.
The solution dehumidifying equipment sucks water in fresh air into the solution in the dehumidifying process to form a dilute solution, the dilute solution is sent into a dilute solution storage tank, the dilute solution generated in the process is sent into a solar energy regenerating device for regeneration, and is sent into the storage tank for storage after being changed into a concentrated solution, and the concentrated solution is sent into the dehumidifying equipment when the solution dehumidifying equipment is needed. Meanwhile, auxiliary heating equipment is additionally arranged, and enough concentrated solution is regenerated through the auxiliary heating equipment when solar energy is insufficient for auxiliary heating. In addition, the system is provided with an intelligent controller, and the controller can calculate the amount of concentrated solution required by the dehumidification system on the next day in the future according to weather forecast. And meanwhile, the solution quantity which can be generated by solar energy in the future is predicted, and the controller can prepare the concentrated solution required by solution dehumidification before the off-peak electricity is utilized at night. Thereby realizing the effects of peak shifting, valley filling, energy storage, low valley electricity and electricity fee saving.
The fresh air is dehumidified by the solution dehumidification equipment, and the solution becomes thin after the solution is dehumidified. The dilute solution is firstly conveyed into a dilute solution storage tank, and then the dilute solution is conveyed into a solar solution regeneration device. If the generated dilute solution is too much, the solar energy solution regeneration device can not regenerate in time, the dilute solution which can not be treated is stored in the solution tank, and the dilute solution is sent into the solar energy solution regeneration device when the energy is sufficient. Meanwhile, a concentrated solution storage tank is arranged, when the solar energy is sufficient but the concentrated solution of the solution dehumidifying equipment is sufficient, the concentrated solution regenerated in the solar energy solution regenerating device can be stored in the concentrated solution tank, and the energy storage of the solar energy is realized when the solution dehumidifying equipment is used. Meanwhile, in the solution regeneration system, the auxiliary heating equipment with municipal power supply is arranged, and when the solar energy is insufficient, the solar solution regeneration device is insufficient to supply enough concentrated solution of the solution dehumidification equipment for dehumidification, the controller can start the auxiliary heating equipment to continuously regenerate the solution so as to ensure that the concentrated solution can be continuously supplied.
Meanwhile, in order to adapt to seasons with long-term shortage of solar energy, the auxiliary heating system can also realize off-peak electricity energy storage. The controller of the auxiliary heating device can predict the solution consumption L1 of the future day and the solution quantity L2 which can be regenerated by the solar solution regeneration device in the future day according to the information such as the weather forecast of the next day in the future, when L1 is more than L2, the controller can start the auxiliary heating device at night, prepare concentrated solution before the night off-peak electricity is used, and store the prepared concentrated solution in the concentrated solution tank, so that the off-peak electricity energy storage is realized, the electricity charge of a user is saved, and the peak shifting and valley filling is realized, and the pressure of a power grid is relieved.
As shown in fig. 2, the air treatment scheme is changed to a mode in which all latent heat load and part of sensible heat load are borne by fresh air and the wind panel bears the sensible heat load, so that low temperature water is not required for the air conditioning system. The refrigerating host is changed into high-temperature water according to the formula:
Ɛ c-refrigeration coefficient
T0-Evaporation temperature
Tk-condensing temperature
It can be concluded that the COP of the ideal cycle, i.e. the refrigeration host, increases as the evaporation temperature increases. Finally, energy conservation of the air conditioning system is realized. Meanwhile, the temperature of the point parameter is greatly increased due to the reduction of the temperature of the water supply and the state that the air is processed by the equipment. The condition of reheating is avoided, so that the reheating energy consumption is further reduced.
In this embodiment, the solution recycling and regenerating system includes a solar energy regenerating device and a liquid storage tank, where the liquid storage tank is used to store a concentrated solution and a diluted solution; in this embodiment, solar energy regenerating unit includes a casing, and the built-in electrical heating subassembly of casing, the electrical heating subassembly is supplied power after passing through solar photovoltaic board electricity generation, and after thin solution entered into the casing in, through electrical heating subassembly heating thin solution, with thin solution regeneration for thick solution, thick solution delivery outlet connects thick solution liquid storage pot, solar energy solution regenerating unit utilizes solar photovoltaic board electricity generation to the inside electrical heating unit power supply compare in directly using solar heat to heat regeneration solution, uses electrical heating to avoid the material to select the problem of using, if directly use metal, the device is difficult to resist the corruption of thick solution, if use plastics then has the factor that solar insolation led to plastics efflorescence. Meanwhile, the solar power generation is utilized to supply power for the heating device, so that the energy loss in the inversion process in the traditional solar power generation is less, and the inverter is not required to be arranged, so that the cost is lower. And the electric heating mode is less in conflict with the auxiliary heating device which also uses electric energy as energy source in use.
In this embodiment, the solar energy heat generating device further comprises an auxiliary heating device, wherein the auxiliary heating device is installed in the solar energy regeneration device and is used for auxiliary heating of the internal dilute solution, and a power supply end of the auxiliary heating device is connected with a commercial power; the auxiliary heating makes up the possible defects of solar energy in the use process, and can also play an energy storage role in advance; the system estimates the solar condition of the next day and the concentrated solution needed by the dehumidification of the solution of the next day in advance through the industrial personal computer according to the current season and the weather forecast of the next day; when the system estimates that solar energy for a future day is insufficient to meet the solution regeneration needs during the dehumidification of the solution for that day, the system will use the night off-peak electricity to prepare the solution.
In this embodiment, the liquid storage tank includes a dilute solution storage tank and a concentrated solution storage tank;
the dilute solution storage tank is connected with the output end of the solution dehumidifying equipment and is used for receiving dilute solution discharged by the solution dehumidifying equipment;
the output end of the dilute solution storage tank is connected with a solar energy regeneration device, the output end of the solar energy regeneration device is connected with a concentrated solution storage tank, and the output end of the concentrated solution storage tank is connected with solution dehumidification equipment; because solar energy can not be completely matched with the dehumidification amount of the solution dehumidification, the energy storage function can be realized by utilizing the solution liquid storage tank, a part of solar energy is stored for standby, the stability of a system is increased, and the storage and recovery of solar energy are enhanced. Meanwhile, in consideration of the weather that continuous overcast and rainy weather possibly occurs in certain seasons, the solar energy is seriously insufficient and cannot be supplied to the system, and the solar energy can only be maintained by using the auxiliary heating of the commercial power. The concentrated solution is prepared by using night off-peak electricity, the storage of the low-price electric energy at night is realized by the liquid storage tank, the peak shifting and off-peak filling significance is greatly realized, and meanwhile, the electricity charge expenditure of owners in use is greatly reduced.
In this embodiment, the air conditioning system adopts an independent temperature and humidity control system.
In this embodiment, the device further includes a controller, which is composed of an industrial personal computer and an OPC server, the OPC server collects data and uploads the data to the industrial personal computer, and the industrial personal computer controls the on time of the auxiliary heating device according to the uploaded data.
The energy-saving principle is as follows:
firstly, the fresh air completes the dehumidification process of the fresh air through the solution dehumidification system, so that the energy efficiency of the whole air conditioning system is reduced due to dehumidification of the air conditioner, and the heat required to be reheated due to too low cooling dehumidification temperature is directly saved. The clusters of people in public buildings are concentrated in the daytime and thus the wet load is concentrated in the daytime for a period of time where the solar energy is sufficient, so that the intensity of solar radiation available in practical use is positively correlated with the energy consumption required for dehumidifying the load. Secondly, because the fresh air is dehumidified, sensible heat load of cooling the air conditioning unit or the fan coil and the like does not need too low water supply temperature, the required chilled water temperature can rise, the evaporating temperature of the air conditioning host can be provided, and the COP of the air conditioning host rises.
The system operation principle is as follows:
fresh air enters solution dehumidifying equipment from the outside, and is sent to a fresh air unit after being dehumidified. The air conditioning fresh air unit processes fresh air to a designed state point. And meanwhile, the host machine sends the high-temperature chilled water into air conditioning subsequent air treatment equipment to cool the air, and finally, the state point of the air reaches the designed state point and is sent into a room, so that the control of the indoor temperature and humidity environment is ensured. And (3) delivering the dilute solution generated by the solution dehumidifying system into solar solution regenerating equipment for regeneration, and storing the regenerated concentrated solution into a liquid storage tank. When the solar energy supply is insufficient, the commercial power auxiliary heat is used for ensuring that the solution regeneration meets the dehumidification requirement.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (7)
1. A fresh air conditioner utilizing solar energy for dehumidification, which is characterized by comprising:
the solution dehumidifying equipment is connected with external fresh air at the input end and is used for dehumidifying the input fresh air;
the air conditioner fresh air unit is used for receiving the fresh air dehumidified by the solution dehumidification equipment and outputting the fresh air to the fan coil;
the refrigerating host is used for cooling the air after sending the high-temperature chilled water into the air conditioner and sending fresh air reaching a state point into a room;
and the solution recovery and regeneration system is connected with the solution dehumidification equipment and is used for recovering the dilute solution generated after the use of the solution dehumidification equipment and regenerating the dilute solution into the concentrated solution to be supplied to the solution dehumidification equipment.
2. The fresh air conditioner for dehumidification by solar energy according to claim 1, wherein: the solution recycling and regenerating system comprises a solar energy regenerating device and a liquid storage tank, wherein the liquid storage tank is used for storing concentrated solution and dilute solution.
3. The fresh air conditioner for dehumidification by solar energy according to claim 2, wherein: the solar energy regeneration device comprises a shell, an electric heating component is arranged in the shell, the electric heating component supplies power after generating electricity through a solar photovoltaic panel, when dilute solution enters the shell, the dilute solution is heated through the electric heating component, the dilute solution is regenerated into concentrated solution, and a concentrated solution output port is connected with a concentrated solution storage tank.
4. A fresh air conditioner utilizing solar energy for dehumidification as set forth in claim 3, wherein: the solar energy regeneration device is characterized by further comprising an auxiliary heating device, wherein the auxiliary heating device is arranged in the solar energy regeneration device and is used for auxiliary heating of the internal dilute solution, and a power supply end of the auxiliary heating device is connected with a commercial power.
5. The fresh air conditioner for dehumidification by solar energy according to claim 2, wherein: the liquid storage tank comprises a dilute solution storage tank and a concentrated solution storage tank;
the dilute solution storage tank is connected with the output end of the solution dehumidifying equipment and is used for receiving dilute solution discharged by the solution dehumidifying equipment;
the output end of the dilute solution storage tank is connected with a solar energy regeneration device, the output end of the solar energy regeneration device is connected with a concentrated solution storage tank, and the output end of the concentrated solution storage tank is connected with a solution dehumidification device.
6. The fresh air conditioner for dehumidification by solar energy according to claim 1, wherein: the air conditioning system adopts an independent temperature and humidity control system.
7. The fresh air conditioner for dehumidification by solar energy according to claim 1, wherein: the controller is composed of an industrial personal computer and an OPC server, the OPC server collects data and uploads the data to the industrial personal computer, and the industrial personal computer controls the starting time of the auxiliary heating device according to the uploaded data.
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| CN202321080663.XU CN220436669U (en) | 2023-05-08 | 2023-05-08 | Fresh air conditioner utilizing solar energy for dehumidification |
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| CN202321080663.XU CN220436669U (en) | 2023-05-08 | 2023-05-08 | Fresh air conditioner utilizing solar energy for dehumidification |
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